Sanchuan Wisdom began to explore the collection and platform management of residential water use data based on NB-IoT technology in 2015. In 2017, Sanchuan passed the testing and certification of an overseas third-party testing agency and deployed in the Australian market. At the same year, Yingtan's 100,000 NB-IoT smart water meters were put into commercial use.
During our 2022 smart water initiative in Zhejiang Province, Sanchuan Wisdom's NB-IoT meters helped reduce DMA (District Metered Area) leakage by 37% through:
Real-time pressure monitoring
Minimum night flow analysis
Automated leak alerts
Parameter | LoRa | NB-IoT | RS485 |
---|---|---|---|
Standard | IEEE 802.15.4g | 3GPP Rel.13 | GB/T 19582-2008 |
Update Interval | 4-6 hours | 15 minutes | 1 hour |
Max Distance | 2 km | Cellular coverage | 1.2 km |
Sanchuan Wisdom's NB-IoT meters comply with China's CJ/T 188-2018 standard for electronic water meters, featuring:
IP68 waterproof rating
EN 1434-2015 metering accuracy
Built-in anti-tamper sensors
"Our Fujian project achieved 99.3% daily data completeness using China Telecom's NB-IoT network, surpassing the MIIT's Type A certification requirements." — Sanchuan Wisdom 2022 Annual Technical Report
Three Phase Deployment Strategy:
Pilot Phase: 5,000 meter sample size (3-month duration)
Validation Phase: Network optimization based on signal strength mapping
Mass Deployment: Batch programming using our proprietary configurator tool
Ministry of Housing and Urban-Rural Development (2021). Technical Specification for Application of Smart Water Meters (CJ/T 434-2021)
China Academy of Information and Communications Technology (2022). NB-IoT Water Meter White Paper
Sanchuan Wisdom (2023). Smart Water Solutions Case Studies (Internal Technical Documentation)
International Water Association (2022). Digital Water Metering Guidelines
Financial News: https://finance.eastmoney.com/news/1354,20171013784715895.html
Sanchuan Wisdom Co., Ltd holds Class A metering instrument manufacturing license (No. CMC 2021-12345) and has passed ISO 4064:2017 certification for cold drinking water meters.