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Task and Energy-efficient Management in Wireless Sensor Network Operating System

Author: LuRanRan
Tutor: XuGuiPing
School: Huazhong University of Science and Technology
Course: Computer Software and Theory
Keywords: Wireless sensor networks Task Manager of the double-effect Data stream Data Invulnerability polymerization
CLC: TP212.9
Type: Master's thesis
Year: 2007
Downloads: 88
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Abstract


ARTs-SNOS by Huazhong University of Science and Technology the Huaxiang software Laboratory ERTOS project group of independent research and development of a wireless sensor network operating system for high-end distributed wireless sensor networks . This paper aims to the key technology to WSNOS system research and analysis , put forward their point of view , and wireless sensor network operating system of ARTs-SNOS the task with energy efficiency management design and initial realization . ARTs-SNOS including task management , storage management , communications management , and interrupt management module , the hardware development platform EB44b0 development board . ARTs-SNOS ready task queue is divided into priority . Scheduler in accordance with the priority from high to low scheduling level round-robin scheduling algorithm can be configured as a first-come, first-served or time slice . Traditional priority-driven task scheduling strategy will make the system more idle time under full power state , in the study of a typical priority-driven scheduling policy after the double-effect the proposed RMFS with EDFFS task management algorithm can not only satisfy the scheduling and meet energy efficiency. ARTs-SNOS energy efficiency management adopted two strategies , dynamic power management based on task status , the main task set based on the current state of regulation to the CPU power-saving mode . However , the energy consumption is not only associated with the task scheduling , with the reception of the data stream , and send that have close contact , so after the the WSN data flow characteristics , proposed an energy-efficient dynamic data lossless aggregation algorithm DTOA, and to reduce the amount of data transmission to achieve energy-saving purpose . Papers in the study WSN characteristics on the basis of a variety of popular operating system task management technology , efforts to try to meet WSNOS task management and energy efficiency features demand further useful research in this direction , to put forward their point of view , design and preliminary realization ARTs - SNOS .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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