A 180 nm CMOS smart ultrasonic water flow meter circuit for IoT smart society

This paper proposes an ultrasonic water flow meter to be used as an internet of things smart meter. The proposed system is designed with a standard 180 nm CMOS technology. Time-zooming and self-calibration methods are also presented to achieve high accuracy and low power simultaneously. The measurement for the fabricated chip was carried out by using a custom-designed test board, and results verified that the system can perform correctly. Thanks to the proposed correction methods and designed circuit, the proposed smart water flow meter can feasibly be used as a next-generation smart meter.

[1]  H. R. Rahbari,et al.  An intelligent approach for calculating natural gas compressibility factor and its application in ultrasonic flow meters , 2020 .

[2]  Oliver Büker,et al.  Calibration of an ultrasonic flow meter for hot water , 2013 .

[3]  Xue Jun Li,et al.  Design and Implementation of a Self-Powered Smart Water Meter , 2019, Sensors.

[4]  Rodney Anthony Stewart,et al.  Smart metering: enabler for rapid and effective post meter leakage identification and water loss management , 2013 .

[5]  Jaime Lloret,et al.  An Integrated IoT Architecture for Smart Metering , 2016, IEEE Communications Magazine.

[6]  A. Abdullah,et al.  Simple method for measuring vibration amplitude of high power airborne ultrasonic transducer: using thermo-couple. , 2014, Ultrasonics.

[7]  Andrea Zanella,et al.  Internet of Things for Smart Cities , 2014, IEEE Internet of Things Journal.

[8]  R. Graaff,et al.  A simple and accurate formula for the sound velocity in water. , 1998, Ultrasound in medicine & biology.

[9]  Chul-Ho Lee,et al.  An implementation of ultrasonic water meter using dToF measurement , 2017 .

[10]  Suhyun Park,et al.  Multi-Angle Liquid Flow Measurement Using Ultrasonic Linear Array Transducer , 2020, Sensors.

[11]  Saraju P. Mohanty,et al.  Everything You Wanted to Know About Smart Cities , 2016, IEEE Consumer Electron. Mag..

[12]  Marco Dell'Isola,et al.  Measurement of high-pressure natural gas flow using ultrasonic flowmeters , 1997 .

[13]  Hwangnam Kim,et al.  Future of IoT Networks: A Survey , 2017 .

[14]  Nour-Eddine Bouguechal,et al.  An Enhanced Technique for Ultrasonic Flow Metering Featuring Very Low Jitter and Offset , 2016, Sensors.

[15]  F. Dong,et al.  Horizontal oil-water two-phase dispersed flow velocity profile study by ultrasonic doppler method , 2019, Experimental Thermal and Fluid Science.

[16]  Sameer Qazi,et al.  Internet of Things (IoT) for Next-Generation Smart Systems: A Review of Current Challenges, Future Trends and Prospects for Emerging 5G-IoT Scenarios , 2020, IEEE Access.

[17]  Rabindranath Bera,et al.  A Comprehensive Survey on Internet of Things (IoT) Toward 5G Wireless Systems , 2020, IEEE Internet of Things Journal.

[18]  Rolf H. Weber,et al.  Internet of Things - New security and privacy challenges , 2010, Comput. Law Secur. Rev..