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Method, system and processor for power automation task scheduling and trigger mechanism

A technology of power automation and task scheduling, applied in the direction of program startup/switching, multi-program device, etc., can solve problems such as lack of scalability, low real-time performance, and timing disorder, achieve flexible trigger action characteristics, solve timing disorder, The effect of improving execution efficiency

Active Publication Date: 2018-08-17
NR ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional implementation of protection measurement and control task scheduling and trigger mechanism is as follows: figure 1 As shown, the circular scanning method is adopted without a task scheduling mechanism, and the real-time performance is not high and the efficiency is low; it does not distinguish between real variables and virtual variables, resulting in timing disorder; there is no action trigger feature, only some features such as interlocking are realized, and there is no Scalability

Method used

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  • Method, system and processor for power automation task scheduling and trigger mechanism
  • Method, system and processor for power automation task scheduling and trigger mechanism

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Embodiment approach

[0038] The specific implementation method of the present invention will be described below with a specific task scheduling and triggering method. data flow see figure 2 , the specific implementation methods include:

[0039] 1. Syntax scanning:

[0040] (1) The operating system side loads the file into the shared memory, and the processor side reads the configuration information from the shared memory;

[0041] (2) Verify the file CRC, if the verification is inconsistent, the device will fail to start;

[0042] (3) Create summary table items, input table items, output table items, and formula table items in sequence;

[0043] (4) Establish the relationship between input, output, and formula, and generate an expression tree based on parent-child sibling nodes;

[0044] 2. Task scheduling:

[0045] (1) If the high-priority queue task has not been executed in the last interrupt, continue to execute the high-priority task. If the continuous execution time of the high-priori...

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Abstract

The invention discloses a power automation task scheduling and triggering method, system and processor. The method includes the steps: the processor scans input information and divides tasks expressed by the input information to at least one queue according to attributes of the tasks; according to an arrangement sequence of the tasks in the queues, the processor sends out an actuating signal to trigger execution of the tasks in the queues. The method has the advantages that programmable logical performance of an embedded system can be improved, uniformity of time series can be ensured and actions can be flexible configured.

Description

technical field [0001] The invention belongs to the field of electric power automation, in particular to an electric power automation task scheduling and triggering technology. Background technique [0002] In recent years, power grid construction is facing unprecedented growth, which drives the rapid growth of secondary equipment in the power system. The wide application of microcomputer protection measurement and control devices also puts forward more extensive and flexible requirements for task scheduling and triggering mechanisms. The traditional implementation of protection measurement and control task scheduling and trigger mechanism is as follows: figure 1 As shown, the circular scanning method is adopted without a task scheduling mechanism, and the real-time performance is not high and the efficiency is low; it does not distinguish between real variables and virtual variables, resulting in timing disorder; there is no action trigger feature, only some features such ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/48
Inventor 程立熊慕文叶翔
Owner NR ELECTRIC CO LTD