WO2014187893A1 - Boîtier de redondance (redbox) sans fil à diviseur temporel - Google Patents

Boîtier de redondance (redbox) sans fil à diviseur temporel Download PDF

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Publication number
WO2014187893A1
WO2014187893A1 PCT/EP2014/060531 EP2014060531W WO2014187893A1 WO 2014187893 A1 WO2014187893 A1 WO 2014187893A1 EP 2014060531 W EP2014060531 W EP 2014060531W WO 2014187893 A1 WO2014187893 A1 WO 2014187893A1
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WO
WIPO (PCT)
Prior art keywords
time
transmission
wireless
channels
parallel
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Legal status (The legal status 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 status listed.)
Ceased
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PCT/EP2014/060531
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German (de)
English (en)
Inventor
Markus Rentschler
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.)
Hirschmann Automation and Control GmbH
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Hirschmann Automation and Control GmbH
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Application filed by Hirschmann Automation and Control GmbH filed Critical Hirschmann Automation and Control GmbH
Publication of WO2014187893A1 publication Critical patent/WO2014187893A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity

Definitions

  • Fig. 1 An important element in such a diverse transmission system (Fig. 1) is the so-called “splitter” on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • splitter an important element in such a diverse transmission system (Fig. 1) is the so-called “splitter” on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • splitter on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • D.G. Brennan "Linear diversity combining techniques," Proc. IRE, vol.47, no.1, pp.1075-1102, June 1959, distinguished between phase, space, frequency and time diversity.
  • the signal transmitted is a longer bit or byte sequence over a specific period of time, which can be defined as a signal unit to be considered.
  • this signal unit can be an Ethernet packet or an 802.11 packet in terms of content.
  • the so-called “timing combiner” can be defined as the derivative of the "Selection Combiner” according to [BRENNAN] as follows: When transmitting such longer signal units (eg Ethernet packets), the time of arrival of a copy of the complete and integral signal unit may take place at distinctly different times on the receiver side at differently disturbed parallel transmission channels, eg due to retransmissions on a single one of the radio channels.
  • the "Timing Combiner” as the derivative of the “Selection Combiner” makes the forwarding decision on the first completely and integerly received copy of the signal unit.
  • the main advantage of this method is a statistical improvement of the timing with respect to the latency variability (jitter), since always the earlier arriving signal unit (eg Ethernet packet) "wins".
  • timing combiner is defined for the type of a “selection combiner”, which mainly deals with signal units consisting of longer byte sequences, e.g. Data packets that are transmitted via parallel redundant transmission links with significantly different timing, such as wireless radio transmission links.
  • Patent WO / 06053459 "Reception of redundant and non-redundant frames" by ABB Switzerland Ltd., Corporate Research, Segelhofstr 1 K, CH-5405 Baden, a mechanism is described, with which an uninterruptible redundancy can be achieved, in which the data traffic Duplicated between terminals over two parallel redundant wired networks is transmitted.
  • the object of this invention is high availability in case of failure of one of the parallel networks which can take place with this method without any disturbance of the data traffic.
  • a wireless variant of a "Redundancy Box" (RedBox) is now defined as having, in each case, a wireless communication interface instead of Ethernet interfaces for the two parallel redundant networks ( Figure 3) .
  • These wireless interfaces can be implemented, for example, by WLAN in accordance with IEEE 802.1 1 be realized, but also other wireless standards are used.
  • This invention should make it possible, for example, to technically implement the method described in DE 10 2009 053 868 A1 for secure wireless data transmission.
  • the property is used that occur with high probability no simultaneous transmission interference in diverse parallel redundant wireless connections and therefore - in contrast to singular wireless effetsungskanälen- the packet loss probability is minimized by such a transfer system such that one can speak of a secure wireless transmission
  • the "timing combiner" feature also achieves a statistical improvement in transmission timing since the faster packet always wins on the redundant channels
  • Figure 4 shows an exemplary PRP WLAN system while referring to Figure 5. illustrates the benefits achieved in receive timing with packet loss on one of the redundant channels.
  • this method can be further improved by allowing the use of time diversity in addition to the frequency and space diversity possible through parallel redundancy.
  • Time diversity is achieved by sending one of the parallel redundant signals with a time delay. This can be achieved by a delay element, such as a queue in one of the parallel redundant transmission paths ( Figure 3).
  • the resulting advantage lies in the mastery of broadband, simultaneous disruptions at all parallel redundant transmission channels.
  • the skew increases the likelihood that one of the parallel redundant packets will still be transmitted.
  • the splitter behavior can be adapted to the radio interference behavior.
  • This setting of the delay time can be done either manually or by means of a self-regulating method in that the receiving side evaluates the packet loss rate on the parallel redundant channels and adjusts the optimal delay time on the transmitting side by means of a feedback protocol.
  • the term “tinning splitter” is defined as the type of diversity splitter which transmits signal units over parallel redundant transmission links, such as wireless radio links can be delayed. This time offset can also be adjustable and be adjusted during operation with a control algorithm (“delay control”) present in the receiving system (FIG. 7).
  • a delay element may be provided in one or more of the parallel redundant channels on the transmission side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé de transmission sans fil par deux voies de transmission (canaux) indépendantes, d'une source de données vers un terminal récepteur et/ou inversement, caractérisé en ce que la transmission entre les canaux redondants parallèles est effectuée avec un décalage temporel.
PCT/EP2014/060531 2013-05-24 2014-05-22 Boîtier de redondance (redbox) sans fil à diviseur temporel Ceased WO2014187893A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209732 2013-05-24
DE102013209732.8 2013-05-24

Publications (1)

Publication Number Publication Date
WO2014187893A1 true WO2014187893A1 (fr) 2014-11-27

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PCT/EP2014/060531 Ceased WO2014187893A1 (fr) 2013-05-24 2014-05-22 Boîtier de redondance (redbox) sans fil à diviseur temporel

Country Status (2)

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DE (1) DE102014209745A1 (fr)
WO (1) WO2014187893A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3211962A1 (fr) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Systeme de radiocommunication pour un systeme d'automatisation industriel, son procede de fonctionnement et station emettrice/receptrice radio
EP3211838A1 (fr) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Systeme de communication industriel pouvant fonctionner de maniere redondante, son procede de fonctionnement et station emettrice/receptrice radio
EP3240356A1 (fr) * 2016-04-29 2017-11-01 Siemens Aktiengesellschaft Systeme de communication industriel pouvant fonctionner de maniere redondante, son procede de fonctionnement et poste d'abonné radio
EP3301523A1 (fr) * 2016-09-30 2018-04-04 Siemens Aktiengesellschaft Système de communication pouvant fonctionner de manière redondante pour un système d'automatisation industriel et procédé de ce fonctionnement
EP3518471A1 (fr) * 2018-01-24 2019-07-31 Siemens Aktiengesellschaft Système de radiocommunication pour un système d'automatisation industrielle et procédé de fonctionnement d'un système de radiocommunication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665395A (en) * 1967-06-29 1972-05-23 Siemens Ag Method of data transmission
WO2000011806A1 (fr) * 1998-08-25 2000-03-02 Ericsson Inc. Systeme de radiocommunications a transmission en diversite selective, procede d'activation de ce type de transmission, et reseau de radiocommunications faisant appel auxdits systeme et procede
EP1359684A1 (fr) * 2002-04-30 2003-11-05 Motorola Energy Systems Inc. Transmission sans fil utilisant un réseau d'antennes adaptatif
US20030224729A1 (en) * 2002-05-28 2003-12-04 Arnold Kenneth David Interference resistant wireless sensor and control system
WO2006053459A1 (fr) 2004-11-16 2006-05-26 Abb Research Ltd Reception de trames redondantes et non redondantes
DE102009053868A1 (de) 2008-11-22 2010-06-17 Hirschmann Automation And Control Gmbh Netzwerk mit Steuergerät und Sensor/Aktor mit zwei redundanten Übertragungsstrecken

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665395A (en) * 1967-06-29 1972-05-23 Siemens Ag Method of data transmission
WO2000011806A1 (fr) * 1998-08-25 2000-03-02 Ericsson Inc. Systeme de radiocommunications a transmission en diversite selective, procede d'activation de ce type de transmission, et reseau de radiocommunications faisant appel auxdits systeme et procede
EP1359684A1 (fr) * 2002-04-30 2003-11-05 Motorola Energy Systems Inc. Transmission sans fil utilisant un réseau d'antennes adaptatif
US20030224729A1 (en) * 2002-05-28 2003-12-04 Arnold Kenneth David Interference resistant wireless sensor and control system
WO2006053459A1 (fr) 2004-11-16 2006-05-26 Abb Research Ltd Reception de trames redondantes et non redondantes
DE102009053868A1 (de) 2008-11-22 2010-06-17 Hirschmann Automation And Control Gmbh Netzwerk mit Steuergerät und Sensor/Aktor mit zwei redundanten Übertragungsstrecken

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
D.G. BRENNAN: "Linear diversity combining techniques", PROC. IRE, vol. 47, no. 1, June 1959 (1959-06-01), pages 1075 - 1102
MARKUS RENTSCHLER ET AL: "Towards a reliable parallel redundant WLAN black channel", FACTORY COMMUNICATION SYSTEMS (WFCS), 2012 9TH IEEE INTERNATIONAL WORKSHOP ON, IEEE, 21 May 2012 (2012-05-21), pages 255 - 264, XP032204362, ISBN: 978-1-4673-0693-5, DOI: 10.1109/WFCS.2012.6242573 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108702317B (zh) * 2016-02-29 2019-10-08 西门子股份公司 能冗余地运行的工业化的通信系统、用于其运行的方法和无线接收站
EP3211838A1 (fr) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Systeme de communication industriel pouvant fonctionner de maniere redondante, son procede de fonctionnement et station emettrice/receptrice radio
WO2017148627A1 (fr) * 2016-02-29 2017-09-08 Siemens Aktiengesellschaft Système de communication industriel utilisable de manière redondante, procédé de fonctionnement de celui-ci et station d'émission-réception radioélectrique
WO2017148626A1 (fr) * 2016-02-29 2017-09-08 Siemens Aktiengesellschaft Système de communication radio pour un système d'automatisation industriel, son procédé de fonctionnement et station de radio émetteur-récepteur
CN108702804B (zh) * 2016-02-29 2020-10-27 西门子股份公司 用于工业自动化系统的无线通信系统、用于其运行的方法
EP3211962A1 (fr) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Systeme de radiocommunication pour un systeme d'automatisation industriel, son procede de fonctionnement et station emettrice/receptrice radio
US10484238B2 (en) 2016-02-29 2019-11-19 Siemens Aktiengesellschaft Radio communication system for an industrial automation system, method for operating said radio communication system, and radio transceiver station
US10484199B2 (en) 2016-02-29 2019-11-19 Siemens Aktiengesellschaft Redundantly operable industrial communication system, method for operating the communication system, and radio transceiver station
CN108702804A (zh) * 2016-02-29 2018-10-23 西门子股份公司 用于工业自动化系统的无线通信系统、用于其运行的方法和无线收发站
CN108702317A (zh) * 2016-02-29 2018-10-23 西门子股份公司 能冗余地运行的工业化的通信系统、用于其运行的方法和无线接收站
WO2017186404A1 (fr) * 2016-04-29 2017-11-02 Siemens Aktiengesellschaft Système de communication industriel utilisable de manière redondante, procédé permettant de faire fonctionner ledit système et station d'abonné radio
US10405185B2 (en) 2016-04-29 2019-09-03 Siemens Aktiengesellschaft Redundantly operable industrial communication system, method for operation thereof and radio subscriber station
CN109076635A (zh) * 2016-04-29 2018-12-21 西门子股份公司 可冗余运行的工业通信系统、用于其运行的方法和无线电-用户站
CN109076635B (zh) * 2016-04-29 2020-08-21 西门子股份公司 可冗余运行的工业通信系统、方法和无线电-用户站
EP3240356A1 (fr) * 2016-04-29 2017-11-01 Siemens Aktiengesellschaft Systeme de communication industriel pouvant fonctionner de maniere redondante, son procede de fonctionnement et poste d'abonné radio
US10298726B2 (en) 2016-09-30 2019-05-21 Siemens Aktiengesellschaft Redundantly operable communication system for an industrial automation system and method for operating the system
CN107888404A (zh) * 2016-09-30 2018-04-06 西门子公司 工业自动化系统的能冗余运行的通信系统和其运行方法
EP3301523A1 (fr) * 2016-09-30 2018-04-04 Siemens Aktiengesellschaft Système de communication pouvant fonctionner de manière redondante pour un système d'automatisation industriel et procédé de ce fonctionnement
EP3518471A1 (fr) * 2018-01-24 2019-07-31 Siemens Aktiengesellschaft Système de radiocommunication pour un système d'automatisation industrielle et procédé de fonctionnement d'un système de radiocommunication
WO2019145094A1 (fr) 2018-01-24 2019-08-01 Siemens Aktiengesellschaft Système de radiocommunication pour un système d'automatisation industrielle et procédé permettant de faire fonctionner un système de radiocommunication
CN111656737A (zh) * 2018-01-24 2020-09-11 西门子股份公司 用于工业自动化系统的无线电通信系统和用于运行无线电通信系统的方法
US11026119B2 (en) 2018-01-24 2021-06-01 Siemens Aktiengesellschaft Radio communication system for an industrial automation system and method for operating the radio communication system

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