Methods for determining need for treating a vehicle travel surface
US7683804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/127
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods for determining need for treating a vehicle travel surface include sensing, at a first time, a characteristic of a vehicle travel surface from a mobile sensor. Sensed characteristics include temperature, friction coefficient, material volumetric buildup, e.g., composition, such as an amount or percentage of ice or snow, density, depth, freeze point and chemical concentrations. The sensed characteristic is recorded as a first measurement in a database, and GIS information correlating a location with the first measurement is attached. The characteristic of the vehicle travel surface is sensed at a second time, at the location, and recorded in the database, for example as a second measurement. GIS information correlating the location with the second measurement may be attached, and the first and second measurements compared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.