1. Tracking Camera Platform
Design Review Presentation
October 14, 2004

2. Introduction
Marty

3. Today’s Presentation Who we are What we are doing
Where will it be used
When will it be completed
How are we going to do it

4. Our Team
Martin Roeder
Team Leader
Software Design
Image Processing

5. Our Team David Recktenwald Mechanical Systems Package Construction
Website Manager

6. Our Team Mirko Acamovich Component Selection Power Supply Design
PCB Design

7. Our Team
Ananth Mohan
Interfacing
Frame Capture
Image Processing

8. Overview What is it? What does it do?
Camera platform with pan and tilt motion
What does it do?
Detects foreign objects using IR images
Adjusts platform to track objects
Has manual override control using a joystick
Sends start/stop VCR signals

9. Overview Where will it be used? When is it going to be done?
Medium level security for indoor surveillance
When is it going to be done?
10/21/04 - PCB
11/23/04 - Final Build
12/07/04 - Final Presentation
How are we going to do this?
Very Carefully

11. Component Selection Rationale
Mirko

12. Component Selection Rationale
Microcontroller
Infrared Camera
Image Grabber
Servo Motors

13. Microcontroller Microcontroller RCM 2300 RCM 3000 RCM 3100
Image Processing
(sufficient memory)
128k SRAM
256k Flash
512k SRAM
512k Flash
Size footprint
1.60” x 1.15”
2.73" × 1.85"
1.85” x 1.65”
Price
$42.00
$79.00
$65.00

14. Infrared Camera LEEBWCMOS 292901 LEE712ANL LEE162AAL Size
29 x 29 x 28 mm ?
43 x 40 x 85 mm
Resolution
510(H) x 492(V)
512(H) x 492(V)
Illumination
F1.2
Output
Composite Video
Price
$26.00
$59.00
$29.00

15. Image Grabber Imaging Hardware P86964 PixelSmart 512-8
Digital Creations uCFG
Interface with PCB ?
Yes
Image Sizes Available
Max: 768x576
Min: ?
NTSC: ?
Max: 512x480
NTSC: Yes
Max: 740x240
Min: 45x15
Documentation
None
None online, must purchase
Yes, with Live Support
Price
$95.00
$299.00
$229.00

16. Servo Motors Options CS - 12 CS - 55 CS - 59 Torque 35 oz/in
Size
1.2”x0.5”x1.1”
0.62 oz
1.6”x1.4”x0.8”
1.60 oz
1.7”x0.9”x1.0”
1.24 oz
Price
$19.99
$12.99
$24.99

17. Packaging Design
Dave

18. Packaging Design Packaging must be sturdy, yet simple
Camera consists of six major physical components to deal with:
Servo Motors (2)
Camera
Video Capture Card
Rabbit Microcontroller
Power Supply

19. Packaging Design Packaging will be split into two separate pieces
Camera Mount: a thin mount made up of aluminum brackets holding the two servo motors and camera
Circuit Box: a small aluminum box that will hold the printed circuit board (which will contain the microcontroller, video capture card, and power supply)
This allows the camera portion to be small and lightweight, which is preferable in

20. Camera Mount Made of 0.25” thickness sheet aluminum
Two brackets for handling of pan/tilt movement
Bottom bracket will be mounted to pan motor and will hold tilt motor
Top bracket will be mounted to tilt motor and will hold infrared camera

22. Circuit Box Made of 0.25” thickness sheet aluminum
Will be just larger than printed circuit board
Holes will be drilled in bottom for brass standoff screws
Heat dissipation should not be an issue due to usage of aluminum.

24. Schematic
Ananth

25. Schematic on overhead

26. Camera B&W CCD Camera 4 Rear Connections
1/3” CCD Sensor, 420 TVL Resolution
4 Rear Connections
12V DC
GND
Video Out
Audio Out
RCA cable to uCFG Image Capture Board via PCB
Provides NTSC continuous video feed to uCFG
RCA cable directly to VCR/TV for live/recorded audio

27. uCFG Image Capture Video In from Camera Power (5V), GND etc. from PCB
NTSC composite analog video channel (only using 1 of 4)
Power (5V), GND etc. from PCB
LVTTL serial UART interface with Rabbit via PCB
UART RXD input line (LVTTL +3.3V)
UART TXD output line (LVTTL +3.3V)
Trigger Input for Frame Capture from Rabbit via PCB
LVTTL +3.3V
Composite Analog Video Out to TV for Live Viewing
Image Transfer via Serial UART
115.2 kbps transfer rate
~3 frames/sec desired  3840 byte image size (64X60)
Low Resolution sufficient for image processing requirements
B&W (Y Luma) transfer only

28. Rabbit 3100 Rabbit 3000 micro at 29.4 MHz, +3.3V
Receives still image frames from uCFG on serial UART lines (Serial Port D)
~3 frames/sec, kbps, ~4 KB/frame
Sufficient RAM (500KB) to store still frames – ‘before’, ‘after’, subtraction image, initialization image
Drives servo motors via PWM lines (Port E)
Drives Infra-Red Transmitter to signal VCR via Serial Port C
Joystick Interface via Port B, E to DB15 Connector

29. Servo Motors Joystick Infrared Transmitter Driven by Rabbit Port E
5V and GND connections to PCB
Driven by Port E (PWM) from Rabbit
Control Platform Motion
Joystick
Connected via DB15 connector to Rabbit (Ports B, E)
Joystick uses 8 pins
Used for manual override, System Control
Infrared Transmitter
Driven by Rabbit Port E
Signals VCR Recording

30. Infrared Interfacing 38 - 40 kHz carrier signal
Information signal from microcontroller
Depending on format of receiver, tie the two signals to an AND or NAND gate.
Output of gate goes to LED.
Only two functions needed:
Record, Stop.

31. Questions?