Abstract: A warning system for detecting approaching object and method thereof are provided. A detection unit detects a moving path of the approaching object; a storage unit stores a warning information including the warning area and the confirmation condition; and a processing unit receives the detection signal provided by the detection unit to acquire the current moving path of the approaching object. When the approaching object is detected as moving in the buffering zone, the confirmation operation of the confirmation condition is activated. When the moving path falls in the warning area and fulfills the confirmation condition, the processing unit sends out a warning signal. Therefore, a potentially dangerous approaching object is accurately identified, and the warning is correctly sent.

Abstract: A kinetic energy harvesting mechanism has a fixing shaft, a rotating shell, an input member, and a fixing shaft driving assembly. The rotating shell is disposed on the fixing shaft. The input member is axially connected to the fixing shaft. The fixing shaft driving assembly is disposed in the rotating shell and has a first one-way bearing, a second one-way bearing, a first driving member, a second driving member, and a third driving member. Unidirectional transmission functions of the first one-way bearing and the second one-way bearing are adverse to each other. The first driving member is disposed in the rotating shell by the first one-way bearing. The second driving member is disposed in the rotating shell by the second one-way bearing. The third driving member is disposed in the rotating shell and is connected to the first driving member and the second driving member.

Abstract: A warning system for detecting approaching object and method thereof are provided. A detection unit detects a moving path of the approaching object; a storage unit stores a warning information including the warning area and the confirmation condition; and a processing unit receives the detection signal provided by the detection unit to acquire the current moving path of the approaching object. When the approaching object is detected as moving in the buffering zone, the confirmation operation of the confirmation condition is activated. When the moving path falls in the warning area and fulfills the confirmation condition, the processing unit sends out a warning signal. Therefore, a potentially dangerous approaching object is accurately identified, and the warning is correctly sent.

Abstract: A kinetic energy harvesting mechanism has a fixing shaft, a rotating shell, an input member, and a fixing shaft driving assembly. The rotating shell is disposed on the fixing shaft. The input member is axially connected to the fixing shaft. The fixing shaft driving assembly is disposed in the rotating shell and has a first one-way bearing, a second one-way bearing, a first driving member, a second driving member, and a third driving member. Unidirectional transmission functions of the first one-way bearing and the second one-way bearing are adverse to each other. The first driving member is disposed in the rotating shell by the first one-way bearing. The second driving member is disposed in the rotating shell by the second one-way bearing. The third driving member is disposed in the rotating shell and is connected to the first driving member and the second driving member.

Abstract: A four-wheel steering central transmission device includes an input shaft extending through a front wall of a housing and having an input rotary disc formed with a first slide groove. A turning output unit includes an output shaft extending through a rear wall of the housing and having an output rotary disc formed with a second slide groove. A transmission unit disposed between the input and output shafts includes a hollow adjustment block disposed adjustably within the housing and movable leftward or rightward, and a transmission member movable within the adjustment block and having slide pieces inserted respectively and slidably into the first and second slide grooves.

Abstract: A four-wheel steering central transmission device includes an input shaft extending through a front wall of a housing and having an input rotary disc formed with a first slide groove. A turning output unit includes an output shaft extending through a rear wall of the housing and having an output rotary disc formed with a second slide groove. A transmission unit disposed between the input and output shafts includes a hollow adjustment block disposed adjustably within the housing and movable leftward or rightward, and a transmission member movable within the adjustment block and having slide pieces inserted respectively and slidably into the first and second slide grooves.

Abstract: In a central transmission device of a four-wheel steering system, a turning output unit includes an output shaft extending rotatably through a rear wall of a housing for connection with a rear wheel turning mechanism, and a rotary disc coaxial and integral with a front end of the output shaft. The rotary disc has a radially extending slide groove. A turning input unit includes an input shaft extending rotatably through a front wall of the housing for connection with a front wheel turning mechanism, and a cam protrusion disposed eccentrically at a rear end of the input shaft. The cam protrusion extends into the slide groove and drives the rotary disc. The rotary disc turns reciprocally within a limited angle when the cam protrusion rotates one revolution.

Abstract: A curved surface actuating mechanism suitable for controlling motions of eyelids for a doll is provided, which includes a main shaft, a first drive unit, a second drive unit, a third drive unit, a sleeve, and a curved surface. The main shaft is a fixed shaft. A first drive wheel of the first drive unit is fitted on the main shaft and driven to rotate by a first driving member. A second drive wheel of the second drive unit is fitted on the main shaft and driven to rotate by a second driving member. The sleeve is fitted on the main shaft and has a vertical split shaft. A third drive wheel of the third drive unit is fitted on the vertical split shaft, and meanwhile engaged with the first and the second drive wheels. The curved surface has a link lever fixed to the third drive wheel.

Abstract: A position controlling mechanism is provided in the present invention, which comprises a plurality of bar linkage with multiple degrees of freedom (DOF) for controlling a specific position of the bar linkage to move arbitrarily on a curved surface according the input movement of the bar linkage of the position controlling mechanism. Meanwhile, an apparatus for controlling eye movement is also provided by combing the position controlling mechanism and an eyeball assembly arranged on the specific position of the bar linkage. By means of the position controlling mechanism, the eyeball assembly can be moved toward any direction so as to increase the diversity of the facial expression of a doll.

Abstract: A conveying apparatus capable of ascending or descending stairways and carrying goods consists of a frame, a transmission mechanism and a driving mechanism located on a lower section of the frame. The transmission mechanism includes a planetary gear set and is with two degrees of freedom. When moving on the floor, the driving mechanism may drive a driving wheel in the transmission mechanism to deliver output of the conveying apparatus based on floor conditions, thereby to ascend or descend the stairways, or moving on the plain floor.