WO2004055755A1

WO2004055755A1 - A rotatable projective map of the southern and northern hemisphere from the same point of view

Info

Publication number: WO2004055755A1
Application number: PCT/CN2003/001006
Authority: WO
Inventors: Gangming Yan
Original assignee: Gangming Yan
Priority date: 2002-12-16
Filing date: 2003-11-27
Publication date: 2004-07-01
Also published as: AU2003289629A1; CN1508764A; CN1261916C

Abstract

A rotatable projective map of the southern and northern hemisphere from the same point of view has a base frame. A coupled rotor disc assemble is mounted on the base frame, and has projective map of southern and northern hemisphere thereon. The projective map can be achieved in such a projective manner as following, dividing the sphere into southern hemisphere and northern hemisphere along the equatorial plane, the graticule of the southern and northern hemisphere is orthoaxis azimuthal map projection, setting a laying viewpoint on the axial line which is between the north superterranean pole and the north celestial pole, for obtaining the projective map of the northem hemisphere by transmitting the projection plane, and the projective map of the southern hemisphere by reflecting the projection plane. The present invention can accentuate the balanced expressivity of each area, stand out the autorotation character of the celestial body, and has some characters, such as, convenient and facilitating reading, well defined and direct viewing, real time image, and strengthening all the seven seas in one, and so on.

Description

Rotatable north and south hemisphere synopsis map projection map Technical field

The present invention relates to a world map, and in particular, to a rotatable southern and northern hemisphere that can be widely used in meteorology, oceanography, geography, geology, as well as research, development of disciplines such as navigation, aviation, aerospace, interstellar development, and space exploration. Isotactic map projection map. Background technique

A globe is a very effective tool for us to observe the earth, understand the earth, and 'research the earth. It is a geometric body that is reduced by a certain proportion, so spherical coordinates and graphics are non-deformable. In addition to the inconvenience of carrying and storing, there is a disadvantage that people cannot observe the other half of it at the same time.

A map is a plane carrier describing things on the surface of the earth. Through the map, three-dimensional objects on the surface of the earth can be summarized and drawn into a two-dimensional planar form. It has regionality and scalability. Its advantages are portability and intuitive use. In today's human society, Many of the activities are inseparable from the use of maps.

At present, the general world maps used for wall mounting and hanging are based on the consideration of the physiological characteristics of the human body standing close and clear reading range and the convenience of using reading, so it is impossible to make a large scale map. The more commonly used ordinary world maps are below 1: 30 million scales, and the symbols and densely labeled areas on this map are not allowed to represent the settlements or symbols between adjacent 80km, and this small scale map Its actual measurement accuracy is very poor.

It is very difficult to generalize the world in such a small display area. Therefore, the map symbols in the currently used small-scale world maps have to be omitted, the map elements are simplified, and the comprehensive maps are tightened, resulting in a decline in the value of use. In fact, people use them as intercontinental maps, sea and land maps.

"Map projection" is a method of turning spherical coordinates to a plane using mathematical rules. Due to the geometric deformation characteristics of map projections, a variety of map projection systems (latitude and longitude lines) have been derived. According to different purposes, there are many versions of ordinary world maps published and used in various countries.

In the popular world maps, the classification of the shape of the warp and weft network is mostly carried out by using tangent meridians of the busbars to expand the projection display area, including A. rectangle, B. oval, C. east, Western hemisphere, D. fractal, E. star, F. butterfly, etc. Regardless of the graphics used, there are the following deficiencies in reading and using:

Correction page (Article 9Ί) 1. The poles are not shown in the figure; (projection plane A)

2. The poles have large fractures and deformations; (projection surface, B, C)

3. Multilobed fissures in the southern hemisphere, Antarctica is intangible and differentiates the global integrity; (projection plane £, F)

4. Multi-lobed splits in the southern and northern hemispheres, focusing on the light side; (projection plane D).

5. Separation of symmetry between north and south latitudes; (Projection ® D, E, F)

6. Deformation and distortion in the other hemisphere area beyond 90 ° from the central meridian are intensified; (Projection plane eight, B, E,

F)

7. The interval between adjacent meridians or latitudes is a non-unequal curve (except Mercator projection and Gower projection); (projection planes A, B, C, D, E, F);

8. It is difficult to reflect the change of horizontal parallel, the surface point line speed, and the degree of sunlight on the graphic grid; (projection planes A and D);

9. Large-scale picture is inconvenient to read (the upper part of the picture is far from the horizon); (projection plane, B, C, D, E, F)

10. Failure to intuitively reflect the relationship between the rotation characteristics of the "planet" and the time domain; (projection person, B, C, D, E, F)

11. The trajectory of the sub-satellite point is a parabola, which is difficult for non-professionals to understand. · (Projector, B, D, E,

F)

12. Due to the small deformation of the central area and the self-subjectiveness of each country's publishing and drawing, the emphasis is placed on centering. Therefore, there is currently no uniform version of the world map graphic in many countries around the world. (Projection surface eight, B, D, E, F)

In the traditional hemispherical framing map projection map, the technical effect of its cutting and unfolding is regarded as the other hemisphere is rotated 180 ° around the axis fulcrum on the equator, so that the top of the crown is projected after tangent to the projection plane, that is, east, The axial line of the fulcrum cut in the western hemisphere is perpendicular and tangent to the equator (see Figure 1); the axial line of the fulcrum cut in the southern and northern hemispheres is parallel to the equator and tangent to the equator (see Figure 2). Obviously, these two are "mechanical turning crown hemispherical framing and re-layout" world maps, but this type of hemispherical cutting framing has less than half of the edge distortion compared with other map projection systems.

On the projection map of the horizontal axis azimuth map cut by the eastern and western hemispheres, since each hemisphere has its own central meridian, the deformation of the edge region and the polar regions is smaller than that of the rectangle, but because the rotation axis is 90 ° perpendicular to the horizon, it is used It looks much the same as a rectangular chart or an oval chart (see Figure 1).

Correction page (Article 91) On the positive and negative azimuth map projection maps cut by the northern and southern hemispheres, because the values of the east and west longitudes of the hemispheres are opposite, the continuity of the northern and southern hemispheres is very poor, and the area of the upper graph is inverted, which is easy to cause Optical illusion, so it has been used as an area map centered on the north and south poles in the past

(See Figure 2).

In the lunar (or other planet) instrument or its projection map made from satellite images, because the corresponding celestial body is a rocky planet lacking liquid water, and because there are no settlements, cities, rivers, shorelines of lakes and seas, transportation Lines, borders, political districts and other basic map symbols, so its map drawing is a lack of "7_R quasi-origin" plan view. Although the light shading method is used, its terrain is undulating, and the three-dimensional effect of elevation changes is weak. The information is single, and even non-professionals tend to have obvious illusions and regard craters as highlands. In short, this kind of map is a perspective projection without "sea level". It can be seen that its appreciation is greater than its use value.

Invention Disclosure

The purpose of the present invention is to overcome the deficiencies in the prior art mentioned above and provide a new type of world map that emerges dynamically, balanced, intuitive, and visual between a traditional map and a globe, so that the common drawbacks of the traditional world map The improved view also shows the elements that were difficult or impossible to express in the past, making it more convenient, easy to read, clear and intuitive, and real-time. It also strengthens the globally integrated rotatable map projection map of the northern and southern hemispheres.

The object of the present invention can be achieved by the following measures:

This rotatable map map of the northern and southern hemispheres with the same viewpoint is special in that the map is provided with a base, which is equipped with a linkage turntable assembly, and the turntable assembly is provided with a map projection map of the northern and southern hemispheres. Obtained as follows: The spheres are divided into the northern and southern hemispheres along the equatorial plane. The shapes of the longitude and latitude lines of the southern and northern hemispheres are also positive azimuth projections. A planned viewpoint is set on the axis between the north and south poles to make the map of the northern hemisphere The projection map is obtained through the projection plane, and the map projection map in the southern hemisphere is obtained from the projection plane. This design conforms to people's visual mechanism, making the impressions of the projected maps of the southern and northern hemisphere maps from one point, and changes the opposite opposition and asymmetry caused by the observation of the two viewpoints due to the traditional separation of the southern and northern hemispheres. The linked turntable assembly can move the left and right turntables in the same direction and synchronously to achieve the "rotation" purpose. Therefore, the flat world map is time-domain and dynamic. As a result, the map motions of the southern and northern hemispheres are mapped with the image of the planetary rotator. Visual harmony. Correction page (Rule 91) The object of the present invention can also be achieved by the following measures:

The rotating assembly includes an active turntable with disc teeth on the edge and a left turntable and a right turntable which are respectively engaged with the drive turntable, and they are mounted on the base through bearings.

The active turntable can be rotated manually or electrically. In the manual mode, the active turntable can be rotated manually at will by the hand wheel mounted on it. The ratio of the speed of the linkage between the active turntable and the left and right turntables is 2: 1; In the electric mode, the active turntable can be driven by the electric turntable, and can perform fast forward and reverse off-time control rotation and return to the original position; the linkage speed ratio between the electric turntable, the active turntable and the driven turntable is 1: 1: 1.

The electric turntable is driven by a clock-controlled stepping motor assembly. The motor assembly is a timing device. The start time at 0: 0 every day corresponds to the droop line of the international date change line. The hour hand on the clock face is counterclockwise. It runs in the same direction and synchronized with the projected map, and the minute and hour hands rotate in the same direction.

The linkage timing of the projected maps of the southern and northern hemisphere maps is that the Greenwich prime meridian is at the top and the middle, the international date change line is below, and its 180 ° east and west longitude lines coincide with the vertical line.

Supplementary drawings are provided at the pedestal gap below the mid-dawn line passing through the center of the map of the southern and northern hemispheres to indicate the state of the area across the equatorial administrative region.

The longitude and latitude lines of the projected maps of the southern and northern hemisphere maps are three-dimensional spatial networks. When an unnatural map is applied, the altitude between the grid surface and the horizontal origin can be set to zero by default. When a natural map is applied, note in the legend or on the border of the map. Note the positive and negative absolute values relative to the level origin; the corresponding latitude and longitude line network can simultaneously represent the superposition of different elevation spatial elements, and they can all be misplaced, misplaced, or encrypted.

The north and south hemisphere map projection maps of the positive and negative azimuth projections of the maps can correspond to orthographic projections, evening projections, spherical projections, spherical projections, equal-area azimuth projections, isometric azimuth projections, equiangular projections One of the azimuth projections, or the same hemisphere map projection map with different map contents applied.

Directional signs indicating the direction of the coordinate points are distributed in the low-latitude region of the hemisphere map, and the north-south direction lines of the directions coincide with the meridian points of the coordinate points; the corresponding world time zone symbols of longitudes are marked in the map frame.

The maps obtained by projecting the same-viewpoint maps of the northern and southern hemispheres can all be processed by "Geographic Information System" (GIS) and expressed by electronic screen system or optical projection system.

Compared with the prior art, the present invention has the following advantages:

1. Attaching importance to the existence status of poles and its impact on human beings. Only the Northern and Southern Hemispheres positive axis azimuth to correct page (Rule 9 ^a) The map projection can most directly and scientifically express the general situation of the polar regions in order to cater to the increasing attention and increase in polar scientific research and development activities; its mapping principles are balanced and equal, reflecting the interdependent and opposite effects of each region, and clearly showing global integration The concept is clear; the land and sea distribution is obvious, cherish the earth's resources at a glance; more directly reflects the opposite climatic characteristics between the northern and southern hemispheres; strong dynamic, intuitive time difference, the chart interprets the definition and division of world time zones.

2. In many map projection systems, the positive azimuth is uniquely projected: As the gallery is unchanged, the meridian is unchanged, and only the semi-longitude value of the latitude circle is changed relative to the different deformation characteristic coefficients, and the corresponding latitude and longitude network can be obtained. Based on the unique characteristics of the invention, the northern and southern hemisphere synoptic map projection maps with rotating components based on this unique feature are applied to the electronic display screen supported by 'Geographic Information System' (GIS), which will make the positive azimuth projection. The advantages are exerted to the fullest extent; because the proposed viewpoints are all on the celestial-arctic axis, that is, the "one viewpoint effect", the traditional south and north hemisphere positive axis azimuth projection division and the imposition of the split and reverse opposition can be eliminated, and its The advantages and characteristics of the positive azimuth projection can be released and used in the world map, and the global integrity, symmetry, coherence, perception, and comprehension are strengthened.

3. As the hemispheric map projection map of this design is set on the dial, according to different purposes and objects, you can instantly change the north and south hemisphere positive axis azimuth map projection map graphics drawn by different deformation properties. This multi-purpose It is especially suitable for teaching demonstration and application to screen display. According to the special purpose and requirements, the two sets of maps with the same hemisphere positive axis orientation projection map with different map contents can play a dual purpose.

4 Due to the linkage of the active dial and driven dial, it is possible to map the north and south hemispheres in the same direction and synchronize with the "rotation". The function of real-time comparison of the time difference between different time zones and regions is added. The use of global map projection is both clear and easy The dynamic function of the globe, and the clever use of the transposition sector along the vertical line, finally increased the scale by 3.14 times year-on-year, and the expandable area can be increased by 4.9 times.

5. The reflection observation of the projection map of the southern hemisphere map has a unique concept. The projection imaging of the southern and northern hemisphere maps is consistent with the observation of the same point of view of the object to stimulate the physiology of the brain. The bottleneck of the azimuth projection mode makes it practically used in the production of 'world maps', and creates conditions for coordinating the symmetry and synchronization of the northern and southern hemispheres.

6. In the present invention, auxiliary elements of positive and negative elevation values of the longitude and latitude lines are specially added. One of them can be used on the same developable surface, and the corresponding spatial elements on the longitude and latitude lines of different elevation values can be superimposed and displayed. Corrected page (thin 剡 91 ^) Make the two-dimensional plane map full of three-dimensional space, and achieve the multi-map integration effect. The second can be a rocky planet lacking liquid water (sea level), and establish a network of latitude and longitude lines for reference (level origin) to project the map of the planet. Create basic mathematical elements; As two factors of solar radiation and the rotation bias of the earth are the main causes of climate formation, when applied to natural maps:

① Express the real-time cloud map, barometric map, monsoon map, precipitation map, overlay map, etc. at the corresponding altitude.

② Express the real-time currents, cold current maps, and superimposed ocean current maps at the corresponding altitude.

③ Express the continental shelf geomorphology map, sea floor geological map, land bottom geological map, etc. at the corresponding altitude and depth;

④. Superimposed artificial spacecraft orbits around the star;

7. When the time-controlled motor assembly and the hour hand are set in the automatic turntable, it will become a "map-type solar time demonstration instrument".

8 When used in suspension, its decoration, appreciation, and practicality are very strong, which confirms the view that "carography is a collection of science and art".

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of a traditional horizontal and axial azimuth map projection map cut from the eastern and western hemispheres.

FIG. 2 is a schematic diagram of a conventional positive and negative azimuth map projection map cut through the northern and southern hemispheres.

FIG. 3 is a schematic diagram of a projection system of a same-view map projection map of the northern and southern hemispheres of the present invention.

Figure 4 is a schematic diagram of a comparison of projection maps.

FIG. 5 is a schematic diagram of a projected map of the same-viewpoint maps of the northern and southern hemispheres of the present invention.

FIG. 6 is a structural schematic diagram of a manual mode turntable assembly and a base of the present invention.

FIG. 7 is a schematic view of the Xibuguan of the present invention.

FIG. 8 is a schematic structural diagram of an electric-type turntable assembly and a base of the present invention.

FIG. 9 is another schematic diagram of the appearance of the present invention.

FIG. 10 is a schematic diagram expressed by an electronic screen system or an optical projection system according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be further described in detail below with reference to the accompanying drawings:

FIG. 3 is a shadow map of the same-viewpoint map projection system of the northern and southern hemispheres according to the present invention. The system obtains a positive-axis azimuth map projection map from a map projection mode and a map observation mode set.

The map projection mode is shown in Figure 3. The projection plane of the network of latitude and longitude (N in 3A is the correction page for the projection of the northern hemisphere (Article 91 of the details). (S in 3B is the southern hemisphere projection plane) cut at the ground surface poles 61, 51, and on the diameter extension line perpendicular to the projection surface, the projection light source 54 is placed from the center of the sphere 55 to infinity, due to the position of the light source Different, the shape of the warp and weft network formed by the shadow is different, that is, the deformation properties are different. For example, if the light source 54 is located at the center of the sphere, it is a projection of the center of the sphere, where it is located at the sphere is a projection of the center of the sphere, at the outside of the sphere is the projection of the center of the sphere, and at the infinity is the orthographic projection. .

The map observation mode is also shown in Figure 3. For the observation of the N-projection plane and the S-projection plane, the proposed point of view 53 is located on the 52 segment of the celestial axis at the same time. The resulting map image features are different, making the northern hemisphere map projection map transparent. Obtained through the projection plane N, the southern hemisphere map projection map is obtained from the reflection plane S Obviously, as a result of the reflection from the projection plane S, the southern hemisphere map projection map is exactly 180 ° reversed from the traditional southern hemisphere map projection map shown in Fig. 2, while the northern hemisphere's graphic exhibition remains unchanged.

In FIG. 4, when the radius R of the large circle of the globe model in FIG. 4A is set to 1, the equator length is CF2 ir R, dS or; the figure in FIG. 4B is based on the equator and is equal to the IT scale of 4A. The elliptical "world map" produced by Robinson projection at the same scale, it is clear that the level of detail of both maps is quite the same. The developable area of its Robinson projection is obtained from the sphere surface formula S = 4 π ^{2 in} 4A (refer to the scale in Figure 4).

In FIG. 4, 4C is the same-view map projection map of the northern and southern hemispheres of the present invention. The radius r ₃ of the hemisphere map projection map is equal to the height of the Robinson projection map in 4B, that is, the distance E in the figure, that is, The effective upper and lower margins of the human body standing close to clearly read the sight range. It can be seen that, due to the design of the north and south hemisphere map projection maps of the present invention rotating in the same direction and synchronously around the mandrel, the upper half of the figure far from the effective clear reading area can be freely transferred to the effective sight range below.

Obviously, compared with the common meridian world map of FIG. 4B, when in the same effective line of sight range (width 2 T. height E), the graphic geometric properties of the AC of the present invention have the following characteristics:

(1) When the equator is the main scale, the main scale is doubled;

In Figure 4A there is the formula = 2 ττ ¾

··· C _{1 in} 4Α ₌ C _{2 in} 4B ··· = 2 7 · ¾ = 2 7-1

... C ₂ = 2 ττ In Figure 4C there is a formula C ₃ = 2 ir r _s correction page (Article 91 of the detailed rules) '.' r ₃ = ir

.. C ₃ = 2 ΤΓ r ₃ = 2 TT * (IT) = 2 IT-ττ

Therefore, when C ₂ : C _s , there is 2ττ: 2ττ-ττ, which is 1: ττ.

(2), when compared to developable surface area, increased area ττ ^2/2 times;

In Figure 4A there is the formula S ₁ = 4 π _r ²

·. · 4A

= 4 π

.. S ₂ * s = π

There is a formula in Figure 4C

... S3 double! F2 · rr i

= 2 · Γ (ΤΓ) ² = 2 Γ ³

So when S ₂ ffi: S _{3 is} thin, there is 4ττ:

That is, 1: ττ ^2/2 ο

(3) A summary of the expandable maps of the projected maps of the maps of the southern and northern hemispheres. A globe with a radius equivalent to R ₄ of 2.22 times the R sphere in Figure 4A (Figure 4D).

There is a formula in Figure 4C

π r ₃ ²

Order: Sil. Ball Double Circle

··· In S ₃ round two irr ₃ ² , there is = ΤΓ

...

Gen

^{R * = V ττ 2/2} ^ 2.22

Therefore, under the same visual condition as Robinson projection, the map expressed by the present invention is summarized as a spherical radius of 2.22 times compared with the same period of last year. It can be seen that the level of detail in the map in Figure 4C is consistent with the level of detail in the globe in Figure 4D.

Fig. 5 shows the projection maps of the same point of view maps of the northern and southern hemispheres in the present invention. In the figure, 40 is the northern hemisphere map projection map, 30 is the southern hemisphere map projection map, 61 is the north pole, and is also the installation position of the left turntable, and 51 is the south pole. The point is also the installation position of the right turntable. 34 and 44 are the longitude and latitude lines of the positive-axis azimuth map projection map. In the map of the northern hemisphere, the dotted line 45 indicates that the elevation of the map symbol at its coordinate point is on the web correction page (Article 91 of the detailed rules) Above the grid surface elevation, a solid line 46 indicates that the elevation of the map symbol at its coordinate point is below or equal to the grid surface elevation. In the map of the southern hemisphere, the dotted line 35 indicates that the elevation of the map symbol on its coordinate point is below the grid surface, and the solid line 36 indicates that the elevation of the map symbol on its coordinate point is above the grid surface elevation or equal, ( It should be particularly noted that, since FIG. 5 is a small-scale map, the dotted line 35 in the map of the southern hemisphere indicates that it cannot be drawn, such as the latitude and longitude line covered by the basin symbol). In the figure, 37 and 47 are directional signs. The north-south direction line always coincides with the meridian of the coordinate point. In the map of the northern hemisphere, the center of the circle is the north pole and the direction of the south pole is the opposite direction. In the map of the southern hemisphere, the directions are opposite. 32, 42 are the Greenwich prime meridian, 31, 41 are the international date change line, and 38, 48 are the world time zone intervals of equal longitude.

FIG. 6 shows a turntable assembly and a base structure of a preferred embodiment of the present invention. The turntable of this example is a manual turntable. As shown in the figure, the turntable assembly 20 includes a left turntable 22, an active turntable 21, and a right turntable 23. Left, middle, and right are installed on the same plane parallel to the plane of the mounting base 10, and the edges of each turntable are provided with linkage disc teeth, which are respectively fitted on the bearing groove rings of the respective turntable bearings 221, 211, and 231, and each bearing is They are mounted on their central shafts 222, 212, and 232, respectively. Each central shaft is mounted on the base, and its two ends are fixed with nuts. A plurality of mounting holes 11 for suspension are provided at the four corners of the base 10.

FIG. 7 is a view of the view of the present invention. As shown, the northern and southern hemisphere map projection maps 30 and 40 are respectively set on the disk surfaces of the left turntable 22 and the right turntable 23 via the central axes 222 and 232, and are locked by nuts. stop. On the dial surface of the active turntable 21, there is a handwheel 213 with an indicator arrow and protruding outward. When using the handwheel, the upper hemisphere map can be easily transferred to the clear reading area below.

As shown in FIG. 7 again, since the rotation speed ratio of the master and slave (ie, the active turntable and the left and right turntables) is 2: 1, the indicator arrow 2131 on the handwheel 213 can serve as a clockwise hand, which can indicate the local time when the area is used. Or Greenwich Mean Time (corresponding to a clockwise turn of the sun and two circles) However, the installation requires the arrow pointing up vertically, and the center line of the corresponding regional time zone pointing down vertically. At the same time, the left and right diagrams are aligned with the meridian.

FIG. 8 is another turntable assembly and base structure of the present invention. The turntable of this example is an electric turntable, and its basic structure is basically the same as the manual structure of FIG. 6. The difference is that the active turntable 21 is not driven by a handwheel, but is provided. The motor component controlled by the clock 25 for stepwise rotation drives the electric turntable 24 to rotate, and the electric turntable drives the active turntable 21 to rotate on time. In this embodiment, the rotation speed ratio between the electric turntable 24, the drive turntable 21, and the driven turntables 22, 23 corresponds to 1: 1.

In FIG. 8, the clock 25 can be configured with a mechanical type or an electronic control type. When the rear mode is adopted, it can perform fast forward and reverse off-time control rotation and return to the original position. Correction (fine article 91) FIG. 9 is a perspective view of the embodiment of FIG. 8. Compared with FIG. 7, it can be seen that the hand wheel with the indicating arrow is cancelled, and the clock dial 251, the minute hand 252, the time hand 253, and the direction and angle of the hour hand 253 are set above the two map projection maps. Represents the corresponding local time in the same time zone on the left and right diagrams.

In FIG. 9, it should be particularly noted that the small time value on the clock dial 251 corresponds to a solar day rotating one circle and being equally divided, and the start time at 00:00 every day corresponds to the international date change on maps 30 and 40. Lines 31 and 41 are directed downward, and the minute hand 252 and the hour hand 253 follow the direction of the earth's rotation and run counterclockwise.

In Figs. 7 and 9, below the center-dawn lines 33 and 43 passing through the left and right hemisphere maps 30 and 40, that is, the base neutral positions 12, 13, 14 are provided with several supplementary drawings for complete representation of the cross The situation of the equatorial administrative area makes the map of the area easy to read.

10 is a map application obtained by projecting the same-view maps of the northern and southern hemispheres of the present invention using a geographic information system (GIS) process. Another implementation is expressed by using an electronic screen system or an optical projection system. In summary, the present invention can Rotating the same point of view maps of the northern and southern hemispheres are particularly suitable for use in visualized "± 理理信息系统" (GIS) applications. They are time-efficient, global, and take the level of origin as zero, negative to the earth's crust, positive to A map of the tangible and intangible elements of the space between the outer atmosphere, perpendicular to the coordinates of the 'origin of level'. The interdisciplinary research and development activities of interstellar development and space exploration provide an ideal and practical three-dimensional information map.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited in this way, that is, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the description of the present invention, All should fall within the scope of the invention patent.

Industrial applications

Correction page (Article 91)

Claims

Request for Rights

1. A rotatable map map of the northern and southern hemispheres with the same viewpoint, characterized in that: the map is provided with a base (10), which is equipped with a linkage turntable assembly (20), and the turntable assembly is provided with a map projection map of the northern and southern hemispheres (30), (40), the map projection map is obtained as follows: the spheres are divided along the equator plane into the northern and southern hemispheres (50), (60), and the southern and northern hemisphere networks (34), (44) The shape is the same as the positive azimuth projection. A planned viewpoint (53) is set on the axis ( ⁵² ) between the north and south poles (61) and the sky north pole, so that the map projection map (40) in the northern hemisphere is obtained through the projection plane, and the southern hemisphere The map projection map (30) is obtained from the projection plane reflection.

2. The rotatable north and south hemisphere co-viewpoint map projection map according to claim 1, characterized in that: said rotating component (20) comprises an active turntable ( ² 1) with disc teeth on its edges and is located on both sides thereof The left turntable (22) and right turntable (23), which are respectively engaged with them, are mounted on the base (10) through bearings.

3. The rotatable projection map of the same viewpoint map of the northern and southern hemispheres according to claim 2, characterized in that: the active turntable (21) can be rotated manually or electrically; wherein in the manual mode, the active turntable (21) can be passed The hand wheel (213) mounted on it can be rotated manually at will. The ratio of the speed of the linkage between the active turntable (21) and the left turntable (22 X right turntable (23) is 2: 1; in the electric mode, the active turntable It can be driven by the electric turntable (24), and can be used for fast forward and reverse off-time control rotation and return to the original position; the linkage speed ratio between the electric turntable, the active turntable and the driven turntable is 1: 1: 1.

4. The rotatable map map of the northern and southern hemispheres with the same viewpoint according to claim 3, characterized in that: said electric turntable (24) is driven by a motor assembly (25) controlled by a clock (25) for stepwise rotation, and The motor component is a timing device, and its start time at 0: 0 every day corresponds to the droop line of the international date change lines (31) and (41); the hour hand (253) on the clock dial and the map projection map (30), (40) run in the same direction and synchronously, and the minute hand (252) and the hour hand ( ²⁵³ ) rotate in the same direction.

5. The rotatable map projection map of the northern and southern hemispheres with the same viewpoint according to claim 1, characterized in that: the linkage timing of the southern and northern hemisphere map projection maps (30), (40) is the Greenwich prime meridian ( 32), (42) are in the middle of the sky at the top, and the international date change lines ( ³ 1), l) are in the bottom, and their 180 ° east and west longitude lines coincide with the vertical line. Correction page (Article 91) 6. The rotatable northern and southern hemisphere synoptic map projection map according to claim 1, characterized in that: the morning and dusk lines (33) at the center of the circle are projected through the southern and northern hemisphere map projection maps (30), (40),

(3) At the bottom of the base (12 (13 X (14)), there are several supplementary drawings for displaying the status of the area across the equatorial administrative area.

7. The rotatable northern and southern hemisphere synoptic map projection map according to claim 1, characterized in that: the southern and northern hemisphere map projection maps (30), (40), the longitude and latitude networks (34), (44) ) Is a three-dimensional spatial network. When an unnatural map is applied, the altitude between the grid surface and the horizontal origin can be set to zero by default. When applying a natural map, note the positive or negative relative to the horizontal origin in the legend or on the border of the drawing. Absolute value; its corresponding network of latitude and longitude lines can simultaneously represent the superposition of spatial elements at different elevations, and they can all be misplaced, misplaced, or encrypted.

8. The rotatable north and south hemisphere synopsis map projection map according to claim 1, characterized in that: the south and north hemisphere map projection maps (30), '(40) positive-direction azimuth projection network The developable surface can correspond to one of orthographic projection, epicenter projection, spherical projection, spherical center projection, equal product azimuth projection, isometric azimuth projection, isometric azimuth projection, or the same hemisphere map with different map contents applied Projection map.

9. The rotatable map map of the same point of view in the northern and southern hemispheres according to claim 1, characterized in that: a directional sign indicating the direction of the coordinate points is distributed in the low-latitude region near the equator of the hemisphere map

(37), (47), and the north-south direction line of the direction indicator coincides with the meridian of the coordinate point; the corresponding world time zone symbols (38), (48) are marked on the map frame with equal longitudes.

10. The rotatable map projection map of the northern and southern hemispheres according to claim 1, characterized in that: the maps (30) and (40) obtained by using the projection maps of the northern and southern hemisphere views can be used. " "Geographic Information System" (GIS) processing is expressed using electronic screen systems or optical projection systems.

Correction ^ (Rule 91)