物聯(lián)網(wǎng)環(huán)境下的復(fù)雜裝備閉環(huán)MRO服務(wù)研究與應(yīng)用
[Abstract]:With the improvement of productivity and the progress of technology, the products tend to homogenize more and more, and the competition of manufacturing industry becomes more and more fierce. The service transformation has become a trend and tide. MRO (maintenance repair and overhaul) service is the maintenance, maintenance and overhaul of the mid-life cycle of the product. There are close data and information relationships between MRO services and other phases of the lifecycle, as well as between the sub-services of MRO services. In recent years, the Internet of things related technologies have been rapidly developed, which provides a technical basis for the sharing of service data and information. Aiming at the problems of insufficient business connection and inconsistent data in complex equipment MRO service, combined with the technology of Internet of things, this paper applies the closed-loop management idea to MRO service of complex equipment. This paper presents the closed loop MRO service principle and framework of complex equipment under the environment of the Internet of things, establishes the corresponding business model and data model, and takes the vertical mill equipment of CITIC heavy Industry Machinery Co., Ltd as a case for theoretical application and system development. The first chapter introduces the research background and significance of the paper, analyzes the domestic and foreign research status in related fields, summarizes the shortcomings of the existing research, and puts forward the research content and structure of this paper. In chapter 2, the principle and framework of closed-loop MRO service for complex equipment in Internet of things environment are studied. Firstly, the characteristics of MRO service of complex equipment are summarized and analyzed, then the closed-loop principle of MRO service of complex equipment is discussed, and then the Internet of things architecture of closed-loop MRO service of complex equipment is analyzed. Finally, a closed-loop MRO service system for complex equipment in the Internet of things environment is proposed. In chapter 3, closed-loop MRO service modeling of complex equipment is studied. Firstly, the general service model of complex equipment closed-loop MRO service is established, which is composed of external close-loop service model and internal close-loop service model. Then, four core sub-business processes of MRO service requirement management, MRO service planning and execution of MRO service summary, are studied, and the corresponding sub-service model is established. In chapter 4, closed-loop MRO service data modeling of complex equipment is studied. Firstly, the characteristics of complex equipment service BOM are analyzed, and the composite service BOM structure is designed according to these characteristics. The design requirements, design principles and construction process of the structure are studied emphatically. Then, the consistency requirements of closed loop MRO service data for complex equipment are analyzed. Then, aiming at the inconsistency of service data among different service agents, a closed loop MRO service data connection model for complex equipment is proposed, and the principle of the model is expounded. Finally, the related objects in the service business data association model are divided into structured data objects, metadata objects and contact objects. The description of these objects is given in detail, and the service business data association model is established through these objects. The fifth chapter takes the vertical mill equipment of CITIC heavy Industry Machinery Co., Ltd. as an example, discusses the current service mode and the problems existing in the service system, carries on the overall design of the closed-loop MRO service system under the environment of the Internet of things. Model building and software implementation verify the theoretical research results of this paper. The sixth chapter summarizes the research work of this paper, summarizes the research results of this paper, and prospects the future research work.
【學(xué)位授予單位】:浙江大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TH17;TP391.44;TN929.5
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