CN112826488A - Heart rate detection terminal and method - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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Abstract
The application discloses a heart rate detection terminal and method. The heart rate detection terminal comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for receiving an electric signal from at least one infrared sensor, the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected; the processing unit is used for carrying out digital processing on the electric signal to obtain a first processing result and executing compensation processing on the first processing result according to the trigger correction unit; a correction unit that performs compensation processing on the first processing result. The not good technical problem of rhythm of the heart check out test set effect has been solved in this application. Heart rate detection terminal through this application not only possesses the advantage of low-power consumption, low error, and dresses comfortablely.
Description
Technical Field
The application relates to the field of intelligent hardware, in particular to a heart rate detection terminal and method.
Background
Heart rate is an important indicator for assessing many health conditions and health risks. On some commercialized wearable devices, such as smart watch, motion bracelet, and electrocardio guardianship paster, can provide the index of health status.
The wearable device is not suitable for continuously detecting the heart rate for a long time due to the problems of overlarge power consumption, uncomfortable wearing and the like. Some solutions employ contactless photoplethysmography (PPG), but the PPG test error is larger if in activities involving arm motion. In other solutions, a PPG sensor is implanted in the headset, but the measurement process is more complicated due to the higher power consumption of the overall product and different requirements for the light source for different skin colors.
Aiming at the problem of poor effect of the center rate detection equipment in the related art, an effective solution is not provided at present.
Disclosure of Invention
The main purpose of the application is to provide a heart rate detection terminal and a heart rate detection method, so that the problem of poor effect of heart rate detection equipment is solved.
In order to achieve the above object, according to one aspect of the present application, a heart rate detecting terminal is provided.
Heart rate detection terminal according to this application includes: the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected; the processing unit is used for carrying out digital processing on the electric signal to obtain a first processing result and executing compensation processing on the first processing result according to the trigger correction unit; a correction unit that performs compensation processing on the first processing result.
Further, still include: the first equipment detects an electric signal generated in a heat transfer process of the object to be measured due to a temperature difference.
Further, still include: and the wearable second equipment at least comprises a wireless communication module and sends the first processing result to third equipment.
Further, the third device comprises at least one display screen.
Further, the second device includes at least one of: bluetooth headset, hearing aid equipment.
Further, the correction unit includes: a temperature sensor for detecting a temperature of the second device; the temperature sensor is further configured to perform compensation processing on the first processing result according to the temperature.
Further, the processing unit includes: the infrared sensor comprises an amplifier unit, a filter unit, an analog-to-digital converter unit and a digital processing unit, wherein the amplifier unit amplifies a voltage signal output by the infrared sensor, the filter unit performs band-pass filtering, the analog-to-digital converter unit performs analog-to-digital converter processing, and the digital processing unit performs digital processing.
In order to achieve the above object, according to another aspect of the present application, there is provided a heart rate detection terminal including: the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected; the reading unit reads the electric signal to obtain a heart rate detection result; and the correction unit is used for executing compensation processing on the heart rate detection result.
In order to achieve the above object, according to still another aspect of the present application, there is provided a heart rate detection terminal including: the infrared sensing unit is used for detecting an electric signal generated in the heat transfer process of the target to be detected due to temperature difference; the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected; the reading unit reads the electric signal to obtain a heart rate detection result; and the sending unit is used for sending the heart rate detection result to a third terminal matched with the second terminal through the second terminal.
In order to achieve the above object, according to still another aspect of the present application, there is provided a heart rate detection method including: receiving an electrical signal from at least one infrared sensor, wherein the electrical signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in an ear of the target to be detected; the electric signal is processed digitally to obtain a first processing result, and compensation processing is performed on the first processing result according to a trigger correction unit; and executing compensation processing on the first processing result.
In this application embodiment heart rate detection terminal and method adopt the receiving element, receive the signal of telecommunication that comes from at least one infrared sensor, wherein, the signal of telecommunication obtains via the temperature variation conversion of the target that awaits measuring, temperature variation is located the mode of the target that awaits measuring in the ear, through processing unit, will the signal of telecommunication obtains first processing result via digital processing, and it is right according to triggering correction unit first processing result execution compensation is handled, correction unit, right first processing result execution compensation is handled, has reached the purpose of the in-the-ear detection heart rate to realized low-power consumption, low error and dressed comfortable technological effect, and then solved the not good technical problem of heart rate check out test set effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic diagram of an internal structure of a heart rate detection terminal according to an embodiment of the application;
fig. 2 is a schematic structural diagram of a heart rate detection terminal according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating an implementation principle of a heart rate detection terminal according to an embodiment of the present application;
fig. 4 is a schematic diagram of an internal structure of a heart rate detection terminal according to an embodiment of the application;
fig. 5 is a schematic diagram of an internal structure of a heart rate detection terminal according to an embodiment of the application;
fig. 6 is a schematic flow chart of a detection method of a heart rate detection terminal according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating an effect of a detection method of a heart rate detection terminal according to an embodiment of the application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
As shown in fig. 1, the heart rate detection terminal in the embodiment of the present application includes: a receiving unit 100, configured to receive an electrical signal from at least one infrared sensor, where the electrical signal is obtained by converting a temperature change of a target to be detected, and the temperature change is located in an ear of the target to be detected; the processing unit 200 is used for performing digital processing on the electric signal to obtain a first processing result, and performing compensation processing on the first processing result according to the trigger correction unit; and a correction unit 300 that performs compensation processing on the first processing result. The receiving unit 100 is used for receiving an electrical signal from at least one infrared sensor, and the electrical signal is obtained by converting the temperature change of the object to be measured, which is located in the ear of the object to be measured. Then, the processing unit 200 processes the electrical signal in the receiving unit 100 to obtain a preliminary detection result, which can be used to characterize the heart rate value, and the correcting unit 300 can correct the preliminary detection result according to the detected related temperature parameter, so that the obtained result can be used as a result for characterizing the heart rate value.
From the above description, it can be seen that the following technical effects are achieved by the present application:
adopt receiving element, receive the signal of telecommunication that comes from at least one infrared sensor, wherein, the signal of telecommunication obtains via the temperature variation conversion of the target that awaits measuring, temperature variation is located the mode of the target that awaits measuring in the ear, through processing unit, will the signal of telecommunication obtains first processing result via digital processing, and is right according to triggering correction unit first processing result carries out the compensation and handles, and correction unit is right first processing result carries out the compensation and handles, has reached the purpose that detects the rhythm of the heart in the ear to low-power consumption, low error and the comfortable technological effect of wearing have been realized, and then have solved the not good technical problem of rhythm of the heart check out test set effect.
As an optional implementation manner of the present application, as shown in fig. 2, the detection terminal further includes: the first device 1001, detects an electrical signal generated in a heat conduction process of the object to be measured due to a temperature difference. The first device 1001 may be used to detect an electrical signal generated during heat transfer of the target object due to a temperature difference.
Preferably, the first device 1001 comprises at least one infrared sensor.
Specifically, in the central portion where the core temperature of the human body develops in major organs of the human body such as heart, lung, liver, etc., heat is transferred from arteries to the rest of the human body through fresh blood. And the blood flow from the artery to the skin is at the same frequency as the heart beats during the transfer of the biological heat from the core of the body to the outer layers of the skin. Since the ambient temperature is typically lower than the core temperature (i.e., 37.5 degrees celsius), a cooling effect occurs from the skin to the environment, and heat transfer from the blood to the surrounding tissue and environment occurs. This heat transfer of fresh blood results in very small temperature changes that can be measured by the infrared sensor and converted into weak electrical signals. The first device 1001 is used to detect the electrical signal generated during the heat transfer of the target object due to the temperature difference.
The heart rate detection terminal in the embodiment of the application adopts the infrared sensor, so that the equipment has lower power consumption, and is favorable for long-time use of battery-powered equipment compared with a PPG sensor adopted by the related technology.
As an optional implementation manner of the present application, as shown in fig. 2, the detection terminal further includes: wearable second device 1002, said second device 1002, comprising at least one wireless communication module, sends said first processing result to a third device. And sending the first processing result to a third device through the wireless communication module of the second device 1002. It is to be noted that the first processing result may be after being corrected by the correction unit 300 or uncorrected.
Optionally, the processing unit 200 and the receiving unit 100 may use the second device as a carrier.
In one embodiment, the second device includes at least one of: bluetooth headset, hearing aid equipment. Namely, the processing result is sent to the third device through the wireless communication module in the Bluetooth earphone and/or the hearing aid device.
In the embodiment of the application, the error caused by the motion and the contour of the ear cavity in the whole heart rate detection process is small. Meanwhile, the second equipment is used as a carrier, so that the wearing is comfortable.
As an alternative embodiment of the present application, as shown in fig. 2, the third device 1003 includes at least one display screen. The received processing result may be displayed through the display screen by the third device 1003.
In one embodiment, the calibration unit 300 includes: a temperature sensor for detecting a temperature of the second device; the temperature sensor is further configured to perform compensation processing on the first processing result according to the temperature.
Optionally, the second device of the correction unit 300 may be a carrier.
In particular, the temperature sensor may be configured to detect a temperature of the second device, and perform compensation processing on the first processing result according to the detected temperature.
In one embodiment, the temperature of the second device may cause errors in the heart rate test, and the temperature sensor may be used to test the temperature of the headset and provide a digitized output to compensate for the errors.
In one embodiment, the processing unit 200 includes: the infrared sensor comprises an amplifier unit, a filter unit, an analog-to-digital converter unit and a digital processing unit, wherein the amplifier unit amplifies a voltage signal output by the infrared sensor, the filter unit performs band-pass filtering, the analog-to-digital converter unit performs analog-to-digital converter processing, and the digital processing unit performs digital processing.
In specific implementation, the processing unit 200 amplifies the voltage signal output by the infrared sensor through the amplifier unit, performs band-pass filtering through the filter unit, performs analog-to-digital converter processing through the analog-to-digital converter unit, and performs digital processing through the digital processing unit.
Example two
According to an embodiment of the present application, there is provided a heart rate detection terminal, as shown in fig. 4, the terminal includes: a receiving unit 100, configured to receive an electrical signal from at least one infrared sensor, where the electrical signal is obtained by converting a temperature change of a target to be detected, and the temperature change is located in an ear of the target to be detected; the reading unit 400 reads the electric signal to obtain a heart rate detection result; and a correction unit 300 for performing compensation processing on the heart rate detection result. The receiving unit 100 is used for receiving an electrical signal from at least one infrared sensor, and the electrical signal is obtained by converting the temperature change of the object to be measured, which is located in the ear of the object to be measured. The electrical signal in the receiving unit 100 is read by the readout unit 400 to obtain a heart rate detection result, and the correction unit 300 performs compensation processing on the heart rate detection result.
As an optional implementation manner of the present application, at least one infrared sensor is further built in the heart rate detection terminal. Since the core temperature in the human body develops in the central part where the main organs of the human body, such as the heart, lungs, liver, etc., are located, heat is transferred from the arteries to the rest of the body through the fresh blood. And the blood flow from the artery to the skin is at the same frequency as the heart beats during the transfer of the biological heat from the core of the body to the outer layers of the skin. Since the ambient temperature is typically lower than the core temperature (i.e., 37.5 degrees celsius), a cooling effect occurs from the skin to the environment, and heat transfer from the blood to the surrounding tissue and environment occurs. This heat transfer of fresh blood results in very small temperature changes that can be measured by the infrared sensor and converted into weak electrical signals. The infrared sensor can be used for detecting an electric signal generated in the heat transfer process of the target to be detected due to temperature difference.
In one embodiment, the heart rate detection terminal may use a bluetooth headset or a hearing aid as a carrier.
EXAMPLE III
According to an embodiment of the present application, there is provided a heart rate detection terminal, as shown in fig. 5, the terminal includes: an infrared sensing unit 500 for detecting an electrical signal generated in a heat transfer process of a target to be measured due to a temperature difference; a receiving unit 100, configured to receive an electrical signal from at least one infrared sensor, where the electrical signal is obtained by converting a temperature change of a target to be detected, and the temperature change is located in an ear of the target to be detected; the reading unit 400 reads the electric signal to obtain a heart rate detection result; and the sending unit 600 sends the heart rate detection result to a third terminal matched with the second terminal through the second terminal.
The infrared sensing unit 500 may be configured to detect an electrical signal generated during heat transfer of the target object due to a temperature difference. Specifically, in the central portion where the core temperature of the human body develops in major organs of the human body such as heart, lung, liver, etc., heat is transferred from arteries to the rest of the human body through fresh blood. And the blood flow from the artery to the skin is at the same frequency as the heart beats during the transfer of the biological heat from the core of the body to the outer layers of the skin. Since the ambient temperature is typically lower than the core temperature (i.e., 37.5 degrees celsius), a cooling effect occurs from the skin to the environment, and heat transfer from the blood to the surrounding tissue and environment occurs. This heat transfer of fresh blood results in very small temperature changes that can be measured by the infrared sensor and converted into weak electrical signals. The infrared sensing unit 500 may be used to detect an electrical signal generated during the heat transfer of the target due to the temperature difference.
The receiving unit 100 is used for receiving an electrical signal from at least one infrared sensor, and the electrical signal is obtained by converting the temperature change of the object to be measured, which is located in the ear of the object to be measured. The electrical signal in the receiving unit 100 is read by the reading unit 400 to obtain a heart rate detection result, and the heart rate detection result is sent to a third terminal matched with the second terminal through the second terminal by the sending unit 600.
In one embodiment, the second device 1002 includes at least one wireless communication module, and sends the first processing result to a third device. And sending the first processing result to a third device through the wireless communication module of the second device 1002. It is to be noted that the first processing result may be after being corrected by the correction unit 300 or uncorrected.
Optionally, the processing unit 200 and the receiving unit 100 may use the second device as a carrier.
In one embodiment, the second device includes at least one of: bluetooth headset, hearing aid equipment. Namely, the processing result is sent to the third device through the wireless communication module in the Bluetooth earphone and/or the hearing aid device.
In one embodiment, the third device 1003 includes at least one display screen. The received processing result may be displayed through the display screen by the third device 1003.
In a specific embodiment, the apparatus further comprises a correction unit 300, wherein the correction unit 300 comprises: a temperature sensor for detecting a temperature of the second device; the temperature sensor is further configured to perform compensation processing on the first processing result according to the temperature.
Optionally, the second device of the correction unit 300 may be a carrier.
In particular, the temperature sensor may be configured to detect a temperature of the second device, and perform compensation processing on the first processing result according to the detected temperature.
In one embodiment, the temperature of the second device may cause errors in the heart rate test, and the temperature sensor may be used to test the temperature of the headset and provide a digitized output to compensate for the errors.
Example four
According to an embodiment of the present application, there is also provided a heart rate detection method for implementing the heart rate detection terminal, as shown in fig. 6, the method includes:
s601, receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected;
s602, performing digital processing on the electric signal to obtain a first processing result, and performing compensation processing on the first processing result according to a trigger correction unit;
s603, performing compensation processing on the first processing result.
In specific implementation, the electric signal from at least one infrared sensor is received, and the electric signal is converted by the temperature change of the object to be detected, and the temperature change is positioned in the ear of the object to be detected. Then, obtain a preliminary testing result after handling the electric signal that receives, it can be used to the representation heart rate numerical value, and the temperature parameter of the correlation on the wearable equipment that obtains is detected according to it again corrects preliminary testing result to the result that obtains can be regarded as the result that is used for representing heart rate numerical value.
Since the core temperature in the human body develops in the central part where the main organs of the human body, such as the heart, lungs, liver, etc., are located, heat is transferred from the arteries to the rest of the body through the fresh blood. And the blood flow from the artery to the skin is at the same frequency as the heart beats during the transfer of the biological heat from the core of the body to the outer layers of the skin. Since the ambient temperature is typically lower than the core temperature (i.e., 37.5 degrees celsius), a cooling effect occurs from the skin to the environment, and heat transfer from the blood to the surrounding tissue and environment occurs. This heat transfer of fresh blood results in very small temperature changes that can be measured by the infrared sensor and converted into weak electrical signals. The infrared sensor can be used for detecting an electric signal generated in the heat transfer process of the target to be detected due to temperature difference. Since the temperature of the wearable device can cause errors in the heart rate test, the temperature sensor can be used to test the temperature of the headset and provide a digitized output to compensate for the errors.
In order to better understand the heart rate detection terminal, the following explains the technical solutions with reference to the preferred embodiments, but the technical solutions of the embodiments of the present invention are not limited.
The heart rate detection terminal in this application, the system is simple, and the integrated level is high, compares in the PPG sensor among the correlation technique, need not extra light source and drive circuit, and is not sensitive to the complexion difference.
Heart rate test terminal low-power consumption in this application, it is small and exquisite, and wear comfortablely, not only can provide the sign for professional sportsman and detect, or provide real-time information feedback for individual during the amusement training, the risk crowd in the ageing population that more is about to come provides the effectual monitoring heart situation that lasts and provides the assurance.
As shown in FIG. 3, the application provides an in-ear heart rate detecting terminal applying an infrared temperature measuring principle, which can be applied to a Bluetooth headset and/or a hearing aid device and is comfortable to wear. The terminal comprises an infrared sensor and a corresponding reading chip, wherein the reading chip comprises a low-power-consumption low-noise interface circuit, a temperature sensor, an analog-to-digital converter and the like.
The implementation principle of the application is as follows:
it is possible to reduce motion artifacts due to infrared techniques while maintaining signal quality and reducing power consumption. The human skin acts as a black body radiator operating at human body temperature, generating an infrared radiation spectrum with a broad peak near λ ═ 9.5 um.
Further, the core temperature of the human body develops in the central portion where the main organs of the human body (heart, lung, liver, etc.) are located, and heat is transferred from the arteries to the rest of the human body through fresh blood. During the transfer of biological heat from the core of the body to the outer layers of the skin, the blood flow from the arteries to the skin is at the same frequency as the heart beats. Since the ambient temperature is typically lower than the core temperature (37.5 degrees celsius), a cooling effect occurs from the skin to the environment, and heat transfer from the blood to the surrounding tissue and environment occurs. Because the earphone and/or the hearing aid device are internally provided with the infrared sensor and the corresponding reading chip, the detected heart rate parameters are sent to the matched mobile phone through the earphone and/or the hearing aid device is internally provided with the Bluetooth chip.
This heat transfer from the fresh blood results in very small temperature changes that can be measured by the infrared sensor and converted into weak electrical signals. The instrumentation amplifier at the input end of the interface circuit picks up and amplifies the voltage signal output by the infrared sensor, the voltage signal is processed in a digital mode by the analog-to-digital converter through the band-pass filter and is output to the intelligent terminal through the earphone built-in Bluetooth device, as shown in fig. 7, and the heart rate detection result is displayed on the display screen of the intelligent terminal at 68.
In addition, because the temperature of the earphone can cause heart rate test errors, the temperature sensor in the reading chip can be used for testing the temperature of the earphone and providing digital output for compensating the errors. Namely, the temperature compensation for detecting the temperature of the earphone by using a temperature sensor built in a chip and improving the test accuracy.
The detection terminal in the embodiment of the application has the characteristic of low power consumption, and is favorable for long-time use of battery power supply equipment compared with a PPG sensor in the related art. In addition, the method has the advantage of low error, and compared with the related art PPG sensor, the error caused by motion and ear cavity contour is small.
It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A heart rate detection terminal, comprising:
the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected;
the processing unit is used for carrying out digital processing on the electric signal to obtain a first processing result and executing compensation processing on the first processing result according to the trigger correction unit;
a correction unit that performs compensation processing on the first processing result.
2. The terminal of claim 1, further comprising: the first device is a device for the first time,
the first device detects an electrical signal generated in a heat transfer process of the target to be measured due to a temperature difference.
3. The terminal of claim 2, further comprising: a second device that is wearable, the second device,
the second device at least comprises a wireless communication module and sends the first processing result to a third device.
4. A terminal according to claim 3, characterized in that said third device comprises at least one display screen.
5. The terminal of claim 3, wherein the second device comprises at least one of: bluetooth headset, hearing aid equipment.
6. The terminal of claim 3, wherein the correction unit comprises: a temperature sensor for detecting a temperature of the second device;
the temperature sensor is further configured to perform compensation processing on the first processing result according to the temperature.
7. The terminal of claim 1, wherein the processing unit comprises: an amplifier unit, a filter unit, an analog-to-digital converter unit, a digital processing unit,
the amplifier unit amplifies the voltage signal output by the infrared sensor, the band-pass filtering is carried out through the filter unit, the analog-to-digital converter unit carries out analog-to-digital converter processing, and the digital processing unit carries out digital processing.
8. A heart rate detection terminal, comprising:
the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected;
the reading unit reads the electric signal to obtain a heart rate detection result;
and the correction unit is used for executing compensation processing on the heart rate detection result.
9. A heart rate detection terminal, comprising:
the infrared sensing unit is used for detecting an electric signal generated in the heat transfer process of the target to be detected due to temperature difference;
the receiving unit is used for receiving an electric signal from at least one infrared sensor, wherein the electric signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in the ear of the target to be detected;
the reading unit reads the electric signal to obtain a heart rate detection result;
and the sending unit is used for sending the heart rate detection result to a third terminal matched with the second terminal through the second terminal.
10. A method of heart rate detection, comprising:
receiving an electrical signal from at least one infrared sensor, wherein the electrical signal is obtained by converting the temperature change of a target to be detected, and the temperature change is positioned in an ear of the target to be detected;
the electric signal is processed digitally to obtain a first processing result, and compensation processing is performed on the first processing result according to a trigger correction unit;
and executing compensation processing on the first processing result.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010264095A (en) * | 2009-05-15 | 2010-11-25 | Nissan Motor Co Ltd | Heart rate measuring apparatus and heart rate measuring method |
| CN204131693U (en) * | 2014-11-04 | 2015-01-28 | 青岛歌尔声学科技有限公司 | A kind of earphone and there is the wearing electronic product of body temperature monitoring function |
| CN108337592A (en) * | 2018-02-09 | 2018-07-27 | 天津大学 | Intelligent earphone with the detection mild heart rate function of ear |
| CN112043246A (en) * | 2020-07-31 | 2020-12-08 | 深圳市卓翼科技股份有限公司 | Body temperature measurement module, method and device, earphone and body temperature measurement system |
| CN112190242A (en) * | 2020-11-06 | 2021-01-08 | 维沃移动通信有限公司 | Wearable device and heart rate parameter detection method |
-
2021
- 2021-01-29 CN CN202110133243.2A patent/CN112826488A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010264095A (en) * | 2009-05-15 | 2010-11-25 | Nissan Motor Co Ltd | Heart rate measuring apparatus and heart rate measuring method |
| CN204131693U (en) * | 2014-11-04 | 2015-01-28 | 青岛歌尔声学科技有限公司 | A kind of earphone and there is the wearing electronic product of body temperature monitoring function |
| CN108337592A (en) * | 2018-02-09 | 2018-07-27 | 天津大学 | Intelligent earphone with the detection mild heart rate function of ear |
| CN112043246A (en) * | 2020-07-31 | 2020-12-08 | 深圳市卓翼科技股份有限公司 | Body temperature measurement module, method and device, earphone and body temperature measurement system |
| CN112190242A (en) * | 2020-11-06 | 2021-01-08 | 维沃移动通信有限公司 | Wearable device and heart rate parameter detection method |
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