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首页> 外文期刊>International journal of adaptive, resilient, and autonomic systems >An Acoustic-Visual Collaborative Hybrid Architecture for Wireless Multimedia Sensor Networks
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An Acoustic-Visual Collaborative Hybrid Architecture for Wireless Multimedia Sensor Networks

机译：无线多媒体传感器网络的声光协作混合架构

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摘要

Prolongation of the lifetime has become a key challenge in design and implementation of Wireless Multimedia Sensor Networks (WMSNs). The energy consumed in multimedia sensor nodes is much more than in the scalar sensors; a multimedia sensor captures images or acoustic signals containing a huge amount of data while in the scalar sensors a scalar value is measured (e.g., temperature). On the other hand, given the large amount of data generated by the visual nodes, both processing and transmitting image data are quite costly in terms of energy in comparison with other types of sensor networks. Therefore, energy efficiency is a main concern in WMSNs. In this paper an energy efficient collaborative mechanism for monitoring is proposed The proposed scheme employs a mixed random deployment of acoustic and visual sensor nodes. Acoustic sensors detect and localize the occurred event/object(s) in a duty-cycled manner by sampling the received signals and then trigger the visual sensor nodes covering the objects to monitor them. Hence, visual sensors are warily scheduled to be awakened just for monitoring the object(s) detected in their domain, otherwise they save their energy.
机译：寿命的延长已成为无线多媒体传感器网络（WMSN）设计和实施中的关键挑战。多媒体传感器节点中消耗的能量比标量传感器中消耗的能量大得多。多媒体传感器捕获包含大量数据的图像或声音信号，而在标量传感器中测量标量值（例如温度）。另一方面，考虑到可视节点生成的大量数据，与其他类型的传感器网络相比，处理和传输图像数据在能源方面都非常昂贵。因此，能源效率是WMSN中的主要关注点。在本文中，提出了一种用于监视的高效节能协作机制。该方案采用了声音和视觉传感器节点的混合随机部署。声学传感器通过对接收到的信号进行采样，以占空比的方式检测和定位发生的事件/对象，然后触发覆盖对象的视觉传感器节点以对其进行监视。因此，视觉传感器被安排成仅仅为了监视在其范围内检测到的对象而被唤醒，否则节省了能量。

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