Method and device for purifying air in vehicle, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicles, and discloses an in-vehicle air purification method and device, electronic equipment and a storage medium. The purification method comprises the steps that under the condition that a person exists in a vehicle, if the concentration of peculiar smell gas in the vehicle is larger than the first gas concentration and smaller than or equal to the second gas concentration, the air in the vehicle is purified; if the bacterial concentration is greater than the first bacterial concentration and less than or equal to the second bacterial concentration, opening a gas physical filtering function; if the concentration of the odorous gas is larger than the second gas concentration or the bacterial concentration is larger than the second bacterial concentration, the ozone release amount is determined according to the size, the temperature and the humidity of the space in the vehicle, and the gas catalytic decomposition function is started under the condition that the ozone is released, so that the reaction of the odorous gas and the ozone is catalyzed, and the excessive ozone is decomposed into oxygen. The air in the vehicle is purified in cooperation with different treatment modes, and the adaptive ozone release amount can be determined according to the environment in the vehicle, so that the air in the vehicle is accurately purified while the safety of passengers is considered.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a method, apparatus, electronic device, and storage medium for purifying in-vehicle air. Background Technology

[0002] The methods for improving in-vehicle air quality include any single method among physical adsorption, chemical decomposition, and ultraviolet sterilization. However, each of these three methods has its own drawbacks: physical adsorption has limited adsorption capacity for odor gases; chemical decomposition, while considering passenger safety, releases ozone to decompose odor gases when no one is in the vehicle, but both methods have low reaction efficiency; and ultraviolet sterilization can only kill bacteria in areas directly exposed to sunlight, leaving sterilization blind spots and failing to address odor gases.

[0003] Meanwhile, the methods for managing in-vehicle air quality are very mechanical. Generally, once the in-vehicle air quality is monitored and reaches the preset conditions, the corresponding air management operation is performed according to the preset fixed settings. It cannot be adapted to different scenarios in the vehicle and lacks a precise management system. Summary of the Invention

[0004] In view of the above problems, this application provides a method, device, electronic device and storage medium for purifying in-vehicle air, which purifies in-vehicle air in conjunction with different treatment methods, and can determine the appropriate ozone release amount according to the in-vehicle environment, so as to accurately purify in-vehicle air while taking into account the safety of occupants.

[0005] According to one aspect of this application, a method for purifying in-vehicle air is provided. The purification method includes: when there are people in the vehicle, if the concentration of odor gas in the vehicle is greater than a first gas concentration and less than or equal to a second gas concentration, and the bacterial concentration is greater than a first bacterial concentration and less than or equal to a second bacterial concentration, then activating a physical gas filtration function; if the concentration of odor gas is greater than the second gas concentration, or the bacterial concentration is greater than the second bacterial concentration, then determining the ozone release amount based on the size, temperature, and humidity of the in-vehicle space, and activating a gas catalytic decomposition function when ozone is released, to catalyze the reaction between the odor gas and ozone, and to decompose excess ozone into oxygen.

[0006] In one optional approach, the ozone emission is determined based on the size of the vehicle interior, temperature, and humidity, including: calculating the temperature difference between the vehicle interior temperature and a preset temperature, and the humidity difference between the vehicle interior humidity and a preset humidity; determining an ozone correction amount based on the temperature difference and the humidity difference; and determining the ozone emission amount based on the baseline ozone emission and the ozone correction amount; wherein the baseline ozone emission is determined based on the size of the vehicle interior.

[0007] In one alternative approach, the gas catalytic decomposition function is activated when ozone is released, including: if the ozone concentration inside the vehicle reaches a preset ozone concentration, the ozone release amount is updated to a preset first ozone release amount, and ozone is released at the preset first ozone release amount until the odor gas concentration is less than or equal to the first gas concentration, and the bacterial concentration is less than or equal to the first bacterial concentration.

[0008] In one alternative approach, the purification method further includes: when the vehicle is turned off and no one is inside, if the concentration of the odor gas is greater than the concentration of a third gas, or the concentration of bacteria is greater than the concentration of a third bacterium, then ozone is released based on a preset ozone release strategy.

[0009] In one optional approach, ozone is released based on a preset ozone release strategy, including: activating the backup power supply to turn on the vehicle's air conditioning recirculation function, and releasing ozone at a preset second ozone release amount and a preset release cycle until the odor gas concentration is reduced to the first gas concentration and the bacterial concentration is reduced to the first bacterial concentration; when the odor gas concentration is reduced to the first gas concentration and the bacterial concentration is reduced to the first bacterial concentration, ozone is released at a preset third ozone release amount until the release time reaches the preset release time.

[0010] In one alternative approach, the purification method further includes: monitoring the concentration of the odor gas and the concentration of the bacteria at a preset monitoring cycle when the preset release duration is reached, and releasing ozone again based on the preset ozone release strategy when the concentration of the odor gas is greater than the concentration of the third gas or the concentration of the bacteria is greater than the concentration of the third bacteria.

[0011] In one optional embodiment, the purification method further includes: responding to a user-triggered purification command, determining a personnel detection time and an ozone decomposition time based on a purification time indicated in the purification command, and determining a target preset ozone release amount, a target preset release duration, and a target preset decomposition duration based on a target purification mode indicated in the purification command; if no one is detected in the vehicle at the personnel detection time, releasing ozone at the target preset ozone release amount until the release duration reaches the target preset release duration, and activating the gas catalytic decomposition function at the ozone decomposition time until the decomposition time reaches the target preset decomposition duration.

[0012] According to another aspect of this application, an in-vehicle air purification device is provided, the purification device comprising: a filter function activation module, configured to activate a physical gas filtration function when there are people in the vehicle and the concentration of odor gas in the vehicle is greater than a first gas concentration and less than or equal to a second gas concentration, and the bacterial concentration is greater than a first bacterial concentration and less than or equal to a second bacterial concentration; and a first purification module, configured to determine the ozone release amount based on the size, temperature, and humidity of the in-vehicle space if the concentration of odor gas is greater than the second gas concentration, or the bacterial concentration is greater than the second bacterial concentration, and activate a gas catalytic decomposition function when ozone is released, so as to catalyze the reaction between odor gas and ozone, and decompose excess ozone into oxygen.

[0013] According to one aspect of this application, an electronic device is provided, comprising: a controller; and a memory for storing one or more programs, which, when executed by the controller, perform the purification method described above.

[0014] According to one aspect of this application, a computer-readable storage medium is also provided, on which computer-readable instructions are stored, which, when executed by a computer's processor, cause the computer to perform the above-described purification method.

[0015] According to one aspect of this application, a computer program product or computer program is also provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the above-described purification method.

[0016] This application establishes a dual-threshold judgment mechanism for odor gas and bacteria concentration when people are in the vehicle. This mechanism enables physical filtration to be activated only for mild pollution, while ozone release and catalytic decomposition are activated in tandem for moderate to severe pollution. Simultaneously, it introduces a mechanism to dynamically determine the ozone release amount based on the size, temperature, and humidity of the vehicle interior, and activates the gas catalytic decomposition function at the same time. This allows for the catalytic reaction of ozone with odor gases at room temperature to improve degradation efficiency, while also decomposing excess ozone into oxygen. This solves the technical problems of incomplete deodorization and sterilization, lack of precise control over ozone release, safety hazards, and limited applicability in related technologies. It achieves the beneficial effects of thorough purification, zero ozone residue, safe coexistence with humans, and adaptive operation in multiple scenarios.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] Figure 1 This is a schematic flowchart illustrating an exemplary embodiment of a method for purifying in-vehicle air.

[0020] Figure 2 Based on Figure 1 The exemplary embodiment shown illustrates a flowchart of another method for purifying in-vehicle air.

[0021] Figure 3 Based on Figure 1 or Figure 2 The exemplary embodiment shown illustrates a flowchart of another method for purifying in-vehicle air.

[0022] Figure 4 This is a schematic diagram illustrating the application scenario of the in-vehicle air purification method of this application.

[0023] Figure 5 This is a schematic diagram of the structure of an in-vehicle air purification device shown in an exemplary embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the structure of a computer system for an electronic device illustrated in an exemplary embodiment of this application. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0026] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0027] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0028] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Most existing methods for improving in-vehicle air quality are simplistic and mechanical, resulting in ineffective solutions. Furthermore, these technologies rely on preset air quality conditions and then execute corresponding air purification operations based on fixed settings, failing to adapt to different in-vehicle scenarios and lacking a precise purification system.

[0030] Therefore, one aspect of this application provides a method for purifying in-vehicle air, which combines different treatment methods to purify the air inside the vehicle and can determine an appropriate ozone release level based on the in-vehicle environment, so as to accurately purify the in-vehicle air while considering occupant safety. Please refer to the details below. Figure 1 , Figure 1 This is a schematic flowchart illustrating an exemplary embodiment of a method for purifying in-vehicle air according to this application. The purification method includes at least steps S110 to S120, which are described in detail below: S110: When there are people in the vehicle, if the concentration of odor gas in the vehicle is greater than the first gas concentration and less than or equal to the second gas concentration, and the bacterial concentration is greater than the first bacterial concentration and less than or equal to the second bacterial concentration, then the physical gas filtration function will be activated.

[0031] This embodiment uses infrared detectors, in-vehicle cameras, seat pressure sensors, and other equipment to detect whether there are drivers or passengers inside the vehicle.

[0032] Odor gases inside the vehicle include, but are not limited to, ammonia, hydrogen sulfide, formaldehyde, and TVOC (Total Volatile Organic Compounds). To improve the accuracy of odor gas concentration, this embodiment uses a metal oxide semiconductor gas sensor (such as the SGP30 gas sensor) and an electrochemical formaldehyde sensor (such as the Alphasense CO-AX for formaldehyde detection) to collect data collaboratively, and outputs the comprehensive odor gas concentration through a weighted fusion algorithm.

[0033] Bacterial concentration is collected using a bacterial concentration sensor (which indirectly reflects bacterial concentration by detecting bacterial metabolites).

[0034] The first gas concentration and the second gas concentration are two preset odor gas concentrations of different magnitudes. The first gas concentration is the lower limit threshold for mild air pollution inside the vehicle, and the second gas concentration corresponds to the lower limit threshold for moderate air pollution inside the vehicle. The first bacterial concentration and the second bacterial concentration are two preset bacterial concentrations of different magnitudes. The first bacterial concentration is the lower limit threshold for mild air pollution inside the vehicle, and the second bacterial concentration corresponds to the lower limit threshold for moderate air pollution inside the vehicle.

[0035] Physical filtration is a function of the vehicle's air conditioning system. It uses a physical filtration unit to filter the air inside the vehicle. This unit consists of a HEPA H13 filter (filtering PM2.5, pollen, and other particulate matter with a filtration efficiency of ≥99.97%) and a modified activated carbon filter (adsorbing odor molecules not decomposed by ozone with an adsorption capacity of ≥800mg / g). It is installed at the air outlet of the air conditioning duct to filter the air and ensure the cleanliness of the output air. In some embodiments, the filter of the physical filtration unit is also coated with silver ions for air sterilization.

[0036] If the concentration of odorous gases inside the vehicle is greater than the concentration of the first gas but less than or equal to the concentration of the second gas, and the bacterial concentration is greater than the concentration of the first bacteria but less than or equal to the concentration of the second bacteria, then the air inside the vehicle is considered to be slightly polluted. This step takes into account the respiratory health of the driver and passengers. In the case of slightly polluted air inside the vehicle, ozone sterilization is not introduced; only the physical filtration function of the gas is activated to physically adsorb odor molecules and inhalable particles in the odorous gases.

[0037] S120: If the concentration of odor gas is greater than the concentration of the second gas, or the concentration of bacteria is greater than the concentration of the second bacteria, the ozone release amount is determined based on the size, temperature and humidity of the vehicle interior. When ozone is released, the gas catalytic decomposition function is activated to catalyze the reaction between odor gas and ozone, and to decompose excess ozone into oxygen.

[0038] The size of the vehicle's interior space can be a parameter measured in real time by an ultrasonic ranging array (installed at the four corners of the vehicle's ceiling), or it can be a volume parameter pre-stored in the vehicle model database (i.e., a parameter preset before the vehicle leaves the factory).

[0039] Temperature and humidity are measured in real time by in-vehicle temperature and humidity sensors, respectively. This application found that temperature and humidity affect the ozone decay rate. In particular, under high temperature and high humidity conditions, the ozone half-life is shortened to 15 to 20 minutes, and the release amount needs to be appropriately increased to compensate for the decay. Therefore, this embodiment dynamically generates the ozone release amount based on the size of the in-vehicle space, the measured temperature and humidity, and overcomes the risk of insufficient or excessive purification caused by fixed dosage, so that the determined ozone release amount is more suitable for the real-time in-vehicle scenario.

[0040] The calculation process for ozone emissions is illustrated below: Calculate the temperature difference between the vehicle interior temperature and the preset temperature, and the humidity difference between the vehicle interior humidity and the preset humidity; determine the ozone correction amount based on the temperature and humidity differences; determine the ozone emissions based on the baseline ozone emissions and the ozone correction amount; the baseline ozone emissions are determined based on the size of the vehicle interior space.

[0041] For example, if the interior space of a car is 5m³, and the ozone production rate is 50mg / h per m³, the corresponding baseline ozone release is calculated to be 250mg / h. The baseline ozone release is then adjusted based on temperature and humidity parameters: using a temperature of 25℃ and a humidity of 60%RH as a base, for every 5℃ increase in temperature, the ozone release increases by 10%; for every 10% increase in humidity, the ozone production increases by 8%. If the interior temperature is 30℃ and the humidity is 60%RH, then the current baseline ozone release = 250 × (1 + 10%) mg / h = 275mg / h.

[0042] Simultaneously, it receives ozone concentration sensor data in real time. When the ozone concentration approaches 0.08 mg / m³ (80% of the safety threshold), it automatically reduces ozone production by 20% to ensure that the ozone concentration does not exceed the standard.

[0043] The gas catalytic decomposition function is a feature of the catalytic decomposition unit. The catalytic decomposition unit uses a MnO2-TiO2 composite catalyst (catalytic efficiency ≥95%) to form a honeycomb catalytic filter. The catalytic decomposition unit is installed in the air conditioning duct downstream of the ozone generator. The MnO2-TiO2 composite catalyst can decompose excess ozone (more than 0.05mg / m³) into oxygen at room temperature. At the same time, it can catalyze the reaction of TVOC and other organic matter with ozone, improve the pollutant removal efficiency, and avoid ozone residue and secondary pollution.

[0044] If the concentration of odorous gas is greater than the concentration of the second gas, or the concentration of bacteria is greater than the concentration of the second bacteria, it indicates that the air inside the vehicle is at least moderately polluted (i.e., moderate to heavy pollution). In order to ensure the health of the in-vehicle environment, ozone is released to purify the air inside the vehicle. To avoid excessive ozone from affecting the health of the occupants, the gas catalytic decomposition function is activated at the same time. This function can not only decompose excessive ozone, but also catalyze the reaction between TVOC and other organic matter and ozone, thereby improving the efficiency of pollutant removal and avoiding ozone residue and secondary pollution.

[0045] In some embodiments, during the activation of the gas catalytic decomposition function while releasing ozone, the ozone concentration inside the vehicle is monitored. If the ozone concentration inside the vehicle reaches a preset ozone concentration, the ozone release amount is updated to a preset first ozone release amount, and ozone is released at the preset first ozone release amount until the odor gas concentration is less than or equal to a first gas concentration, and the bacterial concentration is less than or equal to a first bacterial concentration. Here, the preset ozone concentration is a preset ozone concentration threshold, which can be understood as a preset threshold that triggers the adjustment of the ozone release amount. The preset first ozone release amount is a preset fixed parameter, and its magnitude is less than the ozone release amount determined based on the vehicle's interior space size, temperature, and humidity.

[0046] If the ozone concentration inside the vehicle reaches the preset ozone concentration, to prevent the ozone concentration from reaching the safety threshold (i.e., the ozone concentration threshold that affects the health of the occupants), the ozone release rate is reduced to the preset first ozone release rate. For example, if the safety threshold is 0.1 mg / m³ and the preset ozone concentration is 80% of the safety threshold, i.e., 0.08 mg / m³, to prevent the ozone concentration inside the vehicle from reaching 0.1 mg / m³, the ozone release rate is promptly reduced to 200 mg / h. This ensures that the ozone dosage required for air purification inside the vehicle is met while also ensuring that the ozone concentration does not exceed the safety threshold, thus protecting the health of the occupants. Ozone is continuously released at a rate of 200 mg / h until the odor gas concentration is ≤5 ppm (first gas concentration) and the bacterial concentration is ≤30 ppm (first bacterial concentration), meaning that the air inside the vehicle is no longer considered polluted. At this point, ozone production and release cease, and only the physical filtration unit remains operational (i.e., the physical gas filtration function remains continuously running) until the system shuts down or the pollution concentration (odor gas concentration and bacterial concentration) rises again. In another embodiment, if the ozone release rate is continuously 200 mg / h, and the driver or passenger is detected leaving the vehicle, the ozone release rate can be immediately increased from 200 mg / h (i.e., the preset first ozone release rate) to 300 mg / h, and an unmanned enhanced purification mode can be entered until the air inside the vehicle is no longer determined to be polluted.

[0047] This embodiment employs a dual-threshold judgment mechanism for odor gas and bacterial concentration when people are inside the vehicle. This allows for the activation of physical filtration only for mild pollution, while coordinating ozone release and catalytic decomposition for moderate to severe pollution. Simultaneously, it introduces a mechanism to dynamically determine ozone release based on the size, temperature, and humidity of the vehicle interior, and concurrently activates the gas catalytic decomposition function. This allows for the catalytic reaction of ozone with odor gases at room temperature to improve degradation efficiency, while also decomposing excess ozone into oxygen. This solves the technical problems of incomplete deodorization and sterilization, lack of precise control over ozone release, safety hazards, and limited applicability in related technologies. It achieves the beneficial effects of thorough purification, zero ozone residue, safe coexistence with humans, and adaptive operation in multiple scenarios.

[0048] In another exemplary embodiment of this application, a method for purifying the air inside the vehicle when no one is in the vehicle is described in detail. Please refer to [link / reference needed]. Figure 2 , Figure 2 Based on Figure 1 The exemplary embodiment shown illustrates a flowchart of another method for purifying in-vehicle air. This purification method, as in... Figure 1 Based on S110 to S120 shown, at least S210 is also included, which is described in detail below: S210: When the vehicle is turned off and no one is inside, if the concentration of odor gas is greater than the concentration of the third gas, or the concentration of bacteria is greater than the concentration of the third bacteria, ozone will be released based on the preset ozone release strategy.

[0049] The engine is off when the engine stops running, the main power supply is disconnected, and both the high-voltage and low-voltage power supply systems of the vehicle are out of drive mode.

[0050] The third gas concentration and the third bacterial concentration are both lower thresholds for severe air pollution inside the vehicle. Clearly, the first gas concentration < the second gas concentration < the third gas concentration, and the first bacterial concentration < the second bacterial concentration < the third bacterial concentration.

[0051] The preset ozone release strategy is the ozone release strategy corresponding to the situation when the vehicle is turned off and unoccupied, and the air inside the vehicle is heavily polluted. The preset ozone release strategy includes: an electronic supply strategy to guide the switching of the power supply; and an ozone release quantum strategy to guide the adjustment of the ozone release amount. The preset ozone release strategy also includes the trigger conditions and termination conditions for the corresponding functions.

[0052] If the concentration of odorous gas is greater than the concentration of the third gas, or the concentration of bacteria is greater than the concentration of the third bacteria, it indicates that the air inside the vehicle is heavily polluted. In the absence of anyone in the vehicle, occupant safety factors can be disregarded, and ozone can be released based on the preset ozone release strategy corresponding to heavy pollution.

[0053] For example, the backup power supply is activated to start the vehicle's air conditioning recirculation function, and ozone is released at a preset second ozone release rate and a preset release cycle until the odor gas concentration decreases to a first gas concentration and the bacterial concentration decreases to a first bacterial concentration. Once the odor gas concentration and bacterial concentration have decreased to the first gas concentration and the first bacterial concentration, ozone is released at a preset third ozone release rate until the release time reaches a preset release time. Wherein, the preset third ozone release rate (e.g., 150 mg / h) < the preset first ozone release rate (e.g., 200 mg / h) < the preset second ozone release rate (e.g., 500 mg / h).

[0054] The backup power supply refers to an independently configured rechargeable lithium-ion battery (2000mAh, 3.7V) in the vehicle's low-voltage system. It is physically isolated from the main battery and automatically switches between the two via an intelligent power management module. When the vehicle is off, the ignition switch is in the OFF position, and the main battery voltage is below 12.4V, the power management module detects the main power failure and confirms that the backup battery has a remaining charge of ≥20%. It then automatically closes the backup power relay to continuously power the ozone generator, air conditioning control unit, multi-parameter sensors, and catalytic decomposition unit. The backup power supply supports a low-power standby mode (static current <5mA) to maintain basic monitoring functions.

[0055] The air conditioning recirculation function is driven by the air conditioning control unit. Specifically, it controls the air mixing damper inside the vehicle to completely close the outside air inlet channel while opening the inside air inlet channel, and starts the blower to run, so that the air in the closed space of the cabin forms a closed loop flow. The recirculated airflow path covers the cavity under the seats, the ceiling vents, the gaps in the A / B pillar trim panels, and the inside of the air conditioning duct, ensuring that after ozone is released by the multi-directional release nozzles, the concentration uniformity of more than 95% of the entire cabin volume is achieved within 60 seconds.

[0056] The preset release cycle refers to the time rhythm of alternating ozone release and pause. For example, the ozone concentration in the vehicle is detected every 10 minutes. If the ozone concentration is >0.1mg / m³, ozone release is paused for 10 minutes and the catalytic decomposition unit is activated (i.e., the gas catalytic decomposition function is turned on).

[0057] Here's an example: When the vehicle is off and unoccupied, and the air inside is heavily polluted (odor concentration greater than the third gas concentration, or bacterial concentration greater than the third bacterial concentration), the backup battery is switched on (provided the backup battery charge is ≥20%) to supply power. Ozone is released at 500 mg / h (preset second ozone release rate) through multi-directional nozzles, while the air conditioning is turned on in recirculation mode to ensure sufficient ozone diffusion inside the vehicle until the odor concentration drops to 5 ppm (i.e., the first gas concentration) and the bacterial concentration drops to 30 ppm (i.e., the first bacterial concentration). Once the odor concentration has dropped to 5 ppm and the bacterial concentration to 30 ppm, ozone is released at 150 mg / h (i.e., the preset third ozone release rate) for 20 minutes (i.e., the preset release duration) before stopping.

[0058] In another exemplary embodiment, when the preset release time is reached (i.e., after releasing ozone continuously at 150 mg / h for 20 minutes as described above), the concentration of odor gas and the concentration of bacteria are monitored at a preset monitoring cycle, and when the concentration of odor gas is greater than the concentration of the third gas, or the concentration of bacteria is greater than the concentration of the third bacteria, ozone is released again based on the preset ozone release strategy.

[0059] For example, after continuously releasing ozone at 150 mg / h for 20 minutes, the concentration of odor gas and bacteria in the vehicle is monitored every 30 minutes (i.e., the preset monitoring cycle). If the odor gas concentration is greater than 30 ppm or the bacteria concentration is greater than 200 ppm, ozone is released again based on the preset ozone release strategy: the backup power is restarted to turn on the vehicle's air conditioning recirculation function, and ozone is released at the preset second ozone release amount and preset release cycle until the odor gas concentration is reduced to the first gas concentration and the bacteria concentration is reduced to the first bacteria concentration; when the odor gas concentration is reduced to the first gas concentration and the bacteria concentration is reduced to the first bacteria concentration, ozone is released at the preset third ozone release amount until the release time reaches the preset release time.

[0060] In another exemplary embodiment of this application, a method for purifying the air inside the vehicle when no one is in the vehicle is described in detail. Please refer to [link / reference needed]. Figure 3 , Figure 3 Based on Figure 1 or Figure 2 The exemplary embodiment shown illustrates a flowchart of another method for purifying in-vehicle air. This purification method, as in... Figure 1 Based on S110 to S120 shown, at least S310 to S320 are also included, which are described in detail below: S310: In response to a purification command triggered by the user, determine the personnel detection time and ozone decomposition time according to the purification time indicated in the purification command, and determine the target preset ozone release amount, target preset release duration and target preset decomposition duration according to the target purification mode indicated in the purification command.

[0061] A purification command is a command sent remotely by the user via a mobile device such as a smartphone to instruct the vehicle's interior air to be purified in a scheduled manner, that is, to perform the air purification operation at the designated purification time.

[0062] The personnel detection time is a detection point determined by a preset time offset before the purification time. This offset is preset by the system, for example, the offset is... The vehicle occupant detection function is activated 10 minutes before the purification process begins. In some embodiments, the purification equipment is powered by a backup power supply. Therefore, during the occupant detection, the backup power supply level is also checked to ensure it has reached the normal operating level. If the backup battery level is less than 20%, the backup power supply is stopped to protect the backup battery's health, and a low battery warning is sent to the user.

[0063] The ozone decomposition time is a preset time offset after the purification time. This offset is preset by the system; for example, an offset of +10 minutes means that the gas catalytic decomposition function will be activated 10 minutes after the purification time. The reason for placing the ozone decomposition time after the purification time is that ozone release has a lag during transmission within the air duct, and it also avoids the ozone being decomposed and released simultaneously at the start of purification, which would weaken the ozone sterilization ability due to the decrease in ozone content inside the vehicle.

[0064] The target purification mode is the preset purification mode selected by the user, including but not limited to: rapid deodorization mode (suitable for short-term odor elimination, such as smoke and food odors), deep sterilization mode (suitable for high biological load scenarios, such as mold growth after high temperature and humidity in summer), and energy-saving parking purification mode (suitable for low-power long-term maintenance scenarios). Each mode has its own preset ozone release rate, preset release time, and preset decomposition time. For example, the rapid deodorization mode corresponds to a preset ozone release rate of 400mg / h, a preset release time of 20 minutes, and a preset decomposition time of 10 minutes; the deep sterilization mode corresponds to a preset ozone release rate of 500mg / h, a preset release time of 30 minutes, and a preset decomposition time of 15 minutes; and the energy-saving parking purification mode corresponds to a preset ozone release rate of 150mg / h, a preset release time of 40 minutes, and a preset decomposition time of 8 minutes.

[0065] S320: If no one is detected in the vehicle during the personnel detection time, ozone will be released at the target preset ozone release amount until the release time reaches the target preset release time. At the ozone decomposition time, the gas catalytic decomposition function will be activated until the decomposition time reaches the target preset decomposition time.

[0066] For example, the target purification mode is a rapid deodorization mode, with a target preset ozone release rate of 400 mg / h, a target preset release time of 20 minutes, and a target preset decomposition time of 10 minutes. When no one is in the car, ozone is released at a rate of 400 mg / h during the purification period, continuing for 20 minutes. During the ozone decomposition period, the gas catalytic decomposition function is activated for 10 minutes. After purification is complete, a notification indicating completion is sent to the user.

[0067] In another exemplary embodiment of this application, the application scenarios of the above-mentioned purification methods are illustrated by way of example. Please refer to the following for details. Figure 4 , Figure 4 This is a schematic diagram illustrating an application scenario of the in-vehicle air purification method of this application. It includes a vehicle 100 and a server 200, which can be connected via wired or wireless communication. This application does not limit the connection method between them.

[0068] Server 200 can act as the execution entity for any of the above-mentioned purification methods to execute any of the aforementioned specific methods, as illustrated below: When there are people in the vehicle, if the concentration of odor gas inside the vehicle is greater than the first gas concentration and less than or equal to the second gas concentration, and the bacterial concentration is greater than the first bacterial concentration and less than or equal to the second bacterial concentration, the physical gas filtration function will be activated. If the concentration of odor gas is greater than the second gas concentration, or the bacterial concentration is greater than the second bacterial concentration, the ozone release amount will be determined based on the size, temperature and humidity of the vehicle interior. In the event of ozone release, the gas catalytic decomposition function will be activated to catalyze the reaction between odor gas and ozone, and to decompose excess ozone into oxygen.

[0069] Server 200 can be a physical server independent of vehicle 100, or it can be like... Figure 4 The server 200 shown, located within vehicle 100, can be a server cluster or distributed system composed of multiple physical servers. These servers can form a blockchain, with each server acting as a node on the blockchain. Server 200 can also be a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms. This document does not impose any restrictions on this.

[0070] Another aspect of this application provides an in-vehicle air purification device, such as... Figure 5 As shown, Figure 5This is a schematic diagram illustrating the structure of an in-vehicle air purification device according to an exemplary embodiment of this application. The purification device 500 includes: The filter function activation module 510 is used to activate the physical gas filtration function when there are people in the vehicle and the concentration of odor gas in the vehicle is greater than the first gas concentration and less than or equal to the second gas concentration, and the bacterial concentration is greater than the first bacterial concentration and less than or equal to the second bacterial concentration.

[0071] The first purification module 530 is used to determine the ozone release amount based on the size, temperature and humidity of the vehicle interior if the concentration of odor gas is greater than the concentration of the second gas or the concentration of bacteria is greater than the concentration of the second bacteria. In the event of ozone release, the gas catalytic decomposition function is activated to catalyze the reaction between odor gas and ozone, and to decompose excess ozone into oxygen.

[0072] In another exemplary embodiment, the first purification module 530 includes: The calculation unit is used to calculate the temperature difference between the vehicle interior temperature and the preset temperature, as well as the humidity difference between the vehicle interior humidity and the preset humidity.

[0073] The correction unit is used to determine the ozone correction amount based on the temperature difference and humidity difference.

[0074] The ozone emission determination unit is used to determine the ozone emission based on the baseline ozone emission and the ozone correction; the baseline ozone emission is determined based on the size of the vehicle interior space.

[0075] In another exemplary embodiment, the first purification module 530 includes: The first purification unit is used to update the ozone release amount to a preset first ozone release amount if the ozone concentration inside the vehicle reaches a preset ozone concentration, and release ozone at the preset first ozone release amount until the odor gas concentration is less than or equal to the first gas concentration and the bacterial concentration is less than or equal to the first bacterial concentration.

[0076] In another exemplary embodiment, the purification device 500 further includes: The second purification module is used to release ozone based on a preset ozone release strategy when the vehicle is turned off and no one is inside, if the concentration of odor gas is greater than the concentration of the third gas, or the concentration of bacteria is greater than the concentration of the third bacteria.

[0077] In another exemplary embodiment, the second purification module includes: The second purification unit is used to activate the backup power supply to turn on the vehicle's air conditioning recirculation function, and release ozone at a preset second ozone release amount and a preset release cycle until the odor gas concentration is reduced to the first gas concentration and the bacterial concentration is reduced to the first bacterial concentration.

[0078] The third purification unit is used to release ozone at a preset third ozone release amount when the odor gas concentration is reduced to the first gas concentration and the bacterial concentration is reduced to the first bacterial concentration, until the release time reaches the preset release time.

[0079] In another exemplary embodiment, the purification device 500 further includes: The re-purification module is used to monitor the concentration of odor gas and bacteria at a preset monitoring cycle after the preset release time has been reached, and to release ozone again based on the preset ozone release strategy if the concentration of odor gas is greater than the concentration of the third gas or the concentration of bacteria is greater than the concentration of the third bacteria.

[0080] In another exemplary embodiment, the purification device 500 further includes: The purification response module is used to respond to purification commands triggered by users. It determines the personnel detection time and ozone decomposition time according to the purification time indicated in the purification command, and determines the target preset ozone release amount, target preset release duration and target preset decomposition duration according to the target purification mode indicated in the purification command.

[0081] The third purification module is used to release ozone at a target preset ozone release amount if no one is detected in the vehicle during the personnel detection time, until the release time reaches the target preset release time, and to activate the gas catalytic decomposition function when ozone decomposes, until the decomposition time reaches the target preset decomposition time.

[0082] This purification device employs a dual-threshold judgment mechanism for odor gas and bacterial concentration when people are present in the vehicle. This allows for the activation of physical filtration only for mild pollution, while co-activating ozone release and catalytic decomposition for moderate to severe pollution. Simultaneously, it introduces a mechanism to dynamically determine the ozone release amount based on the size, temperature, and humidity of the vehicle interior, and concurrently activates the gas catalytic decomposition function. This allows for the catalytic reaction of ozone with odor gases at room temperature to improve degradation efficiency, while also decomposing excess ozone into oxygen. This solves the technical problems of incomplete deodorization and sterilization, lack of precise control over ozone release, safety hazards, and limited applicability in related technologies. It achieves the beneficial effects of thorough purification, zero ozone residue, safe coexistence with humans, and adaptive operation in multiple scenarios.

[0083] It should be noted that the purification device provided in the above embodiments and the purification method provided in the foregoing embodiments belong to the same concept. The specific way in which each module and unit performs its operation has been described in detail in the method embodiments, and will not be repeated here.

[0084] Another aspect of this application provides an electronic device, including: a controller; and a memory for storing one or more programs, which, when executed by the controller, perform the purification method described above.

[0085] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a computer system for an electronic device according to an exemplary embodiment of this application, illustrating a schematic diagram of the structure of a computer system suitable for implementing the embodiments of this application.

[0086] It should be noted that, Figure 6 The computer system 600 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0087] like Figure 6 As shown, the computer system 600 includes a Central Processing Unit (CPU) 601, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 602 or programs loaded from storage portion 608 into Random Access Memory (RAM) 603. The RAM 603 also stores various programs and data required for system operation. The CPU 601, ROM 602, and RAM 603 are interconnected via a bus 604. An Input / Output (I / O) interface 605 is also connected to the bus 604.

[0088] The following components are connected to I / O interface 605: an input section 606 including a keyboard, mouse, etc.; an output section 607 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 608 including a hard disk, etc.; and a communication section 609 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to I / O interface 605 as needed. A removable medium 611, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 610 as needed so that computer programs read from it can be installed into storage section 608 as needed.

[0089] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 609, and / or installed from removable medium 611. When the computer program is executed by central processing unit (CPU) 601, it performs various functions defined in the system of this application.

[0090] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0091] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0092] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0093] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the aforementioned cleanup method. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into the electronic device.

[0094] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the purification methods provided in the various embodiments described above.

[0095] According to one aspect of the embodiments of this application, a computer system is also provided, including a Central Processing Unit (CPU), which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from storage into random access memory (RAM), such as performing the methods described above. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0096] The following components are connected to the I / O interface: input components including keyboards, mice, etc.; output components including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and speakers; storage components including hard drives; and communication components including network interface cards such as LAN (Local Area Network) cards and modems. The communication components perform communication processing via networks such as the Internet. Drives are also connected to the I / O interface as needed. Removable media, such as disks, optical discs, magneto-optical discs, semiconductor memories, etc., are installed on the drive as needed so that computer programs read from them can be installed into the storage components as required.

[0097] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A method of purifying air in a vehicle, characterized by, The purification method comprises: In the case that there is a person in the vehicle, if the concentration of the odor gas in the vehicle is greater than the first gas concentration and less than or equal to the second gas concentration, and the concentration of the bacteria is greater than the first bacteria concentration and less than or equal to the second bacteria concentration, the physical filtration function of the gas is started; If the concentration of the odor gas is greater than the second gas concentration, or the concentration of the bacteria is greater than the second bacteria concentration, the amount of ozone to be released is determined according to the size, temperature and humidity of the space in the vehicle, and the catalytic decomposition function of the gas is started in the case that ozone is released, so as to catalyze the reaction of the odor gas and ozone, and make the excess ozone be decomposed into oxygen.

2. The purification method according to claim 1, wherein, Determining the amount of ozone to be released according to the size, temperature and humidity of the space in the vehicle comprises: calculating the temperature difference between the temperature in the vehicle and the preset temperature, and the humidity difference between the humidity in the vehicle and the preset humidity; determining the correction amount of ozone according to the temperature difference and the humidity difference; determining the amount of ozone to be released according to the basic release amount of ozone and the correction amount of ozone; wherein the basic release amount of ozone is determined according to the size of the space in the vehicle.

3. The purification method of claim 1, wherein, Starting the catalytic decomposition function of the gas in the case that ozone is released comprises: If the concentration of ozone in the vehicle reaches the preset ozone concentration, the amount of ozone to be released is updated to a preset first ozone release amount, and ozone is released at the preset first ozone release amount until the concentration of the odor gas is less than or equal to the first gas concentration, and the concentration of the bacteria is less than or equal to the first bacteria concentration.

4. The purification method according to claim 1, wherein, The purification method further comprises: In the case that the vehicle is in the off state and there is no person in the vehicle, if the concentration of the odor gas is greater than the third gas concentration, or the concentration of the bacteria is greater than the third bacteria concentration, ozone is released based on a preset ozone release strategy.

5. The purification method of claim 4, wherein, Releasing ozone based on a preset ozone release strategy comprises: starting the standby power supply to start the internal circulation function of the vehicle air conditioner, and releasing ozone at a preset second ozone release amount and a preset release period until the concentration of the odor gas is reduced to the first gas concentration, and the concentration of the bacteria is reduced to the first bacteria concentration; In the case that the concentration of the odor gas is reduced to the first gas concentration, and the concentration of the bacteria is reduced to the first bacteria concentration, ozone is released at a preset third ozone release amount until the release time reaches a preset release time.

6. The purification method according to claim 5, wherein, The purification method further comprises: In the case that the preset release time is reached, the concentration of the odor gas and the concentration of the bacteria are monitored at a preset monitoring period, and in the case that the concentration of the odor gas is greater than the third gas concentration, or the concentration of the bacteria is greater than the third bacteria concentration, ozone is released again based on the preset ozone release strategy.

7. The purification method according to any one of claims 1 to 6, characterized in that, The purification method further comprises: In response to the purification instruction triggered by the user, the personnel detection time and the ozone decomposition time are determined according to the purification time indicated in the purification instruction, and the target preset ozone release amount, the target preset release time and the target preset decomposition time are determined according to the target purification mode indicated in the purification instruction; If no one is detected in the vehicle at the personnel detection moment, ozone is released at the target preset ozone release amount until the release duration reaches the target preset release duration, and the gas catalytic decomposition function is started at the ozone decomposition moment until the decomposition duration reaches the target preset decomposition duration.

8. A vehicle interior air purification device, characterized in that, The purification device comprises: a filtering function starting module, configured to start a gas physical filtering function if the odor gas concentration in the vehicle is greater than a first gas concentration and less than or equal to a second gas concentration, and the bacteria concentration is greater than a first bacteria concentration and less than or equal to a second bacteria concentration when there is a person in the vehicle; a first purification module, configured to determine an ozone release amount according to the size, temperature and humidity of the space in the vehicle if the odor gas concentration is greater than the second gas concentration or the bacteria concentration is greater than the second bacteria concentration, and to start a gas catalytic decomposition function to catalyze the reaction of odor gas and ozone and decompose excess ozone into oxygen when ozone is released.

9. An electronic device, comprising: comprise: a controller; a memory for storing one or more programs, which, when executed by the controller, cause the controller to implement the purification method of any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, a computer readable instruction stored thereon, which, when executed by a processor of a computer, causes the computer to perform the purification method of any one of claims 1 to 7.

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