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Kraig Class Class Kraig 101 101

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KRAIG PAPER DISCUSSION 7th August 2011

Revision         

Parts Of A Mobile Robot Basic Electronic Components Locomotion System Rectifier Circuit DC Motor H Bridge Sensor Interfacing Line Following Duty Cycles

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Locomotion System 

As the name suggests a mobile robot must have a system to make it move This system gives our machine the ability to move forward, backward and take turns It may also provide for climbing up and down

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Driving Mechanisms       

Differential Drive Skid Steer Drive Car type – Drive Articulated Drive Synchronous Drive Pivot Drive Dual Differential Drive

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What you should know

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DC Motor Direction Control 

H – Bridge Circuit Diagram VCC

S1 S3

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S2 1

M

2

S4

H – Bridge Working

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Sensors   

Analogous to human sensory organs Eyes, ears, nose, tongue, skin Sensors help the robot knowing its surroundings better Improves its actions and decision making ability Provides feedback control

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LDR - Light Dependent Resistor 

Made of cadmium sulphide Resistance between two terminals vary depending on the intensity of light Can be used to differentiate contrast colours

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Comparator

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Sensor Interfacing



Light Sensing Module using LED-LDR combination www.robotix.in

Bump Detector Module

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LM339 Pin Diagram

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THANK YOU


KRAIG 101