System and method for sensing occupancy of an aerial lift device
US11485621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Sensors on an aerial lift device determine the number of occupants in and occupant portion of the aerial lift device. Prior to permitting the occupant portion to rise up off the ground, the system checks the engagement of safety harnesses to verify that the number of engaged safety harnesses matches the number of occupants in the occupant portion of the aerial lift. If the number matches, operation of the aerial lift may be enabled and the occupant portion deployed. If the number does not match, an alarm is sounded and deployment of the occupant portion may be disabled. With pre-deployment safety testing, and no occupants in the occupant portion, the occupant portion may be deployed to verify all operational status of the occupant portion with no occupants. The system may further create a data log to verify the time and successful pre-deployment safety check.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.