Procedure for measuring distance by means of a light-time remote sensing system and corresponding light-time remote sensing system

摘要

Procedure for measuring distance by means of an illumination (14); anda light-time detector (22) having a light-time distance measurement system (28) in the form of a light-time camera system (10), which determines a distance from a phase shift of a modulated emitted and received light,for which a modulation signal (Mo',Mo) for the illumination (14) and the light duration sensor (22) is generated from a base PN sequence, which is a maximum sequence for the selection of a single measurement, and for each individual measurement in an associated range of measurement (44, 46, 48, 50, 52)at least two of these individual measurements are used,where the respective exposure time (60, 62, 64, 66, 68, 70, 72, 74) is selected for the individual measurements (435,1, 35,2, 35;3, 35;4, 35;5, 35;6, 35;7, '35;8) of a distance measurement depending on the associated distance measurement range (44, 46, 48, 50, 52),where the base PN sequence (44) in the form of sub-bit sequences (46, 48) resulting from a substitution rule is emitted to the illumination (14) and the light duration sensor (22), the sub-bit sequences (46) for the illumination (14) differ from the corresponding sub-bit sequences (48) for the light duration sensor (22).