2g gps tracker needs to install the basic principle of SIM traffic card

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Anyone who has used 2g gps tracker knows that in order to use the device normally, a SIM card must be configured in the device, and the card is activated and can be used normally. Why does the 2g gps tracker have to be equipped with a SIM card to track the vehicle? It is not difficult to u

Anyone who has used 2g gps tracker knows that in order to use the device normally, a SIM card must be configured in the device, and the card is activated and can be used normally. Why does the 2g gps tracker have to be equipped with a SIM card to track the vehicle? It is not difficult to understand, just know the positioning principle of 2g gps tracker.

What is 2g gps tracker?

2g gps tracker is a terminal with built-in GPS module and mobile communication module. It is used to transmit the positioning data obtained by the GPS module to a server on the Internet through the mobile communication module (gsm/gprs network), so as to realize remote computer Or query the terminal, that is, the location of the vehicle on the mobile phone.

2g gps tracker positioning principle

After reading the above content, in fact, you already know the positioning principle of 2g gps tracker. The data sent by GPS satellites is received through the GPS module in the device, and then the data is transmitted to the server through the GSM/GPRS network for analysis. You can view the location of the vehicle on your mobile phone or computer.

Therefore, it is clear why the car GPS should be equipped with a SIM card, just to transmit data. If the SIM is in arrears or cannot be used for other reasons, the device will display offline on the monitoring platform. In addition, some GPS positioning devices have a monitoring function, which can be monitored by dialing the phone number of the SIM card on the device.

How much data is enough for the SIM card per month?

Generally speaking, 2g gps tracker is divided into two types, such as 2g gps tracker: 1. Real-time positioning (wiring type); 2. Timing positioning (installation-free type), so the traffic used is different, but the total In terms of traffic, there are very few megabytes per month for regular positioning, and no more than 30 megabytes per month for real-time positioning.

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