| 天然气微机计量管理系统关键技术研究 |
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| 引用本文： | 余立建,吕忠贵.天然气微机计量管理系统关键技术研究[J].仪器仪表学报,2005,26(8):779-782. |
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| 作者姓名： | 余立建 吕忠贵 |
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| 作者单位： | [1]西南交通大学计算机与通信工程学院,成都610031 [2]成都国光电子仪表有限责任公司,成都610061 |
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| 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。
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| 关 键 词： | 动态冗余 插值 在线分析 流量补算 数据挖掘 |
| 修稿时间： | 2003年12月1日 |
The Key Technical Research of Natural Gas Computer Measuring and Administrating System |
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| Yu Lijian Lu Zhonggui.The Key Technical Research of Natural Gas Computer Measuring and Administrating System[J].Chinese Journal of Scientific Instrument,2005,26(8):779-782. |
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| Authors: | Yu Lijian Lu Zhonggui |
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| Affiliation: | Yu Lijian~1 Lu Zhonggui~2~1 |
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| Abstract: | 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. |
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| Keywords: | Dynamic redundancy Inserting value Analysing online The flow is mended and regarded as Data excavating |
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