System Summary
Detecting Man Overboard on Cruise ShipsMan Overboard events continue to be a common occurrence in the cruise industry and other related markets. The problem is compounded by the fact that when these events occur the timely availability of important data is missing. Accurate confirmation of the event including time of occurrence, location on the ship and location in the sea is critical, but often unavailable for hours following an occurrence, if at all. Fortunately, proactive detection systems such as the Man Overboard Detection System from PureTech Systems, can accurately detect man overboard events and provide immediate, actionable data to response personnel.

Human Test of Man Overboard System
Video: Human Test

Man Overboard Day Testing using OSCAR dummy
Video: OSCAR Day Test

Using thermal cameras to detect man overboard
Video: OSCAR Night Test


    Man Overboard Detection System
  • Automatic Detection of Man Overboard Events
  • Patented Video-Based Solution
  • Detection Rates Above Industry Benchmarks Over Wide Variations in Sea State and Weather Conditions.
  • Very Low False Alarm Rate
  • Instant Video Validation of Event for Immediate Action
  • Reporting of Event Latitude and Longitude (i.e. Location in the Sea)
  • Fall Origin Guidance (i.e. Location on the Ship)
  • Alarm and Video Retention and Review
  • Situational Presentation of Incident Data to Decision Makers
  • In Service Installation
  • Drone Integration Capability – Automatic Search and Rescue Dispatch with Live Video

Camera Layout for MOB Detection System

Camera Layout for Superliner Class Ships

Accurate Video Detection
The system utilizes infrared imagers combined with geospatial video analytics, which not only provide instant visual proof of an event, but also achieves detection rates above industry benchmarks in various ranges of sea states and weather conditions. Detection coverage encompasses the length of ship, including all passenger floor levels and is accurate for both cold and warm water cruise routes.

Situationally Aware User Interface
Use of geospatial data within the detection algorithms allows for a user interface that is easy to understand and simple to use. In situations, such as man overboard events, providing a high level of situational awareness aids first responders in gaining a full understanding of the event as quickly as possible. This is achieved through geolocation of the alarm location, instant access to detection images, looping videos of the event, as well as audio notification. The system includes a full alarm database and video playback capability.

Man Overboard Detection User Interface

Man Overboard Detection User Interface

Field Tested for Low False Alarms
Almost as important as detection accuracy, false alarms from weather conditions and cruise operations can minimize the effectiveness of detection systems. The Man Overboard Detection System has undergone real-world testing on board superliner-class cruise ships using industry-developed guidelines along established cold water and warm water cruise routes. The system is affordable and testing demonstrated positive results including minimal false alarms, and very high detection rates.

Normal Operation Man Overboard Events

Example Events, Which Do Not Result in False Alarms

System Overview
Man Overboard Detection System Architecture

System Diagram - Superliner Class Ships

Robust Feature Set
Man Overboard Detection on Cruise Ship Advanced Video Analytics Filter Out Background Motion (Clouds, Water, Birds)

Automatic Generation of Alarm with Instantaneous Looping Video

Location of Overboard Event Computed Along Ship’s Length

Video Recording and Playback

Multiple Means of Alarm Notification (Client Software, Email, Audible Alarm)

Applicable to All Ship Classes

No Floor Height Limit

9m Side Detection Range (Including Angle of List)

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