Open real-time database cross-process access method

An access method and database technology, which is applied in the field of open real-time database cross-process access, can solve the problems of system reliability decline, scalability and poor adaptability to application requirements, and achieve the effect of improving versatility
CN102298648AInactive Publication Date: 2011-12-28南京国电南自轨道交通工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
南京国电南自轨道交通工程有限公司
Publication Date
2011-12-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The open real-time database cross-process access technology proposed by the present invention adopts a microkernel architecture based on the POSIXIPC mechanism, and the real-time database system attached to it adopts a general pure object-oriented data description method independent of specific problem areas. The program implementation of the open real-time database cross-process access technology is based on the high-performance object-oriented real-time database ChRDB developed by the applicant. With the support of this technology, the ChRDB real-time database system can provide general and open real-time data access services (DDL, DML) to each user process running in the system, and support the efficient modification of each functional module and user process in the SCADA system And access the real-time data in the memory, so as to realize the interaction and logical linkage of various monitoring information.
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Description

technical field

[0001] Data Monitoring and Acquisition System (SCADA) is the basis for building many power supply and distribution network automation application systems. As the core component of SCADA system functions, it is the intermediary of real-time data exchange between processes based on memory. The performance of the real-time database subsystem directly determines Improve the comprehensive performance of the entire SCADA system. With the increasing complexity of automation applications, more and more networked intelligent devices and automation subsystems are connected to the SCADA system, and the configuration flexibility, availability, capacity, and data throughput of the real-time database system used are directly proposed. higher requirements. Background technique

[0002] In order to save, calculate, process and distribute real-time collected data efficiently, SCADA systems usually provide a memory-based real-time database subsystem. The communication protoc...

Claims

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