EP0326630B1 - Procédé de transmission de signaux de télécommande sur une seule fréquence porteuse entre émetteurs et récepteurs autonomes fonctionnant en multiplexage par répartition dans le temps et dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé de transmission de signaux de télécommande sur une seule fréquence porteuse entre émetteurs et récepteurs autonomes fonctionnant en multiplexage par répartition dans le temps et dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0326630B1
EP0326630B1 EP19880101463 EP88101463A EP0326630B1 EP 0326630 B1 EP0326630 B1 EP 0326630B1 EP 19880101463 EP19880101463 EP 19880101463 EP 88101463 A EP88101463 A EP 88101463A EP 0326630 B1 EP0326630 B1 EP 0326630B1
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EP
European Patent Office
Prior art keywords
transmitter
time
stations
station
command
Prior art date
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.)
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Application number
EP19880101463
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German (de)
English (en)
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EP0326630A1 (fr
Inventor
Bernhard Dipl.-Ing. Plum
Hans-Jürgen Dipl.-Ing. Wunderer
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.)
Theimeg Elektronikgerate & Co KG GmbH
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Theimeg Elektronikgerate & Co KG GmbH
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Application filed by Theimeg Elektronikgerate & Co KG GmbH filed Critical Theimeg Elektronikgerate & Co KG GmbH
Priority to DE8888101463T priority Critical patent/DE3871765D1/de
Priority to EP19880101463 priority patent/EP0326630B1/fr
Publication of EP0326630A1 publication Critical patent/EP0326630A1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/12—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by pulse characteristics in transmission link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/40—Remote control systems using repeaters, converters, gateways

Definitions

  • the invention relates to a method for transmitting remote control signals according to the preamble of claim 1 and a device for carrying out the method according to the preamble of claim 3.
  • Methods for remote control of mobile objects in which command telegrams are transmitted between the transmitter stations and the mobile objects using a single carrier frequency, are widely known.
  • the individual encoder stations can send to the addressed receiving stations cyclically one after the other, the individual encoder stations automatically synchronizing with the time slot of the specified multiplex transmission frame and those transmitter stations whose transmission times have not yet been reached within the time slot are excluded from transmission; see. DE-A-23 54 067.
  • a random generator can also be provided in each transmitter station, which determines the timing of the transmission of the command telegrams for the relevant transmitter station; see. DE-A-25 51 013.
  • the ranges can be optimized by optimizing the structure and circuit design of the radio remote controls and the transmitting and receiving antennas are enlarged, but do not prevent that undesired radio interruptions occur in the transmission system over longer ranges, which, due to the requirements of the existing safety regulations, result in the locomotives to be remotely switched off.
  • the experimental use of so-called active / passive antenna reflectors instead of the usual rod antennas led to corresponding experiences.
  • additional amplifier stations of the type of relay stations are to be set up for remote control of locomotives in the field. These amplifier stations are intended to receive the signals of the portable radio remote control transmitters - frequency F1 - and additionally transmit them on another frequency - frequency F2.
  • two separate high-frequency receivers must be provided for each receiver on the locomotives to be remote-controlled, so that the downstream receiver evaluation circuit can receive the signals from the portable radio remote control transmitter - F1 - and the signals - F2 - from the repeater station at the same time.
  • the invention is therefore based on the object of increasing the range between the transmitters and receivers of such radio remote control devices by simple technical measures using a single transmission frequency.
  • one or more so-called receive-transmit (repeater) stations are provided distributed in the area within which the locomotives to be remote-controlled can be moved.
  • a repeater station receives the signals from the radio remote control transmitters and transmits them again at the same frequency with a time delay.
  • the portable radio remote control transmitters and the repeater station belong to a common time division multiplex system, so that the transmissions of the radio remote control transmitters cannot be disturbed and the individual command telegrams are transmitted at different times according to a predetermined scheme.
  • the repeater station which automatically positions itself in this time-division multiplex system and adjusts its transmission time for the repeated transmission of a received command telegram in such a way that it is transmitted in a time gap within this time-division multiplex system.
  • FIG. 1 shows an overview of the components of a radio remote control system for the remote control of locomotives with a receive-transmit (repeater) station MEREP.
  • Pending control commands in the form of command telegrams can be radioed from a number of portable transmitter stations S1 to Sn to locomotive receivers L1 to Ln, which are there received and converted into control signals for controlling the locomotive.
  • these signals are received by the repeater station MEREP, which sends these signals again to the locomotive receivers L1 to Ln within a time gap.
  • the mobile receiving stations are thus embodied here by the radio receivers arranged on the locomotives to be controlled remotely.
  • FIG. 2 shows the receive-transmit station according to the invention, designated by the reference number 3, also referred to as the repeater station MEREP, which has a receiver 4 for evaluating the command telegrams received via an antenna 7 and transmitted by one of the transmitter stations.
  • a delay circuit 6 and an evaluation circuit 9, to which the LF output signal of the high-frequency receiver 4 is present, are connected to the receiver.
  • the LF output signal is time-delayed via these switching elements and then transmitted again via an HF transmitter 5, the delay time of the delay circuit 6 corresponding at least to the transmission time for the command telegram to be transmitted in the relevant transmitter station.
  • the command telegram pending at the output of the HF receiver 4 is simultaneously fed to the delay element 6 and the evaluation circuit 9 and evaluated there. If it is determined in the evaluation circuit 9 that the received command telegram has an identifier S to be described, the repeater station recognizes that the received command telegram should be sent again. Via the evaluation circuit 9, the RF transmitter 5 is then released in the for the renewed Sending this command telegram provided, determined by the delay element 6 time gap in the time schedule of the time division multiplex system.
  • the additional identifier S can be generated in the transmitter stations, for example, in such a way that a switch S-MEREP is located in the keypad of the command telegram input device (not shown here) is provided, which is to be operated by the operator when this detects range problems.
  • the additional identifier can also be generated by certain combinations of commands. In such a case, the S-MEREP switch is then omitted.
  • FIG. 3 shows a further embodiment of the MEREP repeater station.
  • this includes a transmission timing control 10 which controls a command message memory 8.
  • the command telegram pending at the output of the HF receiver 4 is stored in the memory 8 and at the same time fed to the transmission timing controller 10. There, the transmission time of the MEREP transmitter 5 is determined and the transmission is initiated by simultaneously giving the transmission release to the HF transmitter 5 and the command for reading out the stored command telegram to the memory 8.
  • the transmission timing control selects the transmission timing so that the time division multiplex system to which the transmitters S1 to Sn belong is not disturbed.
  • FIGS. 1 and 2 The working of the device according to FIGS. 1 and 2 is explained below with reference to the pulse diagram according to FIG. 4, which is based on an asynchronous radio remote control method according to DE 23 51 013 mentioned at the beginning. The same applies to other radio remote control methods, such as. B. the synchronous according to DE 23 54 067 also mentioned at the beginning.
  • Such a time-division multiplex system has a random generator in each transmitter station, which determines the time sequence for the transmission of the command telegrams for the respective transmitter station.
  • FIG. 4 shows the pulse diagram over the time course of the rectangular oscillations of pseudo-random generators PZRG from two transmitter stations and the transmission times of the command telegrams S1 and S2. The transmissions t s take place there only if two logical ONE appear after a 0-1 transition of the pseudo-random rectangular sequence PZRG that occurred immediately before. A further transmission is blocked for the time t BLOCKING.
  • the command telegram received from the transmitter station S2 is now evaluated. Due to the existing additional identifier S, which was decoded from the command telegram, the delay circuit 6 is triggered, which embodies a fixed delay time. After the delay time of the delay circuit 6 the command telegram is made available to the transmitter 5 for transmission and sent as soon as the evaluation circuit 9 has given the release.
  • the additional programs are identified in FIG. 4 by the reference symbol 11 and take place immediately after the programs t sj and t sj + 1 , ie the delay time of the delay circuit 6 is only slightly longer than the transmission time of S2.
  • the two pulse transmission diagrams of the transmitters S1 and S2 in FIG. 5 correspond to those of FIG. 4.
  • a pulse transmission diagram of the receive-transmit station MEREP 1 is shown, the MEREP 1 station also being in the area of influence of the two transmitters S1 and S2 of the example according to Figure 4 should work.
  • the transmission-time control of the reception-transmission station works according to the same time-division multiplex basic scheme that the two transmitters obey, that is to say the transmission-time control 10 in principle also contains a pseudo-random generator PZRGM 2 with the function as previously explained for the purpose of Figure 4 described.
  • the associated pulse-rectangular curve PZRGM 2 is shown in FIG. 5.
  • the command telegrams t sj and t sj + 1 are evaluated in the transmission timing controller 10 and released for retransmission via the transmitter 5 of the receiving-transmitting station MEREP (t sM and t sM + 1 ), since in the example shown the command telegram has the additional identifier S has.
  • the pulse transmission diagrams t sM and t sM + 1 are denoted in FIG. 5 by the reference symbol 11.
  • the transmission times control 10 thus determines the transmission times t sM and t sM + 1 on the basis of the pseudo-random generator according to the pulse diagram PZRGM 2. After reception of t sj and t sj + 1 , a retransmission takes place if immediately after the 0-1- Transition of the pulse diagram PZRGM 2 two logical ones are present, as already described at the beginning.
  • the transmission time of the repetition by the receiving-transmitting station is determined by the time division multiplex system of the transmission timing control and not by a delay circuit with a fixed time delay as in the embodiment according to FIG. 2 and can therefore be used Adjust time-division multiplex scheme automatically.
  • the transmission timing control 10 can also be carried out according to principles other than the time division basic scheme of the transmitters S1 to Sn, such as statistical methods, mathematical methods, monitoring of the radio channel, etc. Other methods are particularly useful when the time division basic diagram of the Radio remote control transmitter in the sphere of influence of the receiving-transmitting station MEREP is not known.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Selective Calling Equipment (AREA)

Claims (8)

  1. Procédé de transmission de signaux de télécommande sous la forme de télégrammes d'ordres transmis sur la même fréquence porteuse, entre des stations émettrices (S1 à Sn) et une ou plusieurs stations réceptrices (L1 à Ln) autonomes et travaillant en multiplexage par répartition dans le temps, caractérisé en ce que les télégrammes d'ordres émis par les stations émettrices (S1 à Sn) sont retransmis de nouveau, avec un décalage dans le temps par rapport à la station émettrice initiale (S1 à Sn) dans un système à tranche de temps, par au moins une autre station relais émettrice (MEREP), décalée en position par rapport à la station émettrice initiale (S1 à Sn), station relais (MEREP) recevant ces télégrammes d'ordres en même temps que la ou les stations réceptrices (L1 à Ln).
  2. Procédé suivant la revendication 1, caractérisé en ce que, dans la station émettrice initiale (S1 à Sn), il est attribué aux télégrammes d'ordres à répéter un code d'identification.
  3. Dispositif pour la mise en oeuvre du procédé de la revendication 1, comportant des stations émettrices (S1 à Sn), équipées d'émetteurs HF, et comportant des stations réceptrices (L1 à Ln), équipées chacune d'un récepteur HF, étant entendu que chaque station émettrice (S1 à Sn) présente un dispositif d'entrée des instructions et un circuit de commande pour traiter les informations et pour déterminer l'instant d'émission, et étant entendu que les stations réceptrices (L1 à Ln) présentent des circuits de commande dans le but de recevoir les télégrammes d'ordres associés à eux en fonction de marques d'identifications, à l'intérieur du système à tranche de temps, caractérisé en ce que, sur le terrain, entre les stations émettrices (S1 à Sn) et les stations réceptrices (L1 à Ln), il est prévu au moins une station relais réceptrice-émettrice (MEREP) recevant chaque fois les télégrammes d'ordre émis et les retransmettant de nouveau chaque fois, avec un décalage dans le temps dans un système à tranche de temps, cette station relais réceptrice-émettrice (MEREP) présentant un récepteur HF (4) et un émetteur HF (5) ainsi qu'un circuit de commande (9, 10) retardateur, pour émettre les télégrammes d'ordres reçus des stations émettrices, décalés avec retard dans le temps.
  4. Dispositif suivant la revendication 3, caractérisé en ce que, dans la station relais réceptrice-émettrice (MEREP), au circuit d'interprétation (9) est associé un circuit retardateur (6) qui, lorsqu'il est en possession d'une marque d'identification (S) dans le télégramme d'ordres, libère, après un décalage dans le temps constant, l'émetteur HF (5) pour la réémission décalée du télégramme d'ordre qui a été reçu.
  5. Dispositif suivant la revendication 3, caractérisé en ce que la station relais réceptrice-émettrice (MEREP) présente une commande du point d'émission (10) interprétant une information du télégramme d'ordre, et libérant l'émetteur HF (5), en fonction de l'interprétation faite de l'information, pour réémettre avec décalage le télégramme d'ordre reçu, avec un décalage dans le temps, dans un système à tranche de temps.
  6. Dispositif suivant la revendication 5, caractérisé en ce que la station relais réceptrice-émettrice (MEREP) présente une mémoire (8) pour les télégrammes d'ordre, enregistrant chaque télégramme d'ordre concerné reçu, et agissant en combinaison avec la commande de l'instant d'émission (10).
  7. Dispositif suivant la revendication 3, caractérisé en ce qu'a ce dispositif d'entrée des ordres de chacune de ces stations émettrices (S1 à Sn) est associé un clavier à fonction programmée (MEREP) dans un but de marquage du télégramme d'ordre à émettre, pour sa transmission retardée dans le temps par la station réceptrice-émettrice (MEREP).
  8. Dispositif suivant la revendication 3, caractérisé en ce que le code d'identification supplémentaire (S) est matérialisé par une combinaison d'ordres dans le télégramme d'ordre.
EP19880101463 1988-02-02 1988-02-02 Procédé de transmission de signaux de télécommande sur une seule fréquence porteuse entre émetteurs et récepteurs autonomes fonctionnant en multiplexage par répartition dans le temps et dispositif pour la mise en oeuvre du procédé Expired - Lifetime EP0326630B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8888101463T DE3871765D1 (de) 1988-02-02 1988-02-02 Verfahren und einrichtung zur durchfuehrung des verfahrens zur uebertragung von fernsteuersignalen mittels einer einzigen traegerfrequenz zwischen im zeitmultiplex arbeitenden geber- und autonomen empfangsstationen.
EP19880101463 EP0326630B1 (fr) 1988-02-02 1988-02-02 Procédé de transmission de signaux de télécommande sur une seule fréquence porteuse entre émetteurs et récepteurs autonomes fonctionnant en multiplexage par répartition dans le temps et dispositif pour la mise en oeuvre du procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880101463 EP0326630B1 (fr) 1988-02-02 1988-02-02 Procédé de transmission de signaux de télécommande sur une seule fréquence porteuse entre émetteurs et récepteurs autonomes fonctionnant en multiplexage par répartition dans le temps et dispositif pour la mise en oeuvre du procédé

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EP0326630A1 EP0326630A1 (fr) 1989-08-09
EP0326630B1 true EP0326630B1 (fr) 1992-06-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517091C1 (de) * 1995-05-15 1996-04-04 Stein Gmbh Einrichtung von Relaisstationen und Empfangsstationen

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
DE60004801T2 (de) 1999-03-25 2004-07-01 Canac Inc., Montreal Verfahren und vorrichtung zur adresszuweisung an komponenten in einer steueranlage
CA2266998C (fr) 1999-03-25 2008-01-15 Canac Inc. Methode et dispositif permettant d'assigner des adresses a des composants d'un systeme de commande
US7203228B2 (en) 1999-03-30 2007-04-10 Cattron Intellectual Property Corporation Method and apparatus for assigning addresses to components in a control system
US7792089B2 (en) 2002-07-31 2010-09-07 Cattron-Theimeg, Inc. System and method for wireless remote control of locomotives
US6863247B2 (en) 2003-05-30 2005-03-08 Beltpack Corporation Method and apparatus for transmitting signals to a locomotive control device
US7484169B2 (en) * 2006-02-15 2009-01-27 General Electric Company Implicit message sequence numbering for locomotive remote control system wireless communications

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US3160711A (en) 1960-06-04 1964-12-08 Bell Telephone Labor Inc Nonsynchronous time-frequency multiplex transmission system
DE2351013B2 (de) 1973-10-11 1977-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Nachrichtenuebermittlungssystem
DE2354067C3 (de) 1973-10-29 1982-02-04 Theimeg-Elektronikgeräte GmbH & Co, 4060 Viersen Verfarhen und Einrichtung zum Fernsteuern von Objekten
US4230989A (en) * 1979-05-11 1980-10-28 Engineered Systems, Inc. Communications system with repeater stations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517091C1 (de) * 1995-05-15 1996-04-04 Stein Gmbh Einrichtung von Relaisstationen und Empfangsstationen

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EP0326630A1 (fr) 1989-08-09
DE3871765D1 (de) 1992-07-09

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