DE102012202920A1 - Device for detecting object marked with radio frequency identification label identified by electromagnetic waves, has reading devices with frequency bands for supplying energy to transponder of label and for data exchange with transponder - Google Patents
Device for detecting object marked with radio frequency identification label identified by electromagnetic waves, has reading devices with frequency bands for supplying energy to transponder of label and for data exchange with transponder Download PDFInfo
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- DE102012202920A1 DE102012202920A1 DE201210202920 DE102012202920A DE102012202920A1 DE 102012202920 A1 DE102012202920 A1 DE 102012202920A1 DE 201210202920 DE201210202920 DE 201210202920 DE 102012202920 A DE102012202920 A DE 102012202920A DE 102012202920 A1 DE102012202920 A1 DE 102012202920A1
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- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 2
- 238000013075 data extraction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
- G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10158—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/756—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator for modifying the reflectivity of the reflector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/758—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Toxicology (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Erfassung eines mittels einer Marke oder Etikette zur Identifizierung mittels elektromagnetischer Wellen (RFID) markierten Objekts, mit einem ein erstes Frequenzband verwendenden ersten Lesegerät zum Datenaustausch mit der einen Transponder aufweisenden Etikette und zur Energieversorgung des Transponders. The invention relates to a device and a method for detecting an object marked by means of a tag or label for identification by means of electromagnetic waves (RFID), having a first reading device using a first frequency band for exchanging data with the tag having a transponder and for powering the transponder.
Bei Verwendung von RFID-Marken oder -Etiketten ist es häufig wünschenswert, die Entfernung der Marke vom Lesegerät zu kennen. Zum einen um zu verhindern, dass Marken, die sich nicht im gewünschten Erfassungsbereich befinden, erkannt werden. Insbesondere in Materiallagern tritt eine Problematik auf, dass ein- und ausgehende Güter oder Objekte an einem Tor erfasst werden sollen, nicht jedoch Güter, die in der Nähe des gewünschten Erfassungsbereichs lediglich abgestellt sind. Ebenso ist es beispielsweise an Fertigungsbändern erforderlich, dass lediglich Güter erfasst werden, die sich gerade direkt an einer Bearbeitungsstation befinden und nicht zusätzliche weitere Güter. When using RFID tags or tags, it is often desirable to know the tag removal from the reader. On the one hand to prevent that brands, which are not in the desired detection area, are recognized. Particularly in material warehouses, a problem occurs that incoming and outgoing goods or objects are to be detected at a gate, but not goods that are only parked in the vicinity of the desired detection area. Similarly, it is necessary, for example, on production lines that only goods are detected that are currently located directly at a processing station and not additional additional goods.
Herkömmlicherweise wird entweder versucht über eine Feldstärke des Lesesignals eine Entfernungsschätzung durchzuführen, was aber aufgrund von Mehrwegeausbreitungen im industriellen Umfeld unzuverlässig ist. Herkömmliche Systeme sind meist nicht mit einem jeweiligen Standard kompatibel und benötigen in der Regel ebenso eine eigene Stromversorgung, beispielsweise Batterien. Conventionally, either a field estimation of the read signal is attempted to perform a range estimation, which is unreliable due to multipath propagation in an industrial environment. Conventional systems are usually not compatible with a particular standard and usually also require its own power supply, such as batteries.
Es ist Aufgabe der Erfindung eine Vorrichtung und ein Verfahren zur Erfassung eines mit einer Marke oder Etikette zur Identifizierung mittels elektromagnetischer Wellen (RFID) markierten Objekts derart bereitzustellen, dass ein gewünschter Erfassungsbereich wirksam konfiguriert werden kann. Es sollen lediglich derartige Objekte ausgelesen werden können, deren Datenaus- oder -einlesen auch wirklich beabsichtigt ist. It is an object of the invention to provide an apparatus and method for detecting an object marked with an electromagnetic wave (RFID) tag or tag such that a desired detection range can be effectively configured. It should only be able to read such objects whose data extraction or read-in is really intended.
Die Aufgabe wird durch eine Vorrichtung gemäß dem Hauptanspruch und ein Verfahren gemäß dem Nebenanspruch gelöst. The object is achieved by a device according to the main claim and a method according to the independent claim.
Gemäß einem ersten Aspekt wird eine Vorrichtung zur Erfassung einer Etikette zur Identifizierung mittels elektromagnetischer Wellen beansprucht, mit einem ein erstes Frequenzband verwendendes ersten Lesegerätes zur Energieversorgung eines Transponders der Etikette und zum Datenaustausch mit dem Transponder; gekennzeichnet durch ein vom ersten getrenntes zweites Frequenzband verwendendes zweites Lesegerät zur Messung dessen Entfernung zu einem Entfernungsmessungsmodulator im Bereich der Etikette, wobei der Entfernungsmessungsmodulator mittels des ersten Lesegerätes mit der zur Entfernungsmessung erforderlichen Energie versorgt wird. Der Entfernungsmessungsmodulator ist vorteilhaft in der Nähe des Transponders positioniert. According to a first aspect, a device for detecting a label for identification by means of electromagnetic waves is claimed, comprising a first frequency band using a first reader for powering a transponder of the label and for data exchange with the transponder; characterized by a second reading device using a second frequency band separated from the first one for measuring its distance to a distance measuring modulator in the region of the label, wherein the distance measuring modulator is supplied with the energy required for the distance measurement by means of the first reading device. The distance measuring modulator is advantageously positioned in the vicinity of the transponder.
Gemäß einem zweiten Aspekt wird ein Verfahren zur Erfassung einer Etikette zur Identifizierung mittels elektromagnetischer Wellen mit den folgenden Schritten beansprucht: Energieversorgen eines Entfernungsmessungsmodulators im Bereich der Etikette mittels eines ein erstes Frequenzband verwendenden ersten Lesegerätes mit einer für eine Entfernungsmessung eines ein von dem ersten getrennten zweiten Frequenzband verwendenden zweiten Lesegerätes zu dem Entfernungsmessungsmodulator erforderlichen Energie; und ein in Abhängigkeit von der Entfernungsmessung ausgeführtes Energieversorgen eines von der Etikette umfassten Transponders mittels des ersten Lesegerätes und Austauschen von Daten mit dem Transponder. According to a second aspect, a method for detecting an electromagnetic wave tag is claimed comprising the steps of: energizing a range finder in the label area by means of a first reader using a first frequency band having a second frequency band separated from the first frequency range using the second reader to the distance measurement modulator required energy; and an energy supply of a transponder included in the label by means of the first reading device and exchange of data with the transponder as a function of the distance measurement.
Mit den Etiketten können wirksam Objekte markiert und einfach verwaltet werden. Zusätzlich zur Identifikation der Etikette steht nun eine Entfernungsinformation zur Verfügung. With the labels, objects can be effectively marked and easily managed. In addition to the identification of the label, a distance information is now available.
Mit einer erfindungsgemäßen Abstandsmessung zwischen einem Lesegerät und einer RFID-Marke beziehungsweise -Etikette lässt sich ein gewünschter Erfassungsbereich konfigurieren. Es können Aussagen über die jeweiligen Lagen von Objekten oder Gütern gemacht werden. With a distance measurement according to the invention between a reader and an RFID tag or label, a desired detection range can be configured. Statements about the respective positions of objects or goods can be made.
Erfindungsgemäß werden zwei getrennte Frequenzbänder für RFID und eine Entfernungsmessung in einer Marke oder Etikette eingesetzt. Zusätzlich werden alle Modulatoren aus dem elektrischen Feld des ersten Lesegerätes gespeist. According to the invention, two separate frequency bands are used for RFID and distance measurement in one brand or label. In addition, all modulators are fed from the electric field of the first reader.
Weitere vorteilhafte Ausgestaltungen werden in Verbindung mit den Unteransprüchen beansprucht. Further advantageous embodiments are claimed in conjunction with the subclaims.
Gemäß einer vorteilhaften Ausgestaltung kann der Entfernungsmessungsmodulator ein Backscatter-Modulator sein. According to an advantageous embodiment, the distance measuring modulator may be a backscatter modulator.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann der Entfernungsmessungsmodulator an einem den Transponder aufweisenden RFID-Chip integriert sein. Eine Integration kann in oder auf einen jeweiligen Chip ausgeführt sein. According to a further advantageous embodiment, the distance-measuring modulator can be integrated on an RFID chip having the transponder. An integration can be implemented in or on a respective chip.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann der Entfernungsmessungsmodulator von dem ersten Lesegerät indirekt über den Transponder mit Energie versorgt werden. Eine Energieversorgung erfolgt direkt vom Transponder. Diese Energieversorgung kann galvanisch mittels elektrischer Leitungen geschaffen sein. Dies gilt ebenso für eine Ansteuerung des Entfernungsmessungsmodulators von dem Transponder. Dazu können parallele elektrische Kontakte bereitgestellt sein. According to a further advantageous embodiment of the distance measuring modulator of the first reader can be powered indirectly via the transponder with energy. An energy supply takes place directly from the transponder. This power supply can be galvanic means be created electrical lines. This also applies to a control of the distance measuring modulator of the transponder. For this purpose, parallel electrical contacts can be provided.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann das zweite Frequenzband relativ zum ersten Frequenzband zur Bereitstellung einer großen Entfernungsauflösung eine möglichst große Bandbreite aufweisen. According to a further advantageous embodiment, the second frequency band may have the widest possible bandwidth relative to the first frequency band for providing a large range resolution.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann der Entfernungsmessungsmodulator derart an das zweite Frequenzband angepasst sein, dass ein möglichst großer Modulationshub erzeugt wird. According to a further advantageous embodiment, the distance-measuring modulator can be adapted to the second frequency band in such a way that the largest possible modulation deviation is generated.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann der Entfernungsmessungsmodulator von dem Transponder gesteuert sein. According to a further advantageous embodiment, the distance-measuring modulator can be controlled by the transponder.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann der Entfernungsmodulator aktiviert sein, wenn der Transponder moduliert. According to a further advantageous embodiment, the distance modulator can be activated when the transponder is modulated.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann das zweite Lesegerät in das erste Lesegerät integriert sein. According to a further advantageous embodiment, the second reading device can be integrated in the first reading device.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann eine Rechnereinrichtung bereitgestellt sein, die mittels der gemessenen Entfernung den Transponder als relevant oder nicht relevant bewertet. According to a further advantageous embodiment, a computer device can be provided which, by means of the measured distance, rates the transponder as relevant or irrelevant.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann ein Datenaustausch ein Auslesen von Daten aus dem Transponder und/oder ein Einlesen von Daten in den Transponder sein. According to a further advantageous embodiment, a data exchange can be a readout of data from the transponder and / or a read-in of data into the transponder.
Gemäß einer weiteren vorteilhaften Ausgestaltung kann ein Datenaustausch lediglich mit in einem festgelegten Entfernungsbereich zu dem zweiten Lesegerät positionierten Objekten ausgeführt werden. According to a further advantageous embodiment, a data exchange can be carried out only with objects positioned in a defined distance range to the second reading device.
Die Erfindung wird anhand von Ausführungsbeispielen in Verbindung mit den Figuren näher beschrieben. Es zeigen: The invention will be described in more detail by means of exemplary embodiments in conjunction with the figures. Show it:
Claims (13)
Priority Applications (1)
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DE201210202920 DE102012202920A1 (en) | 2012-02-27 | 2012-02-27 | Device for detecting object marked with radio frequency identification label identified by electromagnetic waves, has reading devices with frequency bands for supplying energy to transponder of label and for data exchange with transponder |
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DE201210202920 DE102012202920A1 (en) | 2012-02-27 | 2012-02-27 | Device for detecting object marked with radio frequency identification label identified by electromagnetic waves, has reading devices with frequency bands for supplying energy to transponder of label and for data exchange with transponder |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3219182A1 (en) * | 2016-03-17 | 2017-09-20 | Deere & Company | Device for locating attachment on an agricultural tractor |
DE102016121395A1 (en) * | 2016-04-11 | 2017-10-12 | Leuze Electronic Gmbh + Co. Kg | sensor arrangement |
EP3290948A1 (en) * | 2016-08-31 | 2018-03-07 | Siemens Aktiengesellschaft | Position detecting sensor and system |
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DE102005037582A1 (en) * | 2005-08-09 | 2007-02-22 | Siemens Ag | Locatable and energy self-sufficient backscatter transponder for the acquisition of measured variables |
DE102009008174A1 (en) * | 2009-02-10 | 2010-08-19 | Siemens Aktiengesellschaft | Method and system for determining the distance, the speed and / or the direction of movement of an RFID transponder |
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2012
- 2012-02-27 DE DE201210202920 patent/DE102012202920A1/en not_active Ceased
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DE102005037582A1 (en) * | 2005-08-09 | 2007-02-22 | Siemens Ag | Locatable and energy self-sufficient backscatter transponder for the acquisition of measured variables |
DE102009008174A1 (en) * | 2009-02-10 | 2010-08-19 | Siemens Aktiengesellschaft | Method and system for determining the distance, the speed and / or the direction of movement of an RFID transponder |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3219182A1 (en) * | 2016-03-17 | 2017-09-20 | Deere & Company | Device for locating attachment on an agricultural tractor |
US10605909B2 (en) | 2016-03-17 | 2020-03-31 | Deere & Company | Device for implement localization on an agricultural tractor |
DE102016121395A1 (en) * | 2016-04-11 | 2017-10-12 | Leuze Electronic Gmbh + Co. Kg | sensor arrangement |
EP3290948A1 (en) * | 2016-08-31 | 2018-03-07 | Siemens Aktiengesellschaft | Position detecting sensor and system |
WO2018041515A1 (en) * | 2016-08-31 | 2018-03-08 | Siemens Aktiengesellschaft | Position-sensing sensor and position-sensing system |
CN109642945A (en) * | 2016-08-31 | 2019-04-16 | 西门子股份公司 | Position-detection sensor and system |
US10802132B2 (en) | 2016-08-31 | 2020-10-13 | Siemens Aktiengesellschaft | Position-sensing sensor and position-sensing system |
CN109642945B (en) * | 2016-08-31 | 2023-01-10 | 西门子股份公司 | Position detection sensor and system |
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