CN103744258B - A kind of head-up display method and system - Google Patents
A kind of head-up display method and system Download PDFInfo
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- CN103744258B CN103744258B CN201410023182.4A CN201410023182A CN103744258B CN 103744258 B CN103744258 B CN 103744258B CN 201410023182 A CN201410023182 A CN 201410023182A CN 103744258 B CN103744258 B CN 103744258B
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- micro projector
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Abstract
The present invention is applicable to electronic display technology field, provides a kind of head-up display method and system, comprising: the brightness of acquisition environment light; The environmentally brightness of light, the luminous flux controlling more than 1 micro projector exports, and described micro projector adopts LASER Light Source; Receive running information, described running information is transferred to described more than 1 micro projector, make micro projector by described running information projection on the windshield.The luminous flux that the present invention controls more than 1 micro projector by the brightness of environmentally light exports, the luminous flux of more than 1 micro projector is made to export the surround lighting adapting to different brightness, again by more than 1 micro projector by running information projection on the windshield, demonstrate clearly and soft running information image thus, eye-observation is got up more clear and comfortable, substantially increase the display effect of looking squarely display, and under the prerequisite ensureing display effect, save the energy consumption of head-up display system.
Description
Technical field
The invention belongs to electronic display technology field, particularly relate to a kind of head-up display method and system.
Background technology
The common method that the head-up display system of automobile adopts is the reflection utilizing windshield, the virtual image is formed in windshield front, thus running information is projected the front of driver, make driver need when driving with reference to during running information without the need to bowing, thus wholwe-hearted pay close attention to the road conditions travelling front.National standard requires that the transmissivity of the windshield of automobile must be greater than 70%, to ensure that driver can see front road conditions clearly.That is, the reflectivity of windshield is lower than 30%, and the reflective light intensity arriving the image of human eye is more weak.
Human eye the light levels of image of perception can not merely depend on the brightness of image, and has much relations with the size of the brightness of surround lighting during eye-observation image.The brightness of surround lighting is larger, and the brightness of image of Human Perception is dimer; The brightness of surround lighting is less, and the brightness of image of Human Perception is brighter.Therefore, when the brightness of surround lighting is excessive, the display effect of existing head-up display system is poor.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of head-up display method, is intended to solve when the brightness of surround lighting is excessive, the problem of the display effect difference of existing head-up display system.
The embodiment of the present invention is achieved in that a kind of head-up display method, comprising:
The brightness of acquisition environment light;
According to the brightness of described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source;
Receive running information, described running information is transferred to described more than 1 micro projector, to make described more than 1 micro projector by described running information projection on the windshield.
Another object of the embodiment of the present invention is to provide a kind of head-up display system, comprising:
Surround lighting detecting module, for the brightness of acquisition environment light;
Luminous flux output control module, for the brightness according to described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source;
Running information projection module, for receiving running information, transfers to described more than 1 micro projector by described running information, to make described more than 1 micro projector by described running information projection on the windshield.
The luminous flux that the embodiment of the present invention controls more than 1 micro projector by the brightness of environmentally light exports, the luminous flux of more than 1 micro projector is made to export the surround lighting adapting to different brightness, again by more than 1 micro projector by running information projection on the windshield, demonstrate clearly and soft running information image thus, eye-observation is got up more clear and comfortable, substantially increase the display effect of looking squarely display, and under the prerequisite ensureing display effect, save the energy consumption of head-up display system.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the head-up display method that the embodiment of the present invention provides;
Fig. 2 is the specific implementation process flow diagram of the step S102 of the head-up display method that the embodiment of the present invention provides;
Fig. 3 is the specific implementation process flow diagram of the step S103 of the head-up display method that the embodiment of the present invention provides;
Fig. 4 is the structured flowchart of the head-up display system that the embodiment of the present invention provides;
Fig. 5 is the structured flowchart of the head-up display system that another embodiment of the present invention provides;
Fig. 6 is the structured flowchart of the optics that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The luminous flux that the embodiment of the present invention controls more than 1 micro projector by the brightness of environmentally light exports, the luminous flux of more than 1 micro projector is made to export the surround lighting adapting to different brightness, again by more than 1 micro projector by running information projection on the windshield, demonstrate clearly and soft running information image thus, eye-observation is got up more clear and comfortable, substantially increase the display effect of looking squarely display, and under the prerequisite ensureing display effect, save the energy consumption of head-up display system.
The head-up display method that the embodiment of the present invention provides and system can be applied to the field such as automobile, aircraft, in this no limit.
Fig. 1 shows the realization flow figure of the head-up display method that the embodiment of the present invention provides, and details are as follows:
In step S101, the brightness of acquisition environment light.
In embodiments of the present invention, head-up display system adopts the brightness of optical sensor acquisition environment light.The light signal detected by photovalve acquisition environment light, then is converted to electric signal by photovalve by optical sensor.Preferably, optical sensor used herein is ambient light sensor, and ambient light sensor has good spectral response relative to other photosensitive devices.
In step s 102, according to the brightness of described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source.
As a preferably embodiment of the present invention, micro projector adopts laser diode (LaserDiode, LD) as light source.The luminous flux considering the laser diode that general micro projector adopts is 15 ~ 30LM(Lumen, lumen), therefore, the luminous flux of single micro projector exports the image quality requirements that cannot meet under high light, so can adopt two or more micro projectors.
Fig. 2 shows the specific implementation process flow diagram of the head-up display method step S102 that the embodiment of the present invention provides, with reference to Fig. 2:
Further, according to the brightness of described surround lighting described in step S102, the luminous flux controlling more than 1 micro projector exports and comprises:
In step s 201, according to the environmental light brightness progression threshold range preset, the brightness progression belonging to brightness of described surround lighting is judged.
As one embodiment of the present of invention, the CPU(CentralProcessingUnit in head-up display system, central processing unit) preset the threshold range of environmental light brightness progression, such as, the brightness of surround lighting is divided into 5 progression by CPU, is respectively 1 grade, 2 grades, 3 grades, 4 grades and 5 grades, each progression threshold range that correspondence one is default respectively, such as, 1 grade of ultralow light of correspondence, 2 grades of corresponding low lights, light in 3 grades of correspondences, 4 grades of corresponding Gao Guang, 5 grades of corresponding superelevation light.The brightness of the surround lighting that CPU detects according to optical sensor, judges the brightness progression described in brightness of surround lighting.Here, the progression number of the environmental light brightness preset is not construed as limiting.
In step S202, according to the brightness progression belonging to the brightness of described surround lighting, and the corresponding relation that environmental light brightness progression and the luminous flux preset export, the luminous flux output of described more than 1 micro projector is set.
As one embodiment of the present of invention, the luminous flux that the corresponding micro projector of surround lighting of different brightness progression is different exports, brightness progression belonging to the brightness of surround lighting is larger, and the luminous flux of more than 1 micro projector that CPU is controlled by light controller exports larger.
Such as, when the sunny period, CPU controls by light controller the output that more than 1 micro projector improves luminous flux; When entering night, CPU controls by light controller the output that more than 1 micro projector reduces luminous flux.Thus when the brightness of different surround lightings, the brightness of head-up display system automatic detection surround lighting, and the luminous flux controlling more than 1 micro projector adaptively exports, thus under the prerequisite of display effect ensureing head-up display system, reduce total power consumption.
In step s 103, receive running information, described running information is transferred to described more than 1 micro projector, to make described more than 1 micro projector by described running information projection on the windshield.
Fig. 3 shows the specific implementation process flow diagram of the head-up display method step S103 that the embodiment of the present invention provides, with reference to Fig. 3:
Further, described in step S103, receive running information, described running information transferred to described more than 1 micro projector, to make described more than 1 micro projector, described running information projection is comprised on the windshield:
In step S301, receive running information, generate graph text information corresponding to described running information according to the described running information received.
In step s 302, by teletext transmission corresponding for described running information to described more than 1 micro projector, to make described more than 1 micro projector by graph text information corresponding for described running information projection on the windshield.
As one embodiment of the present of invention, the running information that head-up display system receives by CPU carries out computing analysis, running information after computing being analyzed by the image processor in head-up display system converts graph text information to, and the picture and text of running information are projected by more than 1 micro projector, project on windshield via optical reflection member reflects.Meanwhile, CPU also receives the brightness case of the surround lighting of optical sensor feedback, analyzes the brightness case of surround lighting, then controls by CPU the luminous flux output that light controller adjusts more than 1 micro projector.
Further, described method also comprises:
According to the side-play amount that each described micro projector is placed, adjust the projected image that each described micro projector produces respectively, overlap with the described projected image making described more than 1 micro projector produce.
The luminance brightness of the embodiment of the present invention by adopting multiple micro projector to strengthen image source, thus the luminance brightness strengthening the virtual image that windshield is formed.But the position of placing due to multiple micro projector can not overlap, therefore, if use same image source data, projected image may be caused not overlap, cause ghost phenomena or image offset.
As one embodiment of the present of invention, according to the relative displacement that each micro projector is placed, adjusted the projected image of each micro projector respectively by the image processor that each micro projector is corresponding, thus all projected images are overlapped.
Preferably, the brightness of described acquisition environment light comprises:
The brightness of described surround lighting is detected with the fixed cycle.
As a preferred embodiment of the present invention, the fixed cycle of setting acquisition environment light, to make optical sensor according to the brightness of fixed cycle acquisition environment light.Here, head-up display system can fixed cycle of brightness of default setting acquisition environment light, and such as, the fixed cycle is 5 seconds; Head-up display system can also provide multiple fixed cycle option to driver, and such as, the fixed cycle is respectively 5 seconds, 10 seconds or 30 seconds, selectes the fixed cycle to make driver.
As an alternative embodiment of the invention, carry out the brightness of acquisition environment light according to the instruction of the acquisition environment light of driver.Here, head-up display system provides the button of acquisition environment light to driver, makes driver send the instruction of acquisition environment light by the button of this acquisition environment light.
As an alternative embodiment of the invention, the fixed cycle of setting acquisition environment light, meanwhile, the instruction of the acquisition environment light of driver can be received, make the brightness of optical sensor acquisition environment light.Such as, the cycle of the brightness of head-up display system default setting acquisition environment light is 5 seconds, when vehicle travels in a long tunnel, head-up display system is by the brightness of acquisition environment light, the luminous flux of more than 1 micro projector is exported and reduces, when vehicle rolls tunnel away from, not yet arrive the moment of the brightness of acquisition environment light, and now the luminous flux of more than 1 micro projector exports the demand that can not meet the clear display of head-up display system, then driver can send the instruction of acquisition environment light by the button of acquisition environment light, head-up display system is made to control the output of more than 1 micro projector raising luminous flux.
The luminous flux that the embodiment of the present invention controls more than 1 micro projector by the brightness of environmentally light exports, the luminous flux of more than 1 micro projector is made to export the surround lighting adapting to different brightness, again by more than 1 micro projector by running information projection on the windshield, demonstrate clearly and soft running information image thus, eye-observation is got up more clear and comfortable, substantially increase the display effect of looking squarely display, and under the prerequisite ensureing display effect, save the energy consumption of head-up display system.
Fig. 4 shows the structured flowchart of the head-up display system that the embodiment of the present invention provides, and this system is used for the head-up display method described in service chart 1 to Fig. 3.For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.
With reference to Fig. 4, this system comprises:
Surround lighting detecting module 41, the brightness of acquisition environment light.
Luminous flux output control module 42, according to the brightness of described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source.
Running information projection module 43, receives running information, described running information is transferred to described more than 1 micro projector, to make described more than 1 micro projector by described running information projection on the windshield.
Further, described luminous flux output control module 42 comprises:
Environmental light brightness progression decision sub-module, according to the environmental light brightness progression threshold range preset, judges the brightness progression belonging to brightness of described surround lighting.
Luminous flux exports and arranges submodule, according to the brightness progression belonging to the brightness of described surround lighting, and the corresponding relation that environmental light brightness progression and the luminous flux preset export, the luminous flux output of described more than 1 micro projector is set.
Further, described running information projection module 43 comprises:
Running information receives and processing module, receives running information, generates graph text information corresponding to described running information according to the described running information received.
Running information projection submodule, by teletext transmission corresponding for described running information to described more than 1 micro projector, to make described more than 1 micro projector by graph text information corresponding for described running information projection on the windshield.
Further, described system also comprises:
Place side-play amount adjusting module, according to the side-play amount that each described micro projector is placed, adjust the projected image that each described micro projector produces respectively, overlap with the described projected image making described more than 1 micro projector produce.
Preferably, described surround lighting detecting module specifically for:
The brightness of described surround lighting is detected with the fixed cycle.
Fig. 5 shows the structured flowchart of the head-up display system that another embodiment of the present invention provides, and this system is used for the head-up display method described in service chart 1 to 3.For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.
With reference to Fig. 5, this system comprises:
Be connected with CPU52, for the brightness of acquisition environment light, and the brightness case of the surround lighting detected be sent to the optical sensor 51 of CPU52;
Be connected with optical sensor 51, analyze running information for computing, and the CPU52 that the luminous flux controlling more than 1 micro projector 55 exports;
Being connected with CPU52, for carrying out image procossing to the running information received, and the image that multiple micro projector projects being carried out to the image processor 53 of merging treatment;
Be connected with CPU52, for the instruction according to CPU, the light controller 54 that the luminous flux controlling more than 1 micro projector 55 exports;
Be connected with light controller 52, for exporting different luminous fluxes under the brightness of different surround lightings, by running information projection micro projector 55 on the windshield;
Be connected with more than 1 micro projector, for running information being reflexed to the optics 56 on windshield.
It should be noted that, Fig. 5 illustrate only the situation that head-up display system comprises 2 micro projectors 55, in actual applications, is not construed as limiting the number of micro projector 55.
Fig. 6 shows the structured flowchart of the optics that the embodiment of the present invention provides, and with reference to Fig. 6, optics 56 comprises Irregular Boundary Surface lens 561, multiple catoptron 562 and curved reflector 563.The image light source that micro projector 55 projects forms real image source at Irregular Boundary Surface lens 561, and real image source, through catoptron 562 multiple reflections, is amplified through curved reflector 563, revised reflection, can image projection to windshield.
The luminous flux that the embodiment of the present invention controls more than 1 micro projector by the brightness of environmentally light exports, the luminous flux of more than 1 micro projector is made to export the surround lighting adapting to different brightness, again by more than 1 micro projector by running information projection on the windshield, demonstrate clearly and soft running information image thus, eye-observation is got up more clear and comfortable, substantially increase the display effect of looking squarely display, and under the prerequisite ensureing display effect, save the energy consumption of head-up display system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a head-up display method, is characterized in that, comprising:
The brightness of acquisition environment light;
According to the brightness of described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source;
Receive running information, described running information is transferred to described more than 1 micro projector, to make described more than 1 micro projector by described running information projection on the windshield;
According to the side-play amount that each described micro projector is placed, adjusted the projected image of each described micro projector generation by the image processor that each described micro projector is corresponding respectively, overlap with the described projected image making described more than 1 micro projector produce;
The described brightness according to described surround lighting, the luminous flux controlling more than 1 micro projector exports and comprises:
According to the environmental light brightness progression threshold range preset, judge the brightness progression belonging to brightness of described surround lighting;
According to the brightness progression belonging to the brightness of described surround lighting, and the corresponding relation that environmental light brightness progression and the luminous flux preset export, the luminous flux output of described more than 1 micro projector is set.
2. the method for claim 1, is characterized in that, described reception running information, described running information is transferred to described more than 1 micro projector, described running information projection is comprised on the windshield to make described more than 1 micro projector:
Receive running information, generate graph text information corresponding to described running information according to the described running information received;
By teletext transmission corresponding for described running information to described more than 1 micro projector, to make described more than 1 micro projector by graph text information corresponding for described running information projection on the windshield.
3. the method for claim 1, is characterized in that, the brightness of described acquisition environment light comprises:
The brightness of described surround lighting is detected with the fixed cycle.
4. a head-up display system, is characterized in that, comprising:
Surround lighting detecting module, for the brightness of acquisition environment light;
Luminous flux output control module, for the brightness according to described surround lighting, the luminous flux controlling more than 1 micro projector exports, and described more than 1 micro projector adopts LASER Light Source;
Running information projection module, for receiving running information, transfers to described more than 1 micro projector by described running information, to make described more than 1 micro projector by described running information projection on the windshield;
Place side-play amount adjusting module, for the side-play amount of placing according to each described micro projector, adjusted the projected image of each described micro projector generation by the image processor that each described micro projector is corresponding respectively, overlap with the described projected image making described more than 1 micro projector produce;
Described luminous flux output control module comprises:
Environmental light brightness progression decision sub-module, for according to the environmental light brightness progression threshold range preset, judges the brightness progression belonging to brightness of described surround lighting;
Luminous flux exports and arranges submodule, for the brightness progression belonging to the brightness of described surround lighting, and the corresponding relation that environmental light brightness progression and the luminous flux preset export, the luminous flux output of described more than 1 micro projector is set.
5. system as claimed in claim 4, it is characterized in that, described running information projection module comprises:
Running information receives and processing module, for receiving running information, generates graph text information corresponding to described running information according to the described running information received;
Running information projection submodule, for by teletext transmission corresponding for described running information extremely described more than 1 micro projector, to make described more than 1 micro projector by graph text information corresponding for described running information projection on the windshield.
6. system as claimed in claim 4, is characterized in that, described surround lighting detecting module specifically for:
The brightness of described surround lighting is detected with the fixed cycle.
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| KR102256987B1 (en) * | 2014-06-11 | 2021-05-26 | 현대모비스 주식회사 | Apparatus and method for vehicle driver visibility |
| CN104618671B (en) * | 2015-01-26 | 2018-12-14 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN107367840B (en) * | 2017-06-30 | 2020-06-23 | Oppo广东移动通信有限公司 | Information display method, information display device, storage medium and electronic equipment |
| US10895741B2 (en) | 2017-10-03 | 2021-01-19 | Industrial Technology Research Institute | Ultra-wide head-up display system and display method thereof |
| JP6749981B2 (en) * | 2018-10-01 | 2020-09-02 | 本田技研工業株式会社 | Display device, display control method, and program |
| CN110244473A (en) * | 2019-05-06 | 2019-09-17 | 华为技术有限公司 | A kind of display device and glasses |
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