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How does a GPS tracking system work?

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Jagdish Bisawa
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re: How does a GPS tracking system work?
Jagdish Bisawa   10/29/2010 1:02:56 PM
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The GPS Map integration is not a simple affair & is probably out of the scope of this article. Normally, the Map software is integrated with another software that is reading the GPS co-ordinates, using the API of the Map software. How it can find the optimum path depends on the path-tracking algorithm that is used. You have misunderstood the definition of Active GPS. Active GPS does not reply back to the satellite ( it is still a one-way communication). However, Active GPS enables the transmission of the position information, using available network to a (usually) central server. The central server thus enables monitoring of the GPS co-ordinates in real-time, thereby leading to application like Vehicle Tracking System or human-tracking.This is in contrast to the Passive GPS systems that the author is talking about. Passive GPS sytems store the data in their memory devices, to be read-out by the user or to be transmitted at fixed transmission points along the journey

Panch
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re: How does a GPS tracking system work?
Panch   10/29/2010 12:03:54 PM
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Can you comment on how GPS and a map (e.g. Google map) can interact? If I give the destination location, how is it able to map the best possible route and track if I am going on the right track? Another related question I have is that for the active system, does it mean that the receiver sends a feedback signal back to the satellites? If so, how does it work? If not, what is the path taken for the reverse data tx?

Jagdish Bisawa
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re: How does a GPS tracking system work?
Jagdish Bisawa   10/29/2010 7:20:38 AM
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Velappan, With an incomplete, improperly famed question, nobody will be able to help you. Please frame your questions in a correct manner & maintain the content-sanctity of the site.

velappan
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re: How does a GPS tracking system work?
velappan   10/29/2010 5:37:05 AM
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i have knowledge in GPS and how to comments used in pic micro controller... plz help me..

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