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EP2080731B1 - Industrial truck with at least one RFID transponder - Google Patents

Industrial truck with at least one RFID transponder Download PDF

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Publication number
EP2080731B1
EP2080731B1 EP20090000079 EP09000079A EP2080731B1 EP 2080731 B1 EP2080731 B1 EP 2080731B1 EP 20090000079 EP20090000079 EP 20090000079 EP 09000079 A EP09000079 A EP 09000079A EP 2080731 B1 EP2080731 B1 EP 2080731B1
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EP
European Patent Office
Prior art keywords
rfid transponder
data
truck
read
industrial truck
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.)
Not-in-force
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EP20090000079
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German (de)
French (fr)
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EP2080731A1 (en
Inventor
Martin Von Werder
Lutz-Wilhelm Güde
Lars Schellenberg
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Jungheinrich AG
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Jungheinrich AG
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Publication of EP2080731A1 publication Critical patent/EP2080731A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/0755—Position control; Position detectors

Definitions

  • the present invention relates to a system with a truck and at least one RFID transponder whose data can be read by a read / write device.
  • the individual production data is production-relevant additional information that is stored in the RFID transponder and that can be read out by the read / write device so that it can be made available to higher-level software, such as, for example, a manufacturing execution system (MES). for controlling production and monitoring the order of production steps.
  • MES manufacturing execution system
  • the data can also be routed to a Warehouse Management System (WMS), which handles the management of empty racks.
  • WMS Warehouse Management System
  • a truck which has an interface to the vehicle control, which is connected to a vehicle terminal.
  • the vehicle terminal is equipped with RFID antennas for communication at close range.
  • the vehicle is equipped with a W-LAN or a data radio device.
  • EP 1 732 027 A1 For example, an industrial truck with a device for transmitting vehicle-related data and a communication device for wireless data transfer is known.
  • EP 1 842 824 A2 For example, an industrial truck with a load-bearing means, a transmitting and receiving unit is known, whose transmitting and receiving area is directed to a region of the load-bearing means and an area in front of the load-carrying means.
  • a control unit that activates the transmitting and receiving unit to receive data from external transmitters is equipped with a sensor that detects a load on the load carrying means.
  • the invention has for its object to provide a system with a truck that provides additional data for a parent computer in an environment that is equipped with RFID transponders and read / write devices.
  • the truck according to the invention has or carries at least one RFID transponder whose data can be read out by a stationary in a field of application of the truck arranged read / write device.
  • the at least one RFID transponder is connected to a control unit via a data writing unit to write additional data on the driving and / or operating state of the truck in the RFID transponder and to provide for reading by the read / write device.
  • the connection can be made via radio or hardwired.
  • the truck according to the invention makes it possible not only to collect and forward data on the transported goods, but also to store data on the driving and / or operating state of the industrial truck in the RFID transponder. This joint data collection of data on the transported goods or its load carrying means and the transporting truck makes it possible to map in a higher-level control not only the movement of goods or load carrying means, but also the conditions of the truck.
  • the data writing unit preferably has a processor. With the use of a data writing unit, it is possible to store even more complex driving or operating conditions of the industrial truck by means of a suitable coding as additional data in the RFID transponder and thus to be available for higher-level management systems.
  • a central control of the truck is provided as a control unit for writing the additional data in the RFID transponder.
  • control unit can also be equipped with a sensor whose measured value can be written in the at least one transponder.
  • This sensor may be, for example, a fork-lift sensor, which indicates as the operating state of the truck, whether the fork of the truck is occupied.
  • Fig. 1 shows an inventive truck 10, which is equipped in the region of its mast with an RFID transponder 12.
  • the RFID transponder 12 on the mast can be provided for a variety of purposes, for example. Thus, it is basically conceivable to carry out a position determination of the industrial truck 10 by reading out the RFID transponder 12.
  • the RFID transponder 12 may also be provided to the truck, for example, at the entrance or Exit, identify. Regardless of its specific use, the RFID transponder 12 is provided with a fixed identification number, which is read from the RFID transponder. Depending on the configuration, this may be an active RFID transponder having its own power supply. Alternatively, it may also be a passive RFID transponder, which draws its energy from the received signals.
  • Fig. 1 shows an arranged on a fork load 14.
  • the load 14 is equipped with an RFID transponder 16, which in turn identifies the load via its unique identification number, so that a higher-level computer can evaluate this.
  • the RFID transponders 12, 16 are read via read / write devices 18, which are preferably arranged stationarily in the field of application of the industrial truck 10.
  • the data read out by the reading / writing devices 18 are forwarded to a central computer 20, where they are evaluated.
  • the evaluation can take place, for example, via a Warehouse Management System (WMS).
  • WMS Warehouse Management System
  • the determination of the position of the truck and / or its goods need not necessarily take place via a read / write device 18, but can also be done using multiple stationary in the work area read / write devices by, for example, transit time differences of the signals are detected to the individual devices.
  • additional data are stored in the RFID transponder.
  • the additional data describe a driving or operating state of the truck.
  • the additional information on the driving or operating state of the truck 10 are also read and forwarded to a higher-level computer 20 accordingly.
  • the additional information transmitted can be processed and evaluated separately in the computer 20.
  • the information on the driving and / or operating state of the truck can be forwarded to a fleet manager or other system for monitoring the trucks.
  • Fig. 2 shows the concrete structure for an RFID transponder, which transmits additional information of a sensor.
  • the RFID transponder 22 has a fixed identification number, which serves for example for identification of the truck.
  • the RFID transponder has a variable signal of 2 bits depth. This means that in addition to the fixed identification number 2 bits of additional information can be transmitted every time an RFID transponder is read out.
  • the RFID transponder 22 is supplied via a voltage source 24 with electrical voltage.
  • An unspecified fork occupancy sensor is integrated in the data writing unit 26.
  • the data writing unit 26 is also powered by the voltage source 24.
  • the data writing device is applied to the RFID transponder 22 via a control line 28.
  • 2 bits of additional data from the truck to the parent computer 20 are forwarded with each read. 2 bits of additional information make it possible to transmit four signals from the truck. If, for example, it is an RFID transponder which has, for example, 3-bit variable channel width, then eight different driving or operating states can already be transmitted. By repeating the read-out process, more information can be transmitted overall.
  • a possible approach for the evaluation of driving or operating states is that when read by the reader / writer 18, both the identification number of the RFID transponder 16 and the identification number of the transponder 12, is checked on the basis of additionally transmitted data whether the fork occupancy sensor indicates that a load 14 is on the forklift. As a result, it can be detected very early whether a fork occupancy sensor has failed on the truck.
  • additional data can be provided. It is thus possible, for example, to provide a delivery system in which driving and status information about the industrial truck is passed on to the computer 20 via the additional data, and this data is transmitted to the computer Forwards a fleet manager, where they are then evaluated in terms of utilization and utilization of the individual trucks.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)

Description

Die vorliegende Erfindung betrifft ein System mit einem Flurförderzeug und mit mindestens einem RFID-Transponder, dessen Daten von einer Lese-/Schreibeinrichtung auslesbar sind.The present invention relates to a system with a truck and at least one RFID transponder whose data can be read by a read / write device.

Aus FM DAS LOGISTIK-MAGAZIN 10/2007, Seite 36, 37 , ist ein Asset-Management via Radio Frequency Indentification von Siemens A&D bekannt. Bei dem bekannten System werden bei der Herstellung und/oder Lagerung von Gütern Behälter oder Transportgestelle mit robusten, beschreibbaren und wieder verwendbaren Tags (Datenspeicher) ausgestattet. Mit dem Funkfeld von fest im Raum installierten Schreib-/Lesegeräten werden die Daten für das Beschreiben und Lesen der Tags sowie die Energie zum Datenspeicher übertragen. Datenspeicher beinhalten eine feste, nicht veränderbare Identifikationsnummer und einen wiederbeschreibbaren Bereich für individuelle Produktionsdaten. Bei den individuellen Produktionsdaten handelt es sich um fertigungsrelevante Zusatzinformationen, die in dem RFID-Transponder abgelegt werden und von der Lese-/Schreibeinrichtung ausgelesen werden können, um so einer übergeordneten Software zur Verfügung gestellt werden können, wie beispielsweise einem Manufacturing Execution System (MES) zur Steuerung der Produktion und zur Überwachung der Reihenfolge der Produktionsschritte. Die Daten können ebenfalls an ein Warehouse-Management-System (WMS) weitergeleitet werden, das die Verwaltung von leeren Transportgestellen übernimmt.Out FM THE LOGISTICS MAGAZINE 10/2007, page 36, 37 , asset management is known via Radio Frequency Identification by Siemens A & D. In the known system containers or caddies are equipped with robust, writable and reusable tags (data storage) in the manufacture and / or storage of goods. With the radio field of write / read devices permanently installed in the room, the data for writing and reading the tags as well as the energy are transferred to the data memory. Data memories include a fixed, unchangeable identification number and a rewritable area for individual production data. The individual production data is production-relevant additional information that is stored in the RFID transponder and that can be read out by the read / write device so that it can be made available to higher-level software, such as, for example, a manufacturing execution system (MES). for controlling production and monitoring the order of production steps. The data can also be routed to a Warehouse Management System (WMS), which handles the management of empty racks.

Aus Industrieanzeiger 28/29 2006, Seiten 20 ff . sind RFID-Transponder bekannt, die mit einer Sensorik zur Temperaturerfassung ausgestattet sind.Out Industrial display 28/29 2006, pages 20 ff , RFID transponders are known, which are equipped with a sensor for temperature detection.

Aus Logistik und Fördertechnik Nr. 2, 15. Februar 2006, Seiten 21 ff. ist eine Systemintegration bekannt, bei der eine Plausibilitätsprüfung der abzuwickelnden Fahraufträge durchgeführt wird. Die Plausibilitätsprüfung sieht vor, dass das Gewicht der aufgenommenen Ware mit dem Gewicht aus dem Transportauftrag verglichen wird, um so festzustellen, ob die für den Transportauftrag hinterlegten Informationen richtig sind.Out Logistics and Conveyor Technology No. 2, 15 February 2006, pages 21 ff. is a system integration is known in which a plausibility check of the executed transport orders is performed. The plausibility check involves comparing the weight of the picked goods with the weight from the transfer order to determine whether the information stored for the transfer order is correct.

Aus LOGISTIK für Unternehmen 3/2007, Seiten 46 - 48 ist ein Flurförderzeug bekannt, das eine Schnittstelle zur Fahrzeugsteuerung aufweist, die mit einem Fahrzeugterminal verbunden ist. Das Fahrzeugterminal ist zur Kommunikation im Nahbereich mit RFID-Antennen ausgestattet. Zur Kommunikation im Fembereich ist das Fahrzeug mit einer W-LAN oder einer Datenfunkeinrichtung ausgestattet.Out LOGISTICS for companies 3/2007, pages 46 - 48 a truck is known which has an interface to the vehicle control, which is connected to a vehicle terminal. The vehicle terminal is equipped with RFID antennas for communication at close range. For communication in the Fembereich the vehicle is equipped with a W-LAN or a data radio device.

Aus EP 1 732 027 A1 ist ein Flurförderzeug mit einer Vorrichtung zur Übertragung von fahrzeugbezogenen Daten und einer Kommunikationsvorrichtung zum drahtlosen Datentransfer bekannt.Out EP 1 732 027 A1 For example, an industrial truck with a device for transmitting vehicle-related data and a communication device for wireless data transfer is known.

Aus EP 1 842 824 A2 ist ein Flurförderzeug mit einem Lasttragmittel, einer Sende- und Empfangseinheit bekannt, deren Sende- und Empfangsbereich auf einen Bereich des Lasttragmittels und einem Bereich vor dem Lasttragmittel gerichtet ist. Eine Steuereinheit, die die Sende- und Empfangseinheit für den Empfang von Daten von externen Sendern aktiviert, ist mit einem Sensor ausgestattet, der eine Last auf dem Lasttragmittel detektiert.Out EP 1 842 824 A2 For example, an industrial truck with a load-bearing means, a transmitting and receiving unit is known, whose transmitting and receiving area is directed to a region of the load-bearing means and an area in front of the load-carrying means. A control unit that activates the transmitting and receiving unit to receive data from external transmitters is equipped with a sensor that detects a load on the load carrying means.

Der Erfindung liegt die Aufgabe zugrunde, ein System mit einem Flurförderzeug bereitzustellen, das in einer Umgebung, die mit RFID-Transpondern und Lese-/Schreibeinrichtungen ausgestattet ist, zusätzliche Daten für einen übergeordneten Rechner zur Verfügung stellt.The invention has for its object to provide a system with a truck that provides additional data for a parent computer in an environment that is equipped with RFID transponders and read / write devices.

Erfindungsgemäß wird die Aufgabe durch ein System mit einem Flurförderzeug gelöst, das die Merkmale aus Anspruch 1 besitzt. Vorteilhafte Ausgestaltungen bilden die Gegenstände der Unteransprüche.According to the invention the object is achieved by a system with a truck, which has the features of claim 1. Advantageous embodiments form the subject of the dependent claims.

Das erfindungsgemäße Flurförderzeug besitzt oder trägt mindestens einen RFID-Transponder, dessen Daten von einer ortsfest in einem Einsatzgebiet des Flurförderzeuges angeordneten Lese-/Schreibeinrichtung ausgelesen werden können. Erfindungsgemäß ist der mindestens eine RFID-Transponder mit einer Steuereinheit über eine Datenschreibeinheit verbunden, um zusätzliche Daten zum Fahr- und/oder Betriebszustand des Flurförderzeugs in dem RFID-Transponder zu schreiben und für das Auslesen durch die Lese-/Schreibeinrichtung bereitzustellen. Die Verbindung kann über Funk oder fest verdrahtet erfolgen. Das erfindungsgemäße Flurförderzeug schafft die Möglichkeit, nicht nur Daten zu den transportierten Gütern zu erfassen und weiterzuleiten, sondern zusätzlich Daten zum Fahr- und/oder Betriebszustand des Flurförderzeugs in dem RFID-Transponder abzulegen. Diese gemeinsame Datenerfassung von Daten zu dem transportierten Gut oder dessen Lasttragmittel und zu dem transportierenden Flurförderzeug ermöglicht es, in einer übergeordneten Steuerung nicht nur die Bewegung von Gütern oder Lasttragmitteln, sondern auch die Zustände des Flurförderzeugs abzubilden.The truck according to the invention has or carries at least one RFID transponder whose data can be read out by a stationary in a field of application of the truck arranged read / write device. According to the invention, the at least one RFID transponder is connected to a control unit via a data writing unit to write additional data on the driving and / or operating state of the truck in the RFID transponder and to provide for reading by the read / write device. The connection can be made via radio or hardwired. The truck according to the invention makes it possible not only to collect and forward data on the transported goods, but also to store data on the driving and / or operating state of the industrial truck in the RFID transponder. This joint data collection of data on the transported goods or its load carrying means and the transporting truck makes it possible to map in a higher-level control not only the movement of goods or load carrying means, but also the conditions of the truck.

Bevorzugt weist die Datenschreibeinheit einen Prozessor auf. Mit dem Einsatz einer Datenschreibeinheit ist es möglich, auch komplexere Fahr- oder Betriebszustände des Flurförderzeugs durch eine geeignete Codierung als zusätzliche Daten in dem RFID-Transponder abzulegen und so für übergeordnete Verwaltungssysteme zur Verfügung zu stehen.The data writing unit preferably has a processor. With the use of a data writing unit, it is possible to store even more complex driving or operating conditions of the industrial truck by means of a suitable coding as additional data in the RFID transponder and thus to be available for higher-level management systems.

In einer bevorzugten Ausgestaltung ist als Steuereinheit zum Schreiben der zusätzlichen Daten in den RFID-Transponder eine zentrale Steuerung des Flurförderzeugs vorgesehen.In a preferred embodiment, a central control of the truck is provided as a control unit for writing the additional data in the RFID transponder.

In einer alternativen Ausgestaltung, die auch zusätzlich zu der von der zentralen Steuerung gespeisten Steuereinheit möglich ist, kann die Steuereinheit auch mit einem Sensor ausgestattet sein, dessen Messwert in den mindestens einen Transponder schreibbar ist. Bei diesem Sensor kann es sich beispielsweise um einen Gabelbelegungssensor handeln, der als Betriebszustand des Flurförderzeugs anzeigt, ob die Lastgabel des Flurförderzeugs belegt ist.In an alternative embodiment, which is also possible in addition to the control unit fed by the central controller, the control unit can also be equipped with a sensor whose measured value can be written in the at least one transponder. This sensor may be, for example, a fork-lift sensor, which indicates as the operating state of the truck, whether the fork of the truck is occupied.

Die Erfindung wird an den nachfolgenden Figuren näher erläutert. Es zeigt:

Fig. 1
ein erfindungsgemäßes Flurförderzeug, das im Bereich seines Hub- mastes mit einem RFID-Transponder ausgestattet ist, und
Fig. 2
den Aufbau der Datenschreibeinheit mit einem Sensor.
The invention will be explained in more detail in the following figures. It shows:
Fig. 1
an inventive truck, which is equipped in the region of its mast with an RFID transponder, and
Fig. 2
the structure of the data writing unit with a sensor.

Fig. 1 zeigt ein erfindungsgemäßes Flurförderzeug 10, das im Bereich seines Hubmastes mit einem RFID-Transponder 12 ausgestattet ist. Der RFID-Transponder 12 am Hubmast kann beispielsweise für unterschiedlichste Zwecke vorgesehen sein. So ist es grundsätzlich denkbar, eine Positionsbestimmung des Flurförderzeugs 10 durch Auslesen des RFID-Transponders 12 vorzunehmen. Alternativ kann der RFID-Transponder 12 auch dazu vorgesehen sein, um das Flurförderzeug, beispielsweise bei der Einfahrt oder Ausfahrt, zu identifizieren. Unabhängig von seinem konkreten Einsatz ist der RFID-Transponder 12 mit einer festen Identifikationsnummer versehen, die aus dem RFID-Transponder ausgelesen wird. Je nach Ausgestaltung kann es sich dabei um einen aktiven RFID-Transponder handeln, der eine eigene Stromversorgung besitzt. Alternativ kann es sich auch um einen passiven RFID-Transponder handeln, der seine Energie aus den empfangenen Signalen bezieht. Fig. 1 shows an inventive truck 10, which is equipped in the region of its mast with an RFID transponder 12. The RFID transponder 12 on the mast can be provided for a variety of purposes, for example. Thus, it is basically conceivable to carry out a position determination of the industrial truck 10 by reading out the RFID transponder 12. Alternatively, the RFID transponder 12 may also be provided to the truck, for example, at the entrance or Exit, identify. Regardless of its specific use, the RFID transponder 12 is provided with a fixed identification number, which is read from the RFID transponder. Depending on the configuration, this may be an active RFID transponder having its own power supply. Alternatively, it may also be a passive RFID transponder, which draws its energy from the received signals.

Fig. 1 zeigt ein auf einer Lastgabel angeordnetes Lastgut 14. Das Lastgut 14 ist mit einem RFID-Transponder 16 ausgestattet, der wiederum über seine eindeutige Identifikationsnummer das Lastgut kennzeichnet, so daß ein übergeordneter Rechner diese auswerten kann. Fig. 1 shows an arranged on a fork load 14. The load 14 is equipped with an RFID transponder 16, which in turn identifies the load via its unique identification number, so that a higher-level computer can evaluate this.

Ausgelesen werden die RFID-Transponder 12, 16 über Lese-/Schreibeinrichtungen 18, die bevorzugt ortsfest im Einsatzgebiet des Flurförderzeugs 10 angeordnet sind. Die von den Lese-/Schreibeinrichtungen 18 ausgelesenen Daten werden an einen zentralen Rechner 20 weitergeleitet, wo sie ausgewertet werden. Die Auswertung kann beispielsweise über ein Warehouse-Management-System (WMS) erfolgen. Auch ist es möglich, beispielsweise durch eine Zuordnung zu den Lese-/Schreibeinrichtungen 18, die Position des Transportsguts 14 und/oder die Position des Flurförderzeugs 10 festzustellen. Die Positionsbestimmung für das Flurförderzeug und/oder seine Ware muß nicht notwendig über eine Lese-/Schreibeinrichtung 18 erfolgen, sondern kann auch unter Verwendung mehrerer im Arbeitsbereich stationärer Lese-/Schreibeinrichtungen erfolgen, indem beispielsweise Laufzeitunterschiede der Signale zu den einzelnen Geräten erfaßt werden.The RFID transponders 12, 16 are read via read / write devices 18, which are preferably arranged stationarily in the field of application of the industrial truck 10. The data read out by the reading / writing devices 18 are forwarded to a central computer 20, where they are evaluated. The evaluation can take place, for example, via a Warehouse Management System (WMS). It is also possible, for example by an assignment to the read / write devices 18, to determine the position of the transported goods 14 and / or the position of the industrial truck 10. The determination of the position of the truck and / or its goods need not necessarily take place via a read / write device 18, but can also be done using multiple stationary in the work area read / write devices by, for example, transit time differences of the signals are detected to the individual devices.

Unabhängig von der Funktion der RFID-Transponder 12, 16 werden in dem RFID-Transponder zusätzliche Daten abgelegt. Die zusätzlichen Daten beschreiben einen Fahr- oder Betriebszustand des Flurförderzeugs. Über die Lese-/Schreibgeräte werden die zusätzlichen Informationen zum Fahr- oder Betriebszustand des Flurförderzeugs 10 mitausgelesen und entsprechend an einen übergeordneten Rechner 20 weitergeleitet. Selbst wenn die primär in den RFID-Transpondern 12 und 16 vorgesehenen Daten von bestimmten Programmen ausgelesen und ausgewertet werden, kann die übertragene zusätzliche Information in dem Rechner 20 separat verarbeitet und ausgewertet werden. So können beispielsweise die Informationen zum Fahr- und/oder Betriebszustand des Flurförderzeugs an einen Flotten-Manager oder ein sonstiges System zur Überwachung der Flurförderzeuge weitergeleitet werden.Independent of the function of the RFID transponders 12, 16, additional data are stored in the RFID transponder. The additional data describe a driving or operating state of the truck. About the read / write devices, the additional information on the driving or operating state of the truck 10 are also read and forwarded to a higher-level computer 20 accordingly. Even if the data provided primarily in the RFID transponders 12 and 16 are read out and evaluated by certain programs, the additional information transmitted can be processed and evaluated separately in the computer 20. Thus, for example, the information on the driving and / or operating state of the truck can be forwarded to a fleet manager or other system for monitoring the trucks.

Fig. 2 zeigt den konkreten Aufbau für einen RFID-Transponder, der zusätzliche Informationen eines Sensors überträgt. Der RFID-Transponder 22 besitzt eine festgelegte Identifikationsnummer, die beispielsweise zur Identifikation des Flurförderzeugs dient. Zusätzlich besitzt der RFID-Transponder ein variables Signal der Tiefe 2 Bit. Das bedeutet, dass zu der fest vorgegebenen Identifikationsnummer zusätzlich bei jedem Auslesen eines RFID-Transponders 2 Bit weitere Informationen übertragen werden können. Der RFID-Transponder 22 wird über eine Spannungsquelle 24 mit elektrischer Spannung versorgt. Fig. 2 shows the concrete structure for an RFID transponder, which transmits additional information of a sensor. The RFID transponder 22 has a fixed identification number, which serves for example for identification of the truck. In addition, the RFID transponder has a variable signal of 2 bits depth. This means that in addition to the fixed identification number 2 bits of additional information can be transmitted every time an RFID transponder is read out. The RFID transponder 22 is supplied via a voltage source 24 with electrical voltage.

Ein nicht näher dargestellter Gabelbelegungssensor ist in der Datenschreibeinheit 26 integriert. Die Datenschreibeinheit 26 wird ebenfalls von der Spannungsquelle 24 versorgt. Über eine Steuerleitung 28 liegt die Datenschreibeinrichtung an dem RFID-Transponder 22 an. In dem dargestellten Ausführungsbeispiel werden mit jedem Auslesevorgang 2 Bit an zusätzlichen Daten von dem Flurförderzeug an den übergeordneten Rechner 20 weitergeleitet. 2 Bit an zusätzlichen Informationen erlauben es, vier Signale von dem Flurförderzeug zu übertragen. Handelt es sich beispielsweise um einen RFID-Transponder, der beispielsweise 3 Bit variable Kanalbreite besitzt, so können bereits acht unterschiedliche Fahr- oder Betriebszustände übertragen werden. Durch Wiederholung des Auslesevorgangs können insgesamt mehr Informationen übertragen werden.An unspecified fork occupancy sensor is integrated in the data writing unit 26. The data writing unit 26 is also powered by the voltage source 24. The data writing device is applied to the RFID transponder 22 via a control line 28. In the illustrated embodiment, 2 bits of additional data from the truck to the parent computer 20 are forwarded with each read. 2 bits of additional information make it possible to transmit four signals from the truck. If, for example, it is an RFID transponder which has, for example, 3-bit variable channel width, then eight different driving or operating states can already be transmitted. By repeating the read-out process, more information can be transmitted overall.

Ein möglicher Ansatz für die Auswertung von Fahr- oder Betriebszuständen besteht beispielsweise darin, dass, wenn von der Lese-/Schreibeinrichtung 18 sowohl die Identifikationsnummer des RFID-Transponders 16 als auch die Identifikationsnummer des Transponders 12 eingelesen wurde, anhand der zusätzlich übermittelten Daten geprüft wird, ob auch der Gabelbelegungssensor anzeigt, dass sich eine Last 14 auf der Lastgabel befindet. Hierdurch kann bereits sehr früh erkannt werden, ob ein Gabelbelegungssensor an dem Flurförderzeug ausgefallen ist.A possible approach for the evaluation of driving or operating states, for example, is that when read by the reader / writer 18, both the identification number of the RFID transponder 16 and the identification number of the transponder 12, is checked on the basis of additionally transmitted data whether the fork occupancy sensor indicates that a load 14 is on the forklift. As a result, it can be detected very early whether a fork occupancy sensor has failed on the truck.

Auch weitere Einsatzmöglichkeiten für die zusätzlichen Daten können vorgesehen sein. So ist es beispielsweise möglich, ein Ableitsystem vorzusehen, bei dem über die zusätzlichen Daten Fahr- und Zustandsinformationen zu dem Flurförderzeug an den Rechner 20 weitergeleitet werden, der diese Daten an einen Flotten-Manager weiterleitet, wo diese dann im Hinblick auf Nutzung und Auslastung der einzelnen Flurförderzeuge ausgewertet werden.Other uses for the additional data can be provided. It is thus possible, for example, to provide a delivery system in which driving and status information about the industrial truck is passed on to the computer 20 via the additional data, and this data is transmitted to the computer Forwards a fleet manager, where they are then evaluated in terms of utilization and utilization of the individual trucks.

Claims (8)

  1. A system having an industrial truck and at least one RFID transponder (12, 22) as well as a stationary read/write device (18) arranged in an area of use of the industrial truck, wherein the at least one RFID transponder (12, 22) is arranged on the industrial truck, and wherein the data from the RFID transponder (12, 22) can be read out by the read/write device (18), characterized in that the at least one RFID transponder (12, 22) is connected to a control unit by means of a data writing unit (26) to write additional data on the traveling or operating status of the industrial truck into the at least one RFID transponder (12, 22) and provide them to be read out by the read/write device (18).
  2. The system according to claim 1, characterized in that the data writing unit (26) has a processor.
  3. The system according to claim 1 or 2, characterized in that the control unit is connected to a central control of the industrial truck.
  4. The system according to one of claims 1 or 2, characterized in that the control unit has a sensor, of which the measured value can be written into the at least one transponder.
  5. The system according to claim 4, characterized in that the control unit has a fork allocation sensor.
  6. The system according to one of claims 1 to 5, characterized in that at least one further RFID transponder (16) is attached to the load and/or a load carrier.
  7. The system according to one of claims 1 to 6, characterized in that the at least one transponder (12, 22) on the industrial truck is connected to the control unit by radio.
  8. The system according to one of claims 1 to 6, characterized in that at least one transponder (12, 22) on the industrial truck is connected to the control unit by means of at least one control line.
EP20090000079 2008-01-10 2009-01-07 Industrial truck with at least one RFID transponder Not-in-force EP2080731B1 (en)

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DE200810003806 DE102008003806A1 (en) 2008-01-10 2008-01-10 Industrial truck with at least one RFID transponder

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EP2080731A1 EP2080731A1 (en) 2009-07-22
EP2080731B1 true EP2080731B1 (en) 2013-02-13

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US9818003B2 (en) 2015-05-06 2017-11-14 Crown Equipment Corporation Diagnostic tag for an industrial vehicle tag reader

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DE102009038926A1 (en) * 2009-08-26 2011-03-03 Jungheinrich Aktiengesellschaft Ground conveyor has vehicle controller, which has component processor that receives data by data bus and transmits controlling signal
DE102011016019A1 (en) * 2011-04-04 2012-10-04 Still Gmbh Industrial truck with data acquisition device
DE102014104684A1 (en) * 2014-04-02 2015-10-08 Linde Material Handling Gmbh Method and system for operating an industrial truck

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DE102005024883A1 (en) 2005-05-31 2006-12-07 Still Gmbh Industrial truck for communication system, has transmission device transmitting vehicle-based data, data for recognition and removal of malfunction and interferences and operational data, and formed as transmitting and receiving unit
DE102006014447A1 (en) 2006-03-29 2007-10-04 Jungheinrich Aktiengesellschaft Industrial truck, has fork occupancy sensor provided to detect load on loading fork, and control unit that initiates activation of transmitting and receiving unit for receiving data from external transponder, when sensor has detected load

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US9658622B2 (en) 2015-05-06 2017-05-23 Crown Equipment Corporation Industrial vehicle for identifying malfunctioning sequenced tag and tag layout for use therewith
US9811088B2 (en) 2015-05-06 2017-11-07 Crown Equipment Corporation Industrial vehicle comprising tag reader and reader module
US9818003B2 (en) 2015-05-06 2017-11-14 Crown Equipment Corporation Diagnostic tag for an industrial vehicle tag reader
US10515237B2 (en) 2015-05-06 2019-12-24 Crown Equipment Corporation Tag reader with diagnostic tag and an industrial vehicle incorporating the same
US11288463B2 (en) 2015-05-06 2022-03-29 Crown Equipment Corporation Tag reader with diagnostic tag
US11726496B2 (en) 2015-05-06 2023-08-15 Crown Equipment Corporation Tag layout for industrial vehicle operation
US11797785B2 (en) 2015-05-06 2023-10-24 Crown Equipment Corporation Tag reader with diagnostic tag
US12093056B2 (en) 2015-05-06 2024-09-17 Crown Equipment Corporation Tag layout for industrial vehicle operation
US12429884B2 (en) 2015-05-06 2025-09-30 Crown Equipment Corporation Tag layout for industrial vehicle operation

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