Human body detection method and device in space

Abstract

The invention relates to a human body detection method and device in a space. The space is provided with an entrance and exit; including: setting a first detection area at a position close to the entrance and exit; the first detection area includes at least one first sub-detection area, and each first The sub-detection area corresponds to a first sub-detection unit; it is judged whether the first sub-detection unit generates a first detection signal; if so, the movement direction of the human body is judged according to the first detection signal. By implementing the detection method of the invention, the human body presence sensing is realized, and the movement direction of the human body can be accurately judged.

Description

technical field [0001] The present invention relates to the technical field of human body detection, and more specifically, to a method and device for human body detection in space. Background technique [0002] At present, the detection of the human body can use the traditional pyroelectric infrared sensor to detect the human body moving in the designated area, or use the microwave pyroelectric infrared sensor to detect the human body moving in the designated area, or use the infrared pair tube to detect the human body in the designated area. Detecting human activities inside. [0003] However, the traditional pyroelectric infrared sensor detection cannot detect the direction of human body movement; and the pyroelectric infrared sensor only generates signal output to the human body with a low movement frequency (0.1Hz-10Hz), and has no response to human activities with a movement frequency exceeding 10Hz output. [0004] The microwave pyroelectric infrared sensor only res...

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Problems solved by technology

[0003] However, the traditional pyroelectric infrared sensor detection cannot detect the direction of human body movement; and the pyroelectric infrared sensor only generates signal output to the human body with a low movement frequency (0.1Hz-10Hz), and has no response to human activities with a movement frequency exceeding 10Hz output

[0004] The microwave pyroelectric infrared sensor only responds to the moving human body, has no response output to the stationary human body, and cannot detect the direction of human body movement; and the microwave pyroelectric infrared sensor itself generates electromagnetic radiation, which is easily affected by external electromagnetic radiation. Signal interference, limited detection accuracy

[0005] The monitoring distance of the infrared tube is limited (generally less than 50 cm), and it is a single light point detection, and the monitoring angle is small (only the position directly in front of the probe has a response output)

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