基于图像处理的集料级配在线检测方法

doi:10.13229/j.cnki.jdxbgxb.20211347

吉林大学学报(工学版) ›› 2023, Vol. 53 ›› Issue (10): 2847-2855.doi: 10.13229/j.cnki.jdxbgxb.20211347

• 交通运输工程·土木工程 • 上一篇下一篇

基于图像处理的集料级配在线检测方法

荣鑫¹(),刘洪海¹(),殷作耀²,林海翔²,边庆华³

^1.长安大学道路施工技术与装备教育部重点实验室，西安 710064
^2.福建省铁拓机械股份有限公司，福建泉州 362000
^3.甘肃路桥建设集团有限公司公路建设与养护技术、材料及装备交通运输行业研发中心，兰州 730030

收稿日期:2021-12-07 出版日期:2023-10-01 发布日期:2023-12-13
通讯作者: 刘洪海 E-mail:1414276521@qq.com;liuhonghai@chd.edu.cn
作者简介:荣鑫（1994-），男，博士研究生. 研究方向：道路施工与装备.E-mail：1414276521@qq.com
基金资助:
国家重点研发计划项目(SQ2020YFF0413749);交通部交通运输行业重点科技项目(2018-199)

On-line detection method of aggregate gradation based on image processing

Xin RONG¹(),Hong-hai LIU¹(),Zuo-yao YIN²,Hai-xiang LIN²,Qing-hua BIAN³

^1.Key Laboratory of Road Construction Technology and Equipment，Ministry of Education，Chang'an University，Xi'an 710064，China
^2.Fujian Tietuo Machinery Co. Ltd. ，Quanzhou 362000，China
^3.Research and Development Center of Transport Industry of Technologies for Materials and Equipments of Highway Construction and Maintenance，Gansu Road& Bridge Construction Group Co. ，Ltd. ，Lanzhou 730030，China

Received:2021-12-07 Online:2023-10-01 Published:2023-12-13
Contact: Hong-hai LIU E-mail:1414276521@qq.com;liuhonghai@chd.edu.cn

摘要/Abstract

摘要：

为了严格控制连续式搅拌设备冷料供给系统级配精度，研究了一种基于图像处理的集料级配在线检测方法。通过在冷料仓皮带处设置集料颗粒采集平台，在集料跌落的过程中对部分集料取样并分析此时的级配情况。采用分水岭与Harris结合算法对粘连颗粒进行分割，并综合200张图片集料级配分布情况得到最终的合成级配。利用EDEM软件仿真得到在集料取样占比基本相同时，分料板在不同的皮带速度下应调节到的最佳取样距离。筛分试验与本文方法的对比结果表明：本文方法与筛分法检测的结果相关性达到了 0.998，具有较好的检测效果。

关键词: 道路工程, 连续式搅拌站, 图像处理, 集料级配, EDEM仿真

Abstract:

In order to strictly control the grading accuracy of the continuous mixing equipment supply system， an online aggregate grading detection method based on image processing has been developed. By setting up an aggregate particle collection platform at the belt of the cold storage bin， part of the aggregate is sampled during the fall of the aggregate and the gradation situation at this time is analyzed. A watershed + Harris method is used to divide it and combine the results of 200 pictures to obtain the final synthetic gradation of the asphalt mixture. When the proportion of aggregate sampling is basically the same， the optimal sampling distance that the dividing plate should be adjusted to under different belt speeds is obtained by using EDEM software simulation. By comparing the results of the screening test and the image detection method，the correlation coefficient between the image method and the screening method detection result reached 0.998，which has a good detection effect.

Key words: road engineering, continuous mixing plant, image processing, aggregate grading, EDEM simulation

中图分类号:

U416.2

荣鑫,刘洪海,殷作耀,林海翔,边庆华. 基于图像处理的集料级配在线检测方法[J]. 吉林大学学报(工学版), 2023, 53(10): 2847-2855.

Xin RONG,Hong-hai LIU,Zuo-yao YIN,Hai-xiang LIN,Qing-hua BIAN. On-line detection method of aggregate gradation based on image processing[J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(10): 2847-2855.

图/表 18

图1

图2

图3

图4

图5

图6

图7

图8

表1

同一取样占比下皮带速度与分料板距离关系"

序号	速度/（ $m ? s - 1$ ）	分料板距离/m	取样占比/%
1	1.0	0.11	25.01
2	1.2	0.12	24.44
3	1.4	0.13	25.44
4	1.6	0.14	26.02

表1

图9

图10

图11

图12

图13

表2

AC-13不同档集料筛分与检测级配"

筛孔尺寸/mm	4~7 mm筛分级配/%	4~7 mm检测级配/%	7~11 mm筛分级配/%	7~11 mm检测级配/%	11~17 mm筛分级配/%	11~17 mm检测级配/%	$I g$
16.0	100	100	100	100	100	100	0
13.2	100	100	100	100	99.08	100	0.92
9.5	100	100	99.5	100	47.85	49.52	2.17
4.75	99.72	100	66.95	69.24	1.14	2.62	4.06
2.36	36.81	39.24	1.26	3.32	0.61	1.24	5.11
1.18	2.64	4.12	0.86	1.93	0.6	0.8	2.75

表2

表3

AC-13合成级配检测值"

筛孔尺寸/mm	筛分试验/%	图像检测方法/%	$I g$
16.0	100	100	0
13.2	92.28	94.9	2.62
9.5	74.66	76	1.34
4.75	51.14	50.1	1.04
2.36	32.02	33	0.98
1.18	23.46	22.9	0.56

表3

表4

SMA-16不同档集料筛分与检测级配"

筛孔尺寸/mm	7~11 mm 筛分级配/%	7~11 mm 检测级配/%	11~17 mm筛分级配/%	11~17 mm检测级配/%	$I g$
16.0	100	100	100	100	0
13.2	100	100	98.89	99.99	1.1
9.5	99.81	100	64.84	67.01	2.36
4.75	72.48	74.9	3.97	4.57	3.02
2.36	1.87	3.24	0.76	1.23	1.84
1.18	1.21	2.62	0.51	1.01	1.91

表4

表5

SMA-16合成级配检测值"

筛孔尺寸/mm	筛分试验/%	图像检测方法/%	$I g$
16.0	100	100	0
13.2	79.81	84.11	4.3
9.5	56.71	54.5	2.21
4.75	28.6	29.13	0.53
2.36	21.82	21.6	0.22
1.18	17.31	18.23	0.92

表5

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基于图像处理的集料级配在线检测方法

On-line detection method of aggregate gradation based on image processing

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