IN2014MN01418A - - Google Patents

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Publication number
IN2014MN01418A
IN2014MN01418A IN1418MUN2014A IN2014MN01418A IN 2014MN01418 A IN2014MN01418 A IN 2014MN01418A IN 1418MUN2014 A IN1418MUN2014 A IN 1418MUN2014A IN 2014MN01418 A IN2014MN01418 A IN 2014MN01418A
Authority
IN
India
Prior art keywords
interface
input side
input
optocoupler
capacitor
Prior art date
Application number
Inventor
Gabriel Cristian Ilie
Virgil Lostun
Daniel Sandu
Ovidiu Stan
Original Assignee
Thales Canada Inc
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 Thales Canada Inc filed Critical Thales Canada Inc
Publication of IN2014MN01418A publication Critical patent/IN2014MN01418A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/185—Use of direct current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Abstract

A digital input interface is provided which can be checked for its reliability. The configuration of the circuit on the input side allows a high impedance for a DC input signal and a low impedance for induced AC noise naturally attenuating any AC induced noise while maintaining the DC input signal. The interface also provides a latent failure detection engine. The latent failure detection engine can open and close an optocoupler on the input side of the interface which discharges and charges a capacitor on the input side. The time taken for the capacitor to recharge when the optocoupler is re opened is used to determine if there has been any threshold decay in the interface.
IN1418MUN2014 2012-01-11 2013-01-10 IN2014MN01418A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/347,741 US8798206B2 (en) 2012-01-11 2012-01-11 Vital digital input
PCT/CA2013/000012 WO2013104051A1 (en) 2012-01-11 2013-01-10 Vital digital input

Publications (1)

Publication Number Publication Date
IN2014MN01418A true IN2014MN01418A (en) 2015-07-03

Family

ID=48744006

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1418MUN2014 IN2014MN01418A (en) 2012-01-11 2013-01-10

Country Status (10)

Country Link
US (1) US8798206B2 (en)
EP (1) EP2803058B1 (en)
JP (1) JP6157504B2 (en)
KR (1) KR20140143742A (en)
CN (1) CN104285248A (en)
BR (1) BR112014017254A2 (en)
CA (1) CA2862975C (en)
HK (1) HK1202694A1 (en)
IN (1) IN2014MN01418A (en)
WO (1) WO2013104051A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9014029B1 (en) 2012-03-26 2015-04-21 Amazon Technologies, Inc. Measuring network transit time
RU2679754C1 (en) * 2018-03-26 2019-02-12 Общество с ограниченной ответственностью "СтройЭкспертПроект" Relay object controller for railway automation and teleautomatic, method for safe determination of relay condition, method for safe control of relay, method for testing relay winding
CN110850773B (en) * 2019-11-14 2021-01-22 北京和利时系统工程有限公司 Signal acquisition method and device, computer storage medium and electronic equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611291A (en) 1983-11-10 1986-09-09 General Signal Corp. Vital interface system for railway signalling
US4908552A (en) * 1986-06-27 1990-03-13 Canon Kabushiki Kaisha Electronic flash unit
FR2710848B1 (en) * 1993-10-08 1995-12-01 Ela Medical Sa Implantable defibrillator with optically isolated shock generator.
CN2174383Y (en) * 1993-12-23 1994-08-17 杨荣生 Signal interlocking device for railway multi-station blocking occupied by trains
JPH0887422A (en) * 1994-09-16 1996-04-02 Mitsubishi Electric Corp Digital signal circuit
US5818681A (en) * 1995-03-31 1998-10-06 The Nippon Signal Co., Ltd. Electromagnetic relay drive circuit
KR960035197A (en) * 1995-03-31 1996-10-24 배순훈 Responsiveness Improvement Circuit for Switching Mode Power Supplies
JP2002042287A (en) * 2000-07-21 2002-02-08 Nippon Signal Co Ltd:The Receiving circuit
JP4131134B2 (en) * 2002-07-09 2008-08-13 株式会社ジェイテクト Control device, input circuit thereof, and signal input method of control device
DE102006024692B4 (en) * 2006-05-19 2008-05-29 Siemens Ag Method and device for detecting the occupancy or free status of a track section
CN201033578Y (en) * 2007-02-14 2008-03-12 沈阳合普铁道科技有限公司 Railway orbit occupying checkout equipment
US7699044B2 (en) * 2008-08-05 2010-04-20 Altronic, Llc Silicon-controlled rectifier shut-off circuit for capacitive discharge ignition system
JP4944939B2 (en) * 2009-11-25 2012-06-06 パナソニック電工Ｓｕｎｘ株式会社 Digital output circuit

Also Published As

Publication number Publication date
US20130177307A1 (en) 2013-07-11
JP6157504B2 (en) 2017-07-05
CN104285248A (en) 2015-01-14
BR112014017254A2 (en) 2017-06-13
EP2803058B1 (en) 2016-12-07
WO2013104051A1 (en) 2013-07-18
JP2015513130A (en) 2015-04-30
CA2862975A1 (en) 2013-07-18
EP2803058A4 (en) 2015-10-21
KR20140143742A (en) 2014-12-17
CA2862975C (en) 2019-06-11
US8798206B2 (en) 2014-08-05
HK1202694A1 (en) 2015-10-02
EP2803058A1 (en) 2014-11-19

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