Simulation modelling of operational tests to assess the reliability of railway automation software systems

Abstract A simulation model for in-servicetesting of software reliability assessment for railway automation systems is described in this paper. As a basic concept, the reliability indicators are calculated using the concept of a reference object, being the most common element of the respective train protection systems on the road network. We are aware that this concept is embedded in the subsystem for the formation of the reference object-element infrastructure of JSC “Russian Railways”, involving the function of bringing all track, electrification and power supply facilities as well as automation and telemechanics facilities to the reference objects. In order to develop this approach, the “Performance Test Simulation” application was developed on the Windows Presentation Foundation (WPF) platform, using the object- and component-oriented programming language C#, allowing the practical simulation of performance tests of reference objects of various types, during the design phase, using the Monte Carlo method.

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Smart Car Automated System to Assist the Driverin Detecting the Problem and Providing the Solution

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.f1147.0486s419 ◽

2019 ◽

Vol 8 (6S4) ◽

pp. 727-731 ◽

Cited By ~ 1

Keyword(s):

Mobile Application ◽

Low Cost ◽

Diagnostic System ◽

Emergency Situation ◽

Automated System ◽

Software Systems ◽

The Road ◽

On The Road ◽

Smart Mobile ◽

Integrated Software

Intodays world, Mobile application plays a very important role to process any type of data in hand. The mobile application is mainly developed for the drivers to work in mobile devices and to run on tablets and smart phones. These applications are used for various purposes like web browsing, calendar, buying music, gaming, traveling, entertainment, social networking and productivity. The mobile applications differ from the integrated software systems found in Personal Computers by its isolated functionality. The motor Car belongs to the mechanical world, and the functionality is not aware by all the drivers, thus it becomes a difficult one to handle it. In the existing system, there is no diagnostic system launched in mobile application for the drivers to find the minor problems in each and every car. There is only a manual book given to the drivers for motorcar by the manufacturer to see how to start a car and the parts of the car are given in detail. There is nothingmentioned about the minor problems that happens in the motorcar and the solution to recover it.To overcome the problems faced by the Drivers on the road and to help them in emergency situation, a Self Detection and recovery system is proposed for the Drivers, especially for the Learning drivers to detect the minorproblems in the vehicles and also to recover from those problems by using this automized smart system. Through this smart mobile application, the driver can find solutions for all the minor problems faced in the motorcar. The driver will be aware of exact fault and the driver can take necessary action accordingly. The proposed system acts as a good driver friendly interface for any Driver to detect the minor problem easily by using the alert signals and also to recover from these problems easily by searching through the terms, which usually denote the type of the problem and it accordingly find out the solutions, which would be highly helpful to proceed without interruption. The proposed system a low cost application wherein the driver has to sign up and find the solutions to the problems. This mobile application is secured because only the authorized driver can login and see the solutions but not by anyone else. This application gives the correct and exact solution to all the minor problems encountered by the mobile driver.

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Impacts of Different Driving Automation Levels on Highway Geometric Design from the Perspective of Trucks

Journal of Advanced Transportation ◽

10.1155/2021/5541878 ◽

2021 ◽

Vol 2021 ◽

pp. 1-17

Author(s):

Shuyi Wang ◽

Bin Yu ◽

Yang Ma ◽

Jinzhou Liu ◽

Wen Zhou

Keyword(s):

Traffic Safety ◽

Geometric Design ◽

Driving Safety ◽

Innovative Technology ◽

Design Elements ◽

The Road ◽

Positive Effects ◽

Sight Distance ◽

Automation Systems ◽

On The Road

Truck automation is emerging as an innovative technology with benefits in traffic safety and the economy to revolutionize freight traffic. Despite these benefits, the potential negative or positive effects of different driving automation levels (from no automation to full automation) on highway geometry remained to be determined. In this study, differences related to sight distance characteristics among varied automation levels were firstly discussed and calibrated. Then, seven analysis scenarios of typical levels were proposed. Based on each level with tailored characteristics, the current models of geometric design elements including the required stopping sight distance, horizontal sight line offset, and lengths of vertical curves were revised. Finally, impacts of each level on computed values of those elements were evaluated. Results show that high or full driving automation could substantially lower the requirements of geometric design. Active safety systems have a similar role but with less significant effects. Differently, the driver assistance and partial or conditional automation systems put a higher demand on the road geometric design in terms of driving safety. Outcomes of this study can be used to design real-world geometry of dedicated lanes and provide a methodological basis for the operation of different driving automation features.

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