An artificial olfactory gas early leakage monitoring and positioning system and method in air flight

Abstract

The invention discloses a monitoring and locating system and method for early leakage of artificial olfactory gas in air flight. An artificial olfactory system is constructed by using a high-precision gas sensor array and a pattern recognition algorithm; trace components of trace gases at the early stage of leakage are monitored and recognized in the flying process; meanwhile, parameters such as wind direction and wind speed within a target space range are monitored; and a leakage source inversion traceability locating method designed according to a leakage gas space transporting and diffusing rule is based and is combined with an unmanned flight control method, thereby realizing monitoring recognition and locating of early leakage gas. The system mainly comprises an unmanned flight control center, an attitude control and GPS locating module, an artificial olfactory system module, an atmospheric environment monitoring module, a leakage source locating module and an automatic obstacle avoidance module. The artificial olfactory system and a leakage source locating algorithm are designed. The monitoring and locating system and method disclosed by the invention have the characteristics of wide monitoring space, high monitoring precision, accurate and timely leakage early warning and locating, and the like.

Description

【Technical Field】 [0001] The invention relates to the technical field of gas detection and monitoring, in particular to an airborne artificial olfactory gas early leakage monitoring and positioning system. 【Background technique】 [0002] Chemical container piping is an important part of the industrial process, and the leakage of the container piping will not only cause loss of the production process, but also the leakage of the carrier medium will bring potentially huge harm. Dangerous gas diffusion or even explosion caused by leakage is currently one of the main causes of major casualties. Therefore, the monitoring of pipeline container leakage, especially the early leakage monitoring and identification, and accurate positioning can help reduce or avoid the risk due to leakage and reduce the damage caused by leakage. [0003] At present, the main leakage monitoring methods that have been used on chemical container pipelines are: [0004] (1) Sensing cable and optical fiber leak de...

AI Technical Summary

Problems solved by technology

This technology can monitor the leakage of the monitoring area in a large space range, but the biggest disadvantage is that a relatively reliable infrared image can only be obtained after a very obvious leakage occurs, and the leakage early warning is very lagging

[0007] (4) Single-point monitoring and early warning of leaked gas medium: The current leaked gas monitoring is based on single-point sensors based on optical, electrochemical and other principles. Although these sensors can detect the concentration signal after an obvious leak occurs, the alarm will be issued. However, due to the relatively small amount of gas produced by early leakage, it is easy to be interfered, and these traditional detection methods have the disadvantages of limited detection range, poor anti-interference ability of single-material selection sensors, and early warning lag, so it is difficult to accurately detect trace gas in early leakage. detected

For the positioning of the container storage tank area, most of the methods currently used are manual positioning with the aid of leak detection instruments, which has high efficiency and risk.

[0009] To sum up, due to the shortcomings of the current container pipeline leakage monitoring and positioning methods, there is still room for further research and development in the early stage of leakage trace gas identification and monitoring and positioning in a large space.

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