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Toys

Transforming a Laptop into a Robot 140

NathanZ writes "Evolution Robotics is selling what looks like a docking station on wheels as a way to transform a laptop into a robot. I'm not exactly sure how this can be useful since the "robot" has no arms. According to their website, "you can train your robot to do things like recognize objects and places, send email, take pictures and video, respond to voice commands, and more!". Yipee. At least it would give me something to do with that old Toshiba laptop sitting in the closet."
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Transforming a Laptop into a Robot

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  • by murphj ( 321112 ) on Thursday May 23, 2002 @10:00AM (#3572105) Homepage
    From the webpage:

    Requirements for your laptop
    (Not included with purchase)

    Windows 98 or higher
    Pentium II - 800 MHz or faster
    256 MB RAM
    50MB Hard disk space
    2 USB ports
    (directly on laptop or via hub
  • by MrJerryNormandinSir ( 197432 ) on Thursday May 23, 2002 @11:15AM (#3572693)
    This is a joke right? I've been building / designing robots for years. First of all Microsoft Windows isn't the OS of choice for robotics. I use a handyboard (http://www.handyboard.com), for one robot, a embedded controller running Linux for another robot, and a 68332 controller for yet another design. I use Linux to develop code for all three, and the embedded controller also run Linux as it's OS. The other two robots make use of Linux for code generation (GCC for the 68332 robot) and IC for the handyboard.

    You need lots of Digital IO and lots of A/D and D/A ports if you want to build a real robot. I've
    got sonar, and I'm going to use the CMU cam for vision recognition (http://www-2.cs.cmu.edu/~cmucam/). The embedded controller based robot also as a wireless 802.11b connection to my home LAN.

    I wouldn't spend $599.00 for a robotic base that hooks up to a lpatop. I am guily of building the CMU pprk robot to be driven by a Palm Pilot http://www.acroname.com/robotics/parts/R91-PPRK-3. html but at least that has a holonomic drive system and Infrared Proximitty detection. I just
    wanted to play more with a holonomic drive.

    before you spend $599.00 do some research.

    My next robotic platform is going to use the
    Power wheels Wild thing as a base. I'll be taken a dremel tool to the toy. It will also use optical encoders to detect wheel position, Polaroid Sonar, IRPD, an embedded PC-104 controller, a homebrew A/D PC 104 card, a hombrew Digital IO card, a homebrew D/A PC104 card, a homebrew TPU card, a homebrew H-Bridge, and a homebrew servo controller. But I will be using the CMU Vision recognition system and DLINK USB->802.11b adapters.

  • Re:"Experiment" (Score:1, Informative)

    by Anonymous Coward on Thursday May 23, 2002 @01:31PM (#3573770)
    I get the sense that work in robotics is on the upswing, at least in academics. People like Olaf Sporns [indiana.edu] at Indiana or Dave Touretzky [cmu.edu] at CMU are doing interesting work with robots, but they aren't likely to get as much attention as laptops with wheels.
  • by SimHacker ( 180785 ) on Thursday May 23, 2002 @02:51PM (#3574284) Homepage Journal
    Last weekend I assembled one of Evolution's robots, set up the software and read over all the included sources and documentation. It pretty much works as advertised, and is quite flexible, but it needs more example source code and further development.

    I'm working on a robot project with the Stupid Fun Club [stupidfunclub.com], and we're going to build the Evolution laptop into a much bigger heavier duty robot body, to control it. [These people started the Robot Wars competition, but this particular robot is designed to be peaceful, even friendly and social.] The big friendly robot is still under construction, so I decided to assemble Evolution's cute smaller modular robot to see how it works.

    It took an afternoon to put together the lego-like parts to build the Evolution robot kit. It included a bunch of aluminum beams, lots of ingenious modular plastic connectors, nuts and bolts, wheels and motors, bump and IR distance sensors, and some awesome ultra-heavy-duty velcro.

    The IR distance sensors were somewhat tricky to attach, had flakey connectors, and don't all work; but everything else was quite straightforward and easy. I haven't had so much fun with legos in years!

    We're using a laptop recommended and preconfigured by Evolution: an IBM Thinkpad type 2612-1bu. Most interesting is the software, which runs on Linux. Evolution has developed a "robotic operating system", which is written in C++ and configured with XML.

    It has a visual behavior programming language for connecting together boxes (representing software behavior modules) with wires (representing data types of input and output parameters).

    It's kind of like the "SimAntics [lushcreations.com]" language used to program The Sims, but much simpler, more general purpose, and extensible.

    The behavior modules are implemented in C++ and compiled into dynamically linked libraries or built into the application. There's a C++ SDK for programming your own behavior modules, with which I've just started experimenting.

    XML schema files describe the module interfaces (name, description, library, symbol, parameters, input and output ports with data types, etc). They're not standard XML-Schema, just Evolution's own special purpose behavior schema format, which is appropriate for the task.

    XML behavior files assemble a bunch of modules and connect them together into high level behavior networks, which you can use to build even higher level behavior networks in a modular fashion.

    There's a visual programming tool implemented in Java that lets you graphically construct networks of behavior modules, or you can simply type them in as XML in a text editor.

    Unfortunately the behavior construction tool isn't integrated with the behavior execution engine, so you have to run them separately, so you can't actually edit the behaviors in place while they're running.

    Other visual programming languages like SimAntics and Bounce [catalog.com] let you edit live programs while they are running, which is extremely useful.

    The software side of the Evolution robotics kit includes modules for voice synthesis and voice recognition (IBM's ViaVoice libraries), as well as video capture, some simple image processing, sensor reading, motor control, network communication, teleoperation, a simple emotion engine and animated human face, and a bunch of other stuff.

    But unfortunately the source code for many of the interesting modules is not included, so if they don't do exactly what you want you have to replace them from scratch.

    For example, the human face emotion animation module doesn't support texture mapped faces. That's fine if your robot's face is Kermit the Frog, but I want to use face skins from The Sims. If Evolution decided to include more module source code with the SDK, programmers would be able to customize it more easily, instead of reinventing the wheel.

    In summary, I like Evolution's modern and open architecture, and the code that I've seen so far is quite well designed and nicely written. But I'd like to see more code, please! One of the big problems in robotics is smoothly integrating many different pieces of software and hardware, and I think they've taken a good approach to that problem. Now they have to enable developers to easily integrate many different software and hardware modules, and let them all fight it out.

    -Don

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