CN113507681B - State monitoring device and monitoring method for bone conduction hearing device - Google Patents
State monitoring device and monitoring method for bone conduction hearing device Download PDFInfo
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- CN113507681B CN113507681B CN202110747489.9A CN202110747489A CN113507681B CN 113507681 B CN113507681 B CN 113507681B CN 202110747489 A CN202110747489 A CN 202110747489A CN 113507681 B CN113507681 B CN 113507681B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04R29/00—Monitoring arrangements; Testing arrangements
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- H—ELECTRICITY
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- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
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Abstract
本发明属于音频通信和骨导听觉装置的状态监测技术领域，具体地说，涉及一种用于骨导听觉装置的状态监测装置及监测方法，该装置包括：数据采集模块，用于实时获取设置在骨导听觉装置上的输入电阻抗检测电路所采集的输入电阻抗；判断模块，用于根据电阻抗判别准则，基于实时获取的输入电阻抗，判断当前状态下，骨导听觉装置的佩戴状态；或根据负载力阻抗判别准则，基于实时获取的负载力阻抗，判断当前状态下，骨导听觉装置的佩戴状态；和状态监测模块，用于根据判断结果，监测骨导听觉装置的佩戴状态，对骨导听觉装置进行开关机和调整音量操作，完成对骨导听觉装置的状态监测。
The invention belongs to the technical field of audio communication and state monitoring of bone conduction hearing devices, and in particular, relates to a state monitoring device and a monitoring method for bone conduction hearing devices. The device includes: a data acquisition module for acquiring settings in real time The input electrical impedance collected by the input electrical impedance detection circuit on the bone conduction hearing device; the judgment module is used to judge the wearing state of the bone conduction hearing device in the current state based on the input electrical impedance obtained in real time according to the electrical impedance discrimination criterion ; Or according to the load force impedance judgment criterion, based on the load force impedance obtained in real time, determine the wearing state of the bone conduction hearing device in the current state; and a state monitoring module, which is used to monitor the wearing state of the bone conduction hearing device according to the judgment result, The bone conduction hearing device is switched on and off and the volume is adjusted to complete the state monitoring of the bone conduction hearing device.
Description
Technical Field
The invention belongs to the technical field of state monitoring of audio communication and bone conduction hearing devices, and particularly relates to a state monitoring device and a state monitoring method for a bone conduction hearing device.
Background
In order to ensure the hearing health of the people, the development capability of the autonomous technology of the hearing device still needs to be enhanced. The popularization of the bone conduction hearing device can become effective supplement of the traditional air conduction earphone, and technical progress of hearing rehabilitation and wearable equipment is supported. The bone conduction hearing technology transmits external sound waves to the inner ear through skull vibration, so that the external sound is sensed, and the bone conduction hearing technology has the advantages of no ear blockage, comfort in wearing, difficulty in generating whistling and the like. However, compared with the air conduction earphone theory technology, the theory technology of the bone conduction hearing device is far from mature, and a plurality of scientific and technical problems to be solved are still remained. Bone conduction hearing devices generally include: bone conduction hearing aids, bone conduction earphones, and the like. Bone conduction hearing devices are gradually popularized and applied in the medical hearing aid field and the consumer electronics field, and become an important sound reproduction device gradually.
Currently, a temperature sensor or other additional sensors for automatic shutdown are provided on an existing bone conduction hearing device to detect the use state of the bone conduction hearing device. When the using state of the bone conduction hearing device changes, the load force impedance of the bone conduction hearing device changes, and real-time feedback is carried out, so that the input electrical impedance of the bone conduction hearing device changes. Therefore, when the bone conduction hearing device is taken off from the wearer in the on state of the bone conduction hearing device, the bone conduction hearing device cannot be automatically powered off, the automatic power saving effect cannot be achieved, the electric energy waste of the battery cannot be avoided, and the service life of the battery cannot be shortened. According to the invention, an additional sensor is not needed to detect the use state of the bone conduction hearing device, the input electrical impedance can be obtained by directly measuring the input current and voltage signals in real time in the hearing device, so that the load condition of the bone conduction hearing device is judged, the use state of the bone conduction hearing device is further judged, and when the load is judged to be no-load, the automatic power-off or mute state is started, so that the power-saving effect is achieved. When the load of the bone conduction hearing device is judged to be changed from the idle load to the wearing state, the normal volume or the preferred volume can be automatically adjusted for playing.
Disclosure of Invention
To solve the above-mentioned drawbacks of the prior art, the present invention provides a condition monitoring device for a bone conduction hearing device, comprising:
the data acquisition module is used for acquiring the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
the judging module is used for judging the wearing state of the bone conduction hearing device in the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or judging the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judgment criterion; and
and the state monitoring module is used for monitoring the wearing state of the bone conduction hearing device according to the judgment result, switching on and off the bone conduction hearing device and adjusting the volume to complete the state monitoring of the bone conduction hearing device.
As an improvement of the above technical solution, the specific establishment process of the electrical impedance criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
and clustering the obtained input impedance characteristics of the bone conduction hearing device in a wearing state and the input impedance characteristics of the bone conduction hearing device in an idle load state by using a clustering method, and analyzing main distinguishable characteristics of the bone conduction hearing device in the wearing state and the idle load state so as to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wearing threshold value, thereby forming an electrical impedance judgment criterion for judging whether the bone conduction hearing device is worn or not.
As an improvement of the above technical solution, the specific determination process of the determination module is as follows:
according to the input impedance acquired in real time, the wearing state of the bone conduction hearing device under the current state is judged by utilizing the established impedance judgment criterion;
if the input electrical impedance acquired in real time is smaller than or equal to a preset wearing threshold, determining that the wearing state of the bone conduction hearing device is a wearing state;
if the input electrical impedance acquired in real time is greater than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the input electrical impedance acquired in real time is greater than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the input electrical impedance acquired in real time is less than or equal to a preset no-load-rotation wearing threshold value, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
As an improvement of the above technical solution, the specific establishment process of the load force impedance criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the input electrical impedance characteristics of the obtained bone conduction hearing device under the wearing state and the input electrical impedance characteristics under the no-load state by a clustering method,
when the power coupling model and the corresponding parameters of the bone conduction hearing device are known, the input impedance acquired in real time is reversely deduced to obtain the load force impedance of the corresponding bone conduction hearing device, the load force impedance is used as the load force impedance acquired in real time, and the main distinguishable characteristics of the load force impedance of the bone conduction hearing device in a wearing state and the load force impedance of the bone conduction hearing device in an idle state are analyzed through a clustering method, so that a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wear threshold value are obtained, and further a load force impedance judgment criterion for judging whether the bone conduction hearing device is worn or not is formed.
As an improvement of the above technical solution, the specific determination process of the determination module is as follows:
according to the load force impedance obtained in real time, the wearing state of the bone conduction hearing device in the current state is judged by utilizing the established load force impedance judgment criterion;
if the load force impedance acquired in real time is larger than or equal to a preset wearing threshold, judging that the wearing state of the bone conduction hearing device is the wearing state;
if the load force impedance acquired in real time is less than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the load force impedance acquired in real time is less than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the load force impedance acquired in real time is greater than or equal to a no-load-rotation wearing threshold value set in advance, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
As an improvement of the above technical solution, the specific process of the state monitoring module is as follows:
if the judgment result is that the bone conduction hearing device is in a wearing state, keeping the state unchanged and not performing any operation;
if the judgment result is that the bone conduction hearing device is in an idle state, the bone conduction hearing device is turned off or the volume is reduced;
if the judgment result is that the bone conduction hearing device is in a no-load state after being worn, the bone conduction hearing device is automatically powered off, the volume is reduced, or the bone conduction hearing device is in a mute state;
and if the judgment result is that the bone conduction hearing device is in the no-load rotation wearing state, the bone conduction hearing device is started, and the volume is increased or reduced to the normal volume according to the previous use condition and personal preference of the wearer.
The invention also provides a condition monitoring method for the bone conduction hearing device, which comprises the following steps:
the data acquisition module acquires the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
the judging module judges the wearing state of the bone conduction hearing device under the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or the judging module judges the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judging criterion;
and the state monitoring module monitors the wearing state of the bone conduction hearing device according to the judgment result, and performs on-off and volume adjustment operations on the bone conduction hearing device to complete state monitoring on the bone conduction hearing device.
Compared with the prior art, the invention has the beneficial effects that:
the device only uses the input electrical impedance of the bone conduction hearing device as an input parameter to judge the use state of the bone conduction hearing device, so that the use state of the bone conduction hearing device, namely the wearing state, the no-load state, the wearing-to-no-load state and the no-load-to-wearing state can be judged in real time without depending on other additional sensors, the effect that the bone conduction hearing device can be automatically turned off and efficiently save electricity is achieved, and the device is beneficial to efficiently saving electric energy of the bone conduction hearing devices such as bone conduction hearing aids, bone conduction earphones and the like.
Drawings
FIG. 1 is a flow diagram of one embodiment of a software defined networking based instruction block loading method of the present invention;
FIG. 2 is a graph of the variation of the amplitude and frequency of the input electrical impedance of different subjects in different states when wearing the bone conduction hearing device, according to the electrical impedance discrimination criteria established in the instruction block loading method based on the software defined network;
FIG. 3 is a graph showing the relationship between the phase and frequency of the input electrical impedance of different subjects in different states when wearing the bone conduction hearing device, according to the electrical impedance discrimination criteria established in the instruction block loading method based on the software defined network;
fig. 4 is a schematic circuit diagram of an input electrical impedance test of a bone conduction hearing device.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
The present invention provides a condition monitoring device for a bone conduction hearing device, the device comprising:
the data acquisition module is used for acquiring the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
as shown in fig. 4, the input electrical impedance detection circuit is a circuit formed by connecting a power supply, a resistor and a bone conduction hearing device in series;
wherein, the input impedance Z of the bone conduction device is as follows:
Z＝Rr·V2/(V2-V1)；
wherein R isrIs the resistance value of the resistor; v1Is a resistance RrAn input voltage measured after being connected in series with the bone conduction hearing device; v2Is the input voltage measured on the bone conduction hearing device;
as shown in FIG. 4, RgA load resistance that is a power supply; egIs the working voltage of the power supply;
the judging module is used for judging the wearing state of the bone conduction hearing device in the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or judging the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judgment criterion; and
specifically, as shown in fig. 2 and 3, the electrical impedance criterion includes two cases: the first is a discriminant criterion established based on the input electrical impedance; the second is a judgment criterion established by load force impedance obtained by inverse pushing of input electrical impedance;
the specific establishment process of the first discrimination criterion established based on the input electrical impedance is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
and clustering the obtained input impedance characteristics of the bone conduction hearing device in a wearing state and the input impedance characteristics of the bone conduction hearing device in an idle load state by using a clustering method, and analyzing main distinguishable characteristics of the bone conduction hearing device in the wearing state and the idle load state so as to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wearing threshold value, thereby forming an electrical impedance judgment criterion for judging whether the bone conduction hearing device is worn or not.
Based on the established judgment criterion, the specific judgment process of the judgment module is as follows:
according to the input impedance acquired in real time, the wearing state of the bone conduction hearing device under the current state is judged by utilizing the established impedance judgment criterion;
if the input electrical impedance acquired in real time is smaller than or equal to a preset wearing threshold, determining that the wearing state of the bone conduction hearing device is a wearing state;
if the input electrical impedance acquired in real time is greater than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the input electrical impedance acquired in real time is greater than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the input electrical impedance acquired in real time is less than or equal to a preset no-load-rotation wearing threshold value, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
The second load force impedance judgment criterion established based on the load force impedance obtained by the input electrical impedance back-thrust is specifically established in the following process:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the input electrical impedance characteristics of the obtained bone conduction hearing device under the wearing state and the input electrical impedance characteristics under the no-load state by a clustering method,
when the power coupling model and the corresponding parameters of the bone conduction hearing device are known, the load force impedance of the corresponding bone conduction hearing device is obtained by reversely deducing the input electrical impedance and is used as the load force impedance obtained in real time, and the main distinguishable characteristics of the load force impedance (skull force impedance) of the bone conduction hearing device in a wearing state and the load force impedance of the bone conduction hearing device in an idle state are analyzed by a clustering method, so that a wearing threshold, an idle threshold, a wearing-to-idle threshold and an idle-to-wearing threshold are obtained, and a criterion for judging whether the bone conduction hearing device is worn or not is formed.
Based on the above criterion, the specific judgment process of the judgment module is as follows:
according to the load force impedance obtained in real time, the wearing state of the bone conduction hearing device in the current state is judged by utilizing the established load force impedance judgment criterion;
if the load force impedance acquired in real time is larger than or equal to a preset wearing threshold, judging that the wearing state of the bone conduction hearing device is the wearing state;
if the load force impedance acquired in real time is less than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the load force impedance acquired in real time is less than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the load force impedance acquired in real time is greater than or equal to a no-load-rotation wearing threshold value set in advance, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
As shown in fig. 2, the difference between the amplitude-frequency response of the input electrical impedance in the wearing state and the no-load state is significant, the characteristics of the input electrical impedance of the bone conduction device in the wearing state basically do not change with the change of the wearing individual, and the difference between the amplitude-frequency response of the input electrical impedance of the bone conduction device corresponding to different users is very small when the bone conduction device is worn. Under the wearing state of an individual, the amplitude-frequency response of the bone conduction hearing device is relatively flat, and basically no sharp formant exists. Under no-load conditions, the bone conduction hearing device has very sharp resonance peaks in the frequency range of 0.1kHz to 1 kHz.
As shown in fig. 3, the difference between the phase-frequency response of the input electrical impedance in the wearing state and the no-load state is significant, the characteristics of the input electrical impedance of the bone conduction device in the wearing state basically do not change with the change of the wearing individual, and the difference between the phase-frequency response of the input electrical impedance of the corresponding bone conduction device when different users wear the bone conduction device is very small. In the idle state, at the resonant frequency of the amplitude-frequency response formant within the frequency range of 0.1kHz to 1kHz, a very steep phase change occurs accordingly.
And the state monitoring module is used for monitoring the wearing state of the bone conduction hearing device according to the judgment result, switching on and off the bone conduction hearing device and adjusting the volume to complete the state monitoring of the bone conduction hearing device.
If the judgment result is that the bone conduction hearing device is in a wearing state, keeping the state unchanged and not performing any operation;
if the judgment result is that the bone conduction hearing device is in an idle state, the bone conduction hearing device is automatically powered off, or the volume is reduced, or the bone conduction hearing device is adjusted to be in a mute state, so that the power saving effect is achieved;
if the judgment result is that the bone conduction hearing device is in a no-load state after being worn, the bone conduction hearing device is automatically powered off, the volume is reduced, or the bone conduction hearing device is in a mute state, so that the power saving effect is achieved;
and if the judgment result is that the bone conduction hearing device is in the no-load rotation wearing state, the bone conduction hearing device is started, and the volume is increased or reduced to the normal volume according to the previous use condition and personal preference of the wearer.
As shown in fig. 1, the present invention also provides a condition monitoring method for a bone conduction hearing device, the method comprising:
the data acquisition module acquires the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
the judging module judges the wearing state of the bone conduction hearing device under the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or the judging module judges the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judging criterion;
and the state monitoring module monitors the wearing state of the bone conduction hearing device according to the judgment result, and performs on-off and volume adjustment operations on the bone conduction hearing device to complete state monitoring on the bone conduction hearing device.
The method of the invention judges the use state of the bone conduction hearing device by monitoring the input electrical impedance of the bone conduction hearing device in real time and on line, and realizes the automatic shutdown and power saving functions of the bone conduction hearing device. According to the method, an additional sensor is not needed, the input voltage is obtained from the bone conduction hearing device, the input voltage measured after the bone conduction hearing device is connected with the resistor in series, and the resistance value of the resistor are obtained, so that the input electrical impedance of the device can be measured, the measurement is simple, and the automatic energy-saving and power-saving functions of the bone conduction hearing device can be efficiently realized.
Example 1.
The invention also provides a condition monitoring method for the bone conduction hearing device, which comprises the following steps:
step 1) a data acquisition module acquires an input electrical impedance acquired by an input electrical impedance detection circuit arranged on a bone conduction hearing device in real time;
and inputting the magnitude of the electrical impedance based on the collected bone conduction hearing device in a wearing state and an idle state. As shown in fig. 2, the input impedance of the bone conduction hearing device is basically fixed in one situation when it is unloaded, but the input impedance is no longer uniform in one situation when it is worn due to the difference in skull bone force impedance among different subjects. When different testees wear the same bone conduction hearing device at the same position, the input electrical impedance is very close; and the input electrical impedance under the wearing state is obviously different from the input electrical impedance under the idle state.
Fig. 2 shows the input electrical impedance of a plurality of subjects wearing the same bone conduction headset at the same position, and shows the input electrical impedance when they are unloaded.
The main distinguishable characteristics of the input electrical impedance under the wearing state and the input electrical impedance under the no-load state are analyzed through a clustering method, and then an electrical impedance judgment criterion of whether the bone conduction hearing device is worn or not is formed.
Step 2) the judging module judges the wearing state of the bone conduction hearing device in real time based on the input impedance acquired in real time according to the established impedance judgment criterion;
and step 3) the state monitoring module monitors the wearing state of the bone conduction hearing device according to the judgment result, and performs on-off and volume adjustment operations on the bone conduction hearing device to complete state monitoring on the bone conduction hearing device.
Specifically, if the judgment result is that the bone conduction hearing device is in a wearing state, the state is kept unchanged, and no operation is performed;
if the judgment result is that the bone conduction hearing device is in an idle state, the bone conduction hearing device is automatically powered off, or the volume is reduced, or the bone conduction hearing device is adjusted to be in a mute state, so that the power saving effect is achieved;
if the judgment result is that the bone conduction hearing device is in a no-load state after being worn, the bone conduction hearing device is automatically powered off, the volume is reduced, or the bone conduction hearing device is in a mute state, so that the power saving effect is achieved;
and if the judgment result is that the bone conduction hearing device is in the no-load rotation wearing state, the bone conduction hearing device is started, and the volume is increased or reduced to the normal volume according to the previous use condition and personal preference of the wearer.
Example 2.
Step 1) a data acquisition module acquires an input electrical impedance acquired by an input electrical impedance detection circuit arranged on a bone conduction hearing device in real time;
based on the magnitude of the input impedance of the bone conduction hearing device in a wearing state and an idling state, the input impedance of the bone conduction hearing device in the idling state is basically fixed in one situation, but the input impedance in the wearing state is not unified in one situation due to different skull mechanical impedances of different subjects. When different testees wear the same bone conduction hearing device at the same position, the input electrical impedance is very close; and the input electrical impedance under the wearing state is obviously different from the input electrical impedance under the idle state.
And 2) when the power coupling model and the corresponding parameters of the bone conduction hearing device are known, obtaining the load force impedance of the corresponding bone conduction hearing device by resisting the input resistance obtained in real time, taking the load force impedance as the load force impedance obtained in real time, and analyzing the main distinguishable characteristics of the load force impedance (skull bone force impedance) in a wearing state and the force impedance in no load by a clustering method to further form a load force impedance judgment criterion of whether the bone conduction hearing device is worn or not.
Step 3) the judging module judges the wearing state of the bone conduction hearing device in real time based on the load force impedance acquired in real time according to the established load force impedance judging criterion;
and step 4), the state monitoring module monitors the wearing state of the bone conduction hearing device according to the judgment result, and performs on-off and volume adjustment operations on the bone conduction hearing device to complete state monitoring on the bone conduction hearing device.
Specifically, if the judgment result is that the bone conduction hearing device is in a wearing state, the state is kept unchanged, and no operation is performed;
if the judgment result is that the bone conduction hearing device is in an idle state, the bone conduction hearing device is automatically powered off, or the volume is reduced, or the bone conduction hearing device is adjusted to be in a mute state, so that the power saving effect is achieved;
if the judgment result is that the bone conduction hearing device is in a no-load state after being worn, the bone conduction hearing device is automatically powered off, the volume is reduced, or the bone conduction hearing device is in a mute state, so that the power saving effect is achieved;
and if the judgment result is that the bone conduction hearing device is in the no-load rotation wearing state, the bone conduction hearing device is started, and the volume is increased or reduced to the normal volume according to the previous use condition and personal preference of the wearer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A condition monitoring device for a bone conduction hearing device, the device comprising:
the data acquisition module is used for acquiring the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
the judging module is used for judging the wearing state of the bone conduction hearing device in the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or judging the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judgment criterion;
the specific establishment process of the electrical impedance judgment criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the obtained input impedance characteristics of the bone conduction hearing device in a wearing state and the input impedance characteristics in an idle load state through a clustering method, and analyzing main distinguishable characteristics of the bone conduction hearing device in the wearing state and the idle load state so as to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wearing threshold value, and further forming an electrical impedance judgment criterion for judging whether the bone conduction hearing device is worn or not;
the specific establishment process of the load force impedance judgment criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the input electrical impedance characteristics of the obtained bone conduction hearing device under the wearing state and the input electrical impedance characteristics under the no-load state by a clustering method,
when the power coupling model and the corresponding parameters of the bone conduction hearing device are known, reversely pushing the input electrical impedance acquired in real time to obtain the load force impedance of the corresponding bone conduction hearing device, taking the load force impedance as the load force impedance acquired in real time, and analyzing the main distinguishable characteristics of the load force impedance of the bone conduction hearing device in a wearing state and the load force impedance of the bone conduction hearing device in an idle load state by a clustering method to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wear threshold value, thereby forming a load force impedance judgment criterion of whether the bone conduction hearing device is worn or not; and
and the state monitoring module is used for monitoring the wearing state of the bone conduction hearing device according to the judgment result, switching on and off the bone conduction hearing device and adjusting the volume to complete the state monitoring of the bone conduction hearing device.
2. The condition monitoring device for the bone conduction hearing device according to claim 1, wherein the specific judgment process of the judgment module is as follows:
according to the input impedance acquired in real time, the wearing state of the bone conduction hearing device under the current state is judged by utilizing the established impedance judgment criterion;
if the input electrical impedance acquired in real time is smaller than or equal to a preset wearing threshold, determining that the wearing state of the bone conduction hearing device is a wearing state;
if the input electrical impedance acquired in real time is greater than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the input electrical impedance acquired in real time is greater than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the input electrical impedance acquired in real time is less than or equal to a preset no-load-rotation wearing threshold value, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
3. The condition monitoring device for the bone conduction hearing device according to claim 1, wherein the specific judgment process of the judgment module is as follows:
according to the load force impedance obtained in real time, the wearing state of the bone conduction hearing device in the current state is judged by utilizing the established load force impedance judgment criterion;
if the load force impedance acquired in real time is larger than or equal to a preset wearing threshold, judging that the wearing state of the bone conduction hearing device is the wearing state;
if the load force impedance acquired in real time is less than or equal to a preset no-load threshold, judging that the wearing state of the bone conduction hearing device is the no-load state;
if the load force impedance acquired in real time is less than or equal to a preset wearing-to-no-load threshold, judging that the wearing state of the bone conduction hearing device is a wearing-to-no-load state;
and if the load force impedance acquired in real time is greater than or equal to a no-load-rotation wearing threshold value set in advance, judging that the wearing state of the bone conduction hearing device is a no-load-rotation wearing state.
4. The condition monitoring device for a bone conduction hearing device according to claim 1, wherein the condition monitoring module is embodied by:
if the judgment result is that the bone conduction hearing device is in a wearing state, keeping the state unchanged and not performing any operation;
if the judgment result is that the bone conduction hearing device is in an idle state, the bone conduction hearing device is turned off or the volume is reduced;
if the judgment result is that the bone conduction hearing device is in a no-load state after being worn, the bone conduction hearing device is automatically powered off, the volume is reduced, or the bone conduction hearing device is in a mute state;
and if the judgment result is that the bone conduction hearing device is in the no-load rotation wearing state, the bone conduction hearing device is started, and the volume is increased or reduced to the normal volume according to the previous use condition and personal preference of the wearer.
5. A condition monitoring method for a bone conduction hearing device, the method being implemented based on the condition monitoring device for a bone conduction hearing device of any one of the preceding claims 1-4, the method comprising:
the data acquisition module acquires the input electrical impedance acquired by an input electrical impedance detection circuit arranged on the bone conduction hearing device in real time;
the judging module judges the wearing state of the bone conduction hearing device under the current state based on the input impedance acquired in real time according to the impedance judgment criterion; or the judging module judges the wearing state of the bone conduction hearing device under the current state based on the load force impedance acquired in real time according to the load force impedance judging criterion;
the specific establishment process of the electrical impedance judgment criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the obtained input impedance characteristics of the bone conduction hearing device in a wearing state and the input impedance characteristics in an idle load state through a clustering method, and analyzing main distinguishable characteristics of the bone conduction hearing device in the wearing state and the idle load state so as to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wearing threshold value, and further forming an electrical impedance judgment criterion for judging whether the bone conduction hearing device is worn or not;
the specific establishment process of the load force impedance judgment criterion is as follows:
respectively measuring the input electrical impedance of the bone conduction hearing device in a wearing state and an idle state, respectively drawing a curve of the input electrical impedance changing along with frequency in the wearing state and a curve of the input electrical impedance changing along with frequency in the idle state, and obtaining the input electrical impedance characteristic of the bone conduction hearing device in the wearing state and the input electrical impedance characteristic in the idle state according to the corresponding curves;
clustering the input electrical impedance characteristics of the obtained bone conduction hearing device under the wearing state and the input electrical impedance characteristics under the no-load state by a clustering method,
when the power coupling model and the corresponding parameters of the bone conduction hearing device are known, reversely pushing the input electrical impedance acquired in real time to obtain the load force impedance of the corresponding bone conduction hearing device, taking the load force impedance as the load force impedance acquired in real time, and analyzing the main distinguishable characteristics of the load force impedance of the bone conduction hearing device in a wearing state and the load force impedance of the bone conduction hearing device in an idle load state by a clustering method to obtain a wearing threshold value, an idle load threshold value, a wearing-to-idle load threshold value and an idle load-to-wear threshold value, thereby forming a load force impedance judgment criterion of whether the bone conduction hearing device is worn or not;
and the state monitoring module monitors the wearing state of the bone conduction hearing device according to the judgment result, and performs on-off and volume adjustment operations on the bone conduction hearing device to complete state monitoring on the bone conduction hearing device.
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| DE10041726C1 (en) * | 2000-08-25 | 2002-05-23 | Implex Ag Hearing Technology I | Implantable hearing system with means for measuring the coupling quality |
| GB0321617D0 (en) * | 2003-09-10 | 2003-10-15 | New Transducers Ltd | Audio apparatus |
| DE102004023049B4 (en) * | 2004-05-11 | 2006-05-04 | Siemens Audiologische Technik Gmbh | Hearing aid device with a switching device for switching on and off and corresponding method |
| US7949144B2 (en) * | 2006-06-12 | 2011-05-24 | Phonak Ag | Method for monitoring a hearing device and hearing device with self-monitoring function |
| EP1926343B1 (en) * | 2006-11-23 | 2008-11-05 | Siemens Audiologische Technik GmbH | Hearing aid with automatic deactivation and a corresponding method |
| US20140363003A1 (en) * | 2013-06-09 | 2014-12-11 | DSP Group | Indication of quality for placement of bone conduction transducers |
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| CN110109544B (en) * | 2019-04-29 | 2024-09-20 | 努比亚技术有限公司 | Method for adjusting motor vibration amplitude, wearable device and readable storage medium |
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| CN112804607B (en) * | 2020-12-24 | 2023-02-07 | 歌尔科技有限公司 | Tone quality adjusting method and device and tone quality adjustable earphone |
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