bluuebunny/crossref_metadata_2025 huggingface dataset:
Performance Analysis of in-Out System of Railway Container Terminal Based on Fuzzy Queuing Model
Authors: Lin Bing Kun , Cheng Wen Ming
Published: June 2012

The in-out system of railway container terminal is a fuzzy queue system when the container truck arrival rate and in-out system service rate are fuzzy. To construct the membership functions of the performance measures, two rates were both represented as trapezoidal fuzzy numbers and the definition of α-cut and Zadeh’s extension principle were applied to transform fuzzy queues into traditional queues. The upper and lower bounds of the system eigenvalues were obtained with a parametric programming method. The membership function of the system eigenvalue was solved with a numerical computation of various α levels. The more information and theoretical support was provided for analysis and optimization of the in-out system of railway container terminal.
The Facilities Plan and Project Management Based on the Optimize Correlation of Logistics and Production Construction
Authors: Yang Tian Xiong
Published: June 2012

Construction of production facility is a modern large enterprise workplace, because of the layout of construction and projecting management are unreasonable, which result in low utilization rate of resources and low efficiency. Considering the logistics-related sufficiently, we use facility planning, design methods and fine management of the project through combining with a coherent design process to achieve the purpose of project facilities optimization, rational allocation of resources and improve production efficiency.
RFID Technology in Garment Production Line Management Application
Authors: Li Chun Nuan , Zhao Qi
Published: June 2012

Along with the further development of Chinese garment industry and labor shortage intensifies, urgent requirement of clothing enterprise change management means and raise the level of management, the enhancement enterprise's core competitive ability. This article from the RFID technology characteristics and basic working principle of RFID technology, expounds the garment production lines in the management of the workshop monitoring, productivity and data analysis of the important role of RFID technology, presaged in clothing enterprise management innovation of triggered before wooed.
Manufacturer Technology of Dense Chinese Fir Laminated Veneer Lumber (LVL)
Authors: Yao Chi Qiang , Yu Li , Li Yan Jun , Xu Shi Ke , Du Lan Xing
Published: June 2012

Dense Chinese Fir LVL was manufactured from Chinese Fir veneer which was impregnated with laboratory prepared water soluble phenol formaldehyde(PF) resin. The influences of various processing factors on properties of dense Chinese Fir LVL were explored. It is showed that the mechanical properties of dense Chinese Fir LVL first increase and then decrease with the increase of drying temperature and hot-pressing time. Plank performance becomes higher with the increase of compressibility and hot-pressing temperature. The optimum technological parameters for LVL process are set.
Production Efficiency Promotion Model of Multi-Product and Small-Batch Machinery Manufacturing Enterprises
Authors: Chao Yu Fang
Published: June 2012

There are a number of factors which affects the production efficiency of multi-product and small-batch machinery manufacturing enterprises; they should enhance their efficiency not only from aspect of production and material supply. This article described business processes of multi-product and small-batch machinery manufacturing enterprises and studied all kinds of factors, which impact the production efficiency of multi-product and small-batch machinery manufacturing enterprises by systematic method and constructed productivity promotion model from aspects of customer development, product design, production, processing and material supply to systematically increase production efficiency.
Intelligent Inspection System on Information Equipment in Smart Grids Based on IOT
Authors: Fu Ping Ping , Chen Xue Wen , Liu Zhen , Chen Yan Qing , Zhu Li
Published: June 2012

To automatically obtain the real-time data of electric power information equipments and improve management level on intelligent inspection, a technical framework based on internet of things (IOT) is provided for information equipment inspection in electric power system. It provids new data sources efficiently and improves intelligent inspection level. Architecure of the proposed three layer framework is given. And key technologies and functions are discussed. Finally three layer software constuct is illustrated. After the upgrading the existing system, the results show inspection system based on IOT is more secure, reliable, and easy to use and maintain. All of these features embody the meticulous management of information equipment. The study accelerates the application of IOT in smart grids.
Approach for Multi-Objective Flexible Job Shop Scheduling
Authors: Hui Hong Jie
Published: June 2012

A multi-objective scheduling method based on the controlled Petri net and GA is proposed to the flexible job shop scheduling problem (FJSP). Function objectives of the proposed method are to minimize the completion time and the total expense and workload of machines. Firstly, a Parikh vector based approach for Petri net controller is introduced, and based on this method, the Petri net model is constructed for FSP with machine breaking down. Then, the genetic algorithm (GA) is applied based on the controlled Petri net model and Pareto. Finally, simulation results based on an example show that the method is efficient.
The Quality Prediction in Small-Batch Producing Process Based on Weighted Least Squares Support Vector Regression
Authors: Yan Chao Yong , Yu Yao Jun
Published: June 2012

A novel quality prediction method with mobile time window is proposed for small-batch producing process based on weighted least squares support vector regression (LS-SVR). The design steps and learning algorithm are also addressed. In the method, weighted LS-SVR is taken as the intelligent kernel, with which the small-batch learning is solved well and the nearer sample is set a larger weight, while the farther is set the smaller weight in the history data. A typical machining process of cutting bearing outer race is carried out and the real measured data are used to contrast experiment. The experimental results demonstrate that the prediction accuracy of the weighted LS-SVR based model is only 20%-30% that of the standard LS-SVR based one in the same condition. It provides a better candidate for quality prediction of small-batch producing process.
Study on Planning and Design of Production Facility for Bearing Manufacturing Industry Based on SLP
Authors: Huang Zong Xiang , Luo Hao
Published: June 2012

based on characteristics of production flow of bearing manufacturing, via comprehensive utilization of SLP tool and by calculating logistics quantity of bearing manufacturing, this paper works out the operating unit logistics and non-logistics correlation diagram based on analysis of benchmark interrelationship, and then it gets the comprehensive correlation among production facilities. In addition, the operating unit’s location interrelationship scheme of bearing manufacturing industry is made. In this way, planning of production facilities of enterprise can be more reasonable, thus production efficiency can be improved and production cost can be reduced.
Study for Inventory of Supply Chain on the Basis of Newsboy Model
Authors: Li Dan , Lu Shi Chang , Liu Shi Wei
Published: June 2012

There are many uncertain factors for supply chain inventory, and analyze the influence factors of the inventory. Build cost model according to the newsboy model and improve the model. Put forward corresponding solutions on influence factors for inventory.
Research on the Framework of High Performance the Internet of Things Based on Multilevel Disaster Recovery
Authors: Ju Hong Yao
Published: June 2012

The ability of disaster recovery and fast response is the key elements to measure the internet of things performance. With studying these technology, including load dispatching, composite gateway, cluster, data mirroring, and so on, round-robin dispatching, address mapping, load balancing cluster, and virtual private network technology are integrated. Thus, multilevel disaster recovery network, which is that business services and business processing system are processed independently, is built successfully. Therefore, distributed and synchronous data transmission of the internet of things and efficient access are solved. These targets of cross region disaster recovery of the internet of things and fast response of a large number of concurrent access are realized. The safety and continuity of the internet of things data service and application service are improved.
The E-Commerce System and its Evaluation of Manufacturing
Authors: Liu Hui , Wang Chuan Mei
Published: June 2012

In this paper, Electronic commerce (e-commerce) systems application of manufacturing industry is summaried; e-commerce system of manufacturing is introduced. Efforts to develop measures the success of e-commerce system of manufacturing have been hampered by many obstacles. The purpose of this study is to develop a comprehensive model and instrument for measuring e-commerce systems of manufacturing with user satisfaction as one of the antecedents. Also, based on the analysis of features and users’ behavior change of manufacturing e-commerce systems, the basic indexes of systems success measures of e-commerce manufacturing were constructed. Also we integrated the basic indexes into a structural model of systems success evaluation of Chinese e-commerce manufacturing. Furthermore, the method is put forward to analyze the mutual influence relationship of the indexes. The work of this paper is of important meaning to manufacturing companies and e-commerce systems success researchers both in realism and academic study.
Use PLC to Optimize Electrical Control System of Gear Processing Machine
Authors: Zheng Sheng Li , Li Guo Hui
Published: June 2012

In this paper the developments of gear—manufacturing machine tool in our country and the features of the PLC control system are introduced. Furthermore giving some example are illustrated the PLC’s control system applied in gear—manufacturing machine tool’s electric control.
Research on Network Manufacturing Resources Optimization Deployment
Authors: Song Xiao Na , Sun Shu Ai , Liu Hai Chao
Published: June 2012

Networked manufacturing environment, making the task decomposition and exist out of line manufacturing cell optimization problem, propose a pre-matching rules and genetic algorithm combined with the resources optimal deployment method. In the process the task decomposition process layer by layer from the pre-match rules for task decomposition process and manufacturing units to form the pre-matching set of manufacturing unit, and when complete the task decomposition process generates the appropriate set of pre-matching manufacturing unit and then use genetic algorithm solution to processing costs, transportation costs, processing time and transportation time to build a multi-objective optimization model; to simplify the calculation, the multi-objective problem by the weight method into a single objective problem; calculated from the manufacturing unit eventually chooses the optimal set of manufacturing cells combination, making the process task global optimum processing route. Finally, exemplify the feasibility of the method.
Modal Analysis and Experiment on 2.0 MW Wind Turbine Gearbox
Authors: Wu Guo Yang , Jiang Cheng Rong , Liao Yi Jian
Published: June 2012

By using Solidworks, a three-dimensional solid model of the wind turbine gearbox is established. Use Spring element in ANSYS joins transmission system and case structure system, the whole gearbox coupling dynamic model is built up and the first 20-order bound mode of the gearbox is calculated. Through modal analysis and experimental test show that the structure of wind turbine gearbox is reasonable, and resonance wouldn’t occur during the operational process, ensure the reliability of the unit operation and that for the wind turbine gearbox structure design to provide the theoretical basis.
Application of Proteus Simulation for the Stepper Motor Control in Experimental Teaching
Authors: Wan Wen
Published: June 2012

In order to improve the traditional single-chip microcomputer practice teaching, this paper presents a simulation experiment of the stepper motor control using both of assembly code and C language at Proteus and Keil C51 platform. With the advantages and facility of Proteus, students can reduce the time and costs of development. The teaching practice shows that application of Proteus in experiment teaching is good for improving the efficiency of experimental teaching and the effectiveness of teaching, increasing students’ abilities and awareness of innovation.
Achieve of Torpedo Shell Parameter Model Based on Secondary Development of UG
Authors: Li Nan , Zhao Yun Peng
Published: June 2012

Torpedo shell Modeling is a very important part in the design process. However, the traditional method of torpedo shell modeling is only the GUI of CAD drawing software. If there is change in individual parameters, designers have to start again from scratch. Such method will waste of resources. This paper set up the torpedo shell parametric design process with secondary development language UG / Open API, and user-oriented menu creation tool UG / Open UIStyler of UG,which is a three-dimensional modeling software, So that designers can be directly obtained three-dimensional model of the torpedo shell needing to enter the necessary design parameters. Meanwhile the designers can save design resources, and it helps optimize the latter part of the torpedo shell design.
Computing Offsets of NURBS Curve and Surface
Authors: Yue Ying , Jia Jun
Published: June 2012

This paper presents an algorithm for the offsetting of NURBS curve/surface. First the unit normal vectors of the progenitor NURBS curve/surface is computed precisely, then the offset curve/surface can be obtained by offsetting the progenitor curve/surface in the normal vector direction with the required distance. Considerable extra computational time can be saved, especially when they are to be offset by several times. As the method successfully computes the unit normal vector of the progenitors, the offset error of this method is zero. The method can also be generalized to other degree NURBS curve/surface.
Adaptive Sampling Strategy for Free-Form Surface Based on CAD Model
Authors: He Gai Yun , Jia Hong Yang , Guo Long Zhen , Liu Pei Pei
Published: June 2012

The digital measurement of free-form surface is the key to machining quality inspection for surface parts, and the basic requirement of digital measurement is how to realize the adaptive distribution of sampling points with the curvature feature. The traditional sampling methods were limited to the surface known mathematical model. This paper was concerned with free-form surface sampling with CAD model. Firstly, an algorithm of extracting data points from free-form surface was proposed, which transformed the free-from surface into intersection lines. Secondly, the B-spline interpolation was utilized to acquire the parameter expression of each line. Then the curvature measure function was defined on the basis of the curvature and the spline mass was determined taking the curvature measure as density. A new sampling method was presented based on dividing the spline mass equally. On this basis, the sampling process for surface was formulated, which realized the adaptive distribution for surface based on CAD model. The computer simulations show that the suggested method can approximate the curves and surfaces with higher precision comparing against other sampling methods.
Design of High Dimensional Nonseparable Compactly Supported Wavelets with Special Dilation Matrix
Authors: Li Lan
Published: June 2012

In this paper, a new method to construct the compactly supported M- wavelet under a mild condition are given. The constructed wavelet satisfies the vanishing moment condition which is originated from the symbols of the scaling function.
Application of Single Neuron Adaptive PID Control in Electro-Hydraulic Position Servo System
Authors: Yan Chao Yong , Yu Yao Jun
Published: June 2012

Currently used electro-hydraulic position servo system has more serious non-linear, time-varying parameters and external load disturbance, through the establishment of the system's mathematical model, designed the single neuron adaptive PID controller. Simulation results show that the improved system response speed, steady-state error is small, you can adjust the PID parameters online in real time and good control effect.
Improvement of Wind Speed Measurement Model by Meteorological UAV and System Design
Authors: Zhou Shu Dao , Jin Yong Qi , Wang Ying Qiang , Wang Min
Published: June 2012

At present, the error of wind speed measurement by meteorological UAV is great, in order to solve this problem, this paper identified the major sources of error by the analysis of the wind measurement model. Found that the airspeed error caused by the aircraft acceleration for the airspeed is very small, so classic airspeed measurement calculations often ignore the impact of aircraft acceleration, but the value of wind speed is smaller, so that the error caused by aircraft acceleration relative to the wind speed cannot be ignored. Therefore, this article added aircraft acceleration to re-establish the airspeed measurement model, and got an improved wind speed of calculation model. In order to verify the model, the wind speed measurement system was been designed, the system design diagram and related data processing, solver method were presented.
The Designation of Programmable Direct-Current Voltage-Stabilized Source Based on Micro Controller Unit
Authors: Feng Ze Hu
Published: June 2012

Along with the rapid development of the electric technology, the direct-current power was wide application, its quality immediately influence operating performance of electrical equipment or controlling system. At present, basic link of each direct-current power is approximately same in the market. They include the alternating current supply, alternating current transformer (sometimes not to use), the leveling circuit, and the filter voltage-stabilizer circuit and so on. This article introduced the method and the principle of MCU controlling system which was used in the direct-current voltage-stabilized power, realizing the digit controlling adjustment of voltage-stabilized source and step-by-step with 0.1V under the wide output. In addition, it has analyzed the working principle to cause voltage stable and the method to adjust it. This power source has the characteristic that simple to adjust the voltage, direct-viewing to be read, stable voltage output and be advantageous for the intellectualized management.
Development of a GUI Application for the Safety Performance Test of Outdoor Fitness Equipment Using C#
Authors: Zhang Fan , Zhang Li Ping , Wang Tian Jie
Published: June 2012

A GUI application has been developed for the safety performance test of the outdoor fitness equipment using C#. Complied with the GB 19272-2011 requirements, it can be applied to fatigue performance test, stability test and impact deformation test. The application communicates with the Omron PLC via Host Link protocol and monitors the testing process. Measurement studio 2010 has been applied to the GUI application to provide engineering-specific component controls. The test report is generated via word automation and embedded in the application window; crucial data is protected from unexpected alteration.
Monitoring System Design of High-Speed Carton Packaging Machine Based on PCC and Servo Control
Authors: Wang Hui Mi , Ye Ji Rong , Liu Ming , Lin Fan Wei , Chen Wei , Chen Feng
Published: June 2012

A high-speed carton packaging machine is developed in view of the current of low-degree automation and low-speed in the packaging industry. Monitoring system of this high-speed carton packaging machine is designed on basis of B&R programmable computer control (PCC) system according to the structure of the packaging machine and process control requirements, and has automatically achieved to feed pad, feed bottles, group bottles, spray glue, package with Servo synchronization technology. The high-speed carton packaging machine has reached world advanced level in performance and packaging speed at the speed of 80 packages per minute.
Preparation and Properties of Sensing Membrane for Fiber Optic DNA Sensor
Authors: Fang Hua , Wang You Rong
Published: June 2012

To detect DNA concentration, a novel fiber optic biosensor based on fluorescence quenching was designed and constructed by using lock-in amplifier for signal measurement. The sensor head was fixed on a sensing membrane prepared by the mixture of ethyl silicate, formamide, HCl and fluorescence indicator [Ru(phen)3]2+. The optimal film-forming conditions were that the contents of [Ru(phen)3]Cl2, HCl and formamide were 2.1 mg/ml, 12 % and 16 % respectively, the aging temperature and time of sol-gel solution were 4 oC and 5 d, and the film-forming temperature and time were 4 oC and 48 h, respectively. A linear relationship between the relative phase delay Δφ of sensing membrane and ctDNA concentration was observed in range from 2.0×10-9 to 4.0×10-7 M in Tris buffer, and the detection limit is 8.0×10-10 M. The biosensor had a response time of 65 s and showed good stability and repeatability.
A Method of Detecting Circle by Improved Hough Transform
Authors: Wu Xue Feng , Fan Yu
Published: June 2012

A new algorithms for parameters of an image irregular boundary circle parameters is presented, which is based on “Curve-Approximate Method” .For a set of an image circle boundary points by image pre-processing, firstly this paper introduces a substitute variant curve approximate reputably while picking out the irregular boundary points in all points, until to fit the terminate condition. Finally, it succeeds to get the optimal estimation of parameters of a circle. Example show that the algorithms runs more quickly and automatically than traditional generalized hough transform, and a good result is obtained if the irregular boundary points is small proportion in all points of a circle.
Dynamic Analysis on the H-Type Stage Using Largrange Method
Authors: Kim Kyoungchon , Gweon Dae Gab , Hong Dong Pyo , Lee Byoungkuk
Published: June 2012

Dynamic performance in the H-type stage as precision positioning system is important specification to guarantee precise accuracy. As the range of the H-type stage has increased, the dynamic performance affects the settling time of the H-type stage. This article concentrates analysis of the dynamic modeling of the H-type stage with rotational flexure joint. The dynamic modeling of the H-type stage was analyzed using Lagrange method assumed as lumped mass-spring system. The dynamic modeling of the H-type stage was verified by the experiment.
Research on High Precision Testing System for Roller Gear Cam Indexing Driven
Authors: He Wei
Published: June 2012

This paper has adopted photoelectric conversion technology and computer application tech-nology , together with the Microsoft Visual C++6.0 software, developed a test system that consists of software and hardware, which involved the precision test and movement parameter calculating of the roller gear cam indexing driven. Experiments proved that the reliability and testing precision of this system are preferable.
Resistance Measurement Design of the Battery Based on LabVIEW
Authors: Li Gang , Xie Yong Cheng , Li Guang Sheng , Wei Ning
Published: June 2012

In order to improve the accuracy of the measurement of battery internal resistance, a lead-acid battery internal resistance measurement system was designed using the AC injection method and LabVIEW software. The system is based on LabVIEW software, design a stable sin signal produce program and data acquisition program. At the same time, Signal conditioning modules which were developed by NI were used to suppress the noise. The experiment results show that the system easy to use and has a high accuracy.
Study on Improving Resolution of Fluidic Gyroscope
Authors: Mei Chuan Zhi , Piao Lin Hua , Yu Quan Gang , Zhang Bao Li , Ding Xia , Wang Xing
Published: June 2012

This paper presents a comparative study to improve the resolution of the fluidic gyro. Using ANSYS-FLOTRAN-CFD software, the finite element simulation has been conducted by series of procedures, such as model building, meshing, loads applying and equation solving, the flow distribution in the sensitive element of the single nozzle and nozzle array fluidic gyro was calculated separately. The results show that the air outlet flow gradient of the array type nozzle increases by 1.1%, the flow velocity difference of symmetrically heat resistance wires in sensitive element increases by 14.3%; the nozzle array structure can effectively improve the resolution of the fluidic gyroscope.
A Study of the Effect of Absorbing Materials in the UHF Sensor
Authors: Guo Hong Fu , Fu Mi , Tang Jin Feng , Xu Cai Xiang
Published: June 2012

An ultra high frequency (UHF) sensor antenna with metallic shell for PD detection has been proposed and experimentally studied in this article. The impedance bandwidth of the proposed phantom is considerably improved when the metallic shell is filled with radiation absorbing material, which is based on the simulation results by Ansoft HFSS. When the height of the RAM reaches 3 cm, the proposed antenna obtains a bandwidth from 800 MHz to over 1.7 GHz with VSWR<2.7, within which can effectively detect the PD signals.
Research on Safety Monitoring System of Mine Hoist Based on VB
Authors: Zhang Xue Song , Hu Min
Published: June 2012

According to the possible problems of mine hoist in use, this paper puts forward a set of safety monitoring system. Due to the mechanical failure is the main failure types of mine hoist, the safety monitoring system proposed is mainly aimed at the mechanical failure. Through the monitoring of brake oil pressure, spring pressure, brake shoe displacement and other related parameters, mine hoist can be operated safely and stably. PIC microcontroller chip is adopted in this monitoring system to monitor spot data, and VB is used for programming software of upper machine, to analyze, and memorize data.
Person Following of a Mobile Robot Using Kinect through Features Detection Based on SURF
Authors: Chen Wan Mi , Guo Sheng
Published: June 2012

Following a person is an important task for domestic service robots in applications in which human-robot interaction is a primary requirement. Two steps will be completed if the robot needs to achieves this task. It includes detecting the target person and following it. Thus, the robot needs applicable algorithm and specific sensor. In this paper features detection and following technology based on SURF (Speed Up Robust Features) algorithm is used for person following in domestic environments. The vision system of robot obtains very good features of the target person through the RGB camera of kinect (Kinect sensor device) using SURF algorithm. And the depth camera of kinect helps the robot obtain the accurate information about the position of the target person in the environment. It uses SURF algorithm to extract the features of the target person, and match them in following frames. The proposed method is programmed in high speed hardware system and using small zone person following method in order to meet the real time requirement. Experimental results are provided to demonstrate the effectiveness of the proposed approach.
Selective Assembly for Components with Multiple Characteristics
Authors: Chen Jie , Dai Kang Shun , Xu Shu Li
Published: June 2012

Considering the limitation and production costs, the selective assembly is often used to enhance the precision of assembly of complex products. This paper presents an imporved grouping method based on MOPSO( Multi-Objective Particle Swarm Optimization) for selective assembly with multiple characteristics. The properties and quality criteria of selective assembly of components with multi-quality characteristics were analyzed to establish a mathematical model. The objective function of this model is to minimize the clearance variation in selective assembly. Fitness sharing strategy and dynamic archiving strategy are introduced to improve the solving performance of MOPSO. The method is applied to the optimization in a piston-cylinder selective assembly problem. The results show that the presented method can effectively reduce the clearance variation of of the product assembly
A High Resolution Vernier Ring Oscillator with Ultra-Low Temperature Drift
Authors: Liu Rui Hong , Shen Chih Hsiung
Published: June 2012

Nowadays, the precise measurement of the time interval between two events with very fine timing resolution is common challenge in the test and measurement instrumentation. This paper present a new high resolution vernier ring oscillator(VRO), which can measures the clock jitter as the operation temperature rises.The goal of this work focuses on the design of a TDC of temperature stable oscillator and we propose an ultra-low temperature drift of a differential delay cell oscillator based on a proportional to absolute temperature(PTAT) compensation methodology. It is very desirable to have a single integrated circuit producing a stable high resolution timing circuit over a wide temperature range developed in a standard CMOS process. By the simple concept of vernier delay line and two ring oscillators, the proposed can achieve a fine time resolution with wide working temperature. For each channel of ring oscillator, the relative delay time is fine tuned by an external VBIAS input. From 25°Cto 45°C, the maximum error percent of delay time without compensation circuits is more than 2.9%, but it with compensation circuits is less than 0.3%. The different operating temperature will affect entire circuit and the delay time of ring oscillator. A compensation circuit to reduce the variety of ring oscillator is also added. The new architecture of high resolution TDC with temperature compensated circuit is proven to be applicable in high precision clock applications which is analyzed and implemented in a CMOS 0.18μm 1P6M process.
The Background Reconstruction Algorithm of Dynamic Updating
Authors: Bai Qiu Chan , Wang Ma Hua , Ni Wei , Zhang Yu Lin
Published: June 2012

Intelligent transportation is the future direction of traffic, and the video-based vehicle detection and tracking is one of the key technologies. Traffic condition is affected by climate, light and other factors, its changes are very complex so as to affect the effect of vehicle detection. The paper puts forward a background reconstruction algorithm of dynamic updating. Through comparing the current frame with background frame, the method obtains the dynamic frame of continuous changes to build new background image, and then to achieve dynamic-updating background. And according to the background obtained, the method detects moving targets with background subtraction and it will be applied to video-vehicle detection. Experimental results show that the algorithm is very fast for reconstruction and has achieved good results in the video vehicle detection.
Research on Nozzle Array Structure Fluidic Gyroscope Sensitivity-Temperature Compensation
Authors: Wang Xing , Piao Lin Hua , Yu Quan Gang
Published: June 2012

The nozzle array structure fluidic gyroscope sensitivity-temperature compensation was researched. The fluidic gyroscope’s sensitivity temperature characteristic was analyzed in the sensitive element and two sensitivity-temperature compensation methods were compared. Then, the software compensation method was used, which based on the Single chip microcomputer technology and realized sensitivity compensation for the gyroscope output signal. The results show that after the compensation, the gyroscope’s sensitivity-temperature coefficient decreases from 1.8mV/°/s/°C to 0.1mV/°/s/°C and operating temperature range increases from normal temperature to -40°C～+60°C. Therefore, this method provides the effective way for the gyroscope practical research.
The Movement Interference Research of Connecting Rod Manipulator Based on Virtual Assembly Technology
Authors: Yao Yong Yu , Lv Chun Jie
Published: June 2012

Modeling one kind of machinery joint pole transit manipulator and using Autodesk Inventor design all the three-dimensional model, and process the virtual assemble for all the parts , correct the inconsequential configuration and the mutual interference between arbitrary two parts, display the advantage of three-dimensional design.
Review on Key Technologies of Infrared Thermal Wave Detection Technology in Parts Defects
Authors: Zhou Jian Min , Fan Li Juan , Zhang Rui Feng
Published: June 2012

Infrared thermal wave detection technology has been found to be a new type of wide attention non-destructive testing (NDT) method due to its non-contact, non-destructive, rapidity, wide imaging field and advantages of direct observation. Key technologies and the latest research progress of the infrared thermal wave technology in parts defects are reviewed in this paper. The key technologies include the heat stimulator, infrared thermal image processing, heat transfer analysis and etc. The existing problems of the technology are also pointed out.
Research on Calibration Method of Tire Dynamic Balance Detection System
Authors: Yang Jing Fang , Feng Xian Ying , Fu Hong Jun , Zhao Lian Fang
Published: June 2012

Tire dynamic balance detection plays an important part in tire quality detection area. This paper uses the two-sided balance method to obtain the unbalance of the tire. According to the engineering practice, builds kinetic model and then introduces the calculating principle and operating procedures. In order to accurately determine the influence coefficient, a calibration method without tire is put forward. Further more, this new method is able to eliminate the unbalance caused by non-quality factors to some extent. But this method is presented based on the relative position invariance of the upper rim and lower rim, even both of them are under high-speed rotation situation. Finally, the experimental data acquired from both of the two methods are compared. The calibration method without tire is proved to be more feasible, efficient and accurate.
Research of Feature Extraction in Mongolian Speech Based on an Improved Algorithm of MFCC Parameter
Authors: Chomorlig  , Zhang Ze , Xiang Yan Li
Published: June 2012

The extraction of characteristic parameters is extremely important front-end of the speech recognition system, accurate parameters extraction of Mongolian speech have the important meaning to its recognition technology development. This paper clarified Mel frequency cepstrum coefficients(MFCC) features and extraction method at first, then it will treated with the first-order and second-order difference, after that, combining these parameters will get a new feature parameter vector. Analyze and extract this eigenvector from Mongolian speech signal by means of MATLAB. Experimental results reveal that the more the feature parameter is, the more precise the description for static and dynamic characteristics of ear to speech is.
Design and Analyze Device QCM-DEP Chip Seprarating Nano Particles
Authors: Chen Yung Chou , Chien Chao Heng , Lin Yu Sz
Published: June 2012

This paper focus on biotechnology research in the separation of nano particles, the hot embossing process technology is used to design and produce a fast separation of nano particles within embedded QCM electrodes into the flow channel as one of the DEP electrodes, the DEP-QCM chip to enable rapid detection of separation. This DEP-QCM chip as a test platform to confirm the separation efficiency.
Controllability Analysis of Flexible Variable Sweep Control Wing
Authors: Xu Lai Bin , Yang Shu Xing , Mo Bo
Published: June 2012

Variable Sweep Control Wing (VSCW) was introduced to generate the rolling control moment with the sweep angle differences between the left and the right wings. Influence flexible matrixes were generated to obtain the deflection of the effective angle of attack (AOA) of the flexible swept wing. Comparison between aileron control surface and VSCW shows that VSCW can get benefit from wing flexibility, which degrades the control effectiveness of the traditional aileron. The main advantage and difference from the traditional aircraft is that VSCW has higher control effectiveness and can prevent control reversal especially at high flight speed range; and at low speed, with an AOA variation device VSCW can get similar rolling control performance compared with traditional aileron control surface.
Research on Nozzle Array Structure Fluidic Gyroscope Signal Extraction Circuit
Authors: Wang Xing , Piao Lin Hua , Yu Quan Gang
Published: June 2012

The nozzle array structure fluidic gyroscope signal extraction circuit was researched. To acquire output voltage signal from the gyroscope angular rate sensitive element, which had enough sensitivity to detect, the signal extraction circuit was designed. Then, the circuit function and principle for each module was analyzed. The signal extraction circuit is composed up bridge circuit, voltage regulator circuit, amplifying circuit and filter circuit. The experiment results show that using the signal extraction circuit, the sensitive element output sensitivity is 10mV/°/s and linearity is 4.8% from the first stage. Therefore, the signal extraction circuit realizes the transformation from angular rate signal to the voltage signal and eliminates effectively noise jamming from the external environment, which provides the foundation for the fluidic gyroscope compensation circuit.
A Simplified Model of Inertial Navigation System for Underground Pipeline Track Instrument
Authors: Zhang Yong Quan , Lu Gui Ying , Wu Xiao Ming
Published: June 2012

Based on the analysis of the basic principle of traditional inertial navigation technology, this paper puts forward a kind of simplified model of the track measurement which applies to underground pipeline. The model using structures of half-strap-down stable platform that composes of a single axis gyro, two accelerometers and pulse taximeter, by measuring angular velocity of pipeline azimuth, pitching angle, platform rolling angle and pipeline length, combined with self-actuated research space track, work out the mathematics model, eventually work out the space track of the underground pipeline. The experiment proves that the underground pipeline track measurement instrument which is designed based on the simplified model, can meet the accuracy requirement of the no-dig project on track measurement, and the equipment’s operation is stable and reliable.
High-Sensitivity Refractive Index Sensor Based on Simply Fabricated Single Mode Fiber Tapers
Authors: Zhou Ying Wu
Published: June 2012

A high sensitivity fiber-optic refractive index sensor based on the bi-conical single mode fiber tapers is proposed and demonstrated. The relationship between the resonance wavelength shift and surrounding refractive index is investigated. The experimental results show that the resonance wavelength linearly shifts toward longer wavelengths with the environmental refractive index ranging from 1.333 to 1.380. The response sensitivity increases with the decrease of the waist diameter of the tapered fiber. The proposed sensor is easily fabricated, compact and may be useful for the chemical and biotechnological industry.
Research of Ultrasonic Image Evaluation Based on Defect Dimension
Authors: Dong Wei , Yu Liu
Published: June 2012

Objective method of image quality evaluating is necessary for the research of ultrasonic imaging quality of different ultrasonic testing method, and deterministic calculation method is essential for the defect analyzing of ultrasonic image. Defect analyzing method of ultrasonic image is researched by threshold segmentation, noise point rejecting and area filling. Experiment results indicated that the defect position and size can be adjudged by the ultrasonic image.
Detection Research on Weak Stress Wave in Rock-Soil Based on Quasi Distributed Optical Fiber Sensing Technology
Authors: Sun Chong Feng , Li Zhi Hui , Jiao Su Min , Wang Xue Mei , Wang Cai Hong , Xu Xiao Guang
Published: June 2012

To detect low-pressure dynamic loading in rock-soil, optical fiber Michelson interferometer was adopted to set up the sensing system. Polyurethane package was used to enhance stress sensitivity of optical fiber sensors that composed quasi distributed optical fiber detection system. The sensitivity of optical fiber senor reached -170dB, and met the measurement requirement of low pressure dynamic loading at 0.001MPa-0.01MPa. The results proved that it was feasible to detect low-pressure dynamic loading using the designed optical fiber sensors. It provides a new experiment method for research on response of low-pressure dynamic loading in geotechnical engineering.
Pedestrian Detection Based on Histograms of Oriented Gradients in ROI
Authors: Ge Ping Shu , Xu Guo Kai , Zhao Xiu Chun , Song Peng , Guo Lie
Published: June 2012

To locate pedestrian faster and more accurately, a pedestrian detection method based on histograms of oriented gradients (HOG) in region of interest (ROI) is introduced. The features are extracted in the ROI where the pedestrian's legs may exist, which is helpful to decrease the dimension of feature vector and simplify the calculation. Then the vertical edge symmetry of pedestrian's legs is fused to confirm the detection. Experimental results indicate that this method can achieve an ideal accuracy with lower process time compared to traditional method.
Fault Detection System and Reliability Analysis for Chain-Type Tool Magazine
Authors: Hu Ye , Yang Zhao Jun , Zeng Xiao Ming , Song Peng Fei , Ma Yu Peng , Wang Yang , Lou Qiao
Published: June 2012

By analyzing the structure features and tool changing process of a large-scale national Automatic Tool Changer (ATC) with a chain-type tool magazine, a chain-type tool magazine reliability test bench is designed with a new fault detection system, where a new failure data collecting method is applied for taking failure data statistics and reliability analysis. This set of fault detecting and reliability analyzing system not only provides a way for ATC to predict system faults, but also creates good conditions for further ATC reliability research.
Study of Silicon Substrate Microspheres Reactive Ion Etching Technique
Authors: Peng Dong Sheng , Chen Zhi Gang , Tan Cong Cong
Published: June 2012

The paper studies the microspheres etching technique, the silicon pillar arrays are fabricated using polystyrene particles as etching mask by Reactive Ion Etching. Obtained the substrate can be Lateral epitaxial. The influence of different parameters in etch process are investigated on silicon pillar arrays in detail. A large-area Si pillar can be obtained on Si substrate by controlling the suitable etch parameters. The approach reported here offers a possibility to product large-area pillar.
Research on the Electronic Tunneling in Asymmetric Dual-Quantum-Well
Authors: Bu Xia Zheng , Wang Jian , Shi Ju Liang , Zhao Hui
Published: June 2012

An Al0.3Ga0.7As/GaAs/Al0.3Ga0.7As/GaAs/Al0.3Ga0.7As asymmetric dual-quantum-well structure was designed. The barrier thickness between the dual quantum wells is 48Å, it is thick enough to inhibit the mutual cross-interference between the energy levels within the two quantum wells. This material system was grown on a GaAs substrate by solid source molecular beam epitaxy, and the device was fabricated with rat electrodes using inductively coupled plasma etching mesa process. The tunneling effect that electron transfer through the dual-quantum-well structure was observed in the device I-V feature, it was calculated and demonstrated by transmission matrix method and Ariy Function numerical transform.
Determination of DMMP Using a Polymer Coated QCM Sensor
Authors: Li Wei , Wen Xiao Yan , Li Shan Mao , Wang Xin , Wang Ji Zhang , Tang Hui
Published: June 2012

A quartz crystal microbalance (QCM) modified with a thin layer of fluorinated polymer was utilized to determine dimethylmethyl phosphonate (DMMP). Determination was based on the frequency shifts due to the adsorption and desorption of the compound at the surface of modified quartz crystal electrode. Fluorosiloxane was utilized onto the surface of the sensor. The frequency shifts were linear against the concentration of DMMP within the concentration range of 30~210mg•m-3. Good selectivity and sensitivity were obtained with the sensor for DMMP. The detection limit was 10.1 mg•m-3.
Study on Track Control to the Multiple Degrees of Freedom Mechanical Arm of the Sampling Machine for Coal at Railway Carriage
Authors: Tong Zhi Xue , Shi Li Chen , Yang Jing , Zhang Li Gang
Published: June 2012

The multiple degrees of freedom mechanical arm of sampling machine for coal at railway carriage is driven by hydraulic press. It is a kind of joint. During working, the sampling head not only keeps in its poses, but also moves along a straight path. The mechanical arm’s motion is resolved into three independent motion systems, foundation rotation, straight motion of 3 degrees of freedom kinematics chain, and servo control system of the sampling head. A group of motion equations is set up. According to the reversion theory and optimization method, the motion control model is built up in order to reappear the motion track. The method is efficient to solve the motion control problem. And the result of driving curve is more suitable for the hydraulic system. This method is useful for motion intelligent control of different kinds of joint manipulator.
Logical Structure Analysis of Intelligent Measurement and Control System Basic on Personification Theory
Authors: Liu Xiao Dong , Li Ya Rong , Yang Bao Qing
Published: June 2012

To analyze the intelligent measurement and control system in real world theoretically and overcome the disadvantages, where the high-general and abstract models are lacking for the analysis, guidance and description, a structure model was proposed based on personification theory. In this model, several major functional units of system were extracted using human body system as the analysis prototype. And three aspects of U(structural unit set), S(service set) and R(the relationship set) were discussed. The theory analysis suggests that this model has general, abstract, analyzable and guidable characteristic for analyzing intelligent measurement and control system.
Optimal Design of a 6-DOF Motion Simulator Based on Formulating Dynamic Index
Authors: Liu Guo Jun , Zheng Shu Tao , Liu Xiao Chu , Han Jun Wei
Published: June 2012

Gough-Stewart platform (GSP) has been extensively used as motion simulators. In order to get good performance of the motion simulators, the dynamic characteristics are needed to be considered in the design process. This paper established a dynamic dexterity index based on the generalized mass matrix in the joint space, which is invariant under the change of units and has a physical meaning. The dynamic dexterity indexes can also be established in the similar way as other parallel robots with the only pure active joints. In the last, a motion simulator is optimized based on the dynamic dexterity index to satisfy the customer’s requirements by using real-coded genetic algorithms.
The Device Design of Driving Cars Astern Based on the Wireless Sensor Networks Node
Authors: Xin Zheng Hua , Lu Hong Mei , Hu Liang Yi , Zhou Jing
Published: June 2012

This work uses a Wireless Sensor Networks(WSN) module to design the device of driving cars astern. The WSN node integrates MCU CC2430 and MCU C8051F120. CC2430 has 2.4 GHz IEEE 802.15.4 compliant RF transceiver. The device of driving cars astern can play a more important role when CC2430 communicates with C8051F120. This paper shows how to design an device of driving car astern. It should be applied widely.