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International Journal of Signal Processing, Image Processing and Pattern Recognition 2015年第10期8卷 137-146页

作者： Xiaobing, Zhang Mengchen, Yang Wei, Cao College of Measure-control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

For the problem of electrical energy measurement could not be united under the condition of non-stationary distortion signals, in the paper, the functionals series was used to modeling the signals. Firstly, the Wiener kernel of nonlinear load was acquired;the output signal of nonlinear load was expressed using functionals series under the condition of sinusoidal excitation;and then, we used the wavelet transform to processed and acquired component of fundamental and distortion;and though the acquisition component of voltage and current, we analyzed the power flow of nonlinear load, and according the result of power flow, we proposed a new method of active power measurement. The simulation result shows that the result of theoretical analysis is the same as the new method, and the new method of electric energy measurement based on the functional series can achieve the reasonable electrical energy measurement. © 2015 SERSC.

关键词： Wavelet transforms

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Coordination control of dual-arm robot based on modeled predictive control

Coordination control of dual-arm robot based on modeled pred...

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IEEE International Conference on Real-time Computing and Robotics (RCAR)

作者： Ming Jiang Ming-Qu Fan Ai-Min Li Xue-Wen Rong Hui Kong Rui Song College of Electronic Communication and Physics Shandong University of Science and Technology Qingdao China College of Electrical Engineering and Automation Shandong University of Science and Technology Jinan China Shandong University of Science and Technology Qingdao Shandong CN School of Control Science and Engineering Shandong University Jinan China

ISBN: (纸本)9781467389600

This paper presents a master-slave force hybrid coordinated motion control method which is based on the model predictive control (MPC) algorithm. In the paper, the kinematics model of the dual 6-DOF arms is build. Six axis force sensors are installed at the ends of the two arms, the master arm adopts the position control method and the based on the model predictive control algorithm DMC theory force/position hybrid control method is adopted in the slave arm. According to the kinematic model of the dual-arms, the end pose and joint angle rule conversion library is established, and the motion prediction model of the manipulator also is established. By using these models, the slave arm can acquire the position and direction of the master arm synchronously, and the current end position of the master arm is also used as the reference input value of the end position of the slave arm. The rotation operation sequence of the joint angle rule conversion library predicted model and end pose apply to the joint motor, drive the end of the robot arm to move to the target position. After doing these we could synchronously realize position tracking. In our experiment the current position tracking could be realized through the simulation analysis of six degree of freedom dual arm robot.

关键词： Handheld computers Decision support systems Conferences Real-time systems Robots

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Speech enhancement using magnitude and phase spectrum compensation

Speech enhancement using magnitude and phase spectrum compen...

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International Conference on Computer and Information Science (ACIS)

作者： Zhen Li Wenjin Wu Qin Zhang Hui Ren Shilei Bai Information Engineering School Communication University of China Beijing China Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Beijing China Beijing Key Laboratory of Modern Entertainment Technology Beijing China

ISBN: (纸本)9781509008070

Background noise is a severe problem in speech related systems. In order to solve this problem, it is important to eliminate the noise from the noisy speech, which is called speech enhancement. Typical speech enhancement algorithms only operate on the short-time magnitude spectrum, while keeping the short-time phase spectrum unchanged for synthesis. Or only compensate the phase spectrum while keeping the magnitude spectrum unchanged. In this paper, we present a novel method by changing both magnitude and phase spectra to produce a modified complex spectrum. The test of an objective speech quality measure PESQ, and spectrogram analysis had showed that the proposed method can obtain better enhancement performance.

关键词： Speech Speech enhancement Noise measurement Signal to noise ratio Spectrogram Estimation

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Integrated navigation for pedestrian with building heading algorithm and inertial measurement unit

Integrated navigation for pedestrian with building heading a...

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International Conference on control, Automation and Information Sciences (ICCAIS)

作者： Yingbo Cai Qian Sun Ya Zhang Chunzhu Yu Hongmei Bai School of Electrical Engineering and Automation Harbin Institute of Technology Harbin China College of Information and Communication Engineering Harbin Engineering University Harbin China Beijing Aerospace Automatic Control Research Institute Beijing China College of Automation Harbin Engineering University Harbin China

ISBN: (纸本)9781509006519

To improve the positioning accuracy in indoor environments, we use the Inertial Navigation System (INS) algorithm to perform the pedestrian tracking, and the measurements consist of two parts: the velocity error and the heading error. The velocity error can be gotten from the navigation result. Meanwhile, we get the heading error in two ways. First, taking the magnetometer as the heading resource, the magnetic perturbations can be eliminated through a new ellipsoid fitting based calibration algorithm. Furthermore, the building heading algorithm(BHA) is also adopted to aid the Inertial measurement Unit (IMU), the corresponding building heading can be derived based on the motion path. Finally, the Kalman filter (KF) is utilized to fuse the data in order to compensate the sensor error and navigation solution through a 15-dimentional state vector. As a result, some field trials were taken to prove the validity of the proposed algorithm. By contrast the result of Magnetometer (MAG)/BHA/INS and the Zero Velocity update (ZUPT) algorithms, we proved that the algorithm of MAG/BHA aiding INS can effectively improve the indoor positioning accuracy which shows better performance.

关键词： Navigation Magnetometers Buildings Micromechanical devices Calibration Automation Conferences

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Research on lactose concentration detection device based on the optical rotation method

Research on lactose concentration detection device based on ...

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2015 Fifth International Conference on Instrumentation and measurement,Computer,communication and control (IMCCC2015)(第五届仪器测量、计算机通信与控制国际会议)

作者： Zhen Zhou Li Liang Kangkang Guo Zehong Lv College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781467377249

At present,the process of detecting the sample of the lactose detection method is very complicated due to the strict operation condition,long operation time and expensive *** the nature of lactose that can rotate the plane of polarization of plane-polarized,a lactose concentration detecting device is *** device consists of an experiment platform,a photoelectric receiving and converting module,a data processing module,and a LCD ***,polarizer,detector tube,analyzer and photocell are placed on the experiment *** test results show that the performance of the detection device is stable and the error is less than 10% through multiple measure on different solutions at different *** advantage of the device is mainly manifested in its low cost,compact structure,light weight,small volume,fast response speed,and the convenient operation.

关键词： lactose Optical rotation concentration detection

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Research on the test system for electrical parameters of relay based on STM32

Research on the test system for electrical parameters of rel...

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2015 Fifth International Conference on Instrumentation and measurement,Computer,communication and control (IMCCC2015)(第五届仪器测量、计算机通信与控制国际会议)

作者： Zhen Zhou Zehong Lv Kangkang Guo Li Liang College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781467377249

The current test system for electrical parameters of relay, mainly with the 51 series MCU as the central processing unit, peripheral components are various, running speed is limited, and judging the failure of relay only rely on testing the contact resistance exceeds the standard or not, testing parameter is single. Foreign technology on research and development of test system for relay's electrical parameters is mature, but the cost is higher. Thus, in this paper, we study a kind of test system for relay's electrical parameters with STM32 MCU as the central processing unit, which can realize to test the relay's electrical parameters such as coil resistance, contact resistance, suction voltage, release voltage, suction time, release time, arc time and so on. This paper mainly discusses the design principle and hardware structure, finally obtained test data by the experiment, the data show that the test system has the advantages of fast running, stable performance, simple design, and has a certain market value.

关键词： STM32 relay electrical parameter test system

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Power supply for low-temperature plasma sterilization

Power supply for low-temperature plasma sterilization

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Annual Conference of Industrial Electronics Society

作者： Di Zhang Donglai Zhang Zhiyun Bao Power Electronic & Motion Control Research Center Harbin Institute of Technology Harbin Heilongjiang CN Power Electronic & Motion Control Research Center Harbin Inst. of Tech. Shenzhen Graduate School Shenzhen China School of Electronic and Communication Engineering Shenzhen Polytechnic Shenzhen Guangdong CN

Plasma plays an increasing role in medical, domestic environments and electric propulsion for space and other applications. As the fourth state of the matter, plasma has different modes with various working conditions. DC power source and AC power source can both generate plasma, however the corresponding characteristics manifest certain differences. Compared with DC power supply, AC mode working in the region of glow discharge can generate plasma more easily with low operating voltage. Using high frequency AC current-type to make low-temperature hydrogen peroxide gas plasma (LTP) sterilization can be low pollution and no damage for the equipment. In this paper, a 20kHz AC current-type power supply for plasma glow discharge topology is proposed; such a power supply, comparing with a radio frequency power supply, effectively reduces the complexity of the system and improves the reliability of the equipment. A 500W prototype for LTP sterilization has been included in this demonstration to verify the feasibility of the proposed solution.

关键词： Plasmas Power supplies Hydrogen Radio frequency Glow discharges Couplings Capacitors

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Research on credibility measurement method of data in big data

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Journal of Information Hiding and Multimedia Signal Processing 2016年第4期7卷 846-857页

作者： Cheng, Xiao-Rong Li, Tian-Qi Hou, Si-Zu Zhao, Hui-Lan Wang, Hong-Yu School of control and computer engineering North China Electric Power University BaodingHebei071003 China Department of Electronic & Communication Engineering North China Electric Power University BaodingHebei071003 China College of information technology Hebei Normal University ShijiazhuangHebei050024 China

On the basis of analytical theory of credible traditional data, this paper constructs a hierarchical trusted network model of dynamic data analysis by increasing time factor, penalty factor and other weight parameters, which puts the credibility of the analysis of the problem down to the big data combinatorial problems of between the data sources, data source and data dissemination network path. That is, by calculating the credibility between data sources, the credibility of data and data source, the paper dynamically constructs the Big Data networks of the trusted analysis through analytical data calculating the overall credibility of data. The simulation results show that the model can satisfy the requirement of the credibility of Big Data better, and provide the ideas to solve the problem of the credibility measure for prospective research is feasible. © 2016.

关键词： Big data

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Inertial navigation system positioning assisted by star sensor

Inertial navigation system positioning assisted by star sens...

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International Conference on control, Automation and Information Sciences (ICCAIS)

作者： Hongsong Du Qian Sun Ya Zhang Zhao Qi Ya Wen Navy Academy of Armament The Research Institute of Ships Beijing China College of Information and Communication Engineering Harbin Engineering University Harbin China School of Electrical Engineering and Automation Harbin Institute of Technology Harbin China Beijing Aerospace Automatic Control Research Institute Beijing China

ISBN: (纸本)9781509006519

The Star Sensor can be used to assist the inertial navigation system (INS) for navigation and positioning, restraining the accumulated error caused by the inertial components. During the integrated navigation process, the Star Sensor is installed above the INS, generated installation errors between the INS body coordinate system and the Star Sensor body coordinate system. In order to increase the system accuracy, a new gyro error model is established in this paper which taken full account of various error factors. The gyro drifts and the gyro errors coefficients are considered as the state variables. The attitude information of Star Sensor is used as the high-accurate information to construct the observation with the attitude information of INS. Taken the nonlinearity of the actual system into account, the nonlinear filter Cubature Kalman Filter (CKF) is used to estimate the gyro errors commendably. The experiment results showed that the positioning error reduced a lot by utilizing this novel method.

关键词： Mathematical model Inertial navigation Calibration Satellite navigation systems Automation Quaternions

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Maximum Power Point Tracking control of Solar Power Generation Systems Based on Type-2 Fuzzy Logic

Maximum Power Point Tracking Control of Solar Power Generati...

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World Congress on Intelligent control and Automation

作者： Shun Zhang Tiechao Wang Chengdong Li Jianhong Zhang Yan Wang College of Electrical Engineering Liaoning University of Technology Jinzhou Liaoning 121001 China School of Information and Electrical Engineering Shandong Jianzhu University Jinan 250101 China Beijng Aerospace Automatic Control Institute Haidian Beijing 100854 China School of Mechanical and Electrical Engineering Beijing Institute Of Graphic Communication Daxing Beijing 102600 China

ISBN: (纸本)9781467384155

This paper has proposed maximum power point tracking (MPPT) control for stand-alone solar power generation systems via the type-2 Takagi-Sugeno (T-S) fuzzy-model-based approach. In order to deal with the uncertainties in the modeling procedure, the type-2 T-S fuzzy technology is employed. To handle reducing the conservatism of LMI-based stability conditions for type-2 T-S fuzzy systems, stability conditions are relaxed by introducing more slack matrix variables. Finally, the control performance is shown from the numerical simulation and experimental results.

关键词： MPPT Type-2 T-S fuzzy model Slack matrix variables LMI

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