期刊
AUTOMATION IN CONSTRUCTION
卷 97, 期 -, 页码 1-12出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.autcon.2018.10.013
关键词
Neural-network; Bucket-filling; Wheel-loader; Automation; Construction
资金
- program Fordonsstrategisk Forskning och Innovation, FFI, Vinnova, Sweden [2017-01958]
- Kempe Foundations
- Vinnova [2017-01958] Funding Source: Vinnova
Automation of earth-moving industries (construction, mining and quarry) require automatic bucket-filling algorithms for efficient operation of front-end loaders. Autonomous bucket-filling is an open problem since three decades due to difficulties in developing useful earth models (soil, gravel and rock) for automatic control. Operators make use of vision, sound and vestibular feedback to perform the bucket-filling operation with high productivity and fuel efficiency. In this paper, field experiments with a small time-delayed neural network (TDNN) implemented in the bucket control-loop of a Volvo L180H front-end loader filling medium coarse gravel are presented. The total delay time parameter of the TDNN is found to be an important hyperparameter due to the variable delay present in the hydraulics of the wheel-loader. The TDNN network successfully performs the bucket-filling operation after an initial period (100 examples) of imitation learning from an expert operator. The demonstrated solution show only 26% longer bucket-filling time, an improvement over manual tele-operation performance.
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