DEFOG FILTER SATURATION WARNING SYSTEM IN AIRCRAFT

Abstract

The invention relates to a system for determining the saturation state of a defog filter (1) of an aircraft defogging system. The system comprises a humidity sensor (2) located at the outlet of the defog filter (1), a microcontroller (3) that compares the humidity data from the humidity sensor (2) with a predefined humidity threshold value, a buzzer (4) controlled by the microcontroller (3), and an alarm (5). The humidity sensor (2) measures the humidity level at the outlet of the defog filter (1). The microcontroller (3) compares the measured humidity level with a predefined humidity threshold value and activates the buzzer (4) and alarm (5) if it determines that the measured humidity level is equal to or greater than the threshold value. In this way, the saturation state of the defog filter (1) is monitored and a warning is generated regarding the filter performance.

Description

1 TARIFF DEFOG FILTER SATURATION WARNING SYSTEM IN AIRCRAFT TECHNICAL FIELD The invention relates to the technical field of aviation systems and concerns the use of defoggers in aircraft. Monitoring the saturation status of defog filters in defogging systems It relates to integrated sensor-based warning systems. STATE OF THE ART In airplanes, cockpit and cabin windows are fog-free and designed to provide clear visibility. Protection against icing is critically important for flight safety. Current Electric heaters are used on glass surfaces to prevent fogging in applications. films, pneumatic systems based on hot air flow, and defogging for moisture retention Filters are used. In systems containing electric heating film, the temperature of the glass surface is increased to 15°C. Efforts are made to prevent condensation from forming on the surface. In pneumatic systems, however... Hot air from motors or environmental control systems is applied to the glass surface. Defog filters are directed by absorbing the moisture from the air passing through them, thus clearing the glass. It reduces the amount of moisture in the air reaching the region. However, defog filters reduce their moisture absorption capacity over time by 20%. It loses and reaches saturation. When the filter reaches saturation, the filter The moisture in the air passing through cannot be maintained at a sufficient level, and sudden moisture buildup occurs on the glass surface. Condensation may occur. In current systems, the defog filter is saturated. automatically detects its condition during flight or before maintenance and acts accordingly. There is no mechanism in place to alert the pilot or maintenance personnel accordingly. This 25 Therefore, filter replacement is mostly done through a periodic maintenance approach or manual inspection. is being done. In the current technology, moisture sensors detect moisture or condensation on the glass surface. detection, activation of windshield wipers or defogger / heater systems It can be used for the purpose of obtaining glass. However, such solutions generally use glass 30 It focuses on detecting moisture or condensation on the surface, aircraft defogging by monitoring the moisture level at the filter's outlet, the filter loses its ability to retain moisture an audible and / or visual alert indicating that it hasn't lost its power and recommending a filter change accordingly. The defog filter that forms does not describe a saturation warning system. 2 THE TECHNICAL PROBLEM THAT THE INVENTION AIMED TO SOLVE The fundamental technical problem that the invention aims to solve is defogging used in aircraft. the saturation level of the filter can be checked manually or only during periodic maintenance. Real-time monitoring of moisture level at filter outlet, regardless of temperature ranges. The aim is to ensure that it is determined as follows: 5 Another technical problem that the invention aims to solve is the moisture retention of the defog filter. If the pilot loses his ability, before sudden fogging occurs on the glass surface... and / or to ensure that maintenance personnel are alerted. Another technical problem that the invention aims to solve is the actual filter replacement process. Allowing for adjustments taking humidity levels into account, eliminating unnecessary premature filtering. 10 changes and flight safety resulting from delayed replacement of the saturated filter The goal is to reduce the risks. Another technical problem that the invention aims to solve is the existing aircraft defogging system. easy to integrate into systems, operates without increasing additional maintenance costs, and is simple. The goal is to provide a robust and reliable warning system. 15 A BRIEF DESCRIPTION OF THE INVENTION The invention is a device positioned on the outlet side of a defog filter used in aircraft. a small humidity sensor, which evaluates the humidity data received from that humidity sensor a microcontroller and at least one alert controlled by the microcontroller 20 The anti-fog filter element is a saturation warning system. In the system, humid air is passed through a defog filter, and the air coming out of the defog filter... The humidity level of the air is monitored continuously or at specific intervals by the humidity sensor. The humidity level is measured. The measured humidity level is transmitted to the microcontroller, and the microcontroller... It is compared with a predetermined threshold value. The measured humidity is 25. If the level exceeds the threshold value, it means the defog filter has reached saturation or is retaining moisture. This indicates that it has lost its capability. In this case, the microcontroller issues an audible warning. via the element and / or visual warning element to the pilot and / or maintenance personnel It warns. Thanks to this structure, the defog filter can operate at 30 different speeds depending on the actual operating conditions. The problem is resolved and loss of visibility due to fogging of the windows occurs. This allows for preventative measures to be taken before it happens. 3 DESCRIPTION OF THE FIGURES Figure 1. Top view of the anti-fog filter saturation warning system on aircraft windows. appearance Figure 2. Side view of the anti-fog filter saturation warning system on aircraft windows. View 5 REFERENCE NUMBERS OF THE PARTS IN THE FIGURES 1. Defog filter 2. Humidity sensor 3. Microcontroller 10 4. Buzzer 5. Alarm 6. Cockpit side window defroster system 7. Anti-fog pressure regulator 8. Hot air nozzles 15 9. Hot air manifold 10. Emergency exit area DETAILED DESCRIPTION OF THE INVENTION The invention is a 20-piece design used to prevent cockpit windows from fogging up in aircraft. Detecting the saturation state of the defog filter (1) and the filter saturation It relates to a system that generates an alert if detected. The system consists of a defog filter (1), humidity sensor (2), microcontroller (3), buzzer (4) and The system includes an alarm (5). The system includes the existing cockpit side window defogger installation (6), defogging pressure regulator (7), hot air nozzles (8), hot air manifold (9) and 25 It works in conjunction with the emergency exit area (10). The defog filter (1) is located in the defogging line inside the aircraft. It ensures that the moisture in the air passing through it is retained. Defog filter (1), saturation over time depending on usage time and the amount of moisture it is exposed to. It can reach. If the Defog filter (1) reaches saturation, 30 can pass through the filter. The humidity in the passing air cannot be maintained at a sufficient level. The humidity sensor (2) is located in the airflow line at the outlet of the defog filter (1). It is located on the humidity sensor (2), the air coming out of the defog filter (1) 4 It measures the humidity level. Thus, the measured humidity value is directly applied to the defog filter (1) It represents moisture retention performance. Humidity data obtained from the humidity sensor (2) is sent to the microcontroller (3) is transmitted. The microcontroller (3) converts the received humidity data to a predefined humidity It compares the measured humidity level to a threshold value. If the measured humidity level is 5 times the threshold value, it is compared to that threshold value. If it falls below this level, no warning will be generated. The measured humidity level is equal to or equal to a predefined humidity threshold value. If it is determined that it is large, the microcontroller (3) defog filter (1) It determines that it has reached saturation and activates the buzzer (4) and the alarm (5). The buzzer (4) is designed to generate an audible warning. The alarm (5) is visual 10 It is designed to generate a warning. The alarm (5) is indicated by an LED, warning lamp or equivalent It can be implemented as a visual warning element. In one application of the invention, the microcontroller (3) takes from the humidity sensor (2) It monitors the data continuously. In another application, the microcontroller (3), It can be configured to collect humidity data at specific time intervals. 15 Cockpit side window defroster system (6), defroster pressure regulator (7), hot air nozzles (8) and hot air manifold (9), available on the aircraft They are components of a defogging system. The system described in the invention is the existing system in question. It can be operated by being integrated into it. The defrost pressure regulator (7) regulates the air flow in the defrost line to 20 It ensures the regulation of the air. The air transmitted through the hot air manifold (9) is hot. The air is directed to the glass surfaces via the air nozzles (8). Defog filter (1), It is located on the aforementioned air path and traps moisture in the air. Thanks to the invention, the moisture level at the outlet of the defog filter (1) is constantly monitored. being monitored, buzzer (4) and alarm (5) 25 if filter saturation is determined A warning is generated via this method.

Claims

REQUESTS 1. Saturation of a defog filter (1) of a defogging system used in aircraft It is a system that determines the status; its characteristic is: - a humidity sensor (2) located at the outlet of the defog filter (1), 5 - humidity data received from the humidity sensor (2) to a predefined humidity threshold a microcontroller (3) that compares the value with the value, - a buzzer (4) controlled by a microcontroller (3), - an alarm (5) controlled by a microcontroller (3) including, 10 The humidity sensor (2) measures the humidity level at the outlet of the defog filter (1) and microcontroller (3) measured humidity level to the humidity threshold value If it determines that it is equal to or greater than, the buzzer (4) and the alarm (5) It is characterized by its operation.

2. The system is according to claim 1 and its features are; humidity sensor (2), defog filter (1) 15 by being positioned on the airflow line at the outlet It is characteristic.

3. The system is according to claim 1 and its feature is; the microcontroller (3), the humidity sensor (2) By monitoring the acquired humidity data, with a predefined humidity threshold value It is characterized by its comparison. 20 30

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