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Chisalita, Ioan
Publications (10 of 16) Show all publications
Shahmehri, N., Chisalita, I. & Åberg, J. (2008). People with Special Needs and Traffic Safety (1ed.). In: Abdelsalam (Sumi) Helal, Mounir Mokhtari, Bessam Abdulrazak (Ed.), The Engineering Handbook of Smart Technology for Aging, Disability and Independence: . USA: Wiley
Open this publication in new window or tab >>People with Special Needs and Traffic Safety
2008 (English)In: The Engineering Handbook of Smart Technology for Aging, Disability and Independence / [ed] Abdelsalam (Sumi) Helal, Mounir Mokhtari, Bessam Abdulrazak, USA: Wiley , 2008, 1, p. -944Chapter in book (Other academic)
Abstract [en]

An advanced look at smart technology to promote the independence of the elderly and disabled

Ongoing research and advancements in technology are essential for the continuing independence of elderly and disabled persons. The Engineering Handbook of Smart Technology for Aging, Disability, and Independenceprovides a thorough analysis of these technologies and the needs of the elderly and disabled, including a breakdown of demographics, government spending, growth rate, and much more.

Each chapter is written by an expert in his or her respective field, and gives readers unparalleled insight into the research and developments in a multitude of important areas, including:

  • User-need analyses, classifications, and policies
  • Assistive devices and systems for people with motor disabilities
  • Assistive devices and systems for people with visual and hearing impairments
  • Human-machine interaction and virtual reality
  • Assistive robotics
  • Technology for user mobility and object manipulation
  • Smart homes as assistant environments
  • A discussion of emerging standards and guidelines to build accessible devices, tools, and environments

This book is an indispensable resource for researchers and professionals in computer science, rehabilitation science, and clinical engineering. It also serves as a valuable textbook for graduate students in the aforementioned fields.

Place, publisher, year, edition, pages
USA: Wiley, 2008 Edition: 1
Keywords
Smart Technology, Vehiclular Communication, Traffic Safety, Elderly
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-43675 (URN)10.1002/9780470379424 (DOI)74513 (Local ID)978-0-471-71155-1 (ISBN)047-17-1155-1 (ISBN)74513 (Archive number)74513 (OAI)
Note

Chapter 24

Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2018-01-12Bibliographically approved
Chisalita, I. & Shahmehri, N. (2007). On the design of safety communication systems for vehicles. IEEE transactions on systems, man and cybernetics. Part A. Systems and humans, 37(6), 933-945
Open this publication in new window or tab >>On the design of safety communication systems for vehicles
2007 (English)In: IEEE transactions on systems, man and cybernetics. Part A. Systems and humans, ISSN 1083-4427, E-ISSN 1558-2426, Vol. 37, no 6, p. 933-945Article in journal (Refereed) Published
Abstract [en]

Statistics show that the number of casualties due to traffic accidents exceeds one million each year. For the development of systems that prevent vehicle collisions, vehicular communication is considered a promising technology. This paper focuses on design aspects of communication systems that support the development of collaborative active safety systems such as collision warning and collision avoidance. We introduce a design method for safety communication systems that includes a set of analyses and a reasoning system for modeling and analyzing traffic scenarios. An overview of a specific solution for communication is presented in this paper. This solution proposes techniques for network organization and data dissemination that make use of contextual information. This allows the development of a communication system that is adaptable to the specifics of the traffic situation. © 2007 IEEE.

National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-34441 (URN)10.1109/TSMCA.2007.897586 (DOI)21469 (Local ID)21469 (Archive number)21469 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2018-01-13
Chisalita, I. & Shahmehri, N. (2006). Adaptive dissemination of safety data among moving vehicles. In: 17th IEEE Personal, Indoor and Mobile Radio Communication Symposium,2006: . Paper presented at 17th IEEE Personal, Indoor and Mobile Radio Communication Symposium,2006. Helsinki, Finland: IEEE
Open this publication in new window or tab >>Adaptive dissemination of safety data among moving vehicles
2006 (English)In: 17th IEEE Personal, Indoor and Mobile Radio Communication Symposium,2006, Helsinki, Finland: IEEE , 2006Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Helsinki, Finland: IEEE, 2006
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-34442 (URN)21470 (Local ID)21470 (Archive number)21470 (OAI)
Conference
17th IEEE Personal, Indoor and Mobile Radio Communication Symposium,2006
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2018-01-13
Chisalita, I. (2006). Communication and Networking Techniques for Traffic Safety Systems. (Doctoral dissertation). : Institutionen för datavetenskap
Open this publication in new window or tab >>Communication and Networking Techniques for Traffic Safety Systems
2006 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

Accident statistics indicate that every year a significant number of casualties and extensive property losses occur due to traffic accidents. Consequently, efforts are directed towards developing passive and active safety systems that help reduce the severity of crashes, or prevent vehicles from colliding with one another. To develop these systems, technologies such as sensor systems, computer vision and vehicular communication have been proposed. Safety vehicular communication is defined as the exchange of data between vehicles with the goal of providing in-vehicle safety systems with enough information to permit detection of traffic dangers. Inter-vehicle communication is a key safety technology, especially as a complement to other technologies such as radar, as the information it provides cannot be gathered in any other way. However, due to the specifics of the traffic environment, the design of efficient safety communication systems poses a series of major technical challenges.

In this thesis we focus on the design and development of a safety communication system that provides support for active safety systems such as collision warning and collision avoidance. We begin by providing a method for designing the support system for active safety systems. Within our study, we investigate different safety aspects of traffic situations. For performing traffic investigations, we have developed ECAM, a temporal reasoning system for modeling and analyzing accident scenarios.

Next, we focus on the communication system design. We investigate approaches that can be applied to implement safety vehicular communication, as well as design aspects of such systems, including networking techniques and transmission procedures. We then propose a new solution for vehicular communication in the form of a distributed communication protocol that allows the vehicles to organize themselves in virtual clusters according to their common interest in traffic safety. To disseminate the information used for organizing the network and for assessing dangers in traffic, we develop an anonymous context-based broadcast protocol. This protocol requires the receivers to determine whether they are the intended destination for sent messages based on knowledge about their current situation in traffic. This communication system is then augmented with a reactive operation mode, where warnings can be issued and forwarded by vehicles. A vehicular communication platform that provides an implementation framework for the communication system, and integrates it within a vehicle, is also proposed. Experiments have been conducted, under various conditions, to test communication performance and the system’s ability to reduce accidents. The results indicate that that the proposed communication system can efficiently provide the exchange of safety information between vehicles.

Place, publisher, year, edition, pages
Institutionen för datavetenskap, 2006. p. 177
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1018
Keywords
Vehicular communication, networkking, safety-data
National Category
Telecommunications
Identifiers
urn:nbn:se:liu:diva-7282 (URN)91-85523-77-1 (ISBN)
Public defence
2006-06-02, Visionen, Hus B, Campus Valla, Linköpings universitet, Linköping, 10:15 (English)
Opponent
Supervisors
Available from: 2006-09-06 Created: 2006-09-06
Chisalita, I. & Shahmehri, N. (2006). Emergency information dissemination in mobile networks for vehicles. In: International Conference on Wireless Information Networks and Systems, part of the 3rd International Joint Conference on e-Business and Telecommunications,2006: . Paper presented at International Conference on Wireless Information Networks and Systems, part of the 3rd International Joint Conference on e-Business and Telecommunications,2006. Setubal, Portugal: WINSYS/ICETE
Open this publication in new window or tab >>Emergency information dissemination in mobile networks for vehicles
2006 (English)In: International Conference on Wireless Information Networks and Systems, part of the 3rd International Joint Conference on e-Business and Telecommunications,2006, Setubal, Portugal: WINSYS/ICETE , 2006Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Setubal, Portugal: WINSYS/ICETE, 2006
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-34444 (URN)21472 (Local ID)21472 (Archive number)21472 (OAI)
Conference
International Conference on Wireless Information Networks and Systems, part of the 3rd International Joint Conference on e-Business and Telecommunications,2006
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2018-01-13
Chisalita, I. & Shahmehri, N. (2006). Performance evaluation of safety communication for vehicles. In: 3rd International Symposium on Wireless Information Systems,2006: . Paper presented at 3rd International Symposium on Wireless Information Systems,2006. Valencia, Spain: ISWCS/ IEEE
Open this publication in new window or tab >>Performance evaluation of safety communication for vehicles
2006 (English)In: 3rd International Symposium on Wireless Information Systems,2006, Valencia, Spain: ISWCS/ IEEE , 2006Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Valencia, Spain: ISWCS/ IEEE, 2006
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-34443 (URN)21471 (Local ID)21471 (Archive number)21471 (OAI)
Conference
3rd International Symposium on Wireless Information Systems,2006
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2018-01-13
Chisalita, I. & Shahmehri, N. (2004). A context-based vehicular communication protocol. In: IEEE Personal, Indoor and Mobile Radio Communication Symposium,2004 (pp. 2820). Barcelona, Spain: IEEE PIMRC
Open this publication in new window or tab >>A context-based vehicular communication protocol
2004 (English)In: IEEE Personal, Indoor and Mobile Radio Communication Symposium,2004, Barcelona, Spain: IEEE PIMRC , 2004, p. 2820-Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Barcelona, Spain: IEEE PIMRC, 2004
Keywords
vehicular communication, traffic safety, ad-hoc network
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-22806 (URN)2143 (Local ID)2143 (Archive number)2143 (OAI)
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2018-01-13
Shahmehri, N., Åberg, J., Maciuszek, D. & Chisalita, I. (2004). Linköping University's Virtual Companion project. IEEE pervasive computing, 3(2), 50-50
Open this publication in new window or tab >>Linköping University's Virtual Companion project
2004 (Swedish)In: IEEE pervasive computing, ISSN 1536-1268, E-ISSN 1558-2590, Vol. 3, no 2, p. 50-50Article in journal (Other academic) Published
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-22525 (URN)1785 (Local ID)1785 (Archive number)1785 (OAI)
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2018-01-13
Chisalita, I. (2004). Safety-oriented communication in mobile networks for vehicles. (Licentiate dissertation). Linköping: Linköpings universitet
Open this publication in new window or tab >>Safety-oriented communication in mobile networks for vehicles
2004 (English)Licentiate thesis, monograph (Other academic)
Abstract [en]

Accident statistics indicate that every year a large number of casualties and extensive property losses are recorded due to traffic accidents. Consequently, efforts are directed towards developing passive and active safety systems that help reducing the severity of crashes or prevent vehicles to collide with each other. Within the development of these systems, technologies such as sensor systems, computer vision and vehicular communication are considered of importance. Vehicular communication is defined as the exchange of data between vehicles, and is considered a key technology for traffic safety due to its ability to provide the vehicles with information that cannot be acquired using other means (e.g. radar and video systems). However, due to the current early stage in the development of in-vehicle safety systems, the applicability of communication for improving traffic safety is still an open issue. Furthermore, due to the specificity of the environment in which vehicles travel, the design of communication systems that provide an efficient exchange of safety-related data between vehicles poses a series of major technical challenges.

In this thesis we focus on the development of a communication system that provides support for in-vehicle active safety systems such as collision warning and collision avoidance.

We begin by studying the applicability of communication for supporting the development of effective active safety systems. Within our study, we investigate different safety aspects of traffic situations. For performing such investigations we develop ECAM, a temporal reasoning system for modeling and analyzing accident scenarios. This system gives us the possibility of analyzing relations between events that occur in traffic and their possible consequences. We use ECAM for analyzing the degree of accident prevention that can be achieved by applying crash countermeasures based on communication in specific traffic scenarios.

By acknowledging the potential of communication for traffic safety, we further focus in the thesis on the design of a safety-oriented vehicular communication system. We propose a new solution for vehicular communication in the form of a distributed communication protocol that allows the vehicles to organize the network in an ad-hoc decentralized manner. For disseminating information, we develop an anonymous context-based broadcast protocol that requires the receivers to determine whether they are the intended destination of sent messages based on knowledge about their momentary situation in traffic. We further design a vehicular communication platform that provides an implementation framework for the communication system, and integrates it within a vehicle. Investigations of the communication performances, which evaluate metrics such as transmission delay, send errors, packet collisions and information filtering, indicate that the proposed vehicular communication system is able to provide a reliable and timely exchange of data between vehicles.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2004. p. 140
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1130
Keywords
vehicular communication, active safety systems, collision warning and avoidance, safety-related information
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-22842 (URN)2180 (Local ID)91-85295-85-X (ISBN)2180 (Archive number)2180 (OAI)
Presentation
2004-12-07, Visionen, Hus B, Linköpings Universitet, Linköping, 13:15 (Swedish)
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2018-01-13
Chisalita, I., Shahmehri, N. & Lambrix, P. (2004). Traffic accidents modeling and analysis using temporal reasonin. In: ITSC 2004: 7TH INTERNATIONAL IEEE CONFERENCE ON INTELLIGENT TRANSPORTATION SYSTEMS, PROCEEDINGS: . Paper presented at 7th IEEE International Conference on Intelligent Transportation Systems, Washington, USA (pp. 378-383). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Traffic accidents modeling and analysis using temporal reasonin
2004 (English)In: ITSC 2004: 7TH INTERNATIONAL IEEE CONFERENCE ON INTELLIGENT TRANSPORTATION SYSTEMS, PROCEEDINGS, Institute of Electrical and Electronics Engineers (IEEE), 2004, p. 378-383Conference paper, Published paper (Refereed)
Abstract [en]

Traffic accidents account for more than half a million casualties every year. The analysis of accidents helps identifying the elements that affect traffic conditions, the relationships between them, and how they may contribute to the occurrence of dangerous situations. In this paper we present a temporal reasoning system for modeling and analyzing various types of accident scenarios. The system is based on Event Calculus and was implemented using Prolog. We exemplify the use of the system by applying it for modeling and analyzing a rear-end accident scenario.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2004
Keywords
temporal reasoning, accident modeling, active safety systems
National Category
Computer Sciences
Identifiers
urn:nbn:se:liu:diva-22805 (URN)10.1109/ITSC.2004.1398928 (DOI)000225223000067 ()2142 (Local ID)0780385004 (ISBN)2142 (Archive number)2142 (OAI)
Conference
7th IEEE International Conference on Intelligent Transportation Systems, Washington, USA
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2018-01-13Bibliographically approved
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