Head-up display control method, device and equipment, medium and vehicle

Abstract

The invention relates to a head-up display control method, device and equipment, a medium and a vehicle in the technical field of vehicles. The control method comprises the steps that in response to a first control instruction for a target person to wear sunglasses, a first light reflecting plate is controlled to enter a preset light path, a light source is controlled to emit first polarized light, so that the first polarized light is reflected by the first light reflecting plate and transmitted along the preset light path, and the first polarized light can be transmitted into the eyes of the target person through the sunglasses. Therefore, when it is determined that the target person wears the sunglasses, the first light reflecting plate is controlled to enter the preset light path, the first light reflecting plate is used for reflecting the first polarized light emitted by the light source, the reflected first polarized light is transmitted along the preset light path, and the first polarized light can penetrate through the sunglasses to be transmitted into the eyes of the target person. Therefore, the target person can see the display content of the head-up display under the condition that the target person wears sunglasses, the whole process does not need manual operation of the target person, and the use experience of the user is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a control method, device, equipment, medium and vehicle for a head-up display. Background Art

[0002] Vehicles are becoming increasingly popular in people's daily lives, and people's requirements for driving experience are also increasing. Head Up Display (HUD) has gradually become an essential device in vehicles.

[0003] In a traditional windshield head-up display (Windshield HUD, W-HUD for short), the light emitted by the light source is mainly vertically polarized light (Senkrecht, S-polarized light for short), and the working principle of mainstream polarized sunglasses is to filter out S-polarized light and transmit parallel polarized light (Parallel, P-polarized light for short). As a result, the target person cannot see the display content of the head-up display when wearing sunglasses, affecting the user experience. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a head-up display control method, device, equipment, medium and vehicle.

[0005] In a first aspect, the present disclosure provides a control method for a head-up display, the head-up display comprising a control unit, a first reflector, and a light source, the control method being executed by the control unit, the control method comprising:

[0006] In response to a first control instruction for a target person to wear sunglasses, the first reflector is controlled to enter a preset light path and the light source is controlled to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted through the sunglasses to the eyes of the target person.

[0007] Optionally, controlling the first reflector to enter a preset light path includes:

[0008] The first reflector is controlled to rotate along a first direction by a preset angle to drive the first reflector to enter the preset light path.

[0009] Optionally, the control method further includes:

[0010] In response to a second control instruction that the target person is not wearing glasses, the first reflector is controlled to withdraw from the preset light path and the light source is controlled to emit the second polarized light.

[0011] Optionally, controlling the first reflector to withdraw from the preset light path includes:

[0012] The first reflector is controlled to rotate along a second direction at a preset angle so that the first reflector is withdrawn from the preset light path; wherein the second direction is opposite to the first direction.

[0013] Optionally, the first polarized light is parallel polarized light; and the control method further includes:

[0014] In response to a first control instruction for a target person to wear sunglasses, controlling the light source to increase brightness to a first brightness;

[0015] In response to a second control instruction for the target person not wearing glasses, controlling the light source to reduce brightness to a second brightness;

[0016] The second brightness is smaller than the first brightness.

[0017] In a second aspect, the present disclosure further provides a method for controlling a head-up display, the method being executed by a vehicle host; the method comprising:

[0018] Determine that the target person wears sunglasses, and transmit a first control instruction to a control unit of a head-up display; the control unit controls the first reflector to enter a preset light path and controls the light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can pass through the sunglasses and be transmitted to the eyes of the target person. Optionally, determining that the target person wears sunglasses includes:

[0019] Acquire a target person image and identify target person information; the target person information includes at least one of a proportion of an eye area in a face area and an eye-covered area;

[0020] If at least one of the following conditions is met: the proportion of the eye area in the face area is greater than a preset proportion and the eye-covered area is greater than a preset area, it is determined that the target person is wearing sunglasses.

[0021] Optionally, the target person information further includes line of sight height, and the control method further includes:

[0022] The preset angle is determined based on the sight line height and the correlation between the sight line height and the preset angle; wherein the preset angle is the angle that the first reflector needs to rotate to enter the preset light path; and the preset angle is positively correlated with the sight line height.

[0023] In a third aspect, the present disclosure further provides a control device for a head-up display, the control device being applied to a control unit in the head-up display, the control device comprising:

[0024] A control module is used to respond to a first control instruction for determining that a target person is wearing sunglasses, control a first reflector to enter a preset light path and control a light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

[0025] In a fourth aspect, the present disclosure further provides an electronic device, including: a memory and a processor;

[0026] The memory stores executable programs or instructions;

[0027] The processor runs the program or instruction to implement the steps of any one of the control methods provided in the first aspect, and / or to implement the steps of any one of the control methods provided in the second aspect.

[0028] In a fifth aspect, the present disclosure further provides a computer-readable medium having a computer program or instructions stored thereon, wherein the computer program or instructions are executed by a processor to implement the steps of any of the above-mentioned control methods.

[0029] In a sixth aspect, the present disclosure further provides a vehicle, comprising: a head-up display and a control device for the head-up display.

[0030] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0031] In the technical solution provided in the present invention, when it is determined that the target person is wearing sunglasses, the vehicle host sends a first control instruction to the control unit of the head-up display. Based on the first control instruction, the control unit controls the first reflector to enter a preset light path, and uses the first reflector to reflect the first polarized light emitted by the light source. The reflected first polarized light is transmitted along the preset light path. The first polarized light can be transmitted to the eyes of the target person through the sunglasses, so that the target person can see the display content of the head-up display even when wearing sunglasses. The entire process does not require manual operation by the target person, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] Figure 1 A flowchart of a method for controlling a head-up display provided by an embodiment of the present disclosure;

[0035] Figure 2 A schematic diagram of the structure of a head-up display provided in an embodiment of the present disclosure;

[0036] Figure 3 A schematic diagram of the structure of another head-up display provided in an embodiment of the present disclosure;

[0037] Figure 4 A flowchart of another method for controlling a head-up display provided by an embodiment of the present disclosure;

[0038] Figure 5 for Figure 4 A detailed flow chart of "determining that a target person wears sunglasses" in the control method of the head-up display shown;

[0039] Figure 6 A schematic diagram of the structure of a control device for a head-up display provided in an embodiment of the present disclosure;

[0040] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure;

[0041] Figure 8 A schematic structural diagram of a vehicle lift provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0044] In order to solve the technical problems raised in the background technology section, the embodiments of the present disclosure provide a control method, device, equipment, medium, head-up display and vehicle for a head-up display. The control method includes: in response to a first control instruction for a target person wearing sunglasses, controlling a first reflector to enter a preset light path and controlling a light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted through the sunglasses to the eyes of the target person. Thus, when it is determined that the target person is wearing sunglasses, the vehicle host sends a first control instruction to the control unit of the head-up display, and the control unit controls the first reflector to enter the preset light path based on the first control instruction, and uses the first reflector to reflect the first polarized light emitted by the light source, and the reflected first polarized light is transmitted along the preset light path, and finally the first polarized light can be transmitted through the sunglasses to the eyes of the target person, so that the target person can also see the display content of the head-up display when wearing sunglasses, and the whole process does not require manual operation by the target person, thereby improving the user experience.

[0045] In the following, in conjunction with the accompanying drawings, the control method, device, equipment, medium and vehicle of the head-up display provided by the embodiments of the present disclosure are exemplarily described.

[0046] For example, Figure 1 A flowchart of a method for controlling a head-up display provided by an embodiment of the present disclosure. Figure 1 The control method is executed by a control unit in the head-up display, and the control method comprises the following steps:

[0047] S100, in response to a first control instruction for a target person to wear sunglasses, controlling the first reflector to enter a preset light path and controlling the light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

[0048] The target person includes but is not limited to the driver, and may also include other passengers, such as the co-pilot; the corresponding light source and reflector may be adjusted according to different target persons.

[0049] Among them, the preset light path is the transmission path of the light emitted by the light source between the optical components in the head-up display. Finally, the light is reflected by the imaging part and transmitted to the eyes of the target person, so that the target person can see the display content.

[0050] The first polarized light is polarized light that can pass through the sunglasses and is not filtered out by the sunglasses. Since the working principle of the current mainstream sunglasses is to filter S polarized light and transmit P polarized light, the first polarized light is P polarized light. In other embodiments, if the sunglasses filter P polarized light and transmit S polarized light, the first polarized light can also be set to S polarized light.

[0051] The light source may be any type of light emitting device known to those skilled in the art, such as a picture generation unit (PGU), which is not limited here.

[0052] Among them, the first reflective plate has a high reflectivity for the first polarized light, so that most of the first polarized light is reflected into the preset light path, thereby ensuring the integrity and clarity of the imaging, and the user can clearly see the displayed content.

[0053] Among them, combined Figure 7 The head-up display 100 includes a control unit 5, a first reflector 1 and a light source 3. Exemplarily, the control unit 5 is a single chip microcomputer. The working principle of the control unit 5 is as follows: when the control unit 5 receives a first control instruction for the target person to wear sunglasses, it responds to the first control instruction, controls the first reflector 1 to enter the preset light path, and controls the light source 3 to emit the first polarized light; after entering the preset light path, the first reflector 1 reflects the first polarized light emitted by the light source 3, so that the first polarized light is transmitted along the preset light path until it penetrates the sunglasses and enters the eyes of the target person. In this way, the target person can still see the display content of the head-up display when wearing sunglasses. The whole process does not require manual operation by the target person, which improves the user experience.

[0054] For example, Figure 2 As shown, when the first reflector 1 is in the initial position, the first reflector 1 is not in the preset light path and cannot reflect the first polarized light; when receiving the first control instruction for the target person to wear sunglasses 4, the control unit (not shown in the figure) controls the first reflector 1 to enter the preset light path, and at the same time controls the light source 3 to emit the first polarized light, so that the first polarized light emitted by the light source 3 is reflected on the surface of the first reflector 1, and the first polarized light is reflected on other optical components of the head-up display and continues to be transmitted, and finally the first polarized light is transmitted to the eyes of the target person through the sunglasses 4. In this way, the target person can also see the display content of the head-up display when wearing sunglasses 4. The entire process does not require manual operation by the target person, which improves the user experience.

[0055] It should be noted that Figure 2 It is only exemplarily shown that no other optical components are arranged between the first reflector 1 and the light source 3. The first reflector 1 is the optical reflective component closest to the light source 3, but it does not constitute a limitation on the control method of the head-up display provided by the embodiment of the present disclosure. In other embodiments, other optical components may be arranged between the first reflector 1 and the light source 3, which is not limited here.

[0056] The disclosed embodiment provides a control method for a head-up display, including: in response to a first control instruction for a target person to wear sunglasses, controlling a first reflector to enter a preset optical path and controlling a light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset optical path, and the first polarized light can be transmitted through the sunglasses to the eyes of the target person. Thus, when a first control instruction for a target person to wear sunglasses is received, in response to the first control instruction, the first reflector is controlled to enter a preset optical path, the first polarized light emitted by the light source is reflected by the first reflector, the reflected first polarized light is transmitted along the preset optical path, and finally the first polarized light can be transmitted through the sunglasses to the eyes of the target person, so that the target person can also see the display content of the head-up display when wearing sunglasses, and the entire process does not require manual operation by the target person, thereby improving the user experience.

[0057] In some embodiments, “controlling the first reflector to enter a preset light path” comprises the following steps:

[0058] The reflective plate is controlled to rotate along a first direction by a preset angle so that the first reflective plate enters a preset light path.

[0059] In this embodiment, the first reflector can be connected to the driving mechanism, and the driving mechanism can be controlled to move in a set manner, thereby driving the first reflector to move together until the first reflector enters a set position of a preset light path, so that at least part of the first polarized light emitted by the light source can be emitted by the first reflector.

[0060] For example, Figure 2 As shown, when the first reflector 1 is in the initial position, the first reflector 1 is not in the preset light path and cannot reflect the first polarized light; after receiving the first control instruction to determine that the target person is wearing sunglasses, the first reflector 1 is controlled to enter the preset light path, that is, the first reflector 1 is adjusted from a vertical state to an inclined state; specifically: by controlling the driving mechanism to rotate the preset angle θ along the first direction, the first reflector 1 is driven to rotate the preset angle θ together, so that the first reflector 1 enters the preset light path and can reflect the first polarized light, and the reflected first polarized light is transmitted along the subsequent light path, and finally the first polarized light is transmitted to the eyes of the target person through the sunglasses 4. Among them, the range of the preset angle θ is 0° to 100°; optionally, the preset angle θ is set to 25°.

[0061] It is understandable that Figure 2 The example only shows that the first reflector 1 is adjusted in rotation angle to enter the preset light path, but does not constitute a limitation on the control method of the head-up display provided in the embodiment of the present disclosure. In other embodiments, the first reflector 1 may be made to enter the preset light path in other ways, such as translating a preset distance in a set direction, which is not limited here.

[0062] In some embodiments, the preset angle is positively correlated with the sight height of the target person.

[0063] The sight height of the target person is the vertical distance between the eye position of the target person and the reference plane. The disclosed embodiment does not limit the setting of the reference plane. The plane where the seat is located can be used as the reference plane, and the sight height of the target person is the vertical distance from the eye position to the plane where the seat is located; the vehicle floor can also be used as the reference plane, and the sight height of the target person is the vertical distance from the eye position to the plane where the vehicle floor is located; or other planes known to those skilled in the art can be used as the reference plane, which is not limited here.

[0064] Combination Figure 2 , the size of the preset angle θ will directly affect the incident angle of the light emitted by the light source 3 when it is reflected on the surface of the first reflector 1, and thus will affect the imaging position. In the disclosed embodiment, the preset angle θ is positively correlated with the sight height of the target person. The larger the sight height, the larger the preset angle θ, the larger the rotation angle of the first reflector 1 entering the preset light path, and the higher the corresponding imaging position; the smaller the sight height, the smaller the preset angle θ, the smaller the rotation angle of the first reflector 1 entering the preset light path, and the lower the corresponding imaging position; in this way, for target persons with different sight heights, by controlling the rotation angle of the first reflector 1 entering the preset light path, the height of the imaging position is matched with the sight height, so as to avoid the target person viewing the displayed content at a large upward or downward angle, thereby alleviating cervical fatigue.

[0065] In some embodiments, the control method further comprises the following steps:

[0066] In response to the second control instruction for the target person not wearing glasses, the first reflector is controlled to withdraw from the preset light path and the light source is controlled to emit the second polarized light.

[0067] The polarization direction of the second polarized light is different from that of the first polarized light; for example, the first polarized light is P polarized light, and the second polarized light is S polarized light. The second polarized light can be any polarized light that can be recognized by naked eyes known to those skilled in the art, and is not limited here.

[0068] For example, Figure 3 As shown, after receiving the second control instruction to determine that the target person is not wearing sunglasses, the control unit (not shown in the figure) controls the first reflector 1 to exit the preset light path, and at the same time controls the light source 3 to emit the second polarized light, so that the second polarized light emitted by the light source 3 is reflected on the surface of the second reflector 2, and the second polarized light is reflected to other optical components of the head-up display and continues to be transmitted, and finally the second polarized light is transmitted to the eyes of the target person. Among them, the second reflector 2 has a high reflectivity for the second polarized light.

[0069] In some embodiments, “controlling the first reflector to exit from the preset light path” comprises the following steps:

[0070] The first reflector is controlled to rotate along a second direction at a preset angle so that the first reflector is withdrawn from the preset light path; wherein the second direction is opposite to the first direction.

[0071] For example, Figure 3 As shown, after receiving the second control instruction for determining that the target person is not wearing sunglasses, the control unit controls the first reflector 1 to withdraw from the preset light path, that is, to reset the first reflector 1, and the first reflector 1 is restored from the inclined state to the vertical state; specifically: by controlling the driving mechanism to rotate the preset angle along the second direction, the first reflector 1 is driven to rotate together, so that the first reflector 1 withdraws from the preset light path, and the second reflector 2 reflects the second polarized light.

[0072] It can be understood that when the first reflector 1 enters the preset light path, its rotation direction is the first direction, and when the first reflector 1 exits the preset light path, its rotation direction is the second direction, and the first direction and the second direction are opposite; for example, if the first direction is counterclockwise, the second direction is clockwise; if the first direction is clockwise, the second direction is counterclockwise; when entering the preset light path and exiting the preset light path, the rotation angle of the first reflector 1 is equal, and the rotation direction is opposite.

[0073] It should be noted that Figure 2 and Figure 3 The first reflector 1, the second reflector 2 and other optical components are shown as plane reflectors by way of example only, but this does not constitute a limitation on the control method of the head-up display provided by the embodiment of the present disclosure. In other embodiments, the first reflector 1, the second reflector 2 and other optical components may also be set as other types of reflectors known to those skilled in the art, such as curved reflectors, which are not limited here.

[0074] In some embodiments, the first polarized light is parallel polarized light (ie, P polarized light), and the control method further includes:

[0075] In response to a first control instruction that the target person wears sunglasses, the light source is controlled to increase the brightness to a first brightness.

[0076] In this embodiment, the first polarized light is P polarized light.

[0077] Since the reflectivity of the imaging part (e.g., windshield) to P-polarized light is much lower than that to S-polarized light, the imaging brightness is low, and the target person may not be able to see the displayed content clearly when wearing sunglasses; therefore, after receiving the first control instruction to determine that the target person is wearing sunglasses, the control unit increases the brightness of the light source to the first brightness to compensate for the viewing brightness when the target person is wearing sunglasses, thereby ensuring a clear picture display and improving the user experience. Exemplarily, the first brightness is a preset multiple of the reference brightness, such as 1.2 times.

[0078] For example, assuming that the first brightness is 12000 nit, the reflectivity of S-polarized light is 17%, the reflectivity of P-polarized light is 1%, the transmittance of the polarizer is 60%, and the light transmission conversion efficiency is 70% to 80%, the target person will see a brightness of 296 nit to 339 nit after wearing sunglasses, which meets the brightness that the human eye can see, and the user can clearly see the display content of the head-up display.

[0079] In some embodiments, the control method further comprises the following steps:

[0080] In response to a second control instruction indicating that the target person is not wearing sunglasses, the light source is controlled to reduce the brightness to a second brightness; wherein the second brightness is lower than the first brightness.

[0081] In this embodiment, the first polarized light is P polarized light, and the second polarized light is S polarized light; when receiving the first control instruction to determine that the target person is wearing sunglasses, the control unit controls the light source to emit P polarized light, and increases the brightness of the light source to the first brightness to compensate for the viewing brightness when the target person is wearing sunglasses; thereafter, when the target person takes off the sunglasses, the control unit receives the second control instruction to determine that the target person is not wearing sunglasses, and controls the light source to emit S polarized light. The imaging unit has a higher reflectivity for S polarized light, and the imaging brightness is higher. The target person can see the displayed content clearly, and the brightness of the light source can be reduced to the second brightness, which is beneficial to reducing energy consumption. Exemplarily, the second brightness is a preset multiple of the reference brightness, such as 1.0 times.

[0082] Based on the same inventive concept, an embodiment of the present disclosure also provides a control device for a head-up display. The control device is applied to a control unit in a head-up display, and is used to execute the steps of any of the above-mentioned control methods for a head-up display, and has corresponding beneficial effects. The similarities can be understood by referring to the above, and will not be repeated in the following text.

[0083] In some embodiments, Figure 6 FIG. 1 is a schematic diagram of a control device for a head-up display provided by an embodiment of the present disclosure. Figure 6The control device 600 includes: a control module 601, which is used to control the first reflector to enter a preset light path and control the light source to emit a first polarized light in response to a first control finger for the target person wearing sunglasses, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

[0084] In some embodiments, the control module is used to control the first reflector to enter a preset light path, including: controlling the reflector to rotate along a first direction by a preset angle to drive the first reflector to enter the preset light path.

[0085] In some embodiments, the control module is further used to: in response to a second control instruction that the target person is not wearing glasses, control the first reflector to withdraw from the preset light path and control the light source to emit the second polarized light.

[0086] In some embodiments, the control module is used to control the first reflector to exit from the preset light path, including: controlling the driving mechanism to rotate a preset angle in a second direction to drive the first reflector to exit from the preset light path; wherein the second direction is opposite to the first direction.

[0087] In some embodiments, the first polarized light is parallel polarized light; the control module is further used to: control the light source to increase the brightness to a first brightness in response to a first control instruction for a target person wearing sunglasses.

[0088] In some embodiments, the control module is further used to: in response to a second control instruction for a target person not wearing glasses, control the light source to reduce the brightness to a second brightness; wherein the second brightness is lower than the first brightness.

[0089] The control device can be implemented by software and / or hardware, and can be integrated on any processor or electronic device with computing capability. For contents not described in detail in the device embodiment of the present disclosure, reference can be made to the description in any method embodiment of the present disclosure.

[0090] Based on the above implementation, the embodiment of the present disclosure further provides a method for controlling a head-up display, which is executed by a vehicle host. Figure 4 As shown, the control method includes the following steps:

[0091] S400, determining that the target person is wearing sunglasses, transmitting a first control instruction to a control unit of the head-up display, so that the control unit controls the first reflector to enter a preset light path and controls the light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

[0092] The target person's image can be obtained by an image acquisition unit provided in the vehicle compartment, and the target person's image can be identified to obtain the target person's information, and then compared by feature learning to determine whether the target person is wearing sunglasses. If the target person's information meets the preset conditions, it is determined that the target person is wearing sunglasses; if the target person's information does not meet the preset conditions, it is determined that the target person is not wearing sunglasses. The image acquisition unit may include at least one of a camera and a camera, and may also include all devices or apparatuses with image acquisition functions known to those skilled in the art, which are not limited here.

[0093] Among them, the first control instruction is transmitted to the control unit of the head-up display device along the bus, and the control unit controls the first reflector to enter the preset light path and controls the light source to emit the first polarized light based on the first control instruction; the specific explanation can be found in the control method embodiment of the head-up display with the control unit as the execution body, which will not be repeated here.

[0094] In some embodiments, Figure 5 As shown, Figure 4 A detailed flow chart of "determining that the target person is wearing sunglasses" in the control method of the head-up display shown. Figure 5 , “Determining that the target person is wearing sunglasses” includes:

[0095] S510, acquiring a target person image and identifying target person information; the target person information includes at least one of a proportion of an eye area in a face area and an eye-covered area.

[0096] The target person image can be acquired through an image acquisition unit provided in the vehicle, and then compared through image acquisition recognition and feature learning to acquire the target person information. The image acquisition unit may include at least one of a camera and a camera, and may also include all devices or apparatuses with image acquisition functions known to those skilled in the art, which are not limited here.

[0097] There are obvious differences between the target person wearing sunglasses and not wearing sunglasses, and the target person information can be selected based on the difference characteristics. For example, when wearing sunglasses, the target person's eyes will be covered by the sunglasses lenses, and whether the target person is wearing sunglasses can be determined based on the eye cover area. For another example, the size difference between sunglasses lenses and human eyes is quite large. Before and after wearing sunglasses, the proportion of the eye area in the facial area changes greatly, making it easy to be identified. For another example, sunglasses lenses have a specific shape, and the target user's facial area can be distinguished by whether the sunglasses lenses are recognized.

[0098] It is understood that this embodiment only exemplarily shows that the target person information includes the proportion of the eye area in the face area and the eye covered area, but does not constitute a limitation on the control method of the head-up display provided by the embodiment of the present disclosure. In other embodiments, the target person information also includes other information known to those skilled in the art that can distinguish whether sunglasses are worn, which is not limited here.

[0099] S520: If at least one of the following conditions is met: the proportion of the eye area in the face area is greater than a preset proportion and the eye-covered area is greater than a preset area, it is determined that the target person is wearing sunglasses.

[0100] Wherein, by obtaining multiple facial image sample data, the statistical value of the sample data is used as the preset ratio, and the statistical value includes but is not limited to the average value and the maximum value. When the proportion of the eye area in the facial area is greater than the preset ratio, it is determined that the target person is wearing sunglasses; for example, the preset ratio is set to 20-25%.

[0101] Among them, the eye covered area is the area range of the eye area covered by sunglasses, and the preset area is smaller than or equal to the eye area; when the eye covered area is larger than the preset area, it is determined that the target person is wearing sunglasses.

[0102] Exemplarily, when at least one of the following conditions is met, it is determined that the target is wearing sunglasses: (1) the proportion of the eye area in the facial area is greater than a preset ratio, which is 22%; (2) the eye covered area is greater than a preset area, which is equal to the eye area.

[0103] In some embodiments, the target person information also includes line of sight height, and the control method further includes the following steps:

[0104] The preset angle is determined based on the sight line height and the correlation between the sight line height and the preset angle.

[0105] The preset angle is the rotation angle required for the first reflector to enter the preset light path; Figure 2 The first reflector 1 needs to rotate by an angle θ from a vertical state (not entering the preset light path) to an inclined state (entering the preset light path), and the angle θ is the preset angle. The preset angle is positively correlated with the sight height.

[0106] The sight height is the vertical distance between the eye position of the target person and the reference plane. The disclosed embodiment does not limit the setting of the reference plane. The plane where the seat is located can be used as the reference plane, and the sight height of the target person is the vertical distance from the eye position to the plane where the seat is located; the vehicle floor can also be used as the reference plane, and the sight height of the target person is the vertical distance from the eye position to the plane where the seat is located; or other planes known to those skilled in the art can be used as the reference plane, which is not limited here.

[0107] Due to the difference in height of the target persons, there are also differences in line of sight height. If the rotation angle of the first reflector entering the preset light path is fixed, the incident angle of the light emitted by the light source when reflected on the surface of the first reflector 1 is also fixed. Correspondingly, the imaging position of the first polarized light in the imaging part is also relatively fixed. Tall or short target persons may need to look down or up when viewing the image. Maintaining the state of looking down or up for a long time can easily cause neck fatigue or even disease to the target persons.

[0108] Among them, the imaging part is used to reflect the light transmitted along the preset optical path to the eye area of ​​the target person, and the target person can see the virtual image of the light source through the imaging part, that is, the display content of the head-up display; the imaging part may include a windshield or an imaging reflector fixedly installed in the vehicle, or include other imaging components known to technical personnel in this field, which are not limited here.

[0109] In this embodiment, the preset angle is positively correlated with the sight line height. The larger the sight line height, the larger the preset angle, the larger the rotation angle of the first reflector entering the preset light path, and the corresponding imaging position is higher; the smaller the sight line height, the smaller the preset angle, the smaller the rotation angle of the first reflector entering the preset light path, and the corresponding imaging position is lower; in this way, for target persons with different sight line heights, by controlling the rotation angle of the first reflector entering the preset light path, the height of the imaging position is matched with the sight line height, thereby avoiding the target person viewing the displayed content with a large-angle upward or downward perspective, thereby alleviating cervical fatigue.

[0110] It should be noted that the correlation between the preset angle and the line of sight height can be obtained through training and learning experiments. The correlation between the preset angle and the line of sight height is stored in a memory in advance. After the line of sight height of the target person is obtained, the correlation is obtained from the memory to determine the size of the preset angle. By transmitting a first control instruction to the control unit, the first reflector is controlled to rotate a preset angle in a first direction to enter the preset light path, and the P polarized light emitted by the light source is reflected to the imaging part, so that the imaging position matches the line of sight height of the target person.

[0111] In other embodiments, if the first reflector is controlled to translate a preset distance along a set direction so that the first reflector enters a preset light path, a correlation between the preset distance and the line of sight height can be established through experiments, and the line of sight height of the target person can be obtained to determine the preset distance.

[0112] It should be noted that in the method embodiment provided by the present disclosure, the vehicle host executes the following method steps: "identifying target person information", "determining whether the target person wears sunglasses", and "determining the angle that the first reflector needs to rotate to enter the preset light path", and the control unit of the head-up display executes the following method steps: "controlling the first reflector to enter or exit the preset light path", "controlling the type of light emitted by the light source", and "controlling the light source to increase or decrease the brightness", and the two cooperate to implement all method steps, but this does not constitute a limitation on the control method of the head-up display provided by the embodiment of the present disclosure. In other embodiments, the execution subjects of the above method steps can be flexibly allocated according to needs, and all method steps can also be implemented by only one of the two, which is not limited here.

[0113] On the basis of the above-mentioned implementation manner, an embodiment of the present disclosure also provides a control device for a head-up display, which is applied to a vehicle host and is used to execute the steps of any of the above-mentioned control methods for a head-up display, and has corresponding beneficial effects. The similarities can be understood by referring to the above and will not be repeated in the following text.

[0114] In some embodiments, the control device includes: an instruction module, used to determine that the target person is wearing sunglasses, and transmit a first control instruction to the control unit of the head-up display, so that the control unit controls the first reflector to enter a preset light path and controls the light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

[0115] In some embodiments, the instruction module is used to determine whether the target person is wearing sunglasses, including: obtaining an image of the target person and identifying the target person information; the target person information includes the proportion of the eye area in the facial area and at least one of the eye covered area; if the proportion of the eye area in the facial area is greater than a preset proportion and the eye covered area is greater than at least one of the preset areas, it is determined that the target person is wearing sunglasses.

[0116] In some embodiments, the target person information also includes line of sight height, and the instruction module is further used to: determine the preset angle based on the line of sight height and the correlation between the line of sight height and the preset angle; wherein the preset angle is the angle that the first reflector needs to rotate to enter the preset light path; and the preset angle is positively correlated with the line of sight height.

[0117] The control device can be implemented by software and / or hardware, and can be integrated on any processor or electronic device with computing capability. For contents not described in detail in the device embodiment of the present disclosure, reference can be made to the description in any method embodiment of the present disclosure.

[0118] Based on the above implementation, Figure 7FIG. 1 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. Figure 7 The electronic device 700 includes: a memory 701 and a processor 702; the memory 701 stores executable programs or instructions; the processor 702 runs the programs or instructions to implement the steps of any head-up display control method executed by the control unit, and / or to implement any head-up display control method executed by the vehicle host, which has corresponding beneficial effects. To avoid repeated description, it will not be repeated here.

[0119] The processor 702 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the computer to perform desired functions.

[0120] The memory 701 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), etc. Non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 702 may execute the program instructions to implement the method steps of the various embodiments of the present application described above and / or other desired functions.

[0121] In addition to the above-mentioned methods and apparatus, embodiments of the present application may also be a computer program product, which includes computer program instructions, and when the computer program instructions are executed by a processor, the processor executes the method steps of various embodiments of the present application.

[0122] The computer program product may be written in any combination of one or more programming languages ​​to write program code for performing the operations of the embodiments of the present invention, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0123] On the basis of the above-mentioned implementation modes, the embodiments of the present disclosure further provide a computer-readable storage medium on which a computer program or instruction is stored. When the computer program or instruction is executed by the processor, the processor executes the method steps of various embodiments of the present disclosure to implement any of the above-mentioned head-up display control methods, which has corresponding beneficial effects. To avoid repeated description, they will not be repeated here.

[0124] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0125] Computer readable storage media may take any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0126] Based on the above implementation, the present disclosure also provides a head-up display, such as Figure 2 As shown, the head-up display includes: a first reflector 1, a light source 3 and a control unit (not shown in the figure); the control unit is used to control the first reflector 1 to enter a preset optical path and control the power supply 3 to emit a first polarized light based on a first control instruction, so that the first polarized light is reflected by the first reflector 1 and transmitted along the preset optical path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses 4; it has corresponding beneficial effects, and in order to avoid repeated description, it will not be repeated here.

[0127] The control unit may be configured as a single chip microcomputer, and may include a central processing unit CPU with data processing capability, a random access memory RAM, a read-only memory ROM, a variety of I / O ports and interrupt systems, a timer / counter, etc., and also includes a display drive circuit, a pulse width modulation circuit, an analog multiplexer, an A / D converter, etc. When it is determined that the target person is wearing sunglasses, a first control instruction is generated and sent to the head-up display control unit; the control unit controls the first reflector 1 to enter the preset light path in response to the first control instruction, and controls the light source 3 to emit the first polarized light.

[0128] The first polarized light is polarized light that can pass through the sunglasses and is not filtered out by the sunglasses. Since the working principle of the current mainstream sunglasses is to filter S polarized light and transmit P polarized light, the first polarized light is P polarized light. In other embodiments, if the sunglasses filter P polarized light and transmit S polarized light, the first polarized light can also be set to S polarized light.

[0129] The light source 3 may be any type of light emitting device known to those skilled in the art, such as a picture generation unit (PGU), which is not limited here.

[0130] Among them, the first reflective plate 1 has a high reflectivity for the first polarized light, so that most of the first polarized light is reflected into the preset light path, thereby ensuring the integrity and clarity of the imaging, and the user can clearly see the displayed content.

[0131] In some embodiments, the head-up display further includes: a driving mechanism connected to the first reflector; and a control unit configured to control the driving mechanism to rotate a preset angle along a first direction based on a first control instruction to drive the first reflector to enter a preset light path.

[0132] For example, Figure 2 As shown, the control unit responds to the first control instruction by controlling the driving mechanism to rotate along the first direction by a preset angle θ, and at the same time drives the first reflector 1 to rotate by the preset angle θ, so that the first reflector 1 enters the preset light path.

[0133] In other embodiments, the driving mechanism may be controlled to translate a preset distance along a set direction so that the first reflector enters a preset light path.

[0134] In some embodiments, the preset angle θ is positively correlated with the sight height of the target person.

[0135] In some embodiments, Figure 3 As shown, the control unit is further used to control the first reflector 1 to withdraw from the preset light path and control the light source 3 to emit the second polarized light based on the second control instruction.

[0136] When receiving the second control instruction to determine that the target person is not wearing sunglasses, the control unit responds to the second control instruction, controls the first reflector 1 to withdraw from the preset light path, and controls the light source 3 to emit the second polarized light; the second polarized light is reflected on the surface of the second reflector 2, and the second polarized light is reflected to other optical components of the head-up display and continues to be transmitted, and finally the second polarized light is transmitted to the eyes of the target person. Among them, the second reflector 2 has a high reflectivity for the second polarized light.

[0137] In some embodiments, the control unit is further used to control the driving mechanism to rotate a preset angle in a second direction based on a second control instruction to drive the first reflector to withdraw from the preset light path; wherein the second direction is opposite to the first direction.

[0138] For example, Figure 3 As shown, the control unit responds to the second control instruction by controlling the driving mechanism to rotate along the second direction by a preset angle θ, and at the same time drives the first reflector 1 to rotate by the preset angle θ, so that the first reflector 1 exits the preset light path.

[0139] In other embodiments, the second reflector can also be moved by controlling the driving mechanism to translate a preset distance along a set direction so that the second reflector exits the preset light path; when entering and exiting the preset light path, the corresponding translation directions are opposite and the translation distances are equal.

[0140] In some embodiments, the first polarized light is parallel polarized light; the control unit is further configured to control the light source to increase brightness to the first brightness in response to the first control instruction.

[0141] In this embodiment, the first polarized light is P polarized light. Since the reflectivity of the imaging unit (e.g., windshield) to P polarized light is lower than that to S polarized light, the imaging brightness is low, and the target person may not be able to see the displayed content clearly when wearing sunglasses; therefore, after determining that the target person is wearing sunglasses, the brightness of the light source is increased to the first brightness to compensate for the viewing brightness when the target person is wearing sunglasses, thereby ensuring a clear picture display, which is conducive to improving the user experience.

[0142] In some embodiments, the control unit is further configured to control the light source to reduce brightness to a second brightness in response to a second control instruction; wherein the second brightness is lower than the first brightness.

[0143] In this embodiment, the first polarized light is P polarized light, and the second polarized light is S polarized light; when a first control instruction is received to determine that the target person is wearing sunglasses, the control unit controls the light source to emit P polarized light, and compensates for the viewing brightness when the target person is wearing sunglasses by increasing the brightness of the light source to the first brightness; thereafter, when a second control instruction is received to determine that the target person takes off his sunglasses, the control unit controls the light source to emit S polarized light. The imaging unit has a higher reflectivity of S polarized light and a higher imaging brightness. The target person can see the displayed content clearly, and the brightness of the light source can be reduced to the second brightness, which is beneficial to reducing energy consumption.

[0144] On the basis of the above-mentioned implementation, the embodiment of the present disclosure further provides a vehicle, including: any one of the above-mentioned head-up displays and any one of the above-mentioned head-up display control devices, which have corresponding beneficial effects and will not be described again here to avoid repeated description.

[0145] For example, Figure 8 As shown, a head-up display of a vehicle provided by an embodiment of the present disclosure is shown. Figure 8 The vehicle further includes: an image acquisition unit 200 and a vehicle host 300; the image acquisition unit 200 is used to acquire an image of a target person; and the vehicle host 300 is used to execute any of the above control methods.

[0146] The image acquisition unit 200 may include at least one of a camera and a still camera, and may also include all devices or apparatuses with image acquisition functions known to those skilled in the art, which are not limited here.

[0147] For example, Figure 8 As shown, the vehicle host 300 is in continuous communication with the image acquisition unit 200, and can obtain the target person image acquired by the image acquisition unit 200; the vehicle host 300 executes any of the above control methods, specifically: according to the target person image, determine whether the target person wears sunglasses, when it is determined that the target person wears sunglasses, generate a first control instruction, and send the first control instruction to the control unit 5 of the head-up display 100 through the transmission bus, and the control unit 5 controls the first reflector 1 to enter the preset light path and controls the light source 3 to emit the first polarized light; when the first polarized light is P polarized light, the control unit 5 increases the brightness of the light source 3. When it is detected that the user takes off the sunglasses, that is, it is determined that the target person does not wear sunglasses, generate a second control instruction, and send the second control instruction to the control unit 5 of the head-up display 100 through the transmission bus, and the control unit 5 controls the first reflector 1 to exit the preset light path and controls the light source 3 to emit the second polarized light; when the second polarized light is S polarized light, the control unit 5 reduces the brightness of the light source 3.

[0148] In other embodiments, the vehicle also includes all other vehicle-mounted equipment or devices known to those skilled in the art, such as lidar and vehicle-mounted navigation, etc., which are not limited here.

[0149] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article 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, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0150] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling a head-up display, characterized in that: The control method is applied to the control unit in the head-up display; the control method includes: In response to a first control instruction for a target person to wear sunglasses, the first reflector is controlled to enter a preset light path and the light source is controlled to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted through the sunglasses to the eyes of the target person.

2. The control method according to claim 1, characterized in that: The controlling the first reflector to enter the preset light path comprises: The first reflector is controlled to rotate along a first direction by a preset angle so that the first reflector enters the preset light path.

3. The control method according to claim 2, characterized in that: Also includes: In response to a second control instruction for the target person not wearing glasses, the first reflector is controlled to withdraw from the preset light path and the light source is controlled to emit the second polarized light.

4. The control method according to claim 3, characterized in that: The controlling the first reflector to withdraw from the preset light path comprises: The first reflector is controlled to rotate along a second direction at a preset angle so that the first reflector is withdrawn from the preset light path; wherein the second direction is opposite to the first direction.

5. The control method according to claim 4, characterized in that: The first polarized light is parallel polarized light; and the control method further includes: In response to a first control instruction for a target person to wear sunglasses, controlling the light source to increase brightness to a first brightness; In response to a second control instruction for the target person not wearing glasses, controlling the light source to reduce brightness to a second brightness; The second brightness is smaller than the first brightness.

6. A method for controlling a head-up display, characterized in that: The control method is executed by a vehicle host; the control method includes: It is determined that the target person is wearing sunglasses, and a first control instruction is transmitted to a control unit of a head-up display, so that the control unit controls the first reflector to enter a preset light path and controls the light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

7. The control method according to claim 6, characterized in that: The step of determining that the target person is wearing sunglasses comprises: Acquire a target person image and identify target person information; the target person information includes at least one of a proportion of an eye area in a face area and an eye-covered area; If at least one of the following conditions is met: the proportion of the eye area in the face area is greater than a preset proportion and the eye-covered area is greater than a preset area, it is determined that the target person is wearing sunglasses.

8. The control method according to claim 7, characterized in that: The target person information also includes line of sight height, and the control method also includes: The preset angle is determined based on the sight line height and the correlation between the sight line height and the preset angle; wherein the preset angle is the angle that the first reflector needs to rotate to enter the preset light path; and the preset angle is positively correlated with the sight line height.

9. A control device for a head-up display, characterized in that: The control device is applied to a control unit in the head-up display, and the control device includes: A control module is used to respond to a first control instruction for a target person to wear sunglasses, control a first reflector to enter a preset light path and control a light source to emit a first polarized light, so that the first polarized light is reflected by the first reflector and transmitted along the preset light path, and the first polarized light can be transmitted to the eyes of the target person through the sunglasses.

10. An electronic device, characterized in that: include: Memory and processor; The memory stores executable programs or instructions; The processor runs the program or instruction to implement the steps of the control method according to any one of claims 1 to 5, and / or to implement the steps of the control method according to any one of claims 6 to 8.

11. A computer readable medium having a computer program or instruction stored thereon, characterized in that: The computer program or instructions are executed by a processor to implement the steps of the control method according to any one of claims 1 to 5, and / or to implement the steps of the control method according to any one of claims 6 to 8.

12. A vehicle, characterized in that: include: A head-up display and a control device for a head-up display as claimed in claim 9.

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