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Leakage source positioning method and device based on variable step size recurrence track

A leakage source and variable step-length technology, applied in the field of positioning, can solve the problems of non-idealization and the inability to accurately locate the leakage source of hazardous gas, and achieve the effect of precise positioning.

Active Publication Date: 2019-08-09
TSINGHUA UNIV +2
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  • Application Information

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Problems solved by technology

However, hazardous chemical leakage accidents are often accompanied by explosions, combustion and complex airflows, which make the on-site environment not ideal in most cases. The source of the gas leak cannot be precisely located

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  • Leakage source positioning method and device based on variable step size recurrence track
  • Leakage source positioning method and device based on variable step size recurrence track
  • Leakage source positioning method and device based on variable step size recurrence track

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0053] It can be understood that the terms "first", "second" and the like used in this application can be used herein to describe various sequence relationships and correspondences, but these sequence relationships and correspondences are not limited by these terms. These terms are only used to distinguish one serial relationship and correspondence from another serial relationship and correspondence.

[0054] In one embodiment, such as figure 1 As shown, a leak source localization method based on recursive trajectory with variable step length is provided, which includes t...

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Abstract

The invention relates to a leakage source positioning method and device based on a variable step size recurrence track. The method comprises the following steps: constructing an objective function model associated with gas concentration information according to a preset atmospheric diffusion model; gas concentration information of the current position is monitored, and an objective function modelcalculation value of the current position is obtained according to the gas concentration information of the current position, the atmospheric diffusion model and the objective function model; gas concentration information of the next position is monitored, and an objective function model calculation value of the next position is obtained according to the gas concentration information of the next position, the atmospheric diffusion model and the objective function model; and according to the objective function model calculation value of the current position and the objective function model calculation value of the next position, the leakage source strength and the leakage source position are determined. According to the method, the leakage source strength and the leakage source position canbe obtained according to the calculated value of the objective function model, and accurate positioning of the hazardous chemical gas leakage source is achieved.

Description

technical field [0001] The present application relates to the field of positioning technology, in particular to a method and device for locating a leak source based on a variable-step recursive trajectory. Background technique [0002] Hazardous chemicals are often diffuse and toxic. Once leaked, it will cause serious property loss and casualties. After a hazardous chemical leakage accident occurs, locating the source of the hazardous chemical leakage as soon as possible is the basis for emergency response, emergency rescue, and assessment of the potential hazards of the accident. After a hazardous chemical leakage accident occurs, the source of the hazardous chemical leakage can be located according to the gas leakage in the hazardous chemical leakage accident. [0003] The traditional method of locating the leakage source of hazardous gas is to locate the leakage source of hazardous gas according to the concentration gradient and diffusion direction of the hazardous gas i...

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Application Information

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IPC IPC(8): G06F17/10G01N27/62
CPCG01N27/62G06F17/10
Inventor 郑小平李静海陈茂银张建文李辉耿华邓晓娇朱亚征
Owner TSINGHUA UNIV
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