System and method for determining barrier motor parameters...

Details System and method for determining barrier motor parameters... System and method for determining barrier motor parameters...

E - Fixed Constructions

05

F

E05F 15/20 (2006.01) E05F 15/10 (2006.01) G05D 13/62 (2006.01)

Patent

CA 2561039

A barrier operator comprises a first measuring apparatus for measuring a current used by a direct current (dc) motor to move a barrier and a second measuring apparatus for measuring a generated voltage of the dc motor. A controller is coupled to the first measuring apparatus and the second measuring apparatus. The controller is programmed to calculate a torque of the dc motor by using the current and to determine when an obstruction exists in the path of the barrier based upon the calculated torque.

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