Testbed architecture for maritime cyber-physical systems
The maritime sector plays a key role within every agenda for the automation of future mobility. By the increasing establishment of ICT-based components, such as bridge elements and automation technology, a radical change similar to the mobility on land and the aircraft industry can be observed, e. g. unmanned surface vehicles (USV) or autonomous surface vehicles (ASV). Harmonised strategies for e-navigation system design (e. g. the e-navigation Strategy Implementation Plan (SIP) by IMO) and safety requirements change the shipping industry in political and technological ways since several years. Cyber physical Systems (CPS) are a key technology to enable the development of highly automated and autonomous maritime systems. The development of new complex and distributed safety-critical systems increases the challenges of testing due to a variety of Verification and Validation (V+V) methods, strictly required confidence to functional correctness of heterogenous cooperating systems and management of test data. To facilitate these efforts, suitable engineering and risk assessment methods exist which will be performed by a test environment building the basis for putting the system under test in a controlled test setting.
In my research, the idea of a maritime physical testbed for the verification and validation of new maritime cyber-physical systems as a contribution to accelerate the development of technology for autonomous and automated seafaring will be focused. The testbed architecture supports the verification and validation of ship automation systems during various phases of the systems engineering process and the normative standards of the maritime domain. For this, architectural requirements for a testbed architecture considering the changing technologies, infrastructures and organisational structures on bridge as well as on shore are presented and a first concept for the testbed with a polymorphic interface will be described. As a key concept, the polymorphic interface will support various maritime standards/formats/regulations, such as IVEF, NMEA or S-100. It will be designed from a process-oriented point of view to design the testbed attractive for possible prototype developers. The maritime physical testbed LABSKAUS is per definition a CPS and implements components such as a research boat, sensor infrastructure and a reference waterway as part of an overarching testbed approach for virtual to physical tests along the design process. The developed testbed architecture will be applied to LABSKAUS. The evaluation of the approach is carried out by means of representative application scenarios and the formal verification of the requirements by means of a testbed evaluation method.