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7/29/2019 Remote Accident Report System for High Ways Using Rf
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Remote accident reportsystem for highways using RF
PROJECT BASED ON EMNEDDEDSYSTEMS
DEPARTMENT OF ELECTRONIC AND COMMUNICATION
ENGINEERING, ANURAG COLLEGE OF ENGINEERING
PRESENTATIONBY
P. KRISHNA CHAITANYA
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INTRODUCTION
The aim of this project is to monitor the accidents
which occur on the highways using RF technology.The information of occurrence of the accident will be
transmitted to the control section wirelessly using RF
communication.
In the vehicle section, an accident switch is placed,
whenever the accident occurs, the information is
transmitted to the control section.
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EMBEDDED SYSTEMS
An embedded system is a computer system designed for
specific control functions within a larger system, often with real-
time computing constraints.
Embedded system contain processing core that are typically
either microcontroller or digital signal processors (DSP).
Embedded systems are designed to do some specific task
rather than be a general-purpose computer for multiple tasks.
An embedded system is not always a separate block - very
often it is physically built-in to the device it is controlling.
The software written for embedded systems is often called
firmware, and is stored in read-only memory or flash convector
chips rather than a disk drive.
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BLOCK DIAGRAM(VEHICLE SECTION)
MICRO
CONTROLLER
CONTROLLER
AT89S52
Power supply HT 12E Encoder
Accident
detection
circuit
RF TX
H-Bridge
MOTOR
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BLOCK DIAGRAM(MONITOR SECTION)
MICRO
CONTROLLE
R
AT89S52
POWER
SUPPLY
DECODER
RF RECEIVER
LCD
BUZZER
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SCHEMATIC VIEW OF TRANSMITER
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SCHEMATIC VIEW OF RECEIVER
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DESCRIPTION OFAT89S52
8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer,
two data pointers, three 16-bit timer/counters, a six-vector two-level
interrupt architecture, a full duplex serial port, on-chip oscillator, and
clock circuitry.
In addition, the AT89S52 is designed with static logic for operation
down to zero frequency and supports two software selectable power
saving modes.
The Idle Mode stops the CPU while allowing the RAM,
timer/counters, serial port, and interrupt system to continue functioning.
The Power-down mode saves the RAM contents but freezes the
oscillator, disabling all other chip functions until the next interrupt or
hardware reset.
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H BRIDE
An H bridge is an electronic circuit that enables a voltage to be appliedacross a load in either direction. These circuits are often usedin robotics and other applications to allow DC motors to run forwardsand backwards. H bridges are available as integrated circuits, or can bebuilt from discrete components
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The power supplies are designed to convert high voltage AC mains
electricity to a suitable low voltage supply for electronic circuits and other
devices. A RPS (Regulated Power Supply) is the Power Supply with
Rectification, Filtering and Regulation being done on the AC mains to get a
Regulated power supply for Microcontroller and for the other devices beinginterfaced to it.
POWER SUPPLY SECTION
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RF MODULE (TRANSMITTER & RECEIVER)
The RF module, as the name suggests, operates at Radio Frequency. Thecorresponding frequency range varies between 30 kHz & 300 GHz.This RF module comprises of an RF Transmitter and an RF Receiver.
The transmitter/receiver (Tx/Rx) pair operates at a frequency of 434
MHz .
An RF transmitter receives serial data and transmits it wirelessly through
RF through its antenna connected at pin4.
The transmission occurs at the rate of 1Kbps - 10Kbps.
The transmitted data is received by an RF receiver operating at the same
frequency as that of the transmitter.
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LCD DISPLAY
A liquid crystal display (LCD) is a flat panel display, electronic visualdisplay, or video display that uses the light modulating propertiesof liquid crystals(LCs). LCs do not emit light directly.
LCDs are available to display arbitrary images (as in a general-purpose
computer display) or fixed images which can be displayed or hidden, suchas preset words, digits, and 7-segment displays as in a digital clock. Theyuse the same basic technology, except that arbitrary images are made upof a large number of small pixels, while other displays have largerelements.
http://en.wikipedia.org/wiki/Flat_panel_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Video_displayhttp://en.wikipedia.org/wiki/Liquid_Crystalshttp://en.wikipedia.org/wiki/7-segmenthttp://en.wikipedia.org/wiki/Digital_clockhttp://en.wikipedia.org/wiki/Pixelhttp://en.wikipedia.org/wiki/Pixelhttp://en.wikipedia.org/wiki/Digital_clockhttp://en.wikipedia.org/wiki/Digital_clockhttp://en.wikipedia.org/wiki/Digital_clockhttp://en.wikipedia.org/wiki/7-segmenthttp://en.wikipedia.org/wiki/7-segmenthttp://en.wikipedia.org/wiki/7-segmenthttp://en.wikipedia.org/wiki/Liquid_Crystalshttp://en.wikipedia.org/wiki/Liquid_Crystalshttp://en.wikipedia.org/wiki/Liquid_Crystalshttp://en.wikipedia.org/wiki/Video_displayhttp://en.wikipedia.org/wiki/Video_displayhttp://en.wikipedia.org/wiki/Video_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Electronic_visual_displayhttp://en.wikipedia.org/wiki/Flat_panel_displayhttp://en.wikipedia.org/wiki/Flat_panel_displayhttp://en.wikipedia.org/wiki/Flat_panel_displayhttp://en.wikipedia.org/wiki/Flat_panel_displayhttp://en.wikipedia.org/wiki/Flat_panel_display7/29/2019 Remote Accident Report System for High Ways Using Rf
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It is possible to create the source files in a text editor such
as Notepad, run the Compiler on each C source file,
specifying a list of controls, run the Assembler on eachAssembler source file, specifying another list of controls, run
either the Library Manager or Linker (again specifying a list
of controls) and finally running the Object-HEX Converter
to convert the Linker output file to an Intel Hex File.
Once that has been completed the Hex File can be
downloaded to the target hardware and debugged.
KEIL Greatly simplifies the process of creating and testing
an embedded application.
SOFTWARE DESCRIPTION
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QUERIES
??
?
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