Line follower with an obstacle?????

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Vivek.psg
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Hey there.... Im tryin to build a line follower which could trace a line, navigate through obstacles and can find victims... the victims are flashing leds..... im usin the AT89s52 Hbridge and ir receiver and sensors to follow the line.... which equipment i should buy for my line follower to avoid an obstacle and help to find a victim..... pls send me the circuit diagram too if you have...... 

aamiraarfi
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@Vivek.psg

hi vivek

kindly post your arena details.. or picture..

 

shashwat
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Identification of obstacles and victims

Hi Vivek,

They are a number of ways to identify and avoid obstacles. It depends on the type of obstacles being used in the competition. Same is the case with finding victims. As Aamir as already mentioned in the above post you need to post more information regarding obstacles and victims.

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Vivek.psg
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ARENA DETAILS....

thanks,

 

Actually im trying to buid a robot to participate in the robotics contest held at NIT Trichy.....

they have listed the Arena details in their site....

the  event format is  at http://pragyan.org/10/home/events/robovigyan/pip_bot/

the rules for the event is at http://pragyan.org/10/home/events/robovigyan/pip_bot/

Note:- This post has been edited by Vivek.psg at Mon, 2010-02-08 16:39.

aamiraarfi
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pitbot: nit trichy problem statement
Problem Statement
 
Build an autonomous line follower robot which would negotiate the obstacles and navigate to the empty parking slot.
 
Arena Specifications
 

The arena will have 3 parallel tracks which are indicated by the black lines of width 3 cm on a white background. The distance between any two adjacent tracks will be 32 cm. Obstacles will be placed on each track. The bot has to navigate to the empty parking slot and indicate the completion of the task. Before entering the parking zone, the bot has to indicate the reach of checkpoint. At the checkpoint, 5x5 array of IR-LED’s will be placed at the right side of each track. The obstacle will be a white colour wooden block of dimensions 5 cm x 5 cm x 10 cm. The track may have sharp turns. There are parking slots available at one end of the arena. At any point of time, only one parking slot is empty. The filled in parking slot will be a space of 30cm x 30cm x 20cm 3-walled box as shown below. The same can be used for signaling the completion of task. 

 

 

Number of tracks in the arena : 3
Distance between the tracks would be 32cm (approx.).
Width of the track : 3 cm.
Dimensions of the obstacle (Wooden Block) : 5 x 5x 10 cm.
Array of LEDs would be placed at an elevation of 10 – 15 cm
Now its more clear. By the time i figure out a solution, I will let other botskool users to think of a simple solution..

 

Note:- This post has been edited by aamiraarfi at Mon, 2010-02-08 23:55.

Vivek.psg
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line follower with obstacle navigation

Hi... guys

 

I have done my hardware and circuit part... can some one help me with hardware and circuit to detect and avoid the obstacle... Im running out of time.... plz reply....

Vivek.psg
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C PRogram ERror

hey guys

 

kindly  Check the c program  that you shown in the page http://www.botskool.com/tutorials/electronics/8051/line-follower

 

 

and the files that you have for downloading at http://www.botskool.com/downloads/electronics/linefollower/linefollower.c

 

you have missed the following line in the file to be downloaded

 

P0_0=1; /*Enable pin of the left half of the H-bridge*/

P0_4=1;  /*Enable pin of the right half of the H-bridge*/ 

 

Update it