CN101847330A - Digital astronomical phenomena system, ball screen and data processing method - Google Patents
Digital astronomical phenomena system, ball screen and data processing method Download PDFInfo
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- CN101847330A CN101847330A CN200910080906A CN200910080906A CN101847330A CN 101847330 A CN101847330 A CN 101847330A CN 200910080906 A CN200910080906 A CN 200910080906A CN 200910080906 A CN200910080906 A CN 200910080906A CN 101847330 A CN101847330 A CN 101847330A
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Abstract
The invention provides a digital astronomical phenomena system, a ball screen and a data processing method. The digital astronomical phenomena system comprises a calculation device, at least one projector and a detachable ball screen, wherein, the calculation device is used for acquiring starfield data, for carrying out starfield process on the starfield data to generate starfield image data, and for reducing the starfield image data to starfield image to output; the projector is used for receiving the starfield image, and for projecting out the starfield image; the detachable ball screen is used for receiving the starfield image projected out by the projector, and for displaying the starfield image. The digital astronomical phenomena system of the invention is based on the opened calculation device and the detachable ball screen, thus greatly expanding application fields.
Description
Technical field
The present invention relates to simulate the science popularization instrument of starry sky performance, be meant the method for a kind of digital astronomical phenomena system, ball curtain and deal with data especially.
Background technology
Planetarium is a kind of science popularization instrument of simulating the starry sky performance.This planetarium can be showed all kinds of celestial bodies that the different longitude and latitude on earth of leting others have a look at is seen a dome-type canopy of the heavens.As the lifting operation of the sun, the moon and the stars, planet is walked in fixed star, precession of the equinoxes motion of earth's axis or the like.Planetarium is divided into two kinds in optics planetarium and digital astronomical phenomena instrument.The optics planetarium is compared with the digital astronomical phenomena instrument, and is each has something to recommend him.
Traditional astronomical phenomena floor show is the whole day area image that adopts the simulation starry sky that the optics planetarium projects, be equipped with other dynamically or still image finish performance.Optics planetarium brightness height, the star of showing out has dazzling sense, clear picture; Shortcoming is that program is few, and is more uninteresting, dumb, and the making of program requires high, and viewing ball curtain film needs and 70mm film projection machine is used.
Digital astronomical phenomena instrument flexible operation, programme source is extensive, and the astrology position of launching is accurate, separately the various programs of projection digital format.The image of all demonstrations comprises the performance of starry sky, all is to be generated by COMPUTER CALCULATION, and performs out by projector equipment, thereby virtual universe roaming real-time, high image quality is provided.
Along with the development of computer digit technology, the digital astronomical phenomena instrument replaces the status of optics planetarium gradually, also is the playback equipment of digital ball-screen cinema simultaneously as astronomy and astronomical phenomena performance equipment not only.Along with everybody attention to scientific popularization work, the quantity of the large-scale digital astronomical phenomena Room and digital ball curtain arenas constantly increases, and builds the trend that the large-scale digital ball curtain arenas of diameter more than 18 meters becomes each big planetarium, science and technology center and museum.
Yet large-scale ball curtain arenas is owing to the cost of investment height, and the construction period is long, and the fixing and non-dismountable property of ball curtain of venue has shown gradually and has been not suitable for the defective that small-sized science and technology center, low-cost science popularization rover station (car) and middle and primary schools promote Popular Science Education.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of application method of digital astronomical phenomena system, ball curtain and deal with data widely.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
On the one hand, provide a kind of digital astronomical phenomena system, comprising:
One calculation element is used to obtain the starry sky data, and described starry sky data are carried out the starry sky processing, generates starry sky image data, and described starry sky image reduction of data is become starry sky image output;
At least one projection arrangement is used to receive described starry sky image, and described starry sky image is throwed away;
One detachable ball curtain is used to receive the described starry sky image that described projection arrangement casts out, and shows described starry sky image.
On the other hand, also provide a kind of ball curtain, comprising:
One detachable cylindrical stent has a sloped top face;
One detachable semisphere support is fixed on the described cylindrical stent, and the described sloped top face of its bottom opening face and described cylindrical stent is coincide;
One semisphere internal layer projection screen is fixed on after trailing on the described semisphere support;
One semisphere skin blocks curtain, and the back that trails is combined into a seal with described semisphere internal layer projection screen;
One air pump, being installed in described semisphere skin blocks on the curtain, when described air pump was bled, described internal layer projection screen and described skin blocked and form negative pressure between the curtain, and described internal layer projection screen and described skin block curtain and be fixed on the described semisphere support.
Again on the one hand, also provide a kind of method of deal with data, be used for digital astronomical phenomena system, comprising:
Obtain the starry sky data in many star catalogues;
Described starry sky data are carried out the starry sky processing, generate starry sky image data;
Described starry sky image reduction of data is become starry sky image;
Described starry sky image is outputed to projection arrangement in the described digital astronomical phenomena system, and by described projection arrangement described starry sky image is outputed on the ball curtain of described digital astronomical phenomena system and show.
Embodiments of the invention have following beneficial effect:
Such scheme obtains the starry sky data by opened calculation device, can obtain starry sky image after treatment, can simulate true chronometer phenomenon; And, enlarged its application greatly by detachable ball screen.
Description of drawings
Fig. 1 is the structural framing synoptic diagram of embodiments of the invention digital astronomical phenomena system;
Fig. 2 is the concrete structure synoptic diagram of the calculation element in the digital astronomical phenomena system shown in Figure 1;
Fig. 3 is the concrete structure synoptic diagram of the processing module in the calculation element shown in Figure 2;
Fig. 4 is the concrete structure synoptic diagram of the output module in the calculation element shown in Figure 2;
Fig. 5 is the concrete structure synoptic diagram of the ball curtain in the digital astronomical phenomena system;
Fig. 6 is the front elevation of ball curtain shown in Figure 5;
Fig. 7 goes up the synoptic diagram after internal layer projection screen and skin block curtain and air pump for ball curtain shown in Figure 5 covers;
Fig. 8 is the longitudinal sectional view of ball curtain shown in Figure 5;
Fig. 9 is the vertical view of ball curtain shown in Figure 5;
Figure 10 projects synoptic diagram on the ball curtain for the separate unit projection arrangement with starry sky image;
Figure 11 projects synoptic diagram on the ball curtain for two platform projection arrangements with starry sky image;
Figure 12 is the schematic flow sheet of the method for embodiments of the invention deal with data.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention are at the medium-and-large-sized ball curtain of prior art arenas cost of investment height, and the construction period is long, and venue is fixed the problem with non-dismountable property, and a kind of method of digital astronomical phenomena system, ball curtain and deal with data of Highgrade integration is provided.
As shown in Figure 1, digital astronomical phenomena system of the present invention comprises:
At least one projection arrangement 20 is used to receive described starry sky image, and described starry sky image is throwed away;
In this embodiment, this calculation element 10 can be a computing machine, it also can be a digital astronomical phenomena instrument, this calculation element 10 is by obtaining the starry sky data, according to these starry sky data, can be according to the residing when and where of observer, calculate a day aerial sun, the moon, the position of planet and fixed star, and with its output, it can also draw constellation, the simulation chronometer phenomenon is (as meteor shower, solar eclipse and lunar eclipse etc.), real time demonstration at that time, local starry sky also can show and comprises planet, fixed star, nebula, the China and the international title of galaxy, the constellation line, the constellation boundary line, the constellation art pattern, the planet indication reaches the lunar halo effect on bright moon next door, can select display orientation/height coordinate grid, right ascension/declination coordinate grid, and can between horizontal coordinate and equatorial coordinate two individual system, switch; The scene of sky under the speed of different asynchronism(-nization)s can be demonstrated and chronometer phenomenons such as meteor shower, solar eclipse, lunar eclipse, occultation can be demonstrated; Also can demonstrate 430,000 celestial body targets such as whole day 9 stars such as grade, surpass 600,000 fixed stars; Amplify or your interested project of mark; Can check the scene that surpasses more than 100 deep space object; Profile, the title of constellation be can check, the image of each constellation or the planisphere picture of whole starry sky watched.
These chronometer phenomenons that this calculation element 10 is demonstrated can be called as the starry sky image data, and be reduced into the 3 D stereo starry sky image at last and project on the ball curtain 30 by projection arrangement 20, and true to nature showing on ball curtain 30.
As shown in Figure 2, this calculation element 10 can specifically comprise:
These starry sky image data can be the real-time chronometer phenomenon films that comes out according to above-mentioned real-time starry sky data computation, it also can be the special-purpose film of under the non real-time mode, having made of digital ball curtain, no matter be real-time chronometer phenomenon film or the special-purpose film of the digital ball curtain of having made, can carry out these films of playback, if in real time during the chronometer phenomenon film, this real-time chronometer phenomenon film can be recorded when playing, and be stored in this calculation element, when playback, directly from this calculation element 10, read; If the digital ball curtain film of having made directly reads from this calculation element 10, carry out playback and get final product; Like this, no matter this system where watches this film when, can play by calling the film in this calculation element 10, can be applied to low-cost science popularization rover station (car) and middle and primary schools and promote Popular Science Education, enlarges its application.
As shown in Figure 3, above-mentioned processing module 103 can specifically comprise:
Rendering unit 1031 is used to utilize the starry sky render engine to call the starry sky database and obtains these starry sky data and this and play up parameter information, and to these starry sky data with play up parameter information and carry out the three-dimensional picture processing, generates three-dimensional starry sky image data;
Among this embodiment, this rendering unit 1031 can be the built-in starry sky render engine of this calculation element 10, with starry sky data 3D starry skyization.With the computing machine is example, and detailed process is: the CPU of computing machine is responsible for calling the starry sky data message and handles interactive instruction, and it is graphical with data three-dimensional that GPU (image processor) then utilizes render engine to call the open GL storehouse of computing machine.Required data message at first calls the internal memory from hard disk, and GPU chooses from internal memory and plays up information needed and call in the video memory, at last by the video card output image.
Certainly, the process with starry sky data 3D starry skyization is not limited to this like this, can also adopt alternate manner to handle, as utilizes the treatment scheme of special-purpose planetarium to handle, and can obtain the starry sky image data equally.When playing film, can call corresponding demoder and decode, packed data is reduced into image output.
In addition, as shown in Figure 4, the output module 104 of this calculation element 10 comprises:
Anamorphose processing unit 1041 is used for the size according to described ball curtain, and described starry sky image is carried out deformation process, generates to be fit to the starry sky image that described ball curtain shows; And/or
Hardware-accelerated unit 1042, the starry sky image that is used for being fit to described ball curtain demonstration adopts hardware-accelerated pattern to export.
Among this embodiment, can adopt hardware-accelerated pattern during broadcast.For ball curtain film, be to have deformation owing on the ball curtain, play film, when handling film, need do deformation process so to original figure, when watching, guarantee normal visual effect.
When specifically exporting film, digital photos can also be outputed on the ball curtain, as central authorities a virtual hemispherical slide projector is arranged at arenas.Digital photos may be displayed on the ball curtain the astronomical photo as other celestial body in background, travelling scenery or the universe of scene.
In above-mentioned digital astronomical phenomena system of the present invention, specifically, projection arrangement can be a projector, flake wide-angle lens and scope that this projector has angle adjustable are the resolution of 768*768-1920*1920, among this embodiment, the sharpness that adopts the flake wide-angle lens can enlarge the projection scope and improve image.
When being a projector when projection arrangement, the angle adjustable of the flake wide-angle lens of this projector is: 160 degree-180 degree, resolution is 768*768-1080*1080.
And when projection arrangement is two projectors, angle adjustable 100 degree-120 degree of the flake wide-angle lens of projector, resolution is 1024*1024-1920*1920, flake wide-angle lens place also is provided with an optics anti-dazzling screen, image carries out fusion treatment in the overlapping region that anti-dazzling screen is used for described projector is throwed, image after the fusion treatment is just as casting out from a projector, and the process of fusion treatment can adopt any image co-registration treatment technology in the prior art.
When projection arrangement was three or three above projectors, the angle adjustable of its flake wide-angle lens was 80 degree-90 degree, and resolution is 768*768-1920*1920.
As shown in Figure 5, the ball curtain 30 in the digital astronomical phenomena system of embodiments of the invention can specifically comprise:
One detachable cylindrical stent 301, it has a sloped top face 3011;
One detachable semisphere support 302, it is fixed on this cylindrical stent 301, and its bottom opening face 3021 coincide with this sloped top face 3011 of this cylindrical stent 301;
One semisphere internal layer projection screen 303 is fixed on after it trails on this semisphere support 302, is used to show above-mentioned starry sky image;
One semisphere skin blocks curtain 304, and its back that trails is combined into a seal with this semisphere internal layer projection screen 303;
One air pump 305, it is installed in this semisphere skin and blocks on the curtain 304, and when this air pump 305 was bled, this internal layer projection screen 303 and described skin blocked between the curtain 304 and form negative pressure, and were fixed on this semisphere support 302.
Fig. 6 is the front elevation of ball curtain shown in Figure 5;
Fig. 7 last internal layer projection screen 303 of ball curtain covering shown in Figure 5 and skin block the synoptic diagram behind curtain 304 and the air pump 305;
As shown in Figure 8, be the longitudinal sectional view of ball curtain shown in Figure 5, above-mentioned cylindrical stent 301 comprises:
One foundation ring beam, 306, one top beams 307 and at least two column shape keel 308, these column shape keel 308 removably connect with this foundation ring beam 306 or top beam 307.Specifically, can adopt bolt or buckle to connect, make the ball curtain structure stable like this, be easy to remove and install.
Fig. 9 is the vertical view of above-mentioned ball curtain, and above-mentioned semisphere support 302 can comprise:
One ball base map beam 309, at least two arcuation keel 310, an end of these arcuation keel 310 and ball foundation ring beam 309 removably connect, and the other end of at least two arcuation keel 310 is connected as a single entity, and forms the ball top 311 of this semisphere support 302.One end of these arcuation keel 310 can adopt bolt or buckle to be connected with ball foundation ring beam 309 concrete connected modes, makes the ball curtain structure stable like this, can effectively prevent the distortion of ball curtain, is easy to remove and install.
Wherein, in above-mentioned cylindrical stent 301 and the semisphere support 302, the keel that keel can be made for aluminum alloy materials, and has foldability, make whole ball curtain structure more stable like this, can effectively prevent the distortion of ball curtain, all erection joints place can be connected by bolt or buckle.Whole ball curtain weight is moderate, is easy to remove and install.
In addition, when internal layer projection screen 303 and skin block curtain 304 and be combined into seal, can pass through the zip-tie integrator, described slide fastener position also is attached with magic tape, prevents gas leakage.And this skin blocks curtain 304 can adopt flannelette, be installed in the pump-line that skin blocks on the curtain 304 and connecting air pump, along with making between the double-deck curtain, the work of air pump forms negative pressure, and firm attachment is on keel, thus since ectonexine block the semidiameter of curtain make the internal layer projection screen form one stable hemispherical.The internal layer projection screen is selected the soft curtain of high-quality projection for use, inside surface spraying whitewash, and gain is 0.8～1, can guarantee the brightness of curtain and be incident upon image definition on the curtain.
This digital astronomical phenomena system is in concrete the application, can adopt a projector or two projectors or the projector more than two as above-mentioned projection arrangement 20 according to actual conditions, as shown in figure 10, when using a projector, the angle adjustable of the flake wide-angle lens of this projector is: 160 degree-180 degree, and resolution is 768*768-1080*1080; This projector is rotatable in the center of ball curtain, is projected in the position of ball curtain central point according to the radius adjustment of actual ball curtain.As can be seen from the figure fish-eye angle has determined the distance of projector apart from ball curtain base, and the projected pixels of projector has determined the ball curtain diameter that guarantees to use under the situation of picture quality separate unit projector≤8 meters.
As shown in figure 11, when using two projectors, the angle adjustable of projector's flake wide-angle lens is 100 degree-120 degree, and resolution is 1024*1024-1920*1920, lays respectively at the just preceding and dead astern of ball curtain.As can be seen from the figure for ball curtain system, only need the above part in projection ball curtain base.Projector projects the following light in ball curtain base need do shading treatment at the camera lens place, the image that projects ball curtain zenith zone overlaps, adopt anti-dazzling screen that image is merged at this position, the image of lap is appeared to from a projector, cast out the same, can accomplish the seamless spliced of image, fusion method can adopt existing any image interfusion method, can reach 1.5 times of separate unit projector projected pixels through the image pixel after merging, thereby make the diameter range of selecting the ball curtain for use expand 10 meters to.
When projection arrangement is three or three when above, the angle adjustable of its flake wide-angle lens is 80 degree-90 degree, and resolution is 768*768-1920*1920.
To sum up, digital astronomical phenomena system of the present invention, comprised calculation element 10, projection arrangement 20 and detachable ball curtain 30, but also can comprise sound system, characteristics with Highgrade integration, not only can be by this calculation element real simulation any time starry sky astrology all over the world, also can carry out simultaneously whole world curtain video frequency program playback, compare with the arenas of other types, has the visual angle broadness, feeling of immersion is strong, theme is outstanding, high in technological content, characteristics such as effect is true to nature, play content contains geography, historical, humane, science and technology, many-sided movie and video programs such as medical science.Each equipment in this digital astronomical phenomena system is not only the key instrument of astronomical science popularization, also the repertoire of ball screen cinema is contained wherein, has expanded application greatly, provides a kind of not only limitation astronomical, the facility that also can carry out multi-functional education, amusement.Because volume is less relatively, easy installation and removal, characteristics such as safety and environmental protection make it be highly suitable for small-sized science and technology center, science car, theme park, school, community science popularization center etc.
This calculation element not only can be used as the digital astronomical phenomena instrument as the source of optical projection system image, can also play the celestial bodies motion of real-time rendering and can be used as the film that the ball screen cinema is play special making.
And digital astronomical phenomena instrument interface and ball curtain broadcast interface can control under a software interface with calculation element, and the user can be switched astronomical phenomena performance and ball curtain program at any time.
And this calculation element can also have a radio hand-held equipment, utilizes this radio hand-held equipment Long-distance Control that best ease for use equipment in the industry is provided.It is easy to learn and use, and icon is directly perceived, and Any user can be convenient to use it.Need not to be provided with independent control computer, do not need the projection personnel of complicated software interface and specialty, can play the demonstration of film and starry sky.
Above-mentioned a whole set of digital astronomical phenomena system is simple in structure, is convenient to installation and removal, and the installation and removal of portable ball curtain only need 10～15 minutes time, and are convenient and swift; And ball curtain material is by strict examination criteria, anti-flammability height; Whole system is based on open PC framework, and system compatibility is good, operation stability.Modular system design means that upgrading afterwards is also very convenient, is upgraded to higher version easily, and new function is added in patch installing, makes the user realize its superiority conscientiously.
In addition, embodiments of the invention also provide a kind of method of deal with data, and this method is used for digital astronomical phenomena system, comprising:
Step 121 is obtained the starry sky data; These starry sky data can be real-time starry sky data, also can be non real-time starry sky data; These real-time starry sky data can be obtained by meeting international third party's star catalogue, and are stored in the calculation element of digital astronomical phenomena system, and the data in this star catalogue can be upgraded, and also can allow user's manual modification; Non real-time starry sky data are the playback to real-time starry sky data, as, play the program of some complicated starry sky image data, can handle under the non real-time mode program in advance, the program storage of handling well according to real needs, can be selected these programs of playback in this calculation element;
Step 122 is carried out the starry sky processing to described starry sky data, generates starry sky image data, and this starry sky image reduction of data is become starry sky image;
Step 123 outputs to projection arrangement in the described digital astronomical phenomena system with described starry sky image, and by described projection arrangement described starry sky image is outputed on the ball curtain of described digital astronomical phenomena system and show.
These starry sky image data can be the real-time chronometer phenomenon films that comes out according to above-mentioned real-time starry sky data computation, it also can be the special-purpose film of under the non real-time mode, having made of digital ball curtain, no matter be real-time chronometer phenomenon film or the special-purpose film of the digital ball curtain of having made, can carry out these films of playback, if in real time during the chronometer phenomenon film, this real-time chronometer phenomenon film can be recorded when playing, and be stored in this calculation element, during with playback, directly from this calculation element, read; If the digital ball curtain film of having made directly reads from this calculation element, carry out playback and get final product; Like this, no matter this system where watches this film when, can play by calling the film in this calculation element, can be applied to low-cost science popularization rover station (car) and middle and primary schools and promote Popular Science Education, enlarges its application.
Wherein, above-mentioned steps 122 can specifically comprise:
Step 1221 utilizes the starry sky render engine to call the starry sky database, obtains described starry sky data and plays up parameter information;
Step 1222 is carried out the three-dimensional picture processing with described starry sky data and the described parameter information of playing up, and generates three-dimensional starry sky image data;
Step 1223, export described starry sky image before, described three-dimensional starry sky image data are decoded, generate described starry sky image.
With the computing machine is example, and the detailed process of above-mentioned steps is: the CPU of computing machine is responsible for calling the starry sky data message and handles interactive instruction, and it is graphical with data three-dimensional that GPU (image processor) then utilizes render engine to call the open GL storehouse of computing machine.Required data message at first calls the internal memory from hard disk, and GPU chooses from internal memory and plays up information needed and call in the video memory, at last by the video card output image.
Certainly, the process with starry sky data 3D starry skyization is not limited to this like this, can also adopt alternate manner to handle, as utilizes the treatment scheme of special-purpose planetarium to handle, and can obtain the starry sky image data equally.When playing film, can call corresponding demoder and decode, packed data is reduced into image output.
Wherein, above-mentioned steps 123 can specifically comprise:
Step 1231 is carried out deformation process to described starry sky image, generates to be fit to the starry sky image that the ball curtain shows in the digital astronomical phenomena system;
Step 1234 adopts hardware-accelerated pattern to export the starry sky image that is fit to described ball curtain demonstration.
Among this embodiment, can adopt hardware-accelerated pattern during broadcast.For ball curtain film, be to have deformation owing on the ball curtain, play film, when handling film, need do deformation process so to original figure, when watching, guarantee normal visual effect.When specifically exporting film, digital photos can also be outputed on the ball curtain, as central authorities a virtual hemispherical slide projector is arranged at arenas.Digital photos may be displayed on the ball curtain the astronomical photo as other celestial body in background, travelling scenery or the universe of scene.
This method is by obtaining the starry sky data, go out the celestial bodies motion of real-time rendering and can be used as the film that the ball screen cinema is play special making according to this starry sky digital simulation, powerful 3D figure real-time rendering engine, with real-time mode play up the model of complicated and high degrees of detail and with its projection broadcast on the ball curtain.During floor show, computing machine uses the model data that leaves in the hard disc data storehouse, and controls program data according to real-time command.Provide a kind of not only limitation astronomical, the facility that also can carry out multi-functional education, amusement.Because volume is less relatively, easy installation and removal, characteristics such as safety and environmental protection make it be highly suitable for small-sized science and technology center, science car, theme park, school, community science popularization center etc., have expanded the application of digital astronomical phenomena system greatly.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a digital astronomical phenomena system is characterized in that, comprising:
One calculation element is used to obtain the starry sky data, and described starry sky data are carried out the starry sky processing, generates starry sky image data, and described starry sky image reduction of data is become starry sky image output;
At least one projection arrangement is used to receive described starry sky image, and described starry sky image is throwed away;
One detachable ball curtain is used to receive the described starry sky image that described projection arrangement casts out, and shows described starry sky image.
2. digital astronomical phenomena system according to claim 1 is characterized in that, described calculation element comprises:
Acquisition module is used for obtaining described starry sky data from star catalogue;
Memory module is used to store the described starry sky data that described acquisition module obtains;
Processing module is used for reading the described starry sky data of described memory module, and described starry sky data are played up processing, generates described starry sky image data, and described starry sky image reduction of data is become starry sky image;
Output module is used to export described starry sky image.
3. digital astronomical phenomena system according to claim 2 is characterized in that, described processing module comprises:
Rendering unit, be used for utilizing the starry sky render engine to call the starry sky database of described memory module, obtain described starry sky data and play up parameter information, described starry sky data and the described parameter information of playing up are carried out the three-dimensional picture processing, generate three-dimensional starry sky image data;
Decoding unit is used for before described output module is exported described starry sky image, and described three-dimensional starry sky image data are decoded, and generates described starry sky image.
4. digital astronomical phenomena system according to claim 2 is characterized in that, described output module comprises:
The anamorphose processing unit is used for the size according to described ball curtain, and described starry sky image is carried out deformation process, generates to be fit to the starry sky image that described ball curtain shows; And/or
Hardware-accelerated unit, the starry sky image that is used for being fit to described ball curtain demonstration adopts hardware-accelerated pattern to export.
5. digital astronomical phenomena system according to claim 1 is characterized in that, described projection arrangement has: the flake wide-angle lens of angle adjustable and scope are the resolution of 768*768-1920*1920.
6. digital astronomical phenomena system according to claim 5 is characterized in that, when described projection arrangement was a projector, the angle adjustable of described flake wide-angle lens was 160 degree-180 degree, and described resolution is 768*768-1080*1080;
When described projection arrangement was two projectors, the angle adjustable of described flake wide-angle lens was 100 degree-120 degree, and described resolution is 1024*1024-1920*1920;
When described projection arrangement was the above projector of three or three, the angle adjustable of described flake wide-angle lens was 80 degree-90 degree, and described resolution is 768*768-1920*1920.
7. digital astronomical phenomena system according to claim 1 is characterized in that, described ball curtain comprises:
One detachable cylindrical stent has a sloped top face;
One detachable semisphere support is fixed on the described cylindrical stent, and the described sloped top face of its bottom opening face and described cylindrical stent is coincide;
One semisphere internal layer projection screen is fixed on after trailing on the described semisphere support;
One semisphere skin blocks curtain, and the back that trails is combined into a seal with described semisphere internal layer projection screen;
One air pump, being installed in described semisphere skin blocks on the curtain, when described air pump was bled, described internal layer projection screen and described skin blocked and form negative pressure between the curtain, and described internal layer projection screen and described skin block curtain and be fixed on the described semisphere support.
8. digital astronomical phenomena system according to claim 7 is characterized in that, described cylindrical stent comprises:
One foundation ring beam, a top beam and at least two column shape keel, described column shape keel and described foundation ring beam or top beam removably connect.
9. digital astronomical phenomena system according to claim 7 is characterized in that, described semisphere support comprises:
One ball foundation ring beam, at least two arcuation keel, an end of described arcuation keel and described ball foundation ring beam removably connect, and the other end of described at least two arcuation keel is connected as a single entity, and forms the ball top of described semisphere support.
10. according to Claim 8 or 9 described digital astronomical phenomena systems, it is characterized in that described keel are the keel that aluminum alloy materials is made.
11. digital astronomical phenomena system according to claim 7 is characterized in that, described internal layer projection screen and described skin block curtain by the zip-tie integrator, and described slide fastener position also is attached with magic tape.
12. digital astronomical phenomena system according to claim 7 is characterized in that, the inside surface of described internal layer projection screen scribbles whitewash, and it gains between 0.8～1.
13. a ball curtain is characterized in that, comprising:
One detachable cylindrical stent has a sloped top face;
One detachable semisphere support is fixed on the described cylindrical stent, and the described sloped top face of its bottom opening face and described cylindrical stent is coincide;
One semisphere internal layer projection screen is fixed on after trailing on the described semisphere support;
One semisphere skin blocks curtain, and the back that trails is combined into a seal with described semisphere internal layer projection screen;
One air pump, being installed in described semisphere skin blocks on the curtain, when described air pump was bled, described internal layer projection screen and described skin blocked and form negative pressure between the curtain, and described internal layer projection screen and described skin block curtain and be fixed on the described semisphere support.
14. the method for a deal with data is used for digital astronomical phenomena system, it is characterized in that, comprising:
Obtain the starry sky data in many star catalogues;
Described starry sky data are carried out the starry sky processing, generate starry sky image data;
Described starry sky image reduction of data is become starry sky image;
Described starry sky image is outputed to projection arrangement in the described digital astronomical phenomena system, and by described projection arrangement described starry sky image is outputed on the ball curtain of described digital astronomical phenomena system and show.
15. method according to claim 14 is characterized in that, described described starry sky data is carried out the starry sky processing, the step that generates starry sky image data comprises:
Utilize the starry sky render engine to call the starry sky database, obtain described starry sky data and play up parameter information;
Described starry sky data and the described parameter information of playing up are carried out the three-dimensional picture processing, generate three-dimensional starry sky image data;
Describedly become the step of starry sky image to be specially described starry sky image reduction of data:
Described three-dimensional starry sky image data are decoded, generate described starry sky image.
16., it is characterized in that described step with described starry sky image output comprises according to claim 14 or 15 described methods:
Described starry sky image is carried out deformation process, generate the starry sky image that is fit to described ball curtain demonstration;
Adopt hardware-accelerated pattern to export the starry sky image that is fit to described ball curtain demonstration.
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