Method for establishing a discrete manufacturing system local model through adoption of septet and service unit

A service unit and logic model technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of model reusability and poor configurability, improve model reusability, and reduce modeling complexity. The effect of increasing the speed of modeling

Active Publication Date: 2019-03-01
SOUTHWEST JIAOTONG UNIV +1
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Problems solved by technology

[0005] Aiming at the problems of poor reusability and configurability of existing discrete manufacturing system composition and structure modeling models, the present invention proposes to use "septuples" to uniformly express system composition and basic elements, and proposes to use "service units" to

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  • Method for establishing a discrete manufacturing system local model through adoption of septet and service unit
  • Method for establishing a discrete manufacturing system local model through adoption of septet and service unit
  • Method for establishing a discrete manufacturing system local model through adoption of septet and service unit

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Embodiment Construction

[0044] The present invention is described in detail below in conjunction with accompanying drawing:

[0045] The invention provides a method for establishing a discrete manufacturing system logic model by utilizing seven-tuples and service units, figure 1 is a flowchart of the method. First, the discrete manufacturing system is composed according to the specific role of each object in the system, and it is mapped to a seven-tuple, and its algebraic specification is Seven Component= including control Devices, processors, executors, buffers, flow entities, logistics paths, and virtual service nodes. Specific graphical and algebraic modeling specifications for seven-tuples are figure 2 shown.

[0046] The production activities are abstracted as "services", including caching services and processing services. The processing here is a broad processing, involving all activities related to the production process, such as mechanical processing, assembly, testing, packaging, etc. U...

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Abstract

The present invention discloses a method for establishing a discrete manufacturing system local model through adoption of septet and a service unit. The method comprises the steps of: 1. performing object function mapping, mapping the discrete manufacturing system composition to a septet according to the roles of each object served as in the system, wherein the septet comprises a controller, a processor, an executer, a cache, a flow entity, a logistical path and a virtual service node; 2. employing the septet or a sub set thereof, employing the virtual service node to associate a system to generate a service unit; 3. Allowing the flow entity to access the service unit through the virtual service node, under the assistance of the executer, allowing the flow entity to flow in order accordingto the sequence of the input cache, the processor or the cache and the output cache to finally leave through the virtual service node to generate service logic; and 4. generating the discrete manufacturing system logic model. The concept of the septet and the service unit is suitable for uniform modeling of various complex discrete manufacturing systems, and has universality, uniformity and the systematicness.

Description

technical field [0001] The invention relates to the technical field of discrete manufacturing system modeling and simulation, in particular to a logical model modeling method composed of complex discrete manufacturing systems. Background technique [0002] The manufacturing mode has changed from mass production to "multi-variety and small-batch" mass customization production. In particular, the discrete manufacturing system represented by the manufacture of complex aerospace structural parts presents a high degree of complexity in system composition and organizational structure. Discrete manufacturing enterprises There is an urgent need for a systematic modeling theory and method to quickly design and analyze discrete manufacturing systems to meet individual and customized market needs. [0003] Generally, from the perspective of physical space, discrete manufacturing systems can be divided into personnel, hardware and software (or expressed as people, things and information...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 丁国富江海凡付建林邹益胜张剑丁国华
Owner SOUTHWEST JIAOTONG UNIV
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