【作者】 王亮；

【导师】 蔡坤宝； 刘晓明；

【作者基本信息】 重庆大学 ， 信号与信息处理， 2013， 硕士

【摘要】 机械传动设备是机械系统的重要组成部分，对机械系统的正常工作起到了至关重要的作用。由于现代机械系统正日趋朝向精密化、自动化和系统化的方向发展，从而对机械系统的安全性和可靠性提出了更高的要求。机械设备监测系统能够在机械系统运行过程中监测系统的运行状态，并提出相应的改进要求，进而提高系统的精密化水平。机械传动设备作为机械系统的重要组成部分，必然需要对它进行监测。但是传统的机械传动设备监测系统由于成本较高、安装不便、测量精度较低以及测量位置不佳等缺点，很难满足现代机械系统的监测标准。随着嵌入式技术、无线通信技术和现代测量技术的快速发展，可以对传统的机械传动设备监测系统进行改造，提高监测系统的精度和可靠性。通过对监测系统的需求进行分析，对比各解决方案，同时为了保证监测系统的可靠性和监测信号的准确性，本文采用以ARM微控制器为核心构建嵌入式系统进行机械传动设备的监测。系统分为数据采集器和数据接收器，其中数据采集器采用基于ARM Cortex-M3架构的LPC1768微控制器，直接安装在机械系统的传动设备上，利用小体积、低功耗的应变传感器和温度传感器对传动设备进行监测，获取传动设备的运行状态，并利用CC1101无线芯片进行监测数据的传输。并利用功率控制模块控制功耗最大的应变传感器以降低功耗。数据接收器采用广泛使用的高性能嵌入式处理器S3C2440，并移植嵌入式Linux系统，使用Qt/Embedded图形用户界面库进行软件开发，提供了高质量的软件和良好的用户体验。数据接收器主要完成人机交互，对用户的操作做出响应；同时通过CC1101无线芯片与数据采集器进行通信，将用户的命令转发给数据采集器，接收数据采集器采集到的监测数据，并以图形的形式展现给用户。经过两年的研制，实现了系统的全部功能，开发出了具有低功耗、高可靠性的嵌入式机械设备无线监测系统。并与重庆大学机械传动国家重点实验室合作，对宁波宝新不锈钢有限公司的轧机和北京北方车辆研究中心的某摩擦片进行了监测，取得了良好的监测结果。更多还原

【Abstract】 Mechanical transmission equipment is an important part of mechanical systems,and it plays a crucial role in the work of mechanical systems. Mechanical systems arebecoming more and more precise, automatic and systematic nowadays, which lead tohigher requirements on the safety and reliability of mechanical systems. Mechanicalequipment monitoring system is capable of monitoring the running state of themechanical equipment, suggesting some requirements to improve the precision level ofthe system. Mechanical transmission equipment must be monitored as it is an importantpart of the mechanical system. The traditional monitoring system for mechanicaltransmission equipment is expensive, inconvenient to install, with lower measurementaccuracy and poor measurement position. And it is difficult to meet the monitoringstandards of modern machinery systems. With the rapid development of embeddedtechnology, wireless communication technology and modern measurement technology,it is possible to transform the traditional monitoring system, to improve the accuracyand reliability of the monitoring system.By analyzing the demand of the monitoring system, comparing various solutions,the monitoring system introduces embedded technology with ARM microcontroller asthe core control device to monitor the mechanical transmission equipment. Themonitoring system is reliable and the signal collected is accurate. The monitoringsystem has the data acquisition unit and data receiver. The data acquisition unit adoptsLPC1768microcontroller based on the ARM Cortex-M3architecture, which is installeddirectly on the transmission equipment. LPC1768microcontroller controls the smallsize, lower-power dissipation strain and temperature sensor to monitor the transmissionequipment. And then it controls the CC1101wireless chip to transmit the data achievedby the sensors. Data acquisition unit also adopts a power control module to reduce thepower consumption of the strain sensor which is the most power-dissipation device.The data receiver adopts a high-performance embedded processor named S3C2440,with embedded Linux system and Qt/Embedded graphical user interface librarytransplanted. The software of the data receiver is high-quality and the user experience isgood. The data receiver is aimed to interact with human, response to user’s operation,and communicate with data acquisition unit through a CC1101wireless chip. The user’scommand is sent to the data acquisition unit, and the data collected by data acquisition unit is received and presented to the user in a graphical form.After two years of development, an embedded mechanical equipment wirelessmonitoring system is developed with full functionality. It is characterized by low-powerconsumption, and high reliability. The system has been successfully used in the projectwith the State Key Laboratory of Mechanical Transmission of Chongqing University.Within the project, a mill in Baoxin Stainless Co., Ltd at Ningbo and a friction plate inNorth Vehicle Research Center at Beijing have been monitored, and good monitoredresults have been achieved.更多还原