Control method and apparatus of passive infrared detector

A technology of infrared detector and control method, which is applied to measurement devices, optical device exploration, electrical radiation detectors, etc., can solve the problems of long interval time, low detection sensitivity, high detection power consumption, etc., and achieve the effect of reducing energy consumption

Active Publication Date: 2018-01-26
SHENZHEN WATER WORLD INFORMATION CO LTD
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  • Abstract
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Problems solved by technology

The infrared detector is also turned on and off for a fixed period of time. If the interval is too long, the detection sensitivity will be too low; if the interval is too short, the power consumption of the detection will be too large.

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  • Control method and apparatus of passive infrared detector
  • Control method and apparatus of passive infrared detector
  • Control method and apparatus of passive infrared detector

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Embodiment Construction

[0043] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0044] Reference figure 1 , The embodiment of the present invention provides a control method of a passive infrared detector, which includes the steps:

[0045] S1. Determine whether there are people in the detection area of ​​the passive infrared detector.

[0046] In this step, the above passive infrared detector is a device that passively receives infrared radiation. When an animal or human moves in its detection area, it will generate a corresponding signal according to the change in the absorbed infrared radiation, and then determine its Whether there are animals or people in the detection area. The above detection area is the effective detection area of ​​the passive infrared detector.

[0047] S2. If it is determined that there is a person, adjust the detection frequency of the passive infrared detector accordin...

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Abstract

The invention discloses a control method and apparatus of a passive infrared detector. The method comprises the following steps that: whether a person exists in the detection area of the passive infrared detector is judged; if it is judged that a person exists in the detection area, the detection frequency of the passive infrared detector is adjusted according to the status of the person approaching or leaving the passive infrared detector; and if it is judged that no one exists in the detection area, a preset dormancy detection frequency is executed. According to the control method and apparatus of the passive infrared detector of the invention, whether a person exists in the detection area of the passive infrared detector is judged; whether the person approaches or leaves the passive infrared detector is judged; the detection frequency of the passive infrared detector is adjusted; when the person leaves the passive infrared detector, the detection frequency of the passive infrared detector is controlled to be reduced, and therefore, the energy consumption of the passive infrared detector can be reduced.

Description

Technical field [0001] The invention relates to the field of passive infrared detectors, in particular to a control method and device for passive infrared detectors. Background technique [0002] Passive infrared detectors generate corresponding signals by passively absorbing heat energy from the changes in the infrared heat emitted by the animal's body when they are moving. They are also called pyro-infrared detectors. The detector itself does not emit infrared rays. With the development of electronic technology, various smart terminals continue to reproduce, such as smart door locks, smart controllers, etc. These smart terminals have one thing in common. They use dry batteries or lithium batteries for power supply. Therefore, it is necessary to reduce the energy of smart terminals as much as possible. Consumption. Therefore, the above-mentioned smart terminal is generally provided with a passive infrared detector, and the smart terminal is turned on when the infrared detector ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01J5/34G01V8/10
Inventor 周毕兴
Owner SHENZHEN WATER WORLD INFORMATION CO LTD
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