Group 7 Jason Dumbaugh Artiom Bell Koltan Riley II KIFT Knight Industries Five Thousand UCF SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE To build a fun working Senior Design project that wont break the bank ID: 539177
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Critical Design ReviewGroup 7Jason DumbaughArtiom BellKoltan Riley II
KIFTKnight Industries Five Thousand
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide2
To build a fun, working Senior Design project that won’t break the bank.To introduce a project that is useful to the military, as well as other government agencies.To introduce a product that the everyday consumer will be able to use.To learn the dynamics of as many electrical components as possible (Bluetooth, GPS, Microcontroller programming, sensors)Project Objectives
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide3
Knight Rider’s K.I.T.T. had:Turbo Boost – allowed KITT to reach speeds in excess of 200 MPHPursuit Mode – high-speed driving mode where KITT was in control of the carInfrared Tracking Scope – allowed KITT to sense objects within 10 milesFlame Thrower
– Two flame throwers were located on KITT’s bumperInspiration
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide4
KIFT will have:A regular RC car motor, no 200 MPH speeds here.Pursuit Mode – KIFT will be able to drive itself using GPS waypoints for guidance.Tracking Scope – KIFT will be able to sense dangerous walls and other objects and maneuver around them.Remotely controlled through a Bluetooth controller.
NO Flame throwers, they would melt KIFT.
Key Design Objectives
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SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide5
Block Diagram
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Bluetooth Controller
Bluetooth Module
Microcontroller
GPS
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Drive TrainSlide6
Playstation3 SIXAXISBluetooth CapabilitiesThe Range of Motion within 30 ft.SIXAXIS™ TechnologyBattery Life ( 30 Hrs.)Rechargeable (USB Charger)High amount of input buttons
Bluetooth Controller
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide7
Hitari K.I.T.T. Replica of vehicle in Knight RiderCost Efficient for a RC Vehicle ($65 USD)K.I.T.T. comes full assembledFull assembly becomes difficult for modification in being able to manipulate the equipped circuit cards.Chassis Selection
UCF
SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide8
Evaderrelatively similar in size compared to K.I.T.T.Reasonable cost for a Hobby RC Vehicle ($100 USD) Due to the minimal use of Circuit cards used in the Evader, our necessary modifications can be easily made to the vehicle.Ample space for our equipment.
Chassis Selection
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SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide9
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
LPC214860MIPs ARM processor with 512k flashRuns with simple robust protocol on UART, SPI, I2CAll FAT, USB, and peripherals are accessible from Java Programs
USB deviceAll I/O pins are 5 V tolerantEnumerates as a USB mass storage
Microcontroller SelectionSlide10
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Uberboard
Socket for EM-408 SiRF III GPS receiver
Socket for BlueSMiRF short range RF modemSocket for micro SD card (up to 2GB)
Microcontroller Dev BoardSlide11
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
ALFATxpCan be easily used with any microcontroller including PIC, AVR2 Serial PortsMore prototyping room
Supports MultiMedia Card (MMC) and Secure DigitalAll features of the UberboardJava Virtual Machine
Unoccupied I/Os
Microcontroller Dev BoardSlide12
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
EM-408SiRF III Chipset20-Channel ReceiverExtremely high sensitivity : -159dBm
10m Positional Accuracy / 5m with WAASHot Start : 8s / Warm Start : 38s / Cold Start : 42s75mA at 3.3V
20gram weightOutputs NMEA 0183 and SiRF binary protocol
GPS SelectionSlide13
STMicroelectronics GS-BT2416C1DBOnboard USB port for easy programmingIntegrated AntennaClass 1: ~100m rangeUSB, UART, PCM, SPILow Power ConsumptionCheap ~$50
One Problem… no HID profile!Bluetooth Chip Selection
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SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide14
Bluegiga WT32HID (Human Interface Device) profile and many othersBluetooth 2.1 compliantIntegrated AntennaClass 2: ~30m rangeUSB, UART, PCM, SPILow Power ConsumptionCheap ~$50
Bluetooth Chip Selection
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SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide15
Devantech SRF05TTL Interface (0 and 1)Min range: 3cm radialMax range: 4m radial40kHz frequencyEasy to manipulateModerately priced ~$30 eachNeed 4 sensors
Sonar Sensor Selection
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SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide16
Power Supply
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Primary
: Duratrax Starter Battery Pack require for the EVADER.
Secondary:
designed to power the other electrical components of the vehicle
(GPS, Bluetooth, Sensors, Microcontroller)
Voltage Regulator
-LM7805 capable of maintaining output voltage between 5V-18V. LM317T capable of maintaining 1.2V-37VSlide17
Primary Power Supply
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Duratrax Starter Box Power Pak DTXP4600
Consists: AC wall Charger, 2 1500mAh 7.2V 6 cell flat battery (Ni-Cd) packs .Charger:
Capable of fully recharging the battery pack in a 2-3 hour time frame.
Inexpensive ~$40Slide18
Secondary Power Supply
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Source: 9V Battery
Capable of providing the necessary constant voltages to the electrical components.
Constant Voltages to output 5V (LM7805) 3.3 V (LM 371T).Slide19
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Wiring of the WT- 32Slide20
Other Interfacing Aspects
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
GPSWill be connected to the ALFATxp via UART 1
Bluetooth Will be connected to the ALFATxp via UART 2 multiplexed with UART 1Propulsion
The LPC will send out a PWM signal through two I2C ports for Left/Right and Forward/Reverse controls
Sensors
5 GPIO ports will be used for sensors
The outbound V+ will be shared but each sensor will have an individual return line
Storage
The GPS waypoints will be saved on the SD card which will function as the unit’s Hard DriveSlide21
Testing
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Stage 1Bluetooth LED Test
Movement Control Test using direct input from PC (No Bluetooth)Stage 2 Use Bluetooth to operate motion controls
GPS Coordinate Storage Test
Sensor Stopping Tests
Stage 3
Waypoint finding test
Object Avoidance Algorithm Implementation
Integration of Object Avoidance and Waypoint findingSlide22
Projected Timeline
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
September: Manually pair onboard vehicle Bluetooth module with PS3 Controller.
Early October: Use PS3 Controller to drive KIFT and ensure proper button mapping and kill switches.Late October: Trim GPS streams and ensure they’re properly saved into KIFT’s memory.
Early November:
Program sensor data and produce object avoidance algorithm.
Mid-November:
Incorporate object avoidance algorithms with Pursuit Mode.
Late November:
Acquire final circuit board and install components. Final testing.Slide23
Kift’s finances
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCESlide24
Project Completion %
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Design- 80%Parts Acquisition-80%
Programming-20%Bluetooth communication-25%GPS Communication-0%Object Avoidance-0%
Prototyping-30%
Testing-0%
Documentation-70%
Overall-35%Slide25
Image Permissions
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
The images in today’s presentation were reproduced with permission from:
Hitari, Inc.Sparkfun ElectronicsAcronameSTMicroelectronicsSlide26
Questions?
UCFSCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
KITT at CES 2009 in Las Vegas