Application research of battery capacity monitoring based on current limiting protection technology
According to the national standard GB/T 778.1-2018,the technical requirements of"180 days of battery warning"are put forward for smart water meters using battery power,a battery capacity monitoring application system based on current limiting protection technology was proposed for lithium subbattery of intelligent Internet of Things water meter,on the basis of ensuring the normal operation of the water meter,by adding a current limiting circuit,the current sampling circuit calculates the dis-charge quantity of the battery in real time,realizing the real-time monitoring of the battery capacity under the premise of limiting the large current discharge of the battery,the monitoring ability is verified by practical application.
lithium/thionyl chloride batterybattery capacity monitoringelectricity warningNB-IoT water meterthe state of charge
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