how can i get my robot to move 96" forward and 48" ?

i have the vex robotic kit the basic for now and i have to get it to move 96" and 48" separately. i need to know hot much seconds will i have to run it for to go 96" and 48". or how high must i set the encoder. if u need more info on the robot go to robotc.net and click the vex not lego

Cameron is wrong, encoders can not be set to seconds!

You can use Dead-Reckoning to compute the distance traveled by your robot. Dead-Reckoning uses the pulses of the encoder to compute distance traveled and even orientation of the robot and it is easily implemented.

It is a little bit long to type here but you can check up the following paper, just read the first 5 pages:

http://www.cs.biu.ac.il/~galk/teaching/sadna/Map-or-Localization/umbmark.pdf

Basically the encoder pulse setting number will depend on the wheel diameter, resolution of the encoder (number of counts per turn) and gear ratio between the encoder and the wheel.

You can also use the encoder pulses for making your robot going straight or turning in precise angles.

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2 thoughts on “how can i get my robot to move 96" forward and 48" ?

  1. Can you do some trial and error?

    Set the encoder for so many seconds and measure how far it goes.

    Then adjust the seconds up or down to get your desired length of movement.
    References :

  2. Cameron is wrong, encoders can not be set to seconds!

    You can use Dead-Reckoning to compute the distance traveled by your robot. Dead-Reckoning uses the pulses of the encoder to compute distance traveled and even orientation of the robot and it is easily implemented.

    It is a little bit long to type here but you can check up the following paper, just read the first 5 pages:

    http://www.cs.biu.ac.il/~galk/teaching/sadna/Map-or-Localization/umbmark.pdf

    Basically the encoder pulse setting number will depend on the wheel diameter, resolution of the encoder (number of counts per turn) and gear ratio between the encoder and the wheel.

    You can also use the encoder pulses for making your robot going straight or turning in precise angles.
    References :

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