CN115268078A - Method for solving inaccurate image position adjustment of head-up display - Google Patents
Method for solving inaccurate image position adjustment of head-up display Download PDFInfo
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- CN115268078A CN115268078A CN202210980843.7A CN202210980843A CN115268078A CN 115268078 A CN115268078 A CN 115268078A CN 202210980843 A CN202210980843 A CN 202210980843A CN 115268078 A CN115268078 A CN 115268078A
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- limit switch
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
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- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
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- 238000001125 extrusion Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0161—Head-up displays characterised by mechanical features characterised by the relative positioning of the constitutive elements
- G02B2027/0163—Electric or electronic control thereof
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B2027/0192—Supplementary details
- G02B2027/0196—Supplementary details having transparent supporting structure for display mounting, e.g. to a window or a windshield
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Abstract
The invention discloses a method for solving inaccurate image position adjustment of a head-up display, wherein the head-up display comprises a main control unit and a curved reflector, and the method comprises the following steps: receiving an instruction of the main control unit; adjusting the position of the curved surface reflector according to the instruction of the main control unit, and judging whether the position of the curved surface reflector reaches a set position; if not, adjusting again. Through increasing the location motor, solve the inaccurate problem of location, between location motor and baffle, baffle and the limit switch, be direct fixation, do not have transmission, so do not have virtual position, whether curved surface speculum turned to the prospective position, whether through the briquetting push down limit switch come the judgement, also reduced the requirement to transmission design accuracy to a certain extent.
Description
Technical Field
The invention belongs to the technical field of image adjustment of a head-up display, and particularly relates to a method for solving inaccurate image position adjustment of the head-up display.
Background
Head-up displays are also known as heads-up displays. The aircraft flight assist device is commonly applied to aircraft at present, and is gradually popularized in automobiles nowadays. The head-up display aims to improve the safety of the automobile, so that the attention of a driver is focused on the road surface, and the occurrence of accidents is reduced. In recent years, the market of head-up displays has been rapidly developed, and more vehicle models are equipped with the head-up display products.
Referring to fig. 3 of the specification, a head-up display in the prior art mainly includes a Main Control Unit (MCU), a video projection unit (PGU), a plane mirror 13, a curved mirror 12, a stepping motor (i.e., an adjusting motor), a transmission device, a front windshield 11 of an automobile, and the like. The stepping motor is mainly used for adjusting the height of the image of the head-up display and is suitable for drivers with different heights. The conventional method for adjusting the height of an image uses a stepping motor to drive the curved mirror 12 to rotate through a transmission device, so as to achieve the purpose of adjusting the height. Because certain friction and energy loss exist between the stepping motor and the transmission device and between the transmission device and the curved surface reflector (especially when the stepping motor is just started, the energy loss is larger), a virtual position exists in the adjusting process, so that the actual rotating position of the curved surface reflector is smaller than the expected position, and the difference is not regularly circulated, so that the compensation cannot be made on software.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention is directed to a method for solving the inaccuracy of adjusting the image position of a head-up display.
The technical scheme adopted by the invention is as follows:
a method of resolving inaccurate image position adjustment for a heads-up display, the heads-up display including a master control unit and a curved mirror, the method comprising:
receiving an instruction of the main control unit;
adjusting the position of the curved surface reflector according to the instruction of the main control unit, and judging whether the position of the curved surface reflector reaches a set position;
if not, adjusting again.
As a preferred preference of the invention, the head-up display further comprises a positioning motor, an adjusting motor, a transmission device and an arc-shaped baffle fixedly connected with an output shaft of the positioning motor; a limit switch is fixedly arranged on the arc-shaped baffle; the curved surface reflector is fixedly provided with a pressing block, and the adjusting motor drives the curved surface reflector to rotate through the transmission device.
Preferably, the command includes a user setting a predetermined position of the limit switch.
As a preferable aspect of the present invention, the determining whether the position of the curved mirror reaches the set position specifically includes:
and when the limit switch reaches a preset position and the press block presses the limit switch, judging that the position of the curved surface reflector reaches a set position.
Preferably, the adjusting the position of the curved mirror and determining whether the position of the curved mirror reaches a set position includes: and adjusting and judging counterclockwise and adjusting and judging clockwise.
Preferably, the counter-clockwise adjustment comprises the following steps:
s1, starting the positioning motor, wherein the positioning motor controls the arc-shaped baffle to rotate until the limit switch reaches the preset position;
and S2, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector to rotate to a preset position through the transmission device.
Preferably, the clockwise adjustment and judgment comprises the following steps:
s1, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector to rotate through the transmission device;
s2, starting the positioning motor, wherein the positioning motor controls the arc-shaped baffle to rotate;
s3, when the position of the curved surface reflector reaches a set position, executing the step S4; when the position of the curved surface reflector does not reach a set position, judging whether the pressing block presses the limit switch or not, if so, returning to the step S1, and if not, returning to the step S2;
s4, judging whether the pressing block presses the limit switch or not, and if so, finishing the adjustment; if not, executing the step S5;
s5, restarting the adjusting motor: the main control unit controls the adjusting motor to rotate anticlockwise;
s6, judging whether the pressing block presses the limit switch or not, and if so, finishing the adjustment; if not, the process returns to the step S5.
Preferably, the limit switch further includes an initial position in which the pressing piece presses the limit switch.
Preferably, when the limit switch is pressed by the pressing block, the main control unit controls the curved reflector to rotate, so that the pressing block is far away from the limit switch; when the limit switch is pressed by the pressing block, the main control unit controls the arc-shaped baffle to rotate, so that the limit switch is far away from the pressing block.
Preferably, when the limit switch is pressed by the pressing block, the main control unit controls the curved reflector to rotate, so that the pressing block is far away from the limit switch; when the limit switch is pressed by the pressing block, the main control unit controls the arc-shaped baffle to rotate, so that the limit switch is far away from the pressing block.
Preferably, the radian of the curved reflector is consistent with that of the arc baffle; the projections of the curved surface reflector and the rotation center of the arc baffle on the vertical plane are overlapped.
The invention has the beneficial effects that:
1. the problem of inaccurate positioning is solved by adding the positioning motor, so that the adjustment precision of the curved surface reflector is not influenced by the precision of the transmission device any more.
2. Between location motor and baffle, baffle and the limit switch, be the snap-on, do not have transmission, so do not have the virtual position, because the location of location motor is accurate, so the adjusting position of curved surface speculum is also accurate.
3. Whether the curved surface reflector rotates to the expected position is judged by whether the pressing block presses the limit switch, the final result is not influenced by the size of the virtual position of the transmission device, and the requirement on the design precision of the transmission device is reduced to a certain extent.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the method steps of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the method steps of another embodiment of the present invention;
FIG. 3 is a schematic diagram of a prior art head-up display system;
FIG. 4 is a schematic view of a curved mirror adjustment control system of the present invention;
fig. 5 is a conceptual diagram of the installation of fig. 4 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Embodiments of the present invention are described below in conjunction with figures 1-5,
in one embodiment of the present invention, a method for solving inaccurate image position adjustment of a head-up display, the head-up display comprising a main control unit and a curved mirror 12, comprises:
receiving an instruction of the main control unit;
adjusting the position of the curved surface reflector 12 according to the instruction of the main control unit, and judging whether the position of the curved surface reflector 12 reaches a set position;
if not, adjusting again.
Beneficially, the head-up display further comprises a positioning motor 17, an adjusting motor, a transmission device and an arc-shaped baffle 14 fixedly connected with an output shaft of the positioning motor 17; a limit switch 15 is fixedly arranged on the arc baffle 14; the curved surface reflector 12 is fixedly provided with a pressing block 16, and the adjusting motor is in transmission connection with the curved surface reflector 12 through the transmission device.
Advantageously, said command comprises a user setting a predetermined position of said limit switch 15.
Advantageously, the adjusting the position of the curved mirror 12 and determining whether the position of the curved mirror 12 reaches a set position comprises: and adjusting and judging counterclockwise and adjusting and judging clockwise.
Advantageously, said counter-clockwise adjustment comprises the steps of:
s1, starting the positioning motor 17, wherein the positioning motor 17 controls the arc-shaped baffle 14 to rotate until the limit switch 15 reaches the preset position;
s2, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector 12 to rotate through the transmission device;
advantageously, the determining whether the position of the curved mirror 12 reaches the set position specifically includes:
when the limit switch 15 reaches a preset position and the press block 16 presses the limit switch 15, it is determined that the position of the curved mirror 12 reaches a set position.
In this embodiment, 1, at the beginning, the curved reflector 12 and the arc baffle 14 are both in a certain position, and the press block 16 presses the limit switch 14;2. the positioning motor 17 drives the limit switch 15 to rotate anticlockwise to a preset position set by a user; 3. the adjusting motor drives the curved surface reflector 12 to rotate anticlockwise through the transmission device until the limit switch 15 is pressed, and the position adjustment is completed.
In another embodiment of the present invention, the clockwise adjusting and judging comprises the following steps:
s1, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector 12 to rotate through the transmission device;
s2, starting the positioning motor 17, wherein the positioning motor 17 controls the arc-shaped baffle 14 to rotate;
s3, when the position of the curved surface reflector 12 reaches a set position, executing the step S4; when the position of the curved surface reflector 12 does not reach a set position, judging whether the pressing block 16 presses the limit switch 15, if so, returning to the step S1, and if not, returning to the step S2;
s4, judging whether the pressing block 16 presses the limit switch 15 or not, and if so, finishing the adjustment; if not, executing the step S5;
s5, restarting the adjusting motor: the main control unit controls the adjusting motor to rotate anticlockwise;
s6, judging whether the pressing block 16 presses the limit switch 15 or not, and if so, finishing the adjustment; if not, the process returns to the step S5.
In this embodiment, 1, the adjustment motor drives the curved reflector 12 to rotate clockwise by a certain arc (the arc can be defined according to the actual situation), so as to leave a rotating space for the arc-shaped baffle 14;2. the positioning motor 17 drives the arc baffle 14 to rotate clockwise; 3. if the predetermined position set by the user has been reached before the limit switch 15 is pressed, the positioning motor 17 stops at the desired position, and jumps to step 6 (in this case the curved mirror 12 turns clockwise over the head); 4. if the limit switch 15 is pressed but does not reach the preset position set by the user, jumping to the step 1; 5. if the limit switch 15 is pressed down and just reaches the preset position set by the user, the adjustment is directly finished; 6. the adjustment motor drives the curved surface reflector 12 to rotate counterclockwise until the limit switch 15 is pressed.
Advantageously, the limit switch 15 also comprises an initial position in which the pressure piece 16 presses the limit switch 15.
Advantageously, when the limit switch 15 is pressed by the pressing block 16, the main control unit controls the curved mirror 12 to rotate, so that the pressing block 16 is far away from the limit switch 15; when the limit switch 15 is pressed by the pressing block 16, the main control unit controls the arc-shaped baffle 14 to rotate, so that the limit switch 15 is far away from the pressing block 16.
Advantageously, when the limit switch 15 is pressed by the pressing block 16, the main control unit controls the curved mirror 12 to rotate, so that the pressing block 16 is far away from the limit switch 15; when the limit switch 15 is pressed by the pressing block 16, the main control unit controls the arc-shaped baffle 14 to rotate, so that the limit switch 15 is far away from the pressing block 16.
In another embodiment of the present invention, the curvature of the curved mirror 12 and the curved baffle 14 are uniform; the projections of the centers of rotation of the curved mirror 12 and the curved baffle 14 on a vertical plane coincide. The rotation center of the arc baffle 14 is arranged on the rotating shaft 18 of the positioning motor 17, and the rotation center of the curved reflector 12 is arranged on the extension line of the fixed rotating shaft 18.
The working principle of the invention is as follows:
referring to fig. 1-2, the start is receiving instructions from the master control unit, including the user setting the predetermined position of the limit switch 15 and the set position of the curved mirror 12; when the adjustment of the curved surface reflector 12 is finished, the main control unit controls the adjusting motor and/or the positioning motor 17 to stop rotating;
referring to fig. 4-5, the arc of the arc-shaped baffle 14 is consistent with the arc of the curved-surface reflector 12, and when the pressing block 16 presses the limit switch 15, the rotation amplitude of the curved-surface reflector 12 is consistent with the rotation amplitude of the arc-shaped baffle 14. The main control unit can drive the limit switch 15 to rotate by controlling the rotation of the positioning motor 17, so as to achieve the purpose of positioning. In addition, the main control unit can control the rotation of the adjusting motor, and simultaneously, whether the rotation amplitude of the curved surface reflector 12 is consistent with that of the arc-shaped baffle plate 14 or not is judged by detecting whether the limit switch 15 is pressed or not.
For limit switch 15, three wires need to be used: power lines, ground lines and signal lines. These three lines of limit switch 15 can select for use the copper silk thread, and along cowl 14 wiring, can satisfy the electric current demand (limit switch 15's electric current is very little), also can not influence cowl 14 and rotate (the copper silk thread is very light and pliability is good). When the limit switch 15 is pressed, the curved reflector 12 cannot rotate counterclockwise, and the arc-shaped baffle 14 cannot rotate forward, so that extrusion dislocation can be prevented.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. A method for solving inaccurate image position adjustment of a head-up display, wherein the head-up display comprises a main control unit and a curved reflector, the method comprising:
receiving an instruction of the main control unit;
adjusting the position of the curved surface reflector according to the instruction of the main control unit, and judging whether the position of the curved surface reflector reaches a set position;
if not, adjusting again.
2. The method of claim 1, wherein the head-up display further comprises a positioning motor, a regulating motor, a transmission device and an arc-shaped baffle plate connected with an output shaft of the positioning motor; a limit switch is fixedly arranged on the arc-shaped baffle; the curved surface reflector is fixedly provided with a pressing block, and the adjusting motor drives the curved surface reflector to rotate through the transmission device.
3. The method of claim 2, wherein the command comprises a user setting a predetermined position of the limit switch.
4. The method as claimed in claim 3, wherein the determining whether the position of the curved mirror reaches the predetermined position is specifically:
and when the limit switch reaches a preset position and the press block presses the limit switch, judging that the position of the curved surface reflector reaches a set position.
5. The method of claim 3, wherein the adjusting the position of the curved mirror and determining whether the position of the curved mirror reaches a predetermined position comprises: and adjusting and judging counterclockwise and adjusting and judging clockwise.
6. The method of claim 5, wherein the counterclockwise adjustment comprises the steps of:
s1, starting the positioning motor, wherein the positioning motor controls the arc-shaped baffle to rotate until the limit switch reaches the preset position;
and S2, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector to rotate to a preset position through the transmission device.
7. The method of claim 5, wherein the clockwise adjustment and judgment comprises the following steps:
s1, starting the adjusting motor, wherein the adjusting motor drives the curved surface reflector to rotate through the transmission device;
s2, starting the positioning motor, wherein the positioning motor controls the arc-shaped baffle to rotate;
s3, when the position of the curved surface reflector reaches a set position, executing the step S4; when the position of the curved surface reflector does not reach a set position, judging whether the pressing block presses the limit switch or not, if so, returning to the step S1, and if not, returning to the step S2;
s4, judging whether the pressing block presses the limit switch or not, and if so, finishing the adjustment; if not, executing the step S5;
s5, restarting the adjusting motor: the main control unit controls the adjusting motor to rotate anticlockwise;
s6, judging whether the pressing block presses the limit switch or not, and if so, finishing the adjustment; if not, the process returns to the step S5.
8. The method as claimed in claim 6 or 7, wherein the limit switch further comprises an initial position, and the pressing block presses the limit switch at the initial position.
9. The method as claimed in claim 8, wherein when the limit switch is pressed by the pressing block, the main control unit controls the curved mirror to rotate so that the pressing block is away from the limit switch; when the limit switch is pressed by the pressing block, the main control unit controls the arc-shaped baffle to rotate, so that the limit switch is far away from the pressing block.
10. The method of claim 2, wherein the curved mirror and the curved barrier have a uniform arc; the projections of the curved surface reflector and the rotation center of the arc baffle on the vertical plane are overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980843.7A CN115268078A (en) | 2022-08-16 | 2022-08-16 | Method for solving inaccurate image position adjustment of head-up display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980843.7A CN115268078A (en) | 2022-08-16 | 2022-08-16 | Method for solving inaccurate image position adjustment of head-up display |
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| Publication Number | Publication Date |
|---|---|
| CN115268078A true CN115268078A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210980843.7A Pending CN115268078A (en) | 2022-08-16 | 2022-08-16 | Method for solving inaccurate image position adjustment of head-up display |
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| CN (1) | CN115268078A (en) |
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- 2022-08-16 CN CN202210980843.7A patent/CN115268078A/en active Pending
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