CN113080919B - Heart rate detection method, device, equipment and computer readable storage medium - Google Patents
Heart rate detection method, device, equipment and computer readable storage medium Download PDFInfo
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- 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
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Abstract
The invention discloses a heart rate detection method, a heart rate detection device, heart rate detection equipment and a computer readable storage medium, wherein the method comprises the following steps: judging whether a wearing part corresponding to the heart rate detection equipment is human skin or not according to the sound waves transmitted by the ultrasonic sensor and the received sound waves; if the wearing part is the skin of the human body, acquiring a target distance between the heart rate detection equipment and the skin of the human body; if the target distance belongs to the preset interval, starting a heart rate detection module and acquiring first emitting light corresponding to the target distance; controlling the heart rate detection module to emit first emitting light and receiving first reflecting light corresponding to the first emitting light; and determining the heart rate acquired by the heart rate detection equipment according to the light intensity of the first reflected light and the light intensity of the first reflected light. According to the invention, the problem of inaccurate heart rate detection when the existing heart rate detection equipment is worn out of specification is solved by acquiring the distance between the heart rate detection equipment and the skin and adjusting the emitted light of the heart rate detection module according to the distance.
Description
Technical Field
The invention relates to the field of intelligent wearing, in particular to a heart rate detection method, a heart rate detection device, heart rate detection equipment and a computer readable storage medium.
Background
Heart rate check out test set such as present intelligent wrist-watch and intelligent bracelet has become the standard outfit with the heart rate detection function, accurate heart rate measurement is favorable to the user to monitor the heart rate change of self constantly, current heart rate detection method adopts the photoelectric plethysmography method mostly, through the light source with light to user's skin, then receive the reverberation, and then according to the reverberation, confirm user's heart rate, however this kind of method receives the influence of the user wearing the condition easily, if user's intelligent wrist-watch wears loosely, then can receive natural light interference in the heart rate testing process, lead to the reverberation of receipt to change, and then lead to heart rate to detect inaccurately, can not measure heart rate data even.
Disclosure of Invention
The invention mainly aims to provide a heart rate detection method, a heart rate detection device, heart rate detection equipment and a computer readable storage medium, and aims to solve the technical problem that the heart rate detection is inaccurate when the existing heart rate detection equipment is not worn in a standard way.
In addition, in order to achieve the above object, the present invention further provides a heart rate detection method, including the steps of:
judging whether the wearing part corresponding to the heart rate detection equipment is human skin or not according to the sound waves transmitted by the ultrasonic sensor and the received sound waves;
if the wearing part is human skin, acquiring a target distance between the heart rate detection module and the human skin;
if the target distance belongs to a preset interval, starting the heart rate detection module, and acquiring first emission light corresponding to the target distance;
controlling the heart rate detection module to emit the first emitting light and receiving first reflecting light corresponding to the first emitting light;
and determining the heart rate obtained by the heart rate detection equipment according to the light intensity of the first reflected light and the light intensity of the first reflected light.
Optionally, the step of determining, according to the sound waves emitted by the ultrasonic sensor and the received sound waves, whether a wearing part corresponding to the heart rate detection device is a human skin includes:
acquiring the intensity of the sound wave transmitted by the ultrasonic sensor and the intensity of the received sound wave, and calculating the wave intensity difference between the transmitted sound wave intensity and the received sound wave intensity;
and searching a substance corresponding to the wave intensity difference in a preset substance comparison table, and judging whether the wearing part corresponding to the heart rate detection equipment is human skin or not according to the substance corresponding to the wave intensity difference.
Optionally, if the wearing part is a human skin, the step of obtaining the target distance between the heart rate detection module and the human skin includes:
if the wearing part is the skin of the human body, acquiring the time for the ultrasonic sensor to transmit the sound waves and the time for the ultrasonic sensor to receive the sound waves;
and calculating the target distance between the heart rate detection equipment and the human skin according to the time for transmitting the sound waves and the time for receiving the sound waves.
Optionally, after the step of determining the heart rate acquired by the heart rate detection device according to the light intensity of the first emitted light and the light intensity of the second emitted light, the method includes:
acquiring a first distance between the heart rate detection equipment and the skin of the human body through the ultrasonic sensor again;
if the first distance does not belong to the preset interval, closing the heart rate detection module and outputting abnormal prompt information of heart rate detection.
Optionally, after the step of acquiring, again by the ultrasonic sensor, the first distance between the heart rate detection device and the skin of the human body, the method includes:
if the first distance belongs to the preset interval, acquiring second emitted light corresponding to the first distance;
if the first distance is not equal to the target distance, controlling the heart rate detection module to emit the second emitting light and receiving second reflecting light corresponding to the second emitting light;
and determining the heart rate acquired by the heart rate detection equipment according to the light intensity of the second emitted light and the light intensity of the second reflected light.
Optionally, the step of acquiring the first emission light corresponding to the target distance includes:
acquiring ambient light information, and inquiring a preset light intensity comparison table corresponding to the ambient light information;
and searching the target light intensity corresponding to the target distance in the preset light intensity comparison table, and taking the emitted light corresponding to the target light intensity as first emitted light.
Optionally, the step of obtaining a target distance between the heart rate detection module and the skin of the human body includes:
determining a distance error according to the ultrasonic sensor and the heart rate detection module;
and calculating the distance value obtained by the ultrasonic sensor and the distance error to obtain the target distance between the heart rate detection equipment and the skin of the human body.
In addition, to achieve the above object, the present invention also provides a heart rate detecting device, including:
the judging module is used for judging whether the wearing part corresponding to the heart rate detection equipment is the human skin or not according to the sound waves transmitted by the ultrasonic sensor and the received sound waves;
the target distance acquisition module is used for acquiring a target distance between the heart rate detection module and the skin of the human body if the wearing part is the skin of the human body;
the first emitting light acquisition module is used for starting the heart rate detection module if the target distance belongs to a preset interval and acquiring first emitting light corresponding to the target distance;
the transmitting and receiving control module is used for controlling the heart rate detection module to transmit the first transmitting light and receive first reflecting light corresponding to the first transmitting light;
and the heart rate determining module is used for determining the heart rate acquired by the heart rate detecting equipment according to the light intensity of the first emitting light and the light intensity of the first reflecting light.
In addition, to achieve the above object, the present invention also provides a heart rate detecting apparatus, including: a memory, a processor and a heart rate detection program stored on the memory and executable on the processor, the heart rate detection program when executed by the processor implementing the steps of the heart rate detection method as described above.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium, on which a heart rate detection program is stored, and the heart rate detection program, when executed by a processor, implements the steps of the heart rate detection method as described above.
The embodiment of the invention provides a heart rate detection method, a heart rate detection device, heart rate detection equipment and a computer readable storage medium. According to the embodiment of the invention, the heart rate detection device transmits sound waves and receives reflected sound waves through the ultrasonic sensor, and then, according to the sound waves transmitted by the ultrasonic sensor and the received sound waves, whether a wearing part corresponding to the heart rate detection device is human skin is judged, if the wearing part corresponding to the heart rate detection device is human skin, a target distance between the heart rate detection device and the human skin is obtained, the target distance is judged, if the target distance belongs to a preset interval, a heart rate detection module in the heart rate detection device is started, first emitting light corresponding to the target distance is obtained, then, the heart rate detection module is controlled to emit the first emitting light, first reflecting light corresponding to the first emitting light is received, and finally, according to the light intensity of the first emitting light and the light intensity of the first reflecting light, the heart rate obtained by the heart rate detection device is determined.
Drawings
Fig. 1 is a schematic hardware structure diagram of an implementation manner of a heart rate detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a heart rate detection method according to the invention;
FIG. 3 is a flowchart illustrating a second embodiment of a heart rate detection method according to the present invention;
fig. 4 is a schematic diagram of functional modules of an embodiment of the heart rate detection apparatus according to the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The heart rate detection equipment provided by the embodiment of the invention can be terminals with a heart rate detection function, such as an intelligent bracelet, an intelligent watch and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer-readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a heart rate detection program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke a heart rate detection program stored in the memory 1005, which when executed by the processor, implements the operations in the heart rate detection methods provided by the embodiments described below.
Based on the hardware structure of the equipment, the embodiment of the heart rate detection method is provided.
Referring to fig. 2, in a first embodiment of the heart rate detection method of the present invention, the heart rate detection method includes:
and S10, judging whether the wearing part corresponding to the heart rate detection equipment is the human skin or not according to the sound wave transmitted by the ultrasonic sensor and the received sound wave.
The heart rate detection method in this embodiment is applied to heart rate check out test set, for example, intelligence wrist-watch and intelligent bracelet, heart rate check out test set includes heart rate detection module and ultrasonic sensor at least, heart rate detection module accessible is luminous to receive light and detects the heart rate, ultrasonic sensor is used for acquireing heart rate check out test set and wears the distance between the position, knowably, because present heart rate module only can present heart rate testing result according to physical condition and preset algorithm, as long as the object of surveying is the good reflector of light signal, through rocking constantly, extrude the measured object, the algorithm will be fitted into the heart rate with the regular change of the light signal of reflection, namely, measure other objects (for example toilet roll paper, the water-jug, plush toy etc.) also have the phenomenon that can survey the heart rate, consequently, this embodiment is at first according to the sound wave of ultrasonic sensor transmission and the sound wave of receiving, judge whether the position of wearing that corresponds with heart rate check out test set is the contact for human skin.
And S20, if the wearing part is the skin of the human body, acquiring a target distance between the heart rate detection module and the skin of the human body.
If what wear the position contact with heart rate check out test set corresponds is human skin, then ultrasonic sensor acquires human skin and heart rate and detects the distance between the module, can know, ultrasonic sensor and the adjacent setting in heart rate detection module position, the purpose is the distance value who guarantees ultrasonic sensor and acquire, be promptly user's skin with distance (being the target distance in this embodiment) between the heart rate detection module, can understand, because structural design scheduling problem leads to ultrasonic sensor and heart rate to detect when the module position sets up not closely, still need handle the distance value that ultrasonic sensor acquireed, just can turn into the target distance with the distance value that ultrasonic sensor acquireed, concrete processing method is related to with the position that ultrasonic sensor and heart rate detection module set up.
And S30, if the target distance belongs to a preset interval, starting the heart rate detection module, and acquiring first emission light corresponding to the target distance.
Know ground, the target distance is the distance between the heart rate detection module group in skin and the intelligent wrist-watch of the user who uses intelligent wrist-watch promptly, because the intelligent wrist-watch in this embodiment adopts the method of light detection heart rate, specific process is as follows: heart rate detection module beats light on user's skin, when heart pump blood, can be full of blood in the blood vessel below the skin, and blood absorbs green glow reflection red light, the heart can produce the different light reflection of colour when shrink and diastole, heart rate detection module is just through detecting the heart rate of user that these different colours are different, therefore, heart rate detection module in this embodiment is very easily influenced by external light and the blood flow condition, the user needs correctly to wear when using intelligent wrist-watch, can not wear too loosely to lead to the light leak, also can not wear too tightly to lead to the blood circulation not smooth, and the target distance in this embodiment is the distance between the skin of the user who uses intelligent wrist-watch and the heart rate detection module, the target distance is the bigger, it loosens to explain that the user wears intelligent wrist-watch, when the user wears intelligent wrist-watch loose certain degree, just can's heart rate can not be detected through heart rate detection module, and the user wears the certain degree that intelligent wrist-watch is loose and is decided to have a (between user's skin and the detection module) distance value, for example, 5 millimeters, then preset interval is 0-millimeter to 5 millimeters, when the target distance that obtains between the heart rate detection module, this kind of heart rate detection program, this kind of detection can represent the heart rate detection condition, just can be detected under this kind of heart rate detection module, the heart rate detection condition; when the target distance who acquires is greater than 5 millimeters (do not belong to preset interval promptly), show that heart rate detection module can't detect user's heart rate, under this condition, heart rate detection program just does not respond heart rate detection instruction, stops to start heart rate detection module, has played the effect that the suggestion user correctly wore intelligent wrist-watch to a certain extent.
After starting heart rate detection module, because user's skin and heart rate detection module between have certain distance, ambient light can cause certain influence to the heart rate detection, consequently, need according to the size of target distance, confirms the transmission light of heart rate detection module (the first transmission light in this embodiment promptly), and specifically how to confirm first transmission light according to the target distance, will be in the following detail.
And S40, controlling the heart rate detection module to emit the first emitting light and receiving first reflecting light corresponding to the first emitting light.
Therefore, the heart rate detection module has functions of Emitting Light and receiving Light, after the first Emitting Light is determined according to the target distance, the heart rate detection module emits the first Emitting Light to the skin of the user, and receives the Light (i.e., the first reflecting Light in the embodiment) reflected by the skin of the user, it can be understood that the smart watch further has functions of obtaining Light intensity and adjusting the Light intensity according to the heart rate detection principle, for example, the Light intensity of the Emitting Light is adjusted by adjusting the current flowing through an LED (Light Emitting Diode) lamp, and therefore, when the current flowing through the LED lamp is reduced, the Light intensity of the Emitting Light of the LED lamp is reduced; when the current flowing through the LED lamp is increased, the light intensity of the light emitted by the LED lamp is increased, a certain contrast relation is also formed between the target distance and the light intensity of the emitted light, and when the target distance is increased, the influence of external light is increased; when the target distance becomes smaller, the influence of the external light becomes smaller, and in this case, the light intensity of the emitted light is reduced by reducing the current flowing through the LED lamp, and the reduced light intensity is taken as the light intensity of the first emitted light.
And S50, determining the heart rate acquired by the heart rate detection equipment according to the light intensity of the first emitting light and the light intensity of the first reflecting light.
It is understood that the method used for heart rate detection in this embodiment may be PPG
Specifically, an LED light source in a heart rate detection module emits first reflected light to the skin of a user, and then the received first reflected light (light signal) is converted into an electrical signal through a photoelectric receiving tube in the heart rate detection module, since the blood flow rate shows a periodic rule along with the contraction and relaxation of the heart, the proportion of oxygen-containing red blood cells in the blood also shows a periodic change along with the contraction and relaxation of the heart, and therefore, the absorption degree of the first reflected light by the blood also shows a periodic change along with the contraction and relaxation of the heart, the electrical signal converted by the photoelectric receiving tube shows a periodic change along with the contraction and relaxation of the heart, the electrical signal showing a periodic change along with the contraction and relaxation of the heart is demodulated, and finally, the pulse rate of the user is calculated and is equal to the pulse rate.
Specifically, the step of step S10 refinement includes:
step a1, obtaining the intensity of the sound wave transmitted by the ultrasonic sensor and the intensity of the received sound wave, and calculating the wave intensity difference between the transmitted sound wave intensity and the received sound wave intensity.
Step a2, searching a substance corresponding to the wave intensity difference in a preset substance comparison table, and judging whether the wearing part corresponding to the heart rate detection equipment is human skin or not according to the substance corresponding to the wave intensity difference.
It should be noted that, after receiving the heart rate detection instruction, the heart rate detection program may first determine, through the ultrasonic sensor, whether the user wears the smart watch (the arm of the user), and it is known from practice that, when the smart watch is worn on a non-human tissue such as a water bottle, the heart rate may also be detected, which may cause a feeling that heart rate measurement is not dependent on a spectrum to the user, in order to avoid such a situation, in this embodiment, when receiving the heart rate detection instruction, the sound wave is further emitted through the sound wave emitting unit in the ultrasonic sensor, and an intensity of the emitted sound wave is obtained, when an intensity of the emitted sound wave is a certain intensity, it may be determined, according to an intensity of the emitted sound wave, what kind of material the sound wave is incident from air to a surface of the material, specifically, in a case that an intensity difference between acoustic impedances of two materials is larger, in this embodiment, one kind of material is air, it is necessary to verify that another kind of material is not a human skin, in this case, it is ensured that an intensity of the emitted sound wave is smaller, the air is calculated, an intensity difference between an intensity of the emitted sound wave and an intensity of a received sound wave, and if an acoustic impedance difference is larger, it is an acoustic impedance difference 3238, it is determined that an acoustic intensity of the skin is a substance corresponding to a target substance, and a target substance, that an acoustic intensity of the skin is not a target substance, and a target substance is a material corresponds to a target substance, and a material is a material.
Specifically, the step of step S20 refinement includes:
and b1, if the wearing part is the skin of the human body, acquiring the time of transmitting the sound waves and the time of receiving the sound waves by the ultrasonic sensor.
And b2, calculating the target distance between the heart rate detection equipment and the skin of the human body according to the time for transmitting the sound waves and the time for receiving the sound waves.
The sound wave transmitted back by the transmitted sound wave is received by the sound wave receiving unit in the ultrasonic sensor, namely the received sound wave in the embodiment, the intensity of the received sound wave is obtained, according to the principle of sound wave distance measurement, the time difference between the sound wave transmitting time and the sound wave receiving time is calculated, then the sound velocity is multiplied by the time difference, the obtained product is divided by two, and then a distance value is obtained.
Specifically, the step of step S20 refinement includes:
and c1, determining a distance error according to the ultrasonic sensor and the heart rate detection module.
And c2, calculating the distance value obtained by the ultrasonic sensor and the distance error to obtain a target distance between the heart rate detection equipment and the skin of the human body.
According to the technical scheme, the intelligent watch comprises a watch shell, a heart rate detection module, an ultrasonic sensor, a heart rate detection module, a vibration prompting module and a vibration prompting module, wherein the shell is provided with a convex structure, the heart rate detection module is arranged on the convex structure, the ultrasonic sensor is arranged on the convex structure, and the ultrasonic sensor is arranged on the convex structure.
Specifically, the step of step S30 refinement includes:
and d1, acquiring the ambient light information, and inquiring a preset light intensity comparison table corresponding to the ambient light information.
And d2, searching the target light intensity corresponding to the target distance in the preset light intensity comparison table, and taking the emitted light corresponding to the target light intensity as first emitted light.
It can be known that, the larger the target distance is, the more the first reflected light is scattered, the weaker the light intensity of the first reflected light is, in order to reduce the scattering of the first reflected light caused by the increase of the target distance, the light intensity of the first reflected light corresponding to the first reflected light is weakened, the light intensity of the first reflected light corresponding to the first reflected light can be enhanced by enhancing the light intensity of the first reflected light, which is equivalent to complement the scattering of the first reflected light, specifically, by obtaining the ambient light information around the smart watch, the distance and light intensity comparison table corresponding to the ambient light information is queried, and the distance and light intensity comparison table stores the distance value and the light intensity, wherein, the distance value and the light intensity have a corresponding relationship, and by querying the distance and light intensity comparison table, the target light intensity corresponding to the target distance is obtained, and the target light intensity is used as the light intensity of the first reflected light.
The heart rate detection device transmits sound waves and receives reflected sound waves through the ultrasonic sensor in the embodiment, further, according to the sound waves transmitted by the ultrasonic sensor and the received sound waves, whether the wearing position corresponding to the heart rate detection device is human skin or not is judged, if the wearing position corresponding to the heart rate detection device is human skin, a target distance between the heart rate detection device and the human skin is obtained, the target distance is judged, if the target distance belongs to a preset interval, a heart rate detection module in the heart rate detection device is started, first emitting light corresponding to the target distance is obtained, then the heart rate detection module is controlled to emit the first emitting light, first reflecting light corresponding to the first emitting light is received, finally, the heart rate obtained by the heart rate detection device is determined according to the light intensity of the first emitting light and the light intensity of the first reflecting light, the distance between the heart rate detection device and the skin is obtained, the emitting light of the heart rate detection module is adjusted according to the distance, and the problem that when the existing heart rate detection device is not standard in wearing is solved.
Further, with reference to fig. 3, a second embodiment of the method of the present invention is proposed on the basis of the above-described embodiment of the present invention.
This embodiment is a step after step S50 in the first embodiment, and the present embodiment is different from the above-described embodiments of the present invention in that:
and S60, acquiring a first distance between the heart rate detection equipment and the skin of the human body through the ultrasonic sensor again.
And S70, if the first distance does not belong to the preset interval, closing the heart rate detection module, and outputting abnormal heart rate detection prompt information.
According to the technical scheme, the method for detecting the heart rate of the intelligent watch comprises the steps that after the heart rate detection module is started, because a user uses the intelligent watch to detect the heart rate, the situation of activity can exist, the user moves when the heart rate is detected, the target distance can change constantly, after the heart rate detection module is started, the distance between the skin of the user and the heart rate detection module (namely the first distance in the embodiment) is obtained for the second time, whether the first distance belongs to a preset interval or not can be judged at first, the ground can be known, the first distance can be equal to the target distance in the embodiment, the target distance can be larger than the target distance, the target distance can also be smaller than the target distance, if the first distance does not belong to the preset interval, the situation that the user wears the intelligent watch to be too loose is shown, the heart rate detection module cannot detect the heart rate of the user, the heart rate detection module can be closed by a heart rate detection program, abnormal prompt information of heart rate detection is output, the tightness of wearing the intelligent watch can be adjusted according to the abnormal prompt information of the heart rate detection by the user, when the target distance value obtained by the ultrasonic sensor belongs to the preset period again, the heart rate detection module is started again.
Specifically, steps subsequent to step S60 include:
step e1, if the first distance belongs to the preset interval, acquiring second emitted light corresponding to the first distance.
And e2, if the first distance is not equal to the target distance, controlling the heart rate detection module to emit the second emitting light and receiving second reflecting light corresponding to the second emitting light.
And e3, determining the heart rate acquired by the heart rate detection equipment according to the light intensity of the second emitted light and the light intensity of the second reflected light.
Therefore, after the heart rate detection module is started, when the acquired first distance belongs to the preset interval, the second emitting light is determined according to the first distance, if the first distance is equal to the target distance, the light intensity of the second emitting light is determined to be the same as that of the first emitting light, if the first distance is not equal to the target distance, the light intensity of the second emitting light is determined to be different from that of the first emitting light, if the first distance is smaller than the target distance, the light intensity of the second emitting light is smaller than that of the first emitting light, if the first distance is larger than the target distance, the light intensity of the second emitting light is larger than that of the first emitting light, then the second emitting light is emitted through the heart rate detection module, the second emitting light corresponding to the second emitting light is received, and finally, the heart rate of the user is determined according to the light intensity of the second emitting light and the light intensity of the second emitting light.
Through adjustment heart rate detection module in this embodiment, the light intensity that makes the transmission light changes along with the change of target distance, when heart rate check out test set wore the denormal, has improved the rate of accuracy that the heart rate detected.
In addition, referring to fig. 4, an embodiment of the present invention further provides a heart rate detection apparatus, where the heart rate detection apparatus includes:
the judging module 10 is used for judging whether a wearing part corresponding to the heart rate detection device is human skin according to the sound waves transmitted by the ultrasonic sensor and the received sound waves;
a target distance obtaining module 20, configured to obtain a target distance between the heart rate detection module and the skin of the human body if the wearing portion is the skin of the human body;
the first emitting light obtaining module 30 is configured to start the heart rate detection module if the target distance belongs to a preset interval, and obtain first emitting light corresponding to the target distance;
the transmitting and receiving control module 40 is used for controlling the heart rate detection module to transmit the first transmitting light and receive first reflected light corresponding to the first transmitting light;
and the heart rate determining module 50 is configured to determine the heart rate obtained by the heart rate detecting device according to the light intensity of the first reflected light and the light intensity of the first reflected light.
Optionally, the determining module 10 includes:
the ultrasonic sensor comprises an ultrasonic intensity acquisition unit, a data acquisition unit and a data processing unit, wherein the ultrasonic intensity acquisition unit is used for acquiring the intensity of the ultrasonic wave transmitted by the ultrasonic sensor and the intensity of the received ultrasonic wave and calculating the intensity difference between the transmitted intensity of the ultrasonic wave and the received intensity of the ultrasonic wave;
the judging unit is used for searching for a substance corresponding to the wave intensity difference in a preset substance comparison table and judging whether a wearing part corresponding to the heart rate detection equipment is human skin or not according to the substance corresponding to the wave intensity difference;
optionally, the target distance obtaining module 20 includes:
the time acquisition unit is used for acquiring the time for transmitting the sound waves and the time for receiving the sound waves by the ultrasonic sensor if the wearing part is the skin of the human body;
and the target distance calculation unit is used for calculating the target distance between the heart rate detection equipment and the skin of the human body according to the time for transmitting the sound waves and the time for receiving the sound waves.
Optionally, the heart rate detection apparatus includes:
the first distance acquisition module is used for acquiring a first distance between the heart rate detection equipment and the skin of the human body through the ultrasonic sensor again;
and the abnormal prompt module is used for closing the heart rate detection module if the first distance does not belong to the preset interval, and outputting abnormal prompt information of heart rate detection.
Optionally, the heart rate detection apparatus includes:
the second emitted light determining module is used for acquiring second emitted light corresponding to the first distance if the first distance belongs to the preset interval;
the heart rate detection module adjusting module is used for controlling the heart rate detection module to emit the second emitting light and receiving second reflecting light corresponding to the second emitting light if the first distance is not equal to the target distance;
and the user heart rate determining module is used for determining the heart rate acquired by the heart rate detecting equipment according to the light intensity of the second transmitting light and the light intensity of the second reflecting light.
Optionally, the first emission light obtaining module 30 includes:
the device comprises an ambient light information acquisition unit, a light intensity comparison unit and a light intensity comparison unit, wherein the ambient light information acquisition unit is used for acquiring ambient light information and inquiring a preset light intensity comparison table corresponding to the ambient light information;
and the target light intensity searching unit is used for searching the target light intensity corresponding to the target distance in the preset light intensity comparison table and taking the emitted light corresponding to the target light intensity as the first emitted light.
Optionally, the target distance obtaining module 20 includes:
the distance error determining unit is used for determining a distance error according to the ultrasonic sensor and the heart rate detection module;
and the calculating unit is used for calculating the distance value acquired by the ultrasonic sensor and the distance error to obtain a target distance between the heart rate detection equipment and the skin of the human body.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a heart rate detection program is stored on the computer-readable storage medium, and when being executed by a processor, the heart rate detection program implements operations in the heart rate detection method provided in the foregoing embodiment.
The method executed by each program module can refer to each embodiment of the method of the present invention, and is not described herein again.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity/action/object from another entity/action/object without necessarily requiring or implying any actual such relationship or order between such entities/actions/objects; the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
For the apparatus embodiment, since it is substantially similar to the method embodiment, it is described relatively simply, and reference may be made to some description of the method embodiment for relevant points. The above-described apparatus embodiments are merely illustrative, in that elements described as separate components may or may not be physically separate. Some or all modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement it without inventive effort.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the heart rate detection method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (7)
1. The utility model provides a heart rate detection method, its characterized in that, heart rate detection method is applied to heart rate check out test set, heart rate check out test set includes heart rate detection module and ultrasonic sensor, heart rate detection method includes following step:
judging whether the wearing part corresponding to the heart rate detection equipment is human skin or not according to the sound waves transmitted by the ultrasonic sensor and the received sound waves;
wherein, according to the sound wave of ultrasonic sensor transmission and the sound wave of receiving, judge whether the wearing position that heart rate check out test set corresponds is human skin's step includes:
acquiring the intensity of the sound wave transmitted by the ultrasonic sensor and the intensity of the received sound wave, and calculating the wave intensity difference between the transmitted sound wave intensity and the received sound wave intensity;
searching a substance corresponding to the wave intensity difference in a preset substance comparison table, and judging whether the wearing part corresponding to the heart rate detection equipment is human skin or not according to the substance corresponding to the wave intensity difference;
if the wearing part is human skin, acquiring a target distance between the heart rate detection module and the human skin;
if the target distance belongs to a preset interval, starting the heart rate detection module, acquiring ambient light information, and inquiring a preset light intensity comparison table corresponding to the ambient light information;
searching a target light intensity corresponding to the target distance in the preset light intensity comparison table, and taking the emitted light corresponding to the target light intensity as first emitted light;
controlling the heart rate detection module to emit the first emitting light and receiving first reflecting light corresponding to the first emitting light;
determining the heart rate obtained by the heart rate detection equipment according to the light intensity of the first reflected light and the light intensity of the first reflected light;
the step of obtaining the target distance between the heart rate detection module and the skin of the human body comprises:
determining a distance error according to the ultrasonic sensor and the heart rate detection module;
determining a difference value between the distance value obtained by the ultrasonic sensor and the distance error as a target distance between the heart rate detection equipment and the human skin;
after the step of determining the distance error according to the ultrasonic sensor and the heart rate detection module, the method further comprises the following steps of:
and when the distance value acquired by the ultrasonic sensor is smaller than the distance error, reminding a user of wearing the belt too tightly in a vibration mode.
2. The heart rate detection method according to claim 1, wherein if the wearing part is a human skin, the step of obtaining the target distance between the heart rate detection module and the human skin comprises:
if the wearing part is the skin of the human body, acquiring the time for the ultrasonic sensor to transmit the sound waves and the time for the ultrasonic sensor to receive the sound waves;
and calculating the target distance between the heart rate detection equipment and the human skin according to the time for transmitting the sound waves and the time for receiving the sound waves.
3. The heart rate detecting method according to claim 1, wherein the step of determining the heart rate acquired by the heart rate detecting device based on the light intensity of the first reflected light and the light intensity of the first reflected light is followed by:
acquiring a first distance between the heart rate detection equipment and the skin of the human body through the ultrasonic sensor again;
if the first distance does not belong to the preset interval, closing the heart rate detection module and outputting abnormal prompt information of heart rate detection.
4. The heart rate detection method of claim 3, wherein the step of obtaining the first distance between the heart rate detection device and the skin of the human body again by the ultrasonic sensor is followed by:
if the first distance belongs to the preset interval, second emitted light corresponding to the first distance is obtained;
if the first distance is not equal to the target distance, controlling the heart rate detection module to emit the second emitting light and receiving second reflecting light corresponding to the second emitting light;
and determining the heart rate obtained by the heart rate detection equipment according to the light intensity of the second emitted light and the light intensity of the second reflected light.
5. A heart rate detection device, characterized in that the heart rate detection device comprises:
the judging module is used for judging whether the wearing part corresponding to the heart rate detection equipment is the human skin or not according to the sound waves transmitted by the ultrasonic sensor and the received sound waves; wherein, according to the sound wave of ultrasonic sensor transmission and the sound wave of receiving, judge whether the wearing position that heart rate check out test set corresponds is human skin includes: acquiring the intensity of the sound wave transmitted by the ultrasonic sensor and the intensity of the received sound wave, and calculating the wave intensity difference between the transmitted sound wave intensity and the received sound wave intensity; searching a substance corresponding to the wave intensity difference in a preset substance comparison table, and judging whether a wearing part corresponding to the heart rate detection equipment is human skin or not according to the substance corresponding to the wave intensity difference;
the target distance acquisition module is used for acquiring a target distance between the heart rate detection module and the skin of the human body if the wearing part is the skin of the human body;
the first emission light acquisition module is used for starting the heart rate detection module if the target distance belongs to a preset interval, acquiring ambient light information and inquiring a preset light intensity comparison table corresponding to the ambient light information;
searching for target light intensity corresponding to the target distance in the preset light intensity comparison table, and taking emitted light corresponding to the target light intensity as first emitted light;
the transmitting and receiving control module is used for controlling the heart rate detection module to transmit the first transmitting light and receive first reflecting light corresponding to the first transmitting light;
the heart rate determining module is used for determining the heart rate acquired by the heart rate detecting equipment according to the light intensity of the first emitting light and the light intensity of the first reflecting light;
the target distance obtaining module is also used for
Determining a distance error according to the ultrasonic sensor and the heart rate detection module;
determining a difference value between the distance value obtained by the ultrasonic sensor and the distance error as a target distance between the heart rate detection equipment and the human skin;
and when the distance value acquired by the ultrasonic sensor is smaller than the distance error, reminding a user of wearing the belt too tightly in a vibration mode.
6. A heart rate detection device, characterized in that the heart rate detection device comprises: memory, a processor and a heart rate detection program stored on the memory and executable on the processor, the heart rate detection program when executed by the processor implementing the steps of the method of heart rate detection according to any one of claims 1 to 4.
7. A computer-readable storage medium, characterized in that a heart rate detection program is stored thereon, which when executed by a processor implements the steps of the heart rate detection method according to any one of claims 1 to 4.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209965419U (en) * | 2019-04-29 | 2020-01-21 | 湖北春晖科技有限公司 | Blood sugar intelligence wrist strap |
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| KR101911183B1 (en) * | 2017-07-20 | 2018-12-19 | 이승진 | Fake fingerprint discrimination apparatus and method using impedance |
| CN107981852B (en) * | 2017-11-23 | 2020-10-09 | 歌尔股份有限公司 | Heart rate detection method and wearable device |
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| CN110940987A (en) * | 2018-09-20 | 2020-03-31 | 欧姆龙(上海)有限公司 | Control device and method for photoelectric detection system and photoelectric detection system |
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|---|---|---|---|---|
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| CN112401900A (en) * | 2019-08-19 | 2021-02-26 | Oppo广东移动通信有限公司 | Signal processing method, signal processing device, electronic equipment and computer readable storage medium |
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