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The rapid development of high-speed trains in our country puts forward higher requirements on safety monitoring of railway lines, which provides a new application scenario for the wireless sensor network(WSN). This paper presents a banded topology based on a WSN for the environmental monitoring of high-speed railways. A transmission model is established on the basis of the topology control. Considering...
With the rapid development of China's high-speed railway, operating environment monitoring of high-speed railway becomes the key technology which has an influence on speed and safety operation. In this paper, a routing protocol and topology of wireless sensor network based on event-trigger is proposed in view of the special property where the monitoring area is banded. And the triggering mechanism...
This paper presents the development of a low cost wireless real-time inertial body tracking system for virtual training. The system is designed to provide highly accurate human body motion capture and interactive three-dimensional (3-D) avatar steering, by combining low cost MEMS inertial measurement units (IMUs), wireless body sensor network (BSN), and Unity 3D virtual reality game engine. First,...
This paper proposes an iterative evolutionary algorithm with emulating nodes' local movement for searching the best localization accuracy in range-free scenario. All localization methods face a trade-off between the solution quality and computation cost. When sensor network localization in range-free scenario is considered as a constraint satisfaction problem, localization will reach the highest accuracy...
In this paper, a novel sensor scheduling scheme based on Hidden Markov Model (HMM) is proposed for wireless sensor network (WSN). The main idea of this paper is to devise an optimal scheduling algorithm to select sensor nodes to provide the next measurement for the next time. Sensor scheduling process is formulated as a double stochastic process to obtain the reasonable state path. In the process...
Aiming at the quality of coverage problem in wireless sensor networks, to improve the performance of network monitoring, this paper proposes deployment location strategy based on the connectivity and the evaluation function of Voronoi partition. The algorithm eliminates the isolated nodes, and then reduces the redundant coverage maintaining network connectivity. Finally, mobile nodes are moved to...
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