US 12,116,754 B2
Operation area presentation device and operation area presentation method
Hidehiko Kobayashi, Tokyo (JP); Masaaki Uetake, Tokyo (JP); and Takahiro Hashimoto, Tokyo (JP)
Assigned to Komatsu Ltd., Tokyo (JP)
Appl. No. 17/769,794
Filed by Komatsu Ltd., Tokyo (JP)
PCT Filed Nov. 18, 2020, PCT No. PCT/JP2020/043077
§ 371(c)(1), (2) Date Apr. 18, 2022,
PCT Pub. No. WO2021/100785, PCT Pub. Date May 27, 2021.
Claims priority of application No. 2019-210808 (JP), filed on Nov. 21, 2019.
Prior Publication US 2022/0356680 A1, Nov. 10, 2022
Int. Cl. E02F 9/26 (2006.01); E02F 9/24 (2006.01)
CPC E02F 9/261 (2013.01) [E02F 9/24 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An operation area presentation device comprising:
a plurality of detectors that:
calculate a position of a swing body of a work machine in a site coordinate system and an azimuth direction in which the swing body faces;
measure an acceleration and an angular velocity of the swing body and detects the inclination of the swing body with respect to a horizontal plane based on the measurement result;
detect acceleration related to traveling of the work machine; and
detect swing angles of the work machine undercarriage and the swing body, and
a processor, the processor being configured to:
receive history data of a position of an operation site in which the work machine is present;
receive warning history data related to a predetermined incident risk of the work machine;
calculate a staying time of the work machine for each of a plurality of areas of the operation site;
calculate magnitude of the predetermined incident risk of the work machine for each of the plurality of areas;
generate an operation area map obtained by mapping the staying time for each of the plurality of areas to a map of the operation site;
generate the operation area map by mapping the staying time and the magnitude of the predetermined incident risk for each of the plurality of areas to the map of the operation site; and
output the generated operation area map,
wherein the work machine is controlled for a plurality of time periods to acquire data history of the work machine wherein the historical data acquisition is accomplished by:
calculating a position of the swing body in a site coordinate system;
measuring the angular velocity of the swing body; and
detecting acceleration related to the traveling of the work machine.