WO2025232176A1 - 生理信号的测量方法、耳机设备、存储介质及计算机产品 - Google Patents

生理信号的测量方法、耳机设备、存储介质及计算机产品

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Publication number
WO2025232176A1
WO2025232176A1 PCT/CN2024/137158 CN2024137158W WO2025232176A1 WO 2025232176 A1 WO2025232176 A1 WO 2025232176A1 CN 2024137158 W CN2024137158 W CN 2024137158W WO 2025232176 A1 WO2025232176 A1 WO 2025232176A1
Authority
WO
WIPO (PCT)
Prior art keywords
acoustic system
signal
air pressure
wearer
sound signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/137158
Other languages
English (en)
French (fr)
Inventor
姜龙
刘耀诚
黄杰
晋晓琼
钱忠根
吴劼
安康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Publication of WO2025232176A1 publication Critical patent/WO2025232176A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

Definitions

  • This invention relates to the field of headphone technology, and more particularly to a method for measuring physiological signals, a headphone device, a storage medium, and a computer program product.
  • headphone devices have become an indispensable part of people's daily lives.
  • technicians often incorporate heart rate sensors into headphone devices, which use PPG (Photoplethysmography) technology to detect the wearer's heart rate, blood pressure, and other physiological signals.
  • PPG Photoplethysmography
  • the light emitted by the heart rate sensor is easily interfered with by ambient light, making it difficult to accurately capture the wearer's physiological signals. Therefore, how to more accurately acquire the wearer's physiological signals has become a pressing technical problem that the industry needs to solve.
  • the main objective of this invention is to provide a method for measuring physiological signals, an earphone device, a storage medium, and a computer program product. This aims to solve the technical problem in related technologies where earphone devices cannot accurately acquire the wearer's physiological signals due to interference from ambient light during the detection process.
  • this invention proposes a method for measuring physiological signals, which is applied to an earphone device equipped with a barometric pressure detection module. The method includes:
  • the system detects whether the acoustic system corresponding to the headphone device is in a preset sealed state, wherein the acoustic system is an acoustic system composed of the headphone device and the wearer's ear canal; if it is detected that the system is not in a preset sealed state, the acoustic system parameters corresponding to the acoustic system are determined, and the initial air pressure signal in the wearer's ear canal is collected through the air pressure detection module; a target air pressure signal is generated based on the acoustic system parameters and the initial air pressure signal, and the wearer's corresponding physiological signal is determined based on the target air pressure signal.
  • the step of detecting whether the acoustic system corresponding to the headphone device is in a preset sealed state includes:
  • the step of determining whether the acoustic system is in a preset sealed state based on the second sound signal includes:
  • a preset standard sound signal is determined, and the second sound signal is compared with the standard sound signal to obtain a first comparison result; when the first comparison result shows that the second sound signal and the standard sound signal match, the acoustic system is determined to be in a preset sealed state; when the first comparison result shows that the second sound signal and the standard sound signal do not match, the acoustic system is determined not to be in the sealed state.
  • the method further includes:
  • the initial air pressure signal in the wearer's ear canal is collected by the air pressure detection module; the corresponding physiological signal of the wearer is determined based on the initial air pressure signal.
  • the acoustic system parameters include leakage system parameters
  • the step of determining the acoustic system parameters corresponding to the acoustic system includes:
  • the step of determining the leakage system parameters corresponding to the acoustic system based on the headphone frequency response includes:
  • the acoustic system parameters further include conventional system parameters
  • the step of determining the acoustic system parameters corresponding to the acoustic system further includes:
  • the step of generating a target air pressure signal based on the acoustic system parameters and the initial air pressure signal includes:
  • the time-domain impact response parameters corresponding to the initial air pressure signal are determined based on the acoustic system parameters; the initial air pressure signal is then corrected based on the time-domain impact response parameters to generate the target air pressure signal.
  • the earphone device and the mobile terminal are communicatively connected. After the step of determining the physiological signal corresponding to the wearer based on the target air pressure signal, the method further includes:
  • a preset physiological signal range is determined, and it is determined whether the physiological signal is within the preset physiological signal range; if it is determined that the physiological signal is not within the preset physiological signal range, a preset alarm message is output to the mobile terminal.
  • the method further includes:
  • the target air pressure signal is sent to the mobile terminal so that the mobile terminal can determine the wearer's corresponding physiological signals based on the target air pressure signal.
  • the present invention also proposes an earphone device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the physiological signal measurement method as described above.
  • the present invention also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the physiological signal measurement method described above.
  • the present invention also provides a computer program product, the computer program product comprising a computer program, which, when executed by a processor, implements the steps of the physiological signal measurement method as described above.
  • the physiological signal measurement method proposed in this invention is applied to an earphone device equipped with a barometric pressure detection module. It detects whether the acoustic system corresponding to the earphone device is in a preset sealed state, wherein the acoustic system is composed of the earphone device and the wearer's ear canal. Upon detecting that the device is not in a preset sealed state, it determines the acoustic system parameters corresponding to the acoustic system and collects an initial barometric pressure signal within the wearer's ear canal through the barometric pressure detection module. Based on the acoustic system parameters and the initial barometric pressure signal, it generates a target barometric pressure signal and determines the wearer's corresponding physiological signal based on the target barometric pressure signal.
  • the headphone device when the headphone device needs to detect the wearer's physiological signals, it first detects whether the acoustic system composed of the headphone device and the wearer's ear canal is in a sealed state that will not leak signals to the external environment. Then, if the headphone device detects that the acoustic system in which the headphone device is located is not in a sealed state, it determines the acoustic system parameters corresponding to the acoustic system and calls its own configured air pressure detection module to collect the initial air pressure signal in the wearer's ear canal. Finally, the headphone device corrects the initial air pressure signal according to the acoustic system parameters to generate a target air pressure signal, and then determines the wearer's corresponding physiological signals based on the generated target air pressure signal.
  • this invention solves the technical problem in related technologies where headphone devices cannot accurately acquire the wearer's physiological signals due to interference from external ambient light during the detection process.
  • this invention constructs an acoustic system consisting of a headphone device and the wearer's ear canal. When the acoustic system is not sealed, acoustic system parameters indicating the degree of signal leakage within the system are determined. These parameters are then used to correct the air pressure signal collected from the wearer's ear canal, caused by changes in the ear canal arteries. The wearer's physiological signals are then calculated from the corrected air pressure signal.
  • Figure 1 is a flowchart illustrating the physiological signal measurement method of the present invention in Embodiment 1.
  • Figure 2 is a schematic diagram of the sealed state of the acoustic system involved in an embodiment of the physiological signal measurement method of the present invention.
  • Figure 3 is a schematic diagram of the acoustic system in a non-closed state according to an embodiment of the physiological signal measurement method of the present invention.
  • Figure 4 is a schematic diagram of the equivalent circuit model of the acoustic system involved in an embodiment of the physiological signal measurement method of the present invention
  • Figure 5 is a schematic diagram of the initial air pressure signal involved in an embodiment of the physiological signal measurement method of the present invention.
  • Figure 6 is a schematic diagram of the target air pressure signal involved in an embodiment of the physiological signal measurement method of the present invention.
  • Figure 7 is a schematic diagram of resting heart rate waveform measurement data according to an embodiment of the physiological signal measurement method of the present invention.
  • Figure 8 is a schematic diagram of the hardware operating environment of the physiological signal measurement method in this embodiment of the invention.
  • FIG. 9 is a detailed structural schematic diagram of the headphone device involved in an embodiment of the physiological signal measurement method of the present invention.
  • Figure 10 is a schematic diagram of the parameter mapping relationship of the leakage system involved in an embodiment of the physiological signal measurement method of the present invention.
  • the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
  • directional indicators such as up, down, left, right, front, back, etc.
  • the following description uses an earphone device, as shown in Figure 9, which is internally configured with a microphone, barometer, Bluetooth platform, speaker and antenna, as the execution subject, and proposes the overall concept of the physiological signal measurement method of the present invention.
  • headphone devices have become an indispensable part of people's daily lives.
  • technicians often incorporate heart rate sensors into headphone devices.
  • PPG Photoplethysmography
  • these sensors use PPG (Photoplethysmography) technology to detect the wearer's heart rate, blood pressure, and other physiological signals.
  • PPG Photoplethysmography
  • the light emitted by the heart rate sensor is easily affected by ambient light, making it difficult to accurately capture the wearer's physiological signals.
  • this invention provides a method for measuring physiological signals.
  • This method is applied to an earphone device equipped with a barometric pressure detection module.
  • the method includes: detecting whether the acoustic system corresponding to the earphone device is in a preset sealed state, wherein the acoustic system is an acoustic system composed of the earphone device and the wearer's ear canal; after detecting that it is not in a preset sealed state, determining the acoustic system parameters corresponding to the acoustic system, and acquiring an initial barometric pressure signal in the wearer's ear canal through the barometric pressure detection module; generating a target barometric pressure signal based on the acoustic system parameters and the initial barometric pressure signal, and determining the wearer's corresponding physiological signal based on the target barometric pressure signal.
  • this invention solves the technical problem in related technologies where headphone devices cannot accurately acquire the wearer's physiological signals due to interference from external ambient light during the detection process.
  • this invention constructs an acoustic system consisting of a headphone device and the wearer's ear canal. When the acoustic system is not sealed, acoustic system parameters indicating the degree of signal leakage within the system are determined. These parameters are then used to correct the air pressure signal collected from the wearer's ear canal, caused by changes in the ear canal arteries. The wearer's physiological signals are then calculated from the corrected air pressure signal.
  • the present invention provides a method for measuring physiological signals, which is applied to an earphone device equipped with a barometric pressure detection module; referring to Figure 1, Figure 1 is a flowchart of the first embodiment of the method for measuring physiological signals of the present invention.
  • the method for measuring the physiological signal includes steps S10 to S30:
  • Step S10 Detect whether the acoustic system corresponding to the headphone device is in a preset sealed state, wherein the acoustic system is the acoustic system composed of the headphone device and the wearer's ear canal;
  • Figure 2 is a schematic diagram of the sealed state of the acoustic system involved in an embodiment of the physiological signal measurement method of the present invention
  • Figure 3 is a schematic diagram of the non-sealed state of the acoustic system involved in an embodiment of the physiological signal measurement method of the present invention.
  • the sealed state is the state in which the acoustic system will not leak various signals to the external environment. It can be understood that when the acoustic system formed by the headphone device and the wearer's ear canal is in the non-sealed state as shown in Figure 3, due to the existence of leakage channels, the air pressure signal generated inside the wearer's ear canal will leak to the external environment. As a result, the air pressure signal in the wearer's ear canal will be significantly different from the air pressure signal collected in the sealed state as shown in Figure 2. Consequently, the physiological signal calculated by the headphone device based on the air pressure signal will also be significantly different.
  • the headphone device when the headphone device needs to detect the wearer's physiological signals, it first checks whether the acoustic system consisting of itself and the wearer's ear canal is in a sealed state that will not leak signals to the external environment.
  • the headphone device when the headphone device needs to detect the wearer's heart rate signal, it first determines whether it is completely in contact with the wearer's ear canal, and further determines whether the acoustic system formed by the headphone device and the wearer's ear canal is in a sealed state that will not leak signals to the external environment.
  • the headphone device can determine whether the headphone device itself and the wearer's ear canal are completely in contact, and thus determine whether the acoustic system is in a sealed state that will not leak signals to the external environment.
  • step S10 may include steps S101 to S102:
  • Step S101 Output a first sound signal and receive a second sound signal corresponding to the first sound signal in the acoustic system corresponding to the headphone device;
  • Step S102 Determine whether the acoustic system is in a preset sealed state based on the second sound signal.
  • the first sound signal is a specific sound signal used to test whether the acoustic system consisting of the headphone device and the wearer's ear canal leaks signals to the external environment.
  • the first sound signal can be any one of the following: a frequency sweep signal, a pseudo-random signal, or a noise signal.
  • the second sound signal is the sound signal collected by the headphone device through its own microphone.
  • the headphone device when the headphone device needs to detect the wearer's physiological signals, it first outputs a first sound signal to the wearer's ear canal to detect whether the acoustic system formed between the headphone device and the wearer's ear canal will leak signals to the outside world. It then receives a second sound signal generated after the first sound signal is attenuated during propagation within the acoustic system. Based on the second sound signal, the headphone device determines whether the acoustic system formed by the headphone device and the wearer's ear canal is in a sealed state that will not leak signals to the external environment.
  • the headphone device when the headphone device needs to detect the wearer's heart rate signal, it first outputs a first noise signal into the wearer's ear canal through its own configured speaker to test whether the acoustic system composed of the headphone device and the wearer's ear canal will leak signals to the external environment. At the same time, the headphone device receives a second noise signal P_earbuds, which is obtained by attenuation and transformation of the first noise signal as it is transmitted within the acoustic system, through its own configured microphone.
  • P_earbuds which is obtained by attenuation and transformation of the first noise signal as it is transmitted within the acoustic system, through its own configured microphone.
  • the headphone device determines whether the headphone device and the wearer's ear canal are completely sealed based on the received second noise signal P_earbuds, and further determines whether the acoustic system composed of the headphone device and the wearer's ear canal is in a sealed state that will not leak signals to the external environment.
  • the headphone device can emit a first sound signal into the wearer's ear canal to detect whether the acoustic system is in a sealed state, and can receive a second sound signal generated after the first sound signal has been changed, and then can determine whether the acoustic system is in a sealed state that will not leak signals to the external environment based on the second sound signal.
  • step S102 may include steps S1021 to S1023:
  • Step S1021 Determine a preset standard sound signal, and compare the second sound signal with the standard sound signal to obtain a first comparison result;
  • Step S1022 When the first comparison result shows that the second sound signal and the standard sound signal match, determine that the acoustic system is in a preset sealed state;
  • Step S1023 When the first comparison result shows that the second sound signal and the standard sound signal do not match, it is determined that the acoustic system is not in the sealed state.
  • the standard sound signal is the sound signal captured by the microphone after the first sound signal propagates within the acoustic system without leaking any sound signal to the external environment, i.e., after only undergoing attenuation and other changes. It is understood that the standard sound signal can be stored in the headphone device's own storage device, allowing the headphone device to retrieve the standard sound signal when needed by reading the storage device. Alternatively, the standard sound signal can be stored on a third-party server, allowing the headphone device to retrieve the standard sound signal when needed by accessing the third-party server.
  • the standard sound signal is obtained by technicians through experiments using the headphone device under laboratory conditions, or it can be calculated by technicians based on the size parameters of the headphone device and the ear canal size parameters used in the experiment. It is understood that there are many ways to obtain the standard sound signal, and this invention does not limit this method.
  • the headphone device after receiving the second sound signal corresponding to the first sound signal, the headphone device first reads its own configured storage device to obtain the standard sound signal corresponding to the first sound signal under a preset sealed state. The headphone device then compares the second sound signal and the standard sound signal to obtain a first comparison result. Afterwards, when the headphone device determines that the first comparison result is that the second sound signal and the standard sound signal match, it determines that the acoustic system composed of the headphone device and the wearer's ear canal is in a sealed state that will not leak sound signals to the outside world. When the headphone device determines that the first comparison result is that the second sound signal and the standard sound signal do not match, it determines that the acoustic system composed of the headphone device and the wearer's ear canal is not in a sealed state.
  • the headphone device After the headphone device receives the second noise signal P_earbuds generated in the wearer's ear canal by the first noise signal through the microphone device, it first reads its own configured storage device to obtain the standard noise signal generated in the wearer's ear canal when the first noise signal is in a closed acoustic system state. The headphone device then compares the obtained second noise signal P_earbuds with the standard noise signal, and generates a first comparison result based on whether the second noise signal P_earbuds and the standard noise signal are consistent. After that, the headphone device determines the second noise signal...
  • the P_earbuds match the standard noise signal, it is determined that the first noise signal does not leak into the external environment, thus confirming that the headphone device and the wearer's ear canal are in a complete fit, and that the acoustic system formed between the wearer's ear canal and the headphone device is in a sealed state.
  • the headphone device detects that the second noise signal P_earbuds and the standard noise signal do not match, it is determined that part of the first noise signal has flowed into the external environment through the leakage channel between the headphone device and the wearer's ear canal, thus confirming that the headphone device and the wearer's ear canal are not in a complete fit, and that the acoustic system is not in a sealed state.
  • the terminal device can determine the degree of leakage of the second noise signal through the standard sound signal, and based on the degree of leakage of the second noise signal, it can determine whether the headphone device and the wearer's ear canal are completely in contact, and thus determine whether the acoustic system is in a sealed state that will not leak signals to the external environment.
  • the headphone device in addition to determining whether the acoustic system is in a sealed state through the second sound signal, can also perform calculations based on preset headphone device parameters and ear canal parameters input by the wearer to determine whether the headphone device and the wearer's ear canal are completely in contact, thereby determining whether the acoustic system is in a sealed state. It is understood that there are many ways for the headphone device to determine whether the acoustic system is in a sealed state based on the headphone device parameters and ear canal parameters, and the present invention does not limit this.
  • Step S20 After detecting that the system is not in a preset sealed state, determine the acoustic system parameters corresponding to the acoustic system, and collect the initial air pressure signal in the wearer's ear canal through the air pressure detection module;
  • acoustic system parameters are parameters that can indicate the degree of signal leakage in the acoustic system. This can be understood by referring to Figure 4, which is a schematic diagram of the equivalent circuit model of the acoustic system involved in an embodiment of the physiological signal measurement method of the present invention.
  • the ear canal acoustic system composed of the headphone device and the wearer's ear canal, can be equivalently represented as shown in Figure 4, including: the equivalent acoustic impedance Z1 of the headphone driver and the rear cavity acoustic system, the acoustic capacitance C1 of the headphone front cavity, the acoustic resistance R1 of the headphone outlet, the acoustic quality M1 of the headphone outlet, the acoustic capacitance C2 of the ear canal, the acoustic resistance R_Leak of the leakage path outlet, and the acoustic quality M_Leak of the leakage path outlet, among other acoustic system parameters.
  • the air pressure signal is a low-frequency air pressure signal generated inside the ear canal when the volume of the ear canal changes due to changes in the arteries near the wearer's ear canal.
  • Figure 5 is a schematic diagram of the initial air pressure signal involved in an embodiment of the physiological signal measurement method of the present invention
  • Figure 6 is a schematic diagram of the target air pressure signal involved in an embodiment of the physiological signal measurement method of the present invention.
  • the headphone device when the headphone device detects that the acoustic system composed of itself and the wearer's ear canal is not in a sealed state that will not leak signals to the external environment, the headphone device acquires a second sound signal for detecting the sealed state of the acoustic system, processes the second sound signal to determine the corresponding acoustic system parameters, and at the same time, the headphone device calls its own configured air pressure detection module to collect the initial air pressure signal generated in the wearer's ear canal.
  • the headphone device when the headphone device detects that the acoustic system consisting of itself and the wearer's ear canal is not in a sealed state that will not leak signals to the external environment, the headphone device extracts a second sound signal P_earbuds used to detect the sealed state of the acoustic system, and extracts the sound signal features contained in the second sound signal P_earbuds. The terminal device then determines the signal leakage degree of the second sound signal P_earbuds based on the sound signal features, and determines the acoustic system parameters contained in the equivalent circuit model corresponding to its own acoustic system based on the signal leakage degree. At the same time, the headphone device calls its own configured barometer to collect the initial air pressure signal in the wearer's ear canal caused by changes in the arteries near the ear canal.
  • the headphone device can determine the degree of leakage of the second sound signal during its propagation by extracting the sound signal characteristics of the second sound signal, and then determine the acoustic system parameters that can indicate the degree of signal leakage of the acoustic system in which it is located, and collect the initial air pressure signal generated in the wearer's ear canal.
  • the acoustic system parameters include leakage system parameters
  • the step of "determining the acoustic system parameters corresponding to the acoustic system" in step S20 may include steps S201 to S202:
  • Step S201 Extract each sound signal feature contained in the second sound signal, and determine the headphone frequency response corresponding to the second sound signal based on each of the sound signal features;
  • Step S202 Determine the leakage system parameters corresponding to the acoustic system based on the headphone frequency response.
  • frequency response refers to the relationship between the sound pressure generated by an acoustic system and the frequency when it receives an audio signal.
  • the headphone device when the headphone device determines that the acoustic system is not in a sealed state, it extracts the sound signal features contained in the second sound signal used to detect the sealed state of the acoustic system, and determines the headphone frequency response corresponding to the second sound signal based on the sound signal features. Then, the headphone device determines the leakage system parameters corresponding to the acoustic system based on the headphone frequency response.
  • the headphone device determines that the acoustic system is not in a sealed state, it processes the acquired second noise signal P_earbuds using the FFT (Fast Fourier Transform) algorithm to obtain the sound signal features contained in the second noise signal P_earbuds.
  • the headphone device then obtains the headphone frequency response corresponding to the headphone device at this time based on the sound signal features.
  • the headphone device reads its own configured storage device to obtain the pre-stored leakage system parameters corresponding to the acoustic system in different sealed states. Based on the headphone frequency response, it selects the leakage path outlet acoustic impedance R_Leak parameter contained in the equivalent circuit model corresponding to the acoustic system from the leakage system parameters.
  • the headphone device can determine the degree of leakage of the second sound signal during its propagation by extracting the sound signal characteristics of the second sound signal, and then determine the acoustic system parameters that can indicate the degree of signal leakage of the acoustic system in which it is located.
  • step S202 may specifically include steps S2021 to S2023:
  • Step S2021 Obtain multiple preset reference frequency responses and reference system parameters corresponding to each of the multiple reference frequency responses;
  • Step S2022 Determine the target frequency response from among the multiple reference frequency responses based on the headphone frequency response;
  • Step S2023 Determine the reference system parameters corresponding to the target frequency response as the leakage system parameters corresponding to the acoustic system.
  • the multiple reference frequency responses are the frequency response parameters of multiple acoustic systems with leakage channels of different sizes when the second sound signal is acquired.
  • the reference system parameters are the leakage system parameters required for the acoustic system to obtain an accurate pressure signal under the reference frequency response.
  • the multiple reference frequency responses and their corresponding reference system parameters can be obtained by technicians through experiments under laboratory conditions. This invention does not limit the method of obtaining the reference frequency responses and reference system parameters.
  • the headphone device after the headphone device extracts the headphone frequency response corresponding to the second sound signal, it can also read the storage device to obtain multiple reference frequency responses corresponding to the acoustic system. Then, the headphone device compares the headphone frequency response with the multiple reference frequency responses in sequence to determine the target frequency response that is consistent with the headphone frequency response among the multiple reference frequency responses. Finally, the headphone device determines the reference system parameters corresponding to the target frequency response and determines the reference system parameters corresponding to the target frequency response as the leakage system parameters corresponding to the acoustic system.
  • the headphone device After the headphone device extracts the headphone frequency response corresponding to the second sound signal, it can also read from the storage device to obtain the reference frequency response corresponding to each of the multiple acoustic systems containing leakage channels of different sizes when the second sound signal is collected, and the reference leakage path outlet acoustic impedance corresponding to each of the multiple reference frequency responses. Then, the headphone device compares the headphone frequency response with the multiple reference frequency responses in turn to determine the target frequency response that is consistent with the headphone frequency response among the multiple reference frequency responses. Finally, the headphone device determines the reference leakage path outlet acoustic impedance corresponding to the target frequency response as the leakage path outlet acoustic impedance R_Leak corresponding to the acoustic system.
  • the headphone device can filter out the leakage system parameters corresponding to the acoustic system in which the headphone device is currently located from multiple benchmarks by using the current headphone frequency response of the headphone device.
  • Figure 10 is a schematic diagram of the leakage system parameter mapping relationship in an embodiment of the physiological signal measurement method of the present invention.
  • the headphone device can also read its own configured storage device to obtain the leakage system parameter mapping chart shown in Figure 10.
  • the horizontal axis of the leakage system parameter mapping chart is frequency f
  • the vertical axis is sound pressure level (SPL).
  • SPL sound pressure level
  • the headphone device further queries the leakage system parameter mapping chart based on the sound frequency and sound pressure parameters included in the calculated headphone frequency response to determine the leakage path outlet acoustic impedance R_Leak corresponding to the headphone frequency response from among the multiple reference leakage path outlet acoustic impedances included in the leakage system parameter mapping chart. It is understood that there are many ways for the headphone device to determine the leakage path outlet acoustic impedance R_Leak based on the headphone frequency response, and the process of obtaining the leakage path outlet acoustic impedance R_Leak of the present invention is not limited.
  • the acoustic system parameters further include conventional system parameters
  • the step of "determining the acoustic system parameters corresponding to the acoustic system" in step S20 may further include steps S203 to S204:
  • Step S203 Obtain headphone device size parameters and environmental information parameters
  • Step S204 Determine the conventional system parameters corresponding to the acoustic system based on the headphone device size parameters and the environmental information parameters.
  • the headphone device can also read its own configured storage device to obtain pre-stored headphone device size parameters and environmental information parameters. Then, the headphone device calculates the conventional system parameters corresponding to the acoustic system based on the headphone device size parameters and environmental information parameters.
  • the headphone device can also read its configured storage device to obtain headphone device size parameters containing the headphone device's own size information and the wearer's ear canal size information, and environmental information parameters containing the surrounding environment of the headphone device. Then, the headphone device reads the headphone device size parameters to determine the corresponding headphone front cavity volume parameters, and reads the environmental information parameters to determine the air density and sound velocity parameters around the headphone device. The headphone device then calculates the corresponding headphone front cavity acoustic volume C1 based on the headphone front cavity volume parameters, air density parameters, and sound velocity parameters.
  • the headphone device reads the headphone device size parameters to determine the corresponding headphone outlet length and outlet radius parameters, and reads the environmental information parameters to determine the air viscosity parameters around the headphone device, and calculates the corresponding headphone front cavity acoustic volume C1 based on the outlet length and outlet radius parameters.
  • the acoustic impedance R1 of the headphone outlet is calculated based on the number of air viscosity parameters.
  • the headphone device reads its size parameters to determine the length and area of its own outlet, and reads environmental information parameters to determine the air inertia around the headphone device. Based on the outlet length, area, and inertia parameters, the headphone outlet sound quality M1 is calculated.
  • the headphone device reads its size parameters to determine the preset average ear canal volume parameter, and reads environmental information parameters to determine the air density and sound velocity around the headphone device. Based on these parameters, the headphone device calculates the ear canal acoustic capacity C2 corresponding to the wearer's ear canal. Finally, the headphone device defines the headphone front cavity acoustic capacity C1, the headphone outlet acoustic impedance R1, the headphone outlet sound quality M1, and the ear canal acoustic capacity C2 as the conventional system parameters in the equivalent circuit model corresponding to the acoustic system.
  • the headphone device can calculate the conventional system parameters corresponding to the acoustic system by using the size parameters of the headphone device and the wearer's ear canal, as well as the environmental information of the headphone device.
  • Step S30 Generate a target air pressure signal based on the acoustic system parameters and the initial air pressure signal, and determine the physiological signals corresponding to the wearer based on the target air pressure signal;
  • the headphone device after acquiring the initial air pressure signal, the headphone device corrects the initial air pressure signal based on conventional system parameters and leakage system parameters to generate a target air pressure signal corresponding to the initial air pressure signal. The headphone device then extracts the signal features contained in the target air pressure signal and converts the signal features to determine the physiological signal corresponding to the wearer.
  • Figure 7 is a schematic diagram of resting heart rate waveform measurement data according to an embodiment of the physiological signal measurement method of the present invention.
  • the headphone device collects the initial air pressure signal in the wearer's ear canal, it corrects the initial air pressure signal according to the leakage path outlet acoustic impedance R_Leak and various conventional system parameters included in the leakage system parameters to generate a target air pressure signal corresponding to the initial air pressure signal without leakage to the external environment.
  • the headphone device extracts signal features such as peak values and time intervals contained in the target air pressure signal, and determines the number of peaks contained in the target air pressure signal according to each signal feature.
  • the headphone device determines the wearer's heart rate value according to the number of peaks and generates the resting heart rate waveform measurement data as shown in Figure 7. It is understood that there are many ways for the headphone device to determine the wearer's physiological parameters based on signal features, and the present invention does not limit this.
  • the headphone device corrects the distortion in the collected ear canal air pressure signal by using the system parameters contained in the analog equivalent circuit corresponding to the acoustic system, so as to obtain a target air pressure signal that can be used to detect physiological signals, and can obtain accurate physiological signals through the target air pressure signal.
  • step S30 "generating a target air pressure signal based on the acoustic system parameters and the initial air pressure signal," may specifically include steps S301 to S302:
  • Step S301 Determine the time-domain impact response parameters corresponding to the initial air pressure signal based on the acoustic system parameters
  • Step S302 Correct the initial air pressure signal according to the time-domain impact response parameters to generate the target air pressure signal.
  • the headphone device after acquiring the initial air pressure signal, the headphone device obtains a preset frequency transfer function. The headphone device then converts the parameters of each acoustic system based on the frequency transfer function to obtain time-domain impulse response parameters. Subsequently, the headphone device performs time-domain convolution on the acquired initial air pressure signal based on the time-domain impulse response parameters to obtain the corrected target air pressure signal.
  • the headphone device After acquiring the initial air pressure signal, the headphone device first obtains a preset frequency transfer function:
  • the headphone device then converts the parameters of each conventional system and each leakage system from the frequency domain to the time domain according to the frequency transfer function to obtain the time-domain impulse response. After that, the headphone device performs time-domain convolution between the time-domain impulse response and the initial air pressure signal to obtain the corrected target air pressure signal.
  • C1 in the above frequency transfer function represents the acoustic capacitance of the headphone's front cavity; similarly, C2 represents the acoustic capacitance of the ear canal; R1 represents the acoustic impedance of the headphone's output port; M1 represents the sound quality of the headphone's output port; and similarly, the acoustic impedance and sound quality of the leakage path output port are also included in the above frequency transfer function. The sound quality of the leakage path output port can be ignored.
  • the headphone device can also convert system parameters from the frequency domain to the time domain to obtain the time domain impulse response through the state-space method, impulse response invariance method, or bilinear transformation method. It is understood that the specific calculation process of converting system parameters from the frequency domain to the time domain to obtain the time domain impulse response based on the calculation process of the state-space method, impulse response invariance method, or bilinear transformation method is the prior art, so it will not be described in detail here.
  • the headphone device corrects the distortion in the acquired ear canal air pressure signal by using the system parameters contained in the analog equivalent circuit corresponding to the acoustic system, thereby obtaining a target air pressure signal that can be used to detect physiological signals and ensuring the accuracy of the target air pressure signal.
  • the headphone device when the headphone device needs to detect the wearer's physiological signals, it first detects whether the acoustic system composed of itself and the wearer's ear canal is in a sealed state that will not leak signals to the external environment. Then, the headphone device acquires a second sound signal used to detect the sealed state of the acoustic system, and processes the second sound signal to determine the corresponding acoustic system parameters. At the same time, the headphone device calls its configured air pressure detection module to collect the initial air pressure signal generated in the wearer's ear canal. Finally, the headphone device corrects the initial air pressure signal based on the conventional system parameters and leakage system parameters to generate a target air pressure signal corresponding to the initial air pressure signal. The headphone device then extracts the signal features contained in the target air pressure signal and converts the signal features to determine the wearer's corresponding physiological signals.
  • this invention solves the technical problem in related technologies where headphone devices cannot accurately acquire the wearer's physiological signals due to interference from external ambient light during the detection process.
  • this invention constructs an acoustic system consisting of a headphone device and the wearer's ear canal. When the acoustic system is not sealed, acoustic system parameters indicating the degree of signal leakage within the system are determined. These parameters are then used to correct the air pressure signal collected from the wearer's ear canal, caused by changes in the ear canal arteries. The wearer's physiological signals are then calculated from the corrected air pressure signal.
  • the method for measuring physiological signals of the present invention may further include steps A10 to A20:
  • Step A10 After detecting that the acoustic system is in a preset sealed state, the initial air pressure signal in the wearer's ear canal is collected through the air pressure detection module;
  • Step A20 Determine the wearer's corresponding physiological signals based on the initial air pressure signal.
  • the headphone device when the headphone device determines that the acoustic system consisting of the headphone device and the wearer's ear canal is in a sealed state, it directly calls its own configured air pressure detection module to collect the initial air pressure signal generated in the wearer's ear canal. Then, the headphone device extracts the signal features contained in the initial air pressure signal and converts the signal features contained in the initial air pressure signal to determine the wearer's corresponding physiological signal.
  • the headphone device determines that the acoustic system formed by itself and the wearer's ear canal is in a sealed state, it will determine that the air pressure signal generated in the wearer's ear canal will not leak to the external environment.
  • the headphone device directly calls its own configured barometer to collect the initial air pressure signal generated in the wearer's ear canal. Then, the headphone device can directly extract the signal features such as peak values and time intervals contained in the initial air pressure signal, and determine the number of peaks contained in the target air pressure signal based on each signal feature, and then determine the wearer's heart rate value based on the number of peaks.
  • the headphone device when the headphone device detects that the acoustic system formed by itself and the wearer's ear canal is in a sealed state, it can directly calculate the wearer's heart rate and other physiological information based on the collected ear canal air pressure signal, thereby further improving detection efficiency.
  • the physiological signal measurement method of the present invention may further include steps B10 to B20:
  • Step B10 Determine a preset physiological signal interval and determine whether the physiological signal is within the preset physiological signal interval
  • Step B20 If it is determined that the physiological signal is not within the preset physiological signal range, then a preset alarm message is output to the mobile terminal.
  • the preset physiological signal range is the range of values of the physiological signals when the wearer is in a healthy state.
  • the corresponding heart rate range is 60 beats/minute to 100 beats/minute. It is understood that the specific values of the preset physiological signal range can be set by the technician or the wearer, and the present invention does not limit this.
  • the earphone device can also read its own configured storage device to obtain a preset physiological signal range corresponding to the physiological signals. The earphone device then compares the physiological signals with the preset physiological signal range to determine whether the physiological signals are within the preset physiological signal range. If the earphone device determines that the physiological signals are not within the preset physiological signal range, it obtains preset alarm information and sends the alarm information to the mobile terminal connected to itself.
  • the headphone device after calculating the wearer's real-time heart rate, the headphone device reads the preset heart rate range of 60 beats/minute to 100 beats/minute from the storage device. The headphone device then compares the real-time heart rate with the preset heart rate range to determine whether the real-time heart rate is within the range of 60 beats/minute to 100 beats/minute. If the headphone device determines that the wearer's real-time heart rate is not within the range of 60 beats/minute to 100 beats/minute, it determines that the wearer has a potential health problem.
  • the headphone device when the headphone device detects that the wearer's real-time heart rate value is not within the preset heart rate range, it can also emit an alarm sound signal through the speaker to remind the wearer through the alarm sound signal.
  • the headphone device can promptly output alarm information to remind the wearer when it detects that the wearer's physiological signals are not within the preset physiological signal range.
  • the physiological signal measurement method of the present invention may further include step C10:
  • Step C10 Send the target air pressure signal to the mobile terminal so that the mobile terminal can determine the wearer's corresponding physiological signals based on the target air pressure signal.
  • the headphone device can also send the target air pressure signal to a mobile terminal connected to itself, so that the mobile terminal can determine the wearer's corresponding physiological signal based on the target air pressure signal.
  • the headphone device after the headphone device obtains the target air pressure signal, it can also send the target air pressure signal to the mobile terminal device held by the wearer through its own configured Bluetooth module.
  • the mobile terminal device can then extract the signal features such as peak values and time intervals contained in the target air pressure signal, determine the number of peaks contained in the target air pressure signal based on each signal feature, and then determine the wearer's heart rate value based on the number of peaks.
  • the headphone device can enable other mobile terminal devices to process the target air pressure signal, thereby leveraging the hardware advantages of mobile terminal devices to further improve the processing efficiency of physiological signals.
  • the headphone device Before detecting the wearer's physiological signals, the headphone device first converts the acoustic system between itself and the wearer's ear canal into an equivalent circuit model. At the same time, the headphone device reads its own configured storage device to obtain headphone device size parameters containing headphone device size information and ear canal size information, as well as environmental information parameters corresponding to the environment in which the headphone device is located. The headphone device then calculates conventional system parameters such as the acoustic capacitance of the headphone front cavity, the acoustic impedance of the headphone outlet, the sound quality of the headphone outlet, and the acoustic capacitance of the ear canal contained in the equivalent circuit model based on the headphone device size parameters and environmental information parameters.
  • the headphone device emits a first sound signal into the wearer's ear canal through its own speaker, and collects a second sound signal formed during the transmission of the first sound signal through its own microphone.
  • the headphone device compares the second sound signal with a preset standard sound signal to obtain a first comparison result. If the first comparison result indicates that the second sound signal and the standard sound signal are not completely consistent, or if the signal difference between the second sound signal and the standard sound signal is greater than or equal to a preset range, it is determined that the second sound signal and the standard sound signal are mismatched, and thus it is determined that there is a leakage path in the acoustic system formed between the headphone device and the wearer's ear canal.
  • the headphone device determines that the first comparison result indicates that the second sound signal and the standard sound signal are completely consistent, or if the signal difference between the second sound signal and the standard sound signal is less than a preset range, it is determined that the second sound signal and the standard sound signal are matched, and thus it is determined that there is no leakage path in the acoustic system formed between the headphone device and the wearer's ear canal.
  • the headphone device detects a leakage channel in the acoustic system, it extracts the sound signal features of the second sound signal and determines the headphone frequency response corresponding to the acoustic system in which the headphone device is currently located based on the sound signal features.
  • the headphone device obtains the preset frequency response of the acoustic system in a sealed state and compares the headphone frequency response with the preset frequency response. Based on the comparison result, it obtains leakage system parameters that can indicate the degree of signal leakage in the acoustic system.
  • the headphone device calls its own configured barometer to collect the initial air pressure signal in the wearer's ear canal and corrects the initial air pressure signal according to the leakage system parameters to obtain the target air pressure signal.
  • the headphone device extracts the signal features contained in the target air pressure signal and calculates the wearer's physiological signals based on the signal features.
  • the headphone device compares the calculated physiological signal with the preset physiological signal range and determines whether the physiological signal is within the physiological signal range. If it determines that the physiological signal is not within the physiological signal range, it sends an alarm message and detection result to the mobile terminal device connected to it, so as to remind the wearer through the mobile terminal device.
  • the headphone device determines that there is no leakage channel in the acoustic system, it directly calls its own barometer to collect the initial air pressure signal in the wearer's ear canal, extracts the signal features contained in the initial air pressure signal, and calculates the wearer's physiological signals based on the signal features.
  • the present invention provides an earphone device, the earphone device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the physiological signal measurement method in Embodiment 1 above.
  • the headphone device in embodiments of the present invention may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers.
  • mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers.
  • PDAs Personal Digital Assistants
  • PADs Portable Application Descriptions
  • PMPs Portable Media Players
  • in-vehicle terminals e.g., in-vehicle navigation terminals
  • fixed terminals such as digital TVs and desktop computers.
  • the headphone device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004.
  • the RAM 1004 also stores various programs and data required for the operation of the headphone device.
  • the processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005.
  • An input/output (I/O) interface 1006 is also connected to the bus.
  • I/O interface 1006 input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009.
  • Communication device 1009 allows the headphone device to communicate wirelessly or wiredly with other devices to exchange data.
  • embodiments of this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts.
  • the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002.
  • processing device 1001 it performs the functions defined in the methods of the embodiments disclosed in this invention.
  • the earphone device provided by this invention employing the physiological signal measurement method described in the above embodiments, solves the technical problem in related technologies where earphone devices cannot accurately acquire the wearer's physiological signals due to interference from ambient light during the detection process.
  • the beneficial effects of the earphone device provided by this invention are the same as those of the physiological signal measurement method provided in the above embodiments, and other technical features of this earphone device are the same as those disclosed in the previous embodiment method, and will not be repeated here.
  • the present invention provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to perform the physiological signal measurement method in the above embodiments.
  • computer-readable program instructions i.e., a computer program
  • the computer-readable storage medium provided by this invention may be, for example, a USB flash drive, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.
  • the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device.
  • the program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.
  • the aforementioned computer-readable storage medium may be included in the headphone device; or it may exist independently and not assembled into the headphone device.
  • the aforementioned computer-readable storage medium carries one or more programs that, when executed by the headphone device, cause the headphone device to: output a first sound signal and receive a second sound signal corresponding to the first sound signal within an acoustic system, wherein the acoustic system is an acoustic system composed of the headphone device and the wearer's ear canal;
  • the acoustic system is determined to be in a preset sealed state based on the second sound signal.
  • the acoustic system parameters corresponding to the acoustic system are determined based on the second sound signal
  • the air pressure detection module acquires the initial air pressure signal in the wearer's ear canal and generates a target air pressure signal based on the acoustic system parameters and the initial air pressure signal.
  • the wearer's corresponding physiological signals are determined based on the target air pressure signal.
  • Computer program code for performing the operations of this invention can be written in one or more programming languages or a combination thereof. These programming languages include object-oriented programming languages—such as Java, Smalltalk, and C++—and conventional procedural programming languages—such as the "C" language or similar programming languages.
  • the program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server.
  • the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).
  • LAN local area network
  • WAN wide area network
  • each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function.
  • the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved.
  • each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.
  • the modules described in the embodiments of the present invention can be implemented in software or hardware.
  • the names of the modules do not necessarily limit the specific unit itself.
  • the readable storage medium provided by this invention is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described physiological signal measurement method.
  • computer-readable program instructions i.e., a computer program
  • the beneficial effects of the computer-readable storage medium provided by this invention are the same as those of the physiological signal measurement method provided in the above embodiments, and will not be elaborated upon here.
  • the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the physiological signal measurement method described above.
  • the computer program product provided by this invention can solve the technical problem in related technologies where headphone devices cannot accurately acquire the wearer's physiological signals during detection due to interference from ambient light. Compared with the prior art, the beneficial effects of the computer program product provided by this invention are the same as those of the physiological signal measurement method provided in the above embodiments, and will not be repeated here.

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Abstract

本发明公开了一种生理信号的测量方法、耳机设备、存储介质及计算机产品，涉及耳机技术领域，本发明生理信号的测量方法应用于配置有气压检测模块的耳机设备，具体包括：检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号。采用本发明达到了令耳机设备能够准确检测佩戴者的生理信号的技术效果。

Description

生理信号的测量方法、耳机设备、存储介质及计算机产品
本申请要求于2024年5月09日提交中国专利局、申请号为202410566740.5、发明名称为“生理信号的测量方法、耳机设备、存储介质及计算机产品”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及耳机技术领域，尤其涉及一种生理信号的测量方法、耳机设备、存储介质及计算机程序产品。
背景技术
随着耳机技术的不断发展，耳机设备成为了人们在日常生活中不可缺少的重要设备。在相关技术中，技术人员会在耳机设备上配置心率传感器，从而由心率传感器利用PPG(Photoplethysmography，光电容积脉搏波描记法)技术检测佩戴者的心率、血压等生理信号。然而，在耳机设备采用上述方式对佩戴者的生理信号进行检测的过程中，其控制心率传感器发射的光线容易受到外界环境光的干扰，进而无法准确获取佩戴者的生理信号。因此，如何更准确的获取佩戴人员的生理信号，也就成为了行业内亟需解决的技术问题。
发明内容
本发明的主要目的在于提供一种生理信号的测量方法、耳机设备、存储介质及计算机程序产品，旨在解决相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题。为实现上述目的，本发明提出一种生理信号的测量方法，所述生理信号的测量方法应用于配置有气压检测模块的耳机设备，所述生理信号的测量方法包括：
检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号。
在一实施例中，所述检测所述耳机设备对应的声学系统是否处于预设的密闭状态的步骤，包括：
输出第一声音信号，并接收所述第一声音信号在所述耳机设备对应的声学系统内对应的第二声音信号；根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态。
在一实施例中，所述根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态的步骤，包括：
确定预设的标准声音信号，并将所述第二声音信号和所述标准声音信号进行比对得到第一比对结果；在所述第一比对结果为所述第二声音信号和所述标准声音信号匹配时，确定所述声学系统处于预设的密闭状态；在所述第一比对结果为所述第二声音信号和所述标准声音信号不匹配时，确定所述声学系统未处于所述密闭状态。
在一实施例中，在所述根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态的步骤之后，所述方法还包括：
在检测到所述声学系统处于预设的密闭状态后，通过所述气压检测模块采集所述佩戴者耳道内的初始气压信号；基于所述初始气压信号确定佩戴者对应的生理信号。
在一实施例中，所述声学系统参数包含泄漏系统参数，所述确定所述声学系统对应的声学系统参数的步骤，包括：
提取所述第二声音信号内包含的各声音信号特征，并根据各所述声音信号特征确定所述第二声音信号对应的耳机频率响应；根据所述耳机频率响应确定所述声学系统对应的泄漏系统参数。
在一实施例中，所述根据所述耳机频率响应确定所述声学系统对应的泄漏系统参数的步骤，包括：
获取预设的多个基准频率响应，和多个所述基准频率响应各自对应的基准系统参数；根据所述耳机频率响应在多个所述基准频率响应中确定目标频率响应；将所述目标频率响应对应的基准系统参数确定为所述声学系统对应的泄漏系统参数。
在一实施例中，所述声学系统参数还包含常规系统参数，所述确定所述声学系统对应的声学系统参数的步骤，还包括：
获取耳机设备尺寸参数和环境信息参数；根据所述耳机设备尺寸参数和所述环境信息参数确定所述声学系统对应的常规系统参数。
在一实施例中，所述根据所述声学系统参数和所述初始气压信号生成目标气压信号的步骤，包括：
根据所述声学系统参数确定所述初始气压信号对应的时域冲击响应参数；根据所述时域冲击响应参数对所述初始气压信号进行修正以生成目标气压信号。
在一实施例中，所述耳机设备和移动终端通信连接，在所述基于所述目标气压信号确定佩戴者对应的生理信号的步骤之后，所述方法还包括：
确定预设生理信号区间，并判断所述生理信号是否处于所述预设生理信号区间内；若判断到所述生理信号未处于所述预设生理信号区间内，则输出预设的警报信息至所述移动终端。
在一实施例中，在所述根据所述声学系统参数和所述初始气压信号生成目标气压信号的步骤之后，所述方法还包括：
将所述目标气压信号发送至移动终端，以供所述移动终端基于所述目标气压信号确定佩戴者对应的生理信号。
此外，为实现上述目的，本发明还提出一种耳机设备，所述设备包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序配置为实现如上文所述的生理信号的测量方法的步骤。
此外，为实现上述目的，本发明还提出一种存储介质，所述存储介质为计算机可读存储介质，所述存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上文所述的生理信号的测量方法的步骤。
此外，为实现上述目的，本发明还提供一种计算机程序产品，所述计算机程序产品包括计算机程序，所述计算机程序被处理器执行时实现如上文所述的生理信号的测量方法的步骤。
本发明提出的生理信号的测量方法，应用于配置有气压检测模块的耳机设备，检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号。
在本实施例中，耳机设备在需要检测佩戴者的生理信号时，首先检测耳机设备和佩戴者耳道组成的声学系统是否处于不会向外界环境泄露信号的密闭状态，之后，耳机设备若检测到耳机设备所在的声学系统没有处于密闭状态，则确定声学系统对应的声学系统参数，并调用自身所配置的气压检测模块采集佩戴者耳道内的初始气压信号，最后，耳机设备根据声学系统参数对初始气压信号进行修正以生成目标气压信号，进而基于生成的目标气压信号确定佩戴者对应的生理信号。
如此，本发明解决了相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题，即，本发明通过由耳机设备和佩戴者耳道组成声学系统，并在确定声学系统没有处于密闭状态时，确定用于表明声学系统内的信号泄漏程度的声学系统参数，从而根据声学系统参数对佩戴者耳道内采集到的由耳道内动脉变化引起的气压信号进行修正，并根据修正后气压信号推算出佩戴者的生理信号，使得耳机设备在无需使用PPG技术的情况下也可以获取佩戴者的生理信号，进而确保了耳机设备在对佩戴者进行检测过程中不会受到外界环境光干扰，达到了令耳机设备能够准确检测佩戴者的生理信号的技术效果。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明生理信号的测量方法实施例一提供的流程示意图；
图2为本发明生理信号的测量方法一实施例涉及的声学系统的密闭状态示意图；
图3为本发明生理信号的测量方法一实施例涉及的声学系统的非密闭状态示意图；
图4为本发明生理信号的测量方法一实施例涉及的声学系统的等效电路模型示意图；
图5为本发明生理信号的测量方法一实施例涉及的初始气压信号示意图；
图6为本发明生理信号的测量方法一实施例涉及的目标气压信号示意图；
图7为本发明生理信号的测量方法一实施例涉及的静息心率波形测量数据示意图；
图8为本发明实施例中生理信号的测量方法涉及的硬件运行环境的设备结构示意图；
图9为本发明生理信号的测量方法一实施例涉及的耳机设备的详细结构示意图；
图10为本发明生理信号的测量方法一实施例涉及的泄漏系统参数映关系示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
在本实施例中，为便于表述，以下以如图9所示，内部配置有麦克风、气压计、蓝牙平台、扬声器及天线的耳机设备为执行主体进行阐述，并在此提出本发明生理信号的测量方法的整体构思。
随着耳机技术的不断发展，耳机设备成为了人们在日常生活中不可缺少的重要设备。在相关技术中，技术人员会在耳机设备上配置心率传感器，从而由心率传感器利用PPG(Photoplethysmography，光电容积脉搏波描记法)技术检测佩戴者的心率、血压等生理信号。然而，在耳机设备采用上述方式对佩戴者的生理信号进行检测的过程中，其控制心率传感器发射的光线容易受到外界环境光的干扰，进而无法准确获取佩戴者的生理信号。
针对以上现象，本发明提供一种生理信号的测量方法，所述生理信号的测量方法应用于配置有气压检测模块的耳机设备，所述生理信号的测量方法包括：检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号。
如此，本发明解决了相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题，即，本发明通过由耳机设备和佩戴者耳道组成声学系统，并在确定声学系统没有处于密闭状态时，确定用于表明声学系统内的信号泄漏程度的声学系统参数，从而根据声学系统参数对佩戴者耳道内采集到的由耳道内动脉变化引起的气压信号进行修正，并根据修正后气压信号推算出佩戴者的生理信号，使得耳机设备在无需使用PPG技术的情况下也可以获取佩戴者的生理信号，进而确保了耳机设备在对佩戴者进行检测过程中不会受到外界环境光干扰，达到了令耳机设备能够准确检测佩戴者的生理信号的技术效果。
基于此，本发明实施例提供了一种生理信号的测量方法，所述生理信号的测量方法应用于配置有气压检测模块的耳机设备；参照图1，图1为本发明生理信号的测量方法第一实施例的流程示意图。
本实施例中，所述生理信号的测量方法包括步骤S10～S30：
步骤S10：检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；
需要说明的是，请参照图2和图3，其中，图2为本发明生理信号的测量方法一实施例涉及的声学系统的密闭状态示意图，图3为本发明生理信号的测量方法一实施例涉及的声学系统的非密闭状态示意图，密闭状态为声学系统不会向外界环境泄漏各类信号的状态，可以理解的是，当耳机设备和佩戴者耳道之间组成的声学系统在处于如图3所述的非密闭状态时，由于泄漏通道的存在，佩戴者耳道内部产生的气压信号会存在泄漏至外界环境的情况，进而导致佩戴者耳道中的气压信号会与在如图2所示的密闭状态下采集到的气压信号之间存在较大差异，进而导致耳机设备基于气压信号推算得到的生理信号也就存在较大差异。
在本实施例中，耳机设备在需要检测佩戴者的生理信号时，首先检测自身和佩戴者耳道组成的声学系统是否处于不会向外界环境泄漏信号的密闭状态。
示例性地，例如，耳机设备在需要检测佩戴者的心率信号时，首先判断自身和佩戴者耳道之间是否完全贴合，并进一步确定耳机设备和佩戴者耳道之间组成的声学系统是否处于不会向外界环境泄漏信号的密闭状态。
如此，耳机设备能够判断出耳机设备自身和佩戴者耳道之间是否完全贴合，进而能够确定声学系统是否处于不会向外界环境泄漏信号的密闭状态。
在一种可行的实施方式中，步骤S10，可以包括步骤S101～S102：
步骤S101：输出第一声音信号，并接收所述第一声音信号在所述耳机设备对应的声学系统内对应的第二声音信号；
步骤S102：根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态。
需要说明的是，第一声音信号为用于测试耳机设备和佩戴者耳道组成的声学系统是否存在向外界环境泄漏信号的特定声音信号，第一声音信号具体可以为：扫频信号、伪随机信号或噪声信号等声音信号中的任意一种，此外，第二声音信号为耳机设备通过自身所配置的麦克风采集到的声音信号。
在本实施例中，耳机设备在需要检测佩戴者的生理信号时，首先向佩戴者耳道内输出用于检测耳机设备和佩戴者耳道之间组成的声学系统是否会向外界泄漏信号的第一声音信号，并接收第一声音信号在声学系统内传播时经过削弱后产生的第二声音信号，之后，耳机设备基于第二声音信号判断耳机设备和佩戴者耳道组成的声学系统是否处于不会向外界环境泄漏信号的密闭状态。
示例性地，例如，耳机设备在需要检测佩戴者的心率信号时，首先通过自身所配置的扬声器向佩戴者耳道内输出一个用于测试耳机设备和佩戴者耳道组成的声学系统是否会向外界环境泄漏信号的第一噪音信号，同时，耳机设备通过自身所配置的麦克风接收第一噪音信号在声学系统内传递时，经过削弱后变化得到的第二噪音信号P_earbuds，之后，耳机设备根据接收到的第二噪音信号P_earbuds判断耳机设备和佩戴者耳道之间是否完全贴合，并进一步确定耳机设备和佩戴者耳道之间组成的声学系统是否处于不会向外界环境泄漏信号的密闭状态。
如此，耳机设备能够向佩戴者耳道内发射用于检测声学系统是否处于密闭状态的第一声音信号，并能够接收该第一声音信号在经过变化后产生的第二声音信号，进而能够根据第二声音信号判断声学系统是否处于不会向外界环境泄漏信号的密闭状态。
在一种可行的实施方式中，步骤S102，可以包括步骤S1021～S1023：
步骤S1021：确定预设的标准声音信号，并将所述第二声音信号和所述标准声音信号进行比对得到第一比对结果；
步骤S1022：在所述第一比对结果为所述第二声音信号和所述标准声音信号匹配时，确定所述声学系统处于预设的密闭状态；
步骤S1023：在所述第一比对结果为所述第二声音信号和所述标准声音信号不匹配时，确定所述声学系统未处于所述密闭状态。
需要说明的是，标准声音信号为第一声音信号在声学系统内传播时，没有向外界环境泄漏任何声音信号的情况下，即，仅经过衰弱等变化后，被麦克风采集到的声音信号；可以理解的是，标准声音信号可以被存储在耳机设备自身所配置的存储装置内，以供耳机设备在需要时通过读取存储装置的方式获取该标准声音信号，或者，标准声音信号也可以被存储在第三方服务器上，以供耳机设备在需要时通过访问第三方服务器获取该标准声音信号；此外，需要说明的是，标准声音信号由技术人员在实验室条件下通过耳机设备进行实验得到，也可以由技术人员根据耳机设备的尺寸参数和实验用耳道的耳道尺寸参数计算得到，可以理解的是，标准声音信号的获取方式有很多，本发明对此不作限制。
在本实施例中，耳机设备在接收到第一声音信号对应的第二声音信号之后，首先读取自身所配置的存储装置，以获取在预设的密闭状态下第一声音信号对应的标准声音信号，耳机设备进而将第二声音信号和标准声音信号进行比对以得到第一比对结果，之后，耳机设备在确定第一比对结果为第二声音信号和标准声音信号匹配时，确定耳机设备和佩戴者耳道组成的声学系统处于不会向外界泄漏声音信号的密闭状态；而耳机设备在确定第一比对结果为第二声音信号和标准声音信号不匹配时，确定耳机设备和佩戴者耳道组成的声学系统没有处于密闭状态。
示例性地，例如，耳机设备在通过麦克风装置接收到第一噪音信号在佩戴者耳道内产生的第二噪音信号P_earbuds之后，首先读取自身所配置的存储装置，以获取存储装置内存储的第一噪音信号在声学系统处于密闭状态时，在佩戴者耳道内产生的标准噪音信号，耳机设备进而将获取的第二噪音信号P_earbuds和标准噪音信号进行比对，从而根据第二噪音信号P_earbuds和标准噪音信号是否一致生成第一比对结果，之后，耳机设备在判断到第二噪音信号P_earbuds和标准噪音信号匹配时，确定第一噪音信号没有向外界环境泄漏信号，进而确定耳机设备和佩戴者耳道处于完全贴合状态，并确定佩戴者耳道和耳机设备之间组成的声学系统处于密闭状态；而耳机设备在判断到第二噪音信号P_earbuds和标准噪音信号不匹配时，确定第一噪音信号有部分噪音信号通过耳机设备和佩戴者耳道之间存在的泄漏通道流入了外界环境，进而确定耳机设备和佩戴者耳道没有处于完全贴合状态，并确定声学系统没有处于密闭状态。
需要说明的是，在本实施例及另一实施例中，耳机设备可以确定第二噪音信号P_earbuds和标准噪音信号之间产生的信号差值，并在该信号差值小于一定预设范围时，确定第二噪音信号P_earbuds和标准噪音信号之间匹配，而在该信号差值大于或等于预设范围时，确定第二噪音信号P_earbuds和标准噪音信号之不匹配；此外，在本实施例及另一实施例中耳机设备还可以在第二噪音信号P_earbuds和标准噪音信号之间完全一致时，确定第二噪音信号P_earbuds和标准噪音信号之间匹配，而在第二噪音信号P_earbuds和标准噪音信号之间不完全一致时，确定第二噪音信号P_earbuds和标准噪音信号之间不匹配；可以理解是，耳机设备判断第二噪音信号P_earbuds和标准噪音信号之间是否匹配的方式有很多种，本发明对此不作限制。
如此，终端设备通过标准声音信号能够确定第二噪音信号的泄漏程度，并根据第二噪音信号的泄漏程度能够判断出耳机设备和佩戴者耳道之间是否完全贴合，进而能够确定声学系统是否处于不会向外界环境泄漏信号的密闭状态。
此外，需要说明的是，在本实施例及另一实施例中，耳机设备除了可以通过第二声音信号来判断声学系统是否处于密闭状态之外，还可以通过预设的耳机设备参数，和佩戴者输入的耳道参数进行计算，以根据计算结果判断耳机设备和佩戴者耳道是否完全贴合，进而确定声学系统是否处于密闭状态，可以理解的是，耳机设备根据耳机设备参数和耳道参数判断声学系统是否处于密闭状态的计算方式有很多，本发明对此不作限制。
步骤S20：在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；
需要说明的是，声学系统参数为能够表明声学系统中的信号泄漏程度的参数，可以理解的是，请参照图4，图4为本发明生理信号的测量方法一实施例涉及的声学系统的等效电路模型示意图，由耳机设备和佩戴者耳道组成耳道声学系统能够等效为如图4所示包括：耳机单体与后腔声系统的等效声阻抗Z1、耳机前腔声容C1、耳机出声口声阻R1、耳机出声口声质量M1、耳道声容C2、泄漏路径出声口声阻R_Leak及泄漏路径出声口声质量M_Leak等多个声学系统参数在内的等效电路模型，其中，耳机单体与后腔声系统的等效声阻抗Z1为能够表明耳机设备内的耳机单体和耳机后腔分别对声音信号的阻碍特性的参数，同样的，耳机前腔声容C1为能够表明耳机前腔部分对于声音传播、共振和音质表现调控作用的参数，同样的，耳道声容C2而能够表明佩戴者耳道对于声音传播、共振和音质表现调控作用的参数，同样的，耳机出声口声阻R1为能够表明耳机设备的出声口对于电流的阻碍程度的参数，同样的，泄漏路径出声口声阻R_Leak为能够表明耳机设备和佩戴者耳道之间形成的泄漏通道对于电流的阻碍程度的参数，同样的，耳机出声口声质量M1为能够表明耳机设备的出声口能够推动的空气质量，同样的，泄漏路径出声口声质量M_Leak为能够表明泄漏通道能够推动的空气质量。可以理解的是，通过将耳机设备和佩戴者耳道组成的声学系统转换为如图4所示的等效电路模型，能够更直观的检测出声音信号在声学系统内的泄漏程度。此外，需要说明的是，在上述等效电路模型内，由于泄漏路径出声口声质量M_Leak参数对信号的泄漏作用远小于泄漏路径出声口声阻R_Leak参数，因此，泄漏路径出声口声质量M_Leak参数可以忽略不计。
此外，气压信号为佩戴者耳道附近动脉变化过程中导致耳道腔体积变化时，在耳道内部引起的低频率气压信号；可以理解的是，请参照图5和图6，其中，图5为本发明生理信号的测量方法一实施例涉及的初始气压信号示意图，图6为本发明生理信号的测量方法一实施例涉及的目标气压信号示意图，当声学系统存在泄漏时，气压计获取的初始气压信号内会如图5所示，存在明显的畸变，因此，需要基于声学系统的泄漏系统参数对初始气压信号进行修正，从而生成如图6所示不包含畸变的目标气压信号。
在本实施例中，耳机设备在检测到自身和佩戴者耳道组成的声学系统没有处于不会向外界环境泄漏信号的密闭状态时，耳机设备获取用于检测声学系统的密闭状态的第二声音信号，并对第二声音信号进行处理以确定声学系统对应的各声学系统参数，同时，耳机设备调用自身所配置的气压检测模块采集佩戴者耳道内产生的初始气压信号。
示例性地，例如，耳机设备在检测到自身和佩戴者耳道组成的声学系统没有处于不会向外界环境泄漏信号的密闭状态时，耳机设备提取用于检测声学系统的密闭状态的第二声音信号P_earbuds，并提取第二声音信号P_earbuds内包含的各声音信号特征，终端设备从而根据各声音信号特征确定第二声音信号P_earbuds的信号泄漏程度，从而根据信号泄漏程度确定自身所在的声学系统对应的等效电路模型内包含的各声学系统参数，同时，耳机设备调用自身所配置的气压计采集佩戴者耳道内由于耳道附近动脉变化而引起的初始气压信号。
如此，耳机设备通过提取第二声音信号的声音信号特征能够确定第二声音信号在传播过程中对应的泄漏程度，进而确定能够表明自身所在的声学系统的信号泄漏程度的声学系统参数，并采集佩戴者耳道内产生的初始气压信号。
在一种可行的实施方式中，所述声学系统参数包含泄漏系统参数，步骤S20中“确定所述声学系统对应的声学系统参数”的步骤，可以包括步骤S201～S202：
步骤S201：提取所述第二声音信号内包含的各声音信号特征，并根据各所述声音信号特征确定所述第二声音信号对应的耳机频率响应；
步骤S202：根据所述耳机频率响应确定所述声学系统对应的泄漏系统参数。
需要说明的是，频率响应是指声学系统在接收到音频信号时，其产生的声压随频率变化的关系。
在本实施例中，耳机设备在确定声学系统没有处于密闭状态时，提取用于检测声学系统的密闭状态的第二声音信号内包含的各声音信号特征，并根据各声音信号特征确定第二声音信号对应的耳机频率响应，之后，耳机设备根据耳机频率响应确定声学系统对应的泄漏系统参数。
示例性地，例如，耳机设备在确定声学系统没有处于密闭状态时，通过FFT(Fast Fourier Transformation，快速傅里叶变换)算法对获取的第二噪音信号P_earbuds进行处理，从而得到第二噪音信号P_earbuds内包含的各声音信号特征，耳机设备进而基于各声音信号特征获取此时耳机设备对应的耳机频率响应，之后，耳机设备读取自身所配置的存储装置以获取预先存储的声学系统在不同密闭状态下分别对应的泄漏系统参数，从而根据耳机频率响应在各泄漏系统参数中筛选出声学系统对应的等效电路模型内包含的泄漏路径出声口声阻R_Leak参数。
如此，耳机设备通过提取第二声音信号的声音信号特征能够确定第二声音信号在传播过程中对应的泄漏程度，进而确定能够表明自身所在的声学系统的信号泄漏程度的声学系统参数。
在一种可行的实施方式中，步骤S202，具体可以包括步骤S2021～S2023：
步骤S2021：获取预设的多个基准频率响应，和多个所述基准频率响应各自对应的基准系统参数；
步骤S2022：根据所述耳机频率响应在多个所述基准频率响应中确定目标频率响应；
步骤S2023：将所述目标频率响应对应的基准系统参数确定为所述声学系统对应的泄漏系统参数。
需要说明的是，多个基准频率响应为存在不同大小的泄漏通道的多个声学系统，各自在采集到的第二声音信号时的频率响应参数；此外，基准系统参数为声学系统在基准频率响应下，能够得到准确的压力信号时所需要的泄漏系统参数，多个基准频率响应和各自对应的基准系统参数可以由技术人员在实验室条件下进行实验得到，本发明对基准频率响应和基准系统参数的获取方式不作限制。
在本实施例中，耳机设备在提取得到第二声音信号对应的耳机频率响应之后，还可以读取存储装置获取声学系统对应的多个基准频率响应，之后，耳机设备将耳机频率响应和多个基准频率响应依次进行比对，从而在多个基准频率响应中确定和耳机频率响应一致的目标频率响应，最后，耳机设备确定目标频率响应对应的基准系统参数，并将目标频率响应对应的基准系统参数确定为声学系统对应的泄漏系统参数。
示例性地，例如，耳机设备在提取得到第二声音信号对应的耳机频率响应之后，还可以读取存储装置获取预先存储的包含有不同尺寸的泄漏通道的多个声学系统，各自在采集到第二声音信号时对应的基准频率响应，和多个基准频率响应各自对应的基准泄漏路径出声口声阻，之后，耳机设备将耳机频率响应和多个基准频率响应依次进行比对，从而在多个基准频率响应中确定和耳机频率响应一致的目标频率响应，最后，耳机设备将目标频率响应对应的基准泄漏路径出声口声阻确定为声学系统对应的泄漏路径出声口声阻R_Leak。
如此，耳机设备通过耳机设备当前的耳机频率响应能够在多个基准中筛选出和耳机设备当前所处的声学系统对应的泄漏系统参数。
此外，请参照图10，图10为本发明生理信号的测量方法一实施例涉及的泄漏系统参数映关系示意图，在本实施例及另一实施例中，耳机设备在得到耳机频率响应之后，还可以读取自身所配置的存储装置以获取如图10所示的泄漏系统参数映射图表，其中，泄漏系统参数映射图表内的横坐标轴为频率f，纵坐标轴为声压级(Sound Pressure Level，SPL)，该泄漏系统参数映射图表能够表明耳机频率响应和基准泄漏路径出声口声阻之间映射关系；之后，耳机设备进而根据计算得到的耳机频率响应内包含的声音频率和声压参数查询泄漏系统参数映射图表，以在泄漏系统参数映射图表内包含的多个基准泄漏路径出声口声阻中确定和耳机频率响应对应的泄漏路径出声口声阻R_Leak。可以理解的是，耳机设备基于耳机频率响应确定泄漏路径出声口声阻R_Leak的方式有很多，本发明泄漏路径出声口声阻R_Leak的获取过程不作限制。
在一种可行的实施方式中，所述声学系统参数还包含常规系统参数，步骤S20中“确定所述声学系统对应的声学系统参数”的步骤，还可以包括步骤S203～S204：
步骤S203：获取耳机设备尺寸参数和环境信息参数；
步骤S204：根据所述耳机设备尺寸参数和所述环境信息参数确定所述声学系统对应的常规系统参数。
在本实施例中，耳机设备在得到泄漏系统参数之后，还可以读取自身所配置的存储装置以获取预先存储的耳机设备尺寸参数和环境信息参数，之后，耳机设备根据耳机设备尺寸参数和环境信息参数计算得到确定声学系统对应的常规系统参数。
示例性地，例如，耳机设备在确定泄漏路径出声口声阻R_Leak、泄漏路径出声口声质量M_Leak之后，还可以读取自身所配置的存储装置，以获取包含耳机设备自身尺寸信息和佩戴者耳道尺寸信息的耳机设备尺寸参数，和包含耳机设备所处周围环境内的环境信息参数，之后，耳机设备读取耳机设备尺寸参数以确定耳机设备自身对应的耳机前腔体积参数，和读取环境信息参数确定耳机设备周围的空气密度参数和声速参数，耳机设备进而基于耳机前腔体积参数、空气密度参数和声速参数计算得到耳机设备对应的耳机前腔声容C1；同时，耳机设备读取耳机设备尺寸参数以确定耳机设备自身对应的出声口长度参数和出声口半径参数，和读取环境信息参数确定耳机设备周围的空气粘度参数，并根据出声口长度参数、出声口半径参数及空气粘度参数计算得到耳机设备对应的耳机出声口声阻R1；同时，耳机设备读取耳机设备尺寸参数以确定耳机设备自身对应的出声口长度参数和出声口面积参数，和读取环境信息参数确定耳机设备周围的空气惯性参数，并根据出声口长度参数、出声口面积参数及空气惯性参数计算得到耳机设备对应的耳机出声口声质量M1；同时，耳机设备读取耳机设备尺寸参数以确定预设的用户平均耳腔体积参数，和读取环境信息参数确定耳机设备周围的空气密度参数和声速参数，耳机设备进而基于用户平均耳腔体积参数、空气密度参数和声速参数计算得到佩戴者耳道对应的耳道声容C2，耳机设备进而将耳机前腔声容C1、耳机出声口声阻R1、耳机出声口声质量M1及耳道声容C2确定为声学系统对应的等效电路模型中的常规系统参数。
如此，耳机设备通过耳机设备和佩戴者耳道的尺寸参数，及耳机设备所处的环境信息能够计算出声学系统对应的常规系统参数。
步骤S30：根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号；
在本实施例中，耳机设备在获取初始气压信号之后，基于常规系统参数和泄漏系统参数对初始气压信号进行修正，从而生成和初始气压信号对应的目标气压信号，耳机设备进而提取目标气压信号包含的信号特征，并对该信号特征进行转换从而确定佩戴者对应的生理信号。
示例性地，例如，请参照图7，图7为本发明生理信号的测量方法一实施例涉及的静息心率波形测量数据示意图，耳机设备在采集到佩戴者耳道内的初始气压信号之后，根据泄漏系统参数中包含的泄漏路径出声口声阻R_Leak和各常规系统参数对初始气压信号进行修正，以生成初始气压信号在未向外界环境泄漏气压信号的情况下，对应的目标气压信号，耳机设备进而提取目标气压信号内包含的峰值、时间间隔等信号特征，并根据各信号特征确定目标气压信号内包含的波峰数量，进而根据波峰数量确定佩戴者的心率值，并生成如图7所示的静息心率波形测量数据。可以理解的是，耳机设备根据信号特征确定佩戴者的生理参数的推算方式有很多，本发明对此不作限制。
如此，耳机设备通过与声学系统对应的模拟等效电路内包含的各系统参数，对采集到的耳道气压信号内存在的畸变进行修正，得到能够用于检测生理信号的目标气压信号，并能够通过目标气压信号得到准确的生理信号。
在一种可行的实施方式中，步骤S30中“根据所述声学系统参数和所述初始气压信号生成目标气压信号”的步骤，具体可以包括步骤S301～S302：
步骤S301：根据所述声学系统参数确定所述初始气压信号对应的时域冲击响应参数；
步骤S302：根据所述时域冲击响应参数对所述初始气压信号进行修正以生成目标气压信号。
在本实施例中，耳机设备在采集得到初始气压信号之后，获取预设的频率传递函数，耳机设备从而基于频率传递函数对各声学系统参数进行转换得到时域冲击响应参数，之后，耳机设备基于时域冲击响应参数对采集到的初始气压信号进行时域卷积从而得到修正后的目标气压信号。
示例性地，例如，耳机设备在采集得到初始气压信号之后，首先获取预设的频率传递函数：
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耳机设备从而根据频率传递函数将各常规系统参数和各泄漏系统参数从频域转换到时域以得到时域冲击响应，之后，耳机设备将时域冲击响应和初始气压信号进行时域卷积，从而得到修正后的目标气压信号。
需要说明的是，上述频率传递函数内包含的参数为复频率，可以理解的是，复频率的具体计算过程为现有技术，故此处不再进行赘述。此外，上述频率传递函数内包含的C1为耳机前腔声容，同样的，上述频率传递函数内包含的C2为耳道声容，同样的，上述频率传递函数内包含的R1为耳机出声口声阻，同样的，上述频率传递函数内包含的M1为耳机出声口声质量，同样的，上述频率传递函数内包含的为泄漏路径出声口声阻，同样的，上述频率传递函数内包含的为泄漏路径出声口声质量，其中，泄漏路径出声口声质量可以忽略不计。
此外，在本实施例及另一实施例中，耳机设备除了可以通过频率传递函数将各系统参数从频域转换到时域之外，还可以通过状态空间法、冲击响应不变法或双线性变换法等将各系统参数从频域转换到时域以得到时域冲击响应，可以理解的是，基于状态空间法、冲击响应不变法或双线性变换法等计算过程将系统参数从频域转换到时域以得到时域冲击响应的具体计算过程为现有技术，故此处不再进行赘述。
如此，耳机设备通过与声学系统对应的模拟等效电路内包含的各系统参数，对采集到的耳道气压信号内存在的畸变进行修正，得到能够用于检测生理信号的目标气压信号，并确保了目标气压信号的准确性。
在本实施例中，耳机设备在需要检测佩戴者的生理信号时，首先检测自身和佩戴者耳道组成的声学系统是否处于不会向外界环境泄漏信号的密闭状态，之后，耳机设备获取用于检测声学系统的密闭状态的第二声音信号，并对第二声音信号进行处理以确定声学系统对应的各声学系统参数，同时，耳机设备调用自身所配置的气压检测模块采集佩戴者耳道内产生的初始气压信号，最后，耳机设备基于常规系统参数和泄漏系统参数对初始气压信号进行修正，从而生成和初始气压信号对应的目标气压信号，耳机设备进而提取目标气压信号包含的信号特征，并对该信号特征进行转换从而确定佩戴者对应的生理信号。
如此，本发明解决了相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题，即，本发明通过由耳机设备和佩戴者耳道组成声学系统，并在确定声学系统没有处于密闭状态时，确定用于表明声学系统内的信号泄漏程度的声学系统参数，从而根据声学系统参数对佩戴者耳道内采集到的由耳道内动脉变化引起的气压信号进行修正，并根据修正后气压信号推算出佩戴者的生理信号，使得耳机设备在无需使用PPG技术的情况下也可以获取佩戴者的生理信号，进而确保了耳机设备在对佩戴者进行检测过程中不会受到外界环境光干扰，达到了令耳机设备能够准确检测佩戴者的生理信号的技术效果。
基于本发明第一实施例，在此提出本发明第二实施例，在本发明第二种实施例中，与上述实施例一相同或相似的内容，可以参考上文介绍，后续不再赘述。在此基础上，在步骤S10之后，本发明生理信号的测量方法还可以包括步骤A10～A20：
步骤A10：在检测到所述声学系统处于预设的密闭状态后，通过所述气压检测模块采集所述佩戴者耳道内的初始气压信号；
步骤A20：基于所述初始气压信号确定佩戴者对应的生理信号。
在本实施例中，耳机设备在判断到耳机设备和佩戴者耳道组成的声学系统处于密闭状态时，直接调用自身所配置的气压检测模块采集佩戴者耳道内产生的初始气压信号，之后，耳机设备提取初始气压信号包含的信号特征，并对初始气压信号包含的信号特征进行转换从而确定佩戴者对应的生理信号。
示例性地，例如，耳机设备若判断到自身和佩戴者耳道组成的声学系统处于密闭状态，则确定佩戴者耳道内产生的气压信号不会泄漏到外界环境，此时，耳机设备直接调用自身所配置的气压计采集佩戴者耳道内产生的初始气压信号，之后，耳机设备可以直接提取初始气压信号内包含的峰值、时间间隔等信号特征，并根据各信号特征确定目标气压信号内包含的波峰数量，进而根据波峰数量确定佩戴者的心率值。
如此，耳机设备检测到自身和佩戴者耳道构建的声学系统处于密闭状态时，能够直接基于采集到的耳道气压信号推算出佩戴者的心率值等生理信息，从而进一步提升检测效率。
基于本发明第一实施例和/或者第二实施例，在此提出本发明第三实施例，在本发明第三种实施例中，与上述各实施例相同或相似的内容，可以参考上文介绍，后续不再赘述。在此基础上，所述耳机设备和移动终端通信连接，在步骤S30之后，本发明生理信号的测量方法还可以包括步骤B10～B20：
步骤B10：确定预设生理信号区间，并判断所述生理信号是否处于所述预设生理信号区间内；
步骤B20：若判断到所述生理信号未处于所述预设生理信号区间内，则输出预设的警报信息至所述移动终端。
需要说明的是，预设生理信号区间为佩戴者身体处于健康情况时，其对应的生理信号所处的数值范围区间，例如，当佩戴者处于健康时，其对应的心率范围区间为60次/分钟-100次/分钟，可以理解的是，预设生理信号区间的具体数值可以由技术人员或佩戴者自行进行设置，本发明对此不作限制。
在本实施例中，耳机设备在推算得到佩戴者的生理信号之后，还可以读取自身所配置的存储装置，以获取与生理信号对应的预设生理信号区间，耳机设备进而将生理信号和预设生理信号区间进行比对，从而判断生理信号是否处于预设生理信号区间内，之后，耳机设备若判断到生理信号没有处于预设生理信号区间内，则获取预设的警报信息，并将警报信息发送至和自身相连的移动终端。
示例性地，例如，如图9所示，耳机设备在推算得到佩戴者的实时心率值之后，读取存储装置获取预设的心率值范围60次/分钟-100次/分钟，耳机设备进而将实时心率值和预设的心率值范围进行比对，从而判断实时心率值是否处于60次/分钟-100次/分钟这个范围内，之后，耳机设备若判断到佩戴者的实时心率数值没有处于60次/分钟-100次/分钟之间，则确定佩戴者的身体存在健康隐患，此时，耳机设备读取技术人员预先存储的警报信息，并通过自身所配置的蓝牙模块将警报信息和检测结果发送至和自身相连的，由佩戴者持有的移动终端，以通过移动终端对外向佩戴者发出提醒。
此外，在本实施例及另一实施例中，耳机设备在检测到佩戴者的实时心率值没有处于预设心率范围时，还可以通过扬声器发出警报声音信号，以通过警报声音信号对佩戴者进行提醒。
如此，耳机设备能够在检测到佩戴者的生理信号没有处于预设的生理信号范围区间时，及时输出警报信息以对佩戴者进行提醒。
基于本发明各实施例，在此提出本发明第四实施例，在本发明第四种实施例中，与上述各实施例相同或相似的内容，可以参考上文介绍，后续不再赘述。在此基础上，在步骤S30中“根据所述声学系统参数和所述初始气压信号生成目标气压信号”的步骤之后，本发明生理信号的测量方法还可以包括步骤C10：
步骤C10：将所述目标气压信号发送至移动终端，以供所述移动终端基于所述目标气压信号确定佩戴者对应的生理信号。
在本实施例中，耳机设备在计算得到目标气压信号之后，还可以将目标气压信号发送至与自身相连的移动终端，从而由移动终端基于目标气压信号确定佩戴者对应的生理信号。
示例性地，例如，如图9所示，耳机设备在修正得到目标气压信号之后，还可以通过自身所配置的蓝牙模块将该目标气压信号发送至佩戴者所持有的移动终端设备，从而由该移动终端设备提取目标气压信号内包含的峰值、时间间隔等信号特征，并根据各信号特征确定目标气压信号内包含的波峰数量，进而根据波峰数量确定佩戴者的心率值。
如此，耳机设备通过将目标气压信号发送至其他移动终端设备的方式，能够由其他移动终端设备对目标气压信号进行处理，从而利用移动终端设备在硬件上的优势，进一步提升对于生理信号的处理效率。
基于本发明各实施例，在此提出本发明优选实施例，在本实施例中：
耳机设备在对佩戴者的生理信号进行检测之前，首先将自身和佩戴者耳道之间构建的声学系统转换为等效电路模型，同时，耳机设备读取自身所配置的存储装置，以获取存储有耳机设备尺寸信息和耳道尺寸信息的耳机设备尺寸参数，和存储有耳机设备所在环境对应的环境信息参数，耳机设备进而根据耳机设备尺寸参数和环境信息参数计算得到等效电路模型内包含的耳机前腔声容、耳机出声口声阻、耳机出声口声质量及耳道声容等常规系统参数；
之后，耳机设备通过自身所配置的扬声器向佩戴者耳道内发出第一声音信号，并通过自身所配置的麦克风采集第一声音信号在传递过程中形成的第二声音信号，耳机设备进而将第二声音信号和预设的标准声音信号进行比对得到第一比对结果，并在第一比对结果为第二声音信号和标准声音信号不完全一致，或者，第二声音信号和标准声音信号之间产生的信号差值大于或等于预设范围时，确定第二声音信号和标准声音信号不匹配，进而确定耳机设备和佩戴者耳道之间形成的声学系统存在泄漏通道；而耳机设备在确定第一比对结果为第二声音信号和标准声音信号完全一致，或者，第二声音信号和标准声音信号之间产生的信号差值小于预设范围时，确定第二声音信号和标准声音信号匹配，进而确定耳机设备和佩戴者耳道之间形成的声学系统不存在泄漏通道；
再之后，耳机设备若判断到声学系统存在泄漏通道，则提取第二声音信号的各声音信号特征，并根据各声音信号特征确定耳机设备当前所在的声学系统对应的耳机频率响应，同时，耳机设备获取声学系统在密闭状态下对应的预设频率响应，并将耳机频率响应和预设频率响应进行比对，从而基于比对结果得到能够表明声学系统中的信号泄漏程度的泄漏系统参数；然后，耳机设备调用自身所配置的气压计采集佩戴者耳道内存在的初始气压信号，并根据泄漏系统参数对初始气压信号进行修正得到目标气压信号，同时，耳机设备提取目标气压信号包含的各信号特征，并根据各信号特征推算出佩戴者的生理信号；
最后，耳机设备将推算得到的生理信号和预设的生理信号区间进行比对，并判断生理信号是否处于生理信号区间内，并在判断到生理信号没有处于生理信号区间内时，向与自身相连的移动终端设备发送警报信息和检测结果，以通过移动终端设备对佩戴者进行提醒；
此外，耳机设备若判断到声学系统不存在泄漏通道，则直接调用自身所配置的气压计采集佩戴者耳道内存在的初始气压信号，并提取初始气压信号包含的各信号特征，并根据各信号特征推算出佩戴者的生理信号。
本发明提供一种耳机设备，耳机设备包括：至少一个处理器；以及，与至少一个处理器通信连接的存储器；其中，存储器存储有可被至少一个处理器执行的指令，指令被至少一个处理器执行，以使至少一个处理器能够执行上述实施例一中的生理信号的测量方法。
下面参考图8，其示出了适于用来实现本发明实施例的耳机设备的结构示意图。本发明实施例中的耳机设备可以包括但不限于诸如移动电话、笔记本电脑、数字广播接收器、PDA(Personal Digital Assistant：个人数字助理)、PAD(Portable Application Description：平板电脑)、PMP(Portable Media Player：便携式多媒体播放器)、车载终端(例如车载导航终端)等等的移动终端以及诸如数字TV、台式计算机等等的固定终端。图5示出的耳机设备仅仅是一个示例，不应对本发明实施例的功能和使用范围带来任何限制。
如图8所示，耳机设备可以包括处理装置1001(例如中央处理器、图形处理器等)，其可以根据存储在只读存储器(ROM：Read Only Memory)1002中的程序或者从存储装置1003加载到随机访问存储器(RAM：Random Access Memory)1004中的程序而执行各种适当的动作和处理。在RAM1004中，还存储有耳机设备操作所需的各种程序和数据。处理装置1001、ROM1002以及RAM1004通过总线1005彼此相连。输入/输出(I/O)接口1006也连接至总线。通常，以下系统可以连接至I/O接口1006：包括例如触摸屏、触摸板、键盘、鼠标、图像传感器、麦克风、加速度计、陀螺仪等的输入装置1007；包括例如液晶显示器(LCD：Liquid Crystal Display)、扬声器、振动器等的输出装置1008；包括例如磁带、硬盘等的存储装置1003；以及通信装置1009。通信装置1009可以允许耳机设备与其他设备进行无线或有线通信以交换数据。虽然图中示出了具有各种系统的耳机设备，但是应理解的是，并不要求实施或具备所有示出的系统。可以替代地实施或具备更多或更少的系统。
特别地，根据本发明公开的实施例，上文参考流程图描述的过程可以被实现为计算机软件程序。例如，本发明公开的实施例包括一种计算机程序产品，其包括承载在计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以通过通信装置从网络上被下载和安装，或者从存储装置1003被安装，或者从ROM1002被安装。在该计算机程序被处理装置1001执行时，执行本发明公开实施例的方法中限定的上述功能。
本发明提供的耳机设备，采用上述实施例中的生理信号的测量方法，能解决相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题。与现有技术相比，本发明提供的耳机设备的有益效果与上述实施例提供的生理信号的测量方法的有益效果相同，且该耳机设备中的其他技术特征与上一实施例方法公开的特征相同，在此不做赘述。
应当理解，本发明公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
本发明提供一种计算机可读存储介质，具有存储在其上的计算机可读程序指令(即计算机程序)，计算机可读程序指令用于执行上述实施例中的生理信号的测量方法。
本发明提供的计算机可读存储介质例如可以是U盘，但不限于电、磁、光、电磁、红外线、或半导体的系统、系统或器件，或者任意以上的组合。计算机可读存储介质的更具体地例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM：Random Access Memory)、只读存储器(ROM：Read Only Memory)、可擦式可编程只读存储器(EPROM：Erasable Programmable Read Only Memory或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM：CD-Read Only Memory)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本实施例中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、系统或者器件使用或者与其结合使用。计算机可读存储介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：电线、光缆、RF(Radio Frequency：射频)等等，或者上述的任意合适的组合。
上述计算机可读存储介质可以是耳机设备中所包含的；也可以是单独存在，而未装配入耳机设备中。
上述计算机可读存储介质承载有一个或者多个程序，当上述一个或者多个程序被耳机设备执行时，使得耳机设备：输出第一声音信号，并接收所述第一声音信号在声学系统内对应的第二声音信号，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；
根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态；
若判断到所述声学系统没有处于所述密闭状态，则根据所述第二声音信号确定所述声学系统对应的声学系统参数；
通过所述气压检测模块采集所述佩戴者耳道内的初始气压信号，并根据所述声学系统参数和所述初始气压信号生成目标气压信号；
基于所述目标气压信号确定佩戴者对应的生理信号。
可以以一种或多种程序设计语言或其组合来编写用于执行本发明的操作的计算机程序代码，上述程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(LAN：Local Area Network)或广域网(WAN：Wide Area Network)—连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
附图中的流程图和框图，图示了按照本发明各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，该模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本发明实施例中所涉及到的模块可以通过软件的方式实现，也可以通过硬件的方式来实现。其中，模块的名称在某种情况下并不构成对该单元本身的限定。
本发明提供的可读存储介质为计算机可读存储介质，所述计算机可读存储介质存储有用于执行上述生理信号的测量方法的计算机可读程序指令(即计算机程序)，能够解决相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题。与现有技术相比，本发明提供的计算机可读存储介质的有益效果与上述实施例提供的生理信号的测量方法的有益效果相同，在此不做赘述。
本发明还提供一种计算机程序产品，包括计算机程序，所述计算机程序被处理器执行时实现如上述的生理信号的测量方法的步骤。
本发明提供的计算机程序产品能够解决相关技术中耳机设备对佩戴者的生理信号进行检测的过程中，会因为受到外界环境光干扰而无法准确获取佩戴者的生理信号的技术问题。与现有技术相比，本发明提供的计算机程序产品的有益效果与上述实施例提供的生理信号的测量方法的有益效果相同，在此不做赘述。
以上所述仅为本发明的部分实施例，并非因此限制本发明的专利范围，凡是在本发明的技术构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (13)

  1. 一种生理信号的测量方法，其特征在于，所述生理信号的测量方法应用于配置有气压检测模块的耳机设备，所述生理信号的测量方法包括：
    检测所述耳机设备对应的声学系统是否处于预设的密闭状态，其中，所述声学系统为所述耳机设备和佩戴者耳道组成的声学系统；
    在检测到未处于预设的密闭状态后，确定所述声学系统对应的声学系统参数，并通过所述气压检测模块采集佩戴者耳道内的初始气压信号；
    根据所述声学系统参数和所述初始气压信号生成目标气压信号，并基于所述目标气压信号确定佩戴者对应的生理信号。
  2. 如权利要求1所述的方法，其特征在于，所述检测所述耳机设备对应的声学系统是否处于预设的密闭状态的步骤，包括：
    输出第一声音信号，并接收所述第一声音信号在所述耳机设备对应的声学系统内对应的第二声音信号；
    根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态。
  3. 如权利要求2所述的方法，其特征在于，所述根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态的步骤，包括：
    确定预设的标准声音信号，并将所述第二声音信号和所述标准声音信号进行比对得到第一比对结果；
    在所述第一比对结果为所述第二声音信号和所述标准声音信号匹配时，确定所述声学系统处于预设的密闭状态；
    在所述第一比对结果为所述第二声音信号和所述标准声音信号不匹配时，确定所述声学系统未处于所述密闭状态。
  4. 如权利要求2所述的方法，其特征在于，在所述根据所述第二声音信号判断所述声学系统是否处于预设的密闭状态的步骤之后，所述方法还包括：
    在检测到所述声学系统处于预设的密闭状态后，通过所述气压检测模块采集所述佩戴者耳道内的初始气压信号；
    基于所述初始气压信号确定佩戴者对应的生理信号。
  5. 如权利要求2所述的方法，其特征在于，所述声学系统参数包含泄漏系统参数，所述确定所述声学系统对应的声学系统参数的步骤，包括：
    提取所述第二声音信号内包含的各声音信号特征，并根据各所述声音信号特征确定所述第二声音信号对应的耳机频率响应；
    根据所述耳机频率响应确定所述声学系统对应的泄漏系统参数。
  6. 如权利要求5所述的方法，其特征在于，所述根据所述耳机频率响应确定所述声学系统对应的泄漏系统参数的步骤，包括：
    获取预设的多个基准频率响应，和多个所述基准频率响应各自对应的基准系统参数；
    根据所述耳机频率响应在多个所述基准频率响应中确定目标频率响应；
    将所述目标频率响应对应的基准系统参数确定为所述声学系统对应的泄漏系统参数。
  7. 如权利要求5所述的方法，其特征在于，所述声学系统参数还包含常规系统参数，所述确定所述声学系统对应的声学系统参数的步骤，还包括：
    获取耳机设备尺寸参数和环境信息参数；
    根据所述耳机设备尺寸参数和所述环境信息参数确定所述声学系统对应的常规系统参数。
  8. 如权利要求1所述的方法，其特征在于，所述根据所述声学系统参数和所述初始气压信号生成目标气压信号的步骤，包括：
    根据所述声学系统参数确定所述初始气压信号对应的时域冲击响应参数；
    根据所述时域冲击响应参数对所述初始气压信号进行修正以生成目标气压信号。
  9. 如权利要求1所述的方法，其特征在于，所述耳机设备和移动终端通信连接，在所述基于所述目标气压信号确定佩戴者对应的生理信号的步骤之后，所述方法还包括：
    确定预设生理信号区间，并判断所述生理信号是否处于所述预设生理信号区间内；
    若判断到所述生理信号未处于所述预设生理信号区间内，则输出预设的警报信息至所述移动终端。
  10. 如权利要求1所述的方法，其特征在于，在所述根据所述声学系统参数和所述初始气压信号生成目标气压信号的步骤之后，所述方法还包括：
    将所述目标气压信号发送至移动终端，以供所述移动终端基于所述目标气压信号确定佩戴者对应的生理信号。
  11. 一种耳机设备，其特征在于，所述设备包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序配置为实现如权利要求1至10中任一项所述的生理信号的测量方法的步骤。
  12. 一种存储介质，其特征在于，所述存储介质为计算机可读存储介质，所述存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至10中任一项所述的生理信号的测量方法的步骤。
  13. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序，所述计算机程序被处理器执行时实现如权利要求1至10中任一项所述的生理信号的测量方法的步骤。
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