基于DSP和双目视觉的多媒体传感器网络节点设计与实现

doi:10.3969/j.issn.1000-436x.2014.12.025

摘要/Abstract

摘要：

针对无线传感器网络对于多媒体信息获取的实际需求，以高性能DSP处理器为核心，结合ZigBee无线通信，设计实现了新型多媒体无线传感器节点。借助DSP的强大运算能力和外设接口，在多媒体节点上配置了双目摄像机、加速度计等传感器，实现了环境信息和图像数据的实时感知与获取，并依托 ZigBee 协议形成了室内环境短距无线通信与监测能力。实验结果表明，所设计的多媒体传感器节点能够准确、实时地进行综合感知数据的获取与处理，满足无线多媒体传感器网络的应用需求。

关键词: 传感器网络, 多媒体节点, DSP处理器, ZigBee通信, 双目视觉

Abstract:

In order to meet the requirement of multimedia information acquisition in wireless sensor network,a new wire-less multimedia sensor node is designed and implemented with the high-performance DSP processor as the core.ZigBee module is used to implement the wireless communication.In virtue of the powerful computing ability and peripheral in-terfaces of DSP processor,the multimedia node owns binocular vision and various sensors such as accelerometer.There-fore,it can attain the real-time perception of environmental information and acquire image/video data.Based on the Zig-Bee protocol,the sensor is able to fulfill short-distance wireless communication and monitoring duty in indoor environ-ment.Experimental results show that the multimedia sensor node designed can accurately obtain and handle the syntheti-cal sensing data in real time.It is suitable for the application of wireless multimedia sensor network.

Key words: sensor network, multimedia node, DSP processor, ZigBee communication, binocular vision

张云洲,蒋培,高亮,李立强. 基于DSP和双目视觉的多媒体传感器网络节点设计与实现[J]. 通信学报, 2014, 35(12): 210-216.

Yun-zhou ZHANG,Pei JIANG,Liang GAO,Li-qiang LI. Design and implementation of wireless multimedia sensor network node based on DSP and binocular vision[J]. Journal on Communications, 2014, 35(12): 210-216.

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节点名称	主处理器(主频)	图像感知	图像分辨率	无线芯片(技术)	性能/特征
CMU cam3	MSP430(25 MHz)	单目视觉	352×288	CC2420(ZigBee)	低功耗，帧率26 帧/s
Imote2	PXA270(520 MHz)	单目视觉	640×480	CC2420(ZigBee)	音视频处理，计算速度快
Stargate	PXA255(400 MHz)	单目视觉	640×480	802.11b蓝牙	音视频处理，计算速度快
Uamps-2	TMS320C55XX(200 MHz)	单目视觉	640×480	802.11b/UWB	音视频处理，计算速度较快
Panopts	Strong ARM(206 MHz)	单目视觉	320×240	802.11/蓝牙	视频获取及处理
UbiCell	SoC2440(400 MHz)	单目视觉	640×480	CC2420(Zigbee)	单帧图像获取及处理
NeuWMSN	TMS320DM642(600 MHz)	双目视觉	640×480	CC2530(Zigbee)	立体视觉，计算速度快

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