Verfahren zum Wiederauffinden von vorgebbaren Stellen in Kanal- und Rohrleitungssystemen

NOVELTY - The method involves using a bearer vehicle with a microwave sensor that transmits microwave signals and receives reflected signals. Signal variations are recorded during passes through the system before and after applying a material coating and the current position of the vehicle is determined by comparing the current and stored signal variations. DETAILED DESCRIPTION - The method involves using a bearer vehicle with a microwave sensor that transmits microwave signals and receives reflected signals. A first pass is made through the system before applying a material coating while recording a first signal variation in at least one section of the system in which the points are identified. A second pass is made after applying a material coating while recording a second signal variation and determining the current position of the vehicle by comparing the current and stored signal variations. USE - For relocating predetermined points in sewer and pipeline systems. ADVANTAGE - Enables concealed house connections or other points in sewer and pipeline systems with a high degree of reliability and accuracy