cellular-enabled remote camera system. team members damion cuevas power systems sensors research...
TRANSCRIPT
Cellular-Enabled Remote Camera System
Team Members
Damion Cuevas
Power Systems
Sensors
Research
Josh Lunn
Hardware interfacing
Web page design
Research
Tyler Poschel
Team Leader
Hardware interfacing
Research
Justin Harmond
Power Systems
Sensors
Research
Overview
I. Problem
II. Solution
III. Packaging
IV. Testing
V. Bill Of Materials
VI. Questions
I. Problem
What is the problem?
Current remote surveillance systems use limited resolution cameras, while high-resolution surveillance systems do not have remote transfer.
II. Solution
What is the solution?
The CellVeillance will allow for remote capture and transfer with an off-the-shelf digital camera.
Internet
III. Packaging
• Pelican Case – Weatherproof (NEMA-4 Standards)
• Polycarbonate face plate (laser-cut for precision)
• Removable lower faceplate for easy access to battery
III. Testing– Practical Constraints
Type Name Description
Sustainability Self Test The device must be capable of remotely performing a self test.
Sustainability Upgradeable The device must be capable of accepting firmware upgrades.
Self Test: - Provides assurance - Capability to test all systems individually - Text file sent from the radio to the web server with diagnostics
Upgradeable: - Add functionality - Fix bugs
IV. Testing
Constraint Results
Battery Life Continuous transmission: 10 hoursOr standby mode: 72 hoursAnd normal mode: 2 hours
10 hours of continuous transmission and 5 hours of normal mode
Data Transmission
Compatible with GPRS cellular network
Images sent via GPRS network to webpage
Portability Physical dimensions of 12”L x 6”W x 6”D
12”L x 10”W x 6”D
Motion Detection
Distance of 30 feet at a 90-degree viewing angle
40 feet for 60 degrees and 30 feet for remaining 30 degrees
Compatibility Compatible with an off-the-shelf digital camera
3.1 Mega pixel Digital Concepts Camera
V. Testing - Power Supply
B.B. 12 V 7.5 Ah SLA Battery [2]
Constraint Description
Battery Life The device must be able to transmit data continuously for at least 10 hours or persist in standby mode for up to 72 hours without recharging, after which it can resume full functionality for 2 hours.
Manufacturer Specifications
Nominal Voltage 12 Volts
Rated Capacity 7.5 Ah
Total Mass 5.9 PoundsActual Run Time at 650
mA 11.5 Hours
Self Discharge Rates91% After 3 Months82% After 6 Months
64% After 12 Months
V. Testing - Portability
Constraint Description
Portability The physical dimensions must be less than 12 inches high, 6 inches wide, and 6 inches deep.
12”H
10”W
6”D
V. Testing - Motion Sensor
Constraint Description
Motion Detection The device must detect motion up to a distance of 30 feet at a 90-degree viewing angle.
V. Testing - Motion Sensor – Results
Manufacturer Specifications Measured Specifications
Maximum Detection Range 32.8' 40’
Maximum Horizontal Viewing Angle 110o 110o
Input Voltage 3.3 V 3.3 V
Output Type Digital (3.3 V) Digital (3.28 V)
Max Current Draw 60 µA ~60 µA
V. Testing – Camera Compatibility
Constraint Description
Compatibility The device must be compatible with an off-the-shelf digital camera.
Digital Camera SD Card Buffer
USB-SD Card Reader
Cable to Radio
V. Testing – Wireless Transmission
Constraint Description
Data Transmission
The device must be compatible with the GPRS cellular network.
Motorola G24 Radio [4]
V. Testing – Wireless Transmission
V. Testing – Wireless Transmission - Tests
File Size Poor Signal Strength-111 dBm < X < -93 dBm
Good Signal Strength-93 dBm < X < -73 dBm
Excellent Signal StrengthX > -73dBm
50 kB 12 seconds4.17 kB/s
10 seconds5 kB/s
7 seconds7.14 kB/s
200 kB 50 seconds4 kB/s
39 seconds5.12 kB/s
27 seconds7.41 kB/s
400 kB 97 seconds4.12 kB/s
77 seconds5.19 kB/s
55 seconds7.27 kB/s
1 MB 242 seconds4.13 kB/s
193 seconds5.18 kB/s
134 seconds7.46 kB/s
V. Testing - System Test
V. Testing - System Test
V. Testing - System Test
V. Testing - System Test
V. Testing – Web Interface
V. Testing – Web Interface
V. Testing – Web Interface
VI. Bill of Materials
Part Cost Part Number Distributor
TMS470 Microprocessor $16.26 296-18591-ND Digi-key
USB Communication $42.95 USBwiz OEM Board GHI Electronics
Case $57.83 Pelican 1400 Cases by Pelican
Camera $39.44 Digital Concepts 3.1 MP Wal-Mart
Radio $56.00 Motorola G24 Motorola
Battery $18.50 BB 12V 7.5Ah Battery Wholesale
MOSFET $0.27 497-2766-5-ND Digi-key
TriState Buffer $0.24 296-12781-5-ND Digi-key
Polycarbonate Sheet $5.16 85805K26 McMaster Carr
Misc(LEDs,Wire,etc.) $10.00
Total $246.65
VI. Questions?
VII. References
•[1] D. Cuevas, J. Harmond, J. Lunn, and T. Poschel, “CellVeillance Technical and Practical Design Constraints,” unpublished.•[2] (15, April 2007) DigiKey. [Online] Available: http://rocky.digikey.com/WebLib/B&B%20Battery/Web%20Photos/BP12-6-T2.jpg•[3] (15, April 2007) Panasonic Electric Works Corporation of America. [Online] Available: http://pewa.panasonic.com/pcsd/product/sens/select_motion.html•[4] (01, October 2007) MOTODEV. [Online] Available: http://developer.motorola.com/products/embeddeddevices/g24/