Real-time event management method for intelligent electronic equipment

A smart electronic device and real-time event technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not being able to completely retain important events, and achieve the effect of saving hardware costs, reducing overhead, and improving stability

Active Publication Date: 2011-01-12
STATE GRID ELECTRIC POWER RES INST
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Problems solved by technology

[0008] The purpose of the present invention is to propose a general real-time event management method to solve the problems that the timing (1) cannot be strictly controlled in a multi-tasking environment or that important events (2) cannot be completely reserved under heavy load conditions, so as to ensure that the intelligent electronic The stability of real-time event processing of equipment in process monitoring, event storage, event reading and record transmission, etc., improve the real-time processing performance of intelligent electronic equipment and the response speed to the outside, and improve the stability and reliability of equipment operation

Method used

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  • Real-time event management method for intelligent electronic equipment

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Embodiment Construction

[0024] The concrete implementation scheme of this method is as follows:

[0025] (1) Define the structure for storing real-time event data entities, index nodes, and various management data. For the logical relationship between various structures, see figure 1 .

[0026] An array for storing real-time event entities is defined in SRAM, and each event body defines a common information header, including: event occurrence time, priority reflecting event importance, reference counter and validity flag bit. Define the linked list nodes storing the positions of the front and rear nodes of the doubly linked list in the memory. The real-time event index node contains a linked list node and an index variable, and the value of the index variable is the subscript serial number of the event array in the SRAM area.

[0027] Define a linked memory pool of free index nodes, and use the backward pointers of the linked list nodes in the index nodes to form a singly linked list. A head pointe...

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Abstract

The invention relates to a real-time event management method for intelligent electronic equipment. The method comprises the following steps of: 1) separately storing and processing a data entity and a logical relationship of a real-time event; 2) managing an idle index node by using a chain pool mechanism; 3) adopting a doubly linked list structure with one write pointer and a plurality of read pointers; 4) processing the logical relationship among real-time events by using two keywords, namely event occurrence time and event priority; 5) fully and correctly reestablishing the whole doubly linked list in the process of initialization according to a generation time keyword stored in an SRAM event data entity; and 6) establishing a process list and event management routine interface for connecting an operation system. The method has the advantages of capacity of managing various real-time events in a converting station, adapting to various real-time operation systems, simplifying the complexity of managing the real-time events by multiple kinds of intelligent electronic equipment, particularly analyzing, calculating and processing the real-time events.

Description

technical field [0001] The invention relates to a method for managing real-time events that need to be saved after power-off, and is suitable for the management of external or self-generated real-time events by intelligent electronic equipment. Background technique [0002] With the development of the national grid construction, the substation automation system has been widely used in substations of various voltage levels. The substation automation system consists of a variety of intelligent electronic devices with different functions, such as various protection devices, measurement and control devices, communication devices, safety and stability devices, merging units, intelligent operation boxes, and digital wave recorders. During the operation of the substation, a large number of various types of real-time events will occur, such as the change information of the circuit breaker and the disconnector, the trip information output by the protection device, the information on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 吴海罗华煜滕春涛张少波张宏波田小锋
Owner STATE GRID ELECTRIC POWER RES INST
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