An automatic fire fighting unit based on omnibearing visual sensor

An all-round vision and fire extinguishing device technology, applied in fire rescue and other fields, can solve problems such as high false alarm rate, inability to process in real time, complex algorithms, etc.

Inactive Publication Date: 2010-06-16
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0018] In order to overcome the shortcomings of the existing fire detection system and automatic tracking fire extinguisher that the false alarm rate is high, the early fire cannot be detected in time, the algorithm cannot be processed in real time, and the algorithm is relatively complicated, the present invention provides a fire detection system that can effectively reduce the false alarm rate and monitor the fire. Accurate source point detection and positioning, good real-time performance, can automatically control the nozzle to spray fire extinguishing agent to the flame point in the shortest time when the fire is found, the detection algorithm and control algorithm are simple, and the automatic fire extinguishing device based on the omnidirectional visual sensor

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  • An automatic fire fighting unit based on omnibearing visual sensor
  • An automatic fire fighting unit based on omnibearing visual sensor
  • An automatic fire fighting unit based on omnibearing visual sensor

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Embodiment Construction

[0133] The present invention will be further described below in conjunction with the accompanying drawings.

[0134] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , figure 1 In the omnidirectional computer vision sensor system shown, the light entering the center of the hyperboloid mirror 1 is refracted toward its virtual focal point 4 according to the specular properties of the hyperboloid. The real image 7 is reflected by the hyperboloid mirror into the condenser lens for imaging, and a flame point P1 (x*1, y*1) on the imaging plane corresponds to the coordinate A (x1, y1) of a point of the flame in space , z1).

[0135] figure 1 In 1-hyperbolic mirror, 2-incident light, 3-focus Om(0,0,c) of hyperbolic mirror, 4-virtual focus of hyperbolic mirror is camera center Oc(0,0,-c), 5-reflected light, 6-imaging plane, 7-space coordinates A(x1, y1, z1) of the real image, 8-space coordinates of the image incident on the hyperboloid mirror surfac...

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Abstract

A automatic fire unit based on comprehensive vision sensor comprising microprocessors, video frequency sensors for the surveillance, communication modules used to communicate with the outside world and firefighting nozzles, the firefighting nozzle is connected to drives, the video frequency sensor is a multi-dimensional visual sensors, dispose and analysis images, make a comprehensive judgment through the simple pattern classification, the flame area characteristics judgment, the flame physical characteristics judgment, flame color judgment, the law of flame flashing judgment, flame movement characteristics judgment and judgment of the fire intensity, automatically adjust the nozzles according to flames position and spray extinguishing agent assigned in the vicinity of the fire source. Theinvention can effectively reduce the false fire alarm rate, inspect and locate accurately, with good real-time performance and automatically control the nozzle spray fire-extinguishing agent to the flames found in the shortest time, the achieved detection and control is simple.

Description

(1) Technical field [0001] The invention relates to an automatic fire extinguishing device based on an omnidirectional visual sensor. (2) Background technology [0002] The core of automatic fire extinguishing is the early detection of fire and the determination of the flame point. The key technology is to automatically control the nozzle to align with the flame point and spray the fire extinguishing agent near the fire source according to the position of the found flame point, so as to achieve the purpose of automatic fire extinguishing. [0003] In order to detect and report fires early, and take effective measures in time to control and extinguish fires, an automatic fire-fighting facility installed in buildings or other places is currently one of the indispensable safety technology facilities for modern firefighting. Both at home and abroad attach great importance to automatic fire monitoring. At present, detecting whether a fire has occurred is mainly carried out by co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C35/00A62C37/46
Inventor 汤一平柳圣军金海明严海东
Owner ZHEJIANG UNIV OF TECH
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