起重机结构应力在线监测与诊断系统研究专业班：控制工程101班姓名：钱凯学号：104972103556 任课教师：刘红丽指导教师：徐沪萍目录第1章绪论 (3)第2章应力在线检测设计 (4)2.1电阻应变计结构 (4)2.2基于应变电测法的应力在线监测方法 (6)第3章无线局域网络通信技术及检测应用 (1)3.1无线局域网络通信协议标准 (1)3.2无线局域网通信技术在起重设备监测中的应用 (3)第4章监测系统硬件设计 (1)4.1测点应力数据处理单元 (1)4.1.1STC12C5410AD单片机结构 (1)4.1.2模数转换程序模块 (2)4.1.3串口转发数据程序模块 (4)4.2无线数据收发单元 (5)4.3硬件抗干扰分析 (6)第5章监测系统上位机软件设计 (7)5.1软件开发平台 (7)5.2系统软件流程设计 (7)结论 (1)参考文献 (2)摘要起重机作为一种装卸设备，广泛应用于工厂、货场、港口等场所，而且也朝着大型化、重型化和高速化发展，在货运行业发挥着重要的作用。
作为起重机械的金属结构承受着机构传动部分的自重及外载荷，其工作状态直接关系到整机的工作性能、安全性和可靠性，一旦发生故障会带来巨大的直接和间接损失。
状态监测和故障诊断自上世纪60年代问世以来,其迅速的发展速度和研究规模取得了令人鼓舞的成果,目前在各行业中都有着广泛的应用,大型机械设备的结构状态监测与故障诊断愈来愈引起重视。
但起重机结构应力在线监测的研究方面发展较为缓慢,因此对起重机结构应力进行在线监测的研究具有广阔的前景和巨大的潜力。
本文就是在此背景下展开研究的。
本文从起重机金属结构的特点出发,结合起重机的具体工作条件,对起重机结构应力在线的监测进行研究,以现代机械测试与试验技术为研究手段,利用传感元件和无线数据传输原理及相关知识,来设计起重机结构应力在线监测与诊断系统。
关键词：起重机电阻应变式传感器在线监测无线局域网可视化程序语言AbstractCrane as a handling equipment, widely used in factories, the freight yard, ports and other places, and it becoming larger, heavier and faster accordingly; plays an important role in the cargo industry. As a frame of crane machinery, metal structure is enduring the weight of transmission mechanism itself and other load. Metal structure’s working condition relates directly to the whole machine’s operation perfor mance, safety and reliability. Malfunctions could cause great direct and indirect loss.Condition monitoring and fault diagnosis since the advent of the last century since the 60's, the rapid pace of development and study of the size of the encouraging res ults, the current in the industry have a wide range of applications, the structure of large-scale machinery and equipment condition monitoring and fault diagnosis more and more attention. However, the mechanical structure of online monitoring of crane stress research in the development of relatively slow, so the stress on the mechanical structure of crane-line monitoring of the research carried out there are broad prospects and great potential. This article is in this context of the study.This article from crane characteristics of the metal structure, combined with the specific crane working conditions, stress on the mechanical structure of the crane to monitor the online study to investigate the mechanical testing of modern technology for research and experimental means, the use of sensors and wireless data transfer theory and related knowledge to design the structure of online monitoring and diagnosis system of crane stress.Key words：Crane Resistance strain gauge sensor Online monitor Wireless LAN Visual Basic第1章绪论调研和文献检索显示，目前国内外对大型机械设备，特别是起重机金属结构应力在线监测与诊断的实验研究比较少，本课题以起重机为研究对象，针对金属结构应力监测中动态数据采集、无线数据传输、专家诊断系统等理论与应用进行系统而深入的研究。
