Next Article in Journal
Does RAIM with Correct Exclusion Produce Unbiased Positions?
Previous Article in Journal
Novel Gas Sensor Arrays Based on High-Q SAM-Modified Piezotransduced Single-Crystal Silicon Bulk Acoustic Resonators
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(7), 1504; doi:10.3390/s17071504

Novel Hybrid Scheduling Technique for Sensor Nodes with Mixed Criticality Tasks

1
Department of Computers and Information Technology, Politehnica University of Timisoara, V. Parvan No. 2, Timisoara 300223, Romania
2
Department of Automation and Applied Informatics, Politehnica University of Timisoara, V. Parvan No. 2, Timisoara 300223, Romania
*
Author to whom correspondence should be addressed.
Received: 23 May 2017 / Revised: 8 June 2017 / Accepted: 22 June 2017 / Published: 26 June 2017
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [3182 KB, uploaded 27 June 2017]   |  

Abstract

Sensor networks become increasingly a key technology for complex control applications. Their potential use in safety- and time-critical domains has raised the need for task scheduling mechanisms specially adapted to sensor node specific requirements, often materialized in predictable jitter-less execution of tasks characterized by different criticality levels. This paper offers an efficient scheduling solution, named Hybrid Hard Real-Time Scheduling (H2RTS), which combines a static, clock driven method with a dynamic, event driven scheduling technique, in order to provide high execution predictability, while keeping a high node Central Processing Unit (CPU) utilization factor. From the detailed, integrated schedulability analysis of the H2RTS, a set of sufficiency tests are introduced and demonstrated based on the processor demand and linear upper bound metrics. The performance and correct behavior of the proposed hybrid scheduling technique have been extensively evaluated and validated both on a simulator and on a sensor mote equipped with ARM7 microcontroller. View Full-Text
Keywords: real-time scheduling; control system; hard real-time system; mixed-criticality system; hybrid scheduling; schedulability analysis real-time scheduling; control system; hard real-time system; mixed-criticality system; hybrid scheduling; schedulability analysis
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Micea, M.-V.; Stangaciu, C.-S.; Stangaciu, V.; Curiac, D.-I. Novel Hybrid Scheduling Technique for Sensor Nodes with Mixed Criticality Tasks. Sensors 2017, 17, 1504.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top