Head-mounted device, heatstroke prevention system, and rehydration alarm system
US11122849B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 18, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Nov 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A head-mounted device includes: an outer shell; a first flow channel that is a gap between a head of a wearer and the outer shell; a second flow channel provided in the outer shell and joining the first flow channel; a fan configured to blow air from one of the first flow channel and the second flow channel to the other of the first flow channel and the second flow channel; a first humidity sensor configured to measure an absolute humidity of intake air entering one of the first flow channel and the second flow channel; and a second humidity sensor configured to measure an absolute humidity of exhaust air exiting from the other of the first flow channel and the second flow channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.