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CORBA-based data definition and access method for comprehensive monitoring system

A comprehensive monitoring system, data definition technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., to achieve the effect of improving security

Active Publication Date: 2012-04-25
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no specific implementation and practical application of the mature CORBA-based data definition and access method for information exchange and interconnection between multiple subsystems in the rail transit integrated monitoring system.

Method used

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  • CORBA-based data definition and access method for comprehensive monitoring system
  • CORBA-based data definition and access method for comprehensive monitoring system
  • CORBA-based data definition and access method for comprehensive monitoring system

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Experimental program
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Embodiment approach

[0024] In the present invention, a unified data type definition is disclosed. The definition of the unified data type is as follows (the order of each definition is type name, type symbol and type number):

[0025] Default type: C_DATATYPE_DEFAULT = 0;

[0026] String type: C_DATATYPE_STRING = 1;

[0027] Character type: C_DATATYPE_UCHAR = 2;

[0028] Short integer: C_DATATYPE_SHORT = 3;

[0029] Integer type: C_DATATYPE_INT = 4;

[0030] Time type: C_DATATYPE_DATETIME = 5;

[0031] Single-precision floating-point number type: C_DATATYPE_FLOAT = 6;

[0032] Keyword type: C_DATATYPE_KEYID = 7;

[0033] Binary type: C_DATATYPE_BINARY = 8;

[0034] Text type: C_DATATYPE_TEXT = 9;

[0035] Image type: C_DATATYPE_IMAGE= 10.

[0036] After the above data types are uniformly defined, all the result values ​​returned in the system can be defined in accordance with the above data types to shield data differences and ensure consistency and completeness.

[0037] In the present invention, a data access st...

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Abstract

The invention discloses a CORBA-based data definition and access method for a comprehensive monitoring system, which is applied to information exchange and interconnection in a rail traffic comprehensive monitoring system. In the invention, the CORBA-based data definition and access method for the comprehensive monitoring system is realized by the following steps: using uniform data type definition to screen the differentiation of data results; completely describing a plurality of data requests and return values through accessing the definition of data structure; averaging loads of a server through a detection service method; and accessing full line data by a two-stage data request. Through the method, data access security is greatly improved, the reliability and the integrity of data areensured, and the problem that local data only can be accessed but can not be expanded can be solved.

Description

technical field [0001] The present invention relates to a data definition and access method for information exchange and interconnection in an integrated monitoring system, in particular to a data definition and access method for information exchange and interconnection in a rail transit integrated monitoring system based on the CORBA standard , belonging to the field of rail transit automation. Background technique [0002] The rail transit integrated monitoring system is a powerful, open, modular and scalable distributed control system developed by applying advanced computer, network, communication and automatic control technologies. It is an automation system that integrates and interconnects multiple subsystems. . As the subsystems continue to be networked and integrated, in order to realize interconnection, resource sharing and mutual linkage among each other, a higher and wider level is required to collect and process information from each subsystem. [0003] The mid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
Inventor 梁奕刘孟觉方俊
Owner NARI TECH CO LTD