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针对常规机器人导航系统采用单一类型地形识别传感器,观察维度单一等问题,对煤矿井下探测搜救机器人地形感知系统进行研究,使用远近感知系统数据融合,提高机器人避障能力。由激光扫描仪采集的二维点云数据建立远距离地形信息,由Kinect相机采集的地形深度信息建立近距离地形信息。基于PCL模型,应用像素遍方法,实现观测信息的采集与云图像的构建。使用2.5维栅格地图构建方法得到近距离环境地形信息。使用Dijkstra算法进行了路径规划研究,建立了融合路径长度和地面危险度等级的目标函数。通过仿真研究验证了本文提出的最优路径减小机器人行走过程的俯仰角、侧倾角的波动幅度。 相似文献
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《机器人》2017,(4)
针对社会发展需求和当前技术现状,提出了一个在工业上能实现自适应环境、人机共融组织和智能决策的多机器人协同作业的M2M2A(man-or machine-to-machine to actuation)解决方案.首先设计了人、智能中心、机器人和传感器等所构成的多机器人作业系统的结构体系及其组织形式.设计了C/S(client/server)和P2P(peer-to-peer)混合式的M2M通信模型,由C/S模型实现人-机控制类和状态类信息的远程传输,由P2P模型实现机-机状态类信息的共享.研发了机器人自定位、作业环境感知、避障路径优化、轨迹规划和运动控制等智能模块,实现机器人自主作业的执行操作.数据流将通讯模块、智能决策及控制等各个模块有机融合在一起,构建了一个开放式、模块化的M2M2A系统.设计了一个典型的协同装配作业多机器人实验系统,通讯模块实现了作业环境信息、机器人位姿或位置信息的实时传输和共享,机器人智能模块可以根据作业环境的变化,自我协调各机器人的作业时序,自适应地重新规划各自的路径或作业轨迹,最优地完成下达的作业任务. 相似文献
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侦察机器人自主路径跟踪是执行侦察任务时需要的一个基本行为.首先,用简化的模糊推理方法实现了路径跟踪、障碍避让和车体平衡三个基本智能行为模块,然后通过基于行为优先级的行为协调机制将这些基本行为组合起来,实现了具有多个传感器信息输入和具有自主障碍避让和车体平衡控制能力的自主路径跟踪组合行为.算法具有模块化和分布智能的特点,实时性好,降低了算法实现的复杂性.仿真和实验结果证明了算法的有效性. 相似文献
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信息智能融合的稳定性较差,容易出现信息融合不准确的状况,因此提出基于模糊聚类的会计预算信息智能融合方法。通过特征值的正负概率计算对特征进行提取,在数据层、特征层和决策层的三个层次划分中,分析会计预算信息融合层次,构建信息智能融合模型,基于模糊聚类实现会计预算信息的智能融合。实验结果表明,实验组能够准确聚类融合信息,可以运用到实际的会计预算信息融合中。 相似文献
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针对大范围未知环境下的机器人目标跟踪问题,在智能空间下分布式智能网络设备与机器人本体二维激光的基础上,提出了一种基于异质信息融合结构以实现机器人对目标实时检测和跟踪的方法。系统通过颜色信息进行移动目标匹配,根据三角测量原理基于最小二乘法对目标进行三维重建;检测出运动目标后,通过激光传感器扫描目标人腿进行近邻点聚类获得目标的准确深度信息;利用一种优化的迭代扩展卡尔曼滤波算法对异质传感器进行信息融合,以实现基于智能空间的机器人定位与目标跟踪。实验结果验证了方法的有效性。 相似文献
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动态环境下基于蚁群算法的实时路径规划方法* 总被引:4,自引:0,他引:4
提出了一种实现移动机器人在复杂动态环境下进行实时路径规划的新方法。该方法首先利用模糊逻辑来描述机器人局部环境模型;然后采用改进的蚁群系统算法快速地搜索出局部最优路径,并在此路径的引导下,结合机器人滚动规划方法,实现移动机器人在复杂动态环境下的实时路径规划。该方法不仅能克服传感器测量误差等引起环境信息的模糊性和不确定性的影响,还可以充分发挥蚁群算法的群体智能优势来保证系统规划的实时性。仿真结果表明该算法的有效性和可行性。 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