GPS anti-theft device is currently the most advanced anti-theft device. In addition to ordinary anti-theft, it can also quickly track the position of a car when it is stolen, thereby retrieving the car. However, GPS anti-theft devices are more expensive than ordinary anti-theft alarms and require additional service fees, so their popularity is not high. The GSM mobile anti-theft device relies on the GSM communication network, combined with the intelligent linkage of mobile phones and cars for anti-theft. The alarm of this type of anti-theft device is not limited by distance and covers a wide network, but it needs to pay a monthly rental fee for the GSM number.

　　The GPS receiver device installed on the vehicle calculates the current position of the vehicle based on the received satellite information. The communication controller extracts the required position, speed, and time information from the signal output by the GPS receiver, combines it with vehicle identity and other information to form a data packet, and then sends it to the monitoring center through the GPRS network of the mobile operator. The server of the monitoring center receives data sent by the onboard computer, extracts positioning information from it, and displays it on the electronic map of the monitoring center based on the vehicle number and group number of each vehicle. The GPS positioning anti-theft device has a stronger function, almost integrating all anti-theft functions, and can accurately locate within a range of 5 meters using satellites, which is in front of the eyes. Its sensors use wireless sensing, which is difficult to destroy.

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