A window cold fog cleaning warning system and method based on a transparent A-pillar
Through the transparent A-pillar window cold fog cleaning warning system, the temperature difference and visibility of the interior and exterior are detected in real time, and the heating air supply and cleaning modules and image display are used to solve the problem of fog in front windows of the vehicle affecting the field of view and improve driving safety.
Patent Information
- Application Number
- CN202310278198.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-21
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2043-03-21
AI Technical Summary
In cold environments, cold and damp fog is prone to appear on the inside of the front window of the vehicle, which affects the driver's vision, especially when driving at high speed, causing safety hazards.
The transparent A-pillar window cold fog cleaning warning system is adopted, and the internal and external temperature difference and visibility are detected in real time through the induction module, and the A-pillar heating air supply module and the front window fog cleaning module are used for defog removal, and real-time display of the image module and driving strategy suggestions are provided when necessary.
Effectively prevent and quickly remove front window fog, improve driver's vision, reduce traffic accident risks, and provide real-time defog removal strategies and driving guidance.
Smart Images

Figure CN116160995B_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present invention relate to the technical field of cycling assisted driving, and particularly to a window cold fog cleaning and warning system and method based on a transparent A-pillar. Background Art
[0002] There are three columns on each side of a car body. Among them, the inclined columns connecting the roof and the front cabin on both sides of the front windshield are called A-pillars. Whenever the vehicle is turning or entering a curve, the driver's vision will be partially blocked by the A-pillars, resulting in a blind spot in the field of vision. The vehicle A-pillars will block part of the line of sight, making it easy to have accidents when turning.
[0003] Currently, during vehicle driving, especially in cold environments such as rainy days, cold and humid fog is likely to appear on the inner side of the vehicle's front view window, affecting the driver's vision. Especially when driving on the highway, the driver's driving speed is fast and it is inconvenient to clean, which is likely to cause great potential safety hazards. How to use a transparent A-pillar to solve the wet fog on the front view window is an urgent problem to be solved at present. Summary of the Invention
[0004] In view of this, it is necessary to provide a window cold fog cleaning and warning system and method based on a transparent A-pillar to solve the problem that in the prior art, cold and humid fog is likely to appear on the inner side of the vehicle's front view window in a cold environment, affecting the driver's vision, being inconvenient to clean when the driving speed is fast, and being likely to cause great potential safety hazards.
[0005] To solve the above technical problems, in a first aspect, the embodiments of the present invention provide a window cold fog cleaning and warning system based on a transparent A-pillar, including a sensing module, an A-pillar warm air supply module, a front view window fog cleaning module, and an intelligent management module;
[0006] The sensing module is used to sense the temperature difference inside and outside the vehicle in real time and detect the visibility of the front view window and the rearview mirror in real time;
[0007] The A-pillar warm air supply module is used to supply warm air to the front view window along the side of the transparent A-pillar;
[0008] The front view window fog cleaning module is used to clean and defog the inner side of the front view window;
[0009] The intelligent management module is used to send a reminder to turn on the A-pillar warm air supply module, or send a reminder to increase the air conditioner power, or turn on the A-pillar warm air supply module when it is determined that the temperature difference inside and outside is greater than a preset temperature difference threshold; and send a reminder to turn on the front view window fog cleaning module, or turn on the front view window fog cleaning module when it is determined that the visibility is less than a preset visibility threshold.
[0010] In some possible implementations, it further includes an image module, which is used to collect the front and rear images of the vehicle and display them at a preset position inside the vehicle;
[0011] The intelligent management module is further configured to automatically turn on the image module when it determines that the visibility is less than a preset visibility threshold.
[0012] In some possible implementations, the image module includes an outer A-pillar camera, a front-view camera, a rear-view camera, and an A-pillar display screen;
[0013] The outer A-pillar camera is disposed outside the transparent A-pillar. The outer A-pillar camera is used to collect the first image within a set angle range outside the transparent A-pillar. The front-view camera is disposed inside the front-view window and is used to collect the second image of the road ahead of the vehicle;
[0014] The rear-view camera is installed at the edge of the rearview mirror. The rear-view camera is used to collect the third image of the road behind the vehicle;
[0015] The A-pillar display screen is disposed inside the transparent A-pillar and is used to display the first image, and / or display the second image, and / or display the third image.
[0016] In some possible implementations, the intelligent management module includes a cold fog cleaning warning unit and an image guidance unit;
[0017] The cold fog cleaning warning unit is configured to determine that fog appears when it determines that the temperature difference between the inside and outside is greater than a preset temperature difference threshold, send a reminder to turn on the A-pillar heating air supply module, or send a reminder to increase the air conditioner power, or turn on the A-pillar heating air supply module; the cold fog cleaning warning unit is further configured to automatically turn on the image module when it determines that the visibility is less than a preset first visibility threshold, and start the front-view window fog cleaning module when it determines that the first visibility is less than a preset second visibility threshold;
[0018] The image guidance unit is configured to extract traffic participants from the front and rear images, analyze the movement trajectories of the traffic participants, generate a vehicle driving strategy based on the movement trajectories, and push the vehicle driving strategy to the driver; the vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
[0019] In some possible implementations, the sensing module includes a humidity sensor, an optical sensor, and a temperature sensor;
[0020] The temperature sensor includes a first temperature sensor disposed inside the front-view window and a second temperature sensor disposed outside the front-view window;
[0021] The humidity sensor includes a first humidity sensor disposed inside the front windshield and a second humidity sensor disposed inside the rearview mirror;
[0022] The optical sensor includes a first optical sensor disposed inside the front windshield and a second optical sensor disposed inside the rearview mirror.
[0023] In some possible implementation manners, the A-pillar heating air supply module includes an inner A-pillar heating air supply unit and a first interior trim panel mounting groove. The first interior trim panel mounting groove is disposed on one side of the transparent A-pillar. The inner A-pillar heating air supply unit is mounted on the transparent A-pillar through the first interior trim panel mounting groove. The inner A-pillar heating air supply unit is configured to supply warm air to the front windshield along one side of the transparent A-pillar.
[0024] In some possible implementation manners, the front windshield fog cleaning module includes an inner A-pillar cleaning unit and a second interior trim panel mounting groove;
[0025] The second interior trim panel mounting groove is disposed on one side of the transparent A-pillar;
[0026] The inner A-pillar cleaning unit includes a cleaning arm and a rubber strip. The rubber strip is disposed on the side of the cleaning arm. One end of the cleaning arm is rotatably mounted in the second interior trim panel mounting groove. The rubber strip on the side of the cleaning arm is in contact with the inner side surface of the front windshield.
[0027] In a second aspect, an embodiment of the present invention provides a method for warning and cleaning cold fog on a window based on a transparent A-pillar according to the window cold fog cleaning and warning system based on a transparent A-pillar described in the first aspect embodiment of the present invention, including:
[0028] Extracting the internal and external temperature difference and the visibility;
[0029] If it is determined that the internal and external temperature difference is greater than a preset temperature difference threshold, a fogging warning is issued, a reminder to turn on the A-pillar heating air supply module is sent, or a reminder to increase the air conditioner power is sent, or the A-pillar heating air supply module is turned on;
[0030] If it is determined that the visibility is less than a preset visibility threshold, the front and rear images are displayed on the A-pillar display screen.
[0031] In some possible implementation manners, the step of if it is determined that the visibility is less than a preset visibility threshold, and the front and rear images are displayed on the A-pillar display screen specifically includes:
[0032] Determine the first visibility of the front windshield and the second visibility of the rearview mirror; if it is determined that the first visibility is less than a preset first visibility threshold, display the first image on the A-pillar display screen, and / or display the second image on the A-pillar display screen; if it is determined that the second visibility is less than the preset first visibility threshold, display the third image on the A-pillar display screen.
[0033] In some possible implementation manners, after displaying the front and rear images on the A-pillar display screen, it further includes:
[0034] Extract traffic participants in the first image, and / or the second image, and / or the third image, determine the movement trajectories of the traffic participants, generate a vehicle driving strategy based on the movement trajectories, and push the vehicle driving strategy to the driver; the vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
[0035] The beneficial effects of adopting the above embodiments are as follows: By measuring the temperature difference between the inside and outside of the vehicle and sensing the temperature difference between the inside and outside to determine whether fogging is likely to occur, if the temperature difference between the inside and outside is greater than a preset temperature difference threshold, the driver is prompted to turn on the A-pillar warm air supply module for warm air delivery to prevent fogging; by measuring the visibility at the front windshield and the rear windshield, it is determined whether there is a risk of affecting the field of vision at the front windshield and the rear windshield. When there is a risk of affecting the field of vision, the driver is reminded to turn on the front windshield fog cleaning module to quickly remove the fog, and traffic accidents caused by the affected field of vision are avoided as much as possible. Description of the Drawings
[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.
[0037] Figure 1 It is a schematic structural diagram of an embodiment of a window cold fog cleaning warning system based on a transparent A-pillar provided by the present invention;
[0038] Figure 2 It is a schematic structural diagram of an embodiment of a front windshield fog cleaning module provided by the present invention;
[0039] Figure 3 It is a schematic flow diagram of an embodiment of a window cold fog cleaning warning based on a transparent A-pillar provided by the present invention. Detailed Embodiments
[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.
[0041] Some of the block diagrams shown in the drawings are functional entities, which do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor systems and / or microcontroller systems.
[0042] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0043] Currently, during vehicle driving, especially in cold environments such as rainy days, cold and humid fog is likely to appear on the inner side of the front windshield of the car, affecting the driver's vision. Especially when driving on the highway, the driver's driving speed is fast and it is inconvenient to clean. The existing methods cannot display the defogging strategy in real time, and there is no effective method to deal with it when inconvenient-to-clean parts such as the rearview mirror are blocked by fog.
[0044] Therefore, the embodiments of the present invention provide a window cold fog cleaning and warning system and method based on a transparent A-pillar, which intelligently improves the defogging system, provides a real-time display of the defogging strategy and the rearview mirror vision blocked by fog for the driver, and further improves the safety during driving. The following will be described and introduced through multiple embodiments.
[0045] Figure 1 It is a schematic diagram of an embodiment of a window cold fog cleaning and warning system 100 based on a transparent A-pillar provided by the present invention. As Figure 1 shown, the window cold fog cleaning and warning system 100 based on a transparent A-pillar includes an induction module 120, an A-pillar warm air supply module 140, a front windshield fog cleaning module 130, and an intelligent management module 110;
[0046] The induction module 120 is used to sense the temperature difference inside and outside the vehicle in real time and detect the visibility of the front windshield and the rearview mirror in real time;
[0047] The A-pillar warm air supply module 140 is used to supply warm air to the front windshield along the side of the transparent A-pillar;
[0048] The front windshield fog cleaning module 130 is used to clean and defog the inner side of the front windshield.
[0049] The intelligent management module 110 is configured to, when it is determined that the temperature difference between the inside and the outside is greater than a preset temperature difference threshold, send a reminder to turn on the A-pillar heating air supply module 140, or turn on the A-pillar heating air supply module 140, or send a reminder to increase the air-conditioning power; when it is determined that the visibility is less than a preset visibility threshold, send a reminder to turn on the front windshield fog cleaning module 130, or turn on the front windshield fog cleaning module 130.
[0050] It can be understood that the temperature difference refers to the numerical difference in the temperature of an object. In this embodiment, the numerical difference in the temperature between the interior space of the vehicle and the external environment of the vehicle is mainly measured. Visibility represents the maximum ground horizontal distance at which a person with normal vision can still clearly see the target contour under the current weather conditions. The visibility value can be calculated by measuring the specific optical properties of the atmosphere using optical equipment; the front windshield refers to the front windshield of a vehicle. The reminder in this embodiment can be a voice reminder, or a reminder by image flashing or image display.
[0051] The reasons for the formation of fog on the window glass include: 1. Due to the temperature difference between the inside and the outside of the vehicle, the window is prone to fogging. The temperature of the window glass in contact with the outside is relatively low, and the water vapor inside the vehicle condenses on the glass to form fog; 2. The window temperature is lower than the dew point temperature. When the air humidity is constant, if the window temperature is lower than the dew point temperature, it is very easy to form condensation on the surface of the window, and fog will appear on the front windshield; 3. There is a certain temperature difference on both sides of the window. If the temperatures on both sides of the window are different, the saturated vapor pressure of the water on the surface of the side with the lower temperature is lower than the vapor pressure of the surrounding environment, and the water vapor will gather on the glass surface and seep out in the form of tiny water droplets to form fog.
[0052] From the above description, it can be seen that the temperature difference is the main factor causing the glass to fog. In this application, by measuring the temperature difference between the inside and the outside of the vehicle, it is determined whether there is a fogging risk based on the temperature difference between the inside and the outside, so as to supply heating in advance to prevent fogging. At the same time, considering that the defogging effect is poor and the fog cannot be cleared in time, by measuring the visibility, the driver is further reminded to turn on the front windshield fog cleaning module 130 to quickly clear the fog.
[0053] Compared with the prior art, the solution of this embodiment not only starts from the aspect of window fogging. By measuring the temperature difference between the inside and outside of the vehicle and sensing whether there may be a fogging phenomenon based on the temperature difference, if the temperature difference between the inside and outside is greater than the preset temperature difference threshold, the driver is prompted to turn on the A-pillar heating air supply module 140 for heating air delivery to prevent fogging. Further, it also considers the situation where the defogging effect is poor and the fog cannot be cleared in time. By measuring the visibility at the front view window and the rear view window, it is judged whether there is a risk of affecting the field of vision at the front view window. When there is a risk of affecting the field of vision, a reminder to turn on the front view window fog cleaning module 130 is sent to remind the driver to turn on the front view window fog cleaning module 130 to quickly clear the fog, and it is possible to avoid traffic accidents caused by the affected field of vision to the greatest extent. Compared with the prior art where only the inner side of the front view window can be defogged by warm air, in this embodiment, by setting the front view window fog cleaning module 130, the inner side of the front view window is actively cleaned and defogged, and the purpose of instant cleaning can be achieved.
[0054] Based on the above embodiment, as a preferred implementation manner, it further includes an image module 150, and the image module 150 is used to collect images of the front and rear of the vehicle and display them at a preset position inside the vehicle.
[0055] The intelligent management module 110 is further used to automatically turn on the image module 150 when it is judged that the visibility is less than the preset visibility threshold.
[0056] In this embodiment, by further setting the image module 150, the image module 150 is used when the visibility is low. During the defogging or fog sweeping process, there is a period of missing or unclear field of vision. In this case, the image module 150 collects the traffic flow and pedestrian flow information in the vehicle driving environment and displays the real-time scenes in front of and behind the vehicle to provide the driver with a field of vision.
[0057] Based on the above embodiment, as a preferred implementation manner, the image module 150 includes an outer A-pillar camera 151, a front view camera 152, a rear view camera 153, and an A-pillar display screen 154.
[0058] The outer A-pillar camera 151 is arranged on the outer side of the transparent A-pillar. The outer A-pillar camera 151 is used to collect the first image within a set angle range on the outer side of the transparent A-pillar. The front view camera 152 is arranged inside the front view window and is used to collect the second image of the road ahead of the vehicle.
[0059] The rear view camera 153 is installed at the edge of the rearview mirror. The rear view camera 153 is used to collect the third image of the road behind the vehicle.
[0060] The A-pillar display screen 154 is disposed inside the transparent A-pillar and is used to display the first image, and / or, the second image, and / or, the third image.
[0061] In this embodiment, in order to ensure that the camera can provide the driver with a full-range visual reference of the vehicle surroundings, in addition to setting a front-view camera 152 on the front windshield for collecting images of the vehicle side, A-pillar outer cameras 151 are set on the transparent A-pillars on both sides for collecting images within a set range outside the transparent A-pillars, and rear-view cameras 153 are set at the rear-view mirrors on both sides for collecting images of the rear of the vehicle. The traffic flow information in front is collected through the A-pillar outer cameras 151 and the front-view camera 152, etc., and strategies such as calculating the reasonable driving speed of the vehicle are combined with the visible degree collected above; the visible degree that changes dynamically, the reasonable driving speed and driving strategies are displayed in a partial area of the A-pillar display screen 154; the visible degree is sensed through the rear-view mirror sensor. If the visible degree of the rear-view mirror is lower than a certain threshold, the road view in the direction of the rear-view mirror is temporarily displayed on the A-pillar display screen 154. The A-pillar display screen 154 is also used to display warning information, the calculated reasonable driving speed and driving strategies, and the image of the rear of the vehicle, etc.
[0062] On the basis of the above embodiment, as a preferred implementation manner, the intelligent management module 110 includes a cold fog cleaning warning unit and an image guiding unit;
[0063] The cold fog cleaning warning unit is used for determining that fogging occurs when it is judged that the temperature difference between the inside and the outside is greater than a preset temperature difference threshold, and sending a reminder to turn on the A-pillar heating air supply module 140, or, turning on the A-pillar heating air supply module; to remind the driver to turn on the A-pillar heating air supply module 140, or, to remind the driver to increase the air conditioner power; the cold fog cleaning warning unit is also used for automatically turning on the image module 150 when it is judged that the visibility is less than a preset first visibility threshold, and specifically includes:
[0064] Determining the first visibility of the front windshield and the second visibility of the rear-view mirror; if it is judged that the first visibility is less than the preset first visibility threshold, the A-pillar heating air supply module 140 is enabled at a set power, and the first image is displayed on the A-pillar display screen 154, and / or, the second image is displayed on the A-pillar display screen 154; if it is judged that the second visibility is less than the preset first visibility threshold, the third image is displayed on the A-pillar display screen 154 to display the rear view.
[0065] The cold fog cleaning warning unit is also used to determine that the visibility has dropped below the danger value when it judges that the first visibility is less than the preset second visibility threshold, and then activate the front window fog cleaning module 130 to perform an active fog cleaning operation on the inner side of the front window for rapid defogging. If it is not lower than the danger value (the second visibility threshold), the A-pillar heating air supply module 140 will continue to be enabled at the set power.
[0066] The image guidance unit is used to extract traffic participants in the front and rear images, analyze the movement trajectories of the traffic participants, generate a vehicle driving strategy based on the movement trajectories, and push the vehicle driving strategy to the driver; the vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
[0067] On the basis of the above embodiments, as a preferred implementation manner, the sensing module 120 includes a humidity sensor 121, an optical sensor 123, and a temperature sensor 122;
[0068] The temperature sensor 122 includes a first temperature sensor disposed inside the front window and a second temperature sensor disposed outside the front window; by installing a temperature sensor on both the inner and outer sides of the front window, the possible fogging phenomenon can be warned through the temperature difference between the inside and outside. The first temperature sensor and the second temperature sensor can be respectively set on the inner and outer sides of the automotive glass and are arranged at a gap with the automotive glass to facilitate the collection of the real-time temperatures inside and outside the vehicle.
[0069] The humidity sensor 121 includes a first humidity sensor disposed inside the front window and a second humidity sensor disposed inside the rearview mirror; the humidity sensor 121 is used to detect the amount of water mist at the front window and the rearview mirror.
[0070] The optical sensor 123 includes a first optical sensor disposed inside the front window and a second optical sensor disposed inside the rearview mirror. The optical sensor is used to detect the light intensity at the front window and the rearview mirror; based on the amount of water mist and the corresponding light intensity, the visibility at the front window and the rearview mirror is comprehensively judged.
[0071] Based on the above embodiments, as a preferred implementation manner, the A-pillar heating air supply module 140 includes an inner A-pillar heating air supply unit 141 and a first interior trim panel mounting groove 142. The first interior trim panel mounting groove 141 is provided on one side of the transparent A-pillar 160. The inner A-pillar heating air supply unit 141 is mounted on the transparent A-pillar 160 through the first interior trim panel mounting groove 142. The inner A-pillar heating air supply unit 141 is used to supply warm air to the front windshield along one side of the transparent A-pillar 160. By providing a plurality of air outlets along the edge of the transparent A-pillar 160, the inner A-pillar heating air supply units 141 on both sides of the transparent A-pillar 160 simultaneously supply warm air to the front windshield, thereby improving the efficiency of fog clearing.
[0072] Based on the above embodiments, as a preferred implementation manner, as Figure 2 shown in, the front windshield fog cleaning module 130 includes an inner A-pillar cleaning unit 131 and a second interior trim panel mounting groove 132;
[0073] The second interior trim panel mounting groove 132 is provided on one side of the transparent A-pillar;
[0074] The inner A-pillar cleaning unit 131 includes a cleaning arm and a rubber strip. The rubber strip is provided on the side of the cleaning arm. One end of the cleaning arm is rotatably mounted in the second interior trim panel mounting groove 132. The rubber strip on the side of the cleaning arm is in contact with the inner surface of the front windshield.
[0075] In this embodiment, the front windshield fog cleaning module 130 is a device similar to a windshield wiper. By actively cleaning the front windshield inside, the rubber strip is used to scrape the inner surface of the front windshield to quickly remove the fog.
[0076] Please refer to Figure 3 , an embodiment of the present invention provides a method for cleaning and warning of cold fog on a vehicle window based on a transparent A-pillar according to the above-described embodiment of the vehicle window cold fog cleaning and warning system based on a transparent A-pillar, including:
[0077] Extracting the temperature difference between the inside and outside and the visibility; the visibility includes a first visibility of the front windshield and a second visibility of the rearview mirror; wherein, the temperature difference between the inside and outside can be obtained by temperature sensors provided on the inner and outer sides of the front windshield.
[0078] Judging whether fogging is likely to occur through the temperature sensors inside and outside the vehicle window; if so, prompting the driver on the A-pillar screen to increase the power of the in-vehicle air conditioner and turn on the heating device inside the A-pillar to prevent fogging; specifically including:
[0079] If it is determined that the temperature difference between the inside and outside is greater than the preset temperature difference threshold α, then a fogging warning is issued, and a reminder to turn on the A-pillar heating air supply module 140 is sent to remind the driver to turn on the A-pillar heating air supply module 140, or a reminder to increase the air-conditioning power is sent to remind the driver to increase the air-conditioning power, or the A-pillar heating air supply module 140 is directly turned on.
[0080] If it is determined that the visibility is less than the preset visibility threshold, then the front and rear images are displayed on the A-pillar display screen 154, specifically including:
[0081] Determine the first visibility of the front windshield and the second visibility of the rearview mirror; if it is determined that the first visibility is less than the preset first visibility threshold β, then the A-pillar heating air supply module 140 is enabled at the set power, and the first image is displayed on the A-pillar display screen 154, and / or the second image is displayed on the A-pillar display screen 154; if it is determined that the second visibility is less than the preset first visibility threshold β, then the third image is displayed on the A-pillar display screen 154 to display the rear view.
[0082] When it is determined that the first visibility is less than the preset second visibility threshold γ, it is determined that the visibility has dropped below the danger value, and the front windshield fog cleaning module 130 is activated to perform an active fog cleaning operation on the inner side of the front windshield for rapid defogging. If it is not lower than this danger value (the second visibility threshold γ), then the A-pillar heating air supply module 140 is continuously enabled at the set power.
[0083] On the basis of the above embodiments, as a preferred implementation manner, after the front and rear images are displayed on the A-pillar display screen 154, it further includes:
[0084] Extract traffic participants in the first image, and / or the second image, and / or the third image, determine the movement trajectories of the traffic participants, generate a vehicle driving strategy based on the movement trajectories, and push the vehicle driving strategy to the driver; the vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
[0085] Those skilled in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program, and the computer program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a disk, an optical disc, a read-only memory, or a random access memory, etc.
[0086] The above has introduced in detail a window cold fog cleaning and warning system and method based on a transparent A-pillar. In this article, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.
Claims
1. A window cold fog cleaning warning system based on a transparent A-pillar, characterized in that, It includes an induction module, an A-pillar heating air supply module, a front windshield fog cleaning module, an intelligent management module, and an image module; The induction module is used to sense the internal and external temperature difference of the vehicle in real time and detect the visibility of the front windshield and the rearview mirror in real time; The A-pillar heating air supply module is used to supply warm air to the front windshield along the side of the transparent A-pillar. The A-pillar heating air supply module includes an inner A-pillar heating air supply unit and a first interior trim panel mounting groove. The first interior trim panel mounting groove is provided on one side of the transparent A-pillar. The inner A-pillar heating air supply unit is installed on the transparent A-pillar through the first interior trim panel mounting groove. The inner A-pillar heating air supply unit is used to supply warm air to the front windshield along one side of the transparent A-pillar; The front windshield fog cleaning module is used to clean and defog the inner side of the front windshield. The front windshield fog cleaning module includes an inner A-pillar cleaning unit and a second interior trim panel mounting groove; the second interior trim panel mounting groove is provided on one side of the transparent A-pillar; the inner A-pillar cleaning unit includes a cleaning arm and a rubber strip. The rubber strip is provided on the side of the cleaning arm. One end of the cleaning arm is rotatably installed in the second interior trim panel mounting groove. The rubber strip on the side of the cleaning arm is in contact with the inner side of the front windshield; The image module is used to collect the front and rear images of the vehicle and display them at a preset position inside the vehicle. The image module includes an outer A-pillar camera, a front camera, a rear camera, and an A-pillar display screen; the outer A-pillar camera is provided on the outer side of the transparent A-pillar. The outer A-pillar camera is used to collect a first image within a set angle range outside the transparent A-pillar. The front camera is provided inside the front windshield and is used to collect a second image of the road ahead of the vehicle; the rear camera is installed at the edge of the rearview mirror. The rear camera is used to collect a third image of the road behind the vehicle; the A-pillar display screen is provided on the inner side of the transparent A-pillar and is used to display the first image, and / or, display the second image, and / or, display the third image; The intelligent management module is used to send a reminder to turn on the A-pillar heating air supply module, or turn on the A-pillar heating air supply module when it is determined that the internal and external temperature difference is greater than a preset temperature difference threshold; send a reminder to turn on the front windshield fog cleaning module, or turn on the front windshield fog cleaning module when it is determined that the visibility is less than a preset visibility threshold; automatically turn on the image module when it is determined that the visibility is less than a preset visibility threshold.
2. The window cold fog cleaning warning system based on a transparent A-pillar according to claim 1, wherein The intelligent management module includes a cold fog cleaning warning unit and an image guiding unit; The cold fog cleaning warning unit is used to determine that fog appears when it is determined that the internal and external temperature difference is greater than a preset temperature difference threshold, send a reminder to turn on the A-pillar heating air supply module, or send a reminder to increase the air conditioner power, or turn on the A-pillar heating air supply module; the cold fog cleaning warning unit is also used to automatically turn on the image module when it is determined that the visibility is less than a preset first visibility threshold, and start the front windshield fog cleaning module when it is determined that the first visibility is less than a preset second visibility threshold; The image guidance unit is used to extract traffic participants in the front and rear images, analyze the movement trajectories of the traffic participants, generate a vehicle driving strategy based on the movement trajectories, and push the vehicle driving strategy to the driver; The vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
3. The window cold fog cleaning warning system based on a transparent A-pillar according to claim 1, characterized in that, The sensing module includes a humidity sensor, an optical sensor, and a temperature sensor; The temperature sensor includes a first temperature sensor disposed inside the front windshield and a second temperature sensor disposed outside the front windshield; The humidity sensor includes a first humidity sensor disposed inside the front windshield and a second humidity sensor disposed inside the rearview mirror; The optical sensor includes a first optical sensor disposed inside the front windshield and a second optical sensor disposed inside the rearview mirror.
4. A method for warning of window cold fog cleaning based on a transparent A-pillar of a window cold fog cleaning warning system based on a transparent A-pillar according to any one of claims 1 to 3, characterized in that, It includes: Extracting the internal and external temperature difference and the visibility; If it is determined that the internal and external temperature difference is greater than a preset temperature difference threshold, then a fog warning is issued, a reminder to turn on the A-pillar heating air supply module is sent, or a reminder to increase the air conditioner power is sent, or the A-pillar heating air supply module is turned on; If it is determined that the visibility is less than a preset visibility threshold, then the front and rear images are displayed on the A-pillar display screen.
5. The window cold fog cleaning warning method based on a transparent A-pillar according to claim 4, wherein, The step of if it is determined that the visibility is less than a preset visibility threshold, then the front and rear images are displayed on the A-pillar display screen specifically includes: Determining the first visibility of the front windshield and the second visibility of the rearview mirror; if it is determined that the first visibility is less than a preset first visibility threshold, then the first image is displayed on the A-pillar display screen, and / or the second image is displayed on the A-pillar display screen; if it is determined that the second visibility is less than the preset first visibility threshold, then the third image is displayed on the A-pillar display screen.
6. The window cold fog cleaning warning method based on a transparent A-pillar according to claim 4, characterized in that After the front and rear images are displayed on the A-pillar display screen, it further includes: Extracting traffic participants in the first image, and / or the second image, and / or the third image, determining the movement trajectories of the traffic participants, generating a vehicle driving strategy based on the movement trajectories, and pushing the vehicle driving strategy to the driver; the vehicle driving strategy includes one or more of the following: driving speed suggestion, driving lane suggestion, and lane change warning.
Citation Information
Patent Citations
Defogging method, system and device for front-view camera, equipment and vehicle
CN111746468A
Automobile and demisting method and device thereof
CN111791834A