摘要
天然气计量的数学模型较为复杂,影响的因素较多。在分析天然气微机计量管理系统功能和特点的基础上,提出了双机热备动态冗余系统结构,对粗糙度系数的二元全区间插值,大型实时数据库的在线分析,流量补算采用的数据挖掘等关键技术进行了研究。保证了参数数据库、报警事件数据库、“黑匣子”数据库记录的完整,使系统的操作更加快捷方便,提高了系统的可靠性和计量的准确性。
Natural gas measuring mathematics model is relatively complex,its affecting factors are various. The key technologies were studied based on characteristic and the function of management system analysis ,including pairs of machine in hot to prepare the dynamic redundancy system structure,the inserting value of two elements of roughness coefficient in whole block, the analysing online of the large-scale real-time data base, the flow is mended and calculated and adopted by excavating technology with the data. They make systematic operation more shortcut and convenient, have guaranteed database record completely and have improved the systematic reliability with measure accuracy.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2005年第8期779-781,844,共4页
Chinese Journal of Scientific Instrument
关键词
动态冗余
插值
在线分析
流量补算
数据挖掘
Dynamic redundancy Inserting value Analysing online The flow is mended and regarded as Data excavating
