GB1462054A - Fault detection apparatus - Google Patents

Fault detection apparatus

Info

Publication number
GB1462054A
GB1462054A GB4174173A GB4174173A GB1462054A GB 1462054 A GB1462054 A GB 1462054A GB 4174173 A GB4174173 A GB 4174173A GB 4174173 A GB4174173 A GB 4174173A GB 1462054 A GB1462054 A GB 1462054A
Authority
GB
United Kingdom
Prior art keywords
transponder
receiver
identification
loop
fault detection
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
GB4174173A
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.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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 National Research Development Corp UK, National Research Development Corp of India filed Critical National Research Development Corp UK
Priority to GB4174173A priority Critical patent/GB1462054A/en
Publication of GB1462054A publication Critical patent/GB1462054A/en
Expired 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
    • 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
    • G06K7/10336—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 near field type, inductive coil
    • 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 trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/043—Indicating or recording train identities using inductive tags
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders
    • 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
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

1462054 Testing transponder systems; inductive signalling NATIONAL RESEARCH DEVELOPMENT CORP 27 Aug 1974 [5 Sept 1973] 41741/73 Headings H4L and H4U Fault detection apparatus for object identification systems, e.g. for road use charging of vehicles, identification of railway vehicles, aircraft or packages moving on a conveyer, in which a transponder on each object transmits an identification code signal comprises a transmitter 18 for transmitting, e.g., by radio or by line connections, either continuously or periodically a coded signal to a receiver 16 also receiving signals from the object transponder, an arrangement 19 for interrupting transmission by 18 when an object is near the receiver and an alarm device 23, 24 for disabling the receiver and/or giving an alarm if with 18 transmitting, the system does not correctly indicate the transmitted code. Each object transponder is powered by energy coupled from a loop 13 energized by a transmitter 15. The object transponder converts the received signals to a carrier phase modulated by an identification code signal. The received signals are demodulated at 16 to obtain the original code signal which is checked and stored in a register 17. For fault detection, the code transmitted by 18 is detected at 16 and applied via an AND gate 22 to an equivalence circuit 23 for comparison with the reference code stored in the register 17 or an output register (not shown). The detector arrangement 19 may be associated with an auxiliary loop 12 or with the loop 13 itself.
GB4174173A 1973-09-05 1973-09-05 Fault detection apparatus Expired GB1462054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4174173A GB1462054A (en) 1973-09-05 1973-09-05 Fault detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4174173A GB1462054A (en) 1973-09-05 1973-09-05 Fault detection apparatus

Publications (1)

Publication Number Publication Date
GB1462054A true GB1462054A (en) 1977-01-19

Family

ID=10421163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4174173A Expired GB1462054A (en) 1973-09-05 1973-09-05 Fault detection apparatus

Country Status (1)

Country Link
GB (1) GB1462054A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398355A1 (en) * 1977-07-19 1979-02-16 Precitec Gmbh DEVICE AND METHOD FOR THE MONITORING OF A STARTING LINE
EP0055639A1 (en) * 1980-11-26 1982-07-07 Dominique Saulnier System for transmitting information to a passive programmable tranducer for dynamic encoding
FR2557327A1 (en) * 1983-12-21 1985-06-28 Banyaszati Fejlesztesi Intezet CONTROL SYSTEM, PARTICULARLY FOR THE REGISTRATION OF PERSONS ON A MINING EXPLOITATION
GB2281678A (en) * 1993-08-04 1995-03-08 Electromatic Testing an inductive loop detector
US5777893A (en) * 1993-08-04 1998-07-07 Electromatic (Proprietary) Limited Inductive loop diagnostic interface
CN114076994A (en) * 2020-08-18 2022-02-22 杰克科技股份有限公司 Fault detection method and device for electronic equipment, electronic device and storage medium

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398355A1 (en) * 1977-07-19 1979-02-16 Precitec Gmbh DEVICE AND METHOD FOR THE MONITORING OF A STARTING LINE
EP0055639A1 (en) * 1980-11-26 1982-07-07 Dominique Saulnier System for transmitting information to a passive programmable tranducer for dynamic encoding
FR2557327A1 (en) * 1983-12-21 1985-06-28 Banyaszati Fejlesztesi Intezet CONTROL SYSTEM, PARTICULARLY FOR THE REGISTRATION OF PERSONS ON A MINING EXPLOITATION
GB2281678A (en) * 1993-08-04 1995-03-08 Electromatic Testing an inductive loop detector
FR2710173A1 (en) * 1993-08-04 1995-03-24 Electromatic Pty Ltd Method and system for transmitting and receiving data relating to the performance of an inductive loop vehicle detector.
US5621661A (en) * 1993-08-04 1997-04-15 Electromatic (Proprietary) Limited Inductive loop diagnostic interface
GB2281678B (en) * 1993-08-04 1998-04-08 Electromatic Inductive loop diagnostic interface
US5777893A (en) * 1993-08-04 1998-07-07 Electromatic (Proprietary) Limited Inductive loop diagnostic interface
DE4427407B4 (en) * 1993-08-04 2008-02-07 Nortech International(Proprietary) Ltd., Pietermaritzburg Diagnostic interface for an induction loop
CN114076994A (en) * 2020-08-18 2022-02-22 杰克科技股份有限公司 Fault detection method and device for electronic equipment, electronic device and storage medium

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee