Data transmission system, in particular for consumption data acquisition

The invention relates to a data transmission system and more particularly to a so-equipped consumption data acquisition system comprising at least a transmitter and a receiver for receiving data packets that are sent at intervals from a respective transmitter, the receiver comprising a time control means for controlling the timing of its receiving operation, which on the basis of target values ​​for the time intervals consecutive data packets of the relevant transmitter estimates the respective timing of the expected next data transmission and the receiver temporarily ready to receive in each case switches in a tolerance time interval which contains the estimated time. To estimate the time of the next data transmission timing control means corrects the respective current set point for the time interval from the last data transmission to the expected next data transmission by a correction factor corresponding to the ratio of the actual time from the penultimate to the last successful data reception and the corresponding setpoint interval.