Patent ID: 11117430

Abstract:
A system includes a first object having a coupler to couple the first object to a second object; a first switch disposed on a first portion of the first object; a second switch disposed on a second portion on an exterior of the first object, and electrically and commutatively connected to the first switch to form an electric circuit, the second switch being arranged at a predetermined distance from the coupler; the second object disposed away from the first object and within a distance in relation to the second switch, the second object include a mating portion to couple with the coupler to connect the first object with the second object; and a third object disposed between the first object and the second object, and arranged at a corresponding predetermined distance from the mating portion to contact and close the second switch when the coupler and the mating portion are aligned for coupling the first object and the second object, and when the first object and the second object are moved together.