Smoke detector with automatic dialing
First Claim
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1. A system for detecting one or more of a plurality of alarm conditions, at a monitored location, by respective alarm detectors, and for reporting the detected alarm conditions to one or more respective monitoring stations, comprising:
- telephone line means for effecting communications between said monitored location and one or more of said monitoring stations;
an alarm sensor having a plurality of inputs, said alarm detectors being connected to respective ones of said inputs of said alarm sensor;
said alarm sensor including a data output terminal (SDA) and a clock output terminal (SCL);
a modem having a plurality of input terminals and a plurality of output terminals;
a microprocessor having a plurality of input terminals and a plurality of output terminals;
a battery;
power shut-down means connected between said battery and said modem and said microprocessor, said power shut-down means being normally turned on whereby power from said battery is not supplied to said modem and to said microprocessor;
trigger circuit means connected between said sensor and said power shut-down means;
said trigger circuit means being activated by said alarm sensor on receipt of an alarm condition signal whereby to turn off said power shut-down means;
whereby, power is supplied to said modem and to said microprocessor on receipt of an alarm condition by said alarm sensor;
means for seizing said telephone line means on receipt of an alarm condition by said alarm sensor.
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Abstract
One or more of a plurality of alarm conditions can be detected by respective alarm detectors. The detected alarm conditions can be reported to one or more respective monitoring stations. The system includes circuitry for controlling the consumption of power.
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Citations
6 Claims
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1. A system for detecting one or more of a plurality of alarm conditions, at a monitored location, by respective alarm detectors, and for reporting the detected alarm conditions to one or more respective monitoring stations, comprising:
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telephone line means for effecting communications between said monitored location and one or more of said monitoring stations; an alarm sensor having a plurality of inputs, said alarm detectors being connected to respective ones of said inputs of said alarm sensor; said alarm sensor including a data output terminal (SDA) and a clock output terminal (SCL); a modem having a plurality of input terminals and a plurality of output terminals; a microprocessor having a plurality of input terminals and a plurality of output terminals; a battery; power shut-down means connected between said battery and said modem and said microprocessor, said power shut-down means being normally turned on whereby power from said battery is not supplied to said modem and to said microprocessor; trigger circuit means connected between said sensor and said power shut-down means; said trigger circuit means being activated by said alarm sensor on receipt of an alarm condition signal whereby to turn off said power shut-down means; whereby, power is supplied to said modem and to said microprocessor on receipt of an alarm condition by said alarm sensor; means for seizing said telephone line means on receipt of an alarm condition by said alarm sensor. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification