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Binocular camera fire detection and positioning device and fire positioning method thereof

A binocular camera and fire detection technology, which is applied in fire alarms, image communications, televisions, etc., can solve problems such as the precise positioning of coordinates, and achieve the effect of simple installation and operation, simple and convenient use, and simple and convenient installation and operation

Inactive Publication Date: 2011-12-28
UNIV OF SCI & TECH OF CHINA
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

When a fire is found, look for the corresponding camera with the fire image, and determine the preset position of the flame according to the lookup table, and the precise positioning of the coordinates cannot be performed

Method used

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  • Binocular camera fire detection and positioning device and fire positioning method thereof
  • Binocular camera fire detection and positioning device and fire positioning method thereof
  • Binocular camera fire detection and positioning device and fire positioning method thereof

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Embodiment

[0031] see figure 1 , figure 2 , the specific structure of the device of this embodiment is as follows:

[0032] The binocular camera fire detection and positioning device is composed of a binocular camera unit, a binocular vertical angle adjustment device, and a binocular horizontal angle adjustment device.

[0033] The binocular camera unit includes a transparent protective casing 9, and two CCD cameras 11, a monocular horizontal angle adjustment device, a monocular translational adjustment device and an infrared distance measuring device 14 arranged in the transparent protective casing 9. The parameters of the two CCD cameras 11 are the same, and the higher the resolution of the cameras, the higher the positioning accuracy; the monocular horizontal angle adjustment device includes two high-precision stepping motors 6 with the same parameters and a step angle less than 0.01°; the monocular translational adjustment The device is composed of two tracks 17, a guide rail 7, t...

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Abstract

The invention provides a binocular shooting fire detecting and positioning device and a fire positioning method thereof. The binocular shooting fire detecting and positioning device consists of a binocular shooting unit, a binocular vertical angle adjusting device and a binocular horizontal angle adjusting device, wherein the binocular shooting unit comprises a transparent protective shell, and two cameras, a monocular translational adjusting device, a monocular horizontal angle adjusting device and an infrared distance measuring device which are arranged in the transparent protective shell. The fire positioning method based on the binocular shooting fire detecting and positioning device comprises fire detection, base line blind area detection, finding of fire source root, active focusing, acquisition of the deflection angle of a monocular camera, self-adaptive adjustment, acquisition of the deflection included angle and camera distance of the binocular shooting unit, computation of the three-dimensional coordinates of a fire source and sending of a fire extinguishing command. In the binocular shooting fire detecting and positioning device, a video fire detection function and an image type fire positioning function are integrated, so that fire can be positioned accurately and conveniently; and the binocular shooting fire detecting and positioning device is easy to install and operate. Due to the adoption of a self-adaptive adjustment design, the requirement of positioning accuracy at any place is met.

Description

Technical field: [0001] The invention relates to the technical field of fire intelligent security monitoring, in particular to the technical field of video fire detection and image-based fire positioning. Background technique: [0002] Fire location is the prerequisite for intelligent fire extinguishing. The traditional fire location method based on infrared ranging technology cannot be applied to open and tall spaces such as airports, docks, and squares, and can only measure one-dimensional distances, making it difficult to achieve three-dimensional positioning. With the application of CCD cameras and the development of video fire detection technology, an image-based fire location method based on CCD cameras has emerged. However, using a monocular camera system composed of an ordinary CCD camera for positioning can determine the coordinates in the plane perpendicular to the main optical axis, but the coordinates along the optical axis cannot be determined, so three-dimensio...

Claims

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Application Information

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IPC IPC(8): G08B17/00H04N5/232
Inventor 张永明袁伟方俊王进军
Owner UNIV OF SCI & TECH OF CHINA
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