CN207670286U - A kind of intelligent vehicle head lamp lighting device based on SFV and DLP - Google Patents
A kind of intelligent vehicle head lamp lighting device based on SFV and DLP Download PDFInfo
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Abstract
The utility model is related to the lighting system field of intelligent control technology of automobile more particularly to a kind of intelligent vehicle head lamp lighting devices based on SFV and DLP, including DLP projection system, free form surface projection lens system and SFV modules；SFV modules are used to export control signal according to the condition of road surface of vehicle front；DLP projection system is used for the control signal that is exported according to SFV modules to adjust the output light type of illumination region；The light type that free form surface projection lens system projects DLP projection system is transformed to the hot spot of rectangle.The utility model SFV modules are according to road ahead state, by the state for controlling each micro-reflector of micro mirror array of dmd chip in DLP projection system, it realizes dipped beam light type, distance light light type and ADB anti-glare light type, solves the problems, such as that the abuse of side's distance light or misuse cause dazzling the eyes for other traffic participants in traffic traveling.
Description
Technical field
The utility model is related to the lighting system field of intelligent control technology of automobile, more particularly to one kind being based on SFV and DLP
Intelligent vehicle head lamp lighting device.
Background technology
With the fast development of society, automobile quantity is increasing, and the traffic safety brought therewith also more induces one to close
Note, especially in night traffic Frequent Accidents.According to statistics, the traffic accident of 70% or more the country was occurred at night, and night
Volume of traffic but less than the 1/3 of total volume of traffic, it is seen that night occur traffic accident probability be far longer than daytime.To find out its cause,
The improper use of distance light causes glare of driver when mainly having the poor light at night, underlit and meeting, and wherein distance light uses
It is improper to have accounted for 40% or so.Therefore, it solves the problems, such as to be dazzle the eyes caused by distance light in driving conditions to improving travel safety and relaxing
Adaptive has very important significance.
DLP (Digital Light Processing) display technology was published by American TI Company in 1994, core
Heart device is DMD (Digital Micro-Mirror Device) chip.DMD is a kind of spatial light modulation device, will be micro- anti-
It penetrates lens array and electricity, machine controller part is integrated on CMOS chip, control turning for each micro-reflector respectively by digital signal
Dynamic state, to control the reflection direction of light, the light to entering optical projection system carries out spatial modulation, realizes realtime graphic life
At function.The deflection angle of common DMD micro mirrors is mostly 10 ° or 12 °.
The operation principle of DMD elements, by taking micro mirror deflects ± 12 ° as an example, there are three each micro mirrors in micro reflector array
State：The flat ＂ states of the ＂ parallel with DMD element planes deflect that+12 ° of ＂ opens ＂ states and the ＂ of -12 ° of deflection closes ＂ states, and at work
Only there is ＂ and opens ＂ states and the passes ＂ ＂ state two states.When being used cooperatively with optical projection system, the normal parallel of DMD planes is in projection
The primary optical axis of system when the illumination light from light source is incident on after relay system on DMD, is incident on each DMD micro mirrors
Light is similar to a light cone, and primary optical axis and DMD plane normal angles are 24 °.When micro mirror, which is in ＂, opens ＂ states, illumination light
Primary optical axis is 12 ° with micro mirror normal angle, and the primary optical axis after micro mirror reflects is parallel to the normal of DMD planes, can enter and throw
The entrance pupil of shadow camera lens, corresponding pixel is illuminated state on projection focal plane；When micro mirror, which is in ＂, closes ＂ states, illumination light and micro mirror normal
Angle is 36 °, and the primary optical axis after reflection and DMD plane normal angles are 48 °, cannot enter the entrance pupil of optical projection system, and projection is burnt
Corresponding pixel is dark-state on face.By carrying out temporal modulation to the open and close state of each micro mirror, it can be achieved that each pixel
Grey scale change, to carry out real time image generation.
Chinese utility model patent application " automobile DMD laser headlamp and means of illumination " (utility application
Number：201610205176 publication numbers：CN 105650572) disclose a kind of automobile DMD laser headlamp and means of illumination, packet
Include green (light) laser, red laser, blue laser, first it is double-colored to filter, second it is double-colored to filter, DMD components,
Reflective mirror, lens, this individual lamps and lanterns or module achieve that the functions such as distance light, dipped beam, meeting delustring, AFS, but should
How technical solution utilizes DLP to realize that a lamp is multi-functional if only addressing only, there is no solve how to identify road ahead situation, nothing
Method realizes the behaviors such as automatic beam change or track holding.
In addition, SFV (Smart Front Vision) is intelligent image identifier, main hardware components are camera,
The picture or video that front is shot by camera carry out image procossing, according to different to obtained picture or video
Characteristic Extraction goes out required information, and in recent years, digital image recognition algorithm development is rapid, and the calculating speed and information of algorithm carry
The accuracy taken is all substantially improved, especially the introducing of depth learning technology so that digital image recognition algorithm has obtained great
It breaks through.A kind of Chinese utility model patent application " automobile lighting system and its car lighting signal dress based on LiFi and DLP
Set " (utility application number：2016105749109 publication numbers：CN 106043104) disclose it is a kind of based on LiFi and
The automobile lighting system and its car lighting signal device of DLP, including LiFi sending assemblies, LiFi receiving units and DLP projections
The running data of this vehicle is sent out, is then passed through using LED main light sources as the transmission light source of LiFi sending assemblies by system
Built-in LiFi receiving units receive the optical signal of opponent vehicle, and decoding obtains the running data of opponent vehicle, then passes through automobile
Bus adjusts dmd chip to control illumination region.The information exchange between vehicle is realized by LiFi technologies, and vehicle may be sent out
Raw accident carries out early warning.The technical solution realizes the information exchange between vehicle using LiFi technologies, although Lifi technologies
Wireless communication rate quickly, can arrive 50Gbps or higher, but Lifi technologies are a kind of middle the short distance wireless communication technologies, communication
Distance is very short, and it is serious to decay；Since Lifi technologies are a kind of optical communication techniques, can be interfered by environment light source, if ambient light
Source is operated in same spectrum frequency range, and when brightness is higher, it is more likely that can not normal communication.Therefore, the utility model patent
The technical solution of application can not realize remote vehicle identification or vehicle interaction, be affected, identified by environmental disturbances
Or the accuracy of communication is relatively low, secondly, which also just cannot achieve track and keeps function,
Finally, which needs one's own side and other side all to assemble LiFi sending assemblies and LiFi receiving units, otherwise can not carry out letter
Breath interaction.
Utility model content
The utility model is related to a kind of intelligent vehicle head lamp lighting devices based on SFV and DLP, are examined by SFV modules
Road ahead situation is surveyed, by controlling the state of each micro-reflector of micro mirror array of dmd chip in DLP projection system, is realized close
Light light type, distance light light type and ADB anti-glare light type, wherein first two light type are used as general lighting function, the latter and SFV
Module cooperation automatically generates anti-dazzle sight, causes other traffic to be joined to solve the abuse of side's distance light or misuse in traffic traveling
Dazzle the eyes problem with person.
In order to realize that the purpose of this utility model, used technical solution be：A kind of automobile intelligence based on SFV and DLP
Energy headlamp lighting device, including DLP projection system, free form surface projection lens system and SFV modules；
SFV modules are used to export control signal according to the condition of road surface of vehicle front；
DLP projection system is used for the control signal that is exported according to SFV modules to adjust the output light type of illumination region；
The light type that free form surface projection lens system projects DLP projection system is transformed to the hot spot of rectangle.
As the prioritization scheme of the utility model, DLP projection system includes light source, TIR lens, plus lens group, DMD
Chip and projection lens set, TIR lens are for collecting the light that light source is sent out, and plus lens group is for focusing TIR lens projects
Light, and the light of focusing is projected to dmd chip, the light reflection of focusing is reached projection by the micro mirror array of dmd chip
Lens group.
As the prioritization scheme of the utility model, projection lens set includes a balsaming lens.
As the prioritization scheme of the utility model, light source is LED or laser.
As the prioritization scheme of the utility model, free form surface projection lens system includes that fixing bracket and free form surface are thrown
Shadow lens, fixing bracket are connected as one with free form surface projecting lens.
As the prioritization scheme of the utility model, infrared laser lighting device is provided in SFV modules.
The utility model has the effect of positive：1) the utility model identifies condition of road surface using SFV modules, uses
DLP projection system can be adjusted by toggle frequency realizes that the tonal gradation of output light type controls, and visual experience is more when making driving
It is comfortable；
2) DLP projection system and car headlamp are effectively combined together by the utility model, realize the more work(of a lamp
Can, thus the functions such as anti-dazzle sight of distance light, dipped beam, ADB lamp can be implemented separately, the structure that can be substantially reduced headlamp is empty
Between, and the resolution ratio of ADB anti-dazzles is high.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the isometric schematic side view of the utility model DLP projection system；
Fig. 2 is the functional schematic of the utility model；
Fig. 3 is the dipped beam schematic diagram of the utility model；
Fig. 4 is the distance light schematic diagram of the utility model；
Fig. 5 is the anti-dazzle sight schematic diagrames of the utility model ADB.
Wherein：1, light source, 2, TIR lens, the 3, first plus lens, the 4, second plus lens, 5, dmd chip, 6, glued
Lens, the 7, first projecting lens, the 8, second projecting lens, 9, free form surface projecting lens, 10, one's own side's vehicle, 11, meeting vehicle
, 12, front vehicles, 13, SFV modules.
Specific implementation mode
As shown in Figs. 1-5, the utility model discloses a kind of intelligent vehicle head lamp lighting device based on SFV and DLP,
Including DLP projection system, free form surface projection lens system and SFV modules 13；
SFV modules 13 are used to export control signal according to the condition of road surface of vehicle front；
DLP projection system is used for the control signal that is exported according to SFV modules 13 to adjust the output light type of illumination region；
The light type that free form surface projection lens system projects DLP projection system is transformed to the hot spot of rectangle.
Wherein, SFV modules 13 calculate the coordinate position of traffic participant according to the condition of road surface of this front side detected
Or upcoming traffic participant is at a distance from this vehicle or lane information, output control signal.SFV modules 13 can be to the driving of vehicle
Situation is evaluated, and both sides track line position is detected by SFV modules 13, is distinguished by the status information of Vehicle Body Bus conscious
Deviation and unconscious deviation, inhibit the alarm of conscious deviation, it is automatic to unconscious deviation
It alarms, predict the danger that may occur and carries out the measures such as the dynamic, deflecting of nonstick system of control, to improve the safety of driving
Property.
DLP projection system includes light source 1, TIR lens 2, plus lens group, DMD chips 5 and projection lens set, TIR saturating
For mirror 2 for collecting the light that light source 1 is sent out, plus lens group is used to focus the light of the projection of TIR lens 2, and by the light of focusing
Line is projected to dmd chip 5, and the light reflection of focusing is reached projection lens set by the micro mirror array of dmd chip 5.In addition, DLP is thrown
Shadow system can also include to correct lens.Wherein, plus lens group includes the first plus lens 3 and the second plus lens 4, will be more
A dmd chip 5 is stitched together, and increases the resolution ratio of DLP projection system, improves the optical efficiency of DLP projection system.
The state of each micro-reflector in micro mirror array by controlling dmd chip 5, realize dipped beam light type, distance light light type and
ADB anti-glare light type realizes output light type by the toggle frequency of each micro-reflector in the micro mirror array of control dmd chip 5
Tonal gradation controls.
Projection lens set includes a balsaming lens 6, and balsaming lens 6 can eliminate dispersive influence to a certain extent.It throws
Shadow lens group includes also the first projecting lens 7 and the second projecting lens 8, in the first projecting lens 7 or the table of the second projecting lens 8
Anti-reflection film is plated in face, can reduce light loss, increases brightness of illumination.
Light source 1 is LED or laser.
Free form surface projection lens system includes fixing bracket and free form surface projecting lens 9, fixing bracket and freely song
Face projecting lens 9 is connected as one.
It is provided with infrared laser lighting device in SFV modules 13, can make SFV modules 13 that can accurately identify voluntarily
The non-active luminous traffic participant such as vehicle, pedestrian, animal.
As shown in Figure 1, emitting beam from light source 1, by TIR lens 2, TIR (Total Internal Reflection)
Total internal reflection lens can collect the light that light source 1 is sent out most possibly, to improve the optics utilization rate of system, then be projected to
Convergent lens group, makes light further focus so that and almost all of light is projected on the micro mirror array in dmd chip 5,
Light reaches projection lens set by the reflection of micro mirror array, light is projected away, the light type projected at this time is not uniform
Rectangular light spot, need finally pass through free form surface projecting lens 9 effect, be projected out rectangular light spot a long way off.
In Fig. 1, the state for controlling each minute cells of micro mirror array in dmd chip 5 may make this intelligent headlamp projection
Go out dipped beam, distance light and ADB anti-glare light type, the anti-glare region in corresponding diagram 3, Fig. 4 and Fig. 5, wherein Fig. 4 is random raw respectively
At, it may be selected in arbitrary region.
In the embodiment shown in Figure 2, SFV modules 13 can be extracted to obtain the position of vehicle by intelligent image recognizer
Set, driver position, speed, travel direction, the running datas such as track line position, for example, one's own side's vehicle 10 utilizes SFV moulds
Camera intake picture in block 13 or video, and it is handled to obtain running data, including meeting vehicle 11 and front
The coordinate position relative to one's own side's vehicle 10 of vehicle 12, and by sending commands to 5 each micro mirror of dmd chip in control figure 1
State so that the region where the driver of meeting vehicle 11 and front vehicles 12 is dimmed, to avoid causing two vehicle drivers dizzy
Mesh.Wherein, in Fig. 2, I, the region that III, V region are illumination, and II, IV is not illuminated, reaches anti-dazzle effect.
Camera intake picture in SFV modules 13 or video, and it is handled to obtain running data, it is especially fast
The driving informations such as information, travel direction, vehicle distances are spent, this vehicle driving condition accident can be judged according to these information,
Early warning, active brake or active deflecting are carried out to imminent accident.
Camera intake picture in SFV modules 13 or video, and extract and obtain own vehicle traveling lane information, travel speed
Whether information, transmits information judge this vehicle just in run-off-road, and are distinguished intentionally by the status information of Vehicle Body Bus
The deviation of knowledge and unconscious deviation, inhibit the alarm of conscious deviation, and to unconscious deviation
Automatically it alarmed, braked or deflecting behavior, improve the safety of driving path.
The working condition of SFV modules is as follows in the technical program：
Camera captured in real-time in SFV modules 13 front side condition of road surface, and pass through the built-in intelligence in SFV modules 13
Energy image recognition algorithm according to different Characteristic Extractions or calculates required information, then passes through local CAN bus and control tune
Save the behaviors such as lighting condition, automobile brake or automobile deflecting.
The working condition of DLP projection system described in the technical program is as follows：
The light that light source 1 in DLP projection system is sent out reduces the dispersion angle of light by gathering for TIR lens 2,
In the effect via convergent lens group so that most light are projected on the micro mirror array of dmd chip 5, and are reflected,
The light type that can be projected afield by projection lens set again, and export at this time is not regular rectangular shape, needs to pass through free form surface again
Projecting lens 9 finally obtains square type hot spot.
DLP technologies are introduced car headlamp design, it can be achieved that a lamp is multi-functional by the technical program, distance light, dipped beam, ADB
Thus the functions such as anti-dazzle sight lamp can be implemented separately, and the resolution ratio of the anti-dazzle sight of ADB is high.
The utility model can be widely applied to the design and production field of car headlamp.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (5)
1. a kind of intelligent vehicle head lamp lighting device based on SFV and DLP, it is characterised in that：Including DLP projection system, certainly
By curved surface projection lens system and SFV modules (13)；
The SFV modules (13) are used to export control signal according to the condition of road surface of vehicle front；
The DLP projection system is used for the control signal that is exported according to SFV modules (13) to adjust the output light of illumination region
Type；
The light type that the free form surface projection lens system projects DLP projection system, is transformed to the hot spot of rectangle；
The DLP projection system includes light source (1), TIR lens (2), plus lens group, dmd chip (5) and projecting lens
Group, the TIR lens (2) are for collecting the light that light source (1) is sent out, and plus lens group is for focusing TIR lens (2) projection
Light, and the light of focusing is projected to dmd chip (5), the light of focusing is reflected by the micro mirror array of dmd chip (5)
Up to projection lens set.
2. a kind of intelligent vehicle head lamp lighting device based on SFV and DLP according to claim 1, it is characterised in that：
The projection lens set includes a balsaming lens (6).
3. a kind of intelligent vehicle head lamp lighting device based on SFV and DLP according to claim 1, it is characterised in that：
The light source (1) is LED or laser.
4. a kind of intelligent vehicle head lamp lighting device based on SFV and DLP according to claim 1, it is characterised in that：
The free form surface projection lens system includes fixing bracket and free form surface projecting lens, the fixing bracket and freedom
Curved surface projection lens are connected as one.
5. a kind of intelligent vehicle head lamp lighting device based on SFV and DLP according to claim 1, it is characterised in that：
It is provided with infrared laser lighting device in the SFV modules (13).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569196A (en) * | 2017-06-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of intelligent vehicle head lamp lighting device based on SFV and DLP |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569196A (en) * | 2017-06-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of intelligent vehicle head lamp lighting device based on SFV and DLP |
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