Shading control system

Abstract

The invention relates to the field of automatic production, and discloses a shading control system, which is characterized in that an NARX neural network model 1, an NARX neural network model 2 and an NARX neural network model 3 are utilized to predict the displacement error, the control quantity and the actual displacement value of a lifting frame respectively, and a dynamic recursive network of the models is established by introducing a delay module and outputting feedback through an NARX neural network; input and output vector delay feedback is introduced into network training, a new input vector is formed, good non-linear mapping ability is achieved, input data including original lifting frame displacement errors, control quantity and actual displacement values and corresponding output data after training are input, the generalization ability of the network is improved. Compared with a traditional static neural network, the single-chip microcomputer controller has better prediction precision and adaptive capacity in the prediction of the corresponding parameters of the lifting frame, and the precision, robustness and reliability of the control system are improved through the single-chip microcomputer controller.

Description

technical field [0001] The invention relates to the technical field of automatic production, in particular to a shading control system. Background technique [0002] Nowadays, most of the existing archives and scanners used for the filing of important materials are contact scanning, using a combination of rollers and conveyor belts to transport paper. Because the physical characteristics of material paper are very sensitive, part of the paper is likely to be scanned during scanning. Adsorbed to the upper platen, while other parts are spread flat on the lower transparent placement plate, resulting in uneven flatness of the paper during scanning, and the problem that some scans are clear and some scans are not clear; in addition, it may also be caused by paper crumbs obscure the paper, or the paper is curled unevenly and the scan is incomplete. [0003] In addition, in the current scanning equipment, the controller has poor control accuracy, stability, timeliness and adaptabi...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, most of the existing archives and scanners used for filing of important materials are contact scanning, using a combination of rollers and conveyor belts to transport paper, because the physical characteristics of material paper are very sensitive, and part of the paper is likely to be scanned during scanning. Adsorbed to the upper platen, while the other part is flat on the lower transparent placement plate, resulting in uneven flatness of the paper during scanning, and the problem that some scans are clear and some scans are not clear; in addition, it may also be caused by paper Incomplete scanning caused by crumbs covering the paper, or uneven curling of the paper

[0003] In addition, in the current scanning equipment, the controller has poor control accuracy, stability, timeliness and adaptability to the components during scanning, which affects the scanning effect.

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