英语翻译During the last few years there has been a significant i

英语翻译
During the last few years there has been a significant increase in the number and variety of
wearable health monitoring devices,ranging from simple pulse monitors,activity monitors,and
portable Holter monitors,to sophisticated and expensive implantable sensors.However,wider
acceptance of the existing systems is still limited by the following important restrictions.
Traditionally,personal medical monitoring systems,such as Holter monitors,have been used only to
collect data.Data processing and analysis are performed offline,making such devices impractical for
continual monitoring and early detection of medical disorders.Systems with multiple sensors for
physical rehabilitation often feature unwieldy wires between the sensors and the monitoring system.
These wires may limit the patient's activity and level of comfort and thus negatively influence the
measured results [12].In addition,individual sensors often operate as stand-alone systems and usually
do not offer flexibility and integration with third-party devices.Finally,the existing systems are rarely
made affordable.
One of the most promising approaches in building wearable health monitoring systems utilizes
emerging wireless body area networks (WBANs) [8].A WBAN consists of multiple sensor nodes,
each capable of sampling,processing,and communicating one or more vital signs (heart rate,blood
pressure,oxygen saturation,activity) or environmental parameters (location,temperature,humidity,
light).Typically,these sensors are placed strategically on the human body as tiny patches or hidden in
users’ clothes allowing ubiquitous health monitoring in their native environment for extended periods
of time.
A number of recent research efforts focus on wearable systems for health monitoring.Researchers
at the MIT Media Lab have developed MIThril,a wearable computing platform compatible with both
custom and off-the-shelf sensors.The MIThril includes ECG,skin temperature,and galvanic skin
response (GSR) sensors.In addition,they demonstrated step and gait analysis using 3-axis
accelerometers,rate gyros,and pressure sensors [18].MIThril is being used to research human
behaviour recognition and to create context-aware computing interfaces [5].CodeBlue,a Harvard
University research project,is also focused on developing wireless sensor networks for medical
applications.They have developed wireless pulse oximeter sensors,wireless ECG sensors,and triaxial
accelerometer motion sensors.Using these sensors,they have demonstrated the formation of adhoc
networks.The sensors,when outfitted on patients in hospitals or disaster environments,use the
ad-hoc networks to transmit vital signs to healthcare givers,facilitating automatic vital sign collection
and real-time triage [19,9].

在过去几年中可穿戴式医疗监控设备有了显着增加的数量和品种
,包括从简单的脉冲监视器,活动监控,并
便携式动态心电图监测,对复杂和昂贵的植入传感器.然而,更广泛地
接受现行的制度仍然是有限的下列重要限制.
传统上,个人医疗监测系统,如动态心电图监测,一直只能用来
收集数据.数据处理和分析执行脱机,使这种装置不切实际的
持续的监测和早期发现疾病的医疗.系统的多传感器
身体康复的功能往往难以导线之间的传感器和监测系统.
这些电线可能限制病人的活动和水平的舒适,从而产生负面影响
测量结果[ 12 ] .此外,个别传感器通常作为独立的系统,通常
不提供的灵活性和整合第三方设备.最后,现有的系统,很少
取得负担得起的.
其中最有希望的办法,建立健康监测系统,可穿戴式利用
新兴的无线身体区域网络（ WBANs ） [ 8 ] .阿WBAN由多个传感器节点,
每一个有能力的取样,处理和交流的一个或多个生命体征（心率,血压
压力,血氧饱和度,活动）或环境参数（位置,温度,湿度,
轻） .通常情况下,这些传感器被置于战略对人体的小补丁或隐藏在
用户的衣服让无处不在的卫生监测在其本土环境长时期
的时间.
最近的一些研究工作的重点是在穿戴系统健康监测.研究人员
在麻省理工学院的媒体实验室开发黑金,一个穿戴计算平台兼容
自定义和现成的传感器.在黑金包括心电图,皮肤温度和皮电
反应（金沙江）传感器.此外,他们表现出的步骤和步态分析使用3轴
加速度计,速率陀螺仪和压力传感器[ 18 ] .黑金是被用来研究人类
行为识别和创造上下文感知计算接口[ 5 ] .CodeBlue ,哈佛
大学的研究项目,也专注于开发无线传感器网络的医疗
应用.他们已经开发出新型无线脉搏血氧饱和度仪的传感器,无线心电图传感器,三轴
加速度计的运动传感器.利用这些传感器,他们所表现出的形成临时性
网络.传感器,当装备的病人在医院或灾难的环境,请使用
Ad - hoc网络传输的重要标志,以医疗保健提供者,促进自动收集生命体征
和实时分流[ 19,9 ] .