GPS tracker and alcohol detector with engine locking system using GSM

We have seen many news of accidents caused due due to drunk and drive. We have designed this project to solve the said problem. The basic functioning of the GPS tracker and alcohol detector project: As shown in the video demonstration, the project is actuated on switching on the vehicle with the help of ignition key. This would actuate the working circuit and make the entire unit in a vigilant mode. Alcohol detection is performed in real time by the alcohol sensor, the microcontroller and Analog to digital converter circuit. Thus there is never a situation when the system is in a shadow or a sleep state. In the GPS based drunk and drive detection project, the system generates an alarm once the level of alcohol measured in above a set threshold value. At the same time engine locking is done with the help of deactivating Relay and DC motor. Also it reads data from the GPS unit which gives the position of the vehicle to microcontroller.