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Hybrid control method based on Petri network

A control method and controller technology, applied in the directions of adaptive control, general control system, control/regulation system, etc., can solve problems such as difficulty in understanding and analysis, difficulty in connecting models well, increasing difficulty in analysis and design, etc. Easy to integrate effects

Active Publication Date: 2019-01-15
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the models at each level are different, and it is a multi-model integrated system, which has many difficulties in understanding and analysis, especially the difficulty of connecting the models well, which increases the difficulty of analysis and design

Method used

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  • Hybrid control method based on Petri network
  • Hybrid control method based on Petri network
  • Hybrid control method based on Petri network

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Embodiment Construction

[0027] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation of the hybrid control method based on the generalized synchronous automatic control network system proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. illustrate. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0028] In order to set forth the specific content of the present invention, it is necessary to provide the following basic concepts:

[0029] 1. Generalized automatic control network system

[0030] Use ∑ to represent the generalized automatic control network system as follows:

[0031] ∑=(S, T; F, K, W, M 0 )

[0032] in:

[0033] 1) S is a place set;

[0034...

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Abstract

The invention provides a hybrid control method based on Petri network, which is characterized in that a Petri network based controller and an industrial computer are used. The controller comprises a monitor and a digital controller, and is used for monitoring the state variable or the output quantity of a controlled object and determining a working mode according to a set control strategy. The industrial computer is connected with the controlled object to realize the data collection of the controlled object and convert the control quantity sent by the controller into specific control data of the controlled object. The hybrid control method comprises: step 1: establishing a generalized synchronous self-controlled network system model of the monitor part in the controller; step 2: establishing a generalized synchronous self-controlled network system model of the digital controller part in the controller; step 3: establishing a complete controller model; step 4: using the industrial computer to perform the data collection and control on the controlled object. The hybrid control method based on Petri network completes the unified Petri network modeling of the monitor and the digital controller, and is easy to integrate with other intelligent control methods.

Description

technical field [0001] The invention belongs to the technical field of automatic control, relates to a Petri net controller, in particular to a Petri net-based hybrid control method. Background technique [0002] A hybrid control system means that its controlled object or controller contains a discrete model, which is used together with a continuous model to determine the performance of the system. The design goal of hybrid control system is to design a hybrid controller that satisfies control performance and stability. The general hybrid controller modeling adopts heterogeneous modeling technology, which has a hierarchical structure, which is composed of three parts: event-driven discrete operating mechanism, continuous variable controlled process and conversion interface between the two. a unity. The multi-layer structure is closer to most of the actual complex systems, so people pay attention to it. However, the models at different levels are different, and it is a mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 万军严转红
Owner CHANGZHOU UNIV
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