Data-driven complex electromechanical system service quality state evaluation method

A technology for electromechanical system and state evaluation, applied in data processing applications, registering/indicating machine work, resources, etc., can solve problems such as numerous influencing factors, multiple system points and long lines, and complex coupling relationships between system service quality state monitoring variables , to achieve the effects of loose application conditions, improved capabilities and automation levels

Active Publication Date: 2017-05-17
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] From the perspective of the system, a complex electromechanical system is a distributed complex electromechanical system that has many large-scale dynamic mechanical devices coupled through multi-media networks such as energy, fluid, electricity, and control signals. Three problems: (1) The system has many points and long lines, and there are many influencing factors, and the coupling relationship between the monitoring variables of the system’s service quality status is complex, making it difficult to accurately evaluate the system’s service quality status; (2) The system’s service quality status monitoring data has very Due to the coexistence of multiple features such as linearity and non-stationarity, there is a lack of effective means to effectively distinguish different service quality states; (3) there is still a lack of mature and effective system service quality state evaluation devices and methods to evaluate the system service quality state. Comprehensive Analysis and Evaluation

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  • Data-driven complex electromechanical system service quality state evaluation method
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Embodiment Construction

[0049] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0050] see figure 1 , the present invention comprises the following steps:

[0051] 1) Historical data processing:

[0052] The historical data processing step is based on the historical data of service quality status monitoring of complex electromechanical systems and the business management data of complex electromechanical systems, training the eigenmode set of service quality status of complex electromechanical systems, extracting the characteristics of each mode, and estimating the different The probability density function of different features in the model establishes the evaluation standard for the subsequent evaluation process. The historical data processing steps are realized through the following processing links:

[0053] 1.1) Data extraction and preprocessing: extract complex electromechanical system service quality status monitorin...

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Abstract

The invention discloses a data-driven complex electromechanical system service quality state evaluation method. Taking DCS state monitoring data and system service management data reflecting the system service quality state as the basis and depending on an information fusion theory, the data-driven complex electromechanical system service quality state evaluation method can perform real-time evaluation and early warning on the complex electromechanical system service quality state of an enterprise, and can perform early warning prevention on possible accidents in advance, and can assist scientific maintenance and repairing so as to improve the safety production level of the enterprise.

Description

technical field [0001] The invention belongs to the field of service quality state monitoring and analysis of complex electromechanical systems, and relates to a system service quality state evaluation method, in particular to a data-driven complex electromechanical system service quality state evaluation method. Background technique [0002] Due to the complexity of the process and system of the process industry, people cannot accurately grasp the root cause and mechanism of accidents, accurately analyze and warn the service quality status of the production system, and cannot eliminate and prevent potential dangers through scientific maintenance. As a result, the safety production situation of enterprises cannot be effectively contained and improved, which makes it necessary and urgent to carry out research on the service quality status evaluation of complex electromechanical systems. To this end, it is necessary to conduct accurate, scientific, and comprehensive assessment...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G07C3/00
CPCG06Q10/06313G06Q10/0635G07C3/005
Inventor 王荣喜高建民高智勇姜洪权
Owner XI AN JIAOTONG UNIV
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