JP6293533B2 - Map data providing system and method, computer program for providing map data, and recording medium recording the computer program - Google Patents

Description

  The present invention relates to a map data providing system and method.

In recent years, in conjunction with the spread of the Internet and mobile terminal devices, various technologies for providing information such as evacuation routes at the time of disaster have been proposed for mobile terminal devices such as smartphones.
As such a technique, Patent Document 1 discloses an evacuation route providing system including a route search server and a mobile terminal device, and the mobile terminal device regularly and regularly with respect to the route search server, A system is disclosed that makes a search request for an evacuation route between points registered in advance, stores the evacuation route received from the route search server based on the search request, and displays it during a disaster.
Reference should also be made to US Pat.

JP 2007-147340 A JP 2008-101970 A

  The inventors of the present invention have noticed the following points as a result of intensive studies to reduce the processing load of the CPU and the like while considering the convenience of the user with respect to the information providing technology at the time of disaster. In daily life, users have a lot of intuition and are likely to be conducting evacuation drills in preparation for disasters on a daily basis. is there. On the other hand, outside the daily life area, it is highly likely that the user is not familiar with the land, and evacuation in such places is not easy. Therefore, the present inventors, based on whether or not the current position of the user possessing the mobile terminal device is within the daily life area of the user, when based on the current position of the user It has been conceived that map data within a predetermined range is extracted and provided to the mobile terminal device.

The present invention has been made in view of the above-mentioned problems, and the first aspect is defined as follows. That is,
A map data providing system for providing map data from a server device to a mobile terminal device,
A map database for storing map data;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination unit that determines whether or not the specified terminal position is located in a daily life area of the mobile terminal device;
A first extraction unit that extracts map data including the terminal position from the map database when it is determined that the identified terminal position is located outside the daily life area;
A providing unit for providing the extracted map data to the mobile terminal device at a predetermined timing;
A map data providing system.

According to the map data providing system of the first aspect defined as described above, the position of the mobile terminal device possessed by the user is specified, and it is determined that the specified terminal position is out of the daily life area of the user. When it is done, the map data including the terminal position is extracted, and the extracted map data is provided to the mobile terminal device. With such a map data providing system, the user performs the above processing when the user is outside the daily life area, that is, when the user exists in a place that is not familiar with land insight or information required at the time of a disaster such as a travel destination or a business trip destination. Map data can be provided. By providing map data only in the above cases, the user's convenience can be maintained, while the above processing is not performed when the user is in the daily life area, so the processing load on the CPU and the like is reduced. can do.
Here, the daily life zone represents an area where the user has information necessary for land intuition or a disaster, and includes, for example, the vicinity of the user's home, the vicinity of the work place, and the vicinity of the school. As another example, an area where the user's staying time is long and the staying frequency is high may be the daily life zone. This is because, in such a region, evacuation drills and the like are regularly carried out in preparation for disasters, and there is a high possibility of having information necessary for disasters. As the former area, for example, an area registered in advance in the user's mobile terminal device can be used. Moreover, as the latter area | region, it can set automatically, for example by the positioning means (for example, GPS apparatus etc.) with which mobile terminal devices, such as a smart phone, were equipped.

The second aspect of the present invention is defined as follows. That is,
In the map data providing system defined in the first aspect, a safety area information storage unit that stores information on a safety area at the time of a disaster as safety area information;
A second extraction unit that extracts safety area information corresponding to the extracted map data based on the safety area information; and
The providing unit further provides the extracted safety area information to the mobile terminal device.
According to the map data providing system of the second aspect defined in this way, the safe area information corresponding to the map data can be provided to the user together with the map data around the terminal position of the user. By providing the safe area information, it becomes possible to support evacuation to a safe area for a user who is located outside the daily life area and has no intuition, and convenience for the user is improved.

The third aspect of the present invention is defined as follows. That is,
In the map data providing system defined in the first or second aspect, comprising a shelter information storage unit that stores the location of the shelter as shelter information,
The first extraction unit extracts the map data so as to include at least one of the shelters based on the shelter information,
The providing unit further provides the mobile terminal device with shelter information of a shelter included in the map data.
According to the map data providing system of the third aspect defined in this way, map data including at least one shelter is extracted and provided to the user as the map data around the terminal position of the user. By providing map data including an evacuation site in this way, the user can consider the evacuation site when evacuating, and the convenience of the user is improved.

The fourth aspect of the present invention is defined as follows. That is,
In the map data providing system defined in the third aspect, the first extraction unit is configured so that, based on the refuge information and the safety area information, the map data so that the safety area includes at least one refuge. To extract.
According to the map data providing system of the fourth aspect defined as described above, map data including at least one shelter in the safety area is extracted and provided to the user as the map data around the terminal position of the user. To do. By providing map data that includes evacuation centers in the safety area in this way, it is possible to support the user to evacuate to the evacuation area in the safety area, thus improving the safety and convenience of the user. Can be made.

The fifth aspect of the present invention is defined as follows. That is,
A map data providing system for providing map data from a server device to a mobile terminal device,
The mobile terminal device
A disaster occurrence information receiving unit for receiving disaster occurrence information indicating that a disaster has occurred;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination unit that determines whether or not the specified terminal position is located in a daily life area of the mobile terminal device;
When it is determined that the specified terminal position is located outside the daily life area, a request unit that requests the server device to acquire the map data;
When the disaster occurrence information is received, an instruction unit that instructs to stop the determination,
The server device
A map database for storing map data;
A first extraction unit that extracts map data including the terminal position from the map database when requested by the request unit;
A providing unit for providing the extracted map data to the mobile terminal device;
A map data providing system.

According to the map data providing system of the fifth aspect defined as described above, the mobile terminal device is based on its own terminal location, and whether or not the terminal location is within the daily life range of the mobile terminal device. When it is determined that it is out of the daily life area, the server device is requested to acquire map data around the terminal position. When the mobile terminal device receives the disaster occurrence information, the mobile terminal device stops the determination. For example, in the event of a disaster, the mobile terminal device may not be charged due to a power failure occurring in the area affected by the disaster. According to this system, with the reception of disaster occurrence information, the determination process is stopped, which saves power. Further, since the surrounding map data is provided to the user based on the terminal position before the occurrence of the disaster, the convenience of the user is not impaired.
The mobile terminal device may include an acquisition unit that acquires the map data from the server device, and a first notification unit that notifies the fact when the map data is acquired (sixth) aspect). In this system, the mobile terminal device performs the processing before the first notification, that is, the processing for specifying the terminal position and the acquisition request for the map data in the background processing. It is not necessary to perform an operation for this process, and the user is not bothered.
The mobile terminal device may include a second notification unit that notifies the presence of the acquired map data when the disaster occurrence information is received (seventh aspect).

The eighth aspect of the present invention is defined as follows. That is,
A map data providing method for providing map data from a server device to a mobile terminal device,
A storage step for storing the map data in a map database;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination step for determining whether or not the identified terminal position is located in a daily life area of the mobile terminal device; and
A first extraction step of extracting map data including the terminal position from the map database when the first extraction unit determines that the identified terminal position is located outside the daily life area;
A providing step in which the providing unit provides the extracted map data to the mobile terminal device at a predetermined timing;
A method for providing map data.
According to the invention of the eighth aspect defined as described above, the same effect as that of the first aspect can be obtained.

The ninth aspect of the present invention is defined as follows. That is,
In the method defined in the eighth aspect, a safe area information storage step of storing information related to a safe area at the time of a disaster as safe area information in the safe area information storage unit;
A second extraction unit comprising: a second extraction step of extracting safety area information corresponding to the extracted map data based on the safety area information;
The providing step further provides the extracted safety area information to the mobile terminal device.
According to the ninth aspect of the invention thus defined, the same effects as those of the second aspect can be achieved.

The tenth aspect of the present invention is defined as follows. That is,
In the method prescribed in the eighth or ninth aspect, comprising a shelter information storing step of storing the shelter position as shelter information in the shelter information storing unit,
The first extracting step extracts the map data so as to include at least one of the shelters based on the shelter information,
The providing step further provides evacuation shelter information included in the map data to the mobile terminal device.
According to the tenth aspect of the invention thus defined, the same effect as the third aspect can be obtained.

The eleventh aspect of the present invention is defined as follows. That is,
In the method defined in the tenth aspect, the first extraction step extracts the map data so that the safety area includes at least one of the shelters based on the shelter information and the safety area information. .
According to the eleventh aspect of the invention thus defined, the same effects as in the fourth aspect can be achieved.

The twelfth aspect of the present invention is defined as follows. That is,
A map data providing method for providing map data from a server device to a mobile terminal device,
A disaster occurrence information receiving step in which the reception unit receives disaster occurrence information indicating that a disaster has occurred;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination step for determining whether or not the identified terminal position is located in a daily life area of the mobile terminal device; and
When the request unit determines that the specified terminal position is located outside the daily life area, a requesting step for requesting the server device to acquire the map data;
When the instruction unit receives the disaster occurrence information, an instruction step for instructing to stop the determination;
A storage step for storing the map data in a map database;
A first extracting step for extracting map data including the terminal position from the map database when a request is made in the requesting step;
A providing step in which the providing unit provides the extracted map data to the mobile terminal device;
A method for providing map data.
According to the twelfth aspect of the invention thus defined, the same effects as in the fifth aspect can be achieved.

The thirteenth aspect of the present invention is defined as follows. That is,
In the method defined in the twelfth aspect, the acquisition unit acquires the map data from the server device;
When the first notification unit acquires the map data, it includes a first notification step of notifying that effect.
According to the thirteenth aspect of the invention thus defined, the same effects as in the sixth aspect are achieved.

The fourteenth aspect of the present invention is defined as follows. That is,
In the method defined in the twelfth or thirteenth aspect, the second notification unit includes a second notification step of notifying the presence of the acquired map data when the disaster occurrence information is received.
According to the fourteenth aspect of the invention thus defined, the same effects as in the seventh aspect can be achieved.

Furthermore, the fifteenth aspect of the present invention is defined as follows. That is,
A computer program for providing map data from a server device to a mobile terminal device, comprising:
Storage means for storing map data in a map database;
Terminal location specifying means for specifying the terminal location of the mobile terminal device;
Determining means for determining whether or not the identified terminal position is located within a daily life range of the mobile terminal device;
A first extracting means for extracting map data including the terminal position from the map database when it is determined that the specified terminal position is located outside the daily life area;
Providing means for providing the extracted map data to the mobile terminal device at a predetermined timing;
As a computer program.
According to the fifteenth aspect of the invention thus defined, the same effects as those of the first aspect can be achieved.

The sixteenth aspect of the present invention is defined as follows. That is,
A computer program defined in the fifteenth aspect, further comprising:
Safe area information storage means for storing information on the safe area at the time of a disaster as safe area information in the safe area information storage unit;
Based on the safety area information, function as second extraction means for extracting safety area information corresponding to the extracted map data,
The providing means further provides the extracted safety area information to the mobile terminal device.
According to the sixteenth aspect of the invention thus defined, the same effects as those of the second aspect can be achieved.

The seventeenth aspect of the present invention is defined as follows. That is,
In the computer program defined in the fifteenth or sixteenth aspect, the computer further comprises:
Function as a shelter information storage means that stores the shelter location in the shelter information storage section as shelter information,
The first extraction means extracts the map data so as to include at least one of the shelters based on the shelter information,
The providing means further provides the mobile terminal device with shelter information of a shelter included in the map data.
According to the seventeenth aspect of the invention thus defined, the same effects as in the third aspect can be achieved.

The eighteenth aspect of the present invention is defined as follows. That is,
In the computer program stipulated in the seventeenth aspect, the first extracting means extracts the map data based on the refuge information and the safety area information so that the safety area includes at least one refuge. To do.
According to the eighteenth aspect of the invention thus defined, the same effects as in the fourth aspect can be achieved.

The nineteenth aspect of the present invention is defined as follows. That is,
A computer program for providing map data from a server device to a mobile terminal device,
Disaster occurrence information receiving means for receiving disaster occurrence information indicating that a disaster has occurred;
Terminal location specifying means for specifying the terminal location of the mobile terminal device;
Determining means for determining whether or not the identified terminal position is located within a daily life range of the mobile terminal device;
Request means for requesting the server device to obtain the map data when it is determined that the specified terminal position is located outside the daily life area;
When receiving the disaster occurrence information, instruction means for instructing to stop the determination;
Storage means for storing map data in a map database;
First extraction means for extracting map data including the terminal position from the map database when there is a request from the request means;
Providing means for providing the extracted map data to the mobile terminal device;
As a computer program.
According to the nineteenth aspect of the invention thus defined, the same effects as in the fifth aspect are achieved.

The twentieth aspect of the present invention is defined as follows. That is,
In the computer program defined in the nineteenth aspect, the computer is further
Obtaining means for obtaining the map data from the server device;
When the map data is acquired, it is made to function as first notification means for notifying that effect.
According to the twentieth aspect of the invention thus defined, the same effects as in the sixth aspect are achieved.

The 21st aspect of this invention is prescribed | regulated as follows. That is,
In the computer program defined in the nineteenth or twentieth aspect, the computer further comprises:
When the disaster occurrence information is received, it functions as a second notification means for notifying the presence of the acquired map data.
According to the twenty-first aspect of the invention thus defined, the same effects as in the seventh aspect are achieved.

  A recording medium for recording the computer program defined in any one of the fifteenth to twenty-first aspects is defined as the twenty-second aspect.

FIG. 1 is a block diagram showing a configuration of a map data providing system 1 according to an embodiment of the present invention. FIG. 2 is a flowchart showing an example of the operation of the map data providing system 1 according to the embodiment of the present invention. FIG. 3 is a block diagram showing a configuration of a map data providing system 41 according to another embodiment of the present invention. FIG. 4 is a block diagram showing a configuration of a map data providing system 51 according to another embodiment of the present invention. FIG. 5 is a block diagram showing the configuration of the map data providing system 61 according to the embodiment of the present invention.

A map data providing system according to an embodiment of the present invention will be described.
FIG. 1 shows a schematic configuration of the map data providing system 1.
As shown in FIG. 1, the map data providing system 1 includes a first mobile terminal device 2, second to nth mobile terminal devices (M2 to Mn), and a server device 3. The body terminal device and the server device are wirelessly connected to each other via the network N.

The first mobile terminal device 2 is a communication terminal device that can be carried by a user. For example, a mobile phone, a PDA (Portable Digital Assistant), a portable game machine, a notebook PC, a PND (Portable Navigation Device), an in-vehicle navigation system. Examples thereof include an apparatus.
The first mobile terminal device 2 includes a terminal position specifying unit 21 and a terminal side communication unit 23.
The terminal location specifying unit 21 specifies the current location information of the mobile terminal device 2 using a GPS device or a gyro device. In addition, the current time can be specified.
The terminal-side communication unit 23 includes a transmission unit that transmits various types of information to the server device 3 and a reception unit that receives various types of information from the server device 3. The information transmitted by the terminal side communication unit 21 includes, for example, information on the location and time of the mobile terminal device specified by the terminal position specifying unit 21 and information on the daily life area of the mobile terminal device 2 by an input unit (not shown). In the case of input, the information and the like are listed. Moreover, as the information which the said terminal side communication part 23 receives, the information etc. which are provided from the provision part mentioned later, such as map data, are mentioned, for example.
Although the configuration of the first mobile terminal device M1 has been described, the other mobile terminal devices M2, ..., Mn can also have the same configuration as M1.

The server device 3 includes a communication unit 31, a map database 33, a determination unit 35, a first extraction unit 37, and a provision unit 39.
The server side communication part 31 is provided with the transmission part which transmits various information to the mobile terminal device M1-Mn, and the receiving part which receives various information from the mobile terminal device M1-Mn. Examples of the information transmitted by the server-side communication unit 31 include map data provided from the providing unit 39 described later. The information received by the server-side communication unit 31 includes, for example, the position and time of the mobile terminal device specified by the terminal location specifying unit 21 and the daily life area of the mobile terminal device 2 by an input unit (not shown). When information is input, the information etc. are mentioned.
Map data is stored in the map database 33. The map data includes information on road elements for defining map information such as links and nodes, information drawn on the map, and the like. The map information is stored, for example, as a mesh file formed by hierarchizing a plurality of mesh data with different scale sizes, such as a city map, a city map, or the like.

  The determination unit 35 determines whether or not the terminal position specified by the terminal position specifying unit 21 is located within the daily life area of the mobile terminal device 2. The determination as to whether or not the mobile phone is located within the daily life range can be performed at an arbitrary timing such as once per hour, or when the terminal position stays within a certain range for a certain time or more. On the other hand, the determination may not be performed when the vehicle is moving at a speed exceeding a predetermined speed, such as when the vehicle is moving by transportation. This is because the point that passes when moving is a passing point, not a staying point. In addition, when the transportation system is a public transportation system in particular, evacuation is performed in accordance with instructions from the operator of the public transportation system. Whether or not the travel is by public transportation can be specified by comparing the travel route of the mobile terminal device and the travel route of the public transport, for example. Here, the daily life sphere is an area manually input by the user via the input unit of the mobile terminal device 2 or the home, company, school of the user input via the input unit of the mobile terminal device 2 A region within a predetermined range based on the position of the mobile terminal device 2 can be a region that is specified based on the terminal position information obtained by the positioning means of the mobile terminal device 2 and / or has a high stay frequency. .

  The first extraction unit 37 extracts map data including the terminal position of the mobile terminal device from the map database 33 when the determination unit 35 determines that the specified terminal position is located outside the daily life area. . The extraction method is not particularly limited, but map data within a predetermined distance centered on the terminal position can be extracted. As another example, when the map data stored in the map database 33 is stored as a mesh file, the first extraction unit 37 is a mesh where the terminal position is located, or a periphery around the mesh The mesh may be extracted. Further, based on the moving speed of the mobile terminal device, a corresponding hierarchical mesh may be extracted. In this case, a rougher mesh can be extracted when the moving speed is equal to or higher than the predetermined threshold, and a more detailed mesh can be extracted when the moving speed such as walking is lower than the predetermined threshold.

  The providing unit 39 provides the mobile terminal device 2 with the map data extracted by the first extracting unit 37 at a predetermined timing. The providing unit 39 can provide map data via the communication unit 31. The timing for providing the map data may be any timing that does not become complicated for the user while maintaining user convenience. The timing can be set based on the moving speed of the mobile terminal device, for example. Specifically, when the moving speed is equal to or lower than a predetermined threshold, the provision frequency can be lowered (for example, once / hour), and when the moving speed exceeds the predetermined threshold, the provision frequency can be set high. As another example, the provision history may be referred to when there is no history of providing the map data of the same area to the mobile terminal device. In this case, it is preferable to provide updated map data if the map data is updated even if the map data is in an area with a provision history.

In this system 1, the server device 3 may include a shelter information storage unit (not shown).
In the evacuation center information storage unit, the location of the evacuation center is stored as refuge information. As such shelter information, shelter information designated in advance for each area by a local government or the like can be used. The evacuation center information storage unit may store other information related to the evacuation center. Other information includes, for example, information on shelter facilities such as the presence or absence of stocks of food, medicine, diapers and baby food, and the presence or absence of air conditioning.
In the server device 3 including the evacuation site information storage unit, the first extraction unit 37 further refers to the evacuation site information storage unit, and at least one evacuation site is included in the area represented by the map data. Thus, the map data can be extracted. When the server device 3 further includes a safe area information storage unit, which will be described later, the first extraction unit 37 refers to the shelter information and the safe area information, and includes at least one shelter in the safe area. The map data may be extracted so that is included. The providing unit 39 may provide the mobile terminal device 2 with the evacuation site information and the safety area information of the evacuation site located in the area represented by the map data together with the extracted map data. good.

An example of the operation of the map data providing system 1 shown in FIG. 1 will be described with reference to FIG.
First, in step 11, information related to the daily life area of the device 2 input by an input unit (not shown) provided in the mobile terminal device 2 is transmitted to the server device 3 via the communication unit 23. The server device 3 receives and stores the information related to the daily life area in step 11 (step 31).
In step 12, the terminal position specifying unit 21 specifies the terminal position of the mobile terminal device 2 and transmits it to the server device 3 via the communication unit 23. The server device 3 receives the terminal position in step 12 (step 32).

In step 33, the determination unit 35 determines whether or not the terminal position of M1 received in step 32 is within the daily life area of M1 received in step 31. As a result of the determination, when the terminal position of M1 is not located in the daily life area of M1 (step 33: No), the process proceeds to step 34.
In step 34, the first extraction unit 37 extracts map data within a predetermined distance centered on the terminal position from the map database 33 based on the terminal position of M1 received in step 32.
In step 35, the providing unit 39 provides the map data extracted in step 34 to the mobile terminal device 2. That is, the map data is transmitted via the communication unit 31. The mobile terminal device 2 receives the map data transmitted at step 35 (step 13).

FIG. 3 shows a map data providing system 41 according to another embodiment. 3, the same elements as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is partially omitted.
FIG. 3 shows a process for determining whether or not the mobile terminal device is located in the daily life area in the mobile terminal device, and information on the safety area corresponding to the map data together with the map data. Is a map data providing system 41 capable of providing That is, the system 41 includes a first mobile terminal device 42 and a server device 43 in place of the first mobile terminal device 2 and the server device 3 in the system 1 shown in FIG.

The first mobile terminal device 42 includes a terminal position specifying unit 21, a determination unit 421, and a communication unit 23.
The determining unit 421 determines whether or not the terminal position specified by the terminal position specifying unit 21 is located within the daily life area of the mobile terminal device 42. The determination can be performed by the same method as the determination unit 35.
In this example, when it is determined that the mobile terminal device 42 is not located in the daily life area based on the determination result of the determination unit 421, the communication unit 23 specifies the terminal specified by the terminal position specifying unit 21 to that effect. It transmits to the server apparatus 43 with a position.
The server device 43 includes a communication unit 31, a map database 33, a safe area information storage unit 431, a first extraction unit 432, a second extraction unit 433, and a provision unit 434.
The safe area information storage unit 431 stores information related to a safe area at the time of a disaster as safe area information. The said safe area information should just be the information regarding the area which does not suffer damage at the time of a disaster. Such safe area information may be stored according to the type and degree of disaster. As the safety area information, specifically, a hazard map obtained by predicting damage caused by a disaster and mapping the damaged area can be used. Examples of such hazard maps include tsunami hazard maps, flood hazard maps, inland water hazard maps, storm surge hazard maps, earth and sand disaster hazard maps, and volcanic hazard maps provided by the MLIT and local governments.

The first extraction unit 432 is map data including the terminal position of the mobile terminal device based on information indicating that the first mobile terminal device 42 is not located within the daily life area obtained via the communication unit 31. Are extracted from the map database 33. The extraction can be performed by the same method as the first extraction unit 37.
The second extraction unit 433 extracts the safe area information corresponding to the extracted map data from the safe area information storage unit 431 based on the first extraction unit 432 extracting the map data. The extraction of the safe area information can extract, for example, safe area information having position information corresponding to the position information of the extracted map data.
The providing unit 434 refers to the first extracting unit 432 and the second extracting unit 433, and provides the extracted map data and safe area information to the mobile terminal device 42, respectively. The provision can be performed in the same manner as the provision unit 39.

FIG. 4 shows a map data providing system 51 according to another embodiment. 4, the same elements as those in FIGS. 1 and 3 are denoted by the same reference numerals, and the description thereof is partially omitted.
FIG. 4 shows a map data providing system for instructing cancellation of determination processing as to whether or not the mobile terminal device is located in the daily life area when the mobile terminal device receives disaster information. 51. That is, the system 51 includes a first mobile terminal device 52 and a server device 53, respectively, instead of the first mobile terminal device 2 and the server device 3 in the system 1 shown in FIG.
The first mobile terminal device 52 includes a communication unit 521, a terminal location specifying unit 21, a determination unit 421, a request unit 525, and an instruction unit 527.
The communication unit 521 includes a disaster occurrence information receiving unit 523.

The disaster occurrence information receiving unit 523 receives disaster occurrence information indicating that a disaster has occurred via the communication network. It is preferable that the disaster occurrence information receiving unit 523 also receives information regarding the type and degree of disaster.
When the request unit 525 determines based on the determination result of the determination unit 421 that the terminal position specified by the terminal position specifying unit 21 is located outside the daily life area, the request unit 525 transmits the map data to the server device via the communication unit 521. Request acquisition.
The instruction unit 527 instructs the determination unit 421 to stop the determination process when the disaster occurrence information reception unit 523 receives the disaster occurrence information.
The server device 53 includes a communication unit 31, a map database 33, a first extraction unit 432, and a providing unit 531.
The providing unit 531 provides the map data extracted by the first extracting unit 432 via the communication unit 31.

FIG. 5 shows a mobile terminal device 61 according to the embodiment. In FIG. 5, the same elements as those in FIGS. 1, 3, and 4 are denoted by the same reference numerals, and description thereof is partially omitted.
FIG. 5 shows a map data providing system 61 that notifies the user only when map data is acquired from the server device, and can reduce the complexity of the user as compared with the other processing performed in the background process. The system 61 includes a first mobile terminal device 6620 and a server device 630.

The first mobile terminal device 620 includes a control unit 621, a memory unit 622, an output unit 623, an input unit 624, an interface unit 625, a communication unit 521, a terminal location specifying unit 21, a determination unit 421, a request unit 525, and an instruction unit. 527, an acquisition unit 626, and a first notification unit 627.
The terminal-side control unit 621 is a computer device that includes a CPU, a buffer memory, and other devices, and controls other elements constituting the first mobile terminal device 620.
A computer program is stored in the terminal-side memory unit 622, and this computer program is read into the terminal-side control unit 621, which is a computer device, and causes it to function. This computer program can be stored in a general-purpose medium such as an SD (registered trademark) memory card.
The output unit 623 includes a display as a display unit, and displays other information such as acquired map data. When safety area information and shelter information are acquired, these information are also displayed. The output unit 623 may include a voice transmission unit. The input unit 624 is used for inputting a user command, for example. Specifically, it is used for inputting information related to the user's daily life area. As the input unit 624, a mouse, a light pen, or a pointing device such as a touch panel that cooperates with display contents of a display, or a voice input device such as a keyboard or a microphone can be used.

The terminal-side interface unit 625 connects the first mobile terminal device 620 to a wireless network or the like.
The acquisition unit 626 acquires the map data from the server device via the communication unit 521. Information indicating that the map data has been acquired is sent to the first notification unit 627.
When the acquisition unit 626 acquires the map data, the first notification unit 627 notifies the user to that effect. The notification can be performed, for example, by being displayed as a pop-up image on the display screen of the user's mobile terminal device, or by sending it to an e-mail corresponding to the user's mobile terminal device.
In this system 61, the first mobile terminal device 620 may include a second notification unit (not shown).
When the disaster occurrence information receiving unit 523 receives the disaster occurrence information, the second notification unit notifies the presence of already acquired map data. The notification can be performed by a method similar to that of the first notification unit 627. The user can recognize the presence of the map data by the notification, and can select whether or not to access the map data as necessary.

The server device 630 includes a control unit 631, a memory unit 632, an interface unit 633, a communication unit 31, a map database 33, a first extraction unit 432, and a providing unit 532.
The server-side control unit 631 is a computer device that includes a CPU, a buffer memory, and other devices, and controls other elements constituting the server device 630.
A computer program is stored in the server-side memory unit 632, and this computer program is read into the server-side control unit 631 that is a computer device to make it function. This computer program can be stored in a general-purpose medium such as a DVD.
The server-side interface unit 633 connects the server device 630 to a wireless network or the like.

  Although the embodiments and examples of the present invention have been described above, two or more of the embodiments (examples) may be combined and implemented. Alternatively, one of these embodiments (examples) may be partially implemented. Furthermore, among these, two or more embodiments (examples) may be partially combined.

  The present invention is not limited to the description of the embodiments and examples of the invention described above. Various modifications may be included in the present invention as long as those skilled in the art can easily conceive without departing from the description of the scope of claims.

1 41 51 61 Map data providing system 2 42 52 Mobile terminal device 3 43 53 Server device 21 Terminal position specifying unit 33 Map database (map DB)
35 421 determination unit 37 432 433 extraction unit 39 434 531 provision unit 431 safety area information storage unit 523 disaster occurrence information reception unit 525 request unit 527 instruction unit 626 acquisition unit 627 notification unit

Claims (7)

A map data providing system for providing map data from a server device to a mobile terminal device,
The mobile terminal device
A disaster occurrence information receiving unit for receiving disaster occurrence information indicating that a disaster has occurred;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination unit that determines whether or not the specified terminal position is located in a daily life area of the mobile terminal device;
When it is determined that the specified terminal position is located outside the daily life area, a request unit that requests the server device to acquire the map data;
When receiving the disaster occurrence information, an instruction unit that instructs to stop the determination;
An acquisition unit for acquiring the map data from the server device;
A second notification unit for notifying the presence of the acquired map data when the disaster occurrence information is received,
The server device
A map database for storing map data;
A first extraction unit that extracts map data including the terminal position from the map database when requested by the request unit;
A providing unit for providing the extracted map data to the mobile terminal device;
A map data providing system. The mobile terminal device
A first notification unit for notifying that when the map data is acquired;
The map data providing system according to claim 1, comprising: A map data providing method for providing map data from a server device to a mobile terminal device,
A disaster occurrence information receiving step in which the reception unit receives disaster occurrence information indicating that a disaster has occurred;
A terminal position specifying unit for specifying a terminal position of the mobile terminal device;
A determination step for determining whether or not the identified terminal position is located in a daily life area of the mobile terminal device; and
When the request unit determines that the specified terminal position is located outside the daily life area, a requesting step for requesting the server device to acquire the map data;
When the instruction unit receives the disaster occurrence information, an instruction step for instructing to stop the determination;
An acquisition step in which the acquisition unit acquires the map data from the server device;
A second notification step for notifying the presence of the acquired map data when the second notification unit receives the disaster occurrence information;
A storage step for storing the map data in a map database;
A first extracting step for extracting map data including the terminal position from the map database when a request is made in the requesting step;
A providing step in which the providing unit provides the extracted map data to the mobile terminal device;
A method for providing map data. When the first notification unit acquires the map data, a first notification step of notifying that effect;
The map data providing method according to claim 3, further comprising: A computer program for providing map data from a server device to a mobile terminal device, comprising:
Disaster occurrence information receiving means for receiving disaster occurrence information indicating that a disaster has occurred;
Terminal location specifying means for specifying the terminal location of the mobile terminal device;
Determining means for determining whether or not the identified terminal position is located within a daily life range of the mobile terminal device;
Request means for requesting the server device to obtain the map data when it is determined that the specified terminal position is located outside the daily life area;
When receiving the disaster occurrence information, instruction means for instructing to stop the determination;
Obtaining means for obtaining the map data from the server device;
A second notification means for notifying the presence of the acquired map data when the disaster occurrence information is received;
Storage means for storing map data in a map database;
First extraction means for extracting map data including the terminal position from the map database when there is a request from the request means;
Providing means for providing the extracted map data to the mobile terminal device;
As a computer program. Said computer further
A first notification means for notifying when the map data is acquired;
The computer program according to claim 5, which functions as:   A recording medium for recording the computer program according to claim 5.

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