A prediction-reactive scheduling method for complex structural parts machining workshop
A technology of processing workshop and complex structure, applied in the direction of comprehensive factory control, comprehensive factory control, control/regulation system, etc., it can solve the problem that the scheduling method cannot be effectively dealt with, and achieve the stability, improve performance, and reduce the frequency and frequency. Effect
Active Publication Date: 2022-07-15
DONGHUA UNIV
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[0005] The technical problem to be solved by the present invention is how to implement a predictive-reactive scheduling method for complex structural parts processing workshops to solve the technical problem that the existing scheduling methods cannot effectively deal with the impact of different types of disturbance events in the production process
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[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0025] like figure 1 As shown, it is a flowchart of a prediction-reactive scheduling method for a complex structural parts processing workshop provided by the present invention, including the following steps:
[0026] (1) Obtain information about workshop scheduling and generate a pre-scheduling plan;
[0027] (2) During the execution of the pre-scheduling scheme, if a disturbance event occurs, ma...
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The invention discloses a predictive-reactive scheduling method for a processing workshop of complex structural parts. The method includes: acquiring data about workshop equipment, processing tasks and process information, and generating a pre-scheduling scheme under initial conditions; when a disturbance event occurs , based on the designed relative performance deviation index to evaluate the impact of disturbance events on the pre-scheduling scheme, and select the corresponding response strategy from immediate rescheduling, delayed rescheduling and ignoring the impact according to different impact levels; if immediate rescheduling is selected , then directly enter the rescheduling method selection module. If delayed rescheduling is selected, the rescheduling time is determined according to the hybrid trigger mechanism. If the impact is ignored, the pre-scheduling scheme continues to be executed; in the rescheduling method selection, the system state when the disturbance occurs is updated. , input it into the random forest model to select the rescheduling method, and update the scheduling plan according to the selection result until all tasks are processed.
Description
technical field [0001] The invention relates to a prediction-reaction scheduling method for a processing workshop of complex structural parts, belonging to the field of workshop scheduling. Background technique [0002] Structural parts are the core components of all kinds of complex electromechanical products, which widely exist in the manufacturing process of aviation, aerospace, automobile and other products. At present, the production scheduling of complex structural parts processing workshop mainly relies on the experience of the scheduling personnel to manage the production process. However, the production process of structural parts usually faces various types of production disturbances, such as co-production of batch products and research and development products, and development tasks occur irregularly, often resulting in emergency insertion. At the same time, the immature process of research and development products will lead to dynamic changes in processing time,...
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IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 张洁潘新郑鹏吕佑龙张朋
Owner DONGHUA UNIV