Smoke thermal imaging fire automatic positioning detection system and method

Abstract

The invention provides a smoke thermal imaging fire automatic positioning detection system and method. All photoelectric smoke detectors are encoded through an encoder, the position serial number of each detector is made to correspond to a thermal imaging view field, and thus the specific position of a fire can be determined. A thermal imager is used for monitoring the field, the fire behavior can be discovered earlier compared with a common video detector, and the system and method are particularly suitable for hazardous places such as aircraft cargo spaces, nuclear power stations and high voltage transformer substations where people cannot enter easily. When a smoke alarm gives out a fire alarm, at the moment, if no excessive heat video areas are captured by the thermal imager, the fire alarm can be removed, and accordingly loss caused by a fake fire alarm can be lowered. The multi-working mode and multi-interface design is adopted, the practicability can be improved, and equipment transformation in the later period is facilitated. Smoke signal detection and thermal image detection are combined, an intelligent information processing method is used for detecting and positioning fires, and accordingly the intelligence of fire fighting equipment is promoted. The place where the smoke alarm has already been mounted can be upgraded and reconstructed, and the robustness of a detection result can also be improved.

Description

technical field [0001] The invention relates to the technical field of fire intelligent security monitoring, in particular to the technical fields of fire smoke detection, image-based fire detection algorithm research, and fire monitoring in dangerous areas, and in particular to a smoke thermal imaging fire automatic positioning detection system and method. Background technique [0002] When most fires occur, a large amount of smoke will be released. Smoke particles are one of the important early features of fires, so smoke detection can detect fires earlier. Smoke and fire alarms are now widely used in aircraft cabins, entertainment venues, server rooms, substations and other places. In order to ensure safety, in dangerous places, the sensitivity of the alarm is usually high, and most of the fire alarm signals are false fire alarm signals. For places such as server rooms, if a fire alarm signal is issued, relevant personnel only need to go to the scene to check and take co...

AI Technical Summary

Problems solved by technology

[0005] The "smoke detector with image monitoring function (CN01233983)" published in the patent application integrates the smoke sensing device and the camera, and further confirms the fire situation through the camera when the fire alarm is known, or observes the image information on the scene, and more Quickly make decisions and deploy rescue, but the effective monitoring range of smoke detectors is quite different from the monitoring range of cameras. If there are few devices installed, smoke detection cannot be carried out effectively. If more cameras are installed, resources will be wasted. increase construction cost

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