CN100548216C - 活动监视 - Google Patents

活动监视 Download PDF

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Publication number
CN100548216C
CN100548216C CNB2003801055001A CN200380105500A CN100548216C CN 100548216 C CN100548216 C CN 100548216C CN B2003801055001 A CNB2003801055001 A CN B2003801055001A CN 200380105500 A CN200380105500 A CN 200380105500A CN 100548216 C CN100548216 C CN 100548216C
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output
motion
measuring unit
output channel
sensor
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CN1722978A (zh
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J·G·布雷梅
P·杜尼亚斯
G·A·米纳赫科勒赫
A·P·J·M·罗梅斯
W·L·M·C·维霍伊文
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Koninklijke Philips NV
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1118—Determining activity level
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches

Abstract

提供一种活动监视器，其可以比现有的活动监视器更便宜并要求更低的功率。断续地提供并监视来自多个运动传感器的单输出通道。

Description

活动监视
技术领域
本发明涉及活动监视，并且特别地但非排它地涉及人类的活动监视。
背景技术
人类的物理活动是其健康的重要决定因素。日常物理活动的量被视为各种疾病的病因、预防和治疗的主要因素。有关个人物理活动的信息能够协助个人维持或改善他或她的功能健康状态和生活质量。
在1997年3月第44卷第3期的IEEE Transactions onBiomedical Engineering(IEEE生物医学工程论文集)由Bouten等人撰写的“用于日常物理活动评估的三轴加速计和便携式数据处理单元(A Triaxial Accelerometer and Portable Data Processing Unitfor the Assessment of Daily Physical Activity)”文章中描述了用于监视人类活动的公知系统。
根据该公知系统，使用由三个正交安装的单轴压阻加速计构成的三轴加速计来测量包括人体加速的幅度和频率范围的加速。个人在一定时间周期内佩戴三轴加速计。数据处理单元附接到三轴加速计，并被编程以确定来自三个正交测量方向输出的加速计输出的模量的时间积分。累加这些时间积分，并将输出存储在可由计算机读出的存储器内。三轴加速计的输出与由于物理活动导致的能量消耗具有某种关系，并为后者提供这样的测量。
该公知系统允许在三个方向测量人体加速。使用集成电路技术领域内的现有技术，加速计可以制造得很小很轻，允许它在不给佩戴它的人施加负担的情况下佩戴若干天或甚至更长时间。
该公知系统使用三个抽样模拟通道连续地抽样和监视来自三个加速计的信息。因为连续执行测量，所以这样的设备的功耗不希望地过高，并因此希望降低功耗，这应能够使用更便宜和/或更小的电池。
因此，希望提供一种能够克服这些缺点的活动监视器。
发明内容
根据本发明的一个方面，提供一种活动监视器，包括：包含多个运动传感器的测量单元，可用于生成表示由此经历的运动的相应传感器信号；和处理器，用于从测量单元接收传感器信号，并可用于根据预定方法处理这些信号，其特征在于，该测量单元具有单个输出通道，并可用于在输出通道上依次输出传感器信号。
附图说明
图1图示示意性地图示实施本发明一个方面的系统的组件的方框图；
图2示意性地图示三个加速计的正交输出；
图3图示实施本发明另一方面的一种方法的步骤的流程图；和
图4图示在本发明的实施例中传感器信号的监视。
具体实施方式
图1图示实施本发明一个方面的活动监视器1。该活动监视器1包括测量单元11、处理器12和存储器单元13。测量单元11可用于生成表示活动监视器1的运动的数据信号，并将这些数据信号提供给处理器12。处理器12可用于处理从测量单元输出的数据信号，并能够在存储器单元13内存储这些数据信号或处理结果。数据可以在处理器和存储器单元13之间进行传送。处理器12还能够连接到外部主系统(hosesystem)，该外部主系统可以是个人计算机(PC)或其它合适的系统。外部主系统2可以用于执行在活动监视器1内保存的数据的附加处理。
在使用中，将活动监视器1附接到将被监视的目标。为了说明，在下文中，假设该目标是一个人，但是显然有可能将这样的活动监视器应用于任一目标。将活动监视器在某个时间周期内附接到个人或目标。
测量单元包括在相互正交的方向内设置的三个加速计。这些加速计输出表示加速计所经历的相应加速的数据信号。以常规的方式相互正交地设置这三个加速计。
在个人上，形成三个方向“前后”、“中间横向(medio-lateral)”和“垂直”，分别表示为x、y和z。加速计包括为单轴的和串行双压电晶片的压电材料带。这些带固定在其一端上。
压电加速计用作阻尼质量弹簧(mass-spring)系统，其中压电带用作弹簧和阻尼器。由于个人移动而引起的这些带的移动生成导致数据信号测量的电荷。在人移动的情况下，数据信号的频率处于0.1至20Hz的范围内。数据信号的幅度处于-12g至+12g之间。在先前提及的文章内更详细地讨论了这些数值。测量这些数据信号的合适的压电材料是本领域技术人员公知的。
根据本发明，测量单元具有单输出通道，最好是单模拟输出通道，提供给处理器12。测量单元用于在任意一个时间上经输出通道输出加速计信号之一。这些加速计信号经测量单元按顺序输出到输出通道。
在本发明的一种优选实施例中，该处理器可操作，从而以不连续的方式抽样输出通道测量单元。在这样一种情况下，处理器在预定量的时间上抽样测量单元的输出通道，并且随后停止抽样该测量单元。
除了处理器单元不连续操作之外，或者作为该方法的替代方案，测量单元可以在每个加速计信号输出期间不连续地操作输出通道。图3是图示测量单元的循环输出的流程图。如从图3可以看出的，从测量单元中依次输出每个输出ax、ay和az。这在图4中进一步进行图示。为了简明起见，在图4中未图示特定的输出信号，但是图示了其间输出相应加速计信号的时间周期。
将认识到，减少从测量单元到处理器的输出所需要的通道数量可以降低活动监视器的总成本。此外，改变处理器的抽样速率意味着存在处理器不工作的时间周期，并因此能够在这些时间期间节省电池功率。因此，本发明的实施例能够降低活动监视器的成本和/或电池功耗。
显然将认识到，加速计仅是优选的运动传感器，并且任一种合适的运动传感器都可以在本发明的实施例中使用和获得本发明的优点。
应当强调：术语“包括”或“包含”在本说明书中用于描述所述特征、整数、步骤或组件的存在，但是并不排除一个或多个其它特征、整数、步骤或组件或其组合的添加。

Claims (6)

1.一种活动监视器，包括：
测量单元，包含多个运动传感器，所述运动传感器产生相应的表示由此经历的运动的传感器信号；和
处理器，用于从该测量单元接收传感器信号，并用于根据预定的方法来处理这些信号，
其特征在于，该测量单元具有单个输出通道，并在该输出通道上依次输出传感器信号，而且在输出每个运动传感器输出信号期间在时间上断续地操作该输出通道。
2.如权利要求1所述的活动监视器，其中所述运动传感器是加速计。
3.如权利要求1或2所述的活动监视器，其中所述运动传感器被设置为相互正交。
4.如权利要求2或3所述的活动监视器，其中该处理器在时间上断续地抽样该测量单元的输出通道。
5.一种监视活动的方法，该方法包括以下步骤：
从多个运动传感器产生相应的表示由此经历的运动的传感器信号；
输出所述传感器信号；
接收所述传感器信号；和
根据预定方法，处理这些信号，
其特征在于，在单个输出通道上依次输出所述传感器信号，并且在输出每个运动传感器输出信号期间在时间上断续地操作该输出通道。
6.如权利要求5所述的方法，其中在时间上断续地产生所述传感器信号。
CNB2003801055001A 2002-12-10 2003-11-21 活动监视 Expired - Lifetime CN100548216C (zh)

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EP02080216.1 2002-12-10
EP02080216 2002-12-10

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CN100548216C true CN100548216C (zh) 2009-10-14

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US (1) US7325453B2 (zh)
EP (1) EP1571988B1 (zh)
JP (2) JP2006509549A (zh)
CN (1) CN100548216C (zh)
AT (1) ATE396647T1 (zh)
AU (1) AU2003280123A1 (zh)
DE (1) DE60321379D1 (zh)
WO (1) WO2004052200A1 (zh)

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AU2003280123A1 (en) 2004-06-30
DE60321379D1 (de) 2008-07-10
JP5641767B2 (ja) 2014-12-17
JP2010158595A (ja) 2010-07-22
US20060123905A1 (en) 2006-06-15
CN1722978A (zh) 2006-01-18
EP1571988B1 (en) 2008-05-28
US7325453B2 (en) 2008-02-05
EP1571988A1 (en) 2005-09-14
WO2004052200A1 (en) 2004-06-24
JP2006509549A (ja) 2006-03-23
ATE396647T1 (de) 2008-06-15

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