Human body tumbling detection method and device and mobile terminal system
US9928717B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Apr 27, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1117
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A human body tumbling detection method and device and a mobile terminal system are disclosed. The method may include: when detecting that resultant acceleration of a human body is less than a low acceleration threshold a0, capturing a resultant acceleration sequence I0 within fixed time; in a two-dimensional coordinate system using resultant acceleration and time as coordinate axes and a0 as a reference line, calculating a curve area above the reference line and a curve area below the reference line that are enclosed by curves in I0 coordinates and the reference line; and when a difference between the curve area above the reference line and the curve area below the reference line is less than a curve area threshold ΔS, and time occupied by resultant acceleration below the reference line is greater than a low acceleration time threshold ΔT, determining that the human body tumbles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.