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In many industrial fields, there always exists mechanical regular movements, for example, the movements of reciprocating pumps in an oil field, which brings limitation for the detection. The tranditional methods including background subtraction cannot be used directly. In order to fit the scene with...

With the rapid development of Internet, the search engine becomes an important tool for searching information gradually. In order to choose an appropriate and reliable search engine, a research on search engine evaluation has been a hot topic. In this paper, we adopt a fuzzy comprehensive evaluation...

In order to solve the problem that robustness in copying and pasting forgery detection algorithm is poor and detection accuracy is insufficient, this paper puts forward to image forgery detection algorithm of coupling Zernike Moment (Zernike) by Undecimated Wavelet Transform (UWT). Firstly, it uses Undecimated...

In this paper, an adaptive control design and stability analysis for a class of uncertain systems with unknown models is carried out. In particular, the adaptive control effect analysis is carried out based on the assumption that the unknown system mode is estimated with the wrong mode information. Based...

An M-ary double-layer optical camera communication (OCC) system for intelligent transport system (ITS) is proposed. According to the importance of information, the message is split into different priorities. The low-priority data is transmitted with high data rate at the upper layer in high multiplexing...

In order to study the shift control of power split continuously variable transmission (PSCVT), the integrated shift dynamic models for the set of engine, magnetic powder clutch and transmission are established based on the analysis of its configuration and working principle. The shift simulation shows...

A simulated electronic-controlled engine experiment bench was introduced. The experiment bench is on the basis of Buick V6 electronic controlled engine, which mechanical system is removed, electrical components are kept and a set of systematically complete automobile engine electronic control system...

In order to change the present situation that the traditional axial piston pump can only change flow by controlling the swashplate angle,this paper designs a precision piston pump, introduces in detail its structure and working principle, and uses harmonic gear reducer to improve transmission accuracy...

In recent years, characteristic of rocky pressure machines is developing from low-pressure and static to heavy-duty and revolving. In order to make the pressure chamber of rocky press rotate precisely, this paper puts forward to introduce hydraulic cylinder as a support of the workbench, thus satisfying...

According to the nonlinear function of relative power function order, the uncertainty function is classified as one order relatively bounded and two order relative bounded and higher relative bounded situation. Then in view of the above three categories of uncertain nonlinear system, PID control law...

A kind derivative algorithm is discussed and the difference of numerical derivative and physical derivative is analyzed. What is more important is that the first step error problem is proposed and its bad affection to the system stability is shown by using a first order system as an example. Also the...

A kind of uncertain nonlinear system with unknown bounded function is analyzed. And a kind of common integral control is used to cope with the unknown function by taking example of a first order system. And by using of Laypunov stability theorem, we find that the system is stable but the unknown parameter...

The PID controller design and parameter choosing problem are analyzed in detail. Especially, seven good conclusions are proposed for the choosing of coefficient of PID controller design for a first order system. Also single P control and PD control effect and the reason of steady state error are studied...

Dual-stator toroidal motor with hybrid excitation is a new-style motor, it integrates power and drive function. The mathematic model of the motor system was derived based on the operating principle of the motor. In order to improve the response characteristic of toroidal motor, a fuzzy self-tuning PID...

The timely Published of earthquake is reflected in the face of national disaster emergency rescue capabilities. In this paper, the use of the death toll reported time as a measure to evaluate the earthquake rescue capability. Combined with China's actual situation, analyze the aspects and factors influencing...

As today's creative industry buzzword frequently appears on various media, because of its excellent performance in economic growth and expansion of employment and other aspects of attention of the world, countries have begun to develop creative industry and its research, from theory into practice industry,...

As an important subject in university education, ideological and political theories course helps to improve humanism accomplishment of colleges' students and human spirit of colleges. With teaching practices, an innovative, sustainable and overall education mode come into being gradually by accumulating...

In order to reduce the heat input in arc additive manufacturing, pulse current was adopted. Single-layer beads and multi-layer walls were deposited by direct current and pulse current. The morphology, microstructure and mechanical properties of forming components were analyzed. Experimental results exhibited...

Aiming at air pollution in Beijing-Tianjin-Hebei region, this paper carries out modeling analysis, considering different season pollutant composition and regional distribution differences; a kind of effective approach that analyzed air pollution relationship in the region is determined. In order to simplify...

In the process of electrolysis of rare earth metals, there are many factors that affect the final electrolytic production. These process parameters are usually determined by the workers in the factory according to their own experience, there is no statistical analysis of the scientific data to the final...

In order to meet the requirements which a variety of DC power supply of a certain test equipment, a voltage stabilizing module which can provide a variety of DC voltage is designed. The voltage stabilizing module comprises a power supply switch, a DC/DC switch power supply, a DC/DC isolation module,...

A new method based on machine vision is designed for electric vehicle charging hole detection and location in order to solve the low efficiency, space limitations or leakage risk in artificial charging operation for electric vehicle and to realize the automatic charging based on robot. The method enable...

In order to reduce the impact of the decrease of inductor current during the freewheel switch on the pulse of next cycle, this paper puts forward a novel control scheme of pulse train (PT) according to the working character of the pseudo continuous conduction mode (PCCM) Buck-Boost converter. The novel...

Vibration, especially at the circumstances of accidental falling down, always cause great damage to vehicle-mounted optics image stabilization system. Therefore, during the process of designing vehicle-mounted optics image stabilization system we need to consider how to reduce the harmful influence of...

Independent photovoltaic system needs energy storage in order to balance the power and improve its instability of power generation. A scientific control strategy can combine the PV cells to the battery system organically. The lithium-ion battery can be the bridge to achieve this target. This paper presents...

Metallic ceramic materials while maintaining the excellent properties of ceramic materials, but also have the advantages of a metal material, is an important new engineering materials. Iron-based composite applications broad, but not high abrasion resistance, wear-resistant engineering parts for such...

In this paper, the author makes use of the characteristics of UWB (Ultra Wideband) signals, proposed a new approach to so achieve the time synchronization in distributed wireless communication networks. In order to validate our ideas and evaluate the performance of the algorithm, we built a test platform,...

During action recognition process under the mobile phone visual sensor, in order to ensure the speed of recognition, generally distributing as sloppy feature points, so as to express composite action feature needs to be recognized. However, if the action is composite feature in small area, traditional...

The software robustness is affected by many factors, in order to improve the detection accuracy of software robustness, multiple probability analysis of computer control system is introduced, and a software robustness detection model based on probability robustness analysis is put forward. The computer...

The resin is `d for vehicle brake, in order to avoid the safety problems because of the significant temperature rise caused by the resin substance friction effect, the process of friction heating resin substance is made mathematical modeling analysis. Through the strengthen Lagrange algorithm obtain...

Under some special conditions, the quality of the inquired image is low, and the image has blurred characteristic, in order to improve the quality of the blurred image, this paper proposes a blurred image enhancement algorithm based on improved multi-scale Retinex. The shortcomings of the traditional...

Architecture design with the use of three-dimensional virtual modeling technology has become the main trend of the architecture field. To this end, a 3D virtual modeling architecture design method based on the model of multilevel texture mapping is proposed. Combining the relevant principles of multilevel...

As the complexity of the task of large mechanical work continues to increase, during the assembly scheduling process between each sub task, direct optimal standard of local scheduling have conflicts, contradiction of different sub task direct scheduling process is becoming more and more prominent. When...

In the design of LTE system, the multi input and multi output (MIMO) platform is taken as the basic configuration, high speed data transmission business is realized, due to multipath channel reorganization produced spatial focusing, intersymbol interference leads to channel imbalance, in order to improve...

The effective engineering data survey algorithm is an important basis for engineering construction surveying, design, construction and management. In order to improve the survey accuracy of engineering data, the sensor survey method is researched, and the fusion detection and survey of engineering data...

In order to improve the rate of first wish, we propose that the C4.5 decision tree classification algorithm is applied to a college graduate enrollment. The candidate information is processed, decision attributes are selected and decision tree is constructed. From extracting rules, it can acquire the...

This paper studies under the retailer’s competition a supplier how to make an optimal decision about the delivery lead time. With continuous development of the financial market and the trade market, more and more companies are choosing to have a make to order production plan as to save money from storage,...

Estimation of injection production relationship is discussed for multi-injectors and multi- producers of heterogeneous water-flood reservoir. The well pattern model is established and the definition of regional impact is proposed. In order to avoid the negative estimation parameter in the process of...

In regard of how to construct an open and efficient teacher education system to realize the teacher’s continuous professional development needs, this paper bases on the English major of Hebei University as study materials, to establish Hebei University, itself, multiple interaction on English education...

In order to control system transient stability and improve TSCOPF’s computational efficiency, the paper, based on analyzing the existing problem of multiple faults’ transient stability constrained optimal power flow trace sensitivity, introduces strict judgment of transient stability in TSCOPF model...

Channel equalizer is a key component of WSN-OFDM (Wireless Sensor Networks Orthogonal Frequency Division Multiplexing) system. Traditional equalizer is mostly designed with LS algorithm, which comes with low precision in channel estimation. The previous LMMSE algorithm could reach a high accuracy, but...

Rapid development of economy speeds up the pace of China's urbanization. The gradual increasing of structures increases energy consumption. In order to adapt to the development of our country's economic society, the attention to environment protection is strengthened in our country. The energy consumption...

In order to truly reflect the object situation of catch and place of the three-DOF parallel manipulator based on machine vision, and on the basis of the modeling of the trajectory and mechanical structure, this paper mainly focuses on the analysis on the manipulator system by using the co-simulation...

In order to solve the problem of methodology subjectivity, long modeling time and low classification accuracy in the information security risk assessment, a network security situation assessment model based on FAHP has been proposed in this paper. Via building a network security index system, using the...

In this paper, synchronization analysis is investigated for an complex networks with time delay. It is assumed the nodes in the network to be nonidentical. In order to achieve cluster synchronization, this paper uses an adaptive controller on each node, by utilizing the Lyapunov stability theory, a new...

A fast set partitioning in hierarchical tree (SPIHT) algorithm based on the end scan threshold is proposed in this paper. Because the coding process of the SPIHT needs repeat scanning and sorting, so it takes a lot of extra time and storage space. In order to save the time and space overhead, the end...

Ideal result of target recognition can’t be obtained just with single attribute. In order to improve the performance of target recognition and reflect the physical attributes of the target, some attributes are extracted from the high range resolution profile of the unknown target to form an multi-attribute...

In order to make more effective decision level analysis on the testing information of rocket launchers, this paper analyzes the existing disadvantages of evidence theory, draws into the concept of weight coefficient integrated with existing improved method, proposes new improvement of the combination...

the anti-collision problem of large network control software is studied. With the increase of the control task amount of large network control software, the randomness for network control is enhanced, the traditional anti-collision design algorithm is hard to establish the accurate anti-collision model...

Vehicle handling stability is an important factor which affects vehicle safety. In order to study Vehicle handling stability, we established a dynamic virtual prototype model of a car in ADAMS/Car software, and make simulation of the single lane change on different velocity and steering angle. And we...