Patent ID: 9708845
Date: 2017-07-18
CPC Classifications: E05F,E05Y,G04C,G05D

Claim:
1. A movable barrier operator, comprising: a motor; a gearbox rotatably coupled to the motor, wherein the gearbox is configured to move a barrier in response to activation of the motor; an arm mechanically coupled to the gearbox and the barrier, in a manner so that moving the arm causes the barrier to move between an open position and a close position; and a MEMS-based inertial measuring unit including an accelerometer coupled to the arm for generating an output pertaining to one or more parameters of the barrier, the one or more parameters including: wherein the MEMS-based inertial measuring unit is coupled to the arm in a manner so that an orientation of the MEMS-based inertial measuring unit coincides with an orientation of the arm.