Cluster alarm monitoring system
First Claim
1. An alarm unit adapted to co-operate by radio transmission with a plurality of other such units arranged in a cluster, said alarm unit comprising:
- a radio transmitter and receiver;
a modulator coupled to the transmitter and a demodulator coupled to the receiver;
an identifying pre-settable switch for identifying a particular alarm unit in the cluster;
means for connection to a plurality of alarm sensors for identifying a particular one of a plurality of types of alarms;
a clock for generating a signal from which real time and date may be derived;
an encoder coupled to the clock, the pre-settable switch and the alarm sensor connection means for controlling the modulator, whereby the transmitter can transmit an encoded transmission identifying a particular alarm unit, the type of an alarm event and the real time and date of occurrence of an alarm event;
a decoder for decoding the identification of another of the units in the cluster which is transmitting, the type of a present alarm event and the real time and date of occurrence of a present alarm event; and
a display for displaying the other unit'"'"'s identification, the type of alarm event and the time and date of occurrence of the alarm event.
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Accused Products
Abstract
An alarm unit is adapted to cooperate by radio transmission with a plurality of other such units arranged in a cluster. Each alarm unit includes a radio transmitter and receiver; a modulator for the transmitter and a demodulator for the receiver; an identifying pre-settable switch for identifying the particular alarm unit in the cluster; multiple alarm transducers for identifying a particular one of a plurality of types of alarm; an encoder coupled to the alarm transducers for controlling the modulator, whereby the transmitter can transmit an encoded transmission identifying the particular alarm unit and the particular alarm type; a decoder for decoding the identification of another of the units in the cluster which is transmitting and the type of its present alarm; and a display for displaying the other unit'"'"'s identification and the alarm type.
82 Citations
10 Claims
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1. An alarm unit adapted to co-operate by radio transmission with a plurality of other such units arranged in a cluster, said alarm unit comprising:
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a radio transmitter and receiver; a modulator coupled to the transmitter and a demodulator coupled to the receiver; an identifying pre-settable switch for identifying a particular alarm unit in the cluster; means for connection to a plurality of alarm sensors for identifying a particular one of a plurality of types of alarms; a clock for generating a signal from which real time and date may be derived; an encoder coupled to the clock, the pre-settable switch and the alarm sensor connection means for controlling the modulator, whereby the transmitter can transmit an encoded transmission identifying a particular alarm unit, the type of an alarm event and the real time and date of occurrence of an alarm event; a decoder for decoding the identification of another of the units in the cluster which is transmitting, the type of a present alarm event and the real time and date of occurrence of a present alarm event; and a display for displaying the other unit'"'"'s identification, the type of alarm event and the time and date of occurrence of the alarm event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification