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Human body detector and human body detection method

A detector and human body technology, applied in the field of sensing and detection, can solve problems such as the lack of popularization of sensors and affect the detection results, and achieve the effects of reducing complex steps, improving efficiency, and stabilizing output

Active Publication Date: 2019-08-02
SHENZHEN MERRYTEK TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But trusted sensors that can capture this data are barely widespread
[0006] All in all, the current detection technology for human presence is mainly based on the recognition of human body movement and / or image data, which is easily disturbed by various environmental factors and affects the detection results

Method used

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  • Human body detector and human body detection method

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Embodiment Construction

[0082] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0083] Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention...

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Abstract

A human body detector includes a microwave generator (10), a microwave receiver (20), a mixing detector (30) and a signal processor (40), wherein the microwave generator (10) is configured to A probemicrowave propagating in a sounding space is emitted, wherein the microwave receiver (20) is configured to receive a corresponding echo of the probe microwave, wherein the mixing detector (30) is coupled to the microwave generator (10) and the microwave receiver ( 20), and is configured to perform mixing detection on the probe microwave and the corresponding echo to output a corresponding primarydetection wave signal, wherein the signal processor (40) is connected to the mixing detector (30) and is set In order to be able to select and amplify the primary detection wave signal outputted by the mixing detector (30) to output a secondary detection wave signal of a specific fluctuation frequency range, the human body detector responds to the action of the action frequency in a specific frequency range. It is amplified so that the presence of the human body can be judged in response to the action of a specific frequency range.

Description

technical field [0001] The invention relates to the field of sensing and detection, in particular to a human body presence detector and detection method for detecting whether a human body exists in a detection space by using the microwave Doppler effect principle. Background technique [0002] There are two main types of existing human body detection or detection technologies: video image recognition and detection technology and pyroelectric imaging and detection technology based on thermal infrared. Video-based image recognition technology mainly uses image processing techniques, such as frame difference method, background subtraction or optical flow method, and uses the color and outline of the human body to identify the human body in the video image and detect the movement of the recognized human body. . Visible light-based video recognition technology is widely used in photography, autonomous driving, robotics, medicine, security and other fields. However, video recogn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/56A61B5/08A61B5/024
CPCA61B5/024A61B5/0507A61B5/1135A61B5/113A61B5/1114G01S13/02A61B5/7225G01S7/415G01S13/56A61B5/1102F24F11/30F24F2120/10G01J5/0025G01S13/581G06V40/103A61B5/0205A61B2562/0228
Inventor 邹高迪邹明志
Owner SHENZHEN MERRYTEK TECHNOLOGY CO LTD
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