Smart water meter, which incorporates IoT (Internet of Things) technology, is receiving high attention due to recent development of information and communication technology. If traditional mechanical water meters are replaced by electronic ultrasonic water meters, micro flow rate can be measured and the measurement uncertainty can be improved due to the age of use. This enables smart metering such as AMR (Automatic Meter Reading) or AMI (Advanced Metering Infrastructure) as well as various water related services. In this paper, a low power ultrasonic water meter will be designed to operate with a battery for a long period of time. A water meter shall be designed to operate for at least 9 years, which is the requirement for type approval. In this paper, a low-power modeling is performed for battery-operated ultrasonic water meter to work for at least 10 years. The proposed low power embedded system model will be verified with actual test circuits.

中文翻译：

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低功耗超声波水表的设计与实现

结合了物联网（IoT）技术的智能水表由于信息和通信技术的最新发展而受到高度关注。如果将传统的机械水表替换为电子超声波水表，则可以测量微流量，并且由于使用年限的原因，可以改善测量不确定度。这可以实现智能计量，例如AMR（自动抄表）或AMI（高级计量基础设施）以及各种与水有关的服务。本文将设计一种低功率超声波水表，使其能够长时间使用电池工作。水表应设计为至少运行9年，这是型式认可的要求。在本文中，对电池供电的超声波水表进行至少10年的低功耗建模。拟议的低功耗嵌入式系统模型将通过实际测试电路进行验证。