JP2008301412A - Message distribution system, control device, and message distribution method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a message distribution system, a control device and a message distribution method by which messages can simultaneously be distributed to a specific area such as a city, ward, town or village. <P>SOLUTION: This message distribution system includes: a radio base station which manages a radio area; and a control device which distributes a message to terminal devices located within the radio area via the radio base station. The control device includes: a storage section for correspondingly storing area identification information for identifying the area specified based on a representative position in the radio area and the radio area; a receiving section for receiving the message and the area identification information for identifying the area that is a message distribution destination; a specification section for specifying the radio area corresponding to the received area identification information on the basis of the area identification information; and a distribution section for simultaneously distributing the message to terminal devices located within the specified radio area. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a message delivery system, a control device, and a message delivery method for delivering a message to a terminal device located in a wireless area via a wireless base station that manages the wireless area.

  Conventionally, when a disaster such as an earthquake, tsunami, or heavy rain occurs, a message distribution system that simultaneously distributes information related to the disaster to terminal devices such as fixed telephones has been proposed (for example, see Patent Document 1). In recent years, portable terminal devices such as mobile phones have become widespread, and since many individual users own terminal devices, information on disasters is distributed to the terminal devices using a mobile communication network. The movement to do is increasing.

In a mobile communication network, a radio area called an LAI (Local Area Identifier) is used in order to grasp which radio area is located in a radio area formed by a plurality of radio base stations. Identification information to be identified is defined, and a radio area in which the terminal device is located is managed by associating the LAI with the terminal device. Further, in such a mobile communication network, it is possible to broadcast messages to terminal devices located in a specific wireless area using LAI.
JP 2001-285509 A

  Here, generally, when a disaster occurs, information related to the disaster is notified from an administrative organization such as a central government office or a local government for each administrative management area such as a municipality where the disaster has occurred.

  However, in the above-described mobile communication network, the wireless area corresponding to LAI is not set in consideration of administrative management areas such as municipalities, and the configuration of an exchange, a wireless base station, etc. on the mobile communication network It is set based on. In addition, each radio base station is basically arranged for the purpose of appropriately forming the coverage area (radio area) of the terminal device, and is therefore arranged according to the administrative management area such as a municipality. Absent.

  In such a situation, even if the message distributor wants to distribute the message all at once to a terminal device located in a certain municipality using the mobile communication network, the administrative management of the municipality, etc. Since the area and the wireless area are set for different areas, there is a problem that the wireless area corresponding to the administrative management area cannot be specified.

  Therefore, the present invention has been made in view of the above-described problems, and provides a message distribution system, a control device, and a message distribution method capable of simultaneously distributing messages to a specific area such as a municipality. For the purpose.

  In order to achieve the above object, a first feature of the present invention is that a radio base station that manages a radio area and the radio base station are connected to a terminal device that is located in the radio area (a cell or sector that is a radio area). A message delivery system comprising a control device (service control device 200) for delivering a message via the region, wherein the control device identifies region identified based on a representative position of the wireless area; A storage unit (area information storage unit 210) that stores the wireless area in association with each other, and a reception unit (message distribution) that receives the message and the region identification information that identifies the region to which the message is distributed. A request signal receiving unit 220) and a specifying unit (distribution) for specifying the wireless area corresponding to the region identification information based on the received region identification information A rear specifying unit 240), it is an summarized in that and a delivery unit for delivering broadcast the message to the terminal device existing in the wireless area specified (message delivery unit 250).

  According to this feature, the message distribution system stores the area identification information for identifying the area specified based on the representative position of the radio area and the radio area in association with each other, and stores the message and the area identification information. When received, the message is broadcast to the wireless area corresponding to the area identification information.

  Therefore, in the message delivery system, even if the message distributor delivers a message to an area that is classified for each administrative management area, the message is delivered to a wireless area associated with the area, that is, Messages can be distributed to areas that are classified by administrative management area. Thus, according to this feature, it is possible to simultaneously distribute messages to a specific area such as an administrative management area.

  A second feature of the present invention relates to the first feature, wherein the wireless area is a wireless region of the whole wireless base station, and the storage unit is a sector of a sector obtained by dividing the wireless region of the whole wireless base station. The gist is to store the area identification information for identifying the area including a larger number of center positions and positions of the radio base station in association with the radio area of the entire radio base station. It is. According to such a feature, in the message delivery system, for example, when the radio area of the entire radio base station extends over a plurality of areas, the number of the center position of the sector into which the radio area is divided and the position of the radio base station is A message is distributed using a more contained area as a wireless area. Therefore, the message can be distributed to an area corresponding more accurately to the radio area of the entire radio base station.

  A third feature of the present invention relates to the first feature, wherein the wireless area is a wireless region of the whole wireless base station, and the storage unit is a sector obtained by dividing the wireless region of the whole wireless base station. The gist of the invention is to store the area identification information for identifying the area including the center position and the radio area of the entire radio base station in association with each other. According to such a feature, in the message distribution system, for example, when the radio area of the entire radio base station extends over a plurality of areas, the message is distributed to any area including the center position of the sector obtained by dividing the radio area of the entire radio base station. , Deliver the message. Therefore, it is possible to cover the radio area more reliably and deliver the message to the area.

  A fourth feature of the present invention relates to the first feature, wherein the wireless area is a sector obtained by dividing a wireless region of the entire wireless base station, and the storage unit includes a center position of the sector. The gist is to store the region identification information for identifying a region in association with the sector. According to such a feature, in the message delivery system, it is possible to deliver a message by associating the wireless area with a region more precisely and accurately.

  A fifth feature of the present invention relates to the first feature, wherein the wireless area is a wireless region of the entire wireless base station, and the storage unit is within a predetermined distance from the position of the wireless base station. The gist is to store the area identification information for identifying the area including at least a part thereof and the radio area of the entire radio base station in association with each other.

  A sixth feature of the present invention is according to the first feature, wherein the radio area is a sector obtained by dividing a radio area of the whole radio base station, and the storage unit has a predetermined distance from the center position of the sector. The gist is to store the region identification information for identifying the region including at least part of the range in association with the sector.

  According to a seventh aspect of the present invention, there is provided a control device that is connected to a radio base station that manages a radio area and distributes a message to a terminal device located in the radio area via the radio base station. Area identification information for identifying an area specified based on a representative position of the area, a storage unit that stores the wireless area in association with each other, the message, and the area that identifies the area to which the message is distributed A receiving unit that receives region identification information, a specifying unit that specifies the wireless area corresponding to the region identification information based on the received region identification information, and the area located in the specified wireless area The gist of the invention is that the terminal device is provided with a delivery unit that delivers the message all at once.

  According to an eighth aspect of the present invention, there is provided a message in a message distribution system comprising: a radio base station that manages a radio area; and a control device that delivers a message to the terminal device located in the radio area via the radio base station. A distribution method, wherein the control device stores area identification information for identifying an area specified based on a representative position of the radio area, and the radio area in association with each other, the message, A receiving step for receiving the region identification information for identifying the region to which the message is distributed, and a specifying step for specifying the wireless area corresponding to the region identification information based on the received region identification information And a delivery step of delivering the message simultaneously to the terminal devices located in the specified wireless area. It is an.

  ADVANTAGE OF THE INVENTION According to this invention, the message delivery system, control apparatus, and message delivery method which can deliver a message to specific areas, such as a municipality, simultaneously using a mobile communication network can be provided.

Embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic.

[First Embodiment]
(Configuration of message delivery system)
A configuration of the message delivery system 1 according to the first embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing a configuration of a message delivery system 1 according to the present embodiment. As shown in FIG. 1, the message distribution system 1 according to the present embodiment includes a distribution device 100, a service control device 200, terminal devices 10_1 to 10_n (n is a natural number), and radio base stations 20_1 to 20_m (m is Natural number). In the message distribution system 1 according to the present embodiment, the service control apparatus 200 and the radio base stations 20_1 to 20_m are assumed to be mobile communication networks.

  The distribution apparatus 100 receives a message distribution destination and a message body via a user interface such as a keyboard operated by a user who is a message distributor. Here, in the present embodiment, the message is information for notifying the user of the terminal devices 10_1 to 10_n of information related to the disaster when a disaster or the like occurs, for example. The distribution destination is an administrative management area such as a municipality. The distribution apparatus 100 transmits the received message to the service control apparatus 200.

  When the service control device 200 receives the message from the distribution device 100, the service control device 200 distributes the message to the terminal devices 10_1 to 10_n located in the wireless area corresponding to the administrative management area accepted as the distribution destination via the wireless base stations 20_1 to 20_m. To do. In the present embodiment, the service control device 200 constitutes a control device that distributes messages via a radio base station.

  The radio base stations 20_1 to 20_m manage a radio area such as a cell indicating a radio area of the entire base station, a sector that divides the radio area, and the terminal device 10 located in the cell and the sector. Communicate using wireless signals. In addition, the radio base stations 20_1 to 20_m include a simultaneous delivery unit 20a. When receiving a message from the service control device 200, the simultaneous delivery unit 20a broadcasts the received message to the terminal devices 10 located in the wireless area (multicast delivery). At this time, the simultaneous delivery unit 20a broadcasts a message using, for example, a general call channel (paging channel) monitored by the terminal device 10 in a standby state. In the present embodiment, the identification information for identifying the radio base stations 20_1 to 20_m is described as “BS1 to BSm”, respectively. In the present embodiment, the radio base stations 20_1 to 20_m will be described as the radio base station 20 as appropriate.

  The terminal devices 10_1 to 10_n communicate with the radio base station 20 using radio signals. In addition, the terminal devices 10_1 to 10_n receive messages transmitted from the radio base station 20 all at once. In the present embodiment, the terminal devices 10_1 to 10_n will be described as the terminal device 10 as appropriate. In the present embodiment, the terminal device 10 is assumed to be a mobile device such as a mobile phone, a PDA (Personal Digital Assistant), or a notebook computer.

(Configuration of distribution device)
The configuration of the distribution apparatus 100 described above will be specifically described. As shown in FIG. 1, the distribution apparatus 100 includes an area reception unit 110 and a message distribution request signal transmission unit 120.

  The area reception unit 110 receives an area input by a distribution source user by operating a user interface as a message distribution destination. For example, if the area receiving unit 110 uses a function such as a check box selection on the Web screen to receive a message that the delivery source user wants to send a message to A city, “00001” is used as area identification information for identifying A city. Is output to the message delivery request signal transmission unit 120.

  The message delivery request signal transmission unit 120 accepts the text of a message input by the delivery source user operating the user interface. Further, the message delivery request signal transmission unit 120 generates a message delivery request signal including the area identification information input from the area reception unit 110 and the text of the message, and transmits the message delivery request signal to the service control apparatus 200.

(Service control device configuration)
Next, the configuration of the service control apparatus 200 described above will be specifically described. As shown in FIG. 1, the service control apparatus 200 includes an area information storage unit 210, a message distribution request signal receiving unit 220, a distribution area analysis unit 230, a distribution area specifying unit 240, and a message distribution unit 250.

  As shown in FIG. 2, the area information storage unit 210 stores area identification information for identifying an area and a wireless area in association with each other. In the present embodiment, the radio area is the radio area (cell) of the entire radio base station 20. Specifically, as shown in FIG. 2, the area information storage unit 210 includes area identification information for identifying an area that is an administrative management area such as a municipality, and radio base station identification information for identifying the radio base station 20. Are stored in association with each other. Here, in the present embodiment, the wireless area is a wireless area formed by one wireless base station 20, and the wireless base station identification information is identification information for identifying the wireless area. The area identification information and the radio base station identification information stored in the area information storage unit 210 are stored in association with each other by a predetermined setting method. Details of the setting method will be described later. In the present embodiment, the area information storage unit 210 configures a storage unit that stores area identification information and a wireless area in association with each other.

  The message distribution request signal receiving unit 220 is connected to the distribution apparatus 100 and receives a message distribution request signal including a message and area identification information for identifying an area to which the message is distributed from the distribution apparatus 100. In the present embodiment, the message delivery request signal receiving unit 220 constitutes a receiving unit that receives a message and area identification information.

  When the message distribution request signal is received by the message distribution request signal receiving unit 220, the distribution area analysis unit 230 extracts the message body and the region identification information from the message distribution request signal, and sends them to the distribution area specifying unit 240. Output.

  The distribution area specifying unit 240 specifies a wireless area corresponding to the region identification information based on the region identification information received by the message distribution request signal receiving unit 220. Specifically, when the message area and the area identification information are input from distribution area analysis section 230, distribution area specifying section 240 refers to area information storage section 210 and is stored in association with the area identification information. Specify radio base station identification information. Taking FIG. 2 as an example, for example, when “00001” is output as the region identification information from the distribution area analysis unit 230, the distribution area specifying unit 240 stores the radio base stored in association with the “00001”. Station identification information “BS1”, “BS2”, and “BS3” are specified.

As described above, the distribution area specifying unit 240 specifies the radio area to which the message is distributed by specifying the radio base station identification information based on the area identification information. In addition, distribution area specifying section 240 outputs the specified radio base station identification information and the text of the message to message distribution section 250. In the present embodiment, the distribution area specifying unit 240 constitutes a specifying unit that specifies a wireless area corresponding to the area identification information.

  The message distribution unit 250 distributes messages to the terminal devices 10 located in the wireless area specified by the distribution area specifying unit 240 at the same time.

Specifically, the message distribution unit 250 inputs the radio base station identification information and the text of the message from the distribution area specifying unit 240, and simultaneously distributes the message to the radio base station 20 corresponding to the radio base station identification information. Instruct to do. In the present embodiment, the message delivery unit 250 constitutes a delivery unit that delivers messages all at once.

(Association method between area identification information stored in area information storage unit and wireless area)
Next, a method for setting information stored in the area information storage unit 210 will be described with reference to FIGS. FIG. 3 shows an image of A city and B city indicating a region, a wireless area formed by the wireless base stations 20_1 to 20_7, and the terminal device 10 located in the wireless area. Here, as shown in FIG. 3, a description will be given of a setting method for associating region identification information for identifying cities A to B with the radio base stations 20_1 to 20_7 included in the cities A to B. To do. It is assumed that the radio base station 20_3 is arranged across A city and B city. In this embodiment, the area identification information for identifying the A city indicating the area is “00001”, and the area identification information for identifying the B city is “00002”.

  The radio range of the radio base station 20 according to the present embodiment is divided by a plurality of sectors. Here, first, a calculation method of the center position in one sector of the radio base station 20 will be described.

FIG. 4 is a diagram showing a physical configuration of the radio base station 20 and beam irradiation. In FIG. 4, “h” indicates the antenna height, and “φ” indicates the angle of the beam (hereinafter, tilt angle) irradiated in the Z-axis direction from the horizontal plane (hereinafter, XY plane). Also, assuming that the ground surface is formed ideally parallel to the XY plane, the radius “r” of the sector formed by the beam is expressed by the following equation (1).

FIG. 5 is a view of the XY plane in the Z-axis direction in the diagram shown in FIG. As shown in FIG. 5, the beam irradiated from the antenna of the radio base station 20 is irradiated in the range of the antenna opening angle 2θ with respect to the XY plane. When θ is less than 180 °, the shape of the range of the beam irradiated in the XY plane is a fan shape. Using the sector radius r calculated by the equation (1), the distance g between the center position of the sector on the XY plane and the radio base station 20 is expressed by the following equation (2).

FIG. 6 is a diagram when the XY plane in FIG. 5 is represented by a latitude and longitude plane. In FIG. 6, α is an angle indicating the directivity of the antenna in the clockwise direction (hereinafter referred to as the antenna direction angle) with reference to true north (Y-axis direction). Lng0 indicates the longitude of the installation position of the radio base station 20, and Lat0 indicates the latitude of the installation position of the radio base station 20. Using the distance g between the center position of the sector and the installation position of the radio base station 20 calculated by the expression (2), the latitude Lng1 and the longitude Lat1 indicating the center position of the sector are expressed by the following expression (3). Indicated.

  As described above, based on the information on the physical configuration and electrical configuration of the radio base station 20 and the antenna, and the information on the installation position of the radio base station 20, the center position of each sector of the radio base station 20 is determined. It can be calculated.

  7 shows an enlarged view of the radio base station 20_3 in FIG. Here, it is assumed that the radio base station 20_3 has an antenna opening angle of 60 ° and has six sectors formed by beams emitted from the antenna. As shown in FIG. 7, in the radio base station 20_3, there is a boundary line L between the cities A and B in the radio area. That is, the radio area of the radio base station 20_3 straddles A city and B city. In the area information storage unit 210, for such a radio base station 20_3, a total of seven positions of the sector center positions 001 to 006 and the position of the radio base station 20_3 are set as the representative positions, and the radio base station 20_3 is determined based on the representative positions. The A city or B city associated with the base station 20_3 is specified, and the specified A city or B city and the radio base station 20_3 are stored in association with each other. Specifically, in the area information storage unit 210, the city A or the city B that includes more of the seven positions of the sector center positions 001 to 006 and the position of the wireless base station 20_3, and the wireless The base station 20_3 is associated. For example, taking FIG. 7 as an example, in the area information storage unit 210, the area identification information “00001” of city A including the sector center positions 001 to 003, 006 and the position of the radio base station 20_3, and the radio base The base station identification information BS3 of the station 20_3 is stored in association with each other.

  In this way, in the area information storage unit 210 according to the present embodiment, the area identification information for identifying the area specified based on the representative position of the radio area of the radio base station 20 and the radio base station 20 Station identification information (radio area identification information) is stored in association with each other. Further, in the area information storage unit 210, area identification information for identifying an area in which the number of the center position of a sector obtained by dividing the entire radio area of a certain radio base station 20 and the position of the radio base station 20 is more included. The radio base station identification information of the radio base station 20 is stored in association with each other.

(Operation of message delivery system)
Next, the operation of the message delivery system 1 configured as described above will be described with reference to FIG.

  In step S101, in the service control apparatus 200, in the area information storage unit 210, area identification information for identifying an administrative management area such as a municipality and radio base station identification information for identifying the radio area of the radio base station 20 are obtained. Store in association with each other. Information stored in the service control apparatus 200 may be input by a user operation.

  In step S102, in the distribution apparatus 100, the area reception unit 110 receives a message distribution destination from the input operation of the distribution source user. Further, the message distribution request signal transmission unit 120 accepts the message body from the input operation of the distribution source user.

  In step S <b> 103, the message delivery request signal transmission unit 120 generates a message delivery request signal including area identification information for identifying the delivery destination area of the message and a message body, and transmits the message delivery request signal to the service control apparatus 200. In step S104, in the service control apparatus 200, the message delivery request signal receiving unit 220 receives the message delivery request signal.

  In step S <b> 105, the distribution area analysis unit 230 extracts region identification information and a message text from the message distribution request signal received by the message distribution request signal reception unit 220, and outputs them to the distribution area specifying unit 240.

  In step S106, the distribution area specifying unit 240 inputs the area identification information and the message text. Further, the distribution area specifying unit 240 refers to the area information storage unit 210, specifies the radio base station identification information stored in association with the area identification information, and sets the radio base station corresponding to the radio base station identification information. The radio area of the station 20 is specified as a radio area. In addition, the delivery area specifying unit 240 outputs the radio base station identification information and the message text to the message delivery unit 250.

  In step S107, the message delivery unit 250 inputs the radio base station identification information and the message text. Further, the message delivery unit 250 instructs the wireless base station 20 corresponding to the wireless base station identification information to broadcast the message all at once. In the wireless base station 20 that has received this instruction, the simultaneous delivery unit 20a broadcasts messages to the terminal devices 10 located in the wireless area.

(Function and effect)
As described above, in the message delivery system 1, the area information storage unit 210 includes the area identification information for identifying the area specified based on the representative position of the radio area (radio area) of the radio base station 20, and the radio area. Are stored in association with each other. In addition, when the service control apparatus 200 receives a message and area identification information from the distribution apparatus 100, the service control apparatus 200 distributes the message simultaneously to a wireless area corresponding to the area identification information.

  As described above, in the message distribution system 1 according to the present embodiment, even when the distribution source user distributes a message to an area divided for each administrative management area, the message is distributed to the wireless area associated with the area. The message can be distributed, that is, the message can be distributed to an area divided for each administrative management area. Thus, according to the message delivery system 1 according to the present embodiment, messages can be delivered simultaneously to a specific area such as an administrative management area.

  In the message delivery system 1, for example, when the radio area of the entire radio base station 20 extends over a plurality of areas (for example, A city and B city), the center position of the sector into which the radio area is divided, and the radio base station 20 The message is distributed using a region including a larger number of locations as a wireless area. Therefore, the area corresponding to the radio area of the entire radio base station 20 can be specified more accurately and the message can be distributed.

[Second Embodiment]
The configuration of the message delivery system 1 according to the second embodiment of the present invention will be described by focusing on the differences from the first embodiment. In the present embodiment, the setting method for associating the area identification information stored in the area information storage unit 210 with the area information is different from that in the area information storage unit 210 according to the first embodiment.

  In the area information storage unit 210 according to the first embodiment, an area that identifies an area in which the number of the center positions of the sectors obtained by dividing the radio area of the entire radio base station 20 and the positions of the radio base stations 20 is more included. Although the identification information and the radio area of the entire radio base station 20 are configured to be associated with each other and stored, the area information storage unit 210 according to the present embodiment divides the radio area of the entire radio base station 20. The area identification information for identifying the area including the center position of the sector and the radio area of the entire radio base station 20 are stored in association with each other.

  Specifically, the area information storage unit 210 identifies a region including any one of a plurality of sector center positions and the position of the radio base station 20, and identifies the identified region. And the radio base station identification information are stored in association with each other. For example, taking FIG. 7 as an example, in the area information storage unit 210, the area identification information “00001” of city A including the sector center positions 001 to 003, 006 and the position of the radio base station 20_3, and the radio base The radio base station identification information “BS3” of the station 20_3 is stored in association with each other. Further, in the area information storage unit 210, the area identification information “00002” of the city B including the positions of the sector center positions 004 to 005 is associated with the radio base station identification information “BS3” of the radio base station 20_3. Remembered. In this way, in the area information storage unit 210, as shown in FIG. 9, both the area identification information “00001” of city A and the area identification information “00002” of city B are stored in the radio base station 20_3. Radio base station identification information “BS3” is stored in association with each other.

(Function and effect)
According to the message distribution system 1 according to the present embodiment, for example, when the radio area of one radio base station 20 extends over a plurality of areas, the center position of the sector obtained by dividing the radio area of the radio base station 20 is included. The message is also distributed as a wireless area of the wireless base station 20. Therefore, it is possible to distribute the message more reliably covering the area.

(Modification according to the second embodiment)
The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the area information storage unit 210 associates and stores area identification information for identifying an area including at least a part within a predetermined distance from the position of the radio base station 20 and the radio area of the entire radio base station 20. It may be configured. Specifically, the area information storage unit 210 includes area identification information of an area that is at least partially included in a range of a predetermined distance R (predetermined distance) from the position (Lng0, Lat0) of the radio base station 20. The radio base station 20 is stored in association with each other.

  For example, when the radio base station 20_3 exists as shown in FIG. 10, in the area information storage unit 210 according to the present embodiment, at least part of the distance R from the position (Lng0, Lat0) of the radio base station 20_3. The area identification information “00001” of city A, the area identification information “00002” of city B, and the radio base station identification information “BS3” of the radio base station 20_3 are stored in association with each other. Further, in the area information storage unit 210, for the other radio base stations 20, the radio base station identification information and the area identification of A city or B city that is at least partially included within the distance R from the radio base station 20 Information is stored in association with each other.

The distance R described above may be configured to be calculated based on regional conditions such as “population density” of the region where the radio base station 20 is provided. For example, the distance R may be calculated based on the following equation (4).

  Here, in equation (4), “r” is a constant indicating a predetermined distance, and “α” is a local condition such as “population density” of the area where the radio base station 20 is provided. This is a parameter value for adjustment determined accordingly. The parameter value “α” is set to a larger value as the “population density” increases. The “population density” is merely an example, and the parameter value “α” may be set based on the regional conditions of the region where the wireless base station 20 is provided, such as “commercial region” and “residential region”. Good.

  Further, the parameter value “α” may be configured to change every predetermined period (several hours, several days, several weeks, several months). For example, the parameter value “α” may be configured to have a large value in the daytime period and a small value in the nighttime period during the daytime period. In this case, as shown in FIG. 1, the area setting unit 260 provided in the service control apparatus 200 calculates the distance R from the equation (4) according to the change in the time zone. Then, the area setting unit 260 associates the area identification information at least partially included in the calculated range of the distance R with the radio base station identification information of the radio base station 20 and stores them in the area information storage unit 210. To do.

  The message delivery system 1 according to the present embodiment can achieve the same effects as those of the second embodiment described above.

[Third Embodiment]
The configuration of the message delivery system 1 according to the third embodiment of the present invention will be described by paying attention to differences from the first embodiment. In the present embodiment, the setting method for associating the area identification information stored in the area information storage unit 210 with the area information is different from that in the area information storage unit 210 according to the first embodiment.

  In the area information storage unit 210 according to the present embodiment, the radio area is provided in units of sectors obtained by dividing the radio area of the entire radio base station 20, and includes area identification information for identifying an area including the center position of the sector. The sector is stored in association with each other.

  For example, when the radio base station 20_3 exists as shown in FIG. 7, the area information storage unit 210 according to the present embodiment includes the area identification information “00001” of the city A including the sector center positions 001 to 003 and 006. And sector identification information “S01 to S03” for identifying the sector of the radio base station 20_3 and “S06” are stored in association with each other. Further, in the area information storage unit 210, area identification information “00002” of city B including the positions of the sector center positions 004 to 005, and sector identification information “S04 to S05” for identifying the sector of the radio base station 20_3, Are stored in association with each other. In this way, as shown in FIG. 11, the area information storage unit 210 includes the area identification information “00001” for city A and the area identification information “00002” for city B, and the center position of each sector. Sector identification information is stored in association with each other.

(Function and effect)
According to the message delivery system 1 according to the present embodiment, the area information storage unit 210 stores area identification information for identifying an area and sector identification information for identifying each sector of the radio base station 20 in association with each other. Therefore, it is possible to associate the radio area and the area where the message is transmitted more precisely and accurately. Therefore, a message can be distributed to a wireless area associated more accurately in the administrative management area.

(Modification according to the third embodiment)
The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the area information storage unit 210 may be configured to store the area identification information for identifying the area including at least a part within a predetermined distance from the center position of the sector and the sector in association with each other. Good. Specifically, the area information storage unit 210 includes region identification information of a region that is at least partially included in a range of a predetermined distance R (predetermined distance) from the center position (Lng1, Lat1) of the sector, Are stored in association with each other.

  Here, for example, when the radio base station 20_3 exists as illustrated in FIG. 12, the description will be made focusing on the sector S05 of the radio base station 20_3. In the area information storage unit 210 according to the present embodiment, the area identification information “00001” of A city that is at least partially included in the range of the distance R from the center position “005 (Lng1, Lat1)” of the sector, Area identification information “00002” and sector identification information “S05” are stored in association with each other. In the area information storage unit 210, for other sectors, sector identification information for identifying the sector, and area identification information for A city or B city that is at least partially included within the distance R from the center position of the sector. Are stored in association with each other.

  The distance R may be a distance from the position (Lng0, Lat0) of the radio base station 20 to the center position (Lng1, Lat1) of the sector. Further, as in the modification according to the second embodiment described above, the distance R is calculated based on the above equation (4) according to the regional conditions such as “population density” of the region where the center position of the sector exists. It may be configured as follows. In the above equation (4), the parameter value “α” may be configured to change every predetermined period (several hours, several days, several weeks, several months). In this case, as shown in FIG. 1, the area setting unit 260 provided in the service control apparatus 200 calculates the distance R from the equation (4) according to the change in the time zone. Then, the area setting unit 260 associates the sector identification information for identifying the sector with the area identification information at least partially included in the range of the calculated distance R and stores it in the area information storage unit 210.

  The message delivery system 1 according to the present embodiment can achieve the same effects as those of the third embodiment described above.

[Fourth Embodiment]
The structure of the message delivery system 1 which concerns on 4th Embodiment of this invention is demonstrated. In the present embodiment, the configuration of the terminal device 10 is different from that of the first embodiment. For example, as shown in FIG. 13, when the radio area of the radio base station 20_3 extends between A city and B city, the terminal device 10_1 is broadcast to A city even if it exists in B city. It is also assumed that the distributed message is received and this message is notified to the user of the terminal device 10_1. The terminal device 10 according to the present embodiment has a function of selecting messages distributed simultaneously to A city or B city.

  Specifically, as illustrated in FIG. 14, the terminal device 10 includes a sorting unit 10a and a display unit 10b. The selection unit 10a receives the simultaneously distributed message and selects whether the message is a message distributed to City A or City B. Here, the sorting unit 10a may be configured to determine whether the terminal device 10 currently exists in the A city or the B city by a user input, or a map stored in advance. You may be comprised so that it may determine based on the positional information measured by information and the GPS function. In the message distribution system 1, the radio base station 20 transmits area identification information for identifying A city or B city together with the message, and the sorting unit 10a determines whether the message is A city or B based on the received area identification information. Select which of the B cities the message is delivered to. Taking FIG. 11 as an example, the sorting unit 10a displays the message on the display unit 10b only when a message distributed to City B is received.

(Function and effect)
According to the message delivery system 1 according to the present embodiment, the terminal device 10 selects and displays the message delivered to A city or B city, so that the user of the terminal device 10 can be displayed. Thus, the message delivered to the area can be notified more appropriately.

[Other embodiments]
Although the present invention has been described according to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the above-described embodiment, the area is described as an administrative management area such as a municipality, but the area may be an area such as a baseball field or a ski resort.

  In the above-described embodiment, the center position of the sector and the installation position of the radio base station 20 are described as representative positions. However, the representative position may be only the center position of the sector or the installation position of the radio base station 20. It is good only as well.

In addition, the representative position in the sector is not limited to the center position, and may be another position such as an end point of the sector. Further, the representative position in the sector is not limited to one, and a plurality of representative positions may be provided.

  As described above, the present invention naturally includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

It is a figure which shows the whole schematic structure of the message delivery system which concerns on 1st Embodiment. It is a figure which shows the information memorize | stored in the area information storage part which concerns on 1st Embodiment. In 1st Embodiment, it is an image figure which shows the relationship of the area of A city and B city, and the radio | wireless area | region of a radio base station, and the terminal device in a standby state in the said radio | wireless area | region. It is a figure which shows the physical structure of the wireless base station which concerns on 1st Embodiment, and the beam range irradiated from a wireless base station. It is a figure which shows the physical structure of the wireless base station which concerns on 1st Embodiment, and the beam range irradiated from a wireless base station. It is a figure which shows the physical structure of the wireless base station which concerns on 1st Embodiment, and the beam range irradiated from a wireless base station. It is an image figure which shows the positional relationship of six sectors of the wireless base station which concerns on 1st Embodiment, and A city and B city. It is a flowchart which shows operation | movement of the message delivery system which concerns on 1st Embodiment. It is a figure which shows the information memorize | stored in the area information storage part which concerns on 2nd Embodiment. It is an image figure which shows the positional relationship of the radio base station which concerns on the modification of 2nd Embodiment, and A city and B city. It is a figure which shows the information memorize | stored in the area information storage part which concerns on 3rd Embodiment. It is an image figure which shows the positional relationship of six sectors of the wireless base station which concerns on the modification of 3rd Embodiment, and A city and B city. In 4th Embodiment, it is an image figure which shows the relationship between the area | region of A city and B city, and the radio | wireless area | region of a wireless base station, and the terminal device in a standby state in the said radio | wireless area | region. It is a figure which shows the structure of the terminal device which concerns on 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Message delivery system, 10 ... Terminal device, 10a ... Sorting part, 10b ... Display part, 20 ... Wireless base station, 20a ... Simultaneous delivery part, 100 ... Delivery apparatus, 110 ... Area reception part, 120 ... Message delivery request signal Transmission unit 200 ... Service control device 210 ... Area information storage unit 220 ... Message distribution request signal receiving unit 230 ... Distribution area analysis unit 240 ... Distribution area specifying unit 250 ... Message distribution unit 260 ... Area setting unit , L ... boundary line, S01 to S06 ... sector identification information, S101 to S107 ... step, 001 to 006 ... sector center position,

Claims (8)

A message delivery system comprising: a radio base station that manages a radio area; and a control device that delivers a message to a terminal device located in the radio area via the radio base station,
The controller is
A storage unit that associates and stores area identification information that identifies an area specified based on a representative position of the wireless area, and the wireless area;
A receiving unit for receiving the message and the region identification information for identifying the region to which the message is distributed;
Based on the received area identification information, a specifying unit that specifies the wireless area corresponding to the area identification information;
A message delivery system comprising: a delivery unit that delivers the message simultaneously to the terminal devices located in the identified wireless area. The radio area is a radio area of the whole radio base station,
The storage unit includes the region identification information for identifying the region including a larger number of the center positions of the sectors obtained by dividing the wireless region of the entire wireless base station and the positions of the wireless base stations, and the wireless base station. The message distribution system according to claim 1, wherein the message is stored in association with a radio area of the entire station. The radio area is a radio area of the whole radio base station,
The storage unit stores the area identification information for identifying the area including the center position of a sector obtained by dividing the radio area of the entire radio base station and the radio area of the entire radio base station in association with each other. The message delivery system according to claim 1. The radio area is a sector that divides the radio area of the entire radio base station,
The message delivery system according to claim 1, wherein the storage unit stores the area identification information for identifying the area including the center position of the sector in association with the sector. The radio area is a radio area of the whole radio base station,
The storage unit stores the area identification information for identifying the area including at least a part within a predetermined distance from the position of the radio base station and the radio area of the entire radio base station in association with each other. The message delivery system according to claim 1. The radio area is a sector that divides the radio area of the entire radio base station,
The storage unit stores the area identification information for identifying the area including at least a part within a predetermined distance from a center position of the sector and the sector in association with each other. The message delivery system according to 1. A control device that connects to a radio base station that manages a radio area and distributes a message to a terminal device located in the radio area via the radio base station,
A storage unit that associates and stores area identification information that identifies an area specified based on a representative position of the wireless area, and the wireless area;
A receiving unit for receiving the message and the region identification information for identifying the region to which the message is distributed;
Based on the received area identification information, a specifying unit that specifies the wireless area corresponding to the area identification information;
A control device comprising: a delivery unit that delivers the message simultaneously to the terminal devices located in the identified wireless area. A message delivery method in a message delivery system comprising: a radio base station that manages a radio area; and a control device that delivers a message to the terminal device located in the radio area via the radio base station,
A storage step in which the control device associates and stores area identification information for identifying an area specified based on a representative position of the radio area, and the radio area;
Receiving the message and the region identification information for identifying the region to which the message is distributed;
A specifying step of specifying the wireless area corresponding to the area identification information based on the received area identification information;
A message delivery method comprising: delivering the message simultaneously to the terminal devices located in the identified wireless area.

Images