rss_2.0International Journal of Advanced Network, Monitoring and Controls FeedSciendo RSS Feed for International Journal of Advanced Network, Monitoring and Controls Journal of Advanced Network, Monitoring and Controls 's Cover of the Automatic Generative System of Examination Papers Based on ARM<abstract> <title style='display:none'>Abstract</title> <p>With the development of network technology, the design for the automatic generative system of examination papers that is based on web has become a trend. In order to reduce the burden on teachers and avoid duplication of work, we design the system to automatically generate test papers. It is based on a constantly updated examination question bank system, according to the teachers’ demands, which can automatically generate the test paper with a certain degree of difficulty, the number and value. The client configuration is simple and it can be free from geographic constraint. Users only need to go through their own identity authentication to enter the automatically generated system of test papers, and to manage and maintain examination questions, exam and user information and so on. The exam contents can be constantly enriched and improved and the data sharing among teachers can be easily performed. It will have important practical significance to improve work efficiency.</p> </abstract>ARTICLE2018-04-24T00:00:00.000+00:00Design of Monitoring System for Rural Drinking Water Source Based on WSN<abstract> <title style='display:none'>Abstract</title> <p>In order to solve the existing traditional rural drinking water monitoring in a lot of manpower, material resources, real-time, this paper introduces a WSN based on the rural drinking water source monitoring system design, the system consists of five parts: water quality monitoring, soil monitoring node node, node, routing node and gateway server. Water quality monitoring node, soil monitoring nodes send the collected data to the gateway node through the wireless module sent directly, or through the routing gateway node to the gateway node, each node of the data collection, unified by the GPRS module to upload server. The system can periodically detect the water quality and the important indicators of the soil in the rural water sources, and combine the water pollution with the soil non-point source pollution to realize on-line monitoring and provide guidance for pollution control. Network test shows that the designed system can realize data acquisition and remote transmission, stability, range of dissolved oxygen system for 1.09%~1.86% acquisition error, pH error is in the range of 0.64%~1.68%, Cu concentration in the range of error is 1.98%~2.22%, Cu concentration in the range of error is 1.58%~ 2.01%.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Research and Implementation for a class of Large-Scale Full-Range Power System Real-Time Simulator<abstract> <title style='display:none'>Abstract</title> <p>In order to realize intensive research and analysis of the whole bulk power system, which contains all electronic elements not only includes generator, electronic grid system, but also includes power generation system, based on the thermodynamics and dynamics theory in power generation system and the electromechanical and electromagnetic transient theory in electronic grid system, we established a class of Large-Scale Full-Range Power System Real-Time Simulator (LFPSRS). The definition of LFPSRS is given, structure of the emulated objects is described, and physical and logical structures of LFPSRS are listed. Finally, the experiment results prove that the system is superior to the traditional simulation system. We confirmed that the proposed LFPSRS can play a major role in the further research on the whole bulk power system.</p> </abstract>ARTICLE2018-04-10T00:00:00.000+00:00Motion Simulation of Bionic Hexapod Robot Based on Virtual Prototyping Technology<abstract> <title style='display:none'>Abstract</title> <p>Based on the principle of bionic hexapod, a 3D virtual prototype model of the bionic hexapod robot and the contact model between its feet and the ground are established by using MSC.ADAMS mechanical dynamics software to study the motion of the bionic hexapod robot on the horizontal ground. And then, the kinematics analysis of a single leg of the robot is made to realize the overall motion control of the robot. This paper analyzes the gait principle of the bionic hexapod robot and introduces the gait of the robot used. By simulating the straight motion of the robot, the angular velocity and angular acceleration in the legs of the virtual prototype model are obtained. The study is a theoretical foundation for the design of the physical model and motion planning of a bionic hexapod robot.</p> </abstract>ARTICLE2018-04-09T00:00:00.000+00:00Homotopy Analysis for Periodic Motion of Time-delayed Duffing system<abstract> <title style='display:none'>Abstract</title> <p>In this paper, the periodic motions of local dynamics of time-delayed oscillators near a single Hopf bifurcation have been investigated by means of the homotopy analysis method (HAM). With this technique, analytical approximations with high accuracy for all possible solutions are captured, which match the numerical solutions in the whole time regions. Two examples of dynamic systems are considered, which focus on the periodic motions near a Hopf bifurcation of an equilibrium point. It is found that the current technique lead to higher accurate prediction on the local dynamics of time-delayed systems near a Hopf bifurcation than the energy analysis method or the traditional method of multiple scales with strongly nonlinear examples. We studied the temporal dynamics of time-delayed systems in various regimes characterized by the parameters of the oscillator and the time delay parameter. The results given in this paper show that the time delay plays very important role in the analysis of multiply periodic motions with time-delayed systems. This paper is presented a general approach to the analysis of periodic motions of time-delayed systems. Although here we only consider a non-autonomous Duffing system with linear and nonlinear time-delayed position feedback, HAM can be extended to solve other time-delayed systems, such as coupled oscillators with time-delayed, feedback control which may have significance for the control of some physical or engineering systems.</p> </abstract>ARTICLE2018-04-10T00:00:00.000+00:00The Disease Assessment of Cucumber Downy Mildew Based on Image Processing<abstract> <title style='display:none'>Abstract</title> <p>Cucumber downy mildew is a kind of disease which spreads very fast and isdangerous, in order to prevent the disease, peoplealways spray plenty of pesticides indiscriminately. Accurate assessment of the level of cucumber downy mildew is very important to the disease prevention and control. In a cucumber growing season, this paper collected the typical cucumber downy mildew leaf samples, and developed the downy mildew spot extraction algorithm by using leaf image scanning method, calculated the index of the disease. The average identification accuracy of downy mildew image reaches 98.3%, and average image processing takes 10.9 ms/picture. By compared with human eyes assessment and basic value, the result shows that the human eyes assessment method have strong subjectivity, dramatic changes and bigger error, while the image analysis method get the correlation coefficient for disease index and basic value of 0.9417, has obvious linear correlation.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Design of Control System for Dust - collecting Robot Based on DSP<abstract> <title style='display:none'>Abstract</title> <p>With the rapid increase of labor cost in domestic service industry, it provides a powerful driving force for rapid development of service robot. Vacuum cleaner Robot as a service robot, you can replace the people to clean rooms, workshops, walls and so on. In this paper, the structure and function of the robot’s measurement and control system, the type and function of the selected sensor are introduced. The structure of the motor control system and the driving principle of the motor are introduced. It can be self-navigation, detection of the wall, the room obstructions and can avoid, can travel most of the room space, you can detect the battery power and autonomy to return to charge, with strong application value.</p> </abstract>ARTICLE2018-04-09T00:00:00.000+00:00Modeling of High-Frequency Low Voltage Power Line Carrier Communication Channel<abstract> <title style='display:none'>Abstract</title> <p>Low-voltage power line channel characteristics are designed for low voltage power line carrier communication system foundation. The paper used to design and develop a system for measuring the electrical characteristics of the low voltage power line communication network used to do high, including the noise characteristics of the input impedance characteristics, signal attenuation characteristics and systems, etc., a lot of experimental research. On this basis, the establishment of a low-voltage power grid will be used as a high-frequency carrier communication channel model. The model provides a practical and effective platform for the research and design of low voltage power line carrier communication system network has laid a good foundation.</p> </abstract>ARTICLE2018-04-24T00:00:00.000+00:00An Efficient Density-Based Clustering Algorithm for the Capacitated Vehicle Routing Problem<abstract> <title style='display:none'>Abstract</title> <p>The capacitated vehicle routing problem (CVRP) is one of the most challenging problems in the optimization of distribution. Most approaches can solve case studies involving less than 100 nodes to optimality, but time-consuming. To overcome the limitation, this paper presents a novel two-phase heuristic approach for the capacitated vehicle routing problem. Phase I aims to identifying sets of cost-effective feasible clusters through an improved density-based clustering algorithm. Phase II assigns clusters to vehicles and sequences them on each tour. Max-min ant system is used to order nodes within clusters . The simulation results indicate efficiency of the proposed algorithm.</p> </abstract>ARTICLE2018-04-10T00:00:00.000+00:00Optimal Waveform Design for Smart Jamming Focused on CA-CFAR<abstract> <title style='display:none'>Abstract</title> <p>Focused on CA-CFAR anti-jamming mechanism, the method of optimal waveform design is studied to increase detection threshold for reducing true target detection, which can also improve the detection rate of false targets. Based on the relationship of signal to interference (ISR) and reference distance, the amplitude of jamming waveform is designed to follow Rayleigh distribution and finite interval random, and the interval is designed as random interval based on minimum interval. In addition, the interference region is designed as dense false targets region and sparse false targets region. Through modeling and simulation of CA-CFAR and smart jamming, the method of designing optimal waveform is explored, which will provide reference for other related waveform design.</p> </abstract>ARTICLE2018-04-10T00:00:00.000+00:00Research on Wireless Sensor Network Coverage Based on Improved Particle Swarm Optimization Algorithm<abstract> <title style='display:none'>Abstract</title> <p>In order to improve the network coverage, this paper presents the research on wireless sensor network coverage based on improved particle swarm optimization algorithmfor wireless sensor nodes that are randomly deployed in a certain area.In this paper, we use the regional network coverage as the target objective function, and combine various improved particle swarm optimization algorithms to optimize the deployment location of all nodes to enhance the area coverage. The experimental results show that the influence levelof different perceived radius on the optimization performance of the network coverage is different. At the same time, the optimization performance comparison graph of improving the network coverage by using the standard particle swarm optimization algorithm, the chaos particle swarm optimization algorithm and the breeding particle swarm optimization algorithm is given, and it is proved that the latter twoalgorithms solve the wireless sensornetwork coverage better than the firstalgorithm.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Design of Remote Eater Conservancy Information Monitoring System Based on Embedded Technology<abstract> <title style='display:none'>Abstract</title> <p>This paper studies the application of embedded system in water conservancy information remote monitoring, structured, modular scheme is adopted to improve the system of software and hardware design, debugging and implementation, and puts forward a set of embedded control, data acquisition and transmission, friendly interface in the integration of monitoring information management system design. This system based on the wide coverage of the GSM short message service provided mobile communication public transport hydrologic data, without networking, suitable for actual, system operation cost is low, the data transmission reliable and rapid. For water conservancy department of information management system of water resources to provide a complete set of hardware and software solutions, in areas such as DAMS, reservoirs, lakes has more broad application prospects.</p> </abstract>ARTICLE2018-04-24T00:00:00.000+00:00Research on A Quantitative Assessment Model Based on Visual Perception in Low-Altitude Remote Sensing<abstract> <title style='display:none'>Abstract</title> <p>In order to evaluate the recovery effect of the visible light band in the low-altitude remote sensing, the sensitivity and significance of the visual perception of the restored image are selected and optimized by the perceptual characteristics of the human visual system. Finally, the effective detail retention ability, Structure information, multi - scale similarity and visual fidelity. A kind of image - based image fog quantification evaluation model QAMVP is proposed based on visual perception. The experimental results show that the model has a strong judgment force on the object group with obvious difference in the image quality evaluation. The accuracy rate of the sample group is 92% In the aspect of visual perception, , The MSE of the model index curve is obviously lower than the comprehensive evaluation method and the PSNR measurement method, which indicates that the model has certain advantages in the degree of visual perception and the correlation with the visual perception of the human eye. The results of the study can provide theoretical basis and practical guidance for the objective evaluation of the visible image in the low-altitude remote sensing.</p> </abstract>ARTICLE2018-04-09T00:00:00.000+00:00Design and Implementation of the Comprehensive Information Platform for Smelting Enterprises<abstract> <title style='display:none'>Abstract</title> <p>According to the development of information technology and the management of metallurgical enterprises, the paper puts forward the design scheme of the information platform for metallurgical enterprises, introduces the structure and function of the new type of metallurgical information platform. It realize loop online collection, hierarchical data computation, distributed database management and global WEB publishing capability. And improve the level of production automation, reduce energy consumption and improve the competitiveness of enterprises.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Design of Control System of Physical Fitness Treadmill Based on Embedded Technology<abstract> <title style='display:none'>Abstract</title> <p>Treadmill is the commonest method to get a good health, but traditional treadmill has limited functions and low intelligence. While embedded technology implements special function and is controlled by internal computer system. Putting embedded technology into treadmill can enhance the intelligence and add extra functions. In this paper, system structure and work way of treadmill were analyzed scientifically through embedded technology and the design of controlling system. The system hardware structure was analyzed and designed effectively, combined with the application of embedded technology and serial communication technology, realizing the optimization of setting and motion parameters of the treadmill science display. Motion information was recorded, and multimedia entertainment function was also embedded in it. Finally, the system was tested and had a relatively stable and reliable working state. In addition, it also had a beautiful appearance and met the needs of consumers. Therefore, treadmill control system based on embedded technology has the features with cost-effective, low cost and relatively complete fashion and has a good prospect.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Multi - point Cooperative Multicast Video Design and Research<abstract> <title style='display:none'>Abstract</title> <p>Internet era in the context of increasing popularity of mobile terminals, network video browsing has become an indispensable feature of wireless terminals. However, in order to improve the reliability of video multicast, this paper increases the gain system from the overlapping access points in the coverage area, because of the low reliability of the inter-link interference between the wireless networks. Improve the fairness of the system, and propose and design a multi-point broadcast scheme based on network coding and multi-access point collaboration. The program will first divide each video segment into the same segment and divide the access point completely and not completely interfere with the two models. The video multicast problem when the transmission range between the access points is overlapped is modeled as Linear programming optimization problem, a two-stage heuristic algorithm is designed to solve the problem. By using multiple access points to get the gain of space and time diversity, the reliability of data transmission is improved, and data is transmitted in parallel by allowing access points that interfere with , To improve the system utility. Finally, the simulation experiment is used to verify the validity of the number of packets to be decoded, the total amount of packets received and the fairness.</p> </abstract>ARTICLE2018-04-10T00:00:00.000+00:00Simulation Study Low Voltage Power Line Carrier Communication in Noisy Environments<abstract> <title style='display:none'>Abstract</title> <p>Studies have shown that there are a lot of low- voltage power line is one of the main obstacles to strong noise limit for data transmission quality. Power line noise can be divided into steady background noise, narrowband interference noise, sudden impulse noise and periodic noise. Background noise is distributed throughout the communication band, low-voltage power line up white Gaussian noise 22dB [133 or more. Sudden noise is generated by the random access or disconnect electrical equipment produced. Studies have shown that pulse interference effects on the quality of the low voltage power line carrier communication maximum. Literature statistics, intensity pulsed interference up 40dBuv.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Research of Petroleum Well Fuel Pump Measurement & Control System Based on Internet of Things Technology<abstract> <title style='display:none'>Abstract</title> <p>In order to realize remote automatic measurement and control of all petroleum well fuel pumps which are located in different regions of the crude oil production enterprises, this paper discusses and designs a petroleum well fuel pump measurement &amp; control system based on internet of things technology. The measurement &amp; control system uses a three-tier (perception layer, network layer and application control layer) form of the IOT (Internet of Things) structure, and then the function and feature of all layers are analyzed. As a focus, the hardware components and the control theory of the sensor instrument node and the aggregation instrument node, which are existed in the measurement &amp; control system, are given and discussed also. In the end, programming flow chart of the node microcontroller and main design software module content of the IOT center computer are depicted and proposed. The enterprise experiment result shows that the system has the advantages of easy operation and maintenance, low labor intensity, high time efficiency of measurement &amp; control and high precision with the traditional manual inspection methods of the petroleum well fuel pump to compare.</p> </abstract>ARTICLE2018-04-09T00:00:00.000+00:00Single Image Dehazing Based on Deep Neural Network<abstract> <title style='display:none'>Abstract</title> <p>This paper proposes a single image dehazing based on deep neural network that is to deal with haze image. In this paper, we build up a deep neural network to restore the hazy image.We test our method both objective and subjective and compare with classical method for dehazing. Our test shows that our method works better than the others in reducing Halo effect and also our method does well in restore colorful of input image. Finally, our method process faster.</p> </abstract>ARTICLE2018-04-23T00:00:00.000+00:00Fuel Cell Test System Based on AVR Single-chip Computer<abstract> <title style='display:none'>Abstract</title> <p>Fuel cell technology is considered to be the 21st century of choice for clean and efficient power generation technology, due to a fuel cell itself is a very complex physical and chemical process, the input output are different kinds of physical quantities, so a practical fuel cell must have accurate monitoring and control the performance of these physical quantities. Are briefly introduced in this paper the characteristic and principle of the fuel cell, the function of fuel cell system and the fuel cell test system are analyzed, and made a specific fuel cell test system implementation scheme. The system Atmega32 is the core, can finish the collection work of various data quantity very well, theapplication fuel cell inspection meter can complete to the battery voltage and the current measurement. This system has great flexibility, except for the detection of PEMFC, it can also be adapted to different types of fuel cell detection.</p> </abstract>ARTICLE2018-04-09T00:00:00.000+00:00en-us-1