Intelligent sensing and processing method and system for liquid collecting cavity of atmospheric sensing system

Abstract

The invention relates to the technical field of aerospace instruments and aircraft atmosphere data systems, and discloses an intelligent sensing and processing method and system for a liquid collection cavity of an atmosphere sensing system. The intelligent sensing and processing system comprises a liquid level monitoring module, a control unit, a drainage execution mechanism, a drainage port and an adjustable heating module, and the liquid level monitoring module is used for outputting monitoring data; the control unit is used for receiving the monitoring data of the liquid level monitoring module, determining the height of the liquid level in the liquid collecting cavity according to the monitoring data, comparing the determined height of the liquid level with a liquid level triggering threshold value, and controlling the drainage executing mechanism and the adjustable heating module according to a comparison result; the adjustable heating module is uniformly wound outside the pressure measuring pipeline, the liquid collecting cavity and the drainage executing mechanism and is used for executing heating operation under the control of the control unit; and the drainage execution mechanism is arranged between the bottom of the liquid collection cavity and the drainage port and is used for switching between opening and closing under the control of the control unit.

Description

Technical Field

[0001] This invention relates to the field of aerospace instruments and aircraft atmospheric data systems, and in particular to an intelligent sensing and processing method and system for the liquid collection chamber of an atmospheric sensing system. Background Technology

[0002] Atmospheric sensing systems (ADS) are widely used in the aerospace field and are an important component of aircraft control systems. The pressure measurement pipelines within an ADS system, including pitot tubes, total pressure and static pressure measurement pipelines, etc., directly affect the accuracy of data collected, impacting the calculation of critical flight parameters such as airspeed and altitude. During flight, especially when traversing clouds, rain zones, or high-humidity atmospheric environments, supercooled water droplets and rainwater in the air can enter the pressure measurement pipelines with the airflow. Traditional pressure measurement pipelines, such as pitot tubes, typically include a simple collection chamber designed to collect and initially store this liquid water through gravity, preventing it from directly clogging the pressure measurement orifice. Currently, traditional collection chambers and drainage schemes suffer from the following main technical drawbacks:

[0003] 1. Passive and inefficient drainage: It heavily relies on gravity for drainage, meaning that only under ground conditions or specific flight attitudes can the accumulated liquid slowly drain out from tiny drainage holes at the bottom by its own weight. This method is inefficient and difficult to effectively drain under complex flight attitudes (such as climbs and turns).

[0004] 2. Lack of status awareness and early warning: The liquid level in the collection chamber cannot be detected in real time and accurately. Pilots and maintenance personnel have no way of knowing the real-time status of the accumulated liquid, posing a significant potential risk of freezing (complete blockage of the pipeline) or inaccurate measurement data due to excessive water accumulation and failure to drain it in time.

[0005] 3. Disconnect between anti-icing and drainage functions: Existing electric heating anti-icing solutions typically operate independently, providing continuous or intermittent full-power heating, resulting in high energy consumption. Furthermore, their heating logic is unrelated to the actual liquid accumulation state. While primarily preventing external freezing, they cannot effectively address the issue of internal liquid freezing due to low temperatures, particularly the freezing risk at the critical drain outlet.

[0006] Therefore, there is a need for an integrated and intelligent liquid collection chamber structure and system solution that can sense the liquid level in the collection chamber in real time and take corresponding measures accordingly. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent sensing and processing method and system for the liquid collection cavity of an atmospheric sensing system, which can solve the problems in the prior art.

[0008] The technical solution of this invention: An intelligent sensing and processing system for a liquid collection chamber in an atmospheric sensing system, wherein the intelligent sensing and processing system includes a liquid level monitoring module, a control unit, a drainage actuator, a drain outlet, and an adjustable heating module, wherein:

[0009] The liquid level monitoring module is used to output monitoring data;

[0010] The control unit is used to receive monitoring data from the liquid level monitoring module, determine the liquid level height in the collection chamber based on the monitoring data, compare the determined liquid level height with the liquid level trigger threshold, and control the drainage actuator and the adjustable heating module based on the comparison result.

[0011] An adjustable heating module is evenly wound around the pressure measuring pipeline, the liquid collection chamber, and the outside of the drainage actuator, and is used to perform heating operations under the control of the control unit;

[0012] The drainage actuator is located between the bottom of the liquid collection chamber and the drain outlet, and is used to switch between opening and closing under the control of the control unit.

[0013] Preferably, the liquid level detection module is a non-contact capacitive sensor, the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

[0014] Preferably, determining the liquid level height in the collection chamber based on monitoring data includes: determining the liquid level height in the collection chamber based on the capacitance value output by the non-contact capacitance sensor and the pre-calibrated capacitance level curve.

[0015] Preferably, controlling the drainage actuator and the adjustable heating module based on the comparison results includes:

[0016] If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level.

[0017] If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

[0018] Preferably, controlling the opening of the solenoid valve and controlling the adjustable heating module to perform the heating operation includes:

[0019] The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open the solenoid valve to discharge the accumulated liquid in the collection chamber.

[0020] After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power.

[0021] If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after the pulse electrical signal is sent, ice blockage is detected. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

[0022] The present invention also provides an intelligent sensing and processing method for a liquid collection cavity in an atmospheric sensing system, wherein the intelligent sensing and processing method includes:

[0023] The liquid level monitoring module outputs monitoring data.

[0024] The control unit receives monitoring data from the liquid level monitoring module, determines the liquid level height in the collection chamber based on the monitoring data, compares the determined liquid level height with the liquid level trigger threshold, and controls the drainage actuator and adjustable heating module based on the comparison result.

[0025] The liquid level monitoring module is set at a predetermined position on the outer wall of the liquid collection chamber. The adjustable heating module is evenly wrapped around the pressure measuring pipeline, the liquid collection chamber and the outside of the drainage actuator. The adjustable heating module performs heating operation under the control of the control unit. The drainage actuator is set at the drain outlet of the liquid collection chamber and is used to switch between opening and closing under the control of the control unit.

[0026] Preferably, the liquid level detection module is a non-contact capacitive sensor, the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

[0027] Preferably, determining the liquid level height in the collection chamber based on monitoring data includes: determining the liquid level height in the collection chamber based on the capacitance value output by the non-contact capacitance sensor and the pre-calibrated capacitance level curve.

[0028] Preferably, controlling the drainage actuator and the adjustable heating module based on the comparison results includes:

[0029] If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level.

[0030] If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

[0031] Preferably, controlling the opening of the solenoid valve and controlling the adjustable heating module to perform the heating operation includes:

[0032] The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open the solenoid valve to discharge the accumulated liquid in the collection chamber.

[0033] After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power.

[0034] If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after the pulse electrical signal is sent, ice blockage is detected. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

[0035] The above technical solution enables real-time and accurate monitoring of the liquid level in the collection chamber, and intelligent decision-making based on the liquid level information to achieve proactive and reliable automatic drainage. At the same time, it dynamically adjusts the heating power, significantly optimizing system energy efficiency and comprehensively improving flight safety while ensuring the reliability of anti-icing and drainage. Attached Figure Description

[0036] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0037] Figure 1 A structural principle block diagram of an intelligent sensing and processing system for a liquid collection cavity of an atmospheric sensing system provided in an embodiment of the present invention;

[0038] Figure 2 This is a cross-sectional structural diagram of the intelligent sensing and processing system for the liquid collection cavity of the atmospheric sensing system in an embodiment of the present invention.

[0039] Figure 3 A flowchart of an intelligent sensing and processing method for a liquid collection cavity in an atmospheric sensing system, provided in an embodiment of the present invention. Detailed Implementation

[0040] Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, specific details are set forth for purposes of explanation and not limitation, in order to aid in a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced in other embodiments departing from these specific details.

[0041] It should be noted that, in order to avoid obscuring the invention with unnecessary details, only the device structure and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0042] Figure 1 This is a structural principle block diagram of an intelligent sensing and processing system for a liquid collection cavity of an atmospheric sensing system, provided as an embodiment of the present invention.

[0043] like Figure 1 As shown, this embodiment of the invention provides an intelligent sensing and processing system for a liquid collection chamber of an atmospheric sensing system. The intelligent sensing and processing system includes a liquid level monitoring module, a control unit, a drainage actuator, a drain outlet, and an adjustable heating module.

[0044] The liquid level monitoring module is used to output monitoring data.

[0045] The control unit is used to receive monitoring data from the liquid level monitoring module, determine the liquid level height in the collection chamber based on the monitoring data, compare the determined liquid level height with the liquid level trigger threshold, and control the drainage actuator and the adjustable heating module based on the comparison result.

[0046] An adjustable heating module is evenly wound around the pressure measuring pipeline, the liquid collection chamber, and the outside of the drainage actuator, and is used to perform heating operations under the control of the control unit;

[0047] The drainage actuator, located at the drain outlet of the liquid collection chamber, is used to switch between opening and closing under the control of the control unit.

[0048] The above technical solution enables real-time and accurate monitoring of the liquid level in the collection chamber, and intelligent decision-making based on the liquid level information to achieve proactive and reliable automatic drainage. At the same time, it dynamically adjusts the heating power, significantly optimizing system energy efficiency and comprehensively improving flight safety while ensuring the reliability of anti-icing and drainage.

[0049] The system also includes a power module to supply power to each module.

[0050] According to one embodiment of the present invention, the liquid level detection module is a non-contact capacitive sensor (industrial-grade non-contact capacitive sensor), the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

[0051] According to one embodiment of the present invention, determining the liquid level height in the collection chamber based on monitoring data includes: determining the liquid level height in the collection chamber based on the capacitance value output by a non-contact capacitance sensor and a pre-calibrated capacitance level curve.

[0052] According to one embodiment of the present invention, controlling the drainage actuator and the adjustable heating module based on a comparison result includes:

[0053] If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level.

[0054] If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

[0055] According to one embodiment of the present invention, controlling the opening of the solenoid valve and controlling the adjustable heating module to perform a heating operation includes:

[0056] The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open (instantly open) the solenoid valve to discharge the accumulated liquid in the collection chamber.

[0057] After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power.

[0058] If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after sending the pulse electrical signal (drainage command), it is determined that ice blockage has occurred. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

[0059] like Figure 3 As shown, this embodiment of the invention provides an intelligent sensing and processing method for a liquid collection cavity in an atmospheric sensing system, wherein the intelligent sensing and processing method includes:

[0060] The liquid level monitoring module outputs monitoring data.

[0061] The control unit receives monitoring data from the liquid level monitoring module, determines the liquid level height in the collection chamber based on the monitoring data, compares the determined liquid level height with the liquid level trigger threshold, and controls the drainage actuator and adjustable heating module based on the comparison result.

[0062] The liquid level monitoring module is set at a predetermined position on the outer wall of the liquid collection chamber. The adjustable heating module is evenly wrapped around the pressure measuring pipeline, the liquid collection chamber and the outside of the drainage actuator. The adjustable heating module performs heating operation under the control of the control unit. The drainage actuator is set at the drain outlet of the liquid collection chamber and is used to switch between opening and closing under the control of the control unit.

[0063] The above technical solution enables real-time and accurate monitoring of the liquid level in the collection chamber, and intelligent decision-making based on the liquid level information to achieve proactive and reliable automatic drainage. At the same time, it dynamically adjusts the heating power, significantly optimizing system energy efficiency and comprehensively improving flight safety while ensuring the reliability of anti-icing and drainage.

[0064] According to one embodiment of the present invention, the liquid level detection module is a non-contact capacitive sensor (industrial-grade non-contact capacitive sensor), the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

[0065] According to one embodiment of the present invention, determining the liquid level height in the collection chamber based on monitoring data includes: determining the liquid level height in the collection chamber based on the capacitance value output by a non-contact capacitance sensor and a pre-calibrated capacitance level curve.

[0066] According to one embodiment of the present invention, controlling the drainage actuator and the adjustable heating module based on a comparison result includes:

[0067] If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level.

[0068] If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

[0069] According to one embodiment of the present invention, controlling the opening of the solenoid valve and controlling the adjustable heating module to perform a heating operation includes:

[0070] The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open (instantly open) the solenoid valve to discharge the accumulated liquid in the collection chamber.

[0071] After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power.

[0072] If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after sending the pulse electrical signal (drainage command), it is determined that ice blockage has occurred. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

[0073] The intelligent sensing and processing system and method for the liquid collection cavity of an atmospheric sensing system described in this invention are described below with reference to examples.

[0074] The present invention discloses an intelligent sensing and processing system for a liquid collection chamber of an atmospheric sensing system, comprising a liquid collection chamber, a liquid level monitoring module, a control unit, a drainage actuator, an adjustable heating module (an adjustable power heating module), and a power supply module.

[0075] 1. Liquid collection chamber: Connected to pressure measuring lines such as the air velocity tube, it is used to collect liquid water from the pressure measuring lines. A drain outlet is located at its bottom or lower side. The chamber structure is optimized for fluid dynamics to facilitate liquid collection.

[0076] 2. Liquid Level Monitoring Module: Used for real-time monitoring of the liquid level in the collection chamber. This module can employ the following three preferred but non-limiting implementation schemes to ensure high reliability and high accuracy:

[0077] a. High-precision contact level sensors: probe type, float type, and other contact level sensors, preferably sensors with self-cleaning or anti-contamination design.

[0078] b. Non-contact capacitive sensor: A capacitive sensing probe is installed on the outer wall of the liquid collecting chamber, and the rise and fall of the internal liquid level is sensed non-contactly by detecting changes in the capacitance of the chamber wall. This solution avoids scaling and corrosion, has high reliability, and is the preferred solution.

[0079] c. Differential pressure level gauge: It includes a first pressure tapping point set at the bottom of the liquid collecting chamber and a second pressure tapping point set at the top of the pressure measuring pipeline or the liquid collecting chamber. It measures the pressure difference ΔP between the two points, and the control unit calculates the real-time liquid level height according to H=ΔP / (ρg).

[0080] 3. Control Unit: As the system's brain, it is electrically connected to the liquid level monitoring module, drainage actuator, and heating module. Its core function is to compare the liquid level with a preset threshold, execute corresponding control logic, output drainage control signals and adjustable heating power signals, and also has system self-diagnosis and status feedback functions.

[0081] 4. Drainage actuator: Preferably a normally closed solenoid valve, installed at the drain outlet. Under normal conditions, the drain outlet remains closed; upon receiving an opening command from the control unit, it quickly opens the valve. Utilizing the pressure difference between the inside and outside of the pressure measuring line, the accumulated liquid is discharged from the cavity at high speed.

[0082] 5. Adjustable power heating module: The heating wire is wound or attached to the outer wall of the pressure measuring pipeline, the outer wall of the liquid collection chamber, and around the drainage actuator. The control unit dynamically adjusts the power output to the heating module based on the liquid level height fed back by the liquid level monitoring module, thereby achieving intelligent thermal management.

[0083] 6. Power Module: Connects to the aircraft's power supply bus and supplies power to each module.

[0084] The control unit pre-stores a multi-mode collaborative control strategy related to the liquid level, and its core logic flow is as follows:

[0085] 1. Low liquid level / normal low power consumption anti-icing:

[0086] Status: Liquid level is below the drainage trigger threshold (liquid level trigger threshold).

[0087] Operation: The heating wire operates, and its power increases as the liquid level rises. For example, when the liquid level is 0, it corresponds to 10% to 30% of the rated power. The power increases linearly with the liquid level, reaching 80% to 100% of the rated power when the liquid level is about to reach the drainage trigger threshold.

[0088] Objective: To maintain the temperature of the pressure measuring pipeline and the outer wall of the liquid collecting chamber above the freezing point, preventing moisture from freezing inside the pressure measuring pipeline or chamber. Increasing the heating power enhances the evaporation rate of the accumulated liquid, slowing down or preventing the liquid level from rising further.

[0089] 2. Intelligent drainage and auxiliary heating mode for medium and high liquid levels:

[0090] Status: The liquid level has reached or exceeded the drainage trigger threshold.

[0091] Action: The control unit immediately performs the following actions:

[0092] a. Keep the heating wire power at a high level (e.g., 80% to 100% of the rated power).

[0093] b. Send an opening command to the drain solenoid valve.

[0094] c. After draining for a period of time or until the liquid level drops, close the solenoid valve and restore the heating power to a lower level (e.g., 10% to 30% of the rated power).

[0095] Purpose:

[0096] a. Prevent the drain outlet from freezing: Ensure that the valve and the surrounding area are at a high temperature when the solenoid valve is open to avoid jamming or poor drainage due to freezing at low temperatures.

[0097] b. Improve drainage efficiency: Heating reduces the viscosity of the liquid, making it more fluid.

[0098] 3. Fault diagnosis and enhanced de-icing mode:

[0099] Status: The system has detected that a drainage command has been issued, but the liquid level sensor shows that the liquid level has not dropped or has dropped abnormally slowly. At this time, the drain outlet may be blocked by ice.

[0100] action:

[0101] a. Maintain the heating wire at maximum power.

[0102] b. Control the solenoid valve to repeatedly attempt to open and close in an intermittent pulse manner, using thermal expansion and contraction and pressure shock to break the ice blockage.

[0103] Purpose:

[0104] a. To slow down or prevent the liquid level from rising further.

[0105] b. Melt the ice blockage and use the solenoid valve to break the ice.

[0106] Furthermore, see Figure 2 The liquid collection chamber 1 is connected to the pressure measuring pipe 2 through a pipeline, and its internal flow channel has a smooth transition, which is conducive to the liquid gathering to the bottom.

[0107] The liquid level monitoring module employs an industrial-grade non-contact capacitive sensor 3. This sensor is encapsulated in a weather-resistant housing and installed at a predetermined position on the outer wall of the liquid collection chamber 1. The control unit 6 can accurately determine the liquid level height within the chamber using a calibrated capacitive liquid level curve. This installation method completely avoids drilling holes in the pressure chamber, eliminating potential leakage risks, and the sensor does not come into contact with the accumulated liquid, resulting in extremely high lifespan and reliability.

[0108] The drainage actuator is a normally closed 2-position 2-way solenoid valve 4, whose valve body is directly connected to the bottom of the liquid collection chamber and the drain port 5 via a threaded seal. The valve body material is matched with the chamber material to ensure that the coefficients of thermal expansion are consistent.

[0109] The adjustable power heating module consists of a heating wire 8, which is evenly wound around the outside of the pressure measuring pipeline 2, the liquid collecting chamber 1, and the valve body of the solenoid valve 4, and covered with an insulation layer and a protective sleeve.

[0110] The control unit 6 uses a dedicated microprocessor (MCU)-based circuit board integrated within the shielded box of the liquid collection chamber. It internally stores the liquid level trigger threshold (preset trigger liquid level line L1) and the aforementioned intelligent heating power mapping table.

[0111] The following is an example of the working process:

[0112] During flight, moisture enters the collection chamber 1, forming liquid 7. When the liquid level is below L1, the control system is in low liquid level / normal low power consumption anti-icing mode, and the heating wire operating power increases linearly with the increase of liquid level (minimum 20%, maximum 90%).

[0113] When the liquid level rises to L1, the signal from sensor 3 is captured by control unit 6. After one second of continuous monitoring (to eliminate interference from shaking caused by turbulence), it is confirmed that the liquid level remains too high. Control unit 6 immediately switches to the intelligent drainage and auxiliary heating mode for medium-high liquid levels.

[0114] First, the heating wire power is maintained above 90%, and a pulse electrical signal lasting 0.1 seconds is sent to solenoid valve 4. Solenoid valve 4 opens instantaneously, and due to the pressure difference between the inside and outside of the pressure measuring line, the accumulated liquid 7 is discharged at high speed. The liquid level drops rapidly, and solenoid valve 4 automatically resets and closes after the pulse ends. After confirming that the liquid level is below L1, control unit 6 restores the heating power to 20%.

[0115] If the liquid level does not drop within 10 seconds after the drainage command is issued, the control unit 6 determines that it is suspected of ice blockage, activates the fault diagnosis and enhanced de-icing mode, maintains 100% heating power and attempts to control the solenoid valve with a 1Hz frequency pulse until the fault is resolved.

[0116] Meanwhile, the control unit 6 continuously sends status information to the flight control system via the data bus.

[0117] As can be seen from the above embodiments, the system and method of the present invention have at least the following advantages compared with the prior art:

[0118] 1. Proactive and intelligent: It realizes a drainage scheme with proactive perception, intelligent decision-making and precise processing, which improves the intelligence level and reliability of the pressure measurement pipeline system.

[0119] 2. Enhanced security:

[0120] a. Prevent problems before they occur by monitoring the liquid level in real time.

[0121] b. The adoption of an intelligent heating strategy, especially the preheating of the drain outlet before drainage, ensures the protection of the critical structure of the drainage system.

[0122] c. It has fault diagnosis and emergency de-icing capabilities, making the system more fault-tolerant.

[0123] 3. Energy efficiency optimization: The heating device operates at low power consumption for most of the time, reducing the overall power load of the long-duration cruise aircraft.

[0124] 4. Improved maintainability: Sends liquid collection chamber status information to the flight control system or ground maintenance system, facilitating status checks and maintenance.

[0125] The features described and / or illustrated above with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, and / or in combination with or in lieu of features in other embodiments.

[0126] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, components, or combinations thereof.

[0127] The apparatus and methods described above can be implemented in hardware or in combination with software. This invention relates to computer-readable programs that, when executed by a logic component, enable that logic component to implement the apparatus or constituent parts described above, or to implement the various methods or steps described above. This invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.

[0128] Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of the invention are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

[0129] The parts of this invention not described in detail are techniques known to those skilled in the art.

Claims

1. An intelligent sensing and processing system for a liquid collection cavity in an atmospheric sensing system, characterized in that, The intelligent sensing and processing system includes a liquid level monitoring module, a control unit, a drainage actuator, a drain outlet, and an adjustable heating module, wherein: The liquid level monitoring module is used to output monitoring data; The control unit is used to receive monitoring data from the liquid level monitoring module, determine the liquid level height in the collection chamber based on the monitoring data, compare the determined liquid level height with the liquid level trigger threshold, and control the drainage actuator and the adjustable heating module based on the comparison result. An adjustable heating module is evenly wound around the pressure measuring pipeline, the liquid collection chamber, and the outside of the drainage actuator, and is used to perform heating operations under the control of the control unit; The drainage actuator, located at the drain outlet of the liquid collection chamber, is used to switch between opening and closing under the control of the control unit.

2. The intelligent sensing and processing system according to claim 1, characterized in that, The liquid level detection module is a non-contact capacitive sensor, the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

3. The intelligent sensing and processing system according to claim 2, characterized in that, Determining the liquid level in the collection chamber based on monitoring data includes: determining the liquid level in the collection chamber based on the capacitance value output by the non-contact capacitive sensor and the pre-calibrated capacitance level curve.

4. The intelligent sensing and processing system according to claim 3, characterized in that, The control mechanism for the drainage actuator and the adjustable heating module, based on the comparison results, includes: If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level. If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

5. The intelligent sensing and processing system according to claim 4, characterized in that, Controlling the opening of the solenoid valve and controlling the adjustable heating module to perform heating operations includes: The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open the solenoid valve to drain the accumulated liquid in the collection chamber. After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power. If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after the pulse electrical signal is sent, ice blockage is detected. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

6. A method for intelligent sensing and processing of liquid collection chambers in an atmospheric sensing system, characterized in that, The intelligent sensing and processing method includes: The liquid level monitoring module outputs monitoring data. The control unit receives monitoring data from the liquid level monitoring module, determines the liquid level height in the collection chamber based on the monitoring data, compares the determined liquid level height with the liquid level trigger threshold, and controls the drainage actuator and adjustable heating module based on the comparison result. The liquid level monitoring module is set at a predetermined position on the outer wall of the liquid collection chamber. The adjustable heating module is evenly wrapped around the pressure measuring pipeline, the liquid collection chamber and the outside of the drainage actuator. The adjustable heating module performs heating operation under the control of the control unit. The drainage actuator is set at the drain outlet of the liquid collection chamber and is used to switch between opening and closing under the control of the control unit.

7. The intelligent sensing and processing method according to claim 6, characterized in that, The liquid level detection module is a non-contact capacitive sensor, the adjustable heating module is a heating wire, and the drainage actuator is a solenoid valve.

8. The intelligent sensing and processing method according to claim 7, characterized in that, Determining the liquid level in the collection chamber based on monitoring data includes: determining the liquid level in the collection chamber based on the capacitance value output by the non-contact capacitive sensor and the pre-calibrated capacitance level curve.

9. The intelligent sensing and processing method according to claim 8, characterized in that, The control mechanism for the drainage actuator and the adjustable heating module, based on the comparison results, includes: If the comparison result indicates that the determined liquid level is less than the liquid level trigger threshold, the adjustable heating module is controlled to perform a heating operation, and the operating power of the adjustable heating module increases linearly with the increase of the liquid level. If the comparison result shows that the determined liquid level height is greater than or equal to the liquid level trigger threshold and continues for a predetermined time, the solenoid valve is opened and the adjustable heating module is controlled to perform heating operation.

10. The intelligent sensing and processing method according to claim 9, characterized in that, Controlling the opening of the solenoid valve and controlling the adjustable heating module to perform heating operations includes: The adjustable heating module is controlled to perform heating operation at a power greater than or equal to 90% of the rated power, and a pulse electrical signal lasting 0.1 seconds is sent to the solenoid valve to open the solenoid valve to drain the accumulated liquid in the collection chamber. After the liquid level drops, the solenoid valve automatically resets and closes after the pulse electrical signal ends. Furthermore, if the liquid level drops below the liquid level trigger threshold, the adjustable heating module is controlled to perform heating operation at 20% of its rated power. If the liquid level remains greater than or equal to the liquid level trigger threshold within 10 seconds after the pulse electrical signal is sent, ice blockage is detected. The fault diagnosis and enhanced de-icing mode is activated, and the adjustable heating module is controlled to perform heating operation at rated power and the solenoid valve is controlled by a 1Hz frequency pulse electrical signal until the fault is resolved.

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