Screen control method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of intelligent terminals, and discloses a screen control method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a second sweep frequency signal received by an ultrasonic receiving end, the second sweep frequency signal being returned after an ultrasonic transmitting end encounters an obstacle after transmitting a first sweep frequency signal; within a preset time period, calculating a plurality of frequency differences between the first sweep frequency signal and the second sweep frequency signal; determining a time difference according to the plurality of frequency differences; estimating the distance between the ultrasonic transmitting end and the obstacle according to the time difference; and determining the screen state of the electronic equipment according to the distance between the ultrasonic transmitting end and the obstacle. The time difference is determined by calculating the multiple frequency differences, the distance between the ultrasonic transmitting end and the obstacle is determined according to the time difference, and therefore the screen state of the electronic equipment is determined, the phenomenon that the screen shakes and splashes nearby in the adjusting process can be avoided, and user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of intelligent terminals, in particular to a screen control method, device, electronic equipment and storage medium. Background technique [0002] With the development of smart terminal technology, smart phones are becoming more and more popular. Currently, when making a call, the smartphone can recognize whether the user's head is approaching or moving away from the mobile phone, and when it is judged to be close, the screen of the mobile phone will be turned off, and when it is judged to be far away, the screen of the mobile phone will be brightened, thereby solving the problem. Solved the false touch problem caused by the mobile phone not turning off the screen when the user approaches the mobile phone. [0003] The traditional solution is to use infrared sensors to perform accurate distance measurement to identify the distance. However, due to the popularity of full-screen mobile phones, it is d...

AI Technical Summary

Problems solved by technology

[0003] The traditional solution is to use infrared sensors to perform accurate distance measurement to identify the distance. However, due to the popularity of full-screen mobile phones, it is difficult for mobile phones to provide enough space for infrared sensors. Generally, infrared sensors have poor recognition rates and are prone to screen burn-in Phenomenon

[0004] Therefore, the ultrasonic scheme is usually used at present, and the Doppler effect is used to calculate the approach and distance of the ultrasonic wave, and the Doppler algorithm based on single frequency can only judge the speed by using the Doppler effect to judge the approach and distance, but not Accurately judge the distance, resulting in frequent flickering when the ear is shaking

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