基于DSP和双目视觉的多媒体传感器网络节点设计与实现

Design and implementation of wireless multimedia sensor network node based on DSP and binocular vision

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。

In order to meet the requirement of multimedia information acquisition in wireless sensor network,a new wireless 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 interfaces of DSP processor,the multimedia node owns binocular vision and various sensors such as accelerometer.Therefore,it can attain the real-time perception of environmental information and acquire image/video data.Based on the ZigBee protocol,the sensor is able to fulfill short-distance wireless communication and monitoring duty in indoor environment.Experimental results show that the multimedia sensor node designed can accurately obtain and handle the synthetical sensing data in real time.It is suitable for the application of wireless multimedia sensor network.