Remote Control of an ATV using a myRIO and iPad

Report
Remote Control of an ATV
Team members:
Bryce Aberg
Eduardo Barcellos
Faculty:
Stacy Wilson
Ron Rizzo
Background Information
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Originally developed by WKU’s Engineering Manufacturing
Commercialization Center (EMCC)
Used as a mobile platform to detect subsurface voids
Applications include: Sinkhole detection, tunnel/bunker detection
Project Objectives
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Remote control of the steering, throttle, choke, brakes, start/stop
of an ATV
Communicate through WiFi to a myRIO that will control these
systems by using shared variables.
Block Diagram
Haydon Motor Controller (Throttle, Choke)
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Step-motors need a driver
Clipper has internal and external control
Stepper-motors can be controlled by sending a clock signal
(10Hz – 2KHz) from the myRIO to the Clipper
Inputs on the Clipper for direction, clock, motor enable
Sabertooth 2x25 (Steering)
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Linak actuator controls steering, requires 20A
Sabertooth 2x25 motor controller can control up to two 25A motors.
Two control options: Serial and analog on S1 and S2
For analog:
<2.5V on S1: Backwards
=2.5V on S1: No movement
>2.5V on S1: Forwards
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Relays (Brakes, start/stop)
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Zettler relays used to control solenoid actuator
Solenoid is connected to thick wire to control brakes
Another relay controls the engines ignition
myRIO Pinout
Current Front Panel
Shared Variables
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Variables that can be shared between programs or across a network
Several types, this project will be using network-published
shared variables
Can be changed using an app on the iPad (Data Dashboard)
Current Status
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We have almost all the basic functions complete
All motors and relays can be controlled through LabView
No wireless connectivity
Wiring system is a mess
Future Goals
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Update code to use event handling
Implement shared variables in LabView
Design board that will connect to myRIO to replace the stock board
Streamline the wiring on the ATV

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