Autonomous algorithm for relative error of generalized flow meters in tree topology

作者：Guo Jingtao; Jin Zhigang^*

来源：Measurement, 2011, 44(9): 1592-1597.

DOI：10.1016/j.measurement.2011.06.024

• Metrology
• Generalized flow
• Autonomous algorithm
• Tree topology
• Smart grid
• AMI
• Electricity meter

This paper treats electricity meters or water meters on-site as a cluster of generalized flow meters constructing a tree topology. Providing flow conservation, it is demonstrated that every meter's relative error can be calculated according to a group of readings of the meter cluster if the relative error of any meter in the cluster is given. The autonomous algorithm obtains relative errors without usage of external standard instrument. By the same algorithm, providing the accuracy class of any meter rather than the relative error exact, the range of relative errors of rest meters in the cluster can be worked out. With the aid of remote automatic reading system, the algorithm can reduce the maintenance cost of meters on site, and contributes to forecast the meters' service lives.

• 出版日期2011-11
• 单位天津大学