Vehicle-mounted navigation system

Abstract

The invention relates to the technical field of navigation and positioning, and discloses a vehicle-mounted navigation system. The vehicle-mounted navigation system comprises a docking device and a head-up display module, wherein the docking device comprises a processing module, a satellite positioning module, an inertial measurement module, a navigation module and a communication module; and thedocking device is operatively coupled to the head-up display module, and through the head-up display module, the high-precision navigation information is displayed. Accordingly, the invention also discloses a control method for the vehicle-mounted navigation system. The system and the method disclosed in the invention have certain technical effects that the high-precision navigation information can be displayed through the head-up display module, a driver can quickly, intuitively and conveniently acquire the lane-level positioning and navigation information, and the safety of a driving processcan be improved.

Description

technical field [0001] The invention relates to the technical field of navigation and positioning, in particular to a vehicle navigation system and a control method. Background technique [0002] At present, in the field of navigation and positioning for vehicle driving, most positioning modules are integrated in the driving recorder. [0003] The patent document with the publication number WO2016074487A1 proposes "a navigation device, terminal and method with driving recording function". The navigation module of the navigation device can perform route navigation and route planning, and provide navigation data to the driver through the display module. Provide location information, speed information, etc. for driving and riding, and improve user experience. [0004] The patent document with the publication number CN102717766A proposes "vehicle information system with camera, data interaction, projection display, and navigation". The GPS module receives navigation data from G...

AI Technical Summary

Problems solved by technology

[0005] The driving recorder is generally installed near the rearview mirror, and there is a certain angle with the driver's front view. It is difficult for the driver to directly observe the navigation reminder information, and it is easy to miss some information about steering or safety reminders.

[0006] In addition, the ordinary positioning provided by ordinary driving recorders relies on GNSS ((Global Navigation Satellite System, which can be understood as "global navigation satellite system"). Due to ionospheric errors, tropospheric errors, multipath effects, satellite clock errors, and receiver clock errors etc., when the satellite signal is not blocked, the GNSS positioning accuracy is generally greater than 2 meters, so ordinary driving recorders can only display road-level navigation information, and cannot meet the needs of lane-level navigation

[0007] In addition, under complex road conditions, such as trees, tunnels, and overpasses, GNSS signals are seriously blocked, and the positioning module of ordinary vehicle-mounted head-up display devices cannot obtain satellite signals, and the device cannot be positioned. The on-board head-up display device cannot be used for navigation, and it is not easy for the driver to judge his own location

[0008] In summary, the existing technology has the problems of inconvenient viewing of navigation information and difficulty in judging the real position of the vehicle on the road

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