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2011-09-22 18:42:04 -0500 answered a question Best PC architecture to run Turtlebot

Thanks a lot for this answer. On the battery life problem, maybe something like this battery pack would help ?

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2011-09-22 16:34:16 -0500 marked best answer Best PC architecture to run Turtlebot

The choice of computer to run on the TurtleBot is a tradeoff of battery life for computation and price. In general more computation is better. However also in general longer battery life is better.

The choice of the dual core Atom processor in the Asus 1215N for the default processor provides enough processing to do all of the navigation stack and process the Kinect while leaving most of one core available for the user to develop their own functionality.

If you go up to an i7 or other more powerful CPU you can do more processing, but you need to be careful about what you're expected battery life is.

The same goes for the RAM though it's less power hungry.

It is definitely possibly to use the graphics card for certain applications. Right now the graphics card is most heavily utilized by visualization and simulation libraries which are not especially useful on the TurtleBot laptop. However there are CUDA bindings in the works for both PCL and OpenCV which could offload a lot of computatoin to the GPU soon. In Lucid the EeePC's Optimus technology is not supported, but I have heard of drivers working on Natty.

Using the EeePC is also a price optimization. The EeePC is in a highly competitive product space with many similar models from multiple manufacturers making computers with almost exactly the same specifications.

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2011-09-21 18:15:27 -0500 commented question Best PC architecture to run Turtlebot
Just found the answer to my last question it's around 13Gbps
2011-09-21 18:12:36 -0500 asked a question Best PC architecture to run Turtlebot

Hi there,

I was wondering if it's worth investing in a high end PC to run Turtlebot, rather than using the advised laptop.

  1. Would it really give a boost to run a big CPU (i.e. i72600) or is it throwing money out of the window ?
  2. Is it possible to use the graphics card processing capacity for some applications ?
  3. What is the RAM impact as well ?
  4. What is the data bitrate output of the Kinect ? edit: it's 13Mbps

I did not find much information on this topic, but if this type of question has already been answered I apologize in advance. Jonathan

2011-09-21 17:23:39 -0500 answered a question How to ssh into turtlebot?

You are using your own IP adress as a target ( You cant be the source and the target at the same time ! The idea of ssh is to log in from an other computer on the network. It should see turtlebot as a local IP, ideally something like 192.168.1.xx