A HUD image position adjustment device, related equipment and implementation method

Abstract

The present invention provides a HUD image position adjustment device, related equipment and implementation method, including an adjustment area, a photoelectric switch, a fan-shaped baffle, a stepper motor and a reflector, the photoelectric switch is fixed in the adjustment area, the fan-shaped baffle is driven by the stepper motor and rotates around the rotation point, and the reflector rotates with the fan-shaped baffle, and the adjustment area includes: a first area, which is a target adjustment area; a second area, which is an area between the photoelectric switch and the upper limit line; a third area, which is a fan-shaped baffle area; a fourth area, which is an area between the target adjustment area and the photoelectric switch; a fifth area, which is an area between the fan-shaped baffle and the photoelectric switch when the fan-shaped baffle is in a closed position, and the fan-shaped baffle is in a closed position when it contacts the lower limit line; wherein, the angle of the third area>the angle of the second area>the angle of the first area, the angle of the fourth area, the angle of the fifth area, and the angle of the third area≤the angle of the adjustment area. The present invention has a simple structure, low cost and reliable stability.

Description

Technical Field

[0001] The present invention relates to the field of HUD image technology, and in particular to a HUD image position adjustment device, related equipment and implementation method. Background Art

[0002] Heads Up Display (HUD), windshield instrument display, also known as head-up display system, can map important information (such as vehicle speed, navigation, vehicle condition and other data) on the holographic half mirror on the windshield, so that the driver can see the important information without lowering his head.

[0003] In current automotive HUD products, including C-HUD (Combiner HUD) and W-HUD (Windshield HUD), the position of the displayed image needs to be adjusted by adjusting a set of reflectors. In addition, the position set by the user needs to be recorded and restored after each restart, so that users have a good user experience.

[0004] However, the current HUD products mostly use limit switches and stepper motors to control the final reflector position to achieve the control of the imaging position, so there are the following disadvantages:

[0005] 1. The positioning switch in the current product is far away from the target positioning area, and the final positioning error is large.

[0006] 2. Contact positioning has the risk of extrusion damage and a high probability of failure.

[0007] 3. Limit switch positioning cannot accurately understand the state of the reflector at the initial power-on. Summary of the invention

[0008] The present invention provides a HUD image position adjustment device, related equipment and implementation method, which solves the technical problems of large positioning error, high failure probability and unknown initial state in the prior art by adopting a non-contact positioning method and a suitable angle design.

[0009] A first aspect of the present invention provides a HUD image position adjustment device, comprising an adjustment area consisting of upper and lower limit lines extending from a rotation point, a photoelectric switch, a fan-shaped baffle, a stepping motor and a reflector, wherein the photoelectric switch is fixed in the adjustment area, the fan-shaped baffle is driven by the stepping motor and rotates around the rotation point, and the reflector rotates with the fan-shaped baffle, and the adjustment area includes:

[0010] A first region, which is a target regulation region;

[0011] The second area is the area between the photoelectric switch and the upper limit line;

[0012] The third area is a fan-shaped baffle area;

[0013] A fourth area, which is an area between the target adjustment area and the photoelectric switch;

[0014] The fifth area is the area of ​​the fan-shaped baffle from the photoelectric switch when the fan-shaped baffle is in the closed position, and the fan-shaped baffle is in the closed position when it contacts the lower limit line;

[0015] Among them, the angle of the third area>the angle of the second area>the angle of the first area, the angle of the fourth area, the angle of the fifth area, and the angle of the third area≤the angle of the adjustment area.

[0016] Optionally, the reduction ratio between the reflector and the sector baffle is 1:1.

[0017] Optionally, when the fan-shaped baffle rotates to the position where the photoelectric switch is located and blocks the photoelectric switch, the photoelectric switch will generate a signal jump to change the photoelectric switch from an on state to an off state.

[0018] Optionally, the angle of the adjustment area is 90°, the angle of the first area is 10°, the angle of the second area is 20°, the angle of the third area is 65°, the angle of the fourth area is 5°, and the angle of the fifth area is 5°.

[0019] A second aspect of the present invention provides a method for implementing a HUD image position adjustment device, wherein the HUD image position adjustment device described above performs the following steps:

[0020] When it is opened to the display position, the opening action is performed and steps 1 to 7 are executed;

[0021] When closing from the display position, perform the closing action and execute steps 1 to 6 and 8;

[0022] Step 1: Determine whether the photoelectric switch is in the on state. If yes, proceed to step 2; otherwise, proceed to step 4.

[0023] Step 2: The stepper motor drives the fan-shaped baffle to rotate counterclockwise within the adjustment area;

[0024] Step 3, determine whether the photoelectric switch generates a signal jump when rotating counterclockwise, if yes, execute step 6, otherwise return to execute step 2;

[0025] Step 4: The stepper motor drives the fan-shaped baffle to rotate clockwise within the adjustment area;

[0026] Step 5, determine whether the photoelectric switch generates a signal jump when rotating clockwise, if yes, execute step 6, otherwise return to execute step 4;

[0027] Step 6: Update the relative position to 0 position;

[0028] Step 7: According to the preset rules, control the stepper motor to run the corresponding number of steps counterclockwise, and then end the relevant operation;

[0029] Step 8: According to the preset rules, control the stepper motor to run the corresponding number of steps clockwise, and then end the related operations.

[0030] Optionally, the photoelectric switch generates a signal jump after being blocked by the fan-shaped baffle.

[0031] A third aspect of the present invention provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the steps of the implementation method of the above-mentioned HUD image position adjustment device.

[0032] A fourth aspect of the present invention provides a processor, which is used to run a program, and when the program is running, the steps of the implementation method of the above-mentioned HUD image position adjustment device are executed.

[0033] A fifth aspect of the present invention provides a terminal device, which includes a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program code is loaded and executed by the processor to implement the steps of the implementation method of the above-mentioned HUD image position adjustment device.

[0034] A sixth aspect of the present invention provides a computer program product which, when executed on a data processing device, is suitable for executing the steps of the implementation method of the above-mentioned HUD image position adjustment device.

[0035] In the embodiment provided by the present invention, non-contact positioning is used to adjust the HUD image position, which has a simple structure, low cost, reliable stability, and non-contact positioning can ensure that the relative position is relatively accurate. The present invention can detect the state of the photoelectric switch and can locate the detection position by adjusting the angle set in the area, and the relative position can be updated and calibrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a HUD image position adjustment device provided in an embodiment of the present invention;

[0037] Figure 2 One of the flowcharts of the method for implementing the HUD image position adjustment device provided in the embodiment of the present invention;

[0038] Figure 3The second flowchart of the method for implementing the HUD image position adjustment device provided in the embodiment of the present invention. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices. The division of modules that appear in the present invention is only a logical division. There may be other division methods when implemented in actual applications, such as multiple modules can be combined or integrated into another system, or some feature vectors can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between modules can be electrical or other similar forms, which are not limited in the present invention. Furthermore, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed in multiple circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present invention.

[0041] HUD uses the principle of optical reflection to display information such as speeding warning, vehicle condition monitoring, fuel consumption, speed, and rear-end collision prevention on the windshield, allowing the driver to focus on the road ahead and achieve active driving safety. The technical principle of HUD is similar to that of slide projection. The light information emitted by the projector is reflected by the "reflector" to the "projection mirror", and then reflected by the "projection mirror" to the "windshield". The human eye sees a virtual image located 2-2.5 meters in front of the eyes.

[0042] The position of the HUD image on the windshield is adjustable, and the key is the "projection mirror". By changing the angle of the "projection mirror", the position of the HUD image can be adjusted.

[0043] The key component of HUD car head-up display is the projection unit, which integrates the projector, reflector, projection mirror, adjustment motor and control unit. The HUD control unit obtains vehicle speed, navigation and other information from the vehicle data bus and outputs images on the projector.

[0044] The following combination Figure 1 For a description of the HUD image position adjustment device, please refer to Figure 1 , Figure 1 A schematic diagram of a HUD image position adjustment device provided for an embodiment of the present invention comprises an adjustment area 5 consisting of an upper limit line 2 and a lower limit line 3 extending from a rotation point 1, a photoelectric switch 4, a fan-shaped baffle 6, a stepper motor (not shown in the figure) and a reflector (not shown in the figure).

[0045] The photoelectric switch 4 is fixed in the adjustment area 5 .

[0046] The fan-shaped baffle 6 is driven by a stepper motor to rotate around the rotation point 1, but the fan-shaped baffle 6 must rotate within the adjustment area 5, that is, it cannot exceed the upper limit line 2 and the lower limit line 3. When the fan-shaped baffle 6 contacts the lower limit line, it is in the closed position; when the fan-shaped baffle 6 rotates to the position where the photoelectric switch 4 is located and blocks the photoelectric switch 4, the photoelectric switch 4 will generate a signal jump, causing the photoelectric switch 4 to change from the on state to the off state.

[0047] Among them, the stepper motor can be stalled. Motor stalling is a situation in which the motor still outputs torque when the speed is 0. A stepper motor is a motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. For each input pulse signal, the rotor rotates an angle or moves forward. The output angular displacement or linear displacement is proportional to the number of input pulses, and the speed is proportional to the pulse frequency. Therefore, the stepper motor is also called a pulse motor.

[0048] The reflector rotates along with the sector baffle 6 , that is, the reflector and the sector baffle are directly linked, and the reduction ratio between the reflector and the sector baffle 6 is 1:1.

[0049] In this embodiment, the adjustment area 5 includes a first area A, a second area B, a third area C, a fourth area D and a fifth area E.

[0050] Among them, the first area A is the target adjustment area, the second area B is the area between the photoelectric switch and the upper limit line, the third area C is the fan-shaped baffle area, the fourth area D is the area between the target adjustment area and the photoelectric switch, and the fifth area E is the area between the fan-shaped baffle and the photoelectric switch when it is in the closed position.

[0051] The angular relationship of the above five areas is:

[0052] The angle of the third area C>the angle of the second area B>the angle of the first area A, the angle of the fourth area D, and the angle of the fifth area E. The angle of the third area C≤the angle of the adjustment area 5.

[0053] Preferably, the angle of the fourth area D and the angle of the fifth area E are as small as possible within an error range, so that the positioning is more accurate.

[0054] In one embodiment, the angle of the adjustment area is 90°, the angle of the first area is 10°, the angle of the second area is 20°, the angle of the third area is 65°, the angle of the fourth area is 5°, and the angle of the fifth area is 5°. Of course, the angles of the first to fifth areas can also be other angles, as long as the angle relationship of the above five areas is satisfied.

[0055] Combine the following Figure 2-Figure 3 The implementation method of the HUD image position adjustment device provided in an embodiment of the present invention is described.

[0056] Figure 2 One of the flow charts of the implementation method of the HUD image position adjustment device provided in the embodiment of the present invention is shown in the figure.

[0057] When turned to the display position, the implementation method of the HUD image position adjustment device includes:

[0058] Step 201, determine whether the photoelectric switch is in the on state, if yes, execute step 202, otherwise execute step 204;

[0059] Step 202: The stepper motor drives the fan-shaped baffle to rotate counterclockwise within the adjustment area;

[0060] Step 203, determine whether the photoelectric switch generates a signal jump when rotating counterclockwise, if yes, execute step 206, otherwise return to execute step 202;

[0061] Step 204: The stepper motor drives the fan-shaped baffle to rotate clockwise in the adjustment area;

[0062] Step 205, determine whether the photoelectric switch generates a signal jump when rotating clockwise, if yes, execute step 206, otherwise return to execute step 204;

[0063] Step 206, update the relative position to position 0;

[0064] Step 207: According to a preset rule, control the stepper motor to run a corresponding number of steps counterclockwise, and then end the related operations.

[0065] Figure 3The second flowchart of the implementation method of the HUD image position adjustment device provided in the embodiment of the present invention is shown in the figure.

[0066] When closing from the display position, the implementation method of the HUD image position adjustment device includes:

[0067] Step 301, determine whether the photoelectric switch is in the on state, if yes, execute step 302, otherwise execute step 304;

[0068] Step 302: The stepper motor drives the fan-shaped baffle to rotate counterclockwise within the adjustment area;

[0069] Step 303, determine whether the photoelectric switch generates a signal jump when rotating counterclockwise, if yes, execute step 306, otherwise return to execute step 302;

[0070] Step 304: The stepper motor drives the fan-shaped baffle to rotate clockwise in the adjustment area;

[0071] Step 305, determine whether the photoelectric switch generates a signal jump when rotating clockwise, if yes, execute step 306, otherwise return to execute step 304;

[0072] Step 306, update the relative position to 0 position;

[0073] Step 307: According to a preset rule, control the stepper motor to run a corresponding number of steps clockwise, and then end the related operations.

[0074] The above-mentioned preset setting rules can be set according to the actual product requirements, and the present invention is not limited thereto.

[0075] In summary, the embodiment of the present invention adopts non-contact positioning to adjust the HUD image position, which has a simple structure, low cost, reliable stability, and non-contact positioning can ensure that the relative position is relatively accurate. The present invention can detect the state of the photoelectric switch and locate the detection position by adjusting the angle set in the area, and the relative position can be updated and calibrated.

[0076] An embodiment of the present invention further provides a computer-readable storage medium on which a program is stored. When the program is executed by a processor, the steps of the implementation method of the above-mentioned HUD image position adjustment device are implemented.

[0077] An embodiment of the present invention further provides a processor, which is used to run a program, wherein the program executes the steps of the implementation method of the above-mentioned HUD image position adjustment device when running.

[0078] An embodiment of the present invention also provides a terminal device, which includes a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program code is loaded and executed by the processor to implement the steps of the implementation method of the above-mentioned HUD image position adjustment device.

[0079] The present invention also provides a computer program product, which, when executed on a data processing device, is suitable for executing the steps of the implementation method of the above-mentioned HUD image position adjustment device.

[0080] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0081] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0082] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0083] The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products of the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0084] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0085] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0086] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0087] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0088] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0089] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0090] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A HUD image position adjustment device, comprising an adjustment area consisting of upper and lower limit lines extending from a rotation point, a photoelectric switch, a fan-shaped baffle, a stepper motor and a reflector, wherein the photoelectric switch is fixed in the adjustment area, the fan-shaped baffle is driven by the stepper motor and rotates around the rotation point, and the reflector rotates with the fan-shaped baffle, characterized in that: The adjustment area includes: A first region, which is a target regulation region; The second area is the area between the photoelectric switch and the upper limit line; The third area is a fan-shaped baffle area; A fourth area, which is an area between the target adjustment area and the photoelectric switch; The fifth area is the area of ​​the fan-shaped baffle from the photoelectric switch when the fan-shaped baffle is in the closed position, and the fan-shaped baffle is in the closed position when it contacts the lower limit line; Among them, the angle of the third area>the angle of the second area>the angle of the first area, the angle of the fourth area, the angle of the fifth area, and the angle of the third area≤the angle of the adjustment area.

2. The HUD image position adjustment device according to claim 1, characterized in that: The speed reduction ratio between the reflector and the sector baffle is 1:

1.

3. The HUD image position adjustment device according to claim 1, characterized in that: When the fan-shaped baffle rotates to the position where the photoelectric switch is located and blocks the photoelectric switch, the photoelectric switch will generate a signal jump so that the photoelectric switch changes from an on state to an off state.

4. The HUD image position adjustment device according to claim 1, characterized in that: The angle of the adjustment area is 90°, the angle of the first area is 10°, the angle of the second area is 20°, the angle of the third area is 65°, the angle of the fourth area is 5°, and the angle of the fifth area is 5°.

5. A method for implementing a HUD image position adjustment device, characterized in that: The HUD image position adjustment device according to any one of claims 1 to 4 performs the following steps: When it is opened to the display position, the opening action is performed and steps 1 to 7 are executed; When closing from the display position, perform the closing action and execute steps 1 to 6 and 8; Step 1: Determine whether the photoelectric switch is in the on state. If yes, proceed to step 2; otherwise, proceed to step 4. Step 2: The stepper motor drives the fan-shaped baffle to rotate counterclockwise within the adjustment area; Step 3, determine whether the photoelectric switch generates a signal jump when rotating counterclockwise, if yes, execute step 6, otherwise return to execute step 2; Step 4: The stepper motor drives the fan-shaped baffle to rotate clockwise within the adjustment area; Step 5, determine whether the photoelectric switch generates a signal jump when rotating clockwise, if yes, execute step 6, otherwise return to execute step 4; Step 6: Update the relative position to 0 position; Step 7: According to the preset rules, control the stepper motor to run the corresponding number of steps counterclockwise, and then end the relevant operation; Step 8: According to the preset rules, control the stepper motor to run the corresponding number of steps clockwise, and then end the related operations.

6. The method for implementing the HUD image position adjustment device according to claim 5, characterized in that: The photoelectric switch generates a signal jump after being blocked by the fan-shaped baffle.

7. A computer-readable storage medium having a program stored thereon, characterized in that: The program is executed by a processor to perform the steps of the method for implementing the HUD image position adjustment device as claimed in claim 5 or 6.

8. A processor, the processor being used to run a program, characterized in that: When the program is running, the steps of the method for implementing the HUD image position adjustment device as claimed in claim 5 or 6 are executed.

9. A terminal device, comprising a processor, a memory, and a program stored in the memory and executable on the processor, characterized in that: The program code is loaded by the processor and executes the steps of the implementation method of the HUD image position adjustment device as claimed in claim 5 or 6.

10. A computer program product, when executed on a data processing device, characterized in that Suitable for executing the steps of the method for implementing the HUD image position adjustment device as described in claim 5 or 6.

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