US 11,773,544 B2
Determining milled volume or milled area of a milled surface
Sven Paulsen, Brohl (DE); Stefan Wagner, Bad Honnef (DE); Klaus Vollmann, Waldbröl (DE); Lothar Schwalbach, Asbach (DE); and Cyrus Barimani, Königswinter (DE)
Assigned to Wirtgen GmbH
Filed by Wirtgen GmbH, Windhagen (DE)
Filed on Jan. 9, 2020, as Appl. No. 16/739,026.
Application 14/833,369 is a division of application No. 13/647,103, filed on Oct. 8, 2012, granted, now 9,121,146, issued on Sep. 1, 2015.
Application 16/739,026 is a continuation of application No. 14/833,369, filed on Aug. 24, 2015, abandoned.
Prior Publication US 2020/0217024 A1, Jul. 9, 2020
Int. Cl. E01C 23/01 (2006.01); E01C 23/088 (2006.01); E01C 23/12 (2006.01); G01B 11/00 (2006.01); G01B 11/24 (2006.01); G01F 13/00 (2006.01); G01S 17/88 (2006.01); G01S 19/13 (2010.01); G01S 19/14 (2010.01); G01S 19/39 (2010.01)
CPC E01C 23/01 (2013.01) [E01C 23/088 (2013.01); E01C 23/127 (2013.01); G01B 11/00 (2013.01); G01B 11/24 (2013.01); G01F 13/00 (2013.01); G01S 17/88 (2013.01); G01S 19/13 (2013.01); G01S 19/14 (2013.01); G01S 19/39 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of determining usage of a construction machine including a milling drum, the milling drum having a drum width, the method comprising:
(a) detecting with a laser scanner at least one profile parameter of a ground surface in front of the milling drum, the at least one profile parameter comprising a location along the drum width of at least one previously cut edge of a previously milled area in front of the milling drum;
(b) detecting with at least one distance sensor at least one distance parameter corresponding to a distance traveled by the construction machine;
(c) determining whether the milling drum is actively milling the ground surface by at least interpreting working parameters of the construction machine as correlating to active milling of the ground surface; and
(d) for all time intervals during which the milling drum is determined to be actively milling the ground surface, determining an area of a ground surface milled by the construction machine at least partially as a function of the profile parameter and the distance parameter,
wherein the determined area accounts for an actual width of material being milled being less than the drum width due to the presence of the previously milled area in front of the milling drum.