Parking state full vehicle window high temperature prevention system based on infrared induction and control method

Abstract

The invention relates to the technical field of automobiles, and discloses a parking state full-window high temperature prevention system and control method based on infrared induction, and the system comprises an infrared difference detection module which is used for collecting and calculating the difference value of radiant heat inside and outside an automobile when the automobile is parked; the hierarchical control module is configured to calculate a predicted temperature through a temperature rise prediction algorithm based on the radiant heat difference value; when the predicted temperature reaches an activation threshold value, a grading dimming instruction is generated; and the pulse driving module is used for responding to the grading dimming instruction and controlling the light transmittance of the electrochromic car window in a pulse driving mode. The infrared differential detection module is used for monitoring the difference value of radiant heat inside and outside the vehicle in real time, the sensing target of the system is advanced from the lagged air temperature to the instant solar radiation heat flow, and therefore early warning time is provided for the system, sun protection intervention can be started before temperature rise occurs, and the sun protection effect of parking is improved.

Description

Technical Field

[0001] This disclosure relates to the field of automotive technology, specifically to a parking-state full-window high-temperature protection system and control method based on infrared sensing. Background Technology

[0002] With the increasing popularity of panoramic sunroofs and large-area glass designs in automobiles, the problem of high temperatures inside vehicles during summer parking has become increasingly prominent, seriously affecting driving comfort and health and safety. This presents a significant technological challenge: how to effectively block solar radiation and prevent a rapid rise in interior temperature when the vehicle is unoccupied.

[0003] Related technologies often suffer from passive and delayed sun protection methods. Existing physical sunshade methods such as sunshades and reflective films have limited effectiveness and cannot adaptively adjust to the external environment; while electrochromic control schemes based on temperature sensors only activate after the interior temperature has risen significantly, resulting in a noticeable response delay and poor sun protection. Therefore, how to achieve proactive, early, and precise intervention in solar radiation to achieve excellent parking sun protection has become an urgent problem to be solved. Summary of the Invention

[0004] In view of this, this disclosure provides a parking-state full-window high-temperature protection system and control method based on infrared sensing, in order to solve the problem of how to achieve proactive, early and precise intervention in solar radiation to achieve excellent parking sun protection effect.

[0005] This disclosure provides a parking-state full-window high-temperature protection system based on infrared sensing, the system comprising: The infrared differential detection module is used to collect and calculate the difference in radiant heat between the inside and outside of the vehicle when the vehicle is parked. The hierarchical control module, which is connected to the infrared differential detection module, is configured to: calculate the predicted temperature based on the radiative heat difference using a temperature rise prediction algorithm; and generate a hierarchical dimming command when the predicted temperature reaches the activation threshold. The pulse drive module, connected to the layered control module and the electrochromic windows of the entire vehicle, is used to respond to graded dimming commands and control the light transmittance of the electrochromic windows in a pulse drive manner.

[0006] This disclosure also provides a control method, the method comprising: When the vehicle is parked, the infrared differential detection module collects and calculates the difference in radiant heat between the inside and outside of the vehicle. The predicted temperature is calculated based on the radiative heat difference using a temperature rise prediction algorithm. When the predicted temperature reaches the activation threshold, a graded dimming command is generated and sent to the pulse drive module. The pulse drive module responds to the graded dimming command and controls the light transmittance of the entire vehicle's electrochromic windows in a pulse drive manner.

[0007] This disclosure also provides an electronic device, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the control method described above.

[0008] In another aspect, this disclosure provides a computer-readable storage medium storing computer instructions for causing a computer to implement the control method described above.

[0009] This disclosure also provides a computer program product, including computer instructions for causing a computer to perform the control method described above.

[0010] The infrared-sensing-based full-window high-temperature protection system and control method for parking vehicles, as described in the above embodiments of this disclosure, utilizes an infrared differential detection module to monitor the real-time difference in radiant heat between the vehicle's interior and exterior. This shifts the system's sensing target from lagging air temperature to immediate solar radiation heat flow, providing an early warning time and enabling sun protection intervention to begin before temperature rise occurs, thereby improving the sun protection effect while parking. By running a temperature rise prediction algorithm through a hierarchical control module, the system can accurately predict future temperature curves based on current radiation intensity, generating forward-looking dimming commands. This achieves a fundamental shift from "passively responding to high temperatures" to "actively preventing high temperatures," solving the problem of delayed response in existing technologies.

[0011] In addition, by responding to forward-looking commands through the pulse drive module and synchronously and rapidly controlling the light transmittance of all electrochromic windows in the vehicle, the system can establish an effective global sunshade barrier before a large amount of heat enters the vehicle, thereby significantly reducing the entry of solar radiation from the source and ultimately further improving the sun protection and cooling effect when parking. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 An exemplary schematic diagram of the architecture of a parking-state full-window high-temperature protection system 100 based on infrared sensing according to an embodiment of the present disclosure is shown; Figure 2A flowchart illustrating a control method provided in an embodiment of this disclosure is shown; Figure 3 A schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure is shown. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0015] With the increasing demands for automotive intelligence and driving comfort, the thermal management efficiency of car windows, as the largest heat exchange interface between the vehicle and the external environment, is crucial. With the widespread adoption of panoramic sunroofs and large glass roofs, vehicles face a more severe challenge of high interior temperatures when parked in summer. For example, the temperature changes inside the car under a 35℃ sunny weather condition are shown in Table 1 below:

[0016] Table 1 Here, when parking outdoors in summer, direct sunlight can cause the interior temperature to rise rapidly to over 60°C within a short time through the glass windows. This not only leads to interior aging and the release of harmful substances, but also leaves users facing an unbearably hot environment when they get back into the car, requiring the air conditioning to run at high intensity for extended periods to cool down, significantly impacting both user experience and energy efficiency. Therefore, how to efficiently and intelligently block solar radiation while the vehicle is parked, preventing the formation of high temperatures inside the car at the source, has become an important issue for improving automotive comfort and intelligence.

[0017] Currently, parking sun protection solutions in related technologies mainly include two methods: physical shading and single-parameter response. However, these methods have the following problems: 1. Existing electrochromic control schemes based on temperature sensors only activate color change after the air temperature inside the vehicle has risen significantly. By this time, a large amount of heat has already accumulated inside the vehicle, and sun protection measures are too late to effectively suppress the temperature peak. Essentially, it is a passive mode of "heating up first and then taking remedial measures".

[0018] 2. Existing solutions cannot directly and in real-time monitor solar radiation intensity, nor do they have the ability to predict future temperature rise trends based on current radiation conditions. This prevents the system from taking preventative measures before temperatures begin to rise, thus missing the optimal opportunity for sun protection and temperature control, and significantly reducing the effectiveness of sun protection.

[0019] 3. Existing solutions mostly control all windows uniformly or only the sunroof, lacking refined and differentiated control based on the orientation, tilt angle, and sun exposure of different windows, thus failing to build a global collaborative protection system that responds to environmental threats.

[0020] To address the aforementioned issues, various embodiments of this disclosure provide a parking-state full-window high-temperature protection system based on infrared sensing. The system includes: an infrared differential detection module for collecting and calculating the difference in radiant heat between the vehicle interior and exterior when the vehicle is parked; a layered control module, communicatively connected to the infrared differential detection module, configured to: calculate a predicted temperature based on the radiant heat difference using a temperature rise prediction algorithm; and generate a graded dimming command when the predicted temperature reaches an activation threshold; and a pulse drive module, connected to the layered control module and the full-vehicle electrochromic window, for responding to the graded dimming command and controlling the light transmittance of the electrochromic window in a pulse drive manner.

[0021] Please refer to Figure 1 , Figure 1 This diagram illustrates an exemplary architecture of an infrared-sensing-based parking-state full-window high-temperature protection system 100 (hereinafter referred to as system 100) according to an embodiment of this disclosure. Figure 1 As shown, the system includes: The infrared differential detection module 101 is used to collect and calculate the difference in radiant heat between the inside and outside of the vehicle when the vehicle is parked.

[0022] In this embodiment, the characteristic condition under which system 100 is activated and performs its protective function can be when the vehicle is parked. Here, vehicle parking can refer to a period of time after the vehicle's power system is turned off and the doors are locked. In this state, the vehicle's active cooling systems, such as air conditioning, are usually turned off, and the interior environment begins to be mainly affected by external solar radiation.

[0023] Furthermore, the infrared differential detection module 101 can serve as the core sensing unit for the system 100 to achieve proactive risk warning.

[0024] Specifically, the infrared differential detection module 101 can be used to actively and in real time monitor and calculate the difference in radiant thermal environment between the inside and outside of the vehicle after the vehicle enters the parking state, i.e., the radiant thermal difference value ( The radiative heat difference can refer to the numerical difference between the radiation intensity of a reference area outside the vehicle and the radiation intensity of one or more representative areas inside the vehicle, collected by this module at similar time points.

[0025] Here, the infrared differential detection module 101, unlike traditional temperature sensors that only measure the absolute temperature of a single location, directly captures the dynamic heat flow trend between the vehicle and the environment caused by solar radiation through a differential measurement strategy. This allows the system 100 to identify the risk of heat accumulation that may lead to high temperatures inside the vehicle earlier, before the ambient temperature or the air temperature inside the vehicle changes significantly.

[0026] For example, when the radiant heat difference detected by the infrared differential detection module 101 is a continuously positive and large difference (e.g., greater than the preset trigger threshold), it indicates that there is strong net heat from the external environment being transferred into the vehicle through the enclosure structure such as the windows. This can serve as a direct and advanced input signal to trigger the subsequent prediction and control logic of the system.

[0027] The startup of system 100 can follow an optimized dual-judgment logic. Specifically, the infrared differential detection module 101 calculates the radiant thermal difference (… The ambient light illuminance data, along with the ambient light intensity data optionally collected by a separate ambient light sensor, will be input together to the hierarchical control module 102.

[0028] The hierarchical control module 102 can be configured to first determine the above two input parameters: when the radiative heat difference is greater than a preset radiation threshold (e.g., ... Only when the ambient light intensity data is greater than a preset light threshold (e.g., 50 klux) will the system determine that there is a clear risk of high temperature caused by strong solar radiation in the current environment.

[0029] Under the premise that the above two conditions are met, the hierarchical control module 102 is officially triggered and its internal temperature rise prediction algorithm is activated to execute the subsequent predicted temperature calculation and decision-making process. This design ensures that the system 100 only operates at full power under truly necessary severe sunlight conditions, avoiding unnecessary computational overhead and energy consumption in scenarios without the risk of sun exposure, such as cloudy days or nights, further optimizing the overall energy efficiency and intelligence level of the system.

[0030] The hierarchical control module 102 is communicatively connected to the infrared differential detection module 101 and is configured to: calculate the predicted temperature based on the radiative heat difference using a temperature rise prediction algorithm; and generate a hierarchical dimming command when the predicted temperature reaches the activation threshold.

[0031] In this embodiment, the hierarchical control module 102 can serve as the decision-making core of the system 100, undertaking the task of converting perceived information into control commands.

[0032] Here, the function of the hierarchical control module 102 can be divided into prediction level and decision level.

[0033] Specifically, at the prediction level, the hierarchical control module 102 is configured to call the built-in temperature rise prediction algorithm based on the real-time radiative heat difference value provided by the infrared differential detection module 101. This temperature rise prediction algorithm can be a mathematical model based on thermodynamic principles, which, through comprehensive calculation, achieves a quantitative prediction of the temperature change trend inside the vehicle over a future period and outputs a predicted temperature value.

[0034] At the decision-making level, the hierarchical control module 102 can compare and judge the calculated predicted temperature with the preset activation threshold.

[0035] The activation threshold can be a calibrated temperature critical point, which represents the risk boundary that requires the initiation of active sun protection intervention. When the predicted temperature reaches or exceeds this activation threshold, it indicates that the vehicle is in or will soon enter a rapid heating phase, and the hierarchical control module 102 then generates a graded dimming command.

[0036] Here, a graded dimming command can be a set of instructions containing specific control logic, rather than a single switch signal. A graded dimming command can include differentiated target transmittance combinations for different locations on the vehicle to achieve zoned and graded blocking of solar radiation heat, thereby improving the overall sun protection and cooling effect.

[0037] As an example, different locations on a vehicle may include, but are not limited to: sunroof, side windows, windshield, etc.

[0038] The pulse drive module 103 is connected to the layer control module 102 and the whole vehicle electrochromic window, and is used to respond to the graded dimming command and control the light transmittance of the electrochromic window in a pulse drive mode.

[0039] In this embodiment, the pulse drive module 103 can serve as the execution terminal of the system 100 and is configured to convert the logical instructions issued by the layered control module 102 into physical signals that can drive the electrochromic window to move.

[0040] The physical signal output by the pulse drive module 103 can be driven by pulses, rather than by traditional DC regulated drive.

[0041] Specifically, the pulse driving method used can refer to the pulse driving module 103 supplying power to the electrochromic window by outputting a series of square wave pulse signals with specific voltage, frequency and duty cycle.

[0042] The duty cycle (the ratio of the energized time to the total time in one cycle) can be used as a key parameter for controlling the light transmittance of a car window. By adjusting the duty cycle, the average current and total charge applied to the electrochromic material can be precisely controlled, thereby achieving stepless or hierarchical fine control over its ion migration state and final light transmittance.

[0043] Electrochromic windows can serve as both a functional unit and a physical carrier for performing the final sun protection regulation function within system 100. Electrochromic windows can be windows whose visible light transmittance can be reversibly and controllably changed in response to an externally applied electrical excitation signal.

[0044] Furthermore, since electrochromic windows require only a small amount of charge to maintain their state after reaching the target light transmittance, pulse drive can achieve the same dimming effect as DC drive by significantly reducing its average operating current. This greatly reduces the static power consumption of System 100 in long-term parking protection, meeting the stringent requirements of automotive systems for low power consumption. Secondly, this method helps reduce the degradation of electrochromic materials under long-term DC electric fields, which is of positive significance for extending the service life of windows.

[0045] The infrared-sensing-based parking-state full-window high-temperature protection system and control method of the above embodiments of this disclosure utilizes the infrared differential detection module 101 to monitor the difference in radiant heat between the inside and outside of the vehicle in real time. This shifts the system's sensing target from lagging air temperature to immediate solar radiation heat flow, providing an early warning time and enabling sun protection intervention to be initiated before temperature rise occurs, thereby improving the sun protection effect while parking. By using the layered control module 102 to run a temperature rise prediction algorithm, the system can accurately predict future temperature curves based on current radiation intensity, generating forward-looking dimming commands. This achieves a fundamental shift from "passively responding to high temperatures" to "actively preventing high temperatures," solving the problem of delayed response in existing technologies. Through the pulse drive module 103 responding to the forward-looking commands and synchronously and rapidly controlling the light transmittance of all electrochromic windows, the system can establish an effective global sunshade barrier before a large amount of heat enters the vehicle, significantly reducing the entry of solar radiation from the source and ultimately further improving the sun protection and cooling effect while parking.

[0046] In one possible implementation of the above embodiments, the infrared differential detection module 101 includes an infrared sensor array configured to calculate the radiative heat difference by comparing the radiation intensity of specific areas inside and outside the vehicle.

[0047] In this embodiment, the infrared sensor array consists of multiple infrared sensor units arranged in a spatially distributed manner. These units are divided into an external monitoring group and an internal monitoring group. The units of the external monitoring group can be arranged outside the vehicle (such as the outer surface of the roof or the exterior rearview mirror) to collect baseline data on ambient solar radiation; the units of the internal monitoring group can be arranged in key areas inside the vehicle (such as below the windshield, the roof lining, and the side window trim panels) to collect radiation data characterizing the thermal state inside the vehicle.

[0048] The array, with its inherent spatial resolution, can simultaneously acquire radiation data from multiple discrete locations inside and outside the vehicle. To improve the representativeness and reliability of the data, the infrared differential detection module 101 can perform data fusion processing on the readings of multiple sensor units belonging to the same monitoring group, for example, by calculating the average value or removing outliers.

[0049] The process of calculating the radiative heat difference involves comparing the external radiation intensity benchmark data after fusion processing with the internal radiation intensity data in real time and obtaining the difference.

[0050] Here, this differential measurement method based on spatially distributed arrays can effectively overcome measurement deviations caused by local heat sources or obstructions through multi-point sampling and data processing.

[0051] The infrared-sensing-based full-window high-temperature protection system and control method for parking vehicles, as described in the above embodiments of this disclosure, utilizes a spatially distributed infrared sensor array to simultaneously acquire radiation data from multiple representative discrete locations inside and outside the vehicle. This overcomes measurement biases caused by local heat sources or momentary obstruction from single sensors, significantly improving the comprehensiveness and anti-interference capability of thermal risk perception. By fusing the data from the monitoring groups inside and outside the array, the information from multiple discrete measurement points is transformed into a more representative set of benchmark data and internal state data. This provides a more stable and accurate radiative heat difference value for subsequent calculations, improving the accuracy of subsequent temperature prediction and thus enhancing the vehicle's sun protection and cooling effect.

[0052] In one possible implementation of the above embodiments, the graded dimming command includes a transmittance combination strategy corresponding to multiple preset temperature ranges; wherein, different preset temperature ranges correspond to different target transmittances of windows at different locations throughout the vehicle.

[0053] In this embodiment, the system 100 can preset at least two temperature ranges, and each temperature range can be associated with a target light transmittance combination for a specific location of the vehicle window.

[0054] Here, when a vehicle is parked, different windows receive and conduct varying amounts of solar radiation heat due to differences in their tilt angle, orientation, or glass area. Therefore, by setting different light transmittance for windows in different positions when parked, it is possible to more precisely block radiant heat.

[0055] In a preferred embodiment, the system can preset a first temperature range and a second temperature range, and execute the following strategy: When the predicted temperature is within the first temperature range (e.g., predicted temperature) Not less than and less than The graded dimming command can include the following control actions: reducing the light transmittance of the sunroof to 5%, the light transmittance of the side windows to 40%, the light transmittance of the windshield to 50%, and the light transmittance of the rear window can also be adjusted simultaneously, for example, reduced to 10%.

[0056] When the predicted temperature rises to a higher second temperature range (e.g., predicted temperature) Not small The graded dimming command can include the following control actions: the light transmittance of all electrochromic windows (including but not limited to side windows, windshield, and rear window) except for the sunroof is reduced to 5%, and the spectrally selective reflective layer in the electrochromic window is activated to enhance the reflectivity of the infrared spectrum.

[0057] The infrared-sensing-based parking-state full-window high-temperature protection system and control method disclosed in the above embodiments achieves a leap from single-threshold control to multi-level progressive regulation by setting the graded dimming command to include a transmittance combination strategy corresponding to multiple preset temperature ranges. This avoids overreaction under low-risk conditions while ensuring full protection under high-risk conditions. By assigning different preset temperature ranges to different target transmittances for windows in different locations throughout the vehicle, the system achieves refined zoning management of areas such as the sunroof and side windows. This allows for precise blocking of heat loads for each window, ensuring optimal sun protection while optimizing energy distribution and maintaining good interior lighting.

[0058] In one possible implementation of the above embodiments, the temperature rise prediction algorithm is based on the following thermodynamic model:

[0059] in, To predict temperature, The initial temperature when the vehicle is parked. Equivalent solar radiation intensity To predict the time, The heat accumulation coefficient is related to the vehicle model. This is the initial heat dissipation correction item. This is the thermal equilibrium time constant.

[0060] In this embodiment, For temperature prediction, it is used to indicate the expected temperature inside the vehicle at a future time; The initial temperature of the vehicle when parked is measured in real time by an infrared sensor when the vehicle is locked. This represents the equivalent solar radiation intensity, and the unit can be watts per square meter (W / m²). ), can be determined by the difference between the light sensor and the radiant heat ( The results were obtained through fusion calculation.

[0061] Furthermore, The heat accumulation coefficient is related to the vehicle model, and the unit can be ( / W This can be related to the vehicle type and specific heat capacity characteristics, and can be calibrated through wind tunnel testing; This is the initial heat dissipation correction term, and the unit can be Kelvin (K). This can reflect the initial heat dissipation capacity of the car window when it is not dimmed; The thermal equilibrium time constant can be expressed in units of one second ( ). The value can be inversely proportional to the volume of the vehicle's interior space to characterize the rate at which the system approaches thermal equilibrium.

[0062] As an example, the execution steps of the above thermodynamic model may include: Step 1: After the vehicle is turned off and locked, the system 100% activates the infrared sensor and light sensor to collect the difference in radiant heat between the inside and outside of the vehicle in real time. And ambient light intensity, and obtain the initial temperature. ; Step 2, according to The equivalent solar radiation intensity was calculated based on the ambient light intensity. ; Step 3: Retrieve the corresponding parameter from the pre-stored parameter table based on the vehicle model (e.g., compact sedan or SUV). , as well as value.

[0063] For example, the pre-stored parameter table can be shown in Table 2 below:

[0064] Table 2 Step 4: Calculate the predicted temperature using a fixed time step (e.g., 10 minutes). In the thermodynamic model It can simulate the actual heat dissipation process, in the initial stage (i.e. When the temperature is low, the car windows are not fully heated yet, resulting in significant heat loss. The exponential term is significant; when it is significant in the later stages (i.e. When the temperature is relatively high, the vehicle body enters a state of thermal equilibrium, and the heat dissipation is approximately zero. The exponential term approaches 0.

[0065] Step 5, if the predicted temperature If so, the graded dimming strategy will be activated.

[0066] Through the infrared sensing-based parking-state full-window high-temperature protection system and control method of the above embodiments of this disclosure, the parameters of the thermodynamic model are... , as well as The value is tied to the specific vehicle model, allowing the system to adapt to the thermal capacity and spatial characteristics of different vehicles. This improves the system's adaptability and intelligence, thereby enhancing prediction accuracy and control effectiveness. The exponential term introduced in the model... It can accurately simulate the nonlinear physical process of significant heat dissipation in the initial stage of vehicle parking, followed by a tendency to reach thermal equilibrium. This makes the prediction curve more closely match actual temperature changes, effectively reducing the risk of false or missed triggers, and further improving the accuracy and robustness of temperature prediction.

[0067] In one possible implementation of the above embodiments, the pulse drive module 103 is configured to apply a drive voltage to the electrochromic window with a specific duty cycle.

[0068] In this embodiment, the pulse drive module 103 receives the graded dimming command from the system, and the module can pre-store or calculate in real time the optimal drive duty cycle relative to different dimming levels.

[0069] As an example, when the predicted temperature is in a lower risk range (e.g.) When using a pulsed mode with a low duty cycle (e.g., 30%), the driving voltage can be used, which can reduce the power consumption of the system while maintaining the required shading depth.

[0070] When the predicted temperature is in a high-risk range (e.g.) When the silver-based reflective layer is activated and kept in its deepest tinted state, the driving voltage can be switched to a high duty cycle or continuous power supply mode to ensure that the reflective layer and electrochromic layer obtain sufficient power to achieve the best heat insulation effect.

[0071] Furthermore, the layered control module 102 is also configured to: upon receiving a vehicle unlocking signal, control the pulse drive module 103 to restore the light transmittance of the entire vehicle's electrochromic windows to a reference light transmittance of not less than 80% within 0.5 seconds.

[0072] Here, upon receiving the vehicle unlock signal, the layer control module 102 sends a recovery command to the pulse drive module 103. Regardless of the current duty cycle drive state, the pulse drive module 103 immediately responds to the recovery command and outputs a reverse, high duty cycle pulse voltage within 0.5 seconds, driving the electrochromic glass to quickly recover to a reference light transmittance of no less than 80%, ensuring clear and safe driving visibility.

[0073] The infrared-sensing-based parking-state full-window high-temperature protection system and control method disclosed in the above embodiments of this invention significantly reduces the static power consumption of the high-temperature protection system during vehicle parking by employing pulsed drive instead of continuous power supply, providing electrical energy only when necessary. This meets the low-power design requirements of automotive systems. Intermittent power supply also helps reduce the aging effect of electrochromic materials under long-term, continuous electric fields, thereby extending the service life and reliability of the entire window system.

[0074] In one possible implementation of the above embodiments, when the graded dimming command is executed, the light transmittance of the preset area at the bottom of the windshield is always kept at no less than the safe light transmittance threshold.

[0075] In this embodiment, the preset area may refer to the bottom area of ​​the windshield near the dashboard.

[0076] As an example, the preset area can be defined as a strip extending upwards from the lower edge of the glass at a height of 20 centimeters. Here, the delineation of this area can fully consider the driver's visibility needs when entering the vehicle and before driving, ensuring that the driver can clearly observe the instrument panel, the near-end area of ​​the road ahead, and the situation in front of the vehicle.

[0077] The safe light transmittance threshold can be set according to automotive safety driving regulations.

[0078] Preferably, the safe light transmittance threshold can be no less than 70%. It is understood that even if the system needs to reduce the light transmittance of other areas of the windshield to 5% or 50% due to high temperature protection, the light transmittance of the bottom preset area will always remain at 70% or above.

[0079] Furthermore, the aforementioned zone control can be implemented in various ways. For example, during the manufacturing of electrochromic glass, an independent transparent electrode can be provided for the bottom safety area of ​​the windshield, allowing it to be individually driven with a different voltage than the control area, thereby independently maintaining high light transmittance. Alternatively, the windshield can be considered as two independent dimming zones, with the bottom safety area connected to an independent drive circuit aimed at high light transmittance.

[0080] When issuing a dimming command, the layered control module 102 can simultaneously include differentiated commands for different areas of the windshield, and the pulse drive module 103 generates different drive signals accordingly for execution.

[0081] The infrared sensing-based parking full-window high-temperature protection system and control method of the above embodiments of this disclosure ensure that the driver has a key field of vision that meets regulatory requirements and has sufficient light transmittance at the moment the vehicle is unlocked and before driving. This effectively avoids the risk of unclear vision and misjudgment caused by dark tinting of the entire window, and provides fundamental protection for safe starting and driving.

[0082] In one possible implementation of the above embodiments, the electrochromic window includes the following sequentially stacked structures: Transparent conductive layer; An electrochromic response layer, comprising a cathode electrochromic material WO3 and an anode electrochromic material NiO; Ion-conducting layer; and, The spectrally selective reflective layer is a silver nanowire mesh with a grid linewidth of no more than 50 nanometers.

[0083] In this embodiment, the electrochromic window adopts a composite layered structure, which may include, in sequence from the inside of the vehicle to the outside (or vice versa): a transparent conductive layer, an electrochromic response layer, an ion conduction layer, and a spectrally selective reflective layer.

[0084] Specifically, the transparent conductive layer can be a composite electrode structure of indium tin oxide (ITO) and silver nanowires.

[0085] In this circuit, the transparent conductive layer acts as the electrode, responsible for uniformly applying the driving voltage to the entire window surface. The composite structure of the transparent conductive layer aims to balance high conductivity and high light transmittance (e.g., light transmittance > 85%), ensuring a rapid and uniform electrochromic response.

[0086] The electrochromic response layer can serve as a complementary structure, containing tungsten trioxide ( ) as a cathode electrochromic material and nickel oxide ( As an anodic electrochromic material, under the action of an applied electric field, A reduction reaction occurs, resulting in coloring, while The two processes work synergistically to produce color through an oxidation reaction.

[0087] Among them, the electrochromic response layer can be used to adjust the transmittance in the visible light band. The synergistic effect of the two materials can achieve deeper coloring, faster response speed and longer cycle life.

[0088] The ion-conducting layer can be made of a doped solid electrolyte, such as lithium aluminate (Lia). ).

[0089] In this layer, the ion-conducting layer serves as a channel for ion transport, allowing ions (such as...) to pass through under voltage-driven conditions. The ion-conducting layer can reversibly insert and extract between electrochromic response layers, thereby initiating coloring and fading processes. The solid-state properties of the ion-conducting layer can improve the stability and safety of the device, with ion mobility > This ensures sufficient response speed.

[0090] The spectrally selective reflective layer can be a nanowire mesh, the key feature of which is that the mesh linewidth is no more than 50 nm.

[0091] The spectral selective reflective layer is the core component for achieving efficient heat insulation in electrochromic windows. It is designed to have high reflectivity for infrared light while having minimal impact on visible light. When activated, the spectral selective reflective layer can reflect more than 90% of infrared light, thereby directly blocking the main heat sources of solar radiation from the outside of the vehicle.

[0092] Through the infrared sensing-based parking-state full-window high-temperature protection system and control method of the above embodiments of this disclosure, the composite structure of the electrochromic window achieves zoned management of the solar spectrum. That is, the electrochromic layer can be used to regulate visible light and solve the glare problem; the nano-silver wire reflective layer can be dedicated to blocking infrared rays, reducing heat input at the source. This synergistic effect can improve the heat insulation and cooling effect. By integrating a nano-silver wire mesh with a linewidth ≤50nm as a spectrally selective reflective layer, the system can actively activate highly efficient reflection of infrared rays (>90%) when needed. This is an active heat shield that fundamentally curbs the rise in vehicle interior temperature.

[0093] In one embodiment, further reference Figure 2 , Figure 2 A flowchart illustrating a control method provided in an embodiment of this disclosure is shown, which is applied to the above-mentioned... Figure 1 The infrared sensing-based parking-state full-window high-temperature protection system 100 shown can include the following steps in its process: Step S201: When the vehicle is in a parked state, the infrared differential detection module collects and calculates the difference in radiant heat between the inside and outside of the vehicle.

[0094] Step S202: Calculate the predicted temperature based on the radiative heat difference using a temperature rise prediction algorithm.

[0095] Step S203: When the predicted temperature reaches the activation threshold, a graded dimming command is generated and sent to the pulse drive module.

[0096] In this embodiment, the preprocessing includes filtering and noise reduction.

[0097] In step S204, the pulse drive module responds to the graded dimming command and controls the light transmittance of the entire vehicle's electrochromic windows in a pulse drive mode.

[0098] In one possible implementation of the above embodiments, the infrared differential detection module includes an infrared sensor array. The infrared differential detection module collects and calculates the difference in radiant heat between the inside and outside of the vehicle, including: The difference in radiant heat is calculated by comparing the radiation intensity of specific areas inside and outside the vehicle using an infrared sensor array.

[0099] In one possible implementation of the above embodiments, generating a graded dimming command includes: Based on the preset temperature range where the predicted temperature is located, the corresponding light transmittance combination strategy is selected; among them, different preset temperature ranges correspond to different target light transmittances for windows at different locations throughout the vehicle.

[0100] In one possible implementation of the above embodiments, the predicted temperature is calculated using a temperature rise prediction algorithm, specifically based on the following thermodynamic model:

[0101] in, To predict temperature, The initial temperature when the vehicle is parked. Equivalent solar radiation intensity To predict the time, The heat accumulation coefficient is related to the vehicle model. This is the initial heat dissipation correction item. This is the thermal equilibrium time constant.

[0102] In one possible implementation of the above embodiments, controlling the light transmittance of the entire vehicle's electrochromic windows using a pulse-driven method includes: A driving voltage is applied to the electrochromic car window with a specific duty cycle.

[0103] In one possible implementation of the above embodiments, the preset temperature range includes a first temperature range and a second temperature range; Generate graded dimming instructions, including: When the predicted temperature is in the first temperature range, an instruction is generated to control the sunroof light transmittance to decrease to the first value, the side window light transmittance to decrease to the second value, and the windshield light transmittance to decrease to the third value. When the predicted temperature is in the second temperature range, an instruction is generated to control the light transmittance of all windows except the sunroof to drop to the fourth value and to activate the spectrally selective reflective layer in the electrochromic windows.

[0104] In one possible implementation of the above embodiments, when the graded dimming command is executed, the light transmittance of the preset area at the bottom of the windshield is always kept at a level not lower than the safe light transmittance threshold.

[0105] In one possible implementation of the above embodiments, the electrochromic window includes the following sequentially stacked structure: a transparent conductive layer; An electrochromic response layer, comprising a cathode electrochromic material WO3 and an anode electrochromic material NiO; Ion-conducting layer; and, The spectrally selective reflective layer is a silver nanowire mesh with a grid linewidth of no more than 50 nanometers.

[0106] It should be noted that the infrared-sensing-based parking window high-temperature protection system provided in the above embodiments is only illustrated by the division of the above-described program modules when implementing the corresponding control methods. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the above system can be divided into different program modules to complete all or part of the processing described above. Furthermore, the system provided in the above embodiments and the corresponding... Figure 2 The embodiments of the methods shown belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0107] This disclosure also provides an electronic device having the above-described features. Figure 1 The image shows a parking-state full-window high-temperature protection system based on infrared sensing.

[0108] Figure 3 A schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure is shown.

[0109] The following is a detailed reference. Figure 3 The diagram illustrates a structural schematic suitable for implementing an electronic device according to embodiments of the present disclosure. The electronic device may include a processor (e.g., a central processing unit, graphics processor, etc.) 301, which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) 302 or a program loaded from memory 308 into random access memory (RAM) 303. The RAM 303 also stores various programs and data required for the operation of the electronic device. The processor 301, ROM 302, and RAM 303 are interconnected via a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0110] Typically, the following devices can be connected to I / O interface 305: input devices 306 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 307 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 308 including, for example, magnetic tapes, hard disks, etc.; and communication devices 309. Communication device 309 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 3 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.

[0111] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 309, or installed from memory 308, or installed from ROM 302. When the computer program is executed by processor 301, it performs the functions defined in the network data stream hardware offloading method for heterogeneous descriptor unified processing of embodiments of this disclosure.

[0112] Figure 3 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0113] This disclosure also provides a computer-readable storage medium in which the methods described in this disclosure can be implemented in hardware or firmware, or implemented as recordable on a storage medium, or implemented as computer code downloaded over a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and subsequently stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the network data stream hardware offloading method for unified processing of heterogeneous descriptors shown in the above embodiments is implemented.

[0114] A portion of this disclosure can be applied to computer program products, such as computer program instructions, which, when executed by a computer, can invoke or provide methods and / or technical solutions according to this disclosure through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, and installation package files. Accordingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions; the computer compiling the instructions and then executing the corresponding compiled program; the computer reading and executing the instructions; or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0115] Although embodiments of the present disclosure have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A high temperature system for all vehicle windows in a parked state based on infrared induction, characterized in that, The system comprises: an infrared differential detection module for collecting and calculating the radiation heat difference between the inside and outside of the vehicle when the vehicle is parked; a hierarchical control module in communication with the infrared differential detection module, configured to calculate a predicted temperature by a temperature rise prediction algorithm based on the radiation heat difference, and generate a hierarchical dimming instruction when the predicted temperature reaches an activation threshold; a pulse driving module connected with the hierarchical control module and the electrochromic windows of the vehicle, for controlling the light transmittance of the electrochromic windows in a pulse driving manner in response to the hierarchical dimming instruction.

2. The system of claim 1, wherein, The infrared differential detection module comprises an infrared sensor array configured to calculate the radiation heat difference by comparing the radiation intensity of specific areas inside and outside the vehicle.

3. The system of claim 1, wherein, The hierarchical dimming instruction includes a light transmittance combination strategy corresponding to a plurality of preset temperature intervals, wherein different preset temperature intervals correspond to different target light transmittances of the windows at different positions of the vehicle.

4. The system of claim 1, wherein, The temperature rise prediction algorithm is based on the following thermodynamic model: wherein, is the initial temperature, is the initial temperature, is the equivalent solar radiation intensity, is the prediction time, is the thermal accumulation coefficient related to the vehicle model, is the initial heat dissipation correction term, is the thermal equilibrium time constant.

5. The system of claim 1, wherein, The pulse driving module is configured to apply a driving voltage to the electrochromic windows with a specific duty cycle.

6. The system of claim 3, wherein, The preset temperature intervals include a first temperature interval and a second temperature interval; When the predicted temperature is in the first temperature interval, the hierarchical dimming instruction controls the light transmittance of the sunroof to a first value, the light transmittance of the side windows to a second value, and the light transmittance of the front windshield to a third value; When the predicted temperature is in the second temperature interval, the hierarchical dimming instruction controls the light transmittance of all windows of the vehicle except the sunroof to a fourth value, and activates the spectrum-selective reflection layer in the electrochromic window.

7. The system of claim 6, wherein, When the hierarchical dimming instruction is executed, the light transmittance of a predetermined area at the bottom of the front windshield always remains not lower than a safety light transmittance threshold.

8. The system of claim 1, wherein, The electrochromic window comprises the following sequentially stacked structures: a transparent conductive layer; an electrochromic response layer containing cathode electrochromic material WO3 and anode electrochromic material NiO; an ion conduction layer; and a spectrum-selective reflection layer, which is a nanometer silver wire mesh with a mesh line width not greater than 50 nanometers.

9. The system of claim 1, wherein, The hierarchical control module is further configured to control the pulse driving module to restore the light transmittance of the electrochromic windows of the vehicle to a baseline light transmittance not lower than 80% within 0.5 seconds upon receiving a vehicle unlocking signal.

10. A control method applied to the infrared-sensing based high-temperature prevention system for all windows in a parked state according to any one of claims 1-9, characterized in that, The method comprises: collecting and calculating the radiation heat difference between the inside and outside of the vehicle by an infrared differential detection module when the vehicle is in a parked state; calculating a predicted temperature by a temperature rise prediction algorithm based on the radiation heat difference; generating a hierarchical dimming instruction when the predicted temperature reaches an activation threshold, and sending the hierarchical dimming instruction to a pulse driving module; the pulse driving module controls the light transmittance of the electrochromic windows of the vehicle in a pulse driving manner in response to the hierarchical dimming instruction.

11. An electronic device, comprising: comprises: a memory and a processor in communication connection with each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the control method of claim 10.

12. A computer-readable storage medium, characterized in that, The computer readable storage medium has stored thereon computer instructions for causing a computer to perform the control method of claim 10.

13. A computer program product, characterised in that, The computer readable storage medium has stored thereon computer instructions for causing a computer to perform the control method of claim 10.

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