Wearable device and method of disposal that can trigger detachment of the device

Abstract

The present disclosure belongs to the technical field of intelligent wearing, and provides a wearable device capable of triggering a separation device and a disposal method. The wearable device comprises at least a central control module, a pressure sensor and at least one state sensor. The pressure sensor is configured to continuously acquire an environmental pressure value of a position where the wearable device is located based on a pressure sampling period. The state sensor is configured to continuously collect state data of a wearer in an environment with a state sampling period. The central control module is configured to determine the state sampling period according to the environmental pressure value acquired by the pressure sensor in real time and a preset condition, determine state information of the wearer in the environment based on the state data continuously collected by the state sensor, and trigger the separation device when the state information meets a preset separation condition. The wearable device can accurately determine whether the wearer needs to separate from the current environment, and the wearer can timely respond and separate from the current environment when there is a danger in the current environment.

Description

Technical Field

[0001] This disclosure belongs to the field of smart wearable technology, and in particular relates to a wearable device and disposal method that can trigger a detachment device. Background Technology

[0002] With the increasing popularity of wearable devices, these devices have been applied to various daily and sports scenarios. Taking smartwatches as an example, wearers can use them to collect exercise data and evaluate their performance during exercise. Currently, most consumer-grade smartwatches are waterproof, allowing users to wear them in underwater scenarios such as swimming and diving.

[0003] However, most existing smartwatches can only record basic exercise data such as swimming distance and duration, and cannot effectively monitor the wearer's safety status in the water. They are unable to accurately determine whether the wearer is in a dangerous situation such as drowning, and cannot respond in time when the wearer is in danger of drowning. Summary of the Invention

[0004] To address the aforementioned issues, this disclosure provides a wearable device and disposal method that can trigger a disengagement device.

[0005] This disclosure is achieved through the following technical solution: In a first aspect, embodiments of this disclosure provide a wearable device capable of triggering a disengagement device, the wearable device including at least a central control module, a pressure sensor, and at least one status sensor; The pressure sensor is configured to continuously acquire the ambient pressure value at the location of the wearable device based on the pressure sampling period; The state sensor is configured to continuously collect the wearer's state data in the environment at a state sampling period; The central control module is configured to: determine the state sampling period based on the environmental pressure value obtained in real time by the pressure sensor and preset conditions; determine the wearer's state information in the environment based on the state data continuously collected by the state sensor; and trigger the disengagement device when the state information meets the preset disengagement conditions.

[0006] Furthermore, The status sensor includes a nine-axis motion sensor and a heart rate sensor, and the status sampling period includes a motion sampling period and a heart rate sampling period; The central control module is also configured to: determine the environmental characteristic value corresponding to the location of the wearable device based on the environmental pressure value acquired in real time by the pressure sensor; and determine the motion sampling period and heart rate sampling period based on the warning value when the environmental characteristic value of the location of the wearable device reaches a warning value. The nine-axis motion sensor is configured to continuously collect the wearer's three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data in the environment at the motion sampling cycle. The heart rate sensor is configured to continuously collect the wearer's real-time heart rate data at the heart rate sampling cycle.

[0007] Furthermore, The central control module is further configured to: determine the wearer's motion posture and horizontal displacement in the environment based on the three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data collected in real time by the nine-axis motion sensor; determine the wearer's real-time heart rate changes in the environment based on the real-time heart rate data collected in real time by the heart rate sensor; and trigger the disengagement device when the wearer's motion posture and horizontal displacement in the environment, and the real-time heart rate changes, satisfy at least one or more of the preset disengagement conditions; wherein, The preset disengagement conditions include: the wearer's movement posture is abnormal in the environment and there is no horizontal displacement; the wearer's real-time heart rate in the environment drops beyond a preset safety threshold within a preset time range.

[0008] Furthermore, The central control module is also configured to: when the target mode is not enabled, determine a first pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the first environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching the trigger value, enable the target mode, determine a second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor. The pressure sensor is further configured to: continuously acquire the first ambient pressure value at the location of the wearable device based on the first pressure sampling period; and continuously acquire the second ambient pressure value at the location of the wearable device based on the second pressure sampling period; wherein, The duration of the second pressure sampling period is shorter than the duration of the first pressure sampling period.

[0009] Furthermore, The central control module is also configured to: when the target mode is enabled, determine a third pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the third environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching a trigger value, determine a second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor. The pressure sensor is further configured to: continuously acquire the third ambient pressure value at the location of the wearable device based on the third pressure sampling period; and continuously acquire the second ambient pressure value at the location of the wearable device based on the second pressure sampling period; wherein, The duration of the second pressure sampling period is less than the duration of the third pressure sampling period, and the duration of the third pressure sampling period is less than the duration of the first pressure sampling period.

[0010] Furthermore, The central control module is also configured to: in response to the environmental characteristic value of the location of the wearable device reaching a critical value, determine a fourth pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the fourth environmental pressure value obtained in real time by the pressure sensor; The pressure sensor is further configured to: continuously acquire the fourth environmental pressure value at the location of the wearable device based on the fourth pressure sampling period; wherein the duration of the fourth pressure sampling period is less than the duration of the second pressure sampling period, and the environmental feature value corresponding to the threshold value is greater than the environmental feature value corresponding to the trigger value.

[0011] Furthermore, The central control module is also configured to: in response to the environmental characteristic value of the location of the wearable device reaching the warning value, determine the fifth pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the fifth environmental pressure value obtained in real time by the pressure sensor; The pressure sensor is further configured to: continuously acquire the fifth environmental pressure value at the location of the wearable device based on the fifth pressure sampling period; wherein the duration of the fifth pressure sampling period is less than the duration of the fourth pressure sampling period, and the environmental characteristic value corresponding to the warning value is greater than the environmental characteristic value corresponding to the threshold value.

[0012] Furthermore, The wearable device also includes a positioning module; the central control module is further configured to: when the target mode is activated, continuously read the location data of the positioning module at a preset positioning cycle, determine whether the water area where the wearer is located is a sea area based on the location data, and determine the water density of the water area where the wearer is currently located; wherein, the water density includes freshwater density and seawater density.

[0013] Furthermore, The central control module is also configured to: determine the preparation time and detachment time of the detachment device, and upload the preparation time and detachment time of the detachment device to the server; and send a feedback signal to the server each time the wearable device surfaces. The preparation time and disengagement time of the disengagement device are used by the server to calculate the timeout alarm time; after receiving the previous feedback signal sent by the wearable device, if the server does not receive the next feedback signal sent by the wearable device within the timeout alarm time range, it sends alarm information to the target object.

[0014] Secondly, based on the same inventive concept, this disclosure also provides a method for processing a wearable device, applied to a wearable device including at least a central control module, a pressure sensor, and at least one status sensor, the method comprising: The pressure sensor continuously acquires the ambient pressure value at the location of the wearable device based on the pressure sampling period; The central control module determines the state sampling period based on the environmental pressure value obtained in real time by the pressure sensor and preset conditions; The status sensor continuously collects the wearer's status data in the environment at the status sampling period; The central control module determines the wearer's status information in the environment based on the status data continuously collected by the status sensor. When the status information meets the preset detachment conditions, the detachment device is triggered.

[0015] In this embodiment, a pressure sensor continuously acquires the ambient pressure value at the location of the wearable device based on a pressure sampling period. The central control module determines the state sampling period based on the real-time ambient pressure value acquired by the pressure sensor and preset conditions. The state sensor continuously collects the wearer's state data in the environment according to the state sampling period. The central control module determines the wearer's state information in the environment based on the continuously collected state data. When the state information meets preset evacuation conditions, the evacuation device is triggered. This enables accurate judgment of whether the wearer needs to evacuate the current environment, and timely response and evacuation when the wearer faces a danger in the current environment.

[0016] Other features and advantages of this disclosure will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the disclosure. The objects and other advantages of this disclosure may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural block diagram of a wearable device provided in an embodiment of this disclosure; Figure 2 This is a flowchart illustrating a method for disposing of a wearable device according to an embodiment of the present disclosure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0020] Firstly, Figure 1 A structural block diagram of a wearable device provided in an embodiment of this disclosure is shown below. Figure 1 As shown, this disclosure provides a wearable device that can trigger a disengagement device. The wearable device includes at least a central control module, a pressure sensor, and at least one status sensor.

[0021] The pressure sensor is configured to continuously acquire the ambient pressure value at the location of the wearable device based on a pressure sampling period. Inside the pressure sensor is an extremely thin silicon diaphragm. When ambient pressure acts on the silicon diaphragm, it undergoes a slight bending deformation. This bending deformation induces a piezoresistive effect, changing the resistance value of the resistor integrated on the silicon diaphragm. The circuitry within the pressure sensor converts this resistance change into a voltage signal, which, after analog-to-digital conversion, outputs a precise ambient pressure value. The pressure sensor is normally in standby mode and does not need to continuously output ambient pressure values. Based on the pressure sampling period, the central control module sends detection signals to the pressure sensor at fixed intervals. Upon receiving the detection signal, the pressure sensor determines the ambient pressure value. At this point, the central control module uses the pressure sensor to determine the ambient pressure value at the location of the wearable device. Each time the central control module determines the ambient pressure value at the location of the wearable device using the pressure sensor, it determines the latest environmental characteristic value of the wearable device's location based on the most recently acquired ambient pressure value.

[0022] The status sensors are configured to continuously collect the wearer's status data in the environment at a status sampling period. Multiple status sensors can be set on the wearable device, and the status data acquired by each sensor corresponds to the wearer's status in the environment. The status sampling period of the status sensors is determined by the central control module based on the real-time environmental pressure value obtained by the pressure sensor and preset conditions. The status sampling periods of different status sensors can be the same or different.

[0023] The central control module is configured to: determine the state sampling period based on the real-time environmental pressure value obtained by the pressure sensor and preset conditions; determine the wearer's state information in the environment based on the state data continuously collected by the state sensor; and trigger the disengagement device when the state information meets the preset disengagement conditions. Based on the wearer's state information in the current environment, if it is determined that the wearer needs to be removed from the current environment, the central control module can trigger the disengagement device via an electrical signal to help the wearer leave the current environment.

[0024] In this embodiment, a pressure sensor continuously acquires the ambient pressure value at the location of the wearable device based on a pressure sampling period. The central control module determines the state sampling period based on the real-time ambient pressure value acquired by the pressure sensor and preset conditions. The state sensor is configured to continuously collect the wearer's state data in the environment according to the state sampling period. The central control module determines the wearer's state information in the environment based on the continuously collected state data from the state sensor. When the state information meets preset evacuation conditions, the evacuation device is triggered. This enables accurate judgment of whether the wearer needs to evacuate the current environment, and timely response and evacuation when the wearer faces a danger in the current environment.

[0025] In some examples, the status sensors include a nine-axis motion sensor and a heart rate sensor, and the status sampling period includes a motion sampling period and a heart rate sampling period.

[0026] The central control module is also configured to: determine the environmental characteristic value corresponding to the location of the wearable device based on the environmental pressure value obtained in real time by the pressure sensor; and determine the motion sampling period and heart rate sampling period based on the warning value when the environmental characteristic value of the location of the wearable device reaches the warning value.

[0027] The nine-axis motion sensor is configured to continuously collect three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data of the wearer in the environment at motion sampling cycles.

[0028] The heart rate sensor is configured to continuously collect the wearer's real-time heart rate data at heart rate sampling intervals.

[0029] In this embodiment, the preset conditions include determining the environmental characteristic value corresponding to the location of the wearable device based on the environmental pressure value, and determining the state sampling period based on the environmental characteristic value of the location of the wearable device reaching a warning value. When the wearer is engaged in underwater activities, the environmental pressure value includes water pressure, the environmental characteristic value includes water depth, and the warning value is the water depth at which there is a risk of drowning. The motion sampling period and heart rate sampling period can be set the same, or they can be set separately according to the warning value. If multiple warning values ​​are set, each warning value can correspond to one motion sampling period and one heart rate sampling period. The deeper the water depth corresponding to the warning value, the shorter the duration of the motion sampling period and the heart rate sampling period. The actual settings of the warning value, motion sampling period, and heart rate sampling period can be automatically adjusted or manually adjusted according to the wearer's personal data, and need to take into account factors such as the specific parameters of the wearable device, the preparation time of the disengagement device, and the disengagement time. While collecting the wearer's heart rate data, the wearer's blood oxygen data can also be collected. The blood oxygen data can be collected using a heart rate sensor.

[0030] In some examples, the central control module is also configured to: determine the wearer's motion posture and horizontal displacement in the environment based on real-time 3D acceleration data, 3D angular velocity data, and 3D magnetic field data collected by the nine-axis motion sensor; determine the wearer's real-time heart rate changes in the environment based on real-time heart rate data collected by the heart rate sensor; and trigger the disengagement device when the wearer's motion posture, horizontal displacement, and real-time heart rate changes in the environment meet at least one or more preset disengagement conditions. The preset disengagement conditions include: the wearer's motion posture in the environment is abnormal and there is no horizontal displacement; the wearer's real-time heart rate in the environment decreases beyond a preset safety threshold within a preset time range.

[0031] In this embodiment, taking the wearer's current environment as an underwater environment as an example, the central control module determines the wearer's underwater movement posture based on continuously collected three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data. Underwater movement postures include upright floating, floating on one's back, lying face down, rolling to the side, swimming autonomously, unconsciously losing balance and rolling, and vertical sinking. Based on the continuously collected three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data, the wearer's horizontal displacement is calculated. The horizontal displacement is the actual movement data generated by the wearer in the horizontal plane after eliminating invalid rigid body movements such as rotation in place. The wearer's movement posture and horizontal displacement can be determined using an inertial attitude fusion algorithm based on the continuously collected three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data. Abnormal underwater movement postures include: the body maintaining a large tilt, disordered limb movements, significantly weakened limb movements, continuous irregular body orientation deviation, and loss of the stable movement characteristics of normal wading activities. If there is an abnormal movement posture and the wearer has no horizontal displacement, it may be in a situation where it urgently needs to leave the current environment. When the wearer's real-time heart rate in the water drops beyond a preset safety threshold within a preset time range, it indicates a rapid decrease in heart rate and severe bradycardia, suggesting an urgent need to escape the current environment. Drowning can be determined by either abnormal movement posture without horizontal displacement in the water or a real-time heart rate drop exceeding the preset safety threshold within a preset time range; alternatively, both conditions can be present for a drowning diagnosis. Besides heart rate and movement posture, other data such as blood oxygen saturation can also be used to determine drowning. Furthermore, the central control module has a preset voting threshold. When any status sensor detects an anomaly, a vote is immediately initiated. Once the number of votes reaches the preset threshold, drowning is determined.

[0032] In some examples, the central control module is also configured to: when the target mode is not enabled, determine the first pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the first environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching the trigger value, enable the target mode, determine the second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor.

[0033] The pressure sensor is also configured to: continuously acquire a first ambient pressure value at the location of the wearable device based on a first pressure sampling period; and continuously acquire a second ambient pressure value at the location of the wearable device based on a second pressure sampling period; wherein the duration of the second pressure sampling period is shorter than the duration of the first pressure sampling period.

[0034] In this embodiment, taking the wearer's current environment as an underwater environment as an example, the target mode includes underwater activity modes such as swimming mode, snorkeling mode, and diving mode. The environmental characteristic value is water depth, and the trigger value corresponds to the water depth at which the wearer enters the water. When the wearer does not actively activate the target mode, the first environmental pressure value at the location of the wearable device can be determined by a pressure sensor. The central control module determines the water depth corresponding to the location of the wearable device based on the real-time acquired first environmental pressure value. If the wearer is not in the water, the water depth is zero. This step can be preset with activation conditions. For example, the wearable device also includes a sensor for detecting whether it is in water. When the wearable device is detected to be in water, it starts to continuously determine the first environmental pressure value at the location of the wearable device through the pressure sensor at a first pressure sampling cycle. When the water depth corresponding to the first environmental pressure value is zero for a period of time, and the wearable device is not detected to be in the water again, the determination of the first environmental pressure value at the location of the wearable device through the pressure sensor stops. After the water depth corresponding to the location of the wearable device reaches the trigger value based on the real-time acquired first environmental pressure value, it is determined that the wearer has entered the water, and the central control module activates the target mode. Typically, a relatively shallow water depth is used as the trigger value, which corresponds to a water depth less than the warning value. The duration of the second pressure sampling cycle is shorter than that of the first pressure sampling cycle. After determining that the wearer has entered the water, the sampling cycle for the environmental pressure value is shortened. When the wearer is not in the water, the environmental pressure value is sampled with a longer sampling cycle, thus rationally allocating the power consumption of the wearable device.

[0035] In some examples, the central control module is also configured to: when the target mode is enabled, determine the third pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the third environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching the trigger value, determine the second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor.

[0036] The pressure sensor is also configured to: continuously acquire a third ambient pressure value at the location of the wearable device based on a third pressure sampling period; and continuously acquire a second ambient pressure value at the location of the wearable device based on a second pressure sampling period; wherein the duration of the second pressure sampling period is less than the duration of the third pressure sampling period, and the duration of the third pressure sampling period is less than the duration of the first pressure sampling period.

[0037] In this embodiment, taking the wearer's current environment as an underwater environment as an example, the target mode includes underwater activity modes such as swimming mode, snorkeling mode, and diving mode. The environmental characteristic value is water depth, and the trigger value corresponds to the water depth at which the wearer enters the water. When the wearer actively activates the target mode, the third environmental pressure value at the location of the wearable device is determined continuously using a third pressure sampling cycle through a pressure sensor. The central control module determines the water depth corresponding to the location of the wearable device based on the real-time acquired third environmental pressure value. If the wearer has not entered the water, the water depth is zero. After determining that the water depth corresponding to the location of the wearable device reaches the trigger value based on each acquired third environmental pressure value, it is determined that the wearer has entered the water, and the sampling cycle of the environmental pressure value is changed from the third pressure sampling cycle to the second pressure sampling cycle. Typically, a relatively shallow water depth is used as the trigger value, and the water depth corresponding to the trigger value is less than the water depth corresponding to the warning value. The duration of the second pressure sampling period is shorter than that of the third pressure sampling period, and the duration of the third pressure sampling period is shorter than that of the first pressure sampling period. After determining that the wearer has entered the water, the sampling period of the environmental pressure value is shortened. When the wearer has not entered the water, the environmental pressure value is sampled with a longer sampling period. At the same time, when the wearer turns on the target mode in advance, the sampling period of the environmental pressure value is appropriately shortened compared to when the target mode is not turned on in advance, so as to reasonably allocate the power consumption of the wearable device.

[0038] In some examples, the central control module is also configured to: determine the fourth pressure sampling period in response to the environmental characteristic value of the location of the wearable device reaching a critical value, and determine the environmental characteristic value corresponding to the location of the wearable device based on the fourth environmental pressure value obtained in real time by the pressure sensor.

[0039] The pressure sensor is also configured to continuously acquire the fourth ambient pressure value at the location of the wearable device based on the fourth pressure sampling period; wherein the duration of the fourth pressure sampling period is shorter than the duration of the second pressure sampling period, and the environmental characteristic value corresponding to the threshold value is greater than the environmental characteristic value corresponding to the trigger value.

[0040] In this embodiment, taking the wearer's current environment as an underwater environment as an example, the target modes include underwater activity modes such as swimming, snorkeling, and diving. The environmental characteristic value is water depth, and the critical value corresponds to a relatively safe but risky water depth. The duration of the fourth pressure sampling cycle is shorter than the duration of the second pressure sampling cycle; the water depth corresponding to the critical value is less than the water depth corresponding to the warning value, but greater than the water depth corresponding to the trigger value. The critical value is a relatively safe but risky water depth. By shortening the sampling cycle of the environmental pressure value, the protection effect for the wearer is improved with a smaller power consumption loss.

[0041] In some examples, the central control module is also configured to: determine the fifth pressure sampling period in response to the environmental characteristic value of the wearable device's location reaching the warning value, and determine the environmental characteristic value corresponding to the wearable device's location based on the fifth environmental pressure value obtained in real time by the pressure sensor.

[0042] The pressure sensor is also configured to continuously acquire the fifth ambient pressure value at the location of the wearable device based on the fifth pressure sampling cycle; wherein the duration of the fifth pressure sampling cycle is shorter than the duration of the fourth pressure sampling cycle, and the environmental characteristic value corresponding to the warning value is greater than the environmental characteristic value corresponding to the critical value.

[0043] In this embodiment, the underwater environment is taken as the current environment of the wearer. The target mode includes underwater activity modes such as swimming mode, snorkeling mode, and diving mode. The environmental characteristic value is water depth, and the warning value corresponds to the water depth where there is a risk of drowning. The duration of the fifth pressure sampling cycle is shorter than that of the fourth pressure sampling cycle. When the water depth at the location of the wearable device reaches the warning value, the sampling cycle of the environmental pressure value is shortened, and the water depth at the location of the wearable device is continuously detected.

[0044] Furthermore, when the water depth corresponding to the location of the wearable device is less than the warning value, and the device returns to the critical value or a shallower location, the central control module can stop the status sensor from collecting the wearer's status data in the water, thereby reducing the power consumption of the wearable device. When multiple warning values ​​are set, the sampling period for the status sensor to collect the wearer's status data in the water is shortened when moving from a warning value corresponding to a deeper location to a warning value corresponding to a relatively shallower location, thus rationally allocating the power consumption of the wearable device.

[0045] It should be noted that the first, second, third, fourth, and fifth environmental pressure values ​​correspond to the first, second, third, fourth, and fifth pressure sampling periods, respectively, and do not represent different actual environments. They may be environmental pressure values ​​in the same environment or partially environmental pressure values ​​in different environments.

[0046] In some examples, the temperature sensor can be set up separately or integrated into the pressure sensor; the temperature sensor is used to collect temperature data and compensate for pressure data drift caused by temperature changes in the pressure sensor, ensuring the accuracy of water depth measurement based on pressure data.

[0047] In some examples, the wearable device also includes a positioning module; the central control module is further configured to: when the target mode is activated, continuously read the location data of the positioning module at a preset positioning cycle, determine whether the wearer's current water area is a sea area based on the location data, and determine the water density of the wearer's current water area; wherein, the water density includes freshwater density and seawater density. The target mode includes swimming mode, diving mode, and other modes corresponding to underwater activities. After the target mode is activated, the central control module continuously reads the location data of the positioning module at a preset positioning cycle. Based on the location data, it determines whether the wearer is located in a sea area. If the wearer's current water area is a sea area, the water density is seawater density, approximately 1025 kg / m³; if the wearer's current water area is not a sea area, the water density is freshwater density, approximately 1000 kg / m³. The central control module can use the latitude and longitude in the location data and a preset sea area latitude and longitude range to determine whether the wearer is located in a sea area, or it can determine this through other means such as networking. The target mode can be manually activated by the wearer or automatically activated by the wearable device after the wearer enters the water. The location data from the positioning module is typically obtained when the wearable device is on or above the water surface. Therefore, if the location data cannot be determined temporarily, the water density is assumed to be seawater density. When the wearable device is on or above the water surface, the location data from the positioning module can be sent to a remote server.

[0048] Furthermore, the formula for calculating the water depth at the location of the wearable device based on the environmental pressure value is specifically expressed as follows: ; in, Indicates water depth. This indicates the ambient pressure value detected by the pressure sensor. This represents the basic atmospheric pressure value above the water surface. Represents gravitational acceleration. This represents water density, which includes seawater density and freshwater density. When it is uncertain whether the location is in the sea, seawater density can be used by default to calculate water depth.

[0049] In some examples, the central control module can read the wearer's body shape data; this data includes at least height, and may also include weight and arm length. Taking an underwater environment as an example, the module determines threshold values ​​and multiple warning values ​​for different water depths based on the wearer's body shape data. These threshold and warning values ​​are determined by the wearer's body shape data, and multiple warning values ​​can be determined from shallow to deep water. Each warning value corresponds to a state sampling period; the deeper the water, the shorter the state sampling period. The aforementioned height, weight, and arm length data are actively entered by the wearer and can be used by the wearable device to set trigger values, threshold values, and warning values ​​based on this data to achieve drowning rescue. The wearer's personal data can be de-identified to ensure that the wearer's privacy is not leaked.

[0050] In some examples, the central control module is also configured to: determine the preparation time and disengagement time of the disengagement device, and upload the preparation time and disengagement time of the disengagement device to the server; send a feedback signal to the server each time the wearable device surfaces; wherein, the preparation time and disengagement time of the disengagement device are used by the server to calculate the timeout alarm time; after receiving the previous feedback signal sent by the wearable device, if the server does not receive the next feedback signal sent by the wearable device within the timeout alarm time range, it sends an alarm message to the target object.

[0051] In this embodiment, the disengagement device is an inflatable life-saving device, the preparation time of the disengagement device is the inflation time of the inflatable life-saving device, and the disengagement time is the ascent time, as an example. After the inflatable life-saving device is connected to the wearable device, the wearable device obtains the total inflation volume of the inflatable life-saving device and determines the inflation time of the inflatable life-saving device. With the wearer's weight data obtained, the ascent time corresponding to the wearer's weight is determined by using a mapping table representing the reference weight and the ascent time from a preset water depth position. If the wearer's weight information is not obtained, the ascent time is determined by the ascent time from the preset water depth position corresponding to the average weight or maximum weight in the mapping table. The preset water depth position can be the water depth corresponding to a warning value or can be set separately. The mapping table and the inflation time of the inflatable life-saving device are determined by the wearable device through pre-stored information or model of the inflatable life-saving device, manual input, etc. After determining the inflation time and ascent time of the inflatable lifesaving device, these are stored in the wearable device and sent to a remote server when the wearable device is on or above the water surface. The server calculates the timeout alarm based on the determined inflation time, ascent time, and preset submersion and redundancy times. The mapping table can include the ascent time for different models of inflatable lifesaving devices corresponding to different reference weights from a preset water depth; for example, the same reference weight corresponds to the ascent time for inflatable lifesaving devices with airbag buoyancy of 50KG and 100KG from a preset water depth. The step size between reference weights in the mapping table can be the same. The wearer's actual weight is determined, and the ascent time is determined based on the reference weight in the table that is closest to and greater than the wearer's actual weight. The wearable device may include sensors to detect whether it is in the water. When the wearable device is detected to be above the water surface, it sends a feedback signal to the server. The feedback signal may include location data determined by a positioning module. After receiving the previous feedback signal from the wearable device, if the server does not receive the next feedback signal from the wearable device within the timeout alarm period, it sends an alarm message to the target object, which may include rescue centers, security administrators, etc. The time interval between two adjacent feedback signals is the actual time the wearer spends underwater. The server can calculate the average of multiple time intervals between adjacent feedback signals and update the reserved dive time. The timeout alarm period is usually no more than 1.5 minutes.

[0052] In this embodiment of the disclosure, the wearable device can send location data, preparation time for disengagement, disengagement time, wearer's body size data, feedback signals, etc. to a remote server via a user identification module card network encryption method.

[0053] Example 1: Using a smartwatch as an example, snorkeling mode as the target mode, an inflatable life-saving device as the escape device, an inflatable life-saving device as the preparation time for the escape device, and an escape time as the ascent time, this explanation will be followed.

[0054] The smartwatch includes a pressure sensor, a nine-axis motion sensor, a heart rate sensor, a temperature sensor, and a positioning module. Inside the pressure sensor is an extremely thin silicon diaphragm. When water pressure acts on this diaphragm, it undergoes a slight bending deformation. This deformation induces a piezoresistive effect, changing the resistance of the resistor integrated on the diaphragm. The circuitry within the pressure sensor converts this resistance change into a voltage signal, which, after analog-to-digital conversion, outputs a precise ambient pressure value. This ambient pressure value can be used to calculate the actual water depth. The pressure sensor's measurement range is from 30 kPa to 600 kPa, corresponding to a water depth of approximately 0 to 50 meters; the error range is ±0.1% to ±0.3% of full scale, corresponding to a water depth of approximately 2 to 3 centimeters; the pressure sensor's power consumption per measurement is less than 5 µA, and its standby power consumption is less than 200 nA. The nine-axis motion sensor integrates a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer to achieve underwater three-dimensional attitude calculation, orientation, and motion trajectory recording. The accelerometer's range is ±2g to ±16g, and the gyroscope's range is ±250° / s to ±2000° / s. The built-in electronic compass provides stable orientation underwater for recording motion trajectories. The heart rate sensor uses photoplethysmography (PPG) to monitor heart rate changes by illuminating the skin with a green or red LED. It can also integrate blood oxygen monitoring, allowing for the assessment of body stress and fatigue based on monitored heart rate changes. The temperature sensor is integrated into the pressure sensor or independently located on the smartwatch's motherboard to collect temperature data and compensate for pressure data drift caused by temperature changes, ensuring the accuracy of water depth measurements based on pressure data. The positioning module is only effective at and above the water surface. It is used to determine the wearer's entry and exit coordinates, provide navigation, and can also be used to record dive logs and mark dive sites. The positioning module supports multi-mode positioning, including the Global Positioning System, GLONASS, BeiDou, and Galileo.

[0055] The smartwatch has a waterproof power port for connecting the inflatable lifesaving device. The smartwatch does not require continuous power to the inflatable lifesaving device; upon detecting that the wearer is drowning, the smartwatch sends an electrical signal to the device. Stimulated by this signal, the device releases pre-stored high-pressure gas or medication, triggering a chemical reaction to inflate the airbag. The airbag can be located at the wrist on the arm worn with the smartwatch, or at other locations depending on the situation. Before engaging in underwater activities, the wearer connects the inflatable lifesaving device to the smartwatch via a cable and secures it in the designated position. Specific securing methods include straps, Velcro, clips, and magnetic attachments; no specific method is specified here. After successful connection, the indicator light on the inflatable lifesaving device will turn green. If the indicator light is not green, the connection should be checked, and the device reconnected to the smartwatch.

[0056] After the inflatable lifesaving device is connected to the smartwatch, the smartwatch obtains the total inflation volume of the inflatable lifesaving device and determines the inflation time. It also obtains the wearer's weight data and, through a mapping table representing the reference weight and the time it takes to surface from a preset water depth, determines the surfacing time corresponding to the wearer's weight. If the wearer's weight information is not available, the surfacing time at the preset water depth corresponding to the average or maximum weight in the mapping table is used as the surfacing time. The mapping table can include the surfacing time at a preset water depth for different models of inflatable lifesaving devices corresponding to different reference weights; for example, the same reference weight corresponds to surfacing times at preset water depths of 50KG and 100KG buoyancy in the inflatable lifesaving device. The step size between the reference weights in the mapping table can be the same. The wearer's actual weight is determined, and the surfacing time is determined based on the reference weight in the table that is closest to and greater than the wearer's actual weight.

[0057] After determining the inflation and ascent times of the inflatable rescue device, these times are stored in a smartwatch and sent to a remote server when the smartwatch is on or above the water surface. The inflation and ascent times are used by the server to calculate the timeout alarm. The server calculates the timeout alarm based on the determined inflation and ascent times, along with pre-set submersion and redundancy times. The wearable device may include sensors to detect its underwater position. When the wearable device surfaces, it sends a feedback signal to the server, which may include location data determined by a positioning module. If the server does not receive a next feedback signal from the wearable device within the timeout alarm period after receiving the previous feedback signal, the server sends an alarm message to the target group, including rescue centers and safety administrators. The time interval between receiving two adjacent feedback signals is the actual time the wearer dives into the water. The server can calculate the average of multiple time intervals between receiving two adjacent feedback signals and update the reserved dive time. The timeout alarm time is usually no more than 1.5 minutes.

[0058] The wearer can activate the snorkeling mode via the smartwatch's touchscreen. Once activated, the central control module reads the location data from the positioning module every minute to determine the water density of the wearer's current location. Based on the location data, it determines whether the wearer is in the sea. If the wearer is in the sea, the water density is seawater density, approximately 1025 kg / m³; if the wearer is not in the sea, the water density is freshwater density, approximately 1000 kg / m³. Before entering the water, the wearer can send the location data to a remote server.

[0059] If the wearer does not activate snorkeling mode via the smartwatch's touchscreen, the first pressure sampling period is set to 3 minutes. The central control module controls the pressure sensor to continuously determine the first ambient pressure value at the smartwatch's location every 3 minutes. Based on this real-time first ambient pressure value, the central control module determines the corresponding water depth at the smartwatch's location. The trigger value can be set to 30-50 cm, the wearer's arm length, or half the wearer's height. When the water depth at the smartwatch's location reaches the trigger value, snorkeling mode is automatically activated. At this time, the central control module changes the ambient pressure sampling period from the first to a second pressure sampling period. The second pressure sampling period is set to 45 seconds. The central control module controls the pressure sensor to continuously determine the second ambient pressure value at the smartwatch's location every 45 seconds. Based on this real-time second ambient pressure value, the central control module determines the corresponding water depth at the smartwatch's location.

[0060] The system can determine critical values ​​and multiple warning values ​​for different water depths based on the wearer's height and / or arm length data. The critical value can be twice the wearer's arm length or height, and three warning value levels can be set: the first warning value is three times the arm length or 1.5 times the height, the second warning value is four times the arm length or twice the height, and the third warning value is five times the arm length or 2.5 times the height.

[0061] If the wearer activates snorkeling mode via the smartwatch's touchscreen, the third pressure sampling period is set to 1.5 minutes. The central control module controls the pressure sensor to continuously determine the third ambient pressure value at the smartwatch's location every 1.5 minutes. Based on the real-time acquired third ambient pressure value, the central control module determines the corresponding water depth at the smartwatch's location. In response to the water depth at the smartwatch's location reaching a trigger value, the central control module changes the ambient pressure sampling period from the third pressure sampling period to the second pressure sampling period. The central control module then controls the pressure sensor to continuously determine the second ambient pressure value at the smartwatch's location every 45 seconds. Based on the real-time acquired second ambient pressure value, the central control module determines the corresponding water depth at the smartwatch's location.

[0062] In response to the water depth at the location of the smartwatch reaching a critical value, that is, when the water depth at the location of the smartwatch reaches twice the wearer's arm length or height, the fourth pressure sampling cycle is 28 seconds. The central control module controls the pressure sensor to continuously determine the fourth environmental pressure value at the location of the smartwatch every 28 seconds. The central control module determines the water depth corresponding to the location of the smartwatch based on the real-time fourth environmental pressure value.

[0063] In response to the water depth at the smartwatch's location reaching the first warning threshold—that is, when the water depth reaches three times the wearer's arm length or 1.5 times their height—the fifth pressure sampling cycle is 10 seconds. The central control module controls the pressure sensor to continuously determine the fifth ambient pressure value at the smartwatch's location every 10 seconds. Based on the real-time acquired fifth ambient pressure value, the central control module determines the corresponding water depth at the smartwatch's location. Simultaneously, based on the first warning threshold, the central control module determines the motion sampling cycle and heart rate sampling cycle to be 5 seconds each. Every 5 seconds, it continuously collects the wearer's three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data in the water through a nine-axis motion sensor, and continuously collects the wearer's real-time heart rate data through a heart rate sensor.

[0064] In response to the water depth at the smartwatch's location reaching the second warning threshold—that is, when the water depth reaches four times the wearer's arm length or twice their height—the fifth pressure sampling cycle is 5 seconds. The central control module controls the pressure sensor to continuously determine the fifth environmental pressure value at the smartwatch's location every 5 seconds. Based on the real-time acquired fifth environmental pressure value, the central control module determines the corresponding water depth at the smartwatch's location. Simultaneously, based on the second warning threshold, the central control module determines the motion sampling cycle and heart rate sampling cycle to be 3 seconds each. Every 3 seconds, it continuously collects the wearer's three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data in the water through a nine-axis motion sensor, and continuously collects the wearer's real-time heart rate data through a heart rate sensor.

[0065] In response to the water depth at the smartwatch's location reaching the third warning value (i.e., the water depth is five times the wearer's arm length or 2.5 times their height), the fifth pressure sampling cycle is 1 second. The central control module controls the pressure sensor to continuously determine the fifth environmental pressure value at the smartwatch's location every second. Based on the real-time acquired fifth environmental pressure value, the central control module determines the corresponding water depth at the smartwatch's location. Simultaneously, based on the third warning value, the central control module determines the motion sampling cycle and heart rate sampling cycle to be 2 seconds. Every 2 seconds, it continuously collects the wearer's three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data in the water through a nine-axis motion sensor, and continuously collects the wearer's real-time heart rate data through a heart rate sensor.

[0066] The central control module determines the wearer's posture and horizontal displacement in the water based on continuously collected three-dimensional acceleration, angular velocity, and magnetic field data. It also determines the wearer's real-time heart rate changes in the water based on continuously collected real-time heart rate data. If the wearer's posture in the water is abnormal and there is no horizontal displacement, or if the wearer's real-time heart rate in the water drops beyond a preset safety threshold within a preset time range, the preset drowning judgment conditions are met, the wearer is determined to be drowning, and the inflatable life-saving device is triggered. At this time, the smartwatch provides an electrical signal to the inflatable life-saving device. Stimulated by the electrical signal, the inflatable life-saving device releases pre-stored high-pressure gas or a chemical reaction to generate gas, inflating the airbag and causing the wearer to float to the surface.

[0067] When the water depth corresponding to the location of the smartwatch is less than any warning value, the central control module stops the nine-axis motion sensor and heart rate sensor from collecting data on the wearer's status in the water. To reduce the power consumption of the smartwatch, when the water depth at the location of the smartwatch only reaches the trigger value or the critical value, it is not necessary for the nine-axis motion sensor and heart rate sensor to collect three-dimensional acceleration data, three-dimensional angular velocity data, three-dimensional magnetic field data, and real-time heart rate data.

[0068] Secondly, Figure 2A flowchart illustrating a method for disposing of a wearable device according to an embodiment of this disclosure is provided, as follows: Figure 2 As shown, based on the same inventive concept, this disclosure also provides a method for processing a wearable device, applied to a wearable device including at least a central control module, a pressure sensor, and at least one status sensor. The processing method includes: S1: The pressure sensor continuously acquires the ambient pressure value at the location of the wearable device based on the pressure sampling period; S2: The central control module determines the status sampling period based on the real-time environmental pressure value obtained by the pressure sensor and preset conditions; S3: The status sensor continuously collects the wearer's status data in the environment at the status sampling period; S4: The central control module determines the wearer's status information in the environment based on the status data continuously collected by the status sensor. When the status information meets the preset disengagement conditions, the disengagement device is triggered.

[0069] Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A wearable device with a triggerable disengagement device, characterized in that, The wearable device includes at least a central control module, a pressure sensor, and at least one status sensor; The pressure sensor is configured to continuously acquire the ambient pressure value at the location of the wearable device based on the pressure sampling period; The state sensor is configured to continuously collect the wearer's state data in the environment at a state sampling period; The central control module is configured to: determine the state sampling period based on the environmental pressure value obtained in real time by the pressure sensor and preset conditions; determine the wearer's state information in the environment based on the state data continuously collected by the state sensor; and trigger the disengagement device when the state information meets the preset disengagement conditions.

2. The device according to claim 1, characterized in that, The status sensor includes a nine-axis motion sensor and a heart rate sensor, and the status sampling period includes a motion sampling period and a heart rate sampling period; The central control module is also configured to: determine the environmental characteristic value corresponding to the location of the wearable device based on the environmental pressure value acquired in real time by the pressure sensor; and determine the motion sampling period and heart rate sampling period based on the warning value when the environmental characteristic value of the location of the wearable device reaches a warning value. The nine-axis motion sensor is configured to continuously collect the wearer's three-dimensional acceleration data, three-dimensional angular velocity data, and three-dimensional magnetic field data in the environment at the motion sampling cycle. The heart rate sensor is configured to continuously collect the wearer's real-time heart rate data at the heart rate sampling cycle.

3. The device according to claim 2, characterized in that, The central control module is also configured to: determine the wearer's motion posture and horizontal displacement in the environment based on the three-dimensional acceleration data, three-dimensional angular velocity data and three-dimensional magnetic field data collected in real time by the nine-axis motion sensor; and determine the wearer's real-time heart rate changes in the environment based on the real-time heart rate data collected in real time by the heart rate sensor. The disengagement device is triggered when the wearer's movement posture and horizontal displacement in the environment, and the real-time heart rate changes, meet at least one or more of the preset disengagement conditions; wherein... The preset disengagement conditions include: the wearer's movement posture is abnormal in the environment and there is no horizontal displacement; the wearer's real-time heart rate in the environment drops beyond a preset safety threshold within a preset time range.

4. The device according to claim 1, characterized in that, The central control module is also configured to: when the target mode is not enabled, determine a first pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the first environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching the trigger value, enable the target mode, determine a second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor. The pressure sensor is further configured to: continuously acquire the first ambient pressure value at the location of the wearable device based on the first pressure sampling period; and continuously acquire the second ambient pressure value at the location of the wearable device based on the second pressure sampling period; wherein, The duration of the second pressure sampling period is shorter than the duration of the first pressure sampling period.

5. The device according to claim 1, characterized in that, The central control module is also configured to: when the target mode is enabled, determine a third pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the third environmental pressure value obtained in real time by the pressure sensor; in response to the environmental characteristic value of the location of the wearable device reaching a trigger value, determine a second pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the second environmental pressure value obtained in real time by the pressure sensor. The pressure sensor is further configured to: continuously acquire the third ambient pressure value at the location of the wearable device based on the third pressure sampling period; and continuously acquire the second ambient pressure value at the location of the wearable device based on the second pressure sampling period; wherein, The duration of the second pressure sampling period is less than the duration of the third pressure sampling period, and the duration of the third pressure sampling period is less than the duration of the first pressure sampling period.

6. The device according to claim 4 or 5, characterized in that, The central control module is also configured to: in response to the environmental characteristic value of the location of the wearable device reaching a critical value, determine a fourth pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the fourth environmental pressure value obtained in real time by the pressure sensor; The pressure sensor is further configured to: continuously acquire the fourth environmental pressure value at the location of the wearable device based on the fourth pressure sampling period; wherein the duration of the fourth pressure sampling period is less than the duration of the second pressure sampling period, and the environmental feature value corresponding to the threshold value is greater than the environmental feature value corresponding to the trigger value.

7. The device according to claim 4 or 5, characterized in that, The central control module is also configured to: in response to the environmental characteristic value of the location of the wearable device reaching the warning value, determine the fifth pressure sampling period, and determine the environmental characteristic value corresponding to the location of the wearable device based on the fifth environmental pressure value obtained in real time by the pressure sensor; The pressure sensor is further configured to: continuously acquire the fifth environmental pressure value at the location of the wearable device based on the fifth pressure sampling period; wherein the duration of the fifth pressure sampling period is less than the duration of the fourth pressure sampling period, and the environmental characteristic value corresponding to the warning value is greater than the environmental characteristic value corresponding to the threshold value.

8. The device according to claim 5, characterized in that, The wearable device also includes a positioning module; the central control module is further configured to: when the target mode is activated, continuously read the location data of the positioning module at a preset positioning cycle, determine whether the water area where the wearer is located is a sea area based on the location data, and determine the water density of the water area where the wearer is currently located; wherein, the water density includes freshwater density and seawater density.

9. The device according to claim 1, characterized in that, The central control module is also configured to: determine the preparation time and detachment time of the detachment device, and upload the preparation time and detachment time of the detachment device to the server; and send a feedback signal to the server each time the wearable device surfaces. The preparation time and disengagement time of the disengagement device are used by the server to calculate the timeout alarm time; after receiving the previous feedback signal sent by the wearable device, if the server does not receive the next feedback signal sent by the wearable device within the timeout alarm time range, it sends alarm information to the target object.

10. A method for disposing of a wearable device, characterized in that, The processing method, applied to a wearable device comprising at least a central control module, a pressure sensor, and at least one status sensor, includes: The pressure sensor continuously acquires the ambient pressure value at the location of the wearable device based on the pressure sampling period; The central control module determines the state sampling period based on the environmental pressure value obtained in real time by the pressure sensor and preset conditions; The status sensor continuously collects the wearer's status data in the environment at the status sampling period; The central control module determines the wearer's status information in the environment based on the status data continuously collected by the status sensor. When the status information meets the preset detachment conditions, the detachment device is triggered.

Images