Intelligent sunroof drainage system, automobile and intelligent sunroof drainage control method

Abstract

The present application relates to a kind of intelligent sunroof drainage systems to solve the technical problems of the prior art, such as mechanical stirring structure, which is used to stir and crush impurities, and the risk of drainage pipe blockage, and the insufficient stability of itself, comprising: a sunroof drainage channel having a drain, a drain pipe including an upper section pipe body, a lower section pipe body and a three-way electromagnetic valve, one end of the upper section pipe body is connected to the drain, the three-way electromagnetic valve is provided with a water level sensor, the other end of the upper section pipe body and the lower section pipe body are respectively connected to the first valve port and the second valve port of the three-way electromagnetic valve;Air blowing device, connected to the third valve port of the three-way electromagnetic valve, for blowing air into the three-way electromagnetic valve;Intelligent control system, according to the water level information of the water level sensor, control the opening and closing of the valve port of the three-way electromagnetic valve and the start and stop of the air blowing device, the present application also provides a car with the above-mentioned intelligent sunroof drainage system and an intelligent sunroof drainage control method for the above-mentioned car.

Description

Technical Field

[0001] This invention relates to sunroof drainage systems, specifically to an intelligent sunroof drainage system, a car, and an intelligent sunroof drainage control method. Background Technology

[0002] Existing car sunroof drainage systems are all passive drainage systems. When small particles such as dead leaves, insects, dust, and sand enter the sunroof drainage system, they accumulate or even block the sunroof drain outlet or drain pipe, causing poor drainage or blockage, which leads to water leaking into the passenger compartment.

[0003] The utility model disclosed in CN214240390U is a drainage structure for a car sunroof. It adopts a stepped design of water channel and chute, which makes it easy for water in the chute to fall into the water channel for collection. The unblocking mechanism can prevent impurities in the water from clogging the connection when the water in the chute flows to the connecting pipe. The stirring rod can crush and discharge large particles of impurities, and the scraper and saw teeth can scrape off and discharge small particles of impurities that are attached and accumulated, ensuring the smoothness of the drainage structure and the drainage effect is good. However, the above technical solution uses a physical structure to screen and crush impurities, which has low controllability. There is still a risk of the drainage pipe being blocked after large materials are crushed. The stability and assembly feasibility of the mechanical structure itself are questionable, and the feasibility of practical application is low. It cannot completely and effectively prevent sunroof leakage and water ingress. Summary of the Invention

[0004] Based on the above description, the present invention provides an intelligent sunroof drainage system to solve the technical problems of existing technologies that use mechanical stirring structures to break up impurities, which pose a high risk of clogging the drainage pipes and have insufficient stability.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0006] An intelligent skylight drainage system, comprising:

[0007] The skylight drainage channel has a drainage outlet, and a first water level sensor is installed at a predetermined height above the drainage outlet.

[0008] A drain pipe includes an upper pipe section, a lower pipe section, and a three-way solenoid valve. One end of the upper pipe section is connected to the drain outlet. The three-way solenoid valve is equipped with a second water level sensor. The other end of the upper pipe section and the lower pipe section are respectively connected to the first valve port and the second valve port of the three-way solenoid valve.

[0009] A blower device is connected to the third valve port of the three-way solenoid valve and is used to blow air into the three-way solenoid valve.

[0010] The intelligent control system controls the opening and closing of the three-way solenoid valve and the start and stop of the blower based on the water level information from the first and second water level sensors.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0012] The intelligent sunroof drainage system provided in this application can drain water quickly and efficiently. When the water level sensor detects water accumulation at the position of the three-way solenoid valve, the intelligent control system controls the start of the blower and the opening and closing of the three-way solenoid valve, so that a defined unblocking channel is formed inside the drain pipe. This allows the blower to blow air towards the blockage in the drain pipe, thus clearing the pipe. The device has a simple structure, good adaptability, improves the user's driving experience, and avoids property damage caused by water entering the sunroof and subsequent difficulties in unblocking the drain pipe.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the intelligent control system includes a signal receiving module and an instruction sending module. The signal receiving module is used to receive water level information from the first water level sensor and the second water level sensor. The instruction sending module is used to send start / stop instructions to the blower and valve opening / closing instructions to the three-way solenoid valve.

[0015] Furthermore, the drainage system has a drainage mode and two cleaning modes. In drainage mode, the first and second valve ports are open, the third valve port is closed, and the blower stops working. The two cleaning modes are an upper cleaning mode and a lower cleaning mode. In upper cleaning mode, the first and third valve ports are open, the second valve port is closed, and the blower starts. In lower cleaning mode, the second and third valve ports are open, the first valve port is closed, and the blower starts.

[0016] Furthermore, the blower device includes a blower, a waterproof and breathable membrane, and a pressure sensor. The waterproof and breathable membrane is disposed at the air outlet of the blower, and the pressure sensor is disposed at the air outlet to detect the air pressure at the air outlet.

[0017] Furthermore, the intelligent control system also includes an active cleaning module, which is used to control the opening and closing of the three-way solenoid valve and the start and stop of the blower according to the pollution index. The active cleaning module includes a rainwater detection unit, a timing unit and a pollution index calculation unit. The rainwater detection unit is used to detect whether the drainage system is exposed to rainy weather environment. The timing unit is used to determine the number of days the drainage system has been in use. The pollution index calculation unit is used to calculate the current pollution index of the drainage pipe and preset a pollution index threshold.

[0018] The pollution index is obtained by accumulating the environmental pollution coefficients of each day within the time period of the usage days. The environmental pollution coefficient is an initial preset value determined based on the environment in which the drainage system is located. When the pollution index reaches the pollution index threshold and the drainage system is not exposed to rainy weather, the intelligent control system controls the drainage system to enter the cleaning mode. After the cleaning is completed, the pollution index is reset to 0.

[0019] Furthermore, the active cleaning module also includes an air humidity meter and a dust detector. The air humidity meter is used to detect the air humidity of the environment in which the drainage system is located, and the dust detector is used to detect the dust level of the environment in which the drainage system is located. The initial preset value is determined by the air humidity and the dust level.

[0020] Furthermore, the intelligent control system also includes a passive control module, which can control the opening and closing of the three-way solenoid valve and the start and stop of the blower according to the input control signal.

[0021] This application also provides a car having the intelligent sunroof drainage system described above, wherein the intelligent control system is installed on the car and integrated into the car control system.

[0022] This application also provides an intelligent skylight drainage control method.

[0023] This includes proactive cleanup control, emergency cleanup control, and reactive cleanup control;

[0024] The active cleaning control includes: when the drain pipe is detected to have reached the cleaning condition, obtaining the rainwater exposure information of the intelligent sunroof drainage system; if it is not exposed to rainy weather, executing the predetermined cleaning steps; and after cleaning is completed.

[0025] The emergency cleaning control includes: upon receiving water level information transmitted by the first water level sensor or the second water level sensor, executing a predetermined upper-stage cleaning step.

[0026] The passive cleaning control includes: executing predetermined cleaning steps when receiving control information sent by the passive control module;

[0027] The cleaning steps include:

[0028] S1 controls the intelligent sunroof drainage system to switch from drainage mode to lower cleaning mode and detects air pressure changes at the air outlet.

[0029] S2, if the air pressure at the air outlet rises, continue blowing until the air pressure drops and stabilizes to the predetermined range, continue blowing for the predetermined time, and then switch to the upper cleaning mode; if the air pressure at the air outlet remains unchanged, switch directly to the upper cleaning mode.

[0030] S3, continue blowing until the air pressure drops and stabilizes within the predetermined range, then continue blowing for the predetermined time to switch to drainage mode.

[0031] Furthermore, the condition for the drainage pipe to reach the cleaning condition is that the pollution index reaches a preset pollution index threshold. The pollution index is obtained by accumulating the environmental pollution coefficients of each day within the time period of the number of days of use. The environmental pollution coefficient is an initial preset value determined based on the environment in which the drainage system is located. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an intelligent skylight drainage system provided in an embodiment of the present invention;

[0033] Figure 2 This is a top view of an intelligent skylight drainage system provided in an embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the installation of the water level sensor in an embodiment of the present invention;

[0035] Figure 4 This is a control logic block diagram of the intelligent control system in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the cleaning step in an embodiment of the present invention;

[0037] Figure 6 This is a structural block diagram of the intelligent control system in an embodiment of the present invention. Detailed Implementation

[0038] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0040] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90° or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0041] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0042] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0043] like Figure 1-5 As shown, this application embodiment provides an intelligent sunroof drainage system, which includes a hardware part and a software part. The hardware part is the execution structure of the drainage system, including a sunroof drainage channel 10, a drainage pipe 20 and a blower 30; the software part is an intelligent control system 40 that controls the above-mentioned hardware part.

[0044] Specifically, the sunroof drainage channel 10 is generally located at the edge of the sunroof on the top of the car. It is used to install and support the sunroof components. In this embodiment, the sunroof drainage channel 10 has a drain outlet 11, which provides an outlet for the system's drainage. In rainy or snowy weather, water accumulated on the sunroof enters the drainage pipe through the drain outlet and is quickly and effectively drained. It can be understood that, according to the direction of water flow, the drain outlet 11 is generally located at the lowest point on the sunroof drainage channel 10. A first water level sensor 241 is installed at a predetermined height above the drain outlet 11. In this application, it is preferably located at 1 / 3 to 1 / 2 of the height of the sunroof drainage channel 10, so that water accumulation in the sunroof drainage channel 10 can be detected in a timely manner.

[0045] The drain pipe 20 is used for drainage of the skylight. It includes an upper pipe body 21, a lower pipe body 22, and a three-way solenoid valve 23. One end of the upper pipe body 21 is connected to the drain outlet. The three-way solenoid valve 23 is connected to the second water level sensor 242. The other end of the upper pipe body 21 and the lower pipe body 22 are respectively connected to the first valve port 231 and the second valve port 232 of the three-way solenoid valve 23.

[0046] The blower device 30 is connected to the third valve port 233 of the three-way solenoid valve 23 and is used to blow air into the three-way solenoid valve 23.

[0047] The intelligent control system 40 controls the opening and closing of the valve port of the three-way solenoid valve 23 and the start and stop of the blower 30 based on the water level information of the first water level sensor 241 and the second water level sensor 242.

[0048] By opening and closing the valve port of the three-way solenoid valve 23, different drainage paths can be formed inside the drain pipe 20. In conjunction with the blower device 30, compressed air is injected into the three-way solenoid valve 23 to increase the pressure and flow rate in the drain pipe, helping rainwater to drain more efficiently and quickly. This device has a simple structure, good adaptability to emergency situations, improves the user's driving experience, and avoids property damage caused by water entering the sunroof and subsequent difficulties in unclogging the drain pipe.

[0049] Specifically, the intelligent control system 40 includes a signal receiving module 41 and an instruction sending module 42. The signal receiving module 41 is used to receive water level information from the first water level sensor 241 and the second water level sensor 242. The instruction sending module 42 is used to send start and stop instructions to the blower 30 and valve opening and closing instructions to the three-way solenoid valve 23.

[0050] In the embodiments of this application, the blower device 30 includes a blower 31, a waterproof and breathable membrane 32, and a pressure sensor. The waterproof and breathable membrane 32 is disposed at the air outlet of the blower 31. The blower 31 is used to inject compressed air into the three-way solenoid valve 23. The waterproof and breathable membrane 32 is used to prevent water from flowing back into the blower 31, thus protecting the blower 31. The pressure sensor is disposed at the air outlet and is used to detect the air pressure at the air outlet.

[0051] The drainage system has a drainage mode and two cleaning modes. When it is in drainage mode, the first valve port 231 and the second valve port 232 of the three-way solenoid valve 23 are open, and the third valve port 233 is closed. At this time, the upper pipe 21 and the lower pipe 22 form a drainage channel, the blower 30 stops working, and the drain pipe 20 drains normally. This is also the initial mode of the drainage system.

[0052] The two cleaning modes are the upper section cleaning mode and the lower section cleaning mode. When it is in the upper section cleaning mode, the first valve port 231 and the third valve port 233 are open, the second valve port 232 is closed, and the blower 30 is started. At this time, the accumulated water cannot reach the lower section pipe 22. The blower 31 and the upper section pipe 21 form a drainage channel. Compressed air blows the accumulated water and debris in the upper section pipe 21 out of the drain port 11 to clear the blockage of the first valve port 231 and the upper section pipe 21.

[0053] When it is in the lower section cleaning mode, the second valve port 232 and the third valve port 233 are opened, the first valve port 231 is closed, and the blower 30 is started. At this time, the blower 31 and the lower section pipe 22 form a drainage channel. Compressed air blows the accumulated water and debris in the lower section pipe 22 out of the drain port 11 to clear the blockage of the second valve port 232 and the lower section pipe 22.

[0054] In practical use, the intelligent control system 40 may also include an alarm module, which is configured to sound an alarm when the water level sensor detects water accumulation, using sound or light to provide a warning.

[0055] It is understandable that, since there is a certain step difference between the first water level sensor 241 and the second water level sensor 242, when either the first water level sensor 241 or the second water level sensor 242 senses the water level, it indicates that there is a blockage in the drain pipe 20.

[0056] Based on the difference in water level information between the first water level sensor 241 and the second water level sensor 242, the following situations can be identified:

[0057] When the first water level sensor 241 senses the water level but the second water level sensor 242 does not sense it, there are two possibilities: (1) only the upper section of the pipe 21 is blocked and the lower section of the pipe 22 has no water accumulation; (2) both the upper section of the pipe 21 and the lower section of the pipe 22 are blocked, but the water level in the lower section of the pipe 22 is lower than that of the second water level sensor 242.

[0058] When the first water level sensor 241 senses the water level and the second water level sensor 242 also senses the water level, there are two possibilities: (1) only the lower section of the pipe 22 is blocked, and the water level is not lower than the first water level sensor 241; (3) both the upper section of the pipe 21 and the lower section of the pipe 22 are blocked, and the water level in the lower section of the pipe 22 is not lower than the second water level sensor 242.

[0059] When the first water level sensor 241 does not detect the water level, but the second water level sensor 242 does, it indicates that the lower section of the pipe 22 is blocked.

[0060] It can be seen that regardless of the water level sensing conditions, the lower section of the pipe 22 is likely to be blocked. Therefore, in this application, the cleaning logic of first clearing the lower section of the pipe 22 and then clearing the upper section of the pipe 21 is adopted to achieve pipe cleaning.

[0061] To better understand the control process and usage principle of the embodiments of this application, the cleaning steps of the above-mentioned intelligent sunroof drainage system are described below:

[0062] First, the drainage system is in normal drainage mode. At this time, the first valve port 231 and the second valve port 232 are open, the third valve port 233 is closed, and the blower 31 is in standby mode.

[0063] When any sensor detects the water level, it indicates that there is a blockage inside the drain pipe 20 and it needs to be cleaned. First, the drainage system switches from the drainage state to the lower section cleaning mode. The valve port state is switched so that the second valve port 232 and the third valve port 233 are open and the first valve port 231 is closed. After the switch is completed, the blower 31 is started and compressed air is blown out of the lower section pipe 22.

[0064] If the lower section of the tube 22 is blocked at this time, the air pressure detected by the air pressure sensor will increase, and then air will continue to be blown until the blockage in the lower section is cleared. The air pressure detected by the air pressure sensor will rise to its peak the moment the blockage in the lower section is cleared, and then fall back. After blowing for a predetermined time (e.g., 5 seconds), the air pressure will remain stable, and then the system will switch to the upper section cleaning mode. If the lower section of the tube 22 is not blocked at this time, the air pressure of the air pressure sensor will remain unchanged, and the system will directly switch to the upper section cleaning mode. The upper section cleaning process is similar to the lower section cleaning process and will not be described in detail here.

[0065] Understandably, the patency of the pipeline is monitored in real time by a pressure sensor. When the pipeline pressure is greater than the stable pressure, it means that the blockage has not been cleared. When the pipeline pressure returns to the stable pressure, it means that the blockage has been cleared. Continuous blowing for a predetermined time can completely clear the pipeline.

[0066] Based on the above drainage system structure, the embodiments of this application also provide the following better solution: in the above drainage system, the cleaning mode is only activated after an emergency occurs in the water level. In order to reduce the occurrence of emergency situations, an active cleaning method can be introduced.

[0067] Preferably, the intelligent control system 40 also includes an active cleaning module 43, which is used to control the opening and closing of the three-way solenoid valve 23 and the start and stop of the blower 31 according to the pollution index.

[0068] Specifically, the active cleaning module 43 includes a rainwater detection unit 431, a timing unit 432, and a pollution index calculation unit 433. The rainwater detection unit 431 is used to detect whether the drainage system is exposed to rainy weather conditions. The timing unit 432 is used to determine the number of days n of the drainage system in use. The pollution index calculation unit 433 is used to calculate the current pollution index k of the drainage pipe and preset a pollution index threshold K0.

[0069] The pollution index k is obtained by accumulating the environmental pollution coefficient p of each day within the time period of the usage days n. The environmental pollution coefficient p is an initial preset value determined based on the environment in which the drainage system is located. When the pollution index k reaches the pollution index threshold K0 and the drainage system is not exposed to rainy weather, the intelligent control system 40 controls the drainage system to enter the cleaning mode. After the cleaning is completed, the usage days n is reset to zero. The pollution index is determined based on the environmental pollution coefficient and the usage days, realizing the active cleaning of the drainage system based on the usage environment and usage time. The addition of the environmental input of exposure to rainy weather can avoid the risk of water entering the blower 31 pipeline when the skylight is drained in rainy weather.

[0070] The active cleaning module 43 also includes an air humidity meter 434 and a dust detector 435. The air humidity meter 434 is used to detect the air humidity of the environment where the drainage system is located, and the dust detector 435 is used to detect the dust level of the environment where the drainage system is located. The initial preset value is determined by the air humidity and the dust level.

[0071] In one optional embodiment, the pollution index threshold K0 is 1. When the detected air humidity and dust level are low, the environmental pollution coefficient p = 1 / 30; when the detected air humidity and dust level are medium, the environmental pollution coefficient p = 2 / 30; and when the detected air humidity and dust level are high, the environmental pollution coefficient p = 3 / 30.

[0072] Let p1 represent the environmental pollution coefficient on the first day of use and pn represent the environmental pollution coefficient on the nth day of use. Then we have: k = p1 + p2 + ... + pn. When the value of k reaches 1, the intelligent control system 40 controls the drainage system to enter the cleaning mode. After the cleaning is completed, the pollution index is reset to 0.

[0073] In some usage scenarios, such as when the system has not been used for a long time or when the environment is very dusty, it may be necessary to clean the drain pipe in time to prevent it from becoming clogged. Therefore, in the embodiments of this application, the intelligent control system also includes a passive control module, which can control the opening and closing of the valve port of the three-way solenoid valve 23 and the start and stop of the blower 30 according to the input control signal.

[0074] It is understood that the intelligent control system of this application also includes a memory 45, a processor 46, and is connected to a display 47. In some embodiments, the memory may be an internal storage unit of the electronic device, such as a hard drive or RAM. In other embodiments, the memory may be an external storage device, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card. Furthermore, the memory 45 may include both internal and external storage units. The memory 45 is used to store application software and various types of data installed on the electronic device, such as the program code of the electronic device. The memory 45 can also be used to temporarily store data that has been output or will be output, such as air humidity, dust level, corresponding environmental pollution coefficient, number of days used, pollution index, water level threshold information, and rain exposure information in the embodiments of this application.

[0075] In some embodiments, processor 46 may be a central processing unit (CPU), microprocessor or other data processing chip, used to run program code stored in memory 45 or process data, such as performing foreign object detection methods.

[0076] In some embodiments, the display 47 may be an LED display, a liquid crystal display, a touch liquid crystal display, or an OLED (Organic Light-Emitting Diode) touch device. In this application, the display 47 is preferably a central control display screen of an automobile and is part of the passive control module.

[0077] This application also provides a car with the above-mentioned drainage system, wherein, for ease of operation, its intelligent control system 40 is installed on the car and integrated into the car control system.

[0078] For vehicles equipped with this drainage system, this application also proposes an intelligent sunroof drainage control method, which includes three control logics: active cleaning control, emergency cleaning control, and passive cleaning control.

[0079] Specifically, the proactive cleaning control includes: when the drain pipe is detected to have reached the cleaning condition, obtaining the rainwater exposure information of the intelligent sunroof drainage system; if it is not exposed to rainy weather, executing the predetermined cleaning steps.

[0080] The emergency cleaning control includes: upon receiving water level information transmitted by the first water level sensor or the second water level sensor, executing a predetermined upper-stage cleaning step.

[0081] The passive cleanup control includes: executing predetermined cleanup steps when receiving control information sent by the passive control module.

[0082] The planned cleaning steps include:

[0083] S1 controls the intelligent sunroof drainage system to switch from drainage mode to lower cleaning mode and detects air pressure changes at the air outlet.

[0084] S2, if the air pressure at the air outlet rises, continue blowing until the air pressure drops and stabilizes to the predetermined range, continue blowing for the predetermined time, and then switch to the upper cleaning mode; if the air pressure at the air outlet remains unchanged, switch directly to the upper cleaning mode.

[0085] S3, continue blowing until the air pressure drops and stabilizes within the predetermined range, then continue blowing for the predetermined time to switch to drainage mode.

[0086] The condition for the drainage pipe to reach the cleaning condition is that the pollution index reaches a preset pollution index threshold. The pollution index is obtained by accumulating the environmental pollution coefficient of each day within the time period of the number of days of use. The environmental pollution coefficient is an initial preset value determined based on the environment in which the drainage system is located.

[0087] The control principle described above has already been explained in detail in the description of the sunroof drainage system, and will not be repeated here.

[0088] The control logic principles of the three control logics are as follows: Figure 3 As shown, the vehicle's drainage system achieves active cleaning control, emergency cleaning control, and passive cleaning control.

[0089] The beneficial effects of the embodiments of the present invention include, but are not limited to:

[0090] 1. To make the current mainstream passive drainage system of sunroof intelligent, realize the pre-cleaning and self-draining of the drainage system, enhance the sense of technology and permanently maintain the drainage efficiency without decline;

[0091] 2. Resolves sunroof leakage and water ingress issues caused by blockages, improving the user's driving experience;

[0092] 3. Currently, water damage to the interior of most vehicles often leads to clogged drain pipes, which are only discovered after the interior has been flooded. Proactive cleaning and unclogging are crucial to prevent such incidents and avoid potential damage.

[0093] 4. Solve the problem of difficulty in unblocking sunroof drain pipes after they become clogged;

[0094] 5. It provides a completely new intelligent active cleaning system that is different from those currently on the market.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent skylight drainage system, characterized in that, include: The skylight drainage channel has a drainage outlet, and a first water level sensor is installed at a predetermined height above the drainage outlet, specifically at 1 / 3 to 1 / 2 of the height of the skylight drainage channel; A drain pipe includes an upper pipe section, a lower pipe section, and a three-way solenoid valve. One end of the upper pipe section is connected to the drain outlet. A second water level sensor is installed at the bottom of the three-way solenoid valve. The other end of the upper pipe section and the lower pipe section are respectively connected to the first valve port and the second valve port of the three-way solenoid valve. A blower device is connected to the third valve port of the three-way solenoid valve and is used to blow air into the three-way solenoid valve. The intelligent control system controls the opening and closing of the three-way solenoid valve and the start and stop of the blower based on the water level information from the first water level sensor and the second water level sensor. There is a certain step difference between the first water level sensor and the second water level sensor; The intelligent control system includes a signal receiving module and an instruction sending module. The signal receiving module is used to receive water level information from the first water level sensor and the second water level sensor. The instruction sending module is used to send start and stop instructions to the blower and valve opening and closing instructions to the three-way solenoid valve. The drainage system has a drainage mode and two cleaning modes. When it is in drainage mode, the first and second valve ports are open, the third valve port is closed, and the blower stops working. The two cleaning modes are the upper cleaning mode and the lower cleaning mode. When it is in the upper cleaning mode, the first and third valve ports are open, the second valve port is closed, and the blower starts. When it is in the lower cleaning mode, the second and third valve ports open, the first valve port closes, and the blower starts; The blower device includes a blower, a waterproof and breathable membrane, and a pressure sensor. The waterproof and breathable membrane is disposed at the air outlet of the blower, and the pressure sensor is disposed at the air outlet to detect the air pressure at the air outlet.

2. The intelligent skylight drainage system according to claim 1, characterized in that, The intelligent control system also includes an active cleaning module, which is used to control the opening and closing of the three-way solenoid valve and the start and stop of the blower according to the pollution index. The active cleaning module includes a rainwater detection unit, a timing unit and a pollution index calculation unit. The rainwater detection unit is used to detect whether the drainage system is exposed to rainy weather environment. The timing unit is used to determine the number of days the drainage system has been used. The pollution index calculation unit is used to calculate the current pollution index of the drainage pipe and preset a pollution index threshold. The pollution index is obtained by accumulating the environmental pollution coefficients of each day within the time period of the usage days. The environmental pollution coefficient is an initial preset value determined based on the environment in which the drainage system is located. When the pollution index reaches the pollution index threshold and the drainage system is not exposed to rainy weather, the intelligent control system controls the drainage system to enter the cleaning mode. After the cleaning is completed, the pollution index is reset to 0.

3. The intelligent skylight drainage system according to claim 2, characterized in that, The active cleaning module also includes an air humidity meter and a dust detector. The air humidity meter is used to detect the air humidity of the environment in which the drainage system is located, and the dust detector is used to detect the dust level of the environment in which the drainage system is located. The initial preset value is determined by the air humidity and the dust level.

4. The intelligent skylight drainage system according to claim 3, characterized in that, The intelligent control system also includes a passive control module, which can control the opening and closing of the three-way solenoid valve and the start and stop of the blower according to the input control signal.

5. A car, characterized in that, The vehicle has the intelligent sunroof drainage system as described in claim 4, wherein the intelligent control system is installed on the vehicle and integrated into the vehicle control system.

6. A smart sunroof drainage control method, used for drainage control of a vehicle as described in claim 5, characterized in that, This includes proactive cleanup control, emergency cleanup control, and reactive cleanup control; The active cleaning control includes: when the drain pipe is detected to have reached the cleaning condition, obtaining the rainwater exposure information of the intelligent sunroof drainage system; if it is not exposed to rainy weather, executing the predetermined cleaning steps. The emergency cleanup control includes: upon receiving water level information transmitted by the first water level sensor or the second water level sensor, executing a predetermined upper-stage cleanup step; The passive cleaning control includes: executing predetermined cleaning steps when receiving control information sent by the passive control module; The cleaning steps include: S1 controls the intelligent sunroof drainage system to switch from drainage mode to lower cleaning mode and detects air pressure changes at the air outlet. S2, if the air pressure at the air outlet rises, continue blowing until the air pressure drops and stabilizes to the predetermined range, continue blowing for the predetermined time, and then switch to the upper cleaning mode; if the air pressure at the air outlet remains unchanged, switch directly to the upper cleaning mode. S3: Continue blowing air until the air pressure drops and stabilizes within the predetermined range. Continue blowing air for the predetermined time, then switch to drainage mode.

7. The intelligent skylight drainage control method according to claim 6, characterized in that, The drainage pipe reaches the cleaning condition when the pollution index reaches a preset pollution index threshold. The pollution index is obtained by accumulating the environmental pollution coefficient of each day within the time period of the number of days of use. The environmental pollution coefficient is an initial preset value determined based on the environment in which the drainage system is located.

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