Calibration method, device and storage medium of distance sensor

Abstract

The invention relates to a distance sensor calibration method and apparatus, and a storage medium. The method includes that in a plurality of calls of a mobile terminal, monitoring whether the screen of the mobile terminal has a specified state during each call, so as to obtain the number of the calls having the specified state appeared on the screen of the mobile terminal in the plurality of calls of the mobile terminal; one call is defined by the process from call incoming to hanging up; determining whether a distance sensor needs to be calibrated according to the number of the calls; and performing the calibration operation of the distance sensor on the mobile terminal when it is determined that the distance sensor needs to be calibrated. By monitoring the screen state of the mobile terminal, the identification of ground noise of the distance sensor can be realized, and the calibration of the distance sensor can be carried out when the distance sensor is abnormal.

Description

technical field [0001] The present disclosure relates to the field of mobile terminals, and in particular to a distance sensor calibration method, device and storage medium. Background technique [0002] With the rapid development of mobile terminal applications, smart mobile devices have more and more functions. For the sake of improving the operation convenience of smart mobile devices and saving power, for example, smart phones generally have a distance sensor. The principle of the distance sensor is to judge the distance between the user and the mobile phone screen by detecting the reflected amount of the emitted infrared signal. This in turn adjusts the brightness without manual user control. [0003] Since the mobile phone screen glass on the upper layer of the sensor and the surrounding structure will produce reflections, the distance sensor will also receive a certain return signal when there is no obstruction on the surface of the mobile phone, which is called the ...

AI Technical Summary

Problems solved by technology

However, because the user may drop or bump the phone during use, the structure around the distance sensor may change, the sensor itself may also shift, and debris may enter between the sensor and the upper glass, and the surface glass of the phone may There will be oil stains, etc., which will cause the noise floor of the sensor to change. When the change reaches a certain level, the distance sensor will not work normally.

Images