Forest fire behavior dynamic monitoring alarm system based on infrared camera

An infrared camera and alarm system technology, applied in forest fire alarms, fire alarms, alarms, etc., can solve the problems of reduced detection ability, smoke deviating from the ignition point, etc., and achieve the effect of making up for the low detection rate

Inactive Publication Date: 2007-10-03
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Because the smoke can only be detected when the forest is burning violently; due to the spread of the smoke, the detected smoke may deviate from the fire point; moreover, the detection ability of the system will be greatly reduced at night

Method used

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  • Forest fire behavior dynamic monitoring alarm system based on infrared camera
  • Forest fire behavior dynamic monitoring alarm system based on infrared camera
  • Forest fire behavior dynamic monitoring alarm system based on infrared camera

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Embodiment Construction

[0022] A preferred embodiment of the present invention is given below in conjunction with the accompanying drawings to illustrate the structural features of the present invention, rather than to limit the scope of the present invention.

[0023] An infrared camera consists of the following parts:

[0024] 1) Infrared lens 12

[0025] The silicon infrared lens is selected, the working wavelength range is 1.8-3μm, the focal length is 150.93mm, the F number is 1.0, and the field of view is 15.2°.

[0026] 2) Detector head 13 and cloud platform 14

[0027] The detector performs photoelectric conversion on the received surface radiation. Using short-wave infrared 256-element linear InGaAs detector, the pixel size is 50μm×200μm, the spectral response range is 1.2-2.6μm, the peak response wavelength is 2.3μm, the saturated output charge is 10pC, the photoelectric response non-uniformity is ±10%, and the conversion gain 1V / pC, dark current (T=25°C) is 3000pA. The drive of the dete...

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Abstract

The present invention discloses a forest fire status monitoring system based on infrared camera. Said monitoring system includes infrared camera placed on the monitoring tower and ground monitoring centre. Said invention utilizes the infrared camera placed on the monitoring tower to make circular scan so as to obtain topographical image, then according to the difference of fire point and background radiation intensity and quantification relationship of flame temperature and radiation intensity utilizes image identification technique to attain goal of judging forest fire status.

Description

technical field [0001] The invention relates to a forest fire dynamic monitoring and alarm device. Specifically, it refers to a system that uses the infrared camera based on the ground monitoring tower as the core, and can perform real-time monitoring and alarming of the forest day and night. technical background [0002] Forests are the breathing lungs of the earth. However, forest fires are triggered every year due to natural or man-made reasons, and large areas of forests are burned. Most forest fires are caused by large-scale fires because small fires were not detected and extinguished in time. Therefore, how to timely, accurately and effectively monitor possible and existing forest fires is of great significance. [0003] With the remarkable progress of science and technology, the technology of using satellites to monitor forest fires is becoming more and more mature. However, due to the limitation of the number of satellite transits and its resolution, satellite det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B25/01G08B25/00
CPCG08B17/125G08B17/005
Inventor 毛洁娜亓洪兴于龙肖功海杨一德林莹莹潘明忠
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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