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Modeling method of robot forearm assembly system based on timed petri net

An assembly system and modeling method technology, applied in the direction of assembly machines, metal processing equipment, manufacturing tools, etc., can solve the problems of inability to express system time factors, poor reusability and maintainability, difficulty in model establishment and improvement, etc., to achieve Reusable, maintainable, focused effects

Active Publication Date: 2020-06-26
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the traditional Petri net is used to establish the assembly system model, due to the complex structure of the system and the strong pertinence of the model, it is very difficult to establish and improve the model
Simple Petri net cannot express the time factor of the system when building the assembly system model
When the traditional Petri net builds the assembly system model, the model hierarchy is not clear enough, and the built model has high system independence, and has the characteristics of poor reusability and maintainability.

Method used

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  • Modeling method of robot forearm assembly system based on timed petri net
  • Modeling method of robot forearm assembly system based on timed petri net
  • Modeling method of robot forearm assembly system based on timed petri net

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Embodiment Construction

[0024] A method for modeling a robotic forearm assembly system based on timed Petri nets, comprising the following steps:

[0025] The first step is to establish a process-based timed Petri net model with a top-down idea from a global perspective;

[0026] In the second step, starting from a local point of view, a timed Petri net model based on any process is established with a bottom-up idea;

[0027] The third step combines and refines the models built in the first two steps.

[0028] In the first step, from a global perspective, a process-based timed Petri net model is established with a top-down idea:

[0029] Firstly, the whole robot forearm assembly system is designed, and the detailed activity process within each process is temporarily ignored, and a process-based timed Petri net model is established by using the top-down idea. Then design the detailed activities of the specific process in the assembly line, and use the bottom-up idea to establish a timed Petri net mo...

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Abstract

The invention provides a robot forearm assembly system modeling method based on a timed Petri net. The robot forearm assembly system modeling method comprises the following steps of: step (1) buildingPetri net models of all procedures of a robot forearm assembly line; step (2) building an independent Petri net model of each procedure; and step (3) combining the Petri net models of all procedureswith the Petri net model of each procedure.

Description

technical field [0001] The invention relates to a production line construction technology, in particular to a modeling method for a robotic forearm assembly system based on timed Petri nets. Background technique [0002] When traditional Petri nets are used to build an assembly system model, it is very difficult to build and improve the model due to the complex structure of the system and the strong pertinence of the model. Simple Petri nets cannot express the time factor of the system when building an assembly system model. When traditional Petri nets are used to build an assembly system model, the model hierarchy is not clear enough, and the built model has high system independence, and has the characteristics of poor reusability and maintainability. Contents of the invention [0003] The object of the present invention is to provide a kind of robot forearm assembly system modeling method based on timed Petri net, comprising the following steps: [0004] Step 1, establ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P21/00
CPCB23P21/004
Inventor 姜明壮李东波童一飞
Owner NANJING UNIV OF SCI & TECH
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