| 摘要 |
PROBLEM TO BE SOLVED: To allow a user to perform simple charge or the like in a meter which measures the amounts of use of a utility.SOLUTION: When residual quantity obtained by subtracting the amounts of use measured by a measurement section 19 from available amounts stored in a storage section 20 becomes zero, a meter 10 blocks the supply of a utility by a blocking section 18. When a radio communication section 14 receives information related to the available amounts from a mobile terminal 30, the available amounts stored in the storage section 20 are updated on the basis of the information. |
