3D projection display system simulating automobile rearview mirror

Abstract

The utility model discloses a 3D projection display system for simulating an automobile rearview mirror. The 3D projection display system comprises a 3D photographing and imaging module, a control module, a projection display module, an automobile body distance measuring module and a prompting module, the 3D photographing and imaging module is used for photographing and collecting side and rear information of the vehicle in real time; the control module is used for controlling the direction rotation of the projection display module and the starting of the prompting module according to the information input by the 3D photographing and imaging module and the distance input by the vehicle body distance measuring module; the projection display module is used for displaying the side information and the rear information of the vehicle acquired by the 3D photographing and imaging module; the automobile body distance measuring module is used for measuring the distance between a lamp at the tail of the automobile and a rear automobile; and the prompting module is used for prompting when the distance between the lamp at the tail of the automobile and the rear automobile meets the requirement. By implementing the system provided by the utility model, the visual effect of the automobile rearview mirror can be simulated, and the visual effect is displayed in a 3D projection mode, so that the requirements of a driver are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D projection display systems, in particular to a 3D projection display system simulating a car rearview mirror. Background Art

[0002] With the advancement of technology and the increasing intelligence of in-vehicle electronic devices, traditional rearview mirrors are no longer able to meet the growing demand for safe driving. Existing technologies have attempted to replace rearview mirrors with display screens. These typically involve installing a display screen in the original rearview mirror's place, with a camera mounted at the rear of the vehicle to capture the rear view and display it on the display screen. However, these solutions lack effective display quality and differ significantly from traditional rearview mirrors in how they are used, making them difficult for drivers to adapt to.

[0003] Therefore, it is necessary to design a new system to simulate the visual effects of a car rearview mirror and display it in a 3D projection manner to better meet the needs of drivers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a 3D projection display system simulating a car rearview mirror.

[0005] To solve the above technical problems, the purpose of the present utility model is achieved through the following technical solutions: providing a 3D projection display system simulating a car rearview mirror, comprising: a 3D photography imaging module, a control module, a projection display module, a vehicle body distance measurement module and a prompt module; wherein the 3D photography imaging module, the projection display module, the vehicle body distance measurement module and the prompt module are respectively connected to the control module; the 3D photography imaging module is used to capture and collect information about the side and rear of the vehicle in real time; the control module is used to control the rotation direction of the projection display module and the activation of the prompt module according to the information input by the 3D photography imaging module and the distance input by the vehicle body distance measurement module; the projection display module is used to display the vehicle side and rear information obtained by the 3D photography imaging module; the vehicle body distance measurement module is used to measure the distance between the rear lamp of the car and the following vehicle; and the prompt module is used to give a prompt when the distance between the rear lamp of the car and the following vehicle meets the requirements.

[0006] Its further technical solution is: it also includes a power supply module, which is respectively connected to the 3D photography imaging module, the control module, the projection display module, the vehicle body distance measurement module and the prompt module.

[0007] Its further technical solution is: the 3D photography imaging module includes a lens, a sensor, an image information processor and a connector, the lens and the sensor are respectively connected to the image information processor; the image information processor is connected to the connector; the connector is connected to the control module; and the lens is connected to the control module.

[0008] A further technical solution is: the lens includes a first 3D camera and a second 3D camera, the first 3D camera is installed on the left side of the front of the car; the second 3D camera is installed on the right side of the front of the car.

[0009] Its further technical solution is: the control module includes a detection sensor, a main control processor and a drive circuit; the detection sensor, the drive circuit, the 3D photography imaging module, the projection display module, the vehicle body ranging module and the prompt module are respectively connected to the main control processor.

[0010] Its further technical solution is: the projection display module includes a left micro-projector, a left holographic projection film, a right micro-projector, a right holographic projection film and an automatic lifting and rotating device; the left micro-projector is installed on the left roof, and the left holographic projection film is installed in front of the left side of the driver's seat through the automatic lifting and rotating device; the right micro-projector is installed on the right roof, and the right holographic projection film is installed in front of the right side of the co-pilot seat through the automatic lifting and rotating device.

[0011] Its further technical solution is: the automatic lifting and rotating device includes a connecting column, an automatic telescopic component, a rotating motor, and a fixed bracket; the fixed bracket is connected to the rotating motor; the rotating motor is connected to the automatic telescopic component; the automatic telescopic component is connected to the connecting column; the left holographic projection film and the right holographic projection film are respectively connected to the connecting column; the fixed bracket is respectively installed in front of the left side of the driver's seat and the right front of the co-driver's seat.

[0012] Its further technical solution is: the vehicle body ranging module includes LED lamp beads, laser transmitters, receivers, distance sensors and controllers, the LED lamp beads, the laser transmitters, the receivers and the distance sensors are respectively connected to the controller; the controller is connected to the control module.

[0013] A further technical solution is: the prompt module includes a voice alarm module.

[0014] A further technical solution is: the voice alarm module includes a loudspeaker.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a 3D photography imaging module, a control module, a projection display module, a vehicle body distance measurement module and a prompt module, utilizes the control module to control the direction of the projection display module according to the 3D photography imaging module, and activates the prompt module when necessary according to the information input by the vehicle body distance measurement module, thus truly simulating the visual effect of the rearview mirror and displaying it in a 3D projection manner, thereby better meeting the needs of the driver.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic block diagram of a 3D projection display system simulating a car rearview mirror provided in an embodiment of the present utility model;

[0019] Figure 2 A schematic diagram of the exploded structure of a 3D photography imaging module provided by an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of the automatic lifting and rotating device provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of a specific circuit of a driving module for an LED lamp bead provided in an embodiment of the present invention;

[0022] Description of the symbols in the figure:

[0023] 10. 3D photography imaging module; 11. Lens; 12. Sensor; 13. Image information processor; 14. Connector; 20. Control module; 30. Projection display module; 40. Vehicle body ranging module; 50. Prompt module; 60. Power module; 71. Connecting column; 72. Automatic telescopic component; 73. Rotating motor; 74. Fixed bracket; 75. Right holographic projection film. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0026] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0027] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] See also Figure 1 , Figure 1 This utility model provides a schematic block diagram of a 3D projection display system that simulates a car rearview mirror. This system can be used in automobiles to realistically simulate the visual effects of a car rearview mirror while providing richer information and improving driving safety. Specifically, the realistically simulated rearview mirror visuals enable drivers to quickly adapt to the new display format, reducing safety hazards associated with changing habits and improving driving safety. Holographic projection and sensor technology provide richer vehicle and environmental information than traditional rearview mirrors. A high-performance image processing unit enables rapid data processing and image generation. A modular design facilitates installation and maintenance, reducing production and operating costs.

[0029] See also Figure 1The above-mentioned 3D projection display system simulating a rearview mirror of an automobile includes: a 3D photography imaging module 10, a control module 20, a projection display module 30, a vehicle body distance measurement module 40, and a prompt module 50; wherein the 3D photography imaging module 10, the projection display module 30, the vehicle body distance measurement module 40, and the prompt module 50 are respectively connected to the control module 20; the 3D photography imaging module 10 is used to capture and collect information about the side and rear of the vehicle in real time; the control module 20 is used to control the rotation direction of the projection display module 30 and the activation of the prompt module 50 based on the information input by the 3D photography imaging module 10 and the distance input by the vehicle body distance measurement module 40; the projection display module 30 is used to display the vehicle side and rear information obtained by the 3D photography imaging module 10; the vehicle body distance measurement module 40 is used to measure the distance between the rear lamp of the automobile and the following vehicle; and the prompt module 50 is used to provide a prompt when the distance between the rear lamp of the automobile and the following vehicle meets the requirements.

[0030] In this embodiment, the 3D imaging module 10 captures real-time information about the side and rear of the vehicle. The body distance measurement module 40 measures the distance between the vehicle's rear lights and the following vehicle. The control module 20 controls the rotation of the projection display module 30 and the activation of the prompt module 50 based on the information input from the 3D imaging module 10 and the distance input from the body distance measurement module 40. The projection display module 30 displays the vehicle's side and rear information captured by the 3D imaging module 10. The prompt module 50 provides a prompt when the distance between the vehicle's rear lights and the following vehicle meets the required distance.

[0031] The system uses a 3D imaging module 10 to collect real-time information about the vehicle's surroundings and a body distance measurement module 40 to measure the distance between the vehicle's rear lights and the following vehicle. Based on this information, the control module 20 controls the direction of the projection display module 30 and activates the notification module 50, providing the driver with the necessary information and ensuring driving safety.

[0032] The 3D imaging module 10 and projection display module 30 provide drivers with more comprehensive and intuitive information about the vehicle's sides and rear, helping to avoid safety hazards caused by blind spots. The body distance measurement module 40 measures the distance between the vehicle's rear lights and the vehicle behind in real time, while the warning module 50 provides timely warnings to help the driver maintain a safe distance. The entire system is designed to enhance the driver's awareness of the vehicle's surroundings, thereby improving driving safety and reducing the likelihood of accidents.

[0033] Overall, this 3D projection display system that simulates a car rearview mirror provides drivers with more comprehensive and intuitive information through the collaborative work of multiple modules. At the same time, it effectively improves driving safety and driving comfort by monitoring vehicle distances in real time and providing warnings.

[0034] The above-mentioned 3D projection display system simulating a car rearview mirror further includes a power module 60 , which is connected to the 3D photography imaging module 10 , the control module 20 , the projection display module 30 , the vehicle body distance measurement module 40 and the prompt module 50 respectively.

[0035] The power module 60 provides power to the 3D photography imaging module 10 , the control module 20 , the projection display module 30 , the vehicle body distance measurement module 40 and the prompt module 50 .

[0036] In one embodiment, see Figure 2 The above-mentioned 3D photography imaging module 10 includes a lens 11, a sensor 12, an image information processor 13 and a connector 14. The lens 11 and the sensor 12 are respectively connected to the image information processor 13; the image information processor 13 is connected to the connector 14; the connector 14 is connected to the control module 20; and the lens 11 is connected to the control module 20.

[0037] In this embodiment, the lens 11 and the sensor 12 are used to capture environmental information around the vehicle and provide it to the image information processor 13. The image information processor 13 receives signals from the sensor 12, generates corresponding images based on the vehicle status and environmental information, and transmits the image signal to the projection display module 30.

[0038] The lens 11 includes a first 3D camera and a second 3D camera. The first 3D camera is installed on the left side of the front of the car; the second 3D camera is installed on the right side of the front of the car.

[0039] Specifically, the lens 11 and sensor 12 capture environmental information surrounding the vehicle and transmit it to the image processor 13. The image processor 13 receives signals from the sensor 12, generates an image based on the vehicle's status and environmental information, and transmits it to the projection display module 30. Connector 14 connects the image processor 13 to the control module 20 to transmit the processed image signal. The control module 20, connected to connector 14, controls the operation of the entire system and coordinates communication between modules. The projection display module 30 receives the processed image signal and displays it inside the vehicle for the driver to view.

[0040] The contents performed by the above-mentioned image information processor 13 are executed using existing computer vision technology, deep learning model, posture estimation algorithm, etc., which belong to the existing technology here and need not be elaborated.

[0041] By capturing environmental information around the vehicle through the lens 11 and the sensor 12, the driver can obtain a more comprehensive field of view, improve the perception of the surrounding environment, and help avoid potential dangerous situations.

[0042] The image generated by the image information processor 13 provides the driver with a panoramic view, helping him to more clearly understand the situation around the vehicle, including blind spots and obstacles.

[0043] The first camera and the second 3D camera are installed on the left and right sides of the front of the car respectively, which can provide a wider coverage area to ensure that no important information points are missed.

[0044] This system utilizes multiple cameras, sensors12, and processors to enhance the driver's situational awareness. By generating a panoramic image and displaying it on a projection module, it helps improve driving safety and reduce potential accident risks. Furthermore, the dual-camera design provides information from multiple angles, helping the driver gain a comprehensive understanding of their surroundings and driving more safely.

[0045] In one embodiment, the above-mentioned control module 20 includes a detection sensor, a main control processor and a driving circuit; the detection sensor, the driving circuit, the 3D photography imaging module 10, the projection display module 30, the vehicle body ranging module 40 and the prompt module 50 are respectively connected to the main control processor.

[0046] Specifically, the detection sensor is used to detect the position and direction of the driver's head; the main control processor is used to process the information transmitted by the detection sensor and the information transmitted by the vehicle body ranging module 40 to control the driving circuit to automatically adjust the direction of the projection display screen, that is, the projection display module 30 or start the voice alarm module.

[0047] In this embodiment, the detection sensor is used to detect the driver's head position and orientation. It can be camera-based facial recognition technology or other sensor technology. The main control processor is responsible for processing the information transmitted by the detection sensor and the vehicle body ranging module 40, and controlling the driver circuit to adjust the orientation of the projection display module 30 or activate the voice alarm module. The driver circuit controls the orientation of the projection display module 30 or activates the voice alarm module according to the instructions of the main control processor.

[0048] By monitoring the driver's head position and direction through detection sensors, the driver's status, such as distracted or fatigued driving, can be detected in a timely manner, improving driving safety.

[0049] The main control processor can adjust the direction of the projection display module 30 in real time based on the information transmitted by the detection sensor and the vehicle body distance measurement module 40 to ensure that the driver can obtain the most appropriate field of view.

[0050] When the system detects that the driver is unfit to drive or the surrounding environment is dangerous, it can activate the voice alarm module to remind the driver to pay attention to safety and avoid potential accidents.

[0051] This system combines detection sensors, a main control processor, and a body distance measurement module 40 to monitor and control the driver and the vehicle's surroundings, thereby improving driving safety and comfort. By automatically adjusting the direction of the projection display module 30 and activating the voice alarm module, the system can promptly respond to changes in the driver and the environment, effectively reducing driving risks and enhancing the driving experience.

[0052] In one embodiment, see Figure 3 The above-mentioned projection display module 30 includes a left micro-projector, a left holographic projection film, a right micro-projector, a right holographic projection film 75 and an automatic lifting and rotating device; the left micro-projector is installed on the left roof, and the left holographic projection film is installed in front of the left of the driver's seat through the automatic lifting and rotating device; the right micro-projector is installed on the right roof, and the right holographic projection film 75 is installed in front of the right of the co-pilot seat through the automatic lifting and rotating device.

[0053] In one embodiment, see Figure 3 The above-mentioned automatic lifting and rotating device includes a connecting column 71, an automatic telescopic component 72, a rotating motor 73, and a fixed bracket 74; the fixed bracket 74 is connected to the rotating motor 73; the rotating motor 73 is connected to the automatic telescopic component 72; the automatic telescopic component 72 is connected to the connecting column 71; the left holographic projection film and the right holographic projection film 75 are respectively connected to the connecting column 71; the fixed bracket 74 is respectively installed in front of the left side of the driver's seat and the right side of the passenger seat.

[0054] In this embodiment, left and right micro-projectors are mounted on the vehicle roof to generate projection light sources. Left and right holographic projection films 75 are mounted on the left front of the driver's seat and right front of the passenger seat via an automatic lifting and rotating mechanism to receive and display projected images. The automatic lifting and rotating mechanism includes a connecting column 71, an automatic telescopic assembly 72, a rotating motor 73, and a fixed bracket 74, which controls the position and angle of the holographic projection films.

[0055] The use of holographic projection film to display projected images provides a more realistic display and enhances the user experience. The left and right holographic projection films 75 can be flexibly adjusted in position and angle via an automatic lifting and rotating mechanism, enabling multi-angle projection display to meet the needs of different drivers and passengers. Mounting the projection equipment on the vehicle roof and utilizing the automatic lifting and rotating mechanism effectively saves space, making the entire system more compact and easier to integrate.

[0056] This design combines the projection display module 30 with holographic projection technology. The automatic lifting and rotating mechanism allows for flexible adjustment of the projection position and angle, providing drivers and passengers with a more convenient and realistic information display. It also saves space, enhances the sense of technology within the vehicle, and improves driving pleasure and comfort.

[0057] In one embodiment, the vehicle body distance measurement module 40 includes an LED lamp bead, a laser transmitter, a receiver, a distance sensor 12 and a controller. The LED lamp bead, the laser transmitter, the receiver and the distance sensor 12 are respectively connected to the controller; the controller is connected to the control module 20.

[0058] In one embodiment, see Figure 4 The above-mentioned LED lamp beads are driven by a driver module, which is driven by a chip model of but not limited to the STM32L151 series.

[0059] The vehicle body ranging module 40 is actually a rear position light with a laser ranging function. It is a lighting device that integrates a laser ranging module. Installed at the rear of the vehicle, it not only provides basic lighting but also uses laser ranging technology to measure the distance to objects around the vehicle. A laser emitter within the rear position light emits a laser beam, which is reflected upon encountering an object. The reflected light is received by a receiver within the position light. By measuring the time difference between laser emission and reflection and combining it with the principle of the constant speed of light, the distance between the object and the vehicle can be calculated. This measured distance data is then output as a digital signal to the control module 20.

[0060] The laser ranging module integrated into the rear position lamp helps the driver perceive the distance to objects around the vehicle in real time, improving driving safety. By measuring distance, the driver can more accurately judge the distance between the vehicle and surrounding obstacles, thus avoiding collisions.

[0061] The rear position lamps not only provide traditional lighting functions but also integrate laser ranging technology, making them multifunctional. Besides providing illumination, they can also measure distances, providing drivers with more information, enhancing driving assistance functions, and improving the driving experience.

[0062] The measured distance data can be further processed and utilized by outputting digital signals to the control module 20. This intelligent design can make the vehicle system more intelligent, realize automated driving assistance functions, and improve driving efficiency and convenience.

[0063] In general, the rear position light design with integrated laser ranging function combines lighting and intelligent perception functions, improving the safety, functionality and intelligence level of the vehicle, providing the driver with more comprehensive information support, and bringing a safer and smarter driving experience.

[0064] In one embodiment, the prompt module 50 includes a voice alarm module.

[0065] The voice alarm module includes a speaker.

[0066] Specifically, the voice alarm module primarily consists of a sound output device, a control circuit, and memory. The sound output device is typically a set of speakers used to play the alarm sound. The control circuit is responsible for receiving and processing the alarm signal, determining when and which alarm sound to play based on a pre-set program. The memory is used to store the alarm sound so that it can be called up by the control circuit when needed.

[0067] When the vehicle distance measurement module 40 measures a distance value to the following vehicle that is less than 3 meters, a voice prompt is given through the voice alarm module, which can effectively and timely prevent accidents caused by the vehicle colliding with the following vehicle due to lane changing.

[0068] The above-mentioned 3D projection display system simulating a car rearview mirror is provided with a 3D photography imaging module 10, a control module 20, a projection display module 30, a vehicle body distance measurement module 40 and a prompt module 50. The control module 20 controls the direction of the projection display module 30 according to the 3D photography imaging module 10, and activates the prompt module 50 when necessary based on the information input by the vehicle body distance measurement module 40. The system truly simulates the visual effect of the rearview mirror and displays it in a 3D projection manner to better meet the needs of the driver.

[0069] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A 3D projection display system simulating a car rearview mirror, characterized in that: include: 3D photography imaging module, control module, projection display module, vehicle body distance measurement module and prompt module; wherein the 3D photography imaging module, the projection display module, the vehicle body distance measurement module and the prompt module are respectively connected to the control module; the 3D photography imaging module is used to capture and collect information about the side and rear of the vehicle in real time; the control module is used to control the rotation of the projection display module and the start of the prompt module according to the information input by the 3D photography imaging module and the distance input by the vehicle body distance measurement module; the projection display module is used to display the vehicle side and rear information obtained by the 3D photography imaging module; the vehicle body distance measurement module is used to measure the distance between the lamp at the rear of the vehicle and the rear vehicle; the prompt module is used to give a prompt when the distance between the lamp at the rear of the vehicle and the rear vehicle meets the requirements.

2. A 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: It also includes a power supply module, which is respectively connected to the 3D photography imaging module, the control module, the projection display module, the vehicle body distance measurement module and the prompt module.

3. The 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: The 3D photography imaging module includes a lens, a sensor, an image information processor and a connector. The lens and the sensor are respectively connected to the image information processor; the image information processor is connected to the connector; the connector is connected to the control module; and the lens is connected to the control module.

4. The 3D projection display system simulating a car rearview mirror according to claim 3, characterized in that: The lens includes a first 3D camera and a second 3D camera, wherein the first 3D camera is installed on the left side of the front of the car; and the second 3D camera is installed on the right side of the front of the car.

5. The 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: The control module includes a detection sensor, a main control processor and a drive circuit; the detection sensor, the drive circuit, the 3D photography imaging module, the projection display module, the vehicle body distance measurement module and the prompt module are respectively connected to the main control processor.

6. The 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: The projection display module includes a left micro-projector, a left holographic projection film, a right micro-projector, a right holographic projection film and an automatic lifting and rotating device; the left micro-projector is installed on the left roof, and the left holographic projection film is installed on the left front of the driver's seat through the automatic lifting and rotating device; the right micro-projector is installed on the right roof, and the right holographic projection film is installed on the right front of the co-pilot seat through the automatic lifting and rotating device.

7. The 3D projection display system simulating a car rearview mirror according to claim 6, characterized in that: The automatic lifting and rotating device includes a connecting column, an automatic telescopic component, a rotating motor, and a fixed bracket; the fixed bracket is connected to the rotating motor; the rotating motor is connected to the automatic telescopic component; the automatic telescopic component is connected to the connecting column; the left holographic projection film and the right holographic projection film are respectively connected to the connecting column; the fixed bracket is respectively installed in front of the left side of the driver's seat and the front of the right side of the co-driver's seat.

8. The 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: The vehicle body distance measurement module includes an LED lamp bead, a laser transmitter, a receiver, a distance sensor and a controller. The LED lamp bead, the laser transmitter, the receiver and the distance sensor are respectively connected to the controller; the controller is connected to the control module.

9. The 3D projection display system simulating a car rearview mirror according to claim 1, characterized in that: The prompt module includes a voice alarm module.

10. The 3D projection display system simulating a car rearview mirror according to claim 9, characterized in that: The voice alarm module includes a speaker.

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