|Table of Contents|

Design of tanker sensor node based on WSN and improvement of TinyOS tasks scheduling(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年04期
Page:
87-93
Research Field:
Publishing date:
2011-08-20

Info

Title:
Design of tanker sensor node based on WSN and improvement of TinyOS tasks scheduling
Author(s):
HUI Fei;  ZHAO Xiang-mo;  YANG Fei
School of Information Engineering, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
traffic information and control engineering;  WSN;  tanker;  TinyOS;  multi-queue task scheduling strategy
PACS:
U492.22
DOI:
-
Abstract:
For real-time monitoring of temperature, humidity, car body posture, carriage pressure, inlet and outlet mouths oil leaks and other security information while driving oil tank truck, the wireless network node of monitoring tanker security information was designed with ultra-low power of ATmega1281 microcontrollers and AT86RF230 RF modules. To resolve the problem of TinyOS FCFS scheduling strategy which not able to give strong real-time tasks timely response and low message treatment, a multi-task queue scheduling strategy is proposed, which uses grading scheduling for real-time tasks and priority tasks and sets dynamic priority and task overtime interrupts. The algorithm can meet the system's response of real-time and high-priority tasks, make low-priority tasks in appropriate within the time to get scheduling opportunity. The TinyOS test result indicates that the tanker sensor node can realize the real-time monitoring within the 3% increasing of power consumption. 3 tabs, 14 figs, 9 refs.

References:

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Memo

Memo:
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Last Update: 2011-08-20