Infrared detectors and infrared detecting methods

Abstract

Infrared detectors (1, 2, 3) and infrared detecting methods, the infrared detectors (1, 2, 3) comprising infrared sensors (11, 21, 311, 312) and infrared sensors (11, 21, 311) , the sensing side lens(12, 22, 321, 322) of 312), and the blocking piece (13, 23, 33) disposed outside the sensing side of the lens (12, 22, 321, 322), in the block The flap (13, 23, 33) sweeps over and blocks the portionof the infrared sensor (11, 21, 311, 312) during relative movement of the sheet (13, 23, 33) and the infrared sensor (11, 21, 311, 312) Lens (12, 22, 321, 322) pixels. Using the infrared detectors (1,2, 3) and the infrared detection method, the pixels of the lens (12, 22, 321, 322) divide the detection area into different sensing areas outside the lens (12, 22, 321, 322). A baffle (13, 23, 33) capable of moving relative to the infrared sensor (11, 21, 311, 312) is added so that the same sensing area can receive infrared signals at different times, whereby the stationary human body is at different times It is mobile for the infrared sensor (11, 21, 311, 312), so that it can effectively detect whether the detection area has a stationary person, false detection or low detection rate; and infrared detector (1, 2, 3) The structure is simple and does not affect the normal use of the infrared sensor (11, 21, 311, 312) and the lens (12, 22, 321, 322).

Description

technical field [0001] The invention relates to the field of detectors, in particular to an infrared detector and an infrared detection method. Background technique [0002] At present, in the field of infrared detection, pyroelectric infrared probes cannot identify stationary human bodies. Therefore, if this kind of probe is used in actual detection, it is easy to ignore stationary human bodies, resulting in missed or false detections. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an infrared detector and an infrared detection method for the defect that it is difficult to detect a stationary human body in the prior art. [0004] The technical solution adopted by the present invention to solve the technical problem is: provide an infrared detector, including an infrared sensor and a lens arranged on the sensing side of the infrared sensor, and the infrared detector also includes an infrared detector arranged on...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of infrared detection, pyroelectric infrared probes cannot identify stationary human bodies. Therefore, if such probes are used in actual detection, it is easy to ignore stationary human bodies, resulting in missed or false detections.

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