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

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. 2

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 Major Components

The Frame 4

Frame: Current Progress 5

6 The System Transmitter Side Receiver Side

System Logic 7 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

The Arduino Uno Board X2 8 One Transmitter One Receiver

9 XBee Explorer Mount XBee Series 1 Wireless Module Arduino XBee Specific Wireless Shield XBee Wireless Modules

The Easy VR Module and Microphone 10

The Motor 11 GM9236C534 – R2 G30A Planetary Gearbox Incremental Optical Encoder Voltage: Up to 30.3 VDC Gear Ratio 5.9:1

Optical Encoder 12 Incremental

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

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 16 APRIL 13MAY 13JUNE 13JULY 13AUG 13SEPT 13OCT 13NOV 13 Wireless, EasyVR, Gear motor selection Integrating individual components into the frame Final testing and tuning of the systemTimeline