Said before, the current principle of GPS tracking is to send data to a server through GPRS, if you look back at the data from the server up data, the server in the entire system has a pivotal position.
If the server is broken, thousands of devices across the system may not work. Server data loss can also cause huge losses. There is if the server to replace the IP address, GPRS terminal will not know where to send data, but can also use the binding domain name, by resolving the domain name to obtain the latest address, the same will increase the complexity and maintenance of a domain name cost (purchase domain name is usually the first year cheaper, and later more expensive).
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So if the system is doing well enough, you can configure the module in the user's hands with remote TCP. Is the user happy to do so? Updated data without permission?
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Back to the server, has been said that the server is the entire system of the mishap, these days for testing the remote server suddenly received the official mail yesterday, the server estimated days or dozens of days can not be used.
Such ghosts are not common! But it was a tragedy when I met him!
If provided to the user with such a server, not be scolded to die will be bored to death!
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So to develop a two-position mode, a use of the server, a direct text message to send latitude and longitude, mobile phone installation of a software to show the latitude and longitude information is good
The recommended purchase with two modes, because the server this thing completely control in the hands, if not good to completely white blind ....
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Server mishap of "open source GPS tracking"