CN207311273U

CN207311273U - A kind of vehicle-mounted head-up-display system

Info

Publication number: CN207311273U
Application number: CN201721315211.XU
Authority: CN
Inventors: 陈君杰; 徐熙平
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-12
Filing date: 2017-10-12
Publication date: 2018-05-04
Anticipated expiration: 2027-10-12

Abstract

The utility model discloses a kind of vehicle-mounted head-up-display system, including head up display and camera module, the head up display includes control core, Video decoding module, projection module, luminance adjustment module, intensity collection module, active illumination switch, astern signal interface, OBD interfaces and wireless connection module, the camera module includes LED module and backup camera, the head up display is placed on above instrument desk, below windshield, the camera module is placed in vehicle tail, and the head up display and camera module are electrically connected.The vehicle-mounted head-up-display system interconnects backup camera and vehicle-mounted new line display device, the image of rear view of vehicle is shown in reversing, driver need not bow or turn one's head, and the information of reversing needs can just be obtained by front windshield imaging, so as to ensure the safety in reversing process.

Description

A kind of vehicle-mounted head-up-display system

Technical field

It the utility model is related to new line display technology field, more particularly to a kind of vehicle-mounted head-up-display system.

Background technology

Head up display (HUD, Head Up Display), also known as head-up display, are to apply in aviation aircraft early stage On flight supplementary instrument on aircraft at present.Using it, pilot need not bow with regard to that can get important driving information.Head up display is earliest Appear on military aircraft, reduction pilot, which bows, checks the frequency of instrument, can effectively improve drive safety.As science and technology is sent out Exhibition, new line Display Technique have been applied to automobile manufacturing field, have occurred vehicle-mounted head-up display therewith.Vehicle-mounted head-up display Important driving information can be shown in windshield position, driver need not bow with regard to that can obtain these information, can To be absorbed in road conditions, drive safety and driving experience are drastically increased.

During reversing or pulling over observing, the sight of vehicle operator often concentrates on rearview mirror or positioned at instrument Reverse image screen below platform and ignore the situation of vehicle front, when the dangerous situation of vehicle front occurs, than if any row People by or front truck move backward, it is impossible to make counter-measure at once, be easy to cause traffic accident.

Utility model content

The problem of sight cannot concentrate on vehicle front in reversing for driver in the prior art, the utility model A kind of vehicle-mounted head-up-display system is provided, which can show the image of rear view of vehicle in reversing, and driver need not bow Or turn one's head, the information of reversing needs can be just obtained by front windshield imaging, so as to ensure the safety in reversing process.

To achieve these goals, technical solutions of the utility model are as follows：

Build a kind of vehicle-mounted head-up-display system, including head up display and camera module, the head up display bag Include control core, Video decoding module, projection module, luminance adjustment module, intensity collection module, active illumination switch, reversing Signaling interface, OBD interfaces and wireless connection module, the camera module include LED module and backup camera, the new line Display is placed on above instrument desk below windshield, and the camera module is placed in vehicle tail, the display that comes back Device and camera module are electrically connected.

Further, the control core is microcontroller or digital signal processor.

Further, the core devices of the Video decoding module are microcontroller or dedicated video decoding chip.

Further, the core devices of the projection module are the controllable display screen of brightness, its display content is by control core Controlled with Video decoding module, its display brightness is controlled by luminance adjustment module.

Further, the core devices of the luminance adjustment module are LED current control chips, its control signal is by controlling Core provides.

Further, the core devices of the intensity collection module are photo resistance, photodiode or photistor.

Further, the active illumination switch is optocoupler or other disconnecting switch, it controls the light on and off of LED module, its On off state is controlled by control core.

Further, the OBD interfaces are connected by wired or wireless mode with vehicle body OBD, and the control core leads to The vehicle body essential informations such as the real-time speed of vehicle, engine speed, water temperature, oil consumption, distance travelled can be obtained by crossing OBD interfaces.

Further, the wireless connection module is connected by way of bluetooth or WIFI with intelligent mobile terminal, by institute The navigation information for stating intelligent mobile terminal is sent to control core in real time.

Further, the backup camera is CCD or CMOS, is connected by CVBS with Video decoding module.The LED Module can illuminate automobile rear area in the case where the ambient brightness such as night or tunnel is low, facilitate car camera imaging.

The beneficial effects of the utility model are：The vehicle-mounted head-up-display system shows backup camera and vehicle-mounted come back Apparatus interconnection, the image of rear view of vehicle is shown in reversing, and driver need not bow or turn one's head, is imaged by front windshield The information needed with regard to reversing can be obtained, so as to ensure the safety in reversing process.

Brief description of the drawings

Fig. 1 is system structure diagram.

Fig. 2 is head up display perspective view.

Fig. 3 is backup camera scheme of installation.

Embodiment

In order to which technical solutions of the utility model and beneficial effect are more clearly understood, with reference to the accompanying drawings and embodiments, The utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this Utility model, is not used to limit the utility model.

Refering to Fig. 1, a kind of vehicle-mounted head-up-display system, including head up display 1 and camera module 2, described come back show Show that device includes control core 101, Video decoding module 102, projection module 103, luminance adjustment module 104, intensity collection module 105th, active illumination switch 106, astern signal interface 107, OBD interfaces 108 and wireless connection module 109, the shooting head mould Block 2 includes LED module 201 and backup camera 202, and head up display 1 and camera module 2 are electrically connected.

Refering to Fig. 2, vehicle-mounted title display 1 is placed on the top of instrument desk 6, the lower section of windshield 7.It is highlighted screen 1031 Information projection to be shown is come out, light projects windshield 7 by the reflection of speculum 1032, and through windshield 7 two Secondary reflection enters the eyes of driver 8, and display information need not bow just in the front of windshield 7 into the virtual image 9, driver 8 Driving assistance information can be obtained.

Refering to Fig. 3, LED module 201 and backup camera 202 are placed in automobile tail.In the low feelings of night ambient brightness Under condition, LED module 201 provides floor light for backup camera 202, backup camera 202 is captured and clearly moves backward Image.

The control core 101 of head up display 1 is STM32F103, and STM32F103 processing speeds are fast, and performance is stablized, power consumption It is low.

The core devices of Video decoding module 102 are that TW8835, TW8835 and STM32 are connected by serial ports, and STM32 will The information of display is sent to TW8835 by serial ports, and TW8835 driving display screens 1031 show corresponding contents.

The core devices of luminance adjustment module 104 are SC445, its electric current output adjustable range is wide, no matter in the sun on daytime In the case of direct projection or in the case of night dark the display brightness of screen 1031 and ambient brightness can be controlled to match. STM32 is output to the PWM ripples duty cycle of SC445 and then the brightness of control screen 1031 by control.

The core devices of intensity collection module 105 are photo resistance, and by drive circuit, the change of environmental light intensity is converted For the change of voltage.STM32 obtains environmental light intensity information by AD conversion, and then by controlling luminance adjustment module 104 to adjust The projection brightness of projection module 103 is saved, reaches the adaptive effect of brightness.

OBD interfaces 108 are connected by connecting line with vehicle body OBD, in vehicle travel process control core 101 in real time from Vehicle body OBD obtains the information such as speed, engine speed, water temperature, oil consumption, distance travelled and controls projection module to throw these information The front of windshield 7 is mapped to, 8 need of driver watch front attentively with regard to that can obtain these information, improve drive safety and driving Experience.

The core devices of wireless connection module 109 be bluetooth module, it is necessary to when head up display 1 pass through bluetooth and intelligent sliding Dynamic terminal 5 connects, and navigation information is pushed to head up display 1 and is shown in 7 front projection of vehicle windscreen by intelligent mobile terminal 5 Show.

During reversing, head up display obtains reversing information by being connected to the astern signal line 3 of astern signal interface 107, Control the backup camera 202 being connected on Video decoding module 102 to obtain the image of rear view of vehicle and project to windshield 7 Front, 8 need of driver, which are eyed to the front, can just obtain reversing information, while can deal with the burst feelings of vehicle front generation at any time Condition, ensure that reversing safety.

When night moves backward, control core 101 opens active illumination switch 106, the LED module with active illumination switch connection 201 light, and illuminate rear view of vehicle reversing region.

Vehicle-mounted head-up-display system in the utility model embodiment can be by speed, engine speed, water temperature, oil consumption, OK Sail the information such as mileage and navigation information is projected in front of front windshield, driver need not bow with regard to that can obtain these letters Breath, improves drive safety and driving experience；During reversing, which, which can project reverse image, keeps out the wind In front of glass, driver, which need to only eye to the front, can just obtain reversing information, while can deal with the burst of vehicle front generation at any time Situation, ensure that reversing safety.

The embodiment of the utility model is described in above content combination attached drawing, but the utility model does not limit to In above-mentioned embodiment, above-mentioned embodiment is only schematical, and nonrestrictive, this area it is general Logical technical staff is not departing from the utility model aims and scope of the claimed protection feelings under the enlightenment of the utility model Under condition, many forms can be also made, these are belonged within the protection of the utility model.

Claims

A kind of 1. vehicle-mounted head-up-display system, it is characterised in that：Including head up display and camera module；

The head up display includes control core, Video decoding module, projection module, luminance adjustment module, intensity collection mould Block, active illumination switch, astern signal interface, OBD interfaces and wireless connection module, the head up display are placed on instrument desk Below top, windshield；

The camera module includes LED module and backup camera, and the camera module is placed in vehicle tail；

The head up display and camera module are electrically connected.
2. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The control core is microcontroller or number Word signal processor.
3. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The core device of the Video decoding module Part is microcontroller or dedicated video decoding chip.
4. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The core devices of the projection module are The controllable display screen of brightness, its display content are controlled by control core and Video decoding module, its display brightness is by brightness regulation mould Block controls.
5. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The core device of the luminance adjustment module Part is LED current control chip, its control signal is provided by control core.
6. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The core device of the intensity collection module Part is photo resistance, photodiode or photistor.
7. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The active illumination switch is opened for optocoupler Close, it controls the light on and off of LED module, its on off state is controlled by control core.
8. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The OBD interfaces pass through wired or nothing The mode of line is connected with vehicle body OBD, and the control core can obtain the real-time speed of vehicle, engine speed, water by OBD interfaces The vehicle body essential information such as temperature, oil consumption, distance travelled.
9. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The wireless connection module passes through bluetooth Or WIFI is connected with intelligent mobile terminal, the navigation information of the intelligent mobile terminal is sent to control core in real time.
10. vehicle-mounted head-up-display system according to claim 1, it is characterised in that：The backup camera for CCD or CMOS, is connected, the LED module provides floor light for it by CVBS with Video decoding module.