DE3027981A1 - Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal - Google Patents

Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal

Info

Publication number
DE3027981A1
DE3027981A1 DE19803027981 DE3027981A DE3027981A1 DE 3027981 A1 DE3027981 A1 DE 3027981A1 DE 19803027981 DE19803027981 DE 19803027981 DE 3027981 A DE3027981 A DE 3027981A DE 3027981 A1 DE3027981 A1 DE 3027981A1
Authority
DE
Germany
Prior art keywords
identification system
frequency
transponder
modulator
identifier
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.)
Granted
Application number
DE19803027981
Other languages
German (de)
Other versions
DE3027981C2 (en
Inventor
Wolfgang Dipl.-Ing. 7930 Ehingen Körner
Wolfgang Dr.-Ing. Menzel
Alfred Dipl.-Ing. Plattner
Bernhard Dr.-Ing. 7910 Neu-Ulm Rembold
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.)
AEG Mobile Communication GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19803027981 priority Critical patent/DE3027981A1/en
Publication of DE3027981A1 publication Critical patent/DE3027981A1/en
Application granted granted Critical
Publication of DE3027981C2 publication Critical patent/DE3027981C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/043—Indicating or recording train identities using inductive tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • G08B13/2417—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags having a radio frequency identification chip
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2451—Specific applications combined with EAS
    • G08B13/2462—Asset location systems combined with EAS
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles

Abstract

The interrogating unit emits two discrete frequencies which are received by the answering unit and transformed into a third frequency by a non-linear circuit. The mixed product, whose frequency is sum or difference, is provided with an identification by a suitable modulator containing the vehicle or track information. The modulated signal is transmitted by the answering unit, received by the interrogating unit and evaluated. The answering unit has a high frequency section, a digital section, and a power supply. The H.F. section has an antenna to receive the two signals (in the region of 30 GHZ) and retransmits the mixed product. The digital section has a storage unit for the vehicle identification, plus a modulator providing the identification for the mixer.

Description

Identifikationssystem bestehend aus einem AbfragegerätIdentification system consisting of an interrogation device

und einem Antwortgerät Die Erfindung betrifft ein Identifikationssystem nach dem Oberbegriff des Anspruchs 1.and a transponder. The invention relates to an identification system according to the preamble of claim 1.

Solche Einrichtungen dienen z. B. bei Gleisfahrzeugen zur Automatisierung des Betriebes sowie zur Sicherung des Streckennetzes.Such facilities are used for. B. in rail vehicles for automation of operation as well as to secure the route network.

In der Literatur sind ähnliche Einrichtungen bekannt.Similar devices are known in the literature.

Z. B. strahlt beim SICARID-UCL-System eine fahrzeugseitige Sendeeinrichtung eines Abfragegerätes ein hochfrequentes, gewobbeltes Abfragesignal aus, das durch frequenzselektive Reflexion mit Hilfe an einer Schiene eines Eisenbahngleises angeordneter Antwortgeräte die in diesen jeweils verschlüsselte Streckeninformation an eine Empfangseinrichtung des Abfragegerätes überträgt. Ein nach diesem Prinzip arbeitendes ähnliches Verfahren, bei dem Antwort- und Fragegerät vertauscht sind, dient z. B. zur Identifikation von Güterwagen.For example, in the SICARID-UCL system, a vehicle-side transmitter emits an interrogation device emits a high-frequency, wobbled interrogation signal that is transmitted by frequency-selective reflection with the help of a rail of a railroad track Responders send the route information encrypted in these to a receiving device of the interrogation device. One that works according to this principle similar Method in which the answering device and questioning device are interchanged, is used, for. B. for identification of freight wagons.

Der Erfindung liegt die Aufgabe zugrunde, ein weiteres System der eingangs genannten Art anzugeben, das sich durch einfachen Aufbau auszeichnet.The invention is based on the object of a further system of Specify the type mentioned at the beginning, which is characterized by its simple structure.

Die Erfindung ist im Patentanspruch 1 beschrieben. Die weiteren Ansprüche beinhalten vorteilhafte Weiterbildungen bzw. Ausführungsformen der Erfindung.The invention is described in claim 1. The other claims contain advantageous developments or embodiments of the invention.

Der Erfindung zugrunde liegt das Prinzip, daß das abfragende Gerät zwei diskrete Frequenzen abstrahlt, die vom antwortenden Gerät empfangen und mit Hilfe einer nichtlinearen Schaltungsanordnung in eine dritte Frequenz umgesetzt werden. Dieses Mischprodukt, dessen Frequenz z. B. die Summe oder die Differenz der beiden empfangenen Frequenzen sein kann, wird im Antwortgerät durch eine geeignete Modulation, z. B. ASK, mit einer Kennung versehen, die die Fahrzeuginformation bzw. die Streckeninformation enthält. Das so modulierte Signal wird vom Antwortgerät abgestrahlt und vom Abfragegerät empfangen und ausgewertet.The invention is based on the principle that the querying device emits two discrete frequencies that are received by the answering device and with Implemented into a third frequency using a non-linear circuit arrangement will. This mixed product, the frequency of which z. B. the sum or the difference of the two received frequencies is indicated in the transponder by a suitable one Modulation, e.g. B. ASK, provided with an identifier that contains the vehicle information or contains the route information. The signal modulated in this way is transmitted by the transponder emitted and received and evaluated by the interrogation device.

Bei der Realisierung des Identifikationssystems bringt die Verwendung von Frequenzen im Millimeterwellenbereich, z. B. bei 40 oder 60 GHz, besondere Vorteile, weil bei kleinen Antennenabmessungen eine hohe Strahlbündelung und damit verbunden ein hoher Wirkungsgrad bei der teistungsübertragung zwischen den beiden Geräten möglich ist. Infolge der atmosphärischen Dämpfung z. B. bei 60 GHz klingen die Signale bei weiterer Entfernung sehr rasch ab, so daß eine Störung anderer Systeme verhindert wird.When realizing the identification system brings the use of frequencies in the millimeter wave range, e.g. B. at 40 or 60 GHz, special advantages, because with small antenna dimensions a high beam bundling and associated with it a high degree of efficiency in the transfer of power between the two devices is possible. As a result of the atmospheric damping z. B. at 60 GHz the signals sound decreases very quickly with further distance, so that a disturbance of other systems is prevented will.

Ein weiterer Vorteil der hohen Strahlbüadelung ergibt sich aus der Möglichkeit, die vom Äbfragegerät abgestrahlte Leistung zum Teil zur Gleichstromversorgung des Antwortgerätes zu verwenden. Als Alternative hierfür ist auch eine Versorgung mit Solarzellen möglich.Another advantage of the high beam loading results from the Possibility to use part of the power emitted by the query device for direct current supply of the transponder. As an alternative to this, there is also a supply possible with solar cells.

Das Antwortgerät besteht vorzugsweise aus einem Hochfrequenzteil, einem Digitalteil und einer Stromversorgung, wie in der FIG. dargestellt.The transponder preferably consists of a high-frequency part, a digital part and a power supply as shown in FIG. shown.

Der Hochfrequenzteil setzt sich im wesentlichen zusammen aus einer Antenne oder einer Antennengruppe, die die zwei Signale, z. B. bei 30 GHz empfängt und das Mischprodukt wieder abstrahlt, sowie aus einem Frequenzumsetzer, der aus einem Abwärts- bzw. Aufwärtsumsetzer bestehen kann.The high-frequency part is essentially composed of one Antenna or group of antennas that transmit the two signals, e.g. B. receives at 30 GHz and emits the mixed product again, as well as from a frequency converter, which from may consist of a down converter or up converter.

Im Digitalteil befinden sich im wesentlichen eine Einrichtung zur Speicherung der Fahrzeug- bzw. Fahrortskennung sowie ein Modulator, welcher das Mischprodukt mit der entsprechenden Kennung versieht Diese Funktionen können durch ein RAM mit einem entsprechenden Adresszähler und einem vom RAM gesteuerten Schalter, der auf den Frequenzumsetzer einwirkt, ausgeübt werden. Alternativ hierzu besteht die Möglichkeit, einen Kodierschalter und Multiplexer zu verwenden. Hierbei dient der Kodierschalter als Speicher für die Kennung und der Multiplexer in Verbindung mit dem Frequenzumsetzer als Modulator.In the digital part there is essentially a device for Storage of the vehicle or driving location identification as well as a modulator, which the The mixed product is provided with the appropriate identifier. These functions can be carried out by a RAM with a corresponding address counter and a switch controlled by the RAM, acting on the frequency converter. Alternatively, there is the possibility of using a coding switch and multiplexer. This serves the coding switch as a memory for the identifier and the multiplexer in connection with the frequency converter as a modulator.

Eine vorteilhafte Variante für den Kodierschalter stellt die Verwendung eines Lochkartenlesers dar, der die Kennung aus einer auswechselbaren Lochkarte bezieht.Use is an advantageous variant for the coding switch a punch card reader, the identifier from an exchangeable punch card relates.

Claims (10)

Patentansprüche C Identifikationssystem, insbesondere zum automatischen Erkennen von Fahrzeugen oder zur automatischen Fahrortsbestimmung, bestehend aus einem Abfragegerät und einem Antwortgerät, dadurch gekennzeichnet, daß das Abfragegerät zwei Sender und einen Empfänger aufweist, daß die Sender Leistung auf zwei diskreten Frequenzen ausstrahlen, daß das Antwortgerät die beiden diskreten Frequenzen empfängt, diese frequenzmäßig mischt, und das Mischprodukt nach Modulation mit einer geeigneten Kennung wieder abstrahlt, und daß der Empfänger des Abfragegerätes das vom Antwortgerät ausgestrahlte Mischprodukt empfängt und die Kennung auswertet.Claims C Identification system, in particular for the automatic Detection of vehicles or for automatic location determination, consisting of an interrogator and an answering device, characterized in that the interrogator has two transmitters and a receiver that the transmitter power on two discrete Broadcast frequencies so that the transponder receives the two discrete frequencies, this mixes in terms of frequency, and the mixed product after modulation with a suitable one The identifier is emitted again, and that the receiver of the interrogator receives that from the transponder receives broadcast mixed product and evaluates the identifier. 2. Identifikationssystem nach Anspruch 1, dadurch gekennzeichnet, daß es im Nillimeterwellenbereich arbeitet.2. Identification system according to claim 1, characterized in that that it works in the millimeter wave range. 3. Identifikationssystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Antwortgerät aus einem Hochfrequenzteil, einem Digitalteil und einer Gleichspannungsversorgung besteht, daß der Hochfrequenzteil eine oder mehrere Antennen und einen Frequenzumsetzer aufweist, und daß der Digitalteil einen Speicher für die Kennung sowie einen Modulator aufweist.3. Identification system according to claim 1 or 2, characterized in that that the transponder consists of a high-frequency part, a digital part and a DC voltage supply consists that the high frequency part has one or more antennas and a frequency converter has, and that the digital part has a memory for the identifier and a modulator having. 4. Identifikationssystem nach Anspruch 3, dadurch gekennzeichnet, daß der Frequenzumsetzer ein Abwärtsmischer ist.4. Identification system according to claim 3, characterized in that that the frequency converter is a down converter. 5. Identifikationssystem nach Anspruch 3, dadurch gekennzeichnet, daß der Frequenzumsetzer ein Aufwärtsmischer ist.5. Identification system according to claim 3, characterized in that that the frequency converter is an up-converter. 6. Identifikationssystem nach Anspruch 3, dadurch gekennzeichnet, daß der Speicher ein RAM sowie einen Adresszähler beinhaltet, und daß der Modulator durch einen Schalter realisiert ist.6. Identification system according to claim 3, characterized in that that the memory contains a RAM and an address counter, and that the modulator is realized by a switch. 7. Identifikationssystem nach Anspruch 3, dadurch gekennzeichnet, daß der Speicher und der Modulator aus einem Kodierschalter und einem Multiplexer bestehen.7. Identification system according to claim 3, characterized in that that the memory and the modulator consist of a coding switch and a multiplexer exist. 8. Identifikationssystem nach Anspruch 7, dadurch gekennzeichnet, daß der Kodierschalter ein Lochkartenleser ist.8. Identification system according to claim 7, characterized in that that the coding switch is a punch card reader. 9. Identifikationssystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Gleichspannungsversorgung im Antwortgerät aus einem Teil der empfangenen HF-Leistung abgeleitet ist.9. Identification system according to one of the preceding claims, characterized in that the DC voltage supply in the transponder consists of one Part of the received RF power is derived. 10. Identifikationssystem nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Gleichspannungsversorgung im Antwortgerät durch Solarzellen erfolgt.10. Identification system according to one of claims 1 to 8, characterized characterized in that the DC voltage supply in the transponder by solar cells he follows.
DE19803027981 1980-07-24 1980-07-24 Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal Granted DE3027981A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803027981 DE3027981A1 (en) 1980-07-24 1980-07-24 Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803027981 DE3027981A1 (en) 1980-07-24 1980-07-24 Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal

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DE3027981A1 true DE3027981A1 (en) 1982-02-25
DE3027981C2 DE3027981C2 (en) 1988-08-25

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111591A1 (en) * 1982-12-23 1984-06-27 ANT Nachrichtentechnik GmbH Device for the transmission of information between objects passing one another
EP0150382A2 (en) * 1984-01-18 1985-08-07 ANT Nachrichtentechnik GmbH Informations transmitting system
EP0199162A2 (en) * 1985-04-20 1986-10-29 ANT Nachrichtentechnik GmbH Information transmission system
FR2645309A1 (en) * 1989-04-04 1990-10-05 Usil Flandres Artois DEVICE FOR DETECTING THE PASSAGE OF AT LEAST ONE MOBILE AT AT LEAST ONE POINT DETERMINED BY ITS MOVEMENT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111591A1 (en) * 1982-12-23 1984-06-27 ANT Nachrichtentechnik GmbH Device for the transmission of information between objects passing one another
EP0150382A2 (en) * 1984-01-18 1985-08-07 ANT Nachrichtentechnik GmbH Informations transmitting system
EP0150382A3 (en) * 1984-01-18 1985-10-02 Ant Nachrichtentechnik Gmbh Informations transmitting system
EP0199162A2 (en) * 1985-04-20 1986-10-29 ANT Nachrichtentechnik GmbH Information transmission system
EP0199162A3 (en) * 1985-04-20 1988-09-14 Ant Nachrichtentechnik Gmbh Information transmission system
FR2645309A1 (en) * 1989-04-04 1990-10-05 Usil Flandres Artois DEVICE FOR DETECTING THE PASSAGE OF AT LEAST ONE MOBILE AT AT LEAST ONE POINT DETERMINED BY ITS MOVEMENT
EP0391775A1 (en) * 1989-04-04 1990-10-10 Universite Des Sciences Et Techniques De Lille Flandres-Artois (U.S.T.L.) Device for the detection of the passage of at least one moving body at at least one determinate point of its displacement
US5068655A (en) * 1989-04-04 1991-11-26 Universite Des Sciences Et Techniques De Lille (U.S.T.L.) Flandres Artois Device for detecting the passage of at least one mobile body in at least one location fixed by its travel

Also Published As

Publication number Publication date
DE3027981C2 (en) 1988-08-25

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Owner name: AEG MOBILE COMMUNICATION GMBH, 7900 ULM, DE

8339 Ceased/non-payment of the annual fee