Vehicle combined navigation system based on intelligent navigation algorithm

A vehicle combined positioning system based on intelligent positioning algorithm consists of a GPS module, an electronic compass, a speed sensor and a speed signal processing circuit, an intelligent map-matching algorithm module, a vehicle track history display, recording and playback module, and a voice prompt module; the intelligent map-matching algorithm module uses the GPS positioning data, travel distance data output by the speed sensor and travel direction data output by the electronic compass, integrates the road network information on the electronic map, calculates on the known road with travel distance, so as to position the current location of the vehicle. The system is not affected by GPS signal, realizes uninterrupted vehicle positioning functions, and the implementation cost of the system is low.