EP1425705A1 - Dispositif de lecture a transpondeur mobile - Google Patents

Dispositif de lecture a transpondeur mobile

Info

Publication number
EP1425705A1
EP1425705A1 EP02777094A EP02777094A EP1425705A1 EP 1425705 A1 EP1425705 A1 EP 1425705A1 EP 02777094 A EP02777094 A EP 02777094A EP 02777094 A EP02777094 A EP 02777094A EP 1425705 A1 EP1425705 A1 EP 1425705A1
Authority
EP
European Patent Office
Prior art keywords
transponder
processing
transmitting
base station
receiving device
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.)
Withdrawn
Application number
EP02777094A
Other languages
German (de)
English (en)
Inventor
Harald Buchmann
Gerald Dittrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brooks Automation Germany GmbH
Original Assignee
Brooks Automation Germany GmbH
Hermos Informatik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brooks Automation Germany GmbH, Hermos Informatik GmbH filed Critical Brooks Automation Germany GmbH
Publication of EP1425705A1 publication Critical patent/EP1425705A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10346—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 using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
    • 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
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • 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
    • G06K7/10366—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 the interrogation device being adapted for miscellaneous applications
    • G06K7/10376—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 the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable
    • G06K7/10386—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 the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable the interrogation device being of the portable or hand-handheld type, e.g. incorporated in ubiquitous hand-held devices such as PDA or mobile phone, or in the form of a portable dedicated RFID reader

Definitions

  • the present invention comprises a mobile reading device for reading information from a transponder.
  • Transponders are passive components that are used to identify objects to be processed and / or to be transported. Each transponder is either attached to the object itself or to a container containing the object. Information is stored or contained in the transponder that can be read out by appropriate transponder readers.
  • a transponder is usually permanently assigned to each container or object. For example, in the production of silicon wafers that are transported in plastic containers, the respective transponder can be welded into the respective plastic container or attached to it in a corresponding holding device.
  • the transponder readers are stationary in the transport chain or processing chain for the objects at the transport or processing stations. These stationary transponder readers are available as read-only or read-write devices.
  • the transponders are also available as read-only or read-write transponders. In the read-only version, the transponders are usually supplied by the manufacturer with guaranteed unique identification information, e.g. a number. During use, the transponders are then read out by stationary read-only devices at the respective processing or transport stations.
  • the transponders can not only be read by stationary read / write devices at the transport or processing stations, but can also be written with corresponding new information, such as information relating to the processing status, etc.
  • the transponder readers arranged in the transport or processing stations are generally connected by means of a wire-bound network to a central control computer, to which updated transport or processing steps relating to each transponder or the object assigned to a transponder are communicated.
  • the corresponding information can be used to control the processing and transport of the objects carrying the transponders, or only for display and monitoring.
  • the transponders can be used to identify objects such as pallets, trays, magazines, boxes, warms or Works or vehicles can also be used.
  • transport and processing steps of the objects identified by the transponders can be monitored in a simple and efficient manner and, if necessary, controlled.
  • the disadvantage of the system for controlling and monitoring the transport or the processing of objects explained above by means of transponders attached to the objects and stationary transponder readers is that the information contained in the individual transponders is not accessible while the objects or the Containers containing objects are moved from one processing or transport station to the next. This is particularly the case if the objects carrying the transponders are temporarily stored between processing steps.
  • the arrangement of a stationary transponder reader at every storage location would be far too complex and expensive.
  • the known systems therefore do not make it possible to identify objects carrying transponders at any time or to search for and locate lost objects. If an object carrying a transponder is parked in the wrong place, or if the information about where the object was stored is lost, it is no longer possible to locate or identify this object.
  • the object of the present invention is therefore to provide a device which makes it possible to search for, detect and check objects carrying transponders at any time.
  • the object is achieved by a mobile reading device for reading information from a transponder according to claim 1.
  • the mobile reading device according to the invention comprises a first transmitting and receiving device for transmitting a readout signal to a transponder and for receiving a response signal sent by a transponder in response to the readout signal with identification information for identifying the transponder, the first transmitting and receiving device being wireless and on the Based on electromagnetic waves in a first frequency range.
  • the mobile reading device according to the invention further comprises a second transmitting and receiving device for wireless communication with a base station based on electromagnetic waves in a second frequency range, the second transmitting and receiving device sending the identification information received by the first transmitting and receiving device in the response signal to the Base station transmitted.
  • the mobile reading device therefore enables objects carrying transponders to be tracked down and checked at any time.
  • the first transmitting and receiving device reads out the identification information contained in the transponder and transmits the identification information to a base station via the second transmitting and receiving device.
  • the base station is advantageously connected to a network that contains a central computer for storing and managing information relating to the processing of the objects carrying the transponders.
  • the stationary transponder readers are also advantageously connected to the network at the transport or processing stations.
  • the mobile reading device advantageously comprises a microcontroller for converting the identification information contained in the response signal into a signal format to be transmitted to a base station by the second transmitting and receiving device.
  • the second transmitting and receiving device receives processing information relating to the processing of the transponder, which is sent by the base station in response to transmitted identification information.
  • the mobile reading device advantageously has a display device for displaying those received by the base station. Processing information on.
  • the communication between the first transmitting and receiving device and the transponder advantageously takes place on the basis of frequency-modulated signals.
  • the communication between the first transmitting and receiving device and the transponder takes place on the basis of amplitude-modulated signals.
  • the first frequency range is advantageously in the range of a few hundred kHz. Alternatively, it can be advantageous if the first frequency range is in the range of a few MHz.
  • the second transmitting and receiving device advantageously communicates with the base station on the basis of the DECT standard. Alternatively, this communication can also take place on the basis of the wireless LAN standard (2.4 GHz).
  • the second frequency range is also advantageously in the range of a few GHz.
  • the present invention further relates to a network for monitoring transponder-carrying objects, with a plurality of base stations for communicating with mobile reading devices according to the present 'invention and a central computer for storing and managing information relating to the processing of the objects carrying the transponder, the central computer during reception processing information relating to the respective transponder is transmitted back to the base station by identification information from a base station.
  • the central computer is advantageously connected to a processing station for processing the objects carrying transponders, each processing station comprising a processing device for detecting the respective processing state of an object carrying a transponder at the processing station and for transmitting corresponding processing information to the central computer.
  • an operating information computer is advantageously provided for controlling the communication between the central computer and the base stations.
  • the mobile reading device enables the search, detection and identification of objects carrying transponders in a simple and efficient manner, independently of stationary transponder reading devices.
  • an operator can read the identification information contained in a transponder for identifying the object carrying the transponder at any time and at any point and transmit it wirelessly to a base station.
  • the reading device according to the invention is not assigned to a fixed base station, but the base station currently best to be reached is dynamically assigned and communicated with.
  • the use of electromagnetic waves for the transmission of information between the mobile reading device and the base station is advantageous, since no direct line of sight is necessary, as with other transmission options. This is particularly advantageous in confusing production, factory or warehouse halls.
  • the display device in the mobile reading device is particularly advantageous if, in response to transmitted identification information, processing information relating to the object carrying the transponder is transmitted from the base station.
  • This processing information can be displayed on the display device, so that the operator immediately obtains knowledge of the processing state in which the object carrying the transponder or the objects to be processed contained in the object are.
  • the one on the base station Transmitted processing information can contain information regarding processing steps that have already been processed and / or regarding future processing steps.
  • the use of the DECT standard or the wireless LAN standard as the basis for communication between the mobile reading device and the base station has the advantage of a relatively inexpensive but nevertheless simple and reliable technology.
  • the typical ranges of transmission systems operating on the basis of these standards and the transmission rates are sufficient for the purposes of the application of the present invention, so that this technology is advantageously used.
  • the flow of information between the base stations and the mobile reading devices can be implemented and adapted on the one hand by the customer's central computer on the other hand in a simple manner by means of the optional operating information computer, without different for the different customer's central computer systems
  • Fig. 1 is a schematic block diagram of a mobile according to the invention
  • Fig. 2 is a block diagram of a network according to the invention.
  • the mobile reading device 1 shows a schematic block diagram of a mobile reading device 1 according to the present invention and an object 9 carrying a transponder 10.
  • the mobile reading device 1 is used to read information, such as identification information, from the transponder 10 and for this purpose comprises a first transmission and Receiving device 2 for transmitting a readout signal to the transponder 10 and for receiving a response signal sent by the transponder 10 in response to the readout signal.
  • the response signal of the transponder 10 can, for. B. contain identification information that uniquely identifies the transponder 10.
  • the first transmitting and receiving device 2 communicates with the transponder 10 wirelessly and on the basis of electromagnetic waves in a first Frequency range.
  • the communication between the first transmitting and receiving device 2 and the transponder 10 can take place on the basis of amplitude or frequency modulated signals.
  • the use of frequency-modulated signals has the disadvantage that the transponder requires a capacitor for storing and delaying the energy transmitted by the first transmitting and receiving device with the read-out signal, which makes the transponder 10 somewhat more expensive.
  • the advantage is the greater range of up to 5 meters, for example.
  • the use of amplitude-modulated signals enables a simpler and lighter design of the transponder 10. Since the transmitting and receiving device continuously sends out readout signals while the transponder 10 transmits a response signal, the self-interference results in a shorter range of, for example, a maximum of 2 meters.
  • the communication between the first transmitting and receiving device 2 and the transponder 10 can take place either in a low frequency range of approximately 134 kHz or in a high frequency range of approximately 13 MHz.
  • the mobile reading device 1 can also be equipped with a plurality of transmitting and receiving devices 2 for communicating with several transponders of different types ,
  • the mobile reading device 1 further comprises a second transmitting and receiving device 3 for wireless communication with one or more base stations 14, 15, 16, 17 (as shown in FIG. 2) on the basis of electromagnetic waves in a second frequency range.
  • the identification information received by the transponder 10 in the response signal by the first transmitting and receiving device 2 is transmitted by the second transmitting and receiving device 3 to a respectively assigned base station 14, 15, 16, 17.
  • a microcontroller 6 is provided in the mobile reading device 1, which also controls the further functions of the reading device 1.
  • the mobile reader 1 further includes a display device 4, such as. B. an LCD display for displaying the identification information or other information received by the second transmitting and receiving device 3 from a base station 14, 15, 16, 17, and an input device 5, such as. B. a keyboard through which an operator, for example, operating states of the mobile reader 1 can choose, such as B. the transmission of a read-out signal by the first transmitting and receiving device to a transponder 10 and the like.
  • a display device 4 such as. B. an LCD display for displaying the identification information or other information received by the second transmitting and receiving device 3 from a base station 14, 15, 16, 17, and an input device 5, such as. B. a keyboard through which an operator, for example, operating states of the mobile reader 1 can choose, such as B. the transmission of a read-out signal by the first transmitting and receiving device to a transponder 10 and the like.
  • the mobile reading device 1 comprises a memory 7 connected to the microcontroller 6 and the further components for storing information and / or control programs. Furthermore, an accumulator or a battery 8 is provided, which supplies the microcontroller 6 and the other components of the mobile reading device 1 with energy.
  • the mobile reader 1 is advantageously with a lightweight housing, for. B. made of plastic, in which the components described above are included. The components described are also advantageously of a design which is as light as possible and consumes little power.
  • the size and the weight of the mobile reading device 1 according to the present invention is advantageously such that an operator can easily carry the mobile reading device 1 in one hand and operate it with one hand.
  • the network 11 according to the invention can be used, for example, to monitor and control several containers containing silicon wafer as the objects 9 which are processed or manufactured in a hall.
  • a transponder 10 is attached to each of the containers, which uniquely identifies the respective container.
  • the respective processing and transport steps are controlled and managed by a central computer 12.
  • a processing device 19 for detecting the respective processing state of the object 9 is provided at each processing station 18 for processing the transponder 10 carrying objects 9 such. B. silicon wafer.
  • the processing device 19 is, for. B.
  • the network 11 therefore comprises — although not shown — a plurality of such processing stations 18, which are usually started automatically by objects 9 carrying transponders 10 one after the other.
  • an operator can read out the identification information from the respective transponder 10 of the object 9 to the central computer in a simple manner by means of the mobile reading device 1 according to the invention 12 and receive information from them regarding the steps already completed and the next processing steps.
  • This is made possible by a number of base stations 14, 15, 16, 17, which are connected to the central computer 12 via an operating information computer 13.
  • the operating information computer 13 need not necessarily be provided, but the assigned functions can be taken over by the central computer 12 and / or the base stations.
  • the mobile reading device 1 determines the identification information read out from a transponder 10 via the second transmitting and receiving device 3 to the respectively assigned, usually the closest base station 14, 15, 16 or 17, via which the identification information is forwarded to the operating information computer 13.
  • the base stations 14, 15, 16, 17 communicate with the mobile reading device or devices 1 on the basis of the DECT standard (Digital European Cordless Telephone Standard) or the wireless LAN standard.
  • the frequency range of this communication is around 1.9 MHz (or 2.4 GHz), with data transmission in time-division multiplex on 10 channels.
  • the range is up to 50 meters in the building and up to 300 meters in free space with a direct line of sight between the mobile reader 1 and the base station.
  • the operational information computer 13 converts the identification information from the data transmission standard used for the communication between the base stations 14, 15, 16, 17 and the mobile reading device 1 into the respective operational data standard of the central computer 12. The same applies to the information output by the central computer 12 in response to an incoming identification information relating to the completed and future processing steps of the respective object 9, which are given to the operating information computer 13, implemented by the latter and transmitted to the mobile reading device 1 via the corresponding base station and the Operator can be shown there on the display device 4.
  • a stationary holding and charging station (not shown) can be provided for each mobile reading device 1, into which the respective mobile reading device 1 is inserted and charging while not in use.
  • the stationary holding and charging stations can be coupled to the network 11 either wirelessly or by wire, so that an operator, if he wants to use a mobile reading device 1, may only use this after entering a personal code word.
  • the release of the mobile reading devices 1 in the corresponding holding and charging stations can be controlled by the central computer.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un dispositif de lecture mobile (1) destiné à la lecture d'informations issues d'un transpondeur (10), comprenant un premier système d'émission-réception (2) destiné à l'émission d'un signal de lecture à un transpondeur (10), et à la réception d'un signal de réponse envoyé par un transpondeur (10) en réponse au signal de lecture, avec des informations d'identification permettant l'identification du transpondeur (10), le premier système d'émission-réception (2) fonctionnant par voie hertzienne à partir d'ondes électromagnétiques dans une première plage de fréquences. L'appareil de lecture (1) comprend également un second système d'émission-réception (3) destiné à la communication hertzienne avec une station de base à partir d'ondes électromagnétiques dans une seconde plage de fréquences, le second système d'émission-réception (3) transmettant les informations d'identification reçues par le premier système d'émission-réception dans le signal de réponse, à la station de base.
EP02777094A 2001-09-14 2002-09-13 Dispositif de lecture a transpondeur mobile Withdrawn EP1425705A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10145498 2001-09-14
DE10145498A DE10145498C2 (de) 2001-09-14 2001-09-14 Mobiles Transponder-Lesegerät und Netzwerk zum Überwachen von transpondertragenden Objekten
PCT/EP2002/010308 WO2003025834A1 (fr) 2001-09-14 2002-09-13 Dispositif de lecture a transpondeur mobile

Publications (1)

Publication Number Publication Date
EP1425705A1 true EP1425705A1 (fr) 2004-06-09

Family

ID=7699138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02777094A Withdrawn EP1425705A1 (fr) 2001-09-14 2002-09-13 Dispositif de lecture a transpondeur mobile

Country Status (7)

Country Link
US (1) US20040267545A1 (fr)
EP (1) EP1425705A1 (fr)
JP (1) JP2005503618A (fr)
KR (1) KR100872501B1 (fr)
CN (1) CN1555541A (fr)
DE (1) DE10145498C2 (fr)
WO (1) WO2003025834A1 (fr)

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Also Published As

Publication number Publication date
KR100872501B1 (ko) 2008-12-08
KR20040044898A (ko) 2004-05-31
JP2005503618A (ja) 2005-02-03
US20040267545A1 (en) 2004-12-30
CN1555541A (zh) 2004-12-15
WO2003025834A1 (fr) 2003-03-27
DE10145498C2 (de) 2003-08-07
DE10145498A1 (de) 2003-04-17

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