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Multi-machine collaboration realization conditions and precise and efficient production mode of intelligent agricultural machinery

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International Journal of Agricultural and Biological Engineering 2024年第2期17卷 27-36页

作者： Bo Wang Xiaoxue Du Yana Wang hanping mao Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationJiangsu UniversityZhenjiang 212013JiangsuChina School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina School of Optoelectronic Engineering Changzhou institute of technologyChangzhou 213032JiangsuChina

Multi-machine collaboration of agricultural machinery is one of the international frontier and hot research in the field of agricultural ***,the current domestic multi-machine collaborative operation of agricultural machinery is limited to the research of task goal planning and collaborative path optimization in a single production *** order to achieve the purpose of zero inventory of agricultural materials and precise and efficient production operations,a new technology of agricultural machinery multi-machine collaboration with multi-dimension and full chain was proposed,which takes into account the whole process of agricultural production,as well as agricultural machinery system and external supply chain,storage and transportation chain *** problems of data collaboration,process collaboration and organization collaboration were *** the realization conditions of new multi-machine cooperative technology were ***,the zero inventory mode and precise operation mode of agricultural materials under the background of multi-machine cooperation of intelligent agricultural machinery were ***,a precise and efficient agricultural production mode based on data-process-organization collaboration was *** results showed that the multi-machine cooperative technology mode of multi-dimensional and full-chain agricultural machinery could greatly improve the efficiency of agricultural machinery,operation quality,land utilization rate and reduce production cost.

关键词： intelligent agricultural machinery multi-machine collaboration multi-dimensional whole chain zero inventory precise and efficient production mode

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基于FPGA加速的Mask R-CNN稻瘟病高通量自适应识别模型研究

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农业机械学报 2024年第7期55卷 298-304,314页

作者：杨宁程巍张钊源方啸毛罕平江苏大学电气信息工程学院镇江212013 江苏大学农业工程学院镇江212013

针对基于图像的稻瘟病现场检测技术依赖先验知识且受制于算力与田间网络状况,无法实现自适应实时检测的问题,提出一种可利用现场可编程门阵列(Field programmable gate array,FPGA)加速的Mask R-CNN(Mask region-based convolutional ne... 详细信息

针对基于图像的稻瘟病现场检测技术依赖先验知识且受制于算力与田间网络状况,无法实现自适应实时检测的问题,提出一种可利用现场可编程门阵列(Field programmable gate array,FPGA)加速的Mask R-CNN(Mask region-based convolutional neural network)稻瘟病高通量自适应快速识别模型。首先将骨干网络改进为MobileNetV2,利用其倒残差模块降低计算量,提高模型并行处理能力;随后增加用于稻瘟病多尺度特征融合的特征金字塔网络模块,使模型具备多尺度自适应处理能力;最后由全卷积网络(Fully convolutional network,FCN)分支输出稻瘟病病斑的实例分割,同时使用交叉熵损失函数完成稻瘟病的定位与分类。稻瘟病实测数据集对模型的验证结果表明:当输入为全高清图像时,模型平均推理时间减少至85 ms,相较GPU服务器、同级别GPU边缘计算平台,速度分别提高86.2%、63.0%。在交并比为0.6时,准确率可达98.0%,病斑捕获能力平均提升21.2%。提出的Mask R-CNN自适应快速识别模型能够在田间恶劣网络状况下实现稻瘟病的快速现场检测,具有更好的抗噪能力和鲁棒性能,为水稻病害实时检测、察打一体提供了高效实时的片上系统方案。

关键词：稻瘟病检测目标检测 Mask R-CNN 现场可编程门阵列

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农业4.0背景下基于学科形态的农业工程学科建设研究

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中国农机化学报 2024年第3期45卷 331-336页

作者：王亚娜金玉成戴韵卿毛罕平江苏大学智能农机装备理论与技术重点实验室江苏镇江212013 江苏大学药学院江苏镇江212013 江苏大学农业工程学院江苏镇江212013

农业4.0的新背景下,农业工程学科依赖于农学、工程、生物、信息等的互相渗透与融合,基于农业工程学科知识形态,探索学科组织形态和活动形态:建立“农业工程+X”的知识组织新模式,构建跨学院深融合的资源统筹平台,构建对接需求链的有组... 详细信息

农业4.0的新背景下,农业工程学科依赖于农学、工程、生物、信息等的互相渗透与融合,基于农业工程学科知识形态,探索学科组织形态和活动形态:建立“农业工程+X”的知识组织新模式,构建跨学院深融合的资源统筹平台,构建对接需求链的有组织科研模式,内培外引构建跨学科创新团队,依托学术氛围深度赋能学科成员,从根源上撬动学科建设的底层逻辑,为农业工程学科发展注入生机与活力。江苏大学通过建立农业工程学科特区,提高学科知识的协同生产力,形成强大的农业装备创新链,建立项目牵引的团队驱动模式等实现农业工程学科高质量发展。

关键词：农业工程学科知识形态组织形态活动形态交叉融合

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CFD simulation of sucrose flow field in the stem of greenhouse tomato seedling

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International Journal of Agricultural and Biological Engineering 2022年第1期15卷 111-115页

作者： Jiheng Ni Jingtao Dong Ikram Ullah hanping mao School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

Sucrose is the main constituent of assimilation transport from source to *** order to study the transport mechanism of sucrose,the sucrose at stem was taken as a research object and the sucrose flow field in tomato stem was analyzed using CFD ANSYS FLUENT *** results showed that the sucrose pressure distribution was lower at bottom node and higher at middle *** velocity of sucrose at different nodes was higher at the bottom node and lower at middle node and assimilation flow direction of the first,second,and third leaf from the bottom was towards the *** result of verification experiment showed that sucrose content measured at different nodes was higher at middle node than that of bottom *** of this study confirmed that ANASYS FLUENT can better simulate sucrose migration in greenhouse tomato *** study provides a new method for studying the partitioning mechanism of tomato assimilates in greenhouse.

关键词： greenhouse tomato sucrose flow field computational fluent dynamic rule of distribution

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温室番茄分级机设计与试验

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农业装备与车辆工程 2024年第6期62卷 14-17页

作者：郭超刘继展赵笑缘毛罕平江苏大学现代农业装备与技术教育部重点实验室江苏镇江212013

针对现有固定式果品分级机设备庞大,难以适应狭窄的温室作业环境,而移动式果品分级机结构复杂的问题,设计了一种温室番茄分级机。以番茄为研究对象,根据番茄斜面滚动性、皮薄易损性及四分格果箱结构运用三维软件SoliderWorks设计了分级... 详细信息

针对现有固定式果品分级机设备庞大,难以适应狭窄的温室作业环境,而移动式果品分级机结构复杂的问题,设计了一种温室番茄分级机。以番茄为研究对象,根据番茄斜面滚动性、皮薄易损性及四分格果箱结构运用三维软件SoliderWorks设计了分级机机构及其关键部件。以STM32单片机为控制器,通过压力式称重传感器DYMH-102采样称重模拟信号,并通过24位A/D转换器HX711进行模数转换,控制器根据番茄称重数值划分番茄等级,并控制数字舵机和电动推杆动作,最终实现番茄分级。结果表明:番茄称重绝对误差为3.8 g,番茄分级周期为4.8 s,番茄分级成功率为87%,分级机作业性能好,可为实现设施农业智能装备和技术发展提供支撑。

关键词：温室环境番茄自动分级农业装备

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Effects of nutrient solution irrigation quantity and powdery mildew infection on the growth and physiological parameters of greenhouse cucumbers

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International Journal of Agricultural and Biological Engineering 2022年第27期15卷 68-74页

作者： hanping mao Yafei Wang Ning Yang Yong Liu Xiaodong Zhang School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationJiangsu UniversityZhenjiang 212013JiangsuChina School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

For important economic crops such as cucumbers,abiotic and biotic stress conditions have had an adverse *** study aimed to observe the effects of water stress and powdery mildew stress on cucumber *** stress at two levels,B0(no powdery mildew stress)and B1(powdery mildew stress)with three fertigation requirement levels(T1:Full fertigation,T2:Moderate nutrient solution deficit,T3:Severe nutrient solution deficit).Therefore,set up six treatments of B0T1,B1T2,B0T3,B1T1,B1T2,and *** gas-exchange parameter first decreases and then increases under B1T1,B1T2,and *** leaf gas exchange parameter was significantly decreased under B0T2 and *** to the control experiment(CK,B0T1:no disease infestation and full irrigation),the plant height of cucumber decreased by 7.55%,10.62%,15.28%,23.27%,and 35.16%,respectively,under B0T2,B0T3,B1T1,B1T2 and B1T3;the stem diameter of cucumber decreased by 9.46%,15.74%,5.47%,13.45%,and 23.72%,respectively,under B0T2,B0T3,B1T1,B1T2,and B1T3;the leaf area of cucumber decreased by 13.76%,29.96%,13.43%,38.21%,and 66.83%,respectively,under B0T2,B0T3,B1T1,B1T2,and *** root-shoot ratio of cucumber was 3.92%,3.13%,3.63%,3.84%,4.41%,and 3.82%,respectively,under the B0T1,B0T2,B0T3,B1T1,B1T2,and ***,this study can provide a basis for the research on greenhouse environmental control and cucumber cultivation management.

关键词： greenhouse cucumber powdery mildew nutrient solution drought stress growth traits physiological traits

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Effects of daily light integral on tomato(Solanum lycopersicon L.)grafting and quality in a controlled environment

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International Journal of Agricultural and Biological Engineering 2022年第6期15卷 44-50页

作者： Jinxiu Song Yulong Fan Xingqun Li Yuzhu Li hanping mao Zhiyu Zuo Zhirong Zou College of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationZhenjiang 212013JiangsuChina College of Horticulture Northwest A&F UniversityYangling 712100ShaanxiChina

As the source of energy and biological signals,light can influence the healing process of grafted seedlings by regulating the synthesis of the endogenous hormone,regeneration of wound-healing tissue,and connection of vascular tissue in grafted *** effect of daily light integral(DLI)on the healing process and seedling quality of tomato(Solanum lycopersicum L.)was analyzed in this study,with the comparison of grafted seedlings treated in dark for 7 d after *** results showed that the height increment of scion and rootstock,adhesion of graft union,stem flow,total chlorophyll content,and net photosynthesis rate increased gradually with increasing light intensity,and no longer increased significantly when the DLI was higher than 5.04 mol/m^(2)·*** contents of auxin(IAA)and gibberellin(GA)in tomato leaves increased and abscisic acid(ABA)decreased with the increase of ***,there was no significant difference between the treatments with DLI higher than 6.48 mol/m^(2)·*** the biomass and energy use efficiency(EUE)of grafted seedlings increased with DLI in a certain range and then *** biomass was the largest when DLI was 5.04 mol/m^(2)·***,EUE was highest when DLI was 7.46 mol/m^(2)·*** conclusion,a suitable DLI is beneficial to cultivate high-quality grafted tomato seedlings,and increasing DLI within a certain range can promote biomass accumulation,connection of vascular tissue,and endogenous hormone biosynthesis in tomato grafted seedlings during the healing *** lighting environment with DLI of 5.04 mol/m^(2)·d(light intensity of 100μmol/m^(2)·s and light time of 14 h/d)is recommended for the healing treatment in high-quality production,which also improves EUE during the healing period of tomato grafted seedlings.

关键词： stress resistance endogenous hormones stem flow energy use efficiency seedling index

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Highly sensitive detection of daminozide using terahertz metamaterial sensors

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International Journal of Agricultural and Biological Engineering 2022年第6期15卷 180-188页

作者： hanping mao Xiaoxue Du Yuting Yan Xiaodong Zhang Guoxin Ma Yafei Wang Yong Liu Bin Wang Xiaoyue Yang Qiang Shi Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationJiangsu UniversityZhenjiang 212013JiangsuChina School of Agricultural Engineering Zhenjiang 212013JiangsuChina Department of Obstetrics and Gynecology Affiliated Hospital of Jiangsu UniversityZhenjiang 212013JiangsuChina

In order to solve the problems of low sensitivity and complex sample pretreatment in traditional detection,a method was proposed in this study to detect daminozide using terahertz combined with a metamaterial sensor,which enables real-time and label-free molecular detection with high *** correlation between the transmission frequency shift and absorbance of daminozide solution at different concentrations was *** simulation and experimental results showed that this metamaterial sensor could achieve highly sensitive sensing of daminozide solutions at 0.05 mg/*** maximum quality factor(Q_(max))of the two peaks could reach 5.78 and 13.05,and the maximum figure of merit(FOM)of the two peaks can reach 0.82 and *** maximum sensitivity of two resonance peaks reached 38.148 GHz/(mg·L)and 133.516 GHz/(mg·L)when the concentration of daminozide in the solution was 2000 mg/*** was an obvious positive correlation between the transmission and transmission,frequency shift and frequency shift,and absorbance and absorbance of the resonance peak of daminozide ***,this platform not only opens up new possibilities for the microanalysis of the chemical composition of substances in solutions but also provides a valuable reference for the design of other metamaterial-based sensors in the field of food safety.

关键词： Terahertz time-domain spectroscopy plant growth regulator detection metamaterial

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Review of applying X-ray computed tomography for imaging soil-root physical and biological processes

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International Journal of Agricultural and Biological Engineering 2015年第5期8卷 1-14页

作者： Francis Kumi mao hanping Hu Jianping Ikram Ullah Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education and Jiangsu ProvinceJiangsu UniversityZhenjiang 212013China Department of Agricultural Engineering University of Cape CoastCape CoastGhana

Root growth process in soils has long been a matter of interest to soil and plant *** the opaque nature of the soil has been a barrier to most research attempts aimed at unraveling the full root-soil *** traditional method of separating the roots from the growth media which is common practice tends to be destructive and defeats the purpose of such *** is ineffective in monitoring the interactions within the soil medium and as a result,a fast non-destructive technique is ***,with computing and technological advancements,X-ray computed tomography(CT)has been found to be capable of meeting this need by imaging the processes which are of interest to *** the past three-four decades,the applications of the technology for imaging soil-root studies have attracted the researchers’widespread interests and the future looks more *** purpose of this review is to present an overview of CT applications in imaging root-soil *** main focus is on the use of soil-root interface researches and the way forward for such non-destructive analyses.

关键词： computed tomography soil root imaging non-destructive interactions

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Optimized design and test for a pendulum suspension of the crop spray boom in dynamic conditions based on a six DOF motion simulator

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International Journal of Agricultural and Biological Engineering 2018年第3期11卷 76-85页

作者： Longfei Cui hanping mao Xinyu Xue Suming Ding Baiyu Qiao Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationJiangsu UniversityZhenjiang 212013China Nanjing Research Institute for Agricultural Mechanization Ministry of AgricultureNanjing 210014China

Spray deposit distribution from a field sprayer is mainly affected by the boom movements when the tractor is driven over a rough soil surface,the pendulum suspension that used to reduce and control the movement of spray boom by isolating the boom from vibrations of the tractor will directly enhance uniform deposition of ***,how to match the parameters of the suspension with the properties of the boom is the key *** dynamic rigid-flexible coupling model of the virtual prototype of the spray boom suspension system was established by using ADAMS and ABAQUS *** optimization of the suspension parameters for a large spay boom was carried out based on the optimal Latin hypercube design,radial basis function neural network,and multi-objective genetic algorithm *** modified parameters of the suspension,the travel of the sprayer on a typical field motion track was simulated based on a six DOF motion simulator,and the dynamic behavior of the boom suspension was *** results show that RMS of the measured boom roll angle and the boom center displacement for optimized solution were reduced by 14.76%and 12.43%compared with the original ***,the inertial measurement unit(IMU)was used to measure the movements of the sprayer vehicle during the pesticide application on the Hongze Lake Farm,the experiment of field condition reproduced by using the six DOF motion simulator,the standard deviation of the roll angle and vibration displacement for the optimized sprayer boom are only 0.6382°and 62.279 mm *** research provides theoretical basis and experimental method for parameter optimization of large scale boom suspension.

关键词： boom sprayer pendulum suspension parameter optimization spray boom movement spray deposit distribution six DOF motion simulator

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