基于RFID技术的制冷设备分级维护系统设计与实现

发布时间：2018-05-30 03:29

本文选题：制冷设备维护 + 分级维护　；参考：《华中科技大学》2014年硕士论文

【摘要】：随着制造环境的全球化，中国制造的制冷设备已占全球产能的一半以上，这对设备维护提出了严重考验。目前制冷设备的维护模式主要采用现场维护和远程维护两种：现场维护模式在宽地域情况下会导致极大的人力物力浪费，维护资源与维护效率受到严重制约；远程维护模式对应用环境的适应能力不足，难以支持设备维护的全过程，缺乏对企业经营与管理层面的融合。而分级维护模式综合考虑用户、经销商、生产商，对维护进行递增分级，实现维护资源的合理分工，在提高维护效率的同时有效降低了维护成本。本文针对中山美科冷冻设备有限公司制冷类设备售后服务需求，设计了一套基于RFID（Radio Frequency Identification，无线射频识别）技术的分级维护系统。主要工作包括：利用故障树与故障模式及影响分析法FMEA（Failure Mode and Effect Analysis）对单温冷柜进行分析，并采用功能法与硬件法相结合的方式将单温冷柜分制冷、化霜、照明、人机界面、除雾五个功能建立故障树模型与FMEA表格。分析了在线诊断点系统、离线诊断站系统、智能维护中心系统的结构与功能：在线诊断点采用多传感器技术监测设备状态，实现预警性故障诊断；离线诊断站依托FMEA表，实现停机性故障诊断；智能维护中心实现设备的智能生产管理与产品优化升级。完成了系统的软、硬件原型实现与测试。软件系统运行正常，RFID模块读写距离与方向性均能满足实际需求。系统已通过了中山美科冷冻设备有限公司现场测试并已试用，，测试表明该系统可以极大提高维护效率，降低维护成本，实现产品维护全闭环控制。
[Abstract]:With the globalization of manufacturing environment, the refrigeration equipment made in China accounts for more than half of the global capacity, which poses a serious test for equipment maintenance. At present, the maintenance mode of refrigeration equipment mainly adopts field maintenance and remote maintenance. The field maintenance mode will lead to a great waste of manpower and material resources in a wide geographical area, and the maintenance resources and maintenance efficiency will be severely restricted; The remote maintenance mode has insufficient adaptability to the application environment, it is difficult to support the whole process of equipment maintenance, and lacks the integration of enterprise management and management. The hierarchical maintenance model considers the users, dealers and manufacturers, and classifies the maintenance gradually, realizes the reasonable division of maintenance resources, and effectively reduces the maintenance cost while improving the maintenance efficiency. In order to meet the requirement of after-sales service of refrigeration equipment in Zhongshan Meike Refrigeration equipment Co., Ltd, this paper designs a hierarchical maintenance system based on RFID(Radio Frequency Identification (Radio Frequency Identification) technology. The main tasks include: The single temperature freezer is analyzed by fault tree, fault mode and influence analysis method (FMEA(Failure Mode and Effect Analysis). The single temperature freezer is divided into refrigeration, defrosting, lighting and man-machine interface by the combination of function method and hardware method. Five functions of defog are used to build fault tree model and FMEA table. The structure and function of on-line diagnosis point system, off-line diagnosis station system and intelligent maintenance center system are analyzed. The on-line diagnosis point uses multi-sensor technology to monitor the state of the equipment to realize early warning fault diagnosis, and the off-line diagnosis station relies on FMEA table. The intelligent maintenance center realizes intelligent production management and product optimization and upgrading. The software and hardware prototype of the system is implemented and tested. The reading and writing distance and directivity of RFID module can meet the actual demand. The system has passed the field test of Zhongshan Micco Refrigeration equipment Co., Ltd. and has been tested. The test shows that the system can greatly improve the maintenance efficiency, reduce the maintenance cost and realize the complete closed-loop control of product maintenance.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB657

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