Development of localization and time-synchronization methods for wireless sensor network:For mobile measurement of structures
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概要
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This paper presents an implementation of localization(i.e., determination of positions) and time synchronization methods for sensor network. Relative positions between sensor nodes are estimated based on acoustic ranging through Inverse Delaunay Algorithm. Noise tolerant acoustic ranging algorithm that employs digital signal processing techniques is implemented in an off-the-shelf sensor platform (Mica2). Field experiment was conducted with 21 sensor nodes to evaluate the accuracy of the localization. Besides a time synchronization method between sensor nodes based on time stamp is developed. Experiments show that the shift of synchronization is under 2ms for 500Hz sampling.
- 公益社団法人 土木学会の論文
公益社団法人 土木学会 | 論文
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