Positioning method for hazardous gas leakage diffusion accident source

Abstract

The invention discloses a positioning method for a hazardous gas leakage diffusion accident source, and belongs to the technical field of public security emergency monitoring. The technical scheme employed by the invention is that a diffusion prediction model and monitoring sensor collection data are combined, and reverse calculation on gas source parameters is carried out, so that the error between a prediction model calculation value and a monitoring value can be minimized. The gas source positioning method comprises following steps: 1. monitoring the deployment of sensor arrays; 2. acquiring meteorology monitoring data; 3. establishing a standard wind direction coordinate system; 4. selecting gas concentration monitoring data; 5. performing optimal calculation on gas source position parameters; and 6. transforming gas source geographic position coordinates. By employing the gas leakage diffusion source positioning method, the regional hazardous gas leakage diffusion source can be rapidly and accurately positioned, and timely and effective decision supports can be provided for emergency response departments.

Description

technical field [0001] The invention relates to public safety emergency monitoring technology, in particular to an accident source location method for toxic and harmful gas leakage and diffusion accidents. Background technique [0002] As chemical industrial parks have become the mainstream model for the development of the petrochemical industry, a large number of hazardous chemical companies have formed a regional concentration of development, which intensifies the risk of accidents and disasters. Toxic and harmful gas leakage and diffusion accidents are one of the major types of industrial accidents and disasters. Due to the carrying and spreading of atmospheric environmental media, such accidents often affect a large area and affect a large population, posing a huge threat to public safety. [0003] How to quickly and accurately predict and estimate the location of gas leakage and diffusion sources has become a key technical issue in emergency rescue. By deploying gas se...

AI Technical Summary

Problems solved by technology

Although this method can obtain the probability distribution information of the gas source position parameters in the parameter space with a certain degree of confidence, the result is highly dependent on the prior probability, and the prior information needs to be obtained through a large amount of historical statistical data. The requirements are difficult to achieve in the case of sudden accident scenarios and rapid emergency response

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