Vehicle Pre-Emptive System

Intan Baizura , Ahmad Tarmizi (2005) Vehicle Pre-Emptive System. Project Report. Melaka, Malaysia, UTeM. (Submitted)

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Abstract

Nowadays, there is an enormous variety of different type of transmitters used to generate the signals that can be found in the radio spectrum. The purpose is to generate the basic signal or carrier and then superimpose the modulation onto it in the correct format. However, there are specifications of frequency spectrum that allowed by Telecom Malaysia. Once this is done, the signal is then amplified to the correct level and filtered to remove any spurious products that are outside the required band. The output stage may also include a simple conditioning circuit to ensure there is an accurate impedance matching between the traffic light controller and transmitter. Then, the maximum power transfer will happen. While that, for the receiver, it performs two mains functions. The ftrSt operation will remove the modulation from the radio frequency signal. After detection, it gives a signal and will interrupt the traffic light controller at frequencies that can be amplified by an audio frequency amplifier. The other thing is to provide selectivity. In this function is not performed well than a number of different stations will be received at one time maldng it very difficult to copy any of them. Whatever the use of transm;tter or receiver, the fundamental concepts are the same and the same bwlding blocks are use and the same specifications are applied. Carelessness is a main important point that leads to the creation of this project. To overcome this problem, a vehicle pre-emptive system is proposed. The system uses m;croprocessor 68k as a tool to collect input data, process and release output data. Otherwise the m;croprocessor will have an interfacing with the transmitter and also the receiver. As the result, the desired action will be done in the sequence of traffic light This method is considered effective because it gives several benefits to the consumer. Overall, this project will resolve to be the solution to many problems occurred and could give convenient to the handicapped person;·

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