Vehicle-mounted projection system and vehicle

Abstract

The embodiment of the utility model relates to the technical field of vehicles, and discloses a vehicle-mounted projection system and a vehicle. The vehicle-mounted projection system provided by the utility model comprises a first projection module used for projecting first preset information; the second projection module is used for projecting second preset information; the power output end of the driving mechanism is connected with the first projection module and the second projection module, and the driving mechanism is used for driving the first projection module and the second projection module to be switched between a first projection state and a second projection state; in the first projection state, the first projection module projects towards a windshield of the vehicle, and the second projection module projects towards a side window of the vehicle; and in the second projection state, the first projection module projects towards the side window of the vehicle, and the second projection module projects towards the windshield of the vehicle. According to the vehicle-mounted projection system, the windshield and the side window have at least two display effects, the display effects of the vehicle-mounted projection system are diversified, and the use requirements of different audiences can be met.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle technology, and in particular, to a vehicle-mounted projection system and a vehicle. Background Art

[0002] With the gradual promotion of in-vehicle displays in vehicle smart cockpits, projection has gradually become the mainstream in-vehicle display solution.

[0003] In the related art, some vehicle-mounted projection systems include multiple projection modules, and the multiple projection modules project toward different vehicle windows respectively. However, since the projection function of each projection module is relatively fixed, the display effect of each vehicle window is relatively single, which cannot meet the needs of different audiences. Utility Model Content

[0004] In view of this, the embodiments of the present application provide a vehicle-mounted projection system and a vehicle, which can solve the problem in the prior art that the projection mode of the vehicle-mounted projection system is fixed, the display effect of each window is single, and the needs of different audiences cannot be met.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a vehicle-mounted projection system, including:

[0007] A first projection module, used for projecting first preset information;

[0008] A second projection module, used for projecting second preset information;

[0009] A driving mechanism, wherein the power output end of the driving mechanism is respectively connected to the first projection module and the second projection module, and is used to drive the two to switch between a first projection state and a second projection state; wherein, in the first projection state, the first projection module projects toward the windshield of the vehicle, and the second projection module projects toward the side windows of the vehicle; and in the second projection state, the first projection module projects toward the side windows of the vehicle, and the second projection module projects toward the windshield of the vehicle.

[0010] The vehicle-mounted projection system provided in the embodiment of the present application mainly includes a first projection module, a second projection module and a driving mechanism, wherein the first projection module and the second projection module are used to project the first preset information and the second preset information respectively, and can produce different display effects when projecting toward the vehicle window. In addition, since in the vehicle-mounted projection system of the present embodiment, the first projection module and the second projection module can both be driven by the driving mechanism to project toward the windshield or side window of the vehicle, in the vehicle-mounted projection system of the present embodiment, the windshield and the side window can both display the first preset information and the second preset information, so that the windshield and the side window have at least two display effects, the display effect of the vehicle-mounted projection system of the embodiment of the present application is diverse, and can meet the usage needs of different audiences.

[0011] In a possible implementation of the present application, the second projection modules are arranged in pairs, and each pair of second projection modules is arranged on both sides of the first projection module.

[0012] In a possible implementation of the present application, the second projection module is used to perform mirroring processing on the first preset information and obtain second preset information.

[0013] In a possible implementation of the present application, the driving mechanism is a rotation source, and a power output end of the rotation source can rotate around a preset axis, and an angle is formed between the preset axis and the horizontal direction.

[0014] In a possible implementation of the present application, the vehicle-mounted projection system further includes a heat dissipation module, the first projection module and the second projection module are arranged around the heat dissipation module, and the heat dissipation module is used to cool the first projection module and the second projection module.

[0015] In a possible implementation of the present application, the heat dissipation module includes:

[0016] A heat sink, the heat sink abuts against the first projection module and the second projection module;

[0017] The air cooling mechanism is connected to one side of the heat sink and can blow air toward the heat sink.

[0018] In a possible implementation of the present application, the vehicle-mounted projection system further includes: a first control device, which is in communication connection with the driving mechanism and is used to control the driving mechanism to drive the first projection module and the second projection module to switch between the first projection state and the second projection state;

[0019] The second control device is communicatively connected with the first projection module and the second projection module, and is used to control the first projection module to project the first preset information and the second projection module to project the second preset information.

[0020] In a possible implementation of the present application, the vehicle-mounted projection system further includes a connecting structure, the connecting structure is used to connect to the top wall of the vehicle, one side surface of the first control device is connected to the connecting structure, and a second side surface of the first control device is connected to the driving mechanism.

[0021] In a possible implementation of the present application, the vehicle-mounted projection system further includes a protective cover, which is disposed outside the first projection module and the second projection module.

[0022] In a second aspect, an embodiment of the present application provides a vehicle, including:

[0023] Vehicle body;

[0024] The vehicle-mounted projection system according to the first aspect of the present invention is arranged in a vehicle body and is used for projecting toward a vehicle window.

[0025] The vehicle of the second aspect of the utility model includes or uses the vehicle-mounted projection system of the first aspect of the utility model, and thus has its beneficial effects, that is, in the vehicle of the embodiment of the utility model, the first projection module and the second projection module can both be driven by the driving mechanism to project toward the windshield or side windows of the vehicle, and the vehicle-mounted projection system of this embodiment has various display effects on the windows of the vehicle, which can meet the usage needs of different audiences. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a vehicle-mounted projection system provided in an embodiment of the present application, wherein the dotted line portion in the figure is a blocked structure;

[0027] Figure 2 An exploded diagram of a vehicle-mounted projection system provided in an embodiment of the present application, wherein the dotted line portion in the diagram is a blocked structure;

[0028] Figure 3 A schematic diagram of a vehicle-mounted projection system in use provided by an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a vehicle-mounted projection system in a first projection state provided by an embodiment of the present application;

[0030] Figure 5 A schematic diagram of a vehicle-mounted projection system in a second projection state provided by an embodiment of the present application.

[0031] Reference numerals:

[0032] 1. In-vehicle projection system; 101. driving mechanism; 102. first projection module; 103. second projection module; 104. heat dissipation module; 1041. heat sink; 1042. air cooling mechanism; 105. first control device; 106. second control device; 107. connection structure; 108. protective cover;

[0033] 2. Vehicle; 201. Windshield; 202. Side window. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0035] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0036] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0037] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0038] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0039] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0040] As the application of in-vehicle displays in car smart cockpits is gradually promoted, the display methods are also gradually enriched, and projection, screen, etc. have become the mainstream in-vehicle display solutions. Among them, screens are relatively widely used in cars, but due to their fixed structure, they can only be used as screens for specific functions, that is, the instrument screen is only used as an instrument display, the central control screen is used as a control screen, and other screens are used for related entertainment interactions. However, due to its portability and easy installation, projection can carry more in-vehicle display functions.

[0041] The present application embodiment provides a vehicle-mounted projection system 1, such as Figure 1 and Figure 2 As shown, it includes a driving mechanism 101, a first projection module 102 and a second projection module 103. The first projection module 102 is used to project the first preset information. The second projection module 103 is used to project the second preset information. The power output end of the driving mechanism 101 is connected to the first projection module 102 and the second projection module 103 respectively, and is used to drive the two to switch between the first projection state and the second projection state. In the first projection state, the first projection module 102 projects toward the windshield 201 of the vehicle 2, and the second projection module 103 projects toward the side window 202 of the vehicle 2. In the second projection state, the first projection module 102 projects toward the side window 202 of the vehicle 2, and the second projection module 103 projects toward the windshield 201 of the vehicle 2.

[0042] The vehicle-mounted projection system 1 provided in the embodiment of the present application mainly includes a first projection module 102, a second projection module 103 and a driving mechanism 101, wherein the first projection module 102 and the second projection module 103 are respectively used to project the first preset information and the second preset information, and can produce different display effects when projecting toward the vehicle window. In addition, since in the vehicle-mounted projection system 1 of the present embodiment, the first projection module 102 and the second projection module 103 can both be driven by the driving mechanism 101 to project toward the windshield 201 or the side window 202 of the vehicle 2, in the vehicle-mounted projection system 1 of the present embodiment, the windshield 201 and the side window 202 both have at least two display effects, and the display effects of the vehicle-mounted projection system 1 in the embodiment of the present application are diverse, and can meet the usage needs of different audiences.

[0043] The projection module may include a projection optical machine and a lens. It should be noted that in the embodiments of the present application, the type of the projection optical machine is not limited. For example, in some embodiments of the present application, the projection optical machine may use DLP (Digital Light Processing) digital light processing technology, LCOS (Liquid Crystal on Silicon) silicon liquid crystal technology, LCD (Liquid Crystal Display) liquid crystal display technology or other technical paths.

[0044] The first preset information may be selected as projection information that has not been mirror-flipped, so that users inside the vehicle 2 can easily view the information projected by the first projection module 102 to achieve an internal projection function.

[0045] The second preset information may be selected as projection information that has been mirror-flipped, which can facilitate people outside the vehicle 2 to view the information projected by the second projection module 103, so as to realize the external projection function.

[0046] Furthermore, in some embodiments of the present application, the first projection module 102 is used to directly project first projection information, and the second projection module 103 is used to mirror the first preset information and obtain the second preset information.

[0047] Furthermore, in some embodiments of the present application, the second projection modules 103 are arranged in pairs, and each pair of second projection modules 103 is arranged on both sides of the first projection module 102 .

[0048] By such configuration, the vehicle-mounted projection system 1 of the embodiment of the present application can realize projection functions in at least three directions simultaneously. It should be noted that in the embodiment of the present application, the number of the second projection modules 103 is not limited. For example, Figure 3 As shown, for some vehicle-mounted projection systems 1, the second projection modules 103 include a pair and are disposed on both sides of the first projection module 102. The two second projection modules 103 can project toward the left side window 202 of the front driver and the right side window 202 of the front passenger of the vehicle 2 respectively.

[0049] As a convertible implementation, the second projection module 103 includes a pair and is disposed on both sides of the first projection module 102 for projecting toward the left and right windows of the rear row of the vehicle 2 respectively.

[0050] In addition, in the embodiment of the present application, the connection mode between the driving mechanism 101 and the first projection module 102 and the second projection module 103 is not limited. Optionally, the power output end of the driving mechanism 101 is simultaneously connected to the first projection module 102 and the second projection module 103. As a convertible implementation, there are multiple driving mechanisms 101, each of which is connected to a projection module.

[0051] As another convertible embodiment, the second projection module 103 includes two pairs, one pair of second projection modules 103 is used to project toward the left side window 202 of the front driver and the right side window 202 of the front passenger of the vehicle 2, and the other pair is used to project toward the left and right windows of the rear row of the vehicle 2.

[0052] By setting it up like this, Figure 4As shown, when the vehicle-mounted projection system 1 is in the first projection state, the first projection module 102 projects toward the windshield 201 of the vehicle 2, and the windshield 201 can display information to the internal personnel of the vehicle 2, thereby realizing the HUD (Head-Up Display) function. The HUD technology originated from the military field at the earliest and was later widely used in the civilian automobile industry. Its core function is to project key driving information such as vehicle speed, navigation, tire pressure, and speed in the form of images onto the windshield 201 in front of the driver, so that the driver can obtain important information without lowering his head, thereby improving driving safety and convenience.

[0053] The second projection module 103 can project toward the side window 202 of the vehicle 2, and the windshield 201 can display vehicle information to people outside the vehicle 2. The vehicle information can be selected to include braking information, turning information, etc., which can facilitate people outside the vehicle 2 to understand the driving status of the vehicle 2, so as to improve the safety of the vehicle 2 during driving.

[0054] When the vehicle-mounted projection system 1 is in the second projection state, such as Figure 5 As shown, one of the second projection modules 103 can project toward the windshield 201 of the vehicle 2 , and the windshield 201 can display vehicle information to people outside the vehicle 2 .

[0055] Another second projection module 103 can project toward the rear window of the vehicle 2, so that the rear window of the vehicle 2 can realize the external display function, so that the rear vehicle can obtain the braking, turning and other information of the vehicle in time, so as to improve the safety of the vehicle 2 during driving.

[0056] The first projection module 102 can project toward a side window 202 on one side of the vehicle 2, and the side window 202 can display information to the internal personnel of the vehicle 2. For example, video materials such as movies or TV series can be played on the side window 202 on the co-pilot side, thereby providing more entertainment activities for the co-pilot passenger.

[0057] By such arrangement, the windshield 201 and the side windows 202 of the vehicle 2 can both display information internally and externally.

[0058] In addition, it should be noted that in the embodiment of the present application, the first projection module 102 directly projects the information during the projection process to realize the internal display function. During the projection process, in order to facilitate the identification of information by personnel outside the vehicle 2, the second projection module 103 needs to mirror the information when projecting outward to realize the external display function. The processing of the projection information is preferably but not limited to being realized by AR-Creator software.

[0059] As a convertible implementation, the second projection function includes an internal projection and external display function, which refers to a technology that projects images of internal devices onto external media for display. This technology has a wide range of applications in many fields, especially in the automotive industry, which has attracted widespread attention.

[0060] Furthermore, in some embodiments of the present application, the driving mechanism 101 is a rotation source, and the power output end of the rotation source can rotate around a preset axis, and an angle is formed between the preset axis and the horizontal direction. For example, when the driving mechanism 101 drives the first projection module 102 to rotate toward the left window 202, the left window 202 can realize the internal display function, and the windshield 201 can realize the external display function.

[0061] When the driving mechanism 101 drives the first projection module 102 to rotate toward the right window 202 , the right window 202 can realize the internal display function, and the windshield 201 can realize the external display function.

[0062] In addition, due to the differences in sizes of different car models, there are certain differences in the distances between the windshield 201 and the side windows 202. The vehicle-mounted projection system 1 of the embodiment of the present application can also drive the first projection module 102 and the second projection module 103 to rotate through a rotation source, thereby adjusting the projection direction of the first projection module 102 and the second projection module 103, so that the first projection module 102 and the second projection module 103 can accurately project toward the corresponding windows.

[0063] The rotation source may be a device capable of outputting rotation, such as a motor, an engine, a hydraulic motor, or a combination of one of them and a reducer, etc. It should be noted that in the embodiments of the present application, the specific extension direction of the preset axis is not limited. For example, in some embodiments of the embodiments of the present application, the preset axis extends in the vertical direction.

[0064] Furthermore, in some embodiments of the present application, the vehicle-mounted projection system 1 also includes a heat dissipation module 104, and the first projection module 102 and the second projection module 103 are arranged around the heat dissipation module 104. The heat dissipation module 104 is used to cool the first projection module 102 and the second projection module 103 to avoid overheating of the first projection module 102 and the second projection module 103, which helps to extend the service life of the vehicle-mounted projection system 1.

[0065] Further, in some embodiments of the present application, the heat dissipation module 104 includes a heat sink 1041 and an air cooling mechanism 1042. The heat sink 1041 abuts against the first projection module 102 and the second projection module 103. The air cooling mechanism 1042 is connected to one side of the heat sink 1041 and can blow air toward the heat sink 1041.

[0066] By such arrangement, the heat on the projection module can be conducted to the heat sink 1041 , and the air cooling mechanism 1042 can blow air toward the heat sink 1041 , so as to cool down the first projection module 102 and the second projection module 103 at the same time.

[0067] Preferably, the heat sink 1041 includes a multi-layer fin structure, and the multi-layer fin structure is stacked to help improve ventilation and heat dissipation effects.

[0068] The air cooling mechanism 1042 is preferably but not limited to a fan.

[0069] As a convertible implementation, the heat dissipation module 104 is a liquid cooling module.

[0070] Furthermore, in some embodiments of the present application, the vehicle-mounted projection system 1 further includes: a first control device 105 and a second control device 106. The first control device 105 is connected to the driving mechanism 101 in communication, and can control the driving mechanism 101 to drive the first projection module 102 and the second projection module 103 to switch between the first projection state and the second projection state. The second control device 106 is connected to the first projection module 102 and the second projection module 103 in communication, and is used to control the first projection module 102 to project the first preset information, and the second projection module 103 to project the second preset information.

[0071] In the vehicle-mounted projection system 1 of the embodiment of the present application, the control device for controlling the driving mechanism 101 and the control device for controlling the projection module are independently arranged, so that the first control device 105 and the second control device 106 can independently receive control instructions. For example, the first control device 105 can selectively communicate with one or more of the cabin system, remote control or smart phone inside the vehicle 2. As a convertible implementation method, the first control device 105 can be provided with a control button, and the user in the car can control the driving mechanism 101 by manually triggering the control button.

[0072] The second control device 106 can be selectively connected to the cockpit system, remote control or smart phone in the vehicle 2. As a convertible implementation, the first control device 105 can be provided with a control button, and the user in the vehicle can control the projection of the first projection module 102 and the second projection module 103 by manually triggering the control button.

[0073] The second control device 106 may be one, and is connected to the first projection module 102 and the second projection module 103 at the same time. There may be multiple second control devices 106, and each projection module is connected to one second control device 106. The communication connection may be connected via a cable or a signal connection. The first control device 105 and the second control device 106 may include a programmable logic control component (such as a PLC or a CPU), a memory, and electronic components connected to the programmable logic control component, which are well known to those skilled in the art and will not be described in detail here.

[0074] The vehicle-mounted projection system 1 further includes a connection structure 107 , which is used to connect to the top wall of the vehicle 2 . A side surface of the first control device 105 is connected to the connection structure 107 , and a second side surface of the first control device 105 is connected to the driving mechanism 101 .

[0075] The connection mechanism is preferably but not limited to a connection plate or a connection block, etc. By such a configuration, the first control device 105 of the embodiment of the present application can be used to control the driving mechanism 101 and can also be used as a connection component and connected between the connection structure 107 and the projection module.

[0076] Furthermore, in some embodiments of the present application, the vehicle-mounted projection system 1 further includes a protective cover 108, which is disposed outside the first projection module 102 and the second projection module 103. The protective cover 108 can isolate the vehicle-mounted projection system 1 from the space inside the vehicle, so that the vehicle-mounted projection system 1 can be used as an independent and closed isolation space, which is not easily affected and polluted by moisture, air impurities, etc.

[0077] It should be noted that in the embodiment of the present application, the shape of the protective cover 108 is not limited. For example, Figure 1 and Figure 2 As shown, the protective cover 108 is cylindrical and is coaxially arranged at the power output end of the driving mechanism 101. Through such an arrangement, when the driving mechanism 101 drives the protective cover 108 to rotate, the vehicle-mounted projection system 1 of the protective cover 108 is not likely to interfere with the internal environment of the vehicle 2.

[0078] According to an embodiment of the present application, on the other hand, a vehicle 2 is also provided, such as Figure 3 As shown, it comprises a vehicle body and the vehicle-mounted projection system 1 provided by the first aspect of the utility model. The vehicle-mounted projection system 1 is arranged in the vehicle body and is used for projecting onto the vehicle window of the vehicle 2 .

[0079] The vehicle 2 of the second aspect of the utility model includes or uses the vehicle-mounted projection system 1 of the first aspect of the utility model, and thus has its beneficial effects, that is, in the vehicle 2 of the embodiment of the utility model, the first projection module 102 and the second projection module 103 can both be driven by the driving mechanism 101 to project toward the windshield 201 or the side window 202 of the vehicle 2, and the vehicle-mounted projection system 1 of this embodiment has various display effects on the windows of the vehicle 2, which can meet the usage needs of different audiences.

[0080] It should be noted that the vehicle 2 in this application may refer to a large vehicle, a small vehicle, a special vehicle, etc. For example, according to the vehicle type, the vehicle in this application may be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV) or other vehicle types. For the vehicle 2, wheels, a power source, and a transmission system arranged between the wheels and the power source are generally provided. The transmission system can transmit the power provided by the power source to the wheels, so that the wheels rotate, thereby driving the vehicle 2 to travel.

[0081] It should be noted that in the embodiment of the present application, the type of the power source of the vehicle 2 is not limited. For example, for a fuel vehicle 2, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle 2, the power source may refer to an electric motor; for a hybrid vehicle 2, the power source may refer to an engine or an electric motor; for a vehicle 2 powered by other means, the power source may refer to a device that generates power.

[0082] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle-mounted projection system, characterized in that: include: A first projection module (102), used for projecting first preset information; A second projection module (103), used for projecting second preset information; A driving mechanism (101), wherein a power output end of the driving mechanism (101) is respectively connected to the first projection module (102) and the second projection module (103), and is used to drive the two to switch between a first projection state and a second projection state; wherein, in the first projection state, the first projection module (102) projects toward a windshield (201) of a vehicle (2), and the second projection module (103) projects toward a side window (202) of the vehicle (2); and in the second projection state, the first projection module (102) projects toward the side window (202) of the vehicle (2), and the second projection module (103) projects toward the windshield (201) of the vehicle (2).

2. The vehicle-mounted projection system according to claim 1, characterized in that: The second projection modules (103) are arranged in pairs, and each pair of the second projection modules (103) is arranged on both sides of the first projection module (102).

3. The vehicle-mounted projection system according to claim 2, characterized in that: The second projection module (103) is used to perform mirror processing on the first preset information and obtain the second preset information.

4. The vehicle-mounted projection system according to claim 1, characterized in that: The driving mechanism (101) is a rotation source, and the power output end of the rotation source can rotate around a preset axis, and an angle is formed between the preset axis and the horizontal direction.

5. The vehicle-mounted projection system according to any one of claims 1 to 4, characterized in that: It also comprises a heat dissipation module (104), the first projection module (102) and the second projection module (103) are arranged around the heat dissipation module (104), and the heat dissipation module (104) is used to cool the first projection module (102) and the second projection module (103).

6. The vehicle-mounted projection system according to claim 5, characterized in that: The heat dissipation module (104) comprises: A heat sink (1041), the heat sink (1041) abutting against the first projection module (102) and the second projection module (103); The air cooling mechanism (1042) is connected to one side of the heat sink (1041) and is capable of blowing air toward the heat sink (1041).

7. The vehicle-mounted projection system according to any one of claims 1 to 4, characterized in that: Also includes: A first control device (105) is connected to the driving mechanism (101) in communication with the driving mechanism (101), and is used to control the driving mechanism (101) to drive the first projection module (102) and the second projection module (103) to switch between the first projection state and the second projection state; A second control device (106), the second control device (106) is communicatively connected with the first projection module (102) and the second projection module (103), and is used to control the first projection module (102) to project the first preset information, and the second projection module (103) to project the second preset information.

8. The vehicle-mounted projection system according to claim 7, characterized in that: It also includes a connecting structure (107), wherein the connecting structure (107) is used to connect to the top wall of the vehicle (2), a side surface of the first control device (105) is connected to the connecting structure (107), and a second side surface of the first control device (105) is connected to the driving mechanism (101).

9. The vehicle-mounted projection system according to any one of claims 1 to 4, characterized in that: It also comprises a protective cover (108), wherein the protective cover (108) is arranged outside the first projection module (102) and the second projection module (103).

10. A vehicle, characterized in that: include: Vehicle body; The vehicle-mounted projection system (1) according to any one of claims 1 to 9 is arranged in the vehicle body and is used for projecting toward a window of the vehicle (2).

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