工控视频搜索

[第3讲]新建工程PLC配置: [第3讲]新建工程PLC配置。查看更多

2009/11/16
人气(4210)
星级(10)
评论(0)

[第2讲]安装目标: [第2讲]安装目标。查看更多

2009/11/16
人气(3749)
星级(10)
评论(1)

[第1讲]软件安装: [第1讲]软件安装。查看更多

2009/11/16
人气(4157)
星级(10)
评论(0)

水下鳐鱼Aqua_ray: “水下鳐鱼”是一种远程控制的水力驱动鱼，它的形状和运动都以鳐鱼为模板。 “水下鳐鱼”的中央驱动和控制单元采取了Festo公司特有的流体肌肉形式，并结合了射线效应——一种基于鱼鳍的功能解剖的设计。这使得模仿自然的鱼鳍推进近乎完美。由于“水下鳐鱼”能够任意移动，可以作为一水压滑翔机或者振翅驱动，节约了大量能源。“水下鳐鱼”的形状和运动的方式让它可广泛用于海洋学领域而不破坏自然环境。Aqua_ray is a remote-controlled fish driven by water hydraulics, the shape and movements of which have been based on the model of a manta ray.The central drive and control unit of Aqua_ray takes the form of a fluidic muscle from Festo, in combination with the Fin Ray Effect®. The Fin Ray Effect® is a design based on the functional anatomy of a fish’s fin. This makes it possible to imitate the fin propulsion of the natural role model almost perfectly. As the Aqua_ray can be manoeuvred extremely well, and can be operated both as a hydrostatic glider and with an active wing beat, substantial energy savings can be achieved. Thanks to its shape and its means of locomotion, the Aqua_ray can be used in wide ranging areas of oceanography without disrupting the natural environment.

2009/11/12
人气(6773)
星级(10)
评论(0)

如何下载IPPC系列的产品驱动: 该视频介绍如何从 ADVANTECH 的官方网站上下载自己所需要的驱动程序

2009/11/10
人气(6000)
星级(10)
评论(0)

气动手臂AirArm: 通过分析龙虾和蝗虫的腿以及人类手指的形态得到了气动手臂的灵感。它是一个带有外部骨架的两节式桥臂，由气动肌腱驱动。智能控制技术使气动手臂能赶上水滴的速度。气动手臂在技术上的意图是能够在指定半球状运行范围内延伸到尽可能多的区域。选择一般技术实践的常规原理，使带气动肌腱的两节式伸缩系统同时反向运行。 AirArm is biologically inspired by analyses of lobsters’ and grasshoppers’ legs and by human pointing gestures. It is a two-segmented arm with an external skeleton powered by pneumatic muscles. Intelligent control technology enables AirArm to catch drops of water. The technical purpose of AirArm is to reach as many points as possible within a hemispherical operating range defined from a specified point in space. A two-segmented flexing system with muscles operating together in contrary motion was chosen as the general principle for technical realisation.

2009/11/9
人气(7742)
星级(10)
评论(0)

空中水母AirJelly: 空中水母的环境是空气。与水下水母不同，远程控制的水母——空中水母不是在水中游，而是在广阔的空中滑翔，因为它有一个中央电机装置和一个智能听候指令的体系。它能够这样是因为它有一个充满氦气的球形网。空中水母仅有的动力来源就是连接中央电动驱动器的两个锂离子电池。中央驱动器把动力传输到一个锥齿轮上，然后再传给八个连续的直齿轮，直齿轮通过曲柄带动水母上的八个“触角”。每个“触角”都设计成鱼鳍鳍条结构。把蠕动当做这个球形网的动力到目前为止在空军史上还是空白。空中水母是第一个以蠕动为驱动力的室内飞行物体。这种新型的驱动理念基于反弹原理的助推力，让水母轻轻地在空中穿行。 AirJellys environment is the air. Unlike AquaJelly, the remote-controlled jellyfish AirJelly does not swim through water, but instead glides instead through a sea of air thanks to its central electric drive unit and an intelligent, adaptive mechanism. It is able to do so because it consists of a helium-filled ballonett. AirJellys sole source of power is two lithium-ion polymer batteries connected to the central electric drive unit. It transmits the force to a bevel gear and from there to a succession of eight spur gears, which move the eight tentacles of the jellyfish via cranks. Each tentacle is designed as a structure with Fin Ray Effect . Propulsion of a ballonett by means of peristaltic motion is hitherto unknown in the history of aviation. AirJelly is the first indoor flight object with peristaltic drive. This new drive concept, with propulsion based on the principle of recoil, moves the jellyfish gently through the air.

2009/11/6
人气(6767)
星级(10)
评论(0)

[第49讲]USB驱动编程(4): 应用程序首先通过文件系统（POSIX）接口来访问相应的USB设备类驱动程序和USBD；USB设备类驱动程序则通过USBD提供的相关接口将数据请求包传递给USBD；USBD通过HCD提供的接口，进一步将数据包传递给HCD；HCD最终将数据发送到USB总线上。

2009/11/4
人气(6291)
星级(10)
评论(1)

[第48讲]USB驱动编程(3): 数据传输时序：在USB总线上，所有的数据传输都是由USB HOST发起的。每个USB设备通过地址过滤出自己要接受的数据包，并根据数据包请求的类型与USB HOST进行数据传输。

2009/11/4
人气(5628)
星级(10)
评论(0)

[第47讲]USB驱动编程(2): 数据传输时序：在USB总线上，所有的数据传输都是由USB HOST发起的。每个USB设备通过地址过滤出自己要接受的数据包，并根据数据包请求的类型与USB HOST进行数据传输。

2009/11/4
人气(5544)
星级(10)
评论(1)