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The Voice Operated and Wirelessly Controlled

ElevatorJeremy Hester

Advisor: Mohammad Saadeh

Class: ET 493 – 01

Instructor: Dr. Cris Koutsougeras

South Eastern UniversityComputer Engineering Technology

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The Purpose and the Idea:

Purpose: To build an elevator can accept voice commands wirelessly.

The Idea: To make the usage of an everyday elevator more accommodating in especially cramped situations and less of an ordeal in humility for those physically handicapped.

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The System◦ Two Microcontroller Boards◦ Two Wireless Modules◦ A Voice Recognition Module and Microphone

The Model◦A Frame◦A Room◦Floor Detection Sensors◦One Geared DC Motor with Encoder

Major Components

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The Frame

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Frame: Current Progress

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The System

Transmitter Side Receiver Side

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System Logic

Start

System at Rest

Enter Voice Command

Transmitter Sends out

Desired signal

Start

System at Rest

Room Stops at Sensor Detected

Floor

Door Opens and Closes

Voice Transmitter

Device

Elevator Receiver

Move Room Up the Necessary

Predetermined / Calculated Rotations

Yes No

Move Room Down the Necessary

Predetermined / Calculated Rotations

Moves to Home Position

Is Signal greater or less than

current floor

System Receives Signal

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The Arduino Uno Board X2

One Transmitter

One Receiver

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XBee Explorer Mount

XBee Series 1 Wireless

ModuleArduino XBee

Specific Wireless Shield

XBee Wireless Modules

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The Easy VR Module and Microphone

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The Motor

GM9236C534 – R2

G30A Planetary Gearbox

Incremental Optical Encoder

Voltage: Up to 30.3 VDCGear Ratio 5.9:1

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Optical Encoder

Incremental

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Motor Test Program

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Immediate Challenges

Determining the exact number of signals received by the motor encoder on different PWM values that would cause the geared motor to spin a full rotation.

Configuring various test programs to calculate and test for acceleration and deceleration distances and times.

Calculating how much torque is required to be able to both move the room up and down, and hold it at fixed position.

Determining how many geared rotations it will take to go from one floor to another from different locations.

Calibrating the system on start up by designating a home position that the system can find automatically.

Building a room of an adequate weight to keep the cable tensioned and the motor running smoothly.

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Deliverables Build the model (i.e. the Frame and the Room)

Integrate individual systems and modules to build the prototype.

Ensure individual systems can communicate with each others flawlessly.

April 13: Testing of XBee modules: Completed April 20: Construction of Frame: Completed April 21: Gear Motor Selection: Completed April 27: Complete Gear Motor Selection and Begin Testing: Completed May 03 : Testing and Configuring The Easy VR modules: Completed May 08 : Make Adjustments to Final Proposal Draft and Presentation: Completed May 10 : Final Proposal and Presentation: Completed May 20 : Testing of Easy VR modules June 01: Construction of the Room June 10: Door Motor Selection and Testing June 20: Integration of Individual Components June 30: Testing of the System

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APRIL 13 MAY 13 JUNE 13 JULY 13 AUG 13 SEPT 13 OCT 13 NOV 13

Wireless, EasyVR, Gear motor selection

Integrating individual components into the frame

Final testing and tuning of the system

Timeline