Composite temperature and smoke alarm device and equipped smoke sensor therein
AssigneeElectronics and Telecommunications Research Institute
InventorsHyun-Tak Kim, Bongjun Kim, Jong Chan Park
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Abstract
Disclosed is a multipurpose alarm apparatus which includes a smoke sensing unit configured to sense a smoke using a first sensor and a second sensor, each of the first and second sensors including a temperature-sensitive smoke sensor portion disposed between a first electrode and a second electrode; a smoke level measuring unit configured to generate a smoke level measurement signal by comparing a difference between first and second smoke detection signals from the first and second sensors with a reference signal; and a sensing control unit configured to generate a fire alarm signal when the smoke level measurement signal corresponds to a fire generation condition.
Claims30
A multipurpose alarm apparatus comprising:
- a smoke sensing unit configured to sense a smoke using a first sensor and a second sensor, each of the first and second sensors including a temperature-sensitive smoke sensor portion disposed between a first electrode and a second electrode;
- a smoke level measuring unit configured to generate a smoke level measurement signal by comparing a difference between first and second smoke detection signals from the first and second sensors with a reference signal;
- and
- a sensing control unit configured to generate a fire alarm signal when the smoke level measurement signal corresponds to a fire generation condition.
A multipurpose alarm apparatus comprising:
- a smoke sensing unit including a sensor having a temperature-sensitive smoke sensor portion disposed between a first electrode and a second electrode;
- and
- a micro control unit configured to generate a fire alarm signal using a smoke detection signal output from the sensor to output the fire alarm signal to an external device.
Dependencies are inferred from the claim text.