Invention Grant
- Patent Title: Emergency notification system
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Application No.: US16579873Application Date: 2019-09-24
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Publication No.: US10685557B2Publication Date: 2020-06-16
- Inventor: Ingemar Larsson , Anders Hansson , Daniel Andersson
- Applicant: Axis AB
- Applicant Address: SE Lund
- Assignee: AXIS AB
- Current Assignee: AXIS AB
- Current Assignee Address: SE Lund
- Agency: Xsensus LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6a31db5e
- Main IPC: F21V23/00
- IPC: F21V23/00 ; G08B25/14 ; G08B25/10 ; H04W4/90 ; H04W4/33 ; H04W4/029

Abstract:
The present invention relates to an emergency notification system where indicators are mounted on or in a building in such a way that optical or thermal signals emitted from the indicators form a time-variant indication detectable outside the building of an emergency event taking place inside the building. Sensors detecting a predetermined sound are mounted inside the building and are each connected to a nearby indicator. When a sensor makes a detection, it sends event information to its associated indicator which will prompt the indicator to emit a first optical or thermal signal. Based on a signal from a timer connected to the indicator, a property of the first signal will change after a certain time has passed, thereby providing the time-variant indication.
Public/Granted literature
- US20200126400A1 EMERGENCY NOTIFICATION SYSTEM Public/Granted day:2020-04-23
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