Control system for track and road construction machine - has laser measurement of height and position to generate curved path

摘要

The control system provides accurate layout of curved sections (18) defined by a formula. The system has prisms (10-12) mounted on posts to provide height reference points with fixed spacings (13,14). A guide wire (3) is located between two measuring carriages (7,1) and between these is a direction mounting unit (4). A laser beam is reflected by the prisms and by a rotational angle transducer (9) to determine control signals. USE/ADVANTAGE - For construction machines used in track laying or road building. Accurate control of construction machine.