The Voice Operated and Wirelessly Controlled Elevator Jeremy Hester Advisor: Mohammad Saadeh Class: ET 493 – 01 Class Professor: Dr. Cris Koutsougeras May 10, 2013 Senior Design I Spring 2013 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 Frame 3

Frame: Current Progress 4

The System 5

System Logic 6 Start System at Rest Enter Voice Command Transmitter Sends out Desired signal Start System at Rest System Receives Signal Is Signal greater or less than current floor Yes No Move Room Up the Necessary Predetermined / Calculated Rotations Move Room Down the Necessary Predetermined / Calculated Rotations Room Stops at Sensor Detected Floor Door Opens and Closes Voice Transmitter Device Elevator Receiver Moves to Home Position

Major Components The System ◦Two Arduino Uno Boards ◦Two XBee Wireless Modules ◦Easy VR Module and Microphone The Model ◦The Frame ◦The Room ◦Multiple Roller Lever Switches ◦One Geared DC Motor with Encoder 7

The Arduino Uno Board X2 8 One Transmitter One Receiver

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

The Easy VR Module and Microphone 10

The Motor 11 GM9236C534 – R2 G30A Planetary Gearbox Incremental Optical Encoder

Immediate Challenges Determining the exact number of signals received by the motor encoder on different PWM’s 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 a 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. Building a room that is both heavy enough to keep the cable taught, but also light enough to keep the motor running smoothly, without pulling the room back downwards upon ceasing its rotation. 12

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