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robots

robots是網站跟爬蟲間的協議,用簡單直接的txt格式文本方式告訴對應的爬蟲被允許的權限,也就是說robots.txt是搜索引擎中訪問網站的時候要查看的第一個文件。當一個搜索蜘蛛訪問一個站點時,它會首先檢查該站點根目錄下是否存在robots.txt,如果存在,搜索機器人就會按照該文件中的內容來確定訪問的范圍;如果該文件不存在,所有的搜索蜘蛛將能夠訪問網站上所有沒有被口令保護的頁面。
  • a robots book for people who don t know the first thing about robotics! Absolute Beginner s Guide to

    a robots book for people who don t know the first thing about robotics! Absolute Beginner s Guide to robots is well-written, inviting, and action-packed, with engaging ideas and fascinating factoids about robots and robot-related arts and sciences.

    標簽: Absolute Beginner robotics robots

    上傳時間: 2017-07-07

    上傳用戶:ggwz258

  • Designing Autonomous Mobile robots

    Designing Autonomous Mobile robots

    標簽: Autonomous Designing Mobile robots

    上傳時間: 2017-08-06

    上傳用戶:515414293

  • ZOJ 1065 robots.不算太難,比較麻煩而已吧.

    ZOJ 1065 robots.不算太難,比較麻煩而已吧.

    標簽: robots 1065 ZOJ 比較

    上傳時間: 2014-01-10

    上傳用戶:pkkkkp

  • 采用TüV認證的FPGA開發功能安全系統

    This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System

    標簽: FPGA 安全系統

    上傳時間: 2013-11-05

    上傳用戶:維子哥哥

  • 采用TüV認證的FPGA開發功能安全系統

    This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System

    標簽: FPGA 安全系統

    上傳時間: 2013-11-14

    上傳用戶:zoudejile

  • 1、鎖定某個主題抓取; 2、能夠產生日志文本文件

    1、鎖定某個主題抓取; 2、能夠產生日志文本文件,格式為:時間戳(timestamp)、URL; 3、抓取某一URL時最多允許建立2個連接(注意:本地作網頁解析的線程數則不限) 4、遵守文明蜘蛛規則:必須分析robots.txt文件和meta tag有無限制;一個線程抓完一個網頁后要sleep 2秒鐘; 5、能對HTML網頁進行解析,提取出鏈接URL,能判別提取的URL是否已處理過,不重復解析已crawl過的網頁; 6、能夠對spider/crawler程序的一些基本參數進行設置,包括:抓取深度(depth)、種子URL等; 7、使用User-agent向服務器表明自己的身份; 8、產生抓取統計信息:包括抓取速度、抓取完成所需時間、抓取網頁總數;重要變量和所有類、方法加注釋; 9、請遵守編程規范,如類、方法、文件等的命名規范, 10、可選:GUI圖形用戶界面、web界面,通過界面管理spider/crawler,包括啟停、URL增刪等

    標簽: 日志

    上傳時間: 2013-12-22

    上傳用戶:wang5829

  • Multirobot Plan Generation in a Continuous Domain: Planning by Use of Plan Graph and Avoiding Coll

    Multirobot Plan Generation in a Continuous Domain: Planning by Use of Plan Graph and Avoiding Collisions Among robots

    標簽: Plan Multirobot Generation Continuous

    上傳時間: 2015-12-04

    上傳用戶:王者A

  • Robotics TOOLBOX The Toolbox provides many functions that are useful in robotics including such thi

    Robotics TOOLBOX The Toolbox provides many functions that are useful in robotics including such things as kinematics, dynamics, and trajectory generation. The Toolbox is useful for simulation as well as analyzing results from experiments with real robots. Have fun with the toolbox. It is self-explanatory and very (robotics) user friendly...see the robot.pdf

    標簽: functions including Robotics provides

    上傳時間: 2014-12-06

    上傳用戶:yyyyyyyyyy

  • MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight

    MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map.

    標簽: BattleTech turn-based boardgame networked

    上傳時間: 2016-03-13

    上傳用戶:Breathe0125

  • PTypes (C++ Portable Types Library) is a simple alternative to the STL that includes multithreading

    PTypes (C++ Portable Types Library) is a simple alternative to the STL that includes multithreading and networking. It defines dynamic strings, variants, character sets, lists and other basic data types along with threads, synchronization objects, IP sockets and named pipes. PTypes also offers message queues as an alternative method of thread synchronization. Its main `target audience is developers of complex network daemons, robots or non-visual client/server applications of any kind

    標簽: multithreading alternative Portable includes

    上傳時間: 2016-03-25

    上傳用戶:lz4v4

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