CN105513564A - Automatic regulation method and system of luminance in car - Google Patents
Automatic regulation method and system of luminance in car Download PDFInfo
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- CN105513564A CN105513564A CN201610012062.3A CN201610012062A CN105513564A CN 105513564 A CN105513564 A CN 105513564A CN 201610012062 A CN201610012062 A CN 201610012062A CN 105513564 A CN105513564 A CN 105513564A
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The invention discloses an automatic regulation method and system of luminance in a car. The automatic regulation method comprises the following steps: detecting the illumination luminance in the car, and collecting to obtain a light intensity signal according to the illumination luminance to carry out automatic regulation; setting user preference, and setting luminance reference according to the user preference to carry out automatic regulation, wherein the automatic regulation acts on external display or internal temperature regulation. The automatic regulation system comprises an acquisition unit, a user preference unit, an automatic regulation unit and a display unit. According to the automatic regulation method, the automatic regulation of the luminance can be realized, and an HUD (Head Up Display) screen can automatically regulate the luminance of the screen through light induction of daytime and night.
Description
Technical field
The present invention relates to vehicle electronics field, particularly automatic brightness adjustment method and system in car.
Background technology
HUD HUD (HeadUpDisplay) is the flight supplementary instrument generally used on aircraft.The meaning come back refers to that pilot does not need to bow the important information just can seeing that he needs.Because the convenience of HUD and can improve flight safety, airliner also follows up installation one after another.HUD is the principle utilizing optical reflection, important flight relevent information is incident upon above a sheet glass.This what passenger cabin front end, sheet glass position, highly roughly becomes level with the eyes of pilot, and the word of projection and image adjustment, on the distance of focal length infinity, time pilot sees toward front through HUD, can not hamper the running of eyes, maintain and show clearly.
The basic framework of HUD comprises two parts: data processing unit and image display.Data processing unit is by the Hou of the data conformity process of system each on aircraft, and according to the symbol that the patten transformation selected becomes to preset, figure or the kenel with word or numeral export.Signal process and image output are divided into two devices by some product, but are all similar working method haply.Image display is just mounted in passenger cabin front, between pilot and canopy spatially.Image display receives the information from data processing device, is incident upon above glass.Display device and with control panel, can reconcile or change the image of output.
The improvement of HUD in image display of a new generation comprises employing full figure photography (Holographic) display mode, expand the scope of show image, especially the field-of-view angle in increase level, reduce the thickness of support to the restriction in the what visual field and impact, the display strengthened under different luminosity and external environment adjusts, the sharpness of strengthening image, what export with other optical images coordinates, for example the aircraft forward image that infrared image video camera produces directly can be projected on HUD, show with other data fusion, coordinate the use of night vision goggles and adopt chromatic image display data.Improvement on data processing unit comprises the speed and efficiency that improve process, and HUD is by image projection in the stationary installation in passenger cabin front, and when pilot's rotation head time, these images will his field range away from keyboard.The HUD of a new generation is more suitable for being used on automobile widely.
In the intrinsic notion of people, what driving should be focused on is safety naturally, but popularizing along with smart mobile phone, cellphone subscribers do not rely on the facility of mobile phone belt all the time with quick.The real-time communication of phone, note, micro-letter, multimedia use, digital map navigation instrument etc. these, but in " race of bowing " increasing today, mobile phone belt but have impact on the security of driving to our facility greatly.The traffic hazard of various ways is all because car owner causes owing to using mobile phone in driving procedure.Automobile vendors come to realise the importance of middle control screen, add vehicle as maximum terminal device, more allow this block " screen " on car become place contested by all strategists.But the existence of vehicle-mounted middle control screen really to allow driving variable obtain safer, but in real experiences, still have the every drawback on vehicle-mounted middle control screen and inconvenient part, still can allow driver distraction.
But during owing to driving, in car, light environment is very complicated: in different weather situation, daytime, sunlight was very bright, and new line display device does not see with the brightness of ordinary screen; Wanting dark at night in car, require that again the brightness adjustment of new line display device is to minimum, reducing the interference to driving.And also can there is light change frequently in driving procedure.Like this because wide round change various in car is alternately frequent, if adopt manual adjustments mode very inconvenient and affect traffic safety.
Summary of the invention
The technical problem to be solved in the present invention is, environmentally luminance brightness regulates the display brightness of new line display device automatically, by the light sensing at night on daytime, allows HUD display screen can adjusting screen brightness automatically, brings the experience of reality that driver is the most intimate.
Solve the problems of the technologies described above, the present invention proposes a kind of automatic brightness adjustment method in car, comprise the following steps:
Illumination brightness in inspection vehicle,
Collect light intensity signal according to above-mentioned illumination brightness and carry out self-regulation;
User preference is set,
Brightness preference is set according to above-mentioned user preference and carries out self-regulation;
Above-mentioned self-regulation effect regulates in outside display or internal temperature.
Above-mentioned self-regulation also comprises auxiliary hand-operating and regulates brightness,
Carry out luminance parameter setting by first user, set up the first backup according to the luminance parameter that first user is arranged;
Carry out luminance parameter setting by the second user, set up the second backup according to the luminance parameter that the second user is arranged;
When carrying out self-regulation, directly call the first backup or the second backup, the first above-mentioned backup and person second backup are stored in this locality or far-end.
Described luminance parameter arranges and comprises: arrange colourity, brightness, contrast, time delay transformation period or luminous sensitivity.
The method that described internal temperature regulates comprises:
According in car, outside car, temperature detects, if fruit detects exceed default threshold value, then start to carry out temperature adjustment according to above-mentioned user preference,
Or, start to carry out temperature adjustment according to illumination brightness in above-mentioned car,
Or, reduce operate power,
Above-mentioned operate power is the operate power of car-mounted device in car.
Described outside display packing comprises:
When natural time is 0 ~ 12am, according to outside display, self-regulation is carried out to light;
When natural time is 1 ~ 12pm, according to outside display, self-regulation is carried out to light;
Above-mentioned mode is driver's manual operation;
Or, when natural time is 0 ~ 12am, in conjunction with arranging user preference, self-regulation is carried out to light;
Or, when natural time is 0 ~ 12am, in conjunction with illumination brightness in inspection vehicle, self-regulation is carried out to light;
Or, when natural time is 1 ~ 12pm, in conjunction with illumination brightness in inspection vehicle, self-regulation is carried out to light;
Or, when natural time is 1 ~ 12pm, in conjunction with arranging user preference, self-regulation is carried out to light; Above-mentioned self-regulation is the brightness of mobile unit screen display.
Additionally provide the automatic adjusting system of brightness in a kind of car in the present invention, comprising:
Collecting unit, in order to illumination brightness in inspection vehicle,
User preference unit, in order to arrange user preference,
Self-regulation unit, carries out self-regulation in order to collect light intensity signal according to above-mentioned illumination brightness; Self-regulation is carried out in order to arrange brightness preference according to above-mentioned user preference;
Display unit, for showing self-regulation brightness.
Described collecting unit comprises at least one light sensor, described light sensor is electrically connected with the mobile unit in car, described light sensor is also connected with at least one infrared camera, recognition of face is carried out for coordinating above-mentioned infrared camera, described light sensor is also connected with a near-infrared LED, open lower than during threshold value at light intensity for controlling described near-infrared LED, above-mentioned mobile unit is HUB.
Described user preference unit, is electrically connected with the mobile unit in car,
Carry out luminance parameter setting by first user, set up the first backup according to the luminance parameter that first user is arranged;
Carry out luminance parameter setting by the second user, set up the second backup according to the luminance parameter that the second user is arranged;
When carrying out self-regulation, directly call the first backup or the second backup, the first above-mentioned backup and person second backup are stored in this locality or far-end; Above-mentioned first user, the second user are by Intelligent sliding moved end and described mobile unit wireless connections; Above-mentioned Intelligent sliding moved end comprises: smart mobile phone, panel computer, PDA; Above-mentioned wireless connections are that bluetooth connects.
Described self-regulation unit is connected with described light sensor, after receiving the light intensity signal that light sensor collects, directly controlling the brightness on display unit;
Or, after receiving the light intensity signal that light sensor collects, jointly carry out judging to regulate brightness on described display unit with the user's luminance parameter in user preference unit.
Described display unit comprises a LCDs, automatically regulates result for showing, and screen intensity is carried out Real-time Feedback according to the signal of self-regulation unit.
Beneficial effect of the present invention:
1) automatic brightness adjustment method in the car in the present invention, by illumination brightness in inspection vehicle, collects light intensity signal according to above-mentioned illumination brightness and carries out self-regulation; By arranging user preference, brightness preference can also be set according to above-mentioned user preference and carry out self-regulation; Above-mentioned self-regulation effect regulates in outside display or internal temperature.Can automatic brightness adjustment be realized, by the light sensing at night on daytime, allow HUD display screen can adjusting screen brightness automatically.
2) regulative mode based on time and user habit is adopted in the present invention, can in conjunction with arranging user preference when adjusting screen brightness, or the mode manually operated regulates.
3) the automatic adjusting system of brightness in the car in the present invention, owing to being provided with collecting unit, in order to illumination brightness in inspection vehicle, user preference unit, in order to arrange user preference, self-regulation unit, carries out self-regulation in order to collect light intensity signal according to above-mentioned illumination brightness; Self-regulation is carried out in order to arrange brightness preference according to above-mentioned user preference; Display unit, for showing self-regulation brightness.User can realize adjustment and user's user personality automatically by the automatic adjusting system of brightness in car and arrange combination adjustment.
Accompanying drawing explanation
Fig. 1 is automatic brightness adjustment method realization flow figure in the car according to an embodiment of the present invention.
Fig. 2 illustrates according to self-regulation particular flow sheet in automatic brightness adjustment method in an embodiment of the present invention car.
Fig. 3 illustrates that in Fig. 1, luminance parameter arranges schematic diagram.
Fig. 4 illustrates the schematic flow sheet of inner temperature regulating method in Fig. 1.
Fig. 5 illustrates the schematic flow sheet of Fig. 1 peripheral display packing.
Fig. 6 is the structural representation of the automatic adjusting system of brightness in the car according to an embodiment of the present invention.
Fig. 7 illustrates the structural representation of a kind of embodiment in Fig. 6.
Fig. 8 illustrates the structural representation of another kind of embodiment in Fig. 6.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Please refer to Fig. 1, is automatic brightness adjustment method realization flow figure in the car according to an embodiment of the present invention.
Automatic brightness adjustment method in car in the present embodiment, from step S101,
Illumination brightness in step S102 inspection vehicle, those skilled in the art can understand, because the light environment in car is very complicated: different weather situation, daytime, night, cloudy day, fine day, in the very bright car of sunlight on daytime, light is comparatively strong under normal circumstances, and dark in night car.In inspection vehicle during illumination brightness, need to consider in conjunction with the environment in car and the environmental factor outside car.Such as, the threshold value reducing photoresistance is needed time by day, illumination brightness in inspection vehicle, can be considered ultraviolet illumination simultaneously and to the illumination brightness in car, finally be shown on HUD display module by windshield incidence (reflection, refraction).
Step S103 collects light intensity signal according to above-mentioned illumination brightness and carries out self-regulation, collect illumination brightness by sensor and obtain light intensity signal, photoresistance can be adopted, those skilled in the art can understand, described photoresistance can based on inner photoeffect, contact conductor is loaded onto at two ends in the photoresistance be made up of semiconductor photosensitive material, be encapsulated in the shell with transparency window and just form photoresistance, simultaneously in order to increase its sensitivity, two electrodes often make pectination.For the manufacture of sulfide, the semiconductor such as selenide and telluride of the material mainly metal of photoresistance.The methods such as usual employing coating, spraying, sintering make very thin photoresistance body and pectination Ohmic electrode on an insulating substrate, pick out lead-in wire, are encapsulated in and have in the seal casinghousing of transmissive mirror, affect its sensitivity in order to avoid make moist.
Preferred as in the present embodiment, adopt DLP technology, make to use together with any light source in HUD, namely described photoresistance can make full use of reliable light emitting diode (LED).
In use, the resistance value of photoresistance in car in dark surrounds is very high, when being subject to illumination, as long as photon energy is greater than the energy gap of semiconductor material, can conduction band be transitted to after the energy of the Electron absorption photon then in valence band, and the hole that generation one is positively charged in valence band, the number of charge carrier in this right semiconductor material in electronics-hole produced by illumination, its resistivity is diminished, thus causes photoresistance resistance to decline.If illumination is stronger, then resistance is lower.
During night, cause when the light in car dies down the resistance of photoresistance to increase, make the dividing potential drop be added on the electric capacity C in photoresistance light adjusting circuit increase, and then silicon controlled conduction angle is increased, reach the object increasing illuminating lamp both end voltage.Otherwise during daytime, the light of Ruo Chenei brightens, then the resistance of photoresistance declines, and cause silicon controlled conduction angle to diminish, illuminating lamp both end voltage also declines simultaneously, makes body light light dimmed, thus realizes the control to lamp illuminance.Further, the DC pulse moving voltage that what in described photoresistance light adjusting circuit, rectifier bridge provided is in car, can be energized with cigar lighter socket and be connected.
Step S104 arranges user preference, can include but not limited to: for the demand of different time sections to light intensity, and the demand to light intensity when driving same automobile for different user, described different user comprises the driver of more than at least two.
Step S105 arranges brightness preference according to above-mentioned user preference and carries out self-regulation, according to the luminance parameter that described user preference is arranged, self-regulation is carried out to light in car, described luminance parameter is along with trigger event, and described trigger event includes but not limited to: OR night on daytime, cloudy OR fine day, the OR that gets on the bus gets off, windshield cleans OR windshield spot, shakes under side vehicle window shaking OR, the printing opacity degree of windshield projection complexity, side vehicle window.Such as, at the cloudy day of 10:00am by day, the automobile side vehicle window that driver drives shakes, and windshield projection complexity is high, then according to the luminance parameter stating user preference setting, then in conjunction with above-mentioned scene, carry out self-regulation to light in car.
The above-mentioned self-regulation effect of step S106 regulates in outside display or internal temperature, the display of described outside includes but not limited to: shown self-regulating parameter by vehicle-mounted instrument, described internal temperature regulates and includes but not limited to: according to the temperature in the self-regulation degree adjusted in concert car of light, owing to considering heating power when vehicle-mounted instrument works, so can by regulating vehicle-mounted instrument and then regulating temperature.Described vehicle-mounted instrument includes but not limited to: HUD.Such as, navigation index and real-time terrestrial reference details (in the depth of field of 2 meters to 20 meters, front) can be presented in pilot's line of vision by described HUD, contribute to driver and concentrate one's energy to pay close attention to road conditions.
Provide a kind of automatic brightness adjustment method in car in the present embodiment, based on HUD, can comprise the steps:
In step S102 by being arranged on illumination brightness in the photoresistance inspection vehicle in described HUD, collect light intensity signal according to above-mentioned illumination brightness in step s 103 and carry out self-regulation, self-regulation is carried out after can being processed by light intensity signal by photoresistance light adjusting circuit, in step S104, user preference is set by the different demands of different driver to light, step S105 arranges brightness preference according to above-mentioned user preference and carries out light self-regulation in car, the above-mentioned self-regulation effect of step S106 shows on the display module of HUD, or reduce temperature in car by reducing the power of HUD.
Please refer to Fig. 2, illustrate according to self-regulation particular flow sheet in automatic brightness adjustment method in an embodiment of the present invention car.
Step S201 carries out luminance parameter setting by first user, sets up the first backup according to the luminance parameter that first user is arranged.The luminance parameter that described first user is arranged comprise based on the time, action of getting on or off the bus based on driver, based on eyesight degree, based on gender differences.Such as, the first backup be made up of light sensor and body light optical assembly, when before engine start, directly to call the brightness in car according to ambient light situation and adjusts, be in optimum condition to make brightness in car.Again such as, the first backup be made up of the oxygen concentration sensor of light sensor and Che Nei oxygen concentration, when oxygen concentration is lower in car, is regulated the height of vehicle window, thus increases the oxygen level in car by light sensor.
Step S202 carries out luminance parameter setting by the second user, sets up the second backup according to the luminance parameter that the second user is arranged.Same, the luminance parameter that described first user is arranged comprise based on the time, action of getting on or off the bus based on driver, based on eyesight degree, based on gender differences.Such as, the second backup be made up of light sensor and vehicle interior temperature adjusting part, when the vehicle is running, regulates the temperature in car according to ambient light situation, is suitable for make vehicle interior temperature.Again such as, the second backup be made up of light sensor and car sky window assembly, can give full play to the effect in skylight, improves comfortableness and the security of automobile.When the vehicle is running, described light sensor is by brightness in inspection vehicle, make described sky window assembly have manual control pattern and intelligent control mode, under this intelligent control mode, sky window assembly controls this body action of skylight automatically according to the information of vehicle-state environment measuring parts.
Step S203, when carrying out self-regulation, directly calls the first backup or the second backup, and the first above-mentioned backup and person second backup are stored in this locality or far-end.Back up by described first or the second backup, can directly arrange environment inside car.Described first backup or the second backup are stored in this locality and refer to, be stored in the internal memory of HUD, described far-end includes but not limited to; Be uploaded to cloud server by wireless network or upload from node server by wireless network, accepting the call instruction center service from node server again.
Fig. 3 illustrates that in Fig. 1, luminance parameter arranges schematic diagram.
In the present embodiment, luminance parameter arranges 301, comprises and arranges colourity, brightness, contrast, time delay transformation period or luminous sensitivity.Although described colourity is only an aesthetic index, but extremely have influence on user's impression of driver, so tone and the saturation degree of Show Color can be reflected in the colourity of HUD display module.Described brightness is also the key factor of HUD display module, and detected by brightness in aforesaid car, the brightness of the testing result obtained to HUD display module regulates.Described HUD display module is set to radiation shield, and this radiation shield is the optical lens that two sides has identical curvature, and the reflectivity of intrados plated film is higher than the reflectivity of extrados plated film.The reflectivity of the intrados of described radiation shield is 30%, the reflectivity 1% of extrados, ensures that driver looks out for the car the outer normal images having 70% transmittance, meanwhile, described intrados has the light reflection of 30% to driver's eyes.
Described contrast, wherein sharp is DigitalFineContrast than (DFC) full name, is a kind of specially for the optimisation technique of contrast.This technology forms primarily of three parts, ACR (AutoContentsRecognition respectively, namely automatically identify), DCE (DigitalContrastEnhancer, namely numeral strengthens contrast) and DCM (DigitalContrastMapper, namely numeral contrast maps).In use, described ACR can detect the parameters of the display, intensity information number etc. inputted from the processor HUD automatically, and then regulates and optimize the contrast of HUD display module; And significantly can reduce most black luminance by DCE, and the bright-coloured degree of color range in the middle of effectively regulating, thus reach the effect optimizing display; Further, DCM then can judge whether contrast reaches optimization and carry out picture structure adjusting and display.Described time delay transformation period, can according to vehicle when advancing the conversion that is refracted in car by windshield of the environment of process initial-mistiming of cut-off, calculate time delay transformation period, also just say, when car external environment changes and has influence on intensity of illumination in car, the reacting condition speed degree on HUD display module.Described luminous sensitivity, has relation with the material of HUD display module, such as reflectivity, transmittance, can ensure the sensitivity of HUD display module.
In the present embodiment, by preferred for HUD display module integrated Texas Instrument DLP display control chip, and DMD optical projection module.The visual angle of Texas Instrument (TI) is the widest in the present embodiment reaches 12 °.
Particularly, the DLP3000-Q1 chipset adopted includes WVGA Digital Micromirror Device (DMD) and the DLPC120 controller of DLP0.3 inch, what the widest visual field of industry was supported in the dirigibility of DLP3000-Q1 looks squarely indication range, can support the wide visual field reaching 12 °, visual angle.Particularly, the dmd chip in described DMD optical projection module, in order to be mixed through the primaries come by colour wheel, and is converted to coloured image by Data Control.Described DMD is a kind of micro electronmechanical superstructure circuit unit of integration, utilizes made by COMSSRAM memory cell.The structure of described DMD optical projection module dmd chip comprises: electronic circuit, machinery and optics three aspects.Wherein electronic circuitry part is control circuit, and mechanical part is the structure division controlling eyeglass rotation, and optic part is optic portion.
Please refer to Fig. 4, the schematic flow sheet of inner temperature regulating method in Fig. 1 is shown.
Step S401 is according in car, outside car, temperature detects, and for reference only, the outer temperature of such as car lower than subzero, then judge that the outer temperature of car is lower, can regulate the temperature in car the outer temperature of described car.Described vehicle interior temperature is amplitude fluctuation with body temperature scope up and down.
Whether step S402 exceedes default threshold value, and described threshold value comprises the temperature in car or the temperature outside car.
If step S403 detects exceed default threshold value, then start to carry out temperature adjustment according to above-mentioned user preference, such as user preference is vehicle interior temperature is 20 ° ~ 40 °, if the result detected has exceeded the threshold value preset, then the temperature in car is regulated, the mode regulated includes but not limited to: opening vehicle skylight, open car side window, or the wind pushing temperature of air-conditioning in manual adjustments car.
Or enter step S404 to start to carry out temperature adjustment according to illumination brightness in above-mentioned car, the regulative mode of illumination brightness in described car can intelligently according to the change of intensity of illumination, simulate daytime or night, rainy day or fine day, the cloudy operation scenario still having sunlight, according to operation scenario, under can different situations being realized, to the adjustment of vehicle interior temperature.
Or enter step S405 and reduce operate power, described operate power is the operate power of car-mounted device in car, by reducing operate power, can the brightness of dynamic conditioning HUD equipment projection light machine, thus play the function of screen display brightness regulation.
Please refer to Fig. 5, the schematic flow sheet of Fig. 1 peripheral display packing is shown.
Step S501 is when natural time is 0 ~ 12am, according to outside display, self-regulation is carried out to light, by being arranged on "+" "-" button on HUD shell, adjusted in concert can be carried out by physical operations to the colourity of described HUD display module, brightness, contrast, time delay transformation period or luminous sensitivity; Described "+" "-" button includes but not limited to center of circle button, square button and upper and lower concavo-convex button.Such as, fine day, within the 10am-11am time period, because illumination brightness is higher, so light sensor illumination is stronger, then resistance is lower, and illumination is more weak, then resistance is higher.
Step S502 is when natural time is 1 ~ 12pm, and carry out self-regulation according to outside display to light, such as, fine day, within the 1pm-2pm time period, because illumination brightness is lower, so light sensor illumination is higher.
Above-mentioned mode is driver's manual operation.
Or, entering step S503 when natural time is 0 ~ 12am, in conjunction with arranging user preference, self-regulation being carried out to light, described self-regulation can be, as 0 ~ 6am, HUD is set to dormant state, as 6am ~ 8am, now available light is better, need regulating degree less, by combining, user preference is set, light in car is regulated, act on after having regulated on the display module of HUD, as 8am ~ 10am, now available light is fine, substantially do not need to regulate, by combining, user preference is set, light in car is regulated, act on after having regulated on the display module of HUD, as 10am ~ 8am, now available light is better, substantially do not need regulate but easily cause the reflective of display module, thus the operation of driver can be had influence on, so arrange user preference by combination, need to regulate the light in car, in order to be suitable for reflectivity and the refractive index of the display module of HUD.Such as, the intrados on the display module of HUD has the light reflection of 50% to driver's eyes, then driving can be higher due to emissivity, and causes larger reflected light.Intrados such as on the display module of HUD only has 55% transmittance, then driver through the display module of HUD, cannot see front vehicles normal images clearly.
Or, enter step S504 when natural time is 0 ~ 12am, in conjunction with illumination brightness in inspection vehicle, self-regulation carried out to light; By being the segmentation of 0 ~ 12am to natural time, according to illumination brightness case in the car of reality, can regulate to the light in car.Certainly, those skilled in the art can understand, described regulative mode can be self-regulating mode, illumination brightness degree in the car that such as 0-6am, 8-10am, 10-12am are corresponding basic, normal, high respectively, by the detection to local zone time, accurate natural time can be obtained, and contrast illumination brightness degree in car, the intensity of illumination in car is regulated.
Or, enter step S505 when natural time is 1 ~ 12pm, in conjunction with illumination brightness in inspection vehicle, self-regulation carried out to light;
Or, entering step S506 when natural time is 1 ~ 12pm, in conjunction with arranging user preference, self-regulation being carried out to light;
In the present embodiment, above-mentioned self-regulation is the brightness of mobile unit screen display, described mobile unit includes but not limited to HUD, and the mode regulated also is not limited to: the adjustment to LED, the adjustment to micro projector, to the adjustment at the angle of inclination of HUD display module and the adjustment to light angle in HUD.Such as, light sensor comprises: light activated element, amplifier and A/D converter and MCU processor, the signal that this light activated element can be connected receiving with the input end of amplifier amplifies, the input end of the output termination A/D converter of amplifier, the simulating signal of reception is changed into digital signal and passes through to export the input end of termination MCU processor by A/D converter, MCU processor processes reception data-signal and changes into for the screen backlight brightness in control HUD display module, can be the adjustment carrying out backlight illumination by controlling pwm signal.
Please refer to Fig. 6, is the structural representation of the automatic adjusting system of brightness in the car according to an embodiment of the present invention.
The automatic adjusting system of brightness in car in the present embodiment, for the regulative mode of intelligent vehicle-carried HUD, wherein HUD includes following primary structure:
Collecting unit 601, in order to illumination brightness in inspection vehicle, the mode that described collecting unit 601 collects illumination brightness in car includes but not limited to: obtain the luminance signal in car by light sensation resistance, and luminance signal is converted into corresponding electric signal, enters into the processor of HUD.
Described processor preferably adopts: ARM4 core CPU, internal memory 1GRAM, and described processor is stored in inner pre-set program in advance by performing, and control HUD performs the function of various necessity.Particularly, when the control interface of processor reads the information inputted by various interface, the road surface identification of the state of vehicle and image recognition identification as the information of the transport information preset, or compares to record its comparative result and as transport information by the record of processor.Such as, processor reads each special time (such as, 0.5 second) speed, engine revolution etc. that obtain, and generate and correspond to such as time of vehicle operation, operating range, top speed, average velocity, hypervelocity time, hypervelocity number of times, engine revolution overtime, revolution exceed number of times, suddenly to start, suddenly to accelerate, suddenly to slow down and the file of transport information of free time etc., and this file is stored in storer.
Described storer is the storer constructed by ROM, includes but not limited to: the storer constructed by SDRAM and the storer constructed by EEPROM are connected to processor.Storer stores the constant data such as used by the program performed or various controlled unit in advance.The storer of SDRAM structure is for storing the ephemeral data of the data in such as process.The data of the various constants of reference in the storer storage of processor of EEPROM structure.Because the storer of EEPROM structure is nonvolatile memory, even if under its state of power supply stopping being in power supply, also can data be preserved.If needed, the content being stored in the data in the storer of EEPROM structure can be rewritten.
Self-regulation unit 602, carries out self-regulation in order to collect light intensity signal according to above-mentioned illumination brightness; Self-regulation is carried out in order to arrange brightness preference according to above-mentioned user preference.Described self-regulation unit 602 can comprise: the minimum system of single-chip microcomputer, A/D converting unit, detecting unit, display unit, push-button unit and driver element,
The minimum system of described single-chip microcomputer can be connected with A/D converting unit, detecting unit, display unit, push-button unit, detecting unit and driver element respectively, in order to control for above-mentioned operating unit.Wherein said detecting unit has sensor detection arrays and signal processor, light intensity sensor and the outer light intensity sensor of car in the car that described sensor detection arrays comprises for gathering light intensity value, signal processing unit is wherein used for carrying out filtering and signal amplification process to the light intensity that sensor detection arrays collects, the simulating signal that described A/D converting unit is used for the light intensity exported by signal processing unit converts digital signal to, described push-button unit is used for driver's input: light intensity regulated value or the model selection according to illumination brightness in user preference light intensity regulated value or inspection vehicle under manual mode, described display unit is used for display light intensity level, the control information that described driver element is used for the information process unit in the minimum system of single-chip microcomputer to send drives lighting circuit work.
User preference unit 603, in order to arrange user preference, user can sign in HUD by external unit, such as opens the function that micro-letter " is swept and swept ", and the Quick Response Code in scanning HUD display module, can sign in HUD by Intelligent sliding moved end.Meanwhile, can carry out user preference setting in HUD, the preference of user arranges and comprises: the operating habit of user to vehicle and the setting to vehicle-state, and preference is arranged based on independent trigger event or multiple trigger event.
To the operating habit table of vehicle
Display unit 604, for showing self-regulation brightness, described self-regulation brightness is the brightness self-regulation mode in HUD display module.
Preferred as in the present embodiment, it is 15 that described HUD can produce brightness, 000 candela/square metre (cd/m2), dynamic light adjustment scope is 5,000:1, completely open and close contrast (FOFO) is greater than the colour gamut that 1,000:1 and 125% NTSC (NTSC) specify.And influence of temperature change can not be subject to, and under any viewing scene, all can present image clearly within vehicle general serviceable life.
Please refer to Fig. 7, the structural representation of a kind of embodiment in Fig. 6 is shown.
In the present embodiment based on the automatic adjusting system of brightness in the car of HUD, comprise: user preference unit 603, self-regulation unit 602, described collecting unit 601 comprises: multiple light sensor 701, described collecting unit 601 is also connected with HUD702, further comprises in collecting unit 601: outer red camera and near-infrared LED.Described collecting unit 601 for the ease of gathering, near the instrument desk that can be placed in described vehicle or on the emplacing platform of air-conditioning.Multiple light sensor 701 is included in collecting unit 601, can intensity of illumination in real time in inspection vehicle or outside car, not only need to consider and reflect intensity of illumination into the car by deep bead, and need when the evening draws on, monitoring environment light in time, if when illumination is not enough, needs to adopt near-infrared LED to compensate illumination and penetrate.In addition, have employed DLP technology due in HUD702 in the present embodiment, make the display module of HUD702 without the need to polarisation of light, even if make driver wear head-up display that polarized light sunglasses also can see content.
Fig. 8 illustrates the structural representation of another kind of embodiment in Fig. 6.
In the present embodiment, comprise based on the automatic adjusting system of brightness in the car of HUD: carry out the smart mobile phone 801, panel computer 802 and the PDA803 that are connected respectively with HUD702, also comprise the user preference unit 603 be connected with HUD702.Described HUD702 can provide ad-hoc network in car, can realize online by the online network interface card installing operator in HUD702.MANET in described car is the network in order to the communications of intelligent movable port such as smart mobile phone 801, panel computer 802 and PDA803 to be combined with the network of HUD.Wherein in car, the message exchange of ad-hoc network adopts the packet switch mechanism in the network of HUD, and in MANET, each user terminal has router and main frame two kinds of functions concurrently.
If as main frame, need to run various user oriented application program, as editing machine, browser etc. in terminal (HUD or Intelligent sliding moved end); If as router, then terminal (HUD or Intelligent sliding moved end) needs to run corresponding Routing Protocol, completes forwarding and the route maintenance work of packet, therefore require that node realizes suitable Routing Protocol according to routing policy and routing table.In this car, MANET is by reducing the expense of Routing Protocol, to meet the restriction of the aspects such as mobile terminal computing power, storage area and power supply.
Those of ordinary skill in the field are to be understood that: more than; describedly be only specific embodiments of the invention, be not limited to the present invention, within the spirit and principles in the present invention all; any amendment of making, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automatic brightness adjustment method in car, is characterized in that, comprise the following steps:
Illumination brightness in inspection vehicle,
Collect light intensity signal according to above-mentioned illumination brightness and carry out self-regulation;
User preference is set,
Brightness preference is set according to above-mentioned user preference and carries out self-regulation;
Above-mentioned self-regulation effect regulates in outside display or internal temperature.
2. automatic brightness adjustment method in car according to claim 1, is characterized in that, above-mentioned self-regulation comprises,
Carry out luminance parameter setting by first user, set up the first backup according to the luminance parameter that first user is arranged;
Carry out luminance parameter setting by the second user, set up the second backup according to the luminance parameter that the second user is arranged;
When carrying out self-regulation, directly call the first backup or the second backup, the first above-mentioned backup and person second backup are stored in this locality or far-end.
3. automatic brightness adjustment method in car according to claim 2, is characterized in that, described luminance parameter arranges and comprises: arrange colourity, brightness, contrast, time delay transformation period or luminous sensitivity.
4. automatic brightness adjustment method in car according to claim 1, is characterized in that, the method that described internal temperature regulates comprises:
According in car, outside car, temperature detects, exceed default threshold value if detect, then start to carry out temperature adjustment according to above-mentioned user preference,
Or, start to carry out temperature adjustment according to illumination brightness in above-mentioned car,
Or, reduce operate power,
Above-mentioned operate power is the operate power of car-mounted device in car.
5. in the car according to claim 1 or 4, automatic brightness adjustment method, is characterized in that, described outside display packing comprises:
When natural time is 0 ~ 12am, according to outside display, self-regulation is carried out to light;
When natural time is 1 ~ 12pm, according to outside display, self-regulation is carried out to light;
Above-mentioned mode is driver's manual operation;
Or, when natural time is 0 ~ 12am, in conjunction with arranging user preference, self-regulation is carried out to light;
Or, when natural time is 0 ~ 12am, in conjunction with illumination brightness in inspection vehicle, self-regulation is carried out to light;
Or, when natural time is 1 ~ 12pm, in conjunction with illumination brightness in inspection vehicle, self-regulation is carried out to light;
Or, when natural time is 1 ~ 12pm, in conjunction with arranging user preference, self-regulation is carried out to light;
Above-mentioned self-regulation is the brightness of mobile unit screen display.
6. the automatic adjusting system of brightness in car, is characterized in that comprising:
Collecting unit, in order to illumination brightness in inspection vehicle,
User preference unit, in order to arrange user preference,
Self-regulation unit, carries out self-regulation in order to collect light intensity signal according to above-mentioned illumination brightness; Self-regulation is carried out in order to arrange brightness preference according to above-mentioned user preference;
Display unit, for showing self-regulation brightness.
7. the automatic adjusting system of brightness in car according to claim 6, it is characterized in that, described collecting unit comprises at least one light sensor, described light sensor is electrically connected with the mobile unit in car, described light sensor is also connected with at least one infrared camera, and for coordinating above-mentioned infrared camera to carry out recognition of face, described light sensor is also connected with a near-infrared LED, open lower than during threshold value at light intensity for controlling described near-infrared LED
Above-mentioned mobile unit is HUB.
8. the automatic adjusting system of brightness in car according to claim 6, is characterized in that, described user preference unit, is electrically connected with the mobile unit in car,
Carry out luminance parameter setting by first user, set up the first backup according to the luminance parameter that first user is arranged;
Carry out luminance parameter setting by the second user, set up the second backup according to the luminance parameter that the second user is arranged;
When carrying out self-regulation, directly call the first backup or the second backup, the first above-mentioned backup and person second backup are stored in this locality or far-end;
Above-mentioned first user, the second user are by Intelligent sliding moved end and described mobile unit wireless connections;
Above-mentioned Intelligent sliding moved end comprises: smart mobile phone, panel computer, PDA;
Above-mentioned wireless connections are that bluetooth connects.
9. the automatic adjusting system of brightness in car according to claim 7, is characterized in that, described self-regulation unit is connected with described light sensor, after receiving the light intensity signal that light sensor collects, directly controlling the brightness on display unit;
Or, after receiving the light intensity signal that light sensor collects, jointly carry out judging to regulate brightness on described display unit with the user's luminance parameter in user preference unit.
10. the automatic adjusting system of brightness in car according to claim 6, it is characterized in that, described display unit comprises a LCDs, automatically regulates result for showing, and screen intensity is carried out Real-time Feedback according to the signal of self-regulation unit.
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