Laser radar device and smoke and fire monitoring system and method

Abstract

The invention discloses a laser radar device and a smoke and fire monitoring system and method. The method comprises the steps that a laser device transmits a laser beam used for scanning; after an optical transmitting device performs beam expansion and collimation on the laser beam, an optical signal is generated and sent out; the optical signal generates echo signals after entering the atmosphere; an optical receiving device converges the echo signals and sends the echo signals to the detector; the detector receives the echo signals and converts the echo signals into electronic signals, andthen the electronic signals are output; a collection module receives the electronic signals output by the detector; and the electronic signals are converted into digital values in an image recognitionmode or a signal processing mode, and the digital values are recorded. Through the method, accurate measurement of smoke can be realized, and segment-by-segment information of smoke concentration distribution in a whole detection path can be effectively obtained; the method has the advantages of being round-the-clock and without the need for manual attendance and can be used for monitoring a forest, a prairie and other environments in real time; and in case of a fire, the fire can be displayed at first time, and firefighters can be reminded of fire extinguishment, so that a huge loss is avoided.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to a laser radar device, a pyrotechnic monitoring system and a method. Background technique [0002] Due to the suddenness of fire, the randomness of disaster occurrence, and the characteristics of causing huge losses in a short period of time. Therefore, once a fire occurs, rescue measures must be taken at an extremely fast speed. The timeliness and accuracy of the rescue mostly depend on whether the fire is discovered in time, whether the analysis is accurate and reasonable, and whether the decision-making measures are appropriate. So how to improve the modernization level of fire protection and minimize the losses caused by fire is an urgent need to be solved. [0003] At present, fireworks monitoring methods include video monitoring, ground patrol and satellite remote sensing. Video monitoring is to use a telephoto lens with a low-light camera to obtain images, and identify...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a laser radar device, a pyrotechnic monitoring system and a method, which changes passive detection into active detection, and solves problems such as inaccurate detection, short detection distance, need for multiple locations, small detection range, and untimely detection.

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