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A method and device for calibrating a geomagnetic sensor of a terminal

A geomagnetic sensor and sensor technology, applied in the computer field, can solve the problems of lack of convenience and achieve the effect of improving operability and easy operation

Inactive Publication Date: 2019-04-16
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, in order to solve the technical problem of insufficient operational convenience in the calibration method of the geomagnetic sensor in the traditional technology, a method for calibrating the geomagnetic sensor of the terminal is proposed.

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  • A method and device for calibrating a geomagnetic sensor of a terminal
  • A method and device for calibrating a geomagnetic sensor of a terminal
  • A method and device for calibrating a geomagnetic sensor of a terminal

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] In order to solve the technical problem of insufficient operational convenience in the calibration method of the geomagnetic sensor in the traditional technology, in this embodiment, a method for calibrating the geomagnetic sensor of the terminal is proposed. The realization of this method can rely on the computer program , the computer program can run on a computer system based on the von Neumann architecture, and the computer program can be a calibration pr...

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Abstract

The embodiment of the invention discloses a method for calibrating the geomagnetic sensor of a terminal. The method comprises the following steps: starting the triaxial acceleration sensor and the triaxial geomagnetic sensor of the terminal; detecting the G-shaped movement rack motion operation carried out on the terminal; collecting at least three sampling points in the G-shaped movement track to obtain the acceleration value of the triaxial acceleration sensor and the magnetic induction value of the triaxial geomagnetic sensor when the terminal moves to every sampling point; and calibrating the geomagnetic sensor according to the collected acceleration value of the triaxial acceleration sensor and the collected magnetic induction value of the triaxial geomagnetic sensor, corresponding to every sampling point. Additionally, the embodiment of the invention also discloses an apparatus for calibrating the geomagnetic sensor of the terminal. The method and the apparatus can improve the operation convenience of the geomagnetic sensor of the terminal in the calibration process.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for calibrating a geomagnetic sensor of a terminal. Background technique [0002] Although the Global Positioning System (GPS) has a wide range of applications in navigation, positioning, speed measurement, and orientation, its signal is often blocked by terrain and features, resulting in greatly reduced accuracy and even unusable. The electronic compass is oriented according to the geomagnetic field. In some scenarios, it can effectively supplement or even replace GPS products and is widely used. In the prior art, geomagnetic sensors are installed in many smart phones and other terminals, and through geomagnetic sensor for orientation. [0003] Geomagnetic sensors need to be calibrated before use. The existing geomagnetic sensor calibration method is usually to rotate the geomagnetic sensor on the XY or XZ axis plane where it is located along the axis per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C17/38G01V13/00
CPCG01C17/38G01V13/00
Inventor 丁泽楠
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD