Cold Rolling Strip Off-Tracking Online Monitoring Method via Wireless Sensor Network with Self-Powered Nodes

Abstract:

The problem of off-tracking in looper area of a cold rolling strip production line is usually unavoidable especially when the looper carriage is located far away from the strip deviation detection device. The looper carriage itself is the best place for installing the detecting sensor. However, the wired monitoring system is not suitable because the carriage is moving and the power of common wireless monitoring system has to be recharged manually and frequently due to a high power consumption of the detecting sensor. A novel method of strip off-tracking online monitoring method via wireless sensor network with self-powered nodes is proposed, which is helpful to overcome the difficulties of the conventional methods. The energy of the wireless monitoring node was supplied by an electromagnetic induction generator driven by a devised transmission mechanism. An intelligent power-recharging control module including a single-ended primary-inductor converter was designed to charge the lead acid battery using a floating charging strategy. A selective space diversity scheme for receiving node in the wireless sensor network was put forward to resist path loss and fading in industrial environment. Theoretical analysis and experiment results have proved the feasibility of the proposed method.

• Periodical: Key Engineering Materials (Volume 572)
• Pages: 459-462
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.572.459
• Online since: September 2013
• Authors: Jian Hong Yang, Min Li, Ke Hua Huang
• Keywords: Online Monitoring, Self-Powered Node, Strip Off-Tracking, Wireless Sensor Network (WSN)

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