This paper discusses the design approach to control the intra vehicular applications comprising of anti-theft and anti-alcoholic system. For anti theft system, the major sensor used is the MQ-3 sensor. There is programming being done for anti-alcoholic system is that if the person is drunk then the system will sense the alcohol level and will not grant the permission to start his vehicle. There is secondary situation, if the person is having the alcohol while driving his vehicle then it will be reported to nearest police server with the help of GSM modem .For anti ââ?¬â??theft system we are designing the system comprising of GPS antenna and Receiver, GSM modem will be interfaced by programming with the microcontroller AVR-32 bit for storing and interfacing purposes. The system is so programmed that when the owner of the vehicle message to the system about his vehicle position, the programmed system gets the location from GPS receiver and send its position with help of GSM modem back to the owner. The design is robust and simple.
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