This paper proposes an electronic part and component assembly system based on an industrial robot with binocular stereo vision. Firstly, binocular stereo vision with a visual attention mechanism model is used to get quickly the image regions which contain the electronic parts and components. Secondly,...

In this paper we present a novel method developed from multiple kernel function for short term load forecasting to integrate multi-source heterogeneous load factors in big data. Nine kinds of load factors were selected as multi-source heterogeneous factors. In the proposed method, three algorithms (the...

High integration, high power density has become the development trend of power supply. Computer, automobile and aviation often require multiple output power, in order to meet all kinds of load, and the filter of current type output for the power supply should be a larger challenge. The input voltage...

When modeling for colored noise, order number and the coefficient of determination of the model is a difficult problem, real-time computing applicability is very good, although but increased filtering calculation burden. Therefore based on the polynomial approximation theory, this paper proposes a polynomial...

In order to meet the requirements of fuse's digital simulation, an algorithm based on the electromagnetic scattering modelling technique of complex targets in the near field is proposed to calculate the echo power of fuse in missile-target encounter. The main research work in this paper involves the...

Intelligent video surveillance technology is a part of pattern recognition used for analyzing, extracting and recognizing behavior characteristics of a moving target basing on computer algorithms. The target tracking algorithm combines particle filter and Mean-shift in overlapping multi-camera environment...

For improving the traditional fusion algorithm quality and detail information, a fusion algorithm based on orientation information and pulse coupled neural networks (PCNN) in nonsubsampled contourlet transform (NSCT) domain has been proposed. Firstly, convert the multispectral (MS) image into intensity...

The tactile mechanism of texture perception is getting well figured out, resulting in the emergence of texture rendering devices. It is worth noting that the textures in these studies have interior space gap in the millimeter level and below. This kind of textures is called "fine texture". In contrast,...

The existing wireless video sensor networks tracking algorithms have much higher performance requirements of the sensor node in networks. For solving this problem, we propose a new target trajectory prediction model for non-uniform motion, which takes all the possible locations of each target at next...

To solve the problem of the fuzzy multiple attribute decision making, the improved grey interval correlation degree was proposed. In the improved method, the attribute values took the form of the interval numbers; it proposed an algorithm for comparing the size of interval numbers and used the combination...

Federated Kalman Filter (FKF), is the most widely used distributed data fusion algorithm. Whilst FKF required local systems of the same system model, which is difficult to satisfy in most circumstances. How to balance the estimation accuracy and the calculating load is an urgent problem needs to be solved....

With the development of the sensor, the sensor can get more information of targets. Therefore, Scholars start to research new information of targets and a variety of methods are emerged in the process of exploring. It is meaningful for multiple targets tracking that if the sensors can distinguish target...

Road congestion has been significantly affecting our live and environment. It is important to get the information of traffic congestion in a real time. In this study, we present an approach by the detecting the vehicles to view the traffic conditions using the satellite observing image from Gaofen-4...

In order to improve the measurement accuracy of corona noise in AC substations, the characteristics of different noise sources are measured and analyzed. Wavelet analysis method is employed to decompose the original noisy corona signal. A stop-band comb filter is designed to process the reconstructed...

A method to estimate solar energy resources was introduced in this paper. Based on the solar data observed by meteorological stations, the temporal-spatial characteristics of solar energy resources in the west of China were analysed by EOF. The main modal was determined and its time series was forecasted...

Medical image segmentation is a key issue in the field of medical image processing and analysis. Segmentation of spinal cord injury draws interests of researchers recently. To eliminate human computer interaction in segmentation of spinal cord injury, an automatic segmentation of spinal cord injury is...

This paper proposes a fast detection method for changed land using UAV remote sensing image. Firstly, a series of SURF feature points on the old time phase orthoimage are retrieved and stored into a matching database. Secondly, through the establishment of coarse - fine double matching recursive model...

In order to increase efficiency in digital design on single and small batch Spade Punch Planter, The structure and attribute set of all-level case was described based on case base and a improved the classification retrieval strategy on the multi-level case for finding optimal reused case were developed....

By applying the Conditional Random Fields based on discriminant undirected graph to character information extraction, this paper proposes an automation character information extraction method based on CRFsuite. Through learning the known domain, this method extracts the feature leading words, position...

The subspace intersection method using acoustic vector sensors [5] provides unbiased bearing estimates in a range-independent shallow ocean with the advantage of both subspace intersection(SI) method and acoustic vector sensors(AVS) array. But its robustness is poor. In this paper, an improved SI method...

At present, the domestic production of the winding workpiece automatically has been achieved, but the workpiece inspection is mainly relied on human eyes. As the workers is easy to be fatigue, which often causing error checking. In order to improve the efficiency of product inspection and found the problem...

A force estimation model using motor current signals was deduced in this paper for a tendon-driven prosthetic finger grasping objects with its distal phalanx. Models of the prosthetic finger were first established. As driving moment of each joint could be calculated form motor current, stable grasping...

A prosthetic hand with a self-regulated grip force could achieve different operation modes, which can help the upper limb amputees to fetch objects of different shapes. To get the appropriate grasping force with smaller samples and shorter training time, the method of threshold value judgment in this...

The design of a sliding mode force control system for an underactuated prosthetic hand system are addressed in this study. First, a mathematical model of underactuated prosthetic hand is developed and state equation of DC motors is discussed for force control. Next, sliding mode force control based on...

A Micro-Doppler mathematical model of the point target and radar is established in the four kinds of micro motion forms: vibration, rotation, tumbling and cone. A new method of detecting Micro-Doppler features is introduced: double pulse laser coherent detection, combining algorithm principle and mathematical...

In some researches of image fusion, the wavelet transform (WT) often contribute more useful information. The objective of image fusion is to combine relevant information from two or more images of same scene into a single composite image, which is more informative. In this paper, an image fusion method...

The higher-order statistics method can process non-Gaussian (that needs to consider non-Gaussian, colour noise, non-liner, non-minimum phase or cycling stability message) effectively. Furthermore these methods can provide more useful message than second-order statistics based methods. In this paper,...

The control circuit of two-stage power factor correction(PFC) is complex, and the volume of power supply is large because of high voltage ripple of the first stage filter capacitor. Towards to this deficiency, a two-stage PFC circuit based on chip and ARM hybrid control is designed. The first stage is...

The presence of salt-and-pepper noise in speckle image prevents the precise measurement of deformation and displacement fields in the traditional digital image correlation (DIC) technique. Spearman's rho (SR) has been introduced as a kernel correlation function in the DIC. The robustness of SR is quantitatively...

The effectiveness of chaos and fractal theory in analyzing ultrasonic nonlinear modulation signal was theoretically verified and a new way of using chaos and fractal theory in nondestructive testing is provided based on the simulation signal of ultrasonic nonlinear modulation effect. By constructing...

Due to the consideration of the existing testing technical problems for the key hidden metal components of the turbine runner chamber, such as the poor reliability and the larger detection blind spots under the downtime without opening the cover of the hydropower turbine runner chamber, an automatic...

Time-Space consistency is critical while designing hardware-in-the-loop simulation (HILS) system, due to the HILS system's Real-Time performance need. We find out that devices in HILS system can be classified into two types -- positive device and passive one. And only the positive device would generate...

In this paper, a novel topology of DC-DC converter is proposed. The working principle of the new topology is analyzed, and the voltage relation of each part of the circuit is deduced. And the comparison with the Z source DC-DC converter is performed, the feasibility and advantages of the new DC-DC converter...

This paper presents the design of high-frequency transformer isolation bidirectional DC/DC converter based on solid-state transformer (SST). A phase-shift dual-active-bridge (DAB) converter is employed to achieve high-frequency galvanic isolation, bidirectional power flow, and zero voltage switching...

ROF technology is widely applied in high speed wireless communications of large capacity, ROF system can introduce noise simultaneously, affects the system's noise figure. This paper calculated in detail the noise figure of the analog ROF transmission module, used the classic noise theory of the analog...

In this paper, a new method of maximum power point tracking(MPPT) based on impedance module analysis is presented in two-stage three-phase grid-connected PV system. The method can obtain maximum power from PV array by adjusting duty cycle of DC Boost converter based on taking advantage of internal resistance...

SSLT (Short-offset-Short-Load-Through) is a classical calibration method of VNA (Vector Network Analyser) which needs multiple assembly of the standard parts and exists the impact of the phase in the millimetre waveband. Aimed that the S11 of the two-port waveguide DUT is less than -10dB, a simple SLT...

This paper proposes a novel soft-switching dual full-bridge converter with shared lagging leg and dual outputs in series. Resonant clamp circuits are employed across the secondary rectifiers to reduce the voltage overshoots of the secondary rectifiers, as well as extinguish the primary current during...

This paper proposes an integration control algorithm with DPTC-SVM for a Dual-PWM Converter to optimize the parameters of the rectifier and inverter. The control algorithm utilizes direct power control for the PWM rectifier and direct torque control for the PWM inverter. Compared with the traditional...

In this study, the principle and influence of electrical energy meter measurement were analyzed under harmonics condition. Subsequently, a test platform was set up to investigate the impacts of three typical harmonic waveform on the performance of electrical energy meter. The electric energy measurement...

To improve the speed of modular multiplication operation on ECC processor over GF (p), the paper presented a novel hardware implementation of Montgomery algorithm. Based on analyzing basic Montgomery modular multiplication algorithm, this work applied multi-step operation to Montgomery algorithm, which...

By measuring transfer characterises before and after a given number of specific pulse cycles applied on the gate electrode for AlGaN/GaN MIS-HEMTs, the threshold voltage (Vth) instability is investigated. Furthermore, by measuring the change in transient gate capacitance (ΔC) under different pulses,...

The electrical property degradation of AlGaN/GaN MIS-HEMT, including degradation of output characteristics, a higher ON-resistance and a threshold voltage negative shift (~1.8V), is correlated with near-interface trap behaviours in SiN/AlGaN. These traps are quantitatively characterized using the transient...

The purpose of the study is to design an inductor for DC/DC converter in charging cord. In an integrated circuit(IC), the size of capacitor and resistance is easy to reduce. Thus the key is to guarantee the size and value of the inductor simultaneously. To fit the cord, the new inductor is shaped as...

Parasitic capacitances are unavoidable in silicon microgyroscope because of the limitation of MEMS technology and packaging. Due to the existence of parasitic capacitance between the driving electrodes and driving detection electrodes in the gyroscope, another possible oscillation loop is formed, which...

The open-loop detection of Silicon micro-gyroscope always has a low bandwidth and a small dynamic range, and is sensitive with manufacturing errors. So this paper has studied the application of sigma-delta modulator in the closed-loop detection circuit of silicon gyroscope, and has put forward a preliminary...

In order to deepen the understanding of nonlinear properties of specimen in the process of fatigue crack extension, the chaos and fractal theory are presented to analyze the second harmonic generation (SHG) signal of receiver in nonlinear ultrasonic system. Firstly the usefulness of chaos and fractal...

In order to understand the mechanism of pore formation and accurately simulate the dynamic process of keyhole-induced pore in laser deep penetration welding, a three-phase mathematical model of laser keyhole welding is established to reflect the formation process of bubble, and a ray tracing method based...

The output flow is one of the important indicators of gear pump performance. External meshing elliptic gear pump is a new type of displacement pump, whose performance is better than circular gear pump, especially in terms of output flow. The influence of rotating speed, centrifugal rate and number of...

Segmentation hoisting is generally used for flare stack with flange connection structure. This paper presents a technical innovation of integral hoisting of flare stack with flange connection structure. In the paper, CATIA finite-element-analysis is used to build 100% model of flare stack and to simulate...

The numerical method of the one-dimensional non-homogeneous heat equation on an unbounded domain is considered. Two exact artificial boundary conditions are applied on two artificial boundaries to limit the original problem onto a bounded computational domain. Then the finite difference method is developed...

The linear Euler - Bernoullibeam model is employed for the studies on the interactions between a flexible plate and incoming flow. The flow field was simulated by the immersed-boundary method. It is shown that the plate was inhibited at a relative low Reynolds number. When the Reynolds increases, the...

In the process of biomass gasification, it is inevitable to produce by-products, among which the most important is the tar. With the continuous development of biomass gasification technology, a variety of tar removal methods have been developed. According to the principle of the process of tar removal,...

An unsteady three-dimensional simulation based on Reynolds time-averaged control equations and RNG k- turbulence model is presented for hydraulic turbines, and the pressure fluctuation and radial force characteristic of hydraulic turbines are obtained. The results obtained show that the time domain of...

The target goods location of some stackers is realized by the recognition site piece. The point-to-point communication mode is used, such as infrared communication, leading to low localizing precision, reliability and poor scalability. To overcome the above shortcomings, taking a logistic laboratory's...

The traction power supply system of electrified railway will cause harmonic and negative sequence current when connecting to the common power net. The propagation characteristics of harmonic and negative sequence current are studied by analyzing a certain power network in the ETAP software, and then...

This paper mainly solves the problem of the independent driving and coordinated control of the four wheel motor in electric vehicle. The vehicle controller is designed based on DSP2407, the DA_OUT function is added to the program of the DSP2407 SPI module, which can be used to set the parameters SPI_DATA...

Inertial and gravitational energy of load can be regenerated from hydrostatic transmission with secondary regulation. Based on the working principles and energy-saving theory of the secondary regulating transmission system under variable pressure rail, regenerating the transmission system's inertial...

The output power of the photovoltaic is a kind of nonlinear function which is influenced by the intensity of sunlight and internal junction temperature. In the external environment stable situation, photovoltaic, the component exists only the maximum power output point. This paper analyzes the output...

In order to optimize the heating dynamic response of heavy oil in the submarine pipeline, the control system of the pipeline electric current tracing system is designed. Firstly, the mathematical model of electric current tracing system for heavy oil pipeline is established based on mechanism modeling...

With the continuous development of optical fiber measurement technology, it has been more and more used in petrochemical industry. This paper introduces the using two application examples, including distributed optical fiber measurement technology for storage tank temperature and pipeline strain monitoring....

A power control strategy based on PRN (Proportional Resonant and Inertia) is proposed in this paper. In the motor drive without dc-link electrolytic capacitor, the traditional PI controller is difficult to track the power which contains both ac and dc components. This characteristic cannot meet the system...

The pH of water is very important to human health and aquatic products breeding. Traditional PH detection technology cannot meet the requirements of real-time, dynamic and efficient monitoring, this paper designs an on-line PH monitoring system based on ZigBee technology. The system is based on the ZigBee...

Many communities have their own renewable energy generators to reduce long-distance power transmission losses and to decrease greenhouse gas emissions. However, in high power demand regions, power transmission congestion is often occurred when abundant renewable energy is generated and injected into...

Firstly, this paper briefly describes the origin of the electromagnetic linear actuator which research status and development are summarised. Secondly, it describes the principle, the characteristics of the moving-coil linear motor and the Moving-magnet linear motor. Thirdly, it analyses and summarizes...

This paper investigates the stator magnetic pull per unit area (MPPUA) and stator vibration characteristics under different static air-gap eccentricity (SAGE) forms of turbo-generator. Three types of SAGE, i.e. the rotor offset, the stator deformation, and the mixed one composed of the former two, are...

This paper used theoretical analysis and numerical calculation to analyze winding electromagnetic force (EF). QFSN-600-2YHG type turbo-generator is the research object. This paper investigated EF on exciting windings of turbo-generator before and after rotor interturn short circuit (RISC) fault. The...

In order to studying the characteristics of MRF inter-layer shear force, through the development of MRF inter-layer shear force experiment device, under the action of dynamic composite field that composed of magnetic field and temperature field, the experiment analyzes the characteristics of magneto-rheological...

Experimental study was conducted to investigate the effects of using isopropanol-diesel fuel blends on the engine performance and exhaust emissions in an electronic control high-pressure common rail turbocharged direct injection diesel engine. Experiments have been performed for different isopropanol-diesel...

As the key component of the electromagnetic energy conversion in the motor, the type of winding has an important influence on the high order harmonics and losses. In order to study single-double layers concentrated winding for high order harmonics and losses reduction, taking a 2.2kW squirrel cage induction...

Winding vibration electric power transformer is under circulation in the leakage magnetic field generated by currents in the windings due, calculated winding paper analyzes the distribution of electric power to analyze the vibration characteristics of the windings. Using finite element analysis software...

This paper introduces the component dynamic scheduling method. The method is used for automotive network control software design. In this paper, we introduce the research necessary for component-based software architecture. And we describe the rules of components dynamic scheduling based on graph theory...

Flexray bus is considered as a more promising bus in the future with the performance of real-time, scalable, and fault-tolerant. In this paper we design an electric vehicle battery management system based on flexray bus, including the hardware design, the SoC estimation theory, flexray protocol design...

The effects of transformers on the types and characteristics of voltage sag are also different when the voltage sag is transmitted by the transformers, which have different winding connection modes. In this paper, using the system simulation model built by PSCAD, based on the derivation of voltage transfer...

The potential of controlling the gasoline premixed compression ignition combustion using the diesel micro-pilot strategy was investigated to achieve high thermal efficiency and low emissions on a light duty engine. It was found that the gasoline fraction and the second diesel micro-pilot injection timing...

In order to improve the control effect of the brush-less DC motor, adjustable-speed system of double loop-locked based on TMS320f28335 chip is designed to realize the digital control of the brush-less DC motor. As for the hardware part, the TMS320f28335 chip is the core processor and the brush-less DC...

To effectively detect the hidden fault of transformer winding, the combination of grey correlation analysis and entropy weight theory is proposed to detect the winding condition of power transformer based on the inherent relations of vibration frequency response (VFR) curves of several measured points....

To achieve a human-like grasp for prosthetic hands, this paper proposes a master-slave control system for the prosthetic hands based on the Cybleglove II. The movement characteristics of human finger joints were acquired via the data glove, and analysed by the LabVIEW real-time control system simultaneously....

Despite the rapid developments of prosthetic hands technologies in recent years, there still exists a huge gap between prosthetic hands and human hands in flexibility. The limitation of sensors attached to the prosthetic hand is one of the causes, and another reason is that the materials, weight, and...

This paper proposes a load control of island economy operation model. It coordinates the storage operation with diesel generator output, so as to achieve the economic operation purpose of power grid. In this paper, the micro network economic operation model is transformed into mixed integer programming...

To build a state space evaluation system based on online sensor measuring information, combined with expert experience, a real-time safety assessment method based on Mamdani fuzzy inference system is developed, aiming to monitor safety of large crane in operation and accordingly provide decision support...

Vertical rotating devices may cause large amplitude vibration or even lose stability during low-speed operation. This paper discusses the control approaches of a low-speed vertical rotor orientation system based on the electromagnetic levitation. In the paper, according to the gyro mechanics principle,...

This paper describes the design of the movable solar energy heat utilization system. The data of the system can be monitored and output for testing and analysis. The system can save 3386.4 kWh of electricity per year.It can be known that this system uses only two hours to heat water for daily life.The...

This paper discusses a multispecies discrete Gilpin-Ayala mutualism system with feedback controls. We firstly obtain the permanence of the system. Assuming that the coefficients in the system are almost periodic positive sequences, we obtain the sufficient conditions for the existence of a unique almost...

For different structures of sensor have many decoupling algorithms, this paper discusses mainly from two aspects the decoupling algorithm of six-axis force/torque sensor. One is the linear decoupling which is under the assumption that the sensor system is a linear system, another is the nonlinear decoupling...

Onboard magnetic flux compression generator (MFCG) would be used widely in new types of projectiles that need huge electric energy, while the inductance variation is significant for onboard MFCG design. In order to achieve the inductance variation, image current model was applied to the circuit parameters...

According to the technical problems of the existing testing methods for the key hidden metal components (such as the decompression panel and the water board) of the turbine runner chamber, such as the poor reliability, the inaccurate locating and the larger detection blind spots of the detection device,...

Effective load forecasting for different scales of loads is essential for the planning and operation of distribution network. The extending scale of the network, the diversity of load types and the rapid increase of data volume are some of the facing problems. In this paper, we propose a novel method...

A broadband magic-T based on double-sided parallel-strip line (DSPSL) and microstrip-coplanar waveguide (CPW) transition is presented and demonstrated. The DSPSL magic-T has broad bandwidth and low phase imbalance at the sum (H) and difference (E) ports. The equivalent circuits of the proposed multilayer...

The probe structure is the primary issue for near field detection procedure. In this paper, a waveguide probe with circular split ring resonator (SRR) array fixed on its open end is proposed. The probe explores the under-detected object surface by measuring the phase of S11, which is quite sensitive...

To get target ultra wideband electromagnetic scattering characteristics with high efficiency has great significance for the research of high resolution radar, imaging and target recognition. However accurately simulate the scattering characteristics of electrically large complex targets, the computational...

The overhead transmission lines stretching thousands of miles, accounted for a large part of power system, and lightning transmission line fault is the most main form of power system fault. In order to reduce the transmission corridor area, double circuit and even more loop transmission lines were more...

Cloud storage are sometimes abandoned in consideration of data security. To solve this problem, this paper implemented the environment reliability provision mechanism (ERPM) for cloud storage with dynamic searchable encryption (DSE) algorithm, which is based on homomorphic encryption and convergent encryption....

Electronic stability control (ESC) systems are well understood with regard to assisting drivers to maintain vehicle control during extreme handling maneuvers or when extreme road conditions are encountered. This paper discusses the development of a vehicle dynamics model and model validation of a certain...

Firstly, this paper analyzes the current status of substation training system, and puts forward a substation simulation training system based on virtual reality technology, aiming at the shortcomings of traditional substation training system. The system bases on the building of substation model, introducing...

As a part of the intelligent video surveillance, off-position detection,which needs a real-time and precise algorithm, is used to detect whether the person on duty is absent from working position.This work is necessary for improving efficiency and reducing human resource consumption.Considering the excellent...

Storing data in cloud storage servers is a new trend with the development of 05 Cloud computing. Cloud storage brings lots of benefits and allows cloud users to access their data from any device. However, it also brings security challenges. Cloud user loses its control on its data because all data is...

As the availability of web application services grows, we are witnessing an increase in the number and sophistication of attacks that target them. The SQL injection attack has been the most dangerous way of web-based attacks. In this paper, according to the characteristics of the SQLIAs, we presented...

In all kinds of social network software, retweet is a common behavior and a important mechanism for information dissemination. Especially retweet prediction of micro-blog users is very important to deep research. However traditional method can't be effectively applied to big data. To solve this problem,...

Trojans inject systems and launch various attacks, such as eavesdropping secret information, tampering with system configuration etc., which threats to system security seriously. In this paper, a novel anti-Trojan malware mechanism was proposed based on attribute behaviour and cosine similarity. Firstly,...