<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_46067306的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_46067306</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_46067306]]></copyright><item><title><![CDATA[伺服系统刚性模型的建立]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/135483958</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/135483958</guid><author>qq_46067306</author><pubDate>Tue, 09 Jan 2024 16:26:48 +0800</pubDate><description><![CDATA[伺服系统刚性模型建立]]></description><category></category></item><item><title><![CDATA[ibstdc++.so.6: version `GLIBCXX_3.4.30‘ not found (]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/133240040</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/133240040</guid><author>qq_46067306</author><pubDate>Sun, 24 Sep 2023 14:35:47 +0800</pubDate><description><![CDATA[ibstdc++.so.6: version `GLIBCXX_3.4.30' not found (]]></description><category></category></item><item><title><![CDATA[error: Couldn‘t find a setup script in /tmp/easy_install-cbk44aj7/scipy-1.11.2.tar.gz]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/133218798</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/133218798</guid><author>qq_46067306</author><pubDate>Sat, 23 Sep 2023 21:45:23 +0800</pubDate><description><![CDATA[error: Couldn't find a setup script in /tmp/easy_install-cbk44aj7/scipy-1.11.2.tar.gz
]]></description><category></category></item><item><title><![CDATA[视觉里程计——特征点]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/132144475</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/132144475</guid><author>qq_46067306</author><pubDate>Mon, 07 Aug 2023 13:32:00 +0800</pubDate><description><![CDATA[一个SLAM分为前端和后端，前端也称为视觉里程计。视觉里程计根据相邻图像的信息估计出粗略的相机运动，给后端提供较好的初始值。视觉里程计的算法主要分为两大类：特征点法和直接法。基于特征点法的前端，长久以来被认为是视觉里程计的主流方法，它具有稳定，对光照、动态物体不敏感的优势，是目前比较成熟的解决方案。]]></description><category></category></item><item><title><![CDATA[李群和李代数（三）——李代数求导和扰动模型]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/132118615</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/132118615</guid><author>qq_46067306</author><pubDate>Sat, 05 Aug 2023 12:59:13 +0800</pubDate><description><![CDATA[由于他的存在，z往往不可能精确地满足z=Tp的关系。在SLAM中，我们要估计一个相机的位置和姿态，该位姿是由SO(3)上的旋转矩阵或者SE(3)上的变换矩阵描述。设置某时刻相机的位姿为T，他观察到了一个世界坐标位于p的点，产生了一个观测数据。这里的重点是，我们会经常构建与位姿有关的函数，然后讨论该函数关于位姿的导数，以调整当前的估计值。2.对李群左乘或者右乘微小扰动，然后对该扰动求导，称为左扰动和右扰动模型，这是扰动模型。1.使用李代数表示姿态，然后根据李代数加法对李代数求导，这是李代数的求导模型。]]></description><category></category></item><item><title><![CDATA[李群和李代数（二）——李群和李代数两者的关系理解与应用]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/132118603</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/132118603</guid><author>qq_46067306</author><pubDate>Sat, 05 Aug 2023 12:57:44 +0800</pubDate><description><![CDATA[在上一篇帖子上对李群和李代数进行了简单的介绍，也对李代数的意义以及李群和李代数的关系，做了简单的介绍，但是只是文字和公式太过抽象，经过查阅资料，并进行总结了这篇文章。下面是上一篇文章的部分内容Tmin​JTi1∑N​∣∣zi​−Tpi​∣∣22​。]]></description><category></category></item><item><title><![CDATA[李群和李代数（一）——李群李代数的引出及其指数映射]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/132006839</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/132006839</guid><author>qq_46067306</author><pubDate>Sun, 30 Jul 2023 14:34:39 +0800</pubDate><description><![CDATA[李代数有一个集合V\mathbb{V}V、一个数域F\mathbb{F}F和一个二元运算[，]组成，如果满足以下几条性质，则称（V\mathbb{V}VF\mathbb{F}F，[，]）为一个李代数，记作g。1.封闭性∀XY∈VXY∈V∀XY∈VXY∈V2.双线性∀XYZ∈Vab∈F∀XYZ∈Vab∈F有 [aX+bY,Z]=a[X,Z]+b[Y,Z]，[Z,aX+bY]=a[Z,X]+b[Z,Y]3.自反性∀。]]></description><category></category></item><item><title><![CDATA[moveit Exception while loading controller manager ‘simple‘: According to the loaded plugin descripti]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/130587916</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/130587916</guid><author>qq_46067306</author><pubDate>Tue, 09 May 2023 20:18:49 +0800</pubDate><description><![CDATA[Exception while loading controller manager 'simple': According to the loaded plugin descriptions the class simple with base class type moveit_controller_manager::MoveItControllerManager does not exist. Declared types are  moveit_fake_controller_manager/Mov]]></description><category></category></item><item><title><![CDATA[[ERROR] [1683095221.962649339]: No p gain specified for pid. Namespace: /Autobot_ws/gazebo_ros_cont]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/130472842</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/130472842</guid><author>qq_46067306</author><pubDate>Wed, 03 May 2023 14:32:27 +0800</pubDate><description><![CDATA[[ERROR] [1683095221.962649339]: No p gain specified for pid.  Namespace: /Autobot_ws/gazebo_ros_control/pid_gains/joint1
[ERROR] [1683095221.963136893]: No p gain specified for pid.  Namespace: /Autobot_ws/gazebo_ros_control/pid_gains/joint2
[ERROR] [16830]]></description><category></category></item><item><title><![CDATA[RLException: while processing /home/yzxie/桌面/Autobot_ws/src/it_move_config/launch/move_group.launch:]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/130468138</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/130468138</guid><author>qq_46067306</author><pubDate>Tue, 02 May 2023 22:55:57 +0800</pubDate><description><![CDATA[RLException: while processing /home/yzxie/桌面/Autobot_ws/src/it_move_config/launch/move_group.launch:
while processing /home/yzxie/桌面/Autobot_ws/src/it_move_config/launch/planning_context.launch:
Invalid  tag: Cannot load command parameter [robot_des]]></description><category></category></item><item><title><![CDATA[Failure - model name mrobot already exist.]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/130111515</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/130111515</guid><author>qq_46067306</author><pubDate>Wed, 12 Apr 2023 16:56:09 +0800</pubDate><description><![CDATA[Failure - model name mrobot already exist.]]></description><category></category></item><item><title><![CDATA[Warning: TF_REPEATED_DATA ignoring data with redundant timestamp for frame odom at time 338.607000 a]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129794526</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129794526</guid><author>qq_46067306</author><pubDate>Mon, 27 Mar 2023 14:22:15 +0800</pubDate><description><![CDATA[Warning: TF_REPEATED_DATA ignoring data with redundant timestamp for frame odom at time 338.607000 according to authority unknown_publisher
         at line 278 in /tmp/binarydeb/ros-noetic-tf2-0.7.5/src/buffer_core.cpp
Warning: TF_REPEATED_DATA ignoring d]]></description><category></category></item><item><title><![CDATA[[ERROR] [1679205317.445892, 0.000000]: Spawn service failed. Exiting.]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129650158</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129650158</guid><author>qq_46067306</author><pubDate>Sun, 19 Mar 2023 14:01:28 +0800</pubDate><description><![CDATA[[ERROR] [1679205317.445892, 0.000000]: Spawn service failed. Exiting.
[gazebo-1] process has died [pid 33325, exit code 255, cmd /opt/ros/noetic/lib/gazebo_ros/gzserver -e ode /home/yzxie/桌面/Autobot_ws/src/robot_model/world/box_house.world __name:=gazebo _]]></description><category></category></item><item><title><![CDATA[[ WARN] [1677989290.514888048]: TF_OLD_DATA ignoring data from the past (Possible reasons are listed]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129344409</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129344409</guid><author>qq_46067306</author><pubDate>Sun, 05 Mar 2023 12:17:29 +0800</pubDate><description><![CDATA[[ WARN] [1677989290.514888048]: TF_OLD_DATA ignoring data from the past (Possible reasons are listed at http://wiki.ros.org/tf/Errors%20explained) for frame base_footprint at time 306.526000 according to authority unknown_publisher]]></description><category></category></item><item><title><![CDATA[TeX文件和md文件的转换]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129121363</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129121363</guid><author>qq_46067306</author><pubDate>Mon, 20 Feb 2023 11:47:04 +0800</pubDate><description><![CDATA[TeX文件和md文件的转换]]></description><category></category></item><item><title><![CDATA[在vscode中编译LaTeX（tex文件）]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129120941</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129120941</guid><author>qq_46067306</author><pubDate>Mon, 20 Feb 2023 11:24:14 +0800</pubDate><description><![CDATA[在vscode中编译LaTeX（tex文件）]]></description><category></category></item><item><title><![CDATA[LaTeX语法整理]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129120471</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129120471</guid><author>qq_46067306</author><pubDate>Mon, 20 Feb 2023 11:05:51 +0800</pubDate><description><![CDATA[LaTeX语法整理]]></description><category></category></item><item><title><![CDATA[ROS中常用命令]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/128874690</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/128874690</guid><author>qq_46067306</author><pubDate>Tue, 14 Feb 2023 16:29:01 +0800</pubDate><description><![CDATA[ROS中常用命令]]></description><category></category></item><item><title><![CDATA[论文思路：移动机械臂自主开门策略仿真研究]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129029237</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129029237</guid><author>qq_46067306</author><pubDate>Tue, 14 Feb 2023 16:27:43 +0800</pubDate><description><![CDATA[自己写的论文大致思路，仅做个人记录需求]]></description><category></category></item><item><title><![CDATA[论文思路： 室内环境下移动机械臂的运动规划研究]]></title><link>https://blog.youkuaiyun.com/qq_46067306/article/details/129029227</link><guid>https://blog.youkuaiyun.com/qq_46067306/article/details/129029227</guid><author>qq_46067306</author><pubDate>Tue, 14 Feb 2023 16:27:10 +0800</pubDate><description><![CDATA[自己写的论文大致思路，仅做个人记录需求]]></description><category></category></item></channel></rss>