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RE: [robotics-71] Next Contest Suggestion

From: steve g.
Sent on: Friday, May 9, 2008 8:12 AM
This set-up sounds good to me. 

I am going to mount both IR and ultrasonic sensors, so something that
would reflect both sound and light would be good.

Steve
 

-----Original Message-----
From: [address removed] [mailto:[address removed]] On Behalf
Of awolfe
Sent: Thursday, May 08,[masked]:49 PM
To: [address removed]
Subject: Re: [robotics-71] Next Contest Suggestion

Pretty much what I was thinking, with the exact position of Objects A &
B being variable per run.

To Steve's point, I agree on the principle that this should be a test of
obstacle avoidance - with no way to position the bot for a
pre-programmed run to and fro.

I'll see what I can find for obstacles to paint up for the next meeting
so we can check them out.  I'm thinking 12 oz soda cans, 1lb coffee
cans... what else?

Should we assume something hard painted white, for both light and sound
reflectivity?

On Thu, May 8, 2008 at 10:20 PM, Patrick <[address removed]> wrote:
> Are you thinking of a layout like this? See attached image. Where the
robot has to avoid an object on the right and then left (Or vice versa),
Get to area A then back?
>
> Patrick
>
> --- On Thu, 5/8/08, steve ghertner <[address removed]>
wrote:
>
>> From: steve ghertner <[address removed]>
>> Subject: RE: [robotics-71] Next Contest Suggestion
>> To: [address removed]
>> Date: Thursday, May 8, 2008, 12:15 PM We need to make sure the bot 
>> has to avoid the object.  The challenge from your suggestion with the

>> staggered obstacles is the bot will need to avoid the obstacles on 
>> the trip out and back, not just in one direction.
>>
>> -----Original Message-----
>> From: [address removed]
>> [mailto:[address removed]] On Behalf Of awolfe
>> Sent: Thursday, May 08,[masked]:33 AM
>> To: [address removed]
>> Subject: Re: [robotics-71] Next Contest Suggestion
>>
>> I'm thinking the bot gets placed first, then the obstacle gets placed

>> randomly (write a quick program to pick a location).
>>
>> Or - should we pick a bigger obstacle, like a 3 pound coffee can 
>> painted white, to increase the chances that there needs to be 
>> avoidance behavior?
>>
>> Or - would it be going to far to do:
>>
>> ====================­=================
>>
>>                          **
>>                          **
>>
>>                                                 **
>>                                                 **
>>
>> ====================­==================
>>
>> So that there's no straight shot through, and the bot is forced to 
>> detect and avoid an obstacle?
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 5/2/08, Patrick <[address removed]> wrote:
>> > Sounds great!!! How do you suppose we start? By that I
>> mean would the
>> object be placed on the field prior to staging your bot?
>> After you stage
>> your bot but not after it takes off? Or Stage your bot in the 
>> direction of the randomly placed object to purposely try to avoid it?
>> >
>> > Patrick
>> >
>> > PS: Could we post this thread on the message board for
>> visitors to get
>> the latest info on the group?
>> >
>> >
>> > --- On Fri, 5/2/08, awolfe <[address removed]>
>> wrote:
>> >
>> > > From: awolfe <[address removed]>
>> > > Subject: [robotics-71] Next Contest Suggestion
>> > > To: [address removed]
>> > > Date: Friday, May 2, 2008, 11:30 AM For the next contest I 
>> > > propose:
>> > >
>> > > (using football field metaphor)
>> > > Reuse the 4x8 playing field, with the addition of
>> white lines down
>> > > the sidelines.
>> > > Make an obstacle consisting of a regular 12oz
>> beverage can, empty,
>> > > painted white.
>> > >
>> > > Area A is the beginning endzone, Area B is the
>> opposite endzone.
>> > >
>> > > Define a new unmarked Area C, spanning the width
>> of the field and
>> > > the center 4 feet lengthwise (25 to 75 yard
>> lines).
>> > >
>> > > For the first round, one obstacle is placed in a
>> random position in
>> > > Area C.
>> > >
>> > > The competitor must leave area A, head to area B,
>> turn around and
>> > > return to area A without leaving the field of
>> play and without
>> > > touching the obstacle.
>> > >
>> > > Each competitor gets 3 attempts, with the best
>> time being the time
>> > > of record.
>> > >
>> > >
>> > >
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>> ([address removed]) from MTRAS ~
>> > > MidTn Robotic Arts Society.
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>> This message was sent by steve ghertner
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>> Society.
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>
>
>      
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MidTn Robotic Arts Society.
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>



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