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Developing a framework for trustworthy autonomous maritime systems

Developing a framework for trustworthy autonomous maritime systems
Developing a framework for trustworthy autonomous maritime systems
A key risk with autonomous systems (AS) is the trustworthiness of the decision-making and control mechanisms that replace human control. To be trustworthy, systems need to remain safe while being resilient to unpredictable changes, functional/operational failures and cybersecurity threats. Rigorous validation (does the solution satisfy the stakeholders’ requirements and system’s needs?) and verification (is the system free from errors?) are essential to ensure trustworthiness of AS. Current engineering practice relies heavily on Verification and Validation (V&V) test-and-fix of system characteristics which is very time-consuming and expensive, limiting the possibilities for exploration of alternatives in system design. We present an approach to identifying and analysing mission requirements for squads of autonomous missions. Clear definition of requirements is an important pre-requisite for mission planning and for V&V of mission management. We use a structured approach to requirements identification and use formal modelling to help remove ambiguities in the requirements and to specify formal properties that should be satisfied by the missions. Our approach is being evaluated through consideration of a combined mission of the commercial C-Cat3 Unmanned Surface Vehicle (USV) (ASV Global, 2019) with deployment /recovery of small Unmanned Underwater Vehicles (UUV) within a shipping channel whereby the USV has to safely maintain station for a long period and then proceed to recover the UUV, while maintaining a communication link to an Unmanned Aerial Vehicle (UAV).
Formal Methods, Event-B, Requirements, Maritime Autonomous Systems
Dghaym, Dana
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Turnock, Stephen
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Butler, Michael
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Downes, Jonathan
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Hoang, Thai Son
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Pritchard, Ben
7829a095-d97d-488c-852c-02c23f939429
Dghaym, Dana
b7b69fe2-c9ff-43ad-a6ba-8b41d6fd19fc
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Butler, Michael
54b9c2c7-2574-438e-9a36-6842a3d53ed0
Downes, Jonathan
ebc0f09b-9d33-4815-bedf-bc77df59c822
Hoang, Thai Son
dcc0431d-2847-4e1d-9a85-54e4d6bab43f
Pritchard, Ben
7829a095-d97d-488c-852c-02c23f939429

Dghaym, Dana, Turnock, Stephen, Butler, Michael, Downes, Jonathan, Hoang, Thai Son and Pritchard, Ben (2019) Developing a framework for trustworthy autonomous maritime systems. In International Seminar on Safety and Security of Autonomous Vessels (ISSAV): ISSAV 2019. 10 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

A key risk with autonomous systems (AS) is the trustworthiness of the decision-making and control mechanisms that replace human control. To be trustworthy, systems need to remain safe while being resilient to unpredictable changes, functional/operational failures and cybersecurity threats. Rigorous validation (does the solution satisfy the stakeholders’ requirements and system’s needs?) and verification (is the system free from errors?) are essential to ensure trustworthiness of AS. Current engineering practice relies heavily on Verification and Validation (V&V) test-and-fix of system characteristics which is very time-consuming and expensive, limiting the possibilities for exploration of alternatives in system design. We present an approach to identifying and analysing mission requirements for squads of autonomous missions. Clear definition of requirements is an important pre-requisite for mission planning and for V&V of mission management. We use a structured approach to requirements identification and use formal modelling to help remove ambiguities in the requirements and to specify formal properties that should be satisfied by the missions. Our approach is being evaluated through consideration of a combined mission of the commercial C-Cat3 Unmanned Surface Vehicle (USV) (ASV Global, 2019) with deployment /recovery of small Unmanned Underwater Vehicles (UUV) within a shipping channel whereby the USV has to safely maintain station for a long period and then proceed to recover the UUV, while maintaining a communication link to an Unmanned Aerial Vehicle (UAV).

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issav_2019_revision4 - Accepted Manuscript
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More information

e-pub ahead of print date: 2019
Venue - Dates: International Seminar on Safety and Security of Autonomous Vessels (ISSAV), Helsinki, Finland, 2019-09-17 - 2019-09-18
Keywords: Formal Methods, Event-B, Requirements, Maritime Autonomous Systems

Identifiers

Local EPrints ID: 434545
URI: https://eprints.soton.ac.uk/id/eprint/434545
PURE UUID: 79072a08-17e6-463b-b114-935241c7345d
ORCID for Dana Dghaym: ORCID iD orcid.org/0000-0002-2196-2749
ORCID for Stephen Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for Michael Butler: ORCID iD orcid.org/0000-0003-4642-5373
ORCID for Jonathan Downes: ORCID iD orcid.org/0000-0003-2027-4474
ORCID for Thai Son Hoang: ORCID iD orcid.org/0000-0003-4095-0732

Catalogue record

Date deposited: 01 Oct 2019 16:30
Last modified: 02 Oct 2019 00:38

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