US 12,441,562 B2
Device for assessing position of conveyance vehicle
Sho Fujiwara, Hiroshima (JP); Yukihiro Hoso, Hiroshima (JP); and Shingun Kyu, Hiroshima (JP)
Assigned to KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP)
Appl. No. 17/763,092
Filed by KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP)
PCT Filed Jul. 6, 2020, PCT No. PCT/JP2020/026364
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/059658, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 2019-176036 (JP), filed on Sep. 26, 2019.
Prior Publication US 2022/0388791 A1, Dec. 8, 2022
Int. Cl. B65G 67/04 (2006.01); G01C 3/00 (2006.01); G01S 17/08 (2006.01)
CPC B65G 67/04 (2013.01) [G01C 3/00 (2013.01); G01S 17/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A transport vehicle position estimating device for use in a working machine having an attachment for carrying and discharging a load of matter to a box bed provided on a transport vehicle, comprising:
a distance image sensor for acquiring a distance image of the box bed;
an output device; and
a calculation part constituting a controller, wherein
the calculation part
sets a box bed scope indicative of a positional extent of the box bed on the basis of the distance image of the box bed acquired by the distance image sensor,
acquires a dischargeable region indicative of a dischargeable extent of the attachment,
acquires a preferable dischargeable region narrower than the dischargeable region,
determines whether at least a part of the box bed scope falls within the dischargeable region, and
determines whether at least a part of the box bed scope falls within the preferable dischargeable region,
the output device is configured as either a sound output device, a light output device, or a vibration device for outputting information indicating that the transport vehicle is located at a position to allow an operation of discharging the load of matter, and
the calculation part causes the output device to output a first notification when at least the part of the box bed scope falls within the dischargeable region, and causes the output device to output a second notification that is different from the first notification when at least the part of the box bed scope falls within the preferable dischargeable region.