基于WSN的可穿戴式生命特征监护设备的研制
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摘要
本文重点论述了基于无线传感器网络的高压氧舱专用的穿戴式多生理参数监护仪的关键技术及其装置的研究。
论文在对无限传感器网络拓扑结构研究的基础上,设计了本监护仪的系统结构,接着对无线传感器网络传感节点的研究,设计了穿戴式监护仪系统的硬件,给出了基于单片机MSP430F149的硬件体系结构和工作模式,最后论述了无线传感器网络通信协议和无线传感器网络同步协议等系统软件在硬件平台上在TI公司提供的IAR平台上的实现方法。
本论文根据穿戴式高压氧舱专用监护仪的短距离、低复杂度、低功耗、低成本和高稳定性的要求,选择了IEEE802.15.4作为无线传感器网络的无线通信协议,以及选择与该通信协议相符合的射频芯片CC2420。在此基础上,对穿戴式高压氧舱专用监护仪系统的网络结构和软硬件进行设计,对实现该监护装置的技术难点和关键点进行分析研究。
论文有针对性地研究了基于IEEE 802.15.4的无线传感器网络,实现一套一个协调器主节点协调多个传感节点的星型网络,编制了基于IEEE802.15.4的系统通信协议,实现了传感器网络的同步协调的进行信号采集传输。针对心电、血压、脉搏、体温、血氧等生理信号的穿戴式传感检测、数据采集的技术难点进行分析研究,融合这五种检测电路和射频通信模块设计传感节点和协调器节点。
应用测试表明:论文提出的系统设计方案和技术指标满足高压氧舱内监护系统的实用和安全的要求,可保证病人的生命体征参数在高压氧舱内外实现同步安全的长时间监护。
This paper presents the researching achievements focuses on the key technologies and devices of wearable monitors based on Wireless Sensor Network .The devices can monitor multi-physiological parameters in the hyperbaric oxygen chamber.
In the paper,First,on the basis of introducing the architecture of the WSN’s topology,the system’s architecture of the monitor is proposed. Next,the hardware of the wearable monitor are proposed after the introduction of WSN’nodes. At the same time ,both the hardware based on the chip MSP430F149 and its working mode were introduced.finally,The WSN’s synchronization protocols and other software are elaborated on the IAR platform provided by TI .
It was required that The equipment must be a short-range, low complexity, low-power, low-cost and high-stability system.The IEEE802.15.4 was chosen to be the WSN’s transmission protocol according to the requirement of the equipment. What’s more, the CC2420 which is compatible with IEEE802.15.4 was selected for communication chips.Then, the network structure,the hardware and the software were designed in detail.The key technical difficulties are seriously researched, and some relative optimizing techniques are also put forward.
With the clear target, By the researchment of the WSN based on the IEEE 802.15.4 in this dissertation, The monitoring system was designed as a star network、the system’s transmission protocol based on the IEEE802.15.4 were programmed and the WSN’s synchronization protocol was developed and the singals can be collected with the sensor netwok working under network synchronization.After the wearable physiological signal detection difficulties of the cardiac, blood pressure, body temperature, spo2 were analysised and Overcomed, the five detection circuits and the RF circuit are integrated . the sensor nodes and coordinator node were designed.
Finally, the results of the testing experiment and clinical verification show that the performance of equipment carry out implementation requirements .The monitoring and nursing systems can run in long time and The physical sign parameters of patients be monitored simultaneously in the hyperbaric oxygen chamber and outside.
论文在对无限传感器网络拓扑结构研究的基础上,设计了本监护仪的系统结构,接着对无线传感器网络传感节点的研究,设计了穿戴式监护仪系统的硬件,给出了基于单片机MSP430F149的硬件体系结构和工作模式,最后论述了无线传感器网络通信协议和无线传感器网络同步协议等系统软件在硬件平台上在TI公司提供的IAR平台上的实现方法。
本论文根据穿戴式高压氧舱专用监护仪的短距离、低复杂度、低功耗、低成本和高稳定性的要求,选择了IEEE802.15.4作为无线传感器网络的无线通信协议,以及选择与该通信协议相符合的射频芯片CC2420。在此基础上,对穿戴式高压氧舱专用监护仪系统的网络结构和软硬件进行设计,对实现该监护装置的技术难点和关键点进行分析研究。
论文有针对性地研究了基于IEEE 802.15.4的无线传感器网络,实现一套一个协调器主节点协调多个传感节点的星型网络,编制了基于IEEE802.15.4的系统通信协议,实现了传感器网络的同步协调的进行信号采集传输。针对心电、血压、脉搏、体温、血氧等生理信号的穿戴式传感检测、数据采集的技术难点进行分析研究,融合这五种检测电路和射频通信模块设计传感节点和协调器节点。
应用测试表明:论文提出的系统设计方案和技术指标满足高压氧舱内监护系统的实用和安全的要求,可保证病人的生命体征参数在高压氧舱内外实现同步安全的长时间监护。
This paper presents the researching achievements focuses on the key technologies and devices of wearable monitors based on Wireless Sensor Network .The devices can monitor multi-physiological parameters in the hyperbaric oxygen chamber.
In the paper,First,on the basis of introducing the architecture of the WSN’s topology,the system’s architecture of the monitor is proposed. Next,the hardware of the wearable monitor are proposed after the introduction of WSN’nodes. At the same time ,both the hardware based on the chip MSP430F149 and its working mode were introduced.finally,The WSN’s synchronization protocols and other software are elaborated on the IAR platform provided by TI .
It was required that The equipment must be a short-range, low complexity, low-power, low-cost and high-stability system.The IEEE802.15.4 was chosen to be the WSN’s transmission protocol according to the requirement of the equipment. What’s more, the CC2420 which is compatible with IEEE802.15.4 was selected for communication chips.Then, the network structure,the hardware and the software were designed in detail.The key technical difficulties are seriously researched, and some relative optimizing techniques are also put forward.
With the clear target, By the researchment of the WSN based on the IEEE 802.15.4 in this dissertation, The monitoring system was designed as a star network、the system’s transmission protocol based on the IEEE802.15.4 were programmed and the WSN’s synchronization protocol was developed and the singals can be collected with the sensor netwok working under network synchronization.After the wearable physiological signal detection difficulties of the cardiac, blood pressure, body temperature, spo2 were analysised and Overcomed, the five detection circuits and the RF circuit are integrated . the sensor nodes and coordinator node were designed.
Finally, the results of the testing experiment and clinical verification show that the performance of equipment carry out implementation requirements .The monitoring and nursing systems can run in long time and The physical sign parameters of patients be monitored simultaneously in the hyperbaric oxygen chamber and outside.
引文
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[9]刘述.传感器网络应用及实现[J].电信网技术,2005(4):9-12.
[10] Gang Ding et al. Tree-Based Data Broadcast in IEEE 802.15.4 and ZigBee Networks[J].IEEE TRANSACTIONS ON MOBILE COMPUTING, Nov.2006(11): 1561-1562.
[11] IEEE Std 802.15.4-2003,IEEE Standard for Information Technology Telecommunications and information exchange between systems Local and metropolitan area networks ---Part 15.4:”wireless Medium Access Control (MAC) and Physical Layer (PHY)Specifications for Low-Rate[M] Wireless Personal Area Networks (LR-WPANs)”2003.
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[13]胡大可.MSP430系列超低功耗16位单片机原理与应用. [M]北京:北京航空航天大学出版社,2000.
[14] MSP430 MCUs, Available at : http://www.ti.com/msp430/, January 2006.
[15] Akyildiz I F, Su Weilian, Sankarasubramaniam Y, et al. A Survey on Sensor Networks [J].IEEE Communications Magazine, 2002,40(8):102—105.
[16] Chipcon RF Tranceivers Available at:http://www.chipcon.com/,2006-2007.
[17]刘克球等.生物医学电子学[M].北京大学出版社,1988:pp126-127.
[18] Low Cost. Low Power Instrumentation Amplifier AD620.
[19]郭兴明张科吴宝明.多生命参数监护仪用呼吸检测电路[J] .电子技术.,2000 2:pp35-36.
[20]沈德麟,唐庆玉,曹宇.监护仪用呼吸波检测电路的研制[J]. 1996 20(2):pp104-105.
[21]冯奇.基于MSP430超低功耗处理器的监护仪脉搏血氧模块[J].中国仪器仪表.,2006 3:pp78-81.
[22]杜晓兰,吴宝明,何庆华,等.无创式微型动态血压监护仪的设计[J].北京生物医学工程2002 16(3):pp213-214.
[23] http://www.zigbee.org/en/press/.
[24]瞿雷,一种新的无线网络通信技术Zigbee[J],单片机与嵌入式系统应用,2005(2).
[25] Elson J RomerK.Wireless sensor networks a new regine for time synchronization[C] . Proceedings of the 1st Workshop on Hot Topics In Networks(Hot Nets-I),Princeton New Jersey,2002: pp28-29.
[26] Ganeriwal Saurabh,Kum ar Ran,Srivastava M aniB.Timing-sync protocol for sensor networks[C].Proceedings of the 1st ACM Conference on Embedded Networked Sensor Systems(SenSvs)。Los Angeles CA.2003.pp138-149.
[27] Maroti M,Kusy B, Sinon G,et al.the flooding time synchronization protocol[C]. Pro- -ceedings of the 2nd ACM Conference on Embedded Networked Sensor Syntems(SenSys), Baltinore,Mariland,2004:pp39-49.
[28] Su Ping ,Delay Measurement Time Synchronization for Wireless Sensor Networks[R].Intel Research Center June 2003,IR-2003-64.
[29] Van Greunen Jana Rahaey Jan Lighweight Time Synchronization for Sensor Networks[C]. In Proc 2nd ACM International Conf Wireless Sensor Networks and Apps San Diego CA,2003:pp11-19.
[30] Aleksandar Milenkovic et al. Wireless sensor networks for personal health monitoring:Issues and an implementation,Available online at: http://www.sciencedirect.com 2007.
[31]徐佳.多参数病人监护仪的应用与技术发展[J].FM,2005,August,12(4):267-268.
[2] WarrenS , Lebak J ,Yao J , at al . Interoperability and security in wireless body area network infrastructures [C]. Conf Proc IEEE Eng Med Biol Soc 2005 ; 4 : 3837– 840.
[3] Warren s,Yao J,Schmitz R,et al.Reconfigurable Point-of-Care Systems Designed with Interoperability Standards. Conf Proc IEEE Eng Med Biol Soc 2004;5:3250-3273 .
[4] Mana J .Morón , Eduardo Casilari , Rafael Luque , JoséA.Gáquez.A Wireless Monitoring System for Pulse- oximatry Sensors[J] .Proceedings of the 2005 Systems Communications.2005.
[5] KaZushinge QuChi ,Takuji Szuki , and MiwakO Doi.Life Minder : A Wearable Healthcare Support System Using Use’s Context[C] .Proceedings of the 22nd interneaional Conference on Distributed Computing Systems Workshops.2002.
[6]滕晓菲,张元亭.移动医疗:穿戴式医疗仪器的发展趋势[J].中国医疗器械杂志, 2006 , 30 ( 5 ) : 330– 340.
[7] Yu SN , Cheng JC. A Wireless Physiological Signal Monitoring System with Integrated Bluetooth and WiFi Technologies[C] . Conf Proc IEEE Eng Med Biol Soc 2005 ; 3 : 2203– 2206
[8]孙利民,李建中,趁渝,朱红松.无线传感器网络[M].清华大学出版社.2005.
[9]刘述.传感器网络应用及实现[J].电信网技术,2005(4):9-12.
[10] Gang Ding et al. Tree-Based Data Broadcast in IEEE 802.15.4 and ZigBee Networks[J].IEEE TRANSACTIONS ON MOBILE COMPUTING, Nov.2006(11): 1561-1562.
[11] IEEE Std 802.15.4-2003,IEEE Standard for Information Technology Telecommunications and information exchange between systems Local and metropolitan area networks ---Part 15.4:”wireless Medium Access Control (MAC) and Physical Layer (PHY)Specifications for Low-Rate[M] Wireless Personal Area Networks (LR-WPANs)”2003.
[12]利尔达等.MSP430超低功耗16位混合信号处理器[M].北京:清华大学出版社,2004.
[13]胡大可.MSP430系列超低功耗16位单片机原理与应用. [M]北京:北京航空航天大学出版社,2000.
[14] MSP430 MCUs, Available at : http://www.ti.com/msp430/, January 2006.
[15] Akyildiz I F, Su Weilian, Sankarasubramaniam Y, et al. A Survey on Sensor Networks [J].IEEE Communications Magazine, 2002,40(8):102—105.
[16] Chipcon RF Tranceivers Available at:http://www.chipcon.com/,2006-2007.
[17]刘克球等.生物医学电子学[M].北京大学出版社,1988:pp126-127.
[18] Low Cost. Low Power Instrumentation Amplifier AD620.
[19]郭兴明张科吴宝明.多生命参数监护仪用呼吸检测电路[J] .电子技术.,2000 2:pp35-36.
[20]沈德麟,唐庆玉,曹宇.监护仪用呼吸波检测电路的研制[J]. 1996 20(2):pp104-105.
[21]冯奇.基于MSP430超低功耗处理器的监护仪脉搏血氧模块[J].中国仪器仪表.,2006 3:pp78-81.
[22]杜晓兰,吴宝明,何庆华,等.无创式微型动态血压监护仪的设计[J].北京生物医学工程2002 16(3):pp213-214.
[23] http://www.zigbee.org/en/press/.
[24]瞿雷,一种新的无线网络通信技术Zigbee[J],单片机与嵌入式系统应用,2005(2).
[25] Elson J RomerK.Wireless sensor networks a new regine for time synchronization[C] . Proceedings of the 1st Workshop on Hot Topics In Networks(Hot Nets-I),Princeton New Jersey,2002: pp28-29.
[26] Ganeriwal Saurabh,Kum ar Ran,Srivastava M aniB.Timing-sync protocol for sensor networks[C].Proceedings of the 1st ACM Conference on Embedded Networked Sensor Systems(SenSvs)。Los Angeles CA.2003.pp138-149.
[27] Maroti M,Kusy B, Sinon G,et al.the flooding time synchronization protocol[C]. Pro- -ceedings of the 2nd ACM Conference on Embedded Networked Sensor Syntems(SenSys), Baltinore,Mariland,2004:pp39-49.
[28] Su Ping ,Delay Measurement Time Synchronization for Wireless Sensor Networks[R].Intel Research Center June 2003,IR-2003-64.
[29] Van Greunen Jana Rahaey Jan Lighweight Time Synchronization for Sensor Networks[C]. In Proc 2nd ACM International Conf Wireless Sensor Networks and Apps San Diego CA,2003:pp11-19.
[30] Aleksandar Milenkovic et al. Wireless sensor networks for personal health monitoring:Issues and an implementation,Available online at: http://www.sciencedirect.com 2007.
[31]徐佳.多参数病人监护仪的应用与技术发展[J].FM,2005,August,12(4):267-268.