Examples of Context Level Diagrams - PowerPoint

Document Sample
Examples of Context Level Diagrams - PowerPoint Powered By Docstoc
					Examples of Context Level
       Diagrams




Courtesy of the Fall 2004 ECE-163 class.
               Context Level
         Signal Flow Block Diagram

                        Increased Incoming
                                                             Audio Signal
                         Voice Signal
                                                             Control Signal

                        Outgoing Voice Signal
                        with Ambient Noise

                                                                    Line Pair to
                                                                    Phone
                                     Line Pair to                   Company
                                     Phone Base



         Signal Flow Legend for                             Signal Flow Legend for
          Line to Phone Base                                Line to Phone Company
        Signal               Direction                      Signal                 Direction
Outgoing Voice                                      Decreased Outgoing Voice
Signal with Ambient Noise                           Signal with Ambient Noise
Increased Incoming                                  Unprocessed Incoming
Voice Signal                                        Voice Signal
Telephone Control                                   Telephone Control
Signals                                             Signals
Context Level Block Diagram
   User’s hand
   movement




                               Pointing device

                 Hand Device                     Base station




                                                         Cursor
                                                         movement
          Context Level Block Diagram
                 Wireless Analog                Access
                 Communication                 Commands
Pet w/ Collar                                                 Pet Door
Approaches                                                    Opens &
    Door                                                       Closes
                              Access Control
                                Hardware
                                                             Pet Door
  Animal
                                                             Remains
 w/o Collar
                                                               Shut
    No Communication                             No Command
                                                 Signals

  User                          Human User                   Information
  Input                          Interface
                Button                             data
                                                               Output*
                presses        (LCD/Buttons)     * - Time of last access and
                                                 whether a pet is currently
                                                 inside or outside.
   User Input Cough




                                         Recorder


                                                          Parameters and Graphs
                                                              Produced From
                                                            Time-Domain and
                                                        Frequency Domain Analysis

                                          PC –
                                    Software Program


                                                            Results from
                                                       Cluster and Discriminant
                                                               Analysis
          “Control” Coughs
(Serves as Basis for Cluster Analysis)
MIDI Drum Signal
To be Humanized



                   MIDI Drum
                   Humanizer                `

                                Other MIDI Device



                    User Sets
                   Parameters
Context Level Block Diagram
                     Context Level Design
                                             User Input (button press)




                               Flash and Light Sensor          Temperature
           Surface




                                                              Display (output)
                       Light




Phosphor
                  Context-Level Diagram

                                              3. Sensor Triggered +
                                              Timestamp



                                       Tx                             Rx

1. Motion Event
                           Node                                        Computer Interface




                  2. IR LEDs blinking in                              4. Node triggering and
                  unique pattern indicative                           intruder path information
                  of order                                            displayed on GUI
 User input
                Touch                            Analog out to
                Screen                           speaker
                Display
 User input               Digitally Controlled
                              3 Channel
Audio input A               Audio Mixer          USB out to PC
Audio input B
Audio input C