公开(公告)号：US20240201278A1

公开(公告)日：2024-06-20

申请号：US18524119

申请日：2023-11-30

Applicant: Kamstrup A/S

Inventor： Mads Erik Lund JENSEN ,  Juha-Matti SAVOLAINEN

IPC: G01R31/392 ,  G01R31/3842 ,  H02J7/00

CPC classification number: G01R31/392 ,  G01R31/3842 ,  H02J7/0047

Abstract: A consumption meter includes a battery for energy supply and an accumulation module. The accumulation module is configured for accumulating a first quantity over a time period to obtain a first accumulated quantity. The first quantity is based on a product of at least a current drawn from the battery and a duration over which the current was drawn from the battery. The accumulation module is further configured for transmitting the first accumulated quantity at regular or irregular intervals to a battery lifetime estimation module for calculating a remaining battery lifetime on basis of a nominal battery capacity, the received first accumulated quantity and an operating time of the battery. A consumption meter system includes the consumption meter and a battery lifetime estimation module.