JPH09147091A - Mesh population map production device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To know the mesh population in real time and with a reduced error and also to know the age-based population, the age class-based population by dividing a map into prescribed standard area meshes and displaying the population data included in each area mesh. SOLUTION: An area mesh dividing part 4 divides the map data turned into an electronic data at a map read input part 3 into prescribed standard area meshes and gives the mesh codes to these meshes to store them in a map data file 5. A data input part 6 inputs the personal data including the mesh codes. A population data production part 7 extracts the data on the population out of the personal data and produces the population data on the total population, the age-based population, the age class-based population, etc., included in the corresponding standard area mesh to store them in a population data file 8. A control part 2 reads the corresponding map data and the corresponding population data out of the files 5 and 8 respectively and displays the corresponding population data at a proper place in a compartment line of each standard area mesh.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides a map in which topography, villages, traffic, etc. are entered into predetermined standard area meshes, and applies the appropriate standard area meshes to appropriate places within the division lines of the respective divided standard area meshes. The present invention relates to a mesh population map creation device that creates a mesh population map that displays population data such as total population, population by age, population by age stage, etc.

[0002]

2. Description of the Related Art In the conventional calculation of mesh population, a census area that forms the basis of a census is set, and the census area is included in the census (one census area has approximately 50 households, and approximately 700,000 census areas nationwide). The population of is distributed to the mesh. This calculation method is called the survey area identification method.

However, the conventional survey area identification method for calculating the mesh population has the following problems. (1) Since the national census is conducted every five years, the mesh population map will be updated every five years. In addition, the mesh population announced by the government (Presidential Statistics Bureau) has taken about two years since the census was implemented, so there is already a time difference at the time of publication. (2) When the survey area spans multiple meshes, it becomes a problem which mesh is put in.However, in the survey area identification method, when the survey area spans multiple meshes, the area of the survey area is the largest. The calculation is done by putting the population of the survey area in the mesh. Therefore, an error occurs at the time of identification, and the actual error becomes larger together with the above-mentioned time error, and it cannot be said to be a numerical value that can be practically used. (3) In the survey area identification method, only the total number of mesh populations is known, and the population by age, age group, etc. are not known.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and has the following objects. (1) Make the mesh population known in real time. (2) Reduce the error. (3) Not only the total number of mesh population, but also the population by age, the population by age group, etc. (4) Providing effective population information in the event of a disaster such as an earthquake or typhoon.

[0005]

In order to solve the above-mentioned problems, the mesh population map creating apparatus of the present invention reads a map in which topography, villages, traffic, etc. are entered and converts it into map data. 1) 3) and the map data read by the map reading / input unit are divided into predetermined standard area meshes, and a regional mesh division unit (4 in FIG. 1) that assigns a mesh code to each of the divided standard area meshes.
And a map data file (5 in FIG. 1) for storing map data in which a mesh code is added to each standard area mesh, and a data input section (6 in FIG. 1) for inputting individual data including the mesh code And population data for creating population data such as total population, population by age, population by age stage, etc. included in the relevant standard area mesh based on the mesh code from the individual data input from the data input section A creation unit (7 in FIG. 1), a population data file (8 in FIG. 1) that stores the population data created by the population data creation unit for each mesh code, and a display unit that displays map data and population data ( 1) of FIG. 1 and the map data stored in the map data file are displayed on the display unit, and the population data stored in the population data file is displayed in the map data. Control unit for displaying in place within separation lines of the standard area meshes constructed comprises a (2 in Figure 1) and.

[0006]

In the present invention, the map reading / input unit 3 is used for the terrain, the village,
Read the map on which traffic, etc. is entered, select only the necessary data, and convert it to map data (electronic). The area mesh division unit 4 divides the map data digitized by the map reading / input unit 3 into a predetermined standard area mesh (for example, a square mesh with one side of 1 km) based on, for example, latitude and longitude. , Assign a predetermined mesh code to each standard area mesh. The control unit 2 stores the map data to which the mesh code is added by the regional mesh division unit 4 in the map data file 5 based on the mesh code. On the other hand, the data input unit 6 inputs individual data including a mesh code. The population data creation unit 7 extracts data on the population from the input individual data, and based on the mesh code, the total population, the age-based population, the age-based population, etc. included in the relevant standard area mesh. Create the data. The control unit 2 stores the population data created by the population data creation unit 7 in the population data file 8 for each mesh code. When displaying the mesh population map, the control unit 2 reads out the corresponding map data from the map data file 5 based on the mesh code of the area to be displayed by an instruction from an input operation means such as a keyboard (not shown), and displays this. The population data of each corresponding standard area mesh is read from the population data file 8 while being displayed on the display unit 10 such as a CRT display, and the total population included in the corresponding standard area mesh in the appropriate place within the division line of each standard area mesh. Display population data such as population by age, population by age stage, etc. As a result, a desired mesh population map is created.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to specific examples. FIG. 1 is a block diagram showing an example of the configuration of a mesh population map creating apparatus according to the present invention. This mesh population map creation device is provided with a control / calculation device 1, a map reading input unit 3, a data input unit 6, a map data file 5,
The population data file 8, the display unit 9, the printer 10, and the external storage device 11 are included. Control / arithmetic unit 1
Is at least a control unit 2, a regional mesh division unit 4, and a population data creation unit 7.

The control section 2 of the control / arithmetic apparatus 1 plays a role of controlling the operation of each section of the apparatus. The map read / input unit 3 reads a map in which topography, settlements, traffic, etc. are entered, selects only necessary data, and converts it into map data. Here, as the map to be read, for example, a topographic map of 1/25000 issued by the Geographical Survey Institute can be used.
The map can be read and converted into data by using a known character / graphics recognition device that optically reads the map and leaves only the necessary data such as the boundary data of the area and roads and main buildings. The area mesh division unit 4 divides the map data digitized by the map reading / input unit 3 into predetermined standard area meshes, and assigns a predetermined mesh code to each standard area mesh. The map data file 5 stores the map data in which the mesh code is added to each standard area mesh by the area mesh division unit 4 for each mesh code.

The data input unit 6 inputs individual data including a mesh code. The personalized data used here is preferably a personalized file based on the Basic Resident Registration Act with mesh code added. The population data creation unit 7 extracts data on the population (mesh code, gender, age, etc.) from the input individual data,
Based on the mesh code, create population data such as total population, population by gender, population by age, population by age stage, etc. included in the relevant standard area mesh. The population data file 8 stores the population data created by the population data creation unit 7 for each mesh code.

A CRT display, a liquid crystal display, a screen display, or the like can be used as the display unit 9, and the map data file 5 is instructed by an input operation means such as a keyboard and buttons (not shown).
The map data read from and the population data read from the population data file 8 are displayed together. The printer 10 prints out the created mesh population map on paper or the like. The external storage device 11 is composed of a hard disk drive, a floppy disk drive, a magneto-optical recording drive, etc., and stores the data of the created mesh population map.

An example of how to divide a mesh and how to add a mesh code will be described. Note that, here, an example is given in which a mesh map at the level of the local government (municipalities) is created. (1) Prepare a topographic map issued by the Geospatial Information Authority of Japan in a range of 1/25000 and read it with a character / graphic recognition device, and only the necessary data such as boundaries, settlements, roads, main buildings, etc. To create map data. (2) Map The data map is divided into meshes of 1 km on each side. Classification is based on latitude and longitude information. Here, if the map data is vectorized, it becomes possible to perform classification quickly. Assign a mesh code to each mesh. The mesh to be given here
A mesh number defined by the National Land Agency can be used as the code. The mesh defined here may be the standard area mesh, but a mesh further subdivided as follows may be used as the standard area mesh. (3) As shown in FIG. 2, a basic mesh with one side of 1 km is further divided into two parts. Each of the four created meshes has a side of 500 m. For each mesh, for example, A, B,
Number them like C and D. Next, a mesh whose one side is 500 m is further divided into two parts vertically and horizontally. Each of the four created meshes has a side of 250 m. For each mesh, for example,
Number them like 2, 3, and 4. The mesh code created in this way looks like this: (Kawagoe / 3
2 ・ A ・ 1) Kawagoe is 1 in 25,000 map name, 3
2 is a reference mesh number of which one side is 1 km, and A.1 is a divided mesh number.

(4) On the other hand, a mesh code item is newly added to the individual file based on the Basic Resident Registration Act. (5) Use the residential map to identify the place of residence of residents. When the place of residence of a resident is identified, a mesh code is numbered. In addition, in the case where the mesh code is added, in the case where the residence is located on the mesh line and it is difficult to determine which mesh code is to be added, the rules of the processing method are determined in advance.

Next, the operation will be described. First, the map reading / input unit 3 reads a map of the municipality concerned (1 1/25000 topographic map issued by the Geospatial Information Authority of Japan) for which a mesh population map is to be created, using a known character / graphic recognition device (step 101), a boundary, Villages, roads, rivers, railways, public facilities,
Only necessary data such as schools and main buildings are extracted and converted into map data to create an electronic map (step 102). The regional mesh division unit 4 creates a mesh on the created electronic map (step 103) and assigns a mesh code to each mesh (step 104). The electronic map data provided with the mesh code is stored in the map data file 5 based on the mesh code under the control of the control unit 2.

On the other hand, the data input unit 6 takes in the personal file data including the mesh code (step 10).
6), the population data creation unit 7 creates a mesh
Total population included in each regional mesh based on the code,
Population data such as population by gender, population by age, population by age stage, etc. is created (step 107). The created population data is stored in the population data file 8 based on the mesh code under the control of the control unit 2 (step 10).
8).

When a mesh population map is to be displayed, an area to be displayed is designated by an input operation device such as a keyboard or buttons not shown (step 1).
09). In this case, for example, the mesh code may be designated, or a specific area may be associated with one or more mesh codes and the associated mesh code may be designated by an area designation button or an area number input. You may do it. The control unit 2 receives the designation of the mesh code, reads out the map data of the corresponding mesh code (single designation or plural designation is possible) from the map data file 5, and displays it on the display unit 9 (step 1
Along with 01), the population data of the corresponding mesh code is read from the population data file 8 and the population data is displayed at a proper place within the mesh division line of the map data displayed on the display unit 9 (step 111). Thereby, the desired mesh population map is displayed (step 11).
2).

In the above, if individual data is input at the end of every month and the map population data file 8 is updated each time, real-time population data can be grasped. Further, the created mesh population map can be stored in the external storage device 11 or can be printed by the printer 10.

While the present invention has been described above with reference to an embodiment, the present invention also enables the following. (1) Create the map data file and population data file at each municipality level, create a database of these files, and update them at regular intervals. Then, in each prefecture, a mesh population map database at the prefecture level is created based on the database created at each municipality level. In addition, the country will create a national-level mesh population map database based on these. This allows immediate access to the mesh population map of the desired area. (2) By digitizing all file data for each individual at each municipality level, it is possible to create extremely rapid mesh population maps at the prefecture or country level by inputting data from the terminal device of each municipality. Become. (3) By adding contour line data to computerized map data, it can be useful for disaster countermeasures such as typhoons and tsunamis. (4) If the police, fire department, Self-Defense Forces, local governments, etc. operate in a unified manner, it is possible to very efficiently formulate disaster prevention plans and implement disaster countermeasures. (5) The mesh population map created by the present invention can be used for city planning, various local government plans, academic research, various regional surveys, market surveys, etc., in addition to disaster prevention.

[0018]

According to the present invention, since the above configuration is adopted, the mesh population can be known in real time. In addition, the obtained data has extremely reduced error. In addition, not only the total population in the mesh but also various population data such as population by age, population by age group, etc. will be known. Further, the mesh population map created by the device of the present invention is very effective for various plans, researches, surveys, etc. including disaster prevention.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a mesh population map creation device according to the present invention.

FIG. 2 is an explanatory diagram of how to divide a mesh and how to add a mesh code.

3 is an operation flowchart of the apparatus of FIG.

[Explanation of symbols]

 1 Control / arithmetic device 2 Control part 3 Map reading input part 4 Regional mesh division part 5 Map data file 6 Data input part 7 Population data creation part 8 Population data file 9 Display part 10 Printer 11 External storage device

Claims (1)

[Claims] 1. A map reading and inputting unit for reading a map on which topography, villages, traffic, etc. are entered, and dividing the map data read by the map reading and inputting unit into a predetermined standard area mesh, and A regional mesh division unit that assigns a mesh code to each of the divided standard regional meshes, a map data file that stores map data that has a mesh code assigned to each standard regional mesh, and individual data that includes the mesh code. Population data such as total population, population by age, population by age stage, etc. included in the relevant standard area mesh based on the mesh code based on the data input section to be entered and the individualized data entered from the data entry section The population data creation unit that creates the
A population data file stored for each code, a display unit for displaying map data and population data, and map data stored in the map data file are displayed on the display unit and stored in the population data file. A mesh population map creation apparatus, comprising: a control unit for displaying existing population data at appropriate places within division lines of each standard area mesh of the map data.