智能桥梁结构健康监测系统设计
发布时间：2019-04-11 06:54
【摘要】：交通运输是一个国家的经济命脉,而交通基础设施中的一些枢纽结构则是关系着整个交通运输行业健康发展的关键组成部分,对这些要道建筑结构的建设和维护对于一个国家基础设施建设来说是一个十分重要组成部分,这同时也反映了一个国家的经济发展与科技力量。对桥梁进行监测不仅可以及早发现桥梁的病害情况,而且能为维修和养护管理决策提供可靠的依据和指导。本文设计了一种基于6Lo WPAN无线传感网络的智能桥梁结构健康监测系统。本系统将3G无线传输技术和6Lo WPAN技术相结合,构建了一个无线传感网络桥梁结构状态监测平台,建立了数据采集节点、中心节点(网关)和远程服务器这三者组成的多层次的网络架构。系统通过安装在桥梁各个部位的各类传感器来采集相关数据参数,应用6Lo WPAN模块将数据汇聚至中心节点(网关)处,再由中心节点(网关)通过3G模块将数据传送至后方服务器。为了满足系统长期部署在野外的特殊需求,本文还为此设计了太阳能和锂电池双供电的电源系统。为了确保访问质量以及能让用户很方便地远程登录Web站点来查询桥梁结构的相关数据,本文的系统主站的软件设计为B/S结构。在本文中,基于智能桥梁结构健康监测系统,设计了系统的硬件电路,包括CC2530芯片外围电路,中心节点(网关)主控芯片S3C2440A外围电路、EM770W驱动电路和电源电路。系统软件方面主要包括:无线传感节点中各个传感模块的驱动电路、节点之间的数据收发程序和中心节点(网关)的数据收发程序,为6Lo WPAN设计了一个适配层用以保证WSN和IPv6之间通讯协议的转换,实现无线传感网络和互联网的无缝连接。完成了contiki操作系统在CC2530上的移植。最终对整个系统进行了各个模块的测试和联机整调,测试表明系统能够准确采集各个参数并传输至后方服务器上,且运行状态良好,能够满足设计要求。
[Abstract]:Transportation is the lifeblood of a country's economy, and some of the hub structures in the transportation infrastructure are the key components of the healthy development of the entire transport industry. The construction and maintenance of the architectural structure of these main roads is a very important part for a country's infrastructure construction, which also reflects a country's economic development and the strength of science and technology. Monitoring of bridges can not only detect the disease of bridges early, but also provide reliable basis and guidance for decision-making of maintenance and maintenance management. In this paper, an intelligent bridge structure health monitoring system based on 6Lo WPAN wireless sensor network is designed. This system combines 3G wireless transmission technology with 6Lo WPAN technology, constructs a wireless sensor network bridge structure condition monitoring platform, and establishes the data acquisition node. A multi-layer network architecture composed of central node (gateway) and remote server. The system collects the relevant data parameters by various sensors installed in each part of the bridge, and aggregates the data to the central node (gateway) by using 6Lo WPAN module. Then the data is transferred to the rear server by the central node (gateway) through the 3G module. In order to meet the special requirements of long-term deployment of the system in the field, a solar and lithium battery power supply system is designed for this purpose. In order to ensure the quality of access and make it easy for users to log on to Web site remotely to query the relevant data of bridge structure, the software design of the system master station in this paper is B / S structure. In this paper, based on the intelligent bridge structure health monitoring system, the hardware circuit of the system is designed, including the peripheral circuit of the CC2530 chip, the peripheral circuit of the central node (gateway) master chip S3C2440A, the EM770W drive circuit and the power circuit. The software of the system mainly includes the driving circuit of each sensor module in the wireless sensor node, the data transceiver program between the nodes and the data transceiver program of the central node (gateway). An adaptation layer is designed for 6Lo WPAN to ensure the conversion of communication protocol between WSN and IPv6, and to realize the seamless connection between wireless sensor network and Internet. The transplant of contiki operating system on CC2530 is completed. Finally, each module of the system is tested and adjusted on-line. The test results show that the system can accurately collect the parameters and transmit them to the rear server, and the system runs in good condition and can meet the design requirements.
【学位授予单位】：南京林业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U446
本文编号：2456178
[Abstract]:Transportation is the lifeblood of a country's economy, and some of the hub structures in the transportation infrastructure are the key components of the healthy development of the entire transport industry. The construction and maintenance of the architectural structure of these main roads is a very important part for a country's infrastructure construction, which also reflects a country's economic development and the strength of science and technology. Monitoring of bridges can not only detect the disease of bridges early, but also provide reliable basis and guidance for decision-making of maintenance and maintenance management. In this paper, an intelligent bridge structure health monitoring system based on 6Lo WPAN wireless sensor network is designed. This system combines 3G wireless transmission technology with 6Lo WPAN technology, constructs a wireless sensor network bridge structure condition monitoring platform, and establishes the data acquisition node. A multi-layer network architecture composed of central node (gateway) and remote server. The system collects the relevant data parameters by various sensors installed in each part of the bridge, and aggregates the data to the central node (gateway) by using 6Lo WPAN module. Then the data is transferred to the rear server by the central node (gateway) through the 3G module. In order to meet the special requirements of long-term deployment of the system in the field, a solar and lithium battery power supply system is designed for this purpose. In order to ensure the quality of access and make it easy for users to log on to Web site remotely to query the relevant data of bridge structure, the software design of the system master station in this paper is B / S structure. In this paper, based on the intelligent bridge structure health monitoring system, the hardware circuit of the system is designed, including the peripheral circuit of the CC2530 chip, the peripheral circuit of the central node (gateway) master chip S3C2440A, the EM770W drive circuit and the power circuit. The software of the system mainly includes the driving circuit of each sensor module in the wireless sensor node, the data transceiver program between the nodes and the data transceiver program of the central node (gateway). An adaptation layer is designed for 6Lo WPAN to ensure the conversion of communication protocol between WSN and IPv6, and to realize the seamless connection between wireless sensor network and Internet. The transplant of contiki operating system on CC2530 is completed. Finally, each module of the system is tested and adjusted on-line. The test results show that the system can accurately collect the parameters and transmit them to the rear server, and the system runs in good condition and can meet the design requirements.
【学位授予单位】：南京林业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U446
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