CN114305368A - Heart rate monitoring method, device and equipment - Google Patents
Heart rate monitoring method, device and equipment Download PDFInfo
- Publication number
- CN114305368A CN114305368A CN202011030435.2A CN202011030435A CN114305368A CN 114305368 A CN114305368 A CN 114305368A CN 202011030435 A CN202011030435 A CN 202011030435A CN 114305368 A CN114305368 A CN 114305368A
- Authority
- CN
- China
- Prior art keywords
- heart rate
- sampling frequency
- user
- rate monitoring
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The embodiment of the invention provides a heart rate monitoring method, a heart rate monitoring device and heart rate monitoring equipment. The method comprises the following steps: monitoring the heart rate of a user at a preset sampling frequency to obtain a stable heart rate value of the user; gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency; and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency. According to the method provided by the embodiment of the invention, the power consumption of the heart rate monitoring equipment is reduced on the premise of ensuring the heart rate monitoring accuracy.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a heart rate monitoring method, a heart rate monitoring device and heart rate monitoring equipment.
Background
The heart rate is the number of heart beats in unit time, usually the number of heart beats per minute (bpm), and is one of the most important physiological parameters of human body life activity, and has important significance for diagnosis and monitoring of cardiovascular diseases, and important application value in fields such as vital sign monitoring and prevention and diagnosis of diseases. The infant has a certain probability of causing the heartbeat to stop due to the factors of diseases, turning over, blocking the respiratory tract by milk choking, covering the mouth and the nose by a cotton quilt or a pillow and the like, so that the death condition is caused. Therefore, heart rate monitoring is very necessary for infants lacking self-care ability, and the probability of accidents can be effectively reduced.
Since the heart rate of infants is much higher than that of adults, heart rate monitoring devices for adults cannot accurately monitor the heart rate of infants. In order to accurately monitor the heart rate of an infant, the existing heart rate monitoring device for the infant generally adopts a higher sampling frequency for monitoring, and the too high sampling frequency will cause the power consumption of the device to increase.
Disclosure of Invention
The embodiment of the invention provides a heart rate monitoring method, a heart rate monitoring device and heart rate monitoring equipment, which are used for solving the problem of high power consumption of the existing heart rate monitoring equipment.
In a first aspect, an embodiment of the present invention provides a heart rate monitoring method applied to a heart rate monitoring device, including:
monitoring the heart rate of a user at a preset sampling frequency to obtain a stable heart rate value of the user;
gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency;
and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency.
In one embodiment, the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
In one embodiment, the method further comprises:
determining the first target sampling frequency as a transition sampling frequency;
gradually reducing the sampling frequency by adopting a second preset step length by taking the transitional sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency;
and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a second target sampling frequency, reducing the sampling frequency to the second target sampling frequency, and monitoring the heart rate of the user by using the second target sampling frequency, wherein the first preset step length is larger than the second preset step length.
In one embodiment, the method further comprises:
and recording the corresponding relation between the stable heart rate value and the second target sampling frequency.
In one embodiment, the method further comprises:
and adjusting the power of a light source of the heart rate monitoring equipment according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring equipment.
In one embodiment, the adjusting the power of the light source of the heart rate monitoring device according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring device includes:
if the intensity of the received optical signal is greater than the preset intensity, reducing the power of the light source;
and if the intensity of the received optical signal is smaller than the preset intensity, increasing the power of the light source.
In one embodiment, the method further comprises:
detecting whether the heart rate monitoring device is worn on a user;
and if the heart rate monitoring equipment is not worn on the body of the user, entering a standby state.
In a second aspect, an embodiment of the present invention provides a heart rate monitoring apparatus, including:
the preprocessing module is used for monitoring the heart rate of the user at a preset sampling frequency to acquire a stable heart rate value of the user;
the adjusting module is used for gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value acquired under each sampling frequency;
and the monitoring module is used for determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency.
In one embodiment, the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
In a third aspect, an embodiment of the present invention provides a heart rate monitoring apparatus, including:
at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the heart rate monitoring method according to any one of the first aspect.
According to the heart rate monitoring method, the heart rate monitoring device and the heart rate monitoring equipment, the heart rate of the user is monitored at the preset sampling frequency, and the stable heart rate value of the user is obtained; gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency; and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency. On the premise of ensuring the heart rate monitoring accuracy, the power consumption of the heart rate monitoring equipment is reduced.
Drawings
FIG. 1 is a flow chart of an embodiment of a heart rate monitoring method provided by the present invention;
FIG. 2 is a flow chart of another embodiment of a heart rate monitoring method provided by the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a heart rate monitor apparatus according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a heart rate monitoring device provided in the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
The normal heart rate range of an adult is 60-100 bpm, and the normal heart rate range of a child is as follows: the newborn is 120-. Because of the great difference between them, heart rate monitoring devices on the market are generally classified into two categories, adult type and child type. Since the heart rate of children is much higher than that of adults, the sampling frequency of children-type heart rate monitoring devices is also much higher than that of adults. High sampling frequency results in high power consumption of the device. To the heart rate monitoring facilities who adopts battery powered, like wearable heart rate monitoring facilities, the high-power consumption will reduce equipment duration, need frequently charge or change the battery, not only can lead to user experience to worsen, if do not have the electricity in the use moreover, the user forgets to charge or change the battery, still has certain potential safety hazard. To above-mentioned problem, this application is dedicated to and is reduced heart rate monitoring facilities's consumption to improve equipment's duration, promote user experience.
Fig. 1 is a flowchart of an embodiment of a heart rate monitoring method provided by the present invention, which can be applied to a heart rate monitoring device. As shown in fig. 1, the heart rate monitoring method provided by this embodiment may include:
s101, monitoring the heart rate of the user at a preset sampling frequency, and acquiring a stable heart rate value of the user.
After the heart rate monitoring equipment is started, heart rate monitoring is carried out on the user at a preset sampling frequency. The preset sampling frequency is a fixed value, can be determined according to the maximum heart rate value which can be monitored by the heart rate monitoring equipment, and is the highest sampling frequency of the heart rate monitoring equipment.
And monitoring the heart rate of the user by using a preset sampling frequency, and recording the value after the obtained value is stable, namely the stable heart rate value of the user. This process typically lasts for several seconds, i.e. several seconds of heart rate monitoring of the user is continued at a preset high sampling frequency to obtain a stable heart rate value for the user.
And S102, gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value acquired under each sampling frequency.
The sampling frequency of existing heart rate monitoring devices is usually determined according to the maximum heart rate value that can be monitored and is fixed. Children have progressively lower heart rate values with age. And individual differences in heart rate values are significant, whether children or adults. Therefore, a fixed high sampling frequency often results in oversampling. Oversampling does not improve accuracy, but results in a significant increase in data throughput and power consumption.
S103, determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency.
The present embodiment takes the preset sampling frequency as 60Hz and the first preset step length as 10Hz as an example for explanation. After the stable heart rate value of the user is obtained, the sampling frequency is reduced to 50Hz, the heart rate of the user is monitored by the sampling frequency of 50Hz, the heart rate value of the user obtained under the sampling frequency of 50Hz is determined, and the difference value between the heart rate value and the stable heart rate value is calculated. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 40Hz, the heart rate of the user is monitored by the sampling frequency of 40Hz, the heart rate value of the user obtained under the sampling frequency of 40Hz is determined, and the difference value with the stable heart rate value is calculated. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 30Hz, the heart rate of the user is monitored by the sampling frequency of 30Hz, the heart rate value of the user acquired under the sampling frequency of 30Hz is determined, and the difference value with the stable heart rate value is calculated. If the difference value is larger than the preset threshold value, the first target sampling frequency is 40Hz, and the heart rate monitoring equipment adjusts the sampling frequency to 40 Hz.
In the embodiment, the individual difference of the heart rate value of the user is fully considered, and the sampling frequency is reduced according to the stable heart rate value of the user. In order to ensure the accuracy of heart rate monitoring, in this embodiment, the difference between the acquired heart rate value of the user and the stable heart rate value at the first target sampling frequency needs to be smaller than a preset threshold. The preset threshold value can be set according to the accuracy requirement of heart rate monitoring. The higher the monitoring accuracy requirement, the smaller the preset threshold value.
In this embodiment, after determining the first target sampling frequency and reducing the sampling frequency to the first target sampling frequency, the heart rate monitoring device continuously monitors the heart rate of the user at the first target sampling frequency. Since the first target sampling frequency is lower than the preset sampling frequency, the power consumption of the heart rate monitoring device can be reduced.
In one embodiment, the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
According to the heart rate monitoring method provided by the embodiment, the heart rate of the user is monitored at the preset sampling frequency, and the stable heart rate value of the user is obtained; according to the stable heart rate value of the user, the sampling frequency is gradually reduced to a first target sampling frequency by adopting a first preset step length; the user is then heart rate monitored at the first target sampling frequency. The individual difference of the heart rate value is fully utilized, and the power consumption of the heart rate monitoring equipment is reduced on the premise of ensuring the heart rate monitoring accuracy. To the heart rate monitoring facilities who adopts battery powered, the duration that can also improve equipment promotes user experience.
On the basis of the foregoing embodiment, in order to further reduce the power consumption of the heart rate monitoring device, the method provided by this embodiment may determine the first target sampling frequency as a transition sampling frequency; gradually reducing the sampling frequency by adopting a second preset step length by taking the transitional sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency; and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a second target sampling frequency, reducing the sampling frequency to the second target sampling frequency, and monitoring the heart rate of the user by using the second target sampling frequency, wherein the first preset step length is larger than the second preset step length. In the method provided by the embodiment, coarse adjustment is performed by using a first preset step length which is larger, so that the first target sampling frequency can be quickly approached; and then, fine adjustment is carried out by adopting a smaller second preset step length, so that more accurate second target sampling frequency can be determined.
The preset sampling frequency is 60Hz, the first preset step length is 10Hz, and the second preset step length is 1 Hz. After the stable heart rate value of the user is obtained, the sampling frequency is reduced to 50Hz, the heart rate of the user is monitored by the sampling frequency of 50Hz, the heart rate value of the user obtained under the sampling frequency of 50Hz is determined, and the difference value between the heart rate value and the stable heart rate value is calculated. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 40Hz, the heart rate of the user is monitored by the sampling frequency of 40Hz, the heart rate value of the user obtained under the sampling frequency of 40Hz is determined, and the difference value with the stable heart rate value is calculated. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 30Hz, the heart rate of the user is monitored by the sampling frequency of 30Hz, the heart rate value of the user acquired under the sampling frequency of 30Hz is determined, and the difference value with the stable heart rate value is calculated. And if the difference value is larger than the preset threshold value, determining that the transition sampling frequency is 40 Hz. And then, taking 40Hz as a reference, reducing the sampling frequency to 39Hz, monitoring the heart rate of the user by using the sampling frequency of 39Hz, determining the heart rate value of the user acquired under the sampling frequency of 39Hz, and calculating the difference value between the heart rate value and the stable heart rate value. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 38Hz, the heart rate of the user is monitored by the sampling frequency of 38Hz, the heart rate value of the user obtained under the sampling frequency of 38Hz is determined, and the difference value with the stable heart rate value is calculated. If the difference value is smaller than the preset threshold value, the sampling frequency is continuously reduced to 37Hz, the heart rate of the user is monitored by the 37Hz sampling frequency, the heart rate value of the user obtained under the 37Hz sampling frequency is determined, and the difference value with the stable heart rate value is calculated. And if the difference value is larger than the preset threshold value, determining that the second target sampling frequency is 38 Hz. Through two-stage adjustment, the second target sampling frequency can be determined quickly and accurately.
On the basis of the foregoing embodiment, the method provided by this embodiment further includes: and recording the corresponding relation between the stable heart rate value and the second target sampling frequency. The correspondence may be represented by a table, for example. As shown in table 1, table 1 is a table of the correspondence between the stable heart rate value and the second target sampling frequency according to an embodiment. It should be noted that the numerical values in table 1 are only illustrative and not limited thereto. The heart rate monitoring device can be subsequently corrected by the correspondence.
TABLE 1
| Stable heart rate value (bpm) | Second target sampling frequency (Hz) |
| 140 | 60 |
| 120 | 50 |
| 100 | 45 |
| 80 | 40 |
The process of optically-based heart rate measurement may generally include: the heart rate monitoring equipment transmits a light signal to a user to be monitored through the light source, receives reflected light or transmitted light of the light signal through the photoelectric sensor, converts the reflected light or the transmitted light into an electric signal, and determines the heart rate of the user according to the electric signal of the photoelectric sensor. In this process, there are a number of factors that can interfere with the accuracy of the measurement. For example, different skin tones have different absorptions of light, the deeper the skin tone the more light is absorbed; the absorption of light by different body parts also differs; the heart rate monitoring device is at a different distance from the user's skin and the optical signal is lost differently. Therefore, the power of the light source can be adjusted according to the skin color, the wearing part and the distance between the heart rate monitoring device and the skin of the user. For example, when the distance between the heart rate monitoring device and the user's skin is large, the power of the light source may be increased; for darker skinned users, the power of the light source may be increased, while for lighter skinned users, the power of the light source may be decreased.
On the one hand, in order to reduce the influence of the interference factor on the heart rate monitoring accuracy, and on the other hand, in order to optimize the power control, on the basis of the foregoing embodiment, the method provided in this embodiment may further include: and adjusting the power of a light source of the heart rate monitoring equipment according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring equipment. Specifically, if the intensity of the received optical signal is greater than the preset intensity, the power of the light source is reduced; and if the intensity of the received optical signal is less than the preset intensity, increasing the power of the light source.
In order to ensure accuracy, the intensity of the optical signal received by the photoelectric sensor needs to reach a preset intensity. While the light source power required to achieve the same intensity is different for users with different skin tones. Users with light skin color only need less power, while users with dark skin color need more power; less power is needed when the distance between the heart rate monitoring device and the skin of the user is small, and more power is needed when the distance between the heart rate monitoring device and the skin of the user is large. The light signal intensity received through the photoelectric sensor that detects heart rate monitoring facilities in this embodiment to adjust the power of heart rate monitoring facilities light source in view of the above, not only can improve the accuracy of heart rate control, optimized power control moreover.
In addition, the optical signal of the penetrating heart rate monitoring device needs to penetrate from one side of the human body to the other side to reach the sensing module, so that the power consumption of the device is very high. Therefore, in order to reduce power consumption, the heart rate monitoring device can adopt a reflection type detection mode, and an optical signal does not need to penetrate through the whole human tissue.
After the existing heart rate monitoring equipment is started, the existing heart rate monitoring equipment can be in a high-frequency working state all the time as long as the equipment is powered on. Therefore, unnecessary electric energy waste is caused when the user forgets to turn off the equipment after the monitoring is finished during the accurate work of the user after the power-on. Therefore, in order to further reduce the power consumption of the heart rate monitoring device, the method provided by this embodiment may further include: detecting whether a heart rate monitoring device is worn on a user; and if the heart rate monitoring equipment is not worn on the body of the user, entering a standby state.
Specifically, whether the heart rate monitoring device is worn or not can be detected through the change of capacitance values in the capacitance sensors by arranging the capacitance sensors at the contact parts of the heart rate monitoring device and a user. The human body can influence the capacitance value of capacitive sensor, when the capacitance value grow of capacitive sensor, then confirms that heart rate monitoring facilities wears on one's body the user, otherwise, then confirms that heart rate monitoring facilities does not wear on one's body the user. The change of the capacitance value is detected, and whether the heart rate monitoring equipment is worn on the body of the user can be accurately judged. In this embodiment, whether the heart rate monitoring device is worn on the body of the user can be judged by adopting modes such as distance detection and infrared detection.
And when the heart rate monitoring equipment is determined not to be worn on the user, the heart rate monitoring equipment enters a standby state. The standby state is a low power consumption state of the device in which the device does not perform heart rate monitoring. The method provided by the embodiment further reduces the power consumption of the heart rate monitoring device by carrying out wearing detection and entering a low-power-consumption standby state when the device is not worn on the basis of the embodiment.
It should be noted that the heart rate monitoring device can continuously perform wearing detection in the power-on state so as to quickly respond to the change of the use state. After starting up, if detecting that the wearing is not carried, entering a standby state; in a standby state, if the wearing state is detected, the device enters a working state and carries out heart rate monitoring; in the working state, if the wearing is detected not to be carried out (such as detection is finished, a user is changed, and the like), the standby state is entered again.
Fig. 2 is a flowchart of another embodiment of the heart rate monitoring method provided by the present invention, which is applied to a heart rate monitoring device. As shown in fig. 2, the method provided by this embodiment may include:
s201, entering a standby state. The heart rate monitoring equipment can enter a low-power consumption standby state after being started. In the standby state, step S202 is continuously executed.
S202, detecting whether the heart rate monitoring equipment is worn on the user. Specifically, the detection may be performed by a capacitance sensor, an infrared sensor, or the like. If the heart rate monitoring device is worn on the user, executing step S203; if the heart rate monitoring equipment is not worn on the user, the standby state is continuously kept, and whether the heart rate monitoring equipment is worn on the user or not is continuously detected.
S203, monitoring the heart rate of the user at a preset sampling frequency, and acquiring a stable heart rate value of the user.
And S204, gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value acquired under each sampling frequency.
S205, determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target sampling frequency, and reducing the sampling frequency to the first target sampling frequency.
And S206, monitoring the heart rate of the user at the first target sampling frequency. Step S207 is continuously performed during the heart rate monitoring of the user at the first target sampling frequency.
S207, detecting whether the heart rate monitoring equipment is worn on the user. If the heart rate monitoring device is worn on the user, executing step S203; if the heart rate monitoring device is not worn on the user, step S201 is executed.
According to the method provided by the embodiment, the power consumption of the equipment is reduced by reducing the sampling frequency, and when the heart rate monitoring equipment is detected not to be worn on the body of a user, the low-power-consumption standby state is entered, and the heart rate monitoring is stopped, so that the power consumption of the equipment is further reduced.
Fig. 3 is a schematic structural diagram of a heart rate monitoring device according to an embodiment of the present invention. As shown in fig. 3, the heart rate monitoring apparatus 30 provided in the present embodiment may include:
the preprocessing module 301 is configured to monitor a heart rate of a user at a preset sampling frequency to obtain a stable heart rate value of the user;
an adjusting module 302, configured to gradually decrease a sampling frequency by using a first preset step length based on the preset sampling frequency, and respectively calculate a difference between a user heart rate value obtained at each sampling frequency and the stable heart rate value;
the monitoring module 303 is configured to determine a lowest sampling frequency of the difference value smaller than a preset threshold as a first target frequency, reduce the sampling frequency to the first target sampling frequency, and perform heart rate monitoring on the user at the first target sampling frequency.
The heart rate monitoring device provided by this embodiment may be used to execute the technical solution of the method embodiment corresponding to fig. 1, and the implementation principle and technical effect thereof are similar, and are not described herein again.
In one embodiment, the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
In one embodiment, the adjusting module 302 is further configured to determine the first target sampling frequency as a transition sampling frequency; gradually reducing the sampling frequency by adopting a second preset step length by taking the transitional sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency; the monitoring module 303 is further configured to determine a lowest sampling frequency of the difference value smaller than a preset threshold as a second target sampling frequency, reduce the sampling frequency to the second target sampling frequency, and monitor the heart rate of the user at the second target sampling frequency, where the first preset step length is greater than the second preset step length.
In one embodiment, the heart rate monitoring device 30 may further include a recording module (not shown in the figure) for recording a correspondence between the stable heart rate value and the second target sampling frequency.
In one embodiment, the adjusting module 302 is further configured to adjust the power of the light source of the heart rate monitoring device according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring device.
In an embodiment, the adjusting module 302 is configured to adjust the power of the light source of the heart rate monitoring device according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring device, and specifically may include:
if the intensity of the received optical signal is greater than the preset intensity, reducing the power of the light source;
and if the intensity of the received optical signal is less than the preset intensity, increasing the power of the light source.
In one embodiment, the heart rate monitoring apparatus 30 may further include a detection module (not shown in the figure) for detecting whether the heart rate monitoring device is worn on the user; and if the heart rate monitoring equipment is not worn on the body of the user, entering a standby state.
Fig. 4 shows a heart rate monitoring device, and the embodiment of the invention is only illustrated in fig. 4 by way of example, which does not mean that the invention is limited thereto. Fig. 4 is a schematic structural diagram of an embodiment of a heart rate monitoring device provided in the present invention. This rhythm of heart monitoring facilities can be the smart machine who possesses rhythm of the heart monitoring function, like intelligent bracelet, intelligent wrist-watch, intelligent socks etc.. As shown in fig. 4, the heart rate monitoring apparatus 40 provided in the present embodiment may include: memory 401, processor 402, and bus 403. The bus 403 is used for connecting the elements.
The memory 401 stores a computer program, and when the computer program is executed by the processor 402, the technical solution of the heart rate monitoring method provided by any of the above method embodiments may be implemented.
Wherein the memory 401 and the processor 402 are electrically connected directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines, such as bus 403. The memory 401 stores a computer program for implementing the heart rate monitoring method, which includes at least one software functional module that can be stored in the memory 401 in the form of software or firmware, and the processor 402 executes various functional applications and data processing by running the software program and the module stored in the memory 401.
The Memory 401 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 401 is used for storing programs, and the processor 402 executes the programs after receiving the execution instructions. Further, the software programs and modules in the memory 401 may also include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.
The processor 402 may be an integrated circuit chip having signal processing capabilities. The Processor 402 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and so on. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It will be appreciated that the configuration of fig. 4 is merely illustrative and may include more or fewer components than shown in fig. 4 or have a different configuration than shown in fig. 4. The components shown in fig. 4 may be implemented in hardware and/or software.
For example, the heart rate monitoring device 40 provided by the present embodiment may further include a light source for emitting a light signal to the user; the photoelectric sensor is used for receiving reflected light or transmitted light of the optical signal and converting the reflected light or the transmitted light into an electric signal; the processor 402 is also used to determine the heart rate of the user from the electrical signal of the photosensor.
Reference is made herein to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope hereof. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in differing ways depending upon the particular application or consideration of any number of cost functions associated with operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).
Additionally, as will be appreciated by one skilled in the art, the principles herein may be reflected in a computer program product on a computer readable storage medium, which is pre-loaded with computer readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu Ray disks, etc.), flash memory, and/or the like. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including means for implementing the function specified. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A heart rate monitoring method is applied to heart rate monitoring equipment and is characterized by comprising the following steps:
monitoring the heart rate of a user at a preset sampling frequency to obtain a stable heart rate value of the user;
gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency;
and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency.
2. The heart rate monitoring method of claim 1, wherein the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
3. The heart rate monitoring method of claim 2, further comprising:
determining the first target sampling frequency as a transition sampling frequency;
gradually reducing the sampling frequency by adopting a second preset step length by taking the transitional sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value obtained under each sampling frequency;
and determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a second target sampling frequency, reducing the sampling frequency to the second target sampling frequency, and monitoring the heart rate of the user by using the second target sampling frequency, wherein the first preset step length is larger than the second preset step length.
4. The heart rate monitoring method of claim 3, further comprising:
and recording the corresponding relation between the stable heart rate value and the second target sampling frequency.
5. The heart rate monitoring method of claim 4, further comprising:
and adjusting the power of a light source of the heart rate monitoring equipment according to the intensity of the optical signal received by the photoelectric sensor of the heart rate monitoring equipment.
6. The heart rate monitoring method of claim 5, wherein adjusting the power of the light source of the heart rate monitoring device based on the intensity of the light signal received by the photosensor of the heart rate monitoring device comprises:
if the intensity of the received optical signal is greater than the preset intensity, reducing the power of the light source;
and if the intensity of the received optical signal is smaller than the preset intensity, increasing the power of the light source.
7. The heart rate monitoring method of claim 6, further comprising:
detecting whether the heart rate monitoring device is worn on a user;
and if the heart rate monitoring equipment is not worn on the body of the user, entering a standby state.
8. A heart rate monitoring device, comprising:
the preprocessing module is used for monitoring the heart rate of the user at a preset sampling frequency to acquire a stable heart rate value of the user;
the adjusting module is used for gradually reducing the sampling frequency by adopting a first preset step length by taking the preset sampling frequency as a reference, and respectively calculating the difference value between the user heart rate value and the stable heart rate value acquired under each sampling frequency;
and the monitoring module is used for determining the lowest sampling frequency of which the difference value is smaller than a preset threshold value as a first target frequency, reducing the sampling frequency to the first target sampling frequency, and monitoring the heart rate of the user at the first target sampling frequency.
9. The heart rate monitoring device of claim 8, wherein the first target sampling frequency range is greater than or equal to 40Hz and less than or equal to 100 Hz.
10. Heart rate monitoring apparatus, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the heart rate monitoring method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030435.2A CN114305368A (en) | 2020-09-27 | 2020-09-27 | Heart rate monitoring method, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030435.2A CN114305368A (en) | 2020-09-27 | 2020-09-27 | Heart rate monitoring method, device and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114305368A true CN114305368A (en) | 2022-04-12 |
Family
ID=81011861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011030435.2A Pending CN114305368A (en) | 2020-09-27 | 2020-09-27 | Heart rate monitoring method, device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114305368A (en) |
-
2020
- 2020-09-27 CN CN202011030435.2A patent/CN114305368A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11253207B2 (en) | Systems and methods for medical monitoring | |
| US20200022599A1 (en) | Energy-saving switching method and a smart watch with heart rate detection function | |
| US9636056B2 (en) | Physiological trend monitor | |
| US10201302B2 (en) | Systems and methods for determining whether regional oximetry sensors are properly positioned | |
| US20170095215A1 (en) | Medical device with adaptive power consumption | |
| CN108882860B (en) | Tracking contact quality to vital sign measurement sensor | |
| US11510624B2 (en) | Wireless vital sign monitoring | |
| US20190142286A1 (en) | Photoplethysmographic wearable blood pressure monitoring system and methods | |
| CN103987311A (en) | Medical device with conditional power consumption | |
| WO2019120286A1 (en) | Sleep inducing device | |
| CN104110894A (en) | Water heater, water heater system, hot water temperature adjusting method, wearable intelligent equipment | |
| US20180353111A1 (en) | Systems and methods for driving optical sensors | |
| CN106913326A (en) | Biological physiology condition feedback system and its operating method | |
| US20220087601A1 (en) | Electronic device of detecting apnea, and computer-readable storage medium | |
| CN203858463U (en) | Sports watch with watchband capable of measuring heart rate | |
| CN104132464A (en) | Water heater, water heater system, hot water temperature adjusting method and wearable intelligent equipment | |
| CN114305368A (en) | Heart rate monitoring method, device and equipment | |
| CN113995390B (en) | Working mode control method of wearable device, wearable device and medium | |
| WO2021077288A1 (en) | Alarm issuing system and alarm issuing method | |
| AU2010239138B2 (en) | A method and system for determining a variation in a metabolic function and managing the variation accordingly | |
| CN212659314U (en) | Pressure monitor of intelligent orthosis | |
| CN210205245U (en) | Controller of massage mattress and massage mattress | |
| US20220192529A1 (en) | Pulse recognition and blood oxygen saturation systems and methods | |
| CN219042717U (en) | Health monitoring fingerstall for diabetics | |
| CN220369994U (en) | Pulse oximeter circuit and ear-hanging pulse oximeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |