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Method and device for resisting charging geomagnetic interference

A technology of geomagnetism and state of charge, applied in electric/magnetic exploration, measuring device, measuring electricity, etc., can solve the problems of generating magnetic field, influence of geomagnetic sensor, etc.

Active Publication Date: 2020-02-14
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to propose a method and device for resisting charging geomagnetic interference, aiming to solve the problem that the smart terminal in the prior art generates a magnetic field when charging, which affects the geomagnetic sensor

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  • Method and device for resisting charging geomagnetic interference
  • Method and device for resisting charging geomagnetic interference

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Embodiment approach

[0073] As an implementation manner, the above step S30 includes:

[0074] Step S31 , judging the number of the preset plurality of sampling points.

[0075] Specifically, after reading the voltage values ​​of the preset multiple sampling points, the mobile terminal determines the number of the preset multiple sampling points.

[0076] Step S32, if the preset number of sampling points is equal to two, then calculate the corresponding voltage difference according to the voltage values ​​of the two sampling points.

[0077] Specifically, after judging the number of preset multiple sampling points, if the preset number of multiple sampling points is equal to two, the mobile terminal calculates the corresponding voltage difference according to the voltage values ​​of the two sampling points value.

[0078] Among them, if two sampling points are arranged, the optimal solution is to choose near the diagonal line of the geomagnetic chip, one of which is close to the side of the char...

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Abstract

A charging geomagnetic interference resisting method and device are provided. In the method, a current charging state of a mobile terminal is detected (S10); in a case where the current charging state is that the mobile terminal is being charged, voltage values of multiple preset sampling points (S201, S202, S203, S204) are read (S20); voltage values of two sampling points with a maximum voltage difference value are acquired according to the voltage values of the multiple preset sampling points (S201, S202, S203, S204), and a voltage difference value of the two preset sampling points is obtained by calculation (S30); a corresponding magnetic field compensation value is acquired by calculation based on the voltage difference value (S40), a current magnetic field value of the mobile terminal is read, and the current magnetic field value and the magnetic field compensation value are superimposed to acquire a corresponding actual magnetic field value (S50). With the method and the device, a problem that a magnetic field generated by an intelligent terminal in a related technology during charging affects a geomagnetic sensor is solved, magnetic field value compensation for the intelligent terminal is implemented, and the actual magnetic field value can be acquired to avoid the interference of a charging magnetic field.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a method and device for resisting charging geomagnetic interference. Background technique [0002] In the current smart terminals, geomagnetism has basically become a standard configuration, mainly used for applications such as electronic compass and auxiliary navigation. Since the geomagnetic sensor detects the magnetic field, many magnetic devices such as earpieces, speakers, motors and other devices will affect the geomagnetic sensor, which can be avoided by placing the device position, and if it cannot be avoided completely, corresponding compensation can also be carried out. In addition, since the current will generate a magnetic field, the current will also have an impact on the geomagnetic sensor. [0003] The existing technology will cause interference to the geomagnetic sensor during the charging process, and the interference results are inconsistent, and compensation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/40
CPCG01V3/40G01C17/38G01R31/364G01R31/382G01R31/3835G01R31/3842G01R31/392G01R31/69Y02E60/10Y02E60/50
Inventor 曲廷程翠香
Owner ZTE CORP