US 11,718,973 B2
Construction management device, display device, and construction management method
Ryo Sasaki, Tokyo (JP); Yasufumi Uehara, Tokyo (JP); and Azumi Ichikawa, Tokyo (JP)
Assigned to Komatsu Ltd., Tokyo (JP)
Appl. No. 16/647,675
Filed by Komatsu Ltd., Tokyo (JP)
PCT Filed Feb. 19, 2019, PCT No. PCT/JP2019/006026
§ 371(c)(1), (2) Date Mar. 16, 2020,
PCT Pub. No. WO2019/167717, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 2018-035664 (JP), filed on Feb. 28, 2018.
Prior Publication US 2020/0232179 A1, Jul. 23, 2020
Int. Cl. E02F 3/43 (2006.01); E02F 9/22 (2006.01); E02F 9/26 (2006.01)
CPC E02F 3/435 (2013.01) [B60Y 2200/412 (2013.01); E02F 9/2285 (2013.01); E02F 9/2296 (2013.01); E02F 9/265 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A construction management device comprising:
a current status landform storage unit that is configured to store current status landform data that include three-dimensional data representing a current status landform of a construction object, the current status landform data including a height of the current status landform;
a bucket position acquisition unit that is configured to acquire a position of a bucket of a work machine, the work machine including work equipment that includes the bucket; and
a current status landform update unit that is configured to, based on a work state of the work equipment corresponding to a leveling work state or a compaction work state, update the current status landform to a position that the bucket has passed and is higher than the height of the current status landform.