Fire warning method, device and computer readable storage medium

Abstract

Embodiments of the invention relate to the field of intelligent security, and disclose a fire pre-warning method and device and a computer readable storage medium. The fire pre-warning method comprises the following steps of: obtaining a feature image for representing the temperature a monitor area, wherein the monitor area comprises fire and electricity utilization area and a non-fire and electricity utilization area except the fire and electricity utilization area; dividing the feature image into a first feature image for representing the temperature of the non-fire and electricity utilization area and a second feature image for representing the temperature of the fire and electricity utilization area; obtaining a background value for representing the temperature of the non-fire and electricity utilization area in the first feature image; intermittently obtaining a feature value for representing the temperature of the fire and electricity utilization area in the second feature imageby taking a preset time length as an interval; and obtaining an alarm level according to the feature value and the background value and sending alarm information when the alarm level is greater than apreset alarm level. The fire pre-warning method and device and the computer readable storage medium provided by the invention can carrying out pre-warning in time, and is low in cost and suitable forany scene.

Description

technical field [0001] The embodiments of the present invention relate to the field of intelligent security, and in particular to a fire early warning method, device and computer-readable storage medium. Background technique [0002] Indoor fires will cause huge losses of people and property, especially in densely populated areas, where fire losses caused by improper use of fire or electricity are more prominent. Although warehouses and storage areas are usually equipped with fire alarm systems and fire-fighting systems, these systems will only start to function after a fire is triggered. However, my country's fire-fighting policy is "prevention first, combining prevention and fire prevention", combining fire prevention with fire fighting Combining fires, in firefighting work, fire prevention should be given top priority, and efforts should be made to prevent fires from happening. According to the change characteristics of indoor fire temperature over time, the initial stage...

AI Technical Summary

Problems solved by technology

[0003] The inventors have found that at least the following problems exist in the prior art: In the scheme of using the smoke concentration after a fire as an alarm condition, because there is no sufficient concentration of smoke in the early stage of the fire, it is impossible to give a timely warning; in the scheme of using an infrared thermal imaging camera , the infrared thermal imaging array, the core component of the thermal imaging camera, is expensive due to the high cost of materials and complex manufacturing process, which makes the cost of the whole machine high, and compared with the surveillance camera, the service life of the thermal imaging camera is relatively short; using computer vision to detect smoke In the scheme, due to the imaging characteristics of the smoke itself, it is difficult to accurately extract the shape and color, so the detection of smoke has always been a difficult problem in this field, and it is very difficult for a fire to occur at night or when the light conditions are not ideal. It is difficult to detect smoke. In addition, it is also necessary to consider that objects that are on fire cannot be occluded

Similarly, detecting flames is also technically difficult. Therefore, limited by technical conditions, the scheme of using computer vision technology to detect smoke has higher requirements on the surrounding environment, and the applicable scenarios are limited.

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