| 摘要 |
The invention relates to a system of consumption meters (2) arranged in a communication network, where the control program of the consumption meters can be updated via the communication network. A data collector (3) is arranged for updating the control program of a group of consumption meters over the network. This is performed by establishing a dedicated update session to each consumption meter of the group of consumption meters, and transmitting addressed update program segments to consumption meters in session. During the update session with a given consumption meter, any other consumption meter which is within communication range (8) will, if it receives the update segment, store it even though the segment is addressed to another meter. In an update session of a next meter, only segments not already stored from a previous session to another consumption meter are transmitted to the next meter. |
