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2018-03-13 07:37:48 -0500 asked a question How to add a singleton logger class to my package?

How to add a singleton logger class to my package? Hy all! I am writing my thesis work in ROS. I have to implement a lo

2018-02-13 03:09:01 -0500 commented question ardrone2.0s coordinate system

and just a comment for the open source saga: documentation is PART OF CODING AND EVERY JOB!!! But as i see, many of the

2018-02-13 03:07:42 -0500 commented question ardrone2.0s coordinate system

I clearly explained in my comments and question... i cannot do this better i think. I give my best to this thesis and my

2018-02-13 03:05:32 -0500 commented question ardrone2.0s coordinate system

ROS should think about this user group too. If they do that, ROS could become even bigger and bigger

2018-02-13 03:04:33 -0500 commented question ardrone2.0s coordinate system

ROS tutorials should think about the real starters (n00bs) for the robotics: they don't have x years of experience of ro

2018-02-13 03:01:15 -0500 commented question ardrone2.0s coordinate system

There's also plenty of books, articles, and documentation (and this site) that explain a lot of ROS (which is what you'r

2018-02-13 01:53:35 -0500 edited question ardrone2.0s coordinate system

ardrone2.0s coordinate system Hy community! I am writing my thesis at the university about Localization and navigation

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2018-02-07 08:14:27 -0500 commented question Tf: refresh broadcaster's sendTransform parameters

GG, thanks

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2018-02-04 14:39:00 -0500 asked a question Tf: refresh broadcaster's sendTransform parameters

Tf: refresh broadcaster's sendTransform parameters Hy Community! I am really new in ROS tf, but i am starting to be fam

2018-02-02 03:36:27 -0500 commented answer Run/create a first fixed frame with NO_PARENT

There is no tutotrial which expains how to create the world frame from the indoor localization system data

2018-02-02 03:35:58 -0500 commented answer Run/create a first fixed frame with NO_PARENT

and how can i do this? i have the same problem: i have an indoor localization system (marvelmind), which gives me the lo

2018-02-02 03:04:42 -0500 commented answer Run/create a first fixed frame with NO_PARENT

and how can i do this? i have the same problem: i have an indoor localization system (marvelmind), which gives me the lo

2018-01-31 02:48:09 -0500 commented answer ardrone2.0s coordinate system

I have just asked them too :) thanks for the help lads!

2018-01-31 02:10:49 -0500 edited question Does marvelmind_nav package has tf support?

Does marvelmind_nav package has tf support? Hy Community! I am using marvelmind_nav package with ROS Indigo Igloo. And

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2018-01-31 02:10:42 -0500 edited question Does marvelmind_nav package has tf support?

Does marvelmind_nav package has tf support? Hy Community! I am using marvelmind_nav package with ROS Indigo Igloo. And

2018-01-31 02:09:27 -0500 asked a question Does marvelmind_nav package has tf support?

Does marvelmind_nav package has tf support? Hy Community! I am using marvelmind_nav package with ROS Indigo Igloo. And

2018-01-30 04:50:39 -0500 commented answer ardrone2.0s coordinate system

I use Marvelmind indoor ultrasonic localization system. Repository link ROS integration

2018-01-30 04:50:17 -0500 commented answer ardrone2.0s coordinate system

I use Marvelmind indoor ultrasonic localization system. Repository link ROS integration

2018-01-30 02:49:05 -0500 commented answer ardrone2.0s coordinate system

So somehow i have to create a tf frame for the indoor localization system, and after that this transformation will be ea

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2018-01-29 08:23:58 -0500 commented answer ardrone2.0s coordinate system

Thank you! :) Just one more question, because it is difficult for me to understand, and i am confused right now: is ther

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2018-01-29 05:37:22 -0500 marked best answer ardrone2.0s coordinate system

Hy community!

I am writing my thesis at the university about Localization and navigation of ARDrone 2.0. I have read all of the available topics and documentations for the ros support of ardrone, but i have a problem which i could not solve yet.

I know, that i can get the position data from ardrone's /ardrone/odometry topic. And i know that too, that if i get an msg object on that topic, the position data is in the msg->pose.pose.position field!

But can somebody explain to me HOW THIS POSITION DATA IS DETERMINED??? How does the drone's coordinate system works? HOw can i get this coordinate system?

This is important to me, because i have an indoor localization system, and with the help of it i plan the start and end point of the path. But thanks to the turbulance and the noise of the drone, the provided data of the localization system is very noisy during the "travelling".

So i figured out that i have to transform the indoor localization data (start coordinate, end coordinate, orientation) into the drone's coordinate system. But this is not clear to me how this inner coordinate system works. And i could not find any info about it either ... yet.

So i hope you could help me! This is very important, because it is the last step of my work to finish it! My mathematic model is perfect, and i coded it properly. But the perception of "did the drone reached the destination" doesn't perfect.

I'm using Indigo Igloo in Ubuntu 14.04 virtual machine! And ardrone_autonomy as well.

Thank you in advance! Yours, Steve


Update:

Thank you for answering this fast lads! I appreciate it!

So is there any way to "visualize" / draw up any kind of coordinate system to my calculations? I would like to do some kind of "coordinate transformation" on my own in order to get the destination coordinate in the Drone's coordinate system.

The aim of this calculation is to supervise the drone's travelling to the destination point: if the drone not turned enough and started to travel to a wrong direction, i could shut down the process automatically. OR if the drone has arrived to the destination's environment (for example 30 cm distance from that point), i could send a signal to the drone which tells it to STOP, YOU JUST ARRIVED TO YOUR DESTINATION!


Update2

I am so sorry that ARDrone autonomy's documentation is so imperfect. I mean the coordinate frames chapter is only 1 page long... And there is not any concrete documentation of how drone frames is related to each other, how or when odom tf is set up... Why do i have to take the time to figure out such important things like that???

Why can't be just one man or a team who write the documentations RESPONSIBLY? It is very annoying!!!

2018-01-27 04:13:11 -0500 answered a question ardrone2.0s coordinate system

Thank you for answering this fast lads! I appreciate it! So is there any way to "visualize" / draw up any kind of coord

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2018-01-26 07:44:18 -0500 commented answer ardrone2.0s coordinate system

I tried this package before, does not worked... And this is not the best solution for me, because there are lot of unnec