Transcript TUV-ADDS Tactical Up-armored Vehicle – Automatic Distress

CDR for:
TUV-ADDS
Tactical Up-armored Vehicle – Automatic
Distress Detection System
GROUP 5
Julien Mansier – Eric Nachtigal – Jason Skopek – Alyssa Almanza
TUV-ADDS OVERVIEW
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TUV-ADDS is a system that is intended to be
able to detect if a vehicle has been in a
specific distress event resulting in the need
for assistance.
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similar to civilian system OnStar©
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Recognition of certain characteristics of a
distress-causing event.
U.S. Marines MRAP; example of an up-armored wheeled tactical vehicle
(Permission from Sgt. Irizarry, Eduardo)
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automatically communicate that there is a vehicle in need and the position of the
vehicle.
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relative to up-armored, but not heavy armored, wheeled tactical vehicles
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two specific distress instances: rollover and significant Improvised Explosive Device (IED)
hits
MOTIVATION
U.S. Marines LVSR
(Permission from Sgt. Irizarry, Eduardo)
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General Interest
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Interest in pursuing a defense related project
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Assistance to the men and women in
uniform, who deal with these real life
situations on a daily basis
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Many of the teammates having ties by either
family members or close friends that are in
the military
GOVERNMENT RELEVENCE
• TUV-ADDS is not intended to be a military grade system.
• No access to genuine Government equipment nor the budget to
create a system that would meet military grade standards.
• Geared our project towards prototyping a solution for the
Department of Defense.
• Research of military vehicles and the difficulties that the military
has with some of their vehicles was performed.
• Great measures taken to make TUV-ADDS a system that military
personnel could relate to.
SPECIFICATIONS
• GPS accuracy 2-5 meters
• Wireless range of 1Km minimum
• Ability to store at least 30 minutes of relevant
sensor data
• Sensor sample rate of 1 ksps
• MCU operational frequency 8MHz minimum
• Sensor G-Shock rating above 40 g’s
• Communications BUS speed above 50 Kbps
IDENTIFYING IED HITS:
• The system will sense and monitor certain characteristics using a network
of sensors to identify an IED hit.
• These characteristics include:
– Change in position displacement
– Change in ambient light (flash)
– Change in ambient temperature (heat)
• These system will collect the data, which the system will analyze and
conclude whether the information combined is an indication of a
distressed vehicle.
• Important for TUV-ADDS to identify these situations accurately.
IDENTIFYING ROLLOVER
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For rollover indication, a gyroscope will be used to sense if the vehicle is
overturned for a prolonged period of time.
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These sensors will collect the data, which then the system will analyze and
conclude whether the information combined is an indication of a distressed
vehicle.
U.S. Marines LVSR; example of a vehicle rollover
(Permission from Sgt. Irizarry, Eduardo)
U.S. Marines MRAP; example of vehicle rollover
(Permission from Sgt. Irizarry, Eduardo)
HARDWARE BLOCK/ WORK BREAKDOWN DIAGRAM
SENSOR OVERVIEW
ACCELEROMETER
Parameter
BMA220
Axes
3
Scalable sensitivity
±2 to ±16g’s
Output
Digital: SPI or I2C
Low power
250µA * 1.8v =0.45mW
Cost
$3.09/Sensor
TEMPERATURE IC
Parameter
TMP100
High speed
operation
3.4MHz
Output
Digital: I2C
Scalable
Sensitivity
Resolution vs. Time
Cost
$0.00 (Sampled)
PHOTODIODE
Parameter
TSL14S-LF
Wave length
320nm to 1050nm
Output
Analog, Irradiance to Voltage
Output pulse
2.6µs (10% to 90%)Rise
Cost
$1.26/Sensor
SENSOR PCB
Parameter
Sensor Module
Size
1.2 X 1.3 Inches
Sensors:
Accel., Temp, Light
Connector
Inverted D-sub
SENSOR MCU
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Power and monitor the sensors
Communicate with the Main
Processor
Detect characteristics of an event
Store data from suspected events
Forward suspected events data to
main processor
MICROCONTROLLER REQUIREMENTS
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1 External interrupt
1 ADC
Large open source community
Supports CAN bus
SPI, I2C
MICROCONTROLLER
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Atmel Atmega328P controlled via
Arduino bootloader
16 MHz clock speed
SPI and I2C USART capability
15 Ksps 10bit ADC
32 Kbytes flash memory
1.8-5.5V operating range
28 pin P-dip package
2 External Interrupts
8 bit RISC architecture
CAN COMMUNICATIONS
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Controller Area Network
Message based protocol
High noise immunity
Defines most of the transmission and physical layer
MilCAN is one example of the application layer
Basic message format is called a frame
MCP2515
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SPI based CAN controller
16Mhz
Operates at 5V
18pin PDIP package
Software library available for
Atmega328 compatibility
Handles message faults without
Atmega intervention
Requires MCP2551 CAN transceiver
to meet physical layer CAN
requirements
STORAGE
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MicroSD Card
1 GB storage
SPI communications
FAT16 File-system
64 bit storage variable
1GB/64bits = 134,217,728 Measurements
SCHEMATIC
SOFTWARE
POWER SYSYTEM
POWER
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Vehicle contains 6v, 12Ah battery
All power for the TUV-ADDS
system will be drawn from this
source
LM2940CS-5 used for 5v
regulation
LM1117T-1.8 used for 1.8v
regulation
LM1117T-3.3 used for 3.3v
regulation
POWER SYSYTEMS
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4.8-5.2v output
1A max current
0.7v max dropout
v output
A max current
v max dropout
HARDWARE BLOCK/ WORK BREAKDOWN DIAGRAM
MAIN CONTROL UNIT
Specifications
TI Sellaris ARM
Atmel ATmega
Frequency
50 – 80 MHz
16 MHz
Flash Memory
256 Kbytes
256 Kbytes
Interrupts
28 – 48
8
USART Ports
2
4
CAN Ports
3
0
I/O Pins
46
54
Voltage Supply
3.3V
5.5V
WIRELESS COMMUNICATION
Parameter
Xbee – PRO
Indoor Range
300 feet
Outdoor Range
1 mile
Transmit Power
63 mW
Serial Baud
1200bps – 250 Kbps
Supply Voltage
2.8 – 3.4 V
GPS
Parameter
Falcom FSA03
Channels
50
Accuracy
~ 1.5 – 2.5 m
Cold Start
29 sec
Hot Start
< 1 sec
CPU
ARM7 with 384 Kb ROM
Supply Voltage
3.3 – 5 V
GYROSCOPE
Parameter
ITG-3200
Axes
3
Signal Filtering
Built in LPF
Stand-by Current
5µA
Communication
Fast Mode I2C (400KHz)
Shock Tolerance
10,000g
Features
Built in Temp Sensor
Supply Voltage
2.1 – 3.6V
SOFTWARE BLOCK DIAGRAM
MAIN CONTROL SOFTWARE FLOW
TESTING
• Three levels of testing for functionality:
• Component level
• Module level
• System level
• Software module tested differently than hardware modules
• Test to ensure no false alarms
• Detailed Test Event Plan
• Hummer Power Wheels vehicle was chosen for the most
accuracy in testing that is plausible for the team
• Wii Nunchuck breakout adapter will be installed to drive
the Power Wheels
• Create distress characteristics on the vehicle to test the
system functionality
• Correct functionality will be a result of a combination of
characteristics that will indicate a distressed vehicle
PROGRESS TO DATE
MILESTONE CHART
BUDGET
• Currently under budget
• Team funded, no sponsors
• Total spent to date: $276
CURRENT EXPENDITURES
ITEM (quantity)
PRICE
Power Wheels
$50
Xbee Pro (2)
$75
Temp Sensors (10)
FREE
Accelerometers (6)
$19
Photodiodes (8)
$10
FTDI Cable
$20
Relays (3)
$6
Atmel328 (3)
$13
16MHz Crystals (8)
$8
Flash Memory
$10
GPS
$45
CAN Module
FREE
Sensor PCB Fabrication
($20)
TOTAL:
$276
Budget
Low
High
Average
Low Part
Metal
Frame
High Part
Vehicle
Power
Control
Systems
30
350
180
10
25
15
Jameco
3
SparkFun
Atmel
ATMega
Atmel
ATMega
328P-PU
TAOS
TSL145
Bosch
Sensortec
BMA220
TMP03FS
Z Analog
Devices
Venus w/
SMA
connect
Ford 150
Window
Motor
Panasonic
Corp
CPU
17
50
25
Sensor MCU
4
6
5
Photodiode
1.26
3.08
2
Acceleromet
er
3.09
53.16
9
Temperature
Sensor
0
3.5
3.5
GPS
50
90
55
70
10
17
70
65
XBee
7.53
25
17
XBee Pro
Atmel
ATMega
328P-PU
112
340
150
100.2771
404.1471
363.9042
178.035
1466.6442 717.535
Window
Motor
8
Engine
Switch
0.99
Main
Communicati
on (one end) 60
Gyroscope
PCB
Fabrication
33% Misc.
Expenses
Total
L3G4200
DTR
ExpressP
CB Student
Program
Powerwheels
TI Stellaris
Atmel
ATMega
TAOS
TSL145
ADIS16240A
BCZ
TMP03FSZ
Analog
Devices
GS407
Helical
BMW 325XI
Right window
Motor
Tyco
ExpressPCB
PROBLEMS
• Surface mounting the smallest components
• Communications issues between modules
• Filtering False Alarms
QUESTIONS?
U.S. Marines MRAP with mine roller
(Permission from Sgt. Irizarry, Eduardo)