Positioning method for hazardous gas leakage diffusion accident source

A leakage diffusion and harmful gas technology, which is applied in the field of accident source location of toxic and harmful gas leakage and diffusion accidents, can solve the problems of high dependence on prior probability and difficulty in realization, and achieve the effect of reducing the amount of calculation and reducing dependence

Inactive Publication Date: 2015-08-12
SOUTH CHINA UNIV OF TECH
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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 pro...

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  • Positioning method for hazardous gas leakage diffusion accident source
  • Positioning method for hazardous gas leakage diffusion accident source
  • Positioning method for hazardous gas leakage diffusion accident source

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Embodiment Construction

[0032] The implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection of the present invention are not limited thereto.

[0033] The gas leakage and diffusion accident source location method provided by the present invention, such as figure 1 shown, including the following steps:

[0034] Step 1: Monitor sensor array deployment. Deploy the sensor array in the monitoring area, and record the geographic coordinates of each monitoring point (x G ,y G ,z G ).

[0035] The geographical coordinate system is based on the tangent plane of the average level in the monitoring area as the ground level, the horizontal plane coordinate y-axis is positive in the north direction, the horizontal plane coordinate x-axis is positive in the due east direction, and the vertical coordinate z-axis is vertical in the upward direction of the horizontal plane. Positive, take the southwest corner of t...

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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...

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Application Information

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IPC IPC(8): G01V9/00
Inventor 陈国华陈珑凯
Owner SOUTH CHINA UNIV OF TECH
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