A Wearable Bio-signal Processing System with Ultra-low-power SoC and Collaborative Neural Network Classifier for Low Dimensional Data Communication

A Wearable Bio-signal Processing System with Ultra-low-power SoC and Collaborative Neural Network Classifier for Low Dimensional Data Communication
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具有超低功耗 SoC 和用于低维数据通信的协作神经网络分类器的可穿戴生物信号处理系统

DOI:
10.1109/embc44109.2020.9176647
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发表时间:
2020
期刊:
Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC
影响因子:
--
通讯作者:
Gu, Jie
Gu, Jie
中科院分区:
--
文献类型:
--
作者:
Wei, Yijie;Cao, Qiankai;Hargrove, Levi;Gu, Jie

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提出了一种集成超低功耗协作式神经网络分类器的实时生理信号分类系统。开发的系统包括专门设计的片上系统(SoC)和无线通信模块,该模块将分类结果传输到智能手机应用程序,作为实时培训的方便用户界面。定制的SoC提供超低功耗和低延迟的生理信号感知和分类,如肌电和心电。实现了一种特殊的协作式神经网络分类器,允许多个芯片协作进行分类。因此,只有低维数据通过网络传输,大大减少了跨多个模块的数据通信。基于EMG的手势分类演示表明,与传统的嵌入式解决方案相比,所开发的SoC的功耗降低了1100倍。仅传输来自协作神经网络分类器的低维数据导致多个传感CITE的数据通信和相关能量减少到原来的1/50。
In this paper, a real time physiological signal classification system with an integrated ultra-low power collaborative neural network classifier is presented. The developed system includes a specially designed system-on-chip (SoC) and a wireless communication module that transmits classification results to a smartphone app as a convenient user interface in real-time training. The customized SoC provides ultra-low-power and low-latency sensing and classification on physiological signals, e.g. EMG and ECG. A special collaborative neural network classifier was implemented to allow multiple chips to collaborate on classification. As a result, only low dimensional data is being transmitted over the network, significantly reducing data communication across multiple modules. A demonstration of EMG based gesture classification shows 1100X less power consumption from the developed SoC compared with conventional embedded solutions. The transmission of only low dimensional data from the collaborative neural network classifier leads to a 50X reduction of data communication and associated energy for multiple sensing cites.
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