论文标题
Zydeco风格的Spike对物联网BCI植入物的低功率VLSI体系结构排序
Zydeco-Style Spike Sorting Low Power VLSI Architecture for IoT BCI Implants
论文作者
论文摘要
大脑计算机界面(BCI)具有解决许多大脑信号分析局限性,精神障碍分辨率以及通过神经控制的植入物恢复缺失的肢体功能的巨大潜力。但是,尚无单一可用,并且存在安全的日常生活使用情况。大多数拟议的植入物都有多个实施问题,例如感染危害和散热,这限制了它们的可用性,并使通过法规和质量控制生产更具挑战性。无线植入物不需要颅骨慢性伤口。但是,当前植入物芯片内部的复杂聚类神经元识别算法消耗了很多功率和带宽,从而导致更高的散热问题并排出植入物的电池。尖峰排序是侵入性BCI芯片的核心单位,在功耗,准确性和区域中起着重要作用。因此,在这项研究中,我们提出了一个低功率自适应的简化VLSI体系结构“ Zydeco风格”,用于BCI Spike Sorting,在最差的情况下,计算上的复杂性较小,精度较高,高达93.5%。该体系结构使用与外部物联网医疗ICU设备的低功耗蓝牙无线通信模块。在Verilog中实现并模拟了所提出的架构。此外,我们正在提出植入概念设计。
Brain Computer Interface (BCI) has great potential for solving many brain signal analysis limitations, mental disorder resolutions, and restoring missing limb functionality via neural-controlled implants. However, there is no single available, and safe implant for daily life usage exists yet. Most of the proposed implants have several implementation issues, such as infection hazards and heat dissipation, which limits their usability and makes it more challenging to pass regulations and quality control production. The wireless implant does not require a chronic wound in the skull. However, the current complex clustering neuron identification algorithms inside the implant chip consume a lot of power and bandwidth, causing higher heat dissipation issues and draining the implant's battery. The spike sorting is the core unit of an invasive BCI chip, which plays a significant role in power consumption, accuracy, and area. Therefore, in this study, we propose a low-power adaptive simplified VLSI architecture, "Zydeco-Style," for BCI spike sorting that is computationally less complex with higher accuracy that performs up to 93.5% in the worst-case scenario. The architecture uses a low-power Bluetooth Wireless communication module with external IoT medical ICU devices. The proposed architecture was implemented and simulated in Verilog. In addition, we are proposing an implant conceptual design.