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    • 5. 发明公开
    • Device and system for detecting abnormality
    • 用于检测异常的装置和系统
    • EP1324290A2
    • 2003-07-02
    • EP02028793.4
    • 2002-12-27
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Ueno, ReikoKaneda, NorikoOmori, TakashiHara, KousukeYamamoto, HiroshiInoue, ShigeyukiTanaka, Shinji
    • G08B21/04
    • G06K9/00771G06F19/00G06K9/00335G06K9/6218G06K9/6284G06K9/6297G08B21/0423G08B21/0469G08B31/00
    • An abnormality detection device 30 includes small motion sensors 25a∼25c that detect small motions of a person in a house, a data collecting unit 32 that collects and stores sensor signals from the small motion sensors 25a∼25c as sensor patterns, a Markov chain operating unit 33 that transforms the sensor patterns into a cluster sequence by vector-quantizing input patterns which are obtained by averaging and normalizing the sensor patterns and calculates a transition number matrix and a duration time distribution of a Markov chain and so on using a Markov chain model, a comparing unit 34 that calculates characteristic amount (Euclid distance and average log likelihood in appearance frequency of a Markov chain and average log likelihood to the duration time distribution of a Markov chain) of a sample activity as against a daily activity based on the obtained transition number matrix and the duration time distribution and so on, and others.
    • 异常检测装置30包括检测房屋内的人的小动作的小动作传感器25a〜25c,收集并存储来自小动作传感器25a〜25c的传感器信号作为传感器模式的数据收集部32,马尔可夫链动作 单元33,其通过对传感器图案进行平均和归一化所获得的输入图案进行矢量量化,并将传感器图案变换成聚类序列,并且使用马尔科夫链模型计算马尔可夫链等的转移数矩阵和持续时间分布等 ,比较单元34,其基于所获得的样本活动相对于日常活动来计算样本活动的特征量(马尔可夫链的出现频率上的欧几里得距离和平均对数似然性以及马尔可夫链的持续时间分布的平均对数似然性) 过渡数矩阵和持续时间分布等等。
    • 8. 发明公开
    • Physical movement analyzer and physical movement analyzing method
    • 物理运动分析仪和物理运动分析方法
    • EP1466557A2
    • 2004-10-13
    • EP04008420.4
    • 2004-04-07
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Inoue, ShigeyukiTanaka, ShinjiShiraishi, TakakoYamamoto, HiroshiKawasaki, Yoshitaka
    • A61B5/11
    • A61B5/112A61B5/1038
    • The acceleration information detecting unit (11) of an acceleration detecting apparatus (10) have an acceleration sensor with at least one-axis measures the acceleration in the back and forth direction (or the right and left direction) of a walking person and sends the acceleration data indicating this acceleration to the wireless communication control unit (12). The wireless communication control unit (12) sends the acceleration data that is measured in the acceleration information detecting unit (11) to the physical movement analyzer (20) using a short-distance wireless communication method. On the other hand, the wireless communication control unit (21) of the physical movement analyzer (20) receives the acceleration data that is sent from the acceleration detecting apparatus (10) using a short-distance wireless communication method and sends it to the walking speed detecting unit (22). The walking speed detecting unit (22) estimates the strides and a walking period based on the received acceleration data and calculates the walking speed based on the strides and the walking period.
    • 加速度检测设备(10)的加速度信息检测单元(11)具有至少一个轴的加速度传感器测量步行者的前后方向(或左右方向)上的加速度, 指示该加速度的加速度数据给无线通信控制单元(12)。 无线通信控制单元(12)使用短距离无线通信方法将在加速度信息检测单元(11)中测量的加速度数据发送到物理运动分析器(20)。 另一方面,物理运动分析器(20)的无线通信控制单元(21)接收使用短距离无线通信方法从加速度检测设备(10)发送的加速度数据,并将其发送到步行 速度检测单元(22)。 步行速度检测部(22)基于接收到的加速度数据来估计步幅和步行周期,并基于步幅和步行周期来计算步行速度。