TRIDENT Underwater Wireless IP Camera System Security Surveillance Monitoring Media/Content 
The Trident is configured for harsh environments, including underwater, and aims to provide real-time or time-lapse visual sensing of remote locations with images transmitted securely over WiFi. The camera and its associated apparatus are designed to require little or no maintenance and be remotely accessed and reprogrammed to suit changing goals of observation. The compact package can easily be attached to existing platforms or structures in an unobtrusive way, or mounted to its own hardware, if none exists. The camera can also store its own data as a redundancy against communications interruptions.
 
(Left)-Camera image of the environmental sensor network array area in Tampa Bay
assessing the surface-water and weather conditions.
(Right)-Wireless night vision Camera observing pitch black mangrove region for activity. Features:
5-MegaPixel 1/2.5-Inch CMOS Image Sensor
MPEG4 compression with Dual Streams
Highest resolution: 1280 x 720
802.11b/g WiFi
Power Management Module
Embedded web server
Support for built-in microphone
Scheduled based recording capability
Onboard SD Card storage & FTP upload functionality
Support for POE
Specs:
VIDEO
Platform: TI Davinci
Sensor: 5-MegaPixel 1/2.5-Inch CMOS Image Sensor
System: NTSC/PAL
Highest Resolution: 1280x720
Lens: CS Mount
Iris type: DC-Auto or Manual
AWB range: 2500~7000K
AES: 1/30~1/1000
MIN ILLUMINATION
Colour: 1lux @ F1.2
B/W: 0.3 @ F1.2
IR Sensitivity: 400~650 nm
IMAGE
Compression: MPEG4/MJPEG
Resolution: MPEG4(720p/CIF Dual Stream) MPEG4(720p),MJPEG(VGA),MPEG4(CIF) Triple Stream
Frame Rate: upto 30fps
Configuration: Brightness, Contrast, AWB, Sharpness, Saturation
High Speed Shutter: 1/1000
SOFTWARE
Web Browser: Microsoft IE 6.0 or higher, VLC Media Player (Optional)
AUDIO
Built-in microphone, 8kHz sample rate
NETWORK
Interface: Ethernet(RJ-45 wired, 10/100 base-TX), 802.11b/g Wireless
Protocols: TCP/IP, DHCP, HTTP, UDP, FTP, SMTP, RTP
OTHER
Video Out: 1.0Vpp, 75ohm, composite
Alarm I/O: 1 Input/1 Output
Serial Port: RS-485
SD Card: alarm/scheduled recording
Power Requirement: DC 12V/ POE
Operation Temp: 0-50 degC
The communications bandwidth limitations in most current environmental sensor systems must be taken into account when considering emerging ecosystems observatories and their needs for high-density sensor deployment and video. By using an 802.11x approach, we have access to the inherent high-bandwidth capabilities of the protocol, which have become increasingly available as wireless infrastructure expands in marinas, shore-side hotels, ports, waterfront property, municipal networks, etc. This high-bandwidth availability will enable further applications in underwater optical and acoustic video for ecosystem observation and coastal/port security, as well as low bit-rate sensors for coastal observations.
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MORAY Micro-CTD (Conductivity, Temperature, Depth) System The Micro-CTD is a low-cost, miniature, in-situ data logger that monitors conductivity, temperature & depth of aquatic systems. Salinity measurements can be derived from the data.
The three sensors on the system are disposable and can be quickly exchanged in the field when contamination or bio-fouling occurs, resulting in minimal system downtime and a cost-effective monitoring device. Conductivity and temperature sensors are designed in-house and made of planar four-electrode nickel-platinum cells and copper metal resistive devices, respectively. Depth sensors are commercially available piezoresistive pressure devices manufactured by Intersema. 
Technical Information:
Power: External or Internal, 6-12V DC
Communications: RS/232, logged, cabled
Size: 89mm x 102mm
Memory: 128Mbyte Flash (2,000,000 lines of data)
Sample Rate: Programmable from 2 sec
Sensor Range: Conductivity: 0 to 70 mS/cm
Temperature: -5 to 55 0C
Depth: 0 to 140 meters
Software:
The CTD software is a comprehensive program, which allows the user to communicate with the system through the serial port. The software is a menu-driven program that allows the user to set the system clock, sampling start/stop times, sensor bias and calibration curves, memory format, sampling rate and sample mode (raw, parametric or calibrated). It also controls the downloading of logged files and has real-time data display capabilities. The data has the option of being displayed as raw (voltages), parametric (ohms, Siemens) or calibrated (°C, mS/cm) except for the pressure sensor, which is always displayed as mbars along with its temperature (°C). Salinity measurements are then independently calculated using the temperature and conductivity data with the Practical Salinity Scale 1978 formula. The low cost system permits a truly practical path toward salinity sensor networks and arrays.
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