基于UHF RFID技术的无线脉搏血氧监测系统

发布时间：2018-10-22 18:57

【摘要】：针对人口老龄化和医疗资源紧张问题,利用可穿戴设备和先进的物联网技术将患者的生命体征信息随时随地传送给医护人员和医疗机构,使患者得到及时救治。因此,微型化、无线化、集成化和智能化的可穿戴设备越来越受到人们的关注。超高频射频识别技术(UHF RFID)是一种工作在860-960MHz的无线通信技术,具有成本和功耗低、抗干扰能力强的优点,通过结合先进的传感器技术可以进一步拓展其功能。然而,截止目前为止,关于UHF RFID技术在可穿戴设备中的开发应用并不多见。因此,开发一款基于UHF RFID技术的无线生命体征监护系统对促进智慧医疗的发展和推动医疗行业的改革有着重要意义。本文提出一种基于UHF RFID技术的无线血氧脉搏监测解决方案,完成了系统搭建和验证,并对部分模块进行了数字集成电路设计。其中系统整体架构由光电传感器、数据处理模块、RFID标签、RFID阅读器和上位机组成。光电传感器和数据处理模块实时采集和处理脉搏血氧信号,RFID标签和阅读器实现数据无线通信,最终通过上位机完成数据收集和界面显示。系统功能验证完成后对数据处理模块进行了数字集成电路设计,完成RTL代码的设计与优化,并基于UMC0.18μm CMOS工艺进行了完整的后端物理设计,包括布图、标准单元布局、时钟树综合、布线和可制造性设计。经过静态时序分析、形式验证、物理版图验证DRC和LVS的检查后,芯片的时序问题与版图的规则问题均得到修复。数据处理芯片版图面积为693×693μm~2,核心区标准单元数为1704。实验结果表明,所设计系统与临床用血氧脉搏检测仪具有良好的一致性,血氧饱和度和脉率的最大测量误差分别为±1%和±2bpm且具有无线传输和低功耗的特点,为无线生物传感芯片的设计开发提供了重要参考。
[Abstract]:In view of the aging population and the shortage of medical resources, wearable devices and advanced Internet of things technology are used to transmit the vital signs of patients to medical staff and medical institutions at any time and anywhere, so that patients can be treated in a timely manner. Therefore, miniaturized, wireless, integrated and intelligent wearable devices are attracting more and more attention. UHF radio frequency identification (UHF RFID) is a kind of wireless communication technology working in 860-960MHz, which has the advantages of low cost, low power consumption and strong anti-interference ability. By combining with advanced sensor technology, its function can be further expanded. However, so far, the development and application of UHF RFID technology in wearable devices is rare. Therefore, it is of great significance to develop a wireless vital sign monitoring system based on UHF RFID technology to promote the development of intelligent medical care and the reform of medical industry. In this paper, a wireless oxygen pulse monitoring solution based on UHF RFID technology is proposed. The system is built and verified, and some modules are designed with digital integrated circuit. The whole system is composed of photoelectric sensor, data processing module, RFID tag, RFID reader and PC. Photoelectric sensor and data processing module collect and process pulse oxygen signal in real time, RFID tag and reader realize data wireless communication, and finally complete data collection and interface display through upper computer. After the functional verification of the system, the digital integrated circuit design of the data processing module is carried out, and the design and optimization of the RTL code are completed. Based on the UMC0.18 渭 m CMOS process, the complete back-end physical design is carried out, including the layout of the layout and the layout of the standard unit. Clock tree synthesis, cabling and manufacturability design. After the static timing analysis, formal verification, physical layout verification DRC and LVS check, the chip timing problem and layout rule problem have been fixed. The layout area of the data processing chip is 693 脳 693 渭 m ~ (-2) and the number of standard cells in the core area is 1704. The experimental results show that the designed system is in good agreement with the clinical oxygen pulse detector. The maximum measurement errors of oxygen saturation and pulse rate are 卤1% and 卤2bpm, respectively, and have the characteristics of wireless transmission and low power consumption. It provides an important reference for the design and development of wireless biosensor chip.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP391.44;TH789

【相似文献】