EE 595 – Team No. 1 by pengxiuhui

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									University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                      Security Dialer




  Capstone Design Project                      Eric Biehr
  EE 318-595 Spring 2004                     Mario Divis

  Design Team No. 1                           Igor Stevic
                                            Edwin Sofian
  Security Dialer                           Kelly Chapin
Capstone Design Project                              Slide 0
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                 Security Dialer

                                 Design Team Members




         Mario Divis                     Edwin Sofian                Kelly Chapin




                           Igor Stevic                  Eric Biehr




Capstone Design Project                                                             Slide 1
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer


                          Security Dialer Project Selection

       This design is favored because it offers individual
        challenges to each team member, is easily scalable and
        covers many electrical design aspects as well as project
        requirements.

       Major risks include exceeding the projected budget and
        over-scoping of project blocks.

       Other projects were rejected because they were not
        complex enough to satisfy high level requirements.

       This project was unanimously supported by all team
        members.


Capstone Design Project                                            Slide 2
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer

                                      Product Definition
        Automated home security monitoring system
               Emergency status notification through phone line
               Internet status monitoring including remote control of the
                system
               CO monitoring, door or window opening, standing water
                sensor and AC power failure notification
               Backup DC battery in the event of AC power failure
               Audible alarm in case of an emergency

        The home security system is a common product on the
         market but the internet and phone access makes it unique
        This product belongs to a general consumer products/home
         security industry


Capstone Design Project                                                      Slide 3
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                          Security Dialer

                                 Standard Requirements
     Major competitors include ADT, Brinks, CyberEye and GE
     Annual volume of 5000 units
     To be sold to North American home owners
     Installation intended by user or contractor, distributed by retailers
     Intended purpose is for life and asset protection
     Indoor use only
     Temporary 60Hz 120VAC power supply with permanent 12VDC
      rechargeable reserve battery
     Stainless steel prototype enclosure
     12 months replacement warranty
     Recycle product according to government regulations
     Product Life of 100,000 Hours MTBF

Capstone Design Project                                                       Slide 4
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                    Security Dialer
     Standard Requirements                          Minimum   Maximum
     Operating Temperature Range (°C)                 -10       50
     Operating Humidity Range (Rh) Non-condensing     0%        85%
     Operating Altitude Range (meters)                 0       8,000
     Storage Temperature Range (°C)                   -20       50
     Storage Humidity Range (Rh) Non-condensing        0        90%
     Storage Altitude Range (meters)                   0       13,000
     Storage Duration (years)                                    5
     Product Weight (lbs)                                       14
     Product Volume (cm³)                                      27,000
     Shipping Package Volume (cm³)                             32,000
     Operational Drop @ 3 meters (G)                             1
     Vibration and Shock (G)                                    10
     Power Consumption (Watts)                                  25
     Product Cost ($)                                           220
     Prototype Cost ($)                                         600
     List Price ($)                                   350
     Parts Count                                                100
     Unique Parts Count                                         40
     PC Board Count                                    1         3
     PC Board Area (cm²)                                        500
Capstone Design Project                                                 Slide 5
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                        Security Dialer

                              Performance Requirements
     Armed and Standby operational modes
     LCD output displaying status indication and user menu
           Viewable within 1 meter
           20 x 4 character display
           Backlight option for increased visibility
     16 key Alpha-Numeric Keypad for user operation and functionality
     Panasonic Omni-directional Electret Microphone
     Audible siren >100dB
     External electrical interfaces
           RJ11 phone line output
           RJ45 Ethernet connection
           AC standard 3-prong Nema input
           Three 3mm single row 2 and 3 pin Molex sensor input connectors

Capstone Design Project                                                  Slide 6
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                       Security Dialer

                              Performance Requirements
     Unique components
           Atmel AVR AT90S8515 microprocessor
           Winbond ISD2560 voice recording chip
           Holtek HT93214A dialer chip
           Clare M98202 Precise Call Progress Tone Detector
           Sena Technologies Ethernet controller and web server




Capstone Design Project                                            Slide 7
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer

                          Safety Regulation Requirements
     Federal Communications Commission
         Part 68
              Governs the direct connection of terminal equipment to the Public
               Switched Telephone Network
              Contains rules concerning for automated dialing machines
     Underwriters Laboratory Standards
         UL639
              Intrusion-detection units intended to be used in burglary-protection
               signaling systems
         UL1023
              Household burglar-alarm system units
         UL1950
              Mains-powered or battery-powered information technology equipment
     Canadian Standards Association
         CSA C22.2 No. 205
              Signal equipment
         CSA C22.2 No. 60950
              Information technology equipment

Capstone Design Project                                                        Slide 8
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                   Security Dialer


                Electromagnetic Compatibility Standards
     EN50081-1: 1992
         Generic emission standard, part 1: residential, commercial
           and light industry
     EN50082-1: 1997
         Generic immunity standard, part 1: residential, commercial
           and light industry
     EN55022 – CISPR 22
         Emission requirements for information technology equipment
     EN55024 – CISPR 24
         Immunity requirements for information technology equipment




Capstone Design Project                                                Slide 9
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                     Security Dialer

                                 EMC Test Requirements
   Specific EMC
   Requirements             Test Description          Limits
   CISPR 22 Class B         Radiated Emissions        30dBuV/m at 30 to 230 MHz, 37dBuV/m at 230 to 1 GHz

   CISPR 22 Class B         Conducted Emissions       46 dBuV at 0.5 to 5 MHz, 50 dBuV at 5 to 30 MHz

   MIL-STD-461E, RE101      Magnetic emissions        7 cm for 30 Hz to 100 kHz

   IEC 61000-4-2            ESD immunity              ±6 kV direct, ±8 kV air (minimum)

   IEC 61000-4-3            Radiated immunity         3 V/m for 80 to 2500 MHz , modulated at <10 Hz and 1 kHz

   IEC 61000-4-4            Fast Transient immunity   2 kV power lines, 1 kV I/O lines > 3 meters

   IEC 61000-4-5            Fast Surges immunity      1 kV (differential), 2 kV (common mode)

   IEC 61000-4-6            Conducted immunity        3 V, 150 kHz to 80 MHz, modulated at <10 Hz and 1 kHz

   IEC 61000-4-8            Magnetic immunity         3 A/m at 50/60 Hz

   IEC 61000-4-11           Voltage variations        10 ms, 100 ms, 500 ms, 2 s; 0%, 40% and 70% of input voltage

   IEC 61000-3-2            Harmonics Emissions       Per Standards

   IEC 61000-3-3            Flicker Emissions         Per Standards


Capstone Design Project                                                                                          Slide 10
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                  Security Dialer

                                                                              +5V
     Edwin                           VAC                       Power
                                               VDC             Supply
      Eric                                                                    +12V
                                                                         3
      Igor
                           Phone Line
      Kelly
     Mario
                                                                        Ringback
                             Siren             Dialer
                                                                        Detection

                                      1                    6                        9
                                      0




                          Embedded
                           Ethernet
      Internet                                  Micro-                    Voice
                          Controller                                                     Microphone
                                              controller                Recording
                            /Web
                            Server        8                1                        7




                           Sensors              LCD                      Keypad

                                          2                5                        4


Capstone Design Project                                                                          Slide 11
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                            Security Dialer
                                      Project Gantt Chart
                                       Definition Phase




Capstone Design Project                                                Slide 12
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                             Security Dialer

                                       Project Gantt Chart
                                      Productization Phase




Capstone Design Project                                                 Slide 13
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                    Security Dialer
                                Project Gantt Chart
                          Prototype and Validation Phase




Capstone Design Project                                        Slide 14
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                           Security Dialer

                                       Power Allocation Table

                                                DC Voltage (V)
                                                                           Maximum Current (mA)
    Components                        Minimum     Maximum        Nominal     @ Nominal Voltage
    Siren                                4            18           12              1000
    CO sensor                            4            14            5               15
    Door/Window sensor                   4            14            4               15
    Water sensor                         4            14            4               40
    Keypad                               4            6             5               5
    Ringback Detection                   3            5             5               15
    Web Server                          4.5          5.5            5              300
    Dialer                               2           5.5           2.5              70
    Voice Chip                          4.5          5.5            5               45
    Microcontroller                      4            5             5               40
    Battery Charger                    13.5           15          13.65            300
    LCD                                 4.5           6             5              500
    Total Maximum Current                                                         2345




Capstone Design Project                                                                      Slide 15
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                              Security Dialer

               Power Supply Performance Requirements
   Power Source Inputs
         Temporary 60±3Hz 120+10%/-15%VAC power using standard 3 prong
           detachable 6’7” Nema plug connecting to IEC 320 AC receptacle with
          external 5 x 20 mm fuse holder for consumer accessibility
         Permanent reserve 12VDC 7.2Ahr 86.4Watt-hrs maintenance-free
          rechargeable AGM sealed lead-acid battery (5.5 lbs)


                                                Input Voltage               Output Voltage
 Regulated                                     Tolerance (DC)                Range (DC)
 Output DC        Regulation
 Voltages         Type                Minimum     Maximum       Nominal   Minimum   Maximum   Efficiency

 +18V             Linear                21           30           24       17.2       18.8      >70%

 +13.65V          Linear               16.65         20           18       13.2       14.2      >70%

 +12V             Linear                15           20           18       10.6       12.6      >70%

 +5V              Switching              8          14.4          12       4.75       5.25      >85%



Capstone Design Project                                                                           Slide 16
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                Security Dialer

               Power Supply Performance Requirements
      AC and DC powered modes
          Transistor and diode switching circuit routes power from DC battery if
            AC power source fails
                  Logic signal (VOH: 3 to 5.5VDC, VOL: 0 to 1.5V; Io: 40mA max)
                    sent to microprocessor and web server to display notification on
                    LCD and security web page when operating in DC powered mode
      Interfaces
          Mechanical:
                  AC input line cord
          Electrical:
                  Voltage input from AC source and DC battery source
                  Voltage outputs to system components with 3 pin connector
      Switching frequency > 200kHz
      Voltage Ripple and Noise < 50mV
      Load Regulation < 5% for 30% load change
      Line Regulation < 5% for 15% line voltage change

Capstone Design Project                                                             Slide 17
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                             Security Dialer

                                  Power Supply Block Diagram

                                                                      Microcontroller &
                                                                         Web Server
       60Hz                                                           Logic Signal 40mA
      120VAC

                                                                      VOH=5V, VOL=0.7V


                                                                         Siren 1A



                                                                                                                 Microcontroller      40mA
      24VAC                                                                                                      Dialer               70mA
                                                        Power Mode
   Transformer,                                                                                                  Voice Chip           45mA
                               Voltage                  Detection &                       Switching
    Rectifier &   +18VDC 3A               +12VDC 2.5A                  +12VDC 2.5A                    +5VDC 1A   LCD                 500mA
                              Regulator                  Switching                        Regulator
      Voltage                                                                                                    Web Server          300mA
                                                          Circuit
     Regulator                                                                                                   Keypad                5mA
                                                                                                                 Ringback Detection 15mA
                                                                                                                 Sensors              70mA




                   Voltage
                  Regulator                             DC battery
                   Battery      +13.65VDC 300mA         12V 7.2Ahr
                   Charger




Capstone Design Project                                                                                                            Slide 18
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                              Security Dialer


    Power Supply Standard Requirements             Minimum   Maximum   Allocation
    Operating Temperature Range (°C)                 -10       60
    Operating Humidity Range (Rh) Non-condensing     0%        85%
    Operating Altitude Range (meters)                 0       10,000
    Storage Temperature Range (°C)                   -40       70
    Storage Humidity Range (Rh) Non-condensing        0        95%
    Storage Altitude Range (meters)                   0       13,000
    Reliability MTBF (years)                                    4
    Storage Duration (years)                                    5
    Product Weight (lbs)                                        9         80%
    Product Volume (cm³)                                      16,200      60%
    Operational Drop @ 3 meters (G)                             2
    Vibration and Shock (G)                                    10
    Prototype Cost ($)                                         75         13%
    Production Cost ($)                                        40         13%
    Parts Count                                                30         30%
    Unique Parts Count                                         15         30%
    PC Board Count                                              1
    PC Board Area (cm²)                                        200        30%

Capstone Design Project                                                         Slide 19
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                Security Dialer

               Power Supply EMC, Safety Standards and Disposal

    Electromagnetic Compatibility Standards
          EN 61204-3:2000
                Low voltage power supplies with DC output
          EN 50081-1:1992
                Generic Emission Standard for residential, commercial and light
                 industry
          EN 50082-1:1997
                Generic Immunity Standard for residential, commercial and light
                 industry
    Safety Regulation Standards
          UL 603
                Power supplies for use with burglar-alarm systems
          UL 1236
                Battery chargers for charging engine-starter batteries
    Recycle materials according to city/government regulations

Capstone Design Project                                                            Slide 20
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                               Security Dialer


                                Power Supply Safety Devices


                  UL compliant molded AC line cord and IEC 320 Receptacle
                  External 3A fuse within IEC 320 receptacle to provide
                   over-current protection
                  145V Varistor to provide suppression of transient voltage
                  Properly rated self-resetting fuses used throughout
                   circuitry to provide over-current circuit protection
                  Diodes to protect voltage regulators and DC battery from
                   voltage polarity reversal
                  Transformer provides electrical isolation between AC
                   source and system




Capstone Design Project                                                        Slide 21
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                               Security Dialer

                                  Power Supply Gantt Chart 1 of 2




Capstone Design Project                                                   Slide 22
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                               Security Dialer

                                 Power Supply Gantt Chart 2 of 2




Capstone Design Project                                                   Slide 23
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

                  LCD module Performance requirements

   The LCD module displays the status of the whole system.
   A user will be presented a menu with choices of what action/instruction a
          user wants to take regarding configuration/setup and arming the
          system
   When a certain choice has been made a visual display of the chosen
          option will be shown along with all the information related to the
          choice
   A backlight will light up every time a user pushes a key on the keypad
   A screen will be able to display at least 60 characters
   A module will have a Hitachi 44780 compatible driver chip
   Inputs:
          o Data lines
          o 5V DC(+/-10%) power supply for driver and backlight, 1A Max
   Interfacing through pin header


Capstone Design Project                                                 Slide 24
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                  Security Dialer

                                        20x4 LCD module
                                                                   GND
  LCD Contrast adjust
                                                                   4.5 < Vdd< 6.5 V

                                                                         Vmax =6.5 V
     Backlight      +                                                    Imax = 1mA
      power         -




                           8/4 bit data bus       3 bit control
                                                       line


  Vih min = 2.2 V
  Vih max = Vdd
  Vil min = 0 V
  Vil max = 0.6 V




Capstone Design Project                                                                Slide 25
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                         Security Dialer

                      LCD module Standard requirements

   Operating Temperature:             -10 to 50C
   Operating humidity:               0 to 85% RH, non-condensing
   Storage temperature:              -30 to 70C
   Storage humidity:                 0 to 90% RH non condensing
   Production cost:                  <$10
   Max Proto cost:                   <$60
   Max part count:                   <10
   Power consumption:                <2W
   PCB size:                         8 x 4 x 1 [cm]
   Reliability:                      20000 Hrs
   Disposal:                         According to city/government laws
   Safety requirements:              EN 50081-1:1992, EN 50082-1:1997




Capstone Design Project                                                   Slide 26
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                        Security Dialer

               Microcontroller Performance requirements

   A microcontroller will be from the AVR Atmel family of microcontrollers
   A clock of at least 4MHz will be used for the microcontroller
  The microcontroller will be used to control most of the devices/peripherals
            in the system
   The microcontroller will be used to control the LCD display by responding
            to user input as well as monitoring the status of sensors and
            controlling Ethernet web server
  Inputs:
            o Sensors, keypad, ring back detection, Ethernet control signals
            o 5V DC(+/-20%) power supply, 50mA Max current
   Outputs:
            o Siren signal, Ethernet control line, LCD data and control signals,
            dialer, voice recording
   It will interface to other devices through the chip connection pins


Capstone Design Project                                                   Slide 27
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                            Security Dialer

                        AT90S8515 Microcontroller interface
                                                         LCD module


                                             8/4 bit                    3 bit ctrl
                                              data
                                                                                     8/16 MHz XTAL

                 Voice recording                                                     GND
  2 bits
            Power and Play/REC control
                                                                                     4.5 < Vcc< 6.6 V

           4 bits   Dialer chip control                                         4/2 bits   Parallel keypad interface/UART

           Web server stand by
           and sensor control       4 bits                                      Sensors control            3 bits


                                              1 bit        2 bits




 VIL max = 0.3VCC                                                                                       I I/O max = 40mA
 VIL min = -0.5 V                                                   1 bit                               RI/O max = 120k ohm
 VIH min = 0.6VCC                                                                                       ICC max = 3mA
 VIH max = VCC + 0.5
 VOL max = 0.6 V                    AC status          Ring back    Ring back
 VOH min = 4.2 V                     signal              status       enable


Capstone Design Project                                                                                                Slide 28
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                         Security Dialer

                   Microcontroller Standard requirements

   Operating Temperature:             -10 to 80C
   Operating humidity:               0 to 90% RH, non-condensing
   Storage temperature:              -30 to 85C
   Storage humidity:                 0 to 90% RH non condensing
   Production cost:                  <$2
   Max Proto cost:                   <$12
   Max part count:                   <4
   Power consumption:                <1W
   PCB size:                         N/A (stand alone product)
   Dimensions:                       5 x 1 [cm]
   Reliability:                      10 years
   Disposal:                         According to city/government laws
   Safety requirements:              EN 50081-1:1992, EN 50082-1:1997



Capstone Design Project                                                   Slide 29
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer

                    Microcontroller and LCD Gantt Chart




Capstone Design Project                                      Slide 30
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer

                    Microcontroller and LCD Gantt Chart




Capstone Design Project                                      Slide 31
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                          Security Dialer

                                      Telephone Basics

     •   ON-HOOK Condition:                  •    OFF-HOOK Condition:
           •   48 VDC Between Tip and               •     8 VDC Between Tip and Ring
               Ring                                 •     Tip = -20 VDC
           •   Tip = 0 VDC                          •     Ring = -28 VDC
                                                    •     DC Resistance = 200-300Ω
           •   Ring = -48 VDC
                                                    •     20-50mA Current Flow
           •   No current flow


                                                          DTMF Dial Tone Frequencies

     •   Line Characteristics:
                                                               1,209 Hz     1,336 Hz   1,477 Hz
           •   Ring Signal: 70 – 120 VAC
           •   Bandwidth: 300Hz-3.4kHz
                                                 697 Hz           1            2          3
           •   Min DTMF Tone Duration:
               100ms                             770 Hz           4            5          6

                                                 852 Hz           7            8          9

                                                 941 Hz           *            0          #




Capstone Design Project                                                                       Slide 32
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                      Security Dialer

           Dialer Performance Requirements
    •   Dialer will dial the preset telephone number in the case of an
        emergency. This will be accomplished by placing DTMF (Dual Tone
        Multi-Frequency) signal on the telephone line.
    •   Phone number will be stored in the Micro-controller memory and
        sent to the dialer in form of 4-bit binary signal. This signal will be
        decoded by Dialer circuitry.
    •   Inputs:
         • 4 bit digital signal from micro-controller
             • Vin (low) = 0-0.8 VDC
             • Vin (High) = 3.9-5.5 VDC
         • 5V (±10%) DC, 70mA power supply
         • 1 bit Relay Control Signal
             • Vin (low) = 0-0.8 VDC
             • Vin (High) = 3.9-5.5 VDC
                      • Relay will be used to close/open phone line
    •   Output:
         • DTMF signal (697-1477Hz), 0.5VAC Peak max.
    •   Mechanical interface: RJ11 connector to phone line


Capstone Design Project                                                          Slide 33
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                                 Security Dialer

                   Dialer Performance Requirements –
                              Block Diagram
               5VDC(+/-10%), 70mA
                  Power Supply
                                                                                 Logic


                                                                 16-Bit

                                                                              Dial Code



                                                       Decoder

     4-Bit Dial and Control Signal from uC                                      Dialer
           Logic Low - 0.8VDC Max
          Logic High - 3.9 to 5.5VDC
                                             Control

                                                                                DTMF



                                                                            Telephone Line
                                                                          Interface, Amplifier
                                                                               and Relay
          1-Bit Control Signal from uC for
                  Relay Activation
                                                                                                    694-1477Hz, max 0.5V Peak AC
             Logic Low - 0.8VDC Max
                                                                                                     Audio signal to Telephone Line
            Logic High - 3.9 to 5.5VDC




Capstone Design Project                                                                                                        Slide 34
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                    Security Dialer

                            Dialer Standard Requirements
         Operating Temperature: -10 to 60C
         Operating Humidity: 0 to 85%RH, non-condensing
         Storage Temperature: -40 to 70C
         Storage Humidity: 0 to 95%RH, non-condensing
         Max Part Count: <35
         Max Proto Cost: < $30
         Production Cost: <$20
         Power Consumption: <1/2W
         PCB size: 5 X 10 X 2 (Cm)
         Reliability: 1000Hrs MTBF
         Disposal: According to government regulations
         Safety Requirements: EN 50081-1:1992, EN 50082-1:1997, Part 68
          FCC Rules.




Capstone Design Project                                            Slide 35
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                             Security Dialer

                                      Dialer – Gantt Chart




Capstone Design Project                                                 Slide 36
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                             Security Dialer

                                      Dialer – Gantt Chart




Capstone Design Project                                                 Slide 37
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer

                 Voice Recording/Playback - Performance
                              Requirements
    •   Voice recording will record the user’s message which will be played
        after the telephone communication between the user and system
        has been established.
    •   The message will be recorded when RECORD signal is received from
        the micro-controller.
    •   The message will be played when PLAY signal is received from the
        micro-controller during emergency.
    •   Inputs:
          •   Audio AC signal 300-3400Hz, 50mVP-P Max
          •   Digital control signals RECORD/PLAY and Power Down
                • 0-0.8VDC Low, 3.9-5.5VDC High
          •   5VDC(±10%) power supply, 45mA Max
    •   Output:
          •    300-3400Hz AC signal, 0.5VAC Peak Max
    •   Mechanical Interface: 2-Pin Microphone Connector


Capstone Design Project                                                Slide 38
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                  Security Dialer
                  Voice Recording/Playback - Performance
                               Requirements
                              Block Diagram
          5VDC(+/-10%), 45mA
             Power Supply




           Electret Microphone

                                                                      Amplifier
                                       1 bit   Voice Recording Chip


                Play/ Record                                                             300-1300Hz,
             Low: 0.8VDC max                                                          0.5VAC Peak Max
              High:3.9-5.5 VDC                                                      SIgnal to telephone line
             1 bit signal from uC
              Play : Active high
             Record : Active low



                                               1 bit


                   Power Down
               Low: 0.8VDC max
                High:3.9-5.5 VDC
               1 bit signal from uC
             Power Down: Active high




Capstone Design Project                                                                                        Slide 39
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer

         Voice Recording Standard Requirements
      Operating Temperature: 0 to 60C
      Operating Humidity: 0 to 85%RH, non-condensing
      Storage Temperature: -40 to 70C
      Storage Humidity: 0 to 95%RH, non-condensing
      Max Part Count: <20
      Max Proto Cost: < $40
      Production Cost: <$30
      Power Consumption: <1.25W
      PCB size: 5 X 8 X 2 (Cm)
      Reliability: 1000Hrs MTBF, >50000 Recording Cycles
      Disposal: According to government regulations
      Safety Requirements: EN 50081-1:1992, EN 50082-1:1997, Part 68
       FCC Rules.




Capstone Design Project                                           Slide 40
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                              Security Dialer

                      Voice Recording - Gantt Chart




Capstone Design Project                                  Slide 41
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                              Security Dialer

                      Voice Recording - Gantt Chart




Capstone Design Project                                  Slide 42
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                         Security Dialer

          Embedded Ethernet Controller and Web
           Server – Performance Requirements
    •   OEM Product that will enable two way communication between the
        user and the device.
    •   User will be able to monitor each sensor status over the internet.
        User will also have the ability to turn individual sensors on or off and
        to shut-down/restart the system.
    •   The I/O commands will be transferred through TCP/IP protocol using
        the internet socket interface. The socket interface will be
        implemented with Java applet.
    •   Inputs:
          •    4 one-bit digital inputs
                • 0-0.8 VDC Low, 2-5 VDC High
          •   5VDC (±10%) power supply, 300mA
          •   Broadband Ethernet




Capstone Design Project                                                    Slide 43
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                             Security Dialer

         Embedded Ethernet Controller and Web
          Server – Performance Requirements
    •   Outputs:
          •   4 one-bit digital outputs
                • 2.5 – 5 VDC High
          •   Broadband Ethernet
    •   Mechanical Interface:
          •   RJ45 connector
          •   20 pin , two-row I/O connector, 2.5 mm Pitch




Capstone Design Project                                                 Slide 44
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                                                                Security Dialer

        Embedded Ethernet Controller and Web Server –
                       Block Diagram
                                    4-Bit


      Status signal from sensors:
            Low: 0.8V max                                                    4-Bit
           High: 2 - 5 VDC


                                                                                        Ethernet Controller
                                                                                               And
                                    4-Bit       Interfacing Circuit                        Web Server



        Output Control Signals
         High: 2.5 - 5 VDC
                                                                                                                       Internet
                                                                             4-Bit




        5VDC(+/-10%), 300mA
           Power Supply

                                    Status Signals: CO Sensor status, Door/Window status, Power Failure sensor and
                                                    Water Sensor

                                    Control Signals: Can switch CO, Water and Door/Window Sensor ON/OFF as well
                                                     as place system on Stand-by mode.



Capstone Design Project                                                                                                           Slide 45
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer

          Embedded Ethernet Controller and Web
            Server – Standard Requirements
      Operating Temperature: 0 to 60C
      Operating Humidity: 0 to 85%RH, non-condensing
      Storage Temperature: -40 to 70C
      Storage Humidity: 0 to 95%RH, non-condensing
      Max Part Count: <40
      Max Proto Cost: < $200
      Production Cost: <$70
      Power Consumption: <1.5W
      PCB size: 10 X 6 X 2 (Cm)
      Reliability: 1000Hrs MTBF
      Disposal: According to government regulations
      Safety Requirements: CISPR 22, CISPR 24




Capstone Design Project                                      Slide 46
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                      Security Dialer

         Embedded Ethernet Controller and Web
                Server – Gantt Chart




Capstone Design Project                          Slide 47
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                      Security Dialer

          Embedded Ethernet Controller and Web
                 Server – Gantt Chart




Capstone Design Project                          Slide 48
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                Security Dialer


                                  Ring Back Detection

          Power Supply + 5V             Ringback       Micro controller
                                        Detection

                                                        Phone Line
     Once the alarm is triggered, uC talks to the dialer to dials.
     The ring back detection looks for ring-back/busy/dial tone.
     It connects to the phone line, detects the signals, and will let the uC
      know when the line is answered.

     WHY RING BACK ?
     Ring Back/ Ring Tone is returned to the calling party to indicate that the
     called line has been reached and power ringing has started. In the
     precise tone plan, audible ring back consists of 440 Hz + 480 Hz with a
     2 seconds on/ 4 seconds off temporal pattern.


Capstone Design Project                                                           Slide 49
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                            Security Dialer

                                      Basic Call Progress




Capstone Design Project                                                Slide 50
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                               Security Dialer
                                      Basic Call Progress
        Divided into 6 phases:
        On-hook  Telephone set is in ready condition wait for a caller to
                       pick up its handset.
        Off-hook  Costumer decides to make a phone call and lifts the
                       handset off the switch hook of the telephone set.
        Dialing  Costumer enter a phone number (address) of a tele-
                       phone at another location.
        Switching  Telephone switch translates the tones into a port
                        address that connects to a telephone set of the
                        called party.
        Ringing  CO switch connects to the called line, and sends
                     ringing signal to the phone of the called party.
                     While ringing the called party’s phone, the CO
                     switch sends ring back tone to caller and lets the
                     caller know that ringing is taking place at the called
                     party’s phone.
        Talking  As soon as the called party lifts the handset, an off-hook
                    phase starts again from the opposite site of the network.
                    The local loop is closed on the called party’s side, and
                    current starts to flow to the CO switch. This switch detects
                    current flow and completes the voice connection back to the
                    calling party’s phone.

Capstone Design Project                                                            Slide 51
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                    Security Dialer


              Precise Call Progress Tone Detection
     Parts #: M-982-02P ~ 22-pin plastic DIP
     Audible tones sent from switching systems to calling
       parties to show the status of calls
     Calling parties can identify the success of a call placed by
       what is heard after dialing
     Operation Theory:
       The use of IC techniques allows the M-982-02 to pack the
       five filters for call progress following into a single 22-pin
       DIP. A 3.58 MHz crystal controlled time base guarantees
       accuracy and repeatability




Capstone Design Project                                                Slide 52
 University of Wisconsin – Milwaukee
 EE 318-595 Spring 2004
 Design Team No. 1
                                                             Security Dialer

                                        Block Diagram


 SIGIN
                        Precise Tone Detector                             DET3
XRANGE

                                                                          DET4
                                                             Detector
                                                              Outputs

                                  Clock          Power
                                 Generator      Regulation



                                       PD          Vdd       OE MODE EN




 Capstone Design Project                                                  Slide 53
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                             Security Dialer

                      Precise Call Progress Tone Detector
    M-982-02 contains five signals detectors (DET n) sensitive to the frequencies
     (e.g. Det3-440Hz, Det4-480Hz). In this case, I am going to use 2 frequency
     signals only for Ring Back.

    DET n outputs of the M-982-02P can determine the nature of signals/characters
     present by measuring their duty cycle.

    Duty cycle also refers to as Interruption Rate.

    Tri-state timing to latch the signals:
     OE is active high input  Z is low

    Signal timing:
     SIGIN (analog signal input)
     DET n (active tri-state output)
     STROBE (active high output)

    Power Down Timing:
     PD is high (logic high inhibits internal clock)
     Clock is inactive




Capstone Design Project                                                          Slide 54
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                      Security Dialer




Capstone Design Project                          Slide 55
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                    Security Dialer

                           Input and Output Signals
    The input signals are:
            a) EN, OE, XRANGE, MODE (Vil=5V, Vih=3V)
            b) Pull-up and Pull down currents (PD = 4 to 10uA)
            c) SIGIN pin -> R=80kohm, f=500Hz, V = 5V
            d) CLOCK -> External connect to XIN
                         (Vil=0.2, V Vih=4.8V, Duty Cycle=40-60%)

            The output signals are :
             a) DET n (Vol=0.5V)
             b) STROBE pins (Voh=2.2V)
             c) DET n pins (Ioz=1uA)
            For the logic gates (determine by the frequency below):
              - SILENCE:    MODE(X) DETn(0) STROBE(0) PD(0) OE(1) EN(1)
              - DIAL TONE: MODE(0) DET1(1) STROBE(1) PD(0) OE(1) EN(1) OR
                            MODE(X) DET3(1) STROBE(1) PD(0) OE(1) EN(1)
              - RING BACK: MODE(X) DET3(1) STROBE(1) PD(0) OE(1) EN(1) OR
                             MODE(X) DET4(1) STROBE(1) PD(0) OE(1) EN(1)
              - BUSY TONE: MODE(X) DET4(1) STROBE(1) PD(0) OE(1) EN(1) OR
                             MODE(1) DET2(1) STROBE(1) PD(0) OE(1) EN(1)
            For the frequencies:
              - DIAL TONE: 350Hz + 440Hz
              - RING BACK: 440Hz + 480Hz
              - BUSY TONE: 480Hz + 620Hz




Capstone Design Project                                                        Slide 56
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                   Security Dialer

                            Standards Requirements
        Market
          Max Prototype cost: $25
          Max Production cost: $12
        Mechanical
          Max Total PCB Area: 100 cm^2
        Power
          Single supply: 3 to 5 volt
          Current Drain (Idd): = 15 mA
        Environmental
          Storage Temperature: -40 to 150˚C
          Operating Ambient Temperature: -40 to 85˚C
          Operating Conditions:
           Vdd = 2.7 – 5.5V
           Vref = 1.296V – 1.404V
           Power Supply Noise = 20mVp-p




Capstone Design Project                                       Slide 57
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                     Security Dialer

                                 Standard Requirements


        Safety
          EMC Standard:
               IEC 61000-3-2 (power line harmonics)
               IEC61000-4-2 (Electro Static Discharge
                Immunity)

            Other Standards:
             ISO 9001:2000 Certification
             ISO 9001:1994 Certification


Capstone Design Project                                         Slide 58
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                   Security Dialer

                          Performance Requirements
        Operation Modes
           Power-down mode: 4 to 10 uA
        Electrical Interface
        - Input : Analog (Linear)
        - Outputs: Digital (CMOS compatible), tri-state
        - Dynamic range: 30 dB
        - Signal Detection Freq Range: -11 to +11 Hz
           * Duration (tdd) = 200ms
           * Bridge time (tbb) = 20ms
        - Signal Rejection Freq Range: -66Hz
           * Interval duration (tid) = 160ms
           * Time to output (tio) = 200ms
        Mechanical Interface
           Connector: Phone line (a & b)



Capstone Design Project                                       Slide 59
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                     Security Dialer

   Block Ten - Siren
     The siren block communicates to the user when the security system
     is triggered via audible alert. This block is located inside of the
     system’s enclosure. Sound will travel through louvers in the
     enclosure. Amplifier is a push-pull design. The siren block will be
     activated by supplying power to the siren driver. Driver chip is
     ZSD100.
            Siren signal generation comes from the ZSD100 chip. Capacitors
             are TBD, and are added to vary the siren’s output frequency.
            Push-pull amplification is implemented by six transistors, two
             MS2222 npn transistors, two ZTX690B npn transistors, and two
             ZTX790A pnp transistors. As it stands, additional amplification
             may be necessary.
            Speaker is made by CUI Inc. Part number GF1004H.
                  8 ohm
                  4 inches in diameter
                   Nominal input of 20W



Capstone Design Project                                               Slide 60
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                            Security Dialer

    Block Ten - Siren




                                      Amplification

                                                      Speaker



                                      Siren Driver
  12 Volt on/off signal                 ZSD100




Capstone Design Project                                                Slide 61
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                       Security Dialer

     Siren specifications

       Market - Estimated prototype cost is $20, with a mass production
        cost of $15.
       Power – 12V dc, delivered from the power supply. Minimum
        operating voltage is 4V, maximum is 18V. Total power
        consumption is 12W.
       Mechanical – Maximum product volume is 64 cubic inches.
        Individual shipping container volume of 80 cubic inches.
        Maximum product mass of 1.5 pounds. This circuit will be on the
        master printed circuit board, and occupy 2.25 square inches.
        Supply voltage will be transferred via soldered trace. An
        estimated maximum shock force of 2 G due to the speaker.
        Product will survive 4 drops. Speaker will be enclosed in a plastic
        bag for moisture resistance during shipping.
       Environmental – Range of operational and storage temperature
        is -40 C to 70 C. Relative humidity cannot exceed 90-95% at any
        time. Product can be stored for ten years.

Capstone Design Project                                                 Slide 62
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer

    Siren specifications continued
             Safety –UL464 (Standard for Audible Signal Appliances)
             Manufacturing –The maximum total parts count is 10, 3 of
              which are unique. The maximum parts and materials cost is
              $18, and the maximum assembly and test cost is $2.
             Life cycle – Estimated maximum production lifetime of ten
              years, with a factory and/or field service strategy. Product life is
              estimated to be 15 years, with a three year warranty period.
              Product will be disposed in accordance to local laws and
              regulations.
             Performance Requirements – The power supply turn the siren
              on or off.
             User indicators – The siren is only one of four ways to inform
              the user of a zone violation. User will be provided with an
              estimated 110dB signal from the speaker. The perception
              distance will be 100 feet indoors, under “normal noise”
              conditions in a home.


Capstone Design Project                                                      Slide 63
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                       Security Dialer
    Siren specifications continued

       Operation modes – Unit will have two modes, on and off.
       Electrical Transfer Performances – THD maximum is 10%,
        min power gain of 1. A maximum expected delay between when
        system is triggered, and when the siren is activated, is 2 seconds.
        Negligible EM field is expected outside of the stainless steel
        enclosure.
       Mechanical interfaces – A four inch paper speaker cone is the
        only mechanical interface.




Capstone Design Project                                                  Slide 64
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                          Security Dialer

                                      Siren Gantt Chart




Capstone Design Project                                              Slide 65
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer
    Block four - Keypad

        The keypad is the mechanical user interface for
        the security system. It can be used for arming,
        disarming, system setup, and dialer
        programming. The user may activate and
        deactivate the alarm by entering a security code
        on the keypad. The user also can use the
        keypad to control various functions of the
        system.


         A Grayhill 96 series keypad will be used. This part was
         chosen solely upon its price. The E-Lab EDE1144 keypad
         encoder will be used to interface the keypad to the
         microprocessor. This encoder was chosen to reduce design
         time, part costs, and PLD redundancy.




Capstone Design Project                                             Slide 66
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer

    Block Four - Keypad




                                      8 I/O Signals   EDE1144 4 Parallel Output
                                                      Keypad
                                                      Encoder


                                          5V Supply                    Possible
                                                                     UART Output




Capstone Design Project                                                     Slide 67
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

    Keypad specifications

       Market - Estimated prototype cost is $18, with a mass production
        cost of $15.
       Power – 5V dc, delivered from the power supply. Minimum
        operating voltage is estimated to be 4V, maximum is estimated to
        be 6V.
       Mechanical – Maximum product volume is 8 cubic inches.
        Individual shipping container volume of 10 cubic inches.
        Maximum product mass of 0.25 pounds. This circuit will be on the
        master printed circuit board, and occupy 2 square inches. Supply
        voltage to the keypad will be transferred via pin and socket
        connector. Supply voltage to the logic will be delivered by a
        soldered trace on the circuit board. An estimated maximum shock
        force of 10G. Product will survive 20 drops. Product will be
        enclosed in a plastic bag for moisture resistance during shipping.




Capstone Design Project                                                Slide 68
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer

    Keypad specifications continued

       Environmental – Operating temperature is form -30 to 80
        Celsius.
       Safety – None found
       Manufacturing – Maximum total parts count is 15, with
        five being unique parts. Maximum total parts and material
        cost will be $20, assembly and test cost of $5.
       Life Cycle - Estimated maximum production lifetime of ten
        years, with a factory and/or field service strategy. Product
        life is estimated to be 15 years, with a three year warranty
        period. Product will be disposed in accordance to local laws
        and regulations.
       Performance requirements – The keypad will give the
        user access to all of the system’s functions. Buttons are of
        the pushbutton type, with a minimum of 0.04 inches of
        travel. Operating force is 175 grams, maximum is 215
        grams, and minimum is 135 grams.



Capstone Design Project                                           Slide 69
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

    Keypad specifications continued

       User indicators and displays – Sixteen black buttons are alpha-
        numeric, 0-9, *, #, and A-D. Symbols on keys are white. Each
        key is 0.308 square inches. Viewing distance is approximately
        four feet depending on the usurers vision, in normal room
        lighting.
       Operation modes – Power modes are on, and off.
       Electrical interfaces – Keypad will be connected to the driver
        with an 8 pin connector. Logic will be soldered to the main board
        and employ traces to carry the signals.
       Mechanical interfaces – Connector from keypad to main board
        is a single row, 8 connector female housing. Wires from the
        connector will be soldered onto the main board.




Capstone Design Project                                               Slide 70
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                           Security Dialer
                                      Keypad Gantt Chart




Capstone Design Project                                               Slide 71
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                  Security Dialer
    Block Two - Sensors



        There are three sensors in the system. These sensors are
        what trigger the alarm. Carbon monoxide, water level, and
        door / window opening sensors are used to keep the user
        informed of unfavorable circumstances. The production
        model will have will have the capability of using more than
        three sensors. Only three are used in this case to keep the
        prototype recourses to a minimum.




Capstone Design Project                                          Slide 72
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                                       Security Dialer

    Gas Sensor




                                                      12 Volt Supply

                  Carbon Monoxide Sensor
                                                         Ground
                                      Single
                                      Line
                                      Analog Output                           Single
                                                                  Logic       Digital
                                                                               Out

           Chances are likely that the proposed idea of a carbon
           monoxide sensor will not be used due to availability. The
           replacement sensor is yet to be determined.
Capstone Design Project                                                                 Slide 73
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                          Security Dialer

    Gas sensor specifications

       Market – Maximum product
        cost of $40, $45 maximum
        prototype cost.
       Power – 12V dc, delivered
        from the power supply to the
        sensor. Minimum operating
        voltage is estimated to be
        10V, maximum is estimated
        to be 14V. Power is supplied
        to the sensor through a Molex
        connector. Power for the
        logic following the sensor will
        be 5V dc. Maximum of 6V,
        minimum of 4V.




Capstone Design Project                              Slide 74
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                        Security Dialer

    Gas sensor specifications continued
            Mechanical – Maximum product volume is six cubic inches,
             shipping volume is ten cubic inches. Maximum product mass is
             0.25 pounds. Sensor has four parts, all of them are unique. The
             maximum shock force is 100G, 5 impacts. Product will be
             wrapped in a plastic bag for moisture protection.
            Environmental - Operating temperature range is -10 to 55
             Celsius. Storage temperature ranges from -30 to 85 Celsius.
             Product does not provide a humidity range for storage or
             operation.
            Safety – UL 2034 (Standard for Single and Multiple Station
             Carbon Monoxide Alarms), UL 634 (Standard for Connectors and
             Switches for Use with Burglar-Alarm Systems)
            Manufacturing – Total parts count of five, all unique parts.
             Parts cost is estimated at $38, assembly cost of $2.
            Life cycle – Estimated production lifetime of five years. Product
             has a field or factory service recommendation due to calibration.
             Product life of 2-3 years. Product will be disposed in accordance
             to local laws and regulations.
Capstone Design Project                                                  Slide 75
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

    Gas sensor specifications continued

       Performance requirements – The sensor’s input will be a port
        into open air.
       Operation modes – Sensor has two modes, on and off.
        Sensor has two functional modes, “contaminated air”, and
        “clean air”.
       Electrical interfaces – Sensor produces an analog output.
        Voltage level is monitored by a yet to be determined logic
        circuit.
       Mechanical interfaces – This sensor requires three contacts.
        Therefore a 3 position         female connector is used to link
        it to the system.




Capstone Design Project                                               Slide 76
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

    Water sensor specifications

       Market – Maximum production cost is $10, maximum prototype
        cost is $15.
       Power - 12V dc, delivered from the power supply. Minimum
        operating voltage is estimated to be 4V, maximum is estimated to
        be 14V.
       Mechanical - Maximum product volume is six cubic inches,
        shipping volume is ten cubic inches. Maximum product mass is
        0.25 pounds. Sensor has four parts, all of them are unique. The
        maximum shock force is 100G, 10+ impacts. Moisture resistance
        packaging is not needed.
       Environmental – Operating and storage temperature is form       -
        30 to 80 Celsius. Product will operate in all humidity.
       Safety –UL 634 (Standard for Connectors and Switches for Use
        with Burglar-Alarm Systems)
       Manufacturing - 8 parts maximum, 6 parts are unique.
        Maximum parts cost is $7, with a $2 assembly and test cost.




Capstone Design Project                                                Slide 77
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                      Security Dialer

    Water sensor specifications continued

       Life cycle – Estimated Maximum production lifetime of 15
        years. Replacement only, no service. Product life of 10 years.
        Product will be disposed in accordance to local laws and
        regulations
       Operation modes – Sensor has two modes on, and off. The
        functional modes are “water present”, and “no water present”.
       Electrical Interfaces – When water is detected, the sensor will
        send a 5V dc signal to the system.
       Mechanical interfaces – This sensor requires two contacts.
        Therefore a 2 position         female connector is used to link
        it to the system.




Capstone Design Project                                               Slide 78
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                            Security Dialer
    Water Sensor




                          Sensing
                          Element          12 Volt Supply



                                                                    Single
                                      Dc output             Logic   Digital
                                                                    Output




Capstone Design Project                                                       Slide 79
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                     Security Dialer

    Door / Window sensor

       Market – Maximum production cost is $8, maximum prototype
        cost is $15.
       Power - 12V dc, delivered from the power supply. Minimum
        operating voltage is estimated to be 4V, maximum is estimated
        to be 14V.
       Mechanical - Maximum product volume is 1 cubic inch,
        shipping volume is 1.2 cubic inches. Maximum product mass is
        0.1 pounds. Sensor has 3 parts. The maximum shock force is
        100G, 10+ impacts. Product will be wrapped in a plastic bag
        for resistance to humidity.
       Environmental – Operating and storage temperature is form -
        30 to 65 Celsius. Humidity operation rating is unknown.
       Safety – UL 634 (Standard for Connectors and Switches for
        Use with Burglar-Alarm Systems), UL 498 (Standard for
        Attachment Plugs and Receptacles),
       Manufacturing - 2 parts maximum, both parts are unique.
        Maximum parts cost is $7, with a $1 assembly and test cost.




Capstone Design Project                                                 Slide 80
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                     Security Dialer

    Door / Window sensor continued

        Life cycle – Estimated Maximum production lifetime of 15
         years. Replacement only, no service. Product life of 10 years.
         Product will be disposed in accordance to local laws and
         regulations
        Performance requirements – Momentary pushbutton switch
         used to sense entry.
        Operation modes - Sensor has two modes, on and off. Sensor
         has two functional modes, “closed window / door”, and “open
         window / door”.
        Electrical interfaces - Powered pushbutton will return 12V dc
         to the microprocessor in the event of intrusion.




Capstone Design Project                                               Slide 81
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                    Security Dialer
    Door / Window sensor




                                                5 Volts DC
                                      Sensing
                                      Element



                                       DC
                                      Output




Capstone Design Project                                        Slide 82
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                        Security Dialer

    Door / Window sensor continued


         Mechanical interfaces – The sensor will be mounted near the
          pane of a window or door. There will need to be a small angled
          bracket attached to the window or door to make precise contact
          with the switch only when the door/ window is closed. The
          switch itself will need to be mounted to the pane by a separate
          right angle bracket. This sensor requires two contacts.
          Therefore a 2 position          female connector is used to link
          it to the system.




Capstone Design Project                                                  Slide 83
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                   Security Dialer

    Door / Window sensor illustrated

       Installation example for a door – Required hardware is one
        angled bracket and one flathead wood screw. Shown below are
        both an “open door” and a “closed door” situation.




Capstone Design Project                                               Slide 84
University of Wisconsin – Milwaukee
EE 318-595 Spring 2004
Design Team No. 1
                                                            Security Dialer

                                      Sensors Gantt Chart




Capstone Design Project                                                Slide 85

								
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