公开(公告)号：US20120232823A1

公开(公告)日：2012-09-13

申请号：US13510408

申请日：2010-11-22

申请人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

发明人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

IPC分类号： G06F19/00 ,  G01P15/00

CPC分类号： A61B5/1117 ,  A61B2562/0219 ,  G01P7/00 ,  G01P15/0891 ,  G01P15/18 ,  G08B21/043 ,  G08B21/0446

摘要： There is provided a fall detector for use in detecting falls by a user, the fall detector comprising an accelerometer for producing a time series of measurement samples representing the acceleration acting on the fall detector; a processor for estimating a vertical velocity and/or vertical displacement of the fall detector from the measurement samples and using the estimated vertical velocity and/or vertical displacement to determine whether the user has suffered a fall; wherein the processor is configured to estimate a vertical velocity and/or vertical displacement of the fall detector from the measurement samples by estimating a corresponding time series of unit vectors representing acceleration due to gravity in the reference frame of the accelerometer from the time series of measurement samples; projecting each measurement sample onto the corresponding unit vector and subtracting acceleration due to gravity to give a series of estimates for the vertical acceleration of the fall detector; and integrating the series of estimates for the vertical acceleration over a time period to give a time series of values for the vertical velocity and/or vertical displacement of the fall detector.

摘要翻译： 提供了一种用于检测用户跌落的跌落检测器，该跌落检测器包括：加速度计，用于产生表示作用在跌落检测器上的加速度的测量样本的时间序列; 用于估计下降检测器与测量样本的垂直速度和/或垂直位移的处理器，并使用估计的垂直速度和/或垂直位移来确定用户是否遭受跌倒; 其中所述处理器被配置为通过从所述测量的时间序列估计所述加速度计的参考帧中的由重力引起的加速度的相应时间序列来估计所述跌落检测器与所述测量样本的垂直速度和/或垂直位移 样品; 将每个测量样本投影到相应的单位向量上，并且减去由于重力引起的加速度，以给出对于下降检测器的垂直加速度的一系列估计; 并且对一段时间内的垂直加速度的一系列估计值进行积分，以给出坠落检测器的垂直速度和/或垂直位移的值的时间序列。

公开(公告)号：US09456771B2

公开(公告)日：2016-10-04

申请号：US13510408

申请日：2010-11-22

申请人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

发明人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

IPC分类号： A61B5/11 ,  G08B21/04 ,  G01P7/00 ,  G01P15/08 ,  G01P15/18

CPC分类号： A61B5/1117 ,  A61B2562/0219 ,  G01P7/00 ,  G01P15/0891 ,  G01P15/18 ,  G08B21/043 ,  G08B21/0446

摘要： A fall detector includes an accelerometer for producing a time series of measurement samples representing the acceleration acting on the fall detector; a processor for estimating a vertical velocity and/or displacement of the fall detector from the measurement samples and using the estimated vertical velocity and/or displacement to determine whether the user has suffered a fall. The processor is configured to estimate a vertical velocity and/or displacement of the fall detector by estimating a corresponding time series of unit vectors representing acceleration due to gravity in the reference frame of the accelerometer from the time series of measurement samples; projecting each measurement sample onto the corresponding unit vector and subtracting acceleration due to gravity to give a series of estimates for the vertical acceleration of the fall detector; and integrating the series of estimates to give a time series of values for the vertical velocity and/or displacement of the fall detector.

摘要翻译： 坠落检测器包括加速度计，用于产生表示作用在坠落检测器上的加速度的测量样本的时间序列; 用于估计来自测量样本的跌落检测器的垂直速度和/或位移的处理器，并且使用估计的垂直速度和/或位移来确定用户是否遭受跌倒。 处理器被配置为通过从测量样本的时间序列估计加速度计的参考帧中由于重力引起的加速度的相应时间序列来估计下降检测器的垂直速度和/或位移; 将每个测量样本投影到相应的单位向量上，并且减去由于重力引起的加速度，以给出对于下降检测器的垂直加速度的一系列估计; 并且对该系列的估计进行积分以给出坠落检测器的垂直速度和/或位移的时间序列值。

公开(公告)号：US09176932B2

公开(公告)日：2015-11-03

申请号：US13478403

申请日：2012-05-23

申请人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

发明人： Constant Paul Marie Jozef Baggen ,  Ningjiang Chen

IPC分类号： G01P15/00 ,  G01C5/06 ,  G06F17/18 ,  A61B5/00 ,  A61B5/11

CPC分类号： G06F17/18 ,  A61B5/1117 ,  A61B5/7246 ,  G01C5/06 ,  G01P15/00 ,  G08B21/043 ,  G08B21/0446 ,  G08B25/016

摘要： A method for detecting a fall by a user includes a method of detecting a fall by a user. The method includes processing measurements obtained from one or more sensors to extract a respective value for a plurality of features associated with a fall. A respective log likelihood ratio for each of the values is determined. Whether the user has fallen is determined based on the determined log likelihood ratios.

摘要翻译： 用于检测用户掉落的方法包括检测用户掉落的方法。 该方法包括处理从一个或多个传感器获得的测量值，以提取与坠落相关联的多个特征的相应值。 确定每个值的各自的对数似然比。 基于确定的对数似然比来确定用户是否已经下降。

公开(公告)号：US20110077865A1

公开(公告)日：2011-03-31

申请号：US12991928

申请日：2009-05-11

申请人： Ningjiang Chen ,  Sheng Kim ,  Wilhelmus Andreas Marinus Ar Van Den Dungen ,  Constant Paul Marie Jozef Baggen ,  Richard Marcel Pierre Doornbos

发明人： Ningjiang Chen ,  Sheng Kim ,  Wilhelmus Andreas Marinus Ar Van Den Dungen ,  Constant Paul Marie Jozef Baggen ,  Richard Marcel Pierre Doornbos

IPC分类号： G06F19/00 ,  G01P15/00 ,  G01W1/00

CPC分类号： A61B5/1117 ,  A61B2560/0209 ,  A61B2562/0219 ,  G01P1/127 ,  G01P13/00 ,  G01P15/08 ,  G06F1/3215 ,  G06F1/3293 ,  G08B21/0446 ,  G08B29/183 ,  Y02D10/122

摘要： There is provided a fall detection system, comprising a passive vibration sensor; one or more other sensors for detecting respective characteristics of a fall; and a processor for analyzing measurements from the one or more other sensors to determine if a fall has occurred; wherein the system is configured to selectively provide power to the one or more other sensors and/or processor in response to the passive vibration sensor detecting motion of a user of the fall detection system.

摘要翻译： 提供了一种坠落检测系统，包括被动振动传感器; 用于检测坠落的相应特征的一个或多个其它传感器; 以及用于分析来自所述一个或多个其它传感器的测量值以确定是否发生跌落的处理器; 其中所述系统被配置为响应于所述被动振动传感器检测所述跌倒检测系统的用户的运动而选择性地向所述一个或多个其他传感器和/或处理器提供电力。

公开(公告)号：US20110231145A1

公开(公告)日：2011-09-22

申请号：US13130780

申请日：2009-11-19

申请人： Ningjiang Chen

发明人： Ningjiang Chen

IPC分类号： G06F15/00 ,  G01P15/00

CPC分类号： A61B5/1117 ,  A61B5/7239 ,  A61B5/7242 ,  A61B2562/0219 ,  G08B21/0446

摘要： The invention relates to a method and apparatus for fall detection. According to the invention, the method for detecting the fall of an object comprises the steps of acquiring (501) a plurality of time-varying accelerations associated with a movement of said object; computing (502) a plurality of respective velocities and displacements in the direction of gravity, based on the plurality of time-varying accelerations; determining (503) lead time and return time of the movement, based on the plurality of accelerations, velocities and displacements, wherein the lead time equals a time interval from an original point of the movement to an extreme point of the movement, and the return time equals a time interval from the extreme point of the movement to a final point of the movement; and determining (504) whether the fall of said object occurs, based on whether a peak value of the velocities is larger than a predefined threshold value and whether the lead time is longer than the return time.

摘要翻译： 本发明涉及一种跌落检测方法和装置。 根据本发明，用于检测物体坠落的方法包括以下步骤：获取（501）与所述物体的移动相关联的多个时变加速度; 基于所述多个时变加速度来计算（502）重力方向上的多个相应速度和位移; 基于多个加速度，速度和位移来确定（503）前进时间和运动的返回时间，其中提前时间等于从运动的原始点到运动的最终点的时间间隔，并且返回 时间等于从运动的最终点到运动的最终点的时间间隔; 以及基于所述速度的峰值是否大于预定阈值以及所述提前期是否比所述返回时间长的步骤，确定（504）是否发生所述对象的下降。

公开(公告)号：US20090185542A1

公开(公告)日：2009-07-23

申请号：US12298595

申请日：2007-04-19

申请人： Daqing Zhang ,  Ningjiang Chen ,  Jin Wang

发明人： Daqing Zhang ,  Ningjiang Chen ,  Jin Wang

IPC分类号： H04W4/00 ,  G08C17/00

CPC分类号： H04L1/188 ,  G01D3/00 ,  H04L1/0001 ,  H04W40/10 ,  H04W40/246 ,  H04W52/0261 ,  H04W84/18 ,  Y02D70/00

摘要： Present invention is to provide a method and apparatus for controlling energy expanding of sensor network nodes, wherein the method comprises steps of: acquiring energy information, said energy information being indicative of an energy status of a node in the network; and adjusting at least one data transmission parameter accordingly based on the energy information. With present invention, on the premise that the communication capacity and power energy of sensor nodes are limited in a wireless sensor network, it is capable of efficiently utilize the network resource, save the power consumption of sensor node, and prolong the whole life of sensor network.

摘要翻译： 本发明提供一种用于控制传感器网络节点的能量扩展的方法和装置，其中所述方法包括以下步骤：获取能量信息，所述能量信息指示网络中节点的能量状态; 以及基于能量信息相应地调整至少一个数据传输参数。 本发明在无线传感器网络中传感器节点的通信能力和功率能量受到限制的前提下，能够有效利用网络资源，节省传感器节点的功耗，延长传感器的整个使用寿命 网络。

公开(公告)号：US08408041B2

公开(公告)日：2013-04-02

申请号：US12596449

申请日：2008-04-15

申请人： Warner Ten Kate ,  Ingrid Christina Maria Flinsenberg ,  Ningjiang Chen ,  Sheng Kim ,  Stephan Schlumbohm ,  Rudie Bernardus Maria Schonenberg

发明人： Warner Ten Kate ,  Ingrid Christina Maria Flinsenberg ,  Ningjiang Chen ,  Sheng Kim ,  Stephan Schlumbohm ,  Rudie Bernardus Maria Schonenberg

IPC分类号： G01N3/00 ,  G01N19/02

CPC分类号： A61B5/1117 ,  A61B2562/0219 ,  G08B21/0446

摘要： The invention relates to a fall detection system, for detecting human fall incidents. The detection system comprises a sensor module to be worn by a user, for collecting motion data of his body, for instance acceleration data; first evaluation logic for identifying a potential fall incident on the basis of an impact observed in the acceleration data; and second evaluation logic for verifying that the sensor module is actually worn by the user, at least around the time of said impact, to prevent the system from raising an alarm if only the sensor module has fallen. The second evaluation logic may comprise free fall detection means for evaluating the acceleration data on characteristics which are typical for a free falling object, such as one or more full rotation and/or a free falling phase, during which the magnitude of the acceleration data is relatively stable and small. Additionally or alternatively the second evaluation logic may comprise body proximity detection means for detecting whether the sensor module is in close proximity to the human body.

摘要翻译： 本发明涉及一种用于检测人员跌倒事故的跌倒检测系统。 该检测系统包括由用户佩戴的传感器模块，用于收集他身体的运动数据，例如加速数据; 第一评估逻辑，用于基于在加速度数据中观察到的影响来识别潜在的跌落事件; 以及至少在所述冲击时间周围用于验证传感器模块实际上被磨损的第二评估逻辑，以防止仅在传感器模块已经下降时系统引起报警。 第二评估逻辑可以包括自由落体检测装置，用于评估对于自由落体物体是典型的加速度数据，例如一个或多个完全旋转和/或自由下降阶段，在此期间加速度数据的幅度为 相对稳定和小。 附加地或替代地，第二评估逻辑可以包括身体接近检测装置，用于检测传感器模块是否紧邻人体。

公开(公告)号：US08102759B2

公开(公告)日：2012-01-24

申请号：US11720779

申请日：2005-11-30

申请人： Gang Wang ,  Sheng Jin ,  Ningjiang Chen ,  Qinfeng Zhang

发明人： Gang Wang ,  Sheng Jin ,  Ningjiang Chen ,  Qinfeng Zhang

IPC分类号： G01R31/08

CPC分类号： H04W40/24 ,  H04L45/02 ,  H04L45/28 ,  H04L45/46 ,  H04L67/12 ,  H04L69/329 ,  H04L69/40 ,  H04W52/0219 ,  H04W52/0277 ,  H04W88/02 ,  Y02D70/22

摘要： The present invention provides a method for finding a backup node for a node in a sensor network. Firstly, determining a node which is in a state of waiting for being an agent node among a plurality of nodes adjacent to the node to be backed up for using the agent node to find the backup node. The states of waiting for being backed up is that the quantity of electricity of the node to be backed up drops below a preset value. According to the present invention, the node to be backed up does not need to communicate with a large number of nodes. It only needs to determine an agent node among the adjacent notes to do the substantial search for a backup node.

摘要翻译： 本发明提供了一种用于寻找传感器网络中节点的备份节点的方法。 首先，确定处于与要备份的节点相邻的多个节点之中等待代理节点的状态的节点，以使用代理节点来查找备份节点。 等待备份的状态是要备份的节点的电量低于预设值。 根据本发明，要备份的节点不需要与大量的节点进行通信。 它只需要确定相邻注释中的代理节点，以便对备份节点进行大量搜索。

公开(公告)号：US20090228876A1

公开(公告)日：2009-09-10

申请号：US10596673

申请日：2004-12-15

申请人： Ningjiang Chen ,  Xin Chen ,  Yongqin Zeng

发明人： Ningjiang Chen ,  Xin Chen ,  Yongqin Zeng

IPC分类号： G06F9/44

CPC分类号： H04L65/607 ,  H04L29/06027 ,  H04L65/4092 ,  H04L65/80 ,  H04L67/325 ,  H04L67/34

摘要： The present invention provides method and apparatus for dynamically updating and processing the multimedia script (510) for network servers (110). By replacing a responding software module which responds to an activating instruction (m, m1, m2, . . . ) with the time-based responding software module (520, 530), the playing of the specific multimedia element no longer depends on the activating instructions (m, m1, m2) frequently inserted by program editors to be activated, but is automatically activated based on the specific time. The method and the device provided by the present invention reduces the redundant information of a multimedia playing system, avoids the situation that the corresponding multimedia element can not be displayed because the user terminal (130) misses receiving the activating instruction (m, m1, m2, . . . ).

摘要翻译： 本发明提供用于动态地更新和处理网络服务器（110）的多媒体脚本（510）的方法和装置。 通过用基于时间的响应软件模块（520,530）替换响应于激活指令（m，m1，m2，...）的响应软件模块，特定多媒体元素的播放不再取决于激活 指令（m，m1，m2）由程序编辑器频繁插入要激活，但会根据具体时间自动激活。 本发明提供的方法和装置减少了多媒体播放系统的冗余信息，避免了由于用户终端（130）错过接收到激活指令（m，m1，m2）而不能显示相应多媒体元素的情况 ，...）。

公开(公告)号：US09119567B2

公开(公告)日：2015-09-01

申请号：US13320463

申请日：2010-06-08

申请人： Ningjiang Chen ,  Sheng Jin

发明人： Ningjiang Chen ,  Sheng Jin

IPC分类号： A61B5/11 ,  G01L11/00 ,  G06F17/40 ,  G06F19/00

CPC分类号： A61B5/1117 ,  G01L11/004 ,  G06F17/40 ,  G06F19/00

摘要： This invention relates to methods and apparatus for detecting a fall of a user, especially to methods and apparatus for detecting a fall of a user by using pressure sensors. This invention discloses an apparatus for detecting a fall of a user, and the apparatus comprises first and second pressure sensors configured to obtain first and second data values of atmosphere pressure and intended to be worn on the body of the user, and a processor configured to derive a third data value of atmosphere pressure for determining whether a fall occurs or not from the first and second data values of atmosphere pressure. The first and second pressure sensors are configured in a way such that preset orientations of the first and second pressure sensors are opposite to each other. In this way, the weight of measuring elements comprised in the first and second pressure sensors have opposite effects on the measured atmosphere pressure, and thus (?) the measurement error caused by pressure sensor orientation variation can be reduced or even eliminated.

摘要翻译： 本发明涉及用于检测用户坠落的方法和装置，特别涉及用于通过使用压力传感器来检测用户坠落的方法和装置。 本发明公开了一种用于检测用户坠落的装置，该装置包括：第一和第二压力传感器，被配置为获得大气压力的第一和第二数据值，并且意图佩戴在使用者的身体上;以及处理器， 导出大气压力的第三数据值，用于根据大气压的第一和第二数据值来确定是否发生跌落。 第一和第二压力传感器被配置成使得第一和第二压力传感器的预定取向彼此相反。 以这种方式，包含在第一和第二压力传感器中的测量元件的重量对测量的大气压力具有相反的影响，因此可以减少或甚至消除由压力传感器取向变化引起的测量误差。