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Affected by reservoir regulation, the complicated flow conditions and the traditional discharge monitoring means between Three Gorges and Gezhouba Dam are far cry from meeting demands of flood control, flood reporting and hydrological data processing. On the basis of H-ADCP on-line velocity monitoring data given by the CWRC, this paper extracts index-velocity by using wavelet analyzing techniques,...
Because MATLAB has strong computing power and image processing toolbox with abundant functions, it can provide a quick and convenient research platform for algorithms in order to improve study efficiency. This paper mainly presents two image fusion algorithms based on Weight Fusion and HIS transformation for multispectral data and high-resolution data conveniently, quickly and accurately in MATLAB...
Rough sets theory is a relatively new soft computing tool to deal with vagueness and uncertainty. It has received much attention of the researchers around the world and has expanded tremendously in the last twenty years. In this article we introduce the basic theory and character of rough sets and its applications in recent years are also pointed out. Then the theory of rough sets is introduced into...
In order to realize the sharing of medical information, coordination of medical, as well as the efficient and cost-effective health information system through the construction of a distributed and high-integrated platform, the medical and health information system infrastructure based on the cloud computing is proposed. And three kinds of application mode, SaaS, PaaS and IaaS, are applied in this...
In accordance with the actual demands of monitoring system for oil and gas pipeline, for instance, long transportation distance and many distributed stations, a kind of monitoring system based on the S7-400 series PLC and PROFIBUS field bus was designed and realized in this article. It has the characteristics of the following: supporting multi-master station, excellent real time, high reliability,...
It is introduced that the present situations and strategy about the maintenance works of USB apparatus on ship in this paper. In order to increase measurement efficiency, a remote back up system is proposed to complete measuring and controlling task successfully. This system is used for monitoring and diagnosing the Shipborne USB based on LXI( LAN extensions for Instrumentation). The signals and measuring...
The paper designs a kind of communication system based on a new type Programmable Logic Controller (PLC) composed of LPC2478+FPGA and CAN bus is used as the system communication mode. Based on the analysis of the basic structure of the PLC and the communication features, the identifier customization method is used to design CAN protocol aiming at requirements for system communication features; the...
An SOA-based emergency logistics system based on GPS / GIS is presented for that the emergency logistics system can not meet the requirement of managing public emergency frequently. The intelligent vehicle system based on GPS and monitoring platform is designed for real-time data interaction. Ontology-based emergency logistics repository, emergency logistics framework, early-warning rule base and...
Blue-green algae, widely distributed almost all over the world, is one kind of the most ancient and primitive algae plants. The toxin and smell that blue-green algae releases out endanger human life and health directly, it is of great significance to study the mechanism of algae outbreak. The paper presents a method for the algae simulation based on wireless sensor networks and particle systems theory...
By simplifying and limiting current circuit model of metro power supply, this paper firstly showed stray current production and its damage, then analyzed bilateral power supply system using resistor network theory, and constructed stray current analytical model of bilateral power supply, computer simulation in different conditions of stray current distribution was carried out, the results show that...
The following topics are dealt with: artificial intelligence theory and applications; computer science and applications; network technology; communication technology; system modelling and simulation; automation and control; software engineering; and information system design.
It is important to achieve food safety using the food monitor system constructed with modern information technology. This paper firstly proposes a three-dimensional coding based on EAN·UCC to identify each phrase's information of food supply chain consistently. And then the main data model and kernel function of food monitor system are analyzed. After that, the logical structure and physical deploy...
The equivalent circuit model is proposed in this paper, which is based on RC parallel networks, in order to model I–V performance and transient behavior of battery. The model consists of a series resistance, a self-discharge resistance and two RC networks. The I–V performance and transient behavior of the model are researched in time domain. Battery model efficiency is proved by frequency domain analysis...
Cognitive radio (CR) is an emerging intelligence wireless communication technology now. In this paper, a new working platform model in the environment of CR has been put forward after the analysis had been finished based on the physical layer and the research of the physical layer had been done. First, a new communication model based on FPGA has been designed and a new algorithm of RFFE (RF Front...
Support vector machine (SVM) algorithms were introduced to analyze the quality of seawater, and two models were constructed to analyze different seawater qualities, one is the SVM model for recognizing two kinds of seawater and the other is hierarchical support vector machines (H-SVMs) model for recognizing multi-seawater. The decision function of the first model for recognizing two kinds of seawater...
Developed a fast handover method based on channel quality messages associated with the priority messages in mobile multi-hop relay networks. The Relay Station (RS) and attached all terminals can complete the fast handover in fixed, nomadic, mobile relay station, when add / remove relay station in the existing network, and add / remove relay station, in the existing communication path, through environmental...
Using GIS technology and the slope stability algorithm, the landslide stability system realizes intellectualized slope monitor calculation. The system can call lots of mainstream limit equilibrium analysis algorithms, read charts and calculate with computer, greatly reduce the influence of errors, and improve the accuracy of the final result, provide reliable basis for monitors. The system is developed...
With the development of embedded technology, embedded data acquisition and remote monitoring technology in production data monitoring application has become a new trend. Based on ARM-Linux embedded system, combined with open-source software SQLite and QT, in this paper we designed and implemented one kind of embedded data acquisition and remote monitor control system. This system realizes the data...
In this paper the conception, feature and Technical Composition of smart grid is expounded, and the development process and present research status of smart grid home and abroad as well as the practical significance of developing smart grid in China are introduced. The paper analyzes the characteristics and direction of China's smart grid development, and point out that the development of smart grid...
With the development of wind power technology, the wind farm becomes a large station in which many kinds of devices are. These devices are from different companies having their own monitoring systems, so it is hard to monitor and manage the whole wind farm on one device. This paper design a large-scale wind farm monitoring system based on Browser/Server in which power quality monitoring system, power...
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