全功能无线同步桥梁结构监测系统的研究及应用

大型桥梁在改善城市交通状况及促进社会经济发展等方面起着重要作用.长期监测运营中的桥梁,并及时评估其安全状况对保障人们生命财产安全方面具有重要意义.开发了可以综合监测桥梁结构的全功能无线传感系统,提出了精度满足系统要求、能量开销更低的时间同步算法LP-TPSN.并对厦门某悬索桥进行了桥面振动测试.结果表明,该无线监测系统测试桥面振动准确度高,同时具有操作方便、实时性好、同步开销低等特点,在桥梁结构监测及状态评估领域中有良好的应用前景.

Research and Application on Full-Function Wireless Synchronous Bridge Structural Monitoring System

Large bridges play a significant role in the development of both the urban traffic condition and the social economy.It is of high importance to monitor the operational bridges and to assess their security from the perspective of people's life and property safety.In this paper,a wireless bridge structure monitoring system was developed and a lower energy cost time synchronization algorithm LP-TPSN which can meet the system requirement was proposed.Then the deck vibration test of a bridge in Xiamen was carried out.The study shows that the wireless sensing system has the advantage of high accuracy,and the feature of easy operation,good instantaneity,and low overhead costs,which has a good application prospect in the field of structure monitoring and condition assessment of the bridges.