Vehicle-mounted fragrance control method and system

Abstract

The invention relates to a vehicle-mounted fragrance control method and a vehicle-mounted fragrance control system, which realize an intermittent fragrance output strategy, and automatically adjust the intermittent fragrance output duration by acquiring the rotating speed of a fan and setting the working duration. The intermittent fragrance output time strategy is automatically adjusted according to the concentration request of the user so as to flexibly adapt to different scenes, the individual requirements of different people are met, and different experiences can be felt when fragrance appears. Therefore, the problems that existing vehicle-mounted fragrance concentration adjustment is not personalized enough and is poor in flexibility are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle-mounted facilities, and in particular to a vehicle-mounted fragrance control method, system and electronic equipment. Background Art

[0002] With the rapid development of automobile intelligence, users' demand for personalized cars and higher comfort has attracted widespread attention, and the intelligent car fragrance system has come into being. The system uses an electronic device to transmit the fragrance through the air pipe to the car air conditioning system, so that the air conditioning can evenly distribute the clear and pleasant fragrance to the entire car space. The in-car intelligent fragrance can control the switch according to the setting, and adjust the fragrance concentration, mode and working interval time through various intelligent methods such as WeChat applet, voice or smart control panel to create a unique fragrance environment for the car owner.

[0003] The car fragrance system can evenly evaporate and diffuse the fragrance in the car space by rationally utilizing fragrance essential oils and fragrance equipment, thus removing odors in the car, purifying the air quality and creating a comfortable fragrance environment for the car owner.

[0004] The intelligent fragrance system generally includes the following structures: a fragrance container for containing one or more fragrances with different aromatic smells; a car display screen, which can be used to turn the fragrance system on and off and select the pushed fragrance theme and customized fragrance theme; an audio control system, which pre-sets a variety of fragrance working modes and selects the fragrance working mode through the human-computer interaction interface of the audio system; a fragrance controller, including a memory module and a control module, the memory module is used to store a variety of fragrance themes and push them to the user through the car display screen; a fragrance actuator, including an air duct, a fragrance container, a valve and a blower. When the fragrance control system is connected to the fragrance actuator signal, when different fragrance themes are selected, the fragrance control system sends a shutter opening or closing signal to the corresponding shutter controller. When different fragrance concentrations are selected, the fragrance control system can control the blower by changing the current, change the blower air volume, and achieve control of the fragrance concentration.

[0005] Through PID adjustment, the release of fragrance in the car fragrance system can be accurately controlled to ensure that the concentration and dispersion uniformity of the fragrance are in the best state. PID adjustment is an adjustment method in an automatic control system, which aims to solve the contradiction between system stability and accuracy. The PID regulator is actually an amplifier with an automatically adjustable amplification factor, which is composed of proportional integral PI and proportional differential PD elements. When dynamic, the amplification factor is low to prevent overshoot and oscillation in the system; when static, the amplification factor is high to capture small error signals and improve control accuracy. The in-vehicle intelligent fragrance system combined with PID adjustment technology provides car owners with a more comfortable and personalized driving experience.

[0006] However, the existing method of adjusting the concentration of vehicle-mounted fragrance mainly controls the rate of fragrance emission by adjusting the fan speed to achieve the purpose of adjusting the concentration of fragrance. However, the existing vehicle-mounted fragrance concentration adjustment is relatively simple and the control strategy for fan speed adjustment is single. Most of them adopt PID adjustment strategy, such as monitoring the wind speed value every 50ms or so. This makes the intermittent fragrance emission time of fragrance fixed in the application field of intermittent fragrance emission, and it is impossible to achieve self-adjusting closed-loop control of the intermittent fragrance emission time according to the input of different fan speeds, thereby failing to meet the perception needs of different customers for concentration, and the intermittent fragrance emission time cannot be intelligently adjusted according to the fan speed request. Summary of the invention

[0007] To solve the above problems:

[0008] In one aspect, the present application provides a method for controlling vehicle fragrance, comprising the following steps:

[0009] Get fan speed: RPM;

[0010] Get the continuous working time of the fan set by the user, that is, the fragrance working time set by the user;

[0011] Calculate the closing time based on the ratio;

[0012] Turn on intermittent fragrance;

[0013] Finish.

[0014] As an optional implementation scheme of the present application, optionally, calculating the shutdown duration according to the ratio includes:

[0015] make:

[0016] Stop time / working time = K,

[0017] K = RPM / 2500;

[0018] Then we have:

[0019] Stop time = working time × (RPM / 2500);

[0020] generating a corresponding fan control signal according to the stop duration;

[0021] The fan control signal is executed to control the intermittent fragrance emission.

[0022] As an optional implementation scheme of the present application, optionally, the working time satisfies:

[0023] Working time ≤5min.

[0024] As an optional implementation scheme of the present application, optionally, the value range of K satisfies:

[0025] 0<K≤2.

[0026] On the other hand, the present application provides a vehicle-mounted fragrance control system for implementing the vehicle-mounted fragrance control method, comprising:

[0027] Speed ​​sensor, used to obtain fan speed: RPM;

[0028] The vehicle computer display is used to obtain the continuous working time of the fan set by the user, that is, the fragrance working time set by the user;

[0029] The fragrance controller is used to calculate the closing time according to the ratio and control the fragrance actuator to start intermittent fragrance emission;

[0030] A fragrance actuator, used to respond to intermittent fragrance;

[0031] The rotation speed sensor, the vehicle display and the fragrance actuator are respectively connected to the fragrance controller for communication.

[0032] As an optional implementation scheme of the present application, optionally, the fragrance controller calculates the closing time according to the ratio, and controls the fragrance actuator to start intermittent fragrance emission, including:

[0033] Calculate the stop time:

[0034] Stop time = working time × (RPM / 2500);

[0035] Generate a corresponding fan control signal according to the stop duration and send it to the fragrance actuator;

[0036] The fragrance actuator receives and executes the fan control signal, starts the fan, and controls the intermittent fragrance emission.

[0037] In another aspect, the present application further provides an electronic device, comprising:

[0038] processor;

[0039] a memory for storing processor-executable instructions;

[0040] Wherein, the processor is configured to implement the vehicle-mounted fragrance control method when executing the executable instructions.

[0041] Technical effects of the present invention:

[0042] The present invention proposes a method for adjusting the concentration of vehicle-mounted fragrance to realize an intermittent fragrance strategy. By obtaining settings including the fan speed acquisition and the working time, the intermittent fragrance time is automatically adjusted. The intermittent fragrance time strategy of the fragrance is automatically adjusted according to the user's concentration request to flexibly adapt to different scenes, meet the personalized needs of different people, and feel different experiences when the fragrance appears. This solves the problem that the existing vehicle-mounted fragrance concentration adjustment is not personalized enough and has poor flexibility.

[0043] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0045] Figure 1 It is shown as a schematic diagram of the implementation process of the present invention;

[0046] Figure 2 It is shown as a linear relationship curve diagram of the rotation speed and the ratio k of the present invention;

[0047] Figure 3 Shown is a schematic diagram of the system composition structure of the present invention;

[0048] Figure 4 It is a schematic diagram showing the application of the electronic device of the present invention. DETAILED DESCRIPTION

[0049] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0050] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0051] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present disclosure.

[0052] Example 1

[0053] like Figure 1As shown, in one aspect, the present application proposes a vehicle-mounted fragrance control method, comprising the following steps:

[0054] Get fan speed: RPM;

[0055] Get the continuous working time of the fan set by the user, that is, the fragrance working time set by the user;

[0056] Calculate the closing time based on the ratio;

[0057] Turn on intermittent fragrance;

[0058] Finish.

[0059] Please understand the composition of the in-vehicle intelligent fragrance system in conjunction with the existing fragrance technology background:

[0060] The intelligent fragrance system generally includes the following structures: a fragrance container for containing one or more fragrances with different aromatic smells; a car display screen, which can be used to turn the fragrance system on and off and select the pushed fragrance theme and customized fragrance theme; an audio control system, which pre-sets a variety of fragrance working modes and selects the fragrance working mode through the human-computer interaction interface of the audio system; a fragrance controller, including a memory module and a control module, the memory module is used to store a variety of fragrance themes and push them to the user through the car display screen; a fragrance actuator, including an air duct, a fragrance container, a valve and a blower. When the fragrance control system is connected to the fragrance actuator signal, when different fragrance themes are selected, the fragrance control system sends a shutter opening or closing signal to the corresponding shutter controller. When different fragrance concentrations are selected, the fragrance control system can control the blower by changing the current, change the blower air volume, and achieve control of the fragrance concentration.

[0061] The fan speed can be obtained by the speed sensor in the vehicle system and fed back to the fragrance controller (MCU or PID control chip, etc.).

[0062] The car technology has reserved an interface for adjusting the working time, allowing users to input parameters through the car display screen.

[0063] The proportion value k is preset in the controller. When the user inputs the corresponding working time and reads the speed value, the corresponding stop time is calculated according to the intermittent fragrance control algorithm set by the present invention, and the corresponding fan intermittent shutdown control signal is generated to control the fragrance actuator (including the fan of the fragrance system, etc.) to achieve the corresponding stop time. When the stop time is reached, it will restart to perform intermittent cycles. In this way, the intermittent fragrance time of the fragrance can be dynamically adjusted, and the self-regulating closed-loop control of the intermittent fragrance time of the fragrance can be realized according to the input of different fan speeds, thereby meeting the perception of concentration of different customers.

[0064] like Figure 2 As shown, as an alternative implementation of the present application, optionally, calculating the shutdown duration according to the ratio includes:

[0065] Let:

[0066] Shutdown duration / Working duration = K

[0067] K = RPM / 2500;

[0068] Then:

[0069] Shutdown duration = Working duration × (RPM / 2500);

[0070] Generate a corresponding fan control signal according to the shutdown duration;

[0071] Execute the fan control signal to control the intermittent fragrance emission.

[0072] As an alternative implementation of the present application, optionally, the working duration satisfies:

[0073] Working duration ≤ 5 min.

[0074] As an alternative implementation of the present application, optionally, the value range of K satisfies:

[0075] 0 < K ≤ 2.

[0076] The specific implementation solution is as follows:

[0077] Enter the intermittent fragrance emission strategy flowchart. According to the attached Figure 1 design, an interface for adjusting the working duration of the fan is reserved for users. The factory default value is 2 minutes. Only need to input the working duration of the fragrance (0 - 5 minutes), and this system will automatically adjust the intermittent fragrance emission strategy according to the fan speed (RPM) and the input working duration (input through the vehicle head unit). The ratio value K of the shutdown duration to the working duration ranges from 0 < K <= 2 (the relationship diagram between the speed and the ratio value is as shown in the attached Figure 2 figure), and the functional relationship between K and RPM is K = RPM / 2500;

[0078] Remark: Assume that the working duration is set to 2 minutes and the speed request is 2500 RPM. According to the ratio calculation, the shutdown duration is 2 minutes. Therefore, the intermittent fragrance emission strategy is: the fan works for 2 minutes and stops for 2 minutes.

[0079] Through this automatic adjustment strategy for intermittent fragrance emission, people can better feel a change between the disappearance and reappearance of the fragrance, thus experiencing the pleasure brought by the fragrance more deeply.

[0080] Based on the above scheme, the present invention can further use a fragrance concentration meter or sensor to detect the fragrance concentration, and adjust the stop time in combination with the concentration. Because different concentrations also affect the fragrance stop time, if the concentration is high, the stop time can be appropriately extended; otherwise, the stop time can be reduced.

[0081] In order to combine the monitored fragrance concentration value, the stop time of the fragrance system is adaptively adjusted so that the stop time is inversely proportional to the concentration, and the optimal stop time corresponding to the concentration is found through the adaptive algorithm. The following methods can be combined to continue calculation and adjustment

[0082] 1. Initialization parameters

[0083] Calculate the initial stop duration: T_stop_initial (that is, the stop duration initially calculated in the above method) as a preset initial stop duration value.

[0084] Set the concentration threshold range: [C_min, C_max], which is the effective monitoring range of fragrance concentration. It can be pre-set by the manufacturer and configured in the controller.

[0085] Set the adjustment step size: step, which is used to gradually approach the optimal stop time during the adaptive adjustment process.

[0086] Set the convergence condition: epsilon, which is used to determine whether the algorithm has found an optimal stopping time that is close enough.

[0087] 2. Real-time monitoring of fragrance concentration

[0088] Use the sensor to monitor the current fragrance concentration value C_current in real time.

[0089] 3. Calculate the stop duration adjustment factor

[0090] According to the current concentration value C_current and the concentration threshold range [C_min, C_max], an adjustment factor k is calculated so that k is inversely proportional to the concentration. For example, a simple inverse function or a more complex nonlinear function can be used to calculate k.

[0091] k=k_base / (C_current-C_min+offset), wherein k_base is a reference value and offset is a small positive number used to avoid the denominator being zero.

[0092] 4. Adjust the stop time

[0093] The stop duration is adjusted using the adjustment factor k, for example, T_stop_new = T_stop_initial*k.

[0094] In order to avoid the stop time being too long or too short, an upper and lower limit of the stop time [T_min, T_max] can be set, and the calculated T_stop_new can be restricted.

[0095] 5. Apply new stop duration and monitor the effect

[0096] The new stop duration T_stop_new is applied to the fragrance system, and the performance of the system under the stop duration (such as changes in fragrance concentration, user feedback, etc.) is recorded.

[0097] 6. Adaptive Adjustment

[0098] According to the performance of the system, an adaptive algorithm (such as gradient descent, genetic algorithm, etc.) is used to gradually adjust the stop time to make it closer to the optimal value.

[0099] You can set an upper limit on the number of iterations or a convergence condition epsilon, and stop the iteration when these conditions are reached.

[0100] In each iteration, a new stop duration can be calculated based on the current performance and the state of the system can be updated.

[0101] 7. Find the best stop time

[0102] When the adaptive algorithm converges or reaches the upper limit of the number of iterations, it is considered that the optimal stop time corresponding to the current concentration has been found.

[0103] This optimal stop time is saved and used for subsequent control.

[0104] 8. Continuous monitoring and adjustment

[0105] Since the fragrance concentration may change over time and with changes in the environment, it is necessary to continuously monitor the concentration value and repeat the above steps to adjust the stop time as needed.

[0106] Precautions

[0107] In practical applications, the algorithm may need to be fine-tuned to suit the specific system and environment.

[0108] The selection and design of adaptive algorithms need to be based on the characteristics and requirements of the system.

[0109] The sensors that monitor concentrations need to have sufficient precision and stability to ensure the accuracy of the algorithm.

[0110] Considering the real-time performance and computational complexity, the algorithm implementation needs to be efficient and feasible.

[0111] Through the above steps, an algorithm for adaptively adjusting the stop time of the fragrance system can be implemented, so that the stop time is inversely proportional to the concentration, and the optimal stop time corresponding to the concentration is found through the adaptive algorithm.

[0112] Therefore, the present application automatically provides an intermittent fragrance adjustment strategy through speed input, which can effectively improve the rationality of the fragrance concentration adjustment design and the personalized diversity of the existing vehicle-mounted fragrance concentration adjustment methods, and further improve the sense of technology and experience of using vehicle-mounted fragrances.

[0113] Obviously, those skilled in the art should understand that the implementation of all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments. Those skilled in the art can understand that the implementation of all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory (Flash Memory), a hard disk (Hard Disk Drive, abbreviated as: HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0114] Example 2

[0115] like Figure 3 As shown, based on the implementation principle of Example 1, the present application, on the other hand, proposes a vehicle-mounted fragrance control system for implementing the vehicle-mounted fragrance control method, including:

[0116] Speed ​​sensor, used to obtain fan speed: RPM;

[0117] The vehicle computer display is used to obtain the continuous working time of the fan set by the user, that is, the fragrance working time set by the user;

[0118] The fragrance controller is used to calculate the closing time according to the ratio and control the fragrance actuator to start intermittent fragrance emission;

[0119] A fragrance actuator, used to respond to intermittent fragrance;

[0120] The rotation speed sensor, the vehicle display and the fragrance actuator are respectively connected to the fragrance controller for communication.

[0121] As an optional implementation scheme of the present application, optionally, the fragrance controller calculates the closing time according to the ratio, and controls the fragrance actuator to start intermittent fragrance emission, including:

[0122] Calculate the stop time:

[0123] Stop time = working time × (RPM / 2500);

[0124] Generate a corresponding fan control signal according to the stop duration and send it to the fragrance actuator;

[0125] The fragrance actuator receives and executes the fan control signal, starts the fan, and controls the intermittent fragrance emission.

[0126] Please understand and implement the specific system composition and its working principle in conjunction with Example 1, which will not be described in detail in this example.

[0127] The modules or steps of the present invention described above can be implemented by a general-purpose computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0128] Example 3

[0129] like Figure 4 As shown, further, in another aspect, the present application also proposes an electronic device, including:

[0130] processor;

[0131] a memory for storing processor-executable instructions;

[0132] Wherein, the processor is configured to implement the vehicle-mounted fragrance control method when executing the executable instructions.

[0133] The electronic device according to the embodiment of the present disclosure includes a processor and a memory for storing instructions executable by the processor, wherein the processor is configured to implement any of the above-mentioned vehicle-mounted fragrance control methods when executing the executable instructions.

[0134] Here, it should be noted that the number of processors can be one or more. At the same time, the electronic device in the embodiment of the present disclosure may also include an input device and an output device. Among them, the processor, memory, input device and output device may be connected through a bus or in other ways, which are not specifically limited here.

[0135] The memory, as a computer-readable storage medium, can be used to store software programs, computer executable programs and various modules, such as the program or module corresponding to the vehicle-mounted fragrance control method of the embodiment of the present disclosure. The processor executes various functional applications and data processing of the electronic device by running the software programs or modules stored in the memory.

[0136] The input device can be used to receive input numbers or signals. The signal can be a key signal related to user settings and function control of the device / terminal / server. The output device can include a display device such as a display screen.

[0137] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical 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. A vehicle-mounted fragrance control method, characterized in that: The steps include: Get fan speed: RPM; Get the continuous working time of the fan set by the user, that is, the fragrance working time set by the user; Calculate the closing time based on the ratio; Turn on intermittent fragrance; Finish.

2. A vehicle-mounted fragrance control method according to claim 1, characterized in that: The calculation of the closing time according to the ratio includes: make: Stop time / working time = K, K = RPM / 2500; Then we have: Stop time = working time × (RPM / 2500); generating a corresponding fan control signal according to the stop duration; The fan control signal is executed to control the intermittent fragrance emission.

3. A vehicle-mounted fragrance control method according to claim 2, characterized in that: The working hours meet the following requirements: Working time ≤5min.

4. A vehicle-mounted fragrance control method according to claim 2, characterized in that: The K value range satisfies: 0＜K≤2。 5. A vehicle-mounted fragrance control system, used to implement a vehicle-mounted fragrance control method as described in claims 1-4, characterized in that: include: Speed ​​sensor, used to obtain fan speed: RPM; The vehicle computer display is used to obtain the continuous working time of the fan set by the user, that is, the fragrance working time set by the user; The fragrance controller is used to calculate the closing time according to the ratio and control the fragrance actuator to start intermittent fragrance emission; A fragrance actuator, used to respond to intermittent fragrance; The rotation speed sensor, the vehicle display and the fragrance actuator are respectively connected to the fragrance controller for communication.

6. The vehicle-mounted fragrance control system according to claim 5, characterized in that: The fragrance controller calculates the closing time according to the ratio, and controls the fragrance actuator to start intermittent fragrance emission, including: Calculate the stop time: Stop time = working time × (RPM / 2500); Generate a corresponding fan control signal according to the stop duration and send it to the fragrance actuator; The fragrance actuator receives and executes the fan control signal, starts the fan, and controls the intermittent fragrance emission.

7. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to implement a vehicle-mounted fragrance control method as described in any one of claims 1-4 when executing the executable instructions.

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