JP7447575B2 - Local information distribution device, local information distribution system, and local information distribution method - Google Patents

Description

The present invention relates to a device and the like that distributes regional information according to the area where a user is located.

With the spread of mobile terminals such as smartphones equipped with location measurement functions, various location information services have been proposed that provide information based on the user's current location that can be obtained from the mobile terminal.

POI information is generally used as information provided by location information services. POI is an abbreviation for ``Point of Interest,'' meaning a place that someone finds interesting. Moreover, POI information means information related to POI.

POIs related to location information services are generally facilities. For example, POIs related to location-based services include entertainment-related facilities such as leisure facilities and sports facilities, shopping-related facilities such as retail stores and shopping streets, dining-related facilities such as restaurants, living-related facilities such as banks and hospitals, and hotels. This includes accommodation-related facilities such as hotels and hot spring inns, tourism-related facilities such as historical sites and tourist attractions, and transportation-related facilities such as stations and airports.

A location information service that provides POI information searches for POIs within an area based on the user's current location information that can be obtained from a mobile terminal. As described in paragraph 0019 of Patent Document 1, the distance between the user and the POI is calculated from the latitude and longitude obtained from the mobile terminal and the latitude and longitude of the POI, and the distance between the user and the POI is determined based on the user's current location information (for example, It is common to search for POIs located within a radius of 500 m based on the user's current location information, but in Patent Document 2, areas are determined so that the number of POIs is a predetermined number or more.

Japanese Patent Application Publication No. 2003-141406 JP2019-160320A

In this way, the area used in conventional location information services is the range based on the user's current location information, and the range of this area changes depending on the user's current location. On the other hand, the areas used for regional introductions such as prefectures, municipalities, and towns, which should be linked to the information to be disseminated, are divided according to tourist spots, regional characteristics, historical background, direction, etc. The range of this area does not change depending on the user's current location.

If we can provide users with information related to areas that are categorized in various ways, such as tourist spots, regional characteristics, historical background, or direction, it is thought that this will create an opportunity for users to take action in the areas they have visited. For example, by providing the user with various information regarding the area that the user is visiting on a trip and areas nearby, it is possible to give the user an opportunity to take action in the area that the user is visiting on a trip.

Therefore, the present invention provides a device, etc. that delivers information related to areas divided by various methods such as tourist spots, regional characteristics, historical backgrounds, or directions to users according to the area in which the users are located. With the goal.

A first invention related to a device for solving the above-mentioned problem is that each area defined by the center coordinates of at least one mesh is associated with an area name used for identifying the area, and is used to define the area. For each area DB in which the center coordinates of the mesh are registered and the area name registered in the area DB, register regional information to be distributed to users in the area identified by the area name in association with the area name. Find the center coordinates of the mesh containing the current location information obtained from the local information DB and the mobile terminal owned by the user, and search the area DB for the area name to which the center coordinates of the mesh containing the current location information are associated. The area information distribution means executes a process to search the area information corresponding to the area name from the area information DB and distributes it to the mobile terminal , and the mesh defining the area is a mesh with the same coordinate origin Multiple types of meshes are used in which distances are varied according to powers of 2, and the regional information distribution means determines the center coordinates of the mesh that includes current location information for each of the multiple types of meshes, and determines the center coordinates of the mesh that includes current location information. The regional information distribution device is characterized in that a process of searching the area DB for the area name associated with the center coordinates of the meshes to be distributed is executed in order from the meshes having the smallest mesh distance .
The local information distribution device according to the first invention is configured to identify the area where the user is located using a mesh, and to distribute local information related to the area where the user is located to a mobile terminal owned by the user. has been done. Further, the regional information distribution device described in the first invention can define the area with a complex shape by using a mesh with a small mesh distance, and furthermore, by using a mesh with a large mesh distance, the area with a large size can be defined. It is configured so that an area can be defined with one mesh.

A second invention related to a system for solving the above-mentioned problems is a regional information distribution system comprising at least a mobile terminal owned by a user and a regional information distribution device that distributes regional information to the user. The distribution device stores an area DB in which, for each area defined by the center coordinates of at least one mesh, the center coordinates of the mesh used to define the area are registered in association with the area name used to identify the area. , a regional information DB in which regional information is registered for each of the area names registered in the area DB, to be distributed to users in the area identified by the area name in association with the area name, and a regional information DB owned by the user. Find the center coordinates of the mesh that includes the current location information obtained from the mobile terminal, perform a process to search the area DB for the area name to which the center coordinates of the mesh that includes the current location information are associated, and retrieve the area name. regional information distribution means for retrieving regional information corresponding to the regional information DB from the regional information DB and distributing it to the mobile terminal, the mobile terminal transmits the current location information acquired from the position measurement module to the regional information distributing device; A location information service means is provided for displaying regional information obtained from a regional information distribution device, and a plurality of types of meshes having the same coordinate origin and varying mesh distances according to powers of two are used as meshes to define the area. The regional information distribution means calculates the center coordinates of the mesh containing the current location information for each of the plurality of types of meshes, and retrieves the area name associated with the center coordinates of the mesh containing the current location information from the area DB. This is a regional information distribution system characterized by performing search processing in order of mesh distance .
The regional information distribution system described in the second invention is configured to identify the area where the user is located using a mesh, and to distribute regional information related to the area where the user is located to a mobile terminal owned by the user. has been done. Further, the regional information distribution system described in the second invention can define the area with a complex shape by using a mesh with a small mesh distance, and furthermore, by using a mesh with a large mesh distance, the area with a large size can be defined. It is configured so that an area can be defined with one mesh.

A third invention related to a method for solving the above-mentioned problems is such that, for each area defined by a mobile terminal owned by a user and the center coordinates of at least one mesh, the For each area name registered in the area DB and the area name registered in the area DB, and the center coordinates of the mesh used to define the area, the user in the area identified by the area name is A local information distribution method comprising: a local information distribution device equipped with a local information DB in which local information to be distributed is registered; the mobile terminal transmits current location information acquired from a position measurement module to the local information distribution device; step a, the regional information distribution device determines the center coordinates of the mesh that includes the current location information acquired from the mobile terminal; step b, the regional information distribution device determines the center coordinates of the mesh that includes the current location information, Step c of searching the area DB for the area name searched in step c, the regional information distribution device searching the regional information DB for regional information associated with the area name searched in step c, and transmitting the area name to the mobile terminal. a step d in which the mobile terminal displays the local information distributed from the local information distribution device; and a step e in which the mobile terminal displays the local information distributed from the local information distribution device, and the mesh defining the area is a mesh where a multiple of the mesh distance is a power of 2 and coordinates are selected. A plurality of types of meshes having the same origin are used, and in step b, the regional information distribution device calculates the center coordinates of the mesh containing current location information for each of the plurality of mesh types, and in step c, The regional information distribution device is characterized in that the regional information distribution device executes a process of searching the area DB for the area name to which the center coordinates of the mesh containing the current location information are associated, starting from the mesh with the smallest mesh distance. It's a method.
According to the regional information distribution method described in the third invention, the area where the user is located can be specified using a mesh, and the regional information related to the area where the user is located can be distributed to the mobile terminal owned by the user. Further, according to the regional information distribution method described in the third invention, by using a mesh with a small mesh distance, the area with a complex shape can be defined, and furthermore, by using a mesh with a large mesh distance, the area can be defined in size. The large area can be defined by one mesh.

As described above, according to the present invention, there is provided a device, etc. that delivers information related to areas divided by various methods such as tourist spots, regional characteristics, historical backgrounds, or directions to users according to the area where the users are located. can be provided.

FIG. 1 is a diagram illustrating the configuration of a regional information distribution service system. A block diagram of a regional information distribution device. FIG. 3 is a diagram illustrating a mesh used to define an area. FIG. 1 is a diagram illustrating an example of an area set on a map. FIG. 2 illustrates an example of areas set on a map. Block diagram of a mobile terminal. A diagram explaining the operation of the regional information distribution system.

From here, embodiments according to the present invention will be described. This embodiment is provided to facilitate understanding of the present invention, and the present invention is not limited to this embodiment. Further, unless otherwise specified, the drawings are schematic diagrams drawn to facilitate understanding of the present invention.

FIG. 1 is a diagram illustrating the configuration of a regional information distribution system 1 according to this embodiment. The local information distribution system 1 according to the present embodiment is configured to identify the area 21 where the user 5 is located using the mesh 22 and to distribute local information related to the area 21 where the user 5 is located to the user 5. It is a system that

In this embodiment, the area 21 means a range divided into countries, prefectures, cities, towns, villages, towns, etc. based on tourist spots, regional characteristics, historical background, direction, etc. In this embodiment, latitude and longitude are used. The area 21 is defined by the center coordinates 22a of the mesh 22.

The regional information distributed to the user 5 can include various information depending on the area 21 where the user 5 is located. For example, article information describing the characteristics of area 21 or its vicinity, information on POIs (e.g. tourist spots) existing in area 21 or this vicinity, information on transportation facilities existing in area 21 or this vicinity, area 21 Alternatively, information regarding souvenirs sold in this vicinity, quizzes regarding area 21 or this vicinity, etc. can be included in the local information.

As illustrated in FIG. 1, the local information distribution system 1 according to the present embodiment identifies the mobile terminal 3 owned by the user 5 who receives distribution of local information and the area 21 where the user 5 is located. The mobile terminal 3 is connected to the local information distribution device 2 via a network 4.

FIG. 2 is a block diagram of the regional information distribution device 2. The regional information distribution device 2 can be configured with one or more servers. One server that constitutes the regional information distribution device 2 includes one or more processors 200 and various components connected to the processors 200. Although FIG. 2 shows the storage system 201 and network communication circuit 205 as components connected to the processor 200, the components connected to the processor 200 are not limited to these.

In the storage system 201 of the regional information distribution device 2, as a DB (DataBase), each area 21 defined by the center coordinates 22a of at least one mesh 22 is associated with an area name used to identify the area 21. The area DB 203 in which the center coordinates 22a of the mesh 22 used to define the area 21 are registered and the area name registered in the area DB 203 are associated with the area name, and users in the area 21 identified by the area name A regional information DB 204 is stored in which regional information to be distributed to 5 is registered.

In addition, the storage system 201 of the local information distribution device 2 has a computer program that calculates the center coordinates 22a of the mesh 22 that includes the current location information acquired from the mobile terminal 3 owned by the user 5, and includes the current location information. After searching the area DB 203 for the area name associated with the center coordinates 22a of the mesh 22, the area information distribution program 202 searches the area information DB 204 for area information associated with this area name and distributes it to the mobile terminal 3. remembered. When this local information distribution program 202 is executed, the processor 200 functions as the local information distribution means 20 according to the present invention. The operation of the local information distribution means 20 included in the local information distribution device 2 will be described later.

From here, the mesh 22 used to define the area 21 and the area 21 defined using the center coordinates 22a of the mesh 22 will be explained.

FIG. 3 is a diagram illustrating the mesh 22 used to define the area 21. The mesh 22 is a word that means "mesh" in English, and latitude and longitude are used to set the mesh 22. Although one type of mesh 22 may be used to define the area 21, in this embodiment, multiple types of mesh 22 are used, in which the coordinate origin is the same and the mesh distance (the length of one side of the mesh 22) is changed according to a power of two. is used.

The reason why multiple types of meshes 22 with different mesh distances are used is because the size and shape of each area 21 is different. For example, if a mesh 22 with a small mesh distance is used, a complex-shaped area 21 can be defined by combining a plurality of meshes 22. Further, by using a mesh 22 with a large mesh distance, a large area 21 can be defined with one mesh 22, and the number of meshes 22 used to define the area 21 can be reduced. The reason why the coordinate origin is the same for multiple types of meshes 22 is that, as can be seen from FIG. 3, by changing the mesh distance according to a power of 2, even if meshes 22 of various sizes are used, This is because the center coordinates 22a of the respective meshes 22 do not overlap.

In this embodiment, mesh distances are written before each mesh 22 to distinguish each mesh 22. In FIG. 3, the mesh 22 with the minimum mesh distance, that is, the mesh 22 that is 2 to the 0th power, is the 50 m mesh 220, and the mesh distance in the 50 m mesh 220 is approximately 50 m. The mesh distance is an approximate length because the latitude and longitude are used to divide the mesh 22. For example, a 50m mesh 220 is divided by latitude lines at 1.5 second intervals and longitude lines at 2.25 second intervals. It becomes a rectangular area obtained by

In addition, the 100m mesh 221 is a mesh 22 with a mesh distance approximately twice that of the 50m mesh 220 (2 to the 1st power), and the 200m mesh 222 has a mesh distance 4 times that of the 50m mesh 220 (2 to the 2nd power). This is the mesh 22. Furthermore, the 400m mesh 223 is a mesh 22 whose mesh distance is approximately 8 times (2 to the 3rd power) that of the 50m mesh 220, and the 800m mesh 224 is a mesh 22 whose mesh distance is approximately 16 times (2 to the 4th power) that of the 50m mesh 220. The 1600 m mesh 225 is a mesh 22 in which the mesh distance is approximately 32 times (2 to the 5th power) that of the 50 m mesh 220.

The area 21 defined using the mesh 22 described above will be explained. As mentioned above, area 21 refers to a range in which a predetermined area such as a country, prefecture, city, town, village, town, etc. is divided according to tourist spots, regional characteristics, historical background, direction, etc. is given an area name that serves as information for identifying the area 21.

FIG. 4 is a first diagram illustrating an example of the area 21 set on the map. FIG. 4 illustrates the 400 m mesh 223 and the 1600 m mesh 225 described using FIG. 3. In FIG. 4, the number of 1600m meshes 225 is one. Using the 1600m mesh 225, an area 210 is defined with "Bay Area" given as the area name.

Within the area 21, an area 21 smaller than this area 21 can be set. In FIG. 4, an area 211 with an area name of "Central Island Area" is defined using one 400m mesh 223 within an area 210 with an area name of "Bay Area".

FIG. 5 is a second diagram illustrating an example of the area 21 set on the map, and is a diagram illustrating details of the area 21 to which "Central Island Area" is given as the area name. FIG. 5 illustrates the 50 m mesh 220 and the 100 m mesh 221 described using FIG. 3. Area 211, which has the area name "Central Island Area," includes area 212, which has the area name "Station Area Area," and area 213, which has the area name "View Tower Area." It is set. The area 212 to which "station area area" is given as the area name is an area 21 composed of one 100 m mesh 221. Furthermore, the area 213 to which "View Tower Area" is given as the area name is the area 21 made up of five 50 m meshes 220.

The area DB 203 provided in the regional information distribution device 2 stores, for each area 21 defined by the center coordinates 22a of the mesh 22, the center coordinates 22a of the mesh 22 that defines the area 21 in association with the area name used to identify the area 21. is registered. By storing the center coordinates 22a of the mesh 22 in the area DB 203, the amount of information related to the definition of the area 21 can be reduced.

According to FIG. 4, in the area DB 203, the area name "Bay Area" is associated with the center coordinates 225a of the 1600 m mesh 225 that constitutes the area 210 given "Bay Area" as the area name, and furthermore, " The area name "Central Island Area" is associated with the center coordinates 223a of the 400m mesh 223 that constitutes the area 211 to which "Central Island Area" is given as the area name. Further, according to FIG. 5, in the area DB 203, the area name "station area area" is associated with the center coordinates 221a of the 100m mesh 221 that constitutes the area 212 to which "station area area" is given as the area name. . Furthermore, the area name "View Tower Area" is associated with the center coordinates 220a of the 50 m mesh 220 that constitutes the area 213 given "View Tower Area" as the area name, and the 50 m mesh 220 associated with this area name is There are a total of five center coordinates 220a.

In the regional information DB 204 provided in the regional information distribution device 2, for each area name registered in the area DB 203, regional information to be distributed to the users 5 in the area 21 identified by the area name is registered in association with the area name. Ru. Although the structure of the local information DB 204 included in the local information distribution device 2 is arbitrary, in this embodiment, the local information DB 204 includes a distribution management table 2040 and a local information table 2041.

The distribution management table 2040 is a data table in which, for each area name stored in the area DB 203, the local information ID of the local information to be distributed to the users 5 in the area 21 corresponding to the area name is written in association with the area name. be. Note that the regional information ID is information that identifies regional information, and one area name can be associated with a plurality of regional information IDs.

The regional information distributed to the user 5 includes not only information related to the area 21 where the user 5 is located, but also information related to other areas 21 in the vicinity of this area 21 and other areas in a wider area including this area 21. Information related to area 21 can be used. For example, the regional information distributed to the user 5 who is in the area 212 that has been given the area name "Area around the station" includes, in addition to the information regarding the area 212 that has been given the "Area around the station" as the area name. It is preferable to include information regarding the area 210 to which "Bay Area" is given as the area name. Furthermore, if this area information includes information regarding area 213, which is located in the vicinity of area 212 which has the area name "Station Area Area", and which has the area name "View Tower Area", good.

The regional information table 2041 stores regional information identified by the regional information ID in association with the regional information ID. Note that the regional information stored in the regional information table 2041 may be the regional information itself (for example, a video file displaying the regional information), but when the mobile terminal 3 displays the regional information using a browser, the regional information may be made public. It can be made into a URL.

From here, the mobile terminal 3 that constitutes the local information distribution system 1 will be explained. FIG. 6 is a block diagram of the mobile terminal 3.

The mobile terminal owned by the user 5 who uses the local information distribution system 1 means a mobile information terminal such as a smartphone or a tablet terminal. As shown in FIG. 6, the mobile terminal 3 includes a processor 300 that executes various processes related to the operation of the mobile terminal 3, a touch panel 301, and a mobile communication module 302 that performs wireless communication in accordance with mobile communication standards such as LTE. , a position measurement module 303 that measures current location information, and an NVM 304 that is an electrically rewritable nonvolatile memory. The touch panel 301 is a module that combines a display device and a touch screen, and the position measurement module 303 uses GPS (Global Positioning System), a wireless base station of a mobile communication network, a wireless LAN (Local Area Network), etc. , a module that measures current location information in latitude and longitude format.

The NVM 304 of the mobile terminal 3 stores a location information service application 305 that transmits the current location information measured by the location measurement module 303 to the local information distribution device 2 and displays the local information received from the local information distribution device 2 on the touch panel 301. has been done. By activating the location information service application 305, the processor 300 of the mobile terminal 3 functions as the location information service means 30 according to the present invention.

From here, the operation of the regional information distribution system 1 will be explained. The description of the operation of the local information distribution system 1 includes a description of the local information distribution method according to the present invention, a description of the local information distribution means 20 provided in the local information distribution device 2, and a description of the location information service means 30 provided in the mobile terminal 3. It also serves as an explanation. FIG. 7 is a diagram illustrating the operation of the regional information distribution system 1.

When the user 5 receives regional information from the regional information distribution device 2, the user 5 starts the location information service application 305, and the location information service means 30 started on the mobile terminal 3 receives the current location from the location measurement module 303. After acquiring the information, the current location information acquired from the position measurement module 303 is transmitted to the local information distribution device 2 (step S1).

The local information distribution means 20 of the local information distribution device 2 executes a process for determining the center coordinates 22a of the mesh 22 containing the current location information received from the mobile terminal 3 as matching coordinates for each mesh distance handled by the local information distribution device 2. (Step S2). According to FIG. 3, the local information distribution means 20 of the local information distribution device 2 calculates a total of six matching coordinates for each of the 50 m mesh 220 to the 1600 m mesh 225. Note that the mesh 22 that includes the current location information received from the mobile terminal 3 has the latitude and longitude corresponding to the coordinate origin of the mesh 22, which is common to all mesh 22 types, and the latitude interval and longitude that correspond to the mesh 22 type. It can be determined from the interval.

Next, the local information distribution means 20 of the local information distribution device 2 performs a process of searching the area DB 203 for area names that are associated with the same coordinates as the matching coordinates, using the matching coordinates in descending order of mesh distance. The process is continued until this area name can be searched from the area DB 203 (step S3).

According to FIG. 3, the matching coordinates initially used by the local information distribution means 20 of the local information distribution device 2 are the matching coordinates of the 50 m mesh 220. If the area name associated with the same coordinates as the matching coordinates of the 50m mesh 220 cannot be searched from the area DB 203, the matching coordinates that the local information distribution means 20 of the local information distribution device 2 will use next will be the matching coordinates of the 100m mesh 221. . Note that the matching coordinates are used in descending order of mesh distance because, as illustrated in FIG. 5 and the like, other areas 21 smaller than this can be provided within the area 21.

If the area name associated with the same coordinates as the matching coordinates can be searched, the local information distribution means 20 of the local information distribution device 2 finishes the process of searching the area DB 203 for the area name associated with the same coordinates as the matching coordinates. Then, a process is executed to acquire the regional information ID associated with this area name from the distribution management table 2040 of the regional information DB 204 (step S4). For example, if the local information distribution means 20 of the local information distribution device 2 is able to search the area DB 203 for an area name that is associated with the same coordinates as the matching coordinates of the 50m mesh 220, the area name used to search for the local information ID is This is the area name associated with the same coordinates as the matching coordinates of the 50m mesh 220. In addition, the local information distribution means 20 of the local information distribution device 2 is unable to search the area DB 203 for an area name that associates the same coordinates as the matching coordinates of the 50m mesh 220, and associates the same coordinates as the matching coordinates of the 100m mesh 221. If the name of the area where the area is located can be searched from the area DB 203, the area name used to search for the local information ID will be the area name associated with the same coordinates as the matching coordinates of the 100m mesh 221.

Next, the local information distribution means 20 of the local information distribution device 2 performs processing to acquire the local information corresponding to the local information ID acquired from the distribution management table 2040 of the local information DB 204 from the local information table 2041 of the local information DB 204. (Step S5), a process of transmitting the regional information acquired from the regional information table 2041 to the mobile terminal 3 is executed (Step S6). Note that if there is a plurality of pieces of area information acquired from the area information table 2041, it is preferable to send a menu screen displaying a list of area information to the mobile terminal 3.

The location information service means 30 activated on the mobile terminal 3 that has received the local information from the local information distribution device 2 performs a process of displaying the local information received from the local information distribution device 2 on the touch panel 301 (step S7), The procedure illustrated in FIG. 7 ends.

1 Regional information distribution system 2 Regional information distribution device 20 Regional information distribution means 21 Area 22 Mesh 203 Area DB
204 Regional information DB
3 Mobile terminal 30 Location information service means

Claims (3)

an area DB in which, for each area defined by the center coordinates of at least one mesh, the center coordinates of the mesh used to define the area are registered in association with the area name used to identify the area;
a regional information DB in which regional information to be distributed to users in the area identified by the area name in association with the area name is registered for each of the area names registered in the area DB;
determining the center coordinates of a mesh containing current location information obtained from a mobile terminal owned by the user, and performing a process of searching the area DB for the area name to which the center coordinates of the mesh containing the current location information are associated; a regional information distribution means for searching regional information corresponding to the area name from the regional information DB and distributing it to a mobile terminal;
Prepare,
A plurality of types of meshes having the same coordinate origin and varying mesh distances according to a power of two are used as the meshes that define the area, and the regional information distribution means transmits current location information for each of the plurality of mesh types. Find the center coordinates of the mesh containing the current location information, and search the area DB for the area name associated with the center coordinates of the mesh containing the current location information, starting from the mesh with the smallest mesh distance.
A regional information distribution device characterized by: A local information distribution system comprising at least a mobile terminal owned by a user and a local information distribution device that distributes local information to the user,
The regional information distribution device registers, for each area defined by the center coordinates of at least one mesh, the center coordinates of the mesh used to define the area in association with the area name used to identify the area. An area DB, a regional information DB in which regional information is registered for each area name registered in the area DB, and is distributed to users in the area identified by the area name in association with the area name; calculates the center coordinates of the mesh containing the current location information obtained from the mobile terminal owned by the user, executes processing to search the area DB for the area name to which the center coordinates of the mesh containing the current location information is associated, and comprising a regional information distribution means for searching regional information corresponding to the area name from the regional information DB and distributing it to a mobile terminal;
The mobile terminal includes a location information service means for transmitting the current location information acquired from the position measurement module to the local information distribution device and displaying the local information acquired from the local information distribution device,
A plurality of types of meshes having the same coordinate origin and varying mesh distances according to a power of two are used as the meshes that define the area, and the regional information distribution means transmits current location information for each of the plurality of mesh types. Find the center coordinates of the mesh containing the current location information, and search the area DB for the area name associated with the center coordinates of the mesh containing the current location information, starting from the mesh with the smallest mesh distance.
A regional information distribution system characterized by: For each area defined by a mobile terminal owned by the user and the center coordinates of at least one mesh, register the center coordinates of the mesh used to define the area in association with the area name used to identify the area. and a regional information DB in which, for each area name registered in the area DB, regional information is associated with the area name and distributed to users in the area identified by the area name. A regional information distribution method comprising an information distribution device,
step a in which the mobile terminal transmits the current location information acquired from the position measurement module to the local information distribution device;
step b, where the regional information distribution device determines the center coordinates of a mesh that includes the current location information acquired from the mobile terminal;
step c, in which the regional information distribution device searches the area DB for the area name to which the center coordinates of the mesh containing the current location information are associated;
step d, wherein the regional information distribution device searches the regional information DB for regional information associated with the area name searched in step c, and delivers it to the mobile terminal;
step e, in which the mobile terminal displays regional information distributed from the regional information distribution device;
including,
As the meshes that define the area, multiple types of meshes are used that have the same coordinate origin and mesh distances that vary according to powers of 2,
In step b, the regional information distribution device determines the center coordinates of the mesh that includes the current location information for each of the plurality of types of meshes;
In the step c, the regional information distribution device performs a process of searching the area DB for the area name to which the center coordinates of the mesh containing the current location information are associated, starting from the mesh with the smallest mesh distance.
A regional information distribution method characterized by:

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