System and method for providing alert regarding engagement of emergency exit door of aircraft

Abstract

To provide a system and method for issuing an alert regarding the engagement of an emergency exit door of an aircraft.SOLUTION: An aircraft (106) includes a system (100) including an emergency exit door (102) within an internal cabin (104). The emergency exit door (102) includes a lever (108) configured to be engaged to open the emergency exit door (102). A first cover (110) is removably secured to the emergency exit door (102). The first cover (110) is configured to be removed to gain access to the lever (108). A second cover (112) is disposed between the lever (108) and the first cover (110). The second cover (112) is configured to be removed to gain access to the lever (108). One or more sensors (114) are configured to detect positions of the first cover (110) and the second cover (112).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] TECHNICAL FIELD

[0001] Embodiments of the present disclosure generally relate to systems and methods for providing alerts regarding the engagement of emergency exit doors on an aircraft. [Background technology]

[0002]

[0002] Vehicles such as commercial aircraft are used to transport passengers between various locations. A typical commercial aircraft includes emergency exit doors having levers configured to be pulled by an individual to open the doors in the event of an evacuation.

[0003]

[0003] Known emergency exit doors include a transparent cover placed over a lever. During an evacuation, an individual removes the transparent cover and then pulls the lever to open the emergency exit door. The transparent cover typically provides the only barrier between the lever and the passenger seating area within the interior cabin.

[0004]

[0004] A curious passenger may be intrigued by the lever of an emergency exit door. Such a passenger may easily remove the transparent cover and engage the lever, even when there is no emergency. In short, the emergency exit door can be accidentally opened simply by removing the transparent cover and pulling the lever. When the emergency exit door is opened, an alarm sounds, thereby notifying the flight crew and passengers that the emergency exit door has been opened.

[0005]

[0005] As can be appreciated, the inadvertent or accidental opening of an emergency exit door can cause anxiety for passengers and crew. Furthermore, such an opening of an emergency exit door can cause flight delays. Summary of the Invention

[0006] What is needed is a system and method for providing an alert regarding an attempted engagement of an emergency exit door. Additionally, what is needed is a system and method for notifying individuals within the interior cabin of an aircraft of the engagement of an emergency exit door before the emergency exit door is opened.

[0007] With this need in mind, certain embodiments of the present disclosure provide a system including an emergency exit door for an interior cabin of an aircraft. The emergency exit door includes a lever configured to be engaged to open the emergency exit door. A first cover is removably secured to the emergency exit door. The first cover is configured to be removed to access the lever. A second cover is disposed between the lever and the first cover. The second cover is configured to be removed to access the lever.

[0008] In at least one embodiment, the system also includes one or more sensors configured to detect the positions of the first cover and the second cover. In a further embodiment, the one or more sensors include one or more first sensors configured to detect the first cover and one or more second sensors configured to detect the second cover.

[0009] In at least one embodiment, the system also includes an alert device configured to output one or more alerts in response to removal of the first cover and the second cover. The alert device may be secured to the emergency exit door. The alert device may include a speaker and / or a light.

[0010] The one or more alerts may include a first alert in response to removal of the first cover and a second alert in response to removal of the second cover, the first alert being different from the second alert.

[0011] In at least one embodiment, the system also includes a control unit in communication with the one or more sensors, the control unit configured to output one or more alert signals in response to removal of the first cover and the second cover.

[0012]

[0012] The first cover may include an outer frame surrounding the transparent sheet, and the second cover may include a flat panel having an opening.

[0013]

[0013] Certain embodiments of the present disclosure provide a vehicle, such as an aircraft, including an interior cabin and systems as described herein.

[0014] Certain embodiments of the present disclosure provide a system including an emergency exit door for an interior cabin of an aircraft. The emergency exit door includes a lever configured to be engaged to open the emergency exit door. One or more covers are removably secured to the emergency exit door. The one or more covers are configured to be removed to access the lever. One or more sensors are configured to detect the positions of the first cover and the second cover.

[0015] Certain embodiments of the present disclosure include removably securing a first cover to an aircraft emergency exit door, the first cover configured to be removed to access a lever, and removably securing a second cover between the lever and the first cover, the second cover configured to be removed to access the lever. In at least one embodiment, the method also includes detecting positions of the first cover and the second cover with one or more sensors. In at least one embodiment, the method also includes outputting one or more alerts in response to removal of the first cover and the second cover with an alert device. In at least one embodiment, the method also includes outputting one or more alert signals in response to removal of the first cover and the second cover with a control unit in communication with the one or more sensors. [Brief explanation of the drawings]

[0016] [Figure 1]

[0016] A block diagram of a system according to one embodiment of the present disclosure is shown. [Figure 2]

[0017] 1 shows a flowchart of a method according to one embodiment of the present disclosure. [Figure 3]

[0018] 1 illustrates a perspective front view of an aircraft according to one embodiment of the present disclosure. [Figure 4A]

[0019] 1 illustrates a top view of an interior cabin of an aircraft, according to one embodiment of the present disclosure. [Figure 4B]

[0020] 1 illustrates a top view of an interior cabin of an aircraft, according to one embodiment of the present disclosure. [Figure 5]

[0021] 1 illustrates a perspective interior view of an interior cabin of an aircraft, according to one embodiment of the present disclosure. [Figure 6]

[0022] 1 illustrates an isometric front view of an emergency exit door according to one embodiment of the present disclosure. [Figure 7]

[0023] FIG. 7 shows a front view of the emergency exit door of FIG. 6. [Figure 8]

[0024] 1 illustrates an isometric front view of an emergency exit door according to one embodiment of the present disclosure. [Figure 9]

[0025] 1 illustrates a front view of an alert device according to one embodiment of the present disclosure. [Figure 10]

[0026] 1 illustrates a front view of a system with a first cover removed, according to one embodiment of the present disclosure. [Figure 11]

[0027] 1 illustrates a front view of a system with a second cover removed, according to one embodiment of the present disclosure. [Figure 12]

[0028] 1 illustrates a front view of a lever within a recess in an emergency exit door according to one embodiment of the present disclosure. [Figure 13]

[0029] FIG. 2 shows a schematic block diagram of a control unit according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0017]

[0030] The foregoing summary, as well as the following detailed description of certain embodiments, will be better understood when read in conjunction with the accompanying drawings. As used herein, it should be understood that the use of the singular form of an element or step following "a" or "an" does not necessarily exclude a plurality of such elements or steps. Furthermore, references to "one embodiment" are not intended to be interpreted as excluding the existence of additional embodiments, such additional embodiments also incorporating the described features. Furthermore, unless expressly stated to the contrary, embodiments "comprising" or "having" one or more elements having particular conditions may include additional elements that do not have such conditions.

[0018]

[0031] 1 illustrates a block diagram of a system 100 according to one embodiment of the present disclosure. The system 100 includes an emergency exit door 102 within an interior cabin 104 of an aircraft 106. The emergency exit door 102 may be located adjacent to (e.g., over a portion of) a wing of the aircraft 106. The emergency exit door 102 is configured to move between a closed position and an open position.

[0019]

[0032] The emergency exit door 102 includes a lever 108 configured to be engaged, such as grasped and pulled, by an individual to open the emergency exit door 102. A first cover 110 is disposed over the lever 108. A second cover 112 is disposed between the lever 108 and the first cover 110. To engage the lever 108, the first cover 110 and the second cover 112 are removed to allow access to the lever 108.

[0020]

[0033] One or more sensors 114 are proximate to the first cover 110 and the second cover 112. For example, the one or more first sensors 114 are proximate to the first cover 110 and the one or more second sensors 114 are proximate to the second cover 112. The sensor(s) 114 are configured to detect when the first cover 110 and the second cover 112 are removed. In at least one embodiment, the sensors 114 are mounted on and / or within the emergency exit door 102.

[0021]

[0034] In at least one embodiment, the sensor 114 is a proximity sensor configured to detect the position of the first cover 110 and the second cover 112. For example, the sensor 114 may be an ultrasonic sensor. As another example, the sensor 114 may be an infrared sensor. As another example, the sensor 114 may be an inductive, capacitive, or photoelectric sensor. As another example, the sensor 114 may be a mechanical sensor, such as may include a spring, detent, or the like, configured to detect pressure.

[0022]

[0035] The sensors 114 communicate with a control unit 116, such as via one or more wired or wireless connections. The control unit 116 may be located on or within the exit door 102. As another example, the control unit 116 may be remote from the exit door 102, such as on or within a frame, wall, ceiling, floor, etc.

[0023]

[0036] In at least one embodiment, the alert device 118 also communicates with the control unit 116, such as via one or more wired or wireless connections. The alert device 118 may be fixed to the emergency exit door 102 (e.g., mounted or otherwise positioned on or within the emergency exit door 102), such as facing a passenger seating area of the interior cabin 104. Optionally, the alert device 118 may be remote from the emergency exit door 102, such as on or within a frame, wall, ceiling, floor, etc. For example, the alert device 118 may be within a cockpit, cockpit area, galley, crew rest area, etc.

[0024]

[0037] In at least one embodiment, alert device 118 includes a speaker 120 and a light 122. Speaker 120 is configured to broadcast an audio signal within interior cabin 104. Light 122 may be one or more of an incandescent lamp, one or more light emitting diodes (LEDs), a strobe light, etc. Optionally, alert device 118 may include only one of speaker 120 or light 122.

[0025]

[0038] Optionally, the system 100 may not include the alert device 118. Instead, the control unit 116 may communicate with computers, handheld devices, or the like, of the crew of the aircraft 106, or the like.

[0026]

[0039] Optionally, system 100 may not include control unit 116. Instead, sensor(s) 114 may be configured to communicate with alert device 118 and automatically trigger alert device 118 in response to detected changes in first cover 110 and / or second cover 112.

[0027]

[0040] During operation, the sensor(s) 114 detect when the first cover 110 and the second cover 112 are in the covered position. For example, the sensor(s) 114 detect the distance between the first cover 110 and the second cover 112 when they are in the covered position. The sensor(s) 114 output a cover signal related to the cover position of the first cover 110 and the second cover 112. When the first cover 110 and the second cover 112 are in the removed position, the sensor(s) 114 detect a change in the distance associated with the first cover 110 and the second cover 112. In response to this change, the sensor(s) 114 output a removal signal to the control unit 116 indicating that the first cover 110 and / or the second cover 112 has been removed. In at least one embodiment, the sensor(s) 114 do not output a cover signal. Instead, in this embodiment, the sensor(s) 114 simply outputs a removal signal in response to detecting that the first cover 110 and / or the second cover 112 has been removed.

[0028]

[0041] When the first cover 110 is removed, the sensor(s) 114 output a first removal signal to the control unit 116. In response to receiving the first removal signal, the control unit 116 outputs a first alert signal to the alert device 118. The first alert signal causes the alert device 118 to provide a first alert, such as a first alert broadcast via the speaker 120 and / or a first illuminated indication indicated by the light 122. For example, the first alert may be an audible message indicating that the first cover 110 has been removed and the emergency exit door 102 has been engaged. The first alert is configured to notify individuals within the interior cabin 104 that they are attempting to engage the emergency exit door 102. This may discourage the individuals from further engagement if there is no emergency and / or may allow other people to persuade the individuals to refrain from engaging the emergency exit door 102.

[0029]

[0042] If the individual continues to engage the emergency exit door 102 by engaging and removing the second cover 112 to access the lever 108, the sensor(s) 114 output a second removal signal to the control unit 116. In response to receiving the second removal signal, the control unit 116 outputs a second alert signal to the alert device 118. The second alert signal causes the alert device 118 to provide a second alert, such as a second alert broadcast via the speaker 120 and / or a second illuminated indication shown by the light 122. For example, the second alert can be an audible message indicating that the second cover 112 has been removed and the emergency exit door 102 has been engaged. The second alert can be of increased intensity than the first alert. For example, the second alert can be louder (as broadcast via the speaker 120) and / or brighter (e.g., an illuminated flashing light) than the first alert. The second alert is configured to notify individuals within the interior cabin 104 that they are attempting to further engage the emergency exit door 102. This may allow the individuals to refrain from further engagement if there is no emergency and / or may allow other people to persuade the individuals to refrain from engaging the emergency exit door 102.

[0030]

[0043] If the individual continues to engage the emergency exit door 102 by grasping and pulling the lever, the control unit 116 (which may be in communication with the lever 108, such as via one or more wired or wireless connections) outputs an open signal to the alert device 118. The open signal causes the alert device 118 to provide a third or open alert, as broadcast via speaker 120 and / or indicated via light 122, indicating that the emergency exit door 102 has been opened.

[0031]

[0044] As described herein, in at least one embodiment, a system 100 includes an emergency exit door 102 for an interior cabin 104 of an aircraft 106. The emergency exit door 102 includes a lever 108 configured to be engaged to open the emergency exit door 102. A first cover 110 is removably secured to the emergency exit door 102. The first cover 110 is configured to be removed to access the lever 108. A second cover 112 is disposed between the lever 108 and the first cover 110. The second cover 112 is configured to be removed to access the lever 108.

[0032]

[0045] One or more sensors 114 are configured to detect the positions of the first cover 110 and the second cover 112. For example, the one or more first sensors are configured to detect the first cover 110, and the one or more second sensors are configured to detect the second cover 112.

[0033]

[0046] An alert device 118 is configured to output one or more alerts in response to the removal of the first cover 110 and the second cover 112. The alert device 118 includes one or both of a speaker 120 or a light 122. The alerts may include a first alert in response to the removal of the first cover 110 and a second alert in response to the removal of the second cover 112. The first alert is different from the second alert.

[0034]

[0047] In at least one embodiment, a control unit 116 is in communication with the sensor 114. The control unit 116 is configured to output one or more alert signals in response to the removal of the first cover 110 and the second cover 112.

[0035]

[0048] 2 shows a flowchart of a method according to one embodiment of the present disclosure. Referring to FIG. 1 and FIG. 2, at 130, the position of the first cover 110 is detected by the sensor(s) 114. At 132, the control unit 116 determines, via communication with the sensor(s) 114, whether the first cover 110 is in the first cover position. If the first cover 110 is in the first cover position, the method returns to 130.

[0036]

[0049] However, if the first cover 110 is not in the first cover position (e.g., in the first removed position), the method proceeds from 132 to 134, where the control unit 116 provides a first alert via the alert device 118. The first alert may be an audio signal broadcast via the speaker 120 and / or an illumination indicated by the light 122 (such as an illuminated colored illumination signal, a blinking or flashing illumination signal, etc.).

[0037]

[0050] At 136, the position of the second cover 112 (which is positioned closer to the lever 108 than the first cover 110) is detected by the sensor(s) 114. At 138, the control unit 116 determines, via communication with the sensor(s) 114, whether the second cover 112 is in the second cover position. If the second cover 112 is in the second cover position, the method returns to 136.

[0038]

[0051] However, if second cover 112 is not in the second cover position (e.g., in the second removed position), the method proceeds from 138 to 140, where control unit 116 provides a second alert via alert device 118. The second alert differs from the first alert and may be an audio signal broadcast via speaker 120 and / or an illumination indicated by light 122 (such as an illuminated colored illumination signal, a blinking or flashing illumination signal, etc.).

[0039]

[0052] The position of the lever 108 is then detected at 142. At 144, the control unit 116 determines whether the emergency exit door 102 is open, such as through communication with the lever 108. If not, the method returns to 142. If so, the method proceeds from 144 to 146, where the control unit 116 provides a third alert via the alert device 118. The third alert may be a door-open alert. Optionally, the method may not include steps 142-146. Also, alternatively, the method may not include steps 136-140.

[0040]

[0053] 3 illustrates a perspective front view of an aircraft 210 according to one embodiment of the present disclosure. The aircraft 210 is an embodiment of the aircraft 106 shown in FIG. 1. The aircraft 210 includes a propulsion system 212 including, for example, engines 214. Optionally, the propulsion system 212 may include more engines 214 than are shown. The engines 214 are supported by wings 216 of the aircraft 210. In other embodiments, the engines 214 may be supported by a fuselage 218 and / or a tail section 220. The tail section 220 may also support a horizontal stabilizer 222 and a vertical stabilizer 224.

[0041]

[0054] Fuselage 218 of aircraft 210 defines interior cabin 230, which may include a cockpit, one or more work sections (e.g., a galley, a crew baggage area, etc.), one or more passenger sections (e.g., first class, business class, and economy class), one or more lavatories, etc. Interior cabin 230 is one example of interior cabin 104 as shown in FIG. 1 .

[0042]

[0055] Alternatively, instead of aircraft, embodiments of the present disclosure may be used with a variety of other vehicles, such as automobiles, buses, locomotives and trains, ships, etc. Additionally, embodiments of the present disclosure may be used with fixed structures, such as commercial and residential buildings.

[0043]

[0056] FIG. 4A illustrates a top view of an interior cabin 230 of an aircraft, according to one embodiment of the disclosure. The interior cabin 230 may be within a fuselage 232 of the aircraft, such as the fuselage 218 of FIG. 3 . For example, one or more fuselage walls may define the interior cabin 230. The interior cabin 230 includes multiple areas, including a forward section 233, a first class section 234, a business class section 236, one or more galleys 238, an extended economy or coach section 240, a standard economy or coach section 242, and an aft section 244. It should be understood that the interior cabin 230 may include more or fewer areas than shown. For example, the interior cabin 230 may not include a first class section or may include more or fewer galleys than shown. Each section may be separated by a cabin transition area 246, which may include a class divider assembly between aisles.

[0044]

[0057] 4A, interior cabin 230 includes two passageways 250 and 252 that lead to aft section 244. Optionally, interior cabin 230 may have fewer or more passageways than shown. For example, interior cabin 230 may include a single passageway extending through the center of interior cabin 230 that leads to aft section 244.

[0045]

[0058] The emergency exit door 102 is located within the interior cabin 230. The emergency exit door 102 is configured as shown and described herein.

[0046]

[0059] 4B illustrates a top view of an interior cabin 260 of an aircraft, according to one embodiment of the disclosure. Interior cabin 260 is one embodiment of interior cabin 230 shown in FIG. 3. Interior cabin 260 may be within a fuselage 261 of the aircraft. For example, one or more fuselage walls may define interior cabin 260. Interior cabin 260 includes multiple areas, including a main cabin 262 having passenger seats and an aft section 265 behind main cabin 262. It should be understood that interior cabin 260 may include more or fewer areas than shown.

[0047]

[0060] The interior cabin 260 may include a single passageway 264 that leads to the aft section 265. The single passageway 264 may extend through the center of the interior cabin 260 that leads to the aft section 265. For example, the single passageway 264 may be coaxially aligned with a mid-longitudinal plane of the interior cabin 260. The passageway may optionally be offset from the centerline of the fuselage.

[0048]

[0061] The emergency exit door 102 is located within the interior cabin 260. The emergency exit door 102 is configured as shown and described herein.

[0049]

[0062] FIG. 5 illustrates a perspective interior view of an interior cabin 281 of an aircraft, according to one embodiment of the present disclosure. Interior cabin 281 is one embodiment of interior cabin 104 shown in FIG. 1. Interior cabin 281 includes an outboard wall 283 connected to a ceiling 285. Windows 287 may be formed in outboard wall 283. A floor 288 supports a row of seats 289. As shown in FIG. 5, row 290 may include two seats 289 on either side of aisle 291. However, row 290 may include more or fewer seats 289 than shown. Additionally, interior cabin 281 may include more aisles than shown.

[0050]

[0063] Overhead bin assemblies 293 are secured to the ceiling 285 and / or outboard wall 283. The overhead bin assemblies 293 are secured above the seats 289. The overhead bin assemblies 293 extend between the forward and aft ends of the interior cabin 281. Each overhead bin assembly 293 may include a swivel box or bucket 295 pivotally secured to the strongback. The overhead bin assemblies 293 are configured to pivot open, for example, to accommodate passenger carry-on baggage or personal belongings.

[0051]

[0064] Figure 6 illustrates an isometric front view of an emergency exit door 102 according to one embodiment of the present disclosure. Figure 7 illustrates a front view of the emergency exit door 102 of Figure 6. Referring to Figures 6 and 7, the emergency exit door 102 includes a body 300 having a front face 302 and a rear face 304 opposite the front face 302. When the emergency exit door 102 is in a closed position, the front face 302 is disposed toward the passenger seating area of the interior cabin, while the rear face 304 is disposed toward the exterior of the aircraft.

[0052]

[0065] In at least one embodiment, a window 306 is formed in the emergency exit door 102. The window 306 is disposed in a channel that passes between the front face 302 and the rear face 304.

[0053]

[0066] The first cover 110 is disposed above the window 306. The first cover 110 includes an outer frame 310 surrounding a transparent sheet 312 formed of transparent plastic, glass, or the like. The transparent sheet 312 is transparent and can be seen through. Thus, the second cover 112 is visible through the transparent sheet 312. The second cover 112 may be a flat panel 320 having a plurality of openings 322 formed therethrough. The flat panel 320 may be formed of, for example, plastic and / or metal. The openings 322 allow at least a portion of the lever 108 to be seen through the openings 322. Optionally, the flat panel 320 may not include the openings 322.

[0054]

[0067] The second cover 112 may also include an engagement member configured to be grasped and pulled by an individual. The engagement member may extend outward from the flat panel 320 toward the first cover 110 in the covered position. The engagement member may be a handle, a strap, a string, a cable, or the like.

[0055]

[0068] As shown, the lever 108 is disposed within a recess 330 (e.g., a pocket) formed in the main body 300. The second cover 112 is disposed within and / or over the recess 330. When the second cover 112 is in the covering position (as shown in FIG. 6 ), the second cover 112 is disposed between the lever 108 and the first cover 110. The first cover 110, in the covering position, is disposed over the second cover 112, such as over and around the recess 330.

[0056]

[0069] A first sensor 114a is fixed to the body 300. The first sensor 114a may be fixed to the body 300 surrounding the transparent sheet 312. The first sensor 114a is configured to detect the position of the first cover 110. One or more additional first sensors 114a may also be used. Although not visible in FIGS. 6 and 7, a second sensor 114b is also fixed to the body 300 and configured to detect the position of the second cover 112. One or more additional second sensors 114b may also be used.

[0057]

[0070] 8 shows an isometric front view of the emergency exit door 102, according to one embodiment of the present disclosure. In this embodiment, the alert device 118 may be secured to the front face 302, such as offset from the side of the first cover 110. Optionally, the alert device 118 may be secured to other structures within the interior cabin.

[0058]

[0071] 9 shows a front view of alert device 118, according to one embodiment of the present disclosure. In at least one embodiment, alert device 118 includes a housing 400 that holds speaker 120 and light 122. Optionally, speaker 120 and / or light 122 may be mounted directly to front surface 302 (shown in FIG. 8) without a separate housing.

[0059]

[0072] 10 illustrates a front view of the system 100 with the first cover 110 removed, according to one embodiment of the present disclosure. As shown, the system 100 may include two or more first sensors 114a configured to detect the position of the first cover 110.

[0060]

[0073] 11 illustrates a front view of the system 100 with the second cover 112 removed, according to one embodiment of the present disclosure. As shown, the system 100 may include two or more second sensors 114b configured to detect the position of the second cover 112.

[0061]

[0074] 12 illustrates a front view of the lever 108 within the recess 330 of the emergency exit door 102, according to one embodiment of the present disclosure. In at least one embodiment, the system 100 includes two first sensors 114a on the front surface 302 (outside the recess 330) configured to detect the position of the first cover 110 (e.g., as shown in FIGS. 8 and 10). The system 100 also includes two second sensors 114b within the recess 330 configured to detect the position of the second cover 112 (as shown in FIGS. 8, 10, and 11). The system 100 may include fewer or more sensors than shown. Additionally, the sensors may be located in different locations than shown.

[0062]

[0075] 13 illustrates a schematic block diagram of a control unit 116, according to one embodiment of the present disclosure. In at least one embodiment, the control unit 116 includes at least one processor 401 in communication with a memory 402. The memory 402 stores instructions 404, received data 406, and generated data 408. The control unit 116 illustrated in FIG. 13 is merely exemplary and non-limiting.

[0063]

[0076] As used herein, terms such as "control unit," "central processing unit," "CPU," "computer," and the like may include any processor-based or microprocessor-based system, including systems using microcontrollers, reduced instruction set computers (RISC), application specific integrated circuits (ASIC), logic circuits, and any other circuits or processors, including hardware, software, or a combination thereof, capable of performing the functions described herein. The above examples are illustrative only and are thus not intended to limit in any way the definition and / or meaning of the above terms. For example, control unit 116 may be or include one or more processors configured to control operations as described herein.

[0064]

[0077] The control unit 116 is configured to execute a set of instructions stored in one or more data storage units or elements (such as one or more memories) to process data. For example, the control unit 116 may include or be coupled to one or more memories. The data storage units may also store data or other information as desired or needed. The data storage units may take the form of an information source or a physical memory element within a processing machine.

[0065]

[0078] The set of instructions may include various commands that instruct the control unit 116 as a processing machine to perform particular operations (e.g., methods and processes of various embodiments of the subject matter described herein). The set of instructions may take the form of a software program. The software may take various forms such as system software or application software. Further, the software may take the form of a collection of separate programs, a program subset within a larger program, or a portion of a program. The software may also include modular programming in the form of object-oriented programming. The processing of input data by the processing machine may be in response to user commands, in response to results of previous processing, or in response to a request made by another processing machine.

[0066]

[0079] The diagrams of the embodiments herein may depict one or more control or processing units, such as the control unit 116. It should be understood that this processing or control unit may represent a circuit, circuitry, or portion thereof, that may be implemented as hardware having associated instructions (e.g., software stored on a tangible, non-transitory computer-readable storage medium such as a computer hard drive, ROM, RAM, etc.) that perform the operations described herein. The hardware may include state machine circuitry hardwired to perform the functions described herein. Optionally, the hardware may include electronic circuitry including and / or connected to one or more logic-based devices, such as a microprocessor, processor, controller, etc. Optionally, the control unit 116 may represent processing circuitry, such as a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), microprocessor(s), etc. The circuitry in various examples may be configured to execute one or more algorithms to perform the functions described herein. Such one or more algorithms, whether or not explicitly identified in a flowchart or method, may comprise aspects of the embodiments disclosed herein.

[0067]

[0080] As used herein, the terms "software" and "firmware" are used interchangeably and include any computer program stored in a data storage unit (e.g., one or more memories) for execution by a computer, including RAM memory, ROM memory, EPROM memory, EEPROM memory, and non-volatile RAM (NVRAM) memory. The types of data storage units listed above are merely exemplary and thus not limiting as to the types of memory that may be used for storing computer programs.

[0068]

[0081] 1-13 , as described herein, embodiments of the present disclosure provide systems and methods configured to prevent the unwanted opening of an emergency exit door 102. The systems and methods are efficient, effective, safe, reliable, and compliant with regulations promulgated by authorities such as the Federal Aviation Administration (FAA). The systems and methods are configured to detect the unwanted opening of an emergency exit door.

[0069]

[0082] In at least one embodiment, the systems and methods described herein provide a two-stage alarm with one or more first sensors 114a positioned between the front face 302 and the first cover 110. When the sensor(s) detect movement of the first cover 110, the alert device 118 outputs a first alert (which may take the form of a ringing sound, a bright flashing light, or the like) that notifies passengers and crew of the engagement of the emergency exit door 102. In a second stage, if an individual still persists in removing the second cover 112 to open the emergency exit door 102, one or more second sensors 114b detect movement of the second cover 112 and the alert device 118 outputs a second alert, which may be more intensified than the first alert.

[0070]

[0083] The systems and methods described herein are configured to notify passengers and crew of unwanted attempts to open emergency exit doors, allowing them to respond before the emergency exit doors are actually opened. Thus, the systems and methods described herein prevent injury to individuals and damage to the aircraft.

[0071]

[0084] Furthermore, the present disclosure includes embodiments according to the following clauses:

[0072]

[0085] Article 1. an emergency exit door for an interior cabin of an aircraft, the emergency exit door comprising a lever configured to be engaged to open said emergency exit door; a first cover removably secured to the emergency exit door, the first cover configured to be removed to access the lever; and a second cover disposed between the lever and the first cover, the second cover configured to be removed to access the lever.

[0073]

[0086] Article 2. 10. The system of claim 1, further comprising one or more sensors configured to detect the position of the first cover and the second cover.

[0074]

[0087] Article 3. The one or more sensors one or more first sensors configured to detect the first cover; and 3. The system of claim 2, including one or more second sensors configured to detect the second cover.

[0075]

[0088] Article 4. 4. The system of clause 2 or 3, further comprising an alert device configured to output one or more alerts in response to removal of the first cover and the second cover.

[0076]

[0089] Article 5. 5. The system of claim 4, wherein the alert device is fixed to the emergency exit door.

[0077]

[0090] Article 6. 6. The system of clause 4 or 5, wherein the alert device includes one or both of a speaker or a light.

[0078]

[0091] Article 7. 7. The system of any one of clauses 4 to 6, wherein the one or more alerts include a first alert in response to removal of the first cover and a second alert in response to removal of the second cover.

[0079]

[0092] Article 8. 8. The system of clause 7, wherein the first alert is different from the second alert.

[0080]

[0093] Article 9. The system of any one of clauses 2 to 8, further comprising a control unit in communication with the one or more sensors, the control unit configured to output one or more alert signals in response to removal of the first cover and the second cover.

[0081]

[0094] Article 10. 10. The system of any one of clauses 1 to 9, wherein the first cover comprises an outer frame surrounding a transparent sheet.

[0082]

[0095] Article 11. 11. The system of any one of clauses 1 to 10, wherein the second cover comprises a flat panel having an opening.

[0083]

[0096] Article 12. Interior cabin, as well as 1. An aircraft comprising a system, the system comprising: an emergency exit door within the interior cabin, the emergency exit door comprising a lever configured to be engaged to open the emergency exit door; a first cover removably secured to the emergency exit door, the first cover configured to be removed to access the lever; a second cover disposed between the lever and the first cover, the second cover configured to be removed to access the lever; one or more sensors configured to detect the position of the first cover and the second cover; a control unit in communication with the one or more sensors, the control unit configured to output one or more alert signals in response to removal of the first cover and the second cover; and an alert device configured to output one or more alerts in response to removal of the first cover and the second cover;

[0084]

[0097] Article 13. The one or more sensors one or more first sensors configured to detect the first cover; and 13. The aircraft of clause 12, including one or more second sensors configured to detect the second cover.

[0085]

[0098] Article 14. 14. The aircraft of clause 12 or 13, wherein the alert device is fixed to the emergency exit door.

[0086]

[0099] Article 15. 15. The aircraft of any one of clauses 12 to 14, wherein the alert device includes one or both of a speaker or a light.

[0087]

[0100] Article 16. 16. The aircraft of any one of clauses 12 to 15, wherein the one or more alerts include a first alert in response to the removal of the first cover and a second alert in response to the removal of the second cover, the first alert being different from the second alert.

[0088]

[0101] Article 17. 17. The aircraft of any one of clauses 12 to 16, wherein the first cover comprises an outer frame surrounding a transparent sheet and the second cover comprises a flat panel having an opening.

[0089]

[0102] Article 18. an emergency exit door for an interior cabin of an aircraft, the emergency exit door comprising a lever configured to be engaged to open said emergency exit door; one or more covers removably secured to the emergency exit door, the one or more covers configured to be removed to access the lever; and The system includes one or more sensors configured to detect the position of the first cover and the second cover.

[0090]

[0103] Article 19. The one or more covers are: a first cover removably secured to the emergency exit door, the first cover configured to be removed to access the lever; and a second cover disposed between the lever and the first cover, the second cover configured to be removed to access the lever; The one or more sensors one or more first sensors configured to detect the first cover; and 19. The system of clause 18, including one or more second sensors configured to detect the second cover.

[0091]

[0104] Article 20. a control unit in communication with the one or more sensors, the control unit configured to output one or more alert signals in response to removal of the first cover and the second cover; and 19. The system of clause 18, further comprising an alert device configured to output one or more alerts in response to removal of the first cover and the second cover, the alert device including one or both of a speaker or a light.

[0092]

[0105] Article 21.

[0106] Removably securing a first cover to an emergency exit door of an aircraft, the first cover configured to be removed to access a lever; and

[0107] detachably securing a second cover between the lever and the first cover, the second cover configured to be removed to access the lever.

[0093]

[0108] Article 22. 22. The method of clause 21, further comprising detecting the position of the first cover and the second cover with one or more sensors.

[0094]

[0109] Article 23. 23. The method of clause 21 or 22, further comprising outputting, by an alert device, one or more alerts in response to removal of the first cover and the second cover.

[0095]

[0110] Article 24. 24. The method of any one of clauses 21 to 23, further comprising outputting, by a control unit in communication with the one or more sensors, one or more alert signals in response to removal of the first cover and the second cover.

[0096]

[0111] As described herein, embodiments of the present disclosure provide systems and methods for providing an alert regarding an attempted engagement of an emergency exit door. Additionally, embodiments of the present disclosure provide systems and methods for notifying individuals within the interior cabin of an aircraft of the engagement of an emergency exit door before the emergency exit door is opened.

[0097]

[0112] For purposes of describing the embodiments of the present disclosure, various spatial and directional terms may be used, such as top, bottom, lower, center, lateral, horizontal, vertical, front, etc., but it should be understood that such terms are used solely with reference to the orientations shown in the drawings. These orientations may be flipped, rotated, or otherwise changed so that top becomes bottom, rear becomes front or vice versa, horizontal becomes vertical, etc.

[0098]

[0113] As used herein, a structure, limitation, or element that is "configured to" perform an task or operation is structurally shaped, configured, or adapted specifically to correspond to the task or operation. For clarity and to avoid doubt, an object that can merely be modified to perform a task or operation is not "configured / set up to" perform a task or operation as used herein.

[0099]

[0114] It should be understood that the above description is intended to be illustrative, not limiting. For example, the above-described embodiments (and / or aspects thereof) can be used in combination with each other. In addition, many modifications can be made to the teachings of various embodiments of the present disclosure to adapt to particular situations or materials without departing from the scope of such embodiments. While the dimensions and types of materials set forth herein are intended to define the parameters of various embodiments of the present disclosure, these embodiments are in no way limiting, but rather exemplary. Many other embodiments will be apparent to those skilled in the art upon reviewing the above description. The scope of the various embodiments of the present disclosure should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims and this Detailed Description, the words "including" and "in which" are used as the plain English equivalents of the words "comprising" and "wherein," respectively. Furthermore, terms such as "first," "second," and "third" are used merely as labels and are not intended to impose numerical requirements on their objects. Moreover, the limitations of the following claims are not written in means-plus-function form, and are not intended to be construed under 35 U.S.C. §112(f) unless such claim limitations expressly use the phrase "means for," followed by a statement of function lacking further structure.

[0100]

[0115] This specification uses examples to disclose various embodiments of the present disclosure, including the best mode, and also enables those skilled in the art to practice various embodiments of the present disclosure, including making and using any device or system, and performing any integrated method. The patentable scope of various embodiments of the present disclosure is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements that have only insignificant differences from the literal language of the claims.

Claims

1. an emergency exit door (102) for an interior cabin (104, 230) of an aircraft (106, 210), the emergency exit door (102) comprising a lever (108) configured to be engaged to open the emergency exit door (102); a first cover (110) removably secured to the emergency exit door (102), the first cover (110) being configured to be removed to access the lever (108); and A system (100) comprising a second cover (112) disposed between the lever (108) and the first cover (110), the second cover (112) being configured to be removed to provide access to the lever (108).

2. The system (100) of claim 1, further comprising one or more sensors (114) configured to detect the position of the first cover (110) and the second cover (112).

3. The one or more sensors (114) one or more first sensors (114) configured to detect the first cover (110); and The system (100) of claim 2, comprising one or more second sensors (114) configured to detect the second cover (112).

4. 3. The system of claim 2, further comprising an alert device configured to output one or more alerts in response to removal of the first cover and the second cover.

5. The system (100) of claim 4, wherein the alert device (118) is fixed to the emergency exit door (102).

6. The system (100) of claim 4, wherein the alert device (118) includes one or both of a speaker (120) or a light (122).

7. 5. The system (100) of claim 4, wherein the one or more alerts include a first alert in response to removal of the first cover (110) and a second alert in response to removal of the second cover (112).

8. The system (100) of claim 7, wherein the first alert is different from the second alert.

9. 3. The system of claim 2, further comprising a control unit in communication with the one or more sensors, the control unit configured to output one or more alert signals in response to removal of the first cover and the second cover.

10. The system (100) of claim 1, wherein the first cover (110) comprises an outer frame surrounding a transparent sheet.

11. The system (100) of claim 1, wherein the second cover (112) comprises a flat panel having an opening.

12. an interior cabin (104, 230); and An aircraft (106, 210) comprising a system (100), the system (100) comprising: an emergency exit door (102) in the interior cabin (104, 230), the emergency exit door (102) comprising a lever (108) configured to be engaged to open the emergency exit door (102); a first cover (110) removably secured to the emergency exit door (102), the first cover (110) being configured to be removed to access the lever (108); a second cover (112) disposed between the lever (108) and the first cover (110), the second cover (112) being configured to be removed to provide access to the lever (108); one or more sensors (114) configured to detect the position of the first cover (110) and the second cover (112); a control unit (116) in communication with the one or more sensors (114), the control unit (116) configured to output one or more alert signals in response to removal of the first cover (110) and the second cover (112); and An aircraft (106, 210) comprising an alert device (118) configured to output one or more alerts in response to removal of the first cover (110) and the second cover (112).

13. The one or more sensors (114) one or more first sensors (114) configured to detect the first cover (110); and The aircraft (106, 210) of claim 12, including one or more second sensors (114) configured to detect the second cover (112).

14. 13. The aircraft (106, 210) of claim 12, wherein the alert device (118) is fixed to the emergency exit door (102).

15. The aircraft (106, 210) of claim 12, wherein the alert device (118) includes one or both of a speaker (120) or a light (122).

16. 13. The aircraft of claim 12, wherein the one or more alerts include a first alert in response to removal of the first cover and a second alert in response to removal of the second cover, the first alert being different from the second alert.

17. 13. The aircraft of claim 12, wherein the first cover comprises an outer frame surrounding a transparent sheet and the second cover comprises a flat panel having an opening.

18. an emergency exit door (102) for an interior cabin (104, 230) of an aircraft (106, 210), the emergency exit door (108) comprising a lever (108) configured to be engaged to open the emergency exit door (102); one or more covers removably secured to the emergency exit door (102), the one or more covers configured to be removed to access the lever (108); and A system (100) comprising one or more sensors (114) configured to detect the position of a first cover (110) and a second cover (112).

19. The one or more covers are: a first cover (110) removably secured to the emergency exit door (102), the first cover (110) being configured to be removed to access the lever (108); and a second cover (112) disposed between the lever (108) and the first cover (110), the second cover (112) being configured to be removed to provide access to the lever (108); The one or more sensors (114) one or more first sensors (114) configured to detect the first cover (110); and The system (100) of claim 18, comprising one or more second sensors (114) configured to detect the second cover (112).

20. a control unit (116) in communication with the one or more sensors (114), the control unit (116) configured to output one or more alert signals in response to removal of the first cover (110) and the second cover (112); and 20. The system (100) of claim 18, further comprising an alert device (118) configured to output one or more alerts in response to removal of the first cover (110) and the second cover (112), the alert device (118) including one or both of a speaker (120) or a light (122).

Images