US 12,291,852 B2
Movement identification device
Keita Ogasawara, Tsuchiura (JP); Akio Hoshi, Tsuchiura (JP); Shunichi Suda, Tsuchiura (JP); Hiroshi Kanezawa, Tsuchiura (JP); and Takeshi Shiina, Tsuchiura (JP)
Assigned to Hitachi Construction Machinery Co., Ltd., Tokyo (JP)
Appl. No. 17/640,047
Filed by Hitachi Construction Machinery Co., Ltd., Tokyo (JP)
PCT Filed Sep. 30, 2019, PCT No. PCT/JP2019/038471
§ 371(c)(1), (2) Date Mar. 3, 2022,
PCT Pub. No. WO2021/064777, PCT Pub. Date Apr. 8, 2021.
Prior Publication US 2022/0396933 A1, Dec. 15, 2022
Int. Cl. E02F 9/26 (2006.01)
CPC E02F 9/267 (2013.01) [E02F 9/264 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A movement identification device comprising: a waveform generation unit configured to generate a force waveform that is time-series data of a signal from a force sensor that detects a force acting on a construction machine and an attitude waveform that is time-series data of a signal from an attitude sensor that detects an attitude of the construction machine;
a waveform storage unit that stores a reference waveform, which is a combination of at least one of the force waveform and at least one of the attitude waveform corresponding to a specific motion of the construction machine, the reference waveform being stored for each motion; and
a motion identification unit configured to compare a motion waveform, which is a plurality of combinations of the force waveform and the attitude waveform corresponding to an arbitrary motion of the construction machine for a certain time period, with the reference waveform to identify the specific motion contained in the arbitrary motion.