Material handling vehicle location system
US7987050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Jan 31, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/0755
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for detecting actual position of a material handling vehicle in a warehouse in which a plurality of racks composed of upright frame members and lateral frame members connecting the upright members are installed so that material handling vehicles can travel along the passageway between the racks so that current position of the material handling vehicle in the warehouse can be detected with increased reliability even if some of the reflections fail to be received by the sensors. Reflector plates are attached to each of the upright frame members and the lateral frame members along longitudinal direction thereof, sensors are attached to the vehicle, and a controller is installed on the vehicle to estimate current location of the vehicle based on combination of the number of reflections actually received by the reflector plates and counted by the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.