NoSQL数据库技术在嵌入式装置中的应用  

Application of NoSQL database technology in embedded devices

作　　者：范三龙[1] 秦成虎[1] FAN Sanlong;QIN Chenghu(Guodian Nanjing Automation Co.,LTD.,Nanjing 210000,China)

机构地区：[1]国电南京自动化股份有限公司,南京210000

出　　处：《工业仪表与自动化装置》2020年第5期16-20,35,共6页Industrial Instrumentation & Automation

摘　　要：在互联网+创新背景下,用信息化技术的成果改造和提升传统的自动化设备,具有重要的前景。NoSQL数据库泛指非关系型数据库,是大数据时代的热点。该文在NoSQL数据库技术基础上,设计实现了一种适合在嵌入式装置中运行的实时数据库。从数据对象的描述,对象的存储和索引,对象的查找、遍历、增删改操作,消息总线中通知的注册和发送四个方面,介绍了数据库的组成,内存的使用,双哈希索引的构成,命令及消息传递机制等。该实时数据库可以完成数据对象的灵活定义和高效访问,进而实现各种自动化功能。Under the background of Internet+innovation,it has an important prospect to transform and upgrade traditional automation equipment with the achievements of information technology development.NoSQL database refers to the non-relational database,and is a technical hotspot in the era of big data.Based on NoSQL database technology,this paper designs and implements a real-time database suitable for running in embedded device.This paper introduces the composition of the database,the use of memory,the composition of the double HASH index,the command and the message passing mechanism from four aspects:object description,object storage and index,search,traversal,add and deletion operations of objects,registration and sending of notifications in the message bus.The real-time database can realize flexible definition and efficient access of data objects,thus realizing various automation functions.

关 键 词：NOSQL数据库 键值数据库 列存储 实时数据库 哈希桶 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]