SDQ-based message estimator for TCP-network motion control System

Network motion control system because of network bandwidth restriction, the sampling period must increase to lead to degrade motion accuracy. This paper regards TCP network as network infrastructure, and the traditional linear interpolation is applied in slave system to make slave system possesses smaller sampling period than in remote system, and then maintain motion precision. About data dropout caused because of network delay, this paper utilizes TCP network guarantee characteristic that message can achieve match SDQ-based message estimator succeeding and accurate estimating the loss message to maintain good motion precision. In simulation, combine linear interpolation mechanism and SDQ-based message estimator, can improve motion NCS tracking accuracy, and under the high frequency motion position commands, there are more apparent improvement results.