【作者】 李钢；

【导师】 张卫钢；

【作者基本信息】 长安大学 ， 计算机软件与理论， 2010， 硕士

【摘要】 目前,我国在土木工程健康状态监测领域存在着测量方法单一,数据采集困难,数据处理低效等问题。因此,论文对土木工程健康状态监测技术进行了研究。论文以国内某特长隧道的通风竖井为对象,在对土木工程健康状态监测需求进行分析和研究的基础上,采用了理论、试验与工程验证相结合的方法,设计并实现了一套基于先进通信技术的土木工程健康状态信息远程监测系统。首先设计了以CPLD、嵌入式系统为核心电路的前端测频系统,实现了多个传感器自动接入测量的功能。其次,根据工程实际情况,选取无线通信与有线通信相结合,专网与公网相结合的数据传输方案。用无线数传模块完成竖井顶部测量点数据到底部的传输,采用485总线完成竖井底部测量点及顶部数据到主隧道接力点的数据传输,利用GSM公网实现了主隧道接力点到办公室的数据传输,从而达到了土木工程健康状态信息数据远程监测的目的。最后用C语言设计了前端采集和专网通信程序,采用Visual C++6.0和数据库Access2003设计了后台数据监测管理系统。通过实际工程的试用,表明所设计的系统运行稳定,数据采集正确,达到了预期要求,具有很高的工程实用价值。论文的研究成果已获得国家实用新型专利。更多还原

【Abstract】 At present, uniformity of measuring methods, difficulty in data acquisition, inefficiency of data processing and some other problems exist in the health status monitoring field of domestic civil engineering, thus health status monitoring techniques of civil engineering projects are studied in this paper.With some domestic ultra-long tunnel ventilation shaft as the study object, an advanced communication technology-based remote health status monitoring system of civil engineering projects is designed and implemented on the basis of the requirement analysis and research of civil engineering projects health status monitoring and the application of an approach with the combination of theories, tests and engineering verifications.First, a front end frequency measuring system with a CPLD and an embedded system as the core circuit is designed to realize the automated connection and measurement of multiple sensors. Second, according to practical project condition, a data transmission scheme with the integration of wireless and wired communications as well as the combination of a private network and a public network is selected. Data transmission from measuring nodes on the top of the shaft to the bottom is completed by wireless data transmission modules, data transmission from measuring nodes at the bottom of the shaft to relay nodes in the main tunnel is completed through a RS485 bus, and data transmission from relay nodes in the main tunnel to the office is completed through the GSM network, thus the remote health status monitoring of civil engineering projects is achieved.Finally, a program for the front end acquisition and the private network communication is designed in C language, and a background data monitoring management system is designed with Visual C++6.0 and Access 2003.Test results in practical projects reveal the stability of the system, the correctness of data acquisition and the satisfaction of expected requirement, showing great application value of this system. A national utility model patent for this research has been approved.更多还原