Threshold-variable forest fire prevention thermal imaging monitoring system and method

Abstract

The invention relates to a threshold-variable forest fire prevention thermal imaging monitoring system which comprises a thermal infrared imager, a video server, a transmitting device and a monitoring center. The threshold-variable forest fire prevention thermal imaging monitoring system is characterized in that a temperature detection device used for collecting environment temperatures is further arranged in a forest area to be monitored, and the thermal infrared imager acquires the environment temperature values of the monitoring area through the temperature detection device. A monitoring method comprises the steps that firstly, unit areas are partitioned; secondly, the environment temperature values are acquired; thirdly, an alarming threshold is calculated; fourthly, the temperature values of the unit areas are calculated; fifthly, alarming information is sent out, and images are uploaded. According to the monitoring system and method, the alarming threshold is adjusted in real time according to the environment temperatures, and it is considered that the smoldering phenomenon exists in one unit area if the average temperature of the unit area exceeds the alarming threshold, so that judgment at the smoldering stage of a fire disaster is more accurate, and previous situations of error reporting are avoided.

Description

technical field [0001] The present invention relates to a forest fire prevention thermal imaging monitoring system and method, more specifically, to a forest fire prevention thermal imaging monitoring device and method that adjusts an alarm threshold in real time according to the ambient temperature of the monitoring area. Background technique [0002] With the in-depth research on forest fire prevention, infrared thermal imaging technology has gradually been widely used in the field of forest fire prevention. The images taken by infrared thermal imaging equipment reflect its temperature distribution, that is to say, the stronger the thermal radiation of an object or a part of an object, the higher its temperature; conversely, the lower the thermal radiation of an object or a part of an object, the higher its temperature lower. If the temperature changes slightly, the thermal radiation energy emitted by the object will change greatly, that is, the energy radiated from the o...

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Problems solved by technology

[0003] At present, the thermal imaging equipment used in forest fire prevention on the market usually sets a fixed threshold for the occurrence of fire, but the environment of fire in reality is often complex and changeable, such as day and night, winter and summer, sunny and rainy days, forest When a medium fire occurs, the real-time temperature difference and the alarm threshold need to be changed dynamically. Thermal imaging equipment with a fixed threshold is not conducive to accurate detection of fire conditions in miscellaneous environments, and it is prone to false fire alarms.

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