Title:
SENSING AND CONTROL OF ACCESS CONTROL DEVICES
Document Type and Number:
WIPO Patent Application WO/2021/026348
Kind Code:
A3
Abstract:
An exemplary method generally relates to operating an access control device including a motor, a locking member, and a target component operably connected with the locking member. The motor may be operated to drive the locking member in a first direction from an initial position toward a desired position. When the locking member is blocked from moving beyond a blockage position, a target location of the target component is detected. The motor may then be operated to drive the locking member in a second direction opposite the first direction. The motor may then be operated to drive the locking member in the first direction toward the blockage position while monitoring the location of the target component. As the target component reaches the target location, the motor is supplied with a boost current to drive the locking member beyond the blockage position and toward the desired position.
Inventors:
KUSANALE VISHAL S (IN)
VEDAMURTHY AVINASH K (IN)
CARPENTER JOHN C (US)
VEDAMURTHY AVINASH K (IN)
CARPENTER JOHN C (US)
Application Number:
PCT/US2020/045196
Publication Date:
April 15, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
SCHLAGE LOCK CO LLC (US)
International Classes:
E05B47/02; E05B17/22; E05B65/10
Domestic Patent References:
| WO2004020769A1 | 2004-03-11 |
Foreign References:
| DE19710834A1 | 1997-11-06 | |||
| US20080048600A1 | 2008-02-28 | |||
| US4189712A | 1980-02-19 |
Attorney, Agent or Firm:
SCHEPERS, Brad A. et al. (US)
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