WO2017177399A1

WO2017177399A1 - Heart rate measurement method and system

Info

Publication number: WO2017177399A1
Application number: PCT/CN2016/079169
Authority: WO
Inventors: 康俊腾
Original assignee: 华为技术有限公司
Priority date: 2016-04-13
Filing date: 2016-04-13
Publication date: 2017-10-19
Also published as: CN108601539A; CN108601539B

Abstract

A heart rate measurement method and system. The method comprises: a heart rate measurement system obtains a low-frequency sound signal of an object to be measured, the low-frequency sound signal comprising a heart rate signal of the object to be measured (S101); the heart rate measurement system obtains the heart rate signal according to the low-frequency sound signal (S102); the heart rate measurement system determines, according to a waveform of the heart rate signal, a heart rate value of the object to be measured (S103). Therefore, a wearable device is lower in costs while achieving heart rate measurement.

Description

Heart rate detection method and system

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a heart rate detecting method and system.

Background technique

A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes. Because the wearable device can monitor various indicators of the user anytime and anywhere, such as: sports step, heart rate detection, sleep quality Monitoring, etc., therefore, wearable devices are increasingly favored by users.

In the prior art, in order to enable detection of heart rate, an existing infrared ray emitter and a photoelectric sensor are disposed in the wearable device, wherein the infrared ray emitter is used to emit infrared rays to the user's body, and the photoelectric sensor is used to receive infrared rays passing through the user's body. Since the infrared rays pass through the user's body, the periodic attenuation occurs according to the change of the user's pulse. Therefore, the wearable device can extract the pulse signal of the user through the infrared rays received by the photoelectric sensor, and then pass the pulse signal and The correspondence between the pulse and the heart rate, the user's heart rate is obtained.

However, the wearable device of the prior art has a higher cost when implementing heart rate detection.

Summary of the invention

The embodiments of the present invention provide a heart rate detection method and system, which are used to solve the technical problem that the wearable device in the prior art achieves high cost when implementing heart rate detection.

In a first aspect, an embodiment of the present invention provides a heart rate detection method, which may include:

The heart rate detection system acquires a low frequency sound signal of the object to be detected through a microphone or a speaker under a closed field formed by the body of the object to be detected, and the low frequency sound signal includes a heart rate signal of the object to be detected;

The heart rate detecting system acquires a heart rate signal according to the low frequency sound signal;

The heart rate detecting system determines a heart rate value of the object to be detected according to a waveform of the heart rate signal.

According to the heart rate detecting method provided by the first aspect, when the heart rate detecting system is a wearable device, the wearable device passes through an existing microphone or speaker, or a peripheral device connected to the wearable device The inherent microphone or speaker can acquire a low frequency sound signal carrying the heart rate signal of the object to be detected under the closed field formed by the body of the object to be detected, so that the wearable device can obtain the low frequency sound signal through the low frequency sound signal. The heart rate signal corresponding to the heart rate of the object to be detected, thereby determining the heart rate value of the object to be detected by the heart rate signal. Therefore, the heart rate detecting method provided by the embodiment of the present invention reduces the cost of the wearable device when the wearable device realizes heart rate detection.

Optionally, in a possible implementation manner of the first aspect, the heart rate detection system acquires a heart rate signal according to the low frequency sound signal, and specifically includes:

The heart rate detection system determines a magnitude of the standard heart rate signal based on a sound level of a standard heart rate signal;

The heart rate detecting system determines a sound signal of the low frequency sound signal that satisfies the amplitude of the standard heart rate signal as the heart rate signal.

The heart rate detecting system respectively performs power amplification on the standard heart rate signal and the low frequency sound signal to obtain an amplified standard heart rate signal and an amplified low frequency sound signal;

The heart rate detecting system determines the amplitude of the amplified standard heart rate signal according to the sound level of the amplified standard heart rate signal, and satisfies the amplified standard heart rate signal in the amplified low frequency sound signal The amplitude of the sound signal is determined as the heart rate signal.

The heart rate detecting method provided by the first possible embodiment can make the heart rate detecting system more precise by making the low frequency sound signal power-amplify, so that the amplitude of each sound signal in the amplified low-frequency sound signal is more accurate. The sound signal that satisfies the amplitude of the amplified standard heart rate signal determined from the amplified low frequency sound signal can more accurately determine the heart rate signal of the object to be detected, and thus can be determined according to the heart rate signal. The accuracy of the heart rate value of the object to be detected is higher, which further improves the accuracy of the heart rate detected by the heart rate detecting system.

Optionally, in a possible implementation manner of the first aspect, the heart rate detection system determines the heart rate value of the object to be detected according to the waveform of the heart rate signal, and specifically includes:

The heart rate detecting system determines a period of the heart rate signal according to a waveform of the heart rate signal;

The heart rate detecting system determines a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.

Further, in a possible implementation manner of the first aspect, before the heart rate detection system acquires the low frequency sound signal of the object to be detected, the method further includes:

The heart rate detection system receives a heart rate detection request of an object to be detected.

The heart rate detection method provided by the possible implementation manner enables the heart rate detection system to perform heart rate detection on the object to be detected after receiving the heart rate detection request of the object to be detected. In this way, the heart rate detection system can be avoided. The state of detecting the heart rate of the object to be detected reduces the power consumption of the heart rate detecting system and also improves the user experience.

Further, in a possible implementation manner of the first aspect, after the heart rate detection system determines the heart rate value of the object to be detected, the method further includes:

The heart rate detection system outputs a heart rate value of the object to be detected.

The heart rate detecting method provided by the first possible embodiment enables the heart rate detecting system to output the heart rate value to the object to be detected in time by the output device or the terminal connected thereto after determining the heart rate value of the object to be detected. In order to enable the object to be detected to know its current heart rate value in time, the user experience is improved.

In a second aspect, an embodiment of the present invention provides a heart rate detection system, which may include:

a first acquisition module, configured to acquire, by using a microphone or a speaker, a low-frequency sound signal of the object to be detected, where the low-frequency sound signal includes a heart rate signal of the object to be detected, in a closed field formed by a body of the object to be detected;

a second acquiring module, configured to acquire a heart rate signal according to the low frequency sound signal acquired by the first acquiring module;

And a determining module, configured to determine a heart rate value of the object to be detected according to a waveform of the heart rate signal acquired by the second acquiring module.

Optionally, in a possible implementation manner of the second aspect, the second acquiring module includes:

a first determining unit, configured to determine a magnitude of the standard heart rate signal according to a sound level of the standard heart rate signal;

And a second determining unit, configured to determine, as the heart rate signal, a sound signal of the low frequency sound signal that satisfies a magnitude of a standard heart rate signal determined by the first determining unit.

An amplifying unit, configured to perform power amplification on the standard heart rate signal and the low frequency sound signal, to obtain an amplified standard heart rate signal and an amplified low frequency sound signal;

a third determining unit, configured to determine a magnitude of the amplified standard heart rate signal according to a sound level of the amplified standard heart rate signal, and satisfy the enlarged standard in the amplified low frequency sound signal The sound signal of the amplitude of the heart rate signal is determined as the heart rate signal.

Optionally, in a possible implementation manner of the second aspect, the determining module is configured to determine a period of the heart rate signal according to a waveform of the heart rate signal, and according to a period of the heart rate signal The heart rate value of the object to be detected is determined by a preset time period.

Further, in a possible implementation manner of the second aspect, the system may further include:

The receiving module is configured to receive a heart rate detection request of the object to be detected before the first acquiring module acquires the low frequency sound signal of the object to be detected.

And an output module, configured to output a heart rate value of the object to be detected after the determining module determines the heart rate value of the object to be detected.

The beneficial effects of the heart rate detecting system provided by the above second aspect and the possible embodiments of the second aspect can be seen in the beneficial effects of the first aspect and the possible embodiments of the first aspect, and are not Let me repeat.

In a third aspect, an embodiment of the present invention provides a heart rate detection system, which may include:

An input device, configured to acquire a low frequency sound signal of the object to be detected under a closed field formed by a body of the object to be detected, where the low frequency sound signal includes a heart rate signal of the object to be detected;

And a processor, configured to acquire a heart rate signal according to the low frequency sound signal acquired by the input device, and determine a heart rate value of the object to be detected according to the waveform of the heart rate signal.

Optionally, in a possible implementation manner of the third aspect, the acquiring a heart rate signal according to the low frequency sound signal acquired by the input device includes:

The amplitude of the standard heart rate signal is determined according to a sound level of the standard heart rate signal, and a sound signal of the low frequency sound signal that satisfies the amplitude of the standard heart rate signal is determined as the heart rate signal.

Optionally, in a possible implementation manner of the third aspect, the The obtained low frequency sound signal acquires the heart rate signal, and specifically includes:

And respectively performing power amplification on the standard heart rate signal and the low frequency sound signal to obtain an amplified standard heart rate signal and the amplified low frequency sound signal; and determining the amplified standard according to the sound level of the amplified standard heart rate signal The amplitude of the heart rate signal is determined as the heart rate signal of the amplified low frequency sound signal that satisfies the amplitude of the amplified standard heart rate signal.

Optionally, in a possible implementation manner of the third aspect, the determining, according to the waveform of the heart rate signal, the heart rate value of the object to be detected, specifically:

Determining a period of the heart rate signal according to a waveform of the heart rate signal, and determining a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.

Further, in a possible implementation manner of the third aspect, the system may further include:

And a receiver, configured to receive a heart rate detection request of the object to be detected before the input device acquires the low frequency sound signal of the object to be detected.

And an output device, configured to output a heart rate value of the object to be detected after the processor determines the heart rate value of the object to be detected.

Optionally, in a possible implementation manner of the third aspect, the input device is a microphone and/or a speaker.

The beneficial effects of the heart rate detecting system provided by the foregoing third aspect and the possible embodiments of the third aspect can be seen in the beneficial effects of the first aspect and the possible embodiments of the first aspect, and are not Let me repeat.

The heart rate detecting method and system provided by the embodiments of the present invention, when the heart rate detecting system is a wearable device, the wearable device passes through a microphone or a speaker inherent thereto, or a microphone or a speaker inherent to the peripheral device connected to the wearable device. The low frequency sound signal carrying the heart rate signal of the object to be detected is acquired under the closed field formed by the body of the object to be detected, so that the wearable device can acquire the heart rate corresponding to the object to be detected through the low frequency sound signal. The heart rate signal, thereby determining the heart rate value of the object to be detected by the heart rate signal. Therefore, the heart rate detecting method provided by the embodiment of the present invention reduces the wearable device when the wearable device realizes heart rate detection. the cost of.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic flowchart of Embodiment 1 of a heart rate detecting method according to an embodiment of the present invention;

2 is a schematic flowchart of Embodiment 2 of a heart rate detecting method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an application scenario of a second embodiment of a heart rate detection method according to an embodiment of the present disclosure;

4 is a schematic diagram of a low frequency sound signal according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 1 of a heart rate detecting system according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of Embodiment 2 of a heart rate detection system according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of Embodiment 3 of a heart rate detecting system according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of Embodiment 4 of a heart rate detecting system according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of Embodiment 5 of a heart rate detecting system according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of Embodiment 6 of a heart rate detecting system according to an embodiment of the present disclosure;

FIG. 11 is a structural block diagram of a heart rate detecting system according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The method according to the embodiment of the present invention may be applied to a heart rate detection system, and the heart rate detection system may be any wearable device having a heart rate detection function (for example, a smart earphone, a smart bracelet, etc.), and may also have heart rate detection for any one. A functional mobile terminal (for example, a mobile phone, a computer having a mobile terminal, or the like), and the like may also include the above-described wearable device and the above mobile terminal. Of course, the method involved in the embodiments of the present invention includes but is not limited to the above application scenarios, as long as The heart rate detection method provided by the embodiment of the present invention may be adopted in all scenarios involving heart rate detection.

The method according to the embodiment of the present invention is to solve the technical problem that the wearable device in the prior art has a high cost when implementing heart rate detection.

The technical solutions of the present invention will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a heart rate detecting method according to an embodiment of the present invention. The first embodiment relates to a specific process for determining the heart rate value of the object to be detected according to the low frequency sound signal of the object to be detected by the heart rate detecting system. As shown in Figure 1, the method includes:

S101. The heart rate detection system acquires a low frequency sound signal of the object to be detected through a microphone or a speaker under a closed field formed by the body of the object to be detected; wherein the low frequency sound signal includes a heart rate signal of the object to be detected.

Specifically, the object to be detected may be any creature having a heart rate and a pulse, such as a person, a dog, a cat, or the like. Since the signal formed by the pulse of the object to be detected belongs to the low frequency sound signal range, and the pulse corresponds to the heart rate one by one, when the heart rate detecting system needs to detect the heart rate of the object to be detected, the heart rate detecting system may be the object to be detected. Under the closed field formed by the body, a low-frequency sound signal carrying a pulse signal of the object to be detected, that is, a low-frequency sound signal carrying a heart rate signal of the object to be detected is first obtained by setting a microphone or a speaker thereon. The microphone or the speaker mentioned herein may be a microphone or a speaker inherent to the heart rate detecting system itself, or may be a microphone or a speaker inherent to the peripheral connected to the heart rate detecting system (for example, connected to the heart rate detecting system). Microphone or speaker on the headset).

The low frequency sound signal of the object to be detected acquired by the heart rate detecting system may be a closed field formed by the heart rate detecting system and the body of the object to be detected (ie, a closed space formed by the heart rate detecting system and the body of the object to be detected). The obtained low-frequency sound signal of the object to be detected, for example, when the heart rate detecting system covers the external auditory canal of the object to be detected, at this time, the heart rate detecting system and the ear of the object to be detected constitute a closed space (ie, a closed field), In the closed field, the heart rate detecting system can acquire the low frequency sound signal of the object to be detected in the ear of the object to be detected through a microphone or a speaker; or the body of the object to be detected is in a closed field (ie, the body of the object to be detected itself) When the heart rate detection system is in the enclosed space, the heart rate detection system is checked by the microphone or the speaker. The low frequency sound signal of the object is measured.

It should be noted that when the heart rate detecting system acquires the low frequency sound signal of the object to be detected through the speaker under the closed field formed by the body of the object to be detected, the low frequency sound generated by the object to be detected can make the vibration system of the speaker Vibrating (eg, a diaphragm) such that a magnetic loop system (eg, a magnet) of the speaker can convert the vibration into a waveform in the form of a current or voltage (the waveform in the form of a voltage or current is a low frequency sound signal), The heart rate detection system is caused to acquire the low frequency sound signal through a feedback loop of a power amplifier circuit connected to the speaker. Optionally, when the speaker is a speaker inherent to the heart rate detecting system, the power amplifier circuit connected to the speaker may be a power amplifier circuit inherent to the heart rate detecting system, and the speaker is a peripheral device connected to the heart rate detecting system. In the case of a speaker, the above-mentioned power amplifier circuit connected to the speaker may be a power amplifier circuit inherent to the peripheral connected to the heart rate detecting system.

S102. The heart rate detection system acquires a heart rate signal according to the low frequency sound signal.

Specifically, the low-frequency sound signal acquired by the heart rate detecting system includes other low-frequency sound signals in addition to the heart rate signal of the object to be detected, for example, a sound signal formed by the bone movement of the object to be detected, and a noise environment of the external environment. The formed sound signal or the like, since the parameters corresponding to the other low-frequency sound signals (for example, the frequency range, the amplitude, and the like) are different from the parameters corresponding to the standard heart rate signal, the heart rate detecting system acquires the low frequency of the object to be detected. After the sound signal, the heart rate signal can be acquired in the low frequency sound signal according to the parameter corresponding to the standard heart rate signal.

Optionally, the heart rate detecting system may filter, according to a frequency range corresponding to the standard heart rate signal, a sound signal located in the frequency range by using a band pass filter corresponding to the frequency range, where the sound signal is For heart rate signals. Optionally, the heart rate detecting system may further determine the amplitude of the standard heart rate signal according to the sound level of the standard heart rate signal, and then use the sound signal that satisfies the amplitude in the low frequency sound signal as the heart rate signal according to the amplitude. Optionally, if the heart rate detection system is a wearable device, the wearable device may further send the acquired low frequency sound signal to the mobile terminal associated with the wearable device, so that the terminal can receive the low frequency sound signal. Get the heart rate signal and return it to the wearable device.

S103. The heart rate detection system determines a heart rate value of the object to be detected according to a waveform of the heart rate signal.

Specifically, after the heart rate detection system acquires the heart rate signal of the object to be detected, the heart rate value of the object to be detected may be determined according to the waveform of the heart rate signal. For example: the above heart rate test The measuring system can determine the number of times the peak value of the heart rate signal appears within the preset time period according to the waveform of the heart rate signal, and the number of times is the heart rate value of the object to be detected. The preset time period may be set according to the requirement of the object to be detected, for example, may be one minute, half minute, or the like.

In the prior art, the infrared transmitter and the photoelectric sensor for detecting the heart rate are specifically disposed on the wearable device, so that the wearable device can acquire the heart rate signal of the object to be detected through the two devices, thereby enabling the wearable device to pass the The heart rate signal determines the heart rate of the subject to be detected. However, due to the high cost of the infrared emitter and the photoelectric sensor, the existing wearable device has a higher cost when the heart rate detection is achieved by the above method. The heart rate detecting method provided by the embodiment of the present invention, when the heart rate detecting system is a wearable device, does not need to set a device dedicated to detecting the heart rate on the wearable device, but directly passes through a microphone inherent to the wearable device itself or The speaker or the microphone or the speaker inherent in the peripheral device connected to the wearable device can acquire the low-frequency sound signal carrying the heart rate signal of the object to be detected under the closed field formed by the body of the object to be detected, and further The wearable device can obtain a heart rate signal corresponding to the heart rate of the object to be detected through the low frequency sound signal, thereby determining the heart rate value of the object to be detected by the waveform of the heart rate signal. Therefore, the heart rate detecting method provided by the embodiment of the present invention can reduce the cost of the wearable device by enabling the wearable device to implement heart rate detection.

The heart rate detecting method provided by the embodiment of the present invention, when the heart rate detecting system is a wearable device, the wearable device can be through a microphone or a speaker inherent thereto or a microphone or a speaker inherent to the peripheral device connected to the wearable device. Obtaining a low frequency sound signal carrying a heart rate signal of the object to be detected under a closed field formed by the body of the object to be detected, so that the wearable device can acquire a heart rate signal corresponding to the heart rate of the object to be detected through the low frequency sound signal And determining the heart rate value of the object to be detected by the heart rate signal. Therefore, the heart rate detecting method provided by the embodiment of the present invention reduces the cost of the wearable device when the wearable device realizes heart rate detection.

The heart rate detection method provided by the embodiment of the present invention is described in detail below with a specific example. FIG. 2 is a schematic flowchart diagram of Embodiment 2 of a heart rate detecting method according to an embodiment of the present invention. FIG. 3 is a schematic diagram of an application scenario of a second embodiment of a heart rate detection method according to an embodiment of the present invention. In the embodiment, the heart rate detection system is an earphone 1 (ie, a wearable device), and the second embodiment relates to an earphone. 1 A specific process of acquiring a heart rate value of an object to be detected by a microphone or a speaker thereon in a closed field formed with an ear of a subject to be detected. As shown in FIG. 2 and FIG. 3, the method includes:

S201, the earphone 1 is in the closed field formed by the body of the object to be detected, through the microphone or Yang The sounder acquires a low frequency sound signal of the object to be detected.

Specifically, as shown in FIG. 3, when the earphone 1 covers the external auditory canal of the object to be detected, the earphone 1 forms a closed space with the external auditory canal of the object to be detected, so that the earphone 1 forms a closed field with the ear of the object to be detected, so that The earphone 1 can acquire a low-frequency sound signal in the ear of the object to be detected through the microphone or the speaker disposed thereon, and in this way, the component of the ambient noise in the acquired low-frequency sound signal can be further reduced.

It should be noted that the microphone mentioned here may be a noise reduction microphone inherent in the speaker on the earphone 1 , and may also be a separately provided microphone on the earphone 1 , and the position of the microphone may be close to the position of the speaker, so that when the earphone When the outer ear canal of the object to be detected is covered, the microphone and the speaker of the earphone 1 can be in a closed field formed by the earphone 1 and the ear of the object to be detected, so that the earphone 1 can acquire the low frequency of the object to be detected through the microphone or the speaker. Sound signal.

S202. The earphone 1 determines the amplitude of the standard heart rate signal according to the sound level of the standard heart rate signal.

Specifically, the foregoing amplitude may be a voltage or a current, and may be determined according to a user's needs in a specific implementation. After the earphone 1 acquires the low frequency sound signal of the object to be detected, the amplitude of the standard heart rate signal can be determined according to the sound level of the standard heart rate signal and the correspondence between the existing sound level and the amplitude (ie, voltage or current). . The sound level of the standard heart rate signal mentioned herein may be the sound level of the normal heart rate signal, and the sound level of the normal heart rate signal may be determined according to a specific object to be detected, for example, the sound level of the normal heart rate signal may be 40 decibels to Between 60 decibels. The sound level of the standard heart rate signal may also be a sound level higher than the sound level corresponding to the sound signal other than the heart rate signal in the low frequency sound signal. In this case, the sound level of the standard heart rate signal may be specifically determined according to The sound signal included in the low frequency sound signal is determined. The sound level of the above-mentioned standard heart rate signal can be determined according to the needs of the user or the actual situation of the object to be detected, which is not limited by the present invention.

Illustratively, FIG. 4 is a schematic diagram of a low frequency sound signal according to an embodiment of the present invention. As shown in FIG. 4, the low frequency sound signal is obtained by the earphone 1 covering the external auditory canal of the object to be detected. The low-frequency sound signal of the detection target, in the example, the sound level of the standard heart rate signal is 50 decibels, and the amplitude of the standard heart rate signal is taken as an example, according to the correspondence between the existing sound level and the voltage, The amplitude of the standard heart rate signal can be 0.67V.

S203. The earphone 1 determines a sound signal of the low frequency sound signal that satisfies the amplitude of the standard heart rate signal as a heart rate signal.

Specifically, after the earphone 1 determines the amplitude of the standard heart rate signal, the sound signal satisfying the amplitude of the standard heart rate signal in the low frequency sound signal can be determined as the heart rate signal according to the amplitude of the standard heart rate signal. Optionally, the sound signal equal to the amplitude in the low frequency sound signal may be used as the heart rate signal, and the sound signal in the low frequency sound signal and the amplitude difference in the preset range may be used as the heart rate signal, and A sound signal of the low frequency sound signal that is greater than or equal to the amplitude is used as a heart rate signal.

Continuing to refer to the example shown in FIG. 4 above, taking the sound signal of the low frequency sound signal equal to or greater than the amplitude as a heart rate signal, after the earphone 1 determines that the amplitude of the standard heart rate signal is 0.67V, the earphone 1 can A sound signal having a magnitude greater than or equal to 0.67 V is used as a heart rate signal, that is, a sound signal above the broken line in FIG. 4 is a heart rate signal.

In order to further improve the accuracy of the heart rate signal obtained from the low frequency sound signal, in an implementation manner of the present invention, the above S202-S203 may be replaced by the following steps: the earphone 1 respectively has a standard heart rate signal and a low frequency sound signal. Performing power amplification to obtain an amplified standard heart rate signal and an amplified low frequency sound signal; the earphone 1 determines the amplitude of the amplified standard heart rate signal according to the sound level of the amplified standard heart rate signal, and the amplified low frequency sound signal The sound signal that satisfies the amplitude of the amplified standard heart rate signal is determined as a heart rate signal. By power-amplifying the low-frequency sound signal, the amplitude of each sound signal in the amplified low-frequency sound signal is more accurate, so that the earphone 1 can more accurately determine the amplification from the amplified low-frequency sound signal. The sound signal of the amplitude of the standard heart rate signal can more accurately determine the heart rate signal of the object to be detected, so that the heart rate value of the object to be detected can be accurately determined according to the heart rate signal, thereby further improving the wearable device. The accuracy of the detected heart rate. Wherein, the power amplification of the standard heart rate signal and the low frequency sound signal is performed to obtain an implementation manner of the amplified standard heart rate signal and the amplified low frequency sound signal. For details, refer to the prior art.

S204. The earphone 1 determines the period of the heart rate signal according to the waveform of the heart rate signal.

Specifically, since the heart rate signal is a periodic signal, after the earphone 1 acquires the heart rate signal, the period of the heart rate signal can be determined according to the waveform of the heart rate signal, that is, the time corresponding to one cycle of the heart rate signal, that is, The frequency of heart beats. Wherein, the period of the heart rate signal mentioned herein may be any period of the heart rate signal, or the heart rate signal may be within a preset period of time. The average period can be determined according to the needs of users.

Continuing to refer to the example shown in FIG. 4 above, taking the average period of the heart rate signal within the preset duration as an example, according to the waveform of the heart rate signal shown in FIG. 4, it is known that a total of 14 peaks appear in 10S, and the heart rate is determined. The period of the signal can be 0.71S.

S205. The earphone 1 determines a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.

Specifically, after the earphone 1 acquires the period of the heart rate signal, the heart rate value of the object to be detected may be determined according to the period and the preset time period. The preset time period may be, for example, one minute, half minute, etc., and may be determined according to the needs of the user.

Continuing to refer to the example shown in FIG. 4 above, for example, assuming that the preset time period is one minute, the earphone 1 can determine the period of the heart rate signal according to the period of the heart rate signal and the preset after the period of determining the heart rate signal is 0.71S. The time period determines that the heart rate value of the object to be detected is 84 times/minute.

After the execution of S205, the heart rate detection of the object to be detected is completed.

Optionally, in another implementation manner of the present invention, after the foregoing step S205, the method may further include: the earphone 1 outputting a heart rate value of the object to be detected.

Specifically, after the earphone 1 determines the heart rate value of the object to be detected, the heart rate value may be output to the object to be detected through the speaker or display screen (not shown in FIG. 3), or may be sent to the earphone 1 The terminal corresponding to the headset 1 is output to the object to be detected through the terminal, so that the object to be detected can know its current heart rate value in time, thereby improving the user experience.

Optionally, in another implementation manner of the present invention, before the foregoing S201, the method may further include: the headset 1 receives a heart rate detection request of the object to be detected.

Specifically, when the object to be detected needs to detect its own heart rate, the heart rate detection request may be sent to the earphone 1 by manually triggering a switch corresponding to the heart rate detection on the earphone 1 (not shown in FIG. 3). In a manner, the heart rate detection request is input to the earphone 1 so that the earphone 1 performs heart rate detection on the object to be detected after receiving the heart rate detection request. In this way, it is possible to prevent the earphone 1 from being in a state of detecting the heart rate of the object to be detected, and therefore, the power consumption of the earphone 1 can be reduced.

The heart rate detecting method provided by the embodiment of the present invention, when the heart rate detecting system is a wearable device, the wearable device passes through a microphone or a speaker inherent thereto, or a microphone or a speaker inherent to the peripheral device connected to the wearable device. Can be under the closed field formed by the body of the object to be tested, Obtaining a low frequency sound signal carrying a heart rate signal of the object to be detected, so that the wearable device can acquire a heart rate signal corresponding to the heart rate of the object to be detected through the low frequency sound signal, thereby determining the heart rate value of the object to be detected by the heart rate signal . Therefore, the heart rate detecting method provided by the embodiment of the present invention reduces the cost of the wearable device when the wearable device realizes heart rate detection.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 5 is a schematic structural diagram of Embodiment 1 of a heart rate detection system according to an embodiment of the present invention. As shown in FIG. 5, the heart rate detection system may include: a first acquisition module 11, a second acquisition module 12, and a determination module 13;

The first acquisition module 11 can be configured to acquire a low-frequency sound signal of the object to be detected through a microphone or a speaker under a closed field formed by the body of the object to be detected; wherein the low-frequency sound signal includes a heart rate signal of the object to be detected;

The second obtaining module 12 is configured to obtain a heart rate signal according to the low frequency sound signal acquired by the first acquiring module 11;

The determining module 13 is configured to determine a heart rate value of the object to be detected according to the waveform of the heart rate signal acquired by the second acquiring module 12 .

The heart rate detection system provided by the embodiment of the present invention can perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

Optionally, the determining module 13 is configured to determine a period of the heart rate signal according to the waveform of the heart rate signal, and determine a heart rate value of the object to be detected according to the period of the heart rate signal and the preset time period.

FIG. 6 is a schematic structural diagram of a second embodiment of a heart rate detecting system according to an embodiment of the present invention. On the basis of the embodiment shown in FIG. 5, as shown in FIG. 6, the heart rate detecting system may further include:

The output module 14 is configured to output a heart rate value of the object to be detected after the determining module 13 determines the heart rate value of the object to be detected.

FIG. 7 is a schematic structural diagram of Embodiment 3 of a heart rate detecting system according to an embodiment of the present invention. On the basis of the foregoing embodiment shown in FIG. 6, as shown in FIG. 7, the second acquiring mode of the heart rate detecting system. The block 12 may include: a first determining unit 121 and a second determining unit 122, where

The first determining unit 121 is configured to determine a magnitude of the standard heart rate signal according to a sound level of the standard heart rate signal;

The second determining unit 122 may be configured to determine a sound signal that satisfies the amplitude of the standard heart rate signal determined by the first determining unit 121 among the low frequency sound signals as a heart rate signal.

FIG. 8 is a schematic structural diagram of a fourth embodiment of the heart rate detection system according to the embodiment of the present invention. On the basis of the embodiment shown in FIG. 6 , as shown in FIG. 8 , the second acquisition module 12 of the heart rate detection system may include: The amplifying unit 123 and the third determining unit 124, wherein

The amplifying unit 123 is configured to perform power amplification on the standard heart rate signal and the low frequency sound signal to obtain the amplified standard heart rate signal and the amplified low frequency sound signal;

The third determining unit 124 is configured to determine the amplitude of the amplified standard heart rate signal according to the sound level of the amplified standard heart rate signal, and satisfy the amplitude of the amplified standard heart rate signal in the amplified low frequency sound signal The signal is determined as a heart rate signal.

Optionally, in another implementation manner of the present invention, the heart rate detection system may further include: a receiving module, configured to receive a heart rate detection of the object to be detected before the first acquiring module 11 acquires the low frequency sound signal of the object to be detected request.

FIG. 9 is a schematic structural diagram of Embodiment 5 of a heart rate detection system according to an embodiment of the present invention. As shown in FIG. 9, the heart rate detection system may include: an input device 91, a processor 92 (such as a CPU or a single chip microcomputer), a memory 93, and at least A communication bus 94. The communication bus 94 is used to implement a communication connection between components. The memory 93 may include a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory. Various programs may be stored in the memory 93. Completing various processing functions and implementing the method steps of the embodiment;

The input device 91 can be configured to acquire a low frequency sound signal of the object to be detected under a closed field formed by the body of the object to be detected; wherein the low frequency sound signal includes a heart rate signal of the object to be detected; optionally, the input device 91 Can be a speaker, a microphone, or a microphone And speakers.

The processor 92 is configured to acquire a heart rate signal according to the low frequency sound signal acquired by the input device 91, and determine a heart rate value of the object to be detected according to the waveform of the heart rate signal.

FIG. 10 is a schematic structural diagram of a sixth embodiment of a heart rate detecting system according to an embodiment of the present invention. On the basis of the embodiment shown in FIG. 9 , as shown in FIG. 10 , the heart rate detecting system may further include:

The output device 95 can be configured to output a heart rate value of the object to be detected after the processor 92 determines the heart rate value of the object to be detected.

Optionally, the processor 92 is configured to obtain a heart rate signal according to the low frequency sound signal acquired by the input device 91, and specifically:

The processor 92 is specifically configured to determine a magnitude of a standard heart rate signal according to a sound level of the standard heart rate signal, and determine a sound signal of the low frequency sound signal that satisfies a magnitude of the standard heart rate signal as a heart rate signal;

or,

The processor 92 is specifically configured to separately perform power amplification on the standard heart rate signal and the low frequency sound signal to obtain the amplified standard heart rate signal and the amplified low frequency sound signal; and determine the amplification according to the sound level of the amplified standard heart rate signal. The amplitude of the subsequent standard heart rate signal determines the sound signal of the amplified low frequency sound signal that satisfies the amplitude of the amplified standard heart rate signal as a heart rate signal.

Optionally, the processor 92 is configured to determine a heart rate value of the object to be detected according to a waveform of the heart rate signal, which may be specifically:

The processor 92 is specifically configured to determine a period of the heart rate signal according to a waveform of the heart rate signal, and determine a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.

Optionally, the heart rate detection system may further include a receiver (not shown), and may be configured to receive a heart rate detection request of the object to be detected before the input device 91 acquires the low frequency sound signal of the object to be detected.

As described in the above embodiments, the heart rate detecting system according to the embodiment of the present invention may be wearable. The device (for example, a smart bracelet, a headset, etc.) may also be a mobile terminal (for example, a mobile phone or the like), a tablet computer, or the like, and may include both a wearable device and a mobile terminal. When the heart rate detecting system includes the wearable device and the mobile terminal, the devices of the heart rate detecting system may be separately disposed on the wearable device and the mobile terminal in a distributed manner, and may be specifically configured according to user requirements or products. determine.

In the following, taking the heart rate detection system as an example of the earphone, the specific components of the earphone are specifically introduced:

FIG. 11 is a structural block diagram of a heart rate detecting system according to an embodiment of the present invention. Referring to FIG. 11, the earphone may include components such as a radio frequency (RF) circuit 1110, a memory 1120, an audio circuit 1130, a processor 1140, and a power source 1150. It will be understood by those skilled in the art that the structure of the earphone shown in FIG. 11 does not constitute a limitation on the earphone. In specific implementation, the earphone may include more or less components than those illustrated, or may combine some components. Or different component arrangements, for example, the earphone may further include: a touch screen, a display unit, a sensor, a wireless fidelity (WiFi) module, a Bluetooth module, a GPS module, various motion sensors (acceleration sensor, gravity sensor, gyro Instruments, barometers, hygrometers, thermometers, etc.), cameras, etc., will not be described here.

The RF circuit 1110 can be used for receiving and transmitting information in the transmission and reception information, and in particular, the heart rate detection request of the object to be detected sent by the terminal to be detected is received by the processor, and then processed by the processor 1140; The heart rate value of the object to be detected determined by the processor 1140 is transmitted to the terminal. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1110 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.

The memory 1120 can be used to store software programs and modules, and the processor 1140 executes various functional applications and data of the headphones by running software programs and modules stored in the memory 1120. deal with. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a positioning function, a step counting function, etc.), and the like; the storage data area may be stored according to the earphone. Use the created data (such as audio data, heart rate data, etc.). Moreover, memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The speaker 1131 and the microphone 1132 (i.e., the input device in this embodiment) in the audio circuit 1130 can provide an audio interface between the object to be detected and the earphone. The speaker 1131 and the microphone 1132 can be used to collect the low frequency sound signal, and convert the collected low frequency sound signal into an electrical signal, and then sent to the processor 1140 for processing, or sent to the terminal corresponding to the earphone via the RF circuit 1110, so that The terminal further processes the low frequency sound signal.

The processor 1140 is a control center for the headset that connects various portions of the entire headset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The headset's various functions and processing data allow for overall monitoring of the headset. Optionally, the processor 1140 may include one or more processing units; preferably, the processor 1140 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1140. In the embodiment of the present invention, the processor 1140 can be used to perform the method embodiment of the heart rate detection method described above, and the implementation principle and technical effects are similar, and details are not described herein again.

The earphone may also include a power source 1150 (such as a battery) for powering various components. Preferably, the power source may be logically connected to the processor 1140 through a power management system to manage functions such as charging, discharging, and power management through a power management system. .

In the embodiment of the present invention, the headset may be used to perform the foregoing embodiment of the heart rate detection method, and the implementation principle and technical effects are similar, and details are not described herein again.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that Modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A heart rate detecting method, comprising:

The low-frequency sound signal of the object to be detected is acquired by the heart rate detecting system, and the heart rate signal of the object to be detected is included in the closed field formed by the body of the object to be detected;

The heart rate detection system acquires the heart rate signal according to the low frequency sound signal;

The heart rate detecting system determines a heart rate value of the object to be detected according to a waveform of the heart rate signal.
The method according to claim 1, wherein the heart rate detecting system acquires a heart rate signal according to the low frequency sound signal, and specifically includes:

The heart rate detection system determines a magnitude of the standard heart rate signal based on a sound level of a standard heart rate signal;

The heart rate detecting system determines a sound signal of the low frequency sound signal that satisfies the amplitude of the standard heart rate signal as the heart rate signal.
The method according to claim 1, wherein the heart rate detecting system acquires a heart rate signal according to the low frequency sound signal, and specifically includes:

The heart rate detecting system respectively performs power amplification on the standard heart rate signal and the low frequency sound signal to obtain an amplified standard heart rate signal and an amplified low frequency sound signal;

The heart rate detecting system determines the amplitude of the amplified standard heart rate signal according to the sound level of the amplified standard heart rate signal, and satisfies the amplified standard heart rate signal in the amplified low frequency sound signal The amplitude of the sound signal is determined as the heart rate signal.
The method according to any one of claims 1 to 3, wherein the heart rate detecting system determines the heart rate value of the object to be detected according to the waveform of the heart rate signal, and specifically includes:

The heart rate detecting system determines a period of the heart rate signal according to a waveform of the heart rate signal;

The heart rate detecting system determines a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.
The method according to any one of claims 1 to 4, wherein after the heart rate detecting system determines the heart rate value of the object to be detected, the method further comprises:

The heart rate detection system outputs a heart rate value of the object to be detected.
A heart rate detection system, comprising:

a first acquisition module, configured to acquire, by using a microphone or a speaker, a low-frequency sound signal of the object to be detected, where the low-frequency sound signal includes a heart rate signal of the object to be detected, in a closed field formed by a body of the object to be detected;

a second acquiring module, configured to acquire a heart rate signal according to the low frequency sound signal acquired by the first acquiring module;

And a determining module, configured to determine a heart rate value of the object to be detected according to a waveform of the heart rate signal acquired by the second acquiring module.
The system of claim 6 wherein the second acquisition module comprises:

a first determining unit, configured to determine a magnitude of the standard heart rate signal according to a sound level of the standard heart rate signal;

And a second determining unit, configured to determine, as the heart rate signal, a sound signal of the low frequency sound signal that satisfies a magnitude of a standard heart rate signal determined by the first determining unit.
The system of claim 6 wherein the second acquisition module comprises:

An amplifying unit, configured to perform power amplification on the standard heart rate signal and the low frequency sound signal, to obtain an amplified standard heart rate signal and an amplified low frequency sound signal;

a third determining unit, configured to determine a magnitude of the amplified standard heart rate signal according to a sound level of the amplified standard heart rate signal, and satisfy the enlarged standard in the amplified low frequency sound signal The sound signal of the amplitude of the heart rate signal is determined as the heart rate signal.
A system according to any one of claims 6-8, wherein

The determining module is configured to determine a period of the heart rate signal according to a waveform of the heart rate signal, and determine a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.
The system of any of claims 6-9, wherein the system further comprises:

And an output module, configured to output a heart rate value of the object to be detected after the determining module determines the heart rate value of the object to be detected.
A heart rate detection system, comprising:

An input device, configured to acquire a low frequency sound signal of the object to be detected under a closed field formed by a body of the object to be detected, where the low frequency sound signal includes a heart rate signal of the object to be detected;

a processor, configured to acquire a heart rate signal according to the low frequency sound signal acquired by the input device, and And determining a heart rate value of the object to be detected according to a waveform of the heart rate signal.
The system according to claim 11, wherein the acquiring the heart rate signal according to the low frequency sound signal acquired by the input device comprises:

The amplitude of the standard heart rate signal is determined according to a sound level of the standard heart rate signal, and a sound signal of the low frequency sound signal that satisfies the amplitude of the standard heart rate signal is determined as the heart rate signal.
The system according to claim 11, wherein the acquiring the heart rate signal according to the low frequency sound signal acquired by the input device comprises:

And respectively performing power amplification on the standard heart rate signal and the low frequency sound signal to obtain an amplified standard heart rate signal and the amplified low frequency sound signal; and determining the amplified standard according to the sound level of the amplified standard heart rate signal The amplitude of the heart rate signal is determined as the heart rate signal of the amplified low frequency sound signal that satisfies the amplitude of the amplified standard heart rate signal.
The system according to any one of claims 11 to 13, wherein the determining the heart rate value of the object to be detected according to the waveform of the heart rate signal comprises:

Determining a period of the heart rate signal according to a waveform of the heart rate signal, and determining a heart rate value of the object to be detected according to a period of the heart rate signal and a preset time period.
The system of any of claims 11-14, wherein the system further comprises:

And an output device, configured to output a heart rate value of the object to be detected after the processor determines the heart rate value of the object to be detected.
A system according to any of claims 11-15, wherein the input device is a microphone and/or a speaker.