Crater: a crawling all-terrain robot

 

Around mid May 2009, I discovered that in Sydney, just before my 60th birthday, the 2009 Australasian Conference on Robotics and Automation (ACRA09) would take place. I decided to submit a paper. I intended to model the movements of a legged caterpillar-like robot and present my preliminary results. After three months, I had the paper ready for submission. You can read it by clicking here. Two people reviewed the paper. The results were as follows:

Summary of reviews of pap103s1
RelSoundImpOrig PresOverallRecConfExp
Reviewer 19787 68STRONG ACCEPT7Expert
Reviewer 25453 54WEAK REJECT5Some background
Averages7.05.56.55.0 5.56.03.56.03.0
Rel: Relevance [0-9] (higher is better) Sound: Technical Soundness [0-9]
Imp: Technical Importance [0-9] Orig: Originality [0-9]
Pres: Quality of Presentation [0-9] Overall: Overall rating [0-9]
Rec: Recommended action [REJECT, WEAK REJECT, WEAK ACCEPT, ACCEPT, STRONG ACCEPT]
Conf: Level of confidence in your recommendation [0-9]
Exp: Level of your expertise in the relevant area [No background, Some background, Knowledgeable, Expert]

It was a split decision, with one reviewer strongly recommending the acceptance and one weakly rejecting it. It is interesting to notice that one reviewer systematically gave positive marks, while the other one was consistently negative. I found it very surprising that the second reviewer gave 3/10 points in originality, considering that only one paper on a caterpillar-like robot is to be found in the literature, and it was written in 2002... Anyhow, the paper was rejected. The chairman of the reviewing committee told me that they almost accepted it but, after a protracted discussion, preferred other submissions. Well, it was a long shot, and I am indeed no expert in robotics. Perhaps I was a bit (or a byte ;-) arrogant in thinking that in a few months I could cook up a paper for a major conference...

The applet you see on the right of this text shows how a robot consisting of a series of flexible segments would move. The caterpillar takes a step every time you click on "Tick". You can type a number in the input field and click on the "Set scale" button to enlarge or shrink the caterpillar. The button "Set delta psi" lets you change the rotation of the head segment when it takes a step. "Set f" sets the fraction of step, whereby 1.0 means that the caterpillar head takes the longest steps it can.

Click here to view the the sources of the applet. I designed it in such a way that you can also run it from a command line rather than within a browser. To do so, you need to download the file crater.jar and execute the command: java -jar crater.jar. Obviously, it will only work if you have a Java runtime on your system and its folder is included in the path.

You can contact me at email address .
/crater/index.jsp was last modified on 2009-11-07 13:50:42 AEDT (Australia/Canberra with daylight saving = GMT 11)
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