••••► Lego NXT Mindstorms Robots ◄••••

☆ Trash Collector & Sorter ☆

Built by 2nd year Mechanical Engineering (BEng) students [2006-2010] at Heriot-Watt University, Dubai Campus.

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Functions of Tribot:

1. Searches for the ball
2. Goes ahead and grabs the ball
3. Moves back and turns 90º clockwise
5. Goes forwards and follows the black line
6. Drops the ball on the tire
7. Goes to starting position
8. Searches for another ball

Functions of Crane-bot:

1. Waits until ball is detected
2. Opens the jaws and moves down
3. Closes the jaws to grab the ball
4. Moves up the same distance
5. Senses the ball's color
6. Turns right/left 45º depending on the color
7. Opens the jaws to drop the ball in the bin
8. Turns back to starting position
9. Waits for another ball

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Group Members:
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Muhammad Hasan Shariq
Hassam Nasrullah
Hashem Anwari
John Kaiser
Saeed Mohammed
Wasil Qayyum
Mohammad Asif
Mohsin Memon
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Category:

Science & Technology

Tags:

• Robotics
• Engineering
• Mechatronics
• sensor
• sorter
• latest
• Dexterous
• Robots
• robot
• new
• robotics
• technology
• 2008
• Artificial
• Intelligence

[BeauchampIII]

Good stuff, but the programming for making the robot follow the line is inefective. Instead of having it waddling back and forth you can add a few extra lines which means when it gets onto a straight black line it will run along it, making the overall speed quicker :)

[hwud1]

I could use only 1 light-sensor on the tribot, and the concept you mentioned, can only be applied if 2 light-sensors are used.

(Thats because, if Black says 'go straight', it cant be 100% staight, i.e. it will touch the white part at some time [even while on the straight track], and White command then has to be 'Turn' to get into black part, but again it will goto the other side of the black line!. Unless there are 2 light-sensors which would sense both edges of the black line simultaneously)

[palisade42]

Uh, why not put a different color strip at the end to indicate when to stop. Then while it is driving along the line it simply says drive straight until you hit the end. And, instead of using a curved path, it straight with each corner having "turn left or right" color strip. So, a yellow stripe for stop, a blue stripe for turn right, and a green stripe for turn left for example. You could do away with the black stripe then, unless you wanted it for show.

[hwud1]

Yup.. you're right about using different colors to make it run better.. However, i feel lucky that i didn't use many colors..! because, when we went to present these Robots, the tribot's light-sensor (at some stages) couldn't differentiate between colors (black, white, red, blue - it was all black for it) thats because of the high light intensity above, which caused the dark shadows!, so i had to re-program it over there!. so that means, i wud have had to edit lots of conditions for many colors!

[jasimracer]

Nice one yaars.Oh and congrats!!

[hwud1]

Thanks :)

[yoooTwoob]

heyy.. u made use of 2 mindstorm kits !!.. nicee :)

[elmo191]

omg.. this is so cool !!... i love it when it puts the ball on the tire.. @ 0.54 and then it goes back ..haha

5 star rating for this one!!!

[LoV3rBo11]

its an awesome thing dude...m planning to do robotics for uni..hope i can do this crazy stuff than :)

[pabloski987]

good job

[doggy3322]

im makin these in school

[emz490]

Verrrry nice :)

[SaeedOshee]

Ahh the good old days :D

[Xxninja195xX]

wall-e prototype?

[sks220]

THAT WAS EPIC!!!!! and i liked the music too, it was a nice touch

[robson1014]

what's song ?? 5/5

[SchuermansLaurent]

nice programming