An End-to-end communication architecture for intelligent transportation systems: design, implementation and latency analysis

2018
Bağcı, Çağatay
Show full item record
204
views
0
downloads
Vehicle to anything (V2X) communication is a very significant component of Intelligent Transport Systems (ITS) applications. This thesis proposes an application layer communication architecture, ITSVeCon for V2X communications which enables communication among the end-hosts which can be vehicle Electronic Control Units (ECU)’s, Road Side Units (RSU)s, computers, smart phones or third party service providers. All these end-hosts are bi-directionally connected to the ITSVeCon Server where this server carries out application layer switching realizing unicast or multicast communication. The architecture consists of a layered software and network protocol stack with message formats and rules, which are implemented in the end-hosts and the ITSVeCon server. To this end, this thesis presents the ITSVeCon realization on the vehicle On Board Unit (OBU) and the ITSVeCon server. The OBU realization further fulfills the gateway functionality between the in-vehicle CAN network and the Internet. The ITSVeCon implementation features WebSockets carrying messages in JSON format, Publish and Subscribe pattern and NTP synchronization to enable V2X communications for real time ITS applications. To this end, the proposed architecture allows the seamless running on different ITS applications on different types of host devices. This thesis proposes the cellular communications as the wireless communication technology for the vehicle. To this end, the end-to-end communication path in ITSVeCon consists of cellular access and IP core network over multiple nodes and network segments. A very important contribution of the thesis is the measurement set-up, detailed experiment scenarios and measurement results of the end-to-end delay components. The measured end to end delay values are close to 100 ms with embedded component delays under 4 ms and large cellular network access delay under 3G network. Hence, a complementary short range wireless interface is proposed in this thesis as the second option to improve communication and functional tests of this option is carried out. With the improvements in technology, around 10 ms end to end delay value can be achieved with 4G and 1 ms end to end delay value is expected to be accomplished with 5G.
Intelligent transportation systems., Electronics in transportation.
http://etd.lib.metu.edu.tr/upload/12621907/index.pdf
https://hdl.handle.net/11511/27196
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

A Generic and extendable system architecture for intelligent transportation systems /
Çetinkaya, Kaan; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2015)
Intelligent Transportation Systems (ITS) are distributed systems with different communicating parties which are vehicles with ITS-supporting On Board Units (OBUs), Road Side Units (RSU) and user mobile devices. These parties collectively run application services that are developed and managed by different application service providers by communicating among each other under certain timing constraints. In the current state of art, hardware, software and communications that are required to implement a given I...
An algorithm for multiscale license plate detection and rule-based character segmentation
Karalı, Ali Onur; Ulusoy, İlkay; Department of Electrical and Electronics Engineering (2011)
License plate recognition (LPR) technology has great importance for the development of Intelligent Transportation Systems by automatically identifying the vehicles using image processing and pattern recognition techniques. Conventional LPR systems consist of license plate detection (LPD), character segmentation (CS) and character recognition (CR) steps. Successful detection of license plate and character locations have vital role for proper LPR. Most LPD and CS techniques in the literature assume fixed dist...
A communication architecture for Intelligent Transportation Applications
Bağcı, Çağatay; Schmidt, Şenan Ece (2017-06-29)
This paper proposes ITCON (ITS CONnectivity) which is based on communication of the end systems running Intelligent Transportation Applications over a remote server that. performs application level switching. ITCON provides seamless connectivity for different types of devices using WebSocket structures. ITCON is implemented for vehicle to vehicle applications that access the IP Core networks over cellular mobile networks. Detailed timing performance evaluations are presented.
Automatic license plate recognition system location selection
Gör, Buğra; Karakaya, Gülşah; Department of Business Administration (2018)
With the help of advancements on sensor and data transfer technologies, the usage area of Automatic License Plate Recognition (ALPR) Systems has been enlarged. Both public and private sectors implement ALPR applications for their respective needs. Public safety ALPR applications aim to monitor and control traffic data at both individual and collective levels. For this reason, to build an efficient sensor network number and location of ALPR systems should be determined optimally. This study focuses on determ...
Planning for a successful development of intelligent transportation systems (ITS) in Turkey
Dündar, Selim; Tüydeş Yaman, Hediye; İpekyüz, Beyhan; Karataş Sevinen, Pınar; Hüner, Egecan Emre; Evren, Güngör (2018-04-26)
Since 1990s, Intelligent Transportation Systems (ITS) has been an area of research and implementation following the rapid development in communication and computational fields of research, which has always taken advantage of advances to promote mobility, efficiency and safety in transportation systems. The last two decades ofexperience in mostly the developed countries, the accumulation of knowledge and experience on ITS enabled the discussions on how to evaluate ...
Citation Formats
Ç. Bağcı, “An End-to-end communication architecture for intelligent transportation systems: design, implementation and latency analysis,” M.S. - Master of Science, Middle East Technical University, 2018.
METU IIS - Integrated Information Service open@metu.edu.tr