公开(公告)号：US20210010326A1

公开(公告)日：2021-01-14

申请号：US16925920

申请日：2020-07-10

Applicant: Lutron Technology Company LLC

Inventor： Reginald Pierce ,  Garrett Powell ,  Thomas F. Rebbert

IPC: E06B9/82 ,  E06B9/72

Abstract: A motorized window treatment includes a motor drive unit having a motor and a covering material having a first end in a fixed position and a second end movable along a first axis. The covering material is configured to be extended along a first axis when the motor is operated in a first direction and retraced along the first axis when the motor is operated in a second direction. A hembar is coupled to the second end of the covering material. At least one state sensing circuit is coupled to the hembar and is configured to generate at least one first signal. A control circuit is configured to determine a present state of the hembar based on the at least one first signal. The motor drive unit is configured to control the motor when the present state of the hembar and an expected state of the hembar are different.