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WO2023036915A1 - Système télécommandé et procédé de fonctionnement d'un système télécommandé - Google Patents

Système télécommandé et procédé de fonctionnement d'un système télécommandé Download PDF

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Publication number
WO2023036915A1
WO2023036915A1 PCT/EP2022/075076 EP2022075076W WO2023036915A1 WO 2023036915 A1 WO2023036915 A1 WO 2023036915A1 EP 2022075076 W EP2022075076 W EP 2022075076W WO 2023036915 A1 WO2023036915 A1 WO 2023036915A1
Authority
WO
WIPO (PCT)
Prior art keywords
control unit
system component
controlled
signal
confirmation
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.)
Ceased
Application number
PCT/EP2022/075076
Other languages
German (de)
English (en)
Inventor
Niels BRANDENBURGER
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
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 Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Publication of WO2023036915A1 publication Critical patent/WO2023036915A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a remote-controlled system and a method for operating a remote-controlled system.
  • Remote-controlled systems are known from a wide variety of technical fields. As a rule, these include at least one control unit and at least one system component to be controlled. If the system component is not able to carry out its task independently using its own sensors, it must be monitored by the control unit or a human user (operator) so that the control unit or the human user can intervene at any time. It is known that so-called dead man's switches are used. To do this, the human user must perform an action (e.g. hold down a switch) continuously or when prompted to signal his presence and attention. In the absence of such a signal, the system component stops or switches to a safe state. The same applies if the monitoring is carried out automatically by the control unit alone without a human user.
  • an action e.g. hold down a switch
  • the invention is based on the technical problem of further improving a remote-controlled system and providing a suitable method for operating such a remote-controlled system.
  • the remote-controlled system comprises at least one first control unit and at least one system component to be controlled, wherein the at least one control unit and the at least one system component to be controlled are spatially separated and are connected to one another via a data connection, wherein the at least one first control unit is designed such that a status signal to be transmitted to the system component to be controlled, the system component being designed in such a way receiving the status signal and inferring from it an existing data connection, the first control unit being further designed to transmit control signals and/or confirmation signals to the system component, the system component being designed to adjust an operating state differently if the status signal is not received or the control signals and/or an acknowledgment signal is not received.
  • the system component can first be switched to an operating mode in which an emergency shutdown is prepared but not yet carried out, whereas if there is no confirmation signal, an emergency shutdown takes place immediately.
  • the basic idea is that the data connection can always be briefly interrupted for various reasons. The possibility of being able to distinguish between the absence of a confirmation signal and whether this is due to the data connection or the absence of the confirmation signal due to a lack of action by the user or the control unit allows the system component to react more appropriately; in particular, this prevents the system component from being switched off too frequently .
  • the data link is designed as a radio link or generally as a wireless data link.
  • radio connections in particular, there may be dead spots or a radio channel may be overloaded due to local conditions.
  • the system component can localize itself (e.g. using a GPS receiver) and check whether it is currently in an area with radio interference. An operating state of the system component can thus be graded even more finely, since, for example, in the event of a data break in a marked dead spot, a new data connection can be expected when the system component moves away from the dead spot again. If, on the other hand, the data processing breaks down in an area where reception is usually good, this indicates a long-term problem with the data connection.
  • the system component is designed in such a way to transmit a request signal to the first control unit, the first control unit generating a request signal for a specific confirmation to be entered by a human user, the specific confirmation being sent to the System component is transferred.
  • the acknowledgment signal is thus only transmitted when requested by the system component.
  • the confirmation signal it is also possible for the confirmation signal to be transmitted periodically at fixed times. In such a case, a request signal can be dispensed with.
  • system component is designed in such a way that it transmits a second request signal to the first control unit, with which the first control unit is requested to send the status signal.
  • This second request signal has several advantages.
  • the data connection is checked in both directions and, on the other hand, the runtime of the data can be determined in this way.
  • the second request signal is preferably sent immediately before the first request signal.
  • the data connection can thus be checked immediately before the first request signal is sent out.
  • the remote-controlled system is designed in such a way that the status signals are transmitted more frequently than the confirmation signals.
  • a preferred area of application is the remote control of a train, where the train is the system component to be remotely controlled.
  • the 1 shows a remote-controlled system 1 that includes a first control unit 2 and a system component 3 that is to be remote-controlled.
  • the first control unit 2 and the system component 3 to be remotely controlled are spatially separated and connected to one another via a radio-based data connection 4 .
  • the first control unit 2 and the system component 3 are each designed with at least one antenna 5, 6.
  • the system component 3 has a second control unit 7 , at least one actuator 8 and a memory 9 .
  • the second control unit 7 can set different operating states of the system component 3 (e.g. a adjust speed by decelerating or accelerating).
  • the first control unit 2 is connected to a display and operating device 10 which has at least one input element 11 .
  • a human user can enter control commands for the system component 3 via the display and operating device 10 , with the first control unit 2 then processing the control commands and transmitting them to the system component 3 via the data connection 4 .
  • the second control unit 7 of the system component 3 then receives the control commands or control signals and controls the actuator 8 accordingly.
  • the system component 3 sends a second request signal A2 to the first control unit 2, which then sends back a status signal S as a response. If the second control unit 7 then receives the status signal S, the data connection 4 is functional. Alternatively or additionally, the first control unit 2 can also send out status signals S periodically or situationally without a second request signal A2. If the second control unit 7 does not receive an expected status signal S, then the data connection 4 is disrupted, i.e. the human user cannot currently control the system component 3. In this case, the second control unit 7 can first determine where the system component 3 is currently located, for which purpose data from a position determination device 12 are evaluated.
  • a map from memory 9 is then used to check whether the current position frequently has radio interference, it also being possible to estimate from the map data how long the data connection could remain faulty.
  • the operating state of the system component 3 is adjusted. In particular, if the data connection 4 breaks off unexpectedly or lasts longer, it is possible to switch to emergency operation. On the other hand, if the data break was to be expected and will probably not last longer, the operating state is maintained or preconditioning is carried out in order, for example, to be able to carry out emergency operation more quickly. For example, the speed can be moderately throttled for this purpose.
  • the second control unit 7 sends a first request signal A1 to the first control unit 2.
  • the first control unit 2 receives the first request signal A1 and generates a request signal UP, with which the human user ( operator) is asked to make a specific confirmation in order to ensure that he is present and attentive. For example, the user is asked to press the input element 11 for a specific time (possibly several times). This specific confirmation from the user is recorded by the first control unit 2 and a confirmation signal B is transmitted to the system component 3 or the second control unit 7 . If the second control unit 7 then receives the confirmation signal B, the remote control can be continued unchanged.
  • the second control unit 7 controls the actuators 8 in such a way that emergency operation is set as the operating state and the system component 3 is stopped, for example.

Landscapes

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

Abstract

L'invention se rapporte à un système télécommandé (1) comprenant au moins une première unité de commande (2) et au moins un composant de système (3) devant être commandé : ladite unité de commande (2) et ledit composant de système (3) devant être commandé sont séparés dans l'espace et sont connectés l'un à l'autre par l'intermédiaire d'une connexion de données (4) ; ladite unité de commande (2) est conçue de manière à émettre un signal d'état (S) vers le composant du système (3) devant être commandé ; le composant du système (3) est conçu de manière à recevoir le signal d'état (S) et pour déduire la présence d'une connexion de données (4) à partir de ce dernier ; la première unité de commande (2) est également conçue de manière à émettre des signaux de commande et/ou des signaux d'accusé de réception (B) vers le composant du système (3) ; le composant du système (3) est conçu de manière à adapter un état fonctionnel de manière différente si le signal d'état (S) n'est pas reçu ou si les signaux de commande et/ou un signal d'accusé de réception (b) n'est/ne sont pas reçu(s). L'invention se rapporte également à un procédé associé.
PCT/EP2022/075076 2021-09-13 2022-09-09 Système télécommandé et procédé de fonctionnement d'un système télécommandé Ceased WO2023036915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021210076.7 2021-09-13
DE102021210076.7A DE102021210076A1 (de) 2021-09-13 2021-09-13 Ferngesteuertes System und Verfahren zum Betreiben eines ferngesteuerten Systems

Publications (1)

Publication Number Publication Date
WO2023036915A1 true WO2023036915A1 (fr) 2023-03-16

Family

ID=83355483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/075076 Ceased WO2023036915A1 (fr) 2021-09-13 2022-09-09 Système télécommandé et procédé de fonctionnement d'un système télécommandé

Country Status (2)

Country Link
DE (1) DE102021210076A1 (fr)
WO (1) WO2023036915A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2833334A1 (fr) * 2013-08-02 2015-02-04 Vermeer Manufacturing Company Système de télécommande
WO2021171056A1 (fr) * 2020-02-24 2021-09-02 Telefonaktiebolaget Lm Ericsson (Publ) Commutateur automatique virtuel adaptatif pour le fonctionnement sûr de systèmes autonomes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344157A (en) 1998-11-28 2000-05-31 New Holland Remote control of an agricultural vehicle.
EP2958711B1 (fr) 2013-02-21 2017-06-07 ABB Schweiz AG Système de robot industriel comprenant une unité d'activation et une pluralité de dispositifs d'usage général, et procédé de commande dudit système de robot
US9524637B1 (en) 2015-06-15 2016-12-20 Eaton Corporation Remote control apparatus having emergency stop feature with redundancy, and associated method
JP6514258B2 (ja) 2017-03-31 2019-05-15 ファナック株式会社 ロボットシステム
DE202017104769U1 (de) 2017-08-09 2017-10-06 Thomas Haug Fernsteuerungsanordnung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2833334A1 (fr) * 2013-08-02 2015-02-04 Vermeer Manufacturing Company Système de télécommande
WO2021171056A1 (fr) * 2020-02-24 2021-09-02 Telefonaktiebolaget Lm Ericsson (Publ) Commutateur automatique virtuel adaptatif pour le fonctionnement sûr de systèmes autonomes

Also Published As

Publication number Publication date
DE102021210076A1 (de) 2023-03-16

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