Method for measuring the speed of a rail vehicle and...

Details Method for measuring the speed of a rail vehicle and... Method for measuring the speed of a rail vehicle and...

2011-05-10

2011-05-10

Le, Mark T (Department: 3617)

Railway switches and signals

Block-signal systems

Automatic

C246S177000, C246S178000, C246S18200B, C246S249000, C246S246000, C246S255000, C324S160000, C324S173000, C324S179000

Reexamination Certificate

active

07938370

ABSTRACT:
In order to measure a speed of a vehicle having an antenna and travelling on a track formed by two rails, first and second discontinuities are detected. The first discontinuity is detected in a current or voltage of a signal generated by an antenna when the vehicle passes a first tuning block of an electric joint. The second discontinuity is detected in a current or voltage of a signal generated by the antenna when the vehicle passes a second tuning block of the electric joint. The detected discontinuities are used to measure the speed of the vehicle travelling on a track divided in track sections separated by electric joints. Each electric joint includes two tuning blocks and a predetermined length of a track section, wherein each of the tuning blocks allows power coupling between adjacent track sections.

REFERENCES:
patent: 4270716 (1981-06-01), Anderson
patent: 2 153 571 (1985-08-01), None
patent: WO 97/12796 (1997-04-01), None
EP 99870079.3, Apr. 30, 1999 (priority document).

Affiliated with

Also associated with

Rating

Method for measuring the speed of a rail vehicle and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for measuring the speed of a rail vehicle and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring the speed of a rail vehicle and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2673515