JP2000181345A - World mesh code generating method and world mesh code - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a world mesh code which permits speedy and accurate expression of positional information by displaying only in figures in a global scale or within a specific region, and has compatibility with existing coordinates, etc., being easy to understand for anybody, easy to computerize and digitize, and excellent in practical and general use. SOLUTION: The method of generating a world mesh code permits accurate, simple, and comprehensible expression of positional information by dividing the world into 18 pieces of blocks, dividing each block into 100 meshes each in the east/west and south/north directions, further finely dividing each mesh to be provided with coordinates or subdivide it into small meshes and thereby sequentially indicating the numbers given to each sub-mesh for the global scale, and indicating them by omitting the sub-mesh numbers or also the mesh numbers for a usual narrow region.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating a world mesh code capable of quickly and accurately recognizing, displaying and transmitting position information uniformly and unitarily on a global and global scale.
And the world mesh code. More specifically, the world is first divided into blocks, each block is meshed, and each mesh is subdivided to form a fine mesh or coordinate. The number information is displayed in order, and the number display is simplified on a daily basis so that the position information can be expressed accurately and easily.

[0002]

2. Description of the Related Art Conventionally, means for representing position information include:
It was generally based on the display of place names and addresses. Also, in the case of road signs and the like, the position information is mostly based on the display of place names and addresses. However, the display of place names and addresses is very local, and it is difficult for people in other regions to understand, and in many cases, it is difficult to understand how to read. The most troublesome thing when you go to a rural area by car is that you do not know where you are.

[0003] In particular, the country, local governments, fire departments,
As the importance of location information increases due to the need for disaster prevention, disaster recovery and other social demands by police and other administrative agencies, and the need for private-sector and individual-level activities, location information becomes more accurate, easier and faster. It is required to recognize, display, and communicate. However, the means for expressing position information by the above-mentioned place name / address display is lacking in practicality and versatility, and has already exceeded the limit.

[0004] On the other hand, as recently as location information becomes important internationally, and the Geographic Information System (GIS) including related information other than location starts to move, computerization and digitization of information will become increasingly difficult. It is essential. However, conventional computerization and digitization of location information based on place names and address displays, etc., is time-consuming and time-consuming when inputting / outputting data to / from a computer, and before and after a person intervenes. Was incorrect because the information was incorrect.

Therefore, by means other than the display of the place name and address,
Although it is necessary to express position information accurately and easily, there has conventionally been a method of expressing a specific position using coordinates or a mesh code. Specifying a position using the coordinates and the mesh code is a simple and accurate means that everyone in elementary school has recently learned, and everyone knows. For example, even a regional map that is often used on a daily basis is divided into vertical and horizontal lines to create sections (meshed).
Conventionally, a specific position is searched for using an index described separately from the reference numerals attached to the vertical and horizontal margins.

As means for expressing position information on a global / global scale, there are a coordinate system based on longitude and latitude, and a UTM coordinate system used internationally as approximate right-angle plane coordinates. Domestically, the 19 coordinate system based on the above UTM coordinates is used for public surveying and the like. Further, the Japan Digital Road Map Association has been using the "Ministry of Construction" for transportation systems such as car navigation systems. There is also a coordinate system created based on "Road-to-Vehicle Information System (RACS)".

[0007]

However, the conventional coordinate system and mesh code system described above have the following disadvantages and problems, so that they are not very practical and are not used in practice. is there. First, the map is divided by vertical and horizontal lines and each section can be displayed by a code or the like attached to the margin, so that the section and the code are different for each map, and thus lack versatility. In the coordinate system using longitude and latitude, the longitude and latitude are spherical coordinates in 60 decimal system, and are difficult to use for ordinary people who are accustomed to decimal system and are not practical.

In the UTM coordinate system, the earth's surface is defined by longitude 6
This is a coordinate system in which the bands are classified into 60 bands by degrees, and the intersection of the center meridian and the equator of each band is the origin. However, the disadvantage of this method is that Japan is divided into five zones from zone 51 to zone 55, and each zone has a different coordinate origin. For example, Tokyo and Osaka belong to different zones, and the correlation with different zones is different. The relationship is so complicated that it can only be used within the same band. In addition, the fact that each origin is on the equator and is far from Japan also contributes to the difficulty of using this method.

In the 19 coordinate system, the origin of the UTN coordinate system is moved so that a plurality of prefectures share one coordinate origin. However, as the name implies, there are 19 origins. Because it can be used only for more localized purposes and is still scattered nationwide,
It cannot be unified.

The coordinate system based on the "Road-to-Vehicle Information System (RACS)" for the above traffic system divides Japan into equal parts by a regional code mesh defined by JIS, and further subdivides the specific area by normalized coordinates. Is displayed. However, since the secondary mesh is created by dividing the primary mesh into eight, the mesh numbers are not consecutive between adjacent meshes. Furthermore, when the primary mesh was created, the east and west were uniformly divided at 1 degree longitude and the north and south at 40 minutes latitude, so the latitude became narrower as the latitude increased, the mesh shape was greatly different between Hokkaido and the Okinawa region, the Okinawa region etc. Will have an aspect ratio of about 1: 1.35,
It was difficult to calculate the distance and check the direction, and it was not practical.

Therefore, a new coordinate system / mesh code capable of accurately, easily and quickly expressing position information is required. There is a postal code system recently implemented by the Ministry of Posts and Telecommunications, which is not related to the coordinate system / mesh code but is related thereto. In this system, the entire area of Japan is finely divided, and a specific area can be displayed by arranging 7-digit numbers, and the area in charge of each post office is computerized and digitized.

However, this postal code system has a very low utility as a means of expressing position information. This is because the postal codes are different for each post office area and do not have a regular coordinate structure. That is, of the seven digits of the postal code, the first two digits are generally classified by prefecture. For example, 00 indicates a part of Hokkaido, 01 indicates Akita, 02 indicates Iwate, and 03 indicates Aomori. While 0
4 to 09 show other parts in Hokkaido, and 98 in Miyagi prefecture and 99 in Yamagata prefecture even in the same Tohoku region.
Indicated by Thus, the postal code cannot be said to have the necessary regularity as a means of indicating position information, and does not perform a coordinate function at all. It lacks.

[0013] The applicant has previously invented a "traffic system using a point number display method" (see Japanese Patent Application Laid-Open No. 63-197986). The gist is that "All over Japan, the map is divided into rectangular areas within 1000 so that there is no gap between them.
Assign a three-digit number between 000 and 999. Next, the vertical and horizontal sides of each of the divided areas are each divided into a grid of 100 or less, and a two-digit number between 00 and 99 is attached to the intersection or grid of the vertical and horizontal lines in a matrix relationship. A total of 7 digits, which can be obtained by combining a 3-digit number of the region to which it belongs and a 2-digit number of each row and column, are used as point numbers to represent points nationwide in a unified and unified manner. Point display method ".

However, the invention described in the above-mentioned publication does not mention a specific method of how to form a rectangular mesh and divide into grids. It has the same problems as the problems of the method / mesh code.

In view of the above, a practical coordinate system / mesh code required at present does not increase the speed of internal processing of a computer, but simply and quickly transmits position information between people, especially people.・ Can be performed accurately. The present invention has been created as a result of many years of research to solve the drawbacks and problems of the conventional coordinate system, mesh code system and the like.

That is, an object of the present invention is to provide a configuration that is easy to understand for ordinary people, including foreigners, and that location information is unified and unified on a global / global scale, and is usually used on a municipal basis. ,
It can be expressed quickly and accurately, as well as existing latitude and
It has consistency with coordinate system such as longitude and mesh code,
Another object of the present invention is to provide a method for creating a world mesh code which is easy to computerize and digitize the position information, and which is highly practical and developable, and to provide a world mesh code.

[0017]

According to the present invention, the earth's surface is first divided into 18 blocks, and each block is divided into east-west, north-south, and 100-mesh sections, respectively, into a total of 10,000 meshes. A regular mesh number is assigned to this, and the inside of each mesh is further subdivided to form a fine mesh or coordinate.
The information is displayed sequentially on a global and global scale, and the number is simply displayed on a daily basis so that positional information can be expressed. Specifically, the configuration is as follows.

A In the method of creating a world mesh code according to the present invention, first, the earth surface is divided by a line 1a along a meridian at every 60 degrees of longitude to form six zones 3. Line 1 along the meridian at every 36 minutes of longitude
The bands 4 are further divided into 100 equal parts to form bands 4, and each band 4 is assigned an east-west number from 00 to 99 from west to east. In the southern and northern hemispheres, a line 2 along 150 parallels is drawn sequentially starting from the equator 5, and the east-west width W at an arbitrary latitude of the above-mentioned zone 4 becomes the east-west width W1 at a longitude of 36 minutes on the equator. Based on the multiplication of the cosine value at the latitude, the interval between the lines 2a along the adjacent latitudes is set to be the same as the east-west width W of the band 4 of the part, and the line 2a along the adjacent latitudes is set.
Each of the grid-like meshes 6 formed by and the adjacent meridians 1b is drawn so as to always have a square shape. Of the lines 2 along the 150 parallels, each zone 3 is divided into three in the north-south direction, with the line 2b along the 50th latitude in the south and north with the equator 5 interposed therebetween as the boundary line. Block. A total of 18 each of the blocks 7 formed above
Is assigned a block number 8. The north-south numbers from 00 to 99 are assigned to the meshes 6 in the blocks 7 in order from the northern end in the north-south direction. The four-digit number in which the east-west number and the north-south number are arranged is referred to as a mesh number 9. The inside of each of the meshes 6 is further subdivided into a line 1c along a meridian for subdivision and a line 2d along a latitude line, and each of the fine meshes 10 has a fine mesh number 11 in the east-west and north-south directions or a coordinate number. Attached. The position information can be expressed by arranging the numbers in order.

B The world mesh code according to the present invention is:
Line 1a along the meridian at every 60 degrees of longitude on the earth's surface
Are divided into six zones 3. Each zone 3 is further divided into 100 equal parts by a line 1b along a meridian at every 36 minutes of longitude to form a band 4, and each zone 4 has 00 from west to east. From 9
9 are assigned to the east-west numbers up to 9, and 150 lines are sequentially drawn along the latitude line starting from the equator 5 in the southern and northern hemispheres. Based on the fact that the width W is obtained by multiplying the east-west width W1 of the longitude 36 minutes on the equator by the cosine value of the latitude, the interval between the lines 2a along the adjacent latitude line is the east-west width W of the band 4 of the corresponding portion. And each of the grid-like meshes 6 formed by the line 2a along the adjacent latitude and the line 1b along the adjacent meridian
Is always drawn in a square shape.
In the northern hemisphere, each zone 3 is divided into three blocks in the north-south direction with a line 2b along each 50th latitude line across the equator 5 as a boundary line, and a total of 18 blocks 7 formed as described above are formed. Is assigned a block number 8, and each of the above blocks 7
In each mesh 6 in the order from the northernmost in the north-south direction
A north-south number from 0 to 99 is assigned, the east-west number and the north-south number are arranged to form a mesh number 9, and the inside of each mesh 6 is further divided into a line 1c along a meridian for subdivision and a line 2d along a latitude line. Each of the fine meshes 10 is provided with a fine mesh number 11 or a coordinate number in the east-west and north-south directions, and position information can be expressed by arranging the numbers in order.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the method for creating a world mesh code and the world mesh code having the above-described configuration, the earth surface is first divided into six zones 3 by a line 1a along a meridian at every 60 degrees of longitude ( (See FIG. 1).

Here, the division into six is also possible by other division methods such as eight divisions and ten divisions, but is the result of examining each of them. That is, first, by setting the longitude to 60 degrees, each cultural sphere such as Europe, North America, and East Asia including Japan fits in one block 7 (see FIG. 5). Secondly, when forming the mesh 6 by dividing the band 4 into a square shape, if the mesh 6 is piled up 150 pieces starting from the equator, it can cover almost the vicinity of the southern and arctic circles (see FIG. 5 described above). Thirdly, the accuracy of the size of each mesh 6 formed from the width of the band 4 formed by dividing each zone 3 into 100 parts in the east-west direction is improved, but if the size is too small, the expression of the position information is too small. Because it is necessary to always display the mesh number on the
It has been concluded that six divisions is the optimal number of divisions.

The starting point for the above-mentioned division into six may be a position at a longitude of 0 or 180 degrees similarly to the conventional one (see FIG. 9), but it is shifted to the west by 10 degrees of longitude from those positions. It is desirable to divide the image into 10-degree west longitudes or 170-degree east longitudes, and to divide them at intervals of 60 degrees from that point (see FIG. 5).

This is related to the above-described formation of each zone 3 by six divisions every 60 degrees of longitude. However, unlike the case of starting from 0 degrees of longitude or 180 degrees of east longitude, Europe, North America, or Japan This is for the purpose of ensuring that each of the integrated cultural spheres such as East Asia is included in one block 7.

Each zone 3 is further divided into 100 equal parts by a line 1b along a meridian every 36 minutes of longitude to form 100 belts 4 (see FIG. 2), and 100 belts 4 in each zone 3 are formed. Each band 4 is assigned an east-west number from 00 to 99 in order from west to east.

Here, each zone 3 is set to 100 every 36 minutes of longitude.
The reason why the belt 4 was formed by dividing the earth equally was that, first, the above-mentioned UTM projection divides the earth into 6-degree longitudes. , Second
Meanwhile, the width (distance) of 36 minutes of longitude is, for example, in the vicinity of the middle latitudes to which Europe, North America, or East Asia including Japan belongs, and one mesh 6 is about 50 km square, and viewed from the user side. This is because it is not too large nor too small, and is considered appropriate.

Next, 150 lines each of 150 parallel lines are drawn sequentially from the equator 5 as described above in the southern and northern hemispheres (see FIG. 2). The individual meshes 6 are formed so as to be stacked.

At this time, the east-west width W at an arbitrary latitude of each of the bands 4 is obtained by multiplying the east-west width W1 of the longitude 36 minutes on the equator 5 by the cosine value of the latitude (see FIG. 3). The distance between the lines 2a along the adjacent latitudes is such that the grid-like meshes 6 formed by the lines 2a along the adjacent latitudes and 1b along the adjacent meridians are always square. I will pull. That is, each mesh 6 is always formed in a square shape by setting the interval between the lines 2a along the adjacent latitude lines, in other words, the north-south width H to the east-west width W of 36 minutes of longitude at the latitude. The meshes 6 are sequentially stacked starting from the equator 5 (see FIG. 2) (see FIG. 2).

More specifically, the interval between the lines 2a along the adjacent latitude lines is set to be the same as the east-west width W of the longitude of 36 degrees at the latitude because the east-west width W of each band 4 is the latitude. Taking into account that the higher the height becomes, the narrower it becomes.
That is, if the line 2 along the latitude line is drawn uniformly at intervals of 36 minutes of latitude, the interval is always constant, whereas the line along the adjacent meridian increases as the latitude increases. 1
The interval of b becomes narrow. In this case, the shape of the mesh 6 near the equator 5 becomes a square, but the shape of the mesh 6 becomes longer as the latitude increases, and the aspect ratio becomes 2.5 near the polar region.
This is because there is an inconvenience of becoming one-to-one, which is inappropriate as the shape of the mesh 6 of the mesh code in which position information is to be shown as accurately as possible.

Therefore, in the present invention, each mesh is formed by setting the interval between the lines 2 along 150 parallel lines drawn sequentially starting from the equator 5 to be equal to the east-west width W of the longitude of 36 minutes at the latitude. The vertical and horizontal lengths at 6 are almost the same. Here, the latitude at the south end position (south end latitude) of each mesh 6 may be used as the reference latitude when forming each mesh 6, and the east-west width W may be used as the north-south width H (see FIG. 4 described above). ).

However, strictly speaking, the shape of the mesh 6 is a trapezoid whose length in the east-west direction is slightly different at the south and north ends. Therefore, in order to make this as close to a square as possible, a latitude (central latitude) passing through the center point of each mesh 6 formed there is used as a reference latitude, and east-west of a line (central latitude) 2d along the latitude line is used. It is desirable to form each mesh 6 with the width W2 being the north-south width H. Thus, each mesh 6 is always formed in a more square shape (see FIG. 4).

In the above description, 150 lines 2 along the latitude line are sequentially drawn starting from the equator 5 in the southern and northern hemispheres. By sequentially stacking at the starting point, almost all regions of the world can be covered with this mesh code except for the polar regions as described above, and a total of 300 meshes 6 are formed in the southern and northern hemispheres. This is because if divided into three, each block 7 in which 100 meshes 6 are arranged in the north-south direction can be formed.

That is, line 2 along each of the 150 parallels
Of these, each zone 3 is divided into three blocks in the north-south direction with the line 2b along the 50th latitude line extending to the south and the north across the equator 5 as a boundary line (see FIG. 2). A block 7 in which 100 meshes 6 are arranged in the north-south direction is also formed.

As described above, six zones 3 are formed in the east-west direction, and each zone 3 is divided into three zones in the north-south direction. Thus, the earth surface is formed with 18 blocks 7 in total. Will be. A block number 8 is assigned to each of the blocks 7 (see the above 5 and FIG. 9).

Each of the 100 meshes 6 in the north-south direction in each block 7 has 00 in order from the north end.
The four-digit numbers in which the east-west number and the north-south number are arranged are set as a mesh number 9 (see FIG. 6). In this mesh number 9 composed of four digits, the upper two digits are an east-west number, and the lower two digits are a north-south number.

The inside of each of the meshes 6 further includes a line 1c along a meridian for subdivision and a line 2d along a latitude line.
Subdivide into east-west direction and north-south direction, and each fine mesh 1
For 0, a fine mesh number 11 from the east-west direction and the north-south direction is attached (see FIG. 7), or a coordinate number indicating the center position of the fine mesh 10 is given. Here, the fine mesh number 11 is a number indicating the specific fine mesh 10 having a certain area, and the coordinate number is a number indicating, for example, the center position of the fine mesh 10.

If the number of divisions at the time of subdivision is increased, the area of each fine mesh 10 is further reduced (see the fine mesh 10a in FIG. 7), and the representation of position information can be performed with higher accuracy. Conversely, if the number of divisions at the time of the subdivision is made smaller, the area of each fine mesh 10 becomes larger, which is convenient for showing a rough positional relationship.

When expressing the position information by arranging the above numbers in order, when expressing the information on a global / global scale, the numbers are arranged in order such as block number-mesh number-fine mesh number (or coordinate number). Just show it,
In this way, it is possible to express location information in a unified and unified manner on a global and global scale.

However, in practice, unless a very international positional relationship is required, the display of the block number 8 is omitted as in the case where the country code and area code of the telephone are usually unnecessary. I just need. For example, in Japan, in the case of an approach on a prefectural level basis, the mesh number 9 may be displayed first. If the target is an administrative area of a ward, municipal or municipal level, the mesh number is also omitted and the fine mesh number 1
It is sufficient to display only 1 (or the coordinate number). It is desirable that the display of the numbers is as simple as possible, and the rules of the display method may be determined in accordance with the display.

The above-mentioned block number 8 includes zone numbers (I, II, III, and
IV, V, VI) (see FIG. 1 above), and when each zone 3 is divided into three in the north-south direction, different numbers (A, B,
C) (see FIGS. 2 and 3 above), and it is desirable that the combination of these numbers be block number 8 (for example, see FIGS. 5 and 9), but this is not necessarily the case.

[0040]

1 to 12 relate to an embodiment of a method for creating a world mesh code and a world mesh code according to the present invention.

FIG. 1 shows a state in which the surface of the earth is divided by a line 1a along a meridian at every 60 degrees of longitude to form six zones 3. In this embodiment, as shown in FIG. The starting point is shifted to the west by 10 degrees from 180 degrees east longitude, and the starting point is 170 degrees east longitude. Each zone 3 has a zone number in the eastbound direction, here I, II,
The state where III, IV, V, and VI were attached is shown.

The reason why the starting point is set to 170 degrees in longitude is that this world mesh code is intended to be developed worldwide, and as described above, Europe, North America, and East Asia including Japan are united. This is to make each culture area practical in each of the one block 7.

That is, in the division method starting from 0 degrees or 180 degrees in the general method, the United Kingdom and Spain are divided in the European territory, and San Francisco and Los Angeles are separated in the North American territory. In the East Asian region to which China belongs, only a part of China fit in, and it was not a good division method. In this embodiment, the starting point at the longitude of 0 degrees or 180 degrees is shifted to the west by 10 degrees at a time to form a block. Thus, as shown in FIG. 5, the European region fits well in one block 7, the West Coast fits well in one block 7 in the North American region, and the interior of China falls within the VI-A block even in the East Asian region to which Japan belongs. As a result, the above problem caused by the general method can be skillfully improved (see FIG. 5).

FIG. 2 shows that the above one zone 3 is further divided into 100 equal parts by a line 1a along a meridian every 36 minutes of longitude, and 100 bands 4 each having an east-west width W of 36 minutes of longitude are obtained. Shows what was formed. There are 0 from west to east in each zone 4
Assign east-west numbers from 0 to 99.

Then, in the southern and northern hemispheres, 150 lines 2 each extending along the latitude line starting from the equator 5 are sequentially drawn.
In that case, the grid-like mesh 6 formed by the line 2a along the adjacent latitudinal line and the line 1b along the adjacent meridian on both sides of each band 4 is sequentially stacked by 150 pieces starting from the equator 5 as a starting point. (See FIG. 2 above).

As described above, 150 lines 2 along the latitude line are sequentially drawn starting from the equator 5, and the grid-like mesh 6 is drawn from the equator 5.
Are successively piled up, so that the latitude of the line 2b along the 150th latitude line in the southern and northern hemispheres becomes 66 degrees 30 minutes 20 seconds south latitude or north latitude (see FIG. 1 as a reference example.
0, see Table 1). Therefore, as shown in FIGS. 5 and 9, almost all regions of the world except for the polar regions are covered by this mesh code.

FIG. 3 shows an interval between arbitrary longitudes δ (here, 36 minutes) on an arbitrary latitude θ of each band 4 when forming each mesh 6, that is, both sides of each band 4. It describes the interval between the lines 1b along the adjacent meridians, in other words, the east-west width W of each mesh 6.

That is, the radius of the earth, that is, the distance from the earth axis on the equator 5 at latitude 0 degrees is R, and the arbitrary longitude δ on the equator 5
If the east-west width of (36 minutes in this case) is W1 and the distance from the earth axis at an arbitrary latitude θ is r, the same arbitrary longitude δ degrees at the arbitrary latitude θ (here, 36
Min), the east-west width W is W1: W = R: r, so that W = W1 x r / R, and r = Rcosθ,
W = W1 cos θ. That is, the east-west width W at an arbitrary latitude θ in each of the bands 4 is obtained by multiplying the east-west width W1 at a longitude of 36 minutes on the equator 5 by the cosine value at the latitude θ.

FIG. 4 is an enlarged view of the portion within the frame shown in FIG. As described above, the east-west width W at an arbitrary latitude θ of each zone 4 is the east-west width W1 of 36 minutes on the equator 5.
Is multiplied by the cosine value at that latitude, the interval between the lines 2a along the adjacent latitudes among the 150 parallels 2 drawn sequentially starting from the equator 5 is:
The interval is the same as the east-west width W of the line 2 along each latitude line at 36 degrees of longitude at the latitude θ, and this is the north-south width H of each mesh 6. Therefore, each mesh 6 thus formed is always square.

In the above description, the interval between the lines 2a along the adjacent latitudes is set to be the same as the east-west width W of the longitude of 36 minutes at the latitude, corresponding to the fact that the earth is spherical as described above. is there. As a result, the equator 5 starts at 150
When the line 2 along the parallels of the book is drawn, each of the 150 meshes 6 formed in each band 4 has a substantially square shape not only for the equator but also for the south and north poles. Since the meshes 6 can be formed, the unit lengths in the east, west, north and south of each mesh 6 become the same, and it becomes easy to calculate the distance and grasp the direction, thereby increasing the practicality.

As the reference latitude for forming each mesh 6, a latitude passing through the center point of each mesh 6 formed there, that is, the center latitude, is used as shown in FIG. Strictly speaking, the shape of each mesh 6 is a trapezoidal shape with different lengths in the east-west direction at the south and north ends, so that these are made as close as possible to a square. That is, the interval between the lines 2a along the adjacent latitude lines, in other words, the north-south width H of the mesh 6 is made equal to the east-west width W2 of the central latitude line 2d there, and each mesh 6 is formed by this. . Thus, each mesh 6 is more square than the east-west width of the line 2a along the latitude line at the southern latitude.

Of the lines 2 along each of the 150 latitude lines,
Line 2 along the 50th parallel to the north and south across the equator 5
Each zone 3 is divided into three blocks in the north-south direction using a as a boundary line to form blocks. Blocks 7 in each zone 3 are numbered in this order from the north, here A,
B and C are attached (see FIG. 2 above).

Since the earth surface is formed in a total of six zones 3 as described above, dividing each zone 3 into three parts allows the earth surface to be divided into a total of 18 blocks 7 in total. Become. Each block 7 is assigned a block number (I, I,
I, $ IV) and a number (A, B, C) obtained by dividing each zone 3 into three parts. That is, as shown in FIG. 5 and FIG.
IB, IC, II-A, II-B, II-C, II
Block numbers IA, III-B, and VI-C are assigned.

In each of the above-mentioned blocks 7, the
Each of the 00 meshes 6 is assigned a north-south number from 00 to 99 in order from the north end, and
A four-digit number in which the east-west number and the north-south number are arranged is set as a mesh number 9 (see FIG. 6).

Further, here, the inside of each mesh 6 formed as described above is subdivided by a line 1c along a meridian for 100 subdivisions and a line 2d along a latitude line as shown in FIG. 100 thin meshes 10 are formed in each of the east-west and north-south directions (for example, see a portion surrounded by a thick line in the figure), and each fine mesh 10 is directed from east to west and from north to south. Each of them has a fine mesh number 11 from 00 to 99.

In FIG. 7, the fine mesh 10 is further subdivided into a line 1d along a meridian for ten subdivisions and a line 2e along a latitude line, and the fine mesh 10a is divided into smaller meshes 10a. (For example, a hatched portion in the figure), and each of the subdivided fine meshes 10a also has a fine mesh number from 0 to 9 from east to west and from north to south. 11a is attached. This means that each mesh 6 is equally divided into east, west, north and south directions.

When expressing position information using this world mesh code, if unified and unified position information on a global / global scale is required, a block number −
The mesh number-the fine mesh number (or the coordinate number) may be displayed in order. However, as mentioned above, in practice,
It is sufficient to omit the block number 8 and display mesh numbers 9 and below unless an international positional relationship is necessary. For example, in the case of location information in a ward, municipal or other unit or in a narrow area smaller than that, it is sufficient to omit the mesh number 9 and display only the fine mesh number 11. In this regard, the display method is ruled in order to make the display as simple as possible (for example, see the description of traffic signs below).

Table 1 shown in FIG. 10, Table 2 shown in FIG. 11, and Table 3 shown in FIG.
When forming 150 meshes 6 in order from the position of the equator 5 in the north direction, the north-south number of each mesh 6, its southernmost latitude, center latitude, cosine value of the southernmost latitude, cosine value of the central latitude, and the like, It shows the vertical / horizontal error, the north-south end error, the mesh size, and the like at each latitude. Here, this embodiment relates to an embodiment in which the latitude is reduced every 10 seconds. Lines 2 (2a, 2b, 2c, 2d, 2e) along each latitude line in FIGS. 2 to 7 are drawn based on this table. Since these tables relate to the Northern Hemisphere, they are symmetric in the Southern Hemisphere.

As is clear from the above tables, for example, the mesh 6 formed with the east-west width W1 at the longitude of 36 degrees at 0 degree latitude on the equator as the base has a center latitude of 0 degrees 18 minutes. At 00 seconds, the cosine value is 0.9999, and the east-west width W2 at the longitude of 36 minutes is about 66.66 km. Since this is the north-south width H of the mesh 6 formed here, an almost square mesh 6 is formed, the vertical and horizontal error is -0.01%, and the north-south error is also 0.0.
Only about 1%.

Further, the mesh 6 formed with the east-west width W near the Tokyo at a latitude of 35 degrees 18:00 and a longitude of 36 minutes at a latitude of 35:18:00 has a center latitude of 35 degrees 32 minutes 40 minutes.
The second and the cosine value are 0.8137, and the east-west width W2 at the longitude of 36 minutes is about 54.24 km. Since this is defined as the north-south width H of the mesh 6 formed here, an almost square mesh 6 is also formed. The vertical and horizontal error is about -0.14%, and the north-south error is about 0.60%. Is small.

In the above, one side of each mesh 6 is about 50 km in the vicinity of Japan, which corresponds to the middle latitude. For example, as shown in FIG. Will be included. Further, when the mesh 6 is equally divided into east, west, north and south, as described above, the length of one side of each fine mesh 10 is about 500.
m, it is large enough to represent positional information in a specific area (see FIG. 7).

In expressing the position information, the block number does not need to be used in practice unless there is a need for such an international positional relationship as described above. For example, 3-chome Uchigasaki Seki, Chiyoda-ku, Tokyo Is located within the fine mesh 10 (portion surrounded by a thick line in FIG. 7) indicated by 4986-58-17 starting from the mesh number 9.

When subdividing each of the meshes 6 described above, in addition to dividing each of the meshes 6 into east, west, north and south, each of them is further divided into ten equal parts as described above so as to become 1000 equal parts. For example, since the inside of the small frame shown by the thin line in FIG. 7 becomes one fine mesh 10a, the length of one side is about 5
0m. For example, the same location of the Patent Office as above is 4
The patent office (the entrance) is located within the fine mesh 10a of 986-584-179.

Although not shown, each mesh 6
If each is divided equally into east, west, north and south at the time of subdivision, each side of each fine mesh 10 is 5 m, so that the position of the specific house can be indicated. In the above example, the front entrance of the JPO Even the position of can be accurately indicated. In such a case, the mesh number may be omitted, and only the fine mesh number may be displayed.

Next, FIG. 8 shows an example of a traffic sign using the world mesh code according to the present invention. In this case, as a sign at an intersection, the current position is shown in numerical order in order from the mesh number near the lower part thereof. The destination of each road is displayed in numerical order with the place name along with the mesh number.

That is, this relates to the intersection indicated by point P in the figure, and is installed near point Q in the figure. In the lower margin of this sign, the position of the intersection is 498
Since the number is indicated as 6-590-179, the current position can be immediately known by checking this number with a mesh code or a road map containing coordinates. Turning left at the intersection leads to Shibuya. Since Shibuya is within the same mesh 6 as above, the mesh number 4986 is omitted here, and it is indicated by the fine mesh number 49-22. At this time, the display with the mesh number omitted,
It can be seen that the distance is not long, and the direction and distance can be roughly grasped from the difference between the east-west and north-south numbers of the fine mesh number.

When the intersection is turned right, the vehicle heads for Chiba City. Since Chiba City belongs to another mesh, it starts with the display of the mesh number 5086. However, it is clear that Chiba City is located in the mesh next to the east. In addition, since the distance from the current position to Chiba City is far, the fine mesh number in such a case is not a fine mesh obtained by equally dividing each of the above meshes 6 into east, west, north and south, but here each mesh 6 is east and west.・ The numbers of the fine meshes of 5 km square divided into 10 equal parts from north to south are displayed.

In the traffic sign shown in FIG. 8, as in the case of the conventional traffic sign, a Roman character is also displayed, but it is questionable how useful this is for foreigners. Only by means of representation using numbers that are common throughout the world, it is possible to provide location information accurately and easily to ordinary people, including foreigners.
For this reason, the number of digits of the number is simplified to a minimum by various means as described above, but the number may be simplified by other means.

[0069]

The method for creating a world mesh code according to the present invention having the above-described configuration and the world mesh code have a simple expression and are easily understood by ordinary people. In addition to being able to express location information quickly and accurately in a unified and unified manner, and on a daily basis, for example, in units of municipalities, the consistency with existing coordinate systems such as latitude and longitude and mesh codes is also ensured. It is easy to use, and computerization and digitization of location information is easy, and it is rich in practicality and development.

That is, in the conventional coordinate system or mesh code system, it is difficult for ordinary people to use the hexadecimal system, or Japan is difficult to use because it is divided into five bands and the coordinate origin is different and located on the equator. In addition, there is a coordinate origin for each block, so that the whole of Japan cannot be uniformly represented, or because the subdivision of the mesh code is divided into eight, mesh numbers are not continuous between adjacent meshes, making it difficult to understand. Further, since the spherical earth is equally divided by vertical lines and horizontal lines and expressed in a plane, the interval (distance) between meridians per unit longitude (for example, 1 degree) is defined as low-latitude region and high-latitude region. There was a great difference between regions, and there were large differences in each section, mesh shape, aspect ratio, etc.

On the other hand, according to the method of creating a world mesh code of the present invention and the world mesh code, as described above, the east-west width between meridians at an arbitrary latitude is obtained by multiplying the width on the equator by the cosine value of the latitude. Considering that the mesh is always made, the mesh shape is always made to be square, and the world is divided into 18 large blocks, and 100 inside each block in north, south, east and west Is divided into meshes, and each mesh is further subdivided into fine meshes and coordinates, and the number given above is used only as necessary for the representation of position information as necessary. ,
The development and practicality are aimed at.

For this reason, firstly, position information can be represented only by numerals, which are common characters in the world, and, unlike conventional ones, the decimal system is used, and the numbers are well consecutive between adjacent blocks or meshes. Also, the position information can be simply represented by omitting the block number and the mesh number on a daily basis. This makes the mesh code very easy for ordinary people, including foreigners, to understand and use it, making it practical and easy to computerize and digitize, as well as giving versatility to location information. .

Second, according to the present invention, the earth surface is set at longitude 60.
Each degree is divided into six major zones by lines along the meridian, and each zone is subsequently divided into three parts north and south. Further, when dividing into six zones as described above, the starting point is, for example, 170 degrees longitude. Therefore, each cultural sphere such as Europe, North America, or East Asia including Japan is one each.
It fits nicely in one block, making this world mesh code useful for global deployment.

Third, the above zones are further divided into 100 equal parts by a line along the meridian to form a zone of every 36 minutes of longitude. Consistency with the UTM projection is ensured, and the size of one mesh is about 50 in the middle latitudes to which each cultural sphere such as Europe, North America, or East Asia including Japan belongs.
Since it is Km square, major cities such as Tokyo and Osaka in Japan will fit in one mesh,
In addition, in the administrative unit at the ward, municipal and municipal level, positional information can be expressed by a fine mesh number obtained by subdividing a mesh.

Fourthly, 150 lines are sequentially drawn along the latitude line starting from the equator in the southern and northern hemispheres, and each grid of 150 meshes formed in the southern and northern hemispheres of each band is always square. The interval between the lines along the latitude line is the same as the east-west width of the longitude of 36 minutes at the latitude. Therefore, the distance (distance) between the lines along the meridian drawn on the spherical surface of the earth can be made smaller at the extreme poles than at the equator, and the aspect ratio of each mesh is almost the same at any latitude. Thus, each mesh is always formed into a shape close to a square. Thereby, since the unit lengths of the east, west, and north and south of each mesh are the same, distance calculation and comprehension of the direction can be easily performed, and the mesh can be made highly practical.

Fifthly, starting from the equator, 150 lines are drawn along the latitude line in the southern and northern hemispheres, and a square mesh having one side having a length corresponding to 36 minutes of longitude is drawn from above the equator. The whole is formed by stacking 150 pieces each in the south and north directions. The world mesh code can now cover most of the entire world except for the polar regions.

Sixth, by sequentially arranging the block number-mesh number-fine mesh number (or coordinate number), the position information can be expressed in a unified and unified manner on a global and global scale. However, on a daily and practical basis, the block number of the above numbers and sometimes the mesh number may be omitted and simply displayed, so that the position information can be accurately and easily understood, and the distance and the distance can be expressed. It is easy to grasp the direction and the practicality is improved.

Seventhly, by changing the size and the number of coordinates of the fine mesh depending on the size of the number of divisions at the time of subdivision, the position information can be roughly grasped. It is possible to express practical position information according to the purpose. In addition, in the case of a traffic sign or the like, simply displaying only numbers can provide accurate information to ordinary people including foreigners, not only the current position but also the distance and direction, etc.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a state in which the entire surface of the earth is divided into six zones by a line along a meridian at every 60 degrees of longitude in an implementation process of a method for creating a world mesh code according to the present invention.

FIG. 2 is a conceptual diagram showing a state where one zone shown in FIG. 1 is divided into 100 bands by lines along meridians every 36 minutes of longitude.

FIG. 3 is a conceptual diagram showing an east-west width formed by a longitude δ on a line along a parallel at a position of latitude θ in the process of implementing the method of creating a world mesh code according to the present invention.

FIG. 4 is an enlarged view of a portion surrounded by a circle shown in FIG. 2, and is a conceptual diagram showing a mesh.

FIG. 5 is a conceptual diagram showing a state in which the entire surface of the earth is divided into 18 blocks in the process of executing the method for creating a world mesh code according to the present invention.

FIG. 6 is a conceptual diagram showing a mesh in the Kanto region when a block including Japan in the blocks shown in FIG. 5 is further divided equally into east, west, north and south by 100.

FIG. 7 is a conceptual diagram showing a state in which a mesh including Chiyoda-ku among the meshes shown in FIG. 6 is further equally divided into east, west, north and south by 1000 to form a fine mesh.

FIG. 8 is a front view showing an example of a traffic sign expressed using the world mesh code according to the present invention.

FIG. 9 is a conceptual diagram showing blocks when the entire surface of the earth is divided into east and west starting from longitude 0 degrees or 180 degrees.

FIG. 10 shows the creation of a world mesh code according to the present invention. The north-south number, the southernmost latitude, the central latitude, the cosine value of the southernmost latitude, and the central latitude of each mesh when the latitude is reduced every 10 seconds in the northern hemisphere. 6 is a table showing cosine values, vertical and horizontal errors, north-south end errors, and mesh sizes.

FIG. 11 is a continuation of the table shown in FIG. 10 in the direction of smaller latitude.

FIG. 12 is a continuation of the one shown in FIG. 11, in a direction in which the latitude is smaller.

[Explanation of symbols]

 1-Line along the meridian 1a-Line along the meridian 1b-Line along the meridian 1c-Line along the meridian 1d-Line along the meridian 2-Line along the parallel 2a-Line along the parallel 2b -Lines along the latitude line 2c-Lines along the latitude line 2d-Lines along the latitude line 2e-Lines along the latitude line 3-Zone 4-Zone 5-Equator 6-Mesh 7-Block 8-Block number 9-Mesh number 10-Fine mesh 10a-Fine mesh 11-Fine mesh number 11a-Fine mesh number W-East-west width W1-East-west width W2-East-west width H-North-South width

Claims (4)

[Claims] First, six zones 3 are formed by dividing the earth's surface by a line 1a along a meridian at every 60 degrees of longitude. Line 1 along the meridian at every 36 minutes of longitude
The bands 4 are further divided into 100 equal parts to form bands 4, and each band 4 is assigned an east-west number from 00 to 99 from west to east. In the southern and northern hemispheres, a line 2 along 150 parallels is drawn sequentially starting from the equator 5, and the east-west width W at an arbitrary latitude of the above-mentioned zone 4 becomes the east-west width W1 at a longitude of 36 minutes on the equator. Based on the multiplication of the cosine value at the latitude, the interval between the lines 2a along the adjacent latitude is set to be the same as the east-west width W of the band 4 of the part, and the line 2a along the adjacent latitude is set.
Each of the grid-like meshes 6 formed by and the adjacent meridians 1b is drawn so as to always have a square shape. Of the two lines 150 along each of the 150 parallels, each zone 3 is divided into three in the north-south direction, with the line 2b along each 50th latitude in the north and south across the equator 5 as a boundary line. Block. A total of 18 each of the blocks 7 formed above
Is assigned a block number 8. The north-south numbers from 00 to 99 are assigned to the respective meshes 6 in the respective blocks 7 in order from the northern end in the north-south direction. The four-digit number in which the east-west number and the north-south number are arranged is referred to as a mesh number 9. The inside of each of the meshes 6 is further subdivided into a line 1c along a meridian for subdivision and a line 2d along a latitude line, and each of the fine meshes 10 has a fine mesh number 11 or a coordinate number in the east-west and north-south directions. Attached. A method for creating a world mesh code that enables position information to be expressed by arranging the numbers in order. 2. A longitude 1 along a meridian line 1a along the earth's surface.
The method for creating a world mesh code according to claim 1, wherein, when dividing into six zones 3 at every 0 degree, the starting point is 10 degrees west longitude or 170 degrees east longitude. 3. The earth surface is divided into six zones 3 by a line 1a along a meridian every 60 degrees of longitude, and each zone 3 is a line 1b along a meridian every 36 minutes of longitude.
The belt 4 is further divided into 100 equal parts, and each belt 4 is numbered from west to east from east to west from 00 to 99. In the southern and northern hemispheres, 150 belts are sequentially formed starting from the equator 5. The east-west width W at an arbitrary latitude of the above-mentioned belt 4 is obtained by multiplying the east-west width W1 at a longitude of 36 minutes on the equator by the cosine value at the latitude. Based on the above, the interval between the lines 2a along the adjacent latitudes is made equal to the east-west width W of the band 4 of the part, and the line 2a along the adjacent latitudes and 1b along the adjacent meridian are Each of the grid-like meshes 6 formed by is drawn so as to always have a square shape. In the above-mentioned southern and northern hemispheres, a line 2b along each 50th latitude line across the equator 5 is used as a boundary line. Each zone 3 is divided into three blocks in the north-south direction and is divided into blocks. A block number 8 is assigned to each block 7 of the above, and a north-south number from 00 to 99 is assigned to each mesh 6 in each block 7 in the north-south direction in the north-south direction, and the east-west number and the north-south number are arranged. The mesh number 9 is set, and the inside of each of the meshes 6 is further subdivided into a line 1c along a meridian for subdivision and a line 2d along a latitude line, and each of the fine meshes 10 is divided into east-west and north-south fine meshes. A world mesh code to which a number 11 or a coordinate number is attached and position information can be expressed by arranging the numbers in order. 4. A line 1a along the meridian at every 60 degrees of longitude with the starting point being 10 degrees west longitude or 170 degrees east longitude on the earth's surface.
4. The world mesh code according to claim 3, wherein the world mesh code is divided into six zones.