FR3076145B1 - DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK - Google Patents

DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK Download PDF

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Publication number
FR3076145B1
FR3076145B1 FR1763180A FR1763180A FR3076145B1 FR 3076145 B1 FR3076145 B1 FR 3076145B1 FR 1763180 A FR1763180 A FR 1763180A FR 1763180 A FR1763180 A FR 1763180A FR 3076145 B1 FR3076145 B1 FR 3076145B1
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France
Prior art keywords
secondary device
date
data network
audio stream
devices communicating
Prior art date
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FR1763180A
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French (fr)
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FR3076145A1 (en
Inventor
Alain Molinie
Eric Lavigne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cabasse Group Fr
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Awox SA
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Priority to FR1763180A priority Critical patent/FR3076145B1/en
Priority to PCT/FR2018/053532 priority patent/WO2019122792A1/en
Publication of FR3076145A1 publication Critical patent/FR3076145A1/en
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Publication of FR3076145B1 publication Critical patent/FR3076145B1/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

Le procédé (100) de synchronisation temporelle de dispositifs communicant sur un réseau de données, comporte : - une étape (105) d'émission, par un dispositif primaire, dit «serveur de temps », d'un signal de synchronisation temporelle, - une étape (110) de réception, par au moins un dispositif secondaire, dit « déclencheur », dudit signal de synchronisation, - une étape (115) de comparaison, par chaque dit dispositif secondaire, pour estimer une valeur de délai de transmission, - une étape (116) de filtrage statistique de valeurs de délai de transmission estimées, - une étape (120) de détermination, par chaque dit dispositif secondaire, d'une valeur d'horloge déterminée, puis, de manière itérative : - une étape (121) d'émission, par un dispositif primaire, d'un signal, - une étape de réception, par au moins un dispositif secondaire, dudit signal, - une étape (122) d'estimation, par au moins un dispositif secondaire, d'une date de lecture du flux sonore, - une étape (123) de lecture, par au moins un dispositif secondaire, du flux audio à la date de lecture estimée, - une étape (124) de comparaison, par au moins un dispositif secondaire, entre la date de restitution du flux audio et la date de lecture estimée dudit flux audio, - une étape (125) de détermination, par chaque dit dispositif secondaire, d'une valeur de consigne d'un régulateur PID à consigne variable.The method (100) for the time synchronization of devices communicating on a data network, comprises: - a step (105) for sending, by a primary device, called a “time server”, a time synchronization signal, - a step (110) of reception, by at least one secondary device, called a “trigger”, of said synchronization signal, - a comparison step (115), by each said secondary device, to estimate a transmission delay value, - a step (116) of statistical filtering of estimated transmission delay values, - a step (120) of determining, by each said secondary device, a determined clock value, then, iteratively: - a step ( 121) transmission, by a primary device, of a signal, - a step of reception, by at least one secondary device, of said signal, - a step (122) of estimation, by at least one secondary device, d '' a date of reading of the sound stream, - a step (123) of reading, p ar at least one secondary device, of the audio stream at the estimated playback date, - a step (124) of comparison, by at least one secondary device, between the restitution date of the audio stream and the estimated playback date of said audio stream , a step (125) for determining, by each said secondary device, a setpoint value of a PID variable setpoint regulator.

FR1763180A 2017-12-22 2017-12-22 DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK Active FR3076145B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1763180A FR3076145B1 (en) 2017-12-22 2017-12-22 DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK
PCT/FR2018/053532 WO2019122792A1 (en) 2017-12-22 2018-12-21 Device and method for temporal synchronization of devices communicating on a data network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1763180 2017-12-22
FR1763180A FR3076145B1 (en) 2017-12-22 2017-12-22 DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK

Publications (2)

Publication Number Publication Date
FR3076145A1 FR3076145A1 (en) 2019-06-28
FR3076145B1 true FR3076145B1 (en) 2021-05-28

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FR1763180A Active FR3076145B1 (en) 2017-12-22 2017-12-22 DEVICE AND METHOD FOR TEMPORAL SYNCHRONIZATION OF DEVICES COMMUNICATING ON A DATA NETWORK

Country Status (2)

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FR (1) FR3076145B1 (en)
WO (1) WO2019122792A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8248168B2 (en) * 2011-01-11 2012-08-21 Nxp B.V. PID control for transmitter-receiver synchronization

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Publication number Publication date
WO2019122792A1 (en) 2019-06-27
FR3076145A1 (en) 2019-06-28

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