H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
H04Q9/04—Arrangements for synchronous operation
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Arrangements For Transmission Of Measured Signals
(AREA)
Procédé pour la détermination d'une position de référence, notamment en corrélation d'une position de mémoire, par exemple lors du déplacement d'un miroir.