Analysis On Applications Of System Reliability And Data Security

With the applications of computer technology and measure and control technology for natural gas measure and administration, the research and applications of new technology have been put a important position.During of the natural gas measure and administration, the high reliability and is necessary, because the other work,such as statistic and inquire administration/when the data is collected.The author discusses system redundancy and hot-redundancy based on system reliability and database security.In the gas measure and administrative system Dual CPU Hot-redundancy interconnected system structure is used.In the way the system reliability is enhanced from hardware.the importance of data in the database decide data encryption is essential.Differ with the trational communation encryption the database encryption has itself characteristic and request.in the article the author analyses request and limit and influence of database encryption.the database granularity is constrast. AES arithmetic is used to encrypt several database field.the database produces a great deal key ,so they need the unification to admistrate.The management system run short of some data during the instrument is checked. That the flow is mended is necessary. The measure is typical time series data. The author use the similarity of series in database to mend the flow during the instrument is checked. In the last the author analyses the general software protection technology and use then to protect the software.The gas measure and administration system has wide foreground in province. The key technology lied in the system was studied in the thesis and enhanced the system reliability and data security. The research make the system has wide foreground. The key technology is of the character of theory guidance and applicability to researching other systems also.