【作者】 李国龙；

【导师】 王成彪； 刘艳武；

【作者基本信息】 中国地质大学(北京) ， 机械工程， 2012， 硕士

【摘要】 本文以西安航空发动机集团公司叶片表面处理生产线为项目背景，针对国内表面处理生产线流程监控系统自动化程度低、工作不稳定等缺点，研究开发了一套叶片电镀流程全自动监控系统，将生产线的行车、电源、阴极移动等设备整合控制，能够实时监测并控制生产线的工艺运行。通过分析系统控制要求，利用先进的控制理论，在总结同行业研究与应用的经验基础上，研制了一套合理的整体控制方案；然后对各设备的控制进行硬件设计与控制电路研制，最后进行系统的软件架构设计与程序编写，设计人机监控界面，完成工控机与现场控制层的通讯组态控制。论文的主要工作如下：（1）将现场总线控制模式与分层递阶控制理论结合，研制了一种以现场控制层、工艺层和管理层为布局结构的基本监控方案；（2）利用光纤通讯的长距离与稳定可靠性，在PPI协议通讯的基础上研制了一套基于光纤技术的通讯系统，通过光纤转换器进行信号的转换，降低了电磁干扰对信号传输的影响，能够满足表面处理车间现场苛刻的环境；（3）开发了一套基于PLC与MCGS的生产线智能运行系统，工作人员只需在中央控制间设置工艺参数、选择工艺流程即可控制整个生产线设备的运行。2011年10月本课题中的表面处理车间设备与监控系统全部投入使用。根据现场反馈的情况，本套全自动监控系统运行良好，行车、电源等设备功能可靠稳定，人机界面工人操作起来简单易懂，能够满足生产要求与控制要求。更多还原

【Abstract】 In this paper, a surface treatment production line of Xi’an Aero Engine Co. wastaken as the project background. Considering of shortcomings of poor automation andinsecurity in domestic surface treatment production line monitoring system, this paper didthe work of research and design for the automatic monitoring system. The system couldachieve the integration control demands of the vehicular, power supply and cathodemobile device in the production line, so as to monitor and control the process ofproduction.By analyzing the requirements of system and uses of advanced control theories, areasonable overall control program was developed in the paper on basis of summaries ofthe research and application experience in the industry. Then hardware structure wasdesigned and control circuits of each device were put forward. Finally the systemsoftware architecture was designed and programming was completed, with man machinemonitoring interface designed. At last the communication configuration between IPCand the the field control layer was completed. Main work of the paper is as follows:(1) A basic monitoring program consist of a field control layer, process layer, andmanagement was developed, combining filed bus control mode with hierarchical controltheory;(2) Taking advantages of long-distance, stability and reliability of fiber-opticcommunications, the paper developed a communication system based on optical fibertechnology and PPI protocol. The signal conversion is done by fiber converter technology.The communication system can reduce the impact of electromagnetic interferenceon the signal transmission, so as to meet the surface treatment of theharsh environment of the shop floor.(3) A set of intelligent operation system based on the production line of PLC andMCGS was developed. The staff simply set the process parameters in the central controlroom. Workers can control the entire production line equipment operation byselecting the process.The surface treatment plant equipment and monitoring system has been fully appliedin October2011. Site feedback shows that automatic monitoring system is running well,and vehicular, power control equipment is reliable and stable. Man-machine interface is simple to understand and able to meet production demands and control requirements forworkers to operate.更多还原