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Infrared detection device for detecting human body and control method of infrared detection device

A technology of infrared detection and detection of human body, applied in the direction of optical device exploration, etc., to achieve the effect of easy implementation, reduction of electromagnetic interference and power dissipation, and simple structure

Active Publication Date: 2016-01-20
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems raised by the above-mentioned background technology, the present invention aims to provide an infrared detection device for detecting human body and its control method, which solves the problem of existing infrared detection static human body problems

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  • Infrared detection device for detecting human body and control method of infrared detection device

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Embodiment Construction

[0029] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] like figure 1 The structure diagram of the present invention is shown as an infrared detection device for detecting human body, which includes an opaque cover 1 with an open lower end, the cover is installed above the detection area, and the inside of the cover is sequentially provided with a fixing plate 2 and openings from top to bottom Baffle 4, the perforated baffle 4 has a hole and the upper surface of the perforated baffle 4 is provided with an infrared luminescent tube 3, the lower surface of the fixed plate is fixed with an infrared detector 5, and the fixed plate 2 is also A control circuit is provided, and the control circuit includes a microcontroller, a signal conditioning circuit and a driving module. like figure 2 As shown, the microcontroller is connected to the controlled device through the driving module, the micr...

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Abstract

The invention discloses an infrared detection device for detecting a human body. The infrared detection device comprises an opaque cover with an opening formed at the lower end; the cover is mounted above a detection area; a fixing plate and a trepanned baffle sequentially distributed from top to bottom are arranged in the cover; one hole is formed in the trepanned baffle; the upper surface of the trepanned baffle is provided with an infrared light emitting tube; an infrared detector is fixed to the lower surface of the fixing plate; the fixing plate is provided with a control circuit; the control circuit comprises a micro controller, a signal conditioning circuit and a driving module, wherein the micro controller is connected with a controlled device through the driving module, the micro controller is connected with the infrared detector through the signal conditioning circuit, and the micro controller is connected with the infrared light emitting tube. The invention also discloses a control method based on the above device. With the infrared detection device and the control method of the invention adopted, problems existing in static human body infrared detection can be solved.

Description

technical field [0001] The invention belongs to the field of automatic detection, and in particular relates to an infrared detection device. Background technique [0002] Infrared radiation is very common in nature. As long as any object has a temperature higher than absolute zero, it will radiate infrared rays of a specific wavelength to the surrounding environment. The pyroelectric infrared sensor is mainly composed of a detection element with a high pyroelectric coefficient. When the temperature changes, the spontaneous polarization intensity between its material plates changes to a certain extent, so that bound charges of different signs are generated at their two ends. And two detection elements are installed in each detector, and the two detection elements are connected in series with reverse polarity. The detection element converts the detected and received infrared radiation into a weak voltage signal, which is passed through the field installed in the probe. The ef...

Claims

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Application Information

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IPC IPC(8): G01V8/12
Inventor 吕富勇李鹏生唐迎川程文灿赵嘉敏
Owner NANJING UNIV OF INFORMATION SCI & TECH
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