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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 the effect of reducing uncontrollable factors, low production cost and improving accuracy

Active Publication Date: 2020-11-27
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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Embodiment Construction

[0044] The present invention will be further described in detail below with reference to 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 assign 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, and its accuracy depends entirely on the accuracy of the corresponding GPS sampling module positioning. The degree of dependence is high, and there may be speed measurement deviations; 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 as figure 1 shown, includi...

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Abstract

The invention discloses a speed calibrator and a speed calibration method based on Beidou BDS high-precision positioning. The speed calibrator based on Beidou BDS high-precision positioning comprisesa vehicle-mounted machine and a BDS background. The vehicle-mounted machine comprises a shell, a BDS receiving chip, a GPS receiving chip, a control system, a communication module and an LED display screen; the BDS receiving chip, the GPS receiving chip, the communication module and the LED display screen are all in control connection with the control system; the BDS background comprises a signalcollection module, a computer, a signal emission module, a partition module and a storage module. The speed calibrator is simple in structure, convenient to operate, capable of selecting a proper speed calibration method according to the actual satellite signal capture situation, high in calibration precision and suitable for market popularization.

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] At present, most of the vehicle-mounted speed measurement devices 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] In recent years, the investment of the traffic management department in the speed measuring equipment has continued to increase, but the drivers also have doubts about the accuracy of the measurement data of the speed measuring equipment. Generally, speed measurement equipment is checked once a year, but due to relevant objective reasons, the measurement data of the speed measurement equipment may be inaccurate during this per...

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Application Information

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