Architecture Exploration Based on Tasks Partitioning Between Hardware, Software and Locality for a Wireless Vision Sensor Node

Architecture Exploration Based on Tasks Partitioning Between Hardware, Software and Locality for a Wireless Vision Sensor Node

Muhammad Imran (Mid Sweden University, Sweden), Khursheed Khursheed (Mid Sweden University, Sweden), Abdul Waheed Malik (Mid Sweden University, Sweden), Naeem Ahmad (Mid Sweden University, Sweden), Mattias O’Nils (Mid Sweden University, Sweden), Najeem Lawal (Mid Sweden University, Sweden) and Benny Thörnberg (Mid Sweden University, Sweden)
Copyright: © 2012 |Pages: 14
DOI: 10.4018/jdst.2012040104
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Abstract

Wireless Vision Sensor Networks (WVSNs) is an emerging field which consists of a number of Visual Sensor Nodes (VSNs). Compared to traditional sensor networks, WVSNs operates on two dimensional data, which requires high bandwidth and high energy consumption. In order to minimize the energy consumption, the focus is on finding energy efficient and programmable architectures for the VSN by partitioning the vision tasks among hardware (FPGA), software (Micro-controller) and locality (sensor node or server). The energy consumption, cost and design time of different processing strategies is analyzed for the implementation of VSN. Moreover, the processing energy and communication energy consumption of VSN is investigated in order to maximize the lifetime. Results show that by introducing a reconfigurable platform such as FPGA with small static power consumption and by transmitting the compressed images after pixel based tasks from the VSN results in longer battery lifetime for the VSN.
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WVSNs have been designed and implemented on software and on hardware platform. Often software solutions have small design time as many mature vision processing libraries are available for implementation.

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