GPS Vehicle Tracking Systems spawned out of the development of mobile phones, personal computers and their GPS Global Positioning System and the Internet. They all came together to create the new technology known as Vehicle Telematics. You can now get the best GPS tracking system

What is Telematics and What it Means? - Spireon, Inc.

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The broad subject of Telematics may cover a wide range of topics. The primary focus of this article and on the UK Telematics Online website is on vehicle telematics. This is defined as "The utilization of computers and telecommunications in order to increase the productivity, functionality and safety of drivers and vehicles."

One of the most prominent components of vehicle telematics solutions includes Vehicle Tracking. Most vehicle tracking systems are composed of two major components that are hardware for location (also called a Vehicle Location Unit or tracking device) and software to track vehicles. The device used for tracking is typically hardwired into the vehicle. 

If you want a simple vehicle tracking system it is necessary to install the device by a simple three-wire connection, which includes an ignition switch as well as battery and earth. Devices for tracking that use SIRF II or similar GPS receivers require an external antenna, positioned in the line of view of the sky in order to be able to receive the highest quality GPS transmissions. 

Another antenna is employed to transmit information of the device, usually by using a mobile data network like GPRS. Newer generation GPS receivers can be able to eliminate the requirement for the additional GPS antenna. In general, tracking equipment used in a fleet management system utilizes GPS to locate the location.