REAL-TIME VEHICLE THEFT CONTROL SYSTEM USING ENGINE TEMPERATURE MEASURING TECHNIQUE
The main aim of this project is to provide security to the cars especially to the engine in the cars. This system automatically locks the car as soon as it receives a predefined message from the user.
This project uses the wireless communication, GSM. To receive the messages from the user mobile, we need a GSM modem. This modem will be interfaced to the microcontroller through serial interface. The modem provides the communication interface. It transports device protocols transparently over the network through a serial interface. The GSM modem is a wireless modem that works with a GSM wireless network. A wireless modem behaves like a dial-up modem. The main difference between them is that a dial-up modem sends and receives data through a fixed telephone line while a wireless modem sends and receives data through radio waves.
If the owner (of the car) is somewhere far from the car and he wants to lock the vehicle right from the place he is standing, he has to send a predefined message to the modem. The controlling unit contains the microcontroller and the GSM modem interfaced to it. The controlling unit will be fixed to the vehicle. The microcontroller continuously checks whether it has received any message from the modem.
When the user sends the predefined message to the modem, the modem receives the message and intimates the same to the microcontroller. The microcontroller retrieves this message from the modem by issuing certain AT and T commands to the modem. Thus, after receiving the message from the modem, the microcontroller automatically locks the vehicle immediately. This will be done perfectly without the involvement of any human. The locking of the vehicle is shown by the relay in this project.
Whenever anyone tries to unlock or take away the vehicle, immediately a message will be sent to the user mobile. Here we will provide high security by measuring engine temperature. In some cases the thieves may start the engine without ignition key so in this case we cannot find whether engine is started or not. But with the help of our system we can find easily whether engine started or not.
SOFTWARE AND HARDWARE TOOLS:
- Keil compiler
- Microcontroller AT89S52.
- GSM modem
- DC motor as engine
- LM35 temperature sensor