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Cable tension force is one of the most important criteria for assessing the work condition of a cable-stayed bridge. As a result, it is necessary to be monitored during operation. Rapid development of wireless sensor network (WSN) technology makes it possible to realize cable tension monitoring conveniently. In this paper, a wireless sensor network based monitoring system was proposed for cable tension...
This paper presents a hybrid sensor network with both fixed nodes and mobile nodes for monitoring and protecting Milu Deer, a specific kind of rare animals in China. Our goal is to provide unprecedented fine-grained environmental and individual data for zoologists and explore potential problems in hybrid sensor networks. Total 116 nodes have been deployed up to now, which consists of 30 mobile nodes...
The Mote architecture is the most popular platform used in wireless sensor network applications. In this architecture, microcontroller is responsible for all jobs, such as scheduling, sampling, computing, and communication. In the past one year, two practical applications: bridge structural health monitoring system and rare animal monitoring system are developed and deployed in Wuxi and Beijing, China...
In order to meet the requirements of the system running environments simulation for virtual machines' performance optimization and anomaly detection, an extensible tool named Characteristic Scenarios Simulator for Virtual Machine was developed base on the summarization and analysis of characteristic scenarios of virtual machines' running. The simulator takes an Analyser-Manager-Worker core architecture...
Kernel-level attacks can compromise the security of an operating system by tampering with key data and control flow in the kernel. Current approaches defend against these attacks by applying data integrity or control flow integrity control methods. However, they focus on only a certain aspect and cannot give a complete integrity monitoring solution. This paper tries our best to find out all resorts...
Gear wearing is the result of physical and chemical effect and it is also the ultimate reason of indirect condition information changes. On one hand, the condition information which can directly reflect the gear wear degree is difficult to measure. On the other hand, there is a mount of indirect condition information that is obtained by condition monitoring system which can reflect the health of gears...
During the tunnel construction, the soil loss and construction methods cause the soil deformation around the tunnel. The existed constructions and pipes are terribly affected by soil deformation. Hence, the significant studying on the soil displacement is implemented during tunneling construction. On the background of Hangzhou Metro Line1, the in-site monitoring is implemented to find the discipline...
Urban River is an important component of urban ecosystem. But urban rivers were polluted in different degrees. Lower energy consuming and in-situ treatment is a reliable and effective technology for water purification. The degradation effect was measured under different conditions such as HRT, reason and so on.
With the development of the Internet and network services, broadband user behavior tends to diversify. It is a rising challenge for the network operators to understand network user behavior. In this paper, we use the Postgres to sort the data records which are caught and extracted from the network monitoring equipment. Then we analyze the characteristics of the data by SPSS, such as login time, logout...
In order to develop a fault diagnosis system with low-cost and high-performance for power station, the integrated design to fuse fault diagnosis system with power station integrated automation system is introduced. The structure of the distributed intelligent fault diagnosis system, which is compatible with integrated automation system, and the hierarchical diagnosis model layered longitudinally by...
In this paper, an intelligent control scheme based on remote gaze tracking is proposed. First, the eye-moving video of the user is captured by ordinary resolution camera under the illumination of near infrared light sources, then the images of the eye region and the pupil region are extracted by processing the video in real time. We process the image of the pupil region, and get the coordinates of...
Grid_GIS is an SOA (service-oriented architecture) based grid GIS system for data and function sharing in multiple application domains. The Grid_GIS adopts a Super P2P (peer-to-peer) architecture to realize the distributed storage, query processing and dynamic integration of data and functions resources. The domain ontology knowledge and reasoning rules are used to support the semantics-based intelligent...
The pickled Chinese cabbage is one of the traditional fermented vegetables in China. In this article, the spontaneous and Lactic acid bacteria(LAB) inoculated fermentation methods were compared. The nitrite peak came forth at the middle stage of natural fermentation, but did not appear at the LAB starter fermentation. The pickled Chinese cabbage with natural and inoculated processing was safe, as...
According to the principle of electrostatic precipitation, the paper analyzes the appearance reason of anti-corona when higher resistivity powder is removed. Electrostatic precipitation can work with high efficiency and energy-saving by using new technique of power supply to avoid anti-corona. As well as it can reduce the thickness of powder by technique rebuilding for the electric control power supply,...
The paddy rice is one of the major crops in China and its planting areas increase year by year in Northeast China. In this study, a crop identification system in large scale based on two- phase classification using Remote Sensing (RS) is designed to do the rice identification. It includes the stratified sampling method to select the sample area using RS, and different spatial resolution RS images...
In this work we address the problem of coverage control of a group of mobile sensors in a convex and bounded environment which is subject to an isotropic Gaussian mixture (GM) model. We consider the case that the GM model is introduced by a known number of information sources with time-varying locations. We show by examples that in such a dynamic environment, it may not be possible and feasible for...
In this paper we present a novel remote pulse wave monitoring system with hybrid infrastructure network which is based on ZigBee protocol and LAN (local area network) technique. The advantage of this type of network infrastructure is that it can fully make use of the low power consumption of ZigBee protocol in sensor network and the long-distance transmission of LAN technique. Hence, it is a good...
The remote monitoring system of mine safety based on C/S and B/S mixed mode was developed by using the virtual instrument technology, network technology and database technology. The system consists of sensors,the underground substation, the ground monitoring center remote clients, through internet explorer, the remote client can browse the real-time monitoring data of mine safety, such as gas, wind...
In order to plan the network construction reasonable and ensure the quality of network service, it is important to measure the Link-bandwidth utilization and get the flow information. One of the methods to monitor network efficiently is based on flow-conservation, and the problem of searching a solution for this method could be deduced to solving weak vertex cover problem, which has been proved NP-hard...
This paper introduces techniques of OPC and multibus and gives an application of them which is based on Wincc(windows control centre) platform. The application has been using to integrate different kind of control systems together. The paper gives an example system, which is based on two layers, the Ethernet layer and Modbus layer. Based on the platform of Ethernet consisting of PC and PLC and C/S...
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