Infrared multiple-gear hand gesture recognition switch and infrared multiple-gear hand gesture recognition method

Abstract

The invention relates to an infrared multiple-gear hand gesture recognition method. The infrared multiple-gear hand gesture recognition method includes the following steps that firstly, a hand gesture recognition circuit is composed of two infrared transmitting and receiving modules and an A / D converter, the two infrared transmitting and receiving modules are arranged on a panel at intervals, the panel serves as a datum, sensing zones of the modules are divided into multiple branch zones and each branch zone represents a gear; secondly, when a finger enters a certain branch zone, a sensed output signal of one infrared transmitting and receiving module servers as a branch zone signal after undergoing A / D conversion, then the finger is waved, and the sensed output signal of the other infrared transmitting and receiving module serves as a hand gesture direction signal after undergoing A / D conversion; thirdly, a single chip microcomputer determines and displays a gear according to the branch zone signal, and controls a multipath driver according to the hand gesture direction signal. According to the infrared multiple-gear hand gesture recognition method, the two infrared transmitting and receiving modules are used for achieving multiple-gear recognition and control for the first time and erroneous judgment and disturbance due to the fact that more than one electric device is controlled in an infrared mode are eliminated. The infrared multiple-gear hand gesture recognition method can be widely applied to occasions such as kitchens, washrooms, hospitals and slaughter houses.

Description

technical field [0001] The invention relates to infrared gesture recognition technology, in particular to an infrared multi-position gesture recognition switch and a gesture recognition method. Background technique [0002] Infrared controllers are widely used in home appliances, etc. The conversion of its functions needs to press different input buttons, and then the control chip judges the button information to realize it. The operation of multiple input buttons is cumbersome. There is above-mentioned defect also in using similar infrared controller to control the multi-point lighting of home. [0003] At present, the infrared control switch using the infrared tube can only realize the on / off control (one gear). To realize the multi-level on / off control needs to be equipped with many infrared tubes. The complexity of the input circuit will increase the cost. Multiple appliances will cause misjudgment and signal interference between multiple switches. [0004] Gesture...

AI Technical Summary

Problems solved by technology

[0003] At present, the infrared control switch using the infrared tube can only realize the on / off control (one gear). To realize the multi-level on / off control needs to be equipped with many infrared tubes. The complexity of the input circuit will increase the cost. Multiple appliances will cause misjudgment and signal interference between multiple switches

[0004] Gesture recognition technology based on touch screen has been widely used in home appliances, smart phones, etc., but it needs the user to touch the screen of the device to realize it. This recognition technology is not convenient for products that do not need a screen.

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