Range hood gesture recognition method and device

A gesture recognition and range hood technology, which is used in the removal of oil fume, heating mode, mechanical mode conversion, etc., can solve problems such as poor anti-interference, inability to adapt to models and people, and easy signal crosstalk.

Pending Publication Date: 2020-01-17
VATTI CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this algorithm is that the distance between the AB probes must be greater than a certain value (the width of the palm of a person is about 13cm) in order to achieve a high recognition rate, which makes it unable to adapt to various types of hoods and people.
The disadvantage of this algorithm is that the AB probe cannot distinguish whether the received data comes from A or B, the signal is prone to crosstalk, and the anti-interference performance is poor

Method used

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  • Range hood gesture recognition method and device
  • Range hood gesture recognition method and device
  • Range hood gesture recognition method and device

Examples

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Please refer to figure 1 , a range hood gesture recognition method, the method comprising:

[0040] S100: Periodically encode the preset infrared signal according to an encoding method and time sequence;

[0041] In this example, refer to image 3 , each frame of data code encoded by the probe AB using the preset encoding method is composed of frame header, sequence, data and checksum, wherein each data byte has its own checksum function, and the odd and even bits are reversed, for example: 01010101b and 01100110b, it should be noted that the check byte is the sum of data 0 to data N, and the sequence SN is incremented by 1 every time a data frame is sent.

[0042] S200: Send the preset infrared signal according to the timing cycle, the preset infrare...

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Abstract

The technical scheme of the invention discloses a range hood gesture recognition method. The range hood gesture recognition method comprises the following steps: S1, encoding a preset infrared signalaccording to an encoding mode and a preset time sequence period; S2, sending the preset infrared signal according to the time sequence period, wherein the preset infrared signal carries an anti-interference algorithm and time sequence period information; S3, receiving and analyzing the preset infrared signal, and obtaining a gesture state by identifying the time sequence period information; and S4, receiving the preset infrared signal, and judging the gesture direction by identifying the time sequence of the preset infrared signal. By means of the range hood gesture recognition method, the requirement for the AB probe distance can be reduced, and the anti-jamming capability of gesture recognition can be improved, and the success rate of gesture recognition can be increased.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a gesture recognition method and device for range hoods. Background technique [0002] Range hoods generally use two infrared sensing devices AB to realize the judgment of gesture recognition. The infrared sensing device has the function of sending infrared signals and receiving infrared signals. The current common algorithm is that the sending end of AB continuously sends a set of fixed infrared pulse codes at the same time. The data signal is used to identify the direction of the gesture through the timing of the reflected pulses received by the receiving end of AB (for example: A receives the signal within a certain period of time, and then B receives the signal, it is swaying to the left; otherwise, B receives the signal within a certain period of time If the signal is received, and then A receives the signal, it will wave to the left; if A and B receive the signal at the same time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01F24C15/20
CPCG06F3/017F24C15/2021
Inventor 严起麦明就罗钊明潘叶江
Owner VATTI CORP LTD
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