Weiming Tong

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This paper proposes a novel method based on wavelet packet decomposition and support vector machines for detection and classification of power quality disturbances. Wavelet packet decomposition is mainly used to extract features of power quality disturbances; and support vector machines are mainly used to construct a multi-class classifier which can(More)
With the development of electric driving systems, the synchronization control system of multiple motors has been used widely in many industry fields recently. The research on the synchronized control technique of multiple motors is getting more and more important. This paper focuses on the synchronization control strategy of multi-motor control system based(More)
At the time of this paper writing, all scheduling algorithms are looking for tradeoffs between low complexity, low latency, and fairness. The priority queuing (PQ) scheduling can meet the requirements of real-time applications but is not good at fairness; sorted priority algorithms like WFQ, achieve better results in latency and fairness by calculating(More)
PROFIBUS luldbus is used widely in many automated systems such as manufacturing industries and process factories. In this paper, some of parameters are analyzed, which have close relationship with the real time performance of system, such as DP cycle time and target token rotation time. Two kinds of formulas of time estimate are given. The variety trend of(More)
In this paper, a data engine model for CAN is proposed, so devices simply based on CAN could communicate with other applications and users could maintain the simply CAN based network and interface devices while utilizing the existing configuration software. The concept of an I/O tag is put forward and CAN messages could be mapped into tag items. By handling(More)
The total economic value of wetland ecosystem services can be separated into use value and non-use value. The non-use value assessment on a large time scale is insignificant for the wetland management policies. This paper uses an economic model to analyze the non-use value trends based on the former willingness to pay survey of the non-use value in the(More)
A FPGA-based full-digital NC system is designed¿various functions such as servo control, USB communication control, encoder signal control and digital-analog expansion interface control are integrated in the FPGA. The direct digital communication between CNC and drive system as well as other peripherals are realized in this system. The method of direct(More)
Advanced metering infrastructure (AMI) is considered to be the first step in constructing smart grid. AMI allows customers to make real-time choices about power utilization and enables power utilities to increase the effectiveness of the regional power grids by managing demand load during peak times and reducing unneeded power generation. These initiatives(More)