Social alarm system and method of monitoring a fall detector unit in a social alarm system
US9196144B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/043
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The social alarm system includes a fall detector unit, worn by the user, having an accelerometer to detect a fall. A controller monitors for an acceleration signal which exceeds a wake-up or starting threshold and, in response, distinguishes between a fall event and a non-fall event based at least on the acceleration signal. A counter unit maintains a count of the non-fall events over a monitored time period such as one day. An alarm signal unit generates an inactivity alarm signal when the count of non-fall events is below a count threshold within the monitored time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.