This paper presents an integrated passive sensor tag for intelligent concrete temperature control. The sensor tag is based on EPC Generation-2 UHF communication protocol and operates in passive node. Except the antenna and matching network, the other blocks including RF/analog frontend, digital baseband,...

This paper researches the integrated optimization of flexible job shop scheduling problem (FJSP) and equipment maintenance plan. The object of the integrated optimization model is to pursue the minimum of makespan. The paper proposed a two-stage algorithm based on the genetic algorithm to solve the problem....

In the process of surface reconstruction, the least squares fitting surface often produces singular matrix and it will cause a failure surface fitting. In this paper, we propose a new surface reconstruction method based on hierarchical surface. We first construct a low-order surface to interpolate data...

Radio frequency identification technology has characteristics of non-contact, flexible radiation direction, efficient speaking, reading and writing data, large information storage capacity, which has attracted many researchers to introduce library information management technology into the library in...

Intelligent mobile platform is as a mobile wheeled robot driven platform, which has important research significance for the research of mobile robot. In the paper, STC89C52 microcontroller is adopted as the main controller, and an intelligent mobile vehicle is designed combined with the photoelectric...

Affected by the global climate change, storms, droughts and other extreme weather occur frequently in recent years. This extreme climate affects the Yangtze River a lot, leading to extreme water levels of Yangtze River occurrence frequently. Changes in extreme water level of the Yangtze River have a...

Quality of software requirement is an important factor to safety of aviation equipment software. With the increase of software complexity, Artificial software requirement analysis is difficult to find requirement defect caused by multi state combination, multi fault concurrent, multi condition conflict...

The tracking and speed measurement of floatation froth is important for the control and optimization of floatation industry. A new tracking and speed measurement method based on features and spatial relationship is proposed in the paper. The salient bubble objects are extracted from frames, and they...

With the wide application of the autonomous ground vehicles (AGVs) in the military and civilian areas, the autonomy requirements such as autonomous self-awareness, self-planning and self-control are increasingly considered. The autonomy evaluation has been one of the key issues in the research of the...

The vector control of interior permanent magnet synchronous motor (IPMSM) needs detect the position of rotor. In this paper, the position sensor of IPMSM is rotating transformer and we designed the decoding circuit based on AU6802N1.At last, we measure the rotor position through the control system based...

In this work, the ground-based GPS data in the West of Taiwan Strait was used to remote sense atmospheric Precipitation Water Vapor (PWV) in Fujian, and dynamically analyzed the spatial pattern change characteristics of PWV, combined with meteorological data, in order to quantitatively analysis the relationship...

Based on cloud computing architecture and future network service resource architecture using the OpenStack open source framework, design an Service Innovation Platform which can manage development tools and application programming interface in many aspect. Maximum collecting the dispersed, isolated service...

The detection of interface between water and oil is of great significance for the heavy oil exploitation. However, the existing detection techniques have some drawbacks, such as poor efficiency and low accuracy. A new interface detecting method based on the Heat Transfer Rate between oil and water is...

An interface detection method based on fusion boundary enhancement is proposed, and can be used to extract the oil water interface in the test tube accurately. Boundary extraction is carried out by using differential operators, morphological operations of image processing. The fusion of Sobel differential...

The limestone Detection System is developed by Qt assisted by Qwt and Modbus protocol based on Linux platform. The system can detect activity of limestone and PH value in real-time. This article begins with a brief description of the background and the functional requirements of the system, given the...

In this paper, the vector control theory of PMSM is studied, and the double closed-loop control system of PMSM is designed. By analyzing the mathematical model of PMSM, vector control principle and control strategy based on vector control, the control strategy and realization method of this paper are...

This article proposes a tracking algorithm based on mean shift and particle filter according to the characteristics of moving vehicles. Firstly, the algorithms establish auto target motion model that the core is RGB color histogram. Secondly, using the Bhattacharyya distance measures similarity of particle...

This paper investigates the microstructure and friction-wear behaviour of Scapharca subcrenata in order to obtain useful information regarding the tribological properties of composite materials. The experimental results have showed that the relationship between the friction rate and surface roughness...

This paper investigated the microstructure and composition of Argopecten irradians through X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and energy spectrometer (EDS), and measured the hardness and tribological properties of Argopecten irradians using nanoindentation and...

As a solid state joining process, friction stir spot welding (FSSW) has a strong potential to be applied in the aerospace and automotive industries. Mechanical property of the FSSW joint takes important influence on connection performance. In the present paper, numerical simulation model of mechanical...

In order to study the mechanical performance analysis of double-layered high-strength stirrup confined concrete columns of different cross-section, using ABAQUS of finite element software for numerical simulation and experimentally comparison methods to analyze different stirrup characteristic value...

The virtual prototype of circular vibrating screen was Established, and the overall structure and working principle of the device were described in detail.The natural frequency of circular vibrating screen was obtained by using finite element analysis software ANSYS to modal analysis,which can provide...

It established APD(Air power drive) starting drive dynamics model. The APD system is put forwarded to improve the vehicle starting drive efficiency. We analyzes the APD working principle, adds a air power and researches for the basic simulation of control model with slip-rate based on PI control theory....

Aiming at the issues that the big intensity of labor, large number of workers, low product efficiency and the quality refractory in the fire-proof material production enterprise in casting sprue clay pipe production pipe molding process in subsequent processing. A system of cutting and stacking of casting...

In order to improve the accuracy of fault diagnosis, this paper puts forward a method of wavelet packet combining neural network fusion. By wavelet packet decomposition and reconstruction of normal and fault vibration signals of aero-engine rotor, the feature vector from the vibration signal can be extracted....

Start-up mark is an important factor leading to woven defects. The reasons of start-up marks were discussed. At present, cloth fell displacement is a main factor to produce start-up marks for a loom. The relationship between cloth fell displacement and its influence factors were studied. Intelligent...

A new method is presented for variable duty cycle of photovoltaic subregional maximum power point tracking(MPPT).It has combined the advantages of the popular MPPT method ,In different areas of photovoltaic power generation using different duty cycle control method, Optimization of the target area using...

In allusion to such problems in the athletic performance prediction as “poor information”, “small sample” and “dynamics” difficult to solve through traditional statistical methods, the application of the grey model will more effectively and accurately solve the above problems. However, the application...

As to solve the issues of insufficient training data and initial parameters sensitive in existing protocol anomaly detection based on hidden Markov model, presenting a new protocol anomaly detection method based on improved genetic algorithm and hidden Markov model. First, the local competitive selection...

Intelligent circuit breaker is one of the most significant devices in the electric system, and its stability and reliability are quite significant for the operation of the power grid. An online monitoring and fault diagnosis system based on the vibration signal of virtual instrument technology is proposed...

The automation and intelligence of the overhaul technology are related to the level of the whole substation automation and intelligence. Aiming at the problems of low automation level of substation high-voltage equipment overhaul, this paper mainly studies robot-based live overhaul technology. The design...

In this paper we propose one method for mechanical vibration signal analysis. The given mechanical vibration signal is firstly decomposed into several intrinsic mode functions (IMFs) by the empirical mode decomposition (EMD) method. The Hilbert transform of each IMF, calculated by a recently developed...

The repairable system is influenced not only by the depth and breadth of repair, but also by operating conditions, work intensity, mode of operation and many other factors. The failure strength of the system will change once the maintenance effect is significant. And the segmented point process model...

With the rapid development of IT technology and Internet, Network security has become an unavoidable issue, the pure firewall strategy can't satisfy the need of safe and highly sensitive departments. The network defense must adopt a deep, various means, intrusion response technology research has become...

Fluid-structure coupled methodhas beenapplied to research the aeroelastic stability of compressor blades, and the effects of high-low altitude on blade flutter characteristics are investigated through comparison. Results show that, thesefrequenciescorresponding to displacement, elastic strain of blade...

The installation tool for SF6 circuit breaker closing spring is characterized by: diameter of the annular outer end cap is larger than that of the concentrically arranged annular inner end caps; there are multiple circumferentially evenly arranged support rods fixed between them; there are also many...

Fault simulation is an important part of power system dynamic simulation, fault models in fully dynamic simulation software of power system simulates all kinds of symmetric and asymmetric complex faults by fault branch admittance matrix. Handling multiple faults and random faults by admittance matrix...

The isolating switch is a device of isolating voltage in order to ensure the safety of the maintenance work of high voltage apparatus and equipment. It is installed by bolts on the mounting rack of electric equipment. The isolating switch is exposed outdoors and always affected by wind, rain, dust and...

According to practical requirements of the network security monitoring, this paper based on flow streaming technology to analyze and research the network anomaly flow. From the perspective of network security, this article introduced the principle of NetFlow technology and the implementation of the collecting...

The engine idle speed control is one of the most important challenges in the engine control fields, essentially the engine idle speed control is a nonlinear, time-varying, complex and uncertain dynamics control problem, the present study the idle speed control problem for improve the gasoline engine...

The modeling method is commonly used in the simulation of engine at home and abroad, the engine which is used for auto control and performance analysis model. It includes static and dynamic modeling methods, such as engine nonlinear autoregressive model, the average model, the chart model and hybrid...

The paper takes side panel cracks of large-scale vibrating screen as research object. The side panel vibration signals have been de-noised and the wavelet packet energy feature has been extracted in Matlab with wavelet analysis theory. Meanwhile, the fault characteristics is sent to genetic neural network...

Since conventional methods cannot resolve the complex problem of airborne equipment development, the Hall for Workshop of Meta-Synthetic Engineering for the demonstration of airborne equipment development is built in this paper to improve the scientificity of the demonstration of airborne equipment development,...

With the shortage of water resources in China, water-saving agriculture has been highly addressed and developed by the government. This paper studies the channel structure of a helical micro pressure drip irrigation emitter, focusing on the tilt and tooth chamfer’s angles within eight different combinations...

In this paper, two-steps forging is used to manufacture duplicate gear blank. The simulating of the second step forging process is based on DEFORM which is a finite element software. The forming parameter range was determined while the forging force was predicted. Using a set experiment tool of closed-die...

In industrial production, material level control of ball mill are normal operation of ball mill is of great significance. In view of the ball mill run time nonlinear, big inertia and strong coupling characteristic, studied a kind of fuzzy PID based on PLC - 300 ball mill feeding control algorithm, based...

The sealing detection technology for no leak detection interface specimen was introduced, such as bubbles leak detection, back pressure leak detection, advance helium leak detection, fluorescence permeation leak detection and inside helium source leak detection, including their principles and specialties....

The measurement accuracy of the articulated coordinate measuring machine (AACMM) is different in different sub measurement regions. In order to improve accuracy, The method for dividing and merging of sub measurement region based on Density-Based Spatial Clustering of Applications with Noise (DBSCAN)...

Based on the variable forward-swept wing configuration, this paper utilizes a variable forward-swept wing mechanism with a double slideway, which makes it possible for the aircraft to switch among orthogonal wing, forward-swept wing and delta wing freely. The general configuration of the variable forward-swept...

Due to the special requirements of the clutch friction plate production, the previous manual operation has been unable to meet the actual production requirements. This paper designs a control system for friction plate forming equipment aiming at different types of automobile clutches, by using the PLC...

With the increase of the capacity of the generator, the electromagnetic force of the stator end winding of turbine-generator is increased, which can lead to the failure of the stator end winding. Based on this report, a finite element modeling method is proposed to solve the problem of complex structure...

Traditional phase detection methods of weak signals have some problems such as high complexity and low accuracy. To cope with these problems,, this paper proposes one novel parallel detection algorithm based on multi-coupled oscillators. Firstly, the chaotic detection model and double coupled oscillator...

The development of an inspection robot for in-service steel tubular poles is described in the article. Based on the design requirement analysis to the steel tubular poles used in China, the design requirement is presented. By compared with the deferent technology, TOFD technique and magnetic wheel are...

This paper measured the propagation law of the acoustic radiation of certain airfoil blade in the near wake and obtains the noise parameters with different tip-speed ratio and measuring position by using the PULSE system. The results show that in low frequency band the rotation fundamental frequency...

For a new diesel engine cylinder head, an assembled finite element model, consisting of cylinder head and cylinder block, is constructed in the present work. By using computational fluid dynamics (CFD) analysis and fluid-solid coupling method, the flow distribution of the water jacket is achieved, as...

The paper analyzed the flow of the diameter of 72mm twin screw extruder screw-type’s field measurement from some machinery co., LTD by FLUENT software. Firstly, through established the flow channel of three-dimensional entity model by Gambit, defined the boundary and completed the meshing simultaneously....

In this paper, using the production system simulation software Plant Simulation to model and simulate an automobile engine block machining line, and then analysis the simulation data. Experimental data shows that the production line program has a strong production capacity and good economic, which can...

In this paper, a new design of a mechanical device based on inertial force is presented. The theoretical analysis and some kinetics equations are established. The dynamic characteristics of mechanical device are greatly influenced by the coefficient of friction during the moving process. Relatively low...

Water transportation are becoming more and more important in the transportation area. The ship lock is one of the most significant facilities in the inland water transportation. In this paper, different kinds of hoisting machines for the ship lock gate were introduced. Characteristics of the connecting...

Structure parameters of Flexible arm in expanding brake of pipe robot are important, which are used to effect the expanding force. Pseudo-rigid-body model is often adopted for size optimization. The relationship between stress distortion and structure parameters are analyzed by virtual principle. The...

Our paper provide select human health, food security, equitable sustainable development, local environmental quality, and energy access, livelihoods, community vulnerability, and access to clean water as indexes to evaluate whether a country is sustainable. With the research of the Intelligent Systems...

The system is set up mainly for "Online shop" and other entrepreneurs in the early stage, lack of manpower with heavy workload problem. Design a mechanical device can be used to personalize a variety of packaging materials, the size of goods. By simply provide a power source, simple manual work to complete...

The gold and aluminum (Au-Al) wire bonding is used to realize interconnection for semiconductor devices. But, sometimes, the failure of Au-Al bond wire exists. In this paper, the failure influence factors of Au-Al bonding to Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) were discussed....

Aiming at the limitation of the traditional substation in the control and management, computer remote control technology was used to ensure the personnel on duty in the remote control center can obtain monitoring information of unmanned attended substation to realize the substation intelligent management...

Recently, the sparse representation-based classification (SRC) is getting more and more attention in many fields, such as pattern classification, which has been successfully applied to face recognition. However, the essence of SRC, within face recognition, is to use the linear combination in the same...

With the LCD controller of MIPI interface widely used in portable embedded systems, this paper combines MIPI technology and Altera's NIOS II soft core processor and completes the design of IP core for the LCD controller of MIPI interface in FPGA. The IP core can be implemented image display with different...

In this paper, a rapid detection method for weak signal detection is proposed in resonant pressure sensors. The method is based on cross-correlation with a dedicated phase sensitive detector (PSD) and an improved integrator. The PSD is the sensitive resistor which is an ideal analog multiplier based...

The significance is increasing efficiency and saving energy for segmenting the long primary linear induction motor (LIM) into blocks. As the research object, a high order and non-linear model for single segment primary is built by using the finite element method (FEM), and the equations of inductance...

A novel data driven face descriptor based on point-to-subspace metric is proposed for subspace classifiers. Unlike conventional feature descriptors which are carefully designed by hand, the newly proposed method uses supervised learning to derive more robust and more discriminative descriptors. During...

Traditional access control model in building safety regulation is not flexible enough in some scenarios, especially in emergency events, which may lead to the alarm events not promptly treated. In order to solve this problem, we design a context-aware access control model which uses RFID technology to...

This article analyzes the different type of large synchronous generator excitation system and discussed the adaptability of the excitation system model of PSASP. A self-excitation model and a three machine excitation model is modeled and simulated, which proves the accuracy of PSASP model.

A type of soldering machine based on PIC-controlling is introduced in this paper, the high speed micro-controller unit (MCU) with kernel of 16F84A is adopted in PIC. The data is send to lower computer to control three axis motions by computer serial port, the process of automatic soldering is realized....

Visual navigation methods become more and more hot issues for the vehicles. Computer vision has been applied to Dead Reckoning (DR) for land vehicles successfully. Based on the principle of DR, computer vision is used to calculate the azimuth information. And displacement information from camera could...

DXF format file is a standard format of the ASCII text file, the CAD graphic data is saved accurately. A method of NC program is proposed based on DXF file in this paper, the valid data is extracted from AutoCAD DXF document in the graphics file (including straight line, circle, circular, elliptic arc,...

Along with the rapid development of Internet, network security has become one of high-profile issues in the current life. In this paper, the problem of instruction detection based on artificial immune system model and the key technologies negative selection algorithm(NSA) are discussed in detail, by...

The fault diagnosis problems for Networked control systems with multiple packet loss is studied. Residual model is designed to meet the minimum system implemented. By choosing the appropriate Lyapunov function, the sufficient conditions for the robust stochastic stability of the filter fault diagnosis...

In order to avoid overheating due to bus power supply system that will cause major accidents, we need to monitor the temperature of high-voltage switch cabinet in the narrow space. This paper designs a wireless intelligent bus temperature measurement system based on Zigbee networks. The application of...

Sparse representation has been extensively applied to image recognition, while learning appropriate dictionaries for image content representation plays a critical role in it. An approach to simultaneously learn a common dictionary and multiple class-specific particular dictionaries achieves state-of-the-art...

The choice of fuzzy rules and membership function of fuzzy self-adjusting PID controller of tunneling boring machine (TBM)’s thrust hydraulic system exists the defect of subjectivity to a great extent. The genetic algorithm (GA) was adopted to optimize fuzzy rules and parameters of membership function...

Legged robot has advantages with high degree of freedom, flexibility and strong adaptability to the ground. So this paper presents a posture in concave ground environment of a leg organization of a six-legged robot and proposes a gait planning of six-legged robot, which ensure it to move smoothly and...

The engine excitation control system has significant effect on the static stability, dynamic stability and transient stability of the power system. In power system stability calculation, the model and parameters are used to correct the excitation system. Excitation system parameters are numerous, such...

In order to better understand the power frequency electric field around the transmission lines and device, this study introduces the mathematical measuring principle of one-dimensional spherical sensor for electric field, analysis the theoretical feasibility whether the ball-type sensors could be replaced...

With the rapid development of medical and health undertakings in China, the requirement of the qualified medical service system was increasing, more and more medical had introduced the advanced medical equipment, the introduction of a large number of equipment to make the medical equipment maintenance...

Advanced greenhouse technology determines the pace of development in agriculture. However, because of differences in the region, our country is still a higher operating cost in the agriculture field, personnel technical ability is not higher factors and the popularity of intelligent greenhouse is not...

This paper mainly analyzes how to ease the Ebola epidemic and develops a drug distribution program, including the transportation destinations of drugs and other circumstance. On the basis of possessing the drugs, we need to build a realistic, sensible, and useful method in the prevention and control...

Taking the current children's playground built indoors, most exist on the background of insufficient ventilation, C51 series AT89C51 single-chip design based on a playground detected oxygen concentration display system that can help managers make timely ventilation and ventilation to ensure indoor air...

Root soil maximum static friction play as an important parameter to measure the effect of soil reinforcement.Accurate measurement of it has the higher application value and research significance. this paper takes the bamboo root bamboo developed as the researching object ,and uses a self-made device...

For the realization of the aircraft to reduce weight and improve efficiency, thin-walled structure is widely used in aerospace vehicle. Thin-walled structure under the extremely harsh environment- high temperature and high acoustic loading- can cause strong nonlinear large deflection vibration characteristics,...

With the development of economic and the growth of the city, the number of vehicles has also increased rapidly, parking problems continue testing the ability of the city's public services. To solve this problem, we hope to find a more accurate and more convenient program to find the car, so we propose...

Detection and tracking of multiple moving targets in complex conditions has always been a hot and difficult problem, which mainly includes that the tracked target is occluded, the characteristics of target and background are similar, illumination and background are changing over time, etc. In order to...

In order to ensure interior target is grabbed by the four-rotor aircraft, the camsift algorithm of OpenCV is adopted, through the recognition of the target, at the same time, the positioning of the aircraft and alignment of target are conducted to achieve grab. The target object is placed on the ground...

Knowledge of stringent value of the robot end-effector position is necessary in several industrial applications such as macroscopic structure measurement and assemblage. However, industrial robots cannot meet this challenge because of numerous errors. This paper presents a new method using quantum behaved...

With the development of computer networks, protecting the network information from a variety of attacks are becoming increasingly important as the fundamental purpose of network security. However, due to the diversity of computer networks linking having uneven distribution terminal and network openness,...

Building in operational use energy consumption including energy consumption of buildings in the course of the lighting, refrigeration equipment, power equipment and services, gas, water, elevators and the like. In energy-efficient buildings, not only to emphasize energy conservation technology, but also...

A new dynamic control model for Adaptive Front-lighting System(AFS) is presented in this paper based on pan-Boolean theory. This logical control model for AFS system is based on control practice for AFS system and is consisted by a series of control rules. Combining with PID control arithmetic, off-line...

Engineering survey, as the basis of engineering construction, is applied throughout all stages of the whole project. However, traditional engineering survey technology cannot satisfy the actual needs of modern engineering any more. Modern Engineering Survey is no longer a narrow concept to serve engineering...

Use noise and vibration measurement and analysis system for diesel engine noise and vibration testing and spectrum analysis.Draws the following distribution:Engine noise level mainly concentrated in 400Hz-2000Hz in the normal operating conditions, the noise value of each measuring point appear a peak...

In this paper, a new method was proposed to detect and model the thermal error of machine tools. This method was aimed at two mutually perpendicular direction deformation, and easily detectable deformation was used to fit the deformation in another direction. In order to verify the correctness of the...

Unity of three towers (i.e. indirect air cooling tower, a desulfurizing tower and a chimney) technology with energy saving and environmental protection, saving water and electricity, high heat efficiency characteristics and a range of promotion and application in coal - fired power generation, and achieved...

mode conversion, adaptive control, simulated annealing (SA), spatial light modulation (SLM), charge coupled device (CCD)

The method of multivariate statistical analysis is a branch of classical statistics, is a comprehensive analysis method, it can also have each other for multiple objects and the index of correlation analysis, parsing the statistical rule between them, at present has been widely applied to agricultural...

With people’s safety awareness improves, more and more security and monitoring system is need in society. The security and monitoring system designed in this paper is based on the wireless sensor network. The system can record audio, video, alarm and other signals, and the signals can be stored for future...

In order to improve the accuracy of reinforced retaining wall seismic dynamic response analysis, this paper presents a response model seismic based on dynamic parameter tensor analysis, and inversion calculation can obtain the time history response curve and the maximum peak force of the reinforced retaining...

Objective: To study the technology of auxiliary motor starting and stopping of the direct injection gasoline engine, and analyze the effect of the idle start stop system and oil saving energy. Method: the fuel saving effect analysis of the fuel saving effect of the system is analyzed by the multiple...

objective: to study the surface wind pressure of cooling tower under the condition of isolated tower and adjacent two towers. Method: wind tunnel test. Process: simultaneous pressure-measured tests on the rigid model, contrast the test results of isolated tower and adjacent two towers’ rigid model. Results...

Now, we are unable to make pig feed intake real-time monitoring and prevention of swine diseases factors, this paper designed a pig food intake measurement system based on TinyOS and wireless sensor networks. The system can realize intelligent pig, real-time monitoring through wireless nodes intake of...

In order to improve the smart grid energy efficiency and reduce the power cost, a kind of intelligent building is adjustable resource coordinate multi-objective optimization operation control model is presented through the analysis of intelligent building is adjustable resource load characteristic. The...

In this paper, a character recognition system is designed by using and the machine vision function of IMAQ Vision module in LabVIEW. The whole system includes four parts: image acquisition, image preprocessing, image segmentation and character recognition. Image preprocessing includes image gray and...

A face recognition system based on Matlab and LabVIEW is designed in this paper, which is implemented by mixed programming of LabVIEW and Matlab. This system is composed of image acquisition module, image preprocessing module and face recognition module. Face acquisition module is mainly consisted of...

The confidence machine has been an integral part of the target of the research in the field of machine learning. Confidence regression is a significant research field of confidence machine . Performs error evaluation on results of regressive learning to classify the accept field and the refuse field...

Automotive Idle speed control is a landmark application of feedback control in automotive vehicles that continues to be of significant interest to automotive industry practitioners, since improved idle performance and robustness translate into better fuel economy, emissions and drivability. As the typical...

This paper proposes a method for retrieving CAD models of mechanical parts by free hand sketches. Two shape signatures is proposed to describe the geometry and the topology of a CAD model respectively. A relevance feedback mechanism is introduced to combine the two dissimilarity distances measured by...

MPPT algorithms have been widely used in controllers of photovoltaic system. While for independent photovoltaic systems, researches focused on the charging method to batteries are still limited. Considering the power supply in continual rainy days, the capacity redundancy o batteries in photovoltaic...

Face recognition with single sample per person (SSPP) was a very challenging task because SSPP cannot reflect the characteristics of the test samples (eg. illuminations, pose, expressions and disguises) so that it is difficult to predict the facial variations of a query sample by the gallery samples....

To improve the scope range of the traditional around view monitor (AVM) systems for Advanced Driver Assistance Systems (ADAS), we propose a wide-scoped surrounding top-view monitor (STM) system with the same equipment as the traditional AVM system. In the proposed system, four wide-view cameras are mounted...

With the increasing demand of social security, intelligent moving target tracking technology play a more important role in video surveillance system. However, current moving target tracking technology works well for single camera situation but always lost targets in multi-camera environments due to the...

This article focuses on algorithm to directly and fast finding out the decision rule from decision tables by using rough set theory. The concept of relative rule is put forward and the method for finding absolute reduction decision rule through combining rules of relative decisional requirement sets...

To against the demerits of slicing methods based on STL model in 3D printing, a sheet solid slicing method of 3D models is presented. In this method, a sheet solid which thickness is equal to the layer thickness is using to intersect with 3D model, and the result of the intersection is target sheet solid...

Aerial refueling means by the loading of fuel in flight aircraft refueling systems use devices to other aircraft refueling. Currently, the aerial refueling system mainly has two hard pipe refueling system and refueling hose system. By air refueling, it is possible to increase the range and combat radius...

Visual inspection is a very important part of the flight, also is the basic skills possessed by the pilot. This paper introduces the concept of visual inspection, summarizes the basic methods of visual inspection and development and research status of eye-tracking test technology at home and abroad,...

The applications of redundant manipulator are more and more widely in the automobile manufacturing industry and aerospace fields. In this paper, the omnidirectional joint unit mechanism is improved and redundant snake-like manipulator of full range PYR series is designed. The composition, working principle,...

This article elaborates the wheel loader transmission load spectrum during the preparation of the key issues - how to determine the shape of the kernel function, chosing three typical operating conditions to illustrate the non-parametric statistical extrapolation of this process. Before sample loading...

Although the feed system of CNC machine tool is a certain dynamic system, the chaotic motion often occurs because of the function of the nonlinear factors.The dynamic model of the feed system with nonlinear spring force and nonlinear friction force is numerically simulated by using the adaptive control...

The experienced motorists know that they mustn’t drive fast when they turn in the corners; especially in the rainy slippery situations, road accidents might occur. Vehicle rollover refers to a dangerous lateral movement of a vehicle in contact with the ground when it rotates around its longitudinal axis...

In order to understand the environment and the situation of fire disaster and improve the efficiency of putting out the fire and emergency rescue, aiming at the actual demand of monitoring node location of fire disaster, a new recursive LS (RLS) localization method for monitoring fire environment based...

The vehicle steering and braking conditions, braking systems and steering systems there are complex coupling between each other, the security and stability of the vehicle will have a dramatic effect when, in order to improve the stability of the vehicle you must brake system and steering system for joint...

Starting a diesel engine must have two conditions: one is the oil is enough, good atomizing diesel can arrive the combustion chamber. The second is to make the air temperature of the combustion chamber can improve to make the diesel oil fire. Its working process contains four steps of air suction,compression,acting...

ADRC (ADRC) has excellent control performance. The paper Introduces structure and discrete algorithms of the ADRC,and describes its parameter tuning rule. The ADRC control technology is applied to attitude control system design of short-range loitering missile, from the perspective of engineering applications,...

With the global water crisis is getting more and more serious, industrial and sewage treatment are becoming the urgent problem need to be solved.In this paper, sewage treatment project of a factory is research object, the design using the upper computer configuration software from YAKONG of China which...

RSS (Received signal strength) floating is the major limit to WLAN (wireless local area network) based positioning accuracy. We proposes an algorithm based on particle filter in order to realize a WLAN/inertial sensors combined positioning system using inertial sensors in the intelligent mobile terminals....

This paper use the digital signal processor (DSP) TMS320LF2407A control chip is adopted as core of the control system. Three closed loop of the controller, namely electricity, speed and displacement, were designed. Using space voltage vector pulse wide modulation technology(SVPWM), constructed a servo...

Hybrid oil film bearing in the grinding head will be subjected to various periodic persistent excitation in the course of working of high-speed roll grinder, and this will affect seriously life of the bearing and even performance of the whole roll grinder. In order to reveal sustained dynamic response...

According to the characteristics that the paper currency image has low resolution and it is vulnerable to noise affect, the methods of paper serial number region extraction and segmentation are discussed, and multi-level 2DPCA algorithm is used for serial number recognition. Experiment results show that...

According to the characteristics of the time lag of rolling mill thickness control system, it used Smith predictor to compensate measured hysteresis. And by the internal model design method, from the perspective of the design predictive control system, and the Smith predictor and PID control method for...

In this paper, the event-triggered output feedback control problem is studied for uncertain networked control systems. Considering the full states information of system cannot be measured in practice, output feedback control with dynamic compensation function and observer-based state feedback control...

In this paper,the positioning data for large planar scanning plane were measured with laser tracker, converted the coordinate by spatial error between scanning plane and tracker , and analyzed the converted error data. For the subsequent use of the least squares method error compensation provided.

The higher order crack-tip fields for anti-plane crack oblique to the interface between functionally graded piezoelectric materials (FGPMs) and homogeneous piezoelectric materials(HPMs) are presented. The crack is oriented in arbitrary direction. The crack surfaces are assumed to be electrically impermeable....

The electrode distance variance and capacitance style pressure sensor is talked about .The change rate of the pressure is treated as judging basis of whether the fault is existed. Make the bridge output signal as the sensor’s output signal and one of the detection signal,also make the operational amplifier...

Green cutting is ecologically desirable and have been a tendency in the industry field. High temperature coolant and lubricant can be introduced in metal cutting due to its pollution-free, generating easily and unneeded disposal. This study attempts to understand the effect of high temperature coolant...

The safety of vehicle power battery is an issue of particular concern for vehicle manufacturers, consumers and especially important for the application and development of electric vehicles. This paper introduces a drop test method of power battery, proposes a test scheme used for evaluating the drop...

This paper presents a method of improving the position response speed of the servo system based on electromechanical actuator position servo system. In this paper, a novel decouple technique is derived from PMSM decouple state equation, separating direct axis current from quadrature axis current ulteriorly,...

Permanent magnet synchronous motor has replaced the dc motor in many occasions and become the mainstream in the servo system. But the dynamic model of the permanent magnet synchronous motor is a strongly coupled variable system. Permanent magnet flux in the machine under different operating conditions...

The cutting-pushing machining based on edge chipping effect is a kind of innovative machining technology, it applies stress concentration effect of precast construction mutation and broken edge effect of crack on new edge surface to process. Aim at the total difference between new machining technique...

In this paper, we propose an innovative and low-cost hybrid indoor positioning system using various sensors on the mobile platform. This system consists of a pedestrian dead reckoning (PDR) part based on the encapsulated Application Programming Interface (API) of Apple’s iOS platform and a low-cost Bluetooth...

in the studying process of fault prediction method during operating numerical control (NC) machine tool, using the current algorithm to predict fault in the running process of the NC machine tool, iteration is easy to fall into the local extremum problem. Therefore, a new method of fault prediction based...

during the study process high precision angle control in the mechanical manufacturing computer numerical control (CNC) technology, using the current algorithm to control the high precision angle of mechanical manufacturing is unable to realize the smoothing angle control, and angle control error is large....

Flow characteristic of cold fluid in supersonic combustion experiment table is studied through the method of computational fluid dynamics (CFD) numerical simulation, direct measurement of pressure transducer and TDLAS measurement. Characteristic parameters of temperature and pressure etc. of the flow...

Yield forecasting system in discrete manufacturing is a dynamic complex systems with a number of factors, face such a complex and large system is difficult to directly general system to the enterprise, therefore need to give a company's production forecast model. On the background of Wuzhong Instrument...

Expressway tunnel group compared with the independent tunnel, the operation and management is more complicated. When the tunnel had traffic accidents, if the leading scheme is not scientific, it’s easy to cause serious consequences. This paper based on the actual operation’s tunnel group as the background,...

Aiming at the environment that contains dynamic obstacles, a new multi-robot formation control method is proposed. Leader-Following method is combined with artificial potential field method to solve the poor adaptability of formation. Meanwhile, the robots’ relevant parameters are optimized online by...

Automatic identification of flaws is very important for ultrasonic nondestructive testing and evaluation of pipelines. A novel automatic identification approach of flaws using support vector machine (SVM) is presented. Wavelet transform is applied to feature extraction of ultrasonic echo signals, and...

A remote monitoring system is designed, which can remote monitor farmland in real time and make informed management decisions. The system collects data of farmland by using ZigBee modules, makes data fused by using high performance controller ARM microcontroller, transfers data to remote computer by...

Radar is an electronic device for radio detection and ranging. High resolution radar of ultra wideband will be the developing trend of new generation radar. But because of the long project time, high manufacture cost and key technologies unsolved. Thus it cannot replace the low resolution radar in the...

To improve the performance of fuzzy controller, take the historical state of error into account while setting the control rules. Firstly make a rule table (basic rule table) which considers of the current error and error change rate only, secondly, think of all the possible historical state of error...

To improve the switching characteristics of conventional structure IGBT, a new trench type bidirectional insulated gate bipolar transistor (IGBT) is proposed. The main feature of this structure is introducing a cell in collector of conventional trench IGBT. The new type IGBT reduce both turn-on and turn-off...

Test Automation is widely used. Since there are some differences between the environment of test automation and development, developers sometimes can’t reproduce bugs in their local environment based on bug reports. To solve the issue, this paper introduces an approach that integrates the environment...

The three-dimensional flow of high speed elevator is numerical simulated using the Computational Fluid Dynamics Method (CFD). The car of high speed elevator has dimensions of length 2.3m, width 1.7 m and height 2.4 m. The shape of diversion cover is conic. The flows of high speed elevator with different...

This paper studies the aerodynamic optimization of dome of high-speed elevator. A 2-D flow field of typical sections is created with Fluent software. Conic curves with different height and constraint parameters are used to fit the dome. Comparing these drags coefficients of each shape of dome, the optimized...

The three-dimensional turbulent flow of high speed elevator is numerical simulated using the static uncompressible Navier-Stokes equations. The equations are solved using finite volume method with second order upwind spatial discretization. The car of the high speed elevator is a box with the length...

A triples anomaly detection security model based on decision tree algorithm is designed for solving the issues--exist in the current network security detection models,such as lacking of filtering the events, and classifying the events in the network environment faintly.This model which based on the decision...

In order to realize the calibration measurement of universal turntable in high precision, a calibration device is designed and realized. The device was mainly composed of horizontal capacitance sensor, mental circular grating, ultrasonic motor, and double-row angular contact bearings was selected as...

Aiming at such problems as unknown goal configuration, grasp space limitation, a large number of barriers in configuration space and high-dimension space redundancy during planning motion of humanoid robot arms grasping target, this paper proposes a generalized inverse rapid-exploring random tree (GIRRT)...

Pulse-measure instrument has been widely used in our daily life. How to keeping monitoring pulses has risen to a vital important issue. This design uses infrared photoelectric sensor to measure heart rates by detecting blood which will get thicker when heart beats. The system using the AT89C51 microcontroller...

Through calculation of the finite element software, we can get the thin wall’s stress state during normal working. To constrain the displacement and improve the crack resistance of the wall width direction by the two ways of bonded and non-bonded prestressed concrete application form. Explore the working...

At last twenty seconds of carrier landing process, the carrier-based aircraft will encounter with strong carrier air wake which will easily cause a deviation in the aircraft’s path, at the same time, a carrier also has a six-degree-of-freedom motion which depends on carrier’s property and sea state [6]....

Based on the 10,000 TEU container ship, the paper makes a research on the characteristics of the bow thruster. According to the open-water propeller characteristic chart of controllable pitch propeller, the paper analyzes the lateral thrust of the bow thruster combining with the data of real ship, builds...

The sharp increase in the number of smartphones makes the fake Apps in Android platform to be an urgent issue. Many approaches have been proposed to defend against these fake Apps. However, most of them have some disadvantage, such as low accuracy, not general, or not robust in big data. This paper proposes...

A single-stage high-load fan with arc skew slot casing treatment is chosen to examine the matching between the stator and casing treatment with arc skew slot. The numerical results show that the introduction of casing treatment with arc skew slot increases the inlet flow angle of the stator, leading...

Mobile robot arm with the advantages of mobile platform and operating arm can have unlimited space and flexible operation. In recent years, the control of such systems has caused great attention in the field of domestic and foreign control. At the same time, the mobile manipulator is a typical nonlinear...

In order to solve the problem that the (OS-ELM) is used in the fault diagnosis of the transformer, the genetic algorithm (Algorithm Genetic) is applied to the on-line extreme learning machine, and a new method of transformer fault diagnosis is proposed. In this method, the number of hidden layer neurons...

Air pressure is an important parameter for the air spring on a marine diesel engine. The pressure can be indirect reflected according to the spring camber, and the spring camber means the distance variation among the measuring points of air spring. So, in order to obtain the air pressure of marine diesel...

Oil in water drilling fluid is a suitable water based drilling fluid for horizontal well, because of good lubricity, liquidity and borehole stability. Optimized and matching emulsifiers, in the2:8 ratio of oil to water, the emulsifiers OP-10+SP-80 ratio of 3:2 is the best effect of emulsion stability,...

The previous drilling practice showed that there were many drilling difficulties in igneous rock, such as less footage of one bit, lower roundtrip ROP, more tripping times, etc., which severely influenced the exploration and development process of carboniferous formation. After analysis, the reasons...

This design is wearable digital heart rate meter, the acquisition and transformation use of heart rate data in lower computer is STC12C5A60S2 MCU with high speed 51 kernel, the heart rate sensor is used in photo-electric reflective analog sensor, which adopted method combine hardware and software filtering...

In order to estimate the performance of partial casing treatments, this study improved the classic parallel compressor model, which divides a partial casing treatment compressor into a casing treatment sub-compressor and solid-wall sub-compressor in the circumferential direction. According to the characteristics...