Abstract: A switch control device includes a casing, a motor, a control unit, and a push arm. The casing includes a mounting wall adapted to be mounted on a mounting surface, and a surrounding wall extending transversely from the mounting wall. The motor is disposed in the casing and has a rotary shaft extending through the surrounding wall. The control unit is connected to the motor. The push arm is disposed outside of the surrounding wall and is coupled to the rotary shaft so as to be driven to rotate relative to the casing without touching the casing, between a pushing state and a release state, thereby controlling the switch.

Abstract: A lock assembly includes a casing, a blocking unit, and a lock unit. The blocking unit includes a blocking member operable to move between an open position and a block position. The lock unit includes an engaging member, an electric unlock module, and a manual unlock module. The engaging member has a main body having first and second abutment portions, and is movable between an engaging position for engaging the blocking member when the blocking member is in the block position, and an unlocked position for disengaging from the blocking member. One of the electric unlock module and the manual unlock module is operable to abut a push member thereof against a corresponding one of the first and second abutment portions to linearly move the engaging member.

Abstract: A gear assembly includes a planetary gear set and a clutch. The planetary gear set includes a sun gear, at least one planet gear meshing with the sun gear, a carrier supporting the at least one planet gear, and an outer ring gear meshing with the at least one planet gear. The clutch is operable to engage with and disengage from the planetary gear set to enable the planetary gear set to switch between a first mode and a second mode.

Abstract: A door mount mechanism is to be mounted onto a door for rotating a thumb turn of a door lock. The door mount mechanism includes a casing, a rotatable component and an intermediate coupling. The casing is for abutting against the door, and defines a receiving space that is adapted for receiving the door lock. The rotatable component is coupled rotatably to the casing. The intermediate coupling includes a first coupling segment connected co-rotatably to the rotatable component, and a second coupling segment connected co-rotatably to and linearly movable relative to the first coupling segment and for driving rotation of the thumb turn of the door lock such that the thumb turn is co-rotatable with the rotatable component.

Abstract: An angle of rotation sensor for measuring an angle of rotation of a rotatable object includes an electrically conductive band to be disposed onto the rotatable object and having two terminal ends which are spaced apart from each other and which are respectively applied with different voltages; an electrical brush in electrical contact with the electrically conductive band; and a voltage measuring device coupled to the electrical brush and measuring a divided voltage which is a voltage at a position of the electrically conductive band at which the electrical brush contacts. The angle of rotation of the rotatable object is associated with the divided voltage and the different voltages.

Abstract: A gear assembly includes a planetary gear set and a clutch. The planetary gear set includes a sun gear, at least one planet gear meshing with the sun gear, a carrier supporting the at least one planet gear, and an outer ring gear meshing with the at least one planet gear. The clutch is operable to engage with and disengage from the planetary gear set to enable the planetary gear set to switch between a first mode and a second mode.

Abstract: A door mount mechanism is to be mounted onto a door for rotating a thumb turn of a door lock. The door mount mechanism includes a casing, a rotatable component and an intermediate coupling. The casing is for abutting against the door, and defines a receiving space that is adapted for receiving the door lock. The rotatable component is coupled rotatably to the casing. The intermediate coupling includes a first coupling segment connected co-rotatably to the rotatable component, and a second coupling segment connected co-rotatably to and linearly movable relative to the first coupling segment and for driving rotation of the thumb turn of the door lock such that the thumb turn is co-rotatable with the rotatable component.