Track worker safety information system and method
US8786428B2 · kind B2 · utility
18Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Oct 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L23/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a method of operating a system for announcing the presence of one or more individuals on or near a pathway to an operator of a vehicle traveling on the pathway, each of a number of data readers positioned along the pathway receives data input by the one or more individuals. In response to each data reader receiving the data input, a unique subset of a number of lamps, also positioned along the pathway, is caused to illuminate. The system includes a computer network that controls the operation of the lamps in response to the input of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.