Process and installation for afericao of habits of consumption of a population of test.

摘要

A telecontrol monitor apparatus (40) is connected with a TV receiver (1a) and VCR (2) and to a central computer (6) through a telephone line. A further monitor apparatus (4b) but without a module for connection to the telephone network is connected to a second TV receiver (1b). The two monitors are interconnected by high-frequency signals sent over the supply mains (7). The carrier frequency of the TV channel being viewed is determined or the kind of reproduced video recording by use of a video module connected to the synchronisation head of the associated VCR. The data are memorised by the respective telecontrol monitor and recalled periodically by the central computer.