PROCEDE DE TRANSMISSION DE DONNEES PAR LIAISON RADIOFREQUENCE DANS UNE INSTALLATION DE TELERELEVE

• Main Authors: DORNSTETTER JEAN LOUIS, LACOSTE ROBERT
• Format: Patent
• Language: French
• Published: 24.03.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING; WIRELESS COMMUNICATIONS NETWORKS

The invention relates to a method for controlling digital data transmission in a remote-reading apparatus including a plurality of metering devices, each equipped with a radiofrequency module for communicating with a radiofrequency transmission/reception device of a gateway system of the apparatus, the method comprising a step of transmitting a digital signal from the radiofrequency module to the radiofrequency transmission/reception device and/or from the radiofrequency transmission/reception device to the radiofrequency module, the transmission being carried out via a carrier modulated by frequency shift modulation, the method being characterized in that the frequency shift modulation has a modulation index strictly equal to an integer value divided by two, and in that it includes a step of receiving the signal transmitted according to the modulation, comprising operations of generation of a synchronization signal synchronized with the received signal and synchronous detection of the received signal using the synchronization signal.