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如何根据传感器输入信息快速识别出前方道路情况,是智能车控制领域研究的重点。基于32位瑞萨微控制器和CCD摄像头传感器构成智能车硬件平台,提出了基于模糊控制的路况识别控制算法。对CCD传感器采集的视频信号进行二值化,利用模糊识别算法处理二值化的视频信息,有效地屏蔽了外界光线等干扰因素对CCD传感器的影响,使智能车能够根据路况信息做出快速反应。 相似文献
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昝新 《计算机应用与软件》2012,29(7):212-215
道路检测是智能车自动驾驶系统中非常重要的部分。提出一种检测城市道路的新方法:首先在智能车上摄像头获得的道路图片中利用Sobel算子和Tukey权值函数拟合出用于后续处理的基本直线,然后对这些线采取距离、与消失点关系、斜率三项几何约束确定道路可能存在的左右边线以及中线,很大程度上减少了阴影边界、建筑边界等其他干扰线的干扰,从而实现对智能车行驶前方道路的快速精确检测。经过大量实验和智能车比赛证明,在100km/h速度下该算法对光照,阴影,以及非道路物体干扰有良好的稳定性。 相似文献
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胡玲艳 《电子制作.电脑维护与应用》2013,(15):62+66
针对智能车采用摄像头识别路径过程中,提取图像信息的畸变问题进行矫正研究。分别对垂直方向、水平方向图像的畸变进行算法处理,给出实现过程。矫正后图像与实际赛道更契合,保证了智能车识别路径的正确性、有效性。 相似文献
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为提升城市交通效率,减少交通堵塞,文章设计了道路检测和红绿灯调度控制系统。该系统以YOLOv5算法模型为基础,通过调整模型参数,首先实现交通视频中各种道路目标进行实时检测和识别,然后根据道路目标计数值,设置不同的权值,从而完成红绿灯调度。实验数据分析表明,所设计的系统识别结果准确度较高,程序目标识别速度能够达到实时检测的标准,且能初步提高交通效率。 相似文献
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如何根据各种传感器输入的信息快速识别出前方道路的情况,是智能车系统控制领域研究的难点。本文用MC9SDG128B作为核心处理器,完成智能车电源、驱动、数据采集处理和测速等模块的设计与实现,在此基础上提出了基于经典PID路况识别的控制算法。通过大量的实践和调试总结出PID算法的各项系数参考表,使我们的智能车系统在参赛时最终平均车速达到1.75m/s,入弯道时最大速度达到2m/s,基本上满足全程高速运行的要求。 相似文献
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针对各种传感器输入的信息无法快速识别出前方道路,在智能车系统控制领域难以准确实现.本系统用MC9S12XS128MAL作为核心处理器,完成智能车电源、驱动、数据采集处理和测速等模块的设计与实现,在此基础上提出了一种改进广义预测路况识别的控制算法.仿真表明该改进控制算法的可行性,并进行大量的实践和调试,简单的改变控制参数... 相似文献
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介绍了一种基于OV系列摄像头图像的智能车寻迹方法。该方法将摄像头采集到的图像信息进行处理,根据道路信息的特点,找出道路边线。通过两条边线的位置计算得到道路中心线位置,使智能车能按照中心线行驶。对于十字型赛道的中心线,提出了修正方法,对缺失的边线部分,先进行补线处理,再计算中心线。测试结果表明,按照提出的方法,智能车能够准确、平稳地行驶。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained. 相似文献
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven. 相似文献
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融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。 相似文献
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them. 相似文献
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This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives. 相似文献
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潘丽 《自动化与仪器仪表》2014,(7):80-82
自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。 相似文献
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Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what
is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic
sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and
its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of
an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify
robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can
or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
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张涛 《计算机测量与控制》2015,23(1):86-89
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值. 相似文献
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Jacob Palme 《Software》1979,9(9):741-747
The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users. 相似文献