WO2002028004A3 - Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation - Google Patents

Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation Download PDF

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Publication number
WO2002028004A3
WO2002028004A3 PCT/DE2001/003581 DE0103581W WO0228004A3 WO 2002028004 A3 WO2002028004 A3 WO 2002028004A3 DE 0103581 W DE0103581 W DE 0103581W WO 0228004 A3 WO0228004 A3 WO 0228004A3
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
communication
clock generator
user
delay times
Prior art date
Application number
PCT/DE2001/003581
Other languages
German (de)
French (fr)
Other versions
WO2002028004A2 (en
Inventor
Ulrich Hahn
Steffen Hellmich
Walter Moeller-Nehring
Original Assignee
Siemens Ag
Ulrich Hahn
Steffen Hellmich
Walter Moeller-Nehring
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag, Ulrich Hahn, Steffen Hellmich, Walter Moeller-Nehring filed Critical Siemens Ag
Publication of WO2002028004A2 publication Critical patent/WO2002028004A2/en
Publication of WO2002028004A3 publication Critical patent/WO2002028004A3/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • H04J3/0682Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging

Abstract

A measurement of delay times (ΔT) is achieved, whereby the clock generator transmits a telegram with a known telegram runtime to the communication user, by means of the communication network and starts a measurement process in connection with the above. The time measurement process is ended on receipt of an answer from the communication user and a delay time caused by the transmission calculated from the measured response time (TA), by means of the known telegram runtimes (TTL) and the reaction time of the user (TR). If a delay time for the outward and return leg is the same, then the above may be calculated using the following rule: ΔT = (TA - TR - TTL) /2
PCT/DE2001/003581 2000-09-29 2001-09-17 Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation WO2002028004A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10048335.6 2000-09-29
DE2000148335 DE10048335A1 (en) 2000-09-29 2000-09-29 Method for measuring delay times between a clock generator and a communication subscriber in a communication network with chaining topology, delay time compensation based thereon and corresponding communication network

Publications (2)

Publication Number Publication Date
WO2002028004A2 WO2002028004A2 (en) 2002-04-04
WO2002028004A3 true WO2002028004A3 (en) 2003-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003581 WO2002028004A2 (en) 2000-09-29 2001-09-17 Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation

Country Status (2)

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DE (1) DE10048335A1 (en)
WO (1) WO2002028004A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7366774B2 (en) * 2003-01-31 2008-04-29 Rockwell Automation Technologies, Inc. Network delay monitor for safety control networks
ATE536013T1 (en) 2003-04-28 2011-12-15 Siemens Ag COLLISION-FREE TRANSMISSION OF DATA TELEGRAMS USING AT LEAST ONE REPEATER
JP4873220B2 (en) * 2005-11-07 2012-02-08 横河電機株式会社 Field communication system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594705A (en) * 1983-03-31 1986-06-10 Tokyo Shibaura Denki Kabushiki Kaisha Bus-configured local area network with data exchange capability
EP0247026A2 (en) * 1986-05-16 1987-11-25 Austria Mikrosysteme International Gmbh Method for synchronizing the time clocks of computing devices connected to a communication medium, and the computing devices concerned
DE4105267A1 (en) * 1990-02-27 1991-08-29 Motorola Inc IMPROVED SYNCHRONIZATION TECHNOLOGY
US5124980A (en) * 1989-03-20 1992-06-23 Maki Gerald G Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable
US5550807A (en) * 1994-03-04 1996-08-27 Fujitsu Limited Method of measuring distance between equipments on lan and distance measuring apparatus
DE19710971A1 (en) * 1997-03-17 1998-09-24 Siemens Ag Propagation timing method for sending telegram between two subscribers in bus system
WO2001003344A1 (en) * 1999-01-15 2001-01-11 Airbiquity Inc. In-band signalling for synchronization in a voice communications network
WO2001050657A2 (en) * 1999-12-30 2001-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594705A (en) * 1983-03-31 1986-06-10 Tokyo Shibaura Denki Kabushiki Kaisha Bus-configured local area network with data exchange capability
EP0247026A2 (en) * 1986-05-16 1987-11-25 Austria Mikrosysteme International Gmbh Method for synchronizing the time clocks of computing devices connected to a communication medium, and the computing devices concerned
US5124980A (en) * 1989-03-20 1992-06-23 Maki Gerald G Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable
DE4105267A1 (en) * 1990-02-27 1991-08-29 Motorola Inc IMPROVED SYNCHRONIZATION TECHNOLOGY
US5550807A (en) * 1994-03-04 1996-08-27 Fujitsu Limited Method of measuring distance between equipments on lan and distance measuring apparatus
DE19710971A1 (en) * 1997-03-17 1998-09-24 Siemens Ag Propagation timing method for sending telegram between two subscribers in bus system
WO2001003344A1 (en) * 1999-01-15 2001-01-11 Airbiquity Inc. In-band signalling for synchronization in a voice communications network
WO2001050657A2 (en) * 1999-12-30 2001-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes

Also Published As

Publication number Publication date
DE10048335A1 (en) 2002-04-25
WO2002028004A2 (en) 2002-04-04

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