What if: You go into a nice restaurant.
What if: You have a nice meal.
What if: During this time your brand new car get's stolen.
What if: Your car is calling you on your mobile phone for help?

Then you have this STA project or one like it in you car and you do not need to worry where to find your car! This project is dealing with different technologies and combines them into a product.

1. GPS

The Global Position System can determine your position on the globe almost everywhere. It is a satellite-based system with 24 geostationary satellites in orbit of this planet. It was built in the middle 90s by the military but is used also by civil applications like the well-known navigation systems. This project uses GPS to check, if the current position of your car is changing or not.

2. GSM

The Global System for Mobile communication is the standard for the current digital mobile phone technology. It sends on different frequency being 900/1800/1900 Mhz depending on in which country you live.
I this project the Siemens TC45 is used: A Java programmable GSM module which is like the main board of your own mobile phone but without display and keyboard.

3. µC programming

A microcontroller is the all-connecting part, which is used to evaluate all the input from the GPS and determine, whether there is a position change or not. It will then use the GSM module to alarm the user in case it was armed. In addition you can use the controller to make regular phone calls, and to arm or disarm the system.