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基于单片机的对靶装置设计与试验 被引量:1
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作者 王祯 王帅 +3 位作者 宗哲英 杨家欢 侯清 刘国强 《现代电子技术》 2022年第11期172-175,共4页
为了提高对靶喷雾技术中对靶准确性,采用OV7670模块采集目标的图像信息、STM32和51单片机作控制核心、三维丝杠为动作机构构建一种基于单片机的对靶装置。视觉系统用OV7670模块采集目标图像信息,采集的图像信息经过缓存芯片传送至STM32... 为了提高对靶喷雾技术中对靶准确性,采用OV7670模块采集目标的图像信息、STM32和51单片机作控制核心、三维丝杠为动作机构构建一种基于单片机的对靶装置。视觉系统用OV7670模块采集目标图像信息,采集的图像信息经过缓存芯片传送至STM32单片机,STM32单片机先将传送过的图像经过二值化处理再通过4邻域扫描确定目标图像的大小与图像坐标,并将坐标通过串口传送至51单片机,51单片机获得坐标信息通过动态定位算法获得三维丝杠步进电机所需脉冲数,从而控制三维丝杠动作实现对目标的精准对靶。试验结果表明:此对靶装置实现了对目标的采集、识别、分析、处理与对靶操作,对靶误差率在±10%以内。基于单片机的对靶装置将两个系统分开设计,再统一进行调试增加了系统的稳定性,将OV7670模块放置在动作机构上提高调试过程中的稳定性,减少了对靶误差率。 展开更多
关键词 对靶装置 目标信息采集 视觉系统 精准对靶 图像处理 动作控制 联调试验
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Two-Stage Interactive Multi-Objective Decision-Making Method Based on the Satisfactoriness Criterion
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作者 蒋尚华 江孝感 徐南荣 《Journal of Southeast University(English Edition)》 EI CAS 1998年第2期93-100,共8页
In this paper, for multi objective decision making, the defects on the commonly used interactive methods based on the satisfactoriness criterion is studied. Then a class of two stage interactive method based on the... In this paper, for multi objective decision making, the defects on the commonly used interactive methods based on the satisfactoriness criterion is studied. Then a class of two stage interactive method based on the satisfactoriness criterion is proposed for improvement with the satisfactoriness criterion being determined through the collection of the decision makers preference information. An application example is presented for illustration of applicability of the method. 展开更多
关键词 multi objective decision making satisfactoriness criterion collection of preference information
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Multi-objective evolutionary approach for UAV cruise route planning to collect traffic information 被引量:9
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作者 刘晓锋 彭仲仁 +1 位作者 常云涛 张立业 《Journal of Central South University》 SCIE EI CAS 2012年第12期3614-3621,共8页
Unmanned aerial vehicle(UAV)was introduced as a novel traffic device to collect road traffic information and its cruise route planning problem was considered.Firstly,a multi-objective optimization model was proposed a... Unmanned aerial vehicle(UAV)was introduced as a novel traffic device to collect road traffic information and its cruise route planning problem was considered.Firstly,a multi-objective optimization model was proposed aiming at minimizing the total cruise distance and the number of UAVs used,which used UAV maximum cruise distance,the number of UAVs available and time window of each monitored target as constraints.Then,a novel multi-objective evolutionary algorithm was proposed.Next,a case study with three time window scenarios was implemented.The results show that both the total cruise distance and the number of UAVs used continue to increase with the time window constraint becoming narrower.Compared with the initial optimal solutions,the optimal total cruise distance and the number of UAVs used fall by an average of 30.93% and 31.74%,respectively.Finally,some concerns using UAV to collect road traffic information were discussed. 展开更多
关键词 traffic information collection unmanned aerial vehicle cruise route planning multi-objective optimization
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