US 12,366,839 B2
Timing prediction method, timing prediction device, timing prediction system, program, and construction machinery system
Kazunori Ohno, Sendai (JP); Kento Yamada, Sendai (JP); and Ryunosuke Hamada, Sendai (JP)
Assigned to TOHOKU UNIVERSITY, Sendai (JP)
Appl. No. 17/998,986
Filed by TOHOKU UNIVERSITY, Sendai (JP)
PCT Filed May 24, 2021, PCT No. PCT/JP2021/019585
§ 371(c)(1), (2) Date Nov. 16, 2022,
PCT Pub. No. WO2021/241487, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-090968 (JP), filed on May 25, 2020.
Prior Publication US 2023/0213908 A1, Jul. 6, 2023
Int. Cl. G05B 19/042 (2006.01)
CPC G05B 19/042 (2013.01) [G05B 2219/2616 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, from at least one sensor attached to construction machinery, movement data for a plurality of positions of the construction machinery performing a predetermined movement action, wherein the at least one sensor comprises at least one of a gyroscope, an acceleration sensor, or an inertial movement unit;
generating feature data by performing frequency analysis on the movement data;
segmenting the feature data to extract a transition sequence of a primitive action; and
predicting an end timing of the predetermined movement action by:
analyzing an occurrence rate of the primitive action in the predetermined movement action; and
extracting a pattern of the primitive action based on the extracted transition sequence and based on an action model, wherein the action model is obtained by determining a transition sequence of a primitive action obtained by segmenting a movement state of a training object performing a second movement action; and
causing at least one of an audible alarm or a visual alarm to be provided to a user, wherein the at least one of the audible alarm or the visual alarm is based on the predicted end timing of the predetermined movement action.