Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019最新文献

Assessment of the Required Subdivision Index for Autonomous Ships based on Equivalent Safety 基于等效安全的自主船舶所需分舱指数评估

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-002

J. D. Vos, R. Hekkenberg

{"title":"Assessment of the Required Subdivision Index for Autonomous Ships based on Equivalent Safety","authors":"J. D. Vos, R. Hekkenberg","doi":"10.2478/9788395669606-002","DOIUrl":"https://doi.org/10.2478/9788395669606-002","url":null,"abstract":"In recent years, a significant amount of research has been conducted on autonomous ships. Since it is assumed that these ships will sail with a significantly reduced crew or even without people on board, the design of the ship needs reconsideration. The absence of people on board and the associated safety measures could result in a more efficient design. However, to achieve the required design freedom, the existing regulatory framework will have to be amended. In this article, we will focus on potential changes in the Convention for Safety Of Life At Sea (SOLAS) and in particular on the Required Subdivision Index. The evaluation is performed by using the principle of equivalent safety, which will ensure that unmanned ships will be at least as safe as manned ships. The index gives a requirement for the allowed probability of sinking when a ship is damaged due to collision or contact. The safety level is related to the safety of ship, cargo, environment and crew. If the crew is no longer present, the consequences of an incident will be less severe, since the probability of casualties is no longer present. If the principle of equivalent safety is applied, a lower subdivision index can be accepted for unmanned autonomous vessels. In this article, the level of risk that a manned ship is subjected to will be derived by means of a risk analysis. In this risk analysis all logical consequences of a collision will be taken into account, covering both the probability of losing the entire ship and the consequences of the cases where the ship will not sink. Thereafter, the Required Subdivision Index for unmanned ships, which ensures an equivalent safety level to an equivalent manned ship, is established. The sensitivity of the result to changes in the data is discussed as well.","PeriodicalId":405756,"journal":{"name":"Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125093969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparison of system modelling techniques for autonomous ship systems 自主船舶系统建模技术比较

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-011

Sunil Basnet, O. V. Banda, Meriam Chaal, S. Hirdaris, P. Kujala

引用次数: 3

A comparative safety assessment for Direct Current and Direct Current with hybrid supply power systems in a windfarm Service Operation Vessel using System- Theoretic Process Analysis 用系统理论过程分析方法对风电场作业船直流与混合供电系统的安全性进行了比较评价

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-016

V. Bolbot, R. Puisa, G. Theotokatos, E. Boulougouris, D. Vassalos

{"title":"A comparative safety assessment for Direct Current and Direct Current with hybrid supply power systems in a windfarm Service Operation Vessel using System- Theoretic Process Analysis","authors":"V. Bolbot, R. Puisa, G. Theotokatos, E. Boulougouris, D. Vassalos","doi":"10.2478/9788395669606-016","DOIUrl":"https://doi.org/10.2478/9788395669606-016","url":null,"abstract":"As windfarms are moving further offshore, their maintenance has to be supported by the new generation Service Operation Vessels (SOV) with Dynamic Positioning capabilities. For the SOV safe operations it is crucial that any hazardous scenario is properly controlled. Whilst international regulations require the implementation of Failure Modes and Effects Analysis (FMEA) for SOV power systems, FMEA has been criticised for not addressing properly failures in control systems. In this study, System-Theoretic Process Analysis (STPA) is employed for identifying the hazardous scenarios in terms of Unsafe Control Actions (UCAs) in Direct Current (DC) and DC with batteries power systems. Then the identified UCAs are ranked based on their risk. The results demonstrate that the number of hazardous scenarios derived by the STPA increases in a power system with batteries in comparison to a conventional DC power system, thus depicting higher complexity of this system. However, the increase in overall risk is small and within acceptable limits, whilst the risk reduces for a number of UCAs leading to Diesel Generator overload sub-hazard.","PeriodicalId":405756,"journal":{"name":"Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133086378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trustworthy versus Explainable AI in Autonomous Vessels 自主船舶中值得信赖的人工智能与可解释的人工智能

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-004

Jon Arne Glomsrud, André Ødegårdstuen, A. S. Clair, Ø. Smogeli

引用次数: 21

Developing a Framework for Trustworthy Autonomous Maritime Systems 开发一个可信赖的自主海事系统框架

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-007

Dana Dghaym, S. Turnock, Michael J. Butler, J. Downes, Son Hoang, Ben Pritchard

{"title":"Developing a Framework for Trustworthy Autonomous Maritime Systems","authors":"Dana Dghaym, S. Turnock, Michael J. Butler, J. Downes, Son Hoang, Ben Pritchard","doi":"10.2478/9788395669606-007","DOIUrl":"https://doi.org/10.2478/9788395669606-007","url":null,"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.\u0000We 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).","PeriodicalId":405756,"journal":{"name":"Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128302456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Risks of Remote Pilotage in an Intelligent Fairway – preliminary considerations 智能航道远程引航的风险——初步考虑

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-005

J. Lahtinen, O. V. Banda, P. Kujala, S. E. Hirdaris

引用次数: 4

Development of functional safety requirements for DP-driven servicing of wind turbines 风力涡轮机dp驱动维修功能安全要求的制定

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-013

R. Puisa, V. Bolbot, Ivar-André F. Ihle

{"title":"Development of functional safety requirements for DP-driven servicing of wind turbines","authors":"R. Puisa, V. Bolbot, Ivar-André F. Ihle","doi":"10.2478/9788395669606-013","DOIUrl":"https://doi.org/10.2478/9788395669606-013","url":null,"abstract":"The adage “prevention is better than cure” is at the heart of safety principles. However, effective accident prevention is challenging in complex, highly automated systems such as modern DP-driven vessels, which are supposed to safely transfer technicians in often unfavourable environmental conditions. FMEA analysis, which is required for DP-driven vessels, is helpful to build-in a necessary level of redundancy and thereby mitigate consequences of failures, but not particularly helpful to inform preventive measures, not least against functional glitches in controlling software. In this paper we develop a set of functional safety requirements which are aimed at prevention of causal factors behind drift-off, drive-off and other hazardous scenarios. For this purpose, we use a systemic hazard analysis by STPA, which delivers both failure and interaction-based (reliable-but-unsafe) scenarios. The functional requirements cover both design and operational (human element related) requirements, which are then ranked based on our proposed heuristic. The ranking is not predicated on statistics or expert option but instead it is proportional to the number of hazardous scenarios a requirement protects against, hence indicating the relative importance of the requirement. The paper also summarises the suggested areas of safety improvement for DP-driven vessels.","PeriodicalId":405756,"journal":{"name":"Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132476063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An initial hierarchical systems structure for systemic hazard analysis of autonomous ships 自主船舶系统危害分析的初始层次系统结构

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-012

Meriam Chaal, Osiris A. Valdez Banda, Sunil Basnet, S. Hirdaris, P. Kujala

引用次数: 5

Border crossing point as a socio-technical system: applying STAMP and STPA to border security 口岸作为社会技术系统:STAMP和STPA在边境安全中的应用

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-019

Laura Salmela, Eetu Heikkilä, Sirra Toivonen, R. Tiusanen

引用次数: 0

System-theoretic process analysis for safety analysis of cooperative material handling machinery – Concept and initial experiences 协同物料搬运机械安全分析的系统理论过程分析。概念和初步经验

Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019 Pub Date : 2020-12-31 DOI: 10.2478/9788395669606-015

Tommi Kivelä, K. Furmans

{"title":"System-theoretic process analysis for safety analysis of cooperative material handling machinery – Concept and initial experiences","authors":"Tommi Kivelä, K. Furmans","doi":"10.2478/9788395669606-015","DOIUrl":"https://doi.org/10.2478/9788395669606-015","url":null,"abstract":"In material handling and logistics, there’s a trend towards increasingly adaptable and flexible approaches on all system levels: from the supply chain and logistic network level down to the factory and warehouse floors. Recent examples of increasingly flexible material handling technologies on the floor level are autonomously navigating automated guided vehicles (AGVs) and plug-and-work material handling systems, the first allowing adaptable material flow systems with minimal fixed infrastructure, the latter allowing the user to easily re-configure steady conveyor systems on demand. In the field of safety engineering, there has recently beenresearch towards safety assurance of open adaptive systems (OAS) with frameworks such as runtime certification as potential enabler for these novel systems. In this work, we seek to combine recent concepts from the safety engineering community with traditional and advanced technologies from the area of material handling machinery to enable the next step in operational flexibility in this application area. We suggest potential application use cases which would be enabled by the use of dynamic safety contracts: safely cooperating material handling machinery. Compared to machinery with traditional, fixed interfaces, the machine-to-machine cooperation will increase the complexityofthe requiredsafety-related control systems and software, which will in turn require new approaches for the risk assessment and safety engineering of these types of systems.We suggest the use of STPA for safety-driven design of cooperative material handlingmachinery. We discuss one novel application concept, AGV-Storage crane cooperative handover,in detailand present initial results of STPA analysis for the application.","PeriodicalId":405756,"journal":{"name":"Proceedings of the International Seminar on Safety and Security of Autonomous Vessels (ISSAV) and European STAMP Workshop and Conference (ESWC) 2019","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123225457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0