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Method and electronic apparatus for compensating acceleration sensor

一种加速度传感器、加速度值的技术，应用在使用惯性力进行加速度测量、测量加速度、多维加速度测量等方向，能够解决不适用、不能测量重力加速度等问题，达到节省能量、精确测量的效果

Active Publication Date: 2017-03-01
ROBERT BOSCH GMBH
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Problems solved by technology

[0003] But this method is not suitable for calibrating the acceleration sensor in the portable instrument by measuring the acceleration of gravity in the stationary state or "1g" state of the portable instrument, because there is no ), it is also necessary to distinguish the stationary state from "free fall", since in "free fall" the acceleration due to gravity cannot be measured only by the acceleration sensor

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  • Method and electronic apparatus for compensating acceleration sensor
  • Method and electronic apparatus for compensating acceleration sensor
  • Method and electronic apparatus for compensating acceleration sensor

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Embodiment Construction

[0020] exist figure 1 A schematic diagram of an electronic device 31 with an acceleration sensor 30 is shown in , in which the method for compensating the acceleration sensor 30 according to the exemplary first embodiment of the invention is carried out. The electronic device 31 includes in particular a mobile portable device, such as a mobile phone. The electronic device 31 has at least one acceleration sensor 30 and an evaluation unit 32 . The acceleration sensor 30 comprises a micromechanical 3-channel acceleration sensor which is sensitive with respect to three spatial directions X, Y, Z, ie measures acceleration along each of the three spatial directions X, Y, Z. Acceleration measured along each of the three spatial directions X, Y, Z in an acceleration value of 1 X ,1 Y ,1 Z and is passed on to the evaluation unit 32 sorted according to the respective spatial directions X, Y, Z. The evaluation unit 32 uses the acceleration value 1 X ,1 Y ,1 Z It detects whether t...

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Abstract

The invention proposes a method for compensating an acceleration sensor, wherein in a first method step an acceleration value is determined according to three spatial directions, and in a second method step for each of the three spatial directions the acceleration value is determined Generate comparison values ​​and in a third method step each comparison value is compared with a first threshold value, and in a fourth method step a sum value is calculated from at least one acceleration value in each of the three spatial directions, wherein In a fifth method step the sum value is compared with a second threshold value, and when in a third method step for each of the three spatial directions the comparison value is less than the threshold value and when in a fifth method step the sum If the value is greater than the second threshold value, a compensation of the acceleration sensor is carried out in a sixth method step.

Description

technical field [0001] The invention relates to a method for compensating an acceleration sensor and an electronic device. Background technique [0002] Such methods are generally known. A method for calibrating a rotational rate sensor is known, for example from DE 10 2007 002 835 A1, in which method the inclination information of the acceleration sensor is used for calibration. Furthermore, as soon as the rest position is detected, the acceleration sensor sends a zero signal to the yaw rate sensor which initiates the calibration, so that the yaw rate sensor calibration is always performed only in the rest position. [0003] But this method is not suitable for calibrating the acceleration sensor in the portable instrument by measuring the acceleration of gravity in the stationary state or "1g" state of the portable instrument, because there is no ), it is also necessary to distinguish the stationary state from "free fall", since in "free fall" the acceleration due to grav...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/00G01P15/18
CPCG01P15/18G01P21/00G01P15/00
Inventor J·巴托洛迈奇克S·沙伊尔曼
Owner ROBERT BOSCH GMBH
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