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Self-adaptive construction method and operation method of control system for decoupled process flow

A technology of process flow and control system, applied in the field of process control system, to achieve the effect of rich logic forms, high composability and long development cycle

Active Publication Date: 2022-03-15
CHONGQING UNIV
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Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a method for constructing an adaptive control system for decoupling technological processes, which solves the technical problem of needing to write control programs in a targeted manner according to the steps of different technological processes

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  • Self-adaptive construction method and operation method of control system for decoupled process flow
  • Self-adaptive construction method and operation method of control system for decoupled process flow

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] A control system adaptive construction method for decoupling process flow, comprising the following steps:

[0031] An abstract description of the commonality of process flow control logic is described as a logic network:

[0032] 1) Describe the input of the control logic as a condition: the variable data, operators and operands form a conditional rule, and when the operation result between the variable data and the operand satisfies the condition and becomes a rule, the condition is established.

[0033] Rules can be static, that is, to compare and limit the data value at a certain moment, such as data greater than or less than a certain number; rules can be dynamic, that is, to restrict and limit the time series changes of data values, such as data rising several times in a row .

[0034] The basic description syntax of t...

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Abstract

The invention relates to the technical field of process control systems, and discloses a self-adaptive construction method and operation method of a control system for decoupling process flows, and abstracts the commonality of process flow control logic as a logic network description. Describe the input of the control logic as a condition: describe the intermediate operation layer of the control logic as a condition set; describe the output of the control logic as an event: the event is used to control the action of the controlled device, and the occurrence of an event is determined by a dependent condition set Drive, match the corresponding condition set for each event as a dependent condition set; according to the logical network description, use the object-oriented programming method to create objects according to the logical network description and establish network connections between objects, so as to build a control system. The invention solves the technical problem that the control program needs to be programmed according to the steps of different technological processes, and the conditions, condition sets and events are highly combinable, and the logic forms that can be realized are rich, without relying on professional programming skills.

Description

technical field [0001] The invention relates to the technical field of process control systems. Background technique [0002] In the traditional process control system, the process flow and control software are tightly coupled, and developers write programs to run on the controller according to the control logic of the process system. But the process control logic is various, there is no common program framework, and changing the process usually means updating the software, which causes difficulties in development and maintenance for program design engineers: (1) Different process logics need to design different programs; The designed program structure is not uniform, the process is inconsistent, and the program reusability is poor. (2) Logical loopholes are likely to appear in programs that do not use a common method, and the realized logic is different from the design expectation. (3) When the logic needs to be upgraded and changed, due to the high coupling degree of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/41885G05B2219/32339Y02P90/02
Inventor 毛玉星熊雄韦博陈学硕徐宜航李思谋李丹阳李晋森
Owner CHONGQING UNIV
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