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随着卫星定位技术在现代交通领域的应用,公路基础设施安全监测中也采用了基于卫星定位原理的位移监测技术。目前卫星定位技术的测量精度最高能够达到毫米级,采样频率能够达到20Hz,而且实时解算数据,并具能够适应复杂恶劣的工作环境。本文总结了目前卫星定位技术在大跨径桥梁运营期变形监测中的应用情况,结合示范工程,完成了卫星定位技术应用于位移监测系统的集成和数据挖掘。
With the application of satellite positioning technology in the field of modern transportation, the displacement monitoring technology based on the principle of satellite positioning has also been adopted in the safety monitoring of highway infrastructure. At present, the highest precision of satellite positioning technology can reach the millimeter level, the sampling frequency can reach 20Hz, and the data can be solved in real time, and can adapt to the complicated and harsh working environment. This paper summarizes the current application of satellite positioning technology in deformation monitoring during the operation period of large-span bridges. Combined with the demonstration project, the satellite positioning technology is applied to the integration and data mining of the displacement monitoring system.