Method and device for improving accuracy of acceleration sensor in electronic device

Abstract

The invention discloses a method and device for improving the accuracy of an acceleration sensor in an electronic device, and relates to a method for improving the accuracy of the acceleration sensor in the electronic device by eliminating shaking of the acceleration sensor. A computer system is controlled through computer program instructions to achieve the method by setting up a functional module framework, and the computer program instructions are stored in computer readable storage media. The method includes the steps of firstly, obtaining at least one set of deviation values of relative theoretical values of three shafts of the acceleration sensor in the electronic device when the electronic device is in a horizontal static state, obtaining correction values of all the shafts according to the deviation values, and correcting output of the three shafts of the acceleration sensor or a preset threshold value in the electronic device according to the corresponding correction values. Accordingly, the influences of shaking of the acceleration sensor in the electronic device on the accuracy of the acceleration sensor are basically eliminated, false triggering is greatly reduced when the acceleration sensor is broken off, and user experience is improved.

Description

technical field [0001] The invention relates to a method for improving the accuracy of an acceleration sensor in an electronic device by eliminating the vibration of the acceleration sensor. The method is completed by establishing a functional module framework and controlling a computer system by computer program instructions. These computer program instructions are stored in a computer-readable in the storage medium. Background technique [0002] The acceleration sensor can usually measure the acceleration in the directions of three mutually perpendicular axes, which are called X-axis acceleration, Y-axis acceleration and Z-axis acceleration respectively, wherein the X-axis and Y-axis are on the horizontal plane. Due to the acceleration sensor itself, each acceleration sensor has noise. With the current technical level, the noise of the acceleration sensor cannot be completely eliminated. At the same time, in the process of producing the acceleration sensor, due to differe...

AI Technical Summary

Problems solved by technology

Due to the acceleration sensor itself, each acceleration sensor has noise. With the current technical level, the noise of the acceleration sensor cannot be completely eliminated. At the same time, in the process of producing the acceleration sensor, due to different batches of acceleration sensors There are even differences between the same batch of accelerometers, so the noise of each accelerometer is different

In addition, when the acceleration sensor is integrated into an electronic device, such as a mobile phone, the environment in which it is located will also have a certain impact on the acceleration sensor. Since there are differences between each mobile phone, the acceleration rate integrated into different mobile phones The sensor will be affected to varying degrees, plus the noise of the accelerometer itself, resulting in that even if the mobile phone is in a horizontal static state, the values ​​of the three axes of the accelerometer are not maintained at the theoretical values ​​(ie X=0, Y=0, Z=9.8 ), but jitter within a range near the theoretical value, that is to say, there is a deviation in the real-time detection value of each axis of the acceleration sensor, which will affect the accuracy of the acceleration sensor in the mobile phone. Some applications that need to call the acceleration sensor, especially some applications with a relatively small acceleration threshold of the preset mobile phone, may cause false triggering of the acceleration sensor interrupt, thereby affecting the user experience of the mobile phone