caramoan tour package

caramoan tour package

Author Topic: line follower option  (Read 1961 times)

Offline mArKhAo

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line follower option
« on: October 19, 2008, 01:03:24 AM »


eto ung super tip lorry sa e-gizmo.. ung chasis na ginamit sa my first bot



to namang isa, ung 4WD  na auldey.. rc car..


which is much more complicated to handle? ???
kasi ung auldey na rc car, dalawa ung dc motor nya, isang reverse/ forward then ung isa, for left/right lng..

ung isa naman, dalawa lng ang gulong both for same purpose,,,
alin kaya ang mas precise sa kanilang dalawa? ??? tips naman jan..  ;D

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line follower option
« on: October 19, 2008, 01:03:24 AM »

Offline rdpzycho

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Re: line follower option
« Reply #1 on: October 19, 2008, 01:11:15 AM »
secret. ;D ;D ;D

in terms of turning radius, lamang 'yung dalawang gulong ang control. ang minimum turning radius niya ay 0, kapag totally pinag-iba ng direction 'yung dalawang motor.

in terms of challenge, mas challenging mag-control ng RC type na sasakyan. malaki ang minimum turning radius (aggravated by the fact na walang differential ang driving wheels). madalas mis-aligned pa ang mga gulong nito (mahirap gawan ng paraan 'yung gulong sa harap, pero kaya naman ng epoxy gawan ng paraan ;D).

for the same motor and gear ratio, the smaller the wheels, the higher the torque. compromise na 'yun between speed and acceleration.
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Re: line follower option
« Reply #1 on: October 19, 2008, 01:11:15 AM »

Offline mArKhAo

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Re: line follower option
« Reply #2 on: October 19, 2008, 01:15:17 AM »
secret. ;D ;D ;D

;D ;D ;D ;D ;D ;D

hehe.. madaya.  :D

nakakadagdag ba ng torque ang gearbox? ??? hehe
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Re: line follower option
« Reply #2 on: October 19, 2008, 01:15:17 AM »

Offline rdpzycho

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Re: line follower option
« Reply #3 on: October 19, 2008, 01:19:38 AM »
kapag may speed reduction, may torque addition. parang transformer din kung sa voltage and current, kapag step-up 'yung isa, step-down 'yung isa. speed is normally proportional to voltage and torque to current.

mas maganda gamitin 'yung 2 gulong lang ang control. pero kung mapapanipis mo pa 'yung katawan, the better. kapag malapad 'yung chassis mo compared doon sa sinusundang linya, pwedeng maglikot 'yung mobot sa straight line. though lahat naman 'yan masosolutionan sa program mo. ;)
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

"For every difficult problem there is always a simple answer and most of them are wrong."
- Clayton Paul

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Re: line follower option
« Reply #3 on: October 19, 2008, 01:19:38 AM »

Offline mArKhAo

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Re: line follower option
« Reply #4 on: October 19, 2008, 01:26:32 AM »
e, ilan ung number ng sensor na mas  magiging precise ung takbo? 
may mga napanuod kasi akon andaming sensor sa bumper.. hehe tapos ung iba, 3 pairs lng...

Quote
speed is normally proportional to voltage and torque to current.
parang may nabasa na aqng ganito.  posible ba pong babaan ung current consumption ng dc motor kung speed naman ang kailangan?

hehe, sayang wala na si creedcradle., may nakita akong gawa nya dito sa forum, ung madaming mosfet as h-bridge...

eto na kasi ang next project q ngaung sem break.. hehe :D natapos q na ung sa bluetooth..
salamat sa lahat ng tumulong sakin dito sa forum ;D ;D ;D
cut my heart out, for a souvenir....

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Re: line follower option
« Reply #4 on: October 19, 2008, 01:26:32 AM »

Offline rdpzycho

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Re: line follower option
« Reply #5 on: October 19, 2008, 01:31:22 AM »
hmmm. medyo mahirap explain 'to pero ang relationship ng current at voltage sa motor ay related sa torque curve ng motor. at rated speed and rated load, constant power na siya at wala ka nang magagawa, kapag may ipinagkait kang isa, mababawasan din 'yung isa. ;D

kung hindi aabutin ang rated load, at lower currents, aabutin pa rin ang rated speed.

for a race na maraming liko, acceleration ang kailangan mo, hindi speed. ;D
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

"For every difficult problem there is always a simple answer and most of them are wrong."
- Clayton Paul

Offline mArKhAo

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Re: line follower option
« Reply #6 on: October 19, 2008, 01:44:42 AM »
ung poblema naman sa maliit ang gulong, malakas nga ang torque, mabagal naman ... hehe, unlike dun sa isa, mas malaki ang gulong.. :D

for a race na maraming liko, acceleration ang kailangan mo, hindi speed. ;D

hehe  ;D acceleration pala..
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Offline rdpzycho

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Re: line follower option
« Reply #7 on: October 19, 2008, 01:46:05 AM »
compromise na 'yun. ;D kapag dadaan ka sa zigzag, hindi rin useful ang sobrang bilis. ;D
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

"For every difficult problem there is always a simple answer and most of them are wrong."
- Clayton Paul

Offline mArKhAo

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Re: line follower option
« Reply #8 on: October 19, 2008, 01:49:48 AM »
hehe.... mukang mahirap mag gawa ng mabilis na line follower ah.. hehe
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Offline paranz

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Re: line follower option
« Reply #9 on: October 19, 2008, 05:55:32 AM »


eto ung super tip lorry sa e-gizmo.. ung chasis na ginamit sa my first bot



to namang isa, ung 4WD  na auldey.. rc car..


which is much more complicated to handle? ???
kasi ung auldey na rc car, dalawa ung dc motor nya, isang reverse/ forward then ung isa, for left/right lng..

ung isa naman, dalawa lng ang gulong both for same purpose,,,
alin kaya ang mas precise sa kanilang dalawa? ??? tips naman jan..  ;D



kung gagawa ka ng obstacle-avoidance robot, or something similar, use the first car (super tip lorry), since it is differential drive..

if you want to join the MADC line following mobot race, use the 2nd RC car chassis
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Offline maldihtah13

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Re: line follower option
« Reply #10 on: October 19, 2008, 11:20:33 AM »
ako preffered ko rin un una.

Offline beginner wan

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Re: line follower option
« Reply #11 on: October 19, 2008, 01:38:38 PM »
hehe.... mukang mahirap mag gawa ng mabilis na line follower ah.. hehe

kayang kaya mo yan mark.. hehehe.. ;D ;D ;D
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Offline bigbuyobuyoboy

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Re: line follower option
« Reply #12 on: June 12, 2010, 11:15:27 AM »
yes.. and if you were the one who designed your own gearbox you can achieve the torque that you want...
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Re: line follower option
« Reply #12 on: June 12, 2010, 11:15:27 AM »

 

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