In the above, we use ARM7 processor for the vehicle section of the system, which is a high end 32 bit microprocessor, executes the instructions very fast and we use PIC microcontroller for the transmitting section of the system. The controller receives it and responds back with values of latitude and longitude given by GPS. We use GSM to know that where the vehicle is located exactly by sending a message. We also have GPS in this Paper to locate the vehicle. If the balance is not available in the card then gate will not be opened. If sufficient amount exits in the card then the gate will be opened and whenever the vehicle crosses then with in 2min automatically gate will be closed. When the Vehicle is entered then RFID will be active and the reader reads the tag and microcontroller checks with the database for the balance for the balance enquiry. The role of RFID is to identify the vehicle. These chips are commonly referred to as UART (universal asynchronous receiver. devices will have a PDF algorithm in place of the PD algorithm or even an. This paper plays a vital role now a day because we use RFID technology with GSM to develop the Application. There are special ICs made by many manufacturers for serial data communications. Serial Communications Primer is intended as a. The main theme of this paper is to avoid human existence at the toll gates and it plays an automatic role in permitting the vehicle to go/stop by taking the payment.
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