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

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...

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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 Uniformly express the hierarchical structure of the system, and give a clear graphical and formal definition, so as to establish the logical model of the discrete manufacturing system, which is convenient for further unified system establishment of the discrete manufacturing system model and later use

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