System for generating redundant synchronisation signals

The invention concerns a method for generating a redundant synchronisation signal CMI_Backup (H) from a main synchronisation signal CMI that synchronises the operation of data acquisition modules positioned in a chain of acquisition modules and organised into groups, or HUBs, each HUB transferring t...

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Bibliographische Detailangaben
Hauptverfasser:	FASSY, Olivier, TOMASINI, Didier
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MULTIPLEX COMMUNICATION PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention concerns a method for generating a redundant synchronisation signal CMI_Backup (H) from a main synchronisation signal CMI that synchronises the operation of data acquisition modules positioned in a chain of acquisition modules and organised into groups, or HUBs, each HUB transferring the acquired data to a common data bus, said data circulating on the common data bus in the form of data frames (C), each comprising a frame start signal or Top_Frame_Line, the signal CMI being synchronous with the stream of frames (C) circulating on the data bus. A redundant synchronisation signal CMI_Backup is formed at each HUB by extracting the frame start signal (E) from each frame and by producing a internal synchronisation signal or Top_Frame_Backup (F), the period of which is slaved to the period of occurrence of the frame start signal (E).