基于WIFI的阵列式表面肌电信号采集与传输
发布时间：2018-07-25 13:19
【摘要】：表面肌电信号(Surface Electromyography, SEMG)是神经肌肉系统的生物电变化在皮肤表面加以引导,放大记录和显示得到的一维时间序列信号。SEMG信号能够反映神经系统控制和肌肉运动之间的关系,而且具有检测无创性的优点,因此其在疾病诊断、运动医学、假肢控制等医疗康复领域以及遥控机器人、虚拟现实、手势识别等人机交互领域都具有广泛的应用。 本文在研究了国内外表面肌电信号采集系统以及传感网络无线通信技术的基础上,结合项目实际需求,围绕多通道信号的采集与传输工作,设计了一套以WIFI高速无线传输技术为基础的阵列式表面肌电信号采集与传输系统。为保证系统数据采集的一致性与同步性,克服系统大量数据的传输难点问题,本文提出了一种由数据采集节点,数据汇聚中心以及上位机客户端组成的,将有线无线网络相结合的数据采集传输网络(CSN-WIFI),同时针对网络特点设计了严格同步、实时快速的数据传输协议,其中包括时间同步机制,管道数据聚合技术等,并详细介绍了不同采集节点之间的同步方法,分析了数据聚合周期对传输网络吞吐量,时延,丢包率以及系统能耗等方面的影响。实验研究结果表明,整个系统能够同时对128通道的人体前臂表面肌电信号进行采集,并实现了信号数据基于TCP/IP协议的无线实时传输,整个传输网络的吞吐率达到2Mbps,时延小于0.1s,丢包率小于1%,为基于表面肌电信号的新一代人机交互方式的研究打下基础。
[Abstract]:Surface EMG signal (Surface Electromyography, SEMG) is the bioelectric change of neuromuscular system which is guided by the skin surface. The one dimensional time series signal. SEMG signal can reflect the relationship between nervous system control and muscle movement. And it has the advantages of non-invasive detection, so it has a wide range of applications in the field of medical rehabilitation, such as disease diagnosis, sports medicine, prosthetic control, remote control robot, virtual reality, gesture recognition and other human-computer interaction fields. Based on the research of surface EMG signal acquisition system and wireless communication technology of sensor network at home and abroad, this paper focuses on the acquisition and transmission of multi-channel signals according to the actual requirements of the project. An array surface electromyography (EMG) acquisition and transmission system based on WIFI high speed wireless transmission technology is designed. In order to ensure the consistency and synchronicity of the system data collection, and overcome the difficult problem of the system's massive data transmission, this paper proposes a kind of data acquisition node, data gathering center and the upper computer client, which is composed of the data collection node, the data gathering center and the upper computer client. The data acquisition and transmission network (CSN-WIFI), which combines the wired wireless network, and designs the strict synchronization, real-time and fast data transmission protocol according to the characteristics of the network, including time synchronization mechanism, pipeline data aggregation technology and so on. The synchronization methods between different collection nodes are introduced in detail. The effects of data aggregation cycle on the throughput, delay, packet loss rate and system energy consumption of the transmission network are analyzed. The experimental results show that the whole system can simultaneously collect 128-channel EMG signals on the forearm surface of human body, and realize the wireless real-time transmission of signal data based on TCP/IP protocol. The throughput of the whole transmission network is 2 Mbpss, the delay is less than 0.1 s, and the packet loss rate is less than 1, which lays the foundation for the research of a new generation of man-machine interaction based on surface EMG signal.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP274.2;TN92
本文编号：2143947
[Abstract]:Surface EMG signal (Surface Electromyography, SEMG) is the bioelectric change of neuromuscular system which is guided by the skin surface. The one dimensional time series signal. SEMG signal can reflect the relationship between nervous system control and muscle movement. And it has the advantages of non-invasive detection, so it has a wide range of applications in the field of medical rehabilitation, such as disease diagnosis, sports medicine, prosthetic control, remote control robot, virtual reality, gesture recognition and other human-computer interaction fields. Based on the research of surface EMG signal acquisition system and wireless communication technology of sensor network at home and abroad, this paper focuses on the acquisition and transmission of multi-channel signals according to the actual requirements of the project. An array surface electromyography (EMG) acquisition and transmission system based on WIFI high speed wireless transmission technology is designed. In order to ensure the consistency and synchronicity of the system data collection, and overcome the difficult problem of the system's massive data transmission, this paper proposes a kind of data acquisition node, data gathering center and the upper computer client, which is composed of the data collection node, the data gathering center and the upper computer client. The data acquisition and transmission network (CSN-WIFI), which combines the wired wireless network, and designs the strict synchronization, real-time and fast data transmission protocol according to the characteristics of the network, including time synchronization mechanism, pipeline data aggregation technology and so on. The synchronization methods between different collection nodes are introduced in detail. The effects of data aggregation cycle on the throughput, delay, packet loss rate and system energy consumption of the transmission network are analyzed. The experimental results show that the whole system can simultaneously collect 128-channel EMG signals on the forearm surface of human body, and realize the wireless real-time transmission of signal data based on TCP/IP protocol. The throughput of the whole transmission network is 2 Mbpss, the delay is less than 0.1 s, and the packet loss rate is less than 1, which lays the foundation for the research of a new generation of man-machine interaction based on surface EMG signal.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP274.2;TN92
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