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In this paper, we propose an algorithm supporting distributed mobile sensor networks (MSN) for scalar field mapping that has many applications such as environmental monitoring or battle field surveillance, etc. We exploit the integration between compressive sensing (CS) and the collaboration of the mobile sensors. In the algorithm each distributed mobile sensor measures at random positions in the...
In this paper we urge the creation of new managerial tools and techniques that are relevant to the complexity of today's system of systems (SOS). Normal modes of command and control systems cannot be effective under conditions where new constraints are added on a recurrent basis to the system of systems in response to emergent problems within the systems due to increased coupling introduced in component...
The power system forms the backbone of a modern society, and its security is of paramount importance to nation's economy. However, the power system is vulnerable to intelligent attacks by attackers who have enough knowledge of how the power system is operated, monitored and controlled. This paper proposes a game theoretic approach to explore and evaluate strategies for the defender to protect the...
The research area systems-of-systems engineering has increased rapidly over the last decade and now contains a substantial body of literature. To get an overview of the field, a systematic mapping of the literature has been done, covering over 3000 papers. It revealed a field massively dominated by US researchers, with an emphasis on military and space systems. A large number of people are involved,...
This paper presents a model-based safety architecture framework (MBSAF) for capturing and sharing architectural knowledge of safety cases of safety-critical systems of systems (SoS). Whilst architecture frameworks in the systems engineering domain consider safety often as dependent attribute, this study focusses specifically on sharing architectural knowledge of safety cases between stakeholders and...
Large complex Industrial projects most often are interdisciplinary and require a complex systems engineering approach to guarantee success. In this paper we present a successful implementation of a true systems engineering approach to a summer internship program in industry. We exported the methods and lessons learned to an academic environment. For each project a group of six to fifteen students...
The information flow among the Constituent Systems of a System-of-Systems can take place via two different channels: the message transport along communication channels in cyber space which includes the human-to-human communication in natural language among the humans that are part of the Constituent Systems, and the indirect information flow via sensors and actuators to the physical environment, called...
Factories are examples of system of systems with all related problems of integral ownership, lack of overview, emerging properties, and many stakeholders making decisions locally. In the past 7 years, engineers at the GKN Aerospace factory in Kongsberg have been modeling parts of the factory to tackle the complexity of such a facility. In successive papers, they have shown that modeling helps in understanding,...
This paper discusses the use of the system-of-systems (SoS) methodology and SoS engineering (SoSE) to the challenge of the design and operation of a CubeSat-class spacecraft. It considers this in the context of one critical component system, the electrical power system (EPS) which interacts with virtually all other systems onboard the spacecraft. The spacecraft is also considered in the context of...
This paper presents a conceptual causal model for the contributions of enterprise systems engineering (ESE) to systems acquisition success when the systems under development are complex and include direct interaction between users and the finished product (versus an embedded effort). The model takes the form of a directed acyclic graph and its major components consist of collaboration support, ESE...
In light of European and worldwide environmental programs, reduction of CO2 emissions and improvements in air quality receive a lot of attention. A prominent way to improve on both aspects is the replacement of Internal Combustion Engine Vehicles with Electrical Vehicles. Yet, simply replacing vehicles will not result in proper electric mobility because using Electrical Vehicles depends on many systems...
Handling complexity is a major challenge for the development of product systems, especially in the field of autonomous robots. Considering the production system of such an autonomous robot, which is more and more realized by collaborative System of Systems (SoS), increases the complexity. To manage this complexity, a systematic approach is necessary. The following paper describes an approach to analyze...
The steelmaking-continuous casting (SCC) process, which consists of steelmaking, refining and continuous casting stage, is usually the critical process in iron and steel industry. This paper aims to propose a simulation method for the realistic hybrid flow shop scheduling problem resulting from the SCC process. A mathematic model based on a comprehensive investigation is built first. Then, a simulation...
The Smart Grid, the next generation power grid, comes with promises of widely distributed automated energy delivery, self-monitoring, self-healing, energy efficiency, utility and cost optimization. However, as attacks on the current power grid and similar systems indicate, the Smart Grid will be vulnerable to all kinds of attacks and will even raise new security challenges, due to its complex nature...
The evaluation of mental workload using a pysiological index is useful to read the performance of ship bridge teammates: a captain, a duty officer, a helmsman, and a pilot. The physiological indices, heart rate variability (R-R interval), salivary amylase and nitrate, and facial (nasal) temperature, are fine indices for picking up during their ship handling. It usual evaluates for veteran-seafarers...
This paper has three main objectives. The first objective is to summarize the requirements for RAM (Reliability, Availability, and Maintainability) parameters of European Rail Traffic Management System (ERTMS) defined in the railway standards. The second objective is to emphasize that the RAM requirements should be considered at the ERTMS SoS level. The third objective is to highlight major issues,...
In this paper a new simplified adaptive filter algorithm is introduced which is based on the hybrid operation of variable step-size and fixed step-size least mean square adaptive algorithm. In this proposed algorithm the variable step-size is used in the first stage, the algorithm adopts the fixed step size least mean square (LMS) whenever an acceptable mean square error threshold is reached that...
There are few regulatory restrictions involving the use of fully autonomous unmanned aerial systems in unpopulated, farming areas of Australia. The combination of a fully autonomous aerial and ground systems would provide efficient and cost effective retrieval of soil and vegetation data for use in precision agriculture. The aerial system will survey the site and collect spectral imagery to analyse...
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