Targeted approach for ultraviolet disinfection of surfaces
US11865218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Sep 15, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2202/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An embodiment may involve obtaining a three-dimensional image map of m surfaces within an environment, wherein the surfaces are associated with importance weights that represent how frequently the surfaces are expected to be touched; determining a set of n vantage points for a light source within the environment; calculating an m×n irradiance matrix for each of the surfaces when the light source is in each of the vantage points, wherein each entry in the m×n irradiance matrix is determined by: (i) rasterizing the three-dimensional image map, (ii) identifying a set of visible surfaces, and (iii) calculating an amount of light-based power that would reach each of the visible surfaces; determining a set of n dwell times for the vantage points; and providing instructions, to a disinfecting agent, to traverse at least a subset of the vantage points, pausing at and illuminating at least some.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.