Dynamic data packing towards the optimization of QoC and QoS in networked control systems |
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Authors: | Yu Kang YunBo Zhao |
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Affiliation: | 1. Department of Automation and State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230027, China 2. Key Laboratory of Technology in Geo-Spatial Information Processing and Application System, Chinese Academy of Sciences, Beijing, 100190, China 3. Department of Automation, Zhejiang University of Technology, Hangzhou, 310023, China
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Abstract: | A class of networked control systems is investigated whose communication network is shared with other applications. The design objective for such a system setting is not only the optimization of the control performance but also the efficient utilization of the communication resources. We observe that at a large time scale the data packet delay in the communication network is roughly varying piecewise constant, which is typically true for data networks like the Internet. Based on this observation, a dynamic data packing scheme is proposed within the recently developed packet-based control framework for networked control systems. As expected this proposed approach achieves a fine balance between the control performance and the communication utilization: the similar control performance can be obtained at dramatically reduced cost of the communication resources. Simulations illustrate the effectiveness of the proposed approach. |
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