Projection system for displaying projection information on rear window
By installing a projection system on the rear window of the vehicle, the problem of unclear projected information has been solved, enabling clear display of information and safety prompts, thus improving the driving experience and safety.
Patent Information
- Application Number
- CN202520107309.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing technology suffers from problems where the projected information is unclear when projected onto the ground and cannot be clearly seen by other vehicles.
A projection system is installed on the rear window of the vehicle. Information is projected onto the rear window through a projector and connected to a mobile terminal and body controller through a central control unit and communication unit to achieve the display of customized projection information.
It improves the clarity and visibility of projected information, increases the enjoyment of driving, reduces traffic accidents, prevents dangers caused by opening doors, and enhances the safety of people inside and outside the vehicle.
Smart Images
Figure CN223590635U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to car lamp projection technical field, especially in rear window display projection information's projection system. BACKGROUND
[0002] At present, the technology of combining the lamp outside the vehicle with the projection lamp is more, such as combining with the headlamp, combining with the measuring sign lamp, combining with the vehicle door and so on. Most of them are applied to projecting to the ground, displaying icons and so on. Specifically, it includes: car rear projection: the module is arranged behind the vehicle, is used to project the information transmitted by the mobile terminal to the road surface behind the vehicle body. It can improve the comfort and safety of vehicle driving, and the car rear projection can set the projection distance and light intensity. Rearview camera: one of the car-mounted cameras for reversing image, mainly the display screen in front of the driver during reversing can display the image of the rearview camera, which can intuitively see the real-time video image of the rear of the vehicle. However, since the projection information is usually projected on the ground in the prior art, it will lead to the situation that the projection information cannot be clearly watched by other vehicles due to the distance of the vehicle and the ground conditions. SUMMARY
[0003] The utility model aims at providing a kind of projection system of projection information display in rear window, to solve the situation that the projection information projected to ground is not clear and cannot be clearly watched in prior art.
[0004] The utility model embodiment provides a kind of projection system of projection information display in rear window, the projection system includes vehicle body main body and projection unit, the projection unit is placed on the vehicle body main body;The vehicle body main body includes vehicle body controller and communication unit, and the projection unit includes central control unit and projector;The communication unit one end is electrically connected with mobile terminal, and the other end is electrically connected with the first end of the central control unit, and the vehicle body controller one end is electrically connected with the second end of the central control unit, and the third end of the central control unit is electrically connected with the projector, and the projector is placed in vehicle body main body tail, and the vehicle body controller is used to send door opening information to the central control unit, and the mobile terminal is used to send self-defined projection information to the central control unit, and the projector is used to project the projection information corresponding thereto to the rear window of vehicle body based on the self-defined projection information sent by the mobile terminal and the door opening information sent by vehicle body controller.
[0005] Further, the projector is fixedly installed at the tail of the vehicle body, and the installation angle of the projector is adjusted by the projection angle of the projector, so that the projection range of the projector covers the rear window of the vehicle body.
[0006] Further, the projector is installed at the central axis of the tail of the vehicle body.
[0007] Further, the rear window of the vehicle body is pasted with a protective film, and the protective film is dark and opaque.
[0008] Further, the communication unit is a wireless communication unit, and is configured to enable the mobile terminal to communicate with the central control unit.
[0009] Further, the vehicle body further comprises a central control screen, which is electrically connected with the central control unit and is configured to synchronously display the projection information.
[0010] Further, the vehicle body further comprises a power module, which is electrically connected with the vehicle body controller, the communication unit, the projection unit and the central control screen, and is configured to provide working power.
[0011] Further, the power module is a vehicle-mounted power supply or a backup power supply.
[0012] Further, the central control unit is integrated with an MCU processor.
[0013] Further, the vehicle body is further integrated with a music playing unit, which is electrically connected with the central control unit, and the central control unit is configured to send lyrics information and musical note information transmitted by the music playing unit to the projector.
[0014] The technical scheme provided by the embodiment of the utility model has the beneficial effects that the application provides a projection system for displaying projection information on a rear window, which comprises a vehicle body and a projection unit, and the projection unit is arranged on the vehicle body; the vehicle body comprises a vehicle body controller and a communication unit, and the projection unit comprises a central control unit and a projector; one end of the communication unit is electrically connected with a mobile terminal, and the other end is electrically connected with a first end of the central control unit; one end of the vehicle body controller is electrically connected with a second end of the central control unit; a third end of the central control unit is electrically connected with the projector; the projector is arranged at the tail of the vehicle body; the vehicle body controller is configured to send door opening information to the central control unit; the mobile terminal is configured to send custom projection information to the central control unit; and the projector is configured to project corresponding projection information on the rear window of the vehicle body based on the custom projection information sent by the mobile terminal and the door opening information sent by the vehicle body controller. The projection information is projected on the rear window of the vehicle, and the following advantages are achieved: the driving interest is increased during waiting for a vehicle, the driver can pay more attention, the rear vehicle can be prompted to reduce traffic accidents, the door opening danger of the people inside and outside the vehicle can be warned, and the accidents caused by opening the door can be effectively and timely prevented. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0016] Figure 1 It is a projection system structure schematic diagram of the present application for displaying projection information on rear window.
[0017] Figure 2 It is a projection lamp position structure schematic diagram provided by the present application.
[0018] Figure 3 It is a car interior central control screen display schematic diagram provided by the present application.
[0019] Figure 4 It is a projector principle structure schematic diagram provided by the present application. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the embodiments of the present application in combination with the drawings.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application, for example, the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "upper end", "lower end", "middle" and the like indicate the orientation or position based on the orientation or position shown in the drawings, and are only for the purpose of description, and cannot be understood as the limitation of the technical solutions.
[0022] The terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion; the terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, and are not used to describe a specific order. The meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.
[0023] Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.
[0024] Embodiment: The specific implementation is as follows:
[0025] As shown in Figure 1 It is a projection system structure schematic diagram of the application embodiment for displaying projection information on rear window.
[0026] As an example, the projection system includes a vehicle body main body 1 and a projection unit 2, the projection unit 2 is placed on the vehicle body main body 1; the vehicle body main body 1 includes a vehicle body controller 110 and a communication unit 100, the projection unit 2 includes a central control unit 200 and a projector 210; one end of the communication unit 100 is electrically connected with a mobile terminal 3, the other end is electrically connected with the first end of the central control unit 200, one end of the vehicle body controller 110 is electrically connected with the second end of the central control unit 200, the third end of the central control unit 200 is electrically connected with the projector 210, the projector 210 is placed at the tail of the vehicle body main body 1, the vehicle body controller 110 is used for sending door opening information to the central control unit 200, the mobile terminal 3 is used for sending self-defined projection information to the central control unit 200, and the projector 210 is used for projecting corresponding projection information to the rear window of the vehicle body based on the self-defined projection information sent by the mobile terminal 3 and the door opening information sent by the vehicle body controller 110. Specifically, the vehicle owner or passenger presses the door opening button beside the seat, sends to the central control unit, and then sends corresponding instructions by the central control unit, so that the rear window of the vehicle gives priority to the prompt, for example, "the left rear door will be opened" and has a corresponding icon display light, which can prompt the rear vehicle or person that the front vehicle will open the door, so as to reduce the occurrence of traffic accidents. The central control unit also sends a command synchronously, and displays to the internal screen of the vehicle, as shown in Figure 3 When the door is opened, the door on the corresponding screen in the vehicle is highlighted and displayed. The rear window projector can also increase the driving interest, and can project self-defined projection information such as "I am a novice", "will turn left", "just got a license, please be careful!", "there is a traffic accident in front, slow down", "there is a pregnant woman in the vehicle, please be careful!", "there is a pet in the vehicle, please do not feed" and the like. When a traffic accident occurs in front, the vehicle owner can project on the rear window through the mobile phone Bluetooth connection to prompt or ask for help from other drivers.
[0027] In some possible implementation manners, the communication unit 100 is a wireless communication unit, and is configured to enable the mobile terminal 3 to communicate with the central control unit 200. Figure 2 As shown in FIG. 1, the projection unit 2 is fixedly installed at the rear of the vehicle body, and the installation angle of the projection unit 2 is adjusted by adjusting the projection angle of the projection unit 2, so that the projection range of the projection unit 2 covers the rear window of the vehicle body. Specifically, the projection unit 2 is installed at the central axis of the rear of the vehicle body.
[0028] In some possible implementation manners, the rear window of the vehicle body is attached with a protective film, and the protective film is dark and opaque. That is, the rear window glass or the film uses a peep-proof principle (the outside can be clearly seen from the inside, but the inside cannot be clearly seen from the outside) or the rear window is dark and opaque in color. When projection is needed, the high-definition projection unit 2 can directly project onto the window, without occupying other places and being very convenient, and without affecting other functions. Figure 2
[0029] In some possible implementation manners, the communication unit 100 is a wireless communication unit, and is configured to enable the mobile terminal 3 to communicate with the central control unit 200.
[0030] In some possible implementation manners, as shown in FIG. 1, the vehicle body 1 further includes a central control screen 130, which is electrically connected with the central control unit 200, and is configured to synchronously display the projection information. Figure 3
[0031] In some possible implementation manners, the vehicle body 1 further includes a power module 120, which is electrically connected with the vehicle body controller 110, the communication unit 100, the projection unit 2, and the central control screen 130, and is configured to provide working power. The power module 120 is a vehicle-mounted power supply or a backup power supply.
[0032] In some possible implementation manners, the central control unit 200 is integrated with an MCU processor.
[0033] In some possible implementation manners, the vehicle body 1 is further integrated with a music playing unit 140, which is electrically connected with the central control unit 200, and the central control unit 200 is configured to send lyrics information and musical note information transmitted by the music playing unit 140 to the projection unit 2. Specifically, when the music function is turned on in the vehicle, the corresponding music symbols or lyrics can also be displayed on the rear window of the vehicle by the central control unit 200, so that a song can be sung in a group in the case of a large number of people, or while having an outdoor meal or playing outdoors, thereby increasing the atmosphere and linkage.
[0034] In some possible implementation manners, the communication unit 100 is a wireless communication unit, and is configured to enable the mobile terminal 3 to communicate with the central control unit 200. Figure 4 As shown, the projector 210 is a mini projector, which can be connected to the network to project lyrics in real time.
[0035] In the above embodiment, by projecting the projection information on the rear window of the vehicle, the driving interest can be increased during waiting for the vehicle, the driver can pay more attention, the rear vehicle can be prompted, the traffic accidents can be reduced, the door opening danger warning can be performed on the people inside and outside the vehicle, the accidents caused by opening the door can be effectively and timely prevented, and the projection information cannot be clearly observed when the projection information is projected on the ground.
[0036] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A projection system for displaying projected information on a rear window, characterized by The projection system comprises a vehicle body and a projection unit, and the projection unit is arranged on the vehicle body; The vehicle body comprises a vehicle body controller and a communication unit, and the projection unit comprises a central control unit and a projector; One end of the communication unit is electrically connected with a mobile terminal, and the other end is electrically connected with a first end of the central control unit; one end of the vehicle body controller is electrically connected with a second end of the central control unit; a third end of the central control unit is electrically connected with the projector; the projector is arranged at the tail of the vehicle body; the vehicle body controller is used to send door opening information to the central control unit; the mobile terminal is used to send custom projection information to the central control unit; and the projector is used to project corresponding projection information to the rear window of the vehicle body based on the custom projection information sent by the mobile terminal and the door opening information sent by the vehicle body controller.
2. The projection system of claim 1, wherein the projection system projects the information on the rear window in a manner that the information is not visible from the outside of the vehicle. The projector is fixedly installed at the tail of the vehicle body, and the installation angle of the projector is adjusted by the projection angle of the projector, so that the projection range of the projector covers the rear window of the vehicle body.
3. The projection system of claim 2, wherein the projection system is configured to project the information on the rear window in a manner that is visible to a driver of the vehicle. The projector is installed at the central axis of the tail of the vehicle body.
4. The projection system of claim 1, wherein the projection system projects the information on the rear window in a manner that the information is not visible from the outside of the vehicle. The rear window of the vehicle body is attached with a protective film, and the protective film is dark and opaque.
5. The projection system of claim 1, wherein the projection system projects the information on the rear window in a manner that the information is not visible from the outside of the vehicle. The communication unit is a wireless communication unit, which is used to enable the mobile terminal to communicate with the central control unit.
6. The projection system of claim 1, wherein the projection system projects the information on the rear window in a manner that is visible to a driver of the vehicle. The vehicle body further comprises a central control screen, which is electrically connected with the central control unit and is used to synchronously display the projection information.
7. The projection system of claim 6, wherein the projection system is configured to project the information on the rear window in a manner that is visible to a driver of the vehicle. The vehicle body further comprises a power module, which is electrically connected with the vehicle body controller, the communication unit, the projection unit and the central control screen, and is used to provide working power.
8. The projection system of claim 7, wherein the projection system is configured to project the information on the rear window in a manner that is visible to a driver of the vehicle. The power module is a vehicle-mounted power supply or a backup power supply.
9. The projection system of claim 1, wherein the projection system projects the information on the rear window. The central control unit is integrated with an MCU processor.
10. The projection system of claim 1, wherein the projection system projects the information on the rear window in a manner that is visible to a driver of the vehicle. The vehicle body is further integrated with a music playing unit, which is electrically connected with the central control unit, and the central control unit is used to send lyric information and note information transmitted by the music playing unit to the projector.