CN116909079B - Vehicle projection module, vehicle and control method of vehicle projection module - Google Patents
Vehicle projection module, vehicle and control method of vehicle projection module Download PDFInfo
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- CN116909079B CN116909079B CN202311182321.3A CN202311182321A CN116909079B CN 116909079 B CN116909079 B CN 116909079B CN 202311182321 A CN202311182321 A CN 202311182321A CN 116909079 B CN116909079 B CN 116909079B
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
Abstract
The invention relates to a projection module and discloses a vehicle projection module, a vehicle and a control method of the vehicle projection module. The vehicle projection module comprises a projection module, a reflection module arranged on the light transmission direction of the projection module and a driving module used for adjusting the reflection angle of the reflection module, wherein the driving module is arranged to enable the reflection module to be switched between a first reflection angle and a second reflection angle so as to project patterns emitted by the projection module on different projection surfaces. The vehicle projection module can realize the switching of the projection pattern between different projection surfaces through one projection module, so that the occupied space of the projection module is reduced and the cost is reduced.
Description
Technical Field
The invention relates to a projection module, in particular to a vehicle projection module, a vehicle and a control method of the vehicle projection module.
Background
With the increasing demand of people for automobile configuration, an automobile is not just a walking tool, but one of entertainment devices for users to play when traveling at rest, for example, the users can watch films or entertainment videos by utilizing the projection function of automobile lamps when driving and playing. In addition, the projection function of the automobile lamp can be utilized to communicate with drivers or passers-by of adjacent vehicles, and the automobile lamp with the projection function is called a projection lamp.
The car light projection is divided into two kinds of functions of projection to the ground and projection to the wall, in prior art, if want to realize two kinds of functions of projection to the ground and projection to the wall simultaneously, then the vehicle need carry on multiple projection module, also can bring more cost and more space requirement from this.
Disclosure of Invention
One of the objectives of the present invention is to provide a vehicle projection module, which can switch the projection pattern between different projection surfaces by one projection module, thereby reducing the space occupied by the projection module and reducing the cost.
The second objective of the present invention is to provide a vehicle, in which the projection module of the vehicle can switch the projection pattern between different projection surfaces by one projection module, so as to reduce the space occupied by the projection module and reduce the cost.
The third objective of the present invention is to provide a control method for a vehicle projection module, which can realize fast switching of projection of different projection planes, reduce the space occupied by the projection module, and reduce the cost.
In order to achieve the above object, a first aspect of the present invention provides a vehicle projection module, which is mounted on a vehicle body support, and includes a projection module, a reflection module disposed in a light transmission direction of the projection module, and a driving module for adjusting a reflection angle of the reflection module, wherein the driving module is configured to enable the reflection module to switch between a first reflection angle and a second reflection angle so as to project a pattern emitted by the projection module on different projection surfaces.
Preferably, the body bracket is provided with a through hole,
the projection assembly is positioned on one side of the vehicle body support, the reflection assembly is positioned on the other side of the vehicle body support, when the reflection assembly rotates to a first reflection angle, the light emitted by the projection assembly is projected to one projection surface through the through hole, and when the reflection assembly rotates to a second reflection angle, the light emitted by the projection assembly is transmitted to the reflection assembly through the through hole and is reflected by the reflection assembly and then projected to the other projection surface; or alternatively
The projection assembly and the reflection assembly are positioned on the same side of the vehicle body support, and the driving assembly enables the reflection assembly to switch between a first reflection angle and a second reflection angle, and light emitted by the projection assembly passes through the through hole and is projected to different projection surfaces after being reflected by the reflection assembly.
Preferably, the driving assembly includes:
a driving mechanism; and
the driving connecting piece is connected between the driving mechanism and the reflecting component, the driving connecting piece comprises a first connecting portion, a second connecting portion and a goose neck portion connected between the first connecting portion and the second connecting portion, the first connecting portion is connected with a driving shaft of the driving mechanism, the second connecting portion is connected with the reflecting component, the driving mechanism drives the driving connecting piece to rotate, and the reflecting angle of the reflecting component is adjusted through rotation of the driving connecting piece.
Further preferably, the neck of the goose is an arc-shaped connecting part, and the arc radius of the arc-shaped connecting part coincides with the first connecting part; and/or
The goose neck is provided with a balancing weight, so that the center of mass of the whole body formed by the driving assembly and the reflecting assembly is positioned on the driving shaft of the driving mechanism.
Preferably, in the process that the driving mechanism drives the gooseneck part to rotate, the gooseneck part passes through the through hole so as to avoid the vehicle body bracket; and/or
The driving assembly is further arranged to enable the reflecting assembly to rotate to a third reflecting angle, and when the reflecting assembly is located at the third reflecting angle, the reflecting assembly is located at the through hole and is flush with the vehicle body support.
Preferably, the driving assembly comprises a driving mechanism and a ball joint connecting piece, a fixed support is connected between the driving mechanism and the reflecting assembly, the ball joint connecting piece penetrates through the fixed support to be connected between the driving mechanism and the reflecting assembly, the driving mechanism can rotate by driving the ball joint connecting piece to adjust the distance between the reflecting assembly and the fixed support, and the reflecting angle of the reflecting assembly can be adjusted by adjusting the distance between the reflecting assembly and the fixed support.
Further preferably, the driving mechanism and the ball joint connector are correspondingly provided with at least two, and the connecting line of the at least two ball joint connectors is parallel to one side edge of the reflecting component.
Preferably, the body bracket forms a light guide portion at the through hole, the light guide portion extending from the body bracket and being bent toward the projection assembly.
The second aspect of the present invention provides a control method of a vehicle projection module, which is applied to the vehicle projection module, and the control method of the vehicle projection module includes:
responding to a first control instruction, and enabling the driving assembly to drive the reflecting assembly to rotate to a first reflecting angle so as to project a pattern emitted by the projection assembly on a wall surface;
and responding to the second control instruction, and driving the driving component to drive the reflecting component to rotate to a second reflecting angle so as to project the pattern emitted by the projection component on the ground.
Preferably, the first control instruction includes a projection position parameter, and in response to receiving the first control instruction, the driving component drives the reflecting component to rotate to a first reflecting angle, so as to project a pattern emitted by the projection component on a wall surface includes:
Driving the reflecting component and/or the projecting component to project a pattern emitted by the projecting component at a position corresponding to the projection position parameter on the wall surface,
the projection position parameters are used for splicing patterns emitted by the projection assemblies of a plurality of vehicles on the wall surface into a combined pattern.
A third aspect of the present invention provides a vehicle comprising the above-described vehicle projection module.
According to the projection module provided by the invention, the driving assembly is arranged to enable the reflection assembly to be switched between the first reflection angle and the second reflection angle so as to project the patterns emitted by the projection assembly on different projection surfaces, so that the projection patterns can be switched between different projection surfaces through one projection module, the occupied space of the projection module is reduced, and the cost is reduced.
In some preferred embodiments of the present invention, the driving assembly includes a driving mechanism and a driving connecting member connected between the driving mechanism and the reflecting assembly, and the driving connecting member includes a first connecting portion, a second connecting portion and a neck portion connected between the first connecting portion and the second connecting portion.
In some preferred embodiments of the present invention, the driving assembly includes a driving mechanism and a ball joint, the ball joint is connected between the driving mechanism and the reflecting assembly through a fixing bracket, and the driving mechanism can rotate by driving the ball joint to adjust the distance between the reflecting assembly and the fixing bracket, and adjust the reflecting angle of the reflecting assembly by adjusting the distance between the reflecting assembly and the fixing bracket, so as to avoid cracks on the ball joint, ensure the normal rotation of the reflecting assembly, ensure the projection adjusting effect of the projection module, and prolong the service life of the projection module.
Drawings
FIG. 1 is one of the operational diagrams of a projection module according to one embodiment of the present invention;
FIG. 2 is a second diagram of a projection module according to one embodiment of the present invention;
FIG. 3 is one of the operational diagrams of the drive assembly in one embodiment of the present invention;
FIG. 4 is a second diagram of the operation of the drive assembly in one embodiment of the invention;
FIG. 5 is a third diagram of the operation of the drive assembly in one embodiment of the present invention;
FIG. 6 is a schematic view illustrating a structure of a projection module according to an embodiment of the present invention;
FIG. 7 is a schematic view of a drive assembly according to one embodiment of the present invention;
FIG. 8 is one of the operation diagrams of the projection module according to another embodiment of the present invention;
FIG. 9 is a second diagram of a projection module according to another embodiment of the present invention;
FIG. 10 is a third diagram of a projection module according to another embodiment of the present invention;
FIG. 11 is a diagram illustrating operation of a projection module according to another embodiment of the present invention;
FIG. 12 is a fifth diagram of a projection module according to another embodiment of the present invention;
FIG. 13 is a schematic view illustrating a structure of a projection module according to another embodiment of the present invention;
FIG. 14 is a schematic diagram illustrating an application of the projection module provided by the present invention;
FIG. 15 is a schematic flow chart of a projection module according to an embodiment of the present invention;
FIG. 16 is a schematic flow chart of a projection module according to a second embodiment of the present invention;
FIG. 17 is a schematic flow chart of a projection module according to a third embodiment of the present invention;
FIG. 18 is a schematic control diagram of a projection module according to an embodiment of the present invention;
fig. 19 is a schematic control diagram of a projection module according to another embodiment of the invention.
Description of the reference numerals
Detailed Description
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings, it being understood that the embodiments described herein are for purposes of illustration and explanation only, and the scope of the invention is not limited to the following embodiments.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and thus, features defining "first," "second," or the like, may explicitly or implicitly include one or more of such features.
In one basic embodiment of the present invention, there is provided a projection module mounted on a vehicle body bracket 6, including a projection module 7, a reflection module disposed in a light transmission direction of the projection module 7, and a driving module for driving the reflection module to adjust a reflection angle, the driving module being configured to be capable of switching the reflection module between a first reflection angle and a second reflection angle to project a pattern emitted from the projection module 7 on different projection surfaces.
It should be noted that, this projection module can install on the automobile body, and at this moment, projection module 7 can be connected with the support part on the automobile body, and drive assembly also can be connected with the support part on the automobile body, and drive assembly is connected with reflection subassembly to adjust reflection subassembly's rotation angle, and adjust reflection subassembly's reflection angle through adjusting reflection subassembly's rotation angle.
The projection assembly 7 may be any mechanism capable of projecting a pattern, which may be a number, text, an image, or a combination of at least two of the foregoing, and the projection assembly 7 projects either a dynamic pattern or a static pattern.
The first reflection angle and the second reflection angle can be determined according to the actual situation of the vehicle projection module. Further, the embodiments of the present invention may also implement any angle adjustment between the first reflection angle and the second reflection angle, so as to adapt to projection surfaces at different positions.
The different projection surfaces can be any two non-coincident surfaces, such as ground and slope, two slope surfaces with different inclination angles, ground and wall surfaces, and the like. In the following description of the present application, a floor surface and a wall surface are taken as two different projection surfaces for example.
When the projection module provided by the basic embodiment of the application works, the projection module can be connected with the control unit, and the control unit sends an instruction to the driving assembly so that the driving assembly adjusts the reflection angle of the reflection assembly, and the reflection angle is shown in fig. 15. Specifically, when the pattern emitted by the projection assembly 7 is required to be projected on the wall surface, the reflection angle of the reflection assembly is adjusted to a first reflection angle through the driving assembly; when the pattern emitted by the projection component 7 is required to be projected onto the ground, the reflection angle of the reflection component is adjusted to the second reflection angle by the driving component, the reflection angle of the reflection component is switched between the first reflection angle and the second reflection angle in the above manner, and the pattern emitted by the projection component 7 is projected on different projection surfaces by switching the reflection angles.
In some embodiments of the present application, the projection module may be imaged using an afocal or auto-focus projection system during use, such that the pattern projected on the target plane is clearly visible. In the use case of less demanding projection pictures, it is also possible to consider the use of a fixed focal length projection system to reduce the cost of the overall product.
In actual operation, the projection module may include a control unit, where the control unit is connected to the driving assembly to control the operation of the driving assembly, as shown in fig. 16 and 18. In this embodiment, the control unit, the driving assembly and the reflecting assembly may interact and control according to the timing chart shown in fig. 18:
the control unit determines to start the projection system according to the instruction information. The instruction information may be a user instruction or a vehicle system instruction. The user instructions or vehicle system instructions may include a projection surface to be projected.
The control unit generates a driving instruction according to the determined projection surface. The driving instruction is used for instructing the driving component to adjust the reflection angle of the reflection component. The drive instructions may also include a target reflection angle (e.g., a first reflection angle or a second reflection angle) to be adjusted.
The control unit sends a driving instruction to the driving assembly.
The driving component rotates the reflecting component to the target reflecting angle according to the received driving instruction.
The reflection assembly is driven to rotate to a target reflection angle, so that the pattern emitted by the projection assembly 7 is projected to a projection surface to be projected.
In some embodiments, the projection module may further include a ranging unit, where the ranging unit can be used to measure a distance between the projection module and the projection surface, and transmit the distance to the control unit, and the control unit adjusts the operation of the projection assembly 7 and the reflection assembly, so that the projected pattern is clearer. The ranging unit may be any unit capable of measuring distance, and as a specific embodiment of the present invention, the ranging unit is a laser ranging radar, and the working process of the ranging unit is shown in fig. 17 and 19.
In this embodiment, the laser ranging radar, the control unit and the projection assembly may interact and control in accordance with the timing diagram shown in fig. 19:
the laser range radar detects the distance between the projection surface to be projected and the projection assembly 7. The relative positional relationship between the laser range radar and the projection assembly 7 can be predetermined, so that the laser range radar can detect the distance between the projection surface to be projected and the laser range radar, and convert the distance into the distance between the projection surface to be projected and the projection assembly 7 according to the relative positional relationship. In embodiments of real-time conversion, the lidar may be multiplexed to ranging of other functions (ranging of vehicles and target objects in functions such as obstacle avoidance, autopilot, etc.). In some variations, the ranging of the laser ranging radar may be calibrated, and the projection assembly 7 is used as a ranging far point, so that the distance between the projection surface to be projected and the projection assembly 7 can be directly obtained through calibrating the laser ranging radar each time without real-time conversion.
The laser range radar feeds back the detected distance to the control unit.
The control unit generates a focus adjustment instruction according to the received distance signal.
The control unit inputs a focus adjustment instruction to the projection assembly 7.
The projection component 7 adjusts the projection focal length according to the focal length adjustment instruction.
In addition, the control of the reflective component by the control unit may still refer to the timing diagram shown in fig. 18. In this embodiment, the control unit is used to control the focal length control of the driving assembly and the projection assembly 7.
Table 1 shows the case parameters of a fixed focal length projection module, and it can be seen from the table that the projection image has better image quality even if the distance deviates from the rated working distance. For example, the projection module is fixed at a position 600mm away from the ground and 3000mm away from the wall, so that a clear picture can be projected on the ground and the wall without focusing. The focal depth and modulation transfer function (Modulation Transfer Function, MTF) function curves of the fixed focal length projection module can be confirmed, and the afocal projection system and the auto-focusing projection system can be replaced under a proper scene.
TABLE 1
The projection module provided in the above basic embodiment can switch the reflection assembly between the first reflection angle and the second reflection angle by setting the driving assembly to project the pattern emitted by the projection assembly 7 on different projection surfaces, and can switch the projection pattern between different projection surfaces by one projection module, thereby reducing the space occupied by the projection module and reducing the cost.
In one embodiment of the present invention, a through hole is formed in the vehicle body support 6, the projection assembly 7 is located at one side of the vehicle body support 6, the reflection assembly is located at the other side of the vehicle body support 6, when the driving assembly rotates the reflection assembly to a first reflection angle, the light emitted from the projection assembly 7 is projected onto a projection surface through the through hole, when the driving assembly rotates the reflection assembly to a second reflection angle, the light emitted from the projection assembly 7 is transmitted to the reflection assembly through the through hole and is reflected by the reflection assembly and then projected onto another projection surface.
In some embodiments, the projection assembly 7 may be disposed on the inside of the body support 6, and the corresponding reflection assembly may be disposed on the outside of the body support 6, with the inside and outside of the body support 6 being the inside and outside as would be conventionally understood by those skilled in the art, specifically, the area covered by the body support 6 being the inside of the body support 6, and the area outside the covered area of the body support 6 being the outside of the body support 6. When the light needs to be projected to the ground, the driving component enables the reflecting component to rotate to a second reflecting angle, and the light emitted by the projection component 7 is transmitted to the reflecting component through the through hole and is projected to the ground after being reflected by the reflecting component; when the projection is required to the wall surface, the driving component enables the reflecting component to rotate to a first reflecting angle, and the light emitted by the projection component 7 is directly projected to the wall surface through the through hole without passing through the reflecting component.
In this embodiment, the projection assembly 7 may emit light in a first direction. The first direction may be toward the outside of the body bracket 6. For example, the first direction may be a direction that is approximately horizontal (a horizontal direction is conventionally understood by those skilled in the art) and that is toward the outside of the vehicle body bracket 6. Since the projection component 7 emits light along the first direction, the projection component 7 is arranged on the inner side of the vehicle body bracket 6, and the reflection component is arranged on the outer side of the vehicle body bracket 6, it is difficult to enable the light emitted by the projection component 7 to be projected to the wall surface only through adjustment of the reflection component, therefore, in the embodiment, when the light is required to be projected to the wall surface, the reflection component is driven by the driving component to rotate to a first reflection angle, so that the reflection component avoids an emergent light path of the projection component 7, and the light emitted by the projection component 7 can be directly projected to the wall surface through the through hole without passing through the reflection component; when the projection is required to the ground, the driving assembly rotates the reflecting assembly to the second reflecting angle, so that the reflecting assembly is positioned on the emergent light path of the projection assembly 7, and the emergent light direction of the projection assembly 7 is reflected to the ground.
In another embodiment of the present invention, a through hole is formed in the vehicle body support 6, the projection assembly 7 and the reflection assembly are located on the same side of the vehicle body support 6, and when the reflection assembly is switched between the first reflection angle and the second reflection angle by the driving assembly, the light emitted from the projection assembly 7 passes through the through hole after being reflected by the reflection assembly and is projected to different projection surfaces.
In some embodiments, the projection assembly 7 and the reflection assembly may be disposed inside the body frame 6.
In this embodiment, the projection assembly 7 may emit light in the second direction. The second direction may be opposite to the gravitational direction. For example, the first direction may be approximately vertical (vertical is conventionally understood by those skilled in the art) and other directions away from the direction of gravity that can form an angle with the vertical. Since the projection assembly 7 emits light along the second direction, and the projection assembly 7 and the reflection assembly are both disposed at the inner side of the vehicle body bracket 6, the light emitted from the projection assembly 7 can be switched between the wall surface and the ground only by adjusting the reflection assembly, and therefore, in this embodiment, when the driving assembly switches the reflection assembly between the first reflection angle and the second reflection angle, the light emitted from the projection assembly 7 can pass through the through hole and be projected onto different projection surfaces after being reflected by the reflection assembly.
The projection module among the prior art generally adopts the combination of motor and gear, and this mode can accurate control projection direction and angle, but the vehicle often is in high-intensity vibration's environment, and under high-intensity vibration's environment, frequent and strong vibration easily leads to the tooth of meshing gear to take place fatigue fracture, influences projection module's direction regulatory function.
In one embodiment of the invention, the mirror assembly comprises a mirror support 4 and a mirror 5 arranged on the mirror support 4, the drive assembly being connected to the mirror support 4. The mounting manner of the mirror 5 and the mirror support 4 in fig. 13 is an embodiment of a reflection assembly. The reflector bracket 4 can protect the reflector 5, reduce the possibility of damage of the reflector 5 in the use process, and prolong the service life of the reflector 5.
In one embodiment of the present invention, as shown in fig. 1 to 7, the driving assembly includes a driving mechanism 2 and a driving connection member 1 connected between the driving mechanism 2 and the reflecting assembly, the driving connection member 1 includes a first connection portion 11, a second connection portion 12, and a gooseneck portion 13 connected between the first connection portion 11 and the second connection portion 12, the first connection portion 11 is connected with a driving shaft of the driving mechanism, and the second connection portion 12 is connected with the reflecting assembly to rotate the driving connection member 1 by the driving mechanism and adjust a reflecting angle of the reflecting assembly by rotation of the driving connection member 1.
The first connecting portion 11, the second connecting portion 12 and the gooseneck portion 13 may be integrally formed, or may be formed separately and then connected, preferably integrally formed.
When the reflection assembly comprises a reflector bracket 4 and a reflector 5, the driving connecting piece 1 can be connected to the reflector 5 or the reflector bracket 4, preferably to the reflector bracket 4, so that the driving connecting piece 1 is more convenient to install, and meanwhile, the connection stability of the reflection assembly and the driving connecting piece 1 can be improved.
Through above-mentioned setting, can make the holistic barycenter that drive assembly and reflection subassembly constitute be close to actuating mechanism's drive shaft as far as possible, and then reduce the possibility that appears the crack on the drive connecting piece in-process drive, guarantee reflection subassembly's normal rotation, can guarantee projection module's projection regulation effect, extension projection module's life.
The drive assembly provided by the above embodiment is more suitable for the case where the reflecting assembly is turned out, that is, the reflecting assembly is turned outside from the initial closed state. Because the structure of the driving connecting piece 1 is simpler, and the driving mechanism 2 and the reflection assembly to be driven are positioned on different sides of the vehicle body bracket 6, the driving structure is more suitable for the situation that the projection assembly 7 is positioned on one side of the vehicle body bracket and the reflection assembly is positioned on the other side of the vehicle body bracket 6, and the structure of the reflection assembly on the outer side of the vehicle body bracket 6 is simple, and the rotation support is stable. After the reflection assembly rotates upwards to a specific angle, the projection pattern emitted by the projection assembly 7 directly irradiates the wall surface (as shown in fig. 6); after the reflecting component rotates downwards to a specific angle, the projection pattern emitted by the projection component 7 is projected onto the ground after being reflected by the reflecting component (as shown in fig. 5). When the reflection assembly rotates upwards, the first connecting part 11 can be parallel to the vehicle body bracket 6, so that the space required by the driving mechanism 2 is reduced, and the miniaturization design is realized. In some variations of the present application, the driving assembly provided in the above embodiment may also be suitable for the case of inversion of the reflective assembly, and the inversion of the reflective assembly will be described below in conjunction with other driving assemblies, which will not be repeated herein.
As a specific embodiment of the invention, the rotation angle of the reflecting component ranges from 30 degrees to 70 degrees, and the rotation angles of different projection positions can be selected to be proper according to the position of the ground projection area. The light of the projection assembly 7 is projected onto the ground through the reflection assembly, thereby realizing the ground projection function. When the projection is switched to the wall surface projection, the reflection assembly continues to outwards overturn until the reflection assembly is no longer interfered with the light-emitting envelope (namely, the position of the reflection assembly is not illuminated by the light projected by the projection assembly 7), and the light projected by the projection module can directly illuminate the wall surface at the moment, so that the wall surface projection function is realized, as shown in fig. 1 and 2.
As a specific embodiment of the present invention, referring to fig. 7, the gooseneck portion 13 is an arc-shaped connecting portion, and the arc radius of the arc-shaped connecting portion coincides with the first connecting portion 11.
Note that the overlapping of the arc radius of the arc-shaped connection portion and the first connection portion 11 means that: the arc radius R of the arc-shaped connection portion coincides not only with the extending direction of the first connection portion 11 but also with the length of the first connection portion 11. The arc degree of the arc-shaped connecting portion and the length of the first connecting portion 11 can be adjusted according to practical conditions. For example, the length of the first connection portion 11 is determined by the distance between the rotation axis (i.e., the driving axis of the driving mechanism 2) and the connection point of the mirror, and the arc α is adjusted according to the angle α at which the reflection assembly needs to rotate.
In one embodiment of the invention, the drive connection 1 is provided with at least two. The transmission stability between the driving mechanism 2 and the reflecting component can be increased, and the shaking of the projection pattern can be reduced. In the embodiment shown in fig. 6, 2 drive connections 1 are provided. Further, the 2 driving connection members 1 may be disposed in parallel, and the distance between the 2 driving connection members 1 is greater than the width of the projection lens of the projection assembly 7, so as to avoid the light path of the projection assembly 7 during the rotation process.
When the connection surface between the reflective member and the driving connector 1 is a flat surface, the plurality of driving connectors 1 are completely uniform in size and shape. That is, in this case, the connection points of at least two driving links 1 and the reflection assembly are placed on the same line, and the line is parallel to the rotation axis.
As a specific embodiment of the invention, the gooseneck part 13 is provided with the balancing weight, and the balancing weight is arranged at a position that the integral mass center formed by the driving component and the reflecting component is positioned on the driving shaft of the driving mechanism 2, so that the rotation torque generated by self gravity can be completely eliminated, the cracks on the driving connecting piece in the driving process can be avoided, the normal rotation of the reflecting component can be ensured, the projection adjusting effect of the projection module can be ensured, and the service life of the projection module can be further prolonged. Meanwhile, the rotating position precision of the reflecting component can be guaranteed, and the device is particularly suitable for vehicle projection.
In the process that the driving mechanism 2 drives the goose neck 13 to rotate, the goose neck 13 penetrates through the through hole so as to avoid the car body support 6, normal use of the projection module can be ensured, and the influence of the car body support 6 on rotation of the reflection assembly is prevented.
In a specific embodiment of the present invention, the driving component is further configured to enable the reflection component to rotate to a third angle, when the reflection component is located at the third angle, the reflection component is located at the through hole and is flush with the vehicle body bracket 6, and when the vehicle is not in use, the reflection component can be attached to the vehicle body bracket 6, so as to ensure the aesthetic property of the whole vehicle. In addition, it is possible to avoid damage caused by collision, when the reflection assembly and the driving link 1 are located outside the body frame 6, when not in use. Meanwhile, when not in use, dust, stones and the like enter the projection module to damage the projection module.
According to the invention, the drive connection 1 can be made of any material, such as carbon steel, injection molded or other alloy, which combines strength and hardness. In one embodiment of the invention, the drive connection 1 is a carbon steel molding. Adopt the drive connecting piece 1 of above-mentioned shaping spare, can prevent that drive connecting piece 1 from producing deformation at vibration in-process, avoid reflecting component's rocking, at reflecting component in-process that rocks, the pattern that reflects through reflecting component also can produce and rock on the projection face, and the rocking of projection pattern can cause the glaring of the personnel of observing projection pattern. Therefore, avoiding the shaking of the reflecting component can reduce the possibility of glare and improve the driving safety.
In one embodiment of the invention, the driving assembly comprises a driving mechanism 2 and a ball joint 3, a fixed bracket 9 is connected between the driving mechanism 2 and the reflecting assembly, the ball joint 3 passes through the fixed bracket 9 to be connected between the driving mechanism 2 and the reflecting assembly, the driving mechanism 2 can adjust the distance between the reflecting assembly and the fixed bracket 9 by driving the rotation of the ball joint 3, and the reflecting angle of the reflecting assembly can be adjusted by adjusting the distance between the reflecting assembly and the fixed bracket 9. The fixing bracket 9 may be fixed to the body bracket 6 or may be integrally formed with the body bracket 6. The fixed bracket 9 is used to determine the rotational reference of the reflective assembly.
It should be noted that, during the installation process of the ball joint connecting piece 3, the ball joint connecting end (the head of the ball joint connecting piece 3) is connected with the reflection component, the end opposite to the ball joint connecting end (the tail of the ball joint connecting piece 3) is connected with the driving shaft of the driving mechanism 2 and can be driven by the driving shaft, the driving mechanism 2 can be fixed on the vehicle body, and the tail of the ball joint connecting piece 3 is driven to rotate, so that the ball joint connecting piece 3 moves relative to the fixed bracket 9 in the direction perpendicular to the fixed bracket 9, and the distance between the reflection component and the fixed bracket 9 is adjusted.
The driving assembly provided by the specific embodiment above, the joint of the ball joint connecting piece 3 is firm enough to bear the gravity of the reflecting assembly, and the ball joint connecting piece has no gear matching structure and no abrasion risk, and can avoid cracks on the ball joint connecting piece in the driving process, so that the rotation of the reflecting assembly is ensured, the projection adjusting effect of the projection module can be ensured, and the service life of the projection module is prolonged.
The driving assembly provided in the above embodiment is more suitable for the case that the reflecting assembly is turned inside out, that is, the reflecting assembly is turned inside out from the initial state. The angle of the driving structure is more flexible to adjust, and is more suitable for the condition that the projection assembly 7 and the reflection assembly are positioned on the same side of the vehicle body bracket, and after the reflection assembly rotates to a first specific angle, the projection pattern emitted by the projection assembly 7 is projected onto the ground after being reflected by the reflection assembly; after the reflecting component rotates to a second specific angle, the projection pattern emitted by the projection component 7 is projected onto the wall surface after being reflected by the reflecting component. As a specific implementation mode of the invention, the initial position of the reflecting mirror is positioned at a certain position with an included angle of 30-45 degrees with the wall surface, and the projection light is reflected by the reflecting mirror and projected on the wall surface; when the projection target needs to be switched, the reflecting mirror surface is rotated inwards to a position with an included angle of 45-80 degrees with the wall surface, and at the moment, the light reflected by the projection module is projected on the ground. As shown in fig. 8-12.
In one embodiment of the present invention, referring to fig. 13, the ball end of the ball joint 3 is connected to the reflection assembly, the other end passes through the fixing bracket 9 to be connected to the driving shaft of the driving mechanism 2, the ball joint 3 is screwed to the fixing bracket 9, and the driving shaft of the driving mechanism 2 is connected to the ball joint 3, so that the length of the ball joint 3 extending out of the fixing bracket 9 is adjusted by driving the ball joint 3 by the driving mechanism 2, and the reflection angle of the reflection assembly is adjusted by adjusting the length of the ball joint 3 extending out of the fixing bracket 9.
In particular, the reflector assembly may be mounted on the mounting bracket 9 by a plurality of ball joints 3, the mounting bracket 14 being stationary relative to the lamp assembly. The tail of the ball joint connecting piece 3 is coaxially connected with a driving shaft of the driving mechanism 2 (the tail of the ball joint connecting piece 3 and the driving shaft of the driving mechanism 2 are connected on a shaft), and the driving mechanism 2 drives the ball joint connecting piece 3 to rotate. The ball joint connecting piece 3 is in threaded fit with the fixed support 9, and the extension length of the ball joint connecting piece 3 relative to the vehicle body support 6 can be correspondingly changed along with the rotation of the ball joint connecting piece 3. The reflecting component realizes the self angle change by the relative height adjustment of the connecting point of the ball joint connecting piece 3 and the reflecting component.
When the reflection assembly comprises a reflector bracket 4 and a reflector 5, the ball joint connecting piece 3 can be connected to the reflector 5, and also can be connected to the reflector bracket 4, preferably to the reflector bracket 4, so that the installation of the ball joint connecting piece 3 is facilitated, and meanwhile, the connection stability degree of the reflection assembly and the ball joint connecting piece 3 can be improved.
In one embodiment of the present invention, at least two driving mechanisms 2 and ball connectors 3 are correspondingly arranged, and the connecting line of at least two ball connectors 3 is parallel to one side edge of the reflecting component.
According to the invention, the outer edge of the mirror 5 of the reflecting assembly is quadrangular, preferably rectangular. The reflector holder 4 of the reflector assembly is adapted to the shape of the reflector, and its outer edge is also quadrangular, preferably rectangular. The driving mechanism 2 and the ball joint connector 3 are correspondingly provided with at least two means: the driving mechanism 2 is provided with at least two, the ball joint connecting piece 3 is provided with at least two, and the driving mechanism 2 and the ball joint connecting piece 3 are correspondingly arranged. The connection line of at least two ball joint connectors 3 is parallel to one side edge of the reflecting component, which means that: the connecting line of at least two of the at least two ball-head connecting pieces 3 is parallel to one side edge of the reflecting component. That is, when the two ball connectors 3 are provided, the connecting line of the two ball connectors 3 is parallel to one side edge of the reflecting component; when the ball-head connecting pieces 3 are provided with three, the connecting line of the two ball-head connecting pieces 3 is parallel to one side surface of the reflecting component, the other ball-head connecting piece 3 is not on the connecting line, or the connecting line of the two ball-head connecting pieces 3 is parallel to one side surface of the reflecting component, and the other ball-head connecting piece 3 is on the connecting line. Preferably, when the ball connectors 3 are provided with three, the line of two ball connectors 3 is parallel to one side face of the reflection assembly, and the other ball connector 3 is not on this line. Can be adjusted in multiple directions.
As a specific embodiment of the present invention, three driving mechanisms 2 and ball connectors 3 are correspondingly arranged, and the connecting lines of the two ball connectors 3 are parallel to one side of the reflecting component, and the connecting lines of the two ball connectors 3 are parallel to the other side of the reflecting component. The above-mentioned setting can realize that the reflection subassembly diversified adjustment reflection angle also can simplify mounting structure simultaneously. The driving mechanism 2 and the ball joint connecting pieces 3 can be correspondingly arranged into four, five or more, when the driving mechanism 2 and the ball joint connecting pieces 3 are correspondingly arranged into four, the connecting lines of the two ball joint connecting pieces 3 are parallel to one side edge of the reflecting component, and the connecting lines of the other two ball joint connecting pieces 3 are parallel to the side edge opposite to the side edge. That is, when the outer edge of the reflecting member is rectangular, the two lines are parallel.
In one embodiment of the present invention, the body bracket forms a light guide 8 at the through hole, and the light guide 8 extends from the body bracket 6 and is bent toward the projection module 7. In actual use, the light guide 8 is arranged to be inclined from bottom to top towards the projection assembly 7. Preferably, the light guide portion 8 is disposed at the lower side (i.e. the side facing the gravity direction) of the through hole of the vehicle body bracket 6, so that when the projection module projects the pattern onto the ground, as much light as possible can be projected onto the ground, thereby ensuring the integrity of the pattern and improving the light utilization efficiency.
The driving mechanism 2 may be a stepper motor or other motor capable of rotating the reflective member, and in one embodiment of the present invention, the driving mechanism 2 is a stepper motor. The stepping motor has a self-locking function, namely, the rotor of the stepping motor is difficult to rotate by force. When the projection module works, the self-locking function of the stepping motor can prevent the driving shaft of the motor from rotating.
The projection module provided in the above embodiments is often static when applied as a wall projection, and remains relatively static with respect to the wall. The most important function of wall projection is as a mobile private cinema. The method provides visual enjoyment of a large screen and has certain convenience and rapidness. According to the general projection ratio 1.2 in the market: 1, the picture size of 100 inches can be projected on the wall surface only by keeping the distance from the head to the projection wall surface of about 3.2 m. If an ultra-short focal lens is adopted, the distance from the head to the wall surface can be further greatly reduced.
Under the condition that the size of the projected wall surface is enough, a plurality of car combination projections can be used for setting a projection picture area and a projection position on the wall surface through the mobile phone APP, and a huge picture is projected on the wall surface, as shown in fig. 14. The projection of the I car is in the area A, the projection of the II car is in the area B, the projection of the III car is in the area C, and the projection of the IV car is in the area D.
When the projection module provided in the specific embodiment is used as a ground projection application, the ground projection application scene is flexible, and the vehicle can be dynamic or static. However, in the ground projection application scene, the problem that the projection light is blocked by the surrounding barrier needs to be considered. The projection module should combine the vehicle-mounted circle radar to use, when detecting through the radar that vehicle periphery space is too little or projection light has the barrier on the route, the vehicle-mounted host computer can suitably reduce the display image or adjust projection area position, perhaps directly close projection function.
In a stationary state of the vehicle, the ground projection can be used for a welcome-and-send function or ground atmosphere projection, and the two ground projection patterns are closer to the vehicle body.
When applied to a dynamic vehicle, some interactive information can be displayed through projection patterns, such as: reversing prompt, ground profile, remote control driving warning, automatic driving warning, steering and lane changing prompt and the like. When the vehicle runs, after the ground projection function is started, the distance from the ground projection pattern to the vehicle body is adjusted according to the running speed of the vehicle, and the faster the vehicle speed is, the larger the rotation angle of the reflecting mirror is, and the farther the projection distance is. In addition, in order to make the projection path not blocked by other vehicles, the position of the ground projection pattern should be further adjusted according to the feedback signal of the vehicle-mounted range radar. When the peripheral distance is too close to accommodate the projected pattern, the projection function should be turned off directly. Table 2 the light pattern size versus vehicle speed relationship is referenced.
TABLE 2
In addition, the invention also provides a vehicle, which comprises the vehicle projection module provided by any one of the technical schemes. The vehicle has all the advantages of the projection module, and the details are not repeated here.
Furthermore, the present invention provides a control method of a vehicle projection module, which is applied to the vehicle projection module, and includes: responding to the first control instruction, and enabling the driving assembly to drive the reflecting assembly to rotate to a first reflecting angle so as to project the pattern emitted by the projection assembly 7 on the wall surface;
in response to receiving the second control instruction, the driving assembly drives the reflecting assembly to rotate to a second reflecting angle so as to project the pattern emitted by the projection assembly 7 on the ground.
The control method can realize the rapid switching of the projection of different projection planes, reduce the occupied space of the projection module and simultaneously reduce the cost. And has all the advantages of the vehicle projection module.
In one embodiment of the present invention, the first control command includes a projection position parameter, and in response to receiving the first control command, the driving component drives the reflecting component to rotate to a first reflecting angle, so as to project the pattern emitted by the projection component 7 on the wall surface includes: the reflection assembly is driven to project the pattern emitted by the projection assembly 7 at a position on the wall surface corresponding to the projection position parameters, wherein the projection position parameters are used for splicing the patterns emitted by the projection assemblies 7 of a plurality of vehicles on the wall surface into a combined pattern. That is, the projection assemblies 7 of a plurality of vehicles can splice the outgoing patterns on the wall surface into complete patterns according to respective projection position parameters.
As a specific implementation mode of the invention, owners of a plurality of vehicles operate mobile phones APP to actively communicate to form a projection group, each vehicle sends its own pose to each mobile phone APP, and a mobile phone APP/APP server obtains the pose, the position and the size of a wall surface to be projected (which can be obtained by sensing by a laser sensor or other sensors on the vehicle) of each vehicle of the projection group and a video to be played; dividing the video into a plurality of sub-videos according to the number of vehicles and the pose of the vehicles, and determining the projection position parameter of each sub-video; and transmitting the sub-videos and the projection position parameters to mobile phones APP or directly transmitting the sub-videos and the projection position parameters to a vehicle-mounted projection APP, wherein the vehicle-mounted projection APP enables respective projection components to project the corresponding sub-videos and drives the reflection components to conduct fine adjustment so as to correspond to the projection position parameters on the wall surface.
When the driving assembly comprises the driving mechanism 2 and the driving connecting piece 1 connected between the driving mechanism 2 and the reflecting assembly, the driving connecting piece 1 comprises a first connecting part 11, a second connecting part 12 and a goose neck part 13 connected between the first connecting part 11 and the second connecting part, and the projecting assembly directly emits light without passing through the reflecting assembly, so that the projecting assembly can be provided with a fine adjustment driving mechanism through a built-in algorithm or the projecting assembly, the light emitting direction of the projecting assembly is adjusted through the algorithm and/or the fine adjustment driving mechanism, and finally fine adjustment of the projecting position of the projecting pattern is realized.
When the drive assembly includes the drive mechanism 2 and the ball joint 3, fine adjustment of the projection position of the projection pattern can be achieved by fine adjustment of the axial extension of each ball joint 3.
In the two embodiments, fine adjustment of the projection pattern can be realized, and meanwhile, the influence of cracks in the driving assembly on normal use of the driving assembly and even the projection module is reduced, so that the service life of the projection module is prolonged.
As another specific embodiment of the present application, after the vehicle is parked, the user may operate the vehicle-mounted system to enter the combined projection mode, and the vehicle-mounted system broadcasts the vehicle to enter the combined projection mode through short-range communication and carries the vehicle pose/position information and the facing wall surface parameters. Meanwhile, the vehicle-mounted system receives vehicle pose/position information broadcast by other vehicles through short-range communication and faced wall surface parameters. The vehicle-mounted system automatically forms a projection group based on the matching of vehicle pose/position information and facing wall surface parameters. And after forming the projection group, determining the projection positions of the sub-videos and the sub-videos in the mode of the specific embodiment to project.
In a third embodiment of the present application, after determining the positions of the vehicles and the vehicles projected in combination, the projection module of the wall-projected vehicle projects onto the same wall surface to form a combined pattern, and the ground-projected vehicle projects onto the ground to illuminate. In addition, the projection light path of the wall-throwing vehicle and the vehicle owner can mutually avoid, further, the atmosphere illumination can be realized by identifying the position of the vehicle owner through a sensor (such as a laser radar or a camera), and orienting the illumination (such as only irradiating the position of the vehicle owner to form a small aperture surrounding the vehicle owner), in some variation examples, when the wall-throwing vehicle and the vehicle owner are determined, the position of the vehicle owner can be identified through the sensor (such as a laser radar or a camera), and according to the position of the vehicle owner, the vehicle with the projection light path of the wall-throwing is determined as the wall-throwing vehicle, and the vehicle corresponding to the position of the vehicle owner is used as the vehicle owner (or other vehicles are used as the vehicle owner).
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (8)
1. A vehicle projection module, which is mounted on a vehicle body bracket (6), and is characterized by comprising a projection assembly (7), a reflection assembly arranged in the light transmission direction of the projection assembly (7), and a driving assembly for adjusting the reflection angle of the reflection assembly, wherein the driving assembly is arranged to enable the reflection assembly to be switched between a first reflection angle and a second reflection angle so as to project a pattern emitted by the projection assembly (7) on different projection surfaces;
The car body bracket (6) is provided with a through hole,
the projection assembly (7) is located on one side of the car body support (6), the reflection assembly is located on the other side of the car body support (6), the driving assembly comprises a driving mechanism (2) and a driving connecting piece (1), the driving connecting piece (1) is connected between the driving mechanism (2) and the reflection assembly, the driving connecting piece (1) comprises a first connecting portion (11), a second connecting portion (12) and a gooseneck portion (13) connected between the first connecting portion (11) and the second connecting portion (12), the first connecting portion (11) is connected with a driving shaft of the driving mechanism (2), the second connecting portion (12) is connected with the reflection assembly, so that the driving connecting piece (1) is driven to rotate through the driving mechanism (2), the reflection angle of the reflection assembly is adjusted through the rotation of the driving connecting piece (1), the gooseneck portion (13) is driven to rotate in the driving mechanism (2), and the gooseneck portion (13) can penetrate through the car body support (6).
2. The vehicle projection module according to claim 1, wherein the projection module (7) is located at one side of the vehicle body support (6), the reflection module is located at the other side of the vehicle body support (6), when the reflection module is rotated to a first reflection angle by the driving module, light emitted by the projection module (7) is projected onto one projection surface through the through hole, and when the reflection module is rotated to a second reflection angle by the driving module, light emitted by the projection module (7) is transmitted to the reflection module through the through hole and is reflected by the reflection module and then projected onto the other projection surface; or alternatively
The projection assembly (7) and the reflection assembly are positioned on the same side of the vehicle body support (6), and the driving assembly enables the reflection assembly to switch between a first reflection angle and a second reflection angle, and light emitted by the projection assembly (7) passes through the through hole and is projected to different projection surfaces after being reflected by the reflection assembly.
3. The vehicle projection module according to claim 1, characterized in that the gooseneck portion (13) is an arc-shaped connecting portion, the arc radius of which coincides with the first connecting portion (11); and/or
The gooseneck part (13) is provided with a balancing weight, so that the center of mass of the whole body formed by the driving assembly and the reflecting assembly is positioned on the driving shaft of the driving mechanism (2).
4. The vehicle projection module of claim 1, wherein the drive assembly is further configured to rotate the reflective assembly to a third reflective angle, the reflective assembly being positioned at the through hole and flush with the body mount (6) when the reflective assembly is positioned at the third reflective angle.
5. The vehicle projection module according to claim 1, characterized in that the body bracket (6) forms a light guide (8) at the through hole, the light guide (8) extending from the body bracket (6) and bending towards the projection assembly (7).
6. A control method of a vehicle projection module according to any one of claims 1 to 5, comprising:
responding to the first control instruction, and enabling the driving assembly to drive the reflecting assembly to rotate to a first reflecting angle so as to project a pattern emitted by the projection assembly (7) on a wall surface;
and in response to receiving a second control instruction, the driving assembly drives the reflecting assembly to rotate to a second reflecting angle so as to project the pattern emitted by the projection assembly (7) on the ground.
7. The control method according to claim 6, wherein the first control instruction includes a projection position parameter, and the causing the driving assembly to drive the reflecting assembly to rotate to a first reflecting angle in response to receiving the first control instruction, so as to project the pattern emitted by the projection assembly (7) on the wall surface includes:
driving the reflecting component to project a pattern emitted by the projecting component (7) at a position on the wall surface corresponding to the projection position parameter,
the projection position parameters are used for splicing patterns emitted by the projection assemblies (7) of a plurality of vehicles on the wall surface into combined patterns.
8. A vehicle comprising the vehicle projection module of any one of claims 1 to 5.
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