Speed ​​calibrator and speed calibration method based on Beidou bds high-precision positioning

A high-precision, calibrator technology, applied in the direction of speed/acceleration/shock measurement, testing/calibration of speed/acceleration/shock measurement equipment, satellite radio beacon positioning system, etc. Achieve higher accuracy, lower production costs, and wider calibration range

Active Publication Date: 2022-03-29
NANNING GUANGBO TECH
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Problems solved by technology

[0004] The existing vehicle speed calibration is usually sampled by a single GPS sampling module. The single-chip micro-controller realizes the vehicle speed calibration and display. Its accuracy depends entirely on whether the positioning of the corresponding GPS sampling module is accurate or not. The dependence is high, and there may be speed measurement deviation.

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  • Speed ​​calibrator and speed calibration method based on Beidou bds high-precision positioning

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[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0045] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0046] The existing vehicle speed calibration is usually sampled by a single GPS sampling module, and the single-chip micro-controller realizes the vehicle speed calibration and display. Its accuracy depends entirely on whether the positioning of the corresponding GPS sampling module is accurate, and the dependence is high, and there may be deviations in speed measurement; these deviations are Part of the reason comes from the reception of satellite signals.

[0047] Therefore, the present invention provides a speed calibrator based on Beidou BDS high-precision positioning, such ...

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Abstract

The invention discloses a speed calibrator based on Beidou BDS high-precision positioning and a speed calibration method. The speed calibrator based on Beidou BDS high-precision positioning includes: a vehicle-mounted machine and a BDS background; wherein, the vehicle-mounted machine includes a shell, a BDS receiving chip, GPS receiving chip, control system, communication module, LED display screen; wherein, BDS receiving chip, GPS receiving chip, communication module and LED display screen are all connected with the control system control; BDS background includes signal collection module, computer, signal emission module, partition module and storage module; the invention has simple structure and convenient operation, can select a suitable speed calibration method according to the actual satellite signal capture situation, has high calibration precision, and is suitable for market promotion.

Description

technical field [0001] The invention relates to the technical field of automobile data processing. More specifically, the present invention relates to a speed calibrator and a speed calibration method based on Beidou BDS high-precision positioning. Background technique [0002] Most of the vehicle-mounted speed measurement devices currently on the market are "electronic dogs" composed of GPS modules, which also have speed measurement functions, but they are aimed at ordinary family cars, and the sampling frequency of GPS signals is too low. [0003] Over the past few years, traffic management departments have continued to increase their investment in speed measurement equipment, but drivers have doubts about the accuracy of the measurement data of speed measurement equipment. Generally, the speed measurement equipment is tested once a year, but due to related objective reasons, the measurement data of the speed measurement equipment may be inaccurate during this period, res...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02G01S19/14G01S19/33
CPCG01P21/02G01S19/14G01S19/33
Inventor 岑家敏
Owner NANNING GUANGBO TECH
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