总数:1137 | 当前第108/114 首页 上一页 ... 105 106 107 108 109 110 111 112 113 114 下一页 尾页
带有鳍形夹具的仿生三角架—多方位运动和自动抓取
仿生三角架利用了自然界中鱼鳍的结构,首次将三维空间应用到空中企鹅和水下企鹅项目中,以便实现高效和多方位的自动化。三个可扩展伸缩的金丝玻璃纤维杆降低了需要被替换的量,同时允许最大90度的运动。BionicTripod with FinGripper versatile movement and adaptive grasping The BionicTripod makes use of the bionic Fin Ray® structure, which was transferred to three-dimensional space for the first time in the AirPenguin and AquaPenguin projects for efficient, versatile automation. Three extendible and retractable filigree fibreglass rods reduce the mass to be displaced, while allowing a maximum scope of movement of up to 90 degrees.
  1. 2009/10/29
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[第14讲]中断处理(3)
S3C44B0X的中断控制器支持两个中断处理模式: 1、普通中断模式(NON-VECTORED INTERRUPT MODE) 2、向量中断模式(vectored interrupt mode) 我们可以通过配置中断控制寄存器
  1. 2009/10/28
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[第13讲]中断处理(2)
S3C44B0X的中断控制器支持两个中断处理模式: 1、普通中断模式(NON-VECTORED INTERRUPT MODE) 2、向量中断模式(vectored interrupt mode) 我们可 以通过配置中断控制寄存器
  1. 2009/10/28
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现代通信原理与技术(第35讲)
PCM系统的抗噪声性能.PCM系统的抗噪声性能。PCM系统的噪声主要有两种:量化噪声和加性噪声。量化噪声和信道加性噪声相互独立,所以我们先分别讨论它们单独作用时系统的性能,然后再分析系统总的抗噪声性能。ADPCM(Adaptive Differential Pulse Code Modulation),是一种针对 16bits( 或8bits或者更高) 声音波形数据的一种有损压缩算法,它将声音流中每次采样的 16bit 数据以 4bit 存储,所以压缩比 1:4. 而且压缩/解压缩算法非常简单,所以是一种低空间消耗,高质量高效率声音获得的好途径。保存声音的数据文件后缀名为 .AUD 的大多用ADPCM 压缩。   ADPCM 主要是针对连续的波形数据的,保存的是波形的变化情况,以达到描述整个波形的目的,由于它的编码和解码的过程却很简洁,列在后面,相信大家能够看懂。
  1. 2009/10/28
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连续ARQ协议-计算机网络基础(9-10)
连续ARQ协议.自动重传请求(Automatic Repeat-reQuest,ARQ)是OSI模型中数据链路层的错误纠正协议之一。它包括停止等待ARQ协议和连续ARQ协议,錯誤偵測(Error Detection)、正面確認(Positive Acknowledgment)、逾時重傳(Retransmission after Timeout)與負面確認繼以重傳(Negative Acknowledgment and Retransmission)等機制。
  1. 2009/10/27
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空中企鹅AirPenguin_Festo仿生技术
airPenguin –空中企鹅——自动飞翔的机器企鹅. 随着空中企鹅的问世, Festo公司的工程师们创造了人造企鹅,并教会他们“在空中自主飞行”。为此,控制和调节技术进一步发展成自我调节生物机电一体化系统,该系统可以在今后的生产适应性发挥作用。 一组3只自动飞行的企鹅自由盘旋在空中超声发射站监控下的固定区域。企鹅能够自由的在这个空间内移动,因为一个微控制器赋予了他们自由的意志来以开拓这片空间。 autonomously flying robotic penguins With the AirPenguins, the engineers from Festo have created artificial penguins and have taught them "autonomous flight in the sea of air". For this purpose, control and regulating technology had to be further developed into self-regulating biomechatronic systems, which could also play a future role in adaptive production. A group of three autonomously flying penguins hovers freely through a defined air space that is monitored by ultrasound transmission stations. The penguins are at liberty to move within this space; a microcontroller gives them free will in order to explore it.
  1. 2009/10/23
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水下企鹅AquaPenguins_Festo仿生技术
水下企鹅- 技术-水下自动运载工具AquaPenguins - technology-bearers as autonomous underwater vehicle.与它自然界的原型一样,来自费斯托(Festo)公司的水下企鹅具有一个带水动力的身体轮廓。其优雅的推进力以及其可向各个方向移动的机翼头部和尾部,让机器人企鹅可以在狭窄的空间条件下自由穿行,并且在必要时及时出现甚至可以向后游——这一点可不像它们的自然界的原型。 仿生企鹅设计成水下自动运载工具,可以自由定位并且可在水池中穿行。这种工具有一个3D的海豚音声纳系统,使得“企鹅”可以与周围的伙伴们交流,比如避免互相碰撞。Like its natural archetype, the AquaPenguin from Festo has a hydrodynamic body contour. Its elegant wing propulsion and its head and tail sections, which can be moved in all directions, allow the robotic penguins to manoeuvre in cramped spatial conditions, to turn on the spot when necessary and – unlike their biological counterparts – even to swim backwards. The bionic Penguins are designed as autonomous underwater vehicles that independently orient themselves and navigate through the water basin. They are supported by a 3D sonar system which, as with dolphins, allows communication with their surroundings and with other robotic penguins – for example to avoid collisions.
  1. 2009/10/22
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各种现代仿真技术的机理以及特点_计算机仿真技术
计算机仿真技术杨惠珍老师课堂视频!现代仿真技术 现代仿真技术 (一)目的与要求 1.基本要求: 了解各种现代仿真技术的机理以及特点 (二)教学内容 1.面向对象仿真技术 2.分布交互仿真技术 3.虚拟现实技术 4.建模与仿真的VV&A技术 计算机仿真技术是以多学科和理论为基础,以计算机及其相应的软件为工具,通过虚拟实验的方法来分析和解决问题的一门综合性技术。现在计算机仿真技术已经在机械制造、航空航天、交通运输、船舶工程、经济管理、工程建设、军事模拟以及医疗卫生等领域中得到了广泛的应用。 Computer simulation technology is based on multi-disciplinary and theory, It is a comprehensive technology that can analyse and solve problem through the fictitious experiment method with the tools of the computer and the corresponding software, The computer simulation technology has been widely used in the machine manufacture ,Aero-Space, communications and transportation, marine engineering, economic management, engineering construction, military simulation and health care,etc.
  1. 2009/10/22
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如何在Multiprog中使用EVENT任务编程
打开Multiprog软件,新建ADAM-5510项目,配置Resource,确定ADAM-5510通讯正常,新建一个事件触发后执行的程序,开始写触发事件程序
  1. 2009/10/21
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AC220 SureGrip鳄鱼夹产品演示
AC220 SureGrip™ 鳄鱼夹 SureGrip™ accessories are designed to improve steadiness in slippery hands. Rubber overmolded surfaces and finger-hugging curves give the user a comfortable, reliable grip on the accessory so they can focus on making an accurate measurement. One pair (red, black) of small, insulated, nickel plated jaws Blunt tip grabs round screw heads up to 9.5 mm Recommended for use with TL222 and TL224 test leads CAT IV 600 V, CAT III 1000 V, 10 A rating. UL listed One year warranty
  1. 2009/10/20
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总数:1137 | 当前第108/114 首页 上一页 ... 105 106 107 108 109 110 111 112 113 114 下一页 尾页