GPS utilizes the global navigation system to determine the ground position in a timely manner by receiving satellite signals. Modern technology transmits the ground position determined by GPS to some professional positioning platforms through GSM wireless network, and marks the current position on the platform. Users can easily obtain the location of the target using this method. The application of GPS in car trackers has been applied to all aspects of life. In police investigations, GPS car trackers are an indispensable part. After the police place GPS locators on the action tools of criminals, they can easily see all the areas and routes of criminals in the police monitoring center, achieving timely detection of criminal dens and solving security risks. GPS is an essential platform in car tracking. Currently, there are many such platforms in China, which contain various latest electronic maps and Google satellite images. Timely annotation of the location information uploaded by the GPS car tracker allows users to have a clear understanding of the target's location at a glance.

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