Engineers who have an understanding of the positioning and navigation module 4g ​​gps tracker for car and the Beidou module know that GNSS (GPS/BDS/GLONASS/GALILEO) satellite navigation has weak signals such as trees obscured, tall buildings, under elevated highways, tunnels and public parking lots. The environment cannot provide accurate positioning information, and the position will show a small amount of drift.

Therefore, there is an urgent need for a vehicle-mounted positioning module that can complete high-precision positioning in a weak signal environment. The problem of positioning drift is found, then the problem is solved. B has developed and launched a car integrated navigation module SKM-4DX that uses integrated navigation and positioning technology to address GPS signal drift and inaccurate positioning in a weak signal environment.

Meet the growing demand for high-precision positioning of car navigation in weak signal environments, and provide high-precision positioning for vehicles even in tunnels, garages and other environments. The car integrated navigation module is a high-performance car integrated navigation module oriented to the field of car navigation, using integrated navigation positioning technology.

4g gps tracker for car relies on high-precision six-axis inertial devices, and mature inertial navigation algorithms, without the need for odometer or speed signal access. It has the characteristics of high flexibility, low power consumption, anti-interference, high performance and so on. Based on the high-precision navigation information provided by the integrated navigation, the positioning accuracy of the satellite navigation is stopped. If the satellite navigation accuracy is good, the integrated navigation is stopped. Once the satellite navigation signal is found to be so poor that the signal is lost, the inertial navigation system is used to make the navigation system Continue to work to ensure the normal operation of the navigation system and improve the stability and reliability of the car navigation system.