Automated Testing

2019 ◽  
pp. 1434-1456
Author(s):  
Lennart Asbach ◽  
Hardi Hungar ◽  
Michael Meyer zu Hörste
Keyword(s):  
Control System ◽  
Traffic Management ◽  
State Of The Art ◽  
Automated Testing ◽  
Management Systems ◽  
Cost Factor ◽  
Train Control ◽  
Train Control System ◽  
Cost Efficient

The need for time- and cost-efficient tests is highly relevant for state-of-the-art safety-related train control and rail traffic management systems. Those systems get increasingly more complex and so testing becomes a more and more and important cost factor. This chapter discusses some approaches to relocate tests from the field to the lab, reduce cost and duration while improving quality of lab tests. The European Train Control System (ETCS) is used as an example, but the approaches and results can be applied to other systems as well, for instance interlocking.

Automated Testing

2016 ◽  
pp. 250-272
Author(s):  
Lennart Asbach ◽  
Hardi Hungar ◽  
Michael Meyer zu Hörste
Keyword(s):  
Control System ◽  
Traffic Management ◽  
State Of The Art ◽  
Automated Testing ◽  
Management Systems ◽  
Cost Factor ◽  
Train Control ◽  
Train Control System ◽  
Cost Efficient

The need for time- and cost-efficient tests is highly relevant for state-of-the-art safety-related train control and rail traffic management systems. Those systems get increasingly more complex and so testing becomes a more and more and important cost factor. This chapter discusses some approaches to relocate tests from the field to the lab, reduce cost and duration while improving quality of lab tests. The European Train Control System (ETCS) is used as an example, but the approaches and results can be applied to other systems as well, for instance interlocking.

Verification and Validation of Interoperability

2012 ◽  
pp. 116-127
Author(s):  
Lars Ebrecht ◽  
Michael Meyer zu Hörste
Keyword(s):  
Control System ◽  
Traffic Management ◽  
Management System ◽  
Test Methods ◽  
Verification And Validation ◽  
Train Control ◽  
The Third ◽  
Train Control System ◽  
Integration Test ◽  
Traffic Management System

The chapter shows an approach to use existing test methods to prove technical as well as operational interoperability. The first kinds of tests are test sequences to validate conformity of a single constituent – here, an on-board on-board unit (OBU) of the European Train Control System (ETCS) in the European Rail Traffic Management System (ERTMS). The second kind of tests is the integration test for assemblies – here, the complete on-board equipment. The third kinds of tests are the tests for the validation of operational serviceability. An approach for the stepwise integration of the different kinds of tests is shown. As a conclusion the perspective for the use of these test sequences in an independent test lab is given.

scholarly journals DEPLOYMENT OF ERTMS IN CZECH REPUBLIC

2016 ◽  
Vol 5 ◽  
pp. 69 ◽  
Author(s):  
Jiří Vopava ◽  
Mária Jánešová ◽  
Radek Kratochvíl
Keyword(s):  
European Union ◽  
Czech Republic ◽  
Control System ◽  
Traffic Management ◽  
Management System ◽  
Train Control ◽  
Rail Vehicle ◽  
Train Control System ◽  
European Union Countries ◽  
Traffic Management System

The article describes current situation and expected deployment of international standard for automatic rail vehicle protection in Czech Republic for period 2014 – 2020. Article introduces expected status in 2020 and subsequent implementation of commitments until 2026. It introduces expected result of gradual implementation for tracks and vehicles. It also displays brief deployment overview of European Rail Traffic Management System in European Union countries for each level of European Train Control System.

A Simulation Software for the Evaluation of Vulnerabilities in Reputation Management Systems

2021 ◽  
Vol 37 (1-4) ◽  
pp. 1-30
Author(s):  
Vincenzo Agate ◽  
Alessandra De Paola ◽  
Giuseppe Lo Re ◽  
Marco Morana
Keyword(s):  
Quality Of Service ◽  
Distributed Systems ◽  
State Of The Art ◽  
Simulation Software ◽  
Reputation Management ◽  
Management Systems ◽  
Security Attacks ◽  
Vulnerability Evaluation ◽  
Multi Agent

Multi-agent distributed systems are characterized by autonomous entities that interact with each other to provide, and/or request, different kinds of services. In several contexts, especially when a reward is offered according to the quality of service, individual agents (or coordinated groups) may act in a selfish way. To prevent such behaviours, distributed Reputation Management Systems (RMSs) provide every agent with the capability of computing the reputation of the others according to direct past interactions, as well as indirect opinions reported by their neighbourhood. This last point introduces a weakness on gossiped information that makes RMSs vulnerable to malicious agents’ intent on disseminating false reputation values. Given the variety of application scenarios in which RMSs can be adopted, as well as the multitude of behaviours that agents can implement, designers need RMS evaluation tools that allow them to predict the robustness of the system to security attacks, before its actual deployment. To this aim, we present a simulation software for the vulnerability evaluation of RMSs and illustrate three case studies in which this tool was effectively used to model and assess state-of-the-art RMSs.

The state of the art and operational scenarios for urban air mobility with unmanned aircraft

2021 ◽  
pp. 1-30
Author(s):  
F. D. Maia ◽  
J. M. Lourenço da Saúde
Keyword(s):  
Traffic Management ◽  
State Of The Art ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Civil Aviation ◽  
Management Systems ◽  
Urban Air ◽  
Aircraft Systems ◽  
Starting Point ◽  
Standards And Regulations

ABSTRACT A state-of-the-art review of all the developments, standards and regulations associated with the use of major unmanned aircraft systems under development is presented. Requirements and constraints are identified by evaluating technologies specific to urban air mobility, considering equivalent levels of safety required by current and future civil aviation standards. Strategies, technologies and lessons learnt from remotely piloted aviation and novel unmanned traffic management systems are taken as the starting point to assess operational scenarios for autonomous urban air mobility.

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