Utility right-of-way safety monitor

Details Utility right-of-way safety monitor Utility right-of-way safety monitor

1997-06-20

2000-02-01

Lefkowitz, Edward

Communications: electrical

Condition responsive indicating system

With particular coupling link

340905, 340933, 340988, 246292, G08B 108

Patent

active

060208155

ABSTRACT:
A system (18 ) for warning workers in the vicinity of a transportation pathway (10 ), such as a railroad track, of the presence of an oncoming vehicle, includes a detector/transmitter assembly (20 ) for detecting the presence of an oncoming vehicle by sensing vibrations generated thereby. Upon detecting an oncoming vehicle, the detector/transmitter assembly broadcasts an RF signal to individual receivers (22 ). Each worker carries a receivers that receive the signal and generate an alert, in the form of a vibration and/or audible tone, to alert the worker of the approaching vehicle.

REFERENCES:
patent: 5406256 (1995-04-01), Ledel et al.
patent: 5713540 (1998-02-01), Gerzberg et al.

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