State space-based multi-featured device state evaluation method and application

A state space and equipment state technology, applied in special data processing applications, mechanical equipment, instruments, etc., can solve problems such as high integration, complex operating principles, wrong or missed judgments, etc., to achieve strong practicability, reasonable design, The effect of effective technical support

Inactive Publication Date: 2011-07-27
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

However, in the actual process, due to the high integration of most of the equipment and the complex operation principle, it is often difficult to represent the factors affecting the equipment status with the index value or logical relationship of a single feature, and the complex relationship between the status features is a nonlinear relationship.

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  • State space-based multi-featured device state evaluation method and application
  • State space-based multi-featured device state evaluation method and application
  • State space-based multi-featured device state evaluation method and application

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Embodiment Construction

[0016] The purpose of the present invention is to provide a multi-feature equipment state evaluation method based on state space, including the establishment of a benchmark state comment set, the establishment of an expert database, the optimal selection and standardization of the collected state characteristic parameters, and the establishment of state space. Affinity calculation, calculate the affinity between the equipment free state space and the reference state space, apply the affinity calculation model, and finally use the space affinity index to perform state matching, and determine the equipment state evaluation result from the benchmark state comment set; select below The shaft system of a steam turbine in industrial production is the object of the application description of the present invention. It should be pointed out that the given examples are for illustration rather than limiting the scope of the present invention.

[0017] According to attached figure 1 The p...

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Abstract

The invention discloses a state space-based multi-featured device state evaluation method and application, belonging to the technical field of device state monitoring. The method comprises the following steps: a marker post state comment set building link provides an evaluation output range; an optimized selection and standardization link for feature parameters provides standardization input; a state space building link provides a state representation mode; a space affiliation calculating link provides state evaluation indexes; and a state matching link provides the final output conclusion. In the invention, the research thinking on multi-featured device state evaluation is expanded, the traditional linear distortion phenomenon caused by direct linear superposition of multi-featured utility values can be solved, the formulation of state grading standard is enriched, contribution degree of all feature elements to the state evaluation result can be quantized, a scientific method for improving the state monitoring and analysis level of complex equipment is improved, labor cost is reduced and enterprise benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of equipment status monitoring. In particular, it relates to a multi-feature equipment state evaluation method and application based on state space. In particular, it relates to the state recognition, diagnosis and evaluation technology of complex equipment with multi-feature attribute conditions. Background technique [0002] Since the 20th century, with the rapid development of industrial production and science and technology, the structure of equipment used to dominate the production and living process has become increasingly complex, and the status of equipment has become more and more variable and complex. In order to ensure the normal service operation of the equipment, people need to scientifically and accurately grasp the operating status of the identification equipment, and carry out targeted maintenance and management of the equipment according to the status. [0003] At present, with the develop...

Claims

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Application Information

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IPC IPC(8): G06F19/00F01D25/00F16C3/02
Inventor 顾煜炯陈昆亮
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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