Rear-end accident is mainly due to the poor risk of driver’s feelings, and cannot be fully aware of the transport of dangerous. In order to study the cause of accidents and the difference between the novice group and experience group in risk perception. This study through the contrast test for inexperienced,...

Illumination change can influence driver behavior. Especially glare light can make driver blind and lost vision, caused accidents happen. Driving behavior is a complex psychological activity process, and many researchers want to find common driving behavior characteristics. This paper studied driving...

This paper presents a method of model construction for the power system transient stability assessment based on statistical learning theory integrated with the bagging and the approximate reasoning. Support vector machines operate on the principle of structure risk minimization. This paper takes full...

In light of the current development of smart grid in China, this paper established the risk assessment index system, and conducted a comprehensive evaluation based on the rank correlation analysis and gray triangle clustering method. Calculation examples indicate that the risk level of our smart grid...

For making feasible logistics management come true, fully using data resources, and establishing in line with the development of a healthy enterprise logistics management mode, this paper puts forward a new analysis model for evaluating the quality level of logistics management based on support vector...

In order to ensure the quality of welding line in Dongfeng Honda Automobile Corporation, the online automatic measurement and control station is designed. The operational principle of the station is introduced firstly, then the architecture of the system including power supply and distribution unit,...

In this thesis, we take SH79F32 as main chip, LCD12864 as the display screen,the ultrasonic sensor of HC-SR04 as collection tools and reach the function of ultrasonic distance measurement. Through Altium Designer Release 9 to conduct schematic design and draw PCB, and then solder circuit boards, use...

Numerical simulations are used to investigate the statistical properties of the instantaneous difference in the received powers between the two ends of a bidirectional optical wireless communication (OWC) link through atmospheric turbulence. The probability density estimates of the instantaneous difference...

In order to solve the noise and blur in traditional de-interlacing algorithm, a novel de-interlacing algorithm based on dynamic threshold motion detection is proposed to detect still and motion parts. First the dynamic maximum and minimum are obtained according to different situations. Second, the motion...

In the key areas of safety, the safety requirements of the software are becoming higher and higher. However, there are all kinds of safety testing methods, or the presence of state space explosion, or the test case is huge, and the safety testing efficiency is low. In order to solve this problem, this...

This paper presented an approach for modeling and implementing the architecture of large scale sensor networks(LSSNs) information services applications using publish/subscribe (Pub/Sub) paradigm. Considering the high level abstraction and the dynamic characteristics which were necessary for large-scale...

Ambiguity function describes the measurement accuracy, resolution capability and ambiguity degree of signal delay and Doppler frequency shift, which can be used to analyze the resolution of adjacent targets and anti-interference performance of the system. In this paper, the binary digital modulation...

This paper presents a semantic technology-oriented approach(STOA) for architecting sensor networks applications using publish/subscribe(Pub/Sub) paradigm. Considering the high level abstraction which is necessary for sensor networks knowledge sharing and reusing, sensor ontologies are defined to describe...

This paper mainly analyses the necessity to manage the explosive in the coal mine blasting equipment library. It makes intelligent management possible by using digital monitoring technology, communication technology and software technology and sensor technology for reference. High performance microcontroller...

A power allocation scheme is proposed to improve the outage performance for a wireless cooperative network with multiple energy-harvesting relay nodes. The optimization problem is formulated to minimize the system outage probability under the constraints of both relay joint maximum transmit power and...

Optimization and calculation of the phase diagram of Pt-Sn binary system were presented by Pandat software.The Gibbs free energy of the pure component (Au and Pt) was described by the expression of the SGTE (Science Group Thermodata Europe) database, Using the solid solution phase thermodynamic model...

Geospatial information with the feature of multi-source, multi-space-time, multi-semantics, multi-scale and diversity of data formats, makes geospatial information sharing a complex issue, For this reason, to resolve spatial information sharing is the key to spatial information applications and services....

With the rapid development of various kinds of radio access technology, the trend of future network will be the heterogeneous wireless networks environment, where all kinds of networks coexist for their complementary characteristics. On the other hand, the rise of smart terminal and software defined...

Private wireless network communications technology is a key technology of the smart grid, but the scarce spectrum resources greatly restrict the development of the private wireless network communications technology. At present, the 230MHz spectrum can only support a low transfer rate, makes it hard for...

The ant colony algorithm is a new kind of simulated evolutionary algorithm for random searching, which converges to the optimal path by the accumulation of pheromone and updating. But it lacks the global searching ability, and easily falls into local minimum and appears the phenomenon of premature stagnation....

This paper used PID, fuzzy and model predictive control methods to control the indoor air temperature and absolute humidity of an A/C system. Simulations were carried out with the three methods in Matlab and the three methods were compared in terms of static and dynamic characteristics. Results showed...

A climbing robot’s moving mechanism based on permanent magnet adsorption is proposed, which has a four-wheel structure including two driving permanent magnet wheels and two universal wheels. The problems of the robot’s adsorption reliability is put a special effort to study. The force situations of robot...

In this paper, we propose a weighted immunization strategy on real networks with community structure. We first introduce the concept of bridge nodes on networks. It may be helpful for controlling the spread of epidemic to immunize the bridge nodes in the network with community structure. Then, we present...

With the development of Internet technology and the popularity of cloud computing technology, the organizations or companies try to build a private cloud platform. PaaS is a form of cloud computing service resources and provides application development environment. As the existing PaaS platform hosting...

We address the problem of describing and integrating long range information efficiently, such as the information demonstrated by super-pixels (patches), into conditional random field (CRF) model for object segmentation. For those purpose, a novel structural relationship between patches are defined for...

With the arrival of big data and Cloud computing era, it is a huge issue of how to organize the application services. Organizations and companies usually have plenty of applications range from web, mobile or middleware, etc. Because the quantity and diversity of services, they are delivered through different...

Objective to antibacterial effect of traditional Chinese medicine for real-time detection, analysis of quantitative efficacy evaluation. Methods the vacuum thermal evaporation plating layer metal film produced fiber SPR sensor, sensing changes in antimicrobial antigen and antibody of each parameter in...

Aiming at photoelectric current transformer technology, this paper analyses the principle of passive and active transformer firstly, then discusses the main technical difficulties in this area currently and the development of optical current transformer. We hope all above can play a reference role for...

This paper analyzed the basic principles of the alternating current withstand voltage test technology work of the same frequency and phase.And at the same time analyzed the danger that exist during the process of the test that basic on the GIS equipment,put forward corresponding preventive and control...

In order to carry out comprehensive analysis and study on the application of GIS in the same frequency and phase AC voltage withstand test method,this paper studied the same frequency and phase AC voltage withstand test of GIS, briefly described the test device and the connection principle of same frequency...

Patch-based texture synthesis has proven to produce reasonable results for a wide variety of texture classes. In this paper, an effective adaptive texture synthesis method is proposed based on the popular Image Quilting and the general framework of Hybrid Texture Synthesis (HTS) algorithm. Our algorithm...

The methods of reliability analysis for parallel-redundant system are different from the traditional two-state system, according to multi-state reliability theory, the design of the three-state electrical parallel-redundant system was optimized, and a mathematical model of the reliable degree for the...

According to the problem that lots of machining time of Electronic Discharge Machining (short for EDM) is wasted in replacing and inspecting tool-electrode, adjusting and inspecting equipment for EDM has been developed. Through extracting the feature points and planning the inspecting path, necessary...

Aiming to the trust of C2Cnetwork, indirect trust is introduced when direct trust value is lower. On this basis, the comprehensive trust value is calculated which is used to select trading node. The satisfaction factor, transaction size, transaction time, transaction frequency and other factors are taken...

Security is always a serious issue influencing the development of Software-Defined Network (SDN). The central control mechanism makes the SDN controller a bottleneck of the network which is vulnerable to network saturation attack. In this paper, we propose an approach to defense this kind attack. Firstly,...

Based on the characteristics of the attitude control system, this paper use the neural network predictive model controller which can identify accurately attitude system and obtain real-time control sequence applied to the controlled object through the model prediction, feedback correction and rolling...

In this paper, the control system of the mobile satellite antenna azimuth is studied, and the control scheme of the Smith fuzzy PID controller is proposed. The Smith - fuzzy PID controller has the characteristics of adaptive parameter adjustment, and has better adaptability to the change of the controlled...

This paper mainly for the joint control methods of the spacecraft return Capsule's temperature and humidity have been studied. According to the characteristics of temperature and humidity, it designs the object model of the temperature and humidity, and designs the model of decoupling controller on the...

Aiming at drawbacks of the poor universality of traditional version control model, a semantic model which can organize unstructured data into structured data is discussed in this paper. Using semantic model can describe the change process of design object dynamically;then this paper further proposed...

According to the requirements of remote insulation monitoring for automated marine power station, the intelligent insulation monitoring system for ship grid was designed. On the basis of ProfiNet, a new S7-1200 PLC with ProfiNet interface of Siemens is chosen as the core controller by the system, making...

Specific to the usual methods for insulation monitoring—dc superposition method, double frequency principle and zero sequence current amplitude comparison method, the work principle and applications of these methods were compared and analyzed, and respective characteristics were concluded. On this basis,...

Image enhancement has been an important technique for image analysis. The purpose of enhancement is suppressing noises and enhancing image details. However, most of algorithms only focus on the noise suppressing or detail enhancing. In this paper, an algorithm which could both suppressing noises and...

The generation tripping sensitive point could be located by absolute kinetic energy incremental index. A method was proposed which is used to locate this point based on the estimation of unbalance power during short circuit period. The voltage was separated to two parts: one was determined by the pre-fault...

There are a lot of converters in the DC microgrid. These tightly regulated closed-loop converters may cause stability problem of bus voltage when used as a load. In order to improve the stability of the DC microgrid, a novel stabilization method based on exact feedback linearization is proposed. The...

For the huge amount of image data, high transfer rate, high real-time requirements of the imaging system, this paper proposes a high-speed image data acquisition and storage system based on TMS320C6748 DSP, with the use of uPP interfaces to capture images from the FPGA in real time, using GPIO and UART...

The uncertain multi-attribute decision making (UMADM) problem that the information about attribute weights is known partly and the decision maker (DM) has preference information on alternatives in the form of interval numbers complementary judgment matrix is investigated. Firstly, based on interval numbers...

Concerning the centralized communication overloading of the virtual machine (VM) in the cloud computing center, this paper puts forward an adjustment strategy, that is, to build a model through the load evaluation of three threshold values in consideration of the load balancing and to achieve the objective...

Path planning technology is the precondition of unmanned aerial vehicle (UAV) airspace safety. For in the running features of the UAV in 3-D space environment, putting forward using fight level (FL) guiding factor to improve the basic ant colony optimization(ACO), which improved the quality and the operation...

To overcome the traditional fault tree diagnosis techniques are difficult to resolve random uncertainty and complexity ambiguity. We choice the method of combine fuzzy comprehensive evaluation with fault tree analysis. First of all, we construct a runway incursion fault tree, comprehensive identification...

As the innovation of low-altitude airspace is advancing, the operating system is more mature, and the amount of aircraft increases rapidly, resulting in the increasing importance of the operation security. However, today’s research on safety evaluation of low-altitude airspace in China is lagging behind....

OFDM Visible light communication (VLC) systems can achieve both illumination and data transmission simultaneously via light emitting diodes (LEDs). Orthogonal frequency-division multiplexing (OFDM) has been considered as a promising multi-carrier modulation technique for VLC due to its ability to boost...

In this paper, according to the characteristics of distribution network reconfiguration. A Novel Firefly Algorithm was used to solve distribution network reconfiguration, the algorithm was experimented and the experimental results show that the new algorithm to be successful. Simulations and results...

Based on Plant Growth Simulation Algorithm, we propose a novel algorithm for solving permutation flow shop scheduling problems. Starting with the characteristic of permutation flow shop scheduling problems, combining disjunctive graph according to the sequence of scheduling, analyzing Scheduling options...

Task scheduling is one of the key technology of cloud computing, its main goal is to satisfy the fairness of the system resources and tasks more effectively, and at the same time as much as possible to realize the load balance of system resources and reduce the completion time. Combined with the advantages...

In this study, aiming at road boundary detection problem of driverless cars in structured and semi-structured roads, the paper proposed a new real-time road boundary detection algorithm based on driverless cars as a platform. The algorithm firstly included following steps: calibration, layered and median...

through the overall structure analysis and design of hotel management information system such as system software structure, system network structure and work procedure etc, this system realizes network management of hotel business, solves information communication and procession among departments. This...

The paper presented a new simple and novel design of a bionic frog-hopping robot to achieve continuous hopping. The flexible jumping leg is made by spring leaf of C-shape, which is beneficial to increase the storage of elastic energy and improve service life. The synchronize compression process of two...

Laser cladding has been widely introduced into industries for improving or changing the behavior of material to against corrosion, wear and so on. In the process, the molten pool, which is related to powder mass and others, is formed to melt the introduced powder onto the substrate. Thus, the area and...

This paper, based on the damage effect of electromagnetic pulse (EMP) on satellites, firstly analyzes electromagnetic leakage elements of typical satellites, emphasizes the coupling process between EMP and satellites and its damage effect on satellites, and conducts preliminary simulation on antenna...

A free-standing TiAl based microlaminate sheet with thickness of 300 m was deposited with high-power electron beam physical vapour deposition system. Microstructure and phase analysis of as-deposited samples were studied by XRD, SEM and TEM. Toughening by structure was analyzed with tensile test. The...

To provide a amplitude, frequency programmable current signal with high precision for fault detection of 10kv rural power line this paper presented a high precision current signal source using DDS (Direct Digital Frequency Synthesis) technology. The system includes two parts which are signal generator...

Parts manufacture deviation may cause interference in aircraft components assembly, and the handling of interference is a complex work. In order to solve this problem, the paper proposes an interference detection method based on measured data. First, the assembly feature was obtained by fitting the point...

Electric power communication network is an important part of power system, which plays a vital role in the operation of power network. This paper established an index system of electric power communication network and proposed a diagnostic method of electric power communication network system based on...

The heat feedback of flame plumes is a main form of energy transfer and a significant contributor to fire growth and spread. The paper introduces the case of heptane pool fires in open spaces. A corresponding formula is proposed along with the simplified model of plume heat feedback based on the analysis...

This paper proposes a cyberspace situational factors organizational methods, provide a unified framework for data organization, so that information from different sources can be organized between the host status information to be consolidated, abnormal event information, traffic information, topology...

The SQL conditional expression is not a constant expression, making it impossible to judge its legitimacy through the final value. However, there exists one alternative way where the elements in expression should be identified first to obtain the corresponding postfix data type expression, and the algorithms...

Data-driven modeling method has become an ideal research method in crowd behavior simulation fields. The basic idea of data-driven modeling method is that velocity field generated by the crowd behavior characteristic information. Because of the video data acquisition, the velocity field has its limitation,...

Network protocol conformance testing is a functional black box testing. It tests whether that if the implementation of a protocol consistent with consists with the protocol standards according to the protocol text description. A method of network protocol conformance testing with Petri net is presented....

After the wireless sensor network nodes deployed on the detection region. It needs scheduling algorithm to optimize nodes deployment and make full use of sensor nodes’ energy consequently. This paper proposed an energy efficient nodes scheduling algorithm. It could make better use of wireless network...

This paper presents a method which improves the thickness of the prediction model. At the same time, it builds up a SVM prediction model based on MATLAB simulation experiment. By comparing the simulation curves of the mechanism model and SVM regression prediction, it apparently can be seen that thickness-output...

UIC gateway built on UIC556 standard can realize inauguration, process and message data effective configuration and communication between different manufacturers EMUs. With valid configuration of node monitoring database, process data can be properly transferred to the WTB (MVB) bus through filtering...

Scholars at home and abroad have done lots of research on feature selection methods in Chinese text classification, such as document frequency (DF), information gain (IG), and a -test (CHI). On the basis of their work, we propose a new selection method of counting the unbalanced degree of term distribution,...

Point cloud models are widely used in industry. It is also faced with increasingly serious copyright protection issues. A new watermarking algorithm of 3D point cloud model using angle quantization index modulation is proposed. At first, a point cloud model is segmented into many patches according to...

This paper mainly discusses the weight factor that influence on cubic NURBS interpolation curve shape. Based on the existing curve and surface interpolation, the thought, the criterion and the concrete steps of the convexity-preserving of the weight factor of cubic NURBS interpolation curve are provided,...

SDN technology implements network deployment/management flexibility and network resource virtualization by the separation of the control plane and forwarding plane of the network. However, SDN technology faces the same problems as the traditional network does, that is the network can’t recognize the...

In the development of network dynamic website, PHP technology is comparatively more safe and convenient. In application, it is widely applied to update the stability of dynamic information. Through effective application operation, it can ensure effective information embedding, so as to realize the safety...

This paper analyzes the characteristics of image processing method based on nonlinear evolution equations, expounds the advantages, mechanism and theoretical basis of nonlinear evolution equations model in image processing algorithm, and uses the method of partial differential equation for image denoising...

There are some problems in using and managing the educational resources of colleges and universities, such as uneven distribution of resources, Inconvenient to use, data redundancy, more maintenance personnel and low efficiency. There is often a branch in colleges and universities; there are plenty of...

With the rapid growth of colleges and universities education resources, people more frequently access to those resources on the network, but the distribution of resources is too loose and the repeat of resources is too high, people need a lot of time to get information from those resources and constantly...

This paper introduces the realization of correlation power analysis attack to decrypt the encryption equipment for AES encryption system. On the basis of analysis power leakage principle power models and data correlation to build the power information collection and data processing platform. Introducing...

In order to make a precise and quick estimation of the wide-band Frequency-Hopping(FH) signal, a blind parameter estimation using numeral characteristics of compressive samplings is proposed. First study the compressed numeral characteristics (CNC) of the signal on the premise of non-reconstructing the...

Due to its concise, simple and unambiguous qualities, the Petri net method has become a reliable and accurate way of analyzing protocol. However, with one model conducting one point, the required models of the key points of protocol analysis, namely, the protocol performance evaluation and the protocol...

Dynamic power optimization is an important part of the power optimization for embedded parallel processing. Dynamic power estimation is the premise for dynamic power optimization. The evaluation model with fast calculating speed and high accuracy can improve the efficiency for dynamic power optimization....

Establishing complete quality supervision of vegetable production is an important measure and method to improve the quality of vegetables and ensure food safety. In this paper, an information system of vegetable safety production management has been designed, which has provided comprehensive information...

With the rapid development of Internet, WeChat public platform has became a fresh battle field in ideology. Being an important force on promoting advanced culture and core values of socialism, with the aid of WeChat public platform, college are required to enlarge public opinion fields and firmly seize...

Association rule mining is the core technology of data mining. The Apriori algorithm is introduced and applied to the process of students taking courses and teaching themselves by a network teaching system. On the basis of large amounts of data, frequent itemsets will be found by the Apriori algorithm....

Advanced persistent threat (APT) is sophisticated cyber-attack and has attracted lots of attention in cyberspace. Traditional defense measures based on signature matching are insufficient to detect APT, such as Stuxnet, Operation Aurora, Duqu, Flame, Red October, Miniduke and so on. In this paper, we...

Regular expression grouping is the practical way to address the state explosion problem of Deterministic Finite Automaton (DFA). Previous grouping algorithms have poor grouping time, and difficult to meet application needs. In this work, we present an efficient regular expression grouping algorithm based...

The probe and measurement circuit for the liquid level measurement of ultra low temperature cylinder was designed. Liquid Nature Gas( LNG) sensor is a coaxial capacitance sensor which was used with the material of 304 stainless steel. Teflon was used as an insulating material to isolate the stainless...

In this paper we are discussing about the fuzz testing of network protocol. Compared with the general software vulnerability mining, the difficulty of using fuzz method to detect the protocol vulnerabilities is that the network protocol is a state machine, and the correctness of the input message has...

Lightning is a major threat to people’s daily activities. Therefore, to forecast its occurrence is very important to ensure the safety of life and property. Compared to a series of signals from instruments like the Doppler radar, the lightning locator and the meteorological satellite, the electromagnetic...

Through the group key agreement, all group members could negotiate a common session key which is used in later secure communication. While simple GKA cannot provide enough security to resist the adversary’s attack, and the malicious damage during the agreement makes the authenticated key agreement particularly...

Firefly algorithm, a new type of swarm intelligence in optimization, has a good performance in combinatorial optimization problem. For Traveling Salesmen Problem (TSP), this process proposes an optimized path approach based on the modified firefly algorithm. In order to avoid a local optimum, an elitist...

In recent years, the rapid development and wide usage of wireless sensor networks, makes it a research hotspot at home and abroad. Wireless sensor network is an open network, the sensor nodes can easily be captured or tampered. Ensuring network security is a prerequisite for communication. So, establishing...

Classification in networked data is a popular research of complex network. Because of the large scale of networked data and the shortage of training data, active learning, which is an effective classification method for sparse data in machine learning, is often applied to networked data classification...

The Comprehensive Nuclear-Test-Ban Treaty adopted four technical means to monitor nuclear tests, which are the seismic, radionuclide, hydroacoustic and infrasound monitoring techniques. The infrasound monitoring technology is an effective tool for monitoring the atmosphere, ground or water nuclear explosions....

A novel algorithm aligning the time-delay of each signal received by a uniform antenna array is presented. In order to solve the problem that time-delay alignment performance is poor at the low signal-to-noise ratio (SNR) value, the proposed algorithm makes use of iterative estimation. Then we analyze...

To solve the scheduling problems of stations in cooperative localization, binary particle swarm algorithm of scheduling direction-finding stations is proposed based on Fisher information matrix(FIM).This paper makes the trace of FIM matrix as positioning accuracy measure,constructs scheduling model that...

When analyzing the data of photos and videos, it’s very important to determine the shooting time and place. Usually, we can get the sun's shadow from the pictures and videos and establish different mathematical models to solve time and space positioning problems by the known parameters. Firstly, use...

A new adaptive coding and decoding scheme is proposed for distributed space-frequency coding system. Each relay node selects dispersion matrix and modulation type adaptively according to channel state and different detection methods are used according to the threshold of channel condition number adaptively....