The Design and Simulation of a Two-Layer Network Protocol for Industrial Wireless Monitoring and Control System
As the vital compliment of existed wired monitoring and control network, wireless systems, which share the 2.4GHz channel, are gradually introduced into the industrial application field. A previous research WICN (Wireless Industrial Control Network)-a token ring based network is limited by its single hop short range. A novel protocol named WICN-TL (Wireless Industrial Control Network-Two layers) is designed to deal with the distance problems of its predecessor. The paper introduces the topological structure, the stack model, the data format and the communicating procedure of the protocol. Moreover, the network protocol stack is implemented on the NanoNET hardware platform based on the IEEE802.15.4a standard and tested in a sewage plant and a turbine power simulation platform. The result shows that the network based on the protocol performs well in communication and the covered range is sufficient to apply to the normal industrial application demand.
Keywordswireless network protocol industrial network monitoring and control token ring 802.15.4a
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