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International Journal of Multimedia and Ubiquitous Engineering 2015年第6期10卷 1-8页

作者： Wu, Li-Hua Yao, Jia-Yu Lin, Xi-Rong Zhang, Hai-Yang The higher educational key laboratory for Measuring and Control Technology Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin China

Grain stored in granary is easily spoiled due to accumulated hear or humidity if not monitored and maintained properly. Supervisory control and data acquisition (SCADA) system is commonly used in granary to provide real-time storage information. Major functionalities in the granary SCADA system is usually provided by an acquisition and control system based on single chip computer installed inside or near the granary. Based on theoretical and commissioning data, the design of the acquisition and control system was introduced in this paper. The acquisition and control system is able to acquire realtime data of temperature, humidity and concentration of CO2 inside the granary. It also provides the functionalities of open/shut the granary windows, as well as turning on/off the high-power roller shutter doors and blowers. Users are able to obtain real-time monitored data and control the system accordingly. © 2015 SERSC.

关键词： SCADA systems

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Failure mechanism analysis and failure number prediction of wind turbine blades

Telkomnika (Telecommunication Computing Electronics and Cont...

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Telkomnika (Telecommunication Computing Electronics and control) 2014年第3期12卷 533-540页

作者： Chun-yu, Yu Guo, Jian-Ying Xin, Shi-Guang Higher Educational Key Laboratory for Measuring Control Technology and Instrumentation of Heilongjiang Province Harbin University of Science and Technology China

Pertinent to the problems that wind turbine blades operate in complicated conditions, frequent failures and low replacement rate as well as rational inventory need, this paper, we build a fault tree model based on in-depth analysis of the failure causes. As the mechanical vibration of the wind turbine takes place first on the blades, the paper gives a detailed analysis to the Failure mechanism of blade vibration. Therefore the paper puts forward a dynamic prediction model of wind turbine blade failure number based on the grey theory. The relative error between its prediction and the field investigation data is less than 5%, meeting the actual needs of engineering and verifying the effectiveness and applicability of the proposed algorithm. It is of important engineering significance for it to provide a theoretical foundation for the failure analysis, failure research and inventory level of wind turbine blades.

关键词： Turbomachine blades

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The Implementation of Phone Platform Telecommunication Installation and Maintenance System

The Implementation of Phone Platform Telecommunication Insta...

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International Conference on Advanced Information technology and Sensor Application (AITS)

作者： Li-Hua Wu Hai-Yang Zhang Zi Yu Zhi-Qiang Zhao The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin China

With the number of telecom users and business volume increasing year by year, the traditional paper-made work orders has been unable to meet the needs of telecom companies and users because of low circulation efficiency, high cost, high failure rate and other drawbacks, the rapid development of computer technology makes office automation become the trend of future business development. Aiming at this problem, in this paper, a new set of telecommunication installation and maintenance office automation system is designed, which selects iphone iOS system, the most popular phone system as its development platform, using Xcode software for Objective-C language programming, using HTTP protocol to realize the data exchange between phone platform and web platform. The actual test proves that the system has stable performance, high work orders circulation efficiency and convenient real-time management, which improves the business efficiency greatly.

关键词： Maintenance engineering Databases Office automation Personnel Telecommunications

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Research on camera calibration method based on eight parameter model

International Journal of Signal Processing, Image Processing...

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International Journal of Signal Processing, Image Processing and Pattern Recognition 2015年第9期8卷 283-288页

作者： Shuchun, Yu Shuang, Liu Xiaoyang, Yu The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang province Harbin University of Science and Technology Harbin China

Camera calibration is the basis for realization of image distortion correction. Because the causes of image distortion are very complex, it has become a difficulty to correct image distortion with calibration results. In order to reduce the complexity of the existing distortion correction method, an eight parameters camera calibration model was proposed in this paper. In this model, eight parameters were used in describing radial distortion and tangential distortion. The experimental results show that the proposed method can be easily solved and correct distortion accurately. ©, 2015 SERSC.

关键词： Cameras

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The 3D surface measurement and simulation for turbine blade surface based on color encoding structural light

International Journal of Signal Processing, Image Processing...

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International Journal of Signal Processing, Image Processing and Pattern Recognition 2015年第3期8卷 273-280页

作者： Ling, Yang Jiahe, Yuan The Higher Educational Key Laboratory for Measuring and Control Technology Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin China

This paper proposes a color encoding structural light approach for the three-dimensional measurement of turbine blade surface. It adopts RGB color mode design coding scheme, by using the six basic colors, red, green, blue, yellow, magenta, and cyan for color-coded stripes. Every three stripes are grouped together, while the color combinations for each group are different. The coding pattern based on these color stripes is projected to the blade. A CCD camera then captures the image modulated by the blade. We then decode this image to obtain the three-dimensional coordinates of the measured points on blade surface. According to the structure light measurement principle, we designed and determined the parameters of the three-dimensional measurement. This paper established a mathematical model of a turbine blade through simulation by using 3ds max software. We designed a threedimensional measurement system for the simulation, and obtained the three-dimensional coordinates of the blade surface by measuring the turbine blade. Finally, the threedimensional blade model reconstructed by the measured data is established. 2015 SERSC.

关键词： Turbomachine blades

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A study on the approach of the structured light three-dimensional measurement

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International Journal of u- and e- Service, Science and technology 2015年第11期8卷 303-316页

作者： Wang, Beiyi Yu, Xiaoyang He, Baohua Cai, Yingfu Zhang, Jixun Sun, Xiaoming The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang province Harbin University of Science and Technology Harbin150080 China

In order to establish the 3D Temperature Field based on structure light 3D measurement and cross-correlation registration. Infrared/Visible camera calibration method and heterologous images registration method were studied. First, according to infrared camera’s characteristics, the selection of calibration templates have been studied and the calibration of the infrared camera has been accomplished on the basis of planar calibration method;then, we simplified the two-step method based on the mature principle of structure light measurement;and the visible camera was calibrated;finally, use calibrated visible cameras to form structured light measurement system, and register the infrared image and visible image in the geometrical position. Experimental results show that: the relative error of measurement system is less than 0. 3%;infrared and visible image’s alignment error in geometrical position is 0. 0015 mm. and measurement systems have good reconstruction results for plane and curved, and cross-correlation method has a good effect for heterrologous images registration. © 2015 SERSC.

关键词： Calibration

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Design of computer room monitoring system with remote language alarm function

Design of computer room monitoring system with remote langua...

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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： Zhongming Luo Huaze Liu Zhuofu Liu The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin Heilongjiang China

ISBN: (纸本)9781467377249

In the article,there is two aspects of the design with the control system and monitoring system for the engine room monitoring *** control system with decoupling PID algorithm is designed for VAV system to control the temperature and humidity of the room,and further to control the environment of the *** system using PLC with touch screen and GPRS modules monitor the control system intuitively and improve the stability of the *** a new way of thinking for room monitoring system.

关键词： digital watermark wavelet packet adaptive feature of texture

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Research on image retrieval technology based on fast wavelet transform

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International Journal of Hybrid Information technology 2015年第4期8卷 1-6页

作者： Shuang, Liu Xiaoyang, Yu Zhenyu, Xiao Shuchun, Yu The higher educational key laboratory for Measuring and Control Technology Instrumentations of Heilongjiang province Harbin University of Science and Technology Harbin150080 China

In present research, the image feature based on adaptive wavelet has been widely used in the content-based image retrieval field. However, there is a common problem in these methods, which is to describe different query images with the same wavelet basis. In order to improve the adaptability of the image retrieval technology, we design different image basis for different query images, to achieve characterizing the feature-changing of different image categories with the adjustable distance measure. We also use the approximate Taylor expansion to reduce the seeking time of the characterization image and the characterization derivative image. As the experimental results have shown that, the new image retrieval technology with high adaptability can improve the retrieval performance greatly. © 2015 SERSC

关键词： Wavelet transforms

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The design of intelligent Weighing apparatus monitoring based on Internet of things

The design of intelligent Weighing apparatus monitoring base...

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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： Cao Wei Pengfei Jiang Dong Wei The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin Heilongjiang China

ISBN: (纸本)9781467377249

In order to improve the efficiency of the metrology department and promote the development of intelligent weighing apparatus, this paper proposes the design of the weighing monitoring system from two aspects of measurement system and monitoring *** the measuring end,STC89C52 microcontroller is used as the main control chip to achieve the accurate measurement of *** temperature drift of the pressure sensor is reduced by using the pressure sensor temperature compensation algorithm based on the combination of Lagrange difference and least *** monitoring system uses the upper computer,the Wi-Fi module and the Android mobile phone to remotely monitor the measurement system intuitively,receives and displays the measurement data in real time,and can invoke the historical *** system realizes the real-time monitoring of the weighing instrument and makes the weighing instrument become the integrated remote monitoring equipment,which has many functions such as data analysis,remote diagnosis and remote *** design is of great significance to study the intelligent weighing field.

关键词： Intelligent weighing apparatus Pressure sensor Monitoring system Android Temperature compensation

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Research of Modeling and Sliding Mode Advanced control For Four Rotor Aircraft

Research of Modeling and Sliding Mode Advanced Control For F...

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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： Zhongming Luo Xuexin Zhang Zhuofu Liu The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin Heilongjiang China

ISBN: (纸本)9781467377249

In the process of the design of the four rotor,control system design is a crucial *** real thing shows a certain or strong *** using the classical method,the control object is simplified to the linear and small perturbation model,and then we control the small perturbation ***,the non-linear model is controlled directly in many advanced control *** control theory can get rid of the traditional classical control modeling of *** structure sliding mode adaptive control system,is a kind of advanced controller,can use the switch sliding surface makes the system achieve good *** article first to the four rotor model,and then designed based on sliding mode control method,and has carried on the simulation research,proved the effectiveness of the method.

关键词： Quadrotor Automatic control System Stability PID Sliding Mode control

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