GONG Long-cong,ZHUO Xiong,XU Jun-ge.Analysis of Leakage Management in Community Based on Combination of NB-IoT and DMA Technology[J].China Water & Wastewater,2021,37(13 13):40-46.
Analysis of Leakage Management in Community Based on Combination of NB-IoT and DMA Technology
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
13 13
Page:
40-46
Column:
Date of publication:
2021-07-01
- Abstract:
- Quantitative leakage management of water supply and distribution network of Century Blue King City Community in Fuzhou was analyzed based on combination of NB-IoT and DMA. Real-time data were collected and transmitted to the leakage platform by NB-IoT intelligent remote water meters. The minimum night flow was determined according to continuous monitoring data, and the new water leakage points were discovered in time. The common pattern and distribution of leakage could be identified by summarizing and analyzing the leakage maintenance records. It was found that the leakage frequently occurred in the service pipe of each building. It was thus decided to replace the service pipes and install NB intelligent remote water meter after evaluation. The project was completed after 15 months of transformation, and the minimum night flow was always less than 2.5 m3/h. The real-time data continuously monitored by the platform for 12 months indicated that the averaged monthly leakage ratio was all lower than 5%, and there was a significant linear relationship between the average daily and night legal resident water consumptions. Through the combination of NB-IoT and DMA technology, the leakage points could be quickly and accurately identified and repaired, and the leakage of the pipeline network could be effectively controlled, which saved about 28×104 m3 water resources. The practice can provide reference for quantitative leakage control of residential water supply network.
Last Update:
2021-07-01