Swimming pool help-seeking system based on portable wearable device
Through portable wearable devices, the physiological and exercise status of swimmers are monitored in real time, potential drowning conditions are predicted and alarm information is generated, which solves the problem of untimely rescue of drowning accidents in the existing technology, and achieves efficient drowning situation judgment and rescue response.
Patent Information
- Application Number
- CN202411548423.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing portable wearable device rescue system cannot be predicted through the existing status of the swimmer, resulting in a high risk of untimely rescue of drowning accidents.
A swimming pool distress system based on portable wearable devices is designed, including data acquisition module, accident prediction module, accident judgment module, communication module, positioning module, alarm module and dynamic feedback mechanism module, to monitor the physiological status and movement of swimmers in real time Status, predict potential accidents, generate alarm information, and realize one-click call rescue and real-time location.
It realizes the early warning of real-time monitoring of swimmers' physiological status, accurately judges drowning conditions, reduces the risk of false alarms, improves rescue efficiency, and optimizes alarm information transmission through dynamic feedback mechanisms, enhancing the effectiveness of swimming pool safety management.
Smart Images
Figure CN119207008A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of swimming pool rescue, and in particular to a swimming pool rescue system based on a portable wearable device. Background Art
[0002] Swimming has become a leisure and fitness activity for more and more people. However, the incidence of drowning accidents is also increasing. One of the main reasons for these accidents is the untimely rescue, especially when the drowning person is in a coma and cannot send out a distress signal. In order to solve this problem, the effectiveness of the swimming pool safety system is crucial. At present, the implementation of the swimming pool alarm system can be mainly divided into three ways: sonar monitoring, video monitoring and wearable device monitoring. Sonar monitoring can detect abnormal conditions through underwater sound waves and can accurately identify drowning people, but its manufacturing and installation costs are high, and maintenance and repair are relatively complicated, which limits its wide application in general swimming pools. Video monitoring also has high technical requirements and costs, and the recognition accuracy may be affected under different lighting and water surface fluctuations. In contrast, wearable device monitoring, as an emerging solution, has gradually gained favor with its advantages of low cost and easy maintenance. These portable devices can monitor the status of swimmers in real time, such as heart rate and position. Once an abnormal situation is found, an alarm signal can be quickly issued to ensure timely rescue.
[0003] Existing portable wearable device rescue systems cannot predict the swimmer's current state, resulting in a higher probability of danger. Summary of the invention
[0004] In order to solve the above technical problems, a swimming pool rescue system based on a portable wearable device is provided. This technical solution solves the above problems.
[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: A swimming pool rescue system based on a portable wearable device, the swimming pool rescue system comprising: Data acquisition module: real-time monitoring of the swimmer’s current physiological state based on physiological monitoring sensors; Accident prediction module: The accident prediction module is electrically connected to the data acquisition module, and is used to predict accidents based on the swimmer's current physiological state and to warn of accidents beyond the safety range; Accident judgment module: The accident judgment module is electrically connected to the accident prediction module. The accident judgment module is used to monitor the swimmer's activity status data using an accelerometer and a gyroscope to judge whether a potential accident has occurred when a warning exceeds a safety range. If a potential accident has occurred, a potential accident alarm message is generated; Communication module: The communication module is electrically connected to the accident judgment module. The communication module is used to communicate with the monitoring system around the swimming pool and the lifeguard's equipment in real time. It has a one-key rescue call function, allowing swimmers to immediately notify lifeguards in an emergency; Positioning module: The positioning module is electrically connected to the accident judgment module, and the positioning module is used to locate the drowning person using an ultra-wideband UWB indoor positioning system; Alarm module: The alarm module is electrically connected to the accident judgment module, and is used to send out a signal alarm using a light emitting diode and / or a sound alarm when the accident judgment module determines that a potential accident has occurred; Dynamic feedback mechanism module: The dynamic feedback mechanism module is electrically connected to the alarm module. The dynamic feedback mechanism module is used for the system to automatically send alarm information to nearby lifeguards and management systems when a potential accident occurs to a swimmer.
[0006] Preferably, the accident prediction module specifically includes: Data collection unit: obtains the swimmer's current heart rate, blood oxygen saturation and body temperature data, and transmits them to the data processing unit via Bluetooth; Data processing unit: the collected physiological data of the swimmer at the current moment will be preprocessed, and the preprocessing includes removing sensor noise and filtering; Feature extraction unit: extracting key features from the preprocessed physiological data, wherein the key features include the heart rate change rate, the blood oxygen saturation change rate and the average body temperature; Physiological state prediction unit: input the extracted key features into the physiological state prediction model to predict the physiological state for a period of time in the future, and obtain the predicted physiological state; Among them, the formula of the physiological state prediction model is:
[0007] In the formula, To predict physiological status, is the intercept term of the model, is the weight coefficient of the feature, is the heart rate change rate, is the average heart rate in the current window, is the heart rate variability, is the average blood oxygen saturation of the current window, is the rate of change of blood oxygen saturation, is the average body temperature of the current window, is the variance of body temperature; Early warning trigger unit: When the predicted physiological state exceeds the safe range, the system triggers the early warning mechanism.
[0008] Preferably, the accident judgment module specifically includes: Data acquisition unit: When the safety range is exceeded, the accelerometer and gyroscope are used to obtain activity status data; A state recognition unit: analyzing the movement state of the swimmer according to the activity state data; Potential accident judgment algorithm unit: based on the swimmer's motion state, judge whether a potential accident has occurred; Alarm trigger unit: When a potential accident is determined to have occurred, the alarm system is triggered to generate potential accident alarm information.
[0009] Preferably, the accident judgment algorithm unit specifically includes: Based on the swimmer's motion state, determine whether an accident has occurred. The judgment formula is:
[0010] In the formula, is the category of the current active state, is the total acceleration, is the acceleration threshold in swimming state, is the acceleration threshold in static state, is the potential accidental acceleration threshold, is the total angular velocity, is the angular velocity threshold, For potential accidents, In swimming state, is a static state; Total acceleration Less than the threshold of swimming state , then the state is "swimming"; Total acceleration Less than the quiescent threshold , then the state is "stationary"; If the total acceleration Greater than the threshold of potential accidents With total angular velocity Exceeding the angular velocity threshold , the status is Potentially Accidental.
[0011] Preferably, drowning judgment is performed based on the activity state judgment result, wherein the drowning judgment formula is:
[0012] In the formula, A flag indicating whether an unexpected event is detected. A value of 1 indicates that an unexpected event is detected, and a value of 0 indicates that no unexpected event is detected. is the category of the current active state, For a specific activity state.
[0013] Preferably, the communication module specifically includes: Call function unit: swimmers can send emergency requests instantly with one-click operation; Data receiving unit: receiving data information to be uploaded, wherein the data information to be uploaded includes the swimmer's activity status, emergency request and potential accident alarm information; Data transmission unit: quickly transmits swimmers' activity status and emergency requests to the monitoring system and lifeguards' equipment around the pool through wireless communication technology; Status monitoring unit: The status monitoring unit continuously monitors the status of the communication. If the status is abnormal, it will issue a potential accident alarm message prompt; User Interface Unit: Swimmers view real-time status and emergency call button.
[0014] Preferably, the positioning module specifically includes: UWB signal transmitting unit: responsible for transmitting ultra-wideband signals; UWB signal receiving unit: receives the returned ultra-wideband signal and sends it to the position calculation unit; Position calculation unit: by analyzing the received ultra-wideband signal, the specific location of the drowning person is calculated using a triangulation algorithm; Data storage unit: stores historical positioning data and status records.
[0015] Preferably, the alarm module specifically includes: Signal receiving unit: receiving potential accident alarm information sent by the accident judgment module; LED control unit: When receiving potential accident alarm information, it controls the light-emitting diode to emit a visual alarm to alert people around; Sound alarm control unit: when receiving potential accident alarm information, activate the sound alarm and sound the alarm; Status indication unit: when receiving potential accident alarm information, it displays the current alarm status; Alarm delay setting unit: set the alarm delay time to avoid false alarms; System Test Unit: Regularly test the alarm function to ensure it can work properly in emergency situations.
[0016] Preferably, the dynamic feedback mechanism module specifically includes: Information collection unit: collects data to determine the swimmer’s specific location and unexpected status; Information processing unit: generates an alarm report containing the swimmer's location and accident information based on the collected data; Information sending unit: sends the processed alarm information to nearby lifeguards and management systems in real time through the communication module; Feedback loop unit: adjusts subsequent alarm and feedback strategies based on the lifeguard’s response; Data recording unit: records all alarm events and feedback information for subsequent analysis and system improvement.
[0017] Preferably, the feedback loop unit specifically includes: Receive response information: monitor the lifeguard’s response to the alarm and record the timely arrival at the scene; Evaluate response effectiveness: record the arrival time of lifeguards and rescue results, and judge the effectiveness of alarm information; Adjust alarm strategy: adjust alarm trigger conditions based on response evaluation results; Optimize information delivery: Based on feedback, improve the way and frequency of information delivery; Update system parameters: Adjust system settings, including alarm delay time and notification method.
[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes real-time monitoring of the physiological state of swimmers, predicting potential accidents in advance, improving early warning efficiency, and ensuring timely response. Secondly, combined with the motion state analysis of the accelerometer and gyroscope, the system can accurately judge the drowning situation and reduce the risk of false alarms. In addition, the system's communication module realizes a one-click call for help function, greatly improving the rescue efficiency. At the same time, the dynamic feedback mechanism ensures the rapid transmission of alarm information and the optimization of subsequent responses, providing real-time data support for lifeguards, and further enhancing the overall effectiveness of swimming pool safety management. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is the internal system framework diagram of the present invention; Figure 2 This is an internal system framework diagram of the accident prediction module in the present invention; Figure 3 This is an internal system framework diagram of the accident judgment module in the present invention; Figure 4 It is the internal system framework diagram of the communication module in the present invention; Figure 5 This is an internal system framework diagram of the positioning module in the present invention; Figure 6 It is the internal system framework diagram of the alarm module in the present invention; Figure 7 It is an internal system framework diagram of the dynamic feedback mechanism module in the present invention. DETAILED DESCRIPTION
[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0021] Reference Figure 1 As shown, a swimming pool rescue system based on a portable wearable device, the swimming pool rescue system includes: Data acquisition module: real-time monitoring of the swimmer’s current physiological state based on physiological monitoring sensors; Accident prediction module: The accident prediction module is electrically connected to the data acquisition module, and is used to predict accidents based on the swimmer's current physiological state and to warn of accidents beyond the safety range; Accident judgment module: The accident judgment module is electrically connected to the accident prediction module. The accident judgment module is used to monitor the swimmer's activity status data using an accelerometer and a gyroscope to judge whether a potential accident has occurred when a warning exceeds a safety range. If a potential accident has occurred, a potential accident alarm message is generated; Communication module: The communication module is electrically connected to the accident judgment module. The communication module is used to communicate with the monitoring system around the swimming pool and the lifeguard's equipment in real time. It has a one-key rescue call function, allowing swimmers to immediately notify lifeguards in an emergency; Positioning module: The positioning module is electrically connected to the accident judgment module, and the positioning module is used to locate the drowning person using an ultra-wideband UWB indoor positioning system; Alarm module: The alarm module is electrically connected to the accident judgment module, and is used to send out a signal alarm using a light emitting diode and / or a sound alarm when the accident judgment module determines that a potential accident has occurred; Dynamic feedback mechanism module: The dynamic feedback mechanism module is electrically connected to the alarm module. The dynamic feedback mechanism module is used for the system to automatically send alarm information to nearby lifeguards and management systems when a potential accident occurs to a swimmer.
[0022] Reference Figure 2 As shown, the accident prediction module specifically includes: Data collection unit: obtains the swimmer's current heart rate, blood oxygen saturation and body temperature data, and transmits them to the data processing unit via Bluetooth; Data processing unit: the collected physiological data of the swimmer at the current moment will be preprocessed, and the preprocessing includes removing sensor noise and filtering; Feature extraction unit: extracting key features from the preprocessed physiological data, wherein the key features include the heart rate change rate, the blood oxygen saturation change rate and the average body temperature; Physiological state prediction unit: input the extracted key features into the physiological state prediction model to predict the physiological state for a period of time in the future, and obtain the predicted physiological state; Among them, the formula of the physiological state prediction model is:
[0023] In the formula, To predict physiological status, is the intercept term of the model, is the weight coefficient of the feature, is the heart rate change rate, is the average heart rate in the current window, is the heart rate variability, is the average blood oxygen saturation of the current window, is the rate of change of blood oxygen saturation, is the average body temperature of the current window, is the variance of body temperature; Early warning trigger unit: When the predicted physiological state exceeds the safe range, the system triggers the early warning mechanism.
[0024] Reference Figure 3 As shown, the accident judgment module specifically includes: Data acquisition unit: When the safety range is exceeded, the accelerometer and gyroscope are used to obtain activity status data; A state recognition unit: analyzing the movement state of the swimmer according to the activity state data; Potential accident judgment algorithm unit: based on the swimmer's motion state, judge whether a potential accident has occurred; Alarm trigger unit: When a potential accident is determined to have occurred, the alarm system is triggered to generate potential accident alarm information.
[0025] The accident judgment algorithm unit specifically includes: Based on the swimmer's motion state, determine whether an accident has occurred. The judgment formula is:
[0026] In the formula, is the category of the current active state, is the total acceleration, is the acceleration threshold in swimming state, is the acceleration threshold in static state, is the potential accidental acceleration threshold, is the total angular velocity, is the angular velocity threshold, For potential accidents, In swimming state, is a static state; Total acceleration Less than the threshold of swimming state , then the state is "swimming"; Total acceleration Less than the quiescent threshold , then the state is "stationary"; If the total acceleration Greater than the threshold of potential accidents With total angular velocity Exceeding the angular velocity threshold , the status is Potentially Accidental.
[0027] Based on the activity status judgment result, drowning judgment is performed, wherein the drowning judgment formula is:
[0028] In the formula, A flag indicating whether an unexpected event is detected. A value of 1 indicates that an unexpected event is detected, and a value of 0 indicates that no unexpected event is detected. is the category of the current active state, For a specific activity state.
[0029] Reference Figure 4 As shown, the communication module specifically includes: Call function unit: swimmers can send emergency requests instantly with one-click operation; Data receiving unit: receiving data information to be uploaded, wherein the data information to be uploaded includes the swimmer's activity status, emergency request and potential accident alarm information; Data transmission unit: quickly transmits swimmers' activity status and emergency requests to the monitoring system and lifeguards' equipment around the pool through wireless communication technology; Status monitoring unit: The status monitoring unit continuously monitors the status of the communication. If the status is abnormal, it will issue a potential accident alarm message prompt; User Interface Unit: Swimmers view real-time status and emergency call button.
[0030] Reference Figure 5 As shown, the positioning module specifically includes: UWB signal transmitting unit: responsible for transmitting ultra-wideband signals; UWB signal receiving unit: receives the returned ultra-wideband signal and sends it to the position calculation unit; Position calculation unit: by analyzing the received ultra-wideband signal, the specific location of the drowning person is calculated using a triangulation algorithm; Data storage unit: stores historical positioning data and status records.
[0031] Reference Figure 6 As shown, the alarm module specifically includes: Signal receiving unit: receiving potential accident alarm information sent by the accident judgment module; LED control unit: When receiving potential accident alarm information, it controls the light-emitting diode to emit a visual alarm to alert people around; Sound alarm control unit: when receiving potential accident alarm information, activate the sound alarm and sound the alarm; Status indication unit: when receiving potential accident alarm information, it displays the current alarm status; Alarm delay setting unit: set the alarm delay time to avoid false alarms; System Test Unit: Regularly test the alarm function to ensure it can work properly in emergency situations.
[0032] Reference Figure 7 As shown, the dynamic feedback mechanism module specifically includes: Information collection unit: collects data to determine the swimmer’s specific location and unexpected status; Information processing unit: generates an alarm report containing the swimmer's location and accident information based on the collected data; Information sending unit: sends the processed alarm information to nearby lifeguards and management systems in real time through the communication module; Feedback loop unit: adjusts subsequent alarm and feedback strategies based on the lifeguard’s response; Data recording unit: records all alarm events and feedback information for subsequent analysis and system improvement.
[0033] The feedback loop unit specifically includes: Receive response information: monitor the lifeguard’s response to the alarm and record the timely arrival at the scene; Evaluate response effectiveness: record the arrival time of lifeguards and rescue results, and judge the effectiveness of alarm information; Adjust alarm strategy: adjust alarm trigger conditions based on response evaluation results; Optimize information delivery: Based on feedback, improve the way and frequency of information delivery; Update system parameters: Adjust system settings, including alarm delay time and notification method.
[0034] The use process of the present invention is: Step 1: Data collection unit: obtain the swimmer's heart rate, blood oxygen saturation and body temperature data in real time and transmit it to the central processing unit via Bluetooth; Step 2: The collected data will be preprocessed, and the preprocessing includes removing sensor noise and filtering; Step 3: extracting key features from the preprocessed physiological data, wherein the key features include heart rate change rate, blood oxygen saturation and body temperature; Step 4: Establish a prediction model of physiological state based on the extracted key features; Step 5: Based on the established physiological state prediction model, the system predicts the swimmer's physiological state; Step 6: When the heart rate exceeds 180 bpm, the blood oxygen saturation is lower than 90%, and the body temperature is lower than 35.9℃, the system triggers the early warning mechanism.
[0035] Step 7: Get real-time data from the accelerometer and gyroscope; Step 8: Analyze the movement status and determine the swimmer’s posture; Step 9: Determine drowning based on movement status and water surface changes; Step 10: When drowning is determined to have occurred, the alarm system is triggered.
[0036] Step 11: Receive real-time data, including the swimmer’s activity status, acceleration, and potential accidental alerts; Step 12: Rapidly transmit the swimmer's status and emergency request to the lifeguard equipment via wireless communication technology; Step 13: The swimmer calls for help immediately with one-touch operation. When the emergency button is pressed, the system automatically triggers an alarm signal to notify the lifeguard to go to the scene immediately; Step 14: The swimmer checks the real-time status and emergency call button; Step 15: Transmitting an ultra-wideband signal to locate the position of the drowning person; Step 16: Receive signals from other UWB devices to obtain accurate location data; Step 17: Calculate the specific location of the drowning person by analyzing the received signal using a triangulation algorithm; Step 18: Synchronize location data with other modules in real time; Step 19: Store historical positioning data and status records.
[0037] Step 20: Collect data from the alarm module, the positioning module and the accident judgment module to determine the specific location and accident status of the swimmer; Step 21: Generate an alarm report including the swimmer's location and accident information based on the collected data; Step 22: Send the processed alarm information to nearby lifeguards and management systems in real time through the communication module; Step 23: Adjust the subsequent alarm and feedback strategies according to the lifeguard's response; Step 24: Record all alarm events and feedback information for subsequent analysis and system improvement.
[0038] Step 25: Collect data from the alarm module, the positioning module and the accident judgment module to determine the specific location and accident status of the swimmer; Step 26: Generate an alarm report including the swimmer's location and accident information based on the collected data; Step 27: Send the processed alarm information to nearby lifeguards and management systems in real time through the communication module; Step 28: Adjust the subsequent alarm and feedback strategies according to the lifeguard's response; Step 29: Record all alarm events and feedback information for subsequent analysis and system improvement.
[0039] To sum up, the advantages of the present invention are: the present invention proposes real-time monitoring of the physiological state of the swimmer, predicting potential accidents in advance, improving the early warning efficiency, and ensuring timely response. Secondly, combined with the motion state analysis of the accelerometer and the gyroscope, the system can accurately judge the drowning situation and reduce the risk of false alarms. In addition, the communication module of the system realizes a one-key call for help function, which greatly improves the rescue efficiency. At the same time, the dynamic feedback mechanism ensures the rapid transmission of alarm information and the optimization of subsequent responses, providing real-time data support for lifeguards, and further enhancing the overall effectiveness of swimming pool safety management.
[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims
1. A swimming pool rescue system based on a portable wearable device, characterized in that: The pool rescue system includes: Data acquisition module: real-time monitoring of the swimmer’s current physiological state based on physiological monitoring sensors; Accident prediction module: The accident prediction module is electrically connected to the data acquisition module, and is used to predict accidents based on the swimmer's current physiological state and to warn of accidents beyond the safety range; Accident judgment module: The accident judgment module is electrically connected to the accident prediction module. The accident judgment module is used to monitor the swimmer's activity status data using an accelerometer and a gyroscope to judge whether a potential accident has occurred when a warning exceeds a safety range. If a potential accident has occurred, a potential accident alarm message is generated; Communication module: The communication module is electrically connected to the accident judgment module. The communication module is used to communicate with the monitoring system around the swimming pool and the lifeguard's equipment in real time. It has a one-key rescue call function, allowing swimmers to immediately notify lifeguards in an emergency; Positioning module: The positioning module is electrically connected to the accident judgment module, and the positioning module is used to locate the drowning person using an ultra-wideband UWB indoor positioning system; Alarm module: The alarm module is electrically connected to the accident judgment module, and is used to send out a signal alarm using a light emitting diode and / or a sound alarm when the accident judgment module determines that a potential accident has occurred; Dynamic feedback mechanism module: The dynamic feedback mechanism module is electrically connected to the alarm module. The dynamic feedback mechanism module is used for the system to automatically send alarm information to nearby lifeguards and management systems when a potential accident occurs to a swimmer.
2. A swimming pool rescue system based on a portable wearable device according to claim 1, characterized in that: The accident prediction module specifically includes: Data collection unit: obtains the swimmer's current heart rate, blood oxygen saturation and body temperature data, and transmits them to the data processing unit via Bluetooth; Data processing unit: the collected physiological data of the swimmer at the current moment will be preprocessed, and the preprocessing includes removing sensor noise and filtering; Feature extraction unit: extracting key features from the preprocessed physiological data, wherein the key features include the heart rate change rate, the blood oxygen saturation change rate and the average body temperature; Physiological state prediction unit: input the extracted key features into the physiological state prediction model to predict the physiological state for a period of time in the future, and obtain the predicted physiological state; Among them, the formula of the physiological state prediction model is: In the formula, To predict physiological status, is the intercept term of the model, is the weight coefficient of the feature, is the heart rate change rate, is the average heart rate in the current window, is the heart rate variability, is the average blood oxygen saturation of the current window, is the rate of change of blood oxygen saturation, is the average body temperature of the current window, is the variance of body temperature; Early warning trigger unit: When the predicted physiological state exceeds the safe range, the system triggers the early warning mechanism.
3. A swimming pool rescue system based on a portable wearable device according to claim 2, characterized in that: The accident judgment module specifically includes: Data acquisition unit: When the safety range is exceeded, the accelerometer and gyroscope are used to obtain activity status data; A state recognition unit: analyzing the movement state of the swimmer according to the activity state data; Potential accident judgment algorithm unit: based on the swimmer's motion state, judge whether a potential accident has occurred; Alarm trigger unit: When a potential accident is determined to have occurred, the alarm system is triggered to generate potential accident alarm information.
4. A swimming pool rescue system based on a portable wearable device according to claim 3, characterized in that: The accident judgment algorithm unit specifically includes: Based on the swimmer's motion state, determine whether an accident has occurred. The judgment formula is: In the formula, is the category of the current active state, is the total acceleration, is the acceleration threshold in swimming state, is the acceleration threshold in static state, is the potential accidental acceleration threshold, is the total angular velocity, is the angular velocity threshold, For potential accidents, In swimming state, is a static state; Total acceleration Less than the swimming state threshold , then the state is "swimming"; Total acceleration Less than the quiescent threshold , the state is "stationary"; If the total acceleration Greater than the threshold of potential accidents With total angular velocity Exceeding the angular velocity threshold , the status is "Potentially unexpected".
5. A swimming pool rescue system based on a portable wearable device according to claim 4, characterized in that: Based on the activity status judgment result, drowning judgment is performed, wherein the drowning judgment formula is: In the formula, A flag indicating whether an unexpected event is detected. A value of 1 indicates that an unexpected event is detected, and a value of 0 indicates that no unexpected event is detected. is the category of the current active state, For a specific activity state.
6. A swimming pool rescue system based on a portable wearable device according to claim 5, characterized in that: The communication module specifically includes: Call function unit: swimmers can send emergency requests instantly with one-click operation; Data receiving unit: receiving data information to be uploaded, wherein the data information to be uploaded includes the swimmer's activity status, emergency request and potential accident alarm information; Data transmission unit: quickly transmits swimmers' activity status and emergency requests to the monitoring system and lifeguards' equipment around the pool through wireless communication technology; Status monitoring unit: The status monitoring unit continuously monitors the status of the communication. If the status is abnormal, it will issue a potential accident alarm message prompt; User Interface Unit: Swimmers view real-time status and emergency call button.
7. A swimming pool rescue system based on a portable wearable device according to claim 6, characterized in that: The positioning module specifically includes: UWB signal transmitting unit: responsible for transmitting ultra-wideband signals; UWB signal receiving unit: receives the returned ultra-wideband signal and sends it to the position calculation unit; Position calculation unit: by analyzing the received ultra-wideband signal, the specific location of the drowning person is calculated using a triangulation algorithm; Data storage unit: stores historical positioning data and status records.
8. A swimming pool rescue system based on a portable wearable device according to claim 7, characterized in that: The alarm module specifically includes: Signal receiving unit: receiving potential accident alarm information sent by the accident judgment module; LED control unit: When receiving potential accident alarm information, it controls the light-emitting diode to emit a visual alarm to alert people around; Sound alarm control unit: when receiving potential accident alarm information, activate the sound alarm and sound the alarm; Status indication unit: when receiving potential accident alarm information, it displays the current alarm status; Alarm delay setting unit: set the alarm delay time to avoid false alarms; System Test Unit: Regularly test the alarm function to ensure it can work properly in emergency situations.
9. A swimming pool rescue system based on a portable wearable device according to claim 8, characterized in that: The dynamic feedback mechanism module specifically includes: Information collection unit: collects data to determine the swimmer’s specific location and unexpected status; Information processing unit: generates an alarm report containing the swimmer's location and accident information based on the collected data; Information sending unit: sends the processed alarm information to nearby lifeguards and management systems in real time through the communication module; Feedback loop unit: adjusts subsequent alarm and feedback strategies based on the lifeguard’s response; Data recording unit: records all alarm events and feedback information for subsequent analysis and system improvement.
10. A swimming pool rescue system based on a portable wearable device according to claim 9, characterized in that: The feedback loop unit specifically includes: Receive response information: monitor the lifeguard’s response to the alarm and record the timely arrival at the scene; Evaluate response effectiveness: record the arrival time of lifeguards and rescue results, and judge the effectiveness of alarm information; Adjust alarm strategy: adjust alarm trigger conditions based on response evaluation results; Optimize information delivery: Based on feedback, improve the way and frequency of information delivery; Update system parameters: Adjust system settings, including alarm delay time and notification method.