基于智能移动终端的土木结构集群云监测探索研究

发布时间：2018-04-30 23:29

本文选题：云监测 + 土木工程　；参考：《大连理工大学》2014年硕士论文

【摘要】：自然灾害造成的灾难是触目惊心的,对房屋建筑和桥梁结构都产生了巨大的威胁,造成了巨大的经济损失,并威胁着人类的生命安全。但是自然灾害是无法避免的,所以为了减少经济损失和保护人类的生命安全,需要建立完善的结构健康监测系统,对结构性能进行健康监测,及时发现结构损伤,对可能出现的灾害进行预测,并评估结构安全性。目前,结构健康监测系统已取得了比较完善的发展,在土木工程结构,尤其是桥梁结构中得到了飞速的发展,但目前只在一些特定大型结构上使用,并没有面向大众的监测方式,为了更加方便快速的实现结构健康监测,本文提出云监测的概念,并在此基础上进行了一系列的探索研究。主要工作如下： 1.提出面向土木工程结构云监测的概念,并进行了详细阐述。选择智能手机作为云监测终端和控制中心,以此初步实现云监测的基本功能。结合当今智能手机的发展状况以及常用手机的参数以及其内置传感器的传感性能,论证了智能手机作为云监测智能终端的可行性。 2.在iphone4s的IOS平台上开发了一套云监测软件系统,包括数据采集程序、指令控制程序以及网络存储程序。实现对GPS信息、加速度、倾角等监测信息的监测。 3.将该云监测系统应用到桥梁索力监测中,分别在实验室的索模型、大连华录桥、哈尔滨四方台大桥上进行了实验验证,采用智能手机加速度采集系统与压电式加速度传感器和力平衡式加速度传感器的结果进行对比分析,结果表明本论文研发的移动智能终端能够准确测量拉索索力。 4.为了拓展移动智能终端的可监测参数,以及针对目前位移监测困难之现状。研究了基于激光图像识别原理的动态位移监测技术,开展了静态、动态对比试验,并进行了二层框架的动态位移试验。试验结果证实了使用摄像功能进行位移监测的可行性,为后续的研究奠定了基础。且该方法成本低廉,利于将来的应用推广。
[Abstract]:The disaster caused by natural disasters is shocking, which has caused great threat to the building and bridge structure, caused huge economic losses, and threatened the safety of human life. But natural disasters are unavoidable, so in order to reduce economic losses and protect human life, it is necessary to establish a sound structural health monitoring system to monitor the structure performance and find structural damage in time. Predict possible disasters and evaluate structural safety. At present, the structural health monitoring system has made relatively perfect development, and has been rapidly developed in civil engineering structures, especially in bridge structures, but it is only used in some specific large structures. In order to realize the structural health monitoring more conveniently and quickly, this paper puts forward the concept of cloud monitoring, and carries on a series of exploration and research on this basis. The main tasks are as follows: 1. The concept of cloud monitoring for civil engineering structures is put forward and described in detail. In order to realize the basic function of cloud monitoring, smart phone is selected as the cloud monitoring terminal and control center. Considering the development of smart phone, the parameters of common mobile phone and the sensing performance of its built-in sensor, the feasibility of using smart phone as a cloud monitoring intelligent terminal is demonstrated. 2. A cloud monitoring software system is developed on the IOS platform of iphone4s, including data acquisition program, command control program and network storage program. Achieve the monitoring of GPS information, acceleration, inclination and other monitoring information. 3. The cloud monitoring system has been applied to bridge cable force monitoring, and has been tested in laboratory cable model, Dalian Hualu Bridge and Harbin Sifangtai Bridge. The results of smart phone acceleration acquisition system, piezoelectric acceleration sensor and force balance acceleration sensor are compared and analyzed. The results show that the mobile intelligent terminal developed in this paper can accurately measure the cable force. 4. In order to expand the monitoring parameters of mobile intelligent terminals and the current situation of displacement monitoring difficulties. The dynamic displacement monitoring technology based on the principle of laser image recognition is studied. The static and dynamic contrast tests are carried out, and the dynamic displacement tests of the two-story frame are carried out. The experimental results confirm the feasibility of using the camera function to monitor displacement and lay a foundation for further research. The cost of the method is low, which is beneficial to the future application.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U446;TU317

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