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This paper presents the design and implementation of an Embedded Laboratory Security Monitoring System (ELSMS). The system includes a web server which acquires video information through camera, and Wireless Sensor Network (WSN) which gets environmental parameters through sensors and sends them to the web server. Users can access the Monitoring Server (MS) through PCs or Wireless Mobile Terminals(WMT)...
According to the limitation of resources in wireless sensor network (WSN), this paper presents a new key pre-distribution scheme based on plane grid. It helps not only to economize the space of storage and keep low consumption, but also ensure that all neighborspsila nodes can establish pair-wise keys directly, however, has a poor safety performance. Then we extend the scheme to three-dimensional...
Wireless sensor networks (WSN) are used in many spheres, such as industry, commerce and military. WSN is composed of hundreds of thousands of sensor nodes with limited energy, computation and storage capacities. Thus the data aggregation technique becomes important because it can help to improving bandwidth usage and energy utilization. But the unprotected aggregation schemes are vulnerable because...
Wireless sensor networks will be widely deployed in the future for monitoring important environmental conditions, security, and health care. One of the most important challenges in the implementation of such networks is maximizing the area detected and minimizing energy dissipation in the movement. In this paper, we present some effective methodology for modeling the problem of maximum cover and minimizing...
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