Global to push GA events into
skip to main content

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.
Inventors:
 [1];  [1]
  1. (Tracy, CA)
Issue Date:
OSTI Identifier:
869520
Assignee:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5351032
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
power; line; detection; short-range; radio; frequency; rf; transmitting-receiving; provides; visual; audio; warnings; pilot; helicopter; light; aircraft; up-coming; transmission; complex; milliwatt-level; narrowband; transmitters; powered; installed; top; selected; support; towers; existing; warning; balls; provide; continuous; signal; approaching; on-board; receiver; separate; unit; portion; avionics; share; antenna; airborne; receipt; trigger; alarm; alert; potential; hazard; warning signal; rf signal; power transmission; power line; radio frequency; transmission line; support tower; /340/