yrsheld

@yrsheld

Joined on Oct 7, 2022

  • reference official website link bill's list [阿亨大禮包 202305] 餅乾如下: 01 可可酥 3224g=672g02 乳酥 244g
     Like  Bookmark
  • Wishlist 1. 施巴眼霜 (2條) (已買) ![image](https://hackmd.io/_uploads/B1r170gra.png =200x) Avaialble at dm (一瓶15ml, 8.95歐) image 2. 膠囊 ROSSMANN膠囊們 - 連結 DM膠囊們 - 連結
     Like  Bookmark
  • meow #include <iostream> using namespace std; class GfG { int i; public: GfG()
     Like  Bookmark
  • Basic theories Poles & zeros Given transfer function, what insights could we derive? Ans: stability of a linear system could be determined directly from its TF. Stable iff all components in homogenoues response would decay to zero as time increases, and this time constant is directly determined by the system poles. Frequency response: how the sys reseponse to different frequencies of input signals. Bring in complex numbers into the tf and evaluate the mag & phase --> freq response of the system. --> anayze sytems behaviors at different freqiencies, identify resonant frequencies, how system amplify or attenuate specific frequency components. If exist poles in RHP, what would happen? Ans: Means that there is a poles with positive real part (including lying on the img axis), and this component in the output owuld increase without bound, casuing the sytem to be unstable.
     Like  Bookmark
  • Imports import torch from torchvision import datasets, transforms from torch.utils.data import DataLoader 1. Transform Image transformation with torchvision.transforms. Common transforms include data augmentation, value scaling, value normalization. 1.1 Data Augmentatation Common: RandomCrop, RandomRotate, RandomHorizontalFlip...
     Like  Bookmark
  • Reference official ros wiki - Using a URDF in Gazebo official gazebo tutorial - ROS Control ros wiki - ros_control ros wiki - ros_controllers a simple demo from my repo - mybot Intro
     Like  Bookmark
  • Reference turtlebot3_autorace_simulation Line_follower_turtlebot My repository - Speed_limit_detect Intro Goal Autonomous navigation of Turtlebot3 with RGB camera (pi camera) Follow the yellow line on the ground.
     Like  Bookmark
  • Intro ROS version: ROS1 kinetic All codes available at Github. ros_control :package: Gazebo with ros_control Driving a simple mobile robot in gazebo. Notes
     Like  Bookmark
  • Reference Tiziano Fiorenzani - ROS tutorial My repository - ball_track Intro Goal Track a red ball with RGB camera. Move along to keep the ball in sight. If ball out of sight, rotate and search for it.
     Like  Bookmark
  • SSH into turtlebot ssh turtle1 How to use the respository on the pc? The respository already in turtlebot? Only need respository in turtlebot, don't need in main pc? Main pc only runs roscore? WHich branch to use? (dev/master) How to bring up the turtlebot (turtlebot_igmr_bringup.launch)
     Like  Bookmark
  • Ex 1. View into the future 1. Robots can be classified according to the norm ISO 8373:2012. 2. Explain the main differences between industrial and service robots in terms of application fields. Industrial robot: applied in industrial automation applications. Service robot: performs useful tasks for humans or equipments excluding industrial automation appications. 3. The “Measurement Chain” according to DIN 1319-1:1995 Ex 2. Control and feedback control systems
     Like  Bookmark
  • :::info replace all $(myenv) with the name of virtual env ::: Step1. Activate virtual env conda activate $(myenv) Step2. Install ipykernel ipykernel provides Ipython kernel for jupyter pip install --user ipykernel
     Like  Bookmark
  • Intro :::info This is for Gazebo-classic. Users of Ubuntu 18.04+ could switch to Gazebo Garden for more advanced functionalities. ::: Gazebo plugins enables the simulation of models and sensors, such as drivers, cameras, lidars, etc. Aside from some common tags (ex: updateRate, visualize), different plugins have different custom parameters that could be configured. Lists of available plugins could be found at the official Gazebo Tutorial.
     Like  Bookmark