WO2003026943A3 - Railroad collision avoidance system and method for preventing train accidents - Google Patents

Railroad collision avoidance system and method for preventing train accidents Download PDF

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Publication number
WO2003026943A3
WO2003026943A3 PCT/US2002/029335 US0229335W WO03026943A3 WO 2003026943 A3 WO2003026943 A3 WO 2003026943A3 US 0229335 W US0229335 W US 0229335W WO 03026943 A3 WO03026943 A3 WO 03026943A3
Authority
WO
WIPO (PCT)
Prior art keywords
impulse radio
collision avoidance
avoidance system
locomotive
railroad
Prior art date
Application number
PCT/US2002/029335
Other languages
French (fr)
Other versions
WO2003026943A2 (en
Inventor
William T Grisham
Mark D Roberts
Original Assignee
Time Domain 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 Time Domain Corp filed Critical Time Domain Corp
Priority to AU2002326927A priority Critical patent/AU2002326927A1/en
Publication of WO2003026943A2 publication Critical patent/WO2003026943A2/en
Publication of WO2003026943A3 publication Critical patent/WO2003026943A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/246—Signals or brake- or lighting devices mounted on the road vehicle and controlled from the vehicle train

Abstract

A railroad collision avoidance system (900) and method (1000) are disclosed that utilize impulse radio technology to effectively warn a person when there is a locomotive in their vicinity. In one embodiment, the railroad collision avoidance system (900) includes a transmitting impulse radio unit (902) coupled to a locomotive (906) and a receiving impulse radio unit (904) coupled to a vehicle (908). The transmitting impulse radio unit (902) operates to transmit an impulse radio signal (910) towards the vehicle (908) when the locomotive (906) is a predetermined distance from a railroad crossing. Upon receiving the impulse radio signal (910), the receiving impulse radio unit (904) makes sure the person operating the vehicle (908) is informed about the potentially dangerous situation. Several embodiments of the railroad collision avoidance system (900) and method (1000) are disclosed all of which operate to warn a person when there is a locomotive in their vicinity.
PCT/US2002/029335 2001-09-21 2002-09-17 Railroad collision avoidance system and method for preventing train accidents WO2003026943A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002326927A AU2002326927A1 (en) 2001-09-21 2002-09-17 Railroad collision avoidance system and method for preventing train accidents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/960,820 2001-09-21
US09/960,820 US6759948B2 (en) 2001-09-21 2001-09-21 Railroad collision avoidance system and method for preventing train accidents

Publications (2)

Publication Number Publication Date
WO2003026943A2 WO2003026943A2 (en) 2003-04-03
WO2003026943A3 true WO2003026943A3 (en) 2003-05-22

Family

ID=25503686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/029335 WO2003026943A2 (en) 2001-09-21 2002-09-17 Railroad collision avoidance system and method for preventing train accidents

Country Status (3)

Country Link
US (2) US6759948B2 (en)
AU (1) AU2002326927A1 (en)
WO (1) WO2003026943A2 (en)

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Also Published As

Publication number Publication date
US6917284B2 (en) 2005-07-12
WO2003026943A2 (en) 2003-04-03
US20040155760A1 (en) 2004-08-12
US20030058131A1 (en) 2003-03-27
AU2002326927A1 (en) 2003-04-07
US6759948B2 (en) 2004-07-06

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