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Vehicle-mounted navigation positioning performance debugging method based on whole vehicle electromagnetic environment

A technology for in-vehicle navigation and positioning performance, applied in the field of in-vehicle navigation, can solve the problems of lack of performance testing and debugging of in-vehicle navigation systems, and achieve the effect of facilitating system calibration, reducing verification costs, and taking into account verification efficiency.

Active Publication Date: 2022-05-06
CHONGQING CHANGAN AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a vehicle navigation positioning performance debugging method based on the electromagnetic environment of the whole vehicle, so as to solve the problem of lack of performance testing and debugging of the vehicle navigation system in the prior art

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  • Vehicle-mounted navigation positioning performance debugging method based on whole vehicle electromagnetic environment
  • Vehicle-mounted navigation positioning performance debugging method based on whole vehicle electromagnetic environment
  • Vehicle-mounted navigation positioning performance debugging method based on whole vehicle electromagnetic environment

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[0038] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto.

[0039] Such as figure 1 As shown, the present invention provides a vehicle navigation positioning performance debugging method based on the vehicle electromagnetic environment, comprising the following steps:

[0040] 1) Collect vehicle electromagnetic environmental noise;

[0041] 2) Establish a noise database;

[0042] 3) System optimization: through noise spectrum analysis, the out-of-band noise adjusts the antenna filter resistance, capacitance, and inductance parameters; the in-band noise is based on the noise amplitude-frequency characteristics to control the positioning and adjust the system to make them work on BDS or GPS respectively. working mode, and at the same time, spread spectru...

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Abstract

The invention discloses a vehicle-mounted navigation positioning performance debugging method based on a whole vehicle electromagnetic environment. The method comprises the following steps: collecting whole vehicle electromagnetic environment noise; establishing a noise database and quantitative indexes; the noise data index curve is optimized through an algorithm, and different parameters are adjusted; based on the optimized noise parameters, the antenna position is adjusted, and a navigation positioning terminal, a whole vehicle navigation positioning test and a whole vehicle navigation whole vehicle road training test are carried out. According to the method, an algorithm is creatively used for optimizing the noise data index curve to adjust and optimize the noise parameters, the position of the antenna is adjusted so as to obtain the vehicle navigation and positioning performance under different parameters, and a basis and a direction are provided for vehicle navigation and positioning performance optimization under the vehicle electromagnetic environment.

Description

technical field [0001] The invention relates to vehicle navigation technology, in particular to a vehicle navigation positioning performance debugging method based on the electromagnetic environment of the whole vehicle. Background technique [0002] As the future development direction of automobiles, advanced automatic driving has broad prospects. As an important supporting part of automatic driving, high-precision positioning technology will be of great significance to the research on its accuracy; on the other hand, the further development of intelligent and electrified automobiles , the vehicle is loaded with a large number of electrical devices and controllers, making the electromagnetic environment of the vehicle more and more complicated. At present, with the integration of a large amount of information such as vehicle attitude and speed, vehicle positioning is gradually developing from traditional satellite positioning to integrated navigation and positioning based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01S19/21G01S19/23
CPCG01C25/00G01S19/23G01S19/21
Inventor 王雄邓文山郭迪军
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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