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基坑测斜工作是保障基坑安全的重要环节,但目前仍采用人工使用测斜仪监测的常规方法,不仅工作效率低,而且监测频率低,无法满足数据实时采集和自动化管理的要求。结合物联网技术,研究开发了一种基于倾角传感器的远程自动基坑测斜系统。本文介绍了其工作原理,系统构成,以及对其性能进行的试验。经测定,传感器分辨率为0.000002rad,长期数据误差0.0002rad,工程适用精度为0.0001rad。在实验室环境下,系统防水性达到100m水压,测量相对误差为0.12mm/m,初步满足了基坑工程监测的远程自动化要求。
It is not only low efficiency but also low monitoring frequency, which can not meet the requirements of real-time data acquisition and automation management. In combination with Internet of Things technology, a remote pit-based inclinometer system based on tilt sensor was developed. This article describes its working principle, system structure, and its performance test. The measured sensor resolution of 0.000002rad, long-term data error of 0.0002rad, engineering accuracy of 0.0001rad. Under laboratory conditions, the system water resistance reaches 100m water pressure and the relative error of measurement is 0.12mm / m, which initially meets the remote automation requirements of foundation pit engineering monitoring.