Infrared gesture recognition device and recognition method

Abstract

The invention relates to an infrared gesture recognition device and a recognition method. The infrared gesture recognition device comprises an infrared receiving tube, an infrared compensation tube, adriving module, a control module and a plurality of infrared emission tubes which are integrated on a PCB, wherein the infrared receiving tube, the infrared emission tubes and the infrared compensation tube are respectively arranged on the back of the PCB; open holes are formed in positions corresponding to the infrared receiving tube and the infrared emission tubes on the PCB and are used for emitting and receiving infrared ray from the front of the PCB; the infrared compensation tube is used for emitting infrared ray into the PCB. Compared with the prior art, infrared emission units and aninfrared compensation unit of the device adopt proportional circuits based on mirror current sources, so that the current in the device has certain self-regulation capability and good constant-currentcharacteristic, and the device has high temperature stability; meanwhile, compared with the prior art, the device is capable of removing the interference of the background environment light and solves the disadvantage that the infrared gesture module is influenced by the environment light at present; the reliability and the stability are improved.

Description

technical field [0001] The invention relates to the technical field of gesture recognition, in particular to an infrared gesture recognition device and a recognition method. Background technique [0002] In the environment where the Internet of Things + mobile terminal + computer terminal applications are mature, there are more and more demands for intelligent equipment applications, and the interaction methods between users and intelligent equipment are becoming more and more diverse. From the original mechanical button interaction, touch screen interaction, and further develop into simpler and more convenient interaction methods such as gesture interaction and voice interaction. Among them, gesture interaction is more in line with people's daily operating habits. The technology that can control the device with a swipe or wave of the hand is favored by people, and it is also the mainstream technology in the intelligent interactive system market. Under such a force, various...

AI Technical Summary

Problems solved by technology

However, the functions realized are simple, and the requirements for the surface structure of the product are high, the size is large, and the sensing distance is short. Basically, the user's fingers need to touch the display screen to sense, which is difficult to meet the needs of gesture sensing.

[0005] 3. Infrared reflection reception recognition processing scheme, infrared gesture recognition technology has been used in related fields, among which it is widely used in the home appliance industry, but users generally report shortcomings such as high failure rate, short recognition distance, and few gesture recognition

[0006] Infrared control products on the market are mainly in the form of one sending and one receiving pair of tubes. One infrared emitting tube corresponds to one infrared receiving tube to achieve control. In order to realize the function, it is necessary to install multiple pairs of sending and receiving pairs of tubes, resulting in the disadvantage of large size, and In an environment with strong ambient light intensity, the receiving tube is easy to saturate, resulting in false triggering or failure.

The solution has weak anti-interference ability and is easily affected by other factors, such as temperature

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