公开(公告)号：US20170112316A1

公开(公告)日：2017-04-27

申请号：US15397438

申请日：2017-01-03

Applicant: Crestron Electronics, Inc.

Inventor： Luis Rivera ,  Benjamin Slivka ,  Charles R. Derk, JR.

IPC: A47H5/02

CPC classification number: A47H5/02 ,  A47H2005/025 ,  E06B9/32 ,  E06B9/68 ,  E06B2009/6809 ,  E06B2009/6845 ,  E06B2009/6854

Abstract: A drapery track assembly is disclosed that performs an automatic and dynamic torque calibration to enable automatic detection of pulling of the drape as well as obstacles in order to minimize damage to the drapery track assembly and users. The drapery track assembly comprises a track, a drape attached to the track, a motor configured for moving the drape along the track, a sensor configured for sensing a position of the drape along the track, a current sensing circuit configured for detecting current levels, and a controller configured for controlling the motor and comprising at least one memory. The controller is configured for determining and storing a multi-point overcurrent threshold (OCTH) profile in each direction of travel comprising a plurality of overcurrent threshold (OCTH) values for each segment of travel along the track. The controller uses these multi-point overcurrent threshold (OCTH) profiles during normal operation to detect an overcurrent event and perform an overcurrent operation when a measured current level within a travel segment exceeds the overcurrent threshold (OCTH) value of that travel segment.

公开(公告)号：US20150275574A1

公开(公告)日：2015-10-01

申请号：US14242175

申请日：2014-04-01

Applicant: Crestron Electronics, Inc.

Inventor： Charles Derk, JR. ,  Ben Slivka ,  Luis Rivera

IPC: E06B9/68

CPC classification number: E06B9/72 ,  E06B9/50 ,  E06B2009/6809 ,  E06B2009/6854

Abstract: A method that detects obstacles on a roller shade's travel that create excess torque by sensing the current draw from a motor and method by which the motor can calibrate itself to detect excess torque. During the roller shade's travel, it will record the instantaneous torque being generated at various points. For example, it will store the greatest value in the shade motor's non-volatile memory as the normal operating torque.

Abstract translation: 通过感测电动机的电流消耗来检测滚筒遮光罩行进中的障碍物的方法，该方法通过电机可以自行校准以检测额外的扭矩。 在卷帘行驶期间，它将记录在各个点产生的瞬时扭矩。 例如，它将在阴影电机的非易失性存储器中存储最大的值作为正常工作转矩。