Smart power plant wireless information monitoring system and method based on sound communication

Abstract

The invention discloses a smart power plant wireless information monitoring system and method based on sound communication and relates to the technical field of a wireless sensor network and an internet of things. The method is characterized in that wireless data transmission is realized based on sound technology, and a 16-22kHz sound frequency band is divided into 6 communication channels, and sound radio communication at the rate of 600bit / s within a visual range of 20 meters is realized through a mode of combination of linear frequency modulation and amplitude-shift keying (ASK); nodes form a wireless network through an aggregation node, and data is sent to a server through the wireless network according to a time division multiple access (TDMA) mode; the aggregation node periodically inspects each node in the network to add new nodes and remove failure nodes in time; each node obtains local ID and TDMA time sequence through the aggregation node; each node carries out clock synchronization and ranging through the TPSN principle, and carries out optimal routing protocol planning according to channel status and distance information; sensor informant is sent to the server through the wireless network; and the server carries out data display on each node.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks and the Internet of Things, in particular to a wireless information monitoring system and method for smart power plants based on acoustic communication. Background technique [0002] The Internet of Things digitally describes the physical world through sensing technology, and uses wireless networks to transmit and process information. It has breakthrough application examples in many fields such as environmental monitoring, rail transit, medical care, and industrial production. In order to improve the safety of production and operation of power plants, real-time monitoring of equipment parameters and environmental parameters through the Internet of Things monitoring platform is the application of Internet of Things technology in the power plant environment, and it is also an important practice of smart power plants and Industry 4.0. At present, the industrial data collection of mos...

AI Technical Summary

Problems solved by technology

However, there is incompatibility between wireless communication technology and power plant environment, and there is mutual coupling interference, which is due to:

[0004] (1) The interference of strong electromagnetic radiation in the power plant environment on wireless communication makes the data transmission link based on wireless communication less reliable, and is susceptible to interference that affects the speed and distance of wireless communication;

[0005] (2) The electromagnetic radiation of wireless communication equipment further increases the complexity of the electromagnetic environment of the power plant, aggravates the impact of electromagnetic interference on the process control equipment of the power plant, and poses a great threat to the production and operation safety of the power plant

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