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cooldhiru0007
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23-12-2010, 07:30 PM


PHS BASED ONLINE VEHICLE TRACKING SYSTEM
Introduction
The Automation for Vehicles is the current trend, which transforms the merely conveyer to well-furnished moving home like feeling. As the country is opened to globalization, people’s income is rising. And the traveling is now become essential part of the life. So, governments prefer not only to raise their road’s quality but also the width of it. As a result, four track National Highway roads are flowing throughout the country like blood veins. This leads to more number of vehicles on the road, and people prefer to travel with their own vehicle, rather than any public transportation.

This increase in number of vehicles on-road brings not only revenue but also headache to Transport Office, Police Department, and others too. It is hard to keep & maintain the details of the each vehicle, which is running on the road. This inefficiency sets some evil things to work on road. Such as, in case of hit-and-run or carrying illegal goods over inter-state cross boarder or road-robbery cases, police may not trace the culprits very easily, as the vehicle details are not monitored continuously. Suppose the Cargo Company wants to send a message to its On-Road vehicle to stop delivering the goods to customer, how to do it? Police Men wants to stop the vehicle, which is smuggling some illegal things, with carrying goods, how they do it? City Transports wants to track each buses details such as departure & arrival time on bus terminal, number of schedules it undergone in single-day etc.

So to overcome such problems, Personal Handy-phone System [PHS] was introduced. In this system, vehicles are tracked using Low Earth Orbit Satellites continuously. Not only this, the vehicle owner can see the road map of the location on which he is heading towards or weather report / forecast of his locality or whether the heading road is clear or traffic-jammed and if road is blocked which is the alternative way to reach the destination etc.

The Project is not about the GPS, but about the ‘VEHICLE TRACKING’ system using RF FREQUENCY. This system is intended to help the RTO, Police Department, Public Transport and Cargo Companies to track the vehicles.





ABOUT PROJECT

As in our project and implimentation we are using PHS technology using this technology it is possible to detect the vehicle in not reachable area also.

PHS TECHNOLOGY

PHS (personal handy system) this system acts like an cordless phone in home, and mobile phone out side the home and satellite phone once it goes out of reach where GSM can not track at that time.
This system is recently launched in japan, chaina, and Taiwan.
PHS comes under 3.9 G
It has very vast application.

HOW EFFECTIVELY IT CAN BE IMPLIMENTED

The ‘RF SYSTEM FOR VEHICLE TRACKING’ System can be explained by taking Toll Gate Model as follows: The Toll Gate Office is having a Personal Computer, which is connected with the receiver and the software to run ‘Automation of Toll Gate’ System. To implement this System every vehicle must be fitted with remote RF transmitter, hidden behind the Number Plate of the Vehicle. The job of this RF transmitter is to transmit continuously the Number of Vehicle on which it is mounted, in coded form.

When any vehicle enters the zone of Toll Gate Office, the sensors buried side of the road sends “a vehicle has entered’ signal to Toll Gate Office PC. This in turn Computer activates the RF Receiver fitted on front end of Office and hence gets the Vehicle Number of the entering vehicle [capturing the signal sent by vehicle’s RF transmitter]. The computer scans its centralized database and displays the details of that vehicle with the current time & date. The details are: Registration Number & Model Number with vehicle’s body color, Owner’s Name & Address, Date of Registration, Current status – Clear or is in black list of any department etc. If the vehicle records show its Current Status is clear, then the gate will be opened automatically. Otherwise, the gate will not open and the vehicle owner will be called for further enquiry.
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The Regional Transport Office or RTO’s can use this System to watch the unregistered vehicles or trace the other state vehicles. The Cargo Companies can intimate their on-road vehicles about the latest development in the delivery plan and give the next delivery address. The Public Transports can keep the details of each vehicles check-in and check-out times with number of rotations it makes in a day. The Police Department can easily stop the wanted vehicle, by posting the Vehicle’s Register Number on its Data Base. As the Toll Gate PC checks this Data Base and founds the Current Status as ‘wanted’, it does not open the gate and immediately alerts the concerned authority.
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But the presented project and implimentation is not so sophisticated to deliver all the features explained above. The actual working explanation of this Automation of Toll Gate model is as follows: The main requirement to implement this system is need of a RF transmitter which can transmit vehicle’s registration number. This requirement is fulfilled by fitting wireless RF transmitters besides the Number Plate of the vehicle. These RF transmitters represent different numbered vehicles which are going to cross the toll gate.

The RF receiver detects the vehicle number and sends the message to Computer through buffer. The computer detects the number and displays the details of the Vehicle with its Current Status. Simultaneously the receiver switches ON the motor to open the gate, and let the vehicle pass without any interruption.

MAIN FEATURES OF THE PROJECT:
1. Effective in implementation.
2. Low power consumption, and compact size,
3. High reliability, due to the usage of power semiconductor devices,
6. Greater control range due the usage of Frequency Modulation with a PC.
7. Vehicles monitored from a remote area (no need of 'line-of-sight’ arrangement).


BLOCK DIAGRAM DESCRIPTION

The RF ID SYSTEM FOR VEHICLE TRACKING is better understood by explaining the block diagram units in two separate sections: Receiving End or Toll Gate Control Room Unit & Transmitting End. This system is designed to automatically open the Toll Gate whenever there is a registered vehicle on the road, and within the Toll Gate zone.




























THE SIMPLIFIED BLOCK DIAGRAM IS DIPICTED AS FOLLOWS;









BLOCK DIAGRAM DESCRIPTION

The ONLINE VEHICLE TRACKING WITH REMOTE LOCKING is better understood by explaining the block diagram units in three separate sections: Viz.;

1) Vehicle ID Transmitter
2) Cell Unit / Cell Broadcaster
3) Centralised Monitoring Unit

VEHICLE ID TRANSMITTER :

















The Fig 2.2 shows the RF / IR ID Transmitter fitted besides the Number Plate of the Vehicle. The explanation of each block goes like this:

RF / IR ID CHIP: This is heart of the RF / IR ID Transmitter, as it contains the Vehicle’s registration number in unique RF / IR code. Every such transmitter fitted besides the Number Plate is implanted with one RF / IR ID Chip.

AMPLIFIER: The RF / IR ID coming out of RF / IR ID CHIP is very weak in nature, and cannot be transmitted as it is. So certain level of amplification is done using Amplifier stage.

RF / IR TRANSMITTER: This block has nothing but one antenna coil which is tuned for Radio Frequency range signals. This antenna helps the RF / IR ID signals to spread around the area for identification purpose.

POWER SUPPLY UNIT: As the whole RF / IR ID Transmitter Unit goes with the vehicle, its power supply must be kept compact and compatible with all kinds of vehicles and its power generators.

II) CELL UNIT / CELL BROADCASTER :

The Fig 2.3 shows the IR ID Transmitter installed within the vehicle transmits is fitting arrangement besides the Number Plate of the Vehicle.








RECEIVING END:

Here the receiving system is basically a set of VHF receiver network with UD decoder & interfacing unit. As seen from the following block diagram, the RF / VHF signal is received by the receiver and then interfaced to computer through a set of buffer circuit, driver stage, relay switching network and to the parallel port.





























The explanation of each block goes like this:

RF / IR ID RECEIVER/DECODER: The Radio Frequency signal [which contains each vehicle’s registration number in unique RF / IR code] transmitted by the moving vehicle is received by this Receiver. This block process the received signal and gives the out put in 4-bit pattern.

BUFFER: This is to provide the stronger current path to the decoded 4-bit signal and also to isolate the RF / IR ID Receiver section from the rest of the circuit. This stage is there because the next section deals with the relay and needs the strong signal to drive its switch to saturation region.

DRIVER: This block is introduced as 4-bit decoded signals are fed to computer through relay stage. And relay needs driver stage for its activation.
RELAYS: The four relays represents 4-bits of the decoded signals and are gets activated whenever corresponding bit is High.

MOTOR CONTROLLER: This driver section acts as an electronic switch and operates Gate Open/Shut Motor. When it senses the Gate Open signal from the PC, driver section switches the motor and thus opens. And certain delay is introduced by software and then sends Gate Close signal to shut the gate.

PC WITH SOFTWARE & DATABASE: The software recognizes the decoded signal and starts scanning its database for the details. After fetching the details, it shows in standard fashion on the screen for operator’s knowledge. And simultaneously order the Motor Controller section to open the door. All these interaction are carried out through interface circuit, which sits next to the PC’s port.

POWER SUPPLY UNIT: As this stage has driver & relay stages, requires dual regulated power supply for working purpose. Specially designed +12 & +5 Volts regulated power supply is used to give proper working voltage to the whole section.




To put in simple words, the project and implimentation when installed in particular vehicle & at suitable geographical points

The ONLINE VEHICLE TRACKING WITH REMOTE LOCKING System can be explained by taking Model as follows: The Office is having a Personal Computer, which is connected with the receiver and the software to run ‘Automation of ’ System. To implement this System every vehicle must be fitted with remote RF / IR ID transmitter, hidden behind the Number Plate of the Vehicle. The job of this RF / IR ID transmitter is to transmit continuously the Number of Vehicle on which it is mounted, in coded form.

When any vehicle enters the zone of Office, the sensors buried side of the road sends “a vehicle has entered’ signal to Office PC. This in turn Computer activates the RF / IR ID Receiver fitted on front end of Office and hence gets the Vehicle Number of the entering vehicle [capturing the signal sent by vehicle’s RF / IR ID transmitter]. The computer scans its centralized database and displays the details of that vehicle with the current time & date. The details are: Registration Number & Model Number with vehicle’s body color, Owner’s Name & Address, Date of Registration, Current status – Clear or is in black list of any department etc. If the vehicle records show its Current Status is Clear, then the gate will be opened automatically. Otherwise, the gate will not open and the vehicle owner will be called for further enquiry.

The Regional Transport Office or RTO’s can use this System to watch the unregistered vehicles or trace the other state vehicles. The Cargo Companies can intimate their on-road vehicles about the latest development in the delivery plan and give the next delivery address. The Public Transports can keep the details of each vehicles check-in and check-out times with number of rotations it makes in a day. The Police Department can easily stop the wanted vehicle, by posting the Vehicle’s Register Number on its Data Base. As the PC checks this Data Base and founds the Current Status as ‘wanted’, it does not open the gate and immediately alerts the concerned authority.


But the presented project and implimentation is not so sophisticated to deliver all the features explained above. The actual working explanation of this Automation of model is as follows: The main requirement to implement this system is need of a RF / IR ID transmitter which can transmit vehicle’s registration number. This requirement is fulfilled by fitting wireless RF / IR ID transmitters besides the Number Plate of the vehicle. These RF / IR ID transmitters represent different numbered vehicles which are going to cross the .

The RF / IR ID receiver detects the vehicle number and sends the message to Computer through buffer. The computer detects the number and displays the details of the Vehicle with its Current Status. Simultaneously the receiver switches ON the motor to open the gate, and let the vehicle pass without any interruption.



RECEIVING END:




























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