Patent ID: 11941562
Assignee: HIROSHIMA UNIVERSITY
Field: IT methods for management (Electrical engineering)
Classification: CPC B  G  E  Y | IPC G

Claim 5:
6. An operation analysis device that analyzes a dismantling operation of repeating an action of grasping a dismantling part from a dismantling target by a crusher attached to an attachment tip of a dismantling machine and an action of moving the grasped dismantling part to a sorting destination, the operation analysis device comprising:
a storage unit that stores operation trajectory data in which position information and open/close information of the crusher during an operation period of the dismantling operation are recorded in time series; and
a control unit that analyzes the dismantling operation based on the operation trajectory data,
wherein the control unit
identifies, based on the operation trajectory data, all open points indicating positions at which the crusher is opened during the operation period and all close points indicating positions at which the crusher is closed during the operation period,
calculates, as a shortest distance, a distance between each open point of the all open points and a close point nearest to the each open point, and identifies, as a sorting destination open point, an open point at which the shortest distance exceeds a first threshold value,
identifies, based on the position information, data until the crusher grasping the dismantling part moves to the sorting destination and returns to the dismantling target again from among the operation trajectory data as movement data of the crusher having moved in the dismantling operation, and
identifies data in which the movement data has been removed from the operation trajectory data as grasping operation data indicating an action until the crusher grasps the dismantling part in the dismantling operation.