A multilevel real-time database system must have security constrains in addition to timing constrains.
一个多级安全实时数据库系统不仅需要有安全限制,同时也要有时间约束。
This paper suggests a trigger mechanism supporting advanced application in active real-time database system.
提出了一种支持现代应用的主动实时数据库系统的触发器机制。
And nowadays, in the industrial field, real-time database system is being used more and more, so it is so valuable to study and apply it.
并且,现今实时数据库体系在工业范畴得到了越来越普遍的应用,所以它具有主要的研讨和适用价值。
The core problem of the real-time database system is to ensure the consistency of data and the correctness of events, which are related to time.
实时数据库的核心问题是事务的处理既要确保数据的一致性,又要保证事务的正确性,而它们都与定时相关联。
The real-time database system saves the dynamic data produced in the run of system and the various interior information needed for the normal run.
实时数据库保存系统运行时产生的动态数据和系统正常运行所需的各种内部信息。
In this paper, a trigger mechanism for real-time database system is presented. The system have abilities to enforce time-constraints and activate.
本文给出实时数据库系统中的触发器机制,使系统具有实施时限的能力,同时具有主动性。
The partition technique of ORACLE is introduced in this article; some partition schemas of real-time database system in MDSS are also given, with the experiments results.
本文对ORACLE数据库的分区技术进行了介绍,对分区技术在国家级气象资料存储检索系统(MDSS)实时数据库中的应用方案及初步实验结果进行了探讨。
The general industrial control software includes graphic interface system, the third party program module, control function module and real-time database system module etc.
一般的工控软件包括图形界面系统、第三方程序接口组件、控制功能组件、实时数据库系统等组件。
In the construction of industrial control configurable software for greenhouse agriculture production detection and control process, design of real-time database system is introduced.
介绍了在面向温室农业生产监控过程的工控组态软件建设中,实时数据库系统的设计。
The distribution of transactions and unpredictability of transaction triggering make the transaction schedule more difficult in distributed active real-time database system (DARTDBS).
事务的分布性和事务触发的不可预测性使得分布式主动实时数据库系统中的事务调度变得较为复杂。
With this system, certain vehicles' real-time status, such as gasoline consumption, load and position, can be monitored and sent to a national database.
有了这个系统,每个车辆的即时状态,如油耗量,负荷和位置,都可以监测到并发送到国家数据库。
This paper analyzes a real time system of electric power database based on CORBA module model.
本文探讨了基于CORBA组件模型体系的电力调度实时数据库管理系统。
Adopting search technique, database technique and network technique, the thesis realizes the news search engine that applies to the system and provides real time news for fast train.
本文结合搜索、数据库、网络等多种技术,实现了用于高速铁路旅客信息系统的新闻搜索引擎,该引擎为高速列车提供实时新闻。
This paper analyzes the function characteristics and structure of the distributed real-time database, data object and transaction's type in industry monitor&control system.
分析了工业监控系统中的分布式实时数据库的的功能与特点、结构、数据对象和事务的种类。
After analysing the real requirement of embedded remote real-time supervisory system, the application system architecture based on embedded database was put forward in the paper.
本文在分析了嵌入式远程实时监控系统的实际需求之后,提出了基于嵌入式数据库的应用系统架构方案。
Functional architectures and interface techniques for real time database playing the role of integrated platform in advanced control system were emphatically introduced.
着重介绍了在先进控制系统中起着集成平台作用的实时数据库的功能结构及其接口技术。
The primary condition for the fault diagnosis expert system of hydropower plants is the real time acquisition of data and efficient organization and management by the real time database.
实时数据库及时准确地从现场获取数据并有效地组织和管理,是水电厂设备故障诊断系统进行故障诊断的首要条件。
By using distributed database to realize distributed ontology, we can both ensure the distributedness of the system and the real-time updating and data consistency of the system.
采用分布式数据系统来设计实现分布式本体的方案,既能保证系统数据的分布性,又可以成功实现系统中实时更新和数据的一致性。
The design of a real-time network database structure and its implementation method will determine, to a great extent, the performance of an automatic maintenance and switching scheduling system.
实时网络数据库的数据结构设计和实现方法在很大程度上决定了计算机辅助的检修票和操作票开票软件的成败与效果。
The database system for real time scheduling is a kernel to realize the integration of scheduling anel management.
实时调度数据库系统是实现工业过程实时调度与管理一体化的核心。
From the development background, solution, system design and realization, the production and supervision real time database system of Baling Petrochemical Company, SINOPEC was analyzed and discussed.
从开发背景、解决方案、系统设计与实现等方面对中石化巴陵分公司生产监控实时数据库系统进行分析和说明。
In a distributed real time database system, the only way to ensure transaction atomicity is to investigate and develop a real time atomic commit protocol.
在分布式实时数据库系统中,保证事务原子性的唯一途径是研究和开发出一个实时的原子提交协议。
This database system needs to be rapid and real time.
而且该数据库系统要求快速性和实时性。
This paper analyzes the function characteristics and structure of the distributed real-time database, data object and transactions type in industry monitor&control system.
分析了工业监控系统中的分布式实时数据库的的功能与特点、结构、数据对象和事务的种类。
The supervisory information system(SIS) and its database platform PI(plant information)real-time database, data flow and point building technology in PI database are introduced.
介绍了厂级监控信息系统(SIS)及其数据库平台PI实时数据库、PI数据库中的数据流程以及PI数据库的建点技术。
In this paper, we propose a storage architecture for an embedded real time database system according to the data character of real time application and the performance of the storage media.
本文针对嵌入式系统的应用环境和实时数据库系统的数据特征,通过对各种存储器性能的比较,提出了嵌入式实时数据库系统的存储体系结构。
The system is composed of 7 subsystems: database management, monitoring and forecasting in the real-time, forecasting, diagnosing, knowledge of pests, the service of weather and message board.
系统分为数据库管理、实时监测预警、预测决策、诊断、知识查询、气象服务及留言版7个子系统。
The system is composed of 7 subsystems: database management, monitoring and forecasting in the real-time, forecasting, diagnosing, knowledge of pests, the service of weather and message board.
系统分为数据库管理、实时监测预警、预测决策、诊断、知识查询、气象服务及留言版7个子系统。
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