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This paper describes an enterprise data warehouse management technology in practical application, proposes the establishment from the data warehouse. With the problem emerging in aspects of real-time and regulatory warehouse management, it applies technology combining RFID and the WSN technology to the storage management. It achieves intelligent storage environment which meet the requirement of materials...
The wireless sensor networks (WSN) is one of the most significant technologies in the 21st century. In recent years, achievements in micro-sensor technology and low-power electronics make WSN become realities in applications. In this paper, we propose a system for WSN based on environmental monitoring. The system can monitor several environmental parameters such as underground water level, barometric...
In order to prolong the WSN's lifetime, a refined protocol named LEACH-H (hybrid cluster head selection LEACH) is proposed in this paper. In the first round of Leach-H, the base-station selects a cluster head set through adopting simulated annealing algorithm; in the followed rounds, the cluster heads will select new cluster heads in their own cluster. This will not only solve the problem that the...
This positioning process of the wireless sensor network (WSN) nodes is interfered by multipath, multiple access, especially NLOS transmission effect, Basing on TOA/TDOA positioning technology, the article brings forward TOA/TDOA measurement data model, and improves on a location algorithm which bases on least square support vector machine (LS-SVM). On one network with uniformly distributed nodes,...
Biological systems exhibit remarkable adaptation and robustness in the face of widely changing environments. Currently speaking, we often imitate the properties of biological systems. Based on this thought, it also exists the analogous situation in the WSNs (wireless sensor networks). Survivability is the ability to provide essential services in the presence of attacks and failures, and recover full...
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