scholarly journals Accessible Real-Time Surveillance Radar System for Object Detection

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2215 ◽  
Author(s):  
Seongha Park ◽  
Yongho Kim ◽  
Kyuhwan Lee ◽  
Anthony H. Smith ◽  
James E. Dietz ◽  
...  

As unmanned ground and aerial vehicles become more accessible and their usage covers a wider area of application, including for threatening purposes which can cause connected catastrophe, a surveillance system for the public places is being considered more essential to respond to those possible threats. We propose an inexpensive, lighter, safer, and smaller radar system than military-grade radar systems while keeping reasonable capability for use in monitoring public places. The paper details the iterative process on the system design and improvements with experiments to realize the system used for surveillance. The experiments show the practical use of the system and configuration for a better understanding of using the system. Cyber-physical systems for outdoor environments can benefit from the system as a sensor for sensing objects as well as monitoring.

2017 ◽  
Vol 4 (2) ◽  
pp. 197-208 ◽  
Author(s):  
Bryant Walker Smith

Automated driving has attracted substantial public and scholarly attention. This brief Article describes how that attention has brought new fame to a classic philosophical thought experiment (the “trolley problem”), critiques how this thought experiment has been applied in that context, proposes a more practical extension of that experiment based on risk rather than harm, notes that this extension may still involve programming value judgments, argues with reference to the Ford Pinto debacle that these judgments could inflame juries or the public at large, and emphasizes the need for appropriately focused public discussion of these issues. The Article may be especially relevant to developers and regulators of cyber-physical systems, including the automated driving systems that operate self-driving vehicles.


Author(s):  
Okolie S.O. ◽  
Kuyoro S.O. ◽  
Ohwo O. B

Cyber-Physical Systems (CPS) will revolutionize how humans relate with the physical world around us. Many grand challenges await the economically vital domains of transportation, health-care, manufacturing, agriculture, energy, defence, aerospace and buildings. Exploration of these potentialities around space and time would create applications which would affect societal and economic benefit. This paper looks into the concept of emerging Cyber-Physical system, applications and security issues in sustaining development in various economic sectors; outlining a set of strategic Research and Development opportunities that should be accosted, so as to allow upgraded CPS to attain their potential and provide a wide range of societal advantages in the future.


Author(s):  
Curtis G. Northcutt

The recent proliferation of embedded cyber components in modern physical systems [1] has generated a variety of new security risks which threaten not only cyberspace, but our physical environment as well. Whereas earlier security threats resided primarily in cyberspace, the increasing marriage of digital technology with mechanical systems in cyber-physical systems (CPS), suggests the need for more advanced generalized CPS security measures. To address this problem, in this paper we consider the first step toward an improved security model: detecting the security attack. Using logical truth tables, we have developed a generalized algorithm for intrusion detection in CPS for systems which can be defined over discrete set of valued states. Additionally, a robustness algorithm is given which determines the level of security of a discrete-valued CPS against varying combinations of multiple signal alterations. These algorithms, when coupled with encryption keys which disallow multiple signal alteration, provide for a generalized security methodology for both cyber-security and cyber-physical systems.


Author(s):  
Francine May

Methods for studying the public places of libraries, including mental mapping, observation and patron mapping are reviewed. Reflections on the experience of adapting an observational technique for use in multiple different library spaces are shared. Sont passées en revue les méthodes pour étudier la place publique des bibliothèques, y compris les représentations mentales, l’observation et la catégorisation des usagers. L’auteure partage ses réflexions sur l’expérience d’adapter une technique d’observation à différents espaces de bibliothèque. ***Full paper in the Canadian Journal of Information and Library Science***


2018 ◽  
Vol 1 (29) ◽  
pp. 148-165
Author(s):  
طالب منعم حبيب الشمري ◽  
عبد الرزاق حسين حاجم

  The obelisk is a large stone block with a height ranging from 50 cm to 3 m. It varies in width from one obelisk to another. It is sculptured from one side or two or four sides with prominent picture inscriptions, often accompanied by cuneiform texts for immortalising kings and their military campaigns. This obelisk is constructed in a rectangular or square, and some of them a dome convex or semi-circular or pyramid. The lower section of the obelisks is wide, similar to the base of the base, and another section is sculpted on a slightly sloping end, so that it can easily be attached to the ground or placed on a special base. The rulers and kings of Mesopotamia established and displayed the obelisk in public places in order to be seen by the public.  It also was placed in the yards of temples or public squares and squares and the streets of cities. It used to celebrate their religious, military and historical achievements in order to immortalise their actions. These obelisks are held to commemorate the deeds of kings and their achievements in peace and war as confirmed by the cuneiform texts and the artistic scenes implemented on them.


Author(s):  
A. V. Smirnov ◽  
T. V. Levashova

Introduction: Socio-cyber-physical systems are complex non-linear systems. Such systems display emergent properties. Involvement of humans, as a part of these systems, in the decision-making process contributes to overcoming the consequences of the emergent system behavior, since people can use their experience and intuition, not just the programmed rules and procedures.Purpose: Development of models for decision support in socio-cyber-physical systems.Results: A scheme of decision making in socio-cyber-physical systems, a conceptual framework of decision support in these systems, and stepwise decision support models have been developed. The decision-making scheme is that cybernetic components make their decisions first, and if they cannot do this, they ask humans for help. The stepwise models support the decisions made by components of socio-cyber-physical systems at the conventional stages of the decision-making process: situation awareness, problem identification, development of alternatives, choice of a preferred alternative, and decision implementation. The application of the developed models is illustrated through a scenario for planning the execution of a common task for robots.Practical relevance: The developed models enable you to design plans on solving tasks common for system components or on achievement of common goals, and to implement these plans. The models contribute to overcoming the consequences of the emergent behavior of socio-cyber-physical systems, and to the research on machine learning and mobile robot control.


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