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Author Topic: problems in detection ( small model of robot soccer ) ..  (Read 788 times)

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Offline DagashTopic starter

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problems in detection ( small model of robot soccer ) ..
« on: February 12, 2011, 03:28:23 AM »
hi everybody
here i am working in smaller model of ( robot soccer ) ..
i work hardley to make it playing autonomously ( without computer ) .. (( i said smaller model in above :lol: )) , just i used ( Picís - sensors - servo motors ).

this is some details about what i work in :
every team have 3 players ( goalkeeper + 2 on the ground ) .
ground are closed from all directions ( as square ) , so no ( out - throw in .. etc ) .

my problems includes 3 things :
1 - how can player detect his team ..?
2 - how can player detect opponents ..?
3 - what is the suitable method to dribbling , passing and kicking ( scoring ) ..?
4 - how can the goalkeeper play .


about the 4th point , i just make the goal keeper follow the ball and if distance between ball and goalkeeper is 2 cm and less the goalkeeper move forward for ball side , but still have problem with keeping it in goal zone and not exceed it .

after simpl and little try ( with one player ) i dont know how can players back to the intial position to start a match ( after score a goal ) ...


in first model i made , i used ( pics - sensors ( reflective ) - servo motors ) and just 2 players ( 1 player + 1 goalkeeper ) , i noticed slow response but i dont know why ..!!?? anyone can tell me about Pics have good features .. ??

i would like to see another suggessions for any thing .

ill attach some pictures about the headlines and assumptions soon .

Offline DagashTopic starter

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Re: problems in detection ( small model of robot soccer ) ..
« Reply #1 on: February 19, 2011, 06:23:22 AM »
about microcontroller i used PIC16fXX family ,, but i will try AVR , ithink it have a faster response .
for detection and for simplified i used ir sender and receiver and i notice there is disturbance in response ( actually i said not precise ) .. i bought reflection type of sensor but ill try after 21th of this month ( i have Exaaams ) , also i am looking for more details about ( Sharp Analogue InfraRed Range Finding System (AERS) with cable GP2D12 ) ..!!

about detect opponents simply i think in colour sensing ( detecting ) but it is still not a good choice ..( i have an idea for provideng any team with a radio connection but that make a response so slow and also make over ( full of ) than PIC can take ) , i see if communication done by an external device .

even now i couldnt find any things about dribbling and kicking ,,and how players decide shooting or not or passing ,,

ooh i forgot this , each player have ( pic + 2 servo + wheels + sender & reciver ir )
also there is problem in a rotation and movement in correct form.

everyone need any info , just tell me

Offline DagashTopic starter

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Re: problems in detection ( small model of robot soccer ) ..
« Reply #2 on: February 25, 2011, 01:28:02 AM »
i working now in functions of play .

functions are :
- driblling
- exploring ( team or opponents ) .
- passing .
- get direction for goal .
- 2 function for goal keeper ( attacking and passing ) .
- shooting ( scooring goal ).
- possiton for attacking and defence . ( i think this most difficult issue here ) .
- possition after scooring , to reset all robots to the center point and play again .
shooting and passing mechansim need a spring to charge the kick , i work in two levels , first for passing and the other for scorring .. thats mean dribbling can be excute through player movement for several direction .

i am using C for programming , so i will share my code with this language ... ok

* i am looking for the maximum speed for everything ( response , movement , possition and ....etc .
when i leaves using a camera and computer i lose the fastest response to the whole play ( match ) , so i try to found a good alternators for all components and try with its .

dagash
     
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