WO2017096827A1 - 人体跌倒事件的检测方法、装置及移动终端 - Google Patents

人体跌倒事件的检测方法、装置及移动终端 Download PDF

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Publication number
WO2017096827A1
WO2017096827A1 PCT/CN2016/088733 CN2016088733W WO2017096827A1 WO 2017096827 A1 WO2017096827 A1 WO 2017096827A1 CN 2016088733 W CN2016088733 W CN 2016088733W WO 2017096827 A1 WO2017096827 A1 WO 2017096827A1
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WIPO (PCT)
Prior art keywords
acceleration
mobile terminal
preset
adjacent
alarm
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PCT/CN2016/088733
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English (en)
French (fr)
Inventor
孙鹏
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Priority to US15/242,067 priority Critical patent/US20170156675A1/en
Publication of WO2017096827A1 publication Critical patent/WO2017096827A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
    • G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438—Sensor means for detecting
    • G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait

Definitions

  • the present invention relates to the field of mobile application technologies, and in particular, to a method, device, and user terminal for detecting a human body fall event.
  • the embodiments of the present invention aim to provide a detection scheme for a human fall event, and solve the timely detection of a fall event in a human body.
  • a method of detecting a human fall event includes: obtaining an acceleration value from an acceleration sensor of the mobile terminal; calculating whether the acceleration suddenly increases according to the acquired acceleration value and remaining at zero within a preset time after the sudden increase; and if yes, determining that a human fall event occurs And sending an alarm message to the emergency contact preset in the mobile terminal, wherein the alarm information carries the current location information.
  • the alarm information may also include current time information.
  • sending the alarm information to the emergency contact preset in the mobile terminal may be: sending an alarm message to the emergency contact preset in the mobile terminal by using a short message or an automatic voice.
  • calculating whether the acceleration suddenly increases according to the acquired acceleration value and remaining at zero within a preset time after the sudden increase may include: determining, for the current acceleration value and the adjacent two acceleration values of the previous acceleration value, Whether the difference between the two adjacent acceleration values is greater than or equal to a preset value; if the difference between the two adjacent acceleration values is greater than or equal to a preset value, determining that the adjacent Whether there are two consecutive acceleration values of the adjacent acceleration values after the two acceleration values are zero; and if there are at least two acceleration values adjacent to each other after the adjacent two acceleration values are zero, determining that the acceleration suddenly increases It is large and remains at zero for a preset time after a sudden increase.
  • sending the alarm information to the emergency contact preset in the mobile terminal may be: after the alarm information is sent to the emergency contact preset in the mobile terminal for the first time, the preset timer is started; and when the timing is When the device expires, the alarm information is sent to the emergency contact preset in the mobile terminal for the second time.
  • a detecting device for a human fall event is provided.
  • the device is applied to a mobile device, and may include: an acquisition module, configured to acquire an acceleration value from an acceleration sensor of the mobile terminal; and a calculation module, configured to calculate, according to the acquired acceleration value, whether the acceleration suddenly increases and after the sudden increase The set time is kept at zero; and the alarm module is configured to determine that a human fall event occurs and to the mobile terminal if the calculated acceleration is suddenly increased and remains at zero for a preset time after the sudden increase
  • the preset emergency contact sends an alarm message, wherein the alarm information carries current location information.
  • the alarm information may also include current time information.
  • the alarm module is further configured to: send an alarm message to the emergency contact preset in the mobile terminal by using a short message or an automatic voice.
  • the calculation module may include: a first determining module, configured to determine, according to the current acceleration value and the adjacent two acceleration values of the previous acceleration value, whether the difference between the two adjacent acceleration values is The second judging module is configured to determine whether the two adjacent acceleration values are present after the difference between the two adjacent acceleration values is greater than or equal to a preset value. At least two acceleration values that are consecutively adjacent are zero; and a determination module for if After the adjacent two acceleration values, there are at least two acceleration values that are consecutively adjacent to zero, and it is determined that the acceleration suddenly increases and remains zero for a preset time after the sudden increase.
  • the alarm module is further configured to: after the alarm information is sent to the emergency contact preset in the mobile terminal for the first time, start a preset timer; and when the timer expires, move to the second time The emergency contact preset in the terminal sends the alarm information.
  • a mobile terminal may include: a positioning module, configured to acquire geographic location information of the mobile terminal; an acceleration sensor configured to acquire an acceleration value of the mobile terminal; and a sensor coprocessor configured to acquire an acceleration value from the acceleration sensor of the mobile terminal, and according to the The acquired acceleration value calculates whether the acceleration suddenly increases and remains at zero within a preset time after the sudden increase, and if so, determines that a human fall event occurs, and sends a notification message of the human fall event to the application processor; the application processor, For acquiring the current location information from the positioning module after receiving the notification message of the human body fall event, sending the alarm information carrying the current location information to the modem, and the modem for sending the alarm information to the emergency contact preset in the mobile terminal .
  • the embodiment of the invention provides a method for detecting a human body fall event, which uses the mobile terminal to continuously detect a human body fall event, and can send the current location information to a preset emergency contact in the mobile terminal once a human body falls event occurs. Therefore, it is possible to get people in danger to get help in time and reduce the harm to the human body.
  • FIG. 1 shows a flow chart of a method for detecting a human fall event according to an embodiment of the present invention
  • FIG. 2 illustrates a flow chart of a method of detecting an acceleration corresponding to a human fall event, in accordance with an embodiment of the present invention
  • FIG. 3 is a block diagram showing a detecting device for a human fall event according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram showing the structure of a mobile terminal according to an embodiment of the present invention, which can be used to detect a human body fall event;
  • FIG. 5 is a block diagram schematically showing a computing device for performing a detection method of a human fall event according to an embodiment of the present invention
  • Fig. 6 schematically shows a storage unit for holding or carrying program code for implementing a detection method of a human fall event according to an embodiment of the present invention.
  • FIG. 1 there is shown a flow chart of a method 100 of detecting a human fall event in accordance with an embodiment of the present invention.
  • step S110 an acceleration value is acquired from an acceleration sensor of the mobile terminal.
  • step S120 it is calculated whether the acceleration suddenly increases according to the acquired acceleration value and remains at zero for a preset time after the sudden increase.
  • the acceleration value suddenly increases during the sudden fall of the human body. After the human body falls to the ground, the acceleration value will become zero. If the human body has been in a falling state, Then the acceleration value will remain at zero and will remain motionless. Therefore, it is possible to detect whether a human fall event occurs by using a change in the acceleration value of the human body.
  • the mobile terminal is worn by the human body, and the information such as the motion path, the motion speed, the acceleration, and the like is synchronized with the motion path, the motion speed, the acceleration, and the like of the human body. Therefore, the human body can be detected by detecting the acceleration change of the mobile terminal. The acceleration changes.
  • step S130 if the calculation result in step S120 is YES, it is determined that a human body fall event occurs, and the alarm information is transmitted to the emergency contact preset in the mobile terminal, wherein the alarm information carries the current location information. In this way, the emergency contact can know the human fall event in time and can know the geographical location of the down event.
  • the alert information also includes current time information for the mobile terminal such that the emergency contact can know the exact time at which the fall event occurred.
  • the alert information may be sent to an emergency contact preset in the mobile terminal by text message, automatic voice, or any other suitable means supported by the mobile terminal.
  • step S120 in the method 100 of Figure 1, which may be used to detect acceleration corresponding to a human fall event.
  • step S122 it is determined whether the difference between the two adjacent acceleration values is greater than or equal to a preset value for the two adjacent acceleration values of the current acceleration value and the previously acquired acceleration value.
  • step S124 if the difference between the two adjacent acceleration values is greater than or equal to the preset value, it is determined whether there are at least two consecutive adjacent acceleration values after the adjacent two acceleration values. Zero.
  • step S126 if there are consecutively adjacent at least two acceleration values being zero after the adjacent two acceleration values, it is determined that the acceleration suddenly increases and remains zero for a preset time after the sudden increase.
  • a control curve can be drawn according to the aforementioned acceleration change pattern of the human body in the event of a fall event, which appears as a sharp peak that falls nearly linearly to zero after a sudden pull-up, and remains unchanged for a period of time at zero.
  • the detection of the acceleration corresponding to the human body fall event may also be: detecting and recording the human body acceleration value in the most recent preset time period, and comparing the recorded acceleration value in the preset time period with the foregoing comparison curve, in accordance with the above In the case of a control curve, it is determined that a human fall event has occurred.
  • the emergency message may be sent to the emergency contact more than once, preventing the emergency contact from neglecting to view the alarm message due to busyness when the alarm message (such as a short message) is received for the first time or the emergency contact fails to listen.
  • An interval of resending the alarm message can be set, for example starting a timer in the mobile terminal. In this way, as much as possible, ensure that emergency contacts can view the alarm information in a timely manner.
  • step S120 if the result of the calculation in step S120 is NO, the process returns to step S110 to enter the continue detection state.
  • FIG. 3 shows a block diagram of a detection device 300 for a human fall event in accordance with an embodiment of the present invention.
  • the detecting device 300 includes: an obtaining module 310, configured to acquire an acceleration value from an acceleration sensor of the mobile terminal; and a calculating module 320, configured to calculate, according to the acquired acceleration value, whether the acceleration is sudden Increasing and remaining at zero for a preset time after a sudden increase; and an alarm module 330 for if the calculated acceleration is suddenly increased and remains at zero for a preset time after the sudden increase, then Determining that a human fall event occurs, and transmitting an alarm message to an emergency contact preset in the mobile terminal, wherein the alarm information carries current location information.
  • each of the modules recited in apparatus 300 corresponds to each of the steps in method 100 described with reference to FIG.
  • the operations and features described above with respect to FIG. 1 are equally applicable to apparatus 300 and the modules included therein, and are not described herein.
  • the calculating module 320 may further include: a first determining module, configured to determine the adjacent two for the current acceleration value and the adjacent two acceleration values of the previous acceleration value Whether the difference between the acceleration values is greater than or equal to the preset value; the second determining module is configured to determine, if the difference between the two adjacent acceleration values is greater than or equal to a preset value, Whether there are two consecutive acceleration values of at least two acceleration values after the two acceleration values; and a determining module, if there are at least two acceleration values adjacent to each other after the adjacent two acceleration values are zero It is determined that the acceleration suddenly increases and remains at zero for a preset time after the sudden increase.
  • the detecting method 100 and the human fall event detecting device 300 proposed by the embodiments of the present invention may be implemented as software, hardware or a combination of software and software.
  • the hardware can be transferred to an integrated circuit (ASIC), digital signal processor (DSP), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, micro, designed to perform the above functions.
  • ASIC integrated circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • FPGA field programmable gate array
  • processor controller, micro, designed to perform the above functions.
  • ASIC integrated circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • FPGA field programmable gate array
  • Software can be implemented by modules that perform the above functions.
  • Software can be stored in the storage unit and executed by the processor.
  • various units known to those skilled in the art may be employed.
  • FIG. 4 shows a schematic diagram of a configuration of a mobile terminal 400 that can be used to detect a human fall event, in accordance with an embodiment of the present invention.
  • the mobile terminal 400 can include an application processor 410, a positioning module 401, an acceleration sensor 402, a sensor coprocessor 403, and a modem 404.
  • the positioning module 401 is configured to acquire geographic location information of the mobile terminal.
  • the acceleration sensor 402 is used to collect the acceleration value of the mobile terminal.
  • the sensor coprocessor 403 is connected to the acceleration sensor 402 for acquiring an acceleration value from the acceleration sensor 402 of the mobile terminal, and according to the acquired acceleration value. It is calculated whether the acceleration suddenly increases and remains at zero within a preset time after the sudden increase, and if so, it is determined that a human fall event occurs, and a notification message of the human fall event is transmitted to the application processor.
  • the application processor 410 is connected to the sensor coprocessor 403 for acquiring current location information from the positioning module 401 after receiving the notification message of the human body fall event, and transmitting alarm information carrying the current location information to the modem.
  • the modem 404 is coupled to the application processor 410 for transmitting alert information to emergency contacts preset in the mobile terminal.
  • the mobile terminal 400 can also include an exemplary memory 406. It should be understood that the various components of mobile terminal 400 illustrated in FIG. 4 are merely exemplary in order to avoid obscuring embodiments of the invention, and do not show other components, such as memory 406, that mobile terminal 400 may include, including, for example, Display, input buttons, various communication interfaces, and antennas.
  • the sensor coprocessor 403 can employ a Sensor Hub (Sensor Hub) DSP.
  • the Sensor Hub DSP is an always-on low-power chip that is equipped with almost every mobile terminal. It can reduce the operating load of the mobile terminal's main processor while satisfying the continuous detection of the acceleration value of the mobile terminal. Demand.
  • the aforementioned method for detecting a human fall event 100 and the detecting device 300 for a human fall event may be implemented at the sensor coprocessor 403 of the mobile terminal without adding an extra to the mobile terminal.
  • Component or software module may be implemented as components other than the sensor coprocessor 403 in the mobile terminal, such as at an acceleration sensor or as a new component.
  • the mobile terminal 400 can be, for example, a cell phone, a tablet, a portable computer, a smart watch, a Bluetooth headset, or any other suitable portable device.
  • modules in the devices of the embodiments can be adaptively changed and placed in one or more devices different from the embodiment.
  • the modules or units or components of the embodiments may be combined into one module or unit or component, and further they may be divided into a plurality of sub-modules or sub-units or sub-components.
  • any combination of the features disclosed in the specification, including the accompanying claims, the abstract and the drawings, and any methods so disclosed, or All processes or units of the device are combined.
  • Each feature disclosed in this specification (including the accompanying claims, the abstract and the drawings) may be replaced by alternative features that provide the same, equivalent or similar purpose.
  • the various component embodiments of the present invention may be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof.
  • a microprocessor or digital signal processor may be used in practice to implement some or all of the functionality of some or all of the components in accordance with embodiments of the present invention.
  • the invention can also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing some or all of the methods described herein.
  • a program implementing the invention may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal can It is available for download from an Internet website, or on a carrier signal, or in any other form.
  • Figure 5 illustrates a computing device that can implement a method of detecting a human fall event in accordance with the present invention.
  • the computing device conventionally includes a processor 510 and a computer program product or computer readable medium in the form of a storage device 520.
  • Storage device 520 can be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
  • Storage device 520 has a storage space 530 that stores program code 531 for performing any of the method steps described above.
  • storage space 530 storing program code may include various program code 531 for implementing various steps in the above methods, respectively.
  • the program code can be read from or written to one or more computer program products.
  • These computer program products include program code carriers such as a hard disk, a compact disk (CD), a memory card, or a floppy disk.
  • a computer program product is typically a portable or fixed storage unit such as that shown in FIG.
  • the storage unit may have storage segments, storage spaces, and the like that are similarly arranged to storage device 520 in the computing device of FIG.
  • the program code can be compressed, for example, in an appropriate form.
  • the storage unit comprises computer readable code 531 ' for performing the steps of the method according to the invention, ie code that can be read by a processor such as 510, which when executed by the computing device causes the computing device Perform the various steps in the method described above.

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Abstract

一种人体跌倒事件的检测方法（100）、检测装置（300）及移动终端（400）。检测方法（100）包括：从移动终端（400）的加速度传感器（402）获取加速度值（S110）；根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零（S120）；如果是，则确定发生人体跌倒事件，并向移动终端（400）中预设的紧急联系人发送报警信息（S130），其中所述报警信息携带有当前位置信息。检测装置（300）包括获取模块（310）、计算模块（320）以及报警模块（330）。该检测方法（100）和检测装置（300）能够利用移动终端（400）及时检测人体的跌倒事件。

Description

人体跌倒事件的检测方法、装置及移动终端
相关申请的交叉参考
本申请要求于2015年12月8日提交中国专利局、申请号为2015108969893、发明名称为“人体跌倒事件的检测方法、装置及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及移动应用技术领域，具体涉及一种人体跌倒事件的检测方法、装置及用户终端。
背景技术
在我们的日常生活中，经常能看到某某人摔倒，路人没人敢救助的新闻，有时甚至因为错过了宝贵的施救时间而导致了非常遗憾的后果。一方面，我们要通过道德谴责、法律制裁来避免这种事情的发生，另一方面，我们也在思考如何采用技术手段来解决这样的问题。
目前，移动终端(如，手机)已经成为人们最常携带的随身物品。现有技术中，还无法实现利用移动终端检测人体的摔倒事件的方案。
发明内容
有鉴于此，本发明实施例旨在提供一种人体跌倒事件的检测方案，解决对人体发生跌倒事件的及时检测。
根据本发明的一个方面，提供一种人体跌倒事件的检测方法。该方法包括：从移动终端的加速度传感器获取加速度值；根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零；以及如果是，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。
进一步地，报警信息还可以包括当前时间信息。
进一步地，向移动终端中预设的紧急联系人发送报警信息可以为：通过短信或者自动语音向移动终端中预设的紧急联系人发送报警信息。
进一步地，根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零可以包括：针对当前加速度值和前一次加速度值的相邻的两个加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值；如果所述相邻的两个加速度值之间的差值大于或等于预设值，判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零；以及如果在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
进一步地，向移动终端中预设的紧急联系人发送报警信息可以为：在第一次向移动终端中预设的紧急联系人发送报警信息之后，启动预设的定时器；以及当所述定时器期满时，第二次向移动终端中预设的紧急联系人发送所述报警信息。
根据本发明的另一个方面，提供一种人体跌倒事件的检测装置。该装置应用于移动装置，并且可以包括：获取模块，用于从移动终端的加速度传感器获取加速度值；计算模块，用于根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零；以及报警模块，用于如果所计算的加速度是突然增大的且在突然增大后的预设时间内保持为零，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。
进一步地，报警信息还可以包括当前时间信息。
进一步地，报警模块进一步用于：通过短信或者自动语音向移动终端中预设的紧急联系人发送报警信息。
进一步地，计算模块可以包括：第一判断模块，用于针对当前加速度值和前一次的加速度值的相邻的两个加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值；第二判断模块，用于如果所述相邻的两个加速度值之间的差值大于或等于预设值，判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零；以及确定模块，用于如果 在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
进一步地，报警模块进一步用于：在第一次向移动终端中预设的紧急联系人发送报警信息之后，启动预设的定时器；以及当所述定时器期满时，第二次向移动终端中预设的紧急联系人发送所述报警信息。
根据本发明的又一个方面，提供一种移动终端。该移动终端可以包括：定位模块，用于获取移动终端的地理位置信息；加速度传感器，用于采集移动终端的加速度值；传感器协处理器，用于从移动终端的加速度传感器获取加速度值，并根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零，如果是，确定发生人体跌倒事件，向应用处理器发送人体跌倒事件的通知消息；应用处理器，用于在接收到人体跌倒事件的通知消息之后从定位模块中获取当前位置信息，向调制解调器发送携带当前位置信息的报警信息；以及调制解调器，用于向移动终端中预设的紧急联系人发送报警信息。
本发明实施例提供一种人体跌倒事件的检测方法，利用移动终端持续地对人体跌倒事件进行检测，并且一旦发生人体发生跌倒事件，可以将当前位置信息发送给移动终端中预设的紧急联系人，从而可能使发生危险的人及时得到救助，减少对人体的危害。
附图概述
图1示出根据本发明一实施例的人体跌倒事件的检测方法的流程图；
图2示出根据本发明一实施例的检测人体跌倒事件所对应的加速度的方法的流程图；
图3示出根据本发明一实施例的人体跌倒事件的检测装置的框图；
图4示出根据本发明一实施例的移动终端的构成示意图，该移动终端能够用于检测人体跌倒事件；
图5示意性地示出了用于执行根据本发明实施例的人体跌倒事件的检测方法的计算设备的框图；以及
图6示意性地示出了用于保持或者携带实现根据本发明实施例的人体跌倒事件的检测方法的程序代码的存储单元。
本发明的较佳实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
参考图1，其示出根据本发明一实施例的人体跌倒事件的检测方法100的流程图。
在步骤S110，从移动终端的加速度传感器获取加速度值。
在步骤S120，根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零。
一方面，人体在发生跌倒事件时，其加速度会遵循如下模式：在人体突然跌倒的过程中加速度值突然增大，在人体倒地后，加速度值将变为零，若人体一直处于跌倒状态，则加速度值将保持为零并且持续不动。因此，可以利用人体加速度值的变化情况来检测人体跌倒事件是否发生。另一方面，移动终端被人体随身佩戴，并且其运动路径、运动速度、加速度等信息与人体的运动路径、运动速度、加速度等信息同步，因此，可以通过检测移动终端的加速度变化来检测人体的加速度变化。
在步骤S130，如果在步骤S120中的计算结果为是，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。这样，该紧急联系人可以及时获知人体跌倒事件，并且能够知道跌势事件发生的地理位置。
在一个实施例中，报警信息还包括移动终端的当前时间信息，从而紧急联系人可以获知跌倒事件发生的确切时间。
在一个实施例中，可以通过短信、自动语音、或者移动终端能够支持的任何其他适当的方式向移动终端中预设的紧急联系人发送报警信息。
参考图2，其示出了根据图1所示的方法100中的步骤S120的一个示例性实现方法的流程图，此方法可以用于检测人体跌倒事件所对应的加速度。
在步骤S122，针对当前加速度值和前一次获取的加速度值的这两个相邻的加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值。
在步骤S124，如果所述相邻的两个加速度值之间的差值大于或等于预设值，则判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零。
在步骤S126，如果在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
在一个实施例中，可以根据前述的人体在发生跌倒事件时加速度变化模式绘制对照曲线，其表现为突然拉高后近乎直线下降到零的尖峰，并且在零值保持不变持续一段时间。人体跌倒事件所对应的加速度的检测还可以为：检测并记录最近的预设时段内的人体加速度值，并且将记录的在该预设时段内的加速度值与前述对照曲线进行对比，在符合上述对照曲线的情况下，确定发生人体跌倒事件。
在一个实施例中，可以不止一次地向紧急联系人发送报警消息，防止紧急联系人在第一次收到报警消息(比如短信)时由于忙碌而忽视查看该报警信息或者紧急联系人未能收听到新来的第一次的报警短信提醒音等诸如此类的可能性。可以设置重新发送报警消息的间隔时间段，例如在移动终端中启动一个定时器。这样，尽可能确保紧急联系人能够及时地查看报警信息。
根据本发明的实施方式，如图1所示，如果在步骤S120中的计算结果为否，则返回步骤S110，进入继续检测状态。
图3示出了根据本发明一实施例的人体跌倒事件的检测装置300的框图。检测装置300包括：获取模块310，用于从移动终端的加速度传感器获取加速度值；计算模块320，用于根据获取的加速度值计算加速度是否突然 增大且在突然增大后的预设时间内保持为零；以及报警模块330，用于如果所计算的加速度是突然增大的且在突然增大后的预设时间内保持为零，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。
应当理解，装置300中记载的每个模块与参考图1描述的方法100中的每个步骤相对应。由此，上文针对图1描述的操作和特征同样适用于装置300及其中包含的模块，在此不再赘述。
作为示例，在一个实施例中，计算模块320可以进一步包括：第一判断模块，用于针对当前加速度值和前一次的加速度值的相邻的两个加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值；第二判断模块，用于如果所述相邻的两个加速度值之间的差值大于或等于预设值，判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零；以及确定模块，用于如果在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
应当理解，本发明实施方式所提出的检测方法100和人体跌倒事件的检测装置300可以被实现为软件、硬件或者软件和软件的组合。硬件可通过被设计来执行上述功能的转用集成电路(ASIC)、数字信号处理器(DSP)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、处理器、控制器、微处理器、其他电子单元或其组合来实现。软件可通过执行上述功能的模块来实现。软件可被存储在存储单元中并由处理器运行。作为存储单元或处理器，可采用本领域技术人员公知的各种单元。
图4示出了根据本发明实施方式的移动终端400的构成示意图，该移动终端能够用于检测人体跌倒事件。如图4所示，移动终端400可以包括应用处理器410、定位模块401、加速度传感器402、传感器协处理器403和调制解调器404。
定位模块401用于获取移动终端的地理位置信息。加速度传感器402用于采集移动终端的加速度值。传感器协处理器403与加速度传感器402相连，用于从移动终端的加速度传感器402获取加速度值，并根据获取的加速度值 计算加速度是否突然增大且在突然增大后的预设时间内保持为零，如果是，确定发生人体跌倒事件，向应用处理器发送人体跌倒事件的通知消息。应用处理器410与传感器协处理器403相连，用于在接收到人体跌倒事件的通知消息之后从定位模块401中获取当前位置信息，向调制解调器发送携带当前位置信息的报警信息。调制解调器404与应用处理器410相连，用于向移动终端中预设的紧急联系人发送报警信息。
如图4所示，移动终端400还可以包括示例性的存储器406。应当理解，图4所示的移动终端400的各个部件仅是示例性的，为了避免对发明的实施方式造成模糊，而没有示出移动终端400所可能包括的比如存储器406的其他部件，例如包括显示器、输入按键、各种通信接口以及天线等。
在一个实施例中，传感器协处理器403可以采用感测器中枢(Sensor Hub)DSP。Sensor Hub DSP是几乎每个移动终端都配备的常时(Always-on)开启的低功耗芯片，可以在降低移动终端主处理器的运作负担的同时，满足对于移动终端的加速度值的持续检测的需求。
在一个实施例中，根据本发明实施方式的前述人体跌倒事件的检测方法100和人体跌倒事件的检测装置300可以实施在移动终端的传感器协处理器403处，而不必在移动终端中增加额外的部件或者软件模块。然而，应当理解，前述检测方法100和检测装置300也可以被实现移动终端中的传感器协处理器403之外的部件，例如实施在加速度传感器处或者实施为一个新增的部件。
移动终端400例如可以是手机、平板电脑、便携式计算机、智能手表、蓝牙耳机或者任何其他适当的便携式设备。
在此提供的算法和显示不与任何特定计算机、虚拟系统或者其它设备固有相关。各种通用系统也可以与基于在此的示教一起使用。根据上面的描述，构造这类系统所要求的结构是显而易见的。此外，本发明也不针对任何特定编程语言。应当明白，可以利用各种编程语言实现在此描述的本发明的内容，并且上面对特定语言所做的描述是为了披露本发明的最佳实施方式。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本发明的实施例可以在没有这些具体细节的情况下实践。在一些实例中，并未 详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
类似地，应当理解，为了精简本公开并帮助理解各个发明方面中的一个或多个，在上面对本发明的示例性实施例的描述中，本发明的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。然而，并不应将该公开的方法解释成反映如下意图：即所要求保护的本发明要求比在每个权利要求中所明确记载的特征更多的特征。更确切地说，如下面的权利要求书所反映的那样，发明方面在于少于前面公开的单个实施例的所有特征。因此，遵循具体实施方式的权利要求书由此明确地并入该具体实施方式，其中每个权利要求本身都作为本发明的单独实施例。
本领域那些技术人员可以理解，可以对实施例中的设备中的模块进行自适应性地改变并且把它们设置在与该实施例不同的一个或多个设备中。可以把实施例中的模块或单元或组件组合成一个模块或单元或组件，以及此外可以把它们分成多个子模块或子单元或子组件。除了这样的特征和/或过程或者单元中的至少一些是相互排斥之外，可以采用任何组合对本说明书(包括伴随的权利要求、摘要和附图)中公开的所有特征以及如此公开的任何方法或者设备的所有过程或单元进行组合。除非另外明确陈述，本说明书(包括伴随的权利要求、摘要和附图)中公开的每个特征可以由提供相同、等同或相似目的的替代特征来代替。
此外，本领域的技术人员能够理解，尽管在此所述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征，但是不同实施例的特征的组合意味着处于本发明的范围之内并且形成不同的实施例。例如，在下面的权利要求书中，所要求保护的实施例的任意之一都可以以任意的组合方式来使用。
本发明的各个部件实施例可以以硬件实现，或者以在一个或者多个处理器上运行的软件模块实现，或者以它们的组合实现。本领域的技术人员应当理解，可以在实践中使用微处理器或者数字信号处理器(DSP)来实现根据本发明实施例中的一些或者全部部件的一些或者全部功能。本发明还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者装置程序(例如，计算机程序和计算机程序产品)。这样的实现本发明的程序可以存储在计算机可读介质上，或者可以具有一个或者多个信号的形式。这样的信号可 以从因特网网站上下载得到，或者在载体信号上提供，或者以任何其他形式提供。
例如，图5示出了可以实现根据本发明的人体跌倒事件的检测方法的计算设备。该计算设备传统上包括处理器510和以存储设备520形式的计算机程序产品或者计算机可读介质。存储设备520可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。存储设备520具有存储用于执行上述方法中的任何方法步骤的程序代码531的存储空间530。例如，存储程序代码的存储空间530可以包括分别用于实现上面的方法中的各种步骤的各个程序代码531。这些程序代码可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。这些计算机程序产品包括诸如硬盘、紧致盘(CD)、存储卡或者软盘之类的程序代码载体。这样的计算机程序产品通常为例如图6所示的便携式或者固定存储单元。该存储单元可以具有与图5的计算设备中的存储设备520类似布置的存储段、存储空间等。程序代码可以例如以适当形式进行压缩。通常，存储单元包括用于执行根据本发明的方法步骤的计算机可读代码531＇，即可以由诸如510之类的处理器读取的代码，当这些代码由计算设备运行时，导致该计算设备执行上面所描述的方法中的各个步骤。
应该注意的是上述实施例对本发明进行说明而不是对本发明进行限制，并且本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本发明可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。

Claims (11)

  1. 一种人体跌倒事件的检测方法，其特征在于，包括：
    从移动终端的加速度传感器获取加速度值；
    根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零；以及
    如果是，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述报警信息还包括当前时间信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述向移动终端中预设的紧急联系人发送报警信息为：
    通过短信或者自动语音向移动终端中预设的紧急联系人发送报警信息。
  4. 根据权利要求1或2所述的方法，其特征在于，所述根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零包括：
    针对当前加速度值和前一次加速度值的相邻的两个加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值；
    如果所述相邻的两个加速度值之间的差值大于或等于预设值，判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零；以及
    如果在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
  5. 根据权利要求1或2所述的方法，其特征在于，所述向移动终端中预设的紧急联系人发送报警信息为：
    在第一次向移动终端中预设的紧急联系人发送报警信息之后，启动预设的定时器；以及
    当所述定时器期满时，第二次向移动终端中预设的紧急联系人发送所述 报警信息。
  6. 一种人体跌倒事件的检测装置，其特征在于，应用于移动终端，所述装置包括：
    获取模块，用于从移动终端的加速度传感器获取加速度值；
    计算模块，用于根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零；以及
    报警模块，用于如果所计算的加速度是突然增大的且在突然增大后的预设时间内保持为零，则确定发生人体跌倒事件，并向移动终端中预设的紧急联系人发送报警信息，其中所述报警信息携带有当前位置信息。
  7. 根据权利要求6所述的装置，其特征在于，所述报警信息还包括当前时间信息。
  8. 根据权利要求6或7所述的装置，其特征在于，所述报警模块进一步用于：通过短信或者自动语音向移动终端中预设的紧急联系人发送报警信息。
  9. 根据权利要求6或7所述的装置，其特征在于，所述计算模块包括：
    第一判断模块，用于针对当前加速度值和前一次的加速度值的相邻的两个加速度值，判断所述相邻的两个加速度值之间的差值是否大于或等于预设值；
    第二判断模块，用于如果所述相邻的两个加速度值之间的差值大于或等于预设值，判断在所述相邻的两个加速度值之后是否存在连续相邻的至少两个加速度值为零；以及
    确定模块，用于如果在所述相邻的两个加速度值之后存在连续相邻的至少两个加速度值为零，确定加速度突然增大且在突然增大后的预设时间内保持为零。
  10. 根据权利要求6或7所述的装置，其特征在于，所述报警模块进一步用于：在第一次向移动终端中预设的紧急联系人发送报警信息之后，启动预设的定时器；以及
    当所述定时器期满时，第二次向移动终端中预设的紧急联系人发送所述 报警信息。
  11. 一种移动终端，其特征在于，包括：
    定位模块，用于获取移动终端的地理位置信息；
    加速度传感器，用于采集移动终端的加速度值；
    传感器协处理器，用于从移动终端的加速度传感器获取加速度值，并根据获取的加速度值计算加速度是否突然增大且在突然增大后的预设时间内保持为零，如果是，确定发生人体跌倒事件，向应用处理器发送人体跌倒事件的通知消息；
    应用处理器，用于在接收到人体跌倒事件的通知消息之后从定位模块中获取当前位置信息，向调制解调器发送携带当前位置信息的报警信息；以及
    调制解调器，用于向移动终端中预设的紧急联系人发送所述报警信息。
PCT/CN2016/088733 2015-12-08 2016-07-05 人体跌倒事件的检测方法、装置及移动终端 Ceased WO2017096827A1 (zh)

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