System for managing operation of an industrial vehicle in restricted areas
US8515629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Operation of an industrial vehicle is controlled based on the location of that vehicle at a facility. The control method includes storing, in a memory device onboard the industrial vehicle, a definition of a first area in a facility. Radio signals are transmitted to the industrial vehicle from at least three transmitters, and for each radio signal, determining a propagation time from the transmitter to the industrial vehicle. A location of the industrial vehicle is derived from the propagation times of the radio signals, and the location is employed to determine when the industrial vehicle is within the first area. Operation of the industrial vehicle is altered in response to the industrial vehicle being within the first area. For example, the industrial vehicle may be disabled, its maximum travel speed limited or an alert is sent to the operator, when the industrial vehicle is within the first area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.