Transcript Overview of Project

Watch Your Back!
Team BAKE
Bryan Schoen
Ashish Bablani
Kelby Penney
Evan Schurr
Overview of Presentation
1. Project Description
2. Project Design
3. Proposed Additional Features
4. Timeline / Labor Distribution
5. Cost / Risk
Introduction and Purpose
• Watch Your Back! is a wirelessly controlled
amphibious vehicle armed with a camera with
abilities to perform a wide variety of human tasks
– Ability to transport items from one room to another
– Can be used to enter hazardous situations, analyze
the situation and risks, and perform necessary actions
– Eliminates threats to human lives in a battlefield when
equipped with a gun
– Home/Business Security
– Recreational
Objectives
• Eliminate threats to human life
– Will equip the amphibious vehicle with a
paintball gun and camera
– Will be able to control from a remote location
• Have ability to maneuver and fire from remote
location
– View all data and react in real time
Description
• Wireless amphibious vehicle equipped with a
camera and paintball gun
• Sensors may include: motion, video, audio and
light
• Vehicle can be controlled by 802.11B
communication
• The data will be transferred back wirelessly to a
computer with a controller (keyboard or PS2
controller)
• Data can be viewed and controlled in real time
by a user interface
Mechanical Aspects
• Pre-assembled Metal
Mobile Platform
• Two 8 Inch Wheels
• Two 2 Inch Stabilizing
Wheels
• Vertical motion Gear
DC Motors/Gun Trigger
• Two 9FGHD Ferrite
Series ServoDisc Motors
• 0.9 Deg/Step Stepper
Motor
• Push Type Tubular
Solenoid
PWM Controlled Motor Drives
• Two DC/DC Converters
with PWM Input
• Input Voltage 12V
• Output Voltage 0-15 V
• Inverter Switch for
Reverse Control
M68HC11K1
Microcontroller
•
•
•
•
4 MHz Clock
16-bit addressing
84-pin PLCC Package
Four 8-bit pulse-width
modulation (PWM) outputs
• Enhanced asynchronous serial
communications interface
(SCI)
•
M68HC11K 84-Pin PLCCC
Dual-function I/O lines — Any pins
used for the microcontroller’s
peripheral functions can be
configured as general-purpose I/O
lines
Memory
• RAM
– 64 Mb SDRAM
• ROM
– 64 Mb
• 44 Pin - CPLD
– Used to store data
Wireless, Camera & Controller
• 802.11g wireless
control
• VGA (640x480)
quality wireless
camera with
integrated audio
• Sony Playstation
controller for
horizontal/vertical
movement and trigger
controls
Mandatory/Extra Features
•
•
•
•
•
•
•
Mandatory Features
360 degree horizontal movement
Vertical movement of gun
Trigger control
Integrated wireless control & video
Extra Features
Valentine’s Day Massacre (VDM) button
Audio output
Various sensors (wall, drop-off, etc.)
Possible Problems & Risks
• TIMING!
• Recoil of gun & stability
• Weight/friction & current limiting the DC
motors
• Smooth rotational movement of the motors
• Exceeding the motor specifications
Hardware Implementation
44 pin
CPLD
Wireless
Web-Cam
Wireless
transmission
Serial
RS-232
Motorola
68HC11K1
Micro-Processor
Control signal
Driver for
trigger
Paintball gun
- trigger
Rom
Ram
Computer
DC Motor Drivers
2 DC Servo Disc Motors
1 Stepper
Motor
Estimated Costs
Price
# Units
Total
9FGHD Ferrite
Series Servo Disc
Motor (x2)
$704.00
2
$1,408.00
68HC11K1
Microcontroller (x2)
$20.00
2
$40.00
12V Car Battery
$100.00
1
$100.00
LinkSys PTZ Internet
Camera
$255.00
1
$255.00
Paintball Gun
$200.00
1
$200.00
Misc (Resistors,
Caps, Inductors,
Inductor cores, heat
sinks, etc)
$100.00
1
$100.00
Stepper Motor
$140.00
1
$140.00
PS2 Controller
$20.00
1
$20.00
Gear System Parts
$50.00
1
$50.00
RAM and ROM
$100.00
1
$100.00
Gun supplies (Ammo,
CO2, etc)
$50
1
$50.00
Total
$2,463.00
Work Distribution
Ashish
•Documentation
•Programming the
HC11K1 to control
the DC motor
drivers
•Designing and
implementing
trigger driver for
paintball gun
Kelby / Evan
•Documentation
•Designing and
implementing DC/DC
motor drivers
•Designing and
implementing stepper
motor drivers
•Designing a gear
system for the stepper
motor
Brian
•Documentation
•Setting up the
web cam
•Programming the
HC11K1 to control
the DC motor
drivers
•Designing and
implementing
trigger driver for
paintball gun
Gantt Chart
References
• "Freescale Semiconductor." M68HC11K
Family Technical Data HCMOS M68HC11K
Family. 2001. Motorola, Inc.. 12 Sep 2006
<http://www.freescale.com/files/microcontroll
ers/doc/data_sheet/M68HC11K.pdf>.
Questions? / Comments ?