WANGZi-qi,XUQiang,ZHENGCheng-zhi,et al.Influences of Data Acquisition Settings on the DMA Flow Patterns[J].China Water & Wastewater,2022,38(8):20-24.
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Influences of Data Acquisition Settings on the DMA Flow Patterns

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第8期 Page: 20-24 Column: Date of publication: 2022-04-17
Author(s):
WANG　Zi-qi1;  XU　Qiang1;  ZHENG　Cheng-zhi2;  QIANG　Zhi-min1;  ZHONG　Wen-jun2;  ZHANG　Zhao-jun2;  SHU　Shi-hu3
（1. Key Laboratory of Drinking Water Science and Technology， Research Center for Eco-Environmental Sciences， Chinese Academy of Sciences， Beijing 100085， China； 2. Guangdong Yuehai Waterworks Co. Ltd.， Shenzhen 518021， China； 3. College of Environmental Science and Engineering， Donghua University， Shanghai 201620， China）
Keywords:
district metered area;  data acquisition period;  data precision;  flow pattern;  minimum night flow
Abstract:
Water consumption data monitored by smart water meters provide a crucial foundation for determination of water consumption pattern and water loss analysis in water distribution systems. However, the analysis results could be critically influenced by data precision and acquisition period. Based on the water flow data from water meters at ten district metered area (DMA) entrances, this study analyzed the influences of acquisition period and data precision on the calculation of minimum night flow (MNF) and the analysis of DMA flow pattern. The results indicated that the increase in acquisition period would raise the MNF calculation results and deteriorate the fineness of water consumption pattern. Water consumption would follow a pattern of stages or even two lines with the reduction of data precision, which could not reflect the real water consumption pattern. The investigation illustrates the relationship between the acquisition period and data precision of the water meter, which needs to match with each other during the parameter setting.
Last Update: 2022-04-17