Head-up display parallax measuring equipment

Abstract

According to the head-up display parallax measuring equipment, a lifting rod capable of being vertically or transversely arranged is clamped and installed on a main support through a top block and a check block, and a telescope is arranged on the lifting rod and used for aiming and comparing the position of a cross aiming line on a head-up display. By means of the first adjusting bolt, the second adjusting bolt, the corresponding top block and the corresponding check block which are arranged on the cross rod and the vertical rod, accurate adjustment of the suspender in the vertical direction and the transverse direction is achieved, it is ensured that the telescope can be accurately aligned with different positions of the head-up display, and therefore the accuracy of parallax measurement is improved. The head-up display parallax measuring device can be directly installed on an airplane, parallax detection can be completed without disassembling the head-up display, the design greatly simplifies the detection process, improves the detection efficiency, is especially suitable for an external field operation environment, and reduces time and labor cost caused by disassembling and transporting of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of head-up display testing devices, specifically a head-up display parallax measurement device. Background Technology

[0002] A head-up display (HUD), or head-up display for short, is an optical sight that projects the main flight indicators and key flight parameters onto the HUD screen. This allows the pilot to simultaneously see the main flight instruments and important flight parameters while looking forward at the scene outside the aircraft. Over long-term use, the mounting positions of the optics in the HUD can change slightly, causing parallax. Parallax occurs when the crosshairs on the HUD's aiming surface appear inconsistent when viewed from different positions.

[0003] If parallax exists in the head-up display, it will affect aiming during flight and requires factory calibration. The current method for parallax detection of the head-up display is to disassemble it and transfer it to a test bench for testing with special equipment. The overall operation is relatively complicated and inefficient, and is not suitable for field operations. Summary of the Invention

[0004] The purpose of this invention is to provide a head-up display (HUD) parallax measurement device that can be installed on an aircraft to directly detect the parallax of the HUD without disassembling the HUD, thus solving the problems in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a head-up display parallax measuring device, including a main support, which consists of a horizontally arranged crossbar and a vertically arranged vertical bar. A first threaded sleeve block is installed on the crossbar, and a first adjusting bolt is installed inside the first threaded sleeve block. A first top block is installed at the end of the first adjusting bolt that protrudes from the first threaded sleeve block. A first stop block is also installed on the crossbar corresponding to the position of the first top block. A second threaded sleeve block is installed on the vertical bar, and a second adjusting bolt is installed inside the second threaded sleeve block. A second top block is installed at the end of the second adjusting bolt that protrudes from the second threaded sleeve block. A second stop block is also installed on the vertical bar corresponding to the position of the second top block. A clamping and positioning suspension rod is installed between the first top block and the first stop block or between the second top block and the second stop block. A telescope is installed at the end of the suspension rod. The telescope includes two sets of parallel lens tubes. The lenses of the lens tubes are provided with crosshairs. The suspension rod can be vertically adjusted between the first top block and the first stop block, and horizontally adjusted between the second top block and the second stop block. A first attitude rod is mounted on the end of the boom via a first pivot. A first baffle is provided on one side of the boom. A first fixing frame is mounted on the first attitude rod, and a first micrometer is mounted on the first fixing frame. The screw head of the first micrometer can contact the first baffle. A first tension spring is installed between the first fixing frame and the first baffle, and the first tension spring always tends to pull the first fixing frame to rotate closer to the first baffle. A second attitude rod is mounted on the end of the first attitude rod away from the boom via a second pivot. A second fixing frame is mounted on the second attitude rod, and a second micrometer is mounted on the second fixing frame. The screw head of the second micrometer can contact the first fixing frame. A torsion spring is mounted on the second pivot, and the torsion spring always tends to pull the first fixing frame closer to the first baffle. The first and second fixed frames tend to rotate closer together. The second attitude rod is connected to the telescope via a third pivot. A second baffle is installed at the end of the second attitude rod away from the first attitude rod. A third fixed frame is located at the bottom of the telescope, and a third micrometer is mounted on the third fixed frame. The screw head of the third micrometer can contact the second baffle. A second tension spring is also installed between the second baffle and the third fixed frame, and the second tension spring always tends to pull the third fixed frame to rotate closer to the second baffle. Rotating the first micrometer can adjust the yaw angle of the telescope relative to the head-up display (HUD), rotating the second micrometer can adjust the pitch angle of the telescope relative to the HUD, and rotating the third micrometer can adjust the roll angle of the telescope relative to the HUD. The telescope frame has a through-slot and a second through-slot. The second micrometer is located in the first through-slot, the second attitude rod is located in the second through-slot, the second fixed frame and the second baffle are located on the outer sides of the two ends of the second through-slot, and the third fixed frame is located at the bottom of the telescope frame on one side of the second through-slot. A hanger is mounted on the horizontal bar, and a limit block is mounted on the back of the vertical bar. The hanger can hang the main support onto the headlight display device to be tested. A detachable limit pin is mounted on the upper end of the suspension rod. When the suspension rod is no longer clamped between the first top block and the first stop block, the limit pin can overlap between the tops of the first top block and the first stop block.The boom has a first inclined surface on one side, a second inclined surface that matches the first inclined surface on the inner side of the first stop block, and a third inclined surface that matches the first inclined surface on the inner side of the second top block.

[0006] The advantages of this invention are as follows: The head-up display (HUD) parallax measurement device of this invention features a vertically or horizontally oriented boom mounted on a main support via top blocks and stops. A telescope on the boom is used for aiming and comparing the position of the crosshairs on the HUD. Precise adjustment of the boom's vertical and horizontal positions is achieved through first and second adjusting bolts on the horizontal and vertical booms, along with corresponding top and stops, ensuring accurate alignment of the telescope with different positions on the HUD, thereby improving the accuracy of parallax measurement. This HUD parallax measurement device can be directly installed on an aircraft without disassembling the HUD, enabling parallax detection. This design greatly simplifies the detection process, improves efficiency, and is particularly suitable for field operations, reducing time and labor costs associated with equipment disassembly and transportation. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2 This is the front view of this utility model;

[0009] Figure 3 yes Figure 2 Top view;

[0010] Figure 4 yes Figure 2 The left view;

[0011] Figure 5 yes Figure 2 The right view;

[0012] Figure 6 yes Figure 2 Rear view;

[0013] Figure 7 This is a schematic diagram of the structure of this utility model after removing the main support and the telescope;

[0014] Figure 8 yes Figure 2 Sectional view along line AA;

[0015] Figure 9 This is a schematic diagram showing the horizontal installation of the hanger. Detailed Implementation

[0016] The head-up display parallax measurement device described in this utility model, such as... Figure 1-7As shown, it includes a main support frame, which consists of horizontally arranged crossbars 1 and vertically arranged vertical bars 2, used to directly install the entire device onto the front of the head-up display on the aircraft.

[0017] A first threaded sleeve block 3 is installed on the crossbar 1. A first adjusting bolt 4 is installed inside the first threaded sleeve block 3. A first top block 5 is installed at the end of the first adjusting bolt 4 that protrudes from the first threaded sleeve block 3. A first stop block 6 is also installed on the crossbar 1 corresponding to the position of the first top block 5. Rotating the first adjusting bolt 4 can adjust the clamping distance between the first top block 5 and the first stop block 6.

[0018] A second threaded sleeve block 7 is installed on the vertical rod 2. A second adjusting bolt 8 is installed inside the second threaded sleeve block 7. A second top block 9 is installed at the end of the second adjusting bolt 8 that protrudes from the second threaded sleeve block 7. A second stop block 10 is also installed on the vertical rod 2 corresponding to the position of the second top block 9. Rotating the second adjusting bolt 8 can adjust the clamping distance between the second top block 9 and the second stop block 10.

[0019] A clamping rod 11 is installed between the first top block 5 and the first stop block 6 or between the second top block 9 and the second stop block 10. A telescope 36 is installed at the end of the rod 11. The telescope 36 includes two sets of parallel lens tubes. The lenses of the lens tubes are provided with crosshairs for alignment with the crosshairs on the head-up display to be tested.

[0020] The boom 11 can be vertically raised and lowered between the first top block 5 and the first stop block 6, and horizontally adjusted between the second top block 9 and the second stop block 10, respectively realizing the relative distance adjustment of the telescope 36 in the vertical and horizontal installation states. After the adjustment is completed, rotating the adjusting bolt can lock the boom 11 onto the stop block, thereby realizing the locking of the boom 11 and the telescope 36 in the vertical height position or the horizontal horizontal position.

[0021] When using the above-mentioned device to perform a parallax test on the head-up display (HUD), install the main support on the HUD mounting bracket, and vertically install the boom 11 and telescope 36 assembly between the first top block 5 and the first stop block 6. At this time, align the two observation tubes of the telescope 36 with the left and right edges of the HUD, respectively. Adjust the height of the telescope 36 so that the crosshair of one side of the tube is aligned with the crosshair of the HUD. Then observe the other side of the tube to see if the crosshair on the tube coincides with the crosshair of the HUD. If they coincide, it indicates that there is no parallax or the parallax is very small, and no calibration is required. If they do not coincide, and the deviation is found to exceed the specified error range through the scale of the crosshair, it proves that the parallax at the two horizontal observation points exceeds the standard, indicating that the HUD is faulty and needs to be disassembled and returned to the factory for calibration.

[0022] When it is necessary to perform parallax testing on the HUD in the vertical direction, simply install the hanger 11 between the second top block 9 and the second stop block 10. The remaining test operation method is the same as the test in the horizontal direction.

[0023] The aforementioned testing equipment occupies a relatively small space and can be directly installed inside the aircraft cockpit. By comparing the two parallel observation ports on the telescope 36, the left and right sides and top and bottom sides of the head-up display (HUD) can be observed, simplifying the observation points. Only the parallax between the furthest distances needs to be checked to see if it exceeds the usage standard. This can be used to check the maximum parallax, determining whether it exceeds the acceptable range. It is simple, efficient, and suitable for fieldwork. However, if the error exceeds the acceptable range, the HUD is considered faulty and needs to be returned to the factory for calibration.

[0024] Furthermore, in order to adaptively adjust the telescope 36 along the x, y, and z axes in a three-dimensional coordinate system according to different head-up displays (HUDs), and to ensure that the crosshairs on one of the telescope tubes are aligned with the crosshairs of the HUD, the following structure can also be installed between the boom 11 and the telescope 36:

[0025] The end of the boom 11 is equipped with a first attitude rod 13 via a first rotating shaft 12. A first baffle 14 is provided on one side of the boom 11. A first fixing frame 15 is installed on the first attitude rod 13. A first micrometer head 16 is provided on the first fixing frame 15. The screw head of the first micrometer head 16 can contact the first baffle 14. A first tension spring 17 is installed between the first fixing frame 15 and the first baffle 14. The first tension spring 17 always has the tendency to pull the first fixing frame 15 to rotate closer to the first baffle 14.

[0026] When the first micrometer head 16 is rotated so that its screw head extends, the distance between the first fixed frame 15 and the first baffle 14 can be increased. When the screw head retracts, the distance between the first fixed frame 15 and the first baffle 14 can be reduced under the action of the first tension spring 17, thereby adjusting the relative rotation angle between the boom 11 and the first attitude rod 13.

[0027] The end of the first attitude rod 13 away from the boom 11 is equipped with a second attitude rod 19 via a second rotating shaft 18. A second fixing frame 20 is installed on the second attitude rod 19. A second micrometer head 21 is provided on the second fixing frame 20. The screw head of the second micrometer head 21 can contact the first fixing frame 15. A torsion spring 22 is installed on the second rotating shaft 18. The torsion spring 22 always tends to make the first fixing frame 15 and the second fixing frame 20 rotate closer together.

[0028] When the second micrometer head 21 is rotated so that its screw head extends, the distance between the second fixed frame 20 and the first fixed frame 15 can be increased. When the screw head retracts, the distance between the second fixed frame 20 and the first fixed frame 15 can be reduced under the action of the torsion spring 22, thereby adjusting the relative rotation angle between the first attitude rod 13 and the second attitude rod 19.

[0029] The second attitude lever 19 is connected to the telescope 36 via the third pivot 23. A second baffle 24 is installed at the end of the second attitude lever 19 away from the first attitude lever 13. A third fixing frame 25 is provided at the bottom of the telescope 36. A third micrometer head 26 is provided on the third fixing frame 25. The screw head of the third micrometer head 26 can contact the second baffle 24. A second tension spring 27 is also installed between the second baffle 24 and the third fixing frame 25. The second tension spring 27 always has the tendency to pull the third fixing frame 25 to rotate closer to the second baffle 24.

[0030] When the third micrometer head 26 is rotated so that its screw head extends, the distance between the second baffle 24 and the third fixed frame 25 is increased. When the screw head retracts, the distance between the second baffle 24 and the third fixed frame 25 is reduced under the action of the second tension spring 27, thereby adjusting the relative rotation angle between the second attitude rod 19 and the telescope 36.

[0031] Rotating the first micrometer head 16 adjusts the yaw angle of the telescope 36 relative to the head-up display (HUD); rotating the second micrometer head 21 adjusts the pitch angle of the telescope 36 relative to the HUD; and rotating the third micrometer head 26 adjusts the roll angle of the telescope 36 relative to the HUD. This multi-angle adjustment capability allows the device to adapt to different orientations of the HUD.

[0032] Furthermore, in order to simplify the overall structural layout and reduce the space occupied by the equipment, such as Figure 8 As shown, the telescope 36 has a through first slot 28 and a through slot 29 on its frame. The second micrometer head 21 is located in the first slot 28, the second attitude rod 19 is located in the second slot 29, the second fixing bracket 20 and the second baffle 24 are located on the outer sides of both ends of the second slot 29, and the third fixing bracket 25 is located at the bottom of the telescope 36 frame on one side of the second slot 29.

[0033] The arrangement of the above structure not only reduces the overall size of the equipment, making the entire equipment structure compact, easy to carry and install, but also ensures that the telescope 36 will not interfere with the internal workpieces when adjusting its attitude. That is, during the adjustment process, the second micrometer head 21 will not contact the inner wall of the first through groove 28, and the second attitude rod 19 will not contact the inner wall of the second through groove 29.

[0034] Furthermore, in order to adapt the main bracket to the HUD, a bracket 30 can be installed on the horizontal bar 1, and a limit block 31 is installed on the back of the vertical bar 2. The bracket 30 can hang the main bracket on the HUD device to be tested. When the limit block 31 contacts the HUD, it indicates that the testing device has been installed in place.

[0035] Furthermore, to prevent the vertically arranged boom 11 from slipping between the first top block 5 and the first stop block 6 during height adjustment, a detachable limiting pin 32 can be installed at the upper end of the boom 11. When the boom 11 is no longer clamped between the first top block 5 and the first stop block 6, the limiting pin 32 can overlap between the tops of the first top block 5 and the first stop block 6, providing additional safety when the boom 11 is not clamped, preventing the boom 11 from accidentally falling off. This design ensures stability and safety during the measurement process.

[0036] Furthermore, to ensure the stability of the clamping of the lifting rod 11 between the stop block and the top block, a first inclined surface 33 may be provided on one side of the lifting rod 11, a second inclined surface 34 that cooperates with the first inclined surface 33 is provided on the inner side of the first stop block 6, and a third inclined surface 35 that cooperates with the first inclined surface 33 is provided on the inner side of the second top block 9. When the lifting rod 11 is vertically clamped between the first top block 5 and the first stop block 6, the second inclined surface 34 ensures that the lifting rod 11 will not move outward horizontally and detach. When the lifting rod 11 is horizontally clamped between the second stop block 10 and the second top block 9, the third inclined surface 35 also ensures that the lifting rod 11 will not move outward horizontally and detach.

[0037] Because this invention allows for parallax detection without disassembling the head-up display (HUD), it reduces the risk of equipment damage caused by disassembly and reinstallation, thus lowering maintenance costs. Simultaneously, the portability and efficiency of the device minimize production losses due to downtime for testing. The HUD parallax measurement device provided by this invention offers advantages such as high efficiency and convenience, precise adjustment, multi-angle adjustment, stable clamping, compact structure, easy installation and disassembly, and reduced maintenance costs, providing a novel solution for online parallax detection of HUDs.

[0038] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.

Claims

1. A head-up display parallax measuring device, characterized in that: The system includes a main support, which consists of a horizontally arranged crossbar (1) and a vertically arranged vertical bar (2). A first threaded sleeve block (3) is installed on the crossbar (1), and a first adjusting bolt (4) is fitted inside the first threaded sleeve block (3). A first top block (5) is installed at the end of the first adjusting bolt (4) that protrudes from the first threaded sleeve block (3). A first stop block (6) is also installed on the crossbar (1) corresponding to the position of the first top block (5). A second threaded sleeve block (7) is installed on the vertical bar (2), and a second adjusting bolt (8) is fitted inside the second threaded sleeve block (7). A second adjusting bolt (8) is installed at the end of the second adjusting bolt (8) that protrudes from the second threaded sleeve block (7). A top block (9) is installed on the vertical rod (2) at a position corresponding to the second top block (9). A clamping rod (11) is installed between the first top block (5) and the first stop (6) or between the second top block (9) and the second stop (10). A telescope (36) is installed at the end of the rod (11). The telescope (36) includes two sets of parallel lens tubes. The lenses of the lens tubes are provided with crosshairs. The rod (11) can be vertically raised and lowered between the first top block (5) and the first stop (6). The rod (11) can be horizontally adjusted between the second top block (9) and the second stop (10).

2. The head-up display parallax measuring device according to claim 1, characterized in that: The end of the boom (11) is equipped with a first attitude rod (13) via a first rotating shaft (12). A first baffle (14) is provided on one side of the boom (11). A first fixed frame (15) is installed on the first attitude rod (13). A first micrometer head (16) is provided on the first fixed frame (15). The screw head of the first micrometer head (16) can contact the first baffle (14). A first tension spring (17) is installed between the first fixed frame (15) and the first baffle (14). The first tension spring (17) always tends to pull the first fixed frame (15) to rotate closer to the first baffle (14). The end of the first attitude rod (13) away from the boom (11) is equipped with a second attitude rod (19) via a second pivot (18). A second fixed frame (20) is installed on the second attitude rod (19). A second micrometer head (21) is provided on the second fixed frame (20). The screw head of the second micrometer head (21) can contact the first fixed frame (15). A torsion spring (22) is installed on the second pivot (18). The torsion spring (22) always tends to make the first fixed frame (15) and the second fixed frame (20) rotate closer together. The second attitude rod (19) is connected to the telescope (36) via the third pivot (23). A second baffle (24) is installed at the end of the second attitude rod (19) away from the first attitude rod (13). A third fixing frame (25) is provided at the bottom of the telescope (36). A third micrometer head (26) is provided on the third fixing frame (25). The screw head of the third micrometer head (26) can contact the second baffle (24). A second tension spring (27) is also installed between the second baffle (24) and the third fixing frame (25). The second tension spring (27) always tends to pull the third fixing frame (25) to rotate closer to the second baffle (24). Rotating the first micrometer head (16) can adjust the yaw angle of the telescope (36) relative to the head-up display, rotating the second micrometer head (21) can adjust the pitch angle of the telescope (36) relative to the head-up display, and rotating the third micrometer head (26) can adjust the roll angle of the telescope (36) relative to the head-up display.

3. The head-up display parallax measuring device according to claim 2, characterized in that: The telescope (36) has a through first slot (28) and a second slot (29) on its frame. The second micrometer head (21) is located in the first slot (28), the second attitude rod (19) is located in the second slot (29), the second fixing bracket (20) and the second baffle (24) are located on the outer sides of the two ends of the second slot (29), and the third fixing bracket (25) is located at the bottom of the telescope (36) frame on one side of the second slot (29).

4. The head-up display parallax measuring device according to claim 1, characterized in that: A bracket (30) is installed on the horizontal bar (1), and a limit block (31) is installed on the back of the vertical bar (2). The bracket (30) can hang the main support on the flat panel display device to be tested.

5. A head-up display parallax measuring device according to claim 1, characterized in that: The upper end of the boom (11) is equipped with a detachable limiting pin (32). When the boom (11) is no longer clamped between the first top block (5) and the first stop block (6), the limiting pin (32) can overlap between the top of the first top block (5) and the first stop block (6).

6. The head-up display parallax measuring device according to claim 1, characterized in that: The boom (11) has a first inclined surface (33) on one side, the first stop block (6) has a second inclined surface (34) that cooperates with the first inclined surface (33) on the inner side, and the second top block (9) has a third inclined surface (35) that cooperates with the first inclined surface (33) on the inner side.

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