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WO2015027955A1 - 一种蓝牙跌倒报警鞋垫 - Google Patents

一种蓝牙跌倒报警鞋垫 Download PDF

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Publication number
WO2015027955A1
WO2015027955A1 PCT/CN2014/085691 CN2014085691W WO2015027955A1 WO 2015027955 A1 WO2015027955 A1 WO 2015027955A1 CN 2014085691 W CN2014085691 W CN 2014085691W WO 2015027955 A1 WO2015027955 A1 WO 2015027955A1
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WO
WIPO (PCT)
Prior art keywords
insole
bluetooth
alarm
fall
angle
Prior art date
Application number
PCT/CN2014/085691
Other languages
English (en)
French (fr)
Inventor
魏琴
喻建斌
Original Assignee
广东乐源数字技术有限公司
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Publication date
Application filed by 广东乐源数字技术有限公司 filed Critical 广东乐源数字技术有限公司
Priority to US14/909,737 priority Critical patent/US20160157756A1/en
Priority to EP14841051.7A priority patent/EP3039981A4/en
Publication of WO2015027955A1 publication Critical patent/WO2015027955A1/zh

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • 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
    • A61B5/1116—Determining posture transitions
    • A61B5/1117—Fall detection
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0024—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system for multiple sensor units attached to the patient, e.g. using a body or personal area network
    • 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
    • A61B5/1121—Determining geometric values, e.g. centre of rotation or angular range of movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6804—Garments; Clothes
    • A61B5/6807—Footwear
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7271—Specific aspects of physiological measurement analysis
    • A61B5/7282—Event detection, e.g. detecting unique waveforms indicative of a medical condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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 OR 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0204—Operational features of power management
    • A61B2560/0214—Operational features of power management of power generation or supply
    • 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
    • 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
    • A61B2562/0247—Pressure sensors
    • 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
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/168—Fluid filled sensor housings

Definitions

  • the invention relates to a wireless communication alarm device, in particular to a Bluetooth fall alarm insole.
  • the commonly used techniques for fall detection are: 1 For the analysis of audio signals, the fall event is judged by analyzing the frequency of the vibration caused by the impact, the installation is complicated, the misjudgment is easy, and the versatility is poor. 2 For video image analysis, the camera's motion state is monitored in real time by the camera, and user privacy is easily exposed. 3 Based on the wearable detection device, the existing wearable fall monitoring is known by analyzing the acceleration or acquiring the state of some devices (such as a rotating device), has high requirements for falling conditions, a single recognition condition, large power consumption, and is prone to misjudgment. .
  • the present invention aims to provide a Bluetooth fall alarm insole with reasonable structure, convenient use and low false positive rate.
  • a Bluetooth fall alarm insole includes a insole body, and in the insole body, a Bluetooth fall alarm device for judging whether a person falls or not by alerting a human body motion posture is provided.
  • the Bluetooth fall alarm device comprises a single chip microcomputer, and the single chip computer is connected with a pressure sensor, an angle sensor, an acceleration sensor, a wireless communication module, an automatic alarm module, a wireless communication module, a short message sending module, a battery, a speaker, and receives a pressure sensor at the same time.
  • the signal of the angle sensor and the acceleration sensor when the single chip receives the acceleration value measured by the acceleration sensor and is greater than the acceleration threshold, analyzes the angle value data sent by the angle sensor, and when the current angle value is greater than the angle threshold, analyzes the pressure sensor.
  • the pressure value data when the pressure value data is zero, determines that the human body falls and triggers an alarm.
  • the automatic alarm module has a built-in speaker.
  • the wireless communication module communicates directly with a receiving device having a Bluetooth function and a wireless communication function.
  • the automatic alarm module comprises two methods, a remote help and a local help, wherein the remote help feature is sent to the receiving device through the wireless communication module and transmitted to the service center or the guardian terminal, wherein the local help feature is characterized by Use the speaker voice alarm, if the alarm does not respond, then automatically send a text message to contact the rescue.
  • the insole body is provided with a sealed chamber at the heel, the Bluetooth fall alarm device is disposed in the sealed chamber, and the sealing chamber opening is sealed by the sealing bottom cover.
  • the pressure sensor model is FSR-402, and detects pressure data applied to the insole due to changes in the posture of the human body.
  • the angle sensor model is SCA60C
  • the inclination angle data of the human body and the ground is detected according to the change of the insole and the ground angle, and the basis for determining whether the fall is exceeded is an angle threshold value, and the angle threshold is set to 55° to 65°.
  • the acceleration sensor model is MMA7260L, and the acceleration data generated by the movement of the human body is detected, and the acceleration threshold is 2g to 2.5g.
  • the utility model has the advantages that the utility model has the advantages of small volume, convenient carrying, integrated installation in the insole, no incidental feeling, conforms to the wearing habit of the person, and combines information fusion detection detected by the acceleration sensor, the pressure sensor and the angle sensor to determine whether the human body falls or not, and judges The correct rate is high, and the correct rate is above 95%.
  • FIG. 1 is a schematic structural view of an insole of the present invention.
  • FIG. 2 is a schematic diagram showing the circuit structure of a Bluetooth fall alarm device according to the present invention.
  • Fig. 3 is a flow chart of the fall judgment of the present invention.
  • the Bluetooth fall alarm insole includes a insole body 1 and a Bluetooth fall alarm device 2 .
  • the insole body 1 is provided with a sealed chamber 3 at the heel, and the Bluetooth fall alarm device 2 is disposed in the sealed chamber 3 and sealed.
  • the opening is sealed by the sealing bottom cover 4 to achieve waterproof sealing.
  • the Bluetooth fall alarm device monitors the human body's motion posture to determine whether a person has fallen and issues an alarm.
  • FIG. 2 it comprises a single chip microcomputer, which is connected with a pressure sensor, an angle sensor, an acceleration sensor, a wireless communication module, an automatic alarm module, a short message sending module, a speaker and a battery module; the pressure sensor detects the change of the human body posture due to The pressure data of the insole, the angle sensor detects the inclination angle data of the human body and the ground according to the change of the insole and the ground angle, and the acceleration sensor detects the acceleration data generated by the movement of the human body, and the MCU of the single chip determines whether the human body falls by the information fusion technology of the multi-sensor.
  • the automatic alarm module is automatically triggered, sent to the receiving device through the wireless communication module, and transmitted to the service center or the guardian terminal, and simultaneously uses the speaker voice alarm, and if the alarm does not respond, the SMS is automatically sent to contact the rescue.
  • the receiving device is a device with a Bluetooth function and a wireless communication function, such as a mobile phone, a Bluetooth bracelet, a computer, a tablet computer, and the like.
  • the battery provides power to the Bluetooth communication device body.
  • the automatic alarm module has a speaker and a short message sending module therein. Alarm messages can be transmitted in two modes.
  • the receiving device can be a device with Bluetooth function and wireless communication function, such as: mobile phone, Bluetooth bracelet, computer, tablet, and the like.
  • the fall alarm flow of this device is shown in Figure 3.
  • the acceleration sensor directly powered by the power module works mainly in the energy-saving motion-triggered wake-up mode.
  • the acceleration sensor detects that the device wearer exceeds the normal active acceleration threshold signal, the acceleration sensor outputs an interrupt signal to wake up the single-chip microcomputer that is directly powered by the power supply but is normally in a low-power sleep mode; the pressure sensor is not working under normal conditions.
  • the angle sensor acquires the angle change data by the single-chip microcomputer, and starts the pressure sensor to collect the pressure change information.
  • the burst time is less than 2 seconds.
  • the MCU calculates the movement acceleration of the super-threshold amplitude and the attitude change exceeding the threshold angle within 2 seconds according to the collected three-dimensional acceleration change information, And when the pressure data suddenly changes, it is determined that the wearer has fallen.
  • the multi-sensor fusion technology monitors various postures of the human body in real time through information fusion of the acceleration sensor, the inclination sensor and the pressure sensor, and analyzes the collected acceleration data to determine whether the current acceleration value is greater than the acceleration threshold when the fall occurs, and the acceleration change ⁇
  • the collected angle data determines whether the current angle is greater than an angle threshold at the time of the fall, and the angle change ⁇ threshold is set to 55° to 65° (about two-thirds of about 90°), and if not greater than the threshold, the alarm is not performed. Otherwise, continue to analyze the collected bipedal pressure data.
  • the human body falls, the human body's gravity is taken by other parts of the body, the soles of the feet are off the ground, and the sole pressure value is suddenly reduced or zero. At this time, it can be judged that the human body has fallen and triggers an alarm. .
  • the alarm signal is sent to the emergency processing terminal through the wireless communication module, and a voice alarm is issued at the same time. If the alarm does not respond, the short message is automatically sent to contact the ambulance.

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Abstract

一种蓝牙跌倒报警鞋垫，包括鞋垫本体（1），在鞋垫本体（1）内，还设有通过监测人体运动姿态判断人是否跌倒、并发出警报的蓝牙跌倒报警装置（2）。该蓝牙跌倒报警鞋垫体积小、携带方便，集成安装在鞋垫内，无任何附带感，符合人的穿戴习惯，结合压力传感器、角度传感器和加速度传感器检测的信息融合，判断的正确率高，正确率在95%以上。

Description

一种蓝牙跌倒报警鞋垫 技术领域
本发明涉及无线通讯报警装置，具体为一种蓝牙跌倒报警鞋垫。
背景技术
随着通讯技术及微传感器技术的不断发展及信息社会的不断进步，使得研制方便又可靠的跌倒报警装置成为可能，人们希望有一种出现跌倒意外损伤时能够自动报警的装置，以便对伤者及时救治。
如今，老龄化问题日趋严重，针对65岁以上老年人群或行走不便的智障人群，登山族等，设计一种穿戴方便、无任何附属感的人体跌倒检测和报警的装置，非常有必要。
目前跌倒检测常用的技术有：①针对音频信号的分析，跌倒事件由分析冲击导致振动的频率来判断，安装复杂，容易误判，通用性差。②针对视频的图像分析，通过摄像头实时监测对象的运动状态，用户隐私容易暴露。③基于穿戴式的检测装置，现有穿戴式跌倒监测通过分析加速度或获取某些装置(如旋转装置)的状态来获知，对跌倒条件要求高、识别条件单一，功耗大，容易产生误判。
发明内容
针对上述问题，本发明旨在提供一种结构合理、方便使用、误判率低的蓝牙跌倒报警鞋垫。
为实现该技术目的，本发明的方案是：
一种蓝牙跌倒报警鞋垫,包括鞋垫本体,在鞋垫本体内,还设有通过监测人体运动姿态判断人是否跌倒、并发出警报的蓝牙跌倒报警装置。
优选的，所述蓝牙跌倒报警装置包括一单片机，单片机连接有压力传感器、角度传感器、加速度传感器、无线通讯模块、自动报警模块、无线通讯模块、短信发送模块、电池、喇叭，同时接收压力传感器、角度传感器、加速度传感器的信号；当单片机接收到加速度传感器测得加速度值大于加速度阈值时,再分析角度传感器发来的角度值数据,当当前角度值大于角度阈值时,再分析压力传感器发来的压力值数据,当压力值数据为零时,判定人体跌倒,并触发报警。
优选的，所述自动报警模块内置有喇叭。
优选的，无线通讯模块与具有蓝牙功能和无线通讯功能的接收装置直接通信。
优选的，自动报警模块包括远程求救与本地求救等两种方式，所述的远程求救特征在于通过无线通讯模块发送到接收装置，并传递给服务中心或监护人员终端，所述的本地求救特征在于利用喇叭语音报警，若报警没有响应，则自动发送短信联系救护。
优选的，所述鞋垫本体在后跟处设有一密封仓，蓝牙跌倒报警装置设于密封仓内，密封仓开口处通过密封底盖密封。
优选的，压力传感器型号为FSR～402，侦测因人体姿势变化施加于鞋垫的压力数据。
优选的，角度传感器型号为SCA60C，根据鞋垫与地面角度变化侦测人体与地面的倾向角度数据，判断跌倒的依据为是否超出角度阈值范围，所述角度阈值设为55°～65°。
优选的，加速度传感器型号为MMA7260L，侦测因人体运动所产生的加速度数据，加速度阈值为2g～2.5g。
本发明的有益效果在于，体积小，携带方便，集成安装在鞋垫内，无任何附带感，符合人的穿戴习惯，结合加速度传感器、压力传感器和角度传感器检测的信息融合，判断人体是否跌倒，判断的正确率高，正确率在95％以上。
附图说明
图1为本发明鞋垫的结构示意图。
图2为本发明蓝牙跌倒报警装置的电路结构示意图。
图3为本发明的跌倒判断流程图。
具体实施方式
下面结合附图和具体实施例对本发明做进一步详细说明。
如图1所示，蓝牙跌倒报警鞋垫，包括鞋垫本体1和蓝牙跌倒报警装置2，所述鞋垫本体1在后跟处设有一密封仓3，蓝牙跌倒报警装置2设于密封仓3内，密封仓开口处通过密封底盖4密封，以达到防水密闭的作用。
蓝牙跌倒报警装置通过监测人体运动姿态来判断人是否跌倒，并发出警报。如图2所示，它包括一单片机，单片机连接有压力传感器、角度传感器、加速度传感器、无线通讯模块、自动报警模块、短信发送模块、喇叭和电池模块；压力传感器侦测因人体姿势变化施加于鞋垫的压力数据，角度传感器根据鞋垫与地面角度变化侦测人体与地面的倾向角度数据，加速度传感器侦测因人体运动所产生的加速度数据，单片机MCU通过多传感器的信息融合技术判断人体是否跌倒。当人体跌倒时，自动触发自动报警模块，通过无线通讯模块发送到接收装置，并传递给服务中心或监护人员终端，同时利用喇叭语音报警，若报警没有响应，则自动发送短信联系救护。所述的接收装置为带蓝牙功能和无线通讯功能的装置，如：手机，蓝牙手镯，电脑，平板电脑等。电池提供蓝牙通讯装置本体供电。
所述自动报警模块，其内设有喇叭和短信发送模块。报警信息可通过两种模式传送。
(1)触发远程求救，通过无线通讯模块或短信发送模块将报警信号发送给接收装置，再传递给服务中心或监护人员。接收装置可以是带蓝牙功能和无线通讯功能的装置，如：手机，蓝牙手镯，电脑，平板电脑等。
(2)本地求救，通过喇叭向附近人员播报求救。
本装置的跌倒报警流程如图3所示，由电源模块直接供电的加速度传感器主要工作在节能的运动触发唤醒模式下。当加速度传感器探测到装置佩戴者超出正常活动的加速度阈值信号时，加速度传感器输出中断信号，唤醒由电源直接供电但一般情况下处于低功耗休眠模式的单片机；压力传感器在正常情况下处于不工作状态，当单片机被加速度传感器信号唤醒后，由单片机启动角度传感器采集角度变化数据，启动压力传感器采集压力变化信息。由于人体瞬间跌倒时，突发时间小于2秒，当单片机根据采集的三维加速度变化信息计算出装置断佩戴者在2秒内，人体发生超阈值幅度的运动加速度变化和超过阈值角度的姿态变化，并且压力数据也骤变时，即判定佩戴者发生了跌倒。
多传感器融合技术通过加速度传感器、倾角传感器和压力传感器的信息融合来实时监测人体的各种姿态，通过分析所采集的加速度数据，判断当前加速度值是否大于跌倒时的加速度阈值，所述加速度变化Δ阈值可设为2g～2.5g(g 为重力加速度，1g＝9.8N.m/s2)，若不大于该阈值则不报警，否则继续通过分析两个角度传感器数据测定当前人体的跌倒姿态，通过分析所采集的角度数据，判断当前角度是否大于跌倒时的角度阈值，所述角度变化Δ阈值设为55°～65°(约90°的三分之二)，若不大于该阈值则不报警，否则继续分析所采集的双足压力数据，当人体跌倒以后，人体的重力由身体的其他部位承受，脚掌离开地面，脚底压力值骤减或为零，此时可以判断人体已经跌倒，并触发报警。通过无线通讯模块发送报警信号到紧急处理终端，同时发出语音报警，若报警没有响应，则自动发送短信联系救护。
当人体休息时，这种正常活动不会超出加速度阈值，此时压力传感器读数为零，可判定人体活动指数为零，30分钟过后，系统自动关闭监测，单片机休眠，以保证电池续航。
以上所述，仅为本发明的较佳实施例，并不用以限制本发明，凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同替换和改进，均应包含在本发明技术方案的保护范围之内。

Claims (8)

  1. 一种蓝牙跌倒报警鞋垫,包括鞋垫本体,其特征在于,在鞋垫本体内,还设有通过监测人体运动姿态判断人是否跌倒、并发出警报的蓝牙跌倒报警装置。
  2. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，所述蓝牙跌倒报警装置包括一单片机，单片机连接有压力传感器、角度传感器、加速度传感器、无线通讯模块、自动报警模块、无线通讯模块、短信发送模块、电池、喇叭，同时接收压力传感器、角度传感器、加速度传感器的信号；当单片机接收到加速度传感器测得加速度值大于加速度阈值时,再分析角度传感器发来的角度值数据,当当前角度值大于角度阈值时,再分析压力传感器发来的压力值数据,当压力值数据为零时,判定人体跌倒,并触发报警。
  3. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，所述自动报警模块内置有喇叭。
  4. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，无线通讯模块与具有蓝牙功能和无线通讯功能的接收装置直接通信。
  5. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，所述鞋垫本体在后跟处设有一密封仓，蓝牙跌倒报警装置设于密封仓内，密封仓开口处通过密封底盖密封。
  6. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，压力传感器型号为FSR～402，侦测因人体姿势变化施加于鞋垫的压力数据。
  7. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，角度传感器型号为SCA60C，根据鞋垫与地面角度变化侦测人体与地面的倾向角度数据，判断跌倒的依据为是否超出角度阈值范围，所述角度阈值设为55°～65°。
  8. 如权利要求1所述的蓝牙跌倒报警鞋垫,其特征在于，加速度传感器型号为MMA7260L，侦测因人体运动所产生的加速度数据，加速度阈值为2g～2.5g。
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