WO2022120918A1 - Wearable hip-protection airbag device with fall warning function - Google Patents
Wearable hip-protection airbag device with fall warning function Download PDFInfo
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- WO2022120918A1 WO2022120918A1 PCT/CN2020/137198 CN2020137198W WO2022120918A1 WO 2022120918 A1 WO2022120918 A1 WO 2022120918A1 CN 2020137198 W CN2020137198 W CN 2020137198W WO 2022120918 A1 WO2022120918 A1 WO 2022120918A1
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 38
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 38
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims description 40
- 230000001133 acceleration Effects 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009191 jumping Effects 0.000 description 3
- 206010020100 Hip fracture Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007106 neurocognition Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 238000004904 shortening Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41F—GARMENT FASTENINGS; SUSPENDERS
- A41F9/00—Belts, girdles, or waistbands for trousers or skirts
- A41F9/02—Expansible or adjustable belts or girdles ; Adjustable fasteners comprising a track and a slide member
- A41F9/025—Adjustable belts or girdles
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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
- A61B5/1116—Determining posture transitions
- A61B5/1117—Fall detection
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- 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
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- the wearable hip protection airbag device with fall warning function is an effective means of fall prevention. It studies the movement information of people who are prone to falls, and provides hip cushioning protection during the fall process, which can effectively reduce the fall of the elderly. The harm suffered is of great significance to solving the medical and social problems brought about by the aging of the population.
- the existing wearable hip protection airbag devices with fall warning function generally suffer from small protective area, long warning time, long gas cylinder deflation time, high false alarm rate of fall early warning algorithm, high cost of replacing gas cylinder, and poor wear. comfort, etc.
- FIG. 1 is a schematic view of wearing a wearable hip protection airbag device with a fall warning function according to an embodiment of the present application
- FIG. 2 is a wearable hip protection safety device with a fall warning function according to an embodiment of the present application.
- the wearable hip protection airbag device with a fall warning function according to the embodiment of the present application includes an inner waistband 10 and an outer waistband 20.
- the inner waistband 10 is worn on the waist of the monitor, and the front side of the waistband 10 close to the human skin is installed with a device for collecting the human body in real time.
- Nine-axis inertial sensor for motion data (not shown).
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Abstract
A wearable hip-protection airbag device with a fall warning function, the device comprising an inner waistband (10) and an outer waistband (20), wherein the inner waistband (10) and the outer waistband (20) are worn on the waist of a subject, and the outer waistband (20) is positioned on the outer side of the inner waistband (10); a sensor is mounted on the inner waistband (10); an airbag (21) is mounted on a rear inner side of the outer waistband (20), and a main control box (23) is arranged on a front outer side of the outer waistband (20); the main control box (23) is internally provided with a main control board (221), a bidirectional piercing device (225) and compressed carbon-dioxide gas cylinders (226); the main control board (221) is connected to the sensor; two compressed carbon-dioxide gas cylinders (226) are provided, and the two compressed carbon-dioxide gas cylinders (226) are respectively fixed at left and right ends of the bidirectional piercing device (225); and the airbag (21) is connected to the main control box (23) by means of a gas guiding pipe (14). The device can inflate the airbag (21) by means of the two compressed carbon-dioxide gas cylinders (226), the inflation speed is faster, and the warning time is greatly shortened. In addition, the device has a relatively small computing amount, high accuracy and a low false alarm rate.
Description
本申请属于跌倒预警技术领域,特别涉及一种具有跌倒预警功能的穿戴式护髋安全气囊装置。The present application belongs to the technical field of fall warning, and particularly relates to a wearable hip protection airbag device with a fall warning function.
人体在走路或站立时为了保持微妙的平衡,会自主通过脚踝、臀部、躯干及跨步策略来调整姿态,这种平衡的控制会受到运动***和中枢神经***的影响。当平衡被打破、无法通过自身调整***来维持稳定,或者平衡能力、神经认知功能严重受损无法自主调整,平衡无法保持则会出现跌倒的情况。随着年龄的增长,平衡能力逐步退化,跌倒发生的风险也会随之增大,且随着年龄增大,跌倒后身体自主采取补救措施的能力也越缓慢。据统计,髋部骨折是老年人常见的严重损伤,而90%以上的老年人髋部骨折都是跌倒所致。具有跌倒预警功能的具有跌倒预警功能的穿戴式护髋安全气囊装置作为跌倒预防的有效手段,研究易跌人群的运动信息,在其跌倒过程给予髋部缓冲保护,可有效的减轻老年人跌倒后所受到的伤害,对解决人口老年化带来的医疗和社会问题具有重大意义。然而,现有的具有跌倒预警功能的穿戴式护髋安全气囊装置普遍存在防护面积小、预警时间长、气瓶放气时间长、跌倒预警算法误报率高、更换气瓶成本高以及穿戴不舒适等问题。In order to maintain a delicate balance when walking or standing, the human body adjusts its posture through ankles, hips, trunk and striding strategies voluntarily. The control of this balance is affected by the motor system and the central nervous system. When the balance is broken and the body cannot be adjusted to maintain stability, or the balance ability and neurocognitive function are severely damaged and cannot be adjusted independently, the balance cannot be maintained, and falls will occur. With age, balance ability gradually deteriorates, and the risk of falling will also increase, and as age increases, the body's ability to take remedial measures on its own after a fall also slows down. According to statistics, hip fracture is a common serious injury in the elderly, and more than 90% of the elderly hip fractures are caused by falls. The wearable hip protection airbag device with fall warning function is an effective means of fall prevention. It studies the movement information of people who are prone to falls, and provides hip cushioning protection during the fall process, which can effectively reduce the fall of the elderly. The harm suffered is of great significance to solving the medical and social problems brought about by the aging of the population. However, the existing wearable hip protection airbag devices with fall warning function generally suffer from small protective area, long warning time, long gas cylinder deflation time, high false alarm rate of fall early warning algorithm, high cost of replacing gas cylinder, and poor wear. comfort, etc.
发明内容SUMMARY OF THE INVENTION
本申请提供了一种具有跌倒预警功能的穿戴式护髋安全气囊装置,旨在至少在一定程度上解决现有技术中的上述技术问题之一。The present application provides a wearable hip protection airbag device with a fall warning function, which aims to solve one of the above technical problems in the prior art at least to a certain extent.
为了解决上述问题,本申请提供了如下技术方案:In order to solve the above problems, the application provides the following technical solutions:
一种具有跌倒预警功能的穿戴式护髋安全气囊装置,包括内腰带和外腰带,所述内腰带和外腰带分别佩戴于监护者的人体腰部,所述外腰带位于内腰带外侧;所述内腰带上安装有用于采集人体运动数据的传感器;所述外腰带的后方内侧安装有安全气囊,所述外腰带的前方外侧设有主控盒,所述主控盒中包括主控板、双向刺破装置和二氧化碳压缩气瓶;所述主控板与传感器连接,所述二氧化碳压缩气瓶的数量为两个,所述两个二氧化碳压缩气瓶分别固定在所述 双向刺破装置的左右两端;所述安全气囊通过导气管与所述主控盒连接;所述主控板用于获取传感器采集的人体运动数据,并采用跌倒预警算法对跌倒动作进行识别,如果识别到跌倒动作,则控制所述双向刺破装置刺破所述二氧化碳压缩气瓶对所述安全气囊充气,以在发生跌倒时对所述监护者进行防护。A wearable hip protection airbag device with a fall warning function includes an inner waistband and an outer waistband, the inner waistband and the outer waistband are respectively worn on the waist of a guardian, and the outer waistband is located outside the inner waistband; A sensor for collecting human motion data is installed on the waistband; an airbag is installed on the rear and inner side of the outer waistband, and a main control box is arranged on the front and outer side of the outer waistband, and the main control box includes a main control board, a two-way barbed The main control board is connected to the sensor, the number of the carbon dioxide compressed gas cylinders is two, and the two carbon dioxide compressed gas cylinders are respectively fixed on the left and right ends of the two-way puncturing device The airbag is connected with the main control box through the airway; the main control board is used to obtain the human body motion data collected by the sensor, and adopts the fall warning algorithm to identify the fall action, and if the fall action is identified, control the The two-way piercing device pierces the carbon dioxide compressed gas cylinder to inflate the airbag to protect the guardian in the event of a fall.
本申请实施例采取的技术方案还包括:所述双向刺破装置的左右两端还分别设有刺针,所述刺针与所述二氧化碳压缩气瓶的位置相对应。The technical solution adopted in the embodiment of the present application further includes: the left and right ends of the bidirectional puncturing device are further provided with puncture needles, and the puncture needles correspond to the positions of the carbon dioxide compressed gas cylinder.
本申请实施例采取的技术方案还包括:所述主控盒中还设有电池、电动舵机和双向凸轮,所述电池与电动舵机连接,用于为所述电动舵机供电;所述电动舵机与主控板连接,所述双向凸轮位于电动舵机上方,并与所述双向刺破装置连接;如果识别到跌倒动作,所述主控板控制所述电动舵机带动双向凸轮转动,通过所述双向凸轮将所述电动舵机的旋转运动转化为直线运动,推动所述双向刺破装置左右两端的两个刺针向两侧移动并刺破所述二氧化碳压缩气瓶,使所述二氧化碳压缩气瓶释放出二氧化碳气体,并通过所述导气管将所述二氧化碳气体充入所述安全气囊中。The technical solutions adopted in the embodiments of the present application further include: the main control box is further provided with a battery, an electric steering gear and a two-way cam, and the battery is connected to the electric steering gear for supplying power to the electric steering gear; the The electric steering gear is connected to the main control board, and the two-way cam is located above the electric steering gear and is connected to the two-way piercing device; if a fall action is recognized, the main control board controls the electric steering gear to drive the two-way cam to rotate , convert the rotary motion of the electric steering gear into linear motion through the two-way cam, push the two puncturing needles at the left and right ends of the two-way piercing device to move to both sides and pierce the carbon dioxide compressed gas cylinder, so that the The carbon dioxide compressed gas cylinder releases carbon dioxide gas, and the carbon dioxide gas is inflated into the airbag through the airway.
本申请实施例采取的技术方案还包括:所述主控板中还设有跌倒预警模块,所述跌倒预警模块采用基于数据统计的跌倒预警算法对所述人体运动数据进行分析,判断当前动作是否属于跌倒动作,当识别到跌倒动作时,生成迭代预警信号,并通过所述主控板将跌倒预警信号转化为电信号,控制所述电动舵机带动双向凸轮转动。The technical solutions adopted in the embodiments of the present application further include: the main control board is further provided with a fall early warning module, and the fall early warning module adopts a fall early warning algorithm based on data statistics to analyze the human body motion data to determine whether the current action is It belongs to a fall action. When a fall action is recognized, an iterative early warning signal is generated, and the fall early warning signal is converted into an electrical signal through the main control board, and the electric steering gear is controlled to drive the bidirectional cam to rotate.
本申请实施例采取的技术方案还包括:所述跌倒预警算法具体为:The technical solutions adopted in the embodiments of the present application further include: the fall warning algorithm is specifically:
获取所述传感器采集的人体运动数据;所述人体运动数据包括三轴加速度和三轴姿态角数据;acquiring human body motion data collected by the sensor; the human body motion data includes three-axis acceleration and three-axis attitude angle data;
根据所述三轴加速度计算当前动作的合加速度,根据所述合加速度判断当前动作属于类跌倒动作还是日常动作;如果属于类跌倒动作,Calculate the resultant acceleration of the current movement according to the three-axis acceleration, and judge whether the current movement belongs to a fall-like movement or a daily movement according to the resultant acceleration; if it belongs to a fall-like movement,
根据所述姿态角数据判断当前动作属于真实跌倒动作还是激烈的日常动作,如果属于真实跌倒动作,生成跌倒预警信号。According to the attitude angle data, it is judged whether the current action is a real falling action or an intense daily action, and if it is a real falling action, a fall warning signal is generated.
本申请实施例采取的技术方案还包括:所述外腰带的前方外侧还设有主控盒袋,所述主控盒安装于主控盒袋中,所述主控盒袋上还设有拉链。The technical solution adopted in the embodiment of the present application further includes: a main control box bag is further provided on the front and outer side of the outer waistband, the main control box is installed in the main control box bag, and the main control box bag is further provided with a zipper .
本申请实施例采取的技术方案还包括:所述主控盒袋上还设有一个透明的小窗口,所述主控盒上还分别设有用于控制电源的开关按钮、用于调节声音大 小的调节按钮和用于紧急呼叫的一键呼叫按钮,所述小窗口与所述三个按钮的位置相对应。The technical solutions adopted in the embodiments of the present application further include: the main control box bag is further provided with a small transparent window, and the main control box is also provided with on/off buttons for controlling the power supply, and buttons for adjusting the volume of the sound. An adjustment button and a one-touch call button for emergency call, and the small window corresponds to the positions of the three buttons.
本申请实施例采取的技术方案还包括:所述内腰带具有弹性,其两端通过第一固定组件活动连接。The technical solution adopted in the embodiment of the present application further includes: the inner waistband has elasticity, and two ends of the inner waistband are movably connected by a first fixing component.
本申请实施例采取的技术方案还包括:所述外腰带的两端分别设有调整带和第二固定组件,其通过所述调整带和第二固定组件固定于所述内腰带的外侧,并通过所述调整带调节长度。The technical solution adopted in the embodiment of the present application further includes: two ends of the outer waistband are respectively provided with an adjustment belt and a second fixing component, which are fixed to the outer side of the inner waistband through the adjustment belt and the second fixing component, and The length is adjusted by the adjustment strap.
本申请实施例采取的技术方案还包括:所述充气后的安全气囊为一个面积为0.23㎡、厚度为6.2㎝的扇形缓冲垫。The technical solution adopted in the embodiment of the present application further includes: the inflated airbag is a fan-shaped buffer pad with an area of 0.23 square meters and a thickness of 6.2 cm.
相对于现有技术,本申请实施例产生的有益效果在于:本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置采用内外双腰带结构,通过内腰带固定传感器,从而更加稳定的采集人体运动数据;通过外腰带安装安全气囊,且设置独立的主控盒,从而不会影响大面积安全气囊的总体性能,且更美观;采用基于数据统计的跌倒预警算法对跌倒动作进行实时计算,计算量较小,准确性高,误报率低;通过两个二氧化碳压缩气瓶对安全气囊进行充气,充气速度更快,可以大大缩短预警时间,且二氧化碳压缩气瓶可以更换,大大降低重复使用成本;安全气囊的防护面积与防护厚度更大,从而对人体提供更有效的防护。Compared with the prior art, the beneficial effects of the embodiments of the present application are: the wearable hip protection airbag device with a fall warning function according to the embodiments of the present application adopts an inner and outer double waist belt structure, and the sensor is fixed by the inner waist belt, so that the collection is more stable. Human body movement data; the airbag is installed through the outer belt, and an independent main control box is set, so that the overall performance of the large-area airbag will not be affected, and it is more beautiful; the fall warning algorithm based on data statistics is used to calculate the fall action in real time. The calculation amount is small, the accuracy is high, and the false alarm rate is low; the airbag is inflated through two carbon dioxide compressed gas cylinders, and the inflation speed is faster, which can greatly shorten the warning time, and the carbon dioxide compressed gas cylinder can be replaced, greatly reducing repeated use Cost; the protection area and thickness of the airbag are larger, so as to provide more effective protection for the human body.
图1是本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置的佩戴示意图;1 is a schematic view of wearing a wearable hip protection airbag device with a fall warning function according to an embodiment of the present application;
图2是本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置的展开示意图;2 is a schematic view of the deployment of a wearable hip protection airbag device with a fall warning function according to an embodiment of the present application;
图3是本申请实施例的主控盒结构示意图;3 is a schematic structural diagram of a main control box according to an embodiment of the present application;
图4是本申请实施例的安全气囊结构示意图;4 is a schematic structural diagram of an airbag according to an embodiment of the present application;
图5是本申请实施例的跌倒预警模块的跌倒预警算法流程图。FIG. 5 is a flowchart of a fall warning algorithm of a fall warning module according to an embodiment of the present application.
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实 施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不用于限定本申请。In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
请参阅图1和图2,图1是本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置的佩戴示意图,图2是本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置的展开示意图。本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置包括内腰带10和外腰带20,内腰带10佩戴于监测者的腰部,其前方贴近人体皮肤的一侧安装有用于实时采集人体运动数据的九轴惯性传感器(图未示)。内腰带10具有弹性,其两端通过第一固定组件(图未示)活动连接,并可以根据监测者的腰围调节长度。外腰带20的后方内侧安装有折叠的安全气囊21;外腰带20的前方外侧设有主控盒袋22,主控盒23安装于主控盒袋22中,主控盒袋22上还设有拉链11。外腰带20的两端分别设有调整带24和第二固定组件(图未示),其通过调整带24和第二固定组件佩戴于监测者的腰部并位于内腰带10的外侧,外腰带20可通过调整带24调节长度。Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic view of wearing a wearable hip protection airbag device with a fall warning function according to an embodiment of the present application, and FIG. 2 is a wearable hip protection safety device with a fall warning function according to an embodiment of the present application. Schematic diagram of the deployment of the airbag device. The wearable hip protection airbag device with a fall warning function according to the embodiment of the present application includes an inner waistband 10 and an outer waistband 20. The inner waistband 10 is worn on the waist of the monitor, and the front side of the waistband 10 close to the human skin is installed with a device for collecting the human body in real time. Nine-axis inertial sensor for motion data (not shown). The inner waistband 10 has elasticity, its two ends are movably connected by a first fixing component (not shown), and the length can be adjusted according to the waist circumference of the monitor. A folded airbag 21 is installed on the rear and inner side of the outer waistband 20; a main control box bag 22 is arranged on the front and outer side of the outer waistband 20, the main control box 23 is installed in the main control box bag 22, and the main control box bag 22 is also provided with Zipper 11. Both ends of the outer belt 20 are respectively provided with an adjustment belt 24 and a second fixing assembly (not shown), which are worn on the waist of the monitor and located outside the inner belt 10 through the adjustment belt 24 and the second fixing assembly, and the outer belt 20 The length can be adjusted by adjusting the strap 24 .
进一步地,请参阅图3和图4,图3是本申请实施例的主控盒结构示意图,图4是本申请实施例的安全气囊结构示意图。主控盒22中设有主控板221、电池222、电动舵机223、双向凸轮224、双向刺破装置225和二氧化碳压缩气瓶226;主控板221中包括跌倒预警模块(图未示),并分别与九轴惯性传感器和电动舵机223连接;电池222与电动舵机223连接,用于为电动舵机12供电;双向凸轮224位于电动舵机223的上方,并与双向刺破装置225连接;二氧化碳压缩气瓶226的数量为两个,两个二氧化碳压缩气瓶226分别通过标准螺纹固定在双向刺破装置225的左右两端,双向刺破装置225的左右两端还分别设有刺针(图未示),所述刺针与二氧化碳压缩气瓶的位置相对应。 主控盒22的左右两侧还分别设有一个接口25,安全气囊21的左右两侧还分别设有导气管14,导气管14的另一端与同侧的接口25连接。Further, please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic structural diagram of a main control box according to an embodiment of the present application, and FIG. 4 is a structural schematic diagram of an airbag according to an embodiment of the present application. The main control box 22 is provided with a main control board 221, a battery 222, an electric steering gear 223, a two-way cam 224, a two-way puncturing device 225 and a carbon dioxide compressed gas cylinder 226; the main control board 221 includes a fall warning module (not shown) , and are respectively connected with the nine-axis inertial sensor and the electric steering gear 223; the battery 222 is connected with the electric steering gear 223 to supply power to the electric steering gear 12; the bidirectional cam 224 is located above the electric steering gear 223, and is connected with the bidirectional piercing device 225 connection; the number of carbon dioxide compressed gas cylinders 226 is two, and the two carbon dioxide compressed gas cylinders 226 are respectively fixed on the left and right ends of the two-way puncturing device 225 through standard threads, and the left and right ends of the two-way puncturing device 225 are respectively provided with. The lancet (not shown) corresponds to the position of the carbon dioxide compressed gas cylinder. The left and right sides of the main control box 22 are respectively provided with an interface 25 , and the left and right sides of the airbag 21 are respectively provided with air conduits 14 , and the other end of the air conduit 14 is connected to the interface 25 on the same side.
本申请实施例中,二氧化碳压缩气瓶226为8g二氧化碳压缩气瓶。通过设置独立的主控盒袋用以固定主控盒,便于主控盒的放入和取出,以及二氧化碳压缩气瓶的更换。In the embodiment of the present application, the carbon dioxide compressed gas cylinder 226 is an 8 g carbon dioxide compressed gas cylinder. By setting an independent main control box bag to fix the main control box, it is convenient to put in and take out the main control box and replace the carbon dioxide compressed gas cylinder.
如图2所示,主控盒袋22上还设有一个透明的小窗口26,主控盒23上还分别设有用于控制电源的开关按钮27、用于调节声音大小的调节按钮28和用于紧急呼叫的一键呼叫按钮29,所述小窗口26与三个按钮的位置相对应,用户可通过小窗口查看按钮并根据需求对按钮进行相应操作。As shown in FIG. 2, the main control box bag 22 is also provided with a small transparent window 26, and the main control box 23 is also provided with a switch button 27 for controlling the power supply, an adjustment button 28 for adjusting the volume of the sound, and a For the one-touch call button 29 for emergency calls, the small window 26 corresponds to the positions of the three buttons, and the user can view the buttons through the small window and perform corresponding operations on the buttons as required.
基于上述结构,本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置的工作原理为:首先,将内腰带10佩戴于监测者腰部,使九轴惯性传感器位于监测者的重心位置,并通过第一固定组件根据监测者的腰围调节内腰带长度;其次,通过调整带24和第二固定组件将外腰带20固定于内腰带10的外侧,并使安全气囊15位于监测者的腰部后侧;然后,通过开关按钮27开启电源,通过九轴惯性传感器进行姿态校准后,实时采集人体运动数据,并将采集的人体运动数据传输至主控板221;主控板221中的跌倒预警模块采用基于数据统计的跌倒预警算法对人体运动数据进行实时分析,判断监测者当前动作是否属于跌倒动作;当监测到跌倒动作时,生成迭代预警信号,通过主控板221将跌倒预警信号转化为电信号,并控制电动舵机223带动双向凸轮224转动,通过双向凸轮224将电动舵机223的旋转运动转化为直线运动,以推动双向刺破装置225左右两侧的两个刺针向两侧移动并刺破左右两个二氧化碳压缩气瓶226,使二氧化碳压缩气瓶226释放出二氧化碳气体,并通过导气管14将二氧化碳气体充入折叠的安全气囊21中,使安全气囊21迅速充满气并快速 展开,形成一个面积为0.23㎡、厚度为6.2㎝的扇形缓冲垫,从而对将要跌倒的监测者进行髋部和臀部的防护。同时,主控板221将跌倒信息远程发送至预先设置的监护人的终端设备上,便于监护人及时采取救治措施。其中,发送的跌倒信息包括但不限于具有跌倒预警功能的穿戴式护髋安全气囊装置编号、跌倒时间以及跌倒位置信息等,监护人可以通过终端设备配置具有跌倒预警功能的穿戴式护髋安全气囊装置的相关参数、并进行设状态查询、跌倒数据查询或上传以及远程关机等操作。Based on the above structure, the working principle of the wearable hip protection airbag device with a fall warning function according to the embodiment of the present application is as follows: first, the inner belt 10 is worn on the waist of the monitor, so that the nine-axis inertial sensor is located at the monitor's center of gravity, And adjust the length of the inner waistband according to the waist circumference of the monitor through the first fixing assembly; secondly, fix the outer waistband 20 on the outside of the inner waistband 10 by adjusting the belt 24 and the second fixing assembly, and make the airbag 15 located behind the waist of the monitor. Then, the power is turned on through the switch button 27, and after the attitude calibration is performed by the nine-axis inertial sensor, the human body motion data is collected in real time, and the collected human body motion data is transmitted to the main control board 221; the fall warning module in the main control board 221 The fall early warning algorithm based on data statistics is used to analyze the human movement data in real time, to judge whether the current movement of the monitor belongs to a fall movement; when a fall movement is detected, an iterative early warning signal is generated, and the fall early warning signal is converted into electrical signals through the main control board 221 signal, and control the electric steering gear 223 to drive the two-way cam 224 to rotate, and the two-way cam 224 converts the rotary motion of the electric steering gear 223 into a linear motion, so as to push the two needles on the left and right sides of the two-way piercing device 225 to move to both sides and Puncture the left and right carbon dioxide compressed gas cylinders 226, so that the carbon dioxide compressed gas cylinder 226 releases carbon dioxide gas, and the carbon dioxide gas is inflated into the folded airbag 21 through the air guide 14, so that the airbag 21 is quickly inflated and rapidly unfolded, A fan-shaped cushion with an area of 0.23㎡ and a thickness of 6.2cm is formed to protect the hips and buttocks of the monitor who is about to fall. At the same time, the main control board 221 remotely transmits the fall information to a preset terminal device of the guardian, so that the guardian can take rescue measures in time. The fall information sent includes, but is not limited to, the wearable hip protection airbag device number, fall time, and fall location information with a fall warning function. The guardian can configure a wearable hip protection airbag device with a fall warning function through the terminal device. related parameters, and perform operations such as setting status query, fall data query or upload, and remote shutdown.
上述中,主控板221采用GPS/北斗、WiFi或基站三种混合定位方式进行实时定位,从而实现室内或室外的准确定位。In the above, the main control board 221 uses three hybrid positioning methods of GPS/Beidou, WiFi or base station to perform real-time positioning, so as to achieve accurate indoor or outdoor positioning.
进一步地,请参阅图5,是本申请实施例的跌倒预警模块的跌倒预警算法流程图。所述跌倒预警模块的跌倒预警算法具体包括:Further, please refer to FIG. 5 , which is a flowchart of a fall warning algorithm of the fall warning module according to the embodiment of the present application. The fall warning algorithm of the fall warning module specifically includes:
S1:获取九轴惯性传感器采集的人体运动数据;人体运动数据包括但不限于三轴加速度(acc_x、acc_y、acc_z)、三轴姿态角数据(roll、pitch、yaw)等;S1: Obtain the human motion data collected by the nine-axis inertial sensor; the human motion data includes but is not limited to three-axis acceleration (acc_x, acc_y, acc_z), three-axis attitude angle data (roll, pitch, yaw), etc.;
S2:根据人体运动数据计算当前动作的合加速度,根据合加速度判断当前动作属于类跌倒动作还是日常动作,如果属于日常动作,则结束计算,并重新执行S1;否则,执行S3;S2: Calculate the resultant acceleration of the current action according to the human body motion data, and judge whether the current action belongs to a fall-like action or a daily action according to the resultant acceleration. If it is a daily action, end the calculation and execute S1 again; otherwise, execute S3;
其中,人体日常动作通常包括行走、慢跑、坐下站起、蹲下站起、缓慢躺下、上楼梯、下楼梯、跳跃等,其中,剧烈的跳跃、快速下楼梯、快速躺下等较为剧烈的日常动作在合加速度的特征上与跌倒动作相似,被称为类跌倒动作。因此,本申请实施例根据运动过程中合加速度的变化快慢特征对日常动作和类跌倒动作进行区分,如果当前动作为日常动作,则结束计算,减少计算过程,降低功耗。Among them, the daily movements of the human body usually include walking, jogging, sitting and standing up, squatting and standing up, slowly lying down, going up stairs, going down stairs, jumping, etc. Among them, violent jumping, fast going down stairs, fast lying down, etc. are more severe The daily movements of 's are similar to falling movements in the characteristics of the resultant acceleration, and are called fall-like movements. Therefore, the embodiment of the present application distinguishes between daily actions and fall-like actions according to the change speed of the combined acceleration during exercise. If the current action is a daily action, the calculation is ended, the calculation process is reduced, and the power consumption is reduced.
S3:根据姿态角数据判断当前动作属于真实跌倒动作还是较为激烈的日常动作,如果属于较为激烈的日常动作,则结束计算,并重新执行S1;否则,执行S4;S3: According to the attitude angle data, determine whether the current action is a real fall action or a relatively intense daily action. If it is a relatively intense daily action, end the calculation and execute S1 again; otherwise, execute S4;
其中,剧烈的跳跃、快速下楼梯、快速躺下等类跌倒动作虽然在加速度上与跌倒动作相似,但其在姿态角变化中与跌倒动作不同,且不同的跌倒方向,其姿态角变化也不一样,例如,当跌倒方向为左倒或右倒时,pitch角正负不一样,当跌倒方向为后倒时,pitch角基本不会变化太大,但roll角变化较大,因此,本申请实施例通过设置不同跌倒方向的姿态角限制阈值,如果当前动作的姿态角数据到达所设定的姿态角限制阈值,则判定该动作为真实跌倒动作,否则,判定该动作为类跌倒动作,从而降低跌倒动作的预警误报率,提高预警准确性。Among them, although violent jumping, quickly descending stairs, and quickly lying down are similar to falling movements in acceleration, their attitude angle changes are different from falling movements, and the attitude angle changes in different falling directions are not the same. For example, when the fall direction is left or right, the pitch angle is different. When the fall direction is backward, the pitch angle does not change much, but the roll angle changes greatly. Therefore, this application In the embodiment, by setting the attitude angle limit thresholds of different fall directions, if the attitude angle data of the current action reaches the set attitude angle limit threshold, it is determined that the action is a real fall action, otherwise, it is determined that the action is a fall-like action, thereby. Reduce the false alarm rate of early warning of falls and improve the accuracy of early warning.
S4:生成跌倒预警信号。S4: Generate a fall warning signal.
基于上述,本申请实施例的具有跌倒预警功能的穿戴式护髋安全气囊装置采用内外双腰带结构,通过内腰带固定传感器,从而更加稳定的采集人体运动数据;通过外腰带安装安全气囊,且设置独立的主控盒,从而不会影响大面积安全气囊的总体性能,且更美观;采用基于数据统计的跌倒预警算法对跌倒动作进行实时计算,计算量较小,准确性高,误报率低;通过两个8g二氧化碳压缩气瓶对安全气囊进行充气,与单独使用一个16g二氧化碳压缩气瓶相比,释放相同质量的二氧化碳气体可以节约26.5%的时间,从而大大缩短预警时间,且二氧化碳压缩气瓶可以更换,大大降低重复使用成本;安全气囊的防护面积与防护厚度更大,从而对人体提供更有效的防护。Based on the above, the wearable hip protection airbag device with a fall warning function according to the embodiment of the present application adopts an inner and outer double belt structure, and the sensor is fixed by the inner belt, so as to collect human motion data more stably; the airbag is installed through the outer belt, and the The independent main control box will not affect the overall performance of the large-area airbag, and it is more beautiful; the fall warning algorithm based on data statistics is used to calculate the fall action in real time, with a small amount of calculation, high accuracy and low false alarm rate. ; The airbag is inflated by two 8g carbon dioxide compressed gas cylinders. Compared with a single 16g carbon dioxide compressed gas cylinder, the release of the same mass of carbon dioxide gas can save 26.5% of the time, thus greatly shortening the warning time, and the carbon dioxide compressed gas The bottle can be replaced, which greatly reduces the cost of repeated use; the protection area and thickness of the airbag are larger, thus providing more effective protection for the human body.
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的, 本申请中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本申请所示的这些实施例,而是要符合与本申请所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined in this application may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
- 一种具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,包括内腰带和外腰带,所述内腰带和外腰带分别佩戴于监护者的人体腰部,所述外腰带位于内腰带外侧;所述内腰带上安装有用于采集人体运动数据的传感器;所述外腰带的后方内侧安装有安全气囊,所述外腰带的前方外侧设有主控盒,所述主控盒中包括主控板、双向刺破装置和二氧化碳压缩气瓶;所述主控板与传感器连接,所述二氧化碳压缩气瓶的数量为两个,所述两个二氧化碳压缩气瓶分别固定在所述双向刺破装置的左右两端;所述安全气囊通过导气管与所述主控盒连接;所述主控板用于获取传感器采集的人体运动数据,并采用跌倒预警算法对跌倒动作进行识别,如果识别到跌倒动作,则控制所述双向刺破装置刺破所述二氧化碳压缩气瓶对所述安全气囊充气,以在发生跌倒时对所述监护者进行防护。A wearable hip protection airbag device with a fall warning function is characterized in that it comprises an inner waistband and an outer waistband, the inner waistband and the outer waistband are respectively worn on the waist of a guardian, and the outer waistband is located outside the inner waistband A sensor for collecting human motion data is installed on the inner waistband; an airbag is installed on the rear inner side of the outer waistband, and a main control box is arranged on the front and outer side of the outer waistband, and the main control box includes a main control box. board, a two-way puncturing device and a carbon dioxide compressed gas cylinder; the main control board is connected to a sensor, the number of the carbon dioxide compressed gas cylinders is two, and the two carbon dioxide compressed gas cylinders are respectively fixed on the two-way puncturing device The left and right ends of the airbag; the airbag is connected to the main control box through the airway; the main control board is used to obtain the human body motion data collected by the sensor, and uses the fall warning algorithm to identify the fall action. action, the two-way piercing device is controlled to pierce the carbon dioxide compressed gas cylinder to inflate the airbag, so as to protect the guardian in the event of a fall.
- 根据权利要求1所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述双向刺破装置的左右两端还分别设有刺针,所述刺针与所述二氧化碳压缩气瓶的位置相对应。The wearable hip protection airbag device with fall warning function according to claim 1, wherein the left and right ends of the two-way puncturing device are further provided with puncture needles, and the puncture needle and the carbon dioxide compressed gas cylinder are respectively provided with puncture needles. corresponding position.
- 根据权利要求2所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述主控盒中还设有电池、电动舵机和双向凸轮,所述电池与电动舵机连接,用于为所述电动舵机供电;所述电动舵机与主控板连接,所述双向凸轮位于电动舵机上方,并与所述双向刺破装置连接;如果识别到跌倒动作,所述主控板控制所述电动舵机带动双向凸轮转动,通过所述双向凸轮将所述电动舵机的旋转运动转化为直线运动,推动所述双向刺破装置左右两端的两个刺 针向两侧移动并刺破所述二氧化碳压缩气瓶,使所述二氧化碳压缩气瓶释放出二氧化碳气体,并通过所述导气管将所述二氧化碳气体充入所述安全气囊中。The wearable hip protection airbag device with fall warning function according to claim 2, wherein the main control box is further provided with a battery, an electric steering gear and a two-way cam, and the battery is connected to the electric steering gear , used to supply power to the electric steering gear; the electric steering gear is connected to the main control board, the two-way cam is located above the electric steering gear, and is connected to the two-way piercing device; if a fall action is recognized, the The main control board controls the electric steering gear to drive the bidirectional cam to rotate, and the rotary motion of the electric steering gear is converted into a linear motion through the bidirectional cam, and the two needles at the left and right ends of the bidirectional piercing device are pushed to move to both sides and puncturing the carbon dioxide compressed gas bottle, so that the carbon dioxide compressed gas bottle releases carbon dioxide gas, and the carbon dioxide gas is inflated into the airbag through the air guide tube.
- 根据权利要求3所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述主控板中还设有跌倒预警模块,所述跌倒预警模块采用基于数据统计的跌倒预警算法对所述人体运动数据进行分析,判断当前动作是否属于跌倒动作,当识别到跌倒动作时,生成迭代预警信号,并通过所述主控板将跌倒预警信号转化为电信号,控制所述电动舵机带动双向凸轮转动。The wearable hip protection airbag device with a fall warning function according to claim 3, wherein the main control board is further provided with a fall warning module, and the fall warning module adopts a fall warning algorithm based on data statistics Analyze the human body movement data to determine whether the current action is a fall action, and when a fall action is identified, an iterative early warning signal is generated, and the fall early warning signal is converted into an electrical signal through the main control board to control the electric rudder The machine drives the bidirectional cam to rotate.
- 根据权利要求4所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述跌倒预警算法具体为:The wearable hip protection airbag device with a fall warning function according to claim 4, wherein the fall warning algorithm is specifically:获取所述传感器采集的人体运动数据;所述人体运动数据包括三轴加速度和三轴姿态角数据;acquiring human body motion data collected by the sensor; the human body motion data includes three-axis acceleration and three-axis attitude angle data;根据所述三轴加速度计算当前动作的合加速度,根据所述合加速度判断当前动作属于类跌倒动作还是日常动作;如果属于类跌倒动作,Calculate the resultant acceleration of the current movement according to the three-axis acceleration, and judge whether the current movement belongs to a fall-like movement or a daily movement according to the resultant acceleration; if it belongs to a fall-like movement,根据所述姿态角数据判断当前动作属于真实跌倒动作还是激烈的日常动作,如果属于真实跌倒动作,生成跌倒预警信号。According to the attitude angle data, it is judged whether the current action is a real falling action or an intense daily action, and if it is a real falling action, a fall warning signal is generated.
- 根据权利要求1至5任一项所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述外腰带的前方外侧还设有主控盒袋,所述主控盒安装于主控盒袋中,所述主控盒袋上还设有拉链。The wearable hip protection airbag device with fall warning function according to any one of claims 1 to 5, wherein a main control box bag is further provided on the front and outer side of the outer waistband, and the main control box is installed In the main control box bag, the main control box bag is also provided with a zipper.
- 根据权利要求6所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述主控盒袋上还设有一个透明的小窗口,所述主控盒上还分别设有用于控制电源的开关按钮、用于调节声音大小的调节按钮和用于紧急呼叫的一键呼叫按钮,所述小窗口与所述三个按钮的位置相对应。The wearable hip protection airbag device with fall warning function according to claim 6, wherein the main control box bag is further provided with a small transparent window, and the main control box is also provided with a small transparent window. The small window corresponds to the positions of the three buttons for the on/off button for controlling the power supply, the adjustment button for adjusting the volume of the sound and the one-key call button for emergency calling.
- 根据权利要求1所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述内腰带具有弹性,其两端通过第一固定组件活动连接。The wearable hip protection airbag device with fall warning function according to claim 1, wherein the inner waistband has elasticity, and the two ends of the inner waistband are movably connected by a first fixing component.
- 根据权利要求8所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述外腰带的两端分别设有调整带和第二固定组件,其通过所述调整带和第二固定组件固定于所述内腰带的外侧,并通过所述调整带调节长度。The wearable hip protection airbag device with fall warning function according to claim 8, wherein the two ends of the outer waistband are respectively provided with an adjustment belt and a second fixing component, which pass through the adjustment belt and the first Two fixing components are fixed on the outer side of the inner waistband, and the length is adjusted by the adjusting belt.
- 根据权利要求1或3所述的具有跌倒预警功能的穿戴式护髋安全气囊装置,其特征在于,所述充气后的安全气囊为一个面积为0.23㎡、厚度为6.2㎝的扇形缓冲垫。The wearable hip protection airbag device with fall warning function according to claim 1 or 3, wherein the inflated airbag is a fan-shaped cushion with an area of 0.23 square meters and a thickness of 6.2 cm.
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