Data asynchronization storage and access mechanism applied to industrial control system

An industrial control system and data technology, applied in memory systems, electrical digital data processing, special data processing applications, etc., can solve the problems of reduced database access efficiency, inability to be suitable and competent, etc., to achieve enhanced fault tolerance, improved system efficiency, The effect of high access efficiency
CN103514261AActive Publication Date: 2014-01-15北京华电天益信息科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京华电天益信息科技有限公司
Publication Date
2014-01-15

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Abstract

The invention relates to a data asynchronization storage and access mechanism applied to an industrial control system. The data asynchronization storage and access mechanism comprises a real-time data-caching step of the industrial control system and a data reading step of the industrial control system. A memory database is adopted in the real-time data-caching step of the industrial control system and the data reading step of the industrial control system, a real-time data structure inside the memory database is a first-in first-out annular queue, a lengthening manner is adopted in a data item of the annular queue, a head pointer and a tail pointer are arranged, the head pointer points at a first byte of data, to be read, in the head of the annular queue, the tail pointer points to a next available empty byte of the written data in the tail of the queue. The data asynchronization storage and access mechanism is applied to data exchanging in the fields of wide area measuring, real-time trades, military monitoring and the like, and the data access can be asynchronous and delayed through caching and organizing the data via the memory database of the lengthening round-robin queue.
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Description

technical field

[0001] The invention relates to a data asynchronous storage and access mechanism, and more specifically relates to a data asynchronous storage and access mechanism applied to an industrial control system. Background technique

[0002] For the application system environment of real-time and high concurrent data access, the method of properly processing and organizing data is more and more inclined to use memory database. Due to its high performance, it is especially suitable for wide-area measurement and real-time transactions. , military surveillance and other fields. Compared with traditional disk-based databases, memory databases have obvious characteristics. Since data storage and processing are carried out in physical memory, the response time of data access can reach the microsecond level or even higher in the local machine. On the one hand, it can provide throughput dozens of times higher than that of ordinary databases. In view of these advantages, t...

Claims

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