Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles

Gravel is the most frequently used material in infrastructure construction. However, the irregular shape of the gravel pile makes it challenging for the loader to predict a stable shoveling position, which can easily result in partial collapse or a complete landslide, thereby posing a serious threat...

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Main Authors: Hanwen Zhang, Sun Jin, Bing Li, Bo Xu, Yuanbin Xiao, Weixin Zhou
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/14/23/11036
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author Hanwen Zhang
Sun Jin
Bing Li
Bo Xu
Yuanbin Xiao
Weixin Zhou
author_facet Hanwen Zhang
Sun Jin
Bing Li
Bo Xu
Yuanbin Xiao
Weixin Zhou
author_sort Hanwen Zhang
collection DOAJ
description Gravel is the most frequently used material in infrastructure construction. However, the irregular shape of the gravel pile makes it challenging for the loader to predict a stable shoveling position, which can easily result in partial collapse or a complete landslide, thereby posing a serious threat to the equipment. In view of the imperfect method of determining the shoveling position of the pile by the current unmanned loader and the high hardware requirements for the deployment of the identification model, this paper first establishes a mathematical model of the loader, and preliminarily determines the influence of the concave and convex edges of the gravel pile on the shoveling position selection through discrete element joint simulation; secondly, the influence of the pile with different edge curvatures on the loader operation process is analyzed in the simulation software, and the radar map is used to further identify the superior position features; finally, Ghost Net is used as the backbone network, the RFB module is introduced into the Backbone, and the CBAM attention mechanism is integrated into the C3 module to identify the lightweight YOLOv5s shoveling position. Discrete element analysis and a lightweight network model were used in the above study to find the safest and most effective shoveling positions. During the test that mimicked how the loader would actually shovel, the number of parameters in the improved model was cut down to 32.5% of the original, the number of calculations was cut down to about 55.2% of the original, and the average accuracy of finding the shoveling position of the gravel pile reached 98%.
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spelling doaj-art-c51475403d7249fa950768b7889206aa2025-08-20T02:50:15ZengMDPI AGApplied Sciences2076-34172024-11-0114231103610.3390/app142311036Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel PilesHanwen Zhang0Sun Jin1Bing Li2Bo Xu3Yuanbin Xiao4Weixin Zhou5School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaGravel is the most frequently used material in infrastructure construction. However, the irregular shape of the gravel pile makes it challenging for the loader to predict a stable shoveling position, which can easily result in partial collapse or a complete landslide, thereby posing a serious threat to the equipment. In view of the imperfect method of determining the shoveling position of the pile by the current unmanned loader and the high hardware requirements for the deployment of the identification model, this paper first establishes a mathematical model of the loader, and preliminarily determines the influence of the concave and convex edges of the gravel pile on the shoveling position selection through discrete element joint simulation; secondly, the influence of the pile with different edge curvatures on the loader operation process is analyzed in the simulation software, and the radar map is used to further identify the superior position features; finally, Ghost Net is used as the backbone network, the RFB module is introduced into the Backbone, and the CBAM attention mechanism is integrated into the C3 module to identify the lightweight YOLOv5s shoveling position. Discrete element analysis and a lightweight network model were used in the above study to find the safest and most effective shoveling positions. During the test that mimicked how the loader would actually shovel, the number of parameters in the improved model was cut down to 32.5% of the original, the number of calculations was cut down to about 55.2% of the original, and the average accuracy of finding the shoveling position of the gravel pile reached 98%.https://www.mdpi.com/2076-3417/14/23/11036gravel pileunmanned loaderdiscrete element co-simulationshovel positionlightweight network model
spellingShingle Hanwen Zhang
Sun Jin
Bing Li
Bo Xu
Yuanbin Xiao
Weixin Zhou
Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
Applied Sciences
gravel pile
unmanned loader
discrete element co-simulation
shovel position
lightweight network model
title Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
title_full Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
title_fullStr Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
title_full_unstemmed Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
title_short Research on Shoveling Position Analysis and Recognition of Unmanned Loaders for Gravel Piles
title_sort research on shoveling position analysis and recognition of unmanned loaders for gravel piles
topic gravel pile
unmanned loader
discrete element co-simulation
shovel position
lightweight network model
url https://www.mdpi.com/2076-3417/14/23/11036
work_keys_str_mv AT hanwenzhang researchonshovelingpositionanalysisandrecognitionofunmannedloadersforgravelpiles
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AT bingli researchonshovelingpositionanalysisandrecognitionofunmannedloadersforgravelpiles
AT boxu researchonshovelingpositionanalysisandrecognitionofunmannedloadersforgravelpiles
AT yuanbinxiao researchonshovelingpositionanalysisandrecognitionofunmannedloadersforgravelpiles
AT weixinzhou researchonshovelingpositionanalysisandrecognitionofunmannedloadersforgravelpiles