Flying dust online detection method and system based on laser

Through the laser-based online dust detection method, the dust concentration change coefficient and the abnormal type are determined, the real-time and accuracy of dust monitoring in the existing technology are solved, real-time and continuous monitoring and early warning of dust concentration are achieved, and the reliability and efficiency of monitoring are improved.

CN119827368AActive Publication Date: 2025-04-15ZHEJIANG ENVIRONMENTAL PROTECTION GRP ECOLOGICAL ENVIRONMENTAL PROTECTION RES INST CO LTD
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Patent Information

Application Number
CN202510332657.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-04-15
Estimated Expiration
2045-03-20

AI Technical Summary

Technical Problem

The existing dust monitoring technology has the disadvantages of long sampling time, poor real-time performance, and inability to continuously monitor. It is also sensitive to environmental factors, making it difficult to accurately judge the abnormal type of dust concentration and start the early warning in a timely manner.

Method used

The laser-based online dust detection method is adopted to obtain the laser scattering signal intensity, particulate matter concentration and environmental meteorological data in the dust monitoring area, calculate the dust concentration change coefficient, and determine the abnormality type based on the set threshold and abnormal identification criteria, and start the early warning action.

Benefits of technology

Real-time and continuous monitoring of dust concentration is achieved, the accuracy and reliability of monitoring is improved, and abnormal dust concentration can be identified in a timely manner and early warning can be activated, and dust monitoring areas are dynamically managed to reduce the impact of environment and human health.

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Abstract

The invention provides a flying dust online detection method and system based on laser, and the method comprises the following steps: obtaining laser scattering signal intensity, particle concentration, wind speed, wind direction, humidity and other environmental meteorological data before and after the abnormality when the flying dust concentration of a flying dust monitoring region is monitored to be abnormal; calculating laser scattering energy and a particulate matter concentration change rate to obtain a flying dust concentration change coefficient; and judging an abnormal type according to the change coefficient and an abnormal identification criterion, and if the flying dust concentration in the region exceeds the standard, starting an early warning action to realize management of the flying dust monitoring region. According to the invention, the abnormal type of dust raising can be accurately identified, early warning is started in time, and the environment management and control capability of a dust raising monitoring area is improved.
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