Aircraft cockpit smoke exhaust test device

Abstract

An aircraft cockpit smoke exhaust test device comprises a cockpit smoke generation module which comprises a smoke generation source and is used for releasing smoke generated by the smoke generation source into a tested aircraft cockpit; the image acquisition module comprises a thermosensitive sensing element, and the image acquisition module is configured to sense and acquire image information about postures and actions of testers in the aircraft cockpit through the thermosensitive sensing element; and the identification module is used for identifying action instructions contained in the posture actions of the testers in the aviation cockpit. According to the smoke exhaust test device for the aircraft cockpit, accurate identification of images in the smoke exhaust process can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of aircraft flight tests, in particular to an aircraft cabin smoke exhaust test device. Background Art

[0002] Airworthiness regulations have clear requirements for aircraft cabin smoke emissions, namely, "if there is a reasonable possibility of accumulation of dangerous quantities of smoke in the cockpit area, it must be possible to rapidly discharge the smoke starting from maximum pressurization."

[0003] In order to meet the airworthiness certification requirements, a test device that can accurately record test actions and smoke exhaust time is needed.

[0004] Generally, smoke is released into the aircraft cabin at the beginning of the test, and a timer is started. After the cabin smoke exhaust device is turned on, it is determined whether the test personnel in the cabin can give a schematic signal indicating that the smoke has been exhausted within a specified time (e.g., 3 minutes). Commonly, such a schematic signal can be some specific previously agreed body movements of the test personnel in the cabin, including but not limited to one or more agreed hand gestures, etc.

[0005] Several devices suitable for aircraft cabin smoke exhaust testing have been proposed in the prior art.

[0006] US Patent Application US5312072A proposes a smoke exhaust nozzle for aircraft, which has a minimum diameter at the outlet of the fuselage pressure compartment, which can minimize the damage to the structural integrity. The nozzle is a convergent-divergent nozzle, which can maintain sonic flow at very low altitudes, so that the maximum airflow can be obtained at all times. The throat is located at the position where the nozzle passes through the fuselage pressure shell, so that the penetration through the fuselage pressure shell is minimized. In essence, the document proposes a nozzle for aircraft smoke exhaust, and the key point lies in the design details and layout of the nozzle.

[0007] U.S. patent application US6164593A proposes an exhaust system for exhausting harmful smoke or other useless gases in an aircraft. The exhaust system includes an external air receiver installed outside the aircraft, a ventilation storage tank installed inside the aircraft, and an airflow duct connecting the receiver and the ventilation storage tank. When the aircraft is running, the airflow outside the aircraft enters the external air receiver and generates suction at the vent, thereby extracting smoke and other unnecessary gases inside the aircraft. The system also includes a valve for controlling the suction generated at the exhaust storage tank. In addition, the exhaust system can also be used for other mobile containers to extract smoke or other unnecessary gases in the containers. In short, the document proposes an aircraft smoke exhaust device, the key points of which are the working principle of the device and the details of the functional components (such as the pipe layout in the chamber, etc.).

[0008] Chinese patent application CN113815868A relates to a method and system for purifying an aircraft cabin and providing a safe reentry indication. A method and system for purifying an aircraft cabin and providing an indication to provide a confidence level that reentry into the cabin after operation is safe are described. These methods and systems are based on using external air and / or filtered air to reduce the concentration of infectious agents inside the cabin. The amount of time the system operates to introduce compounds into the cabin is specifically calculated to reduce the proportion of remaining infectious agents to below a certain desired level, thereby reducing the initial concentration of the contamination concentration in the cabin. The duration of purification depends on the cabin volume and the air flow rate introduced. For example, after 9 minutes of flowing introduced air at 20 air changes per hour, the remaining air ratio will be less than 5%. In short, the document proposes a method for purifying an aircraft cabin and providing a safe reentry indication, and the key point is a new type of air purification system and working mechanism, such as different working modes and indication methods when there is an infectious source and no infectious source in the cabin.

[0009] Chinese patent application CN113830310A relates to an air purification system, and in particular to a filter assembly, wherein the filter assembly comprises a plurality of filter modules, wherein each of the plurality of filter modules comprises a frame, a filter element connected within the frame, and at least one mating feature. At least one mating feature of each filter module is configured to selectively engage with at least one mating feature of another filter module, so that the plurality of filter modules are connected together in a series arrangement. In other words, the document proposes an air purification system, the key point of which is a novel air purification system, in particular a filter assembly, wherein the filter assembly is connected by a plurality of filter modules through a frame.

[0010] Chinese patent application CN114797447A relates to air purification devices, systems and methods. Air filtration devices, systems and methods for removing nitrogen oxides and volatile organic compounds (VOCs) and non-VOC particles can remove particles, nitrogen oxide-containing compounds and volatile organic compounds from a large volume closed environment. The system adds HEPA filtration upstream of the UV LED auxiliary light reaction chamber, and the light reaction chamber includes a plurality of baffles with air flow spaces separated along the pipeline, and the porous permeable nitrogen oxide adsorption filter is oriented downstream of the UV auxiliary light reaction chamber to further filter the airflow in the system to remove nitrogen oxide-containing compounds. In essence, the document proposes an air purification system, the key point of which is a new type of air purification system, especially a filter assembly, and especially proposes an air filtration device that can remove nitrogen oxides, volatile organic compounds VOCs and non-VOC particles, and proposes a light reaction chamber with multiple baffle filters added on the basis of conventional air filtration.

[0011] However, none of these prior art documents discusses a key issue, which is how to solve the problem that the camera recording in the aircraft cockpit during the smoke exhaust process is blurred and the relevant actions of the test personnel in the aircraft cockpit cannot be identified.

[0012] Therefore, it is necessary to develop an aircraft cockpit smoke exhaust test device that can improve or even solve the technical problem that the posture and movement of the test personnel in the cockpit cannot be captured when there is still smoke in the cockpit and the naked eye vision is unreliable. Utility Model Content

[0013] The technical problem to be solved by the utility model is to provide a test device for aircraft cabin smoke exhaust, which is used to support aircraft cabin smoke exhaust test flight. In view of the problem that the image recording is blurred during the above-mentioned smoke exhaust process and the pilot's actions cannot be identified, the device can first ensure the accurate recognition of the image during the smoke exhaust process. Furthermore, the device is also conducive to realizing the dual recognition of "sound + graphics", thereby improving the accuracy of the data of the cabin smoke exhaust test flight and the reliability of implementation.

[0014] To this end, the utility model provides an aircraft cabin smoke exhaust test device.

[0015] include:

[0016] A cabin smoke generating module, the cabin smoke generating module comprising a smoke generating source, for releasing smoke generated by the smoke generating source into a cabin of the aircraft under test;

[0017] An image acquisition module includes a thermal sensing element, and the image acquisition module is configured to sense and acquire image information about the body movements of the test personnel in the aircraft cabin through the thermal sensing element, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cabin.

[0018] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, it can also include an image processing module, which is configured to analyze the image information collected by the image acquisition module, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cabin.

[0019] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the present invention, the image information collected by the image acquisition module and analyzed by the image processing module in a preferred embodiment includes gestures of the test personnel in the aircraft cabin.

[0020] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, the image acquisition module includes a thermal camera, and the thermal camera is configured to acquire video image information about the body movements of the test personnel in the aircraft cabin.

[0021] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, the gesture action includes an OK-type gesture in which the thumb and index finger of the same hand are bent and connected with the fingertips and the remaining fingers are extended.

[0022] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, the image processing module stores preset image information reflecting preset body movements, and the image processing module is configured to compare the image information acquired by the image acquisition module with the preset image information to identify the action instructions contained in the body movements of the test personnel in the aircraft cabin.

[0023] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, it further comprises: a sound collection module, wherein the sound collection module is configured to collect sound information in the aircraft cabin under test.

[0024] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, the sound information includes the command sound of the test personnel in the aircraft cabin.

[0025] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, it further includes: a control module, the control module includes a synchronous clock, and the control module is configured to mark the time when the image acquisition module acquires the image information by means of the synchronous clock.

[0026] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, it also includes: a sound collection module, the sound collection module is configured to collect sound information in the tested aircraft cabin, and the control module is further configured to mark the time when the sound collection module collects the sound information by means of the synchronous clock.

[0027] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, the control module includes a human-machine interaction interface arranged outside the aircraft cabin under test, and the human-machine interaction interface includes:

[0028] an input component, the input component being connected to the cabin smoke generating module via an analog-to-digital conversion device to control the start and stop of smoke release in the aircraft cabin and / or the flow rate of smoke release in the aircraft cabin; and / or

[0029] An output component is connected to a flow sensor for collecting the flow of the cabin smoke generating module and / or an information receiver for the analysis result of the image processing module through a data acquisition module.

[0030] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, it also includes: a portable storage device, which is configured to store the image information collected by the image acquisition module and / or the analysis conclusion obtained by the image processing module.

[0031] In summary, the technical advantages of the present invention are at least:

[0032] 1) By arranging sensors such as thermal sensors that can capture the human skeleton shape and coordinated visual solution units, the technical problem of being unable to capture the pilot's posture and movements when there is still smoke in the cockpit and the naked eye vision is unreliable is solved.

[0033] 2) Furthermore, the present invention solves the technical problem that the test personnel cannot control the test progress outside the cockpit by providing a sound recording device and / or a flow control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] This document includes the accompanying drawings to provide a further understanding of the various embodiments, and the accompanying drawings are incorporated in and constitute a part of this specification.

[0035] The drawings illustrate the various embodiments described herein, and together with the description serve to explain the principles and operations of the claimed subject matter.

[0036] With reference to the above purposes, the technical features of the present invention are clearly described below, and its advantages are apparent from the following detailed description with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention by way of example without limiting the scope of the present invention.

[0037] In the attached figure:

[0038] Figure 1 It is a schematic principle block diagram of an aircraft cabin smoke exhaust test device according to a preferred embodiment of the utility model.

[0039] Reference numerals list

[0040] 10 Aircraft cabin smoke exhaust test device

[0041] 100 Cabin smoke generation module

[0042] 110 Smoke source

[0043] 120 Flow Control Valve

[0044] 130 Nozzle Assembly

[0045] 200 Image acquisition module

[0046] 300 Image Processing Module

[0047] 400 Test personnel in the aircraft cockpit

[0048] 500 Sound Collection Module

[0049] 600 Synchronous Clock

[0050] 700 Human-computer interaction interface

[0051] 710 Input Components

[0052] 720 Output Components

[0053] 800 Analog-to-digital converter

[0054] 900 Data Acquisition Module

[0055] 1000 Portable Storage Device DETAILED DESCRIPTION

[0056] Reference will now be made in detail to embodiments of the present invention, examples of which are shown in the accompanying drawings and described below.

[0057] Although the present invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those illustrated embodiments.

[0058] On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention.

[0059] In order to facilitate explanation and accurately define the technical solutions of the present invention, the terms “upper”, “lower”, “inner” and “outer” are used to describe features of the exemplary embodiments shown in the drawings with reference to their positions.

[0060] Various preferred but non-limiting embodiments of the envelope of the present invention are described in detail below with reference to the accompanying drawings.

[0061] Figure 1 Detailed description of the preferred embodiment of the aircraft cabin smoke exhaust test device according to the present invention is shown in FIG.

[0062] See also Figure 1 The aircraft cabin smoke exhaust test device 10 comprises: a cabin smoke generating module 100 and an image acquisition module 200. Preferably, the aircraft cabin smoke exhaust test device 10 may further comprise an image processing module 300.

[0063] The cabin smoke generating module 100 includes a smoke generating source 110 to release the smoke generated by the smoke generating source 110 into the cabin of the aircraft under test. In addition, the cabin smoke generating module 100 may also preferably include a flow control valve 120 and a nozzle assembly 130 extending into the cabin, which will be further described below. The flow control valve 120 may preferably be arranged between the smoke generating source 110 and the nozzle assembly 130 as shown in the figure.

[0064] According to the concept of the present invention, the image acquisition module 200 includes a thermal sensing element. The image acquisition module 200 is configured to sense and acquire image information about the body movements of the test personnel 400 in the aircraft cabin through the thermal sensing element. It should be pointed out here that the specific model and configuration and use of the thermal sensing element referred to in this article are well known to those skilled in the art and will not be described in detail here, as long as it can sense and image the object to be tested through electromagnetic waves outside the visible light band.

[0065] Preferably, the image acquisition module may include a thermal camera. The thermal sensing element may be the thermal camera itself or a main part of the thermal camera. In this preferred embodiment, the thermal camera may be configured to acquire video image information about the body movements of the test personnel in the aircraft cabin.

[0066] The image processing module 300 is configured to analyze the image information collected by the image collection module 200 , thereby identifying the motion instructions contained in the body movements of the test personnel 400 in the aircraft cockpit.

[0067] Preferably, the image information collected by the image acquisition module 200 and analyzed by the image processing module 300 includes the gestures of the test personnel in the aircraft cockpit. Preferably, the gestures may include an OK-type gesture in which the thumb and index finger of the same hand are bent and connected with the remaining fingers extended. However, it should be pointed out here that the image acquisition module 200 and the image processing module 300 may also alternatively or additionally collect and analyze the body movements of other parts of the test personnel 400 in the aircraft cockpit according to actual needs, including but not limited to the body movements of one or more parts of the head, arms, torso, legs, and feet.

[0068] According to a particularly advantageous inventive concept, the image processing module 300 may preferably store preset image information reflecting preset body movements, and the image processing module 300 is configured to compare the image information collected by the image acquisition module 200 with the preset image information to identify the action instructions contained in the body movements of the test personnel 400 in the aircraft cockpit. It is understandable that the preset image information may be one or more static image information, or one or more sets of dynamic image (e.g., animation) information.

[0069] It should be particularly pointed out here that, according to the concept of the present invention, the image acquisition module 200 and the image processing module 300 can continuously acquire and process images within a time interval (for example, within a certain period of time after the cabin smoke generating module 100 starts to operate), or can only acquire and process part of the images that meet the conditions according to actual needs.

[0070] According to a preferred embodiment of the aircraft cabin smoke exhaust test device 10 of the utility model, a sound collection module 500 may also be included. The sound collection module 500 may preferably be configured to collect sound information in the aircraft cabin under test. Further preferably, the sound information may preferably include at least the voice of the test personnel's command in the aircraft cabin. Those skilled in the art can configure the voice information of the relevant command according to actual needs and with reference to other conventional practices of the test device that does not use the utility model, and will not be described in detail here.

[0071] Similar to the above description on image processing, the sound collection module 500 can continuously collect and process the sound within a time interval (for example, within a certain period of time after the cabin smoke generating module 100 starts to operate), or it can only collect and process some qualified sounds according to actual needs.

[0072] According to a preferred embodiment of the aircraft cabin smoke exhaust test device 10 of the utility model, a control module, also called a management module, is further provided, which is used to record the test process and preferably can also be used to control the progress of the test. For the sake of simplicity, the control module is used herein to describe this component of the test device of the utility model.

[0073] The control module may include a synchronous clock 600. In this case, the control module may be configured to mark the time when the image acquisition module 200 acquires image information by means of the synchronous clock 600. The synchronous clock 600 may be, for example, various common types of clock generators, which will not be described in detail here. Those skilled in the art can purchase and configure the corresponding synchronous clock 600 on the market according to actual needs for the clock.

[0074] In the case where the sound collection module 500 is included, the control module may also be configured to mark the time when the sound collection module 500 collects sound information by means of the synchronous clock 600 .

[0075] In addition, the control module may also additionally or alternatively include a human-machine interaction interface 700 disposed outside the cockpit of the aircraft being tested. Figure 1, the human-machine interaction interface 700 may include, for example, an input component 710 and / or an output component 720. It should be noted here that, although the human-machine interaction interface 700 is preferably located outside the tested aircraft cockpit to better control the test externally, those skilled in the art may also set the human-machine interaction interface 700 inside the tested aircraft cockpit, such as around the control panel or in other relatively independent spaces in the aircraft cockpit, according to actual conditions, such as different identities of the commanders during the test, which will not be elaborated here.

[0076] The input component 710 may be preferably connected to the cabin smoke generating module 100 through the analog-to-digital conversion device 800, for example, to control the start and stop of smoke release in the aircraft cabin and / or the flow rate of smoke release in the aircraft cabin. In order to control the flow rate of the above-mentioned smoke release, as shown in the figure, the cabin smoke generating module 100 may include a flow control valve 120. The smoke generating source 110 and the flow control valve 120 may be connected to the above-mentioned analog-to-digital conversion device 800, respectively, to convert the input signal of the input component 710 into a signal recognizable by the smoke generating source 110 and the flow control valve 120, so as to control one or both of the smoke generating source 110 and the flow control valve 120, for example, to turn on or off the smoke generating source 110, and / or to adjust the opening size of the flow control valve 120, such as fully open, half open, etc.

[0077] The output component 720 may be preferably connected to a flow sensor for collecting the flow of the cabin smoke generating module 100 and / or an information receiver for analyzing the results of the image processing module 300 through the data acquisition module 900. The output component 720 may also generally include a display device for displaying contents including but not limited to smoke residual state monitoring, smoke exhaust flow state monitoring, smoke exhaust time digital display, etc.

[0078] According to a preferred embodiment of the aircraft cabin smoke exhaust test device of the utility model, a portable storage device 1000 may also be included. Figure 1 As shown in , the portable storage device 1000 may be configured to store the image information collected by the image acquisition module 200 and / or part or all of the analysis conclusions obtained by the image processing module 300. In addition, in the case where the sound acquisition module 500 is included, the portable storage device 1000 may also be alternatively or additionally configured to store part or all of the sound information collected by the sound acquisition module 500. The portable storage device 1000 may include, but is not limited to, a common portable storage tool such as a USB flash drive.

[0079] Preferred embodiments of the present invention have been described in detail above, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0080] These and other changes can be made to the embodiments described herein in light of the above detailed description.

[0081] In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

Claims

1. An aircraft cabin smoke exhaust test device, It is characterized in that include: A cabin smoke generating module, the cabin smoke generating module comprising a smoke generating source, for releasing smoke generated by the smoke generating source into a cabin of the aircraft under test; An image acquisition module includes a thermal sensing element, and the image acquisition module is configured to sense and acquire image information about the body movements of the test personnel in the aircraft cabin through the thermal sensing element, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cabin.

2. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that The image information collected by the image collection module includes the gestures of the test personnel in the aircraft cockpit.

3. The aircraft cabin smoke exhaust test device according to claim 2, It is characterized in that The gesture action includes an OK-type gesture in which the thumb and index finger of the same hand are bent and the fingertips are connected, and the remaining fingers are extended.

4. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that The image acquisition module includes a thermal camera, which is configured to acquire video image information about the body movements of a test person in an aircraft cabin.

5. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that Also includes: An image processing module, wherein the image processing module is configured to analyze the image information collected by the image acquisition module, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit, the image processing module stores preset image information reflecting the preset body movements, and the image processing module is configured to compare the image information collected by the image acquisition module with the preset image information to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit.

6. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that Also includes: A sound collection module is configured to collect the voice commands of the test personnel in the cockpit of the tested aircraft.

7. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that Also includes: A control module includes a synchronous clock, and the control module is configured to mark the time when the image acquisition module acquires the image information by means of the synchronous clock.

8. The aircraft cabin smoke exhaust test device according to claim 7, It is characterized in that Also includes: A sound collection module is configured to collect sound information in the cockpit of the tested aircraft, and the control module is further configured to mark the time when the sound collection module collects the sound information by means of the synchronous clock.

9. The aircraft cabin smoke exhaust test device according to claim 7, It is characterized in that The control module includes a human-machine interaction interface arranged outside the cockpit of the tested aircraft, and the human-machine interaction interface includes: an input component, the input component being connected to the cabin smoke generating module via an analog-to-digital conversion device to control the start and stop of smoke release in the aircraft cabin and / or the flow rate of smoke release in the aircraft cabin; and / or An output component is connected to an information receiver of a flow sensor that collects the flow of the cabin smoke generating module through a data acquisition module.

10. The aircraft cabin smoke exhaust test device according to claim 7, It is characterized in that Also includes: an image processing module, wherein the image processing module is configured to analyze the image information collected by the image acquisition module, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit, wherein the image processing module stores preset image information reflecting preset body movements, and the image processing module is configured to compare the image information collected by the image acquisition module with the preset image information to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit, The control module includes a human-machine interaction interface disposed outside the cockpit of the aircraft under test, and the human-machine interaction interface includes: an input component, the input component being connected to the cabin smoke generating module via an analog-to-digital conversion device to control the start and stop of smoke release in the aircraft cabin and / or the flow rate of smoke release in the aircraft cabin; and / or An output component is connected to a flow sensor for collecting the flow of the cabin smoke generating module and / or an information receiver for the analysis result of the image processing module through a data acquisition module.

11. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that Also includes: A portable storage device is configured to store the image information acquired by the image acquisition module.

12. The aircraft cabin smoke exhaust test device according to claim 1, It is characterized in that Also includes: an image processing module, the image processing module being configured to analyze the image information collected by the image acquisition module, so as to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit, the image processing module storing preset image information reflecting preset body movements, and the image processing module being configured to compare the image information collected by the image acquisition module with the preset image information to identify the action instructions contained in the body movements of the test personnel in the aircraft cockpit; and A portable storage device is configured to store the image information acquired by the image acquisition module and / or the analysis conclusion obtained by the image processing module.

Images