The whole system runs by a complex protocol. Here more then one technology works together for serving the mankind. Here GPS, GPRS and GIS these three separate technology work independently and Vehicle Tracking System coordinate these three for its interest and give a pictorial display to the client by its device and software. Let it take a short tour of this technology.

The CADGPS is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 Medium Earth Orbit satellites that transmit precise microwave signals, the system enables a GPS receiver to determine its location, speed, direction, and time. Developed by the United States Department of Defense. The satellite constellation is managed by the United States Air Force 50th Space Wing.

General Packet Radio Service (GPRS) is a packet oriented Mobile Data Service available to users of Global System for Mobile Communications (GSM). It provides data rates from 56 up to 114 kbit/s. GPRS can be used for Internet communication services such as email and World Wide Web access. GPRS is a best-effort packet switched service, as opposed to circuit switching, where a certain Quality of Service (QoS) is guaranteed during the connection for non-mobile users.

A Geographic Information System (GIS), is any system for capturing, storing, analyzing and managing data and associated attributes which are spatially referenced to Earth. This data are use for digital map representation of any part of the earth. Geographic information science is the science underlying the geographic concepts, applications and systems, taught in degree and GIS Certificate programs at many universities.

A Vehicle Tracking System is an electronic device installed in a vehicle to enable the owner or a third party to track the vehicle location. Most modern vehicle tracking systems use Global Positioning System (GPS) modules for accurate location of the vehicle. Many systems also combine a communications component such as cellular or satellite transmitters to communicate the vehicle location to a remote user. Vehicle information can be viewed on electronic maps via the Internet or specialized software. Corporations with large fleets of vehicles required some sort of system to determine where each vehicle was at any given time. Vehicle tracking systems can now also be found in consumers vehicles as a theft prevention and retrieval device. Police can follow the signal emitted by the tracking system to locate a stolen vehicle.

Now come to the point how we serve our service to you.

• Step 1: Location and time information of vehicle is received by the device from GPS satellite.
• Step 2: Device sends this information using GSM network through GPRS to the central server.
• Step 3: The cadGPS application software, residing in the control station, generates reports/ alerts/ maps
• Step 4: The reports/ maps are available online through cadGPS web application.
• Step 5: The fleet manager views the vehicle on the map and receives the vehicle status over internet.
• Step 6: Alternately data on the location, speed and time can be accessed by the user through a mobile phone query or through the call center
• Step 7: As and when required, fleet manager can poll data at the click of a button.

In case of theft of a vehicle, the options of "Blow horn" and "Open Doors" may be triggered-this will attract the attention of passers by. Further, the vehicle will come to a grinding halt by opting the "Engine Block" feature on the computer screen of the software. This way, the vehicle may be saved from theft/robbery and also it run your transport business more profitable.