Human body state detection method, hearing aid and warning system

Abstract

The invention discloses a human body state detection method, a hearing aid and a warning system, and relates to the technical field of hearing aids. The hearing aid comprises a motion detection device and a prompt device, and the method comprises the following steps: determining a motion state of a user body based on a motion detection signal output by the motion detection device; under the condition that it is confirmed that the motion state is in a falling state, the prompting device outputs a prompting signal; and when the output duration of the prompt signal reaches a first preset duration and the prompt device does not receive the stop signal, determining that the user is in a dangerous state and notifying an emergency contact. The invention aims to improve the safety of the elderly wearing the hearing aid.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing aids, and in particular to a human body state detection method, a hearing aid and a warning system. Background Art

[0002] With the continuous progress of social economy, people have paid more attention to the quality of life of the elderly. It is quite common for the elderly to suffer from hearing loss due to the gradual decline of physical functions. Therefore, many elderly people choose to use hearing aids to improve their hearing. Studies have found that compared with elderly people with normal hearing, the risk of falling in life is 3 to 4 times higher for elderly people with hearing loss. This is because the ear is not only an organ of hearing, but also responsible for the body's sense of balance, which plays a key role in preventing the elderly from falling. However, since most elderly people's children cannot accompany them all day, once the elderly fall and fail to get help in time, it may cause a series of serious health problems and even threaten their life safety.

[0003] Traditionally, hearing aids with fall detection functions mainly determine whether a fall has occurred by monitoring changes in the vital signs of the elderly. However, it usually takes a certain amount of time from the occurrence of a fall to the obvious changes in vital signs, which leads to delayed sending of alarm signals and often misses the most ideal time for rescue. Summary of the invention

[0004] The main purpose of the present invention is to provide a human body state detection method, a hearing aid and a warning system, and the present invention aims to improve the safety of users wearing hearing aids.

[0005] To achieve the above object, the present invention proposes a human body state detection method, which is applied to a hearing aid. The hearing aid includes a motion detection device and a prompt device. The method includes: Based on the motion detection signal output by the motion detection device, confirm the motion state of the user's body; Under the condition that the motion state is confirmed to be a falling state, the prompt device will output a prompt signal; When the output duration of the prompt signal reaches a first preset duration and the prompt device fails to receive a stop signal, it is determined that the user is in a dangerous state and an emergency contact is notified.

[0006] In one embodiment, the motion detection device includes an angular accelerometer and a linear accelerometer, and the specific steps of confirming the motion state of the user's body based on the motion detection signal output by the motion detection device are: Acquire an angular acceleration detection signal output by the angular accelerometer and a linear acceleration detection signal output by the linear accelerometer; The movement state of the user's body is confirmed according to the angular acceleration detection signal and the linear acceleration detection signal.

[0007] In one embodiment, the step of confirming the movement state of the user's body according to the angular acceleration detection signal and the linear acceleration detection signal is specifically: According to the multiple groups of the angular acceleration detection signals and the linear acceleration detection signals, the user's motion information is confirmed through the DCM matrix representation method and the Kalman filter algorithm.

[0008] In one embodiment, the hearing aid further includes a voice receiving device, and before the prompt device outputs a prompt signal, the method further includes: The voice receiving device does not receive a voice signal within a second preset time period.

[0009] In one embodiment, the hearing aid further includes a control device and a key trigger device, the control device is electrically connected to the prompt device, the voice receiving device, and the key trigger device, respectively, and when the output duration of the prompt signal reaches a first preset duration and before the prompt device fails to receive a stop signal, the method includes: Acquire a voice detection signal output by the voice receiving device or a key trigger signal output by the key trigger device, so that the control device can confirm the user's physical state; Under the condition that it is confirmed that the user's physical condition is in good condition, the control device controls the prompt device to stop outputting the prompt signal.

[0010] In one embodiment, before the step of enabling the control device to confirm the user's physical state, the method further includes: Based on the motion detection signal output by the motion detection device, confirm the motion state of the user's body; Under the condition of confirming that the motion state is in a standing state, the control device controls the prompt device to stop outputting the prompt signal.

[0011] In one embodiment, the hearing aid further comprises a Bluetooth communication device, and the Bluetooth communication device is electrically connected to the control device. The specific steps of confirming that the user is in a dangerous state and notifying an emergency contact include: Under the condition that the control device confirms that the user is in a dangerous state, the control device outputs a danger signal to the mobile terminal via the Bluetooth communication device; Based on the danger signal, the mobile terminal will output a positioning signal and a warning signal to the cloud, so that the cloud notifies the emergency contact; When it is confirmed that there is a fault in the network communication, the mobile terminal will switch to telephone dial-up communication and notify the emergency contact through telephone dial-up communication.

[0012] In one embodiment, the hearing aid further comprises a photosensitive detection device, and before the step of confirming the movement state of the user's body, the method further comprises: Based on the photosensitive detection signal output by the photosensitive detection device, it is determined whether the user's heart rate change is in an abnormal state.

[0013] The present invention also provides a hearing aid, comprising: A control device, the control device being used to store and execute any one of the above human body state detection methods; A motion detection device, the motion detection device is electrically connected to the control device, and the motion detection device is used to output a motion detection signal; A prompting device, the prompting device is electrically connected to the control device, and the prompting device is used to output a prompting signal; A voice receiving device, the voice receiving device is electrically connected to the control device, and the voice receiving device is used to receive a voice signal; A key trigger device, the key trigger device is electrically connected to the control device, and the key trigger device is used to output a key trigger signal; A Bluetooth communication device, the Bluetooth communication device is electrically connected to the control device, and the Bluetooth communication device is used for the control device to communicate with the mobile terminal; A photosensitive detection device is electrically connected to the control device, and is used to output a photosensitive detection signal.

[0014] The present invention further provides a warning system, which includes a mobile terminal, a cloud and the hearing aid as described above.

[0015] The technical solution of the present invention is to set a motion detection device in a hearing aid, and confirm the motion state of the user's body through the motion detection signal output by the motion detection device. It can be understood that the motion detection device is set in the hearing aid, and the hearing aid is worn on the user's ear. Therefore, under normal movement of the user, the head will not have a large and violent movement, which improves the accuracy of the motion detection device in detecting whether the user is in a falling state. Further, when it is confirmed that the motion state of the user's body is in a falling state, the prompt device will output a prompt signal. Among them, the prompt signal can be a voice signal or a vibration signal. The prompt signal can stop output by receiving a stop signal triggered by the user, thereby confirming that the user's current state is in a good state, and there is no need to notify the emergency contact. When the output duration of the prompt signal reaches the first preset duration, the prompt device fails to receive the stop signal, then confirms that the user is in a dangerous state, thereby notifying the emergency contact, so that the user's current state is quickly known to people, thereby improving the safety of users wearing hearing aids. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 Schematic diagram of the process of the human body state detection method of the present invention; Figure 2 A schematic diagram of a flow chart of an embodiment of a human body state detection method of the present invention; Figure 3 A schematic diagram of a flow chart of another embodiment of a human body state detection method of the present invention; Figure 4 A schematic diagram of a flow chart of another embodiment of a human body state detection method of the present invention; Figure 5 is a structural schematic diagram of a hearing aid of the present invention; Figure 6 It is a structural schematic diagram of the warning system of the present invention.

[0018] Description of Figure Numbers: 10. Control device; 20. Motion detection device; 30. Prompt device; 40. Voice receiving device; 50. Key trigger device; 60. Bluetooth communication device; 70. Photosensitive detection device.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] With the continuous progress of social economy, people have paid more attention to the quality of life of the elderly. It is quite common for the elderly to suffer from hearing loss due to the gradual decline of physical functions. Therefore, many elderly people choose to use hearing aids to improve their hearing. Studies have found that compared with elderly people with normal hearing, the risk of falling in life is 3 to 4 times higher for elderly people with hearing loss. This is because the ear is not only an organ of hearing, but also responsible for the body's sense of balance, which plays a key role in preventing the elderly from falling. However, since most elderly people's children cannot accompany them all day, once the elderly fall and fail to get help in time, it may cause a series of serious health problems and even threaten their life safety.

[0024] Traditionally, hearing aids with fall detection functions mainly determine whether a fall has occurred by monitoring changes in the vital signs of the elderly. However, it usually takes a certain amount of time from the occurrence of a fall to the obvious changes in vital signs, which leads to delayed sending of alarm signals and often misses the most ideal time for rescue.

[0025] Therefore, reference Figure 1 The present invention proposes a human body state detection method, which is applied to a hearing aid. The hearing aid includes a motion detection device and a prompt device. The method includes: Step S100: confirming the motion state of the user's body based on the motion detection signal output by the motion detection device; Step S200: When it is confirmed that the motion state is in a falling state, the prompt device outputs a prompt signal; Step S300: When the output duration of the prompt signal reaches a first preset duration and the prompt device fails to receive a stop signal, it is determined that the user is in a dangerous state and an emergency contact is notified.

[0026] In this embodiment, the motion detection device can use an angular accelerometer and a linear accelerometer to detect the user's body motion state. The motion detection device can obtain an angular acceleration detection signal and a linear acceleration detection signal through the angular accelerometer and the linear accelerometer, respectively, and obtain the body motion state of the user wearing the hearing aid provided with the motion detection device by analyzing and confirming the angular acceleration detection signal and the linear acceleration detection signal. In addition, the motion detection device can be implemented by other corresponding sensors, such as a vibration sensor. By obtaining relevant motion detection signals such as gravity signals, rotation vector signals, and vibration frequency signals, the body motion state of the user is confirmed.

[0027] refer to Figure 2 Specifically, the motion detection device includes an angular accelerometer and a linear accelerometer, and the specific steps of confirming the motion state of the user's body based on the motion detection signal output by the motion detection device are: Step S110: acquiring an angular acceleration detection signal output by the angular accelerometer and a linear acceleration detection signal output by the linear accelerometer; Step S120: confirming the movement state of the user's body according to the angular acceleration detection signal and the linear acceleration detection signal.

[0028] It should be understood that in order to accurately determine the state of motion of the user's body, it is necessary to confirm from the rapid changes in the user's body posture and sudden acceleration or deceleration. Therefore, in order to ensure that the acquired motion detection signal can accurately and effectively determine the current motion information of the user's body, it is necessary to detect the linear acceleration and angular acceleration of the user's body during motion through a motion sensor and output a linear acceleration detection signal and an angular acceleration detection signal as a basis for determining whether the user is in a falling state. Among them, after the control device in the hearing aid obtains the linear acceleration detection signal and the angular acceleration detection signal, it can be identified and confirmed by algorithms such as threshold detection, pattern recognition and machine learning models. In this embodiment, the step of confirming the state of motion of the user's body according to the angular acceleration detection signal and the linear acceleration detection signal is specifically: according to multiple groups of the angular acceleration detection signals and the linear acceleration detection signals, the user's motion information is confirmed through the DCM matrix representation and the Kalman filter algorithm. In order to obtain the user's motion information and make a three-dimensional judgment when the user wears the hearing aid, it is necessary to perform a three-dimensional detection of the user's head in the horizontal and vertical directions to output multiple sets of linear acceleration signals and angular acceleration signals. If it is necessary to achieve three-dimensional detection in the horizontal and vertical directions at every moment, at least three sets of linear acceleration detection signals and angular acceleration detection signals need to be output simultaneously to judge the user's motion detection in the horizontal and vertical directions. Therefore, it is necessary to judge the user's motion information by outputting two sets of linear acceleration signals and angular acceleration signals. In order to realize that the hearing aid can accurately judge the user's motion state after accurately obtaining the linear acceleration detection signals and angular acceleration detection signals generated by the user's body movement, it is necessary to use a corresponding method to calculate and judge the obtained detection signals. By using the DCM matrix representation and the Kalman filter algorithm to calculate the linear acceleration signals and angular acceleration signals, the user's body motion information can be judged. Among them, the DCM matrix representation, as the most direct way to describe posture transformation, has mature practical experience in the field of motion sensing and can better describe posture transformation. The Kalman filter algorithm is a recursive prediction filter algorithm that estimates the past, current, and future states of a signal, thereby improving the accuracy and stability of a motion detection device's judgment of whether a user is in a falling state, thereby reducing the probability of misjudgment.

[0029] In this embodiment, the prompt device can be implemented by a voice prompt device or a vibration prompt device. It is understandable that the motion detection device is electrically connected to the control device so that the control device obtains the motion detection signal output by the motion detection device. The control device determines the motion detection signal to confirm the user's motion state. Among them, the control device is also electrically connected to the prompt device, and after confirming that the user is in a falling state, it outputs a control signal to the prompt device so that the prompt device outputs a prompt signal. The prompt signal will prompt the user that it is currently in an early warning state. If the stop signal is not received within the first preset time, it will confirm that the user is in a dangerous state and notify the emergency contact. Among them, a Bluetooth communication device can be set in the hearing aid, so that the dangerous state information can be output to the user's mobile terminal by Bluetooth communication, so that the mobile terminal can upload the information to the cloud via WIFI, 4 / 5G. The emergency contact can obtain the dangerous state information through the cloud, and then quickly rescue the user. In addition, when the mobile terminal confirms through network detection that there is a fault in the network communication, it automatically switches to telephone dial-up communication to send a warning signal to the emergency contact, so as to notify the emergency contact in time by autonomously switching between multiple communication methods, so that the emergency contact can quickly and stably obtain the user's status information. Furthermore, the setting of the first preset time length can be set according to the experience value obtained by the R&D personnel in actual testing, for example, the first preset time length is set to 20 seconds. After the control device receives the motion detection signal and confirms that the user is in a falling state, the control device will control the prompt device to output a prompt signal. Among them, a clock circuit is provided in the prompt device. If the prompt device continues to output the prompt signal for 20 seconds and does not receive a stop signal, the danger prompt signal is fed back to the control device so that the control device performs the next action.

[0030] In this embodiment, the motion detection device is set in the hearing aid, and the motion detection signal output by the motion detection device is used to confirm the motion state of the user's body. It can be understood that the motion detection device is set in the hearing aid, and the hearing aid is worn on the user's ear. Therefore, under normal movement of the user, the head will not have a large and violent movement, which improves the accuracy of the motion detection device in detecting whether the user is in a falling state. Further, when it is confirmed that the motion state of the user's body is in a falling state, the prompt device will output a prompt signal. Among them, the prompt signal can be a voice signal or a vibration signal. The prompt signal can stop outputting by receiving a stop signal triggered by the user, thereby confirming that the user's current state is in a good state, and there is no need to notify the emergency contact. When the output duration of the prompt signal reaches the first preset duration, the prompt device fails to receive the stop signal, then confirms that the user is in a dangerous state, thereby notifying the emergency contact, so that the user's current state is quickly known to people, thereby improving the safety of users wearing hearing aids.

[0031] In one embodiment of the present invention, the hearing aid further includes a voice receiving device, and before the prompt device outputs a prompt signal, the method further includes: The voice receiving device does not receive a voice signal within a second preset time period.

[0032] It is understandable that when the elderly live alone, they may suddenly feel unwell or die while resting, which may lead to the situation that they cannot make a sound. Therefore, in this embodiment, a voice receiving device is also provided in the hearing aid. Among them, the voice receiving device can be implemented by a microphone or an acoustic sensor. The voice receiving device receives external voice signals, and then confirms whether the user is in a conversation state when he is in a static state or whether the surrounding environment is in a state of personnel flow, so as to confirm whether it is necessary to output a prompt signal to confirm the user's physical state. When the user is in a relatively quiet environment and the user himself does not make any action or sound, the voice receiving device will time through its built-in clock circuit until the cumulative time reaches the second preset time, and the voice signal is received, and then the corresponding signal is fed back to the control device, so that the control device controls the prompt device to output a prompt signal to confirm the user's current physical state. Among them, the second preset time can also be set according to the experience value obtained by the R&D personnel in the actual test, for example, the second preset time is set to five minutes. By setting the voice receiving device and the prompt device to cooperate with each other, the diversity of user state detection is further improved.

[0033] refer to Figure 3 , further, the hearing aid further includes a control device and a key trigger device, the control device is electrically connected to the prompt device, the voice receiving device, and the key trigger device respectively, and when the output duration of the prompt signal reaches a first preset duration, before the prompt device fails to receive a stop signal, the method includes: Step S310: acquiring a voice detection signal output by the voice receiving device or a key trigger signal output by the key trigger device, so that the control device can confirm the user's physical state; Step S320: After confirming that the user's physical condition is in good condition, the control device controls the prompt device to stop outputting the prompt signal.

[0034] It is understandable that the stop signal received by the prompt device needs to be performed by the user to enable the control device to output to the prompt device. The control device confirms whether the user's current state is in a good state through the user's own execution of the corresponding operation, thereby stopping the output of the prompt signal to avoid misjudgment of the dangerous state. In this embodiment, the control device can confirm that the user is currently in a good state through the key trigger signal, the corresponding voice signal, and the corresponding action signal output by the key trigger device, the voice receiving device, and the action detection device. For example, after the user falls, the physical damage caused by the fall is relatively low, and the user can handle it by himself, and there is no need to notify the emergency contact. Then, by pressing the key trigger device set on the surface of the hearing aid, the key trigger device outputs a key trigger signal to the control device. At this time, the control device will also control the prompt device to stop outputting the prompt signal. Among them, the user presses the key trigger device to complete the output of the prompt signal within the first preset time after the prompt signal required by the user is output. In addition, the user can also output a voice command so that the voice receiving device receives the voice signal, so that the control device recognizes and confirms and controls the prompt device to stop outputting the prompt signal.

[0035] Furthermore, before the step of enabling the control device to confirm the user's physical state, the method further includes: based on the motion detection signal output by the motion detection device, confirming the user's physical state; under the condition that the motion state is confirmed to be in a standing state, the control device controls the prompt device to stop outputting the prompt signal. The control device can also confirm the user's current motion state through the motion detection signal output by the motion detection device, thereby confirming whether the user can move autonomously after falling through the motion state, and then controlling the prompt device to stop outputting the prompt signal. Through various methods such as a key trigger device, a voice receiving device, and a motion detection device, the control device has multiple ways to confirm the user's physical state after falling, thereby avoiding misjudging the user in a dangerous state under the condition that the user has the ability to move autonomously.

[0036] refer to Figure 4 In one embodiment of the invention, the hearing aid further comprises a Bluetooth communication device, the Bluetooth communication device is electrically connected to the control device, and the specific steps of confirming that the user is in a dangerous state and notifying an emergency contact include: Step S330: When the control device confirms that the user is in a dangerous state, the control device outputs a danger signal to the mobile terminal via the Bluetooth communication device; Step S340: Based on the danger signal, the mobile terminal outputs a positioning signal and a warning signal to the cloud, so that the cloud notifies the emergency contact; Step S350: When it is confirmed that there is a network communication failure, the mobile terminal will switch to telephone dial-up communication and notify the emergency contact through telephone dial-up communication.

[0037] In this embodiment, a Bluetooth communication device is provided in the hearing aid. It is understandable that as a hearing aid device worn on the ear, the size and weight of the hearing aid should be miniaturized for easy wearing. Therefore, the hearing aid uses a Bluetooth communication device to achieve communication connection with the mobile terminal, and further outputs the information that the user is in a dangerous state to the cloud through WiFi or 4G / 5G on the mobile terminal, so as to realize communication between the hearing aid, the mobile terminal and the cloud. Further, under the condition that the prompt device fails to receive the stop signal within the first preset time, the danger signal will be fed back to the control device so that the control device confirms that the user is in a dangerous state. The control device outputs the information that the user is in a dangerous state to the mobile terminal carried by the user, such as a smart phone, a smart watch, etc. through the Bluetooth communication module. The mobile terminal sends the information that the user is in a dangerous state and the positioning information carried by itself to the cloud through WiFi or 4G / 5G network, so that the cloud confirms and notifies the emergency contact. Among them, the emergency contact can be set up in the cloud in advance, and multiple emergency contacts can be selected to contact.

[0038] Optionally, in actual applications, there are also situations where the mobile terminal has a network failure. Therefore, when the mobile terminal receives a danger signal output by the hearing aid via Bluetooth, it will first confirm whether there is a fault in the network communication method such as WiFi or 4G / 5G. When the mobile terminal confirms that there is a fault in the network communication method, it will automatically switch to telephone dial-up communication and send a warning signal to the emergency contact through telephone dial-up communication. Furthermore, the voice information in this communication method can still be set as a warning message plus positioning information. Among them, the warning information is a pre-set content, and the positioning information is achieved through GPS positioning in the mobile terminal. It should be understood that the mobile terminal needs to keep its own GPS function turned on at all times, so that the mobile terminal can also determine the location through satellite signals when there is a fault in the network communication, and send the location information to the emergency contact through telephone dial-up communication. In this way, the safety of the user is effectively improved.

[0039] In an embodiment of the present invention, the hearing aid further includes a photosensitive detection device, and before the step of confirming the movement state of the user's body, the method further includes: Based on the photosensitive detection signal output by the photosensitive detection device, it is determined whether the user's heart rate change is in an abnormal state.

[0040] In this embodiment, the photosensitive detection device is implemented by a green light-emitting diode and a photosensitive sensor. The photosensitive detection device is arranged at a suitable position of the hearing aid near the inside of the ear or behind the ear to ensure close contact with the skin, so as to more accurately measure the flow of blood. It can be understood that the photosensitive detection device is arranged in the hearing aid in order to detect the changes in the user's heart rate by measuring the changes in light absorption caused by blood flow. Further, this detection mainly relies on photoplethysmography. The light emitted by the green light-emitting diode penetrates the skin and irradiates the blood in the blood vessels. As the heart beats, the blood flow in the blood vessels changes periodically. When the heart contracts, the blood volume increases and the absorption of light increases; when the heart relaxes, the blood volume decreases and the absorption of light decreases. Part of the light is reflected back to the photosensitive sensor by the blood and other tissues, so that the detected light intensity changes with the change in blood flow to form a periodic signal. The light intensity change detected by the photosensitive sensor is converted into an electrical signal, and converted into a digital signal through an analog-to-digital converter, and further noise is removed through a filter to extract a useful pulse wave signal. By analyzing the periodic changes of the pulse wave signal, the heart rate is calculated to further confirm the user's physical condition. By setting a photosensitive detection device in the hearing aid, the accuracy of confirming the user's dangerous state is further improved.

[0041] refer to Figure 5 The present invention further provides a hearing aid, the hearing aid comprising: A control device 10, wherein the control device 10 is used to store and execute any one of the above-mentioned human body state detection methods; A motion detection device 20, the motion detection device 20 is electrically connected to the control device 10, and the motion detection device 20 is used to output a motion detection signal; A prompt device 30, the prompt device 30 is electrically connected to the control device 10, and the prompt device 30 is used to output a prompt signal; A voice receiving device 40, the voice receiving device 40 is electrically connected to the control device 10, and the voice receiving device 40 is used to receive a voice signal; A key trigger device 50, the key trigger device 50 is electrically connected to the control device 10, and the key trigger device 50 is used to output a key trigger signal; A Bluetooth communication device 60, the Bluetooth communication device 60 is electrically connected to the control device 10, and the Bluetooth communication device 60 is used for the control device 10 to communicate with the mobile terminal; A photosensitive detection device 70 , wherein the photosensitive detection device 70 is electrically connected to the control device 10 , and the photosensitive detection device 70 is used to output a photosensitive detection signal.

[0042] It is worth noting that since the hearing aid of the present invention is based on the above-mentioned human body state detection method, the embodiments of the hearing aid of the present invention include all technical solutions of all embodiments of the above-mentioned human body state detection method, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0043] In this embodiment, the control device 10 can be implemented by a main controller, such as a DSP (Digital Signal Process), an MCU (Microcontroller Unit), an FPGA (Field Programmable Gate Array), a SOC (System On Chip), etc.

[0044] In this embodiment, the motion detection device 20 can be implemented by an acceleration sensor and a gyroscope sensor. Among them, the motion detection device 20 detects the acceleration and tilt angle data that change when the user moves, and feeds back to the control device 10. The motion detection signal is calculated by the control device 10 to confirm the current motion state of the user's body. Further, the gyroscope sensor can be implemented by a six-axis gyroscope. The six-axis gyroscope can always obtain the linear acceleration vector of the linear acceleration of the human body in the three-dimensional coordinate system. When stationary, this vector should be equivalent to the direction of gravity. Thus, the direction of gravity in the coordinate system centered on the six-axis gyroscope can be obtained. At this time, the angle of rotation of the human body movement can be obtained by the angle between the gravity direction and the vertical coordinate axis. Since the six-axis gyroscope has angular acceleration data, the same rotation result can also be obtained by integrating the angular acceleration. By weighted calculation using linear acceleration and angular acceleration, the motion state of the user's body can be obtained.

[0045] In this embodiment, the prompt device 30 can be implemented by a voice prompt circuit or a vibration prompt circuit. The prompt device 30 outputs a prompt signal by receiving a corresponding control signal output by the control device 10, and performs timing through a clock circuit built into the prompt device 30. When the prompt signal is continuously output for a first preset time, if the prompt circuit still does not receive a stop signal, the corresponding signal is fed back to the control device 10, so that the control device 10 confirms that the user is currently in a dangerous state.

[0046] In this embodiment, the voice receiving device 40 can be implemented by a microphone or an acoustic sensor. The voice receiving device 40 receives an external voice signal and outputs a corresponding signal to the control device 10, so that the control device 10 confirms the current state of the user. By setting the second preset time length, the control device 10 confirms whether it is necessary to control the prompt device 30 to output a prompt signal.

[0047] In this embodiment, the button trigger device 50 can be implemented by using a trigger button. The user presses or touches the button to output a case trigger signal to the control device 10. By setting the button trigger device 50, the control device 10 can accurately confirm whether the user has the ability to make independent choices.

[0048] In this embodiment, the Bluetooth communication device 60 is electrically connected to the control device 10 and establishes a communication connection with the external terminal, thereby realizing data interaction between the hearing aid and the external terminal. When the control device 10 confirms that the user is in a dangerous state, the information is output to the external terminal through the Bluetooth communication device 60, so that the external terminal outputs a positioning signal and a warning signal to the cloud, and then notifies the emergency contact through the cloud. Alternatively, when the mobile terminal confirms that there is a fault in the network communication, the warning signal is sent to the emergency contact by switching to a telephone dial-up communication method.

[0049] In this embodiment, the photosensitive detection device 70 can be implemented by a green light emitting diode and a photosensitive sensor. Through the photosensitive detection signal output by the photosensitive sensor, the control device 10 can confirm the user's heart rate change, and further determine the user's physical condition.

[0050] refer to Figure 6 The present invention also proposes a warning system, characterized in that the warning system includes a mobile terminal, a cloud and the hearing aid as described above. It is worth noting that since the warning system of the present invention is based on the hearing aid described above, the embodiments of the warning system of the present invention include all technical solutions of all embodiments of the hearing aid described above, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0051] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A human body state detection method, applied to hearing aids, characterized in that: The hearing aid includes a motion detection device and a prompting device, and the method includes: Based on the motion detection signal output by the motion detection device, confirm the motion state of the user's body; Under the condition that the motion state is confirmed to be a falling state, the prompt device will output a prompt signal; When the output duration of the prompt signal reaches a first preset duration and the prompt device fails to receive a stop signal, it is determined that the user is in a dangerous state and an emergency contact is notified.

2. The method according to claim 1, characterized in that The motion detection device includes an angular accelerometer and a linear accelerometer. The specific steps of confirming the motion state of the user's body based on the motion detection signal output by the motion detection device are: Acquire an angular acceleration detection signal output by the angular accelerometer and a linear acceleration detection signal output by the linear accelerometer; The movement state of the user's body is confirmed according to the angular acceleration detection signal and the linear acceleration detection signal.

3. The method according to claim 2, characterized in that The step of confirming the movement state of the user's body according to the angular acceleration detection signal and the linear acceleration detection signal is specifically: According to the multiple groups of the angular acceleration detection signals and the linear acceleration detection signals, the user's motion information is confirmed through the DCM matrix representation method and the Kalman filter algorithm.

4. The method according to claim 1, characterized in that The hearing aid further includes a voice receiving device, and before the prompt device outputs a prompt signal, the method further includes: The voice receiving device does not receive a voice signal within a second preset time period.

5. The method according to claim 4, characterized in that The hearing aid further includes a control device and a key trigger device, wherein the control device is electrically connected to the prompt device, the voice receiving device, and the key trigger device, respectively. When the output duration of the prompt signal reaches a first preset duration and before the prompt device fails to receive a stop signal, the method includes: Acquire a voice detection signal output by the voice receiving device or a key trigger signal output by the key trigger device, so that the control device can confirm the user's physical state; Under the condition that it is confirmed that the user's physical condition is in good condition, the control device controls the prompt device to stop outputting the prompt signal.

6. The method according to claim 5, characterized in that Before the step of enabling the control device to confirm the user's physical state, the method further includes: Based on the motion detection signal output by the motion detection device, confirm the motion state of the user's body; Under the condition of confirming that the motion state is in a standing state, the control device controls the prompt device to stop outputting the prompt signal.

7. The method according to claim 5, characterized in that The hearing aid further includes a Bluetooth communication device, which is electrically connected to the control device. The specific steps of confirming that the user is in a dangerous state and notifying an emergency contact include: Under the condition that the control device confirms that the user is in a dangerous state, the control device outputs a danger signal to the mobile terminal via the Bluetooth communication device; Based on the danger signal, the mobile terminal will output a positioning signal and a warning signal to the cloud, so that the cloud notifies the emergency contact; When it is confirmed that there is a fault in the network communication, the mobile terminal will switch to telephone dial-up communication and notify the emergency contact through telephone dial-up communication.

8. The method according to claim 1, characterized in that The hearing aid further includes a photosensitive detection device. Before the step of confirming the movement state of the user's body, the method further includes: Based on the photosensitive detection signal output by the photosensitive detection device, it is determined whether the user's heart rate change is in an abnormal state.

9. A hearing aid, characterized in that: The hearing aid comprises: A control device, the control device being used to store and execute the human body state detection method according to any one of claims 1 to 8; A motion detection device, the motion detection device is electrically connected to the control device, and the motion detection device is used to output a motion detection signal; A prompting device, the prompting device is electrically connected to the control device, and the prompting device is used to output a prompting signal; A voice receiving device, the voice receiving device is electrically connected to the control device, and the voice receiving device is used to receive a voice signal; A key trigger device, the key trigger device is electrically connected to the control device, and the key trigger device is used to output a key trigger signal; A Bluetooth communication device, the Bluetooth communication device is electrically connected to the control device, and the Bluetooth communication device is used for the control device to communicate with the mobile terminal; A photosensitive detection device is electrically connected to the control device, and is used to output a photosensitive detection signal.

10. A warning system, characterized in that: The warning system comprises a mobile terminal, a cloud and the hearing aid as claimed in claim 9.

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