GPS Based Security System

Anyone considered building their own GPS based security system?

I was wondering if you could put a usb gprs modem in the back of it, and then everytime it booted up, and a keycode was not entered, it would see where it was, and then SMS/EMAIL you its log/lat and/or postcode to a specified mobile.

Seen this: http://www.laipac.com/gsm-gprs-usb-modem.htm which made me think of it.

A simple pay as you go SMS card would be all you need, plus you can recredit it without being on the same phone with some of them.

Any thoughts?

Chewiee

We sell a Vehicle Tracker, a very similar product to your idea. Essentially it's a GSM mobile phone, data card, battery, movement sensor and some simple intelligence. The GPS plugs into it to provide current location. At any time you can ring it from a modem equipped PC to find the current location, download the history of where it has been or track it in realtime. You can also set a geo-fence so if the vehicle moves outside (or inside) the fence it will send you a text message. It can also be hooked up to a couple of digital inputs, maybe the alarm or a pressure sensor and again it'll text you to let you know.

Regards
Doug
www.action-replay.co.uk