基于ZigBee网络的地铁基坑在线监测系统

发布时间：2018-03-06 00:21

本文选题：地铁基坑监测　切入点：ZigBee网络　出处：《南昌大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着全国大城市地铁建设的快速发展,地铁基坑建设成为地铁建设中的重要环节。地铁基坑属于较大危险性的工程之一,地铁基坑的施工监测成为地铁建设不可或缺的一部分。地铁基坑开挖过程中,由于受到内力作用,基坑土体会发生变形的情况,情况严重时,会造成基坑倒塌,危及生命财产健康。对地铁基坑的深层水平位移监测十分有必要。本文首先总结了地铁基坑监测的方法,通过对传感器系统,数据传输等问题分析,给出了系统的硬件组成结构。分析了导轮式固定测斜仪在地铁基坑深层水平位移监测的方法。本文根据地铁在线监测系统的要求,设计了测量深层水平位移的导轮式固定测斜仪,用于数据采集和传输的分布式采集节点以及网关。测试了导轮式固定测斜仪的数据精度与稳定性和温度特性,分析了导轮式固定测斜仪温度补偿方法,提高了数据稳定性,同时验证了温度补偿算法的有效性。数据展示采用安心云平台,现场采集数据通过网关上传到安心云,安心云可以存储大量数据进行展示与分析,并可以做地铁基坑施工过程的安全评估。本文重点设计了基于Zig Bee网络的地铁基坑深层水平位移的监测系统的传感器和分布式采集节点系统。最后,基于Zig Bee网络的地铁基坑监测系统相关研究和设计工作,在青岛R3地铁项目中得到了应用,达到了设计要求。
[Abstract]:With the rapid development of subway construction in large cities in China, subway foundation pit construction has become an important link in subway construction. The construction monitoring of subway foundation pit becomes an indispensable part of subway construction. During the excavation process of subway foundation pit, the soil of foundation pit will deform due to the action of internal force, and when the situation is serious, it will cause the foundation pit to collapse. It is necessary to monitor the deep horizontal displacement of subway foundation pit. Firstly, this paper summarizes the monitoring method of subway foundation pit, through the analysis of sensor system, data transmission and so on. The hardware structure of the system is given, and the method of monitoring the horizontal displacement of the underground foundation pit with the guide wheel fixed inclinometer is analyzed. According to the requirements of the subway on-line monitoring system, A guide wheel fixed inclinometer for measuring deep horizontal displacement is designed, which is used for distributed acquisition node and gateway for data acquisition and transmission. The data accuracy, stability and temperature characteristics of the guide wheel fixed inclinometer are tested. The temperature compensation method of the fixed clinometer with guide wheel is analyzed, which improves the stability of the data and verifies the validity of the temperature compensation algorithm. The data is displayed on the comfort cloud platform, and the data collected in the field is uploaded to the safe cloud through the gateway. The reassuring cloud can store a lot of data for presentation and analysis, And it can be used to evaluate the safety of subway foundation pit construction process. In this paper, the sensor and distributed acquisition node system of the underground foundation pit deep horizontal displacement monitoring system based on Zig Bee network are designed. The related research and design work of subway foundation pit monitoring system based on Zig Bee network has been applied in Qingdao R3 subway project, which has met the design requirements.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP274;U231;TN92

【相似文献】