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Infrared detector

An infrared detector and detection surface technology, applied in the field of detectors, can solve the problems of high processing cost, waste of energy, short detection distance, etc., and achieve the effects of low processing cost, simple structure and convenient maintenance

Inactive Publication Date: 2013-04-24
天津市泽尔数控机床成套有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some use arc-shaped Fresnel lenses. This kind of lens will detect a large area, which wastes a lot of energy, and the detection distance is relatively short, and it is difficult to manufacture, requires high precision, and the processing cost is extremely high. for large-scale promotion

Method used

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Embodiment Construction

[0015] Such as figure 1 , 2 As shown, the present invention includes a mirror 1, a sensor 2, a microprocessor 3, and an audible and visual alarm 4. The mirror surface of the reflecting mirror 1 is a parabolic detection surface. The detection surface is stepped. The detection surface of each step corresponds to a detectable area. The distance and range of the detection area are determined according to the angle of the detection surface. Since the detection surface is stepped, the area corresponding to each detection surface is divided into a detectable area and an undetectable area, so that the detector does not have to detect all the detection areas, which greatly saves energy. The sensor 2 is located at the focal point of the reflector 1 and is used to receive the light signal of the reflector 1. The sensor 2 may be a pyrolytic sensor. The microprocessor 3 converts the optical signal into an electrical signal, and sends it to the sound and light alarm device 4 to issue an alar...

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Abstract

The invention provides an infrared detector which comprises a reflecting mirror, a sensor, a microprocessor and a sound-light warning device. The reflecting mirror reflects infrared light and focuses the infrared light on the surface of the sensor. The sensor is connected with the microprocessor which is provided with a sound-light signal processing unit. The microprocessor transmits processed signals to the sound-light warning device. Compared with a common infrared detector, the infrared detector has accurate and strong detection and anti-interference capacity, enlarges monitoring range of the detector, and lowers energy consumption of infrared detection.

Description

Technical field [0001] The invention belongs to the field of detectors, and particularly relates to an infrared detector for security. Background technique [0002] At present, people attach great importance to the safety of hotels and guesthouses, and infrared detection and monitoring technology has been widely used in anti-theft systems in hotels and guesthouses. In the existing infrared detectors, infrared lenses are commonly used, and their vertical detection range is actually only a small range, generally only about 26 degrees, so there will be a detection blind zone, which cannot achieve the purpose of omnidirectional detection. Some use arc-shaped Fresnel lens, which will detect a large area, waste a lot of energy, and the detection distance is relatively short, and its production is difficult, the precision is very high, and the processing cost is extremely high. Carry out large-scale promotion and use. Summary of the invention [0003] The problem to be solved by the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/10
Inventor 吴建民
Owner 天津市泽尔数控机床成套有限公司