Embedded System Project Abstracts_ IEEE 2012 - A Passive Radio-Frequency pH-Sensing Tag for Wireless Food-Quality Monitoring

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Embedded System Project Abstracts_ IEEE 2012 - A Passive Radio-Frequency pH-Sensing Tag for Wireless Food-Quality Monitoring Powered By Docstoc
					NCCT
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                                         ncctchennai@gmail.com
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      Embedded Systems Projects, IEEE 2012 Abstracts

 A PASSIVE RADIO-FREQUENCY PH-SENSING TAG FOR
       WIRELESS FOOD-QUALITY MONITORING
We present a new method, suitable for food quality management by
wirelessly monitoring pH level changes in food with a flexible pH
sensor embedded in a batteryless radio-frequency (RF) transponder.
The wireless sensor tag includes a flexible pH sensor based on
miniature iridium oxide (IrOx) and silver chloride (AgCl) sensing
electrodes integrated on a deformable substrate, and batteryless
wireless communication circuitry.
The sensor tag and reader system is designed to achieve convenient,
long-term, and on-demand wireless in situ monitoring of food quality,
especially for large-quantity applications and continuous monitoring
from place of production to retail stores. Low-cost IrOx sol-gel
fabrication process was applied on polymeric substrates to form the
flexible sensing films, and a sensitivity of -49.7 mV/pH was achieved.
Inducting coupling provides electromagnetic energy from the reader to
drive the transponder circuits that retransmit the sensor-data
modulated signals back to the reader.
The electrochemical potential created by the IrOx/AgCl sensing
electrodes is converted to a modulated frequency and the system
achieves a sensitivity of 633 Hz/pH. The wireless pH sensing syst em
was tested for in situ monitoring of the spoilage processes in fish
meats continuously for over 18 h. The feasibility of wirelessly
monitoring pH values in fish meats that could be used to identify
spoilage remotely has been demonstrated.



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     Embedded Systems Projects, IEEE 2012 Abstracts
Abstract of the Project


Proposed System Advantages


Architecture Diagram


Block Diagram



Explanation of Block Diagram



Components usage Details



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  NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road,
                 Nungambakkam, Chennai – 600034.
        Near Ganpat Hotel, Above IOB, Next to ICICI Ba nk

      Projects in Embedded Systems * Embedded
 Microcontrollers, VLSI * DSP * Matlab * Power Electronics *
                Java * .NET * Android * NS2
NCCT
                                                               www.ncct.in
                                                         ncctchennai@gmail.com
Smarter way to do your Projects                        044-28235816, 98411 93224

        Embedded Systems Projects, IEEE 2012 Abstracts
EMBEDDED HARDWARE REQUIREMENTS

   Microcontroller, Atmel 89c51 / 52
   Embedded Active components
   Embedded Passive components
   Electromechanical components
   Electrical components


SOFTWARE REQUIREMENTS
   Assembly Language
   Embedded C
   KEIL Compiler


HARDWARE REQUIREMENTS

                   If PC is used, for Independent Kits, this will not applicable

System         : Pentium Dual Core Processor + Board
RAM            : 1 GB
Hard Disk      : 80 GB
Monitor        : 17” Color Monitor
Mouse          : Logitech Mouse
Keyboard       : Multimedia Keyboard


SOFTWARE REQUIREMENTS

Operating System         :    Windows XP
Front End                :    Visual Basic / Java
Database                 :    Access

  NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road,
                 Nungambakkam, Chennai – 600034.
        Near Ganpat Hotel, Above IOB, Next to ICICI Ba nk

      Projects in Embedded Systems * Embedded
 Microcontrollers, VLSI * DSP * Matlab * Power Electronics *
                Java * .NET * Android * NS2
NCCT
                                                             www.ncct.in
                                                       ncctchennai@gmail.com
Smarter way to do your Projects                      044-28235816, 98411 93224

        Embedded Systems Projects, IEEE 2012 Abstracts
ABOUT EMBEDDED SYSTEMS
An embedded system is a computer system designed for specific control functions within a
larger system, often with real-time computing constraints. It is embedded as part of a complete
device often including hardware and mechanical parts. By contrast, a general -purpose computer,
such as a personal computer (PC), is designed to be flexible and to meet a wide range of end -
user needs. Embedded systems control many devices in common use today
Embedded systems contain processing cores that are typically either microcontrollers or digital
signal processors. The key characteristic, however, is being dedicated to handle a particular
task. Since the embedded system is dedicated to specific tasks, design engineers can optimize
it to reduce the size and cost of the product and increase the reliability and performance.
Embedded systems are designed to do some specific task, rather than be a general -purpose
computer for multiple tasks. Some also have real -time performance constraints that must be
met, for reasons such as safety and usability
Embedded systems are not always standalone devices. Many embedded systems consist of
small, computerized parts within a larger device that serves a more general purpose. The
program instructions written for embedded systems are referred to as firmware, and are stored
in read-only memory or Flash memory chips. They run with limited computer hardware
resources: little memory, small or non-existent keyboard or screen.




PERIPHERALS
      Embedded Systems talk with the outside world via peripherals, such as:
 Serial Communication Interfaces (SCI): RS-232, RS-422, RS-485 etc.
 Synchronous Serial Communication Interface:        I2C,   SPI,   SSC   and   ESSI   (Enhanced
 Synchronous Serial Interface)
 Universal Serial Bus (USB)
 Multi Media Cards (SD Cards, Compact Flash etc.)
 Networks: Ethernet, LonWorks, etc.
 Fieldbuses: CAN-Bus, LIN-Bus, PROFIBUS, etc.
 Timers: PLL(s), Capture/Compare and Time Processing Units
 Discrete IO: aka General Purpose Input/Output (GPIO)
 Analog to Digital/Digital to Analog (ADC/DAC)
 Debugging: JTAG, ISP, ICSP, BDM Port, BITP, and DP9 ports.




  NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road,
                 Nungambakkam, Chennai – 600034.
        Near Ganpat Hotel, Above IOB, Next to ICICI Ba nk

      Projects in Embedded Systems * Embedded
 Microcontrollers, VLSI * DSP * Matlab * Power Electronics *
                Java * .NET * Android * NS2
NCCT
                                                              www.ncct.in
                                                        ncctchennai@gmail.com
Smarter way to do your Projects                       044-28235816, 98411 93224

        Embedded Systems Projects, IEEE 2012 Abstracts
MICROCONTROLLERS
A microcontroller (sometimes abbreviated µC, uC or MCU) is a small computer on a single
integrated circuit containing a processor core, memory, and programmable input/output
peripherals. Program memory in the form of NOR flash or OTP ROM is also often included on
chip, as well as a typically small amount of RAM.
Microcontrollers are designed for embedded applications, in contrast to the microprocessors
used in personal computers or other general purpose applications.
Microcontrollers are used in automatically controlled products and devices, such as automobile
engine control systems, implantable medical devices, remote controls, office machines,
appliances, power tools, toys and other embedded systems. By reducing the size and cost
compared to a design that uses a separate microprocessor, memory, and input/output devices,
microcontrollers make it economical to digitally control even more devices and processes




ATMEL 89C51 MICROCONTROLLERS
The Atmel AT89 series is an Intel-8051-compatible family of 8 bit microcontrollers (µCs)
manufactured by the Atmel Corporation. Based on the Intel 8051 core, the AT89 series remains
very popular as general purpose microcontrollers, due to their industry standard instruction set,
and low unit cost. This allows a great amount of legacy code to be reused without modification in
new applications
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4Kbytes of
Flash programmable and erasable read only memory (PEROM). The device is manufactured
using Atmel’s high-density nonvolatile memory technology and is compatible with the industry -
standard MCS-51 instruction set and pin out.
The on-chip Flash allows the program memory to be reprogrammed in -system or by a
conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on
a monolithic chip, the Atmel AT89C51 is a powerful microcomputer, which provides a highly -
flexible and cost-effective applications solution to many embedded control




  NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road,
                 Nungambakkam, Chennai – 600034.
        Near Ganpat Hotel, Above IOB, Next to ICICI Ba nk

      Projects in Embedded Systems * Embedded
 Microcontrollers, VLSI * DSP * Matlab * Power Electronics *
                Java * .NET * Android * NS2

				
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