RGiant-CSDN博客

原创 github上面所有图片无法加载出来

问题描述如下：github上面所有图片无法加载出来……解决方案：感恩参考如下：https://blog.csdn.net/qq_38232598/article/details/91346392修改host文件,终端中：sudo gedit /etc/hosts将下面复制到host文件中：# GitHub Start 140.82.113.3 github.com140.82.114.20 gist.github.com151.101.184

2020-05-25 16:13:49 438

转载 ValueError: need more than 2 values to unpack

问题描述： binary, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)ValueError: need more than 2 values to unpack解决方案：感恩参考如下：https://blog.csdn.net/weixin_39755659/article/details/90106846在新版的OpenCV中cv.findContour..

2020-05-25 14:18:52 485

原创 Unable to mount 63 GB Volume

问题描述：Unable to mount 63 GB Volume将U盘插入笔记本后，得到如下提示：解决方案：感恩参考下面的作者：http://mycllab.com/blog/%E6%97%A0%E6%B3%95%E6%89%93%E5%BC%8064gb%E5%8D%A1%E7%9A%84%E6%96%B9%E6%B3%95%EF%BC%9Aunable-to-accessmount-64-gb-volume/运行如下：sudo apt-get install exfat-fu

2020-05-25 06:24:08 1650

转载 Chrome：您的浏览器限制了第三方Cookie...解决方法

问题：打开优酷云视频，提示：限制了第三方Cookie解决方法：参考：https://www.cnblogs.com/Summer6/p/11671204.htmlchrome://flags/ 把这句复制到浏览器回车找到下面这两项设置成 Disable即可：SameSite by defaultcookiesCookieswithout SameSite must ...

2020-03-14 13:09:10 7211 1

转载如何加快sudo apt-get install？

参考：https://blog.csdn.net/bluewhalerobot/article/details/73649298

2020-03-12 17:07:09 467

转载 chrome浏览器： adobe flash player is blocked 问题解决

20200310：https://blog.csdn.net/The_Time_Runner/article/details/100551201https://www.cnblogs.com/tan80000/p/10357081.htmlhttps://blog.csdn.net/weixin_41937552/article/details/100701184

2020-03-10 11:57:34 2443

原创 ubuntu16.04中foxit阅读器注释框中文乱码解决

参考：https://blog.csdn.net/icurious/article/details/103816293自己悟性太低，并没有看懂下面方法：摸索大半天才整明白，用图片说明：随便选择了字体，至于字体：Noto Sans CJK SC Medium是什么意思我也不知道，反正能正常显示中文注释，大家挨个试试对应字体！...

2020-02-18 12:33:18 724 4

原创解决办法：Win10弹出需要管理员权限才能删除文件夹

问题：Win10家庭版，毒霸广告弹出窗口，定位到C盘文件位置，想删除，然后需要管理员权限。解决：参考：https://www.cnblogs.com/love314159/p/11041150.htmlWin键+R（就是开始-运行），弹出的输入框输入gpedit.msc回车。报错：找不到gpedit.msc文件。手动也找不到：本地用户和组。然后参考：http://www.sha...

2020-02-04 18:46:24 2906

转载 Ubuntu16.04中激光雷达(Rplidar A2)gmapping构建地图

完全参考教程：Turtlebot入门教程-激光雷达(Rplidar)gmapping构建地图https://www.ncnynl.com/archives/201611/1095.htmlROS下使用激光雷达RPLIDAR-A2进行SLAM完成地图的构建https://blog.csdn.net/liujianlin01/article/details/80054088ubuntu...

2019-05-17 11:32:54 3834

转载 The destination is read-only

问题描述：u盘插入ubuntu16.04系统中出现下面提示：The destination is read-only无法复制、粘贴及新建文档。解决方案：终端运行指令即可：killall nautilus参考：https://www.jianshu.com/p/d0a7c0509456...

2019-05-15 11:08:08 3090 1

原创 Motion Planning Among Dynamic, Decision-Making Agents with Deep Reinforcement Learning

ABSTRACT: 本文研究用避障算法实现移动机器人在室内环境的行人中进行安全、有效的避障操作。本实验室之前的研究成果见论文《Socially Aware Motion Planning with Deep Reinforcement Learning》，也是基于DRL作为避障算法框架，其中有对智能体行为规则的假设性。然后本文在上面文章工作基础上，主要有两点创新点，第一点，实现了不...

2019-05-08 22:09:16 1386 1

转载 Turtlebot2基于kinect V1实现gmapping建图(4)

本文参考下面两个链接分别实现基于TurtleBot2的先建图和基于AMCL自主导航参考链接：Turbot-SLAM入门教程-实现gmapping建图(kinect V1版)https://blog.csdn.net/sinat_36330809/article/details/89604443Turbot-SLAM入门教程-实现AMCL自主导航(kinect V1版)https...

2019-05-01 20:27:26 704

转载 Open failed: Bad Parameter sent to the device!

问题描述：Open failed: Bad Parameter sent to the device!解决：因为之前为解决roslaunch openni_launch openni.launch出错如下：Warning: USB events thread - failed to set priority. This might cause loss of data......

2019-05-01 16:46:23 1030

转载使用pycharm运行gym-gazebo出现问题ImportError: No module named 'rospy'

问题描述：解决：参考：为pycharm设置搜索路径：https://blog.csdn.net/sunshine_drizzle/article/details/50988542在sublime-text3和pycharm无法import-rospy等ros-Python库：https://blog.csdn.net/qq_39203385/article/details/81...

2019-05-01 09:30:45 2695 1

转载 Turtlebot2基于kinect V1实现gmapping建图(3)

按照参考：https://www.ncnynl.com/archives/201705/1556.html执行：roslaunch turbot_slam gmapping_demo.launch出现如下问题：[ INFO] [1556356699.587804099]: No matching device found.... waiting for devices. Reas...

2019-04-27 17:29:37 1090

转载 Turtlebot2基于kinect V1实现gmapping建图(2)

按照教程：https://blog.csdn.net/u011092188/article/details/54861591继续按照教程：https://blog.csdn.net/hookie1990/article/details/53927823操作后运行：roslaunch openni_launch openni.launch出现如下错误：Warning: USB eve...

2019-04-27 17:15:33 688

转载 Turtlebot2基于kinect V1实现gmapping建图(1)

ubuntu16.04中搭建kinect v1(x360)完全参考：Ubuntu14.04下搭建Kinect V1的环境https://blog.csdn.net/u011092188/article/details/548615911.安装依赖项sudo apt-get install git build-essential python libusb-1.0-0-dev free...

2019-04-27 09:34:52 924

转载 ydlidar-master修改为ydlidar

问题描述：[lidar_view.launch] is neither a launch file in package [ydlidar-master] nor is [ydlidar-master] a launch file nameThe traceback for the exception was written to the log file原因：参考：https://a...

2019-04-26 12:23:35 760

原创 The program 'roscore' is currently not installed. You can install it by typing: sudo apt install pyt

问题描述：方案：

2019-04-26 11:16:26 6165

转载更新出现E: Some index files failed to download. They have been ignored, or old ones used instead.

参考：https://blog.csdn.net/u010098331/article/details/52789426针对更新失败的错误提示去掉有问题的源，修改位置如下：将有问题的源去掉后，更新成功！

2019-04-26 11:03:34 6787

转载 JetPack3.1刷机Nvidia TX2 后执行sudo apt-get update的失败

问题描述：在使用JetPack3.1给Nvidia TX2 刷机之后，自己电脑在执行sudo apt-get update的时候提示一些arm包安装失败，如下错误：解决方案参考：X86 ubuntu update提示E: 无法下载 http://cn.archive.ubuntu.com/ubuntu/dists/xenial/main/binary-arm64/Packaghtt...

2019-04-24 16:13:09 735 1

转载 TX2安装ROS-Kinetic

第1次：tx2上安装ros参考：Ubuntu16.04安装ROS kinetichttps://blog.csdn.net/softimite_zifeng/article/details/78632211第2次参考：Install Robot Operating System (ROS) on NVIDIA Jetson TX2https://www.youtube.com/wat...

2019-04-22 16:01:21 587

转载 (1) Setting up the NVIDIA Jetson TX2

总体思路参照视频：JetPack 3.0 - NVIDIA Jetson TX2B站：https://www.bilibili.com/video/av45502416?from=search&seid=17136393305201675278youtube: https://www.youtube.com/watch?v=D7lkth34rgM&list=PLXYLz...

2019-04-22 10:52:56 608

转载 (3) NVIDIA Jetson TX2 内核中添加 CP210x 串口驱动

问题描述：ydlidar F4激光雷达在TX2上无法识别usb端口号。原因：arm64位没有自主安装cp210x驱动；x86架构自主安装cp210x驱动（联想笔记本正常，而tx2就不行）解决方案：中文：NVIDIA Jetson TX2 内核中添加 CP210x 串口驱动https://blog.csdn.net/gzj2013/article/details/77069...

2019-04-22 10:04:29 488

转载 (2) TX2安装googlepinyin

TX2安装搜狗输入法提示错误：是adm64才可以，tx2处理器是arm64。参考链接：https://blog.csdn.net/arackethis/article/details/42154029（1）添加软件源sudo add-apt-repository ppa:fcitx-team/nightlysudo apt-get update（2）安装fcitx，Google输...

2019-04-20 16:31:06 968

转载 ubuntu16.04安装ros-kinetic

参考：https://blog.csdn.net/softimite_zifeng/article/details/78632211-------20190420

2019-04-20 11:32:59 129

转载 pycharm console output unlimited

https://stackoverflow.com/questions/34355460/increase-output-buffer-when-running-or-debugging-in-pycharm

2019-03-28 23:17:10 141

转载 pycharm console output unlimited

https://stackoverflow.com/questions/34355460/increase-output-buffer-when-running-or-debugging-in-pycharm

2019-03-28 23:14:27 178

转载 rosclean的用法

https://blog.csdn.net/Felaim/article/details/80647392WARNING: disk usage in log directory [/home/dafangwang/.ros/log] is over 1GB.It's recommended that you use the 'rosclean' command.解决方案：...

2019-02-14 14:30:44 6407

转载（未解决）E: Sub-process /usr/bin/dpkg returned an error code (1)

问题如下：在处理时有错误发生： python3-distupgrade ubuntu-release-upgrader-core kazam python3-software-properties software-properties-common software-properties-gtk ubuntu-release-upgrader-gtk update-no...

2019-01-25 19:06:03 745

转载 sudo: unable to execute /usr/bin/add-apt-repository: No such file or directory 挂起

问题描述如下：cumt306@cumt306:~$ sudo add-apt-repository ppa:hzwhuang/ss-qt5[sudo] cumt306 的密码： sudo: unable to execute /usr/bin/add-apt-repository: No such file or directory挂起cumt306@cumt306:~$ ...

2019-01-25 13:27:49 12333 3

转载 Ubuntu python3和python2切换方法

python2--->python3:cd /usr/binsudo rm pythonsudo ln -s /usr/bin/python2.7 /usr/bin/pythonpython3--->python2:cd /usr/binsudo rm pythonsudo ln -s /usr/bin/python3.5 /usr/bin/pythonhttp...

2019-01-25 13:11:11 550

转载 How to get the gazebo models after initial install

参考文章：How to get the gazebo models after initial installhttps://gist.github.com/awesomebytes/982166e825aa23ecdaf9acf34fa0a330hg clone https://bitbucket.org/osrf/gazebo_models ~/.gazebo/models ...

2019-01-22 22:06:09 200

转载 AttributeError: type object 'numpy.ndarray' has no attribute '__array_function__'

安装完anaconda遇到如下问题：dfangwang@dfangwang-B85M-D3V-A:~$ pythonPython 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 19:04:19) [GCC 7.3.0] on linux2Type "help", "copyright", "credits" or "license" fo...

2019-01-22 19:56:21 7244

转载安装opencv3编译cmake错误：Configuring incomplete, errors occurred

如下问题：-- Configuring incomplete, errors occurred!See also "/home/dafangwang/Documents/gym_gazebo/opencv/build/CMakeFiles/CMakeOutput.log".See also "/home/dafangwang/Documents/gym_gazebo/opencv/buil...

2019-01-12 15:47:24 23637 15

转载 E: Unable to locate package……

遇到如下问题：E: Unable to locate package python-develE: Unable to locate package numpy解决方案：https://blog.csdn.net/baidu_19473529/article/details/78013695搞定！

2019-01-12 13:47:42 9547 2

转载 Ubuntu系统强制关闭程序

（1）ctrl+alt+t，调出终端，输入 top，显示的全是现在系统的进程，按占用资源从多到少排列的找到要关掉的进程，记下该进程第一列的PID编号，然后输入q，退回终端（2）输入sudo kill pid即可ctrl+alt+ttopsudo kill 16949 参考链接：https://blog.csdn.net/xifei66/article/details...

2018-12-28 09:51:34 1375

转载 Kullback-Leibler Divergence（KL散度）

下面一篇文章在例子中直观通俗理解KL散度：Kullback-Leibler Divergence ExplainedLight on Math Machine Learning: Intuitive Guide to Understanding KL 上文中文翻译链接：https://www.sohu.com/a/233776078_164987知乎回答：https://www...

2018-12-26 10:44:02 1052

转载 ROS使用过程中出现的问题：由于Anaconda的Python路径问题造成rqt_graph报错

问题如下:Could not import "pyqt" bindings of qt_gui_cpp library - so C++ plugins will not be available:ModuleNotFoundError: No module named 'libqt_gui_cpp_sip'解决方案:

2018-11-12 15:23:40 2474

转载正在读取软件包列表... 有错误！

正在读取软件包列表... 有错误！E: Encountered a section with no Package: headerE: Problem with MergeList /var/lib/apt/lists/ppa.launchpad.net_xqms_opencv-nonfree_ubuntu_dists_trusty_main_i18n_Translation-zh%5fC...

2018-11-08 12:20:21 3599