An active ventilation cooling system and method for a radar radome

Abstract

The application relates to the field of radar technology and discloses an active ventilation cooling system and method for a radar antenna cover, which comprises a top ventilation opening, an antenna cover, an active ventilation cooling device and a fan controller, the top ventilation opening is located at the top end of the antenna cover and is used for natural ventilation and auxiliary heat dissipation, the antenna cover is designed as a cavity opening type semispherical shape to adapt to the installation and operation of a radar antenna, the active ventilation cooling device is arranged at the bottom end of the antenna cover and is used for air intake and air exhaust, and the fan controller is used for controlling the start and stop of the active ventilation cooling device. The active ventilation cooling system and method can solve the problem of poor heat dissipation of the radar antenna cover in a high-temperature environment, realize efficient heat dissipation, automatic control and all-weather operation.

Description

Technical Field

[0001] This invention relates to the field of radar technology, and specifically to an active ventilation and cooling system and method for a radar radome. Background Technology

[0002] With the continuous development of modern radar technology, the performance and power of radar antennas are constantly improving, especially with the increasingly widespread application of large radar antennas such as multi-target tracking and identification radar antennas and early warning radar antennas for missile defense. However, these high-performance radar antennas have extremely high transmission power; the continuous wave transmission power of a single antenna can reach thousands of watts, and they typically operate in all weather conditions. As an important protective device for radar antennas, the radar radome's main function is to physically isolate the radar from the natural environment, preventing environmental influences and interference on the radar antenna's operating status and extending the radar's lifespan. However, due to the small distance between the radar antenna and the radome, the spatial attenuation of high-power microwaves is relatively small, allowing them to directly enter the radome, increasing the power density within the radome. Furthermore, the radome material itself has poor thermal conductivity, causing heat to accumulate continuously within the radome, gradually raising the temperature.

[0003] Existing radar radomes are mostly passive ventilation systems, whose cooling capacity is greatly affected by wind force and direction, failing to meet the heat dissipation requirements of high-power radar antennas. Increased temperatures inside the radome not only damage the materials and structure of the radome, affecting its lifespan, but also easily lead to thermal overload of the radar antenna, subsequently affecting its normal operation and causing serious consequences. Furthermore, existing radar radomes are prone to water or snow accumulation in rainy or snowy weather, affecting electromagnetic wave radiation and reception, causing the radar to malfunction. Simultaneously, the high temperatures inside the radome can easily damage equipment and reduce reliability, even causing the radar system to shut down due to overheating in extreme cases.

[0004] To effectively address the aforementioned issues, existing technologies have proposed various improved solutions for radar radomes, such as active ventilation and cooling systems. These systems involve installing ventilation openings at the top of the radome and multiple active ventilation and cooling devices at the bottom, along with fan controllers and automatic temperature controllers. This allows for real-time monitoring of the radome's internal temperature and forced circulation ventilation, significantly improving the radome's cooling capacity. However, these solutions still have certain shortcomings in practice, such as complex pre-embedded pipes affecting the radome's forming effect and wave transmission performance, low automation, and failure to achieve timed temperature detection and control. To further improve the heat dissipation performance of radar radomes and solve the problem of poor heat dissipation in high-temperature environments, a new active ventilation and cooling system for radar radomes is urgently needed to ensure efficient operation and heat dissipation performance of the radar antenna in various environments.

[0005] Several invention patents have been granted to address the problem of poor heat dissipation of radar radomes in high-temperature environments. For example:

[0006] CN209561597U discloses an active ventilation and cooling system for radar radomes. This system relates to the field of active ventilation and cooling for radar radomes. The radome is designed as a hemispherical shape with a cavity opening. A top ventilation port is located at the top of the radome, and multiple active ventilation and cooling devices are arranged symmetrically in pairs around the center of the bottom of the radome. A fan controller is located on the bottom surface inside the radome to control the activation and deactivation of the active ventilation and cooling devices. This design is suitable for cooling radar antennas during operation. However, this patent still has the problem that the system's ventilation and cooling efficiency needs to be further improved and energy consumption reduced to meet more efficient heat dissipation requirements.

[0007] CN107069209A discloses a radar radome with ventilation and cooling functions. This invention features air inlets and outlets on the radome, with a fan installed inside the air inlet and a cooling device mounted on the radar antenna array. The two air inlets are symmetrically offset from the front of the radar antenna array, and the center point of the line connecting the center points of the two air inlets, the center of the radar radome, and the center of the outlet are collinear. This design fully utilizes natural cooling sources to reduce the temperature inside the radome, ensuring normal radar operation. However, this patent still has some issues: the layout and size of the air inlets and outlets need further optimization to improve the ventilation and cooling effect, and the temperature inside the radome needs to be monitored in real time to adjust the airflow and cooling intensity according to actual conditions, achieving more precise temperature control.

[0008] Existing radar radomes are mostly passive ventilation devices, whose ventilation and cooling capabilities are greatly affected by wind force and direction, and cannot meet the heat dissipation requirements of high-power radar antennas. Summary of the Invention

[0009] Existing technologies suffer from poor heat dissipation, high energy consumption, and low automation of radar radomes. Therefore, to address these issues, this invention provides an active ventilation and cooling system for radar radomes.

[0010] To achieve the above objectives, the present invention provides the following technical solution.

[0011] In a first aspect, the present invention provides an active ventilation and cooling system for a radar radome, comprising a top vent, a radome, an active ventilation and cooling device, and a fan controller. The top vent is located at the top of the radome and is used for natural ventilation and auxiliary heat dissipation. The radome is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. The active ventilation and cooling device is located at the bottom of the radome and is used for air intake and exhaust. The fan controller is used to control the start and stop of the active ventilation and cooling device.

[0012] As a further improvement of the present invention, the top vent is a plurality of small holes.

[0013] As a further improvement of the present invention, the radome is made of a composite material, which is a carbon fiber composite material or a glass fiber composite material.

[0014] As a further improvement of the present invention, the active ventilation and cooling device includes a protective net, a fan, a connecting hose, an antenna radome ventilation hole fixing bracket, an air direction adjustment pipe, and a dust filter; the fan is connected to the dust filter through the connecting hose, and the air filtered by the dust filter enters the fan; the fan is connected to the ventilation hole on the antenna radome ventilation hole fixing bracket through another connecting hose, blowing the treated air into or out of the designated area; the protective net is installed at the air outlet or air inlet of the fan to protect the fan from damage; the air direction adjustment pipe is installed at the air outlet of the fan to adjust the air outlet direction.

[0015] As a further improvement of the present invention, the protective net is made of stainless steel.

[0016] As a further improvement of the present invention, the fan includes a motor, an impeller, a fan casing, and a support. The fan casing has flanges at both ends. The fan support and the fan casing are an integral structure. The bottom of the support is provided with mounting holes and is fastened to the foundation by expansion bolts. The motor drives the impeller, which is installed in the fan casing.

[0017] As a further improvement of the present invention, the connecting hose includes an outer connecting hose and an inner connecting hose.

[0018] As a further improvement of the present invention, the dust removal filter adopts a multi-layer filter structure.

[0019] As a further improvement of the present invention, the fan controller monitors the temperature inside the radome in real time through an automatic temperature controller on the outer surface, and controls the start and stop of the fan according to a preset temperature range; when the temperature inside the radome exceeds the set range, the automatic temperature controller sends a signal to the fan controller to start the fan for cooling; when the temperature drops to the set range, the fan automatically stops.

[0020] Secondly, the present invention provides a control method for an active ventilation and cooling system for a radar radome, comprising the following steps:

[0021] a. The temperature inside the radome is monitored in real time by a fan controller located on the bottom of the radome and an automatic temperature controller on the outer surface.

[0022] b. When the automatic temperature controller detects that the temperature inside the radome exceeds the preset upper temperature limit, it sends a signal to the fan controller to start the fan in the active ventilation and cooling device to cool down the radome.

[0023] c. After the fan is started, outside air is introduced into the antenna radome through the connecting hose, and the air direction is adjusted using the air direction adjustment pipe to ensure effective heat exchange, and dust and impurities in the air are filtered through the dust removal filter;

[0024] d. When the automatic temperature controller detects that the temperature inside the radome has dropped to the preset lower limit, it sends a signal to the fan controller to stop the fan from running;

[0025] e. Repeat steps a through d to achieve active ventilation and cooling of the radar radome, and automatic control.

[0026] As a further improvement to the present invention, the active ventilation and cooling and automatic control of the radar radome also include:

[0027] Acquire historical temperature data inside the radar radome and external environmental conditions;

[0028] Acquire status data of the equipment inside the radome, including equipment power, running time, and fault records;

[0029] Historical temperature data, external environmental conditions, and equipment status data inside the radome are preprocessed and then normalized / standardized to give different features similar weights.

[0030] Regression models are used to predict future temperatures or temperature change trends; classification models are used to determine whether the fans need to be started; and reinforcement learning is used to make optimal decisions in complex environments.

[0031] Normalized / standardized historical temperature data, external environmental conditions, and equipment status data inside the radome are input into regression model, classification model, and reinforcement model to train an active ventilation cooling and automatic control model that combines regression model, classification model, and reinforcement model.

[0032] Based on the active ventilation and cooling and automatic control model, dynamic temperature thresholds, predictive control, and equipment coordination strategies can be obtained; active ventilation and cooling and automatic control can be carried out based on dynamic temperature thresholds, predictive control, and equipment coordination strategies.

[0033] Compared with the prior art, the present invention provides an active ventilation and cooling system for radar radomes, which has the following beneficial effects:

[0034] This invention, by setting a top ventilation opening at the top of the radar radome and symmetrically arranging multiple active ventilation and cooling devices at the bottom center, combined with a fan controller and an automatic temperature controller, enables forced circulation ventilation of the air inside the radome. This effectively improves the heat dissipation capacity of the radar radome, meets the heat dissipation requirements of high-power radar antennas, and prevents thermal damage to the radome from high temperatures. The invention employs an automatic temperature controller to monitor and adjust the activation and deactivation of the active ventilation and cooling devices in real time based on changes in the temperature inside the radar radome. This achieves precise temperature control within the radome, avoids equipment damage caused by high temperatures, and improves the system's automation level and operational efficiency.

[0035] The invented active ventilation and cooling system can operate stably under various climatic conditions, preventing the impact of rain and snow on the radar radome, ensuring the normal operation of the radar antenna around the clock, and enhancing the reliability and service life of the radar system. Through the rational design of the fan, connecting hoses, ventilation hole mounting brackets, airflow adjustment pipes, and dust filters, the system's structural stability and sealing are ensured, avoiding the impact of complex pre-embedded pipe designs on the radome's forming effect and wave transmission performance, thus improving the overall performance of the system.

[0036] This invention improves ventilation and cooling efficiency, reduces energy consumption, adapts to more efficient heat dissipation requirements, and lowers system operating costs by optimizing the design of the fan and ventilation system. The invention also adds a protective mesh and dust filter to the active ventilation and cooling device, effectively preventing foreign objects from entering and airborne dust and impurities from affecting the equipment, further enhancing the protective performance of the radar radome and the overall reliability of the system. Attached Figure Description

[0037] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0038] Figure 1 This is a schematic diagram of an active ventilation and cooling system for a radar radome according to the present invention.

[0039] Figure 2 This is a schematic diagram of the active ventilation and cooling device of the present invention. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0041] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0042] 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] The purpose of this invention is to overcome the shortcomings of the prior art and provide an active ventilation and cooling system for radar radomes, which can solve the problem of poor heat dissipation of radar radomes 2 in high-temperature environments and achieve efficient heat dissipation, automatic control, and all-weather operation.

[0044] The active ventilation and cooling system of the radar radome includes a top vent 1, an radome 2, an active ventilation and cooling device 3, and a fan 35 controller. The top vent 1 is located at the top of the radome 2 and is used for natural ventilation and auxiliary heat dissipation. The radome 2 is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. The active ventilation and cooling device 3 is located at the bottom of the radome 2 and is used for air intake and exhaust. The fan 35 controller is used to control the start and stop of the active ventilation and cooling device 3.

[0045] Specifically, the active ventilation and cooling system of the radar radome mainly consists of the following parts:

[0046] The top vent 1 is located at the top of the radome 2 and is used for natural ventilation and auxiliary heat dissipation. The top vent 1 is designed with multiple small holes to ensure ventilation without affecting the electromagnetic wave transmission and reception of the radar antenna.

[0047] The radome 2 is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. The radome 2 is made of a high-strength, corrosion-resistant, and high-transmission composite material to ensure long-term use in various harsh weather conditions.

[0048] For example, carbon fiber composite materials can be chosen: carbon fiber composite materials have high specific strength and specific modulus, and their lightweight and high strength characteristics make them an ideal material for use in the aerospace field. At the same time, they also have excellent electromagnetic properties, effectively meeting the requirements of the radar radome 2 for lightweight design and electromagnetic interference resistance. Using carbon fiber composite materials for the radar radome 2 allows for lightweight design, improving the aircraft's fuel economy and flight performance.

[0049] Glass fiber composites: Glass fiber composites possess excellent electrical insulation and corrosion resistance, along with high tensile strength and good dielectric properties. They are commonly used in radar systems requiring electrical insulation.

[0050] Active ventilation and cooling device 3: includes multiple devices, arranged symmetrically in pairs around the center of the bottom of the antenna cover 2, for air intake and exhaust. Active ventilation and cooling device 3 includes a protective net 32, a fan 35, a connecting hose 31, a fixing frame 36, an air direction adjustment pipe 34, and a dust filter 33.

[0051] Fan 35 is the core component of the entire ventilation and cooling system, responsible for generating airflow. Fan 35 should be installed in a suitable location to effectively draw in outdoor air and exhaust it indoors or outdoors.

[0052] The connecting hose 31 is used to connect the fan 35 to other components, such as the dust filter 33 and the mounting bracket 36. The hose is flexible enough to adapt to different installation angles and distances while ensuring smooth airflow. The dust filter 33 is typically installed at the air inlet of the fan 35 to filter out dust and impurities from the air. The filter should be cleaned or replaced regularly to maintain its filtering effect. The protective net 32 ​​is installed at the air outlet or inlet of the fan 35 to prevent foreign objects from entering the fan 35 and causing damage. The protective net 32 ​​should have sufficient strength and density to block larger objects and insects. The mounting bracket 36 is used to secure the ventilation holes on the radome 2 and ensure their accurate positioning.

[0053] If the device needs to be mounted on the radome 2, the mounting bracket 36 should be able to be securely fixed to the radome 2 and support the ventilation holes and related connecting parts.

[0054] The airflow adjustment pipe 34 is used to adjust the airflow direction of the fan 35 in order to better control the airflow distribution. The adjustment pipe can be installed at the air outlet of the fan 35 and the airflow direction can be adjusted by rotating or moving it.

[0055] The fan 35 is connected to the dust filter 33 via a connecting hose 31, and the air filtered by the dust filter 33 enters the fan 35. The fan 35 is connected to the ventilation holes on the mounting bracket 36 via another connecting hose 31, blowing the treated air into or out of the designated area. A protective net 32 ​​is installed at the air outlet or air inlet of the fan 35 to protect the fan 35 from damage. A wind direction adjustment pipe 34 is installed at the air outlet of the fan 35 to adjust the airflow direction.

[0056] The protective net 32 ​​is mainly used to protect the fan 35 and the ventilation system, preventing foreign objects from entering. The protective net 32 ​​is made of stainless steel, which is durable and corrosion-resistant. The fan 35 mainly includes a motor, impeller, fan casing, and support. The fan casing has flanges at both ends, and the fan 35 support is welded to the fan casing as a single unit. The support has mounting holes at the bottom and is secured to the concrete foundation with expansion bolts. The fan 35 is designed for low noise and high efficiency to minimize its impact on the internal environment of the radar radome 2. The connecting hose 31 mainly includes an outer connecting hose 31 and an inner connecting hose 31, used to connect the fan 35 and the radome 2. The connecting hose 31 is made of high-temperature resistant and corrosion-resistant materials to ensure that it will not age or break during long-term use. The fixing bracket 36 is mainly used to fix the outer connecting hose 31, ensuring a seal and stability. The fixing bracket 36 is made of high-strength materials to ensure that it will not loosen or fall off during the operation of the fan 35.

[0057] The airflow adjustment pipe 34 is mainly used to adjust the airflow direction to ensure effective heat exchange. The airflow adjustment pipe 34 can be manually adjusted according to actual needs to ensure optimal heat dissipation. The dust filter 33 is mainly used to filter the air entering the radome 2, preventing dust and impurities from affecting the equipment. The dust filter 33 adopts a multi-layer filter structure, has high-efficiency dust removal capabilities, and is easy to disassemble and clean. The fan controller 35 is mainly located on the bottom inside the radome 2 and is used to control the start and stop of the active ventilation cooling device 3. The fan controller 35 monitors the temperature inside the radome 2 in real time through an automatic temperature controller on its outer surface.

[0058] The automatic temperature controller primarily uses the internal temperature of the radar radome 2 to force air circulation within the radome 2, effectively improving its cooling capacity. The automatic temperature controller can preset a temperature range. When the internal temperature of the radome 2 exceeds the set range, it sends a signal to the fan 35 controller to activate the fan 35 for cooling. When the temperature drops below the set range, the fan 35 automatically shuts down, saving energy.

[0059] Through the above design, the active ventilation and cooling system of the radar radome 2 of the present invention can achieve efficient heat dissipation in various environments, ensure the normal operation of the radar antenna, extend the service life of the radar antenna and the radome 2, and improve the overall reliability and automation level of the system.

[0060] The technical solution of the present invention will be described in detail below with reference to specific embodiments:

[0061] Example 1:

[0062] This embodiment provides an active ventilation and cooling system for a radar radome, including a top vent 1, a radome 2, an active ventilation and cooling device 3, and a fan 35 controller. The radome 2 is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. It is made of high-strength, corrosion-resistant, and high-transmittance materials to ensure long-term use under various harsh weather conditions. A top vent 1 consisting of multiple small holes is designed at the top of the radome 2 for natural ventilation and auxiliary heat dissipation, ensuring effective ventilation without affecting the electromagnetic wave transmission and reception of the radar antenna.

[0063] The active ventilation and cooling device 3 includes multiple devices arranged symmetrically in pairs around the center of the bottom of the radome 2 for air intake and exhaust. Each active ventilation and cooling device 3 includes a protective net 32, a fan 35, a connecting hose 31, a mounting bracket 36, an airflow adjustment pipe 34, and a dust filter 33. The protective net 32 ​​is made of stainless steel, providing durability and corrosion resistance, and is used to protect the fan 35 and the ventilation system, preventing foreign objects from entering. The fan 35 includes a motor, impeller, air duct, and support. The air duct has flanges at both ends, and the fan 35 support is welded to the air duct as a single unit. The support has mounting holes at the bottom and is secured to the concrete foundation with expansion bolts. The fan 35 is designed for low noise and high efficiency to minimize its impact on the internal environment of the radar radome 2. The connecting hose 31 includes an outer connecting hose 31 and an inner connecting hose 31, made of high-temperature and corrosion-resistant materials to ensure long-term durability. The following components are used to connect the fan 35 and the radome 2: A mounting bracket 36 is used to secure the connecting hose 31 on the outside of the radome, ensuring a tight seal and stability. The mounting bracket 36 is made of high-strength material to ensure that it will not loosen or fall off when the fan 35 is running. An airflow adjustment pipe 34 is used to adjust the airflow direction to ensure effective heat exchange. The airflow adjustment pipe 34 can be manually adjusted according to actual needs to ensure optimal heat dissipation. A dust filter 33 is used to filter the air entering the radome 2, preventing dust and impurities from affecting the equipment. It adopts a multi-layer filter structure, has high-efficiency dust removal capabilities, and is easy to disassemble and clean.

[0064] The fan 35 controller is located on the bottom inside the radome 2 and is used to control the start and stop of the active ventilation and cooling device 3. It monitors the temperature inside the radome 2 in real time through an automatic temperature controller on the outer surface. The automatic temperature controller can preset a temperature range. When the temperature inside the radome 2 exceeds the set range, the automatic temperature controller will send a signal to the fan 35 controller to start the fan 35 for cooling. When the temperature drops to the set range, the fan 35 will automatically stop, saving energy.

[0065] Through the above design, the active ventilation and cooling system of the radar radome 2 in this embodiment can achieve efficient heat dissipation in various environments, ensure the normal operation of the radar antenna, extend the service life of the radar antenna and radome 2, and improve the overall reliability and automation level of the system.

[0066] Example 2:

[0067] This embodiment provides an active ventilation and cooling system for a radar radome, including a top vent 1, a radome 2, an active ventilation and cooling device 3, and a fan 35 controller. The radome 2 is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. It is made of a high-strength, corrosion-resistant, and high-transmission composite material to ensure long-term use under various harsh weather conditions. A top vent 1 consisting of multiple small holes is designed at the top of the radome 2 for natural ventilation and auxiliary heat dissipation, ensuring effective ventilation without affecting the electromagnetic wave transmission and reception of the radar antenna.

[0068] The active ventilation and cooling device 3 comprises multiple units, symmetrically arranged in pairs around the center of the bottom of the radome 2, for air intake and exhaust. Each active ventilation and cooling device 3 includes a protective net 32, a fan 35, a connecting hose 31, a mounting bracket 36, an airflow adjustment pipe 34, and a dust filter 33. The protective net 32 ​​is made of stainless steel, providing durability and corrosion resistance, and is used to protect the fan 35 and the ventilation system, preventing foreign objects from entering. The fan 35 includes a motor, impeller, air duct, and support. The air duct has flanges at both ends, and the fan 35 support is welded to the air duct as a single unit. The support has mounting holes at the bottom and is secured to the concrete foundation with expansion bolts. The fan 35 is designed for low noise and high efficiency to minimize its impact on the internal environment of the radar radome 2. The connecting hose 31 includes an outer connecting hose 31 and an inner connecting hose 31, made of high-temperature and corrosion-resistant materials to ensure long-term durability. The following components are used to connect the fan 35 and the radome 2: A mounting bracket 36 is used to secure the connecting hose 31 on the outside of the radome, ensuring a tight seal and stability. The mounting bracket 36 is made of high-strength material to ensure that it will not loosen or fall off when the fan 35 is running. An airflow adjustment pipe 34 is used to adjust the airflow direction to ensure effective heat exchange. The airflow adjustment pipe 34 can be manually adjusted according to actual needs to ensure optimal heat dissipation. A dust filter 33 is used to filter the air entering the radome 2, preventing dust and impurities from affecting the equipment. It adopts a multi-layer filter structure, has high-efficiency dust removal capabilities, and is easy to disassemble and clean.

[0069] The fan 35 controller is located on the bottom inside the radome 2 and is used to control the start and stop of the active ventilation and cooling device 3. It monitors the temperature inside the radome 2 in real time through an automatic temperature controller on the outer surface. The automatic temperature controller can preset a temperature range. When the temperature inside the radome 2 exceeds the set range, the automatic temperature controller will send a signal to the fan 35 controller to start the fan 35 for cooling. When the temperature drops to the set range, the fan 35 will automatically stop, saving energy.

[0070] Based on the above structural description, the present invention also provides a control method for the active ventilation and cooling system of the radar radome 2, the method comprising the following steps:

[0071] a. The temperature inside the radome 2 is monitored in real time by a fan 35 controller located on the bottom of the inside of the radome 2 and an automatic temperature controller on the outer surface.

[0072] b. When the automatic temperature controller detects that the internal temperature of the antenna cover 2 exceeds the preset upper temperature limit, it transmits a signal to the fan 35 controller to start the fan 35 in the active ventilation and cooling device 3 for cooling; the active ventilation and cooling device 3 is symmetrically arranged in pairs around the center of the bottom end of the antenna cover 2 for air intake and exhaust, and each device includes a protective net 32, a fan 35, a connecting hose 31, a fixing frame 36, an air direction adjustment pipe 34 and a dust filter 33;

[0073] c. After the fan 35 is started, external air is introduced into the antenna cover 2 through the connecting hose 31. At the same time, the air direction is adjusted by the air direction adjustment pipe 34 to ensure effective heat exchange, and dust and impurities in the air are filtered by the dust filter 33.

[0074] d. When the automatic temperature controller detects that the internal temperature of the radome 2 has dropped to the preset lower limit, it sends a signal to the fan 35 controller to stop the operation of the fan 35 in order to save energy;

[0075] e. Repeat steps a to d to achieve active ventilation and cooling of radar radome 2 and automatic control.

[0076] This claim explicitly describes a control method for an active ventilation and cooling system for a radar radome 2, covering key steps such as temperature monitoring, fan 35 start-up and shutdown, air introduction and filtration, and airflow direction adjustment, thereby achieving efficient heat dissipation and automatic control of the system. This method not only improves the overall reliability and automation level of the system but also ensures the normal operation of the radar antenna in various environments.

[0077] To improve the efficiency and accuracy of active ventilation cooling and automatic control, this invention also introduces machine learning algorithms to achieve adaptive control of the fan controller, including steps such as data collection, model training, and strategy implementation. Regression model training is used to predict future temperature or temperature change trends; classification model is used to determine whether the fan needs to be started; and reinforcement learning is used to make optimal decisions in complex environments.

[0078] Normalized / standardized historical temperature data, external environmental conditions, and equipment status data inside the radome are input into regression model, classification model, and reinforcement model to train an active ventilation cooling and automatic control model that combines regression model, classification model, and reinforcement model.

[0079] Based on the active ventilation and cooling and automatic control model, dynamic temperature thresholds, predictive control, and equipment coordination strategies can be obtained; active ventilation and cooling and automatic control can then be implemented based on these dynamic temperature thresholds, predictive control, and equipment coordination strategies. The specific steps of the above scheme are as follows:

[0080] 1. Data collection and preprocessing includes the following steps:

[0081] Historical temperature data: Temperature records over a period of time are collected from the fan controller and temperature sensors.

[0082] External environmental conditions: Obtain seasonal and weather data (such as temperature, humidity, wind speed, wind direction, rainfall, etc.) through meteorological API.

[0083] Status of equipment inside the radome: including equipment power, operating time, fault records, etc.

[0084] Data preprocessing includes data cleaning: removing outliers, duplicates, and missing values. It also includes feature engineering: extracting features that affect temperature control, such as time (hours, dates, seasons), weather type (sunny, rainy, snowy, etc.), and equipment load.

[0085] Finally, normalization / standardization is performed to ensure that different features have similar weights during model training.

[0086] 2. Model selection and training include the following steps:

[0087] Regression models are used to predict future temperatures or temperature change trends, such as linear regression, decision tree regression, random forest regression, gradient boosting regression, etc.

[0088] Classification models: used to determine whether the wind turbine needs to be started, such as logistic regression, support vector machine, random forest classifier, etc.

[0089] Reinforcement learning: If a system needs to learn to make optimal decisions in complex environments, reinforcement learning models can be considered.

[0090] The training process may include: Splitting the dataset: Dividing the dataset into training, validation, and test sets. Model training: Training the model using the training set data and tuning hyperparameters to optimize performance. Model validation: Evaluating the model's performance using the validation set and selecting the best model. Model testing: Validating the model's generalization ability on the test set.

[0091] 3. The strategy implementation process includes the following steps:

[0092] Dynamic temperature threshold: The temperature threshold is dynamically adjusted based on historical data and the current environment to manage temperature more precisely.

[0093] Predictive control: Using regression models to predict future temperatures, the operating status of the fan is adjusted in advance to prevent the temperature from exceeding the set range.

[0094] Equipment coordination: Adjust the fan control strategy according to the status of the equipment inside the radome, such as increasing the ventilation volume when the equipment is under high load.

[0095] Real-time data monitoring: Continuously collects real-time data to monitor system status.

[0096] Strategy adjustment: Dynamically adjust the control strategy based on real-time feedback and model prediction results.

[0097] This system can dynamically adjust temperature thresholds and fan control strategies based on historical data, external environment, and equipment status, achieving more precise temperature management, reducing unnecessary energy consumption, and improving system performance and reliability.

[0098] Through the above design, the active ventilation and cooling system of the radar radome 2 in this embodiment can achieve efficient heat dissipation in various environments, ensure the normal operation of the radar antenna, extend the service life of the radar antenna and radome 2, and improve the overall reliability and automation level of the system.

[0099] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed inventive subject matter.

[0100] The above content provides a further detailed description of the present invention. It should not be construed that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection of the present invention as defined by the submitted claims.

Claims

1. A control method for an active ventilation and cooling system for a radar radome, characterized in that, Includes the following steps: a. The temperature inside the radome is monitored in real time by a fan controller located on the bottom of the radome and an automatic temperature controller on the outer surface. b. When the automatic temperature controller detects that the temperature inside the radome exceeds the preset upper temperature limit, it sends a signal to the fan controller to start the fan in the active ventilation and cooling device to cool down the radome. c. After the fan is started, outside air is introduced into the antenna radome through the connecting hose. At the same time, the wind direction is adjusted using the wind direction adjustment pipe, and dust and impurities in the air are filtered through the dust removal filter. d. When the automatic temperature controller detects that the temperature inside the radome has dropped to the preset lower limit, it sends a signal to the fan controller to stop the fan from running; e. Repeat steps a to d to achieve active ventilation and cooling of the radar radome and automatic control; To achieve active ventilation and cooling of the radar radome and automatic control, the following are also included: Acquire historical temperature data and external environmental conditions inside the radar radome; external environmental conditions include seasonal and weather data obtained through meteorological APIs. Acquire status data of the equipment inside the radome, including equipment power, running time, and fault records; Historical temperature data, external environmental conditions, and equipment status data inside the radome are preprocessed and then normalized / standardized to give different features similar weights. Regression models are used to predict future temperatures or temperature change trends; classification models are used to determine whether the fans need to be started; and reinforcement learning is used to make optimal decisions in complex environments. Normalized / standardized historical temperature data, external environmental conditions, and equipment status data inside the radome are input into regression model, classification model, and reinforcement model to train an active ventilation cooling and automatic control model that combines regression model, classification model, and reinforcement model. Based on the active ventilation and cooling and automatic control model, dynamic temperature thresholds, predictive control, and equipment coordination strategies are obtained; active ventilation and cooling and automatic control are carried out based on dynamic temperature thresholds, predictive control, and equipment coordination strategies.

2. An active ventilation and cooling system for a radar radome, implementing the control method described in claim 1; characterized in that, It includes a top vent, an antenna radome, an active ventilation and cooling device, and a fan controller. The top vent is located at the top of the antenna radome and is used for natural ventilation and auxiliary heat dissipation. The antenna radome is designed as a hemispherical shape with a cavity opening to accommodate the installation and operation of the radar antenna. The active ventilation and cooling device is located at the bottom of the antenna cover and is used for air intake and exhaust; the fan controller is used to control the start and stop of the active ventilation and cooling device.

3. The active ventilation and cooling system for the radar radome according to claim 2, characterized in that, The top vent consists of multiple small holes.

4. The active ventilation and cooling system for the radar radome according to claim 2, characterized in that, The radome is made of a composite material, which is either carbon fiber composite material or glass fiber composite material.

5. The active ventilation and cooling system for the radar radome according to claim 2, characterized in that, The active ventilation and cooling device includes a protective net, a fan, a connecting hose, a radome ventilation hole mounting bracket, an air direction adjustment pipe, and a dust filter. The fan is connected to the dust filter via the connecting hose, and the air filtered by the dust filter enters the fan. The fan is connected to the ventilation hole on the radome ventilation hole mounting bracket via another connecting hose, blowing the treated air into or out of the designated area. The protective net is installed at the air outlet or air inlet of the fan to protect the fan from damage. The air direction adjustment pipe is installed at the air outlet of the fan to adjust the airflow direction.

6. The active ventilation and cooling system for the radar radome according to claim 5, characterized in that, The fan includes a motor, an impeller, a fan casing, and a support frame. The fan casing has flanges at both ends. The fan support is an integral structure with the fan casing. The bottom of the support has mounting holes and is fastened to the foundation with expansion bolts. The motor drives the impeller, which is installed inside the fan casing.

7. The active ventilation and cooling system for the radar radome according to claim 5, characterized in that, The connecting hose includes an outer connecting hose and an inner connecting hose.

8. The active ventilation and cooling system for the radar radome according to claim 5, characterized in that, The dust filter adopts a multi-layer filter structure.

9. The active ventilation and cooling system for the radar radome according to claim 2, characterized in that, The fan controller monitors the temperature inside the radome in real time through an automatic temperature controller on the outer surface, and controls the start and stop of the fan according to the preset temperature range. When the temperature inside the radome exceeds the set range, the automatic temperature controller sends a signal to the fan controller to start the fan to cool it down. When the temperature drops to the set range, the fan automatically stops.

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