EARTHQUAKE-TRIGGERED EMERGENCY INDICATOR
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United States of America Patent
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Issued Date -
Oct 18, 2012
app pub date -
Apr 14, 2011
filing date -
Apr 14, 2011
priority date (Note) -
Abandoned
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Abstract
An earthquake-triggered emergency indicator includes an earthquake detector, an indicator, a controller, and a battery module. The earthquake detector is configured for detecting a vibration. The indicator is configured for generating an indication signal in a form of light, sound or vibration to guide a user to take an emergency measure. The controller is configured for generating a trigger signal based on a magnitude and a lasting time of the vibration so as to trigger the indicator to output the correspondent indication signal. The battery module is configured for providing power supply required for operation of the earthquake-triggered emergency indicator. Preferably, the above-mentioned earthquake-triggered emergency indicator includes a wireless communication module for connecting multiple earthquake-triggered emergency indicators to reduce adverse effects caused by malfunctioning single emergency indicator.
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