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Three-dimensional reconstruction method for indoor toxic and harmful gas concentration

A harmful gas and three-dimensional reconstruction technology, which is applied in the analysis of gas mixture, 3D modeling, image data processing, etc., can solve the problems of poor reconstruction effect of three-dimensional spatial concentration distribution and unstable reconstruction results, etc.

Pending Publication Date: 2021-01-12
陈雨轩
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Problems solved by technology

[0004] The purpose of the present invention is to provide a three-dimensional reconstruction method of indoor toxic and harmful gas concentration, so as to overcome the problems of poor three-dimensional spatial concentration distribution reconstruction effect and unstable reconstruction results caused by existing reconstruction methods

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  • Three-dimensional reconstruction method for indoor toxic and harmful gas concentration
  • Three-dimensional reconstruction method for indoor toxic and harmful gas concentration
  • Three-dimensional reconstruction method for indoor toxic and harmful gas concentration

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Embodiment Construction

[0032]A three-dimensional reconstruction method of indoor toxic and harmful gas concentration according to the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0033] The implementation steps of a three-dimensional reconstruction method for indoor toxic and harmful gas concentration include: monitoring point data collection, identification of abnormal data, discretization of the measured area, two-dimensional horizontal reconstruction, and three-dimensional space reconstruction. Its specific implementation is as figure 1 Shown:

[0034] step1: Monitoring point data collection, the implementation plan is as follows:

[0035] A1: Install no less than four toxic and harmful gas detection devices in a rectangular shape on the roof of the indoor space, and mark the locations of the detection devices A, B, C, and D;

[0036] A2: Measure the distance L between point A and point B where the detection device ...

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Abstract

The invention provides a three-dimensional reconstruction method for indoor toxic and harmful gas concentration based on basic theories of geometric mathematics, optical physics and molecular chemistry. The method mainly comprises the steps of collecting monitoring point data, identifying abnormal data, discretizing a measured area, performing two-dimensional horizontal reconstruction and performing three-dimensional space reconstruction. At least four poisonous and harmful gas detection devices are installed on an indoor top plate, and monitoring point data of the poisonous and harmful gas detection devices are collected; a space coordinate system of the measured area is built; the measured area is divided into a vertex, a side boundary, a plane area and a space area; the measured area isuniformly discretized; a weight vector and a gas concentration vector are constructed by discretizing the number of grids, and two-dimensional reconstruction on the gas concentration of the measuredarea is carried out; a concentration coefficient function is constructed, a three-dimensional gas concentration map in a three-dimensional space is accurately reconstructed, and the method can be widely applied to three-dimensional online monitoring of indoor space gas distribution.

Description

technical field [0001] The invention relates to a three-dimensional reconstruction method of indoor toxic and harmful gas concentration, belongs to the field of toxic and harmful gas measurement, and relates to sensor detection technology, two-dimensional or three-dimensional reconstruction technology of the concentration of toxic and harmful gas components in space. Background technique [0002] In spatial gas concentration reconstruction, the measured area is usually discretized into a certain number of grids, and the gas parameters of the measured gas in each grid, such as temperature, composition, pressure, etc. The physical information is the unknown concentration to be solved for. In order to realize the measurement of two-dimensional or three-dimensional distribution information of the measured area, the method of multi-sensor arrangement in the measured area is adopted to average the detection data of the measured area to estimate the gas concentration in the area. ...

Claims

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Application Information

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IPC IPC(8): G06T17/00G01N33/00
CPCG06T17/00G01N33/0004
Inventor 陈雨轩
Owner 陈雨轩
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