Aircraft cockpit eye position positioning device and operation method thereof

Abstract

The present invention provides an eye position positioning device for an aircraft cockpit and an operating method thereof. The eye position positioning device for an aircraft cockpit of the present invention comprises a light blocking sheet, a light blocking plate, a positioning sheet, a light shielding box, a light source reference sheet, a white light-transmitting sheet and a light source control box. The present invention not only utilizes the principle that a certain point in space can be confirmed by the intersection of three planes, adopts a positioning method of determining an eye position by three planes, relies on human vision for positioning without contact with people, thereby achieving the purpose of more accurately positioning the eye position, but also adopts a background light source reference with high brightness contrast and darkroom technology, thereby greatly improving the practicality of the present invention. Therefore, the present invention can not only greatly improve the intuitiveness of the eye position meter and the design eye position positioning accuracy, and improve the accuracy of the pilot's operation, but also can simultaneously enable the evaluator's eye position to be adjusted to a more unified reference during the cockpit evaluation process, thereby greatly improving the effectiveness of the evaluation results.

Description

Technical Field

[0001] The invention relates to the field of aircraft cockpit design, and in particular to an aircraft cockpit eye position positioning device and an operation method thereof, wherein the device is used to help a pilot accurately sit at a cockpit designed eye position to achieve the purpose of positioning the pilot's eye position. Background Art

[0002] In the Civil Aviation Airworthiness Regulations of China CCAR-25-R4, clause "25.773(d)" requires that a mark or other guide must be fixed at each pilot's position to enable the pilot to position the seat to obtain the best combination of external vision and instrument scanning.

[0003] In order to meet the requirements of this clause, it is generally necessary to define the cockpit design eye point (DEP) during the aircraft design process as an input for analyzing cockpit vision compliance. When installing seats, the cockpit design eye point should also be considered to ensure that the seat can be adjusted for pilots of different limb sizes so that the pilot's actual eye position matches the design eye position.

[0004] As the name implies, the cockpit design eye position refers to a reference point based on the pilot's eye position when in a relaxed posture (cruise state), which is used to determine the internal and external cockpit vision, cockpit geometry and overall layout. Since the aircraft's cockpit design eye position determines the minimum cockpit space size and cabin layout, it is the most intuitive and important reference point for cockpit layout design, and is also an important indicator for pilots to ensure accurate and safe flight vision.

[0005] The equipment in the cockpit is arranged based on eye position. Seat position adjustment is an important step in the pilot's standard operating procedure (FCOM) before pushing the aircraft or starting. The purpose of seat position adjustment is to make the pilot's eyes be located at the designed eye position in the cockpit to achieve the best aircraft control position.

[0006] At present, most of the civil aircraft in service use three-ball locators. The basic principle of this three-ball locator is that two spheres shield each other. However, in practical applications, the three-ball locator has the following prominent technical problems:

[0007] a) The traditional three-ball eye positioner can locate the human eye on a specific straight line in space, and assumes that the left and right position of the pilot is consistent with the eye position. It locates the eye position by moving forward and backward, that is, it uses the principle that two straight lines intersect at one point. When the pilot deviates from the eye position in the left and right directions, the eye position positioning will produce a large error;

[0008] b) When pilots use a three-ball locator to align their eyes, the intuitiveness is poor, and when there is no auxiliary light source to provide illumination, the shadow of the ball will affect the pilot's judgment, so the adjustment error is often large. In some cases, the maximum error can even reach more than 30mm;

[0009] c) The installation of the three-ball locator requires slotting in the central column of the cockpit windshield, which destroys the integrity and aesthetics of the area and is not conducive to the realization of the cockpit interior design effect. At the same time, since the slot design of the central column requires the central column of the windshield to provide a certain depth, a large gap is caused between the interior covering the central column and the structure of the central column, making the central column appear very thick as a whole;

[0010] d) The three-ball locator is used to evaluate the design eye position of personnel during the cockpit ergonomics evaluation process, thereby ensuring a unified cockpit evaluation benchmark. However, due to the errors generated by the three-ball locator during use, it is difficult to ensure the uniformity of the evaluation benchmark, which greatly reduces the effectiveness of the evaluation results.

[0011] In summary, due to the adverse effects of the three-ball locator on pilot control, the destructive effects on cockpit interior design, and the significant impact on the effectiveness of cockpit ergonomics evaluation, devices that can more accurately adjust eye position have emerged in the prior art.

[0012] For example, the existing document CN206012987U, whose invention name is "Mechanism for determining a specific point in three-dimensional space". This existing document proposes a mechanism for locating a specific point in three-dimensional space. The document mainly describes a retractable eye positioning mechanism, which mainly includes a fixing part, a storage part, a main body part, and a rotating elastic member. When performing eye positioning, the user takes out the main body of the mechanism from the storage part by rotating the elastic member. The main body of the mechanism is a connecting rod mechanism, and the free end of the specific point determination rod of the main body of the mechanism after unfolding is located at a specific point. It can be seen that the mechanism proposed in this existing document is positioned by a physical structure, which may cause a collision between a person and the mechanism, thereby adversely affecting the positioning accuracy.

[0013] In addition, the existing document CN111301689A, whose invention name is "System and method for intelligently adjusting the pilot's eye position". This existing document proposes a method for adjusting the eye position, which uses an eye position positioning device to perform three-dimensional positioning of the pilot's eyes, and sends the positioning information to a seat adjustment device, which adjusts the seat to move the pilot's eyes to the eye position. It can be seen that the eye position positioning device of the existing document uses a device to detect the position of the eyes, and feeds back the position of the eyes to the seat adjustment device until the seat moves to make the pilot's eyes at a specific point.

[0014] In addition, the existing document TW M544909U, whose invention name is "Eye Positioning Device", proposes an eye positioning device, which includes: a horizontal reference plate and two frame positioning units combined with the horizontal reference plate; the two frame positioning units are used to position a pair of glasses, and through the eye positioning device, the center reference, left and right references, and horizontal reference of the glasses worn by the wearer can be confirmed.

[0015] For another example, the existing document CN305153825S, whose invention name is "Aircraft cockpit window frame decorative cover", is related to a patent for the appearance design of an aircraft cockpit window frame. The window frame is installed in the cockpit to provide decoration for the windshield structure and provide an installation position for the eye positioner.

[0016] However, none of the above existing documents can effectively solve the following technical problems that currently exist, as follows:

[0017] First of all, during the flight, an eye positioner is usually used to help pilots find the designed eye position. The traditional eye positioner is equipped with three eye position balls, all installed in front of the cockpit. The main principle of the eye positioner is: the human eye and the two eye position balls in the eye positioner are in a straight line, that is, when the human eye looks at the two eye position balls in the eye positioner and they coincide, it means that the eye is in the designed eye position. The three-ball eye positioner can locate the human eye on a specific straight line in space, so that the pilot's left and right position is assumed to be consistent with the eye position, and the eye position is located by moving forward and backward. However, when the pilot's eye position deviates from the left and right direction due to an improper sitting posture, the positioning of the pilot's eye position is inaccurate at this time, so the eye positioner has a large error during use.

[0018] Secondly, the eye position ball on the front side of the eye position meter is white, and the eye position ball on the back side is red. The human eye determines the eye position by judging whether the white ball completely blocks the red ball. In the absence of a background light in the eye position meter, the pilot can only rely on external natural light to observe the eye position meter. The groove design of the eye position meter means that when natural light shines on the three balls, the red ball closer to the inner side of the groove will produce a dark side, which is not easily distinguished from the background color of the groove interior, thus causing errors in the pilot's judgment.

[0019] Furthermore, the installation of the three-ball locator requires slotting of the central column of the cockpit windshield, which destroys the integrity and aesthetics of the area and is not conducive to the realization of the cockpit interior design effect. At the same time, since the slot design of the central column requires the central column of the windshield to provide a certain depth, a large gap is created between the interior covering the central column and the structure of the central column, making the central column appear thick as a whole.

[0020] In view of the above, it can be known that there is no such aircraft cockpit eye position positioning device in the technical field, which can determine an eye position by three planes, rely on human vision for positioning, and will not contact with people, so as to achieve the purpose of more accurate eye position positioning. Therefore, how to design an aircraft cockpit eye position positioning device that can meet the above requirements has become a technical problem that needs to be solved urgently. Summary of the invention

[0021] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide an aircraft cockpit eye position positioning device and an operating method thereof, which can effectively solve the technical problems in the prior art such as large errors in the use of eye position meters and judgment errors of pilots, and utilizes the principle that the intersection of three planes can confirm a certain point in space, adopts a positioning method of determining an eye position point using three planes, relies on human eye vision for positioning, and does not come into contact with humans, thereby achieving the purpose of more accurately locating the eye position.

[0022] In order to achieve the above-mentioned object of the invention, according to one aspect of the present invention, a device for locating eye position in an aircraft cockpit is provided, comprising:

[0023] A positioning piece, the positioning piece is located at the front side of the eye position positioning device in the cockpit of the aircraft, a triangular hollow positioning pattern is centrally arranged on the positioning piece, and the triangular hollow positioning pattern is composed of a horizontal positioning edge, a right positioning edge and a left positioning edge;

[0024] A light source reference, the light source reference is located at the rear side of the aircraft cockpit eye position positioning device, and the light source reference includes:

[0025] A light source reference sheet, wherein two triangular hollow reference patterns of the same shape are arranged on the left and right sides of the light source reference sheet, and the triangular hollow reference pattern is composed of a horizontal reference edge, a right reference edge and a left reference edge,

[0026] a white light-transmitting sheet having a convex pattern formed thereon, the convex pattern being consistent with the triangular hollow reference pattern on the light source reference sheet;

[0027] A light source control box and a light source control line, wherein the light source control box and the light source control line are arranged on the back of the light source reference sheet, and a light emitting device is installed on the light source control box;

[0028] A light shielding box, the light shielding box having a front opening and a rear opening, and being located between the positioning plate and the light source reference, and used for completely enclosing the space between the positioning plate and the light source reference to form a darkroom;

[0029] A light shielding plate is hinged to the front opening of the light shielding box, a door-shaped portion is provided on the light shielding plate to form a light shielding sheet, and the light shielding sheet can be opened independently of the light shielding plate.

[0030] Preferably, in the aircraft cockpit eye positioning device of the present invention, when the light shield is closed, the aircraft cockpit eye positioning device is in a normal working state, and when the light shield is opened, the aircraft cockpit eye positioning device is in an abnormal working backup state.

[0031] Preferably, in the aircraft cockpit eye positioning device of the present invention, one end of the right positioning edge and one end of the left positioning edge intersect to form an angle, and the horizontal positioning edge is located below the right positioning edge and the left positioning edge, and does not intersect with either of them.

[0032] Preferably, in the aircraft cockpit eye positioning device of the present invention, one end of the right reference edge and one end of the left reference edge intersect to form an angle, and the horizontal reference edge is located below the right reference edge and the left reference edge, and does not intersect with either of them.

[0033] Preferably, in the aircraft cockpit eye positioning device of the present invention, the positioning sheet and the light source reference sheet are dark in color, forming a color contrast with the white light-transmitting sheet.

[0034] Preferably, in the aircraft cockpit eye position positioning device of the present invention, the outer contour of the front opening of the light shielding box is consistent with the outer contour of the light shielding plate.

[0035] Preferably, in the aircraft cockpit eye position positioning device of the present invention, the outer contour of the rear opening of the light shielding box is consistent with the outer contour of the light source reference sheet.

[0036] Preferably, in the aircraft cockpit eye position positioning device of the present invention, the light source control box and the light source control line are centrally arranged on the back side of the light source reference sheet.

[0037] According to another aspect of the present invention, there is provided a method for operating an aircraft cockpit eye position positioning device, comprising the following steps:

[0038] Step 1: seeing the horizontal reference edge on the light source reference sheet through the horizontal positioning edge on the positioning sheet, thereby determining that the eye position is located on a horizontal plane in the space;

[0039] Step 2: seeing the right reference edge on the light source reference sheet through the right positioning edge on the positioning sheet, thereby determining that the eye position is located on a straight line where two planes intersect in space;

[0040] Step three: see the left reference edge on the light source reference sheet through the left positioning edge on the positioning sheet, thereby determining that the eye position is located at the point where three planes intersect in the space, thereby locating a specific point in the space.

[0041] Preferably, in the operating method of the aircraft cockpit eye position locating device of the present invention, when the aircraft cockpit eye position locating device is in an abnormal working state:

[0042] Step 1: The pilot first opens the light shielding sheet and finds the light source reference through the positioning sheet;

[0043] Step 2: The pilot observes the triangular hollow positioning pattern on the positioning piece. When the three sides of the triangular hollow positioning pattern on the positioning piece become bright, the correct eye position is obtained.

[0044] Preferably, in the operating method of the aircraft cockpit eye position locating device of the present invention, when the aircraft cockpit eye position locating device is in an abnormal working state:

[0045] Step 1: The pilot first opens the light blocking sheet and the light blocking plate, and uses the reflection of natural light to locate the eye position;

[0046] Step 2: The pilot locates the eye position by judging whether the triangular hollow positioning pattern on the positioning sheet has completely turned white.

[0047] In view of the above, the core technology of the present invention is different from the traditional three-ball locator:

[0048] 1. The present invention adopts a positioning method of determining an eye position using three planes to achieve more accurate positioning;

[0049] 2. The present invention adopts an electrically powered light source as a reference, which significantly improves the intuitiveness and accuracy of eye positioning;

[0050] 3. The present invention provides a mechanical backup method, thereby effectively improving the reliability of the eye position positioning device;

[0051] 4. The present invention also adopts a background light source reference with high brightness contrast and darkroom technology, thereby greatly improving the practicality of the present invention;

[0052] 5. The present invention innovatively adopts the design of a light shielding sheet, which not only improves the light environment in the cockpit, but also avoids the generation of glare.

[0053] Due to the above technical solutions, compared with the prior art, the present invention uses three planes to determine the positioning form of a point, thereby improving the positioning accuracy of the designed eye position; using the electric light source reference as the eye position positioning reference, the intuitiveness of the use of the eye position meter and the accuracy of the pilot's operation are improved; by providing a mechanical backup method for the eye position positioning device, the reliability of the device is improved; by the design of the light shielding box, the contrast between the reference light source and the darkroom environment is improved, and the usability of the eye position positioning device is improved; by the design of the light shielding sheet, the cockpit light environment is improved to avoid the generation of glare. The present invention can not only greatly improve the intuitiveness of the eye position meter and the positioning accuracy of the designed eye position, and improve the accuracy of the pilot's operation, but also enable the evaluator's eye position to be adjusted to a more unified reference during the cockpit evaluation process, thereby greatly improving the effectiveness of the evaluation results. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solution provided by the present invention, the following will briefly introduce the accompanying drawings. Obviously, the accompanying drawings described below are only a preferred embodiment of the present invention.

[0055] - Figure 1 The schematic diagram schematically shows the principle of the present invention of three planes intersecting to identify a point in space;

[0056] - Figure 2a The following is a schematic diagram showing a backup use state of a specific example of the aircraft cockpit eye position positioning device of the present invention;

[0057] - Figure 2b A schematic diagram schematically shows a use state of a specific example of the aircraft cockpit eye position positioning device of the present invention;

[0058] - Figure 2c A schematic diagram of a stowed state of a specific example of the aircraft cockpit eye position positioning device of the present invention is schematically shown;

[0059] - Figure 3 The structure diagram of the positioning piece and the light source reference piece in the eye position positioning device of the aircraft cockpit of the present invention is schematically shown;

[0060] - Figure 4 The schematic diagram of the structure of the light source reference of the electric light in the eye position positioning device of the cockpit of the aircraft of the present invention is schematically shown;

[0061] - Figure 5 The structure diagram of the light shielding box and the light source reference in the eye position positioning device for the cockpit of an aircraft of the present invention is schematically shown;

[0062] - Figure 6 The structure of the eye position positioning device for the aircraft cockpit of the present invention is schematically shown.

[0063] - Figure 7 The assembly exploded view of the aircraft cockpit eye position positioning device of the present invention is schematically shown.

[0064] List of reference numerals in the figures in the technical solutions and embodiments:

[0065] 1 Light shield

[0066] 2 Light barrier

[0067] 3 Positioning piece

[0068] 30 Triangle hollow positioning pattern

[0069] 301 Horizontal positioning edge

[0070] 302 Right positioning edge

[0071] 303 Left positioning edge

[0072] 4 Shading Box

[0073] 5 Light source reference film

[0074] 501 horizontal reference edge

[0075] 502 Right reference edge

[0076] 503 Left reference edge

[0077] 6 White transparent film

[0078] 7 Light source control box

[0079] 8 Light source control line DETAILED DESCRIPTION

[0080] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution in the embodiment of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiment of the present invention.

[0081] In this regard, it should be pointed out that in the specific description of these embodiments, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present invention, some changes in design, manufacturing or production based on the technical content disclosed in this disclosure are just conventional technical means, and should not be understood as insufficient content of this disclosure.

[0082] In addition, it should be noted that, unless otherwise defined, the technical terms or scientific terms used in the claims and the specification should have the usual meanings understood by persons with ordinary skills in the technical field to which the invention belongs. "One" or "an" and other similar words do not indicate a quantitative limitation, but rather indicate the presence of at least one. "Include" or "comprises" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalent elements, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0083] The present invention will be described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be easily understood by those skilled in the art, thereby making a clearer definition of the scope of the present invention.

[0084] First, if Figure 1 As shown, Figure 1 The schematic diagram of the principle of the invention of three planes intersecting to confirm a point in space is schematically shown. The invention uses the principle that three planes intersecting can confirm a point in space to design a device that can locate the eye position more accurately. The eye position locating device of the invention can be used to adjust the eye position of the pilot, mainly using the principle that three planes intersecting can determine a specific point in space.

[0085] Then, if Figure 7 As shown, Figure 7 The assembly exploded view of the eye position positioning device for the cockpit of an aircraft of the present invention is schematically shown. In general, the eye position positioning device for the cockpit of an aircraft of the present invention comprises a light blocking sheet 1, a light blocking plate 2, a positioning sheet 3, a light shielding box 4, a light source reference sheet 5, a white light-transmitting sheet 6 and a light source control box 7.

[0086] The positioning sheet 3 is located at the front side or front of the eye position positioning device in the cockpit of the aircraft, the light source reference sheet 5 is located at the rear side or back of the eye position positioning device in the cockpit of the aircraft, the light shielding box 4 is located between the positioning sheet 3 and the light source reference sheet 5, and the positioning sheet 3, the light shielding box 4 and the light source reference sheet 5 are fixed together by positioning screws. The outer contour of the rear opening of the light shielding box 4 is consistent with the outer contour of the light source reference sheet 5.

[0087] Figure 2a The following schematically shows a backup use state diagram of a specific example of the aircraft cockpit eye position positioning device of the present invention. Figure 2a As shown, a triangular hollow positioning pattern 30 is centrally arranged on the positioning sheet 3. The horizontal positioning edge 301, the right positioning edge 302 and the left positioning edge 303 constitute the three sides of the triangular hollow positioning pattern 30, wherein one end of the right positioning edge 302 and one end of the left positioning edge 303 intersect to form an angle, and the horizontal positioning edge 301 is located below the right positioning edge 302 and the left positioning edge 303, and does not intersect with either of them.

[0088] Likewise, if Figure 3 As shown, Figure 3 The structural diagram of the positioning plate and the light source reference plate in the eye position positioning device of the aircraft cockpit of the present invention is schematically shown. Two triangular hollow reference patterns of the same shape are also provided on the left and right sides of the light source reference plate 5. The horizontal reference edge 501, the right reference edge 502 and the left reference edge 503 constitute the three sides of each triangular hollow reference pattern, wherein one end of the right reference edge 502 and one end of the left reference edge 503 intersect to form an angle, and the horizontal reference edge 501 is located below the right reference edge 502 and the left reference edge 503, and does not intersect with either of them.

[0089] In addition, if Figure 3 and 4 As shown, Figure 4The schematic diagram of the structure of the electric light source reference in the eye position positioning device of the cockpit of the aircraft of the present invention is schematically shown. The light source reference is provided by the light source reference sheet 5, the white light-transmitting sheet 6, the light source control box 7, and the light source control line 8. Preferably, the light source control box 7 and the light source control line 8 are centrally arranged on the back of the light source reference sheet 5. The light source control box 7 and the light source control line 8 provide a background light source, and the light source provided by the light source control box 7 passes through the white light-transmitting sheet 6, and the horizontal reference edge 501, the left reference edge 503, and the right reference edge 502 of the triangular hollow reference pattern on the light source reference sheet 5 to obtain a luminous triangular reference as the light source reference for the eye position correction of the left pilot, and the same applies to the right pilot. Among them, the left triangular hollow reference pattern of the light source reference sheet 5 is used as the reference for the eye position correction of the right pilot, and the right triangular hollow reference pattern is used as the reference for the eye position correction of the left pilot.

[0090] In addition, a convex pattern is formed on the white light-transmitting sheet 6, and the convex pattern matches the triangular hollow reference pattern on the light source reference sheet 5. The positioning sheet 3 and the light source reference sheet 5 are dark in color, forming a color contrast with the white light-transmitting sheet 6, so that when the eye position positioning device of the present invention is in a standby state, the pilot can position the eye by judging whether the triangular hollow positioning pattern on the positioning sheet has completely turned white.

[0091] In addition, as Figure 5 As shown, two light emitting devices are installed on the light source control box 7, and the light source passes through the white light-transmitting sheet 6 and the triangular hollow reference pattern on the light source reference sheet 5, so as to serve as a reference for the pilot's eye position positioning. Therefore, the traditional positioning instrument uses an auxiliary light source or external natural light to find the positioning reference, that is, the positioning reference itself does not emit light. However, since the present invention is provided with a light emitting device and uses an electrically illuminated light source reference, not only the visual reference for the pilot's eye position positioning is clearer, but also the basis for the pilot to judge whether the positioning is in place is clearer.

[0092] like Figure 2a -2c, where Figure 2a , 2b 2c and 2c respectively schematically show the backup use state, use state and folded state schematic diagrams of a specific example of the eye positioning device for an aircraft cockpit of the present invention. As shown in the figure, the light shielding box 4 is cylindrical, having a front opening and a rear opening. Among them, the front opening of the light shielding box 4 is hinged with a light shielding plate 2, and a door-shaped part is provided on the light shielding plate 2 to form a light shielding sheet 1. The outer contour of the front opening of the light shielding box 4 is consistent with the outer contour of the light shielding plate 2. The light shielding plate 2 can be opened independently of the light shielding plate. When the light shielding plate 2 is closed, the eye positioning device of the present invention is in a normal working use state, such as Figure 2bWhen the light shield 2 is opened, the eye positioning device of the present invention is in a backup state of abnormal operation, such as Figure 2a shown.

[0093] Specifically, when the eye positioning device of the present invention is in a normal working state (such as Figure 2b When the pilot uses the eye positioning device, he only needs to open the light shielding sheet 1. When the pilot sees the rear triangular light source reference from the edge of the triangular hollow positioning pattern of the positioning sheet 3, that is, when the three hollow edges of the triangular hollow positioning pattern on the positioning sheet 3 are filled with light sources, the pilot has adjusted the correct eye position. When the pilot no longer needs to use the eye positioning device, the pilot only needs to cover the light shielding sheet 1, and the eye positioning device of the present invention is in the retracted state (as shown in FIG. Figure 2c When the pilot has completed the eye positioning, the pilot can cover the light shielding sheet, thereby effectively preventing the light source in the eye positioning device from affecting the pilot's flight, thereby strictly following the "quiet and dark" design concept of the cockpit.

[0094] When the eye position positioning device of the present invention fails (e.g., loses power, etc.) or the aircraft is not powered on, the pilot can Figure 2a The backup method shown is used to locate the eye position, that is, the pilot can open the light shielding sheet 1 and the light shielding plate 2, and use the reflection of natural light to effectively locate the eye position. In this way, even if the light source fails, the pilot can manually open the darkroom of the eye positioning device and complete the alignment through the external light source, thereby greatly improving the reliability of the device.

[0095] In addition, if Figure 5 As shown, Figure 5 The structural diagram of the shading box and the light source reference in the eye position positioning device of the cockpit of the aircraft of the present invention is schematically shown. The present invention uses the shading box 4 and the light shielding plate 2 to surround the gap between the positioning plate 3 and the light source reference plate 5, thereby surrounding the gap between the positioning plate 3 and the light source reference plate 5 to form a dark room, whereby the reference light source forms a strong contrast with the dark room environment, thereby improving the contrast of the light source reference, and facilitating the pilot to more intuitively confirm that the designed eye position has been reached. When using the eye position positioning device, the pilot looks for the light source reference on the rear side of the eye position positioning device through the triangular hollow positioning pattern on the front side of the positioning device.

[0096] Next, combine Figure 6 The working principle and operation method of the aircraft cockpit eye position positioning device of the present invention are described below. Figure 6 The structural exploded view of the aircraft cockpit eye position positioning device of the present invention is schematically shown:

[0097] The eye position positioning device of the aircraft cockpit of the present invention is dedicated to adjusting the eye position of the pilot, and mainly uses the principle that the intersection of three surfaces can determine a specific point in space to achieve more accurate positioning. Specifically, the eye position positioning device of the present invention mainly Figure 3 The positioning piece 3 and the light source reference piece 5 in the image are used to locate the eye position. Taking the eye position of the left pilot as an example, the right triangle reference on the light source reference piece is used for positioning. First, the horizontal positioning edge on the positioning piece is used to see the horizontal reference edge on the light source reference piece to determine that the eye position is on a horizontal plane in the space; then, the right reference edge on the light source reference piece is used to see the right positioning edge on the positioning piece to determine that the eye position is on a straight line where two planes in the space intersect; finally, the left reference edge on the light source reference piece is used to see the left positioning edge on the positioning piece to determine that the eye position is at the point where three planes in the space intersect, thereby locating a specific point in the space.

[0098] When the eye position positioning device of the present invention is in normal working state:

[0099] Step 1: The pilot first opens the light shielding sheet 1 and finds the light source reference through the positioning sheet 3;

[0100] Step 2: The pilot observes the triangular hollow positioning pattern on the positioning piece 3. When the three sides of the triangular hollow positioning pattern on the positioning piece 3 are all brightened, the correct eye position is obtained. In actual operation, the pilot first adjusts the seat height and sees the horizontal positioning edge 301 on the positioning piece 3 become brighter, then adjusts the seat forward and backward and left and right positions and sees the left positioning edge 303 and the right positioning edge 302 on the positioning piece 3 become brighter, which means the eye position adjustment is completed.

[0101] When the eye position positioning device of the present invention is in an abnormal working state (e.g., power failure) or the aircraft is not powered on:

[0102] Step 1: The pilot first opens the light shield 1 and the light shield 2 and uses the reflection of natural light to locate the eye position;

[0103] Step 2: The pilot locates the eye position by judging whether the triangular hollow positioning pattern on the positioning sheet 3 has completely turned white.

[0104] In summary, compared with the prior art, the present invention not only utilizes the principle that the intersection of three planes can confirm a certain point in space, adopts a positioning method of determining an eye position by three planes, relies on human vision for positioning, and does not come into contact with people, thereby achieving the purpose of more accurately positioning the eye position, but also adopts a background light source reference and darkroom technology with high brightness contrast, thereby greatly improving the practicality of the present invention. Therefore, the present invention can not only greatly improve the intuitiveness of the eye position positioning device and the design eye position positioning accuracy, and improve the accuracy of the pilot's operation, but also can simultaneously enable the evaluator's eye position to be adjusted to a more unified reference during the cockpit evaluation process, thereby greatly improving the effectiveness of the evaluation results. Particularly advantageously, the eye position positioning device of the present invention has a shielding sheet structure, which can prevent the light source of the eye position positioning device from attracting unnecessary attention from the pilot during the endurance process. Moreover, the darkroom of the eye position positioning device of the present invention can be opened, and it can be manually opened when the light source fails, and the alignment is completed by an external light source, thereby effectively improving the reliability of the device. Furthermore, the horizontal reference line of the eye position positioning device of the present invention is relatively long, which is very conducive to enabling the pilot to complete the horizontal position alignment more conveniently and quickly.

[0105] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art will easily think of other advantages and modifications. Therefore, in its broader aspects, the present invention is not limited to the specific details and representative embodiments shown and described herein. Therefore, those skilled in the art can reasonably combine or modify the elements of the above embodiments so as to make various modifications without departing from the spirit or scope of the general inventive concept of the present invention as defined by the attached claims and their equivalents.

Claims

1. An aircraft cockpit eye position positioning device, comprising: A positioning piece, the positioning piece is located at the front side of the eye position positioning device in the cockpit of the aircraft, a triangular hollow positioning pattern is centrally arranged on the positioning piece, and the triangular hollow positioning pattern is composed of a horizontal positioning edge, a right positioning edge and a left positioning edge; A light source reference, the light source reference is located at the rear side of the aircraft cockpit eye position positioning device, and the light source reference includes: A light source reference sheet, wherein two triangular hollow reference patterns of the same shape are arranged on the left and right sides of the light source reference sheet, and the triangular hollow reference pattern is composed of a horizontal reference edge, a right reference edge and a left reference edge, a white light-transmitting sheet having a convex pattern formed thereon, the convex pattern being consistent with the triangular hollow reference pattern on the light source reference sheet; A light source control box and a light source control line, wherein the light source control box and the light source control line are arranged on the back of the light source reference sheet, and a light emitting device is installed on the light source control box; A light shielding box, the light shielding box having a front opening and a rear opening, and being located between the positioning plate and the light source reference, and used for completely enclosing the space between the positioning plate and the light source reference to form a darkroom; A light shielding plate is hinged to the front opening of the light shielding box, a door-shaped portion is provided on the light shielding plate to form a light shielding sheet, and the light shielding sheet can be opened independently of the light shielding plate.

2. The aircraft cockpit eye position positioning device according to claim 1, characterized in that: When the light shield is closed, the aircraft cockpit eye position positioning device is in a normal working state, and when the light shield is opened, the aircraft cockpit eye position positioning device is in an abnormal working backup state.

3. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: One end of the right positioning edge and one end of the left positioning edge intersect to form an angle, and the horizontal positioning edge is located below the right positioning edge and the left positioning edge and does not intersect with either of them.

4. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: One end of the right reference side and one end of the left reference side intersect to form an angle, and the horizontal reference side is located below the right reference side and the left reference side and does not intersect with either of them.

5. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: The positioning sheet and the light source reference sheet are dark in color, forming a color contrast with the white light-transmitting sheet.

6. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: The outer contour of the front opening of the light shielding box is consistent with the outer contour of the light blocking plate.

7. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: The outer contour of the rear opening of the light shielding box is consistent with the outer contour of the light source reference plate.

8. The aircraft cockpit eye position positioning device according to claim 1 or 2, characterized in that: The light source control box and the light source control line are centrally arranged on the back side of the light source reference sheet.

9. A method for operating the aircraft cockpit eye position positioning device according to any one of claims 1 to 8, comprising the following steps: Step 1: seeing the horizontal reference edge on the light source reference sheet through the horizontal positioning edge on the positioning sheet, thereby determining that the eye position is located on a horizontal plane in the space; Step 2: seeing the right reference edge on the light source reference sheet through the right positioning edge on the positioning sheet, thereby determining that the eye position is located on a straight line where two planes intersect in space; Step three: see the left reference edge on the light source reference sheet through the left positioning edge on the positioning sheet, thereby determining that the eye position is located at the point where three planes intersect in the space, thereby locating a specific point in the space.

10. The operating method according to claim 9, characterized in that: When the aircraft cockpit eye position positioning device is in an abnormal working state: Step 1: The pilot first opens the light shielding sheet and finds the light source reference through the positioning sheet; Step 2: The pilot observes the triangular hollow positioning pattern on the positioning piece. When the three sides of the triangular hollow positioning pattern on the positioning piece become bright, the correct eye position is obtained.

11. The operating method according to claim 9, characterized in that: When the aircraft cockpit eye position positioning device is in an abnormal working state: Step 1: The pilot first opens the light blocking sheet and the light blocking plate, and uses the reflection of natural light to locate the eye position; Step 2: The pilot locates the eye position by judging whether the triangular hollow positioning pattern on the positioning sheet has completely turned white.

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