Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-11-30
1998-04-21
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082535, 34082554, 340572, 235375, G06K 1500, H04B 700, G08B 522, H04Q 700
Patent
active
057422370
ABSTRACT:
A monitor network of a tag location system includes a grid of monitors for transmitting and receiving messages from neighboring monitors and tags within range of the monitor. Also provided is a memory device for storing: a unique identity of the monitor; each input partner monitor from which the monitor receives messages, and an output partner monitor to which the monitor sends messages; monitor and tag signals; a signal strength of the tag signals and significant changes thereto; an acknowledgement signal; and a distress signal indicating that the monitor has not received acknowledgement signal from its output partner monitor. Further there is a computer for periodically causing all tag signals, associated signal strengths and significant changes stored in the memory device to be transmitted to the output partner monitor, for forwarding received monitor messages to the output partner monitor, for issuing the acknowledgement message to be transmitted of a monitor message, for determining receipt of an acknowledgement and for sending a distress signal to all neighboring monitors within range of the monitor if an acknowledgement signal is not received from the output partner monitor. Tag signals issued by tags and received by the monitor directly from tags within range of the monitor or from input partner monitors are transmitted to the output partner monitor for forwarding to the central station, and wherein, monitor messages issued by the central station and receive from input monitors are transmitted, if required, to the output monitor.
REFERENCES:
patent: 4783655 (1988-11-01), Cobb et al.
patent: 4814742 (1989-03-01), Morita et al.
patent: 4816824 (1989-03-01), Katz et al.
patent: 5051741 (1991-09-01), Wesby
patent: 5401947 (1995-03-01), Poland
patent: 5424858 (1995-06-01), Gillotte
patent: 5442343 (1995-08-01), Cato et al.
patent: 5448226 (1995-09-01), Failing, Jr. et al.
patent: 5537126 (1996-07-01), Kayser et al.
patent: 5565858 (1996-10-01), Guthrie
patent: 5594425 (1997-01-01), Ladner et al.
Beaulieu Yonel
Horabik Michael
Katz Eric R.
Lockheed Martin Corporation
LandOfFree
Tag location monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tag location monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tag location monitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2061917