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04-03-2011, 12:57 PM
Post: #1
TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
Presented By:
R.VAMSHIKRISHNA
N.CHAITANYA
S.PRADEEP


.ppt  final.ppt (Size: 3.26 MB / Downloads: 965)
TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
INTRODUCTION

“ Giving high priority for the emergency vehicles in the traffic so that there is no wastage of time to cross the junction”
This project is mainly based on the transmission of the RFsignal between the emergency vehicle and the traffic controller
Components used
MICRO CONTROLLER
RF TRANSMITTER, RF RECEIVER
POWER SUPPLY 5V
DECODER, ENCODER
LED
Microprocessor Vs Microcontroller
Microprocessor:
• CPU is stand-alone, RAM, ROM, I/O, timer are separate
• Designer can decide on the amount of ROM, RAM, and I/O ports
• expensive
• versatility general-purpose
Microcontroller:
• CPU, RAM, ROM, I/O and timer are all on a single chip
• fix amount of on-chip RAM, ROM, I/O ports
• for applications in which cost, power and space are critical
• single-purpose
FEATURES
8K bytes in the system Programmable flash memory
Fully static operation 0hz to 24Mhz
256*8 bit internal RAM
RF TRANSMITTER
Modulation ASK
Operating voltage: 2-12v.
RF RECEIVER
• Modulation ASK
• SUPPLY VOLTAGE :3.3-6VDC
• OUTPUT: digital and linear
07-05-2011, 02:24 PM
Post: #2
RE: TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
ABSTRACT
Title: TRAFFIC LIGHT PRIORITY CONTROL FOR EMERGENCY VEHICLES
Aim:

The aim of the project is to build the traffic light priority control for emergency vehicle.
Scope:
We have a very high traffic in main cities due to waste increasing of automobiles. When emergency vehicles are not having a possibility to go through this heavy traffic. Due to lagging of this time so many losses are occurred. So, to overcome this problem we need this project.
In this project we place a RF receiver for each one of the traffic lights. RF is having the frequency of 434 MHz for transmission and reception. The emergency vehicle having the RF transmitter, which is continuously emitting the signals i.e. in ON state. When the emergency vehicle is reached nearer to the junction means near to the traffic lights, the signals are cached by the receiver presented at the traffic light. Normally in heavy traffic conditions suppose it gives the priority of 5 seconds for each direction to the junction. But, when this signal is reached, at that direction only it will give the priority of 10 seconds. Thus the higher priority is given to the emergency vehicles. The microcontroller is used to control all these operations.
By using this project we can save the time and make the actions of the emergency vehicles are to be fast. We use this system for emergency vehicles like fire engine, ambulance etc.
SOFTWARE TOOLS USED:
1) Keil Compiler
2) Express PCB/ORCAD
HARDWARE TOOLS:
1) Micro controller.
2) RF transmitter, RF Receiver.
3) Power Supply 5V.
4) Decoder, Encoder.
5) LCD.
1. SCHEMATIC DIAGRAM
2. CIRCUIT DESCRIPTION

We have a very high traffic in main cities due to waste increasing of automobiles. When emergency vehicles are not having a possibility to go through this heavy traffic. Due to lagging of this time so many losses are occurred. So, to overcome this problem we need this project.
In this project we place a RF receiver for each one of the traffic lights. RF is having the frequency of 434 MHz for transmission and reception. The emergency vehicle having the RF transmitter, which is continuously emitting the signals i.e. in ON state. When the emergency vehicle is reached nearer to the junction means near to the traffic lights, the signals are cached by the receiver presented at the traffic light. Normally in heavy traffic conditions suppose it gives the priority of 5 seconds for each direction to the junction. But, when this signal is reached, at that direction only it will give the priority of 10 seconds. Thus the higher priority is given to the emergency vehicles. The microcontroller is used to control all these operations
By using this project we can save the time and make the actions of the emergency vehicles are to be fast. We use this system for emergency vehicles like fire engine, ambulance etc.
3. INTRODUCTION TO EMBEDDED SYSTEMS
Embedded systems are electronic devices that incorporate microprocessors with in their implementations. The main purposes of the microprocessors are to simplify the system design and provide flexibility. Having a microprocessor in the device helps in removing the bugs, making modifications, or adding new features are only matter of rewriting the software that controls the device. Or in other words embedded computer systems are electronic systems that include a microcomputer to perform a specific dedicated application. The computer is hidden inside these products. Embedded systems are ubiquitous. Every week millions of tiny computer chips come pouring out of factories finding their way into our everyday products.
Embedded systems are self-contained programs that are embedded within a piece of hardware. Whereas a regular computer has many different applications and software that can be applied to various tasks, embedded systems are usually set to a specific task that cannot be altered without physically manipulating the circuitry. Another way to think of an embedded system is as a computer system that is created with optimal efficiency, thereby allowing it to complete specific functions as quickly as possible.
Embedded systems designers usually have a significant grasp of hardware technologies. They use specific programming languages and software to develop embedded systems and manipulate the equipment. When searching online, companies offer embedded systems development kits and other embedded systems tools for use by engineers and businesses.
Embedded systems technologies are usually fairly expensive due to the necessary development time and built in efficiencies, but they are also highly valued in specific industries. Smaller businesses may wish to hire a consultant to determine what sort of embedded systems will add value to their organization.
CHARACTERISTICS:
Two major areas of differences are cost and power consumption. Since many embedded systems are produced in tens of thousands to millions of units range, reducing cost is a major concern. Embedded systems often use a (relatively) slow processor and small memory size to minimize costs.
The slowness is not just clock speed. The whole architecture of the computer is often intentionally simplified to lower costs. For example, embedded systems often use peripherals controlled by synchronous serial interfaces, which are ten to hundreds of times slower than comparable peripherals used in PCs. Programs on an embedded system often run with real-time constraints with limited hardware resources: often there is no disk drive, operating system, keyboard or screen. A flash drive may replace rotating media, and a small keypad and LCD screen may be used instead of a PC's keyboard and screen.
Firmware is the name for software that is embedded in hardware devices, e.g. in one or more ROM/Flash memory IC chips. Embedded systems are routinely expected to maintain 100% reliability while running continuously for long periods, sometimes measured in years. Firmware is usually developed and tested too much harsher requirements than is general-purpose software, which can usually be easily restarted if a problem occurs.
PLATFORM:
There are many different CPU architectures used in embedded designs. This in contrast to the desktop computer market which is limited to just a few competing architectures mainly the Intel/AMD x86 and the Apple/Motorola/IBM Power PC’s which are used in the Apple Macintosh. One common configuration for embedded systems is the system on a chip, an application-specific integrated circuit, for which the CPU was purchased as intellectual property to add to the IC's design.
TOOLS:
Like a typical computer programmer, embedded system designers use compilers, assemblers and debuggers to develop an embedded system. Those software tools can come from several sources:
Software companies that specialize in the embedded market Ported from the GNU software development tools. Sometimes, development tools for a personal computer can be used if the embedded processor is a close relative to a common PC processor. Embedded system designers also use a few software tools rarely used by typical computer programmers. Some designers keep a utility program to turn data files into code, so that they can include any kind of data in a program. Most designers also have utility programs to add a checksum or CRC to a program, so it can check its program data before executing it.
OPERATING SYSTEM:
They often have no operating system, or a specialized embedded operating system (often a real-time operating system), or the programmer is assigned to port one of these to the new system.


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.doc  TRAFFIC LIGHT PRIORITY CONTROL FOR EMERGENCY VEHICLES.doc (Size: 777.5 KB / Downloads: 466)
31-07-2011, 11:42 PM
Post: #3
RE: TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
pls give details about this
01-08-2011, 09:16 AM
Post: #4
RE: TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
To get more information about the topic "TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE " please refer the link below

http://www.seminarprojects.com/Thread-tr...8#pid53018
26-01-2012, 12:01 PM
Post: #5
RE: TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
plz give more info on TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
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Marked Categories : emergencyvehicle1 com, priority control, traffic light prioritycontrol for emergency vehicle, emergency vehicle, use of micro controller in traffic light priority, traffic light priority control for emergency vehicles, traffic signal light control for emergency vehicles components, scope of emergency vehicle reaching, traffic light controller for emergency vehicles, stop light emergency vehicle system, proiority for emergency vachile in trafic signal, keil coding for traffic light priority control, priority for emergency vehicles in traffic signals, seminar on automatic camera on traffic signals, vehcle trafic light, seminar titles in lighting control,

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