One-key help-seeking intelligent bracelet

Abstract

The application discloses a one-key help-seeking intelligent bracelet, which comprises a bracelet main body and a watchband connected to two ends of the bracelet main body; the bracelet main body comprises a shell, a display screen, a key, a PCB board, a processor, a communication module, a positioning module and a sensor module; the display screen is arranged on the front surface of the shell and is used for displaying bracelet information; the key is arranged on the shell and is used for manual operation of a user to trigger functions; the PCB board is arranged in the shell, the processor is arranged on the PCB board and is electrically connected with the display screen, the key, the communication module, the positioning module and the sensor module; and the sensor module is used for detecting the motion state and physiological data of the user and identifying a falling event. Thus, the one-key help-seeking intelligent bracelet can realize automatic and accurate alarm without the help of a mobile phone and manual operation after an old person falls down alone, can directly contact children or an emergency platform, greatly shortens the response and treatment time after falling down, and effectively reduces the complication risk and life danger caused by delayed treatment.

Description

Technical Field

[0001] This application relates to the technical field of smart bracelets, and more particularly to a one-button emergency call smart bracelet. Background Technology

[0002] With the widespread adoption of smart wearable devices, smart bracelets, due to their portability and health monitoring functions, are gradually becoming common accessories in the daily lives of the elderly. At the same time, my country's aging population is deepening, and the number of elderly people living alone is increasing. Due to declining physical functions, the elderly are prone to accidental falls. If they do not receive help for a long time after a fall, they may suffer from dehydration, hypothermia, or worsening of their injuries, posing a very high risk of disability or even death.

[0003] However, most smart bracelets currently on the market have significant drawbacks in dealing with this scenario: they are usually accessories to mobile phones, and their communication functions heavily rely on Bluetooth connections with the phone. When an elderly person living alone suffers a serious fall, they may miss the opportunity to call for help due to impaired consciousness, the absence of their phone, or inability to operate it. In addition, many bracelets have insufficient accuracy in their fall detection algorithms, which can easily lead to false alarms or missed alarms, and they lack an automatic upgrade call mechanism when no one answers, making it difficult to build a reliable safety barrier for elderly people in critical situations. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to propose a smart bracelet with one-click emergency call, which can automatically and accurately alarm an elderly person who falls alone without relying on a mobile phone or manual operation. It can directly contact their children or emergency medical platforms, significantly shortening the response and treatment time after a fall and effectively reducing the risk of complications and life-threatening dangers caused by delayed treatment.

[0006] To achieve the above objectives, the first aspect of this application proposes a one-button emergency call smart bracelet, including a bracelet body and a strap connecting the two ends of the bracelet; the bracelet body includes a housing, a display screen, buttons, a PCB board, a processor, a communication module, a positioning module, and a sensor module.

[0007] The display screen is located on the front of the housing and is used to display wristband information; the button is located on the housing for the user to manually operate and trigger functions; the PCB board is located inside the housing, and the processor is located on the PCB board and is electrically connected to the display screen, button, communication module, positioning module, and sensor module; the sensor module is used to detect the user's movement status and physiological data, and to identify fall events; the positioning module is used to acquire and record the wristband's location information in real time; the communication module is used to establish a connection with an external communication terminal to automatically initiate an emergency communication when a fall event is detected or when the user manually triggers it, the emergency communication including sending alarm information to preset contact methods or establishing a voice call.

[0008] The one-button emergency call smart bracelet of this application embodiment enables elderly people to automatically and accurately alarm after falling without relying on a mobile phone or manual operation. It can directly contact their children or emergency medical services, significantly shortening response and treatment time after a fall and effectively reducing the risk of complications and life-threatening situations caused by delayed treatment. At the same time, accurate fall detection reduces false alarms and missed alarms, avoiding the annoyance of children receiving frequent invalid alerts, and encouraging continued use by the elderly. This not only effectively protects the safety of elderly people living alone but also alleviates their children's concerns about their safety, helping the elderly maintain an independent lifestyle while improving their sense of well-being and psychological security.

[0009] In addition, the one-button emergency call smart bracelet proposed in this application may also have the following additional technical features:

[0010] In one embodiment of this application, the sensor module includes an accelerometer, a PPG photoplethysmometer, and a gyroscope. The accelerometer is used to detect the user's step count and motion acceleration; the PPG photoplethysmometer is used to detect the user's heart rate in real time; the gyroscope is used to detect the wristband's rotational angular velocity; the accelerometer and gyroscope work together to determine whether the user has fallen by processing the acceleration data and rotational angular velocity.

[0011] In one embodiment of this application, the communication module includes a Bluetooth module, an eSIM module, and a WiFi module, wherein the Bluetooth module is used to connect to an external Bluetooth device; the eSIM module has a built-in eSIM card for transmitting user data in an outdoor environment; and the WiFi module is used to receive and send data to a cloud server via a wireless network in an indoor environment.

[0012] In one embodiment of this application, the communication module is connected to a remote terminal, wherein a microphone and a speaker are provided on the housing, wherein the microphone is used for the user to make voice calls through the wristband; and the speaker is used to play call sounds or alarm sounds to attract external attention.

[0013] In one embodiment of this application, the buttons include an SOS button on the front of the housing and operation buttons on the side of the housing; when the user presses the SOS button, the processor receives the button signal and controls the communication module to send a distress call to a preset contact method.

[0014] In one embodiment of this application, the specific steps for detecting whether a fall has occurred using the sensor module are as follows: The axial acceleration of the wristband in the X, Y, and Z directions is acquired using an accelerometer, and the acceleration data is transmitted to the processor. The X-axis corresponds to the direction in which the user's body swings horizontally in front of them while wearing the wristband; the Y-axis corresponds to the user's forward direction; and the Z-axis is perpendicular to both the X and Y axes. The direction in which the user walks while wearing the wristband is the Y-axis; and the direction perpendicular to both the X and Y axes is the Z-axis. The gyroscope acquires the angle change data of the wristband in the X, Y, and Z directions. The processor processes the acceleration data and angle change data to determine the user's state. When the peak value of the acceleration data exceeds a preset threshold, the peak duration exceeds a set value, and the rate of change of the rotation angle exceeds the normal range of motion, it is determined that the user has fallen, and a fall signal is generated and transmitted to the processor.

[0015] In one embodiment of this application, the communication terminal connected to the communication module has a pre-stored community service center number, user's family member number, and emergency service number; when initiating a distress call, the communication module prioritizes connecting to the user's family member, and if the call is not connected, it automatically transfers the call to the community service center or emergency service number.

[0016] In one embodiment of this application, the wristband stores the user's personal health information, including blood type and medical history information, which can be sent to the contact person via the communication module when calling for help.

[0017] In one embodiment of this application, the communication module connects to the smart night light via Bluetooth or WiFi to automatically control the night light switch when the user is active.

[0018] In one embodiment of this application, the housing is integrally formed, and a waterproof ring is provided at the connection between the display screen and the housing.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the one-button emergency call smart bracelet structure of this application;

[0022] Figure 2 This is a schematic diagram of the one-button emergency call smart bracelet of this application.

[0023] As shown in the picture: 1. Bracelet body; 2. Display screen; 3. SOS button; 4. Speaker; 5. Microphone; 6. Watch strap. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0025] The following describes an embodiment of the one-button emergency call smart bracelet of this application with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, the one-button emergency call smart bracelet of this application embodiment may include a bracelet body 1 and a strap 6 connecting the two ends of the bracelet; the bracelet body 1 includes a shell, a display screen 2, a button, a PCB board, a processor, a communication module, a positioning module and a sensor module.

[0027] The display screen 2 is located on the front of the housing and is used to display wristband information;

[0028] The button is located on the housing and can be manually operated by the user to trigger the function;

[0029] The PCB board is disposed inside the housing, the processor is disposed on the PCB board, and is electrically connected to the display screen 2, buttons, communication module, positioning module and sensor module;

[0030] The sensor module is used to detect the user's movement status and physiological data, and to identify fall events;

[0031] The positioning module is used to acquire and record the wristband's location information in real time. It should be noted that the positioning module can be one or more of GPS, LBS and Wi-Fi positioning fusion.

[0032] The communication module is used to establish a connection with an external communication terminal to automatically initiate an emergency call when a fall event is detected or when the user manually triggers it. The emergency call includes sending alarm information to a preset contact method or establishing a voice call.

[0033] In one embodiment of this application, the sensor module includes an accelerometer, a PPG photoplethysmometer, and a gyroscope.

[0034] The accelerometer is used to detect the user's step count and motion acceleration; the PPG photoplethysmometer is used to detect the user's heart rate in real time; the gyroscope is used to detect the wristband's rotational angular velocity; the accelerometer and gyroscope work together to process acceleration data and rotational angular velocity to determine whether the user has fallen.

[0035] In one embodiment of this application, the communication module includes a Bluetooth module, an eSIM module, and a WiFi module.

[0036] The Bluetooth module is used to connect to external Bluetooth devices.

[0037] As one possibility, the Bluetooth module can connect to a Bluetooth nightlight in the user's home, allowing the user to control the Bluetooth nightlight's on / off state via the wristband when getting up at night.

[0038] The eSIM module has a built-in eSIM card for transmitting user data in outdoor environments, while the WiFi module is used to receive and send data to the cloud server via a wireless network in indoor environments.

[0039] Understandably, the built-in eSIM module and WiFi allow the band to break free from dependence on external devices (such as mobile phones) and transmit data independently.

[0040] In one embodiment of this application, the communication module is connected to a remote terminal, wherein a microphone 5 and a speaker 4 are provided on the housing.

[0041] The microphone 5 is used by the user to make voice calls through the wristband; the speaker 4 is used to play call sounds or alarm sounds to attract attention.

[0042] As a possible alternative, the wristband may also be equipped with a buzzer, which is connected to the processor to amplify the alarm volume.

[0043] In one embodiment of this application, such as Figure 1 As shown, the buttons include an SOS button 3 on the front of the housing and operation buttons on the side of the housing; when the user presses the SOS button 3, the processor receives the button signal and controls the communication module to send a distress call to a preset contact method.

[0044] In one embodiment of this application, the specific steps for detecting whether a fall has occurred using the sensor module are as follows:

[0045] The axial acceleration of the wristband in the X, Y, and Z directions is acquired by an accelerometer and transmitted to the processor. The X-axis corresponds to the direction in which the user swings horizontally in front of their body while wearing the wristband; the Y-axis corresponds to the user's forward movement direction; and the Z-axis is perpendicular to both the X and Y axes. The direction in which the user walks while wearing the wristband is the Y-axis; the direction perpendicular to both the X and Y axes is the Z-axis.

[0046] The gyroscope is used to acquire the angular change data of the wristband in the X, Y and Z directions;

[0047] The processor processes the acceleration data and angle change data to determine the user's status.

[0048] When the peak value of the acceleration data exceeds a preset threshold, the peak duration exceeds a set value, and the rate of change of the rotation angle exceeds the normal range of motion, it is determined that the user has fallen, and a fall signal is generated and transmitted to the processor.

[0049] It should be noted that, considering the differences between routine movements (walking, sitting, bending over, etc.) and fall movements, the following judgment criteria can be set (the threshold can be calibrated based on the acquired data):

[0050] 1. Acceleration

[0051] Peak threshold: The peak acceleration of at least one of the X, Y, and Z axes is >8g (the peak of normal movement is usually <3g, and the body will generate high acceleration when falling and hitting the ground, where g is the acceleration due to gravity).

[0052] Peak duration: The peak state lasts for more than 100ms (excluding false alarms caused by instantaneous collisions, such as clapping or closing doors).

[0053] 2. Angular velocity

[0054] Rotation angle change rate: The absolute value of the angular velocity of at least one of the X, Y, and Z axes is >300° / s (when falling, the body rotates rapidly, far exceeding the range of normal angular velocity, such as when walking, the angular velocity is usually <100° / s). Here, ° / s is the unit of angular velocity, which represents the angle of rotation of an object around a certain axis per second.

[0055] Where: ° is the unit of angle (degree), / s represents per second.

[0056] 3. Comprehensive judgment

[0057] A fall is determined when all of the following conditions are met simultaneously: peak acceleration on the X, Y, or Z axis > 8g, peak duration > 100ms, and angular velocity on the X, Y, or Z axis > 300° / s.

[0058] As a possible measure to reduce false alarms (such as jumping or sitting down quickly), a follow-up state verification could be added: within one second of a fall, check whether the acceleration remains in a low-fluctuation state (body still) to further confirm the fall. The threshold can be dynamically adjusted using a machine learning model (such as one trained based on the user's historical movement data) to suit users of different age groups (e.g., the threshold can be appropriately lowered for elderly people whose movements are smaller).

[0059] In one embodiment of this application, the communication terminal connected to the communication module has a pre-stored community service center number, user's family member number, and emergency service number; when initiating a distress call, the communication module prioritizes connecting to the user's family member, and if the call is not connected, it automatically transfers the call to the community service center or emergency service number.

[0060] In one embodiment of this application, the wristband stores the user's personal health information, including blood type and medical history information, which can be sent to the contact person via the communication module when calling for help.

[0061] In one embodiment of this application, the communication module can be connected to a smart night light via Bluetooth or WiFi to automatically control the night light switch when the user is active.

[0062] In one embodiment of this application, the housing is integrally formed, and a waterproof ring is provided at the connection between the display screen 2 and the housing. This allows the user to use the wristband in the bathroom, providing a waterproof function.

[0063] Specifically, users can wear smart bracelets both indoors and outdoors.

[0064] Scenario 1: When a user falls indoors, the accelerometer and gyroscope inside the bracelet immediately detect the abnormal movement of the body rapidly falling and impacting the ground. The acceleration data generates a peak in the Z-axis direction (vertical direction) that far exceeds that of daily activities (such as walking or sitting), while the gyroscope detects a rapid and significant angular rotation of the body posture. The processor receives this data in real time and runs the built-in fall detection judgment. If the acceleration peak exceeds a preset threshold (e.g., 3.5g), the peak duration matches the characteristics of an impact, and the rate of change of the body rotation angle is drastic, the processor accurately determines the event as a "fall" within 0.5 seconds and generates a fall alarm signal.

[0065] Once the processor confirms a fall, it immediately activates the WiFi module in the communication module. If WiFi connection fails, it activates the eSIM module. Next, the processor first calls the positioning module (such as GPS / LBS / Wi-Fi location fusion) to obtain the precise current location information. Then, the system automatically initiates a voice call to the pre-set first contact's mobile phone and simultaneously sends an alert SMS (e.g., "Your family member XX may have fallen. Current location: [XX City, XX District, XX Road, XX Community, Building X, Unit X, Room XXX]. Please confirm and handle this as soon as possible!"). If the user's family member does not answer the phone, the system will automatically forward the call to the second contact (community service center) after 30 seconds and notify relevant personnel to check on the user. Throughout the process, the wristband's microphone 5 and speaker 4 remain on, allowing rescuers to communicate with the user one-way or two-way to understand the user's condition.

[0066] Furthermore, when sending alarm messages, the user's personal health information stored in the bracelet (such as blood type O and a history of hypertension) is also sent along with the alarm. This allows relevant staff to access this crucial medical information before visiting the user's home, saving valuable time for any potential medical interventions.

[0067] Scenario 2: The user suddenly feels chest tightness and shortness of breath. Although conscious, they are unable to return home on their own.

[0068] Users can press the SOS button 3 on the front of the bracelet. Upon receiving the SOS button 3 signal, the processor immediately initiates the emergency procedure without any fall detection. Afterwards, the communication and positioning modules operate simultaneously.

[0069] The system also initiates calls according to the preset call priority (family members → community service center → 120 emergency center) and sends an alert containing location and health information.

[0070] Users can directly talk to their family members through the bracelet's microphone 5 and inform them that they are feeling unwell. After receiving the message, the family members can quickly locate the location and rush to the scene, and can also contact the emergency center in advance.

[0071] In summary, the one-click emergency call smart bracelet of this application embodiment enables elderly people to automatically and accurately alarm after falling without relying on a mobile phone or manual operation. It allows them to directly contact their children or emergency medical services, significantly shortening response and treatment time after a fall and effectively reducing the risk of complications and life-threatening situations caused by delayed treatment. Simultaneously, accurate fall detection reduces false alarms and missed alarms, avoiding the annoyance of children receiving frequent invalid alerts and encouraging continued use by the elderly. This not only effectively protects the safety of elderly people living alone but also alleviates their children's concerns about their safety, helping the elderly maintain an independent lifestyle while ensuring their safety and improving their sense of well-being and psychological security.

[0072] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A smart bracelet with one-button emergency call function, characterized in that, The system includes a main body and a strap connecting the two ends of the bracelet. The main body includes a housing, a display screen, buttons, a PCB board, a processor, a communication module, a positioning module, and a sensor module. The display screen is located on the front of the housing and is used to display wristband information; The button is located on the housing and can be manually operated by the user to trigger the function; The PCB board is disposed inside the housing, the processor is disposed on the PCB board, and is electrically connected to the display screen, buttons, communication module, positioning module and sensor module; The sensor module is used to detect the user's movement status and physiological data, and to identify fall events; The positioning module is used to acquire and record the wristband's location information in real time; The communication module is used to establish a connection with an external communication terminal to automatically initiate an emergency call when a fall event is detected or when the user manually triggers it. The emergency call includes sending alarm information to a preset contact method or establishing a voice call.

2. The one-button emergency call smart bracelet according to claim 1, characterized in that, The sensor module includes an accelerometer, a PPG photoplethysmometer, and a gyroscope. The accelerometer is used to detect the user's step count and motion acceleration; The PPG photoplethysmography sensor is used to detect the user's heart rate in real time. The gyroscope is used to detect the angular velocity of the wristband's rotation; The accelerometer and gyroscope work together to determine whether a user has fallen by processing acceleration data and rotational angular velocity.

3. The one-button emergency call smart bracelet according to claim 1, characterized in that, The communication module includes a Bluetooth module, an eSIM module, and a WiFi module, wherein, The Bluetooth module is used to connect to external Bluetooth devices; The eSIM module has a built-in eSIM card for transmitting user data in outdoor environments; The WiFi module is used to receive and send data to the cloud server via a wireless network in an indoor environment.

4. The one-button emergency call smart bracelet according to claim 1, characterized in that, The communication module is connected to a remote terminal, and a microphone and a speaker are provided on the housing. The microphone is used by the user to make voice calls via the wristband; The speaker is used to play voice calls or alarm sounds to attract attention.

5. The one-button emergency call smart bracelet according to claim 1, characterized in that, The buttons include an SOS button on the front of the housing and operation buttons on the side of the housing; when the user presses the SOS button, the processor receives the button signal and controls the communication module to send a distress call to a preset contact method.

6. The one-button emergency call smart bracelet according to claim 2, characterized in that, The specific steps for detecting whether a fall has occurred using the sensor module are as follows: The axial acceleration of the wristband in the X, Y, and Z directions is acquired by an accelerometer and transmitted to the processor. The X-axis corresponds to the direction in which the user swings horizontally in front of their body while wearing the wristband; the Y-axis corresponds to the user's forward movement direction; and the Z-axis is perpendicular to both the X and Y axes. The direction in which the user walks while wearing the wristband is the Y-axis; the direction perpendicular to both the X and Y axes is the Z-axis. The gyroscope is used to acquire the angular change data of the wristband in the X, Y and Z directions; The processor processes the acceleration data and angle change data to determine the user's status. When the peak value of the acceleration data exceeds a preset threshold, the peak duration exceeds a set value, and the rate of change of the rotation angle exceeds the normal range of motion, it is determined that the user has fallen, and a fall signal is generated and transmitted to the processor.

7. The one-button emergency call smart bracelet according to claim 5, characterized in that, The communication terminal connected to the communication module has pre-stored the community service center number, the user's family member number, and the emergency service number. When initiating a distress call, the communication module prioritizes connecting to the user's family member. If the call is not answered, it automatically transfers the call to the community service center or the emergency service number.

8. The one-button emergency call smart bracelet according to claim 1, characterized in that, The bracelet stores the user's personal health information, including blood type and medical history. This personal health information can be sent to the contact person via the communication module when calling for help.

9. The one-button emergency call smart bracelet according to claim 1, characterized in that, The communication module connects to the smart night light via Bluetooth or WiFi to automatically control the night light's on / off state when the user is active.

10. The one-button emergency call smart bracelet according to claim 1, characterized in that, The housing is integrally molded, and a waterproof ring is provided at the connection between the display screen and the housing.

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