Database system and data management method

Abstract

The invention provides a database system and a data management method. The system comprises a database module which comprises a plurality of database units. wherein each database unit stores service data of a group of monitoring nodes meeting a preset condition, the address space management module is used for managing a plurality of virtual nodes and access addresses corresponding to the virtual nodes, and the actual service data of the database units are accessed through the access addresses; the address space management module is also used for receiving the service data generated by each monitoring node, analyzing a target access address of a target database unit to which the service data belongs, and transmitting the service data to the target database unit indicated by the target access address based on a preset protocol; and the database module is used for storing business data. According to the invention, the delay of service data access can be effectively avoided, the consistency and integrity of the service data are effectively ensured, and the service data access performance is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a database system and a data management method. Background technique [0002] Each professional subsystem in the rail transit integrated monitoring system includes many subordinate devices, and each device includes several monitoring nodes. For example, each camera for the closed-circuit television subsystem needs corresponding nodes to monitor its switch status , direction and other parameters, the data collected by each monitoring node must be organized and managed in the real-time database, and the rationality of data organization in the actual system will have a great impact on the performance of the system. [0003] In the related technology, after the system detects that there is a change in data, the data is written into the real-time database table corresponding to the monitoring node where the data has changed through the access interface of the real-time database, ...

AI Technical Summary

Problems solved by technology

[0004] In this way, when the upper application system needs to query data, the latest data is searched through SQL query. When there is a large amount of data in the table, it will take a long time, which will easily cause delays in data access. The system involves multiple monitoring nodes, which will generate a large amount of business data at the same time. In the case of poor network conditions or lack of security guarantees in the system architecture, it is difficult to ensure data consistency and integrity

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