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Chinese control Conference (CCC)

作者： Shunli Zhao Yuehui Ji School of Electrical and Electronic Engineering Tianjin University of Technology Tianjin China Tianjin Key Laboratory for Control Theory & Applications in Complicated System Tianjin University of Technology Tianjin China

There have been growing concerns in networked control system with communication constraints. In the paper, a model-reference scheduling scheme is proposed for optimizing the distribution of the network resource. The states are determined to gain the access to the network by computing the difference between the real system and the ideal system. The stability analysis and the joint design of the controller and scheduling are given by formulating the problem as a linear equality equation that can be solved efficiently. The proposed strategy is evaluated through a simple simulation.

关键词： Optimized production technology Real-time systems Conferences control theory Robustness

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Power system Fault Diagnosis Based on Extended Bayesian Network

Power System Fault Diagnosis Based on Extended Bayesian Netw...

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IEEE International Conference on Mechatronics and Automation

作者： Yanjuan Wu Yannan Guo Tianjin Key Laboratory for Control Theory and Applications in Complicated System Tianjin University Of Technology Tianjin China School of Electrical and Electronic Engineering Tianjin University Of Technology Tianjin China

After a fault occurs in power system, when the information obtained by Supervisory control And Data Acquisition(SCADA) are incomplete or inaccurate, the fault diagnosis result accuracy reduces greatly. In view of this, the Extended-Bayesian Network approach is proposed, which introduces the concepts of abnormal information. According to the timing characteristics of relay protection and circuit breaker operation, a set of fuzzy rules about abnormal information are established. The Network is extended by the component nodes and the probability of indefinite information is assigned based on fuzzy rules, which makes fault information complete. The proposed method improves the accuracy of the results in case of large-scale fault or large amounts of data missing. Compared with the Original Bayesian Network method, the result of the Extended-Bayesian Network accuracy increases dramatically, which illustrates the effectiveness of the method.

关键词： Power system Fault Diagnosis Timing Information Fuzzy theory Bayesian Network

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A Novel 1.03 ppm/°C Wide-Temperature-Range Curvature-Compensated Bandgap Voltage Reference

A Novel 1.03 ppm/°C Wide-Temperature-Range Curvature-Compen...

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International Conference on Circuits, system and Simulation (ICCSS)

作者： Jinlong Hu Jie Sun Yangbo Bai Huachao Xu Tao Du Guofeng Li Yao Chen Tianjin Complex System Control Theory and Application Key Laboratory Tianjin University of Technology Tianjin China Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology Nankai University Tianjin China Advance Digital Sciences Center Singapore

ISBN: (纸本)9781538678206

This paper proposes a novel bandgap voltage reference with an accurate curvature compensation technique for completely compensating the thermal nonlinearity of the emitter-base voltage. With VIS 0.15 standard CMOS process, the proposed bandgap voltage reference circuit achieves temperature coefficient of 1.03 ppm/°C over the temperature range from -55°C to 155°C with the supply voltage of 1.8V. In addition, the circuit achieves line regulation performance of 0.02%/V with the supply voltage from 1.8V to 3V and the power supply rejection (PSR) levels are 83dB, 77dB, 58dB at ultra-low frequency (

关键词： Photonic band gap Temperature Temperature dependence Resistors Transistors Voltage control Low voltage

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Overview of Medical Robot Technology Development

Overview of Medical Robot Technology Development

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Chinese control Conference

作者： Jinpeng Zhou Xu Ma Zhang Xu Zhou Qi Tianjin University of Technology Tianjin China Tianjin Key Laboratory for Control Theory& Applications in Complicated System Tianjin University of Technology Tianjin China School of Mechanical Engineering Tianjin University of Technology and Education Tianjin China School of Mechanical Engineering Hebei University of Technology Tianjin China

Medical robots have been developing rapidly over the past few decades. According to the functions and uses of robots, medical robots are divided into: neurosurgical robots, orthopedic robots, endoscopic surgical robots, vascular interventional robots, prosthetic exoskeleton robots and assisted rehabilitation robots. The research and application of typical surgical robots at home and abroad are introduced in detail. The key technologies of medical robots are described, such as surgical robotics, 3D medical image modeling, virtual surgery simulation and teleoperation network transmission. The analysis also pointed out the direction of future development.

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Overview of Medical Robot Technology Development

Overview of Medical Robot Technology Development

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第37届中国控制会议

作者： Jinpeng Zhou Xu Ma Zhang Xu Zhou Qi Tianjin University of Technology Tianjin Key Laboratory for Control Theory& Applications in Complicated System The School of Electrical and Electronics EngineeringTianjin University of Technology School of Mechanical Engineering Tianjin University of Technology and Education School of Mechanical Engineering Hebei University of Technology

Medical robots have been developing rapidly over the past few *** to the functions and uses of robots,medical robots are divided into:neurosurgical robots,orthopedic robots,endoscopic surgical robots,vascular interventional robots,prosthetic exoskeleton robots and assisted rehabilitation *** research and application of typical surgical robots at home and abroad are introduced in *** key technologies of medical robots are described,such as surgical robotics,3 D medical image modeling,virtual surgery simulation and teleoperation network *** analysis also pointed out the direction of future development.

关键词： Medical robots Image processing Virtual surgery simulation Teleoperation

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Summary of Medical Robot Technology Development

Summary of Medical Robot Technology Development

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IEEE International Conference on Mechatronics and Automation

作者： Xu Zhang Xu Ma Jinpeng Zhou Qi Zhou Tianjin Key Laboratory of High Speed Cutting & Precision Maching Tian jin University of Technology and Education Tianjin China Tianjin Key Laboratory for Control Theory& Applications in Complicated System Tian jin University of Technology Tianjin China Tian jin University of Technology Tianjin China School of Mechanical Engineering Hebei University of Technology Tianjin China

In the past few decades, medical robots have developed rapidly. In this paper, medical robots are divided into the following categories based on the application of medical robots: neurosurgery robots, orthopedic robots, endoscopic surgery robots, instrutive robots, rehabilitation-assisted robots and capsule robots. The research and application status of typical surgical robots at home and abroad are briefly introduced, and medical 3D image modeling, virtual surgery simulation, open-source surgical systems, and remote surgery in complex environments involved in medical robots are studied. key technologies were discussed, and the future direction of medical robots was pointed out.

关键词： Medical robotics Navigation Biomedical imaging Neurosurgery

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Research on Hybrid Scheduling Algorithm Based on CAN bus

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Instrumentation 2017年第2期4卷 22-27页

作者： HAN Shunyuan ZHANG Zhihong HE Hong School of Electrical and Electronic Engineering Tianjin University of TechnologyTianjin Key Laboratory of Complex System Control Theory and Application Transmission and Launch Department Tianjin Radio and TV Station

In view of the problem that the packet information preempted netw ork resources in the process of transmission in the CAN bus,w hich leads to the low utilization of netw ork resources and the low accuracy of information transmission. Thus,a hybrid scheduling algorithm NM TS based on CAN bus is proposed,in the NM TS hybrid scheduling algorithm,the dynamic scheduling algorithm EDF is used to schedule hard real-time messages to solve the problem of low utilization of netw ork resources; the static scheduling algorithm RM S is used to schedule soft real-time messages and non real-time messages,so as to solve the problem of low accuracy of information transmission. By using M ATLAB softw are,the CAN netw ork model can be built,the EDF algorithm,RM S algorithm and NM TS algorithm are simulated. The experimental results show that the netw ork resources utilization is 90%,the packet loss rate is 0% of the NM TS algorithm. Therefore,The hybrid scheduling algorithm based on CAN bus NM TS has the characteristics of high netw ork resource utilization and high accuracy of information transmission,w hich w ill be very helpful for further research of CAN bus.

关键词： RMS EDF NMTS Hybrid Scheduling

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A Method for Detecting Abnormality of CAN Bus in Vehicle

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Instrumentation 2017年第2期4卷 28-33页

作者： PENG Jing ZHANG Zhihong HE Hong School of Electrical and Electronic Engineering Tianjin University of TechnologyTianjin Key Laboratory of Complex System Control Theory and Application Transmission and Transmission Department Tianjin Radio and Television Station

With the development of intelligent and netw orking technology in automobile,the malicious attacks against in-vehicle CAN netw orks are increasing day by day,and the problem of information safety in automobile is aggravated. In this regard,this paper analyzes the security loopholes and threats w hich the CAN bus faced,put forw ard a kind of anomaly detection algorithm for vehicle CAN bus. The method uses support vector machine algorithm to distinguish betw een normal message and abnormal message,so as to realize the CAN bus anomaly detection. Theoretical and experimental studies show that this method can effectively detect abnormal packets in the CAN bus w ith a detection rate of over 90%,w hich can effectively resist malicious attacks such as tampering and cheating on the vehicle CAN bus.

关键词： Automobile CAN bus Information Security Support Vector Machines Abnormal Detection

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Robust H∞ Resilient control of Network-based control system with Modulation

Robust H∞ Resilient Control of Network-based Control System...

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第36届中国控制会议

作者： Shunli Zhao Xunhe Yin Tianjin Key Laboratory for Control Theory & Applications in Complicated System Tianjin University of Technology School of Electrical and Electronic Engineering Tianjin University of Technology School of Electronic and Information Engineering Beijing Jiaotong University

Network-based control system has been an emerging technology in the control and communication fields in recent *** is a key step to achieve bandpass transmission,especially for the wireless ***,an important component in network-based control system,has the detrimental effect on the system performance in some *** the paper,first,it is shown that the modulation can result in time delay existing not only between sensor and controller,but also between controller and ***,system stability is analysed,and a robust H resilient controller restraining controller gain perturbance is designed based on the LMI ***,a numerical simulation is used to demonstrate the effectiveness of the designed controller.

关键词： Network-based control system modulation Robust H_∞ Resilient control LMI

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Active disturbance rejection control of waste heat recovery systems with organic rankine cycles

Active disturbance rejection control of waste heat recovery ...

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Geothermal Resources Council 2016 Annual Meeting - Geothermal Energy Here and Now: Sustainable, Clean, Flexible, GRC 2016

作者： Zhang, Jing Wang, Yan Wang, Zhigang Fu, Wencheng Tianjin Key Laboratory for Control Theory and Applications in Complicated System Tianjin China School of Electrical Engineering Tianjin University of Technology Tianjin China

ISBN: (纸本)0934412219

Organic Rankine Cycle (ORC) is an effective technology to recovery low grade waste heat from exhaust gas. Many advantages of ORC are high efficiency, simple system, low pressure of working to seal, environment friendly and so on. A novel control algorithm called Active Disturbance Rejection control (ADRC) is applied to vapor temperature control at the outlet of evaporator of organic Rankine cycle (ORC) system. The disturbances imposed on the waste heat recovery system are estimated through an extended linear state observer and then compensated by a linear feedback control strategy, it can eliminate disturbance via disturbance compensation independent of the accurate mathematical model of the plant. It is reliable, efficient and simple. Simulation examples demonstrate the simplicity of the design procedure and the good tracking performance.

关键词： Rankine cycle

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