OWL^TM Overview : Hardware

Introduction

This document describes the hardware components of the OWL^TM system. It is written to give an overview of the system on the highest level. It shows the components, connections between the components, connections between the OWL^TM and it's platform (ship/buoy/rig) and specifications.

Detailed datasheet? OWL^TM Shipborne and OWL MAP^TM is attached.
Description of the measurement process is described in Physics of OWL^TM^.

Block Diagram

The system has two components:

• Junction box that holds circuit breakers, power-line communication modem and server.

The junction box needs a LAN cable and a regular AC current from mains.

• Measurement device enclosed in a high durability, climate controlled aluminium box.

Also included in the box:

• 40 meters of heavy duty electrical cable for connecting Junction box and Measurement device. The Measurement device side of the cable has an space grade plug. Longer cable is available upon request, but the maximum length is 300 m. The maximum length is defined by the power-line communication.
• GPS antenna
• GPS antenna extension cord. The antenna must not be in the field of strong radio signal(for example ships radar) and the cord provides flexibility of choice on position.
• Custom made fastenings. The drawing of the railing is necessary for us to manufacture the components.

Specifications

Operational
Sensing	5 to 30 m
Conditions of operation	Continuous, Day and Night
Sensitivity for oil products:
Min concentration in water column	1ppm
Min oil thickness on water surface	1μm
Maximum detection depth	3m
Pulse Repetition (Sampling) rate	Up to 100Hz
Sensing laser	Excimer type, XeCl, 308nm
Hyperspectral detector	Ultraviolet(UV) and visible spectral range
GPS	Integrated
Control and communication
Operational control	Integrated micro-controller
Data storage	Local and central servers
Setup of device operation	Remote, via local server, embedded WEB
Communication line	Power-line communication
Alarm processing	Automatic
Data visualization on the map	Real-Time
General
Power consumption	150 W/(1500 W arctic)
Input voltage	230VAC/50/60Hz
Dimensions (L x W x H)	65 cm x 45 cm x 37 cm
Weight	40 kg

List of identifiable oil types

• Light oil
• Medium oil
• Crude oil

Safety The LASER in the measurement device is eye safe. See declaration of safety​.

System installation

The Measurement device has robust attachment points along the longest edges. The customers needs to specify where the device is meant to be installed. A drawing of the railing is necessary for us to manufacture the appropriate fastenings.

The Junction Box should be installed indoors. The enclosure of the Junction Box is not weatherproof nor climate controlled. It is a metal box that will be mounted on a wall. It requires power and Local Area Network connections. The image below shows the typical setup. The Junction box size and shape may be altered to fit the customers needs. Even more so when optional screen and keyboard are removed.

Example of installed measurement device is shown below.

The system may be accessed from any computer on the same network. If the ship does not have any computer networks the computer in the Junction box will act as a system router and provide network control.