EP3493175B1 - Method for coupling a second remote control unit with a first remote control unit - Google Patents

Method for coupling a second remote control unit with a first remote control unit Download PDF

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Publication number
EP3493175B1
EP3493175B1 EP18207744.6A EP18207744A EP3493175B1 EP 3493175 B1 EP3493175 B1 EP 3493175B1 EP 18207744 A EP18207744 A EP 18207744A EP 3493175 B1 EP3493175 B1 EP 3493175B1
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EP
European Patent Office
Prior art keywords
remote control
control unit
unit
transceiver
transmitting
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EP18207744.6A
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German (de)
French (fr)
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EP3493175A1 (en
Inventor
Oliver Göpner
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Jungheinrich AG
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Jungheinrich AG
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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
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/10—Power supply of remote control devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/20—Binding and programming of remote control devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/20—Binding and programming of remote control devices
    • G08C2201/21—Programming remote control devices via third means
    • 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 method is preferably used in connection with industrial trucks in which particularly high demands are placed on the availability of the remote control units.
  • a 1: 1 connection is provided between the remote control unit and the industrial truck. This uniqueness ensures that only a single remote control unit can issue commands from a distance to exactly one industrial truck. It is customary for the remote control units to use battery-operated control units that have to be charged for use of the industrial truck. Changing the assignment of remote control units to a transmitting and receiving unit of an industrial truck can be technically complex.
  • a system in which a vehicle can be controlled via a portable machine and a portable terminal.
  • the portable machine works here as a vehicle-specific key that can receive commands from the portable terminal and forward them to the vehicle.
  • the coupling between the portable machine and the portable terminal takes place directly via an NFC coupling between these devices.
  • the invention is based on the object of providing a method for coupling a second remote control that can be used easily and flexibly.
  • the method according to the invention provides for a second remote control unit to be coupled to a first remote control unit.
  • the first remote control unit is designed for a radio connection with a transmitting and receiving unit, as can be provided, for example, in an industrial truck.
  • the method according to the invention provides for a coupling of the first remote control unit to the transmitting and receiving unit for a radio link in front. After coupling the first remote control unit, signals, data and information can be exchanged between the first remote control unit and the transmitting and receiving unit by radio.
  • a unique address of the second remote control unit is transmitted to the transmitting and receiving unit via near-field communication.
  • the transmitting and receiving unit sends the unique address of the second remote control unit to the first remote control unit.
  • the coupling of the first remote control unit with the second remote control unit takes place via the sent unique address of the second remote control unit.
  • the second remote control unit transmits its unique address to the transmitting and receiving unit, which sends the unique address of the second remote control unit to the first remote control unit, so that the first remote control unit is coupled to the second remote control unit.
  • a command is sent from the second remote control unit to the transmitting and receiving unit of the industrial truck, the command being sent from the second remote control unit to the first remote control unit, which transmits the command via radio to the transmitting and receiving unit Receiving unit forwards.
  • the particular advantage of the method according to the invention is that the 1: 1 connection between the industrial truck and its transmitting and receiving unit with the first remote control unit remains.
  • the second remote control unit is coupled to the transmitting and receiving unit of the industrial truck via the first remote control unit.
  • the first remote control unit is fed by a battery or an accumulator.
  • the first remote control unit can be fed with its own energy supply for the intended operation.
  • the second remote control unit is equipped with an operating element which, when actuated, generates sufficient current for sending the command. Due to its structure without a battery or an accumulator as an energy store, the second remote control unit is not designed to permanently maintain a radio connection with the transmitter and receiver unit in the industrial truck. The current required for sending a signal or a command from the second remote control unit to the first remote control unit is generated by actuating the control element.
  • the first and second remote control units each have a module for near-field communication with the transmitting and receiving unit.
  • the module for near-field communication can be designed to be active with its own power supply or passive. In the case of passive training, the energy from the transmitter and receiver unit is transmitted to the module for near-field communication.
  • the first remote control unit couples with the transmitter and receiver unit via near-field communication, the first remote control unit sending its unique address to the transmitter and receiver unit.
  • the transmitting and receiving unit can assign the two unique addresses of the radio remote control units to one another in order to allow the signals from the first remote control unit to be passed on to the second remote control unit, with for this purpose, the unique address of the second remote control unit is forwarded to the first remote control unit.
  • the first remote control unit cancels the coupling with the second remote control unit if the first remote control unit had no radio connection with the transmitting and receiving unit for a predetermined period of time or the transmitting and receiving unit was switched off.
  • the first remote control unit deletes, for example, the unique address of the second remote control unit in its memory, so that communication is no longer possible in which commands from the second remote control unit are passed on to the transmitting and receiving unit of the industrial truck via the first remote control unit.
  • Fig. 1 shows an industrial truck 10, which is designed here as an example of a ride-on drawbar lift truck.
  • the vehicle 10 has a transmitting and receiving unit 12 which is designed, on the one hand, to communicate by radio over distances of a few meters and, on the other hand, to read out a unique address with the aid of near-field communication.
  • the transmitting and receiving unit 12 is also designed to have at least two one-to-one Record, save and assign addresses to each other.
  • the one-to-one addresses are, for example, so-called MAC addresses, where MAC stands for Media Access Control and specifies a unique identification for a device in a network.
  • a first remote control unit 14 is provided. During operation, the first remote control unit 14 sends and receives signals and commands from the transmitting and receiving unit 12 by radio 17.
  • the remote control unit 14 communicates with a second remote control unit 16, which is designed, for example, as a battery-free remote control unit 16.
  • the remote control unit 16 has an operating element 18 which, when actuated, generates electricity in order to send a signal 20 to the first remote control unit 14.
  • the communication structure Fig. 1 is in schematic view in Fig. 2 shown.
  • the first remote control unit 14 is equipped for a bidirectional radio link, for example via Bluetooth, with the transmitting and receiving unit 12 of the industrial truck.
  • the second remote control unit 16 which is equipped without an energy storage device, has a unique address MAC 2 and communicates directly 20 with the remote control unit 14.
  • the transmitting and receiving unit 12 A coupling of the remote control units 14, 16 is triggered in each case via near-field communication 24, 22.
  • the first remote control unit 14 is brought into the vicinity of the transmitting and receiving unit 12.
  • the transmitting and receiving unit 12 takes over the one-to-one address (MAC 1) of the first remote control unit 14; this address (MAC 1) is used to set up a Bluetooth radio link 17.
  • MAC 1 one-to-one address
  • the transmitting and receiving unit 12 is designed as a transmitting and receiving unit of an industrial truck for a 1: 1 connection.
  • the second remote control unit 16 is coupled to the first remote control unit 14 and not directly to the transmitter and receiver unit.
  • the second remote control unit 16 is connected to the transmitting and receiving unit 12 via a near-field communication 22.
  • the unique address of the second remote control unit 16 is stored in the transmitting and receiving unit 12.
  • the transmitting and receiving unit 12 sends the unique address (MAC 2) of the second remote control unit 16 to the first remote control unit 14 so that it can initiate a coupling process between the first and the second remote control unit. If the first and the second remote control unit are coupled, signals from the second remote control unit can be forwarded to the transmitting and receiving unit 12 via the first remote control unit.
  • the second remote control unit can be designed as a unit that can be fastened to the hand or the fingers and is also operated by the fingers of the same hand.
  • One possible embodiment provides, for example, that the second remote control unit is worn on the index and middle fingers like a ring and that the thumb is operated by pressing.
  • the first remote control unit 14 takes over the wireless communication with the transmitting and receiving unit 12 of the vehicle, for example in the form of radio commands or regular radio signals, so-called heartbeats.
  • the second remote control unit is used to To transmit operator commands to the first remote control unit so that it can then send the commands to the vehicle.
  • the second remote control unit is connected to the first remote control unit via one of the following radio technologies, such as zigbee, Bluetooth, 868 MHz for Europe, 902 MHz for USA / Canada or 928 MHz for Japan.
  • the second remote control unit cannot send any radio commands to the vehicle directly, since this is only designed for a 1: 1 connection with a remote control unit.
  • the second remote control unit 16 has an NFC module for exchanging the unique address (MAC 2) with the transmitting and receiving unit 12.
  • the vehicle only accepts operator commands from the second remote control unit 16 that is assigned to the vehicle by prior pairing with the first remote control unit 14. The assignment must also be ensured in the temporarily de-energized state of the battery-free second remote control unit after power is restored.

Description

Bevorzugt wird das Verfahren im Zusammenhang mit Flurförderzeugen eingesetzt, bei denen besonders hohe Anforderungen an die Verfügbarkeit der Fernbedieneinheiten zu stellen ist.The method is preferably used in connection with industrial trucks in which particularly high demands are placed on the availability of the remote control units.

Bei der Fernbedienung von Flurförderzeugen ist eine 1:1-Verbindung zwischen der Fernbedieneinheit und dem Flurförderzeug vorgesehen. Diese Eindeutigkeit stellt sicher, dass stets nur eine einzige Fernbedieneinheit genau einem Flurförderzeug Befehle aus der Entfernung erteilen kann. Für die Fernbedieneinheiten ist es üblich, dass hier akkubetriebene Bedieneinheiten eingesetzt werden, die für den Einsatz des Flurförderzeugs geladen sein müssen. Eine Änderung der Zuordnung von Fernbedieneinheiten zu einer Sende- und Empfangseinheit eines Flurförderzeugs kann sich technisch aufwendig gestalten.For the remote control of industrial trucks, a 1: 1 connection is provided between the remote control unit and the industrial truck. This uniqueness ensures that only a single remote control unit can issue commands from a distance to exactly one industrial truck. It is customary for the remote control units to use battery-operated control units that have to be charged for use of the industrial truck. Changing the assignment of remote control units to a transmitting and receiving unit of an industrial truck can be technically complex.

Aus US 2013/0234827 A1 ist ein System bekannt, bei dem ein Fahrzeug über eine portable machine und ein porable terminal gesteuert werden kann. Die portable machine arbeitet hierbei als ein fahrzeugspezifischer Schlüssel, der Befehl von dem portable terminal empfangen und an das Fahrzeug weiterleiten kann. Die Kopplung zwischen der portable machine und dem portable terminal erfolgt über eine NFC-Kopplung zwischen diesen Geräten direkt.Out US 2013/0234827 A1 a system is known in which a vehicle can be controlled via a portable machine and a portable terminal. The portable machine works here as a vehicle-specific key that can receive commands from the portable terminal and forward them to the vehicle. The coupling between the portable machine and the portable terminal takes place directly via an NFC coupling between these devices.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Kopplung einer zweiten Fernbedienung bereitzustellen, das einfach und flexibel einsetzbar ist.The invention is based on the object of providing a method for coupling a second remote control that can be used easily and flexibly.

Erfindungsgemäß wird die Aufgabe durch ein Verfahren mit den Merkmalen aus Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen bilden den Gegenstand der Unteransprüche.According to the invention, the object is achieved by a method having the features of claim 1. Advantageous refinements form the subject of the subclaims.

Das erfindungsgemäße Verfahren sieht eine Kopplung einer zweiten Fernbedieneinheit mit einer ersten Fernbedieneinheit vor. Hierbei ist die erste Fernbedieneinheit ausgebildet zu einer Funkverbindung mit einer Sende- und Empfangseinheit, wie sie beispielsweise in einem Flurförderzeug vorgesehen sein kann. Das erfindungsgemäße Verfahren sieht eine Kopplung der ersten Fernbedieneinheit mit der Sende- und Empfangseinheit für eine Funkverbindung vor. Nach dem Koppeln der ersten Fernbedieneinheit können Signale, Daten und Informationen zwischen der ersten Fernbedieneinheit und der Sende- und Empfangseinheit per Funk ausgetauscht werden. In einem weiteren Verfahrensschritt wird eine eineindeutige Adresse der zweiten Fernbedieneinheit an die Sende- und Empfangseinheit über eine Nahfeldkommunikation übermittelt. Mit Hilfe der eineindeutigen Adresse der zweiten Fernbedieneinheit liegen an der Sendeund Empfangseinheit alle Informationen zu den beiden Fernbedieneinheiten vor. In einem weiteren Schritt sendet die Sende- und Empfangseinheit die eineindeutige Adresse der zweiten Fernbedieneinheit an die erste Fernbedieneinheit. Das Koppeln der ersten Fernbedieneinheit mit der zweiten Fernbedieneinheit erfolgt über die gesendete eineindeutige Adresse der zweiten Fernbedieneinheit. Die zweite Fernbedieneinheit übermittelt also ihre eineindeutige Adresse an die Sende- und Empfangseinheit, diese sendet die eineindeutige Adresse der zweiten Fernbedieneinheit an die erste Fernbedieneinheit, so dass die erste Fernbedieneinheit mit der zweiten Fernbedieneinheit gekoppelt ist. Entsprechend dieser Kopplung zwischen erster und zweiten Fernbedieneinheit erfolgt ein Senden eines Befehls von der zweiten Fernbedieneinheit an die Sende- und Empfangseinheit des Flurförderzeugs, wobei der Befehl von der zweiten Fernbedieneinheit an die erste Fernbedieneinheit gesendet wird, die den Befehl per Funk an die Sende- und Empfangseinheit weiterleitet. Der besondere Vorteil des erfindungsgemäßen Verfahrens besteht darin, dass die 1:1-Verbindung zwischen dem Flurförderzeug und seiner Sende- und Empfangseinheit mit der ersten Fernbedieneinheit bestehen bleibt. Die zweite Fernbedieneinheit ist über die erste Fernbedieneinheit mit der Sende- und Empfangseinheit des Flurförderzeugs gekoppelt.The method according to the invention provides for a second remote control unit to be coupled to a first remote control unit. Here, the first remote control unit is designed for a radio connection with a transmitting and receiving unit, as can be provided, for example, in an industrial truck. The method according to the invention provides for a coupling of the first remote control unit to the transmitting and receiving unit for a radio link in front. After coupling the first remote control unit, signals, data and information can be exchanged between the first remote control unit and the transmitting and receiving unit by radio. In a further method step, a unique address of the second remote control unit is transmitted to the transmitting and receiving unit via near-field communication. With the help of the one-to-one address of the second remote control unit, all information about the two remote control units is available at the transmitting and receiving unit. In a further step, the transmitting and receiving unit sends the unique address of the second remote control unit to the first remote control unit. The coupling of the first remote control unit with the second remote control unit takes place via the sent unique address of the second remote control unit. The second remote control unit transmits its unique address to the transmitting and receiving unit, which sends the unique address of the second remote control unit to the first remote control unit, so that the first remote control unit is coupled to the second remote control unit. In accordance with this coupling between the first and second remote control unit, a command is sent from the second remote control unit to the transmitting and receiving unit of the industrial truck, the command being sent from the second remote control unit to the first remote control unit, which transmits the command via radio to the transmitting and receiving unit Receiving unit forwards. The particular advantage of the method according to the invention is that the 1: 1 connection between the industrial truck and its transmitting and receiving unit with the first remote control unit remains. The second remote control unit is coupled to the transmitting and receiving unit of the industrial truck via the first remote control unit.

In einer bevorzugten Weiterführung des erfindungsgemäßen Verfahrens ist die erste Fernbedieneinheit von einer Batterie- oder einem Akkumulator gespeist. Über die eigene Energieversorgung kann die erste Fernbedieneinheit für den vorgesehenen Betrieb gespeist werden.In a preferred development of the method according to the invention, the first remote control unit is fed by a battery or an accumulator. About the The first remote control unit can be fed with its own energy supply for the intended operation.

In einer ebenfalls bevorzugten Ausgestaltung ist die zweite Fernbedieneinheit mit einem Bedienelement ausgestattet, welches bei seiner Betätigung ausreichend Strom für das Senden des Befehls erzeugt. Die zweite Fernbedieneinheit ist aufgrund ihres Aufbaus ohne eine Batterie oder einen Akkumulator als Energiespeicher nicht dafür ausgebildet, dauerhaft eine Funkverbindung mit der Sende- und Empfangseinheit in dem Flurförderzeug aufrecht zu erhalten. Der für das Senden eines Signals oder eines Befehls von der zweiten Fernbedieneinheit an die erste Fernbedieneinheit benötigte Strom wird durch die Betätigung des Bedienelements erzeugt.In a likewise preferred embodiment, the second remote control unit is equipped with an operating element which, when actuated, generates sufficient current for sending the command. Due to its structure without a battery or an accumulator as an energy store, the second remote control unit is not designed to permanently maintain a radio connection with the transmitter and receiver unit in the industrial truck. The current required for sending a signal or a command from the second remote control unit to the first remote control unit is generated by actuating the control element.

In einer bevorzugten Weiterführung des erfindungsgemäßen Verfahrens weisen die erste und zweite Fernbedieneinheit jeweils ein Modul für eine Nahfeldkommunikation mit der Sende- und Empfangseinheit auf. Das Modul für eine Nahfeldkommunikation kann hierbei aktiv mit einer eigenen Leistungsversorgung oder passiv ausgebildet sein. Bei einer passiven Ausbildung wird die Energie der Sende- und Empfangseinheit an das Modul zur Nahfeldkommunikation übertragen.In a preferred further development of the method according to the invention, the first and second remote control units each have a module for near-field communication with the transmitting and receiving unit. The module for near-field communication can be designed to be active with its own power supply or passive. In the case of passive training, the energy from the transmitter and receiver unit is transmitted to the module for near-field communication.

In einer bevorzugten Weiterentwicklung des erfindungsgemäßen Verfahrens kann vorgesehen sein, dass die erste Fernbedieneinheit mit der Sende- und Empfangseinheit über eine Nahfeldkommunikation koppelt, wobei die erste Fernbedieneinheit ihre eineindeutige Adresse an die Sende- und Empfangseinheit sendet. Erfindungsgemäß kann in einer Weiterführung des Verfahrens die Sendeund Empfangseinheit die beiden eineindeutigen Adresse der Funkfernbedieneinheiten einander zuordnen, um ein Weiterleiten der Signale von der ersten Fernbedieneinheit an die zweite Fernbedieneinheit zu erlauben, wobei hierzu die eineindeutige Adresse der zweiten Fernbedieneinheit an die erste Fernbedieneinheit weitergeleitet wird.In a preferred further development of the method according to the invention, it can be provided that the first remote control unit couples with the transmitter and receiver unit via near-field communication, the first remote control unit sending its unique address to the transmitter and receiver unit. According to the invention, in a continuation of the method, the transmitting and receiving unit can assign the two unique addresses of the radio remote control units to one another in order to allow the signals from the first remote control unit to be passed on to the second remote control unit, with for this purpose, the unique address of the second remote control unit is forwarded to the first remote control unit.

In einer bevorzugten Weiterbildung ist vorgesehen, dass die erste Fernbedieneinheit die Kopplung mit der zweiten Fernbedieneinheit aufhebt, wenn die erste Fernbedieneinheit für eine vorbestimmte Zeitdauer keine Funkverbindung mit der Sende- und Empfangseinheit hatte oder die Sende- und Empfangseinheit ausgeschaltet wurde. Die erste Fernbedieneinheit löscht beispielsweise die eineindeutige Adresse der zweiten Fernbedieneinheit in ihrem Speicher, so dass nicht länger eine Kommunikation möglich ist, bei der Befehle von der zweiten Fernbedieneinheit über die erste Fernbedieneinheit an die Sende- und Empfangseinheit des Flurförderzeugs weitergeleitet werden.In a preferred development it is provided that the first remote control unit cancels the coupling with the second remote control unit if the first remote control unit had no radio connection with the transmitting and receiving unit for a predetermined period of time or the transmitting and receiving unit was switched off. The first remote control unit deletes, for example, the unique address of the second remote control unit in its memory, so that communication is no longer possible in which commands from the second remote control unit are passed on to the transmitting and receiving unit of the industrial truck via the first remote control unit.

Die vorliegende Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. Es zeigen:

Fig. 1
ein Flurförderzeug mit einer ersten und einer zweiten Fernbedieneinheit und
Fig. 2
eine schematische Blockansicht zur Kommunikation der Fernbedieneinheiten mit dem Flurförderzeug.
The present invention is explained in more detail below using an exemplary embodiment. Show it:
Fig. 1
an industrial truck with a first and a second remote control unit and
Fig. 2
a schematic block view of the communication between the remote control units and the industrial truck.

Fig. 1 zeigt ein Flurförderzeug 10, das hier beispielhaft als ein Mitfahrdeichselhubwagen ausgebildet ist. Das Fahrzeug 10 besitzt eine Sende- und Empfangseinheit 12, die einerseits dazu ausgebildet ist, über Strecken von einigen Metern per Funk zu kommunizieren und andererseits mit Hilfe einer Nahfeldkommunikation eindeutige Adresse auszulesen. Die Sende- und Empfangseinheit 12 ist zudem dazu ausgebildet, mindestens zwei eineindeutige Adressen aufzunehmen, zu speichern und einander zuzuordnen. Bei den eineindeutigen Adressen handelt es sich beispielsweise um sogenannte MAC-Adressen, wobei MAC für Media Accesss Control steht und eine eindeutige Identifikation für ein Gerät in einem Netzwerk vorgibt. Fig. 1 shows an industrial truck 10, which is designed here as an example of a ride-on drawbar lift truck. The vehicle 10 has a transmitting and receiving unit 12 which is designed, on the one hand, to communicate by radio over distances of a few meters and, on the other hand, to read out a unique address with the aid of near-field communication. The transmitting and receiving unit 12 is also designed to have at least two one-to-one Record, save and assign addresses to each other. The one-to-one addresses are, for example, so-called MAC addresses, where MAC stands for Media Access Control and specifies a unique identification for a device in a network.

Eine erste Fernbedieneinheit 14 ist vorgesehen. Im Betrieb sendet und empfängt die erste Fernbedieneinheit 14 per Funk 17 Signale und Befehle von der Sende- und Empfangseinheit 12. Die Fernbedieneinheit 14 kommuniziert mit einer zweiten Fernbedieneinheit 16, die beispielsweise als eine akkulose Fernbedieneinheit 16 ausgebildet ist. Die Fernbedieneinheit 16 besitzt ein Bedienelement 18, bei dessen Betätigung Strom erzeugt wird, um ein Signal 20 an die erste Fernbedieneinheit 14 zu senden.A first remote control unit 14 is provided. During operation, the first remote control unit 14 sends and receives signals and commands from the transmitting and receiving unit 12 by radio 17. The remote control unit 14 communicates with a second remote control unit 16, which is designed, for example, as a battery-free remote control unit 16. The remote control unit 16 has an operating element 18 which, when actuated, generates electricity in order to send a signal 20 to the first remote control unit 14.

Die Kommunikationsstruktur aus Fig. 1 ist in schematischer Ansicht in Fig. 2 dargestellt. Die erste Fernbedieneinheit 14 ist zu einer bidirektionalen Funkverbindung, beispielsweise per Bluetooth mit der Sende- und Empfangseinheit 12 des Flurförderzeugs ausgestattet. Die ohne einen Energiespeicher ausgestattete zweite Fernbedieneinheit 16 besitzt eine eineindeutige Adresse MAC 2 und kommuniziert auf direktem Wege 20 mit der Fernbedieneinheit 14. Um die direkte Kommunikation 20 zwischen der ersten Fernbedieneinheit 14 und der zweiten Fernbedieneinheit 16 aufzubauen, wird in der Sende- und Empfangseinheit 12 jeweils über Nahfeldkommunikation 24, 22 eine Kopplung der Fernbedieneinheiten 14, 16 ausgelöst. Für einen ersten Kopplungsvorgang wird die erste Fernbedieneinheit 14 in die Nähe der Sende- und Empfangseinheit 12 gebracht. Hierbei übernimmt die Sende- und Empfangseinheit 12 die eineindeutige Adresse (MAC 1) der ersten Fernbedieneinheit 14, diese Adresse (MAC 1) wird dazu verwendet, eine Bluetooth-Funkverbindung 17 aufzubauen.The communication structure Fig. 1 is in schematic view in Fig. 2 shown. The first remote control unit 14 is equipped for a bidirectional radio link, for example via Bluetooth, with the transmitting and receiving unit 12 of the industrial truck. The second remote control unit 16, which is equipped without an energy storage device, has a unique address MAC 2 and communicates directly 20 with the remote control unit 14. In order to establish direct communication 20 between the first remote control unit 14 and the second remote control unit 16, the transmitting and receiving unit 12 A coupling of the remote control units 14, 16 is triggered in each case via near-field communication 24, 22. For a first coupling process, the first remote control unit 14 is brought into the vicinity of the transmitting and receiving unit 12. Here, the transmitting and receiving unit 12 takes over the one-to-one address (MAC 1) of the first remote control unit 14; this address (MAC 1) is used to set up a Bluetooth radio link 17.

Die Sende- und Empfangseinheit 12 ist als Sende- und Empfangseinheit eines Flurförderzeugs für eine 1:1-Verbindung ausgelegt. Um zusätzlich zu der ersten Fernbedieneinheit 14 auch Signale über die zweite Fernbedieneinheit 16 an die Sende- und Empfangseinheit senden zu können, wird die zweite Fernbedieneinheit 16 mit der ersten Fernbedieneinheit 14 und nicht direkt mit der Sende- und Empfangseinheit gekoppelt. Hierzu wird die zweite Fernbedieneinheit 16 über eine Nahfeldkommunikation 22 mit der Sende- und Empfangseinheit 12 verbunden. Die eineindeutige Adresse der zweiten Fernbedieneinheit 16 in der Sende- und Empfangseinheit 12 hinterlegt. Die Sende- und Empfangseinheit 12 sendet die eineindeutige Adresse (MAC 2) der zweiten Fernbedieneinheit 16 an die erste Fernbedieneinheit 14, so dass diese ein Kopplungsverfahren zwischen der ersten und der zweiten Fernbedieneinheit einleiten kann. Sind die erste und die zweite Fernbedieneinheit gekoppelt, so können über die erste Fernbedieneinheit Signale der zweiten Fernbedieneinheit an die Sende- und Empfangseinheit 12 weitergeleitet werden.The transmitting and receiving unit 12 is designed as a transmitting and receiving unit of an industrial truck for a 1: 1 connection. In order to be able to send signals via the second remote control unit 16 to the transmitter and receiver unit in addition to the first remote control unit 14, the second remote control unit 16 is coupled to the first remote control unit 14 and not directly to the transmitter and receiver unit. For this purpose, the second remote control unit 16 is connected to the transmitting and receiving unit 12 via a near-field communication 22. The unique address of the second remote control unit 16 is stored in the transmitting and receiving unit 12. The transmitting and receiving unit 12 sends the unique address (MAC 2) of the second remote control unit 16 to the first remote control unit 14 so that it can initiate a coupling process between the first and the second remote control unit. If the first and the second remote control unit are coupled, signals from the second remote control unit can be forwarded to the transmitting and receiving unit 12 via the first remote control unit.

Die zweite Fernbedieneinheit kann als eine an der Hand oder den Fingern befestigbare Einheit ausgebildet sein, die auch von den Fingern der gleichen Hand bedient wird. Eine mögliche Ausgestaltung sieht beispielsweise vor, dass die zweite Fernbedieneinheit an Zeige- und Mittelfinger nach Art eines Ringes getragen wird und per Daumen eine Bedienung durch Drücken erfolgt.The second remote control unit can be designed as a unit that can be fastened to the hand or the fingers and is also operated by the fingers of the same hand. One possible embodiment provides, for example, that the second remote control unit is worn on the index and middle fingers like a ring and that the thumb is operated by pressing.

Besondere Vorteile entwickelt dieses Verfahren bei einem Aufbau, wo die Fernbedieneinheit 14 mit einem Akku und die zweite Fernbedieneinheit ohne eigene Energiequelle ausgebildet ist. Die erste Fernbedieneinheit 14 übernimmt die drahtlose Kommunikation mit der Sende- und Empfangseinheit 12 des Fahrzeugs, beispielsweise in Form von Funkbefehlen oder regelmäßigen Funksignalen, sogenannter Heartbeats. Die zweite Fernbedieneinheit dient dazu, Bedienerkommandos an die erste Fernbedieneinheit zu übertragen, damit diese dann die Befehle an das Fahrzeug senden kann. Die zweite Fernbedieneinheit wird über eine der folgenden Funktechniken, wie zigbee, Bluetooth, 868 MHz für Europa, 902 MHz für USA/Kanada oder 928 MHz für Japan, mit der ersten Fernbedieneinheit verbunden. Die zweite Fernbedieneinheit kann keine Funkbefehle an das Fahrzeug direkt senden, da dies lediglich für eine 1:1-Verbindung mit einer Fernbedieneinheit ausgebildet ist. Die zweite Fernbedieneinheit 16 besitzt ein NFC-Modul zum Austausch der eineindeutigen Adresse (MAC 2) mit der Sende- und Empfangseinheit 12.This method develops particular advantages in a structure in which the remote control unit 14 is designed with a rechargeable battery and the second remote control unit is designed without its own energy source. The first remote control unit 14 takes over the wireless communication with the transmitting and receiving unit 12 of the vehicle, for example in the form of radio commands or regular radio signals, so-called heartbeats. The second remote control unit is used to To transmit operator commands to the first remote control unit so that it can then send the commands to the vehicle. The second remote control unit is connected to the first remote control unit via one of the following radio technologies, such as zigbee, Bluetooth, 868 MHz for Europe, 902 MHz for USA / Canada or 928 MHz for Japan. The second remote control unit cannot send any radio commands to the vehicle directly, since this is only designed for a 1: 1 connection with a remote control unit. The second remote control unit 16 has an NFC module for exchanging the unique address (MAC 2) with the transmitting and receiving unit 12.

Erreicht wird hierdurch, dass das Fahrzeug nur Bedienerbefehle der zweiten Fernbedieneinheit 16 akzeptiert, die mit dem Fahrzeug durch vorheriges Pairing mit der ersten Fernbedieneinheit 14 zugeordnet ist. Die Zuordnung muss auch im vorübergehend stromlosen Zustand der akkulosen zweiten Fernbedieneinheit nach Wiederbestromung sichergestellt sein.What is achieved hereby is that the vehicle only accepts operator commands from the second remote control unit 16 that is assigned to the vehicle by prior pairing with the first remote control unit 14. The assignment must also be ensured in the temporarily de-energized state of the battery-free second remote control unit after power is restored.

BezugszeichenlisteList of reference symbols

1010
FlurförderzeugIndustrial truck
1212th
Sende- und EmpfangseinheitTransmitter and receiver unit
1414th
erste Fernbedieneinheitfirst remote control unit
1616
zweite Fernbedieneinheitsecond remote control unit
1717th
FunkverbindungRadio link
1818th
BedienelementControl element
2020th
Signalsignal
2222nd
NahfeldkommunikationNear field communication
2424
NahfeldkommunikationNear field communication

Claims (8)

  1. A method for linking a second remote control unit (16) to a first remote control unit (14) that is provided for a radio connection with a transceiver unit (12), and has the following method steps:
    - linking the first remote control unit (14) to the transceiver unit (12) for a radio connection,
    - transmitting a unique address of the second remote control unit (16) to the transceiver unit (12) by near field communication (22, 24),
    - sending the unique address of the second remote control unit (16) by the transceiver unit (12) to the first remote control unit (14) via the radio connection,
    - linking the first remote control unit (14) to the second remote control unit (16) by the sent unique address of the second remote control unit (16),
    - sending a command by the second remote control unit (16) to the transceiver unit (12) of an industrial truck (10), wherein the command is sent by the second remote control unit (16) to the first remote control unit (14) that forwards the command by radio to the transceiver unit (12).
  2. The method according to claim 1, characterized in that the first remote control unit (14) is designed as a remote control unit supplied by a battery or accumulator.
  3. The method according to claim 1 or 2, characterized in that the second remote control unit (16) is equipped with a control element (18) that generates sufficient power for sending the command when actuated.
  4. The method according to one of claims 1 to 3, characterized in that the first and second remote control unit (14, 16) each have a module for near field communication (22, 24) with the transceiver unit (12).
  5. The method according to one of claims 1 to 4, characterized in that the first remote control unit (14) is linked to the transceiver unit (12) by near field communication (22, 24), wherein the first remote control unit (14) sends its unique address to the transceiver
  6. The method according to claim 5, characterized in that the transceiver unit (12) associates the two unique addresses of the remote control units (14, 16) to each other.
  7. The method according to one of claims 1 to 6, characterized in that the first remote control unit (14) disconnects the link to the second remote control unit (16) when the first remote control unit (14) has not had any radio contact with the transceiver unit (12) for a predetermined period of time, or the transceiver unit (12) has been turned off.
  8. The method according to one of claims 1 to 7, characterized in that the first remote control unit (14) communicates by long-distance radio, in particular Bluetooth, with the transceiver unit (12).
EP18207744.6A 2017-12-01 2018-11-22 Method for coupling a second remote control unit with a first remote control unit Active EP3493175B1 (en)

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US20190172340A1 (en) 2019-06-06
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US10482760B2 (en) 2019-11-19

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