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A Method of Controller Structure Simplification and Behavior Optimization Based on Safety Net

A technology that simplifies the structure and optimizes the method. It is applied in the direction of adaptive control, general control system, control/regulation system, etc. It can solve the problems of reduced system resource utilization, many reachable states, and inability to retain, and achieve state retention. High, system behavior optimization, to achieve the effect of structure simplification

Active Publication Date: 2021-09-24
XIDIAN UNIV
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Problems solved by technology

[0005] To sum up, the problem with the existing technology is that the existing technology often sacrifices the reachable state in the system, so that the designed controller is not the maximum allowable, that is, the system cannot retain the state after adding a monitor. The most reachable states reduce the resource utilization of the system

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  • A Method of Controller Structure Simplification and Behavior Optimization Based on Safety Net
  • A Method of Controller Structure Simplification and Behavior Optimization Based on Safety Net
  • A Method of Controller Structure Simplification and Behavior Optimization Based on Safety Net

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Embodiment Construction

[0095] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0096] In order to solve the problem that the existing controller simplification algorithm will sacrifice the system state, the present invention provides a method for simplifying the controller structure and behavior optimization based on the safety net, using the Petri net as a research tool, and considering deadlock on the basis of When the system wants to achieve the maximum permissible behavior as much as possible, the supervisory control strategy will ensure that the structural complexity of the controller is greatly reduced without sacrificing the state of the system, and can utilize resources efficiently.

[0097] T...

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Abstract

The invention belongs to the technical field of automatic manufacturing system control, discloses a controller structure simplification and behavior optimization method based on a safety net; utilizes a constraint independence analysis algorithm to simplify inequalities for the first time; proposes a constraint transformation theorem, and uses branch and bound based on the theorem The equivalence decomposition of inequalities is realized by using the method; combined with the constraint independence analysis algorithm and the constraint equivalence decomposition algorithm, the inequalities obtained by the first simplification are simplified again. The model conversion algorithm proposed by the invention is not only applicable to bounded S 4 The R net model is also applicable to some bounded Petri net models. Compared with the original controller simplification algorithm, the method proposed by the invention can not only simplify the structure of the controller, but also ensure the highest state retention of the controlled system, optimize the system behavior, and improve resource utilization.

Description

technical field [0001] The invention belongs to the technical field of automatic manufacturing system control, in particular to a method for simplifying the structure and optimizing the behavior of a controller based on a safety net. Background technique [0002] With the vigorous development of the manufacturing industry and the improvement of the level of automation technology, the manufacturing and processing technology is constantly innovating and upgrading to adapt to and meet the increasingly competitive market and more diverse and personalized product needs. The traditional batch manufacturing system is gradually eliminated, and the Automated Manufacturing System (AMS) emerges as the times require. A huge automatic manufacturing system usually consists of many interacting and influencing processing processes or NC subsystems. The NC subsystems often share some limited system resources, so the automatic manufacturing system can be considered as a resource allocation sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 乔雪松胡核算
Owner XIDIAN UNIV
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