Abstract: A target-following carrier is disclosed. The target-following carrier includes a target-end device, a moving carrier and a target following assembly. The target-following carrier provided by the present invention utilizes two techniques to detect the distance between a target and the moving carrier. When said detected distance is shorter than a control exchange distance, distance data from laser rangefinders replace that from two RF modules. Therefore, a relative-distanced following can be applied to the target. Meanwhile, the target following assembly can be made compact to mount on any moving carriers, such as a smart luggage or a golf cart, fulfilling the requirements from the market.

Abstract: A system and a method for following a target are disclosed. The system includes steps of: A. providing a signal transmitting RF module mounted on a target, a signal receiving RF module on a moving carrier, and at least 3 laser rangefinders aside the signal receiving RF module; B. calculating an estimated distance and a directional angle; C. driving the moving carrier toward the target while maintaining the directional angle substantially 0 degree; D. repeating step B and step C until the estimated distance is shorter than a control exchange distance; E. dynamically tracking the target by one of the laser rangefinders so that a relative distance between said laser rangefinder and the target can be successively calculated while calculating the estimated distance and the directional angle; and F. driving the moving carrier to keep the relative distance within a predetermined range and maintain the normal direction substantially toward the target.