Implementation of GSM based commercial automobile tracker using PIC 18F452 and development of Google Earth embedded monitoring software

The vehicle tracker system uses conventional GSM based communication to monitor the location of an automobile at a remote monitoring station and allow stopping the vehicle when required. The system presents the vehicle driver an option to generate an alert signal at the monitoring station using a secreted switch, when in danger. The system also monitors tracker temperature and operating voltage to ensure the correct operation of the system. The PIC18F452 controller employed provides a single unit compact module with built-in ADC and UART modules. The monitoring software is developed for a user friendly GUI with visual indication of location on Google Earth and easy to understand controls. Continuous or intermittent updating of location is possible as demanded by the situation and status of the monitored vehicle. The system is designed for commercial trackers and can be used for local guidance systems.