阅读说明：本技术 一种车载抬头显示控制方法、装置、设备及存储介质 (Vehicle-mounted head-up display control method, device, equipment and storage medium ) 是由 庄舜峰 杨宁 赵红伟 李光耀 赵韬 刘盛开 王小旭 平抗抗 张欢 宋闯 于 2020-03-17 设计创作，主要内容包括：本发明涉及显示技术领域,具体涉及一种车载抬头显示控制方法,包括,获取车辆的当前位置；根据当前位置和导航路径确定第一目标位置；计算当前位置与第一目标位置之间的第一距离；判断第一距离是否大于第一预设距离；若否,将投影镜由第一投影位置调节至第二投影位置,判断第一距离是否小于第二预设距离,若是,计算车辆的当前位置与第二目标位置之间的第二距离；判断第二距离是否大于第一预设距离；若是,将投影镜由第二投影位置调节至第一投影位置；更新当前位置和第一目标位置,返回执行计算第一距离的步骤。本发明依据路况实现投影图像位置的自动调整,在实现较大的投影图像覆盖尺寸的同时,避免错过目标位置,提高用户体验。(The invention relates to the technical field of display, in particular to a vehicle-mounted head-up display control method, which comprises the steps of obtaining the current position of a vehicle; determining a first target position according to the current position and the navigation path; calculating a first distance between the current position and the first target position; judging whether the first distance is greater than a first preset distance; if not, adjusting the projection lens from the first projection position to a second projection position, judging whether the first distance is smaller than a second preset distance, and if so, calculating a second distance between the current position of the vehicle and a second target position; judging whether the second distance is greater than a first preset distance; if so, adjusting the projection lens from the second projection position to the first projection position; and updating the current position and the first target position, and returning to execute the step of calculating the first distance. According to the invention, the position of the projection image is automatically adjusted according to the road condition, the target position is prevented from being missed while the larger coverage size of the projection image is realized, and the user experience is improved.)

1. A vehicle-mounted head-up display control method is characterized in that the head-up display comprises a projection lens and an adjusting motor, and the method comprises the following steps:

acquiring the current position of the vehicle;

determining a first target position according to the current position and a vehicle navigation path;

calculating a first distance between the current location and the first target location;

judging whether the first distance is greater than a first preset distance;

if the first distance is not greater than the first preset distance, controlling the projection lens to be adjusted from a first projection position to a second projection position, and judging whether the first distance is smaller than a second preset distance, wherein the second preset distance is smaller than the first preset distance;

if the first distance is smaller than the second preset distance, calculating a second distance between the current position of the vehicle and a second target position, wherein the second target position is a position behind the first target position on the vehicle navigation path;

judging whether the second distance is greater than the first preset distance;

if the second distance is greater than the first preset distance, controlling the projection mirror to be adjusted from a second projection position to a first projection position;

and when the vehicle runs to the first target position, taking the first target position as the current position, taking the second target position as the first target position, and returning to the step of calculating the first distance between the current position and the first target position.

2. The vehicle-mounted heads-up display control method according to claim 1, characterized in that the method further comprises:

and if the first distance is greater than the first preset distance, controlling the projection mirror to keep at the first projection position.

3. The vehicle-mounted head-up display control method according to claim 1, wherein after the controlling the projection mirror to be adjusted from the first projection position to the second projection position, the method further comprises:

judging whether the current position of the vehicle reaches a first target position;

if the current position of the vehicle reaches a first target position, controlling the projection mirror to be adjusted from a second projection position to a first projection position;

and taking the first target position as the current position of the vehicle, and returning to the step of determining the first target position according to the current position and the vehicle navigation path.

4. The vehicle-mounted head-up display control method according to claim 1, 2 or 3, wherein the first target position is a position corresponding to a position on a navigation path where a travel action of the vehicle is to be performed.

5. The vehicle-mounted heads-up display control method according to claim 1, characterized in that the method further comprises:

the projection lens projects the target image to a first ground projection position at the first projection position, and the projection lens projects the target image to a second ground projection position at the second projection position.

6. The vehicle-mounted head-up display control method according to claim 1 or 5, wherein the controlling of the projection mirror to be adjusted from the first projection position to the second projection position comprises:

and controlling the adjusting motor to adjust the projection mirror to a target angle e, so that the projection mirror is switched from a first projection position to a second projection position.

7. The vehicle-mounted head-up display control method according to claim 6, wherein the target angle isWherein h is the vertical height between the human eye sight line and the horizontal ground, and s is the human eye sight lineThe horizontal distance between the line and the first ground projection position, and l is the horizontal distance between the human eye sight line and the second ground projection position.

8. The utility model provides a vehicle-mounted new line display controlling means which characterized in that, new line display includes projection mirror and accommodate motor, the device includes:

a first obtaining module for obtaining a current position of the vehicle,

the first determining module is used for determining a first target position according to the current position and the vehicle navigation path;

a first calculating module, configured to calculate a first distance between the current position and the first target position;

the first judging module is used for judging whether the first distance is greater than a first preset distance;

the first adjusting module is used for adjusting the projection mirror from a first projection position to a second projection position after the first judging module judges that the first distance is greater than a first preset distance;

the second judging module is used for judging whether the first distance is smaller than a second preset distance or not after the projection lens is adjusted from the first projection position to the second projection position, wherein the second preset distance is smaller than the first preset distance;

a second calculating module, configured to calculate a second distance between the current position of the vehicle and a second target position after the second determining module determines that the first distance is smaller than the second preset distance, where the second target position is a position on the vehicle navigation path after the first target position;

the third judging module is used for judging whether the second distance is greater than the first preset distance;

the second adjusting module is used for adjusting the projection mirror from the second projection position to the first projection position after the third judging module judges that the second distance is greater than the first preset distance;

and a first execution returning module, configured to, after the vehicle travels to the first target position, take the first target position as the current position, take the second target position as the first target position, and return to the step of calculating the first distance between the current position and the first target position.

9. An in-vehicle heads-up display control apparatus, characterized in that the apparatus comprises a processor and a memory, wherein the memory stores at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by the processor to implement the in-vehicle heads-up display control method according to claims 1-8.

10. A computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the in-vehicle heads-up display control method according to claims 1-8.

Technical Field

The invention relates to the technical field of electronic display, in particular to a vehicle-mounted head-up display control method, device, equipment and storage medium.

Background

Head Up Display (HUD) is gradually finding wide application in the automotive field. The head-up display projects important information (such as vehicle speed, navigation and the like) displayed by an instrument in the driving process of an automobile onto a front windshield glass, so that a driver can see the information in the instrument without lowering the head, a novice inexperienced in speed judgment can be helped to control the vehicle speed of the driver, the condition that the speed is violated in a speed-limiting road section due to overspeed is avoided, more importantly, the head-up display can enable the driver to instantly read under the condition that the large visual field is not transferred, the optimal observation state is always kept, and accidents caused by the fact that the driver cannot take effective measures in case of emergency in front when watching the instrument display or the sound display by lowering the head are avoided.

Although the existing head-up display system can project an image to be displayed onto the front windshield glass, the distance between a virtual image presented by the existing head-up display system and eyeballs of a driver is fixed, and automatic adjustment cannot be realized, so that the projection area of the image to be displayed on the ground cannot be adjusted based on road condition information, the target position is easily missed, traffic accident potential exists, and the ground projection coverage size is small after the image in the prior art is projected onto the ground, and the user experience is poor.

Disclosure of Invention

The technical problem to be solved by the invention is that the vehicle-mounted head-up display in the prior art cannot automatically adjust the projection position based on the road condition information, so that the ground projection size cannot be matched with the driving road condition, the target position is easily missed, the potential hazard of traffic accidents exists, and the user experience is poor.

In order to solve the technical problem, on one hand, the invention discloses a vehicle-mounted head-up display control method, specifically, the head-up display comprises a projection lens and an adjusting motor, and the method comprises the following steps:

acquiring the current position of the vehicle;

determining a first target position according to the current position and a vehicle navigation path;

calculating a first distance between the current location and the first target location;

judging whether the first distance is greater than a first preset distance;

if the first distance is not greater than the first preset distance, controlling the projection lens to be adjusted from a first projection position to a second projection position, and judging whether the first distance is smaller than a second preset distance, wherein the second preset distance is smaller than the first preset distance;

if the first distance is smaller than the second preset distance, calculating a second distance between the current position of the vehicle and a second target position, wherein the second target position is a position behind the first target position on the vehicle navigation path;

judging whether the second distance is greater than the first preset distance;

if the second distance is greater than the first preset distance, controlling the projection mirror to be adjusted from a second projection position to a first projection position;

and when the vehicle runs to the first target position, taking the first target position as the current position, taking the second target position as the first target position, and returning to the step of calculating the first distance between the current position and the first target position.

Further, the method further comprises:

and if the first distance is greater than the first preset distance, controlling the projection mirror to keep at the first projection position.

Further, in an implementable aspect, after the controlling the projection mirror to adjust from the first projection position to the second projection position, the method further includes:

judging whether the vehicle reaches a first target position;

if the vehicle reaches the first target position, controlling the projection mirror to be adjusted from the second projection position to the first projection position;

and taking the first target position as the current position of the vehicle, and returning to the step of determining the first target position according to the current position and the vehicle navigation path.

Further, the first target position is a position corresponding to a position where the vehicle is to perform a driving action on the navigation path.

Further, the method further comprises:

the projection lens projects the target image to a first ground projection position at the first projection position, and the projection lens projects the target image to a second ground projection position at the second projection position.

Further, the controlling the projection mirror to adjust from the first projection position to the second projection position includes:

and controlling the adjusting motor to adjust the projection mirror to a target angle e, so that the projection mirror is switched from a first projection position to a second projection position.

Further, the target angleH is the vertical height between the human eye sight line and the horizontal ground, s is the horizontal distance between the human eye sight line and the first ground projection position, and l is the horizontal distance between the human eye sight line and the second ground projection position.

On the other hand, the invention also provides a vehicle-mounted head-up display control device, wherein the head-up display comprises a projection lens and an adjusting motor, and the device comprises:

a first obtaining module for obtaining a current position of the vehicle,

the first determining module is used for determining a first target position according to the current position and the vehicle navigation path;

a first calculating module, configured to calculate a first distance between the current position and the first target position;

the first judging module is used for judging whether the first distance is greater than a first preset distance;

the first adjusting module is used for adjusting the projection mirror from a first projection position to a second projection position after the first judging module judges that the first distance is greater than a first preset distance;

the second judging module is used for judging whether the first distance is smaller than a second preset distance or not after the projection lens is adjusted from the first projection position to the second projection position, wherein the second preset distance is smaller than the first preset distance;

a second calculating module, configured to calculate a second distance between the current position of the vehicle and a second target position after the second determining module determines that the first distance is smaller than the second preset distance, where the second target position is a position on the vehicle navigation path after the first target position;

the third judging module is used for judging whether the second distance is greater than the first preset distance;

the second adjusting module is used for adjusting the projection mirror from the second projection position to the first projection position after the third judging module judges that the second distance is greater than the first preset distance;

and a first execution returning module, configured to, after the vehicle travels to the first target position, take the first target position as the current position, take the second target position as the first target position, and return to the step of calculating the first distance between the current position and the first target position.

In another aspect, the present invention further provides a vehicle-mounted head-up display control apparatus, where the apparatus includes a processor and a memory, where the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the vehicle-mounted head-up display control method.

In another aspect, the present invention further provides a computer-readable storage medium, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by a processor to implement the above-mentioned vehicle head-up display control method.

By adopting the technical scheme, the vehicle-mounted head-up display control method, the device, the equipment and the storage medium have the following beneficial effects: according to the invention, the projection image position is automatically adjusted according to the road condition, the ground projection size is matched with the road condition of the vehicle, the target position is prevented from being missed while the larger projection image coverage size is realized, the occurrence of safety accidents is reduced, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a vehicle head-up display provided by an embodiment of the present invention;

FIG. 2 is an optical schematic diagram of a vehicle head-up display provided by an embodiment of the invention;

FIG. 3 is a schematic diagram of a dead zone provided by an embodiment of the present invention;

fig. 4 is a schematic flowchart of a vehicle-mounted head-up display control method according to an embodiment of the present invention;

FIG. 5 is a graph of the target angle versus the ground projection position of the present invention;

FIG. 6 is a schematic flow chart illustrating another vehicle-mounted heads-up display control method according to an embodiment of the present invention;

fig. 7 is a block diagram of a configuration of a vehicle-mounted heads-up display control apparatus according to an embodiment of the present invention;

in the figure, 1-projector, 2-reflector, 3-projector, 4-adjustment motor, 5-HUD control unit, 6-front windshield.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In describing the present invention, it is to be understood that the terms "first," "second," "third," and "fourth," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Referring to fig. 1, a schematic structural diagram of a vehicle-mounted head-up display provided in an embodiment of the present invention is shown, in which a projector 1, a reflector 2, a projector 3, an adjustment motor 4, and a HUD (head up display) control unit 5 are integrated inside the vehicle-mounted head-up display, the HUD control unit 5 obtains information such as vehicle speed and navigation from a vehicle data bus, and outputs a target image at the projector 1, the target image output by the projector 1 is reflected by the reflector 2 and then reflected to the projector 3, and the projector 3 further projects the target image to a front windshield 6 of an automobile, so that human eyes can see a virtual target image located at a certain distance from human eyes on a road ahead, and thus obtain a ground projection image.

Specifically, the existing HUD has a small imaging size and a small coverage size of the ground projection image, and in order to increase the coverage size of the target image on the road ahead, a solution is provided in the embodiment.

Specific analysis was performed with specific reference to fig. 2:

it is to be understood that the covering dimensions mentioned in this specification are all represented by the dimensions in the longitudinal direction in the figures, for the sake of understanding.

Fig. 2 shows an optical principle schematic diagram OF a vehicle-mounted head-up display, specifically, after the HUD is loaded, an imaging included angle and an imaging size OF the HUD cannot be changed, so as to obtain a larger ground projection size, the imaging included angle and the imaging size can be reduced, in fig. 2, OF is a second projection light formed by the projection lens at a second projection position, < OFK is an included angle between the second projection light and the ground, and OG is a first projection light formed by the projection lens at a first projection position, and the second projection light shown in the figure is formed by integrally rotating the second projection light along the human eye position by a preset angle, and at the same time, an included angle between the first projection light and the ground is < OGK, and at this time, an included angle between the first projection light and the ground is < an included angle between the second projection light and the ground.

At this time, as can be seen from fig. 2, as the included angle between the imaging light and the ground becomes smaller, the ground projection size of the target image is elongated. In particular, as shown in figure 2,

the ground projection size corresponding to the projection lens when the projection lens projects the target image at the first projection position is obtained;

the ground projection size corresponding to the projection lens when the projection lens projects the target image at the second projection position is obtained;

the horizontal distance between the ground projection and the human eyes corresponding to the projection lens when the projection lens projects the target image at the first projection position;

the horizontal distance between the ground projection and the human eyes corresponding to the projection lens when the projection lens projects the target image at the second projection position;

and, as can be seen from the figures,that is, the horizontal distance between the ground projection and the human eye corresponding to the projection lens projecting the target image at the first projection position > the horizontal distance between the ground projection and the human eye corresponding to the projection lens projecting the target image at the second projection position, and it is found that the following relationship is satisfiedDue to the elongation of the ground projection size of the image, the ground projection position of the target image on the ground is farther away from the sight line of the human eyes. However, as is further understood from the figure, the blind area range is further increased while the ground projection size of the target image is enlarged. This may result in that, when the vehicle needs to pass through a certain target position after the ground projection position of the target image on the ground is farther from the eye line of sight, the ground projection image may not cover the target position as the vehicle approaches the target position, and a blind area is formed therein, and it is understood that the blind area mentioned in this specification refers to a certain target mark that should be displayed before the current ground projection that the HUD misses when the projection lens is in a certain projection position. For example, as shown in fig. 3, a certain target position is an intersection 1, and as the distance between the ground projection position of the target image on the ground and the line of sight of the human eyes is lengthened, when the vehicle approaches the intersection 1, the ground projection size at this time covers the intersection 2 but cannot cover the intersection 1, and at this time, the intersection 1 is easily missed.

Specifically, to avoid the problems that the target position is missed and the potential hazards of traffic accidents are increased due to the existence of the blind area, as shown in fig. 4, an implementation manner of the vehicle-mounted head-up display control method is provided in the embodiment of the present invention, and fig. 4 is a schematic flow diagram of the vehicle-mounted head-up display control method provided in the embodiment of the present invention. Specifically, the method comprises the following steps:

s101, acquiring the current position of a vehicle;

specifically, the vehicle-mounted head-up display may acquire current position information of the vehicle from the vehicle-mounted data bus through the HUD control unit. In addition, information such as vehicle speed and navigation can be acquired.

S103, determining a first target position according to the current position and the vehicle navigation path;

specifically, the first target position is a position corresponding to a position where the vehicle is to perform a driving action on the navigation path. The running action to be executed may be a navigation instruction action such as right or left turn or turn around displayed in a navigation path to be executed by the vehicle.

S105, calculating a first distance between the current position and the first target position;

s107, judging whether the first distance is larger than a first preset distance;

and if the first distance is greater than the first preset distance, controlling the projection lens to keep at the first projection position. If the first distance is not greater than the first preset distance, step S109 is performed.

Specifically, the first preset distance may be a distance set based on actual needs, and may be 50m, 100m, 150m, or the like, which is not limited herein. It can be understood that when the vehicle initially runs, the projection mirror is kept at the first projection position, the projection mirror is arranged at the first projection position, the coverage size of the target projection image at the corresponding ground projection position is large, and a larger ground projection size can be obtained, so that the user experience is improved.

S109, controlling the projection lens to be adjusted from the first projection position to the second projection position;

it can be understood that when the first distance is determined to be not greater than the first preset distance, it indicates that the vehicle will soon travel to the first target location, and if the projection lens is still disposed at the first projection location at this time, the first target location is likely to be in a blind area and cannot achieve HUD display, so that the driver may easily miss the first target location and walk wrong way, even a traffic accident may occur because the first target location is not seen, and therefore, when the first distance is determined to be not greater than the first preset distance, the projection lens needs to be adjusted from the first projection location to the second projection location to reduce the blind area range, achieve head-up display of the first target location, avoid missing the first target location, and reduce the occurrence rate of the traffic accident.

Specifically, controlling the projection mirror to be adjusted from the first projection position to the second projection position specifically includes:

and controlling the adjusting motor to adjust the projection lens to a target angle e, so that the projection lens is switched from the first projection position to the second projection position.

It will be appreciated that the target angle e needs to be adjusted to change the projection mirror to the ground projection positionThe angle of (c). Target angleH is the vertical height between the human eye sight line and the horizontal ground, s is the horizontal distance between the human eye sight line and the first ground projection position, and l is the horizontal distance between the human eye sight line and the second ground projection position.

Specifically, the relationship between the target angle, the vertical height between the line of sight of the human eyes and the horizontal ground is illustrated by fig. 5; in fig. 5, the ground projection is concentrated into one point, the second ground projection position is represented by a point F, the first ground projection position is represented by a point G, the line m represents that the projection lens is located at the first projection position, and the line n represents that the projection lens is located at the second projection position.

Specifically, as shown in fig. 5, fig. 5 shows a graph of the target angle versus the ground projection position, which is derived from Δ berg:

c＝a+<EBG；

<EBG＝<ABO；

<ABO+f＝90°；

c＝a+f f＝c-a；

the same applies to Δ CEG:

c＝b+g g＝c-b；

Δ BCD gives:

<ABD＝e+<BCD；

<BCD＝g+90°；

<ABD＝90°+f；

90°+f＝e+g+90°；

e＝f-g

therefore:

e＝c-a-(c-b)＝b-a

therefore, the temperature of the molten metal is controlled,

it can be understood from fig. 5 that OG is an imaging light ray when the projection lens is at the first projection position, OF is an imaging light ray when the projection lens is at the second projection position, where O is the eye position, G is the first ground projection position, F is the second ground projection position, and < FOG is the above-mentioned preset angle, and it can be seen from the figure that the above-mentioned preset angle is b-a, i.e. the target angle e is the above-mentioned preset angle. Namely, in the invention, the projection lens is adjusted to rotate the projection lens from the first projection position to the second projection position by the target angle e, so that the integral imaging light rays are rotated by a preset angle along the positions of human eyes, and the area of the ground projection image is increased.

It should be noted that, in the present embodiment, each letter without meaning given above only serves as a derivation of the intermediate transition, and does not need to correct its meaning.

S111, judging whether the first distance is smaller than a second preset distance;

and when the first distance is judged to be smaller than the second preset distance, the automobile is about to run to the first target position, and the step S113 is continuously executed. It is understood that the second preset distance may be set according to actual needs, and may be a specific value smaller than the first preset distance, such as 24m, 35m, 55m, and the like, and is not limited herein. In one embodiment, the first target position falls within the driver's sight line when the first distance is less than a second predetermined distance.

S113, calculating a second distance between the current position of the vehicle and a second target position;

it should be noted that the second target position is a position on the vehicle navigation path after the first target position; i.e. the position of the vehicle corresponding to the position on the navigation path at which the driving action is to be performed after the first target position. The running action to be executed may be a navigation instruction action such as right or left turn or turn around displayed in a navigation path to be executed by the vehicle.

S115, judging whether the second distance is larger than a first preset distance;

and if the second distance is not more than the first preset distance, keeping the projection lens at the second projection position. If the second distance is greater than the first preset distance, step S117 is performed.

S117, controlling the projection lens to be adjusted from the second projection position to the first projection position;

it can be understood that if the second distance is determined to be not greater than the first preset distance, it indicates that the current position of the vehicle is close to the second target position, and in order to avoid the blind area being too large and missing the second target position, the projection lens needs to be continuously maintained at the second projection position. If the second distance is larger than the first preset distance, the vehicle needs to travel for a period of time from the second target position, and at the moment, the projection lens can be adjusted to the first projection position by the second projection position to obtain a larger ground projection size in order to enable a driver to better and more conveniently know the road condition in front.

And S119, when the vehicle runs to the first target position, taking the first target position as the current position, taking the second target position as the first target position, and returning to the step of calculating the first distance between the current position and the first target position.

It is understood that when the vehicle travels to the first target position, the current position information of the vehicle and the first target position information are updated, in this case, the first target position becomes the current position of the vehicle, the second target position becomes the first target position, and the steps of steps S105-S119 are repeated after the current position of the vehicle and the first target position are updated.

Further, as shown in fig. 6, in another practical solution, after the step S109 of controlling the projection mirror to adjust from the first projection position to the second projection position, the method further includes:

s201, judging whether the current position of the vehicle reaches a first target position;

if the vehicle reaches the first target position, step S203 is performed.

S203, controlling the projection lens to be adjusted from the second projection position to the first projection position;

it can be understood that after the projection lens is adjusted from the first projection position to the second projection position, whether the current position of the vehicle reaches the first target position can be directly judged, and when the current position of the vehicle reaches the first target position, it indicates that the vehicle will not have the possibility of missing the target position, so that the projection position of the projection lens can be rotated from the second projection position to the first projection position again to obtain a larger ground projection size.

S205, taking the first target position as the current position of the vehicle, and returning to the step of determining the first target position according to the current position and the vehicle navigation path.

It is understood that when the vehicle travels to the first target position, the current position information of the vehicle and the first target position information are updated, in which case, the first target position becomes the current position of the vehicle, the second target position becomes the first target position, and the steps of steps S105-S205 are repeated after the current position of the vehicle and the first target position are updated.

Further, the method further comprises:

the projection lens projects the target image to a first ground projection position at a first projection position, and the projection lens projects the target image to a second ground projection position at a second projection position.

In another embodiment, the present invention further provides a vehicle-mounted head-up display control device, and fig. 7 shows that the vehicle-mounted head-up display control device provided by the present invention includes a projection lens and an adjustment motor, and the device includes:

a first obtaining module for obtaining a current position of the vehicle,

the first determining module is used for determining a first target position according to the current position and the vehicle navigation path;

the first calculation module is used for calculating a first distance between the current position and the first target position;

the first judging module is used for judging whether the first distance is greater than a first preset distance;

the first adjusting module is used for adjusting the projection lens from the first projection position to the second projection position after the first judging module judges that the first distance is greater than the first preset distance;

the second judgment module is used for judging whether the first distance is smaller than a second preset distance after the projection lens is adjusted from the first projection position to the second projection position, wherein the second preset distance is smaller than the first preset distance;

the second calculation module is used for calculating a second distance between the current position of the vehicle and a second target position after the second judgment module judges that the first distance is smaller than a second preset distance, wherein the second target position is a position on the vehicle navigation path behind the first target position;

the third judging module is used for judging whether the second distance is greater than the first preset distance;

the second adjusting module is used for adjusting the projection lens from the second projection position to the first projection position after the third judging module judges that the second distance is greater than the first preset distance;

and the first execution returning module is used for taking the first target position as the current position and the second target position as the first target position after the vehicle runs to the first target position, and returning to execute the step of calculating the first distance between the current position and the first target position.

In another implementation scheme, the present invention further provides a vehicle-mounted head-up display control device, where the device includes a processor and a memory, where the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the vehicle-mounted head-up display control method.

In another implementation, the present invention further provides a computer-readable storage medium, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by a processor to implement the above-mentioned vehicle head-up display control method.

It should be noted that, in the foregoing apparatus and terminal embodiment, each module and unit included in the apparatus is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the modules and units are only used for distinguishing one module from another, and are not used for limiting the protection scope of the invention.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of modules or units through some interfaces, and may be in an electrical, mechanical or other form.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.