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JSSC 2012第1期mm-Wave0.18μm

A7 5 W Real-Time Scalable Body Area Network Controller and a 25 W ExG Sensor IC for Compact Sleep Monitoring Applications Seulki Lee, Student Member , IEEE,L o n g Y a n, Member , IEEE, Taehwan Roh , Student Member , IEEE

提出一种轻量化体域网方案,包含网络控制器和传感器芯片,用于睡眠监测系统。
0.18μm CMOS, 1.5V, 20Mbps, 0.33pJ/b
体域网低功耗实时可扩展睡眠监测可穿戴
创新点1:连续数据传输协议(CDT) - 这是一种系统创新,通过W-Band在多个传感器之间进行有序数据传输,实现了低功耗和实时可扩展性,支持500ms内的动态网络变化响应。
创新点2:基于链表的网络管理器(LLM) - 这是一种方法创新,采用链表结构动态管理网络配置,实时适应网络拓扑变化,显著提升了网络的可扩展性和灵活性。
创新点3:自适应双模控制器(ADMC) - 这是一种电路创新,能够根据网络状态实时切换工作模式,优化功耗和性能,支持1.5V电源电压下75W的低功耗运行。
创新点4:低摆幅数据发射器(D-TX) - 这是一种电路创新,实现了0.33pJ/b的超低能耗和20Mbps的高数据速率,适用于W-Band接口,显著降低了传感器节点的功耗。
Abstract
A light-weighted body area network using 3-layer coin-sized fabric patches is propo sed for sleep monitoring systems. It consists of two ICs, a network controller (NC) and a sensor node (SN), and also Wearable Band (W-Band) to connect them. The Continuous Data Transmission (CDT) protocol is proposed for low power and real-time scalability by in-order data transmission using W-Band among several sensors. Based on this protocol, Linked List based network Manager (LLM) and Adaptive Dual Mode Controller (ADMC) in NC, and low swing data transmitter (D-TX) and its own back-end circuits are introduced. The LLM and ADMC can adaptively change the network con figuration ac- cording to the dynamic network variances in real-time ( 500 ms), and D-TX can make low energy data transmitter of 0.33 pJ/b with 20 Mbps data rate for W-Band interface. These two low power ICs, which are implemented in 0.18 mC M O Sp r o c e s s and operates with 1.5 V supply, consume 75 Wa n d2 5 W, respectively.