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.Prototype Design IV.Testing V.Future Plans 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 several off-the-shelf cameras of varying resolutions.

III. Prototype Design The CellVeillance is divided up into four major subsystems: Power – Justin Motion Detection – Damion Wireless Communication – Josh and Tyler Camera Compatibility – Josh and Tyler Each of these subsystems have been designed and tested with the technical and practical constraints in mind.

III. Prototype Design – Practical Constraints TypeNameDescription SustainabilitySelf TestThe device must be capable of remotely performing a self test. SustainabilityUpgradeableThe device must be capable of accepting firmware upgrades. Self Test: - Provides assurance - Capability to test all systems individually Upgradeable: - Add functionality - Fix bugs

IV. Testing - Power Supply B.B. 6 V 12 Ah SLA Battery [2] ConstraintDescription Battery LifeThe device must be able to transmit data continuously for at least 10 hours and persist in standby mode for up to 72 hours without recharging, after which it can resume full functionality for 2 hours. Manufacturer Specifications Nominal Voltage6 Volts Rated Capacity12 Ah Total Mass4.6 Pounds Calculated Run Time at 350 mA34 Hours Self Discharge Rates 91% After 3 Months 82% After 6 Months 64% After 12 Months

IV. Testing - Power Supply - Tests System Idle mATransmitting Pictures 350 mA

IV. Testing – Power Supply - Results System Current DrawPeukert’s Equation Idle with GPRS off100mA T = C / I Idle with GPRS on200mAT = Time (Hours) System Transmitting350mAC = Battery Capacity (Ah) I = Current (Amps) Panasonic Battery Transmitting:T = 12Ah / 350mAIdle State: T = 12Ah / 100mA T = 34 Hours T = 120 Hours

IV. Testing - Solar Panel Manufacturer Specifications Nominal Voltage9 Volts Rated Capacity350 mA Total Mass5 Ounces Size W” x L”4 1/2” x 8 1/4” SolarWorld 9 V 350 mA Solar Panel

IV. Testing – Solar Panel - Test Average Current Output Direct Sunlight 350 mA Shady Conditions 130 mA Time to Recharge Battery 24 pictures per day = 2 hours transmitting = 22 hours idle 1 day power consumption = 2.9 Ah In direct sunlight it takes 8.3 hours of recharging to completely recharge our battery.

IV. Testing - Motion Sensor ConstraintDescription Motion Detection The device must detect motion up to a distance of 30 feet at a 90-degree viewing angle. Panasonic PIR Sensor [3]

IV. Testing - Motion Sensor - Tests

IV. Testing - Motion Sensor – Results Manufacturer SpecificationsMeasured Specifications Maximum Detection Range32.8'40’ Maximum Horizontal Viewing Angle110 o Input Voltage5 V4.9 V Output TypeDigital (5 V)Digital (4.87 V) Max Current Draw300 µA~300 µA

IV. Testing - Portability ConstraintDescription PortabilityThe physical dimensions must be less than 12 inches high, 6 inches wide, and 6 inches deep.

IV. Testing – Wireless Transmission ConstraintDescription Data Transmission The device must be capable of transmitting data wirelessly. Telit GM862-GPS Modem [4]

IV. Testing – Wireless Transmission - Tests File SizePoor Signal Strength -111 dBm < X < -93 dBm Good Signal Strength -93 dBm < X < -73 dBm Excellent Signal Strength X > -73dBm 50 kB75 seconds 0.66 kB/s 74 seconds 0.68 kB/s 75 seconds 0.66 kB/s 100 kB161 seconds 0.62 kB/s 161 seconds 0.62 kB/s 161 seconds 0.62 kB/s 200 kB298 seconds 0.67 kB/s 299 seconds 0.67 kB/s 299 seconds 0.67 kB/s 400 kB615 seconds 0.65 kB/s 615 seconds 0.65 kB/s 615 seconds 0.65 kB/s 1 MB1515 seconds 0.66 kB/s 1519 seconds 0.66 kB/s 1515 seconds 0.66 kB/s

IV. Testing – Camera Compatibility ConstraintDescription CompatibilityThe device must be compatible with an off-the-shelf digital camera. SD Dongle SD Card USB-SD Card Reader

IV. Testing - System Test

IV. Testing - System Test (2)

IV. Testing - System Test (3)

IV. Testing - System Test (4)

V. Future Plans Implement software remote capture Create web interface for viewing pictures and controlling the CellVeillance Create printed circuit board Weatherproof housing

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: os/BP12-6-T2.jpg [3] (15, April 2007) Panasonic Electric Works Corporation of America. [Online] Available: ml [4] (15, April 2007) Telit. [Online] Available: