Processing course state evaluation method based on processing course state entropy dynamic calculation
A technology of processing process and processing state, which is applied in the direction of calculation, instrumentation, and data processing applications, etc., can solve problems such as difficult product quality assurance, difficult description of processing state, and inability to dynamically analyze and identify product processing processes.
Active Publication Date: 2017-10-13
XI AN JIAOTONG UNIV
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Problems solved by technology
[0003] At present, neither the traditional quality control using SPC control chart nor the process quality control method based on process error can dynamically analyze and identify the product processing process, and it is difficult to identify and control the key processing states that affect quality during the processing process. Difficult to guarantee the quality of the final product
Aiming at the problems that the processing state is difficult to describe and the processing quality is difficult to control in the product processing process, there is an urgent need for a processing process control method that can fully demonstrate the characteristics of the processing state and the coupling between processing states, and dynamically calculate the processing state in the product processing process The entropy value and the evaluation of the processing state provide theoretical guidance for timely feedback and adjustment measures, which is helpful to improve the processing quality of products
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[0046] The present invention will be further described below in conjunction with the accompanying drawings and examples.
[0047] Such as figure 1 As shown, a processing state evaluation method based on the dynamic calculation of processing state entropy includes the following parts: product processing state description, processing coupling network model construction, processing state information entropy and network structure entropy calculation, product processing state evaluation .
[0048] In order to realize the description and evaluation of the product processing state, first describe the product processing state, the processing state refers to a multi-dimensional parameter space; use the network theory to establish the processing network model, and regard the factors affecting product quality characteristics as the processing state network Nodes in the process; use sensors to collect data in the process of processing in real time, and update the processing status networ...
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The invention discloses a processing course state evaluation method based on processing course state entropy dynamic calculation. The method comprises the following steps that (1) product processing course state description: the product processing state is described according to the characteristics of the product processing course; (2) establishment of the processing state network and calculation of the product processing state entropy: the product processing state network is established and the quality characteristic influence factors in the processing course are dynamically acquired by using the process parameter sensor in product processing, and the entropy of each state in the processing course is calculated according to the network; and (3) evaluation of the product processing state: the processing state is evaluated according to the entropy fluctuation size calculated in the product processing course. The processing state of the product is described and the performance of the product processing state network is analyzed, and the information entropy and the network structure entropy of the processing state network are dynamically calculated to evaluate the product processing state so as to provide theoretical guidance for subsequent feedback adjustment measures.
Description
technical field [0001] The invention belongs to the field of dynamic quality control of the processing process, and relates to a processing state evaluation method based on the dynamic calculation of the processing state entropy. Background technique [0002] In the process of product processing, it is of great practical significance to realize the quality control and improvement of the processing process to improve product quality, reduce waste loss, and enhance the market competitiveness of enterprises. Product processing is a process with complex process, many processing states, and long production cycle. There are many influencing factors from human-machine-environment and other aspects, and there are mutual coupling relationships between them. Therefore, how to realize the control of product processing state Description, the calculation of the state entropy of the processing process and the evaluation of the processing state are the key issues to be solved to improve th...
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IPC IPC(8): G06Q10/06
CPCG06Q10/06393
Inventor 赵丽萍李博豪胡胜要义勇
Owner XI AN JIAOTONG UNIV