The Voice Operated and
Wirelessly Controlled
Elevator
Jeremy Hester
Advisor: Mohammad Saadeh
Class: ET 493 – 01
Instructor: Dr. Cris Koutsougeras
South Eastern University
Computer Engineering Technology
1
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.

The Purpose and the Idea:
2
Major Components

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
3
The Frame
4
Frame: Current Progress
5
The System
Transmitter Side
Receiver Side
Start
Start
Voice
Transmitter
Device
Moves to
Home Position
System at
Rest
Elevator
Receiver
System at
Rest
Enter Voice
Command
System
Receives Signal
Transmitter
Sends out
Desired signal
Yes
Move Room Up
the Necessary
Predetermined /
Calculated
Rotations
System Logic
Is Signal
greater or
less than
current floor
Room Stops at
Sensor Detected
Floor
Door Opens and
Closes
No
Move Room
Down the
Necessary
Predetermined
/ Calculated
Rotations
7
One Receiver
One Transmitter
The Arduino Uno Board X2
8
XBee Wireless Modules
XBee Series
1 Wireless
Module
XBee
Explorer
Mount
Arduino XBee
Specific Wireless
Shield
9
The Easy VR Module and
Microphone
10
GM9236C534 – R2
Incremental
Optical
Encoder
G30A Planetary
Gearbox
Voltage: Up to 30.3 VDC
Gear Ratio 5.9:1
The Motor
11
Incremental
Optical Encoder
12
Motor Test Program
13
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.
14
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.
15
Timeline












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
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