Clock synchronization algorithms on a software defined can controller: implementation and evaluation

Download

index.pdf

Date

2020

Author

Yalçın, Serkan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

390
views

162
downloads

Many advanced driver-assistance systems (ADAS) and in-vehicle applications require coordination for their safety-critical tasks. To achieve such a coordination, different electronic control units (ECUs) in the system should synchronize their clocks in order to share a global time. Although the controller area network (CAN) is the most widely used communication bus for the information exchange among ECUs, it does not support the required clock synchronization. Moreover, even several advanced clock synchronization methods for CAN have been suggested in the literature, they require modifications of the CAN driver, which is generally implemented in hardware and not accessible to modifications. The first aim of this thesis is the implementation of a software-defined CAN controller (SDCC) which enables modifications to the standard CAN driver. This SDCC is compatible to standard CAN controllers. The second aim of the thesis is the realization of new clock synchronization algorithms for CAN based on the SDCC including modifications to the classical CAN driver. The performance of the new algorithms is evaluated and compared to existing clock synchronization algorithms for CAN.

Subject Keywords

Controller Area Network (Computer network)., Controller Area Network, Clock Synchronization, Software-Defined Controller

URI

http://etd.lib.metu.edu.tr/upload/12625318/index.pdf
https://hdl.handle.net/11511/45570

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Improved clock synchronization algorithms for the Controller Area Network (CAN) Akpinar, Murat; Schmidt, Klaus Verner; Schmidt, Şenan Ece (2019-01-01) Safety-critical in-vehicle applications require an accurate global time in order to coordinate their actions. Although Controller Area Network (CAN) is the most widely used in-vehicle communication bus, it does not support synchronized clocks. Hence, the realization of clock synchronization on CAN is highly relevant. This paper develops two new ideas for the clock synchronization on CAN. The first contribution is a new software-based algorithm based on periodic reference messages. Different from existing al...
Highly Accurate Clock Synchronization With Drift Correction for the Controller Area Network Akpinar, Murat; Schmidt, Şenan Ece; Schmidt, Klaus Verner (2022-12-01) Modem vehicles, that have to be considered as safety-critical cyber-physical systems, require highly accurate clock synchronization (CS) among their distributed computing devices. Since Controller Area Network (CAN) is the predominant in-vehicle communication bus, it is highly relevant to support CS for CAN. This article proposes an original CS method for distributed in-vehicle networks based on CAN with both offset and drift correction. While offset correction is performed based on timestamps in periodic r...
DroPPPP: A P4 Approach to Mitigating DoS Attacks in SDN Simsek, Goksel; Bostan, Hakan; Sarica, Alper Kaan; Sarikaya, Egemen; KELEŞ, AHMET; Angın, Pelin; Alemdar, Hande; Onur, Ertan (2020-01-01) Software-Defined Networking (SDN) has proven itself a useful technology for establishing and managing configurable, dynamic networks with the rapid deployment of services in the past decade. Despite these advantages, the fact that the functionality of SDN relies heavily on the controller with a much less capable data plane creates a single point of failure, which leaves the network susceptible to denial of service (DoS) attacks mainly targeting the controller to affect the operation of the whole network. An...
Controller area network with offset scheduling: improved offset assignment algorithms and computation of response time distributions Batur, Ahmet; Schmidt, Klaus Werner; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2018) The Controller Area Network (CAN) is the most widely-used in-vehicle communication bus in the automotive industry. CAN enables the exchange of data among different electronic control units (ECUs) of a vehicle via messages. The basic requirement for the design of CAN is to guarantee that the worst-case response time (WCRT) of each message is smaller than its specified deadline. Hereby, it is generally desired to achieve small WCRTs that leave sufficient slack to the message deadline. In addition, it has to b...
Automated integration of real-time and non-real-time defense systems Dalkiran, Emre; Onel, Tolga; Oğuztüzün, Mehmet Halit S.; Demir, Kadir Alpaslan (2021-04-01) Various application domains require the integration of distributed real-time or near-real-time systems with non-real-time systems. Smart cities, smart homes, ambient intelligent systems, or network-centric defense systems are among these application domains. Data Distribution Service (DDS) is a communi-cation mechanism based on Data-Centric Publish-Subscribe (DCPS) model. It is used for distributed systems with real-time operational constraints. Java Message Service (JMS) is a messaging standard for enterpr...

Citation Formats

S. Yalçın, “Clock synchronization algorithms on a software defined can controller: implementation and evaluation,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Electrical and Electronics Engineering., Middle East Technical University, 2020.