MAYFLOWER - NAVIGATION

 

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MAYFLOWER TRIMARAN - 1. The solar-powered research boat will aim to traverse the Atlantic Ocean in 2021 with no humans on board. 2. Sea trials are due to commence off the south coast of England in late 2020. 3. The Mayflower was officially unveiled on September 16th 2020, the 400th anniversary of the original Mayflower departure.

 

 

According to their information, the Mayflower is powered by AI and the energy from the sun and a small wing-sail. The autonomous boat, is a trimaran similar to the Cable and Wireless Adventurer in design - about one third the length - designed for long durations at sea with the object of collecting data about the ocean.

 

The vessel will make its own decisions on its course and collision avoidance, and will even make expensive satellite phone calls back to base if it deems it necessary. Data on hundreds of ships has already been collected in Plymouth Sound to feed its machine-learning algorithms.

The sensor technology guiding Mayflower's decision-making process includes:

* Light detecting and ranging (LIDAR)
* Radio detecting and ranging (RADAR)
* Global Positioning System (GPS)
* Satellites for communications
* Cameras for object recognition

* Graphics processors to process images

* Computers to process information and run programs

 

 

 

 

MAYFLOWER AUTONOMOUS SHIP (MAS)

 

An unmanned research ship presents many technical challenges. The MAS needs to understand its overall mission and destination but must be able to constantly update its route to gather the most valuable data in the short-term.

Navigation is a crucial issue for an autonomous vessel. To enable such feat to be accomplished technically, the following equipment will be onboard:



- Radar detects multiple hazards in MASís path, 2.5 nautical miles ahead.

 

- Onboard cameras provide visual input to an IBM computer vision system which identifies hazards like - cargo ships, fishing vessels, and even partially submerged shipping containers floating in the water.

 

- Automatic Identification System (AIS) provides specific information about the other shipís class, weight, speed, cargo, etc.

 

- GPS Navigation System provides MASís current location, heading, speed and course.

 

- MASís nautical chart server provides geospatial information about its chosen route.

 

- Weather data provided by The Weather Company.

 

- Attitude Sensors assess local sea state (how MAS pitches and rolls due to waves).

 

- Fathometer provides water depth measurements.

 

- Vehicle Management System provides operational data such as MASís battery charge level, power consumption, communications, science payloads etc.

 

 

 

HOW IT WORKS - Using a hypothetical example: "letís assume that MAS is in the open ocean, approaching Cape Cod, with no current network connectivity. In its path ahead is a cargo ship which has had a collision with a fishing vessel and lost some of its load. In this scenario, MASís AI Captain will use a host of technologies and processes to independently assess the situation and decide what action to take, without ever connecting to a land-based mission control."

 

 

IBM's Operational Decision Manager (ODM) evaluates COLREGs with respect to the other vessels in the vicinity and generates a risk map indicating an ďunsafeĒ situation ahead - if there is one.

MASís AI Captain ingests the ODM recommendation, computer vision input, current and forecasted weather and assesses several options to avoid any identified hazard.

The AI Captain determines the best action for MAS, in this hypothetical scenario, is to steer to starboard to avoid the unexpected navigation hazard, assuming that such decision will not ground or otherwise put the vessel in jeopardy. Hence, MASís Safety Manager verifies the decision is safe before qualifying any instruction. If that is verified, the AI Captain instructs MASís Vehicle Management system to change course and speed.

 

OBJECT RECOGNITION PROGRAMMING

 

Over two years, the Mayflower team has trained the ship's AI models using over a million nautical images collected from cameras in the Plymouth Sound, as well as utilizing other databases. The Team used an ABM Power AC922 with IBM Power9 CPUs and Nvidia V100 Tensor Core (graphics) GPUs, the same technology behind the world's smartest AI supercomputers. Using IBM's computer vision technology, the boats AI Captain should be able to detect and classify ships, buoys and other potential hazards such as land, man made obstructions and ocean debris.

 

 

 

 

 

Mayflower is significantly larger than the Scout from 2013 and Solar Voyager, a kayak from 2015/16. Both projects were designed to navigate The Pond autonomously on a low budget, but did not make it. They were small enough not to be designed for COLREGS compliance. Though, other military craft have surmounted that issue.

 

 

 

 

LINKS & CONTACTS

 

https://www.cnbc.com/2020/09/10/testing-begins-on-autonomous-mayflower-ship-ahead-of-atlantic-voyage.html

https://mas400.com/

http://www.promare.org/projects/
https://newsroom.ibm.com/then-and-now

 

 

 

 

 

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