Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-11-10
2000-06-20
Kizou, Hassan
Communications: electrical
Continuously variable indicating
With meter reading
340539, 340628, 340517, 340577, 340584, 34082569, H04Q 522, G08B 1710, G08B 2300
Patent
active
060782692
ABSTRACT:
A wireless, battery-operated detection system of a plurality of RF-interconnected detectors is operable over a CSMA-type network and intended to detect the occurrence of a local phenomena and transmit at least one signal to at least one other detector to remotely sound an alarm. Each detector includes a sensor for sensing local phenomena, a transmitter for transmitting RF messages indicative of the phenomena, a receiver for receiving the RF messages, an alarm circuit for sounding an audible alarm indicative of the phenomena and a controller operable to control the mode of operation of each detector, wherein each controller is operable to control all the detectors in the system in response to a stimulus and to control multiple and conflicting signals transmitted among the detectors. The controller includes a prioritization circuit for determining the relative priority of the received RF signals and stimuli indicative of a particular condition to enable the appropriate mode of operation. The controller also includes a timer circuit responsive to the operating mode for enabling the transmitter to transmit RF messages immediately after the receiver is sensed and no longer detects incoming message activity, and where the receiver is sensed at randomized time intervals to reduce the probability of multiple simultaneous transmissions.
REFERENCES:
patent: Re32327 (1987-01-01), Biba et al.
patent: 4207559 (1980-06-01), Meyer
patent: 4284849 (1981-08-01), Anderson et al.
patent: 4363031 (1982-12-01), Reinowitz
patent: 4367458 (1983-01-01), Hackett
patent: 4417235 (1983-11-01), Del Grande
patent: 4481502 (1984-11-01), Dawson
patent: 4617560 (1986-10-01), Gutmann
patent: 4672365 (1987-06-01), Gehman et al.
patent: 4673920 (1987-06-01), Ferguson et al.
patent: 4734680 (1988-03-01), Gehman et al.
patent: 4812820 (1989-03-01), Chatwin
patent: 4951029 (1990-08-01), Severson
patent: 5386209 (1995-01-01), Thomas
patent: 5402466 (1995-03-01), Delahanty
patent: 5459450 (1995-10-01), Beghelli
patent: 5486811 (1996-01-01), Wehrle et al.
patent: 5557262 (1996-09-01), Tice
patent: 5565852 (1996-10-01), Peltier et al.
patent: 5578989 (1996-11-01), Pedtke
patent: 5583488 (1996-12-01), Sala et al.
patent: 5587705 (1996-12-01), Morris
patent: 5589821 (1996-12-01), Sallen et al.
patent: 5633501 (1997-05-01), Ameleshi et al.
Ellis Jack
Evans Bill
Fox Alan
Goldblatt Richard
Hanning David L.
Kizou Hassan
Plevy Arthur L.
Safenight Technology Inc.
Tsegaye Saba
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