A Transmission Power Distribution Method Based on Lyapunov for Scraper Chain Tension Monitoring Network

Using WSN technology to monitor the tension of the scraper chain can determine whether there is chain jam, chain broken and other failures, but the scraper and scraper chain are constantly moving, making continuous monitoring of the tension of the scraper chain through the monitoring node with limited energy has become a challenge. To reduce node transmission power consumption and extend the life of the monitoring network, this paper first establishes a tension monitoring network model for scraper chains. Then, based on the motion characteristics of the scraper conveyor, a monitoring node transmission power allocation method based on Lyapunov optimization theory is proposed. The simulation results indicate that the proposed method can ensure the stability of the monitoring network data queue and minimize the transmission power of the monitoring nodes. Compared with the full power allocation method, the proposed TPAL method reduces transmission power consumption by more than 15.6%.