Absolute Distance Measurement by a Decentralized and Distributed Multi-Lasertracker-System

Lasertrackers with interferometric distance measurement can be used for precise distance determination. Here, we present a decentralized distributed multi-lasertracker-system, which applies the method of triangulation to determine the absolute distance. The trinangulation requires a calibration procedure that reveals transformation matrices between the lasertrackers, distributing the measurement in the network. To our knowledge, our measurement system is the first decentralized and distributed multi-lasertracker-system that can accurately track a moving target with a linear quadratic regulator and integral action. For absolute distance measurement, we confirm the distribution of triangulation in the network in a final real-time approach.