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In order to achieve more effective monitoring and to solve the heavy workload issues of installation and removal on the existing wired-system logging site, thus guarantee the safety in normal operation, a wireless logging instrument system is designed to monitor the oil drilling platform. This paper introduces the overall architecture of the wireless system, and develops the hardware system—in which...
How to save energy for target tracking in WSNs is an important issue. The basic idea of energy-saving method is using sleep mechanism. However, if nodes enter sleep state too much, targets may lose easily from the sleeping nodes. It is high consuming the energy to find back these losing targets. Thus, it would notice accuracy of tracing targets when saving energy. In this proposal, it offers a scheme...
Bridge is an important component of modern transportation systems and deflection is an important index for bridge's safety evaluation. In this paper, a method of deflection measurement using wireless inclination sensors is presented. Firstly, based on various bridge deflection measuring methods, the method of deflection measurement using wireless inclinometer sensor is introduced. Secondly, a low-power...
In wireless sensor networks, sensor nodes collect and forward environmental data back to the base station via multi-hop communications and nodes closer to the base station take relatively heavier communication loads. Therefore, an attacker may identify the location of the base station and cause security breaches by analyzing the network traffic. In this paper, we create traffic decoys that also sustain...
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