题目/Title：一种低功耗数字式人工关节无线监视系统
                        Low Power IC Design of Wireless Monitoring System for Orthopedic Implants

作者/Author：陈虹,刘鸣,贾晨,张春,王志华
                        Hong Chen,Ming Liu,Chen Jia,Chun Zhang,Zhihua Wang

期刊/Journal：微电子学 Microelectronics

年份/Issue Date：2007

卷（期）及页码/Volume（No.）&pages：Vol.37, No.5, pp. 717 - 725

摘要/Abstract：
提出了一种由压电陶瓷和射频电路供电的低功耗数字式人工关节无线监视系统。该系统监视人工关节的工作情况,通过传感器得到人工关节的异常压力、磨损情况等数据,经过数模转换、存储后,通过射频信号,以无线方式发送至体外电路。对系统的各个部分进行了详细描述。部分电路已经得到流片验证或仿真,测试结果符合系统要求。
A low power IC of bi-directional wireless monitoring system for orthopedic implants was designed,which was powered by stiff lead zirconate titanate(PZT) ceramics and radio frequency signal.The analog/digital mix-mode system monitors the implant duty cycle,detects abnormal asymmetry,wear,high amounts of force and other conditions of the orthopedic implants.Data for diagnosis from sensors were converted into digital signals and saved in the memory.Communication between the embedded chip(inside body) and the remote circuit (out sidebody) was made wirelessly through RF signals. RF circuit s were taped out and tested , and satisfactory result was achieved. And the power circuit was also simulated for verification.