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Title: Power line detection system

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.
Authors:
;
Publication Date:
OSTI Identifier:
6992520
Report Number(s):
US 5351032; A
PPN: US 8-019696
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 19 Feb 1993
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; AIRCRAFT; ALARM SYSTEMS; HELICOPTERS; POWER SYSTEMS; SAFETY ENGINEERING; ENERGY SYSTEMS; ENGINEERING 240400* -- Power Transmission & Distribution-- Health & Safety-- (1990-)