PROCESS AND SYSTEM FOR TRANSMITTING ENERGY AND DATA

摘要

In a process for transmitting energy from a main unit (2) to an auxiliary unit (3) and for transmitting data bidirectionally between these units, energy is transmitted from the main unit (2) to the auxiliary unit (3) in the form of an alternating supply signal of predetermined frequency, a clock signal is generated on the basis of the alternating supply signal, a first data signal is transmitted from the main unit (2) to the auxiliary unit (3), a time window is generated in said auxiliary unit (3) from the moment at which the first data signal is received and on a time basis determined by the clock signal, the number of oscillations of the first data signal within the time window is counted and used to determine the transmitted first data value, whereupon retransmission of a second data signal from the auxiliary unit (3) to the main unit (2) takes place.