Archimedes

EE 296

Tha X-Roaderz

PRESENTS:

Archimedes

Tha X-Roaderz

KEVIN – Website / Lap Counter / Crossing Gate

AMY – Sensors / Lights / Sounds

TIO – Speed Controller / Crossing Gate / Sound / PPTs

MOUSSA – Speed Controller / Track Switching

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Overview of the Project

The overview of the project is to design a train set with respective train stations so that it can be utilized by those with special needs / disabilities.

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Block Diagram

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User Interface

Flex Sensor >>

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Flex Sensor: 411

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Setup

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PICAXE Processors

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PICAXE

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PICAXE Schematics

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H-BridgeT

ruth

Tab

le

H-BRIDGE

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Lap Counter4026B (7-Segment)

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Track Switching

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Sensors

The sensors indicate the location of the train and will be needed for:•Crossing gate•Lights•Track switching

The sensor starts off with a reed switch that will close when it senses a field from an external magnet.

Magnets will be attached to the bottom of all the train’s cars.

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CK

IN

OUT

S0

0

S2

1

S1

1

S3

1

0

1

1

0

1

0

0

1

State Diagram

x=0 x=1

AB A+B+ A+B+ z

S0 00 00 01 0

S1 01 10 01 1

S2 10 11 01 1

S3 11 00 01 1

Next State Table

JA=BX’KA=B+X

JB=A+XKB=X’

The reed switch is connected to the JK flip flops which is then connected to the picaxe.

Equations:Z=A+B

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Potential Problems

• May be designed to accommodate a limited few

• Lack of Experience / Skill levels regarding project at hand

• Time Management / Team Availability

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Time-Line

• 21 Jan 06 – Basic Electronic Tutorial

• 28 Jan 06 – Solder Technique Tutorial

• 20 Mar 06 – Completion of Sensors / Controllers

• 08 Apr 06 – Lights / Interfacing Completion

• 10 Apr 06 – Project Completion

• 01 May 06 – Aesthetics Completion

• 4/5 May 06 – GAME DAY

Archimedes THE END

THA X-ROADERZ!

MOUSSATIO

AMY KEVIN

http://www2.hawaii.edu/~kahing/

Roaderz’ Website:

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QUESTIONS ... ?

... anyone ?!

THA X-ROADERZ