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More and more state variables in the case, the filter state variables, and identify operating modes means that the state collect and spend a lot of computing time, which lost control of real-time. This article will focus on one kind of high-frequency signal conversion equipment, work characteristics and work processes, using NI CompactRIO systems to set up equipment operating status monitoring system...
Data acquisition is one of the most important steps to construct a measurement system. This paper presents a data acquisition system using a laptop, a NI cRIO-9052 StarFabric interface and a cRIO-9102 reconfigurable chassis. It can sample, store and analyze digital signal, which can be expanded to multi-channels if necessary. The system is designed for extreme ruggedness, reliability, and low power...
In this paper, the authors research on the scheduling and control co-design of networked control systems (NCSs) to enhance the performance of control systems. Optimization of sampling period is the basic way in co-design of scheduling and control. During the study, the sampling periods of networked control systems with multiple control loops have been scheduled by rate monotonic (RM) algorithm to...
The great advances in microelectronics and MEMS (micro-electro-mechanical system) make it possible to design real-time control loops over wireless networks. Real time character is the common request of control systems, multitask is the mainstream of the distributed control system nowadays. Aiming at selecting communication protocol in the wireless networks, the TrueTime toolbox is applied to establishing...
To enhance real-time performance of the motion control level communication, the real-time performance and feasibility of Ethernet application in the motion control level is analyzed. Then, this paper proposes an optimization method for Ethernet-based real-time communication of Computer Numerical Control (CNC) system. By this method, the transmission delay in Ethernet is obtained in the time synchronization...
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