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Zero calibration method, equipment and device, electronic equipment and computer readable storage medium

A zero-point calibration and zero-point offset technology, applied in the field of sensors, can solve the problems of non-zero sensor data output and zero-point error, etc.

Pending Publication Date: 2021-12-10
SHENZHEN BAICHUAN SECURITY TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

When the measured physical quantity is zero, the data output of the sensor is often not zero, that is, there is a zero point error

Method used

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  • Zero calibration method, equipment and device, electronic equipment and computer readable storage medium
  • Zero calibration method, equipment and device, electronic equipment and computer readable storage medium
  • Zero calibration method, equipment and device, electronic equipment and computer readable storage medium

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Embodiment Construction

[0021] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present application, and should not be construed as limiting the embodiments of the present application.

[0022] see Figure 1 to Figure 3 , the embodiment of the present application provides a zero point calibration method of the vector sensor 200 . The zero point calibration method includes:

[0023] 01: Obtain the reference data when the vector sensor 200 measures the reference vector twice;

[0024] 02: Obtain the zero point offset M of the vector sensor 200 according to the reference data 0 ;

[0025] 03: Get the raw data R of the vector sensor to measure any vector k ;and

[0026] 0...

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Abstract

The invention discloses a zero calibration method, zero calibration equipment and zero calibration device of a vector sensor, electronic equipment and a nonvolatile computer readable storage medium. The calibration method comprises the following steps of: acquiring reference data when a vector sensor measures a reference vector twice; obtaining a zero offset M0 of the vector sensor according to the reference data; obtaining original data Rk of any vector measured by the vector sensor; and obtaining effective data Vk according to the zero offset M0 and the original data Rk. According to the calibration method, the zero offset M0 of the vector sensor can be obtained according to the reference data obtained when the reference vector is measured twice, the effective data Vk is obtained according to the original data Rk obtained by the vector sensor and the zero offset M0, and the effective data Vk is vector data obtained after the zero error of the original data Rk is eliminated and is closer to the actual value of a measured vector.

Description

technical field [0001] The present application relates to the field of sensors, and more specifically, to a zero-point calibration method for a vector sensor, a zero-point calibration device, a zero-point calibration device, electronic equipment, and a non-volatile computer-readable storage medium. Background technique [0002] The vector sensor can give the direction and magnitude of the measured physical quantity. For example, the three-axis magnetoresistive sensor can measure the direction of the earth's magnetic field and is used to make a compass to realize the azimuth measurement function. For example, the three-axis acceleration sensor can measure the gravitational acceleration of the earth to give The angle of inclination relative to the horizontal plane. When the measured physical quantity is zero, the data output of the sensor is often not zero, that is, there is a zero point error. How to reduce the zero point error has become an urgent problem to be solved by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00G01P15/18G01P21/00G01C25/005G01R33/0286G01R33/0206G01R33/0029G01C17/38G01P1/00
Inventor 雍升刘小宇周瑞阙玉龙
Owner SHENZHEN BAICHUAN SECURITY TECH CO LTD
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