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Documents 基于无线网络的港口机械结构应力在线监测系统研究
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  • Author Author: sophie0love
  • Date Created: 28 Nov 2010 3:44 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:54 PM
  • Views 447 views
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基于无线网络的港口机械结构应力在线监测系统研究

随着经济全球化和物流业的不断发展,港口的装卸能力日益提高,港口机械也朝着大型化、重型化和高速化发展,这就对装卸设备各部件的管理提出了新的要求。作为港口机械骨架的金属结构承受着机构传动部分设备的自重及外载荷,其工作状态直接关系到整机的工作性能、安全性与可靠性,一旦发生故障会带来巨大的直接和间接损失。港口机械结构应力在线监测系统实现了港口机械状态实时监测的方法,它改变了传统的以人工为主的监测手段,大大提高港口机械检测的自动化程度,提高对港口机械结构损坏和突发事件的反应速度,缩短故障检测与维修时间,增加正常运转时数,提高生产效率。 长期的实时在线监测,一个重要的问题是信号数据的传输问题,采用有线信号传输需要铺设大量的电线电缆,而在环境恶劣的生产现场这些电缆极易受到破坏,使得信号失真甚至不能传输;再者,有线线路还存在信号衰减问题,雷击等自然灾害也容易对设备及信号传输造成损害。相对有线数据传输而言,利用无线网络进行无线数据传输有很多的优点:不需要大规模的线路硬件资金投入,系统建设速度快,只需架设若干天线即可,适应性好,几乎不受地理等客观环境的限制,扩展性好,系统扩展时只需将新增设备与系统相连即可,系统维护简便。 随着通信技术的不断发展,利用GPRS(General Packet Radio Service,通用分组无线业务)网络所提供的公用平台来实现数据的远程传输越来越成为一种非常便捷的信息传递手段。本文采用GPRS网络来实现港口机械状态的远程监测,完整的监测系统由数据采集、数据传输和数据处理三部分组成。

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