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GB1187130A - Improvements in or relating to Vehicle Identification Systems. - Google Patents

Improvements in or relating to Vehicle Identification Systems.

Info

Publication number
GB1187130A
GB1187130A GB5609167A GB5609167A GB1187130A GB 1187130 A GB1187130 A GB 1187130A GB 5609167 A GB5609167 A GB 5609167A GB 5609167 A GB5609167 A GB 5609167A GB 1187130 A GB1187130 A GB 1187130A
Authority
GB
UNITED KINGDOM
Prior art keywords
frequency
code
responder
aerial
carrier
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.)
Expired
Application number
GB5609167A
Inventor
John Edwin Ryley
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB5609167A priority Critical patent/GB1187130A/en
Publication of GB1187130A publication Critical patent/GB1187130A/en
Priority claimed from GB3023172A external-priority patent/GB1427920A/en
Priority claimed from GB610375A external-priority patent/GB1545045A/en
Application status is Expired legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04Indicating or recording train identities
    • B61L25/045Indicating or recording train identities using reradiating tags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04Indicating or recording train identities
    • B61L25/043Indicating or recording train identities using inductive tags
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual entry or exit registers
    • G07C9/00007Access-control involving the use of a pass
    • G07C9/00111Access-control involving the use of a pass the pass performing a presence indicating function, e.g. identification tag or transponder

Abstract

1,187,130. Track apparatus. PLESSEY CO. Ltd. 2 Dec., 1968 [9 Dec., 1967], No. 56091/67. Heading B7N. [Also in Division H4] In a vehicle identification system of the type in which a responder carried by a moving vehicle is energized by inductively coupled power from an interrogating unit and produces a serial binary code to identify the vehicle, the data transfer from the responder to the interrogating unit is effected at a carrier frequency derived by division or multiplication of the frequency at which power is transferred to the responder. As described, at the interrogating unit power at a frequency F from an oscillator 1 is transmitted via aerial 2 to the aerial 3 of the responder where it is rectified at 4 to provide power for operating the responder. The frequency F is divided at 5 to supply a carrier of frequency F/A to a phase modulator 8 and is divided again at 6 to provide a clock frequency F/AB controlling a binary code generator 7. The generator 7 supplies a cyclically repeated signal comprising a " start of message " code common to all the vehicles and consisting of a series of binary digits which in their normal or inverted form cannot occur within any of the identification code sequences followed by an identification signal which uses a " two out of five " code. Each time a " 1 " is generated at 7 the modulator 8 phase shifts the carrier by 180 degrees and the modulated carrier is coupled via aerial 10 to aerial 11 at the interrogator unit and supplied to a demodulator 13. A reference signal F/A for the demodulator is supplied by a frequency divider 12 and clock pulses are supplied via a frequency divider 17 which is controlled by a data transition detector 16. A " start of message " code recognition circuit determines whether this code is in its correct or inverted form and if it is inverted applies 180 degrees phase correction to the reference signal derived at 12.
GB5609167A 1967-12-09 1967-12-09 Improvements in or relating to Vehicle Identification Systems. Expired GB1187130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5609167A GB1187130A (en) 1967-12-09 1967-12-09 Improvements in or relating to Vehicle Identification Systems.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB5609167A GB1187130A (en) 1967-12-09 1967-12-09 Improvements in or relating to Vehicle Identification Systems.
FR1598338D FR1598338A (en) 1967-12-09 1968-12-06
DE19681813319 DE1813319C3 (en) 1967-12-09 1968-12-07
GB3023172A GB1427920A (en) 1967-12-09 1972-06-28 Identification systems
GB610375A GB1545045A (en) 1967-12-09 1975-02-13 Animal identification systems
FR7603816A FR2301135A2 (en) 1967-12-09 1976-02-12 System for vehicle identification

Publications (1)

Publication Number Publication Date
GB1187130A true GB1187130A (en) 1970-04-08

Family

ID=10475705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5609167A Expired GB1187130A (en) 1967-12-09 1967-12-09 Improvements in or relating to Vehicle Identification Systems.

Country Status (3)

Country Link
DE (1) DE1813319C3 (en)
FR (1) FR1598338A (en)
GB (1) GB1187130A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920263A1 (en) * 1978-05-19 1979-11-29 Philips Nv detection system
FR2425683A1 (en) * 1978-05-12 1979-12-07 Siemens Ag System prohibiting penetration into dangerous areas of underground mining facilities
JPS58151722A (en) * 1982-03-05 1983-09-09 Arimura Giken Kk Data transmitter containing no carrier oscillator
US4631708A (en) * 1981-12-18 1986-12-23 Senelco Limited Transmitter/responder systems
US4674618A (en) * 1983-12-06 1987-06-23 Mars Incorporated Tokens and token handling devices
DE3832409A1 (en) * 1987-09-26 1989-04-06 Matsushita Electric Works Ltd Diskriminatoranordnung for moving objects
GB2239571A (en) * 1989-12-29 1991-07-03 Schlumberger Ind Ltd Transponder
WO2005015377A2 (en) * 2003-07-24 2005-02-17 Adentis Method and system for gestural control of an apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200138A (en) * 1982-01-14 1983-08-01 Nedap Nv Detection system.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425683A1 (en) * 1978-05-12 1979-12-07 Siemens Ag System prohibiting penetration into dangerous areas of underground mining facilities
DE2920263A1 (en) * 1978-05-19 1979-11-29 Philips Nv detection system
FR2426361A1 (en) * 1978-05-19 1979-12-14 Philips Nv Electromagnetic detection system of labels attached particular goods
US4631708A (en) * 1981-12-18 1986-12-23 Senelco Limited Transmitter/responder systems
JPS58151722A (en) * 1982-03-05 1983-09-09 Arimura Giken Kk Data transmitter containing no carrier oscillator
JPH0325832B2 (en) * 1982-03-05 1991-04-09 Arimura Inst Technology
US4674618A (en) * 1983-12-06 1987-06-23 Mars Incorporated Tokens and token handling devices
US4926996A (en) * 1983-12-06 1990-05-22 Mars Incorporated Two way communication token interrogation apparatus
DE3832409A1 (en) * 1987-09-26 1989-04-06 Matsushita Electric Works Ltd Diskriminatoranordnung for moving objects
GB2239571A (en) * 1989-12-29 1991-07-03 Schlumberger Ind Ltd Transponder
GB2239571B (en) * 1989-12-29 1994-08-03 Schlumberger Ind Ltd Transponder
WO2005015377A2 (en) * 2003-07-24 2005-02-17 Adentis Method and system for gestural control of an apparatus
WO2005015377A3 (en) * 2003-07-24 2005-06-30 Adentis Method and system for gestural control of an apparatus

Also Published As

Publication number Publication date
DE1813319C3 (en) 1980-09-18
DE1813319B2 (en) 1980-01-24
FR1598338A (en) 1970-07-06
DE1813319A1 (en) 1969-09-11

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years