A vehicle massage seat control method, device and computer readable storage medium

Abstract

The application discloses a vehicle massage seat control method and device and a computer readable storage medium, wherein the method comprises the following steps: acquiring heart rate data of a passenger located on a vehicle massage seat in real time, and calculating real-time heart rate variability according to the heart rate data; judging whether the real-time heart rate variability is less than a preset fatigue threshold value, and if yes, prompting the passenger to start or not to start a seat massage function; and in response to the operation of the passenger according to the prompt, controlling the vehicle massage seat to start the massage function. According to the application, the heart rate of the passenger is monitored, the heart rate variability calculated from the heart rate data is utilized to analyze and judge the fatigue state of the passenger, and when it is determined that the passenger is in a fatigue state, the passenger is prompted to start or not to start the seat massage function, and then the massage seat is automatically controlled to start the seat massage function according to the corresponding operation of the passenger, so that the operation complexity is reduced, and the intelligent level of the vehicle massage seat is improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent driving technology, and specifically to a vehicle massage seat control method, device, and computer-readable storage medium. Background Technology

[0002] Traditional vehicle seat massage functions are typically controlled manually by the user, such as selecting massage modes, intensity levels, and duration. With the development of smart cockpits, vehicle seats are becoming increasingly intelligent. However, there is currently no technology that can automatically control the massage seat based on occupant fatigue levels. Occupants may not remember to turn on the massage when fatigued, resulting in low usage rates for the function. Furthermore, the massage function does not automatically turn off or adjust its intensity, requiring manual operation. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a vehicle massage seat control method, device and computer-readable storage medium, so as to realize automatic control of the massage seat according to the fatigue state of the occupant and improve the intelligence level of the vehicle massage seat.

[0004] To solve the above-mentioned technical problems, the present invention provides a vehicle massage seat control method, comprising the following steps:

[0005] The heart rate data of the occupant located on the vehicle massage seat is acquired in real time, and the real-time heart rate variability is calculated based on the heart rate data;

[0006] Determine whether the real-time heart rate variability is less than a preset fatigue threshold; if so, prompt the occupant whether to activate the seat massage function.

[0007] In response to the occupant's operation based on the prompts, the vehicle's massage seat is controlled to activate its massage function.

[0008] Preferably, the real-time acquisition of the heart rate data of the occupant located on the vehicle massage seat specifically includes: transmitting millimeter waves to the occupant's body via millimeter-wave radar, performing spectrum analysis on the returned millimeter waves, and thus calculating the occupant's heart rate.

[0009] Preferably, the step of calculating real-time heart rate variability based on the heart rate data specifically includes:

[0010] Calculate the time difference between two consecutive heartbeats to obtain the RR interval sequence;

[0011] According to the time domain method, calculate the standard deviation SDNN of all RR interval sequences, or calculate the root mean square SD of the difference between adjacent RR interval sequences; or calculate the proportion pNN50 of RR interval sequences that change for more than 50ms; or according to the frequency domain method, perform a fast Fourier transform on the RR interval sequence to obtain its frequency domain representation, and then calculate the ratio of low-frequency energy to high-frequency energy.

[0012] Preferably, determining whether the real-time heart rate variability is less than a preset fatigue threshold, and if so, prompting the occupant to activate the seat massage function, specifically includes:

[0013] If the real-time heart rate variability is less than a first fatigue threshold, then after a set time period, if the real-time heart rate variability is less than a second fatigue threshold, then prompt the occupant to activate the seat massage function; wherein the second fatigue threshold is less than the first fatigue threshold.

[0014] Preferably, the method further includes: when the real-time heart rate variability reaches a recovery threshold, determining whether the real-time heart rate variability has reached a preset recovery threshold; if so, prompting the occupant whether to turn off the seat massage function; and responding to the occupant's operation according to the prompt, controlling the vehicle massage seat to turn off the massage function.

[0015] Preferably, the prompting of the occupant regarding whether to turn the seat massage function on or off includes playing voice prompts through the in-vehicle entertainment system, or displaying text prompts through the instrument panel or display screen.

[0016] Preferably, after the vehicle massage seat activates its massage function, the corresponding fatigue level is obtained based on the preset threshold range of the real-time heart rate variability, and a preset massage strategy is executed based on the fatigue level. The massage strategy includes at least massage intensity and massage duration.

[0017] The present invention also provides a vehicle massage seat control device, including...

[0018] The calculation module is used to acquire the heart rate data of the occupant located on the vehicle massage seat in real time, and calculate the real-time heart rate variability based on the heart rate data;

[0019] The prompting module is used to determine whether the real-time heart rate variability is less than a preset fatigue threshold. If so, it prompts the occupant whether to turn on the seat massage function.

[0020] The control module is used to control the vehicle massage seat to activate the massage function in response to the occupant's operation based on the prompts.

[0021] The present invention also provides a vehicle massage seat control device, comprising:

[0022] One or more processors;

[0023] Memory;

[0024] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to perform the vehicle massage seat control method.

[0025] The present invention also provides a computer-readable storage medium comprising a stored computer program; wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform the vehicle massage seat control method.

[0026] The present invention offers the following advantages: By monitoring the heart rate of occupants and utilizing the heart rate variability calculated from the heart rate data, the invention analyzes and determines the occupants' fatigue state. When the occupants are determined to be fatigued, the invention prompts them to activate the seat massage function. Based on the occupants' responses, the invention automatically activates the massage function, reducing operational complexity and improving the intelligence level of the vehicle's massage seat. Furthermore, it can provide personalized massage based on the occupants' real-time fatigue state, offering a more personalized driving and riding experience. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a flowchart illustrating a vehicle massage seat control method according to an embodiment of the present invention. Detailed Implementation

[0029] The following description of the embodiments is taken with reference to the accompanying drawings, which illustrate specific embodiments in which the invention can be implemented.

[0030] Please refer to Figure 1 As shown, Embodiment 1 of the present invention provides a vehicle massage seat control method, including the following steps:

[0031] The heart rate data of the occupant located on the vehicle massage seat is acquired in real time, and the real-time heart rate variability is calculated based on the heart rate data;

[0032] Determine whether the real-time heart rate variability is less than a preset fatigue threshold; if so, prompt the occupant whether to activate the seat massage function.

[0033] In response to the occupant's operation based on the prompts, the vehicle's massage seat is controlled to activate its massage function.

[0034] As can be seen from the above steps, this embodiment of the invention monitors the heart rate of the occupants and uses the heart rate variability calculated from the heart rate data to analyze and judge the fatigue state of the occupants. When it is determined that the occupants are in a fatigue state, it prompts whether to turn on the seat massage function. Then, based on the occupants' corresponding operations, it automatically controls the massage seat to turn on the seat massage function, thereby improving the intelligence level of the vehicle massage seat.

[0035] Specifically, this embodiment of the invention first monitors whether there is an occupant on the vehicle's massage seat using seat sensors when the vehicle is powered on. Specifically, seat occupancy sensors typically use pressure or weight sensors to detect changes in pressure or weight on the seat. When an occupant sits on the seat, the weight of the seat changes, and this change is captured by the sensor, thus determining that there is an occupant. Meanwhile, if there is no occupant on the seat, the sensor output will remain stable. In addition, some seat sensors use capacitive sensors to detect the effect of a person sitting on the seat on capacitance, thereby determining that there is a passenger on the seat. This embodiment does not limit the type of seat sensor.

[0036] The method for obtaining passenger heart rate data in this embodiment of the invention is as follows: a millimeter-wave radar transmits millimeter waves to the passenger's body, and the returned millimeter waves are subjected to spectrum analysis to calculate the passenger's heart rate.

[0037] As is understandable, millimeter-wave radar is a type of radar that can emit electromagnetic waves in the frequency range of 30 to 300 GHz. Due to its short wavelength, it is highly sensitive to minute movements, especially those on the body surface (such as the chest). First, millimeter-wave radar emits electromagnetic waves of a specific frequency. When these waves encounter the occupant's chest and are reflected back, their frequency changes due to the Doppler effect. The magnitude of this frequency change is related to the amplitude of the heartbeat; the greater the amplitude of the heartbeat, the greater the frequency change of the reflected millimeter waves. By measuring these frequency changes and performing spectral analysis on the returning millimeter waves, the heart rate can be calculated.

[0038] For example, obtain the peak frequency representing the heart rate within a frequency range that may represent the heart rate (e.g., 0.5 to 4 Hz, corresponding to 30 to 240 heartbeats per minute); then calculate the heart rate based on the peak frequency using the following formula:

[0039] Heart rate = peak frequency × 60

[0040] Multiply the known peak heart rate (Hz) by 60 to get the number of heartbeats per minute, i.e., heart rate (beats / minute).

[0041] After obtaining heart rate data, this embodiment of the invention further calculates heart rate variability (HRV) based on the heart rate data.

[0042] It's important to note that heart rate variability (HRV) refers to the variation in the intervals between consecutive heartbeats (RR intervals) over a fixed period. It's an indicator that reflects the balance and activity of the sympathetic and parasympathetic nervous systems, and can also be used to assess stress, recovery, and overall health. In cases of fatigue or increased stress, sympathetic nerve activity increases while parasympathetic nerve activity decreases, leading to a decrease in HRV.

[0043] HRV can be analyzed from both the time and frequency domains. In the time domain, for example, a decrease in SDNN (standard deviation of all NN intervals) may indicate fatigue or increased stress. In the frequency domain, an increase in LF (low-frequency component) and a decrease in HF (high-frequency component) may mean increased sympathetic activity and decreased parasympathetic activity, which can also be a sign of fatigue or stress.

[0044] The common method for calculating HRV is to calculate the time difference between two consecutive heartbeats (i.e., R-wave to R-wave) to obtain the RR interval sequence. Taking the time-domain method as an example, one can calculate the standard deviation of all RR interval sequences (SDNN), or calculate the root mean square of the differences between adjacent RR interval sequences (RMSSD): the sum of squares of the differences between consecutive RR interval sequences, the square root, and the mean; or calculate the proportion of RR interval sequences that change by more than 50 ms (pNN50). This embodiment does not impose specific limitations on this. Alternatively, according to the frequency-domain method, a fast Fourier transform is performed on the RR interval sequence to obtain its frequency domain representation, and then the ratio of low-frequency (LF) energy to high-frequency (HF) energy is calculated.

[0045] As mentioned earlier, real-time heart rate variability can characterize the occupant's real-time fatigue state. Therefore, the obtained real-time heart rate variability is compared with a preset fatigue threshold. If the real-time heart rate variability is less than the preset fatigue threshold, it indicates that the occupant is fatigued, and at this time, the occupant is prompted to activate the seat massage function. The prompt can be a voice prompt in the passenger compartment—playing the voice prompt "Activate seat massage function?" through the in-vehicle entertainment system, or displaying the text "Activate seat massage function?" on the instrument panel or screen, or other interactive methods. By prompting first rather than directly activating the seat massage function, the occupant is given greater autonomy, avoiding unintended operations.

[0046] Accordingly, if the occupant agrees to activate the seat massage function, the response to the prompt can be a voice reply of "agree," or clicking or touching the virtual "agree" button on the display screen. Subsequently, in response to the occupant's operation based on the prompt, the vehicle's massage seat is controlled to activate the massage function, thereby achieving automated control.

[0047] As a further improvement to this invention, a more accurate judgment method is provided when comparing the obtained real-time heart rate variability with a preset fatigue threshold:

[0048] If the real-time heart rate variability is less than a first fatigue threshold, then after a set time period, if the real-time heart rate variability is less than a second fatigue threshold, then prompt the occupant to activate the seat massage function; wherein the second fatigue threshold is less than the first fatigue threshold.

[0049] In this improved judgment method, the first step is to determine whether the real-time heart rate variability is less than a first fatigue threshold. If it is less than the first fatigue threshold, it indicates that the occupant may be beginning to show signs of mild fatigue. At this point, the real-time heart rate variability can be judged again after a set time period to see if it is less than a second fatigue threshold. This set time period may be several minutes or longer, depending on the application scenario and requirements. If the real-time heart rate variability value is less than the second fatigue threshold within the set time period (the second fatigue threshold being less than the first fatigue threshold indicates a lower tolerance for fatigue), it indicates that the occupant may already be in a state of fatigue. In this case, the occupant is prompted whether they need to activate the seat massage function. The prompting method is as described above and will not be repeated here. It should be noted that in some cases, the second fatigue threshold needs to be increased by a certain safety margin based on the first fatigue threshold to ensure that there are no false positives or false negatives.

[0050] Since the first and second fatigue thresholds represent different levels of fatigue, comparing the two thresholds allows for a more accurate assessment of an occupant's fatigue state. Secondly, by making a second assessment after a set time period, errors caused by short-term fluctuations or misjudgments can be avoided. Finally, it allows occupants to better understand their physical condition and decide whether they need to take measures to alleviate fatigue.

[0051] Because the occupant's heart rate is acquired in real time, and thus real-time heart rate variability is obtained, the occupant's fatigue state can be monitored in real time, and the seat massage function can be automatically turned off when the occupant's fatigue state disappears, eliminating the need for manual operation. Specifically, when the real-time heart rate variability reaches a recovery threshold, it is determined whether the real-time heart rate variability has reached a preset recovery threshold. If so, the occupant is prompted to turn off the seat massage function; in response to the occupant's operation based on the prompt, the vehicle's massage seat is controlled to turn off the massage function. As the occupant's fatigue state decreases or disappears, their heart rate variability will gradually increase; therefore, the recovery threshold should be higher than the fatigue threshold. For the prompting method and the corresponding operation method of the occupant, please refer to the foregoing explanation, which will not be repeated here.

[0052] It should also be noted that when the seat massage function is activated, it simultaneously performs a preset massage duration and intensity. Furthermore, based on real-time monitoring of occupant fatigue levels, this embodiment also includes a mechanism to obtain and execute a matching massage strategy according to the occupant's fatigue level.

[0053] Fatigue levels can be determined based on different real-time heart rate variability (HRV) values ​​and threshold values. Generally, lower HRV indicates greater fatigue and a higher fatigue level. Therefore, the corresponding fatigue level can be obtained by determining which preset threshold range the HRV falls within.

[0054] For example, threshold ranges for heart rate variability indicators (such as RMSSD and SDNN) can be set based on existing research and population statistics. Each threshold range corresponds to a fatigue level, as shown in the following example:

[0055] High fatigue: RMSSD < 30ms or SDNN < 50ms

[0056] Moderate fatigue: 30ms ≤ RMSSD < 50ms or 50ms ≤ SDNN < 100ms

[0057] Mild fatigue: RMSSD ≥ 50ms or SDNN ≥ 100ms

[0058] Understandably, the threshold range is set between the fatigue threshold and the recovery threshold. If the fatigue threshold is not reached, there will be no prompt to activate the seat massage function; if the recovery threshold is reached, there will be a prompt to deactivate the seat massage function.

[0059] Each fatigue level also corresponds to a preset massage strategy, and each massage strategy includes at least massage intensity and massage duration, for example:

[0060] Massage strategies for high fatigue: Massage intensity: maximum (based on the maximum intensity set by the massage chair itself); Massage duration: maximum (e.g., 20-30 minutes);

[0061] Massage strategy for moderate fatigue: Massage intensity: moderate (based on the moderate intensity setting of the massage chair itself); Massage duration: moderate (e.g., 15-20 minutes);

[0062] Massage strategies for high fatigue: Massage intensity: minimum (based on the minimum intensity set by the massage chair itself); Massage duration: minimum (e.g., 10 minutes).

[0063] This mechanism enables personalized massage based on the passenger's real-time fatigue level. It not only enhances the passenger experience but also helps improve their focus and work efficiency, which is particularly beneficial for those who drive or work long hours.

[0064] Corresponding to the vehicle massage seat control method described in Embodiment 1 of the present invention, Embodiment 2 of the present invention also provides a vehicle massage seat control device, comprising:

[0065] The calculation module is used to acquire the heart rate data of the occupant located on the vehicle massage seat in real time, and calculate the real-time heart rate variability based on the heart rate data;

[0066] The prompting module is used to determine whether the real-time heart rate variability is less than a preset fatigue threshold. If so, it prompts the occupant whether to turn on the seat massage function.

[0067] The control module is used to control the vehicle massage seat to activate the massage function in response to the occupant's operation based on the prompts.

[0068] Corresponding to the vehicle massage seat control method described in Embodiment 1 of the present invention, Embodiment 3 of the present invention also provides a vehicle massage seat control device, comprising:

[0069] One or more processors;

[0070] Memory;

[0071] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to perform the vehicle massage seat control method according to Embodiment 1 of the present invention.

[0072] Corresponding to the vehicle massage seat control method described in Embodiment 1 of the present invention, Embodiment 4 of the present invention provides a computer-readable storage medium, the computer-readable storage medium including a stored computer program; wherein, when the computer program is running, it controls the device where the computer-readable storage medium is located to execute the vehicle massage seat control method as described in Embodiment 1 of the present invention.

[0073] Preferably, the computer program can be divided into one or more modules / units (such as computer program 1, computer program 2, ...), and the one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing a specific function, and the instruction segments are used to describe the execution process of the computer program in the device.

[0074] The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor. The processor is the control center of the device and connects the various parts of the device using various interfaces and lines.

[0075] The memory mainly includes a program storage area and a data storage area. The program storage area can store the operating system, applications required for at least one function, etc., while the data storage area can store related data, etc. Furthermore, the memory can be a high-speed random access memory, or a non-volatile memory, such as a plug-in hard drive, a SmartMedia Card (SMC), a Secure Digital (SD) card, and a Flash Card, or other volatile solid-state storage devices.

[0076] It should be noted that the above-mentioned devices may include, but are not limited to, processors and memory, as will be understood by those skilled in the art.

[0077] For the working principle and process of the above embodiments, please refer to the description of Embodiment 1 of the present invention, which will not be repeated here.

[0078] As explained above, compared with the prior art, the beneficial effects of the present invention are as follows: The embodiments of the present invention monitor the heart rate of occupants and use the heart rate variability calculated from the heart rate data to analyze and determine the occupant's fatigue state. When the occupant is determined to be fatigued, a prompt is given regarding whether to activate the seat massage function. Based on the occupant's corresponding operation, the massage seat is automatically activated, reducing operational complexity and improving the intelligence level of the vehicle massage seat. Furthermore, personalized massage can be provided based on the occupant's real-time fatigue state, offering a more personalized driving and riding experience.

[0079] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for controlling a vehicle massage seat, characterized in that, Includes the following steps: The heart rate data of the occupant located on the vehicle massage seat is acquired in real time, and the real-time heart rate variability is calculated based on the heart rate data; If the real-time heart rate variability is less than a first fatigue threshold, then after a set time period, if the real-time heart rate variability is less than a second fatigue threshold, then prompt the occupant to activate the seat massage function; wherein, the second fatigue threshold is less than the first fatigue threshold. In response to the occupant's operation based on the prompts, the vehicle's massage seat is controlled to activate its massage function.

2. The method according to claim 1, characterized in that, The real-time acquisition of heart rate data of occupants located on the vehicle massage seat specifically includes: transmitting millimeter waves to the occupant's body via millimeter-wave radar, performing spectrum analysis on the returned millimeter waves, and thus calculating the occupant's heart rate.

3. The method according to claim 2, characterized in that, The calculation of real-time heart rate variability based on the heart rate data specifically includes: Calculate the time difference between two consecutive heartbeats to obtain the RR interval sequence; According to the time domain method, calculate the standard deviation SDNN of all RR interval sequences, or calculate the root mean square SD of the difference between adjacent RR interval sequences; or calculate the proportion pNN50 of RR interval sequences that change for more than 50ms; or according to the frequency domain method, perform a fast Fourier transform on the RR interval sequence to obtain its frequency domain representation, and then calculate the ratio of low-frequency energy to high-frequency energy.

4. The method according to claim 1, characterized in that, Also includes: When the real-time heart rate variability reaches the recovery threshold, it is determined whether the real-time heart rate variability has reached the preset recovery threshold. If so, the occupant is prompted to turn off the seat massage function. In response to the occupant's operation based on the prompts, the massage function of the vehicle's massage seat is turned off.

5. The method according to claim 4, characterized in that, The prompts given to occupants regarding whether to turn the seat massage function on or off include playing voice prompts through the in-vehicle entertainment system or displaying text prompts through the instrument panel or screen.

6. The method according to claim 1, characterized in that, After the vehicle massage seat activates its massage function, the corresponding fatigue level is obtained based on the preset threshold range of the real-time heart rate variability, and a preset massage strategy is executed based on the fatigue level. The massage strategy includes at least massage intensity and massage duration.

7. A vehicle massage seat control device, characterized in that, include: The calculation module is used to acquire the heart rate data of the occupant located on the vehicle massage seat in real time, and calculate the real-time heart rate variability based on the heart rate data; The prompting module is used to determine whether the real-time heart rate variability is less than a first fatigue threshold. If so, it determines whether the real-time heart rate variability is less than a second fatigue threshold after a set time period. If so, it prompts the occupant whether to turn on the seat massage function. The second fatigue threshold is less than the first fatigue threshold. The control module is used to control the vehicle massage seat to activate the massage function in response to the occupant's operation based on the prompts.

8. A vehicle massage seat control device, characterized in that, include: One or more processors; Memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications being configured to perform the vehicle massage seat control method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program; wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform the vehicle massage seat control method as described in any one of claims 1 to 6.

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