A Robust Control Method for Automatic Manufacturing System Existing Uncontrollable Behavior

A technology of automatic manufacturing system and control method, applied in the direction of general control system, control/regulation system, adaptive control, etc., can solve the problems that existing solutions cannot give objective judgments, etc., to ensure efficient and safe progress, and improve robustness sexual effect

Active Publication Date: 2021-05-11
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For the above system, J 1 Process and J 3 The processes have not moved one step forward in their respective processing paths, and at this time there is And for the J of the processing path 2 The process has reached the third step of the process; that is, but at the moment J 1 Process and J 3 The processes are all in the initial state and all meet the processing conditions. The existing scheme cannot give an objective judgment on which process to launch.

Method used

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  • A Robust Control Method for Automatic Manufacturing System Existing Uncontrollable Behavior
  • A Robust Control Method for Automatic Manufacturing System Existing Uncontrollable Behavior
  • A Robust Control Method for Automatic Manufacturing System Existing Uncontrollable Behavior

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] The present invention utilizes petri net (petri net is a kind of formalized modeling tool, can visually express the relationship such as operation, synchronization, concurrency and conflict of various system processes); For the existence of uncontrollable behavior in the manufacturing system, flexible path selection is carried out, improving The robustness of the manufacturing system, which ensures the efficient and safe processing of the machining process, is an optimal control strategy with practical application significance.

[0037] A robust control method for an automatic manufacturing system with uncontrollable behavior, comprising the following steps:

[0038] 1) initialization, t en ≠φ,t rb = φ,t en is the set of enabled transitions, t rb is a robust transition set of automatic manufacturing system;

[0039] 2) Collect the state M under the initia...

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Abstract

A robust control method for automatic manufacturing systems with uncontrollable behaviors, which considers uncontrollable behaviors and unreliable resources at the same time, performs reasonable path planning, and effectively avoids, even if there are unpredictable unreliable resources, it can also be passed The flexible selection of the processing process makes the processing process run efficiently and safely. Moreover, the present invention avoids the fault-aware control of offline calculation of global information by calculating the number of resources online in real time. transition set, and then carry out reasonable path planning for the transition, comprehensively consider uncontrollable transition and unreliable resources, improve the robustness of the automatic manufacturing system, and obtain a group of robust transition sets under the current state; The control behavior is used to select flexible paths, improve the robustness of the manufacturing system, and ensure the efficient and safe processing of the process.

Description

technical field [0001] The invention belongs to the technical field of automatic manufacturing systems, and relates to a robust control method for automatic manufacturing systems with uncontrollable behaviors. Background technique [0002] The automatic manufacturing system refers to the process of processing raw materials into parts or assembling parts into products under the direct or indirect intervention of fewer people, and realizes the automation of management process and process in the process of processing. The management process includes product optimization design; programming and process generation; equipment organization and coordination; material planning and distribution; Monitoring measures will cause the workpiece process to be blocked due to unforeseen resource failures. In the actual system, only one resource failure may cause the system to fall into the prohibited state. The emergence of the prohibited state will not only reduce the efficiency of the syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 樊一宏胡核算王升升
Owner XIDIAN UNIV
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