A speed limiter assembly, comprising: a rope sheave, a safety device; an over-speed locking mechanism associated with the rope sheave, the over-speed locking mechanism is configured to be triggered by a mechanism based on centrifugal force to trigger the speed limiter assembly and start the safety device to brake an elevator car in a guide rail friction mode; and a remote trigger device that is configured to actively trigger the speed limiter assembly under a situation in which the elevator car has not been over-speed, the remote trigger device comprising: an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position, wherein at the idle position, the rotating component is kept separated from the over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly wherein the rotating component is rotatably mounted through a pin and an elastic element, the elastic element tends to enable the rotating component to be restored to the idle position, and the rotating component comprises a first end engaged with the actuator and a second end used for toggling the trigger member of the over-speed locking mechanism; characterized in that the second end of the rotating component is provided with a guide side which gradually guides the trigger member of the over-speed locking mechanism. a rope sheave, a safety device; an over-speed locking mechanism associated with the rope sheave, the over-speed locking mechanism is configured to be triggered by a mechanism based on centrifugal force to trigger the speed limiter assembly and start the safety device to brake an elevator car in a guide rail friction mode; and a remote trigger device that is configured to actively trigger the speed limiter assembly under a situation in which the elevator car has not been over-speed, the remote trigger device comprising: an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position, wherein at the idle position, the rotating component is kept separated from the over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly wherein the rotating component is rotatably mounted through a pin and an elastic element, the elastic element tends to enable the rotating component to be restored to the idle position, and the rotating component comprises a first end engaged with the actuator and a second end used for toggling the trigger member of the over-speed locking mechanism; characterized in that the second end of the rotating component is provided with a guide side which gradually guides the trigger member of the over-speed locking mechanism. an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position, wherein at the idle position, the rotating component is kept separated from the over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly wherein the rotating component is rotatably mounted through a pin and an elastic element, the elastic element tends to enable the rotating component to be restored to the idle position, and the rotating component comprises a first end engaged with the actuator and a second end used for toggling the trigger member of the over-speed locking mechanism; characterized in that the second end of the rotating component is provided with a guide side which gradually guides the trigger member of the over-speed locking mechanism.