CA2289265A1 - Line shunt and ground fault apparatus and method - Google Patents

Line shunt and ground fault apparatus and method Download PDF

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Publication number
CA2289265A1
CA2289265A1 CA002289265A CA2289265A CA2289265A1 CA 2289265 A1 CA2289265 A1 CA 2289265A1 CA 002289265 A CA002289265 A CA 002289265A CA 2289265 A CA2289265 A CA 2289265A CA 2289265 A1 CA2289265 A1 CA 2289265A1
Authority
CA
Canada
Prior art keywords
link
processors
shunt impedance
ground fault
establish
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
CA002289265A
Other languages
French (fr)
Other versions
CA2289265C (en
Inventor
Lee D. Tice
Robert J. Clow
Manley S. Keeler
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.)
Pittway Corp
Original Assignee
Pittway Corp
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 Pittway Corp filed Critical Pittway Corp
Publication of CA2289265A1 publication Critical patent/CA2289265A1/en
Application granted granted Critical
Publication of CA2289265C publication Critical patent/CA2289265C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Locating Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Alarm Systems (AREA)

Abstract

A system and method to detect ground faults in a multi-processor communication system that includes a communications link that extends between the processors. The processors isolate different sections of the link. Measurements made with different isolated sections establish the location of the fault. The processors can also make measurements of the link to establish the magnitude of a shunt impedance on the link. Where an abnormal value of shunt impedance is detected, the respective devices can activate or deactivate solid state isolation circuitry to disconnect a section of the link exhibiting the abnormal level of shunt impedance.
CA002289265A 1998-11-10 1999-11-08 Line shunt and ground fault apparatus and method Expired - Fee Related CA2289265C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/189,393 US6292541B1 (en) 1998-11-10 1998-11-10 Line shunt and ground fault apparatus method
US09/189,393 1998-11-10

Publications (2)

Publication Number Publication Date
CA2289265A1 true CA2289265A1 (en) 2000-05-10
CA2289265C CA2289265C (en) 2009-09-29

Family

ID=22697157

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002289265A Expired - Fee Related CA2289265C (en) 1998-11-10 1999-11-08 Line shunt and ground fault apparatus and method

Country Status (6)

Country Link
US (1) US6292541B1 (en)
EP (1) EP1001554B1 (en)
JP (1) JP4295877B2 (en)
CN (1) CN100379168C (en)
CA (1) CA2289265C (en)
DE (1) DE69933839T2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691172B1 (en) 1998-12-15 2004-02-10 Honeywell International, Inc. Communication system for defining a variable group of processors for receiving a transmitted communication
US6466650B1 (en) * 2000-01-24 2002-10-15 Agere Systems Guardian Corp. Telecom service identification transponder apparatus and technique
US6389110B1 (en) * 2000-01-24 2002-05-14 Agere Systems Guardian Corp. Telecom service identification resonator apparatus and technique
US6999561B2 (en) 2003-03-31 2006-02-14 Adtran Inc. Method of detecting remote ground condition
US7437418B2 (en) 2003-06-30 2008-10-14 Sharp Laboratories Of America, Inc. Scheduling system for peripheral readiness protocol
US7180300B2 (en) * 2004-12-10 2007-02-20 General Electric Company System and method of locating ground fault in electrical power distribution system
JP5049649B2 (en) * 2007-05-23 2012-10-17 矢崎総業株式会社 Communication device
JP5363862B2 (en) * 2009-03-31 2013-12-11 パナソニック デバイスＳｕｎｘ株式会社 Sensor controller, photoelectric sensor system and photoelectric sensor
US8314709B2 (en) * 2009-10-05 2012-11-20 Pratt & Whitney Canada Corp. Fire detection fault enhancement
JP5974443B2 (en) * 2011-09-20 2016-08-23 株式会社ジェイテクト Vehicle steering device and motor
US9607494B2 (en) 2012-04-27 2017-03-28 Gentex Corporation Supervised interconnect smoke alarm system and method of using same
WO2014036086A1 (en) * 2012-08-28 2014-03-06 Intelliserv International Holding, Ltd. System and method for determining fault location
DE102013201496A1 (en) * 2013-01-30 2014-08-14 Robert Bosch Gmbh Communication system, has slave user equipment comprising input and output for wires, and secondary user device of slave user equipment arranged against short circuit to control opening or closing of switching unit
EP2804163B1 (en) * 2013-05-17 2015-09-16 Minimax GmbH & Co KG Method and apparatus for detecting faults in control lines in hazard warning and control systems
ES2916348T3 (en) 2017-08-11 2022-06-30 Carrier Corp Earth Fault Location
JP7289619B2 (en) 2018-08-23 2023-06-12 ホーチキ株式会社 Disaster prevention notification system
CN109859448A (en) * 2019-01-28 2019-06-07 武汉恒泰通技术有限公司 A kind of communication link failure processing system and method
EP3715884A1 (en) * 2019-03-29 2020-09-30 Automotive Lighting Italia S.p.A. Automobile lighting unit with oled light sources and related operating method
EP3758179B1 (en) * 2019-06-26 2023-11-29 Honeywell International Inc. Separating device for a bus system, central control unit for the bus system, bus system and method for operating the bus system
EP3913594A1 (en) 2020-05-21 2021-11-24 Carrier Corporation Short circuit locating

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Publication number Priority date Publication date Assignee Title
US4209666A (en) * 1978-10-03 1980-06-24 Lawton Richard A Multiplexing system line fault isolation and identification
FR2498334A1 (en) * 1981-01-21 1982-07-23 Gabry Andre LOCATION OF BREAKDOWNS AND SHORT CIRCUITS IN A TWO-WIRE LINE
US4470047A (en) * 1982-02-04 1984-09-04 Baker Industries, Inc. Bidirectional, interactive fire detection system
FR2511511A1 (en) * 1981-08-14 1983-02-18 Gadonna Michel SYSTEM FOR LOCATING BUCKLES AND OPENINGS IN A BIFILAR LINE
US4837519A (en) * 1985-09-06 1989-06-06 Southern California Edison Company Fault detection
US4862491A (en) 1987-04-14 1989-08-29 Teletech Pty. Ltd. Remote disconnection and short-circuiting apparatus and method
US4916432A (en) * 1987-10-21 1990-04-10 Pittway Corporation Smoke and fire detection system communication
US4937851A (en) * 1988-07-20 1990-06-26 Keptel, Inc. Loop status verification system
US4954809A (en) 1989-05-01 1990-09-04 General Signal Corporation Continuity-isolation testing for class A wiring in fire alarm system
US5400203A (en) 1992-07-29 1995-03-21 Pittway Corporation, A Delaware Corporation Short circuit detector and isolator
US5550894A (en) * 1992-11-20 1996-08-27 Atlas Telecom International Ltd. Device for sequentially altering a communication line for remote diagnostic checks
US5699402A (en) * 1994-09-26 1997-12-16 Teradyne, Inc. Method and apparatus for fault segmentation in a telephone network
DE69618886T2 (en) * 1995-03-17 2002-09-19 Lucent Technologies Inc COMMUNICATION SYSTEM FOR DETECTING AN UNLOCKED TERMINAL DEVICE
US5644293A (en) 1995-05-16 1997-07-01 General Signal Corporation Ground fault detection with location identification
US5995588A (en) * 1995-09-01 1999-11-30 Crick; Robert G. Tone location device for locating faults in a paired line
US5802144A (en) * 1996-04-15 1998-09-01 Mci Corporation Minimum common span network outage detection and isolation
US5946373A (en) * 1996-06-21 1999-08-31 Mci Communications Corporation Topology-based fault analysis in telecommunications networks

Also Published As

Publication number Publication date
EP1001554A2 (en) 2000-05-17
US6292541B1 (en) 2001-09-18
DE69933839T2 (en) 2007-06-28
JP4295877B2 (en) 2009-07-15
CN1258136A (en) 2000-06-28
EP1001554B1 (en) 2006-11-02
CA2289265C (en) 2009-09-29
EP1001554A3 (en) 2000-06-14
DE69933839D1 (en) 2006-12-14
CN100379168C (en) 2008-04-02
JP2000165302A (en) 2000-06-16

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EEER Examination request
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Effective date: 20131108