Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1981-08-31
1984-07-03
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340553, 340554, G08B 1324
Patent
active
044582404
ABSTRACT:
An electronic detection system for detecting intrusion thru a perimeter eoys a transmission line as a sensing element. In one embodiment, RF energy is transmitted: in another, pulses of DC. In either case, pseudo-random coding of the signals is employed. A preferred emboidiment of the invention utilizes a transmission line consisting of a twisted pair of wires enclosed in a non-deformable insulation and configured for shallow burial to effect concealment. Another shape is disclosed for laying-out over hard ground. A low ohmic ground is included under the line to improve performance. An intruder in the field of the line causes an RF reflection back towards the source, which reflection may be detected by Doppler range-gating techniques.
REFERENCES:
patent: 3906492 (1975-09-01), Narbaits-Jaureguy
Olesch Reinhard G.
Rittenbach Otto E.
Lane Anthony T.
Murray Jeremiah G.
Redman John W.
Swann III Glen R.
The United States of America as represented by the Secretary of
LandOfFree
Energy wave electronic intruder detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Energy wave electronic intruder detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy wave electronic intruder detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1632775