CN111679431A - Head-up display system based on automobile sun shield - Google Patents
Head-up display system based on automobile sun shield Download PDFInfo
- Publication number
- CN111679431A CN111679431A CN202010470762.3A CN202010470762A CN111679431A CN 111679431 A CN111679431 A CN 111679431A CN 202010470762 A CN202010470762 A CN 202010470762A CN 111679431 A CN111679431 A CN 111679431A
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- lcd
- control module
- head
- video
- sun visor
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0035—Sun visors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Instrument Panels (AREA)
Abstract
The invention discloses a head-up display system based on an automobile sun visor, which is embedded in the automobile sun visor and comprises: backlight unit, LCD show control module, speculum, curved mirror, backlight unit sets up and is used for providing illumination for LCD shows control module's display area in LCD display control module's the back, and LCD shows control module and is used for obtaining vehicle driving data and carries out image display with driving data from on-vehicle well accuse, the speculum sets up and is used for the image reflection that LCD shows control module shows to the curved mirror in LCD display control module's the place ahead, the curved mirror enlargies the image that the speculum reflects out to throw the image to driving position the place ahead with the form of virtual image through the curved mirror and predetermine distance department. The invention reduces the volume of the head-up display system, reduces the occupied space, and simultaneously combines the adjustable backlight unit, utilizes the projection of the reflector and the curved mirror, enlarges the imaging distance and enhances the imaging effect.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted head-up display, in particular to a head-up display system based on an automobile sun visor.
Background
The existing head-up display product mainly adopts two modes in the technology, one mode is simple image mirror image, and the image is reflected to an ordinary film piece which can be imaged and is stuck on a windshield through a display (LCD), and the scheme has the defects of insufficient brightness, imaging ghost image, image deformation and the like; the other scheme is that the image is displayed in the front of the driver by a special display lens (a plane mirror and a curved mirror), and the scheme has the main defects that the product seriously shields the sight of the driver, the driving safety is influenced, and the image of the product is seriously shaken in the driving process, so that the driver feels dizzy and fatigue driving is easily caused.
In the prior art, the publication numbers are: the invention patent of CN109817006A discloses a vehicle HUD system, which receives and correspondingly processes the collected information of a navigation system, an environment perception system and a V2X system through a receiving and processing unit; the selection unit selects the acquired information of the navigation system to be better than the acquired information of the environment sensing system and the acquired information of the environment sensing system to be better than the preset priority of the acquired information of the V2X system, and then respectively obtains a lane judgment result, an intersection distance judgment result, ramp information and front danger reminding information; and respectively displaying the lane judgment result, the intersection distance judgment result, the ramp information and the front danger reminding information through the display unit. This patent has solved the problem of HUD multi-information fusion, nevertheless because it is independent device, occupies the interior space of car, does not solve the short problem of imaging distance in addition.
The publication number is: CN109581667A patent discloses an optical projection device for vehicle head-up display, comprising: an imaging unit; the plane mirror is arranged on the optical path of the imaging unit, and the reflecting surface of the plane mirror faces the imaging unit; the first magnifier is arranged on the reflection light path of the plane mirror, and the reflection surface of the first magnifier faces the plane mirror; the second magnifier is arranged on the reflection light path of the first magnifier, and the reflection surface of the second magnifier faces the first magnifier; the windshield glass is arranged on the reflection light path of the second magnifier, and the reflection surface of the windshield glass faces the second magnifier. According to the invention, the first magnifier (the free-form surface mirror or the cylindrical mirror) is added between the plane mirror and the second magnifier, and the travel of the reflected light in the HUD is prolonged. The internal optical path length of the HUD can be increased by more than 1.5 times of that of the two mirror systems, i.e. the object distance is more than 1.5 times of the original one. Under the condition of the same focal length and magnification of the free-form surface mirror, the distance of a virtual image projected by the HUD on the windshield can be increased by more than 1.5 times. Although the patent application increases the imaging distance, the patent application is a separate device and is large in size and space-consuming.
Disclosure of Invention
The invention provides a head-up display system based on an automobile sun visor, aiming at overcoming the defects that the head-up display system of a passenger automobile in the prior art is large in occupied space, short in imaging distance and poor in imaging effect.
The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:
a head-up display system based on a car sun visor, the system being embedded in a car sun visor, comprising: backlight unit, LCD show control module, speculum, curved mirror, backlight unit sets up and is used for providing illumination light for LCD shows control module's display area in LCD display control module's the back, LCD shows control module and is used for handling and shows the image of treating throwing, the speculum sets up and is used for on the image reflection that will treat to throw in LCD display control module's the place ahead to the curved mirror, the curved mirror reflects out the speculum treat that throw the image and enlarge to the curved surface through the curved mirror will treat that the image of throwing throws to the position place ahead of driving with the form of virtual image and predetermine distance department.
In the scheme, the backlight unit is formed by arranging a high-efficiency LED light source in a lamp barrel, and a polaroid is arranged between the lamp barrel and the LCD display control module.
In this scheme, LCD shows control module including: the video control processor, CAN bus controller, wireless communication module, video input interface, function button group, backlight unit brightness control circuit, LCD display screen, the concrete relation of connection is: the CAN bus controller is in communication connection with the video control processor, the CAN bus controller is in communication connection with an external vehicle-mounted CAN transceiver, the wireless communication module is in communication connection with the video control processor, the video input interface is connected to the video signal input end of the video control processor, the function key set is connected to the key input end of the video control processor, the backlight unit brightness adjusting circuit is connected to the control output end of the video control processor, and the LCD display screen is connected to the display output end of the video control processor.
In this scheme, the LCD display control module further comprises: the device comprises a storage module and an alarm module, wherein the storage module and the alarm module are electrically connected with the video control processor.
In the scheme, the alarm module is a buzzer alarm module.
In the scheme, the wireless communication module is a 4G communication module.
In the scheme, the video control processor is also provided with a software debugging interface and a serial communication interface.
In this scheme, the video input interface includes: VGA video interface, CVB interface.
In this scheme, the backlight unit brightness adjusting circuit is a stepless backlight unit brightness adjusting circuit.
In the scheme, the preset distance projected by the reflector is 15-20 meters.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the head-up display system and the automobile sun shield are integrally embedded, so that the volume is reduced, the occupied space is reduced, and meanwhile, the adjustable backlight unit is combined, the reflector and the curved mirror are used for projection, so that the imaging distance is enlarged, and the imaging effect is enhanced.
Drawings
Fig. 1 is a perspective view of a head-up display system based on a sun visor of an automobile according to the present invention.
Fig. 2 is a structural side view of a head-up display system based on a car sun visor according to the present invention.
FIG. 3 is a schematic diagram of an LCD display control module.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
As shown in fig. 1-2, a head-up display system based on a car sun visor is disclosed, wherein 1 represents a curved mirror, 2 represents a sun visor, 3 represents a host circuit of an LCD display control module, 4 represents a reflector, and 5 represents a backlight unit, the system is embedded in the car sun visor, the car sun visor can be opened and closed, and can be adjusted left and right and locked, the system comprises: backlight unit, LCD show control module, speculum, curved mirror, backlight unit sets up and is used for providing illumination for LCD shows control module's display area in LCD display control module's the back, and LCD shows control module and is used for obtaining vehicle driving data and carries out image display with driving data from on-vehicle well accuse, the speculum sets up and is used for the image reflection that LCD shows control module shows to the curved mirror in LCD display control module's the place ahead, the curved mirror enlargies the image that the speculum reflects out to throw the image to driving position the place ahead with the form of virtual image through the curved mirror and predetermine distance department.
The head-up display system and the automobile sun shield are integrally embedded, so that the volume is reduced, the occupied space is reduced, and meanwhile, the adjustable backlight unit is combined, and the imaging distance is enlarged by utilizing the projection of the reflector and the curved mirror.
In this scheme, the backlight unit includes: the LED lamp comprises a high-efficiency LED light source and a lamp barrel, wherein the high-efficiency LED light source is arranged in the lamp barrel, and a polaroid is arranged between the lamp barrel and an LCD display control module. The backlight unit has the characteristics of high brightness and low power consumption, so that the image of the invention can be clearly seen just facing sunlight.
In a specific embodiment, the efficient LED light source is arranged in the lamp barrel, the lamp barrel uniformly irradiates the light source to the back of the LCD, and the polarizer is arranged between the LED light source lamp barrel and the back of the LCD to ensure that the light source irradiates the LCD display area most efficiently and uniformly.
It should be noted that, the light transmittance of the curved mirror in the invention is more than 90%, which ensures clear imaging and no image ghost.
In a specific embodiment, the head-up display system is further provided with a front camera and a rear camera, the rear camera faces a driver in the driving position, and the front camera faces the windshield and can be used for driving records.
As shown in fig. 3, in the present embodiment, the LCD display control module includes: the video control processor, CAN bus controller, wireless communication module, video input interface, function button group, backlight unit brightness control circuit, LCD display screen, the concrete relation of connection is: CAN bus controller and video control treater communication connection, CAN bus controller and outside on-vehicle CAN transceiver communication connection, wireless communication module and video control treater communication connection, video input interface connection is to video control treater's video signal input end, the button input that the function is connected to the video control treater is pressed to the key group, the unit brightness control circuit that is shaded is connected to video control treater's control output, and the LCD display screen is connected to video control treater's display output, the video control treater electricity is connected with the crystal oscillator circuit.
In a specific embodiment, the video control processor CAN acquire a video image signal through a video interface or a vehicle, and CAN also acquire driving data from a vehicle-mounted central control through the CAN bus controller, the video image signal and the driving data are processed by the video control processor and then sent to the LCD display screen for display, an image in the LCD display screen is lightened through the high-brightness backlight unit, and the image CAN be displayed more clearly.
The driving data includes vehicle state data such as tire pressure and vehicle speed, and vehicle body surrounding data such as inter-vehicle distance and rear-coming vehicle.
In a specific embodiment, the video control processor may adopt a TW8836 processor, and the CAN bus controller may adopt an MCP2515 chip, the CAN bus controller is used for conversion between CAN communication and SPI communication, and one end of the CAN bus controller is connected to the on-board CAN transceiver, and the other end of the CAN bus controller is connected to the video control processor. The video control processor CAN acquire driving data information such as vehicle speed, tire pressure and the like through the CAN transceiver. LCD display screen can adopt the concrete size and the pixel of TFT display screen to choose for use according to concrete device demand, wireless communication module can be CAT14G communication module, wireless communication module is connected with 4G & GPS antenna to built-in have the SIM card, wireless communication module is used for carrying out real-time communication with outside backstage, video input interface including: the backlight unit comprises a VGA video interface and a CVB interface, wherein the VGA video interface and the CVB interface are used for accessing video signals with different formats into a video control processor, a function key group can be accessed into a plurality of keys to perform the function of menu adjustment, the backlight unit brightness adjusting circuit realizes the brightness adjustment of the backlight unit by receiving an output control signal of the video control processor, and the backlight unit can utilize the video control processor to regulate and control PWM waves so as to control the backlight unit brightness adjusting circuit to realize the brightness adjustment of the stepless backlight unit.
In this scheme, the LCD display control module further comprises: the device comprises a storage module and an alarm module, wherein the storage module and the alarm module are electrically connected with the video control processor.
In a specific embodiment, the alarm module is a buzzer alarm module, and the storage module may be Nor-Flash and is configured to store a power-on animation and a UI icon of the head-up display system.
In the scheme, the video control processor is also provided with a software debugging interface and a serial communication interface.
In a specific embodiment, the video control processor provides a serial communication interface for communicating with external devices, and the software debugging interface can perform ISP online flash and UART serial port debugging of IIC.
In the scheme, the preset distance projected by the reflector is 15-20 meters. In a specific embodiment, the curved mirror and the plane mirror can be opened or closed through rotation, the angle of the curved mirror can be adjusted, and a damping scheme is added to the curved mirror, so that imaging is more stable and clear.
The invention changes the imaging distance by the distance or the angle between the reflecting mirror and the curved mirror. The preset distance projected by the reflector is 15-20 meters, and the imaging distance can be enlarged, so that the problems that the existing head-up display system is small in imaging distance and the sight of a driver is shielded or interfered are effectively solved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A head-up display system based on a car sun visor, wherein the system is embedded in the car sun visor and comprises: backlight unit, LCD show control module, speculum, curved mirror, backlight unit sets up and is used for providing illumination for LCD shows control module's display area in LCD display control module's the back, and LCD shows control module and is used for obtaining vehicle driving data and carries out image display with driving data from on-vehicle well accuse, the speculum sets up and is used for the image reflection that LCD shows control module shows to the curved mirror in LCD display control module's the place ahead, the curved mirror enlargies the image that the speculum reflects out to throw the image to driving position the place ahead with the form of virtual image through the curved mirror and predetermine distance department.
2. The head-up display system based on the car sun visor of claim 1, wherein the backlight unit comprises: the LED lamp comprises a high-efficiency LED light source and a lamp barrel, wherein the high-efficiency LED light source is arranged in the lamp barrel, and a polaroid is arranged between the lamp barrel and an LCD display control module.
3. The head-up display system based on the car sun visor of claim 1, wherein the LCD display control module comprises: the video control processor, CAN bus controller, wireless communication module, video input interface, function button group, backlight unit brightness control circuit, LCD display screen, the concrete relation of connection is: the CAN bus controller is in communication connection with the video control processor, the CAN bus controller is in communication connection with an external vehicle-mounted CAN transceiver, the wireless communication module is in communication connection with the video control processor, the video input interface is connected to the video signal input end of the video control processor, the function key set is connected to the key input end of the video control processor, the backlight unit brightness adjusting circuit is connected to the control output end of the video control processor, and the LCD display screen is connected to the display output end of the video control processor.
4. The head-up display system based on car sun visor of claim 3 wherein the LCD display control module further comprises: the device comprises a storage module and an alarm module, wherein the storage module and the alarm module are electrically connected with the video control processor.
5. The head-up display system based on the automobile sun visor of claim 4, wherein the alarm module is a buzzer alarm module.
6. The head-up display system based on the automobile sun visor of claim 3, wherein the wireless communication module is a 4G communication module.
7. The vehicle sun visor-based heads-up display system of claim 3, wherein the video control processor is further provided with a software debugging interface and a serial communication interface.
8. The system of claim 3, wherein the video input interface comprises: VGA video interface, CVB interface.
9. The head-up display system based on the car sun visor of claim 3, wherein the backlight unit brightness adjusting circuit is a stepless backlight unit brightness adjusting circuit.
10. The head-up display system based on a car sun visor of claim 1, wherein the preset distance projected by the reflector is 15-20 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470762.3A CN111679431A (en) | 2020-05-28 | 2020-05-28 | Head-up display system based on automobile sun shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470762.3A CN111679431A (en) | 2020-05-28 | 2020-05-28 | Head-up display system based on automobile sun shield |
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| Publication Number | Publication Date |
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| CN111679431A true CN111679431A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010470762.3A Pending CN111679431A (en) | 2020-05-28 | 2020-05-28 | Head-up display system based on automobile sun shield |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319380A (en) * | 2020-11-03 | 2021-02-05 | 深圳铭薪房车科技有限公司 | Vehicle-mounted intelligent flat-panel display |
| CN113504748A (en) * | 2021-06-25 | 2021-10-15 | 杭州炽云科技有限公司 | Virtual image imaging method and system for rail transit |
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| CN106114395A (en) * | 2016-08-05 | 2016-11-16 | 王�义 | It is fixed on the HUD on sky shade above Auto Instrument desk |
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| CN109073888A (en) * | 2016-02-25 | 2018-12-21 | 柯尼卡美能达株式会社 | Screen and head-up display |
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2020
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| CN104334391A (en) * | 2012-09-26 | 2015-02-04 | 日本先锋公司 | Head-up display |
| CN104385999A (en) * | 2014-11-11 | 2015-03-04 | 深圳市矽韦氏科技有限公司 | Driving assistance head-up display system and installation method thereof |
| TW201701022A (en) * | 2015-06-24 | 2017-01-01 | Unice E-O Services Inc | Composite car head-up display device capable of effectively increasing a viewing angle, improving entire optical efficiency, simplifying entire system structure, and reducing cost. |
| CN109073888A (en) * | 2016-02-25 | 2018-12-21 | 柯尼卡美能达株式会社 | Screen and head-up display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112319380A (en) * | 2020-11-03 | 2021-02-05 | 深圳铭薪房车科技有限公司 | Vehicle-mounted intelligent flat-panel display |
| CN113504748A (en) * | 2021-06-25 | 2021-10-15 | 杭州炽云科技有限公司 | Virtual image imaging method and system for rail transit |
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Application publication date: 20200918 |