Development of Three Dimensional Positioning Automatic Control Asphalt Paver

This is a system that performs travel course control (automatic steering) of construction machines and three dimensional positioning control of working equipment simultaneously and with high accuracy, according to the design plan of the road.

This system consists of two blocks – a fixed station and a movable station (construction machine). The fixed station measures the three dimensional position of the target set in the movable station (construction machine) in real time using the automatic tracking total station linked to the computer, and compares the pre-set data. The movable station receives the comparison data, predicts the motion, and decides the control quantities for course control and posture control.

This system does not need the setting of a reference line for control. Therefore, the measuring process for work preparations and measurements during the work (checking the height, thickness, and other dimensions) can be eliminated, resulting in the realisation of high accuracy.

The development of the asphalt paver has been carried out as a part of the overall technological development project “Development of New Working Technology in Construction Industries” of the Ministry of Construction.