1. Positioning accuracy: The positioning accuracy of the Beidou positioner mainly depends on the accuracy of the Beidou positioning system and the intensity of satellite signals. At present, the positioning accuracy of the Beidou positioning system is between 6 meters and 10 meters, and the positioning accuracy of the car GPS positioner is mainly the main positioning accuracy Relying on the accuracy of the GPS positioning system and signal. The accuracy of the global positioning system is 10-50 meters.

　　2. Number of users: Since Beidou adopts an active and two -way ranging response system, between the positioner and the Beidou satellite, not only need to receive the answering information issued by the ground control center, but also the response information issued by satellites. Therefore, the number of Beidou users may exist. There are certain restrictions.

　　However, the GPS positioning system uses a one -way ranging system, which can be completed by receiving satellite signals by receiving satellite signals only. Therefore, the number of users in the GPS positioning system is relatively small, but the restrictions on users of Beidou do not have to worry too much. Since the Beidou system was born for the "sniper" GPS system, then with the continuous development of the Beidou system, these problems will not be Become a problem!

　　3. Covering range: Beidou GPS positioner uses Beidou for positioning. Beidou GPS is a satellite positioning system independently developed by China. Its coverage is expanded from the original "China" to "Southeast Asian countries". The future goal is global coverage; GPS The navigator uses GPS for positioning. The GPS navigation system is the satellite positioning system independently developed by the United States, and its coverage is global.

　　The installation method of Beidou GPS positioner

　　1. Set the SIM card. Each GPS device needs to insert a GSMSIM card. When selecting the SIM card, please refer to the opinion of the monitoring service platform.

　　2. SIM card installation. Press the host SIM card seat button, the card slot will pop up automatically; insert the qualified SIM card corresponding "groove" direction into the card slot.

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