Procedure and system for detecting a person's fall
US7423537B2 · kind B2 · utility
48Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2006 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A person under supervision wears a sensor consisting of at least one accelerometer (31) and a magnetometer (41), oriented in his vertical direction. A fall event is picked up when a significant and rapid oscillation of the acceleration signal coincides with a shift in the ambient magnetic field between two levels (between t=4000 and t=5000). Additional criteria that may also make use of the magnetometer enable the diagnosis to be made, and it is easier and safer to establish this than with accelerometers alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.