SOE (sequence of event) parameter change analysis method and device

An analysis method and parameter technology, applied in the field of SOE parameter abnormality analysis method and device, can solve problems such as wrong control operation and SOE parameter action error

Active Publication Date: 2017-05-31
HANGZHOU HOLLYSYS AUTOMATION
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for analysis of SOE parameter abnormality, so as to solve the problem in the prior art that the

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  • SOE (sequence of event) parameter change analysis method and device
  • SOE (sequence of event) parameter change analysis method and device
  • SOE (sequence of event) parameter change analysis method and device

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] see figure 1 , which shows a flow chart of a SOE parameter abnormality analysis method provided by an embodiment of the present invention, which may include the following steps:

[0045] S11: Predetermine the SOE parameters of the specified equipment as main variables and subvariables associated with each main variable.

[0046]Specified equipment can specifically be any equipment that needs to be monitored for its safety. For example, in the backgroun...

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Abstract

The invention discloses an SOE (sequence of event) parameter change analysis method and device; the method comprises: predetermining SOE parameters of a specified device as main variables, and a sub-variable associated with each main variable; acquiring, in real time, state of each main variable and that of the corresponding sub-variable, and upon the determination that any main variable changes based on the current-moment state of the main variable, determining the main variable as an action main variable; based on association of the action main variable and each corresponding sub-variable, judging whether the current-moment state of the sub-variable matches with the current-moment state of the action main variable or not; if yes, determining that action of the action main variable is correct; if not, determining that the action of the action main variable is faulty. Therefore, whether the action of the action main variable is correct or not is determined based on each sub-variable associated with the action main variable, and it is avoided that action error of a main variable caused by its value measurement error leads to corresponding control operation error.

Description

technical field [0001] The present invention relates to the technical field of equipment safety control, and more specifically, to a method and device for analyzing SOE parameter abnormality. Background technique [0002] For the safety interlock action of functional safety equipment, currently only SOE (Sequence Of Event, sequence of events recording system) acquires and records information on changes in switching quantities (DI / DO) related to production safety with a time resolution of milliseconds. Systematic monitoring, control and post-event analysis, and research on the causes of various accidents provide a strong basis. [0003] Specifically, SOE has corresponding SOE parameters. SOE parameters include key variables that control the safety of specified equipment, such as equipment pressure, temperature, and liquid level. When it is determined that the SOE parameter takes action, and then based on the action, the functional safety device implements the corresponding c...

Claims

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Application Information

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IPC IPC(8): G05B23/00
CPCG05B23/00
Inventor 师平安尚平范怿涛兰文华牛淑艳李鹏涛高金宇
Owner HANGZHOU HOLLYSYS AUTOMATION
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