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Engineering system workflow modeling method based on space-time Petri network

A technology of workflow and modeling method, applied in manufacturing computing systems, data processing applications, instruments, etc., can solve the problems of lack of complex object characteristics, space-time characteristics and constraint space-time characteristics of system engineering workflow

Pending Publication Date: 2022-05-20
CSSC SYST ENG RES INST
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Problems solved by technology

Existing literature and patents lack research results on complex object properties, spatio-temporal properties and constraints, task spatio-temporal properties, and operating mechanisms that conform to architectural workflows in systems engineering workflows

Method used

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  • Engineering system workflow modeling method based on space-time Petri network
  • Engineering system workflow modeling method based on space-time Petri network
  • Engineering system workflow modeling method based on space-time Petri network

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Embodiment Construction

[0087] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0088]Based on a disclosed system engineering workflow modeling method based on spatio-temporal Petri nets, the invention develops a modeling system for supporting system engineering workflow modeling. First, establish the initial time, space environment, and various objects, personnel, task signals (manual / automatic) and various material resources of the system engineering workflow; establish the basic nodes of the Petri net based on the task, including task priority, task completion time Required time, task execution time, task status, coordinate starting point at the beginning of the task, task time / space function, task trigger constraint, task execution; establish task trigger constraints including task trigger signal, task priority, required personnel, Required objects and their states, required material resources, required triggering ...

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Abstract

The invention belongs to a modeling method, and particularly relates to an engineering system workflow modeling method based on a space-time Petri network. The method comprises the following steps: (1) initializing a system engineering workflow environment which comprises initial time, a space environment, various objects, personnel, task signals and various material resources; (2) describing basic description and trigger constraints and behaviors of task nodes; and (3) establishing a space-time Petri network, and giving a basic operation rule. The method has the remarkable effects that the complexity of system structure workflow model elements is solved; interaction and operation of each element in a system engineering workflow in a space-time environment are met; and the complexity and the space-time dynamic property of task operation in the system engineering workflow are met.

Description

technical field [0001] The invention belongs to a modeling method, and in particular relates to a modeling method of engineering system workflow based on a spatio-temporal Petri net. Background technique [0002] Process design plays a very important role in system engineering. The process is the key factor for the emergence of the overall capability among the member systems of the system. The system couples the member systems through process design, and cooperates to complete tasks that cannot be completed by a single system. There is a lack of guidance on process design methods in traditional systems engineering. Petri net is a systematic tool with both mathematical analysis and graphic description. It is suitable for modeling discrete event systems with characteristics such as concurrency, mutual exclusion, and conflict, and naturally meets the requirements of process design. [0003] System engineering workflow modeling member systems are complex and have various automa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/0633G06Q10/067Y02P90/30
Inventor 张宏军黄百乔张鹏罗永亮闫丹
Owner CSSC SYST ENG RES INST
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