Tooth gritting signal acquisition method and control method and device for electronic device

Abstract

The invention provides a tooth gritting signal acquisition method and device and a control method and device for an electronic device. The device is convenient to carry and wear. The method includes the following steps: the step S1 of receiving a brain wave signal collected by a brain wave collecting device; the step S2 of performing Fourier transform on the brain wave signal to obtain a frequencydomain signal of the brain wave signal; the step S3 of obtaining an average value of the signal amplitude in the specific frequency range in the frequency domain signal, wherein the average value isused as a tooth gritting signal value. According to the measured effect, the algorithm can effectively and timely detect the tooth gritting action, conveniently and effectively control the triggeringof other products and liberate the hands. The device can achieve more diversified functions after integrated into the electronic device, and a user can also make a call for help and alarm and controlturning on / off of a power supply by gritting the teeth.

Description

technical field [0001] The invention relates to the field of electronic and bioelectrical information extraction, in particular to a method and device for acquiring teeth clenching signals and a control method and device for electronic equipment. Background technique [0002] In recent years, the development of electronic device control technology using human bioelectricity has provided more possibilities for liberating human hands and automatic control of electronic devices. [0003] Bioelectricity includes brain electricity (also known as brain wave), myoelectricity, etc. Traditionally, these signals can only be obtained by using huge instruments, so it is difficult to obtain large-scale applications in personal consumer electronics products. [0004] The Chinese patent No. 201220129712.X, titled "Head-mounted EEG Detector" and its series of subsequent improved patents proposed some miniaturized EEG detectors that are easy to carry and wear. The brain wave detector can a...

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Problems solved by technology

[0006] But in the prior art, the acquisition method of teeth clenching signal is not ideal yet

For example, in the patent document CN201110031304, it is to collect and process the myoelectric signal of the temporal muscle position of the head when clenching the teeth, and the acquisition electrode is relatively complicated and needs to wear a helmet or an EEG collection cap; action, but the installation position of its brain electrodes adopts the international 10-20 standard electrode system distribution, which is only suitable for use in hospitals and laboratories; in the patent document CN201811535827, it uses an electroencephalograph, which obviously cannot be portable and wear

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