10kv distribution networks of power energy assigned to users play part in an important role, generally conventional 10kv line one permanent fault will cause the whole route broke down. And we find the fault point is wasted time and energy . Recently, it’s possible that run intelligent high voltage electric...

In order to ensure the security and stability operation of microgrid, this paper construct simulation models of renewable energy generation grid, propose the control strategy of the grid-connected and microgrid operation, and analyze these control strategy based on Power Systems Computer Aided Design....

The establishment of stable and reliable island microgrid with renewable energy resources is an important measure to guarantee the island economic development. The scheme and strategy is used to achieve information communication and interactive control. The energy storage unit and diesel generator can...

The performance of Photoelectricity Trackers is usually required to be tested in the process of developing or repairing. A simple revolving photo-electricity target is realized based on a collimator, and it can be used to test the Photoelectricity Trackers’ performance. The photo-electricity target is...

Using platelet derived growth factor B chain (PDGF-BB) as the model analyte, a structure-switching hairpin probe based electrochemical biosensing strategy for highly sensitive detection of protein is proposed in this work. Aptamer probe hybridized with the immobilized hairpin structured signal probe...

The forefront of photonic crystal theory is applied in this paper to solve such technical difficulties as low color purity, unsatisfactory effect of deep treatment that are commonly seen in photodynamic therapy instruments. By using the transfer matrix method, band gap property of photonic crystals is...

Considering the parameter uncertainties, model inaccuracies and external disturbances in the servo-system, it is difficult to achieve an ideal performance of the conventional sliding mode controller (SMC), so we designed a robust adaptive global sliding mode controller (RA-GSMC) by constructing a global...

This paper researches the stability problem of structures of embedded ZnO nanodevices and properties under the environment of human serum albumin. The study simulaties human environment by putting the ZnO nanodevices into human serum albumin, imitates the human body environment of 37 , and researches...

This paper focused on the question of optimizing process capability under the Beta distribution. First of all, analyze process capability index under Beta distribution, and analyzing the features of process capability index. Then, to decide the effect of process capability, Methodologically, this paper...

Based on joint parameter and robot configuration, the Lagrange and Kane dynamics modeling are established for the 4-DOF modular industrial robot in this paper. The planning mission was performed in the Lagrange dynamics modeling and Kane dynamics modeling by simulation software. The simulation results...

The research actuality and development of parallel manipulators are talked over in this paper. A parallel robot driven by double sliders linear motor has been presented. The kinematics and singularities of the 2 degrees of freedom (DoFs) parallel mechanism of the robot are analyzed. On the basis of that,...

SPWM and SVPWM modulation methods are established based on the dual Fourier integral theory and the SPWM and THD modulation algorithms are compared. The results show that the SVPWM modulation algorithm can make the current frequency converter have more excellent output characteristics, which provides...

A nonlinear model of a liquid level process is obtained on the analysis of its nonlinear characteristics, finding the basis of its nonlinear process parameter correction and a nonlinear system control strategy based on single chip computer is presented. By measuring the liquid level and flow rate, two...

The key techniques of visual monitoring contain searching and measuring multiple targets in large region. However, many intelligent monitoring systems today cannot satisfy these requirements simultaneously. By analyzing the features of creatural vision in predator-prey relation, the relationships among...

Aim to demand for automobile covering parts of measurement, this paper puts forward a new kind of optical inspection method, which combines photography with dense point scanning measurement. In order to meet the requirement of measuring the covering parts of automobiles, this paper proposes a new kind...

This paper introduces the load isolation type pure electric driving (LIPED) system, and according to the performance requirements of the vehicle. Based on the NEDC cycle, the energy consumption and the maximum demand of a light truck are calculated, and the parameters matching of power battery is carried...

This paper proposes a design of VVOIP (Video and Voice over IP) on smart devices, with ARM Cortex A8 CPU structure in hardware, Android OS and JAVA language in software and C in Native layer. In the VVOIP, SIP is adopted as session protocol, and RTP packages carry H264 video streamer and GSM audio streamer.

We’ve designed a photoelectric sensor to detect the concentration of SO42- solution with a vertical capsule which was immersed into sample solution derectly. The system contains a pair of light-emitting diode (LED) and photosensitive diode (PIN) packaged with cover of semi-sphere shape. Theoretical analysis...

HVDC XLPE cables were widely used in the transmission line for the excellent characteristics. The thermal aging properties of HVDC XLPE insulation were investigated in this work, based on different assessment techniques, such as IR Prestige-21 Infrared Spectrometer, Thermo-Gravimetric Analyzer, and X-Ray...

Geomagnetic variation is divided into quiet period and active period, while active period is non-periodic and random. This paper utilizes analyze the magnetic variation field signals in active period in time-frequency domain, then models and forecasts the signals by using Artificial Neural Networks....

In recent years, the power grid and its load structure has undergone great changes. Especially the interference of a large number of non-linear and impact loads have caused voltage waveform distortion, voltage fluctuations, and a series of power quality problems. Therefore, extensive attention has been...

This article mainly for power uncontrolled rectifier device and controllable rectification device is produced by the voltage harmonic mechanism has carried on the quantitative analysis. This paper illustrates the harm of harmonic of electric power system and harmonic treatment technology.

The large eddy simulation (LES) has not been adequately developed in the entropic lattice Boltzmann method (ELBM) framework. In particular, analysis of high Reynolds number turbulence simulations using ELBM-LES remains to be done. A standard Smagorinsky subgrid scale model in large eddy simulation based...

With the combination of deep Hubble Space Telescope Imaging and magnification due to gravitational lensing, the CLASH program offers an unprecedented opportunity to search for supernovae at high redshifts and detect some of the most distant galaxies as well. Unfortunately, the cluster field suffers from...

A process automation system based on PlantPAx platform was developed for a lyocell staple fiber plant with annual capacity of 15000 tons. The system has realized simple operation and optimization of the plant, full-automatic startup and shutdown of the plant units, control and diagnostics of malfunctions,...

Strapdown seeker connect the sensor fixed on the projectile, through a large field of view to ensure the effective of target detection, in order to solve the high frame rate digital image processing and target recognition tracking problem, design a kind of based on FPGA + DSP architecture is applied...

Ultrasonic partial discharge detector can discover and locate the partial discharge, and is used widely. Recently more and more ultrasonic sensor and partial discharge detector were produced by different producer. There are so many styles and kinds that detector functions are intermingled. For example,...

The previous TCP protocol cannot predict congestion. Only when the sender receives more than three acknowledgements or the retransmission timer is out can it realize that congestion has occurred. We train the linear neural network by using round-trip time and current TCP throughput as its inputs. As...

Horizontal driving machine (HDM) will directly affect the moderating effect of automobile seat, it is necessary to carry out quality inspection. This paper first puts forward the overall design of HDM test platform, then clamping devices are designed and a complete testing platform model is build

Sensitivity analysis as an alternative approach can take structural parameters as variable and achieve the relationship only with one time analysis. The study on frequency sensitivity of a transmission tower is actively carried out in this study. The three dimensional analytical model of a transmission...

TCable system is an important part of the aircraft.As the plane "nervous system",cable system is the important role of carrying out electricity, assigned signal and transmission tasks,but also to provide contact information between each system control. The volume and weight of the cable is restricted...

As the most commonly used method in speed governor for marine diesel engine, PID control method is not very effective for nonlinear systems with big variation of parameters. To improve the dynamic precision of diesel speed governor, a fuzzy PID hybrid controller of parameter self-adjusting is put forward...

This paper presents a new method of injection of high voltage pulses (IHVP) during commutation in order to shorten current’s rising-edge time and reduce the torque ripple. A quantitative method for choosing the voltage magnitude and the pulse width is put forward with trapezoidal back EMF under square...

Based on the model of coordinated control object, this paper firstly eliminates the strong coupling between the input and output variables using feedforward compensation decoupling method. The fuzzy adaptive PID controller, using the decoupled model, is designed and optimized for the main steam pressure...

Background on modern safety monitoring of building maintenance equipment, the technology of ZigBee is applied. Steel wire rope monitoring system of window cleaning machine is researched in this paper. Its key question is to achieve low speed, low cost and low-power consumption. Star topology of wireless...

Photovoltaic technology has been widely studied as one of the most promising new energy technologies around the world. The critical problem is, however, low conversion efficiency has hindered its development. This paper has analyzed effective factors to conversion efficiency in photovoltaic power system...

In view of design purpose on the welding robot of different tanks, The purpose of this research is to welding robot motion controller is applied to the tank cover, the system adopts solution of “PC + motion controller”. The paper analyses the selection of F28335 motion controller, Through the way of...

Chlorine analyzer is broadly used for determination of residual chlorine or total chlorine in water. It is very important to evaluate its performance and needed to be calibrated by metrology organizations. But there is no standard or regulation for chlorine analyzer calibration in our country. The calibration...

In this work, a sensitive E-DNA sensor based on avidin modified electrode and DNA-functionalized Au nanoparticle (DFNP) was developed. The DNA-Functionalized Au nanoparticle contained two kinds of DNA, one was hairpin probe DNA with a biotin at the 3’ terminal and a thiol at the 5’ terminal, the other...

A low power discrete cosine transform (DCT) architecture is presented. It is implemented through Loffler DCT based on the coordinate rotation digital computer (Cordic) algorithm and the canonical sign-digital (CSD) multiplier-less architecture. The synthesis results show that the proposed 8-point one-dimensional...

Human motion capture is widely applied in engineering bionics, ergonomics, aerospace, military defense, biomedical, sports competition and other fields. However, the human motion capture equipments are less developed in China. This paper presents a human motion capture system based on computer vision...

Gas well head pressure sensors are the important front-end equipments of digitalization construction of Changqing oil field. Foreign pressure sensors are once relied on for a long time there. A problem urgent to be solved of digitalization construction is to develope pressure sensors with independent...

The Nexperia PNX1700 Media Processor is a complete Audio/Video/Graphics system on a chip that contains a high-performance 32-bit VLIW processor, capable of high quality software video, audio signal processing. Based on Philips Semiconductor's multimedia processing chip Nexperia PNX1700, designs a new...

AGC, Auto Gain Control, is a very important design module in HF transceiver. AGC makes fearfully important effect on improving receive range of receiver and overcoming near-far effect of wireless link. This paper discusses in detail the idea and method of project design of the AGC circuit, affording...

This article mainly used Fourier series type SPWM inverter output voltage waveform for the quantitative harmonic analysis. This paper expounds the main reason for the harmonic of the inverter. In this paper, the quantitative harmonic analysis method to eliminate the harmonic pollution green grid provides...

To solve the traditional problem that the situation in mine is unknown in time, a kind of wireless monitor system based on ZigBee technology is designed. In this system, the security manager can real-time monitor the gas density of multi-location .Compared with traditional system, this system is portable...

With an area of more than forty thousands square kilometers, rich geological reserves have been proved in Sulige gas field and thousands of gas wells have been constructed there. It is a high cost to open or shut in so many wells manually and labour intensity is great for workers. To meet the requirements...

Because wind energy is very rich, the price is very cheap, energy will not be exhausted, and can be obtained in a wide range, very clean, no pollution, will not affect the climate, so wind power has been the world's fastest growing energy. This paper summarizes and tracks the main forecasting techniques...

This paper summarizes three kinds of improved strategies for ant colony optimization algorithm: the improved strategy based on the structure of solution, the improved strategy based on the pheromone updating, and the improved method based on the solution processing. Taking the ant colony system as an...

In this paper, the ant colony algorithms is studied, and improve the shortcomings of the algorithm, And the improved algorithm is introduced into the field of logistics transportation. Aiming at the complexity and uncertainty of logistics transportation vehicle scheduling problem, a new algorithm is...

In this paper, we present a path planning for mobile robot based on improved ant colony optimization algorithm. In order to increasing the algorithm’s convergence speed and avoiding to fall into local optimum, we proposed updating the pheromone residues. Experiments show that this method is effective...

In this paper the control mechanism of bone remodelling under mechanical stimuli at cellular level is investigated by means of an extensive parametric study on a theoretical model developed previously. From a perspective of control mechanism, it is found that there are several control mechanisms working...

In the traditional missile longitudinal loop design, the additional pitch angle feedback, trajectory inclination angle and attack angle outputs may cause the missile control system become unstable and cannot provide the fast and accurate control. In this paper, the author build up a longitudinal loop...

In recent years, with the rapid development of micro electromechanical systems, low-power sensor networks and integrated circuit technology, the power supply problems are becoming the barrier of environment protection in practical and industrial. Vibration is a widely used energy in the environment,...

robot model of three-arm and five-degree freedom plus large scope of traversing welding was established, and decoupling of models of “large scope of traversing”, “triangle movement of two arms” and “spherical movement of one arm” was realized. The model of “triangle movement of two arms ”is able to use...

The recommendation system is the information service tool that can satisfy the user's personalized demand. It can effectively solve the problem of information overload. Collaborative filtering recommendation technology is widely used, but the technology is difficult to recommend new users and new projects,...

This paper introduced the improvement of the original control system of process control laboratory. The development of the liquid level, temperature and flow time-sharing control experiment platform adopting Profibus-DP fieldbus technology of Siemens. The newly designed control system using S7-300PLC...