CN105676457A - Head-mounted display device with multiple flight point views - Google Patents
Head-mounted display device with multiple flight point views Download PDFInfo
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- CN105676457A CN105676457A CN201610217605.5A CN201610217605A CN105676457A CN 105676457 A CN105676457 A CN 105676457A CN 201610217605 A CN201610217605 A CN 201610217605A CN 105676457 A CN105676457 A CN 105676457A
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- 230000000007 visual effect Effects 0.000 claims abstract description 71
- 238000003384 imaging method Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 33
- 239000010410 layer Substances 0.000 claims description 27
- 230000008859 change Effects 0.000 claims description 16
- 210000003128 head Anatomy 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004886 head movement Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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- Optics & Photonics (AREA)
Abstract
The invention discloses a head-mounted display device with multiple flight point views. The head-mounted display device comprises a wearing unit and an FPV (First-person Point View) information display unit, an imaging lens and a visual screen mounted on the wearing unit, the visual screen comprises a semi-reflection semi-transmitting layer, the FPV information display unit obtains and displays the FPV information sent from an aircraft, light of a displayed image passes the imaging lens, is then reflected by the semi-reflection semi-transmitting layer, and is displayed in the visual field of a wearer in the form of a virtual image, and natural light, as TPV (Third-person Point View) information, generated by the aircraft penetrates the semi-reflection semi-transmitting layer of the visual screen, and is transmitted to the eyes to generate a real image. The head-mounted display device can provided multiple flight point views and display TPV and FPV information simultaneously, and further, an operator can select to display or shut down any point view information to switch the point views under the condition that the display device is not taken off.
Description
Technical field
The present invention relates to coordinate unmanned vehicle and model plane flight use wear display device, especially a kind of many flight visual angle wear display device.
Background technology
At unmanned vehicle and model plane in-flight, operator is generally with third person (theThird-personPointofView, TPV) visualization and handle aircraft, thus carrying out taking off, landing and near field flight. At distant (or beyond beyond visual range), operator can pass through first person (theFirst-personPointofView, FPV) video eyeglasses (or earth station's display screen) obtains video and the sensor signal that airborne photographic head is passed back, flies thus controlling aircraft. This dependence video eyeglasses (or earth station) obtains information and controls mode and the FPV flight of flight. In practical flight process, operator must divert sb.'s attention, and wears (winning) video eyeglasses, thus switching between TPV and FPV visual angle. And divert sb.'s attention and be easily caused operator and lose the trace of aircraft, bring difficulty to FPV flight. Operator typically requires assistant's auxiliary observation aircraft, or is undertaken pinpointing (or default course line) flight by automatic pilot, to guarantee successfully to switch visual angle.
Summary of the invention
The problem brought to overcome operator awing must divert sb.'s attention, what the present invention provided a kind of many flight visual angle wears display device, TPV and FPV information can be shown simultaneously, further, when operator does not win this equipment, display can be selected or close visual angle information, carrying out view angle switch.
For achieving the above object, the present invention is by the following technical solutions:
A kind of many flight visual angle wear display device, including wearable device and the FPV information display unit being arranged on described wearable device, imaging len and visual screen, described visual screen includes half reflection and half transmission layer, described FPV information display unit obtains the FPV information transmitted by aircraft and displays, the light of shown image reflects at described half reflection and half transmission layer after described imaging len, it is shown in the wearer visual field with the form of the virtual image, the available light that aircraft produces is as the half reflection and half transmission layer of the TPV information described visual screen of traverse, it is transmitted through eyes and produces real image.
Further:
Described visual screen also includes light valve, and described light valve is arranged to controlled to open or close, thus allowing or stopping the described TPV information described visual screen of traverse.
Described light valve includes electrically-controlled liquid crystal layer, and described electrically-controlled liquid crystal layer can be controlled to change continuously light transmittance by the signal of telecommunication, with the adjustment realizing making that available light is fully on, completely cutting through or to light intensity.
Described light valve includes rotatable polarizer, and described rotatable polarizer changes light transmission features by changing polariscopic relative angle.
Described visual screen also includes the protective layer for absorbing harmful light.
Described imaging len includes Fresnel Lenses or convex lens, described Fresnel Lenses or described convex lens, and to be arranged to position adjustable to adjust the image-forming range of the virtual image.
Described imaging len is arranged to make the image distance between the virtual image and eyes more than 2000 millimeters, and the focal length of described imaging len is 80～200 millimeters, and the object distance between described FPV information display unit and described imaging len is less than the focal length of described imaging len.
Described FPV information display unit includes smart mobile phone.
Described wearable device is also equipped with headwork detection unit, described headwork detection unit is used for detecting headwork, the signal detected is by WIFI transmission to information center, it is wirelessly transmitted to aircraft again by described remote controller, regulate and control with the photographic head to aircraft, described remote controller also gathers the aircraft control instruction of wearer and is wirelessly transmitted to aircraft, and to control aircraft flight, described information center is the hand-held remote controller of wearer or independent earth station.
Described FPV information includes the video signal of the photographic head shooting of aircraft and the sensor signal of aircraft, described video signal and described sensor signal are wirelessly transmitted to described information center, transmitting to FPV information display unit again through WIFI, described information center is the hand-held remote controller of wearer or independent earth station.
Beneficial effects of the present invention:
Relative to existing FPV video eyeglasses (or FPV helmet), instant invention overcomes operator and must divert sb.'s attention the problem brought. Operator when not winning this equipment, can obtain TPV and FPV information, simultaneously two kinds of flight visual angles of display simultaneously; Further, by arranging light valve, control FPV information display unit and light valve, it is also possible to switching visual angle or change display content.
Existing FPV video eyeglasses only shows FPV information. The present invention is possible not only to individually show FPV information, and can be in horizon range at aircraft (such as < 300 meters) display TPV information. Namely when light valve is opened, not showing, part shows or shows FPV information completely.
When showing TPV information and FPV information at the same time, the point of fixation of operator's eyes can switch between aircraft and FPV information. Preferably, make the image distance between the virtual image and the eyes of FPV information more than 2000 millimeters, image distance farther out can make eyes can rapid focus, reduce visual fatigue.
Carrying out visually (TPV visual angle) rolling start and landing for fixed-wing class aircraft, operator easily slips up cause aircraft stall owing to lacking flying quality (such as speed, highly, deflection ratio). The present invention can be used on offer flying quality under TPV visual angle, is used in controllers and accurately controls aircraft speed and course line.
Existing FPV video eyeglasses switching visual angle, operator wears and wins glasses and can result in entering the light intensity of eyes great changes will take place, causes that pupil is difficult to quickly regulate. The visual screen of the present invention can realize the time delay change of light transmittance, makes eyes adapt to the light intensity change that view angle switch causes smoothly.
Time out of doors with TPV view aircraft flight, operator filters harmful light such as glare, ultraviolet it is generally required to wear sunglasses.The visual screen of the present invention comprises protective layer, such as light polarizing film, can effectively filter out harmful light, protect eyes.
Relative to existing FPV video eyeglasses, the preferred embodiment of the present invention utilizes the screen image source as FVP information of smart mobile phone and the airborne photographic head actuating signal of sensor acquisition utilizing smart mobile phone built-in. When smart mobile phone is universal, cost can be significantly reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation wearing a kind of embodiment of display device at the present invention many flight visual angle;
Fig. 2 is the fundamental diagram wearing a kind of embodiment of display device at the present invention many flight visual angle;
Fig. 3 is the view angle switch schematic diagram wearing a kind of embodiment of display device at the present invention many flight visual angle.
Detailed description of the invention
Hereinafter embodiments of the present invention are elaborated. It is emphasized that the description below is merely exemplary, rather than in order to limit the scope of the present invention and application thereof.
Consult Fig. 1 to Fig. 3, in one embodiment, a kind of many flight visual angle wear display device, including wearable device 1 and the FPV information display unit 2 being arranged on described wearable device 1, imaging len 3 and visual screen 6, described visual screen 6 includes half reflection and half transmission layer 9, described FPV information display unit 2 obtains the FPV information transmitted by aircraft 10 and displays, the light of shown image reflects at described half reflection and half transmission layer 9 after described imaging len 3, it is shown in the wearer visual field with the form of the virtual image 5, the available light 4 that aircraft 10 produces is as the half reflection and half transmission layer 9 of the TPV information described visual screen 6 of traverse, it is transmitted through eyes and produces real image.
In a preferred embodiment, described visual screen 6 also includes light valve, and described light valve is arranged to controlled to open or close, thus allowing or stopping the described TPV information described visual screen 6 of traverse. By controlling FPV information display unit 2 and light valve, operator selects display or closes visual angle information when can not win this equipment, carry out view angle switch.
In a preferred embodiment, described light valve adopts electrically-controlled liquid crystal layer 8, and described electrically-controlled liquid crystal layer 8 can be controlled to change continuously light transmittance by the signal of telecommunication, with the adjustment realizing making that available light 4 is fully on, completely cutting through or to light intensity. It is strong and weak that the detection of available photo-sensitive cell controls electrically-controlled liquid crystal layer 8 light regulating, can keep the brightness relative constancy of the virtual image and real image. When ambient light changes, the program ensures that FPV and TPV information still can simultaneously blur-free imaging.
Described light valve can also adopt rotatable polarizer, and described rotatable polarizer changes light transmission features by changing polariscopic relative angle.
In a preferred embodiment, described visual screen 6 also includes the protective layer 7 for absorbing harmful light. Protective layer 7 can be transparent or not exclusively transparent.
In a preferred embodiment, to adopt Fresnel Lenses or convex lens, described Fresnel Lenses or convex lens to be arranged to position adjustable to adjust the image-forming range of the virtual image 5 for imaging len 3. The position of Fresnel Lenses or convex lens is adjustable can be realized by built-in chute or quadric chain.
Imaging len 3 is arranged to make the image distance between the virtual image 5 and eyes more than 2000 millimeters, and the focal length of imaging len 3 is 80～200 millimeters, and the object distance between described FPV information display unit 2 and imaging len 3 is less than the focal length of imaging len 3.
Described FPV information display unit 2 preferably can adopt smart mobile phone.FPV information display unit 2 can also adopt independent LED/OLED display screen or digital micro-mirror wafer DMD.
In a preferred embodiment, described wearable device 1 is also equipped with headwork detection unit, described headwork detection unit is used for detecting headwork, the signal detected is by WIFI transmission to the hand-held remote controller 13 of wearer, it is wirelessly transmitted to aircraft 10 again by described remote controller 13, regulating and controlling with the photographic head 11 to aircraft 10, described remote controller 13 also gathers the aircraft control instruction of wearer and is wirelessly transmitted to aircraft 10, flies controlling aircraft 10.
Described FPV information includes the video signal of photographic head 11 shooting of aircraft 10 and the sensor signal of aircraft 10, described video signal and described sensor signal are wirelessly transmitted to the hand-held remote controller of wearer 13, again through WIFI transmission to FPV information display unit 2.
In order to completely realize the function at this helmet switching visual angle, principles of the invention comprises three aspects: information transmission, imaging and light Vavle switching visual angle.
1, information transmission
Information is transmitted in both directions, and including ground/empty transmission, sky/ground transmits, as shown in Figure 2.
Ground/empty transmission and information are reached aircraft 10 by ground. Information includes two class signals: photographic head actuating signal and aircraft control signal. For photographic head actuating signal, this signal is by the built-in sensor such as gyroscope of the smart mobile phone installed in wearable device 1, accelerometer collection, it is thus achieved that operator's headwork. Smart mobile phone transmits signals to remote controller 13 by WIFI. This signal is passed through long range radio transmissions again to aircraft 10 by remote controller 13 as information center, finally controls the action of photographic head 11. For aircraft control signal, this signal is gathered by the remote controller 13 that operator is hand-held, is used for controlling flight by long range radio transmissions to aircraft 10. Namely sky/ground transmission is reached the FPV information on ground by aircraft 10. FPV information includes video signal and sensor signal. Video signal and airborne photographic head 11 obtain the video of ground target 12. The speed that sensor signal and unmanned aerial vehicle onboard sensor obtain, highly, azimuth, position signals. Two class signals are launched by aircraft 10, by long range radio transmissions to remote controller 13, then are reached smart mobile phone by WIFI.
Information center is except can adopting remote controller 13, it is also possible to adopt independent earth station. 2, imaging
Imaging i.e. visual screen 6 can show the image that TPV and FPV information produces in the operator visual field simultaneously. The image source of FPV information is the screen of smart mobile phone, and visually shielding the half reflection and half transmission layer 9 inside 6 is the essential condition simultaneously showing TPV and FPV information.
The real image presented of TPV information and aircraft 10 and external environment condition. Light transmission, through the half reflection and half transmission layer 9 of visual screen 6, is produced real image in eyes by the available light 4 that aircraft 10 produces.
FPV information is shown in the operator visual field with the virtual image 5 form. FPV information includes by video signal and sensor signal. The image of FPV information is generated by the display screen of smart mobile phone. As it is shown in figure 1, the light that this image sends is incident upon visual screen 6 through Fresnel lens 3, the half reflection and half transmission layer 9 of visual screen inner side utilizes principle of reflection transmission in eyes, produce the virtual image 5. The effect of lens 3 is in that to adjust the image-forming range of the virtual image 5, makes the image distance between the virtual image and eyes more than 2000 millimeters.The focal length of lens 3 is 80～200 millimeters, and the object distance between mobile phone screen and lens 3 is less than the focal length of lens. The position of lens 3 is by adjustable sliding, to reach to adjust the purpose of image distance.
3, light Vavle switching visual angle
Operator can control light valve conducting/cut-out, coordinates smart mobile phone display image to realize the function at switching visual angle simultaneously. As it is shown on figure 3, smart mobile phone display image, light valve is opened and is made available light 4 through visual screen 6 simultaneously, and such operator can simultaneously observe FPV information and TPV information. When needs switch visual angle, light valve is closed and is blocked available light 4 and keep smart mobile phone display image, and such operator only observes FPV information and do not accept TPV information. Therefore switching visual angle is turned on by light valve/is cut off, and coordinate smart mobile phone to show/close image realizes simultaneously.
In embodiment, light valve can be electrically-controlled liquid crystal layer 8, is embedded in visual screen 6, as shown in Figure 1. Electrically-controlled liquid crystal layer 8 is controlled to change continuously light transmittance by the signal of telecommunication, it may be achieved available light 4 is fully on, completely cuts through and the function of intensity of light regulating. The light transmission features of the light valve of visual screen can design by continually varying, is conducive to eyes to adapt to switching visual angle gradually and causes the change of light intensity.
Can pass through to handle remote controller and produce control signal, control helmet switching visual angle and change FPV informational display.
Embodiment 1
The display screen that image source is smart mobile phone of display FPV information.
This embodiment utilizes principle of reflection to produce the FPV information virtual image 5, the semi-reflection and semi perspective layer 9 visually shielded in 6 realize.
Arranging a piece of Fresnel lens 3 between smart mobile phone and visual screen 6, the position changeable of lens is used for regulating virtual image distance.
Light valve in visual screen 6 adopts electrically-controlled liquid crystal layer 8, the signal of telecommunication change light transmission features.
Smart mobile phone and information center and remote controller 13 are with WIFI wireless connections. Embedded in mobile phone sensor acquisition head movement signal, is transferred to remote controller 13 by WIFI. Eventually for the view directions controlling airborne photographic head 11.
Received the FPV information being reached ground by aircraft 10 by remote controller 13, be transferred to smart mobile phone again through WIFI and control display FPV information. The audio sockets output of mobile phone controls the signal of telecommunication of light valve.
Other embodiments
Changing on the basis of embodiment 1, image source does not adopt the display screen of smart mobile phone, and uses independent LED/OLED display screen or digital micro-mirror wafer DMD.
Light valve can be mechanical type. As arrange before visual screen can on turn over dark slide, or before visual screen, rotatable polarizer is installed, utilizes and change two panels polarizer relative angle change light transmission features. On turn over dark slide scheme and be unfavorable for that eyes adapt to light change, rotary type polarizer mechanism complexity cost is high.
The basis utilizing principle of reflection imaging of embodiment 1 changes light path, between image source and visual screen, increases a piece of reflecting mirror. The program can be avoided overturning about correction map picture, but additionally increase reflecting mirror and increase the weight of helmet, and makes center of gravity move forward.
Change the visual screen structure of embodiment 1 and keep function constant. The interlayer order of protective layer, electrically-controlled liquid crystal layer, half reflection and half transmission layer can be changed. Layer can be additionally increased, such as anti-reflection film, UV-absorbing layer on existing visual screen basis.
Change the mode regulating virtual image position. As cancelled Fresnel lens, and the visual screen (such as coquille or curved mirror) of molded non-planar is adopted to amplify the virtual image and increase image-forming range.The program can make virtual image distance more than 2000 millimeters. Another program is for adopting multi-disc compound lens, and the program can revise aberration.
Change the position of information center. As information center is moved to the earth station additionally arranged by remote controller. Or, information center is combined with helmet.
Do not use the built-in sensors of smart mobile phone, and adopt external gyroscope, compass, optical positioning sensors.
The triggering signal of view angle switch can be produced by remote controller, it is also possible to by the switch being arranged on helmet, or detect specific head movement and produce.
Above content is to combine concrete/preferred embodiment further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; these embodiments having described that can also be made some replacements or modification by it, and these substitute or variant all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. flight visual angle more than a kind wear display device, it is characterized in that, including wearable device and the FPV information display unit being arranged on described wearable device, imaging len and visual screen, described visual screen includes half reflection and half transmission layer, described FPV information display unit obtains the FPV information transmitted by aircraft and displays, the light of shown image reflects at described half reflection and half transmission layer after described imaging len, it is shown in the wearer visual field with the form of the virtual image, the available light that aircraft produces is as the half reflection and half transmission layer of the TPV information described visual screen of traverse, it is transmitted through eyes and produces real image.
2. wearing display device as claimed in claim 1, it is characterised in that described visual screen also includes light valve, described light valve is arranged to controlled to open or close, thus allowing or stopping the described TPV information described visual screen of traverse.
3. wear display device as claimed in claim 1, it is characterized in that, described light valve includes electrically-controlled liquid crystal layer, and described electrically-controlled liquid crystal layer can be controlled to change continuously light transmittance by the signal of telecommunication, with the adjustment realizing making that available light is fully on, completely cutting through or to light intensity.
4. wear display device as claimed in claim 1, it is characterised in that described light valve includes rotatable polarizer, and described rotatable polarizer changes light transmission features by changing polariscopic relative angle.
5. wear display device as claimed in claim 1, it is characterised in that described visual screen also includes the protective layer for absorbing harmful light.
6. wear display device as claimed in claim 1, it is characterised in that described imaging len includes Fresnel Lenses or convex lens, described Fresnel Lenses or described convex lens, and to be arranged to position adjustable to adjust the image-forming range of the virtual image.
7. wear display device as claimed in claim 1, it is characterized in that, described imaging len is arranged to make the image distance between the virtual image and eyes more than 2000 millimeters, the focal length of described imaging len is 80～200 millimeters, and the object distance between described FPV information display unit and described imaging len is less than the focal length of described imaging len.
8. as described in any one of claim 1 to 7, wear display device, it is characterised in that described FPV information display unit includes smart mobile phone.
9. as described in any one of claim 1 to 7, wear display device, it is characterized in that, described wearable device is also equipped with headwork detection unit, described headwork detection unit is used for detecting headwork, the signal detected is by WIFI transmission to information center, it is wirelessly transmitted to aircraft again by described remote controller, regulate and control with the photographic head to aircraft, described remote controller also gathers the aircraft control instruction of wearer and is wirelessly transmitted to aircraft, to control aircraft flight, described information center is the hand-held remote controller of wearer or independent earth station.
10. as described in any one of claim 1 to 7, wear display device, it is characterized in that, described FPV information includes the video signal of the photographic head shooting of aircraft and the sensor signal of aircraft, described video signal and described sensor signal are wirelessly transmitted to described information center, transmitting to FPV information display unit again through WIFI, described information center is the hand-held remote controller of wearer or independent earth station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217605.5A CN105676457A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display device with multiple flight point views |
| PCT/CN2016/102064 WO2017173799A1 (en) | 2016-04-08 | 2016-10-13 | Head-mounted display apparatus enabling multiple flight-points-of-view |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217605.5A CN105676457A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display device with multiple flight point views |
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| CN105676457A true CN105676457A (en) | 2016-06-15 |
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| CN201610217605.5A Pending CN105676457A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display device with multiple flight point views |
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| WO (1) | WO2017173799A1 (en) |
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