In-vehicle self-adaptive sterilization method, system and equipment and storage medium
By combining the coordinated control of a nano-electrostatic field array and a low-temperature plasma device with air quality sensors and predictive models, the problems of low efficiency and high maintenance costs in the purification of viruses and bacteria in traditional vehicle air purification systems have been solved, achieving efficient and energy-saving in-vehicle air purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ELECTRIC VEHICLE
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing in-vehicle air purification systems are inefficient at dealing with submicron particles such as viruses and bacteria, and suffer from problems such as easy filter clogging, high maintenance costs, and inability to respond to changes in air quality in real time.
By employing a nano-electrostatic field array and a low-temperature plasma device, combined with an air quality sensor and a dynamic prediction model, electrostatic adsorption and low-temperature plasma sterilization are achieved. The electric field strength and plasma frequency are adaptively adjusted to dynamically monitor air quality and provide differentiated responses.
It achieves active capture and precise inactivation of pathogens inside the vehicle, reduces maintenance costs, extends the service life of the purification module, and achieves an optimal balance between energy consumption and purification efficiency.
Smart Images
Figure CN122058726A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle-mounted sterilization technology, and in particular to an in-vehicle adaptive sterilization method, system, device and storage medium. Background Technology
[0002] As cars have become an indispensable mobile space in people's lives, the impact of in-vehicle air quality on the health of drivers and passengers has received increasing attention. Especially during flu season or in the context of frequent public health emergencies, the risk of transmission of viruses, bacteria, and fine particulate matter in in-vehicle air has become a focus of public concern.
[0003] Currently, traditional in-vehicle air purification systems mainly rely on mechanical filtration using air conditioning filters or screens. Their working principle is passive adsorption, meaning they intercept airborne particulate matter through the filter material. However, this technology has significant limitations when dealing with submicron-sized particles (such as viruses and bacteria). Virus particles are typically extremely small, making them difficult for traditional filters to effectively intercept. Furthermore, these filters are prone to clogging and secondary pollution during use, resulting in a significant decrease in purification effectiveness over time.
[0004] In addition, some high-end models have introduced electrostatic adsorption or ultraviolet disinfection in an attempt to improve purification efficiency, but these technologies still have many shortcomings. For example, although electrostatic filters can improve adsorption efficiency, their charge is easily decayed, requiring frequent filter replacements, which increases maintenance costs and wastes resources; ultraviolet disinfection technology is limited by the angle and intensity of irradiation, making it difficult to cover the complex space inside the vehicle, and also poses safety hazards.
[0005] Therefore, those skilled in the art urgently need an in-vehicle air purification technology that can actively capture and efficiently inactivate viruses and bacteria in the air inside the vehicle, and that is adaptive and has low maintenance costs. Summary of the Invention
[0006] (a) Technical problems to be solved
[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an in-vehicle adaptive sterilization method, system, device and storage medium, which solves the technical problems of low passive filtration efficiency, frequent replacement of consumables and inability to respond to changes in air quality in real time in the prior art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:
[0010] In a first aspect, embodiments of the present invention provide an adaptive sterilization method for vehicle interiors, comprising:
[0011] In response to the vehicle start signal, the system acquires the initial pollutant concentration data in the air inside the vehicle. When the initial pollutant concentration exceeds the preset concentration threshold, the system controls the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle at the corresponding step power.
[0012] During vehicle operation, when the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold, the intake fan is activated to inject outside air into the vehicle after electrostatic adsorption sterilization until the oxygen content of the air inside the vehicle is restored to the target oxygen content range.
[0013] When the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold, the low-temperature plasma generator is triggered to generate high-energy particles to inactivate pathogens adsorbed on the plates in situ, and the adsorption plates are cleaned by pulse discharge.
[0014] Based on real-time monitoring of pollutant concentration data in the vehicle interior, and combined with a preset air quality dynamic change prediction model, the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation are adaptively adjusted to optimize sterilization energy consumption and air purification efficiency.
[0015] Optionally, in response to a vehicle start signal, initial pollutant concentration data in the vehicle interior air is acquired. If the initial pollutant concentration exceeds a preset concentration threshold, the configured nano-electrostatic field array is controlled to perform electrostatic adsorption sterilization of the vehicle interior air at a corresponding stepped power, including:
[0016] In response to the vehicle start signal, the initial pollutant concentration data in the air inside the vehicle is collected by an air quality sensor installed inside the vehicle;
[0017] The initial pollutant concentration is compared with the preset concentration step threshold, and the corresponding duty cycle control command is generated based on the concentration step threshold range in which the initial pollutant concentration is located.
[0018] Based on duty cycle control commands, the nano-electrostatic field array is controlled to execute the corresponding level of output response in order to perform adaptive energy-saving electrostatic adsorption sterilization of the air inside the vehicle.
[0019] Among them, the nano-electrostatic field array is an ionized electric field structure composed of conductive fibers and opposing adsorption plates. The electrode gap of the adsorption plates is at the nanometer level and is deployed in the ventilation duct and the in-vehicle circulation duct of the vehicle air conditioning system.
[0020] Optionally, during vehicle operation, when the oxygen content inside the vehicle falls below a preset oxygen threshold, the intake fan is activated to inject outside air into the vehicle after electrostatic adsorption sterilization until the oxygen content inside the vehicle returns to the target oxygen content range, including:
[0021] The oxygen concentration sensor installed inside the vehicle monitors the oxygen content of the air in real time.
[0022] The oxygen content data is compared with the preset oxygen content threshold. When the detected oxygen content is lower than the oxygen content threshold, an intake control command is generated.
[0023] According to the intake control command, the intake fan is started and the intake damper is switched to the external circulation mode, so that the outside air is introduced into the nano electrostatic field array for electrostatic adsorption sterilization treatment. The sterilized outside air is then injected into the vehicle through the ventilation duct.
[0024] During the process of injecting outside air, the oxygen content of the air inside the vehicle is continuously monitored. When the oxygen content rises back to the preset target oxygen content range, the intake fan is turned off and the intake damper is switched back to the internal circulation mode.
[0025] Optionally, after monitoring the oxygen content data of the air inside the vehicle in real time using an oxygen concentration sensor installed inside the vehicle, the method further includes:
[0026] By installing a temperature sensor outside the vehicle, the ambient temperature data outside the vehicle can be monitored in real time.
[0027] When the ambient temperature is lower than the preset human comfort temperature threshold and the oxygen content in the vehicle is lower than the oxygen content threshold, an internal circulation oxygen generation control command is generated.
[0028] According to the internal circulation oxygen generation control command, the vehicle oxygen generator is started and the vehicle is controlled to maintain or switch to internal circulation mode. The oxygen generated by the vehicle oxygen generator is mixed with the original air in the vehicle and then introduced into the nano electrostatic field array for electrostatic adsorption sterilization treatment.
[0029] During the process of injecting oxygen into the recirculating air through the vehicle's oxygen generator, the oxygen content of the air inside the vehicle is continuously monitored. When the oxygen content rises back to the preset target oxygen content range, the vehicle's oxygen generator is shut down.
[0030] Optionally, when the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold, a low-temperature plasma generator is triggered to produce high-energy particles to inactivate pathogens adsorbed on the plates in situ, and the adsorption plates are cleaned by pulse discharge, including:
[0031] The operating current of the nano-electrostatic field array is monitored in real time by a current detection unit set on the adsorption plate.
[0032] When the operating current is lower than the preset current threshold, it is determined that the adsorption amount of the adsorption plate has reached the saturation threshold, and an electrode regeneration trigger command is generated.
[0033] In response to the electrode regeneration trigger command, the low-temperature plasma generator integrated with the adsorption electrode is activated to generate high-energy particles on the surface of the adsorption electrode to inactivate pathogens adsorbed on the electrode in situ.
[0034] After the low-temperature plasma generator is activated and runs for the preset disinfection time, the low-temperature plasma generator is turned off, and a high-voltage pulse signal is applied to the electrodes of the adsorption plate to peel off the inactivated pathogen residues from the surface of the adsorption plate.
[0035] Optionally, based on real-time monitored pollutant concentration data inside the vehicle and combined with a preset air quality dynamic change prediction model, the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation are adaptively adjusted to optimize sterilization energy consumption and air purification efficiency, including:
[0036] Acquire pollutant concentration data, including particulate matter concentration, total microbial count, and volatile organic compound concentration, collected by in-vehicle air quality sensors;
[0037] The pollutant concentration data and the corresponding vehicle operating status data are input into the preset air quality dynamic change prediction model, and the model outputs the predicted value of air quality change trend within a preset time period.
[0038] Based on the predicted air quality change trend and combined with the current pollutant concentration data, the current target cleanliness level is dynamically calculated;
[0039] Based on the target cleanliness level, the electric field strength of the nano-electrostatic field is adaptively adjusted, and the generation frequency of the low-temperature plasma is simultaneously matched and adjusted.
[0040] The adjusted electric field strength and frequency combination is verified through a preset energy consumption and efficiency optimization algorithm until the optimal combination of working parameters that meets the target cleanliness level and has the lowest ratio of sterilization energy consumption to air purification efficiency is found.
[0041] Secondly, embodiments of the present invention provide an in-vehicle adaptive sterilization system, including...
[0042] Nanoscale electrostatic field array;
[0043] Low-temperature plasma generator;
[0044] The controller, connected to a nano-electrostatic field array and a low-temperature plasma generator, is used to execute the aforementioned in-vehicle adaptive sterilization method.
[0045] Optionally, the controller includes:
[0046] The initial sterilization module is used to respond to the vehicle start signal, acquire the initial pollutant concentration data in the air inside the vehicle, and when the initial pollutant concentration exceeds the preset concentration step threshold, control the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle with the corresponding step power.
[0047] The external air supply sterilization module is used to inject outside air into the vehicle after electrostatic adsorption sterilization when the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold during vehicle operation, until the oxygen content of the air inside the vehicle is restored to the target oxygen content range.
[0048] The in-situ regeneration module for adsorption plates is used to trigger a low-temperature plasma generator to generate high-energy particles when the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold. This particles in turn inactivate pathogens adsorbed on the plates in situ and clean the adsorption plates through pulse discharge.
[0049] The adaptive sterilization control module is used to adaptively adjust the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation based on real-time monitoring of pollutant concentration data in the vehicle interior, combined with a preset air quality dynamic change prediction model, so as to achieve optimal sterilization energy consumption and air purification efficiency.
[0050] Thirdly, embodiments of the present invention provide an electronic device, comprising:
[0051] At least one processor;
[0052] and memory that is communicatively connected to at least one processor;
[0053] The memory stores instructions that can be executed by at least one processor, which enables the at least one processor to perform the aforementioned adaptive sterilization method for vehicle interiors.
[0054] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the aforementioned in-vehicle adaptive sterilization method.
[0055] (III) Beneficial Effects
[0056] The beneficial effects of this invention are as follows: The in-vehicle adaptive sterilization method of this invention, by employing a multi-mode collaborative control strategy, executes differentiated response actions during vehicle startup, driving, and when the purification module load reaches a critical state. It also incorporates a dynamic air quality prediction model for real-time regulation. Compared to existing technologies, it can actively capture and precisely inactivate pathogens inside the vehicle, overcoming the technical bottleneck of traditional filters that can only passively intercept and are unable to capture tiny virus particles. Specifically, this invention, through an initial pollutant concentration triggering mechanism, can adaptively construct an electrostatic field with appropriate power at the moment of vehicle startup, rapidly reducing the initial pollution load inside the vehicle while saving energy. Through closed-loop control of oxygen content, it ensures the freshness of the air inside the vehicle while ensuring that the introduced outside air is sterilized, avoiding secondary pollution caused by the introduction of fresh air. By triggering low-temperature plasma in situ when the adsorption plate reaches the saturation threshold, it not only achieves efficient inactivation of enriched pathogens but also completes the self-cleaning of the plate through pulse discharge, significantly extending the maintenance cycle of core components.
[0057] Furthermore, this invention introduces an air quality dynamic change prediction model, which can predict pollution trends based on real-time monitoring data and adaptively adjust the electric field strength and plasma generation frequency to control energy consumption at the optimal level while ensuring sterilization effect. Attached Figure Description
[0058] Figure 1 This is a schematic flowchart of an in-vehicle adaptive sterilization method according to an embodiment of the present invention;
[0059] Figure 2 This is a partial structural schematic diagram of an in-vehicle adaptive sterilization system provided in an embodiment of the present invention.
[0060] [Explanation of Labels in the Attached Image]
[0061] 1: Nanoscale electrostatic field array;
[0062] 2: Low-temperature plasma generator. Detailed Implementation
[0063] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0064] refer to Figure 1As shown in the embodiment of the present invention, an adaptive sterilization method for in-vehicle systems includes: responding to a vehicle start signal, acquiring initial pollutant concentration data in the in-vehicle air; when the initial pollutant concentration exceeds a preset concentration threshold, controlling a configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the in-vehicle air at a corresponding stepped power; during vehicle operation, when the oxygen content of the in-vehicle air is lower than a preset oxygen content threshold, starting the intake fan to inject outside air into the in-vehicle after electrostatic adsorption sterilization until the oxygen content of the in-vehicle air recovers to the target oxygen content range; when the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches a saturation threshold, triggering a low-temperature plasma generator to generate high-energy particles to inactivate pathogens adsorbed on the plates in situ, and cleaning the adsorption plates through pulse discharge; based on real-time monitored pollutant concentration data in the in-vehicle air and combined with a preset air quality dynamic change prediction model, adaptively adjusting the electric field strength of the nano-electrostatic field and the generation frequency of the low-temperature plasma to achieve optimal sterilization energy consumption and air purification efficiency.
[0065] This embodiment employs a multi-mode collaborative control strategy, executing differentiated response actions during vehicle startup, driving, and when the purification module load reaches a critical state. It also incorporates a dynamic air quality prediction model for real-time regulation. Compared to existing technologies, this allows for the active capture and precise inactivation of pathogens within the vehicle, overcoming the technical bottleneck of traditional filters that can only passively intercept and are unable to capture tiny virus particles. Specifically, this embodiment utilizes an initial pollutant concentration triggering mechanism to adaptively construct an electrostatic field with appropriate power at the moment of vehicle startup, rapidly reducing the initial pollution load inside the vehicle while saving energy. Through closed-loop oxygen content control, it ensures the freshness of the air inside the vehicle while ensuring that the introduced outside air is sterilized, avoiding secondary pollution caused by fresh air introduction. By triggering low-temperature plasma in situ when the adsorption plates reach the saturation threshold, it not only achieves efficient inactivation of enriched pathogens but also completes the self-cleaning of the plates through pulse discharge, significantly extending the maintenance cycle of core components. Furthermore, this embodiment incorporates an air quality dynamic change prediction model, which can predict pollution trends based on real-time monitoring data and adaptively adjust the electric field strength and plasma generation frequency, controlling energy consumption to an optimal level while ensuring sterilization effectiveness.
[0066] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.
[0067] Specifically, refer to Figure 1 As shown, the in-vehicle adaptive sterilization method proposed in this embodiment includes the following steps S100 to S400:
[0068] S100: In response to the vehicle start signal, acquire the initial pollutant concentration data in the air inside the vehicle. When the initial pollutant concentration exceeds the preset concentration step threshold, control the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle with the corresponding step power.
[0069] In this embodiment, by employing a pollution load prediction mechanism and graded power drive technology, efficient and energy-saving air purification is achieved at the moment of vehicle startup. This embodiment automatically wakes up and executes a differentiated response strategy at the moment the vehicle is unlocked or started. This strategy abandons the traditional fixed-power operation mode and adopts a triggering and energy efficiency optimization mechanism based on the initial pollutant concentration to ensure that the in-vehicle air quality is restored to a healthy standard with optimal energy consumption in the shortest possible time. Specifically, step S100 may include the following sub-steps S110 to S130:
[0070] S110: In response to the vehicle start signal, the initial pollutant concentration data in the air inside the vehicle is collected by an air quality sensor installed inside the vehicle.
[0071] Furthermore, in response to vehicle start signals, including but not limited to ignition start, remote control unlocking, door unlocking, and in-vehicle passenger sensing signals, and after self-testing the circuit of the nano-electrostatic field array and the air quality sensor, the initial pollutant concentration data in the in-vehicle air is collected in real time through a multi-channel air quality sensor installed in the vehicle.
[0072] S120. Compare the initial pollutant concentration with the preset concentration step threshold, and generate the corresponding duty cycle control command based on the concentration step threshold range in which the initial pollutant concentration is located.
[0073] S130, based on duty cycle control commands, controls the nano-electrostatic field array to execute the corresponding level of output response, so as to perform adaptive energy-saving electrostatic adsorption sterilization of the air inside the vehicle.
[0074] For example, the initial pollutant concentration data is compared with multiple preset concentration thresholds, and different levels of response are executed: (1) Energy-saving maintenance mode: the initial pollutant concentration is lower than the first concentration threshold (e.g., PM2.5 < 25 μg / m³). 3 (2) Conventional purification mode: The initial pollutant concentration is between the first concentration threshold and the second concentration threshold (e.g., 25 μg / m³). 3 <PM2.5<75μg / m 3At this time, the nano-electrostatic field array operates with a duty cycle of 30%-80% pulse power supply, so that the power supply module outputs a stable medium voltage, and generates a gentle corona discharge at the tip of the conductive fiber, so as to efficiently adsorb and capture larger particles and bacterial carriers by the electrostatic field; (3) Rapid purification mode: the initial pollutant concentration exceeds the second concentration threshold (such as PM2.5>65μg / m 3 At this time, the nano-electrostatic field array operates with pulse power supply at a duty cycle of 80%-100%, which increases the array's operating voltage to the maximum allowable value within milliseconds, thereby constructing an extremely high field strength nano-scale electrostatic field in the ionized electric field structure for efficient electrostatic adsorption.
[0075] It is worth mentioning that the nano-electrostatic field array is an ionized electric field structure composed of conductive fibers and opposing adsorption plates. The electrode gap of the adsorption plates is at the nanometer level, 50nm-500nm, and it is deployed in the ventilation duct and the in-vehicle circulation duct of the vehicle's air conditioning system.
[0076] S200: When the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold during vehicle operation, the intake fan is activated to inject outside air into the vehicle after electrostatic adsorption sterilization until the oxygen content of the air inside the vehicle is restored to the target oxygen content range.
[0077] In this embodiment, an oxygen content closed-loop control mechanism is adopted for air purification during vehicle operation. This ensures the freshness of the air inside the vehicle while guaranteeing that the introduced outside air is sterilized, thus avoiding secondary pollution caused by the introduction of fresh air. Specifically, step S200 may include the following sub-steps S210 to S240:
[0078] S210: The oxygen concentration sensor installed inside the vehicle monitors the oxygen content of the air in real time.
[0079] S220: Compare the oxygen content data with the preset oxygen content threshold. When the detected oxygen content is lower than the oxygen content threshold, generate an intake control command.
[0080] Furthermore, the collected real-time oxygen content data is compared with a preset oxygen content threshold (e.g., 18.5%, slightly lower than the normal atmospheric oxygen concentration of 21%). If the monitored oxygen content remains below this threshold for an extended period beyond the set delay time, it is determined that the air inside the vehicle is oxygen-deficient, and an intake control command is automatically generated.
[0081] S230: According to the intake control command, start the intake fan and switch the intake damper to the external circulation mode to introduce outside air into the nano-electrostatic field array for electrostatic adsorption sterilization treatment. The sterilized outside air is then injected into the vehicle through the ventilation duct.
[0082] S240: During the process of injecting outside air, continuously monitor the oxygen content of the air inside the vehicle. When the oxygen content rises back to the preset target oxygen content range, control the intake fan to turn off and switch the intake damper back to the internal circulation mode.
[0083] Furthermore, during the continuous injection of fresh air from outside, the oxygen content inside the vehicle is monitored in a closed loop. When the oxygen concentration sensor detects that the oxygen content has rebounded and stabilized within the preset target oxygen content range (e.g., 20.5% to 21.5%), a shutdown command is issued, gradually reducing the fan speed until it is turned off. At the same time, the damper actuator is reset, switching the air intake damper from external circulation mode back to internal circulation mode to maintain a stable interior temperature and reduce the air conditioning load.
[0084] In another embodiment, if a large amount of cold fresh air is directly introduced when the outside temperature is too low, the interior temperature will drop sharply, severely affecting human comfort and increasing energy consumption of the air conditioning or engine thermal management. Therefore, after real-time monitoring of oxygen content in step S210, the following intelligent compensation steps G100 to G400 can also be performed:
[0085] The G100 uses an external temperature sensor to monitor the ambient temperature outside the vehicle in real time.
[0086] G200: When the ambient temperature is lower than the preset human comfort temperature threshold and the oxygen content in the vehicle is lower than the oxygen content threshold, an internal circulation oxygen generation control command is generated.
[0087] Furthermore, the collected ambient temperature data is compared with a preset human comfort temperature threshold (e.g., set to 5°C, where introducing cold air below this temperature would cause significant discomfort). If the ambient temperature data is lower than the preset human comfort temperature threshold (5°C), and the oxygen content in the vehicle is lower than the hypoxia threshold, it is determined that it is not advisable to turn on the external air circulation to introduce cold air, and an internal air circulation oxygen generation control command is generated.
[0088] According to the internal circulation oxygen generation control command, the G300 starts the on-board oxygen generator and controls the vehicle to maintain or switch to internal circulation mode. The oxygen generated by the on-board oxygen generator is mixed with the original air in the vehicle and then introduced into the nano electrostatic field array for electrostatic adsorption sterilization treatment.
[0089] Furthermore, the air conditioning damper actuator is controlled to forcibly maintain or switch to recirculation mode, cutting off the direct entry of outside cold air. Then, the high-concentration oxygen generated by the onboard oxygen generator is injected into the air conditioning duct through micro-channels, thoroughly mixing with the existing recirculated air inside the vehicle to form oxygen-rich air. Finally, the mixed gas is introduced into a nano-electrostatic field array for electrostatic adsorption sterilization, killing any bacteria that may be present in the recirculation system. In this implementation, the sterilized, clean, oxygen-rich air is evenly injected into the vehicle through ventilation ducts, increasing the oxygen content inside the vehicle without lowering the temperature.
[0090] G400 continuously monitors the oxygen content of the air inside the vehicle during the process of injecting oxygen into the recirculating air through the onboard oxygen generator. When the oxygen content rises back to the preset target oxygen content range, the onboard oxygen generator is turned off.
[0091] S300 When the cumulative adsorption amount on the adsorption plate of the nano-electrostatic field array reaches the saturation threshold, the low-temperature plasma generator is triggered to generate high-energy particles to inactivate pathogens adsorbed on the plate in situ, and the adsorption plate is cleaned by pulse discharge.
[0092] In this embodiment, after accurately determining the saturation threshold through current changes, high-voltage pulse discharge is used to strip and inactivate the residue, allowing the adsorption plate to regenerate in situ, restoring its electrostatic adsorption capacity, avoiding efficiency degradation due to dust accumulation, and extending the continuous service life of the core components. The residue after high-voltage pulse discharge stripping and inactivation falls into a collection box located below the adsorption plate under gravity. The collection box is sealed to effectively prevent secondary dust generation and avoid secondary pollution of the purified air. The collection box is also equipped with a convenient cleaning interface for regular cleaning by operators, ensuring long-term stable operation of the device. Simultaneously, the threshold-based on-demand triggering mechanism avoids ineffective operation of the plasma device, achieving precise energy configuration and significantly reducing energy consumption while ensuring efficient purification. Furthermore, the plasma device uses a low-temperature plasma device, generating extremely low heat during discharge, which will not cause thermal damage to the adsorption plate substrate or the surrounding environment, further ensuring the safety and stability of the equipment's long-term operation. Specifically, step S300 may include the following sub-steps S310 to S340:
[0093] S310: The operating current of the nano-electrostatic field array is monitored in real time by a current detection unit set on the adsorption plate.
[0094] Furthermore, due to the working principle of the nano-electrostatic field, as the amount of pathogens or particulate matter adsorbed on the plates increases, the equivalent impedance between the plates changes, resulting in a regular decrease in the operating current. This embodiment uses a high-sensitivity current detection unit for real-time monitoring, which can indirectly reflect the real-time cumulative adsorption amount on the plates.
[0095] S320. When the operating current is lower than the preset current threshold, it is determined that the adsorption amount of the adsorption plate has reached the saturation threshold, and an electrode regeneration trigger command is generated.
[0096] S330, in response to the electrode regeneration trigger command, activates the low-temperature plasma generator integrated with the adsorption electrode to generate high-energy particles on the surface of the adsorption electrode to inactivate pathogens adsorbed on the electrode in situ.
[0097] Furthermore, the low-temperature plasma device directly disinfects the locations where pollutants are concentrated. Its high-energy particles (such as electrons, ions, excited-state atoms, free radicals, etc.) can destroy the cell structure, proteins, or genetic material of pathogens, causing them to quickly become inactive. This avoids transporting or disturbing the adsorbed pathogens during the cleaning process, thereby eliminating the risk of secondary aerosol diffusion.
[0098] S340. After the low-temperature plasma generator is activated and runs for the preset disinfection time, the low-temperature plasma generator is turned off, and a high-voltage pulse signal is applied to the electrodes of the adsorption plate to peel off the inactivated pathogen residues from the surface of the adsorption plate.
[0099] Furthermore, after a preset disinfection period, an instantaneous high-voltage pulse signal is applied, and the strong electric field force or the generated weak shock wave is used to peel off the inactive residues attached to the adsorption plate, so that the adsorption plate can be regenerated and its initial adsorption capacity can be restored, thus entering the next adsorption cycle.
[0100] S400, based on real-time monitoring of pollutant concentration data in the vehicle interior and combined with a preset air quality dynamic change prediction model, adaptively adjusts the electric field strength of the nano-electrostatic field and the generation frequency of low-temperature plasma to achieve optimal sterilization energy consumption and air purification efficiency.
[0101] In this embodiment, an intelligent, dynamic, and adaptive in-vehicle air purification and control mechanism is constructed. Based on real-time monitoring data, pollution trends are predicted, and the electric field strength and plasma generation frequency are adaptively adjusted to control energy consumption at an optimal level while ensuring sterilization effectiveness. First, by introducing an air quality dynamic change prediction model, future air quality trends are predicted, rather than simply reacting to current pollution, effectively avoiding insufficient or excessive purification caused by lagging adjustments. Second, the target cleanliness level is dynamically set based on the predicted trend, and the nano-electrostatic field and low-temperature plasma are adjusted in conjunction, achieving synergistic sterilization of pollutants and ensuring the accuracy and timeliness of the purification effect. Finally, the introduced energy consumption and efficiency optimization algorithm automatically matches the optimal combination of operating parameters through iterative optimization, fundamentally solving the contradiction between high energy consumption and low efficiency, maintaining optimal air quality in the most economical way, and achieving the dual goals of excellent purification performance and green energy-saving operation. Specifically, step S400 may include the following sub-steps S410 to S450:
[0102] S410. Acquire pollutant concentration data, including particulate matter concentration, total microbial count, and volatile organic compound concentration, collected by the in-vehicle air quality sensor.
[0103] S420. Input pollutant concentration data and corresponding vehicle operating status data into the preset air quality dynamic change prediction model, and output the predicted value of air quality change trend within the preset time period through the model.
[0104] Furthermore, the mathematical expression for the air quality dynamic change prediction model is:
[0105] (1)
[0106] In Equation (1), T(τ) is the state transition matrix, which describes the natural decay of air quality; Q(k) is the pollutant concentration at time k; τ is the prediction time scale; Γ is the control input matrix, which represents the weight of the influence of vehicle state changes on air quality; v0 is the pollution source generation rate; v is the sterilization rate of the purification system; β is the correction gain coefficient; and E(k) is the prediction error at time k.
[0107] S430: Based on the predicted air quality change trend and combined with the current pollutant concentration data, dynamically calculate the current target cleanliness level.
[0108] Furthermore, based on predictions of future pollution trends and the current pollution status, the target cleanliness level actually needed at present is dynamically calculated. For example, if pollution is predicted to worsen in the future, a higher cleanliness level target is set in advance; if the current air quality is good and is predicted to remain stable, a basic maintenance level cleanliness target is set to avoid over-purification.
[0109] S440: Based on the target cleanliness level, the electric field strength of the nano-electrostatic field is adaptively adjusted, and the generation frequency of the low-temperature plasma is simultaneously matched and adjusted.
[0110] Furthermore, based on the calculated dynamic target cleanliness level, specific adjustment instructions are executed. This mainly involves two actions: first, adaptively adjusting the electric field strength of the nano-electrostatic field (the electric field strength directly affects the adsorption and capture capacity for particulate matter); and second, synchronously adjusting the generation frequency of the low-temperature plasma (the generation frequency directly affects the amount of high-energy particles generated). Both must be adjusted in tandem to ensure that the purification effect is increased or decreased synchronously.
[0111] S450 verifies the adjusted electric field strength and frequency combination through a preset energy consumption and efficiency optimization algorithm until the optimal combination of working parameters that meets the target cleanliness level and has the lowest ratio of sterilization energy consumption to air purification efficiency is found.
[0112] Furthermore, the adjusted parameter combination (electric field strength + frequency of occurrence) is not necessarily the optimal combination. Therefore, this embodiment verifies this by using a preset energy consumption and efficiency optimization algorithm. This algorithm evaluates the energy consumed to achieve the target cleanliness level and the purification speed achieved under the current parameter combination, calculates the ratio of energy consumption to efficiency, and then, through repeated fine-tuning and iterative optimization, ultimately locks in an optimal combination of operating parameters that ensures the target cleanliness level is achieved while minimizing this ratio, thereby achieving a balance between energy saving and high-efficiency purification.
[0113] On the other hand, reference Figure 1 As shown, this embodiment also proposes an in-vehicle adaptive sterilization system, including:
[0114] The nano-electrostatic field array consists of multiple sets of parallel adsorption and discharge plates. It is installed in the ventilation ducts and circulation ducts of the vehicle's air conditioning system. Under the action of a high-voltage electric field, it adsorbs particulate matter and charged pathogens in the air onto the surface of the plates, thus achieving physical capture.
[0115] The low-temperature plasma generator is located to the side or inside of the nano-electrostatic field array. It is used to generate low-temperature plasma containing a large number of high-energy particles under specific conditions to oxidize and inactivate pathogens on the adsorption plates, while decomposing volatile organic compounds.
[0116] The controller, connected to a nano-electrostatic field array and a low-temperature plasma generator, is used to execute the aforementioned in-vehicle adaptive sterilization method.
[0117] Furthermore, the controller includes:
[0118] The initial sterilization module is used to respond to the vehicle start signal, acquire the initial pollutant concentration data in the air inside the vehicle, and when the initial pollutant concentration exceeds the preset concentration step threshold, control the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle with the corresponding step power.
[0119] The external air supply sterilization module is used to inject outside air into the vehicle after electrostatic adsorption sterilization when the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold during vehicle operation, until the oxygen content of the air inside the vehicle is restored to the target oxygen content range.
[0120] The in-situ regeneration module for adsorption plates is used to trigger a low-temperature plasma generator to produce high-energy particles when the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold. This process inactivates pathogens adsorbed on the plates in situ and cleans the adsorption plates through pulse discharge.
[0121] The adaptive sterilization control module is used to adaptively adjust the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation based on real-time monitoring of pollutant concentration data in the vehicle interior, combined with a preset air quality dynamic change prediction model, so as to achieve optimal sterilization energy consumption and air purification efficiency.
[0122] Furthermore, this embodiment also proposes an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the above-described adaptive sterilization method for vehicle interiors.
[0123] Finally, this embodiment also proposes a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the aforementioned in-vehicle adaptive sterilization method.
[0124] In summary, the in-vehicle adaptive sterilization method, system, device, and storage medium proposed in this invention firstly, by introducing a graded power-driven nano-electrostatic field, the electric field strength can be adaptively matched according to the initial pollution load at the moment of vehicle startup, achieving the dual goals of energy saving and high efficiency. Secondly, through closed-loop control of oxygen content and a low-temperature intelligent compensation mechanism, the freshness of the air inside the vehicle is ensured while eliminating the comfort and secondary pollution problems caused by the direct introduction of cold air or pollutants from the outside. Furthermore, this embodiment innovatively constructs a saturation threshold determination logic based on the change of adsorption plate current and triggers low-temperature plasma for in-situ inactivation and pulse discharge self-cleaning, achieving long-term maintenance-free operation of the core purification components. Finally, by integrating an air quality dynamic change prediction model and an energy consumption efficiency optimization algorithm, the in-vehicle pollution trend can be predicted proactively, and the nano-electrostatic field strength and the low-temperature plasma generation frequency can be dynamically optimized to ensure that the system always operates at the optimal energy consumption ratio, guaranteeing both excellent sterilization effect and green energy saving. Compared with existing technologies, the embodiments of the present invention realize a technological leap from passive filtration to active capture, in-situ inactivation, and intelligent regeneration, effectively solving the technical bottlenecks of traditional filter cartridges that cannot capture tiny virus particles, are prone to secondary pollution, and have short maintenance cycles.
[0125] Since the systems / devices described in the above embodiments of the present invention are systems / devices used to implement the methods of the above embodiments of the present invention, those skilled in the art can understand the specific structure and modifications of the systems / devices based on the methods described in the above embodiments of the present invention, and therefore will not be repeated here. All systems / devices used in the methods of the above embodiments of the present invention fall within the scope of protection of the present invention.
[0126] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0127] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions.
[0128] It should be noted that in the description of this invention, the word "a" or "an" preceding a component does not exclude the existence of multiple such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. The use of terms such as first, second, third, etc., is merely for convenience and does not indicate any order. These terms can be understood as part of the component names.
[0129] Furthermore, it should be noted that in the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0130] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning of the basic inventive concept, can make other changes and modifications to these embodiments.
[0131] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the spirit and scope of the invention.
Claims
1. A vehicle-mounted adaptive sterilization method, characterized in that, include: In response to the vehicle start signal, the system acquires the initial pollutant concentration data in the air inside the vehicle. When the initial pollutant concentration exceeds the preset concentration threshold, the system controls the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle at the corresponding step power. During vehicle operation, when the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold, the intake fan is activated to inject outside air into the vehicle after electrostatic adsorption sterilization until the oxygen content of the air inside the vehicle is restored to the target oxygen content range. When the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold, the low-temperature plasma generator is triggered to generate high-energy particles to inactivate pathogens adsorbed on the plates in situ, and the adsorption plates are cleaned by pulse discharge. Based on real-time monitoring of pollutant concentration data in the vehicle interior, and combined with a preset air quality dynamic change prediction model, the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation are adaptively adjusted to optimize sterilization energy consumption and air purification efficiency.
2. The method as described in claim 1, characterized in that, In response to the vehicle start signal, the system acquires initial pollutant concentration data in the vehicle's interior air. When the initial pollutant concentration exceeds a preset concentration threshold, it controls the configured nano-electrostatic field array to perform electrostatic adsorption sterilization of the interior air at corresponding step power levels, including: In response to the vehicle start signal, the initial pollutant concentration data in the air inside the vehicle is collected by an air quality sensor installed inside the vehicle; The initial pollutant concentration is compared with the preset concentration step threshold, and the corresponding duty cycle control command is generated based on the concentration step threshold range in which the initial pollutant concentration is located. Based on duty cycle control commands, the nano-electrostatic field array is controlled to execute the corresponding level of output response in order to perform adaptive energy-saving electrostatic adsorption sterilization of the air inside the vehicle. Among them, the nano-electrostatic field array is an ionized electric field structure composed of conductive fibers and opposing adsorption plates. The electrode gap of the adsorption plates is at the nanometer level and is deployed in the ventilation duct and the in-vehicle circulation duct of the vehicle air conditioning system.
3. The method as described in claim 1, characterized in that, During vehicle operation, when the oxygen content inside the vehicle falls below a preset oxygen threshold, the intake fan is activated to inject outside air into the vehicle after electrostatic adsorption sterilization until the oxygen content inside the vehicle returns to the target oxygen content range, including: The oxygen concentration sensor installed inside the vehicle monitors the oxygen content of the air in real time. The oxygen content data is compared with the preset oxygen content threshold. When the detected oxygen content is lower than the oxygen content threshold, an intake control command is generated. According to the intake control command, the intake fan is started and the intake damper is switched to the external circulation mode, so that the outside air is introduced into the nano electrostatic field array for electrostatic adsorption sterilization treatment. The sterilized outside air is then injected into the vehicle through the ventilation duct. During the process of injecting outside air, the oxygen content of the air inside the vehicle is continuously monitored. When the oxygen content rises back to the preset target oxygen content range, the intake fan is turned off and the intake damper is switched back to the internal circulation mode.
4. The method as described in claim 3, characterized in that, After monitoring the oxygen content of the air inside the vehicle in real time using an oxygen concentration sensor installed inside the vehicle, it also includes: By installing a temperature sensor outside the vehicle, the ambient temperature data outside the vehicle can be monitored in real time. When the ambient temperature is lower than the preset human comfort temperature threshold and the oxygen content in the vehicle is lower than the oxygen content threshold, an internal circulation oxygen generation control command is generated. According to the internal circulation oxygen generation control command, the vehicle oxygen generator is started and the vehicle is controlled to maintain or switch to internal circulation mode. The oxygen generated by the vehicle oxygen generator is mixed with the original air in the vehicle and then introduced into the nano electrostatic field array for electrostatic adsorption sterilization treatment. During the process of injecting oxygen into the recirculating air through the vehicle's oxygen generator, the oxygen content of the air inside the vehicle is continuously monitored. When the oxygen content rises back to the preset target oxygen content range, the vehicle's oxygen generator is shut down.
5. The method as described in claim 1, characterized in that, When the accumulated adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold, a low-temperature plasma generator is triggered to produce high-energy particles, which inactivate pathogens adsorbed on the plates in situ. The adsorption plates are then cleaned by pulsed discharge, including: The operating current of the nano-electrostatic field array is monitored in real time by a current detection unit set on the adsorption plate. When the operating current is lower than the preset current threshold, it is determined that the adsorption amount of the adsorption plate has reached the saturation threshold, and an electrode regeneration trigger command is generated. In response to the electrode regeneration trigger command, the low-temperature plasma generator integrated with the adsorption electrode is activated to generate high-energy particles on the surface of the adsorption electrode to inactivate pathogens adsorbed on the electrode in situ. After the low-temperature plasma generator is activated and runs for the preset disinfection time, the low-temperature plasma generator is turned off, and a high-voltage pulse signal is applied to the electrodes of the adsorption plate to peel off the inactivated pathogen residues from the surface of the adsorption plate.
6. The method as described in claim 1, characterized in that, Based on real-time monitoring of pollutant concentration data inside the vehicle, and combined with a pre-set air quality dynamic change prediction model, the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation are adaptively adjusted to optimize sterilization energy consumption and air purification efficiency, including: Acquire pollutant concentration data, including particulate matter concentration, total microbial count, and volatile organic compound concentration, collected by in-vehicle air quality sensors; The pollutant concentration data and the corresponding vehicle operating status data are input into the preset air quality dynamic change prediction model, and the model outputs the predicted value of air quality change trend within a preset time period. Based on the predicted air quality change trend and combined with the current pollutant concentration data, the current target cleanliness level is dynamically calculated. Based on the target cleanliness level, the electric field strength of the nano-electrostatic field is adaptively adjusted, and the generation frequency of the low-temperature plasma is simultaneously matched and adjusted. The adjusted electric field strength and frequency combination is verified through a preset energy consumption and efficiency optimization algorithm until the optimal combination of working parameters that meets the target cleanliness level and has the lowest ratio of sterilization energy consumption to air purification efficiency is found.
7. An in-vehicle adaptive sterilization system, characterized in that, include Nanoscale electrostatic field array; Low-temperature plasma generator; The controller, connected to a nano-electrostatic field array and a low-temperature plasma generator, is used to execute an in-vehicle adaptive sterilization method as described in any one of claims 1-6.
8. The system as described in claim 1, characterized in that, The controller includes: The initial sterilization module is used to respond to the vehicle start signal, acquire the initial pollutant concentration data in the air inside the vehicle, and when the initial pollutant concentration exceeds the preset concentration step threshold, control the configured nano-electrostatic field array to perform electrostatic adsorption sterilization on the air inside the vehicle with the corresponding step power. The external air supply sterilization module is used to inject outside air into the vehicle after electrostatic adsorption sterilization when the oxygen content of the air inside the vehicle is lower than the preset oxygen threshold during vehicle operation, until the oxygen content of the air inside the vehicle is restored to the target oxygen content range. The in-situ regeneration module for adsorption plates is used to trigger a low-temperature plasma generator to generate high-energy particles when the cumulative adsorption amount on the adsorption plates of the nano-electrostatic field array reaches the saturation threshold. This particles in turn inactivate pathogens adsorbed on the plates in situ and clean the adsorption plates through pulse discharge. The adaptive sterilization control module is used to adaptively adjust the electric field strength of the nano-electrostatic field and the frequency of low-temperature plasma generation based on real-time monitoring of pollutant concentration data in the vehicle interior, combined with a preset air quality dynamic change prediction model, so as to achieve optimal sterilization energy consumption and air purification efficiency.
9. An electronic device, characterized in that, include: At least one processor; and memory that is communicatively connected to at least one processor; The memory stores instructions that can be executed by at least one processor, which enables the at least one processor to perform an adaptive sterilization method for vehicle interiors as described in any one of claims 1-6.
10. A computer-readable storage medium storing computer-executable instructions thereon, characterized in that, When executed by a processor, the computer-executable instructions implement the in-vehicle adaptive sterilization method as described in any one of claims 1-6.