Collection frequency intelligent self-adaptive heart rate monitoring system

Abstract

The invention discloses an acquisition frequency intelligent self-adaptive heart rate monitoring system, and relates to the technical field of physiological monitoring. The device comprises a heart rate detection device, a sleep control unit and a power supply, the sleep control unit is further used for obtaining the heart rate cycle duration of the human body according to the heart rate of the human body at each detection moment; dividing the heart rate cycle into a plurality of heart rate statistical periods according to the heart rates of the human body at different collection moments within the plurality of heart rate cycle durations; according to the heart rate of each detection moment in each heart rate statistics time period, obtaining a planned detection interval duration in each heart rate statistics time period; obtaining each detection moment in the next heart rate cycle according to the planned detection interval duration in each heart rate statistical period; and controlling the heart rate detection device to detect the heart rate of the human body according to each detection moment in the next heart rate period. The endurance time of the heart rate detection device is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of physiological monitoring, and in particular relates to an acquisition frequency intelligent adaptive heart rate monitoring system. Background Art

[0002] Heart rate monitoring is an important component of many medical and health applications. Heart rate can provide a lot of information, such as an individual's health status, stress level, and even emotional state. Therefore, accurate and real-time heart rate monitoring is crucial in the medical and health field.

[0003] Traditional heart rate monitoring systems usually use devices such as electrocardiogram (ECG) or photoplethysmography (PPG) to measure heart rate. These devices can provide accurate heart rate readings, but they must always be connected to the user's body and maintain a high-frequency monitoring state to achieve comprehensive heart rate monitoring of the human body, resulting in a short battery life of the heart rate detection device. Summary of the invention

[0004] The purpose of the present invention is to provide a heart rate monitoring system with intelligent adaptive acquisition frequency, which improves the endurance of the heart rate detection device by adaptively adjusting the frequency of detecting heart rate according to the state of the human body.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides a collection frequency intelligent adaptive heart rate monitoring system, comprising:

[0007] A heart rate detection device, used for detecting a human body's heart rate;

[0008] A sleep control unit, used to control the heart rate detection device to detect the heart rate of a human body;

[0009] A power supply, used to supply power to the heart rate detection device and the sleep control device;

[0010] The sleep control unit is also used to obtain the heart rate cycle duration of the human body according to the heart rate of the human body at each detection moment;

[0011] Dividing the heart rate cycle into a plurality of heart rate statistical time periods according to the heart rates of the human body at different collection moments within the duration of the plurality of heart rate cycles;

[0012] Obtaining the planned detection interval duration in each heart rate statistical period according to the heart rate at each detection moment in each heart rate statistical period;

[0013] Obtain each detection moment in the next heart rate cycle according to the planned detection interval duration in each heart rate statistical period;

[0014] The heart rate detection device is controlled to detect the heart rate of the human body at each detection moment in the next heart rate cycle.

[0015] The step of obtaining the duration of the human body's heart rate cycle according to the human body's heart rate at each detection moment includes:

[0016] Obtaining the duration of multiple heart rate cycles in history;

[0017] Arranging the durations of the plurality of heart rate cycles in history in order of duration to obtain a heart rate cycle duration sequence;

[0018] Obtaining the difference between the maximum and minimum values ​​in the heart rate cycle duration sequence;

[0019] Taking the ratio of the difference between the maximum value and the minimum value in the heart rate cycle duration sequence and the number of durations of the heart rate cycles in the heart rate cycle duration sequence as the average interval duration of the heart rate cycle duration sequence;

[0020] Taking a plurality of the heart rate cycles in the heart rate cycle duration sequence whose interval durations with adjacent heart rate cycles are less than the average interval duration as regular heart rate cycles;

[0021] The next heart rate cycle of the human body is selected from a plurality of regular heart rate cycles.

[0022] Wherein, the step of selecting the next heart rate cycle of the human body from the plurality of conventional heart rate cycles includes:

[0023] Obtaining the duration of the previous heart rate cycle;

[0024] The regular heart rate cycle with the smallest time difference from the previous heart rate cycle is obtained from the multiple regular heart rate cycles as the next heart rate cycle of the human body.

[0025] The step of dividing the heart rate cycle into a plurality of heart rate statistical time periods according to the heart rates of the human body at different collection moments within the duration of the plurality of heart rate cycles includes:

[0026] Obtain the heart rate at different collection times in the previous heart rate cycle;

[0027] Obtaining a heart rate range within the previous heart rate cycle according to the heart rates at different acquisition moments within the previous heart rate cycle;

[0028] Obtaining the heart rate frequency band in the previous heart rate cycle according to the heart rate range in the previous heart rate cycle and the heart rates at different acquisition moments in the previous heart rate cycle;

[0029] The previous heart rate cycle is divided into a plurality of heart rate statistics time periods according to the time period of the heart rate frequency band to which it belongs.

[0030] Wherein, the step of obtaining the heart rate frequency band in the previous heart rate cycle according to the heart rate range in the previous heart rate cycle and the heart rates at different acquisition moments in the previous heart rate cycle includes:

[0031] According to the heart rates at different acquisition moments in the previous heart rate cycle, the standard deviation of the heart rate in the previous heart rate cycle is obtained as the tolerance range in the previous heart rate cycle;

[0032] The heart rate range in the previous heart rate cycle is divided into a plurality of heart rate frequency bands according to the tolerance range.

[0033] The step of obtaining the planned detection interval duration in each heart rate statistical period according to the heart rate at each detection moment in each heart rate statistical period includes:

[0034] The maximum value of the heart rate at each detection moment in each heart rate statistics period is taken as the detected heart rate in the heart rate statistics period;

[0035] Half of the cardiac cycle duration corresponding to the detected heart rate within the heart rate statistics period is used as the planned detection interval duration within the heart rate statistics period.

[0036] The step of obtaining each detection moment in the next heart rate cycle according to the planned detection interval duration in each heart rate statistical period includes:

[0037] In each of the heart rate statistics time periods in the next heart rate cycle, each of the heart rate statistics time periods is divided according to the corresponding planned detection interval duration to obtain each detection moment in each of the heart rate statistics time periods in the next heart rate cycle.

[0038] Among them, it also includes:

[0039] After the sleep control unit sends each detection moment in the next heart rate cycle to the heart rate detection device, the sleep control unit enters the sleep mode.

[0040] Among them, it also includes:

[0041] Continuously determining whether the real-time heart rate in the current heart rate cycle exceeds the maximum value in the previous heart rate cycle;

[0042] If yes, waking up the sleep control unit;

[0043] The sleep control unit controls the heart rate detection device to detect the heart rate of the human body according to the maximum detection frequency.

[0044] The present invention improves the battery life of the heart rate detection device by adaptively adjusting the frequency of heart rate detection according to the state of the human body.

[0045] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0047] Figure 1 A schematic diagram of functional modules and information interaction of an intelligent adaptive heart rate monitoring system for acquisition frequency according to an embodiment of the present invention;

[0048] Figure 2 A schematic diagram of a step flow of a sleep control unit according to an embodiment of the present invention;

[0049] Figure 3 This is a schematic diagram of the step flow of step S1 in one embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of the step flow of step S16 in one embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the step flow of step S2 in one embodiment of the present invention;

[0052] Figure 6 This is a schematic diagram of the step flow of step S23 in one embodiment of the present invention;

[0053] Figure 7 This is a schematic diagram of the step flow of step S3 in one embodiment of the present invention;

[0054] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0055] 1-heart rate detection device, 2-sleep control unit, 3-power supply. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Heart rate detection is a method used to measure the human heart's beating frequency. Heart rate refers to the number of times the heart beats per minute, usually expressed in beats per minute (bpm). In order to improve the battery life of heart rate detection, you can use low-power devices and choose low-power heart rate detection devices, such as low-power pulse meters or smart watches specially designed to save power. These devices usually optimize energy use and extend battery life. You can also limit the detection frequency and set the frequency of heart rate detection to a lower interval. For example, you can set the detection frequency to be performed every once in a while instead of continuous monitoring. This can reduce the power consumption of the device. However, the above method will reduce the accuracy of heart rate detection.

[0058] In order to improve the battery life of the detection device without reducing the accuracy of heart rate detection, the present invention provides the following solution.

[0059] See also Figures 1 to 2 As shown, the present invention provides an acquisition frequency intelligent adaptive heart rate monitoring system, which can include a heart rate detection device 1, a sleep control unit 2 and a power supply 3 based on functional modules. The heart rate detection device 1 can be a heart rate chest belt, which is fixed on the chest. The sensor can measure the electrocardiogram signal and transmit the data to a connected device (such as a smart phone or a sports watch) for analysis and display. A heart rate chest belt is generally considered to be a heart rate detection device with higher accuracy. The power supply 3 is used to supply power to the heart rate detection device and the sleep control device, and the power supply 3 can be a dry cell or a storage battery.

[0060] Since the energy consumption of the heart rate detection device 1 to maintain a high sampling rate is high, in order to extend the service life of the power supply 3, the sleep control unit 2 can first execute step S1 to obtain the heart rate cycle duration of the human body according to the heart rate of the human body at each detection moment. Next, step S2 can be executed to divide the heart rate cycle into multiple heart rate statistical time periods according to the heart rate of the human body at different acquisition moments within multiple heart rate cycle durations. Next, step S3 can be executed to obtain the planned detection interval duration within each heart rate statistical time period according to the heart rate at each detection moment within each heart rate statistical time period. Next, step S4 can be executed to obtain each detection moment in the next heart rate cycle according to the planned detection interval duration within each heart rate statistical time period. Finally, step S5 can be executed to control the heart rate detection device to detect the heart rate of the human body at each detection moment in the next heart rate cycle. After the sleep control unit sends each detection moment in the next heart rate cycle to the heart rate detection device, the sleep control unit enters sleep mode.

[0061] In order to avoid sudden accidents of the human body that may increase the required heart rate detection frequency, it is continuously determined whether the real-time heart rate in the current heart rate cycle exceeds the maximum value in the previous heart rate cycle. If so, the dormant control unit is awakened, and the dormant control unit controls the heart rate detection device to detect the human heart rate at the maximum detection frequency.

[0062] Heart rate cycles refer to the pattern of changes in heart rate over a period of time. Under normal circumstances, heart rate changes according to the needs of the body and external stimuli, forming a cyclical pattern. The following are some common heart rate cycles:

[0063] Daily cyclical changes in heart rate: The human heart rate changes cyclically throughout the day. Generally speaking, the heart rate is lower after getting up in the morning, gradually increases to the level of daytime activities, and then decreases again when resting at night. This cyclical change is related to the body's biological clock and daily activity patterns.

[0064] Respiratory cyclic variation of heart rate: There is an interrelated cyclic variation between heart rate and respiration. This is called respiratory variability of respiration and heart rate (respiratory sinus arrhythmia, RSA). Under normal circumstances, heart rate will increase slightly during breathing, peak breathing, and vary between inspiration and expiration. This variability reflects the activity of the autonomic nervous system.

[0065] Exercise Cyclic Changes in Heart Rate: When exercising or doing other physical activities, your heart rate increases as the intensity of the activity increases. This change is to meet the body's demand for oxygen and energy. With rest and recovery, your heart rate gradually returns to the base level.

[0066] Emotional Cyclic Changes in Heart Rate: Changes in emotional state can also cause changes in heart rate. For example, emotional states such as tension, excitement, or fear may cause the heart rate to increase, while calm, relaxed, or happy emotions may cause the heart rate to slow down.

[0067] It should be noted that the heart rate change cycle may vary between individuals and is affected by many factors, including age, gender, health status, drug use, environmental stimulation, etc. The normal heart rate change pattern can reflect the health of the body's autonomic nervous system and cardiovascular system.

[0068] See also Figure 3 As shown, since the activities of the human body are periodic, in order to obtain the duration of the human heart rate cycle, the above-mentioned step S1 can firstly execute step S11 to obtain the duration of multiple heart rate cycles in history during the specific implementation process. Next, step S12 can be executed to arrange the duration of multiple heart rate cycles in history in the order of duration to obtain a heart rate cycle duration sequence. Next, step S13 can be executed to obtain the difference between the maximum and minimum values ​​in the heart rate cycle duration sequence. Next, step S14 can be executed to take the ratio of the difference between the maximum and minimum values ​​in the heart rate cycle duration sequence and the number of heart rate cycles in the heart rate cycle duration sequence as the average interval duration of the heart rate cycle duration sequence. Next, step S15 can be executed to take multiple heart rate cycles in the heart rate cycle duration sequence whose interval duration with the duration of adjacent heart rate cycles is less than the average interval duration as regular heart rate cycles. Finally, step S16 can be executed to select the next heart rate cycle of the human body from multiple regular heart rate cycles.

[0069] The human body's heart rate cycle can change with changes in physical state. The following are some common physical conditions that affect the heart rate cycle:

[0070] Exercise and physical activity: When engaging in physical exercise or other physical activity, heart rate increases to meet the body's demand for oxygen and energy. This is achieved through activation of the sympathetic nervous system and inhibition of the parasympathetic nervous system. Changes in heart rate depend on the intensity and duration of the activity and the individual's fitness level.

[0071] Emotions and mental states: Emotions and mental states can have an impact on heart rate. For example, negative emotions such as tension, excitement, fear or anxiety may cause heart rate to increase, while calm, relaxed or happy emotions may cause heart rate to slow down. This is related to the activity of the autonomic nervous system and the stress response.

[0072] Sleep and resting states: Heart rate is usually low during sleep and resting states. Heart rate may drop further as we enter the deep sleep stages. This is related to the body's relaxation and metabolic adjustments.

[0073] Diet and medications: Certain diets and medications can have an effect on heart rate. For example, caffeine and energy drinks can increase heart rate, while certain medications (such as beta blockers) can slow it down.

[0074] Diseases and pathological conditions: Certain diseases and pathological conditions may cause abnormal heart rate. For example, conditions such as arrhythmia, heart failure, hyperthyroidism or hypoglycemia may cause an abnormal increase or decrease in heart rate.

[0075] Therefore, understanding and monitoring the heart rate cycle requires consideration of individual physical state and environmental factors. Changes in heart rate can reflect the regulation of the autonomic nervous system, cardiovascular system, and overall health status.

[0076] See also Figure 4 As shown, since the human heart rate cycle also changes with the physical state, in order to select the next heart rate cycle of the human body, step S161 can be first executed to obtain the duration of the previous heart rate cycle. Then, step S162 can be executed to obtain the regular heart rate cycle with the smallest duration difference from the previous heart rate cycle among multiple regular heart rate cycles as the next heart rate cycle of the human body.

[0077] See also Figure 5 As shown, in order to divide the heart rate statistics time period within the heart rate cycle, first, step S21 can be executed to obtain the heart rate at different collection times within the previous heart rate cycle. Next, step S22 can be executed to obtain the heart rate range within the previous heart rate cycle according to the heart rate at different collection times within the previous heart rate cycle. Next, step S23 can be executed to obtain the heart rate frequency band within the previous heart rate cycle according to the heart rate range within the previous heart rate cycle and the heart rate at different collection times within the previous heart rate cycle. Finally, step S24 can be executed to divide the previous heart rate cycle into multiple heart rate statistics time periods according to the time period of the heart rate frequency band to which it belongs. The heart rate within the heart rate cycle can also be divided more finely according to specific needs and research purposes, for example, according to different time periods (such as day and night), different activity stages (such as rest, activity, recovery) or specific events (such as the measurement window of heart rate variability).

[0078] See also Figure 6 As shown, since the physiological changes of the human body are persistent and continuous, the heart rate frequency band in the previous heart rate cycle can be obtained according to the heart rate range in the previous heart rate cycle and the heart rates at different acquisition times in the previous heart rate cycle. In the specific implementation process, step S231 can be first executed to obtain the standard deviation of the heart rate in the previous heart rate cycle according to the heart rates at different acquisition times in the previous heart rate cycle as the tolerance range in the previous heart rate cycle. Next, step S232 can be executed to divide the heart rate range in the previous heart rate cycle into multiple heart rate frequency bands according to the tolerance range.

[0079] See also Figure 7 As shown, in order to obtain the planned detection interval duration in each heart rate statistics period, first, step S31 can be executed to use the maximum value of the heart rate at each detection moment in each heart rate statistics period as the detection heart rate in the heart rate statistics period. Next, step S32 can be executed to use half of the cardiac cycle duration corresponding to the detection heart rate in the heart rate statistics period as the planned detection interval duration in the heart rate statistics period. On this basis, in order to obtain each detection moment in the next heart rate cycle according to the planned detection interval duration in each heart rate statistics period, in the process of specific implementation, each heart rate statistics period can be divided according to the corresponding planned detection interval duration in each heart rate statistics period in the next heart rate cycle to obtain each detection moment in each heart rate statistics period in the next heart rate cycle.

[0080] The flow chart and block diagram in the accompanying drawings show the possible architecture, function and operation of the device, system, method and computer program product according to multiple embodiments of the present application. In this regard, each square frame in the flow chart or block diagram can represent a part of a module, program segment or instruction, and a part of the module, program segment or instruction includes one or more executable instructions for realizing the logical function of the specification. In some alternative implementations, the functions marked in the square frame can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous square frames can actually be executed substantially in parallel, and they can also be executed in reverse order sometimes, depending on the functions involved.

[0081] It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented by hardware that performs the corresponding function or action, such as a circuit or ASIC (Application Specific Integrated Circuit), or can be implemented by a combination of hardware and software, such as firmware.

[0082] Although the present invention is described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0083] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An intelligent adaptive heart rate monitoring system with acquisition frequency, characterized in that: include, A heart rate detection device, used for detecting the heart rate of a human body; A sleep control unit, used to control the heart rate detection device to detect the heart rate of a human body; A power supply, used to supply power to the heart rate detection device and the sleep control device; The sleep control unit is also used to obtain the heart rate cycle duration of the human body according to the heart rate of the human body at each detection moment; Dividing the heart rate cycle into a plurality of heart rate statistical time periods according to the heart rates of the human body at different collection moments within the duration of the plurality of heart rate cycles; Obtaining the planned detection interval duration in each heart rate statistical period according to the heart rate at each detection moment in each heart rate statistical period; Obtain each detection moment in the next heart rate cycle according to the planned detection interval duration in each of the heart rate statistics time periods; The heart rate detection device is controlled to detect the heart rate of the human body at each detection moment in the next heart rate cycle.

2. The system according to claim 1, characterized in that The step of obtaining the duration of the human body's heart rate cycle according to the human body's heart rate at each detection moment, include, Obtaining the duration of multiple heart rate cycles in history; Arranging the durations of the plurality of heart rate cycles in history in order of duration to obtain a heart rate cycle duration sequence; Obtaining the difference between the maximum and minimum values ​​in the heart rate cycle duration sequence; Taking the ratio of the difference between the maximum value and the minimum value in the heart rate cycle duration sequence and the number of durations of the heart rate cycles in the heart rate cycle duration sequence as the average interval duration of the heart rate cycle duration sequence; Taking a plurality of the heart rate cycles in the heart rate cycle duration sequence whose interval durations with adjacent heart rate cycles are less than the average interval duration as regular heart rate cycles; The next heart rate cycle of the human body is selected from a plurality of regular heart rate cycles.

3. The system according to claim 2, characterized in that The step of selecting the next heart rate cycle of the human body from a plurality of conventional heart rate cycles, include, Obtaining the duration of the previous heart rate cycle; The regular heart rate cycle with the smallest time difference from the previous heart rate cycle is obtained from the multiple regular heart rate cycles as the next heart rate cycle of the human body.

4. The system according to claim 1, characterized in that The step of dividing the heart rate cycle into a plurality of heart rate statistical time periods according to the heart rates of the human body at different collection moments within the duration of the plurality of heart rate cycles, include, Obtaining the heart rate at different collection times in the previous heart rate cycle; Obtaining a heart rate range within the previous heart rate cycle according to the heart rates at different acquisition moments within the previous heart rate cycle; Obtaining the heart rate frequency band in the previous heart rate cycle according to the heart rate range in the previous heart rate cycle and the heart rates at different acquisition moments in the previous heart rate cycle; The previous heart rate cycle is divided into a plurality of heart rate statistics time periods according to the time period of the heart rate frequency band to which it belongs.

5. The system according to claim 4, characterized in that The step of obtaining the heart rate frequency band in the previous heart rate cycle according to the heart rate range in the previous heart rate cycle and the heart rates at different acquisition moments in the previous heart rate cycle, include, According to the heart rates at different acquisition moments in the previous heart rate cycle, the standard deviation of the heart rate in the previous heart rate cycle is obtained as the tolerance range in the previous heart rate cycle; The heart rate range in the previous heart rate cycle is divided into a plurality of heart rate frequency bands according to the tolerance range.

6. The system according to claim 1, characterized in that The step of obtaining the planned detection interval duration in each heart rate statistical period according to the heart rate at each detection moment in each heart rate statistical period, include, The maximum value of the heart rate at each detection moment in each heart rate statistics period is taken as the detected heart rate in the heart rate statistics period; Half of the cardiac cycle duration corresponding to the detected heart rate within the heart rate statistics period is used as the planned detection interval duration within the heart rate statistics period.

7. The system according to claim 1, characterized in that The step of obtaining each detection moment in the next heart rate cycle according to the planned detection interval duration in each heart rate statistical period includes: In each of the heart rate statistics time periods in the next heart rate cycle, each of the heart rate statistics time periods is divided according to the corresponding planned detection interval duration to obtain each detection moment in each of the heart rate statistics time periods in the next heart rate cycle.

8. The system according to claim 1, characterized in that Also includes, After the sleep control unit sends each detection moment in the next heart rate cycle to the heart rate detection device, the sleep control unit enters the sleep mode.

9. The system according to claim 8, characterized in that Also includes, Continuously determining whether the real-time heart rate in the current heart rate cycle exceeds the maximum value in the previous heart rate cycle; If yes, waking up the sleep control unit; The sleep control unit controls the heart rate detection device to detect the heart rate of the human body according to the maximum detection frequency.

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