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Date of Publication:2015-01-01

Journal:吉林大学学报 工学版

Affiliation of Author(s):机械工程学院

Issue:6

Page Number:1974-1979

ISSN No.:1671-5497

Abstract:A software architecture of wireless sensor network system, which consisted of data acquisition layer, control and communication layer and data storage and analysis layer, was established for distributed stress monitoring in high-speed railway track. A concurrent data processing method for the information from multi-sensor nodes was proposed to improve the key characteristics such as the data integrity and rapid response. The data storage and management model was constructed based on relational databases and data analysis machine to manage and analyze the continuously generated data. In addition, the data flow of the interactive manipulation for client software, called 'Metadata capture-Ontology mapping-Data acquisition-Data visualization', was designed to display the equipment distribution and sensing data. Finally, the software architecture was implemented on the wireless sensor network platform at the China Academy of Railway Science. Experiment results show that the packet loss rate was less than 5% and transmission delay was less than 1 min. The performance of the WSN-based software architecture can satisfy the requirement of the distributed monitoring of high-speed rail stress. ©, 2015, Editorial Board of Jilin University. All right reserved.

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