Abstract
With the development of people's society, the chemical industry has made great progress. In the industrial structure of developed countries, the chemical industry occupies a very large proportion. At the same time, chemical production is also the weakest link in the field of safety production. Hazardous gas is the most dangerous product in the process of chemical production, which means that it is necessary to monitor and locate the dangerous gas source in real time. In recent years, with the development of wireless communication technology, wireless sensor networks (WSN) have been applied in various fields. As a short- range wireless communication technology, ZigBee is widely used in military, environmental and industrial fields because of its low cost, low power consumption and multi-function. Gas source location is a method to predict the location of gas leak points by combining gas concentration detection and gas diffusion models, can help us to warn of the leakage of dangerous gas. According to the actual demand, this paper presents a gas source location algorithm based on the ZigBee communication mode. First of all, this paper gives a brief introduction to the composition and structure of ZigBee network. Secondly, the plume model based on turbulence is discussed in detail. Thirdly, aiming at the problem of large computational complexity of traditional model, an improved particle swarm algorithm for gas source location is proposed by combining force-directed algorithm. Finally, simulation experiments show that the improved gas source localization algorithm has better results.
