US 12,241,982 B2
Laser scanner
Simon Mark, Thal (CH); Klaus Bereuter, Alberschwende (AT); Benjamin Müller, St. Gallen (CH); Roman Steffen, Rebstein (CH); Burkhard Böckem, Jonen (CH); Jürgen Dold, Sempach (CH); Jochen Scheja, Hohenems (AT); Lukas Heinzle, Wädenswil (CH); and Charles Leopold Elisabeth Dumoulin, Balgach (CH)
Assigned to LEICA GEOSYSTEMS AG, Heerbrugg (CH)
Filed by LEICA GEOSYSTEMS AG, Heerbrugg (CH)
Filed on May 24, 2023, as Appl. No. 18/201,669.
Application 18/201,669 is a continuation of application No. 16/348,842, granted, now 11,703,597, previously published as PCT/EP2016/077372, filed on Nov. 10, 2016.
Prior Publication US 2023/0296778 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/89 (2020.01); G01B 11/00 (2006.01); G01B 11/22 (2006.01); G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 7/497 (2006.01); G01S 17/42 (2006.01); G01S 17/894 (2020.01); G06T 11/00 (2006.01); G01B 11/02 (2006.01)
CPC G01S 17/89 (2013.01) [G01S 7/4813 (2013.01); G01S 7/4817 (2013.01); G01S 7/4972 (2013.01); G01S 17/42 (2013.01); G01B 11/00 (2013.01); G01B 11/002 (2013.01); G01B 11/024 (2013.01); G01B 11/22 (2013.01); G01S 7/4808 (2013.01); G01S 7/4811 (2013.01); G01S 7/4814 (2013.01); G01S 17/894 (2020.01); G06T 11/00 (2013.01); G06T 2207/10028 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A laser scanner for optical measurement of an environment, comprising
an optical distance measuring device for detecting distance measurement data, having
a transmitter unit for emitting a distance measurement radiation and
a receiver unit for receiving returning parts of the distance measurement radiation,
a support,
a beam steering unit for the distance measurement radiation, which is fixed to the support such that it can rotate about a beam axis of rotation, in particular a fast axis of rotation, and
an angle encoder for recording angle data with respect to a rotation of the beam steering unit about the beam axis of rotation,
wherein the distance measurement data and the angle data, hereafter designated as measurement data, are recorded as part of a measurement process, which comprises a scanning sensing by means of the distance measuring device with
a defined progressive, in particular continuous, rotation of the beam steering unit about the beam axis of rotation and
a continuous emission of the distance measurement radiation and a continuous reception of returning parts of the distance measurement radiation,
the laser scanner has only a single, integrated control element,
the control element has only a single active and a single inactive state, and can be switched by way of an external action in order to occupy the active or inactive state,
a set of defined measurement programs and/or actions of the laser scanner is stored, and
individual measurement programs and/or actions from the set of defined measurement programs and/or actions are triggered based on at least one element from the following group:
change of state of the control element from the inactive to the active state,
change of state of the control element from the active to the inactive state,
switching of the control element by means of a persistent external action during a defined time interval,
a coded sequence of state changes of the control element between the active and inactive state, and
a coded sequence of temporally persistent external actions on the control element over defined time intervals.