Acquire Bus Information using GSM Technology

The system designed here is very useful for the passengers those who are waiting at bus stop to catch specific number bus. As the bus is equipped with GSM based processor and where as the bus stop is equipped with time data transmitter, the passenger can identify that at what time the bus has reached to its previous stage or before that stage. Based on this information, the passenger can estimate the position of bus. This can be achieved by sending SMS to the GSM installed in the bus. The demo module is simulated with two bus stages and each stage has to be equipped with its time data transmitting unit. This unit contains RTC and it is interfaced with microcontroller can display the running time accurately through 7- segment display. This time data is transmitted continuously through IR led. Now whenever the bus reaches to the stage, this time data will be acquired through TSOP (IR sensor package) and it will be stored in to the ROM of main processing unit. The GSM module interfaced with main processor can send the time information along with left over bus stop name (i.e. reaching time of previous bus stop) to the caller in the form of SMS. Means whenever any passenger enquires to know the position of bus by sending SMS to the concern processor installed in the bus, information will be passed to the calling mobile automatically. Since it is a prototype module, system is developed for two stages, but for practical approach each and every bus stop must be equipped with real time clocks with data transmitters and similarly each and every bus also must be equipped with the processing unit. In this fashion all buses information can be acquired by calling them through mobile. Major building blocks: RTC’s, Micro-controllers, 7- segment displays, modulators, TSOP1738 IR sensor package, Max232, GSM module. Simulation of bus stops, toy bus, high power battery and its charger, etc.