My Work Time line

Welcome to my Activity Log!!! My Research topic is " Co-operative mappingg by using a swarm of sensors". The first target to achieve is to build up knowledge about using Ubuntu and ROS kinetics.

Installation

Ubuntu seems new to me as i always worked on window versions of operating systems. So for me task 1 was to install Ubuntu and make myself familiar to its working. When i started Ubuntu installation, i had to face problem because my system was not ready to accept different operating system. It started screaming out loud to warn me but i keep going. After 3 failures i became successful in Ubuntu installation over the cost of data in my hard drive.

[Ubuntu Official Website]

Installing ROS

Next task was to install ROS kinetics. Installing ROS Kinetics was not difficult after watching few tutorials on you tube.

Learning ROS

Use ROS Tutorials

How to add a new Package in workspace (27-06-2017)

Insert non-formatted text here

$ cd catkin_ws // go in workspace
$ cd src //go in source directory
$ git clone https://github.com/ros-drivers/usb_cam.git  // download package
/catkin_ws$ catkin_make //go in workspace and run catkin_make
$ source devel/setup.bash   // run it
$roslaunch usb_cam usb_cam-test.launch // to launch package

Interfacing 3D Camera

http://wiki.ros.org/realsense_camera
https://01.org/developerjourney/recipe/intel-realsense-robotic-development-kit

Working with Lidar

Read this tutorial

http://wiki.ros.org/hokuyo_node/Tutorials/UsingTheHokuyoNode

==For Lidar==

first run roscore
then hokuyo_node
after it tf function
for tf function
rosrun tf static_transform_publisher 0.0 0.0 0.0 0.0 0.0 0.0 map my_frame 100

http://answers.ros.org/question/195962/rviz-fixed-frame-world-does-not-exist/

Then run rviz
rosrun rviz rviz

For navigation stack

https://github.com/ut-ims-robotics/tutorials/wiki/Navigation-stack

Recording and playing bag file

For this purpose Lidar scan was used and following steps were performed.

1. roscore
   
2. hokuyo_node was run rosrun but lidar was connected rosrun hokuyo_node hokuyo_node
   
3. rviz run by using this command rosrun rviz rviz
   
4. laser was selected in fixed frame option menu in Display
   
5. laser scan was added from add option