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Discrete event system monitor on basis of event control function and control method thereof

A technology of event control and controller, applied in the direction of electric controllers, controllers with discontinuous output signals, etc., can solve the problem that the supervisory controller of the automaton model is difficult to be realized, and achieve the effect of avoiding the problem of explosive growth

Inactive Publication Date: 2012-12-12
XI AN JIAOTONG UNIV
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  • Claims
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Problems solved by technology

Therefore, for large-scale systems (referring to the scale of system state numbers), it is difficult to implement a supervisory controller based on the automaton model

Method used

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  • Discrete event system monitor on basis of event control function and control method thereof
  • Discrete event system monitor on basis of event control function and control method thereof
  • Discrete event system monitor on basis of event control function and control method thereof

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0054] A discrete event system monitor based on event control function and its control method. The structure of the monitor and the specific implementation process of the control method are described in detail below.

[0055] First, the structure of the discrete event system monitor based on the event control function proposed by the present invention will be described in detail. Such as figure 1 as shown, figure 1 The control device in is a structural schematic diagram of the monitor involved in the invention. It includes: system state tracking unit, control unit 1 ~ control unit n, management unit, event selection unit. figure 2 Shown is a schematic structural diagram of the system state tracking unit, which includes: an event receiving unit, a state memory unit, an abstract model of component 1 to an abstract model of component k, and a state combination unit...

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Abstract

The invention relates to a discrete event system monitoring controller on the basis of an event control function and a control method thereof. The discrete event system monitoring controller comprises a control device; the control device comprises a plurality of control units, a management unit, an even selection unit and a system state tracking unit; the system state tracking unit is used for combining a state of an integral system at the current moment and outputting the state to each control unit and the management unit; each control unit has a function of ensuring the controlled system to meet the requirements on control indexes; the management unit is used for managing each control unit and coordinating an output of each control unit; and control and management signals are output to the event selection unit by the control units and the management units and an enabled even is selected by the even selection unit according to the control and management signals and is output to the system so as to complete controlling the controlled system. According to the invention, the problem of explosive increase of the state of the controller can be effectively avoided; the control problem of one type of discrete event system is solved; and the operation characteristics of a closed-loop system is ensured to meet the requirements on the control indexes and is ensured non-blocking.

Description

Technical field: [0001] The invention belongs to the control field of discrete event systems, in particular to a supervisory control method of discrete event systems. Background technique: [0002] With the development of computer science, communication and sensor technology, more and more discrete event systems represented by flexible manufacturing systems have emerged in industrial production and daily life, such as computer and communication networks, traffic control systems, highly centralized command, Control, communication and information systems, advanced monitoring systems in vehicles and large buildings, intelligent transportation systems, distributed software systems, and more. The behavior of these systems is governed by operating rules formulated by humans. In the past supervisory control methods, the model of the discrete event system, the control index of the system and the design of the supervisory controller of the system are based on the finite state automa...

Claims

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Application Information

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IPC IPC(8): G05B11/14
Inventor 甘永梅晁武杰张仁远焦亭
Owner XI AN JIAOTONG UNIV
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