Vehicle positioning method, device and system
A vehicle positioning and positioning system technology, which is applied in the field of devices and systems, and vehicle positioning methods, can solve problems such as the reduction of satellite positioning accuracy, and achieve the effect of improving reliability
Active Publication Date: 2021-06-22
BEIJING LINGYUN TECH
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[0006] The embodiment of the present invention provides a vehicle positioning method, device and system to at least solve the technical problem of the existing vehicle positioning technology that the satellite positioning accuracy is reduced due to the blockage and reflection of wireless signals by buildings or large vehicles, etc.
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[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a vehicle positioning method, device and system. Wherein, the method includes: acquiring image information of at least one vehicle, wherein the image information at least includes: image information when the vehicle passes a preset marking line on the road; extracting corresponding position calibration data according to the image information of each vehicle, Wherein, the position calibration data includes at least: the identification information of each vehicle; based on the identification information of each vehicle, the position calibration data of each vehicle is sent to the corresponding vehicle, wherein the position calibration data is used for each vehicle. The location information located by the positioning system is calibrated. The invention solves the technical problem that the accuracy of satellite positioning is reduced due to the blocking and reflection of wireless signals by buildings or large vehicles in the existing vehicle positioning technology.
Description
technical field [0001] The present invention relates to the field of intelligent transportation, in particular to a vehicle positioning method, device and system. Background technique [0002] The precise positioning of vehicles is one of the key technologies to realize intelligent transportation. The emergence of Internet of Vehicles technologies such as DSRC (Dedicated Short Range Communications) and LTE-V can provide the intelligent transportation system with the precise location of vehicles and other relevant information, effectively reducing the accident rate and improving traffic efficiency. How to improve vehicle positioning to the level of lane division has always been the goal pursued by people. For this reason, people have proposed differential positioning technology, that is, using the ground station as a reference position can remove the satellite positioning errors caused by ionospheric delay, tropospheric delay, ephemeris error, and satellite clock error. [...
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IPC IPC(8): G01C11/00G01C11/04
Inventor 齐伟李斌
Owner BEIJING LINGYUN TECH