JP5302487B2 - Electronic map data presentation device - Google Patents

Description

  The present invention relates to an information presentation technique based on electronic map data.

  In recent years, the use of map data digitized so as to be usable by computers (hereinafter referred to as “electronic map data”) has become widespread. The electronic map data is used for displaying a map on a so-called personal computer, a vehicle-mounted navigation system, providing a map via the Internet, and creating a map as a printed matter. In particular, in the navigation system, the usefulness of the electronic map data is high in that the destination can be easily set and the route to the destination can be easily searched. In addition to being provided in a form stored in a storage medium such as a CD-ROM, the electronic map data may be distributed via a network.

  Electronic map data can provide detailed data. For example, it is also possible to supply map data with a house frame for displaying the size and occupied area of a house, a house display, and the like for each house, such as a house map. It is also possible to include more detailed and personal information such as the household composition as well as the residence display.

  Such detailed information is very useful from a public interest point of view. For example, the occupied area of a house is useful for predicting the spread of fire in the event of a fire, and the number of members in each household can be used to examine whether the capacity of an evacuation facility is sufficient during a disaster. Information on the presence or absence of a care recipient in each household can be used for planning such as the number of nursing care vehicles and the setting of a circuit.

Problems to be solved by the invention

  However, when detailed information is provided in this way, there is a risk that it may be disadvantageous to the publisher depending on the content. There is also a risk of infringing on the privacy of the publisher. Conventionally, the amount of information stored in the electronic map data is limited with emphasis on such disadvantages. Therefore, even when detailed information such as disaster prevention and other public purposes can be effectively used, the advantages of the electronic map data cannot be fully utilized.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a technique for effectively utilizing electronic map data while avoiding unnecessary leakage of detailed information.

Means for solving the problems and their actions and effects

  In order to solve at least a part of the above problem, in the present invention, in an information presentation device that presents electronic map data, browsing conditions are set in advance in the electronic map data, and the presentation of information can be controlled based on this. Such an information presentation device is realized by a configuration including an element data storage unit, a browsing condition data storage unit, a request input unit, and an output unit. The element data storage unit stores each element data constituting the electronic map data and its attribute information. The browsing condition data storage unit stores browsing condition data defining presentation conditions for at least part of the element data and the attribute information.

  When presenting the electronic map data, the request input unit inputs a request for presenting the electronic map data. In response to this presentation request, the output unit outputs electronic map data including element data and attribute information. Here, the presentation of the element data and the attribute information is performed in a range where browsing is allowed based on the presentation request and browsing condition data.

  According to the information presentation device of the present invention, information presented to a viewer can be controlled based on preset browsing conditions. Therefore, it is possible to effectively utilize the information while suppressing leakage of element data and attribute information.

  In the present invention, when a plurality of attribute information items are set for each element data, the browsing condition data may be set for each element data unit or may be set for each item of attribute information. The former has an advantage that it is easy to set viewing conditions, and the latter has an advantage that fine control can be realized for presentation of attribute information.

  In order to achieve both ease of setting and fine control, browsing condition data may be set by the following method. The information presentation device includes a correspondence storage unit that stores correspondence between first browsing condition data set in element data units and second browsing condition data set in attribute information items. The browsing condition data storage unit stores the first browsing condition in element data units. The output unit can refer to the correspondence storage unit, translate the first viewing condition into the second viewing condition, and control the output of element data and attribute information in item units.

  In the information presentation apparatus of the present invention, the browsing condition data can be set in various ways, for example, it can be a human condition that restricts who can browse information. In this case, browsing of information can be permitted only to those who satisfy certain conditions. However, in the present invention, the presentation of element data and attribute information is a control target, and there is no limitation on the display of the map itself, which is different from what is performed for only a certain member. Of course, on the premise that the map display is performed only for a certain member, it is possible to take a mode of restricting who can browse the element data and attribute information based on the browsing condition data.

  As another aspect, the browsing condition data may be a usage condition that restricts the browsing purpose of information. For example, when the purpose is a public interest such as a disaster prevention plan, it is possible to apply control such as greatly permitting browsing of information, and restricting browsing of information when personally browsing.

  Regardless of whether the above-described human condition or usage condition is applied, the browsing condition data can be set in various formats. For example, the data for specifically specifying the person or purpose of browsing can be used as the browsing condition data. In addition, a person or purpose that can be viewed may be digitized as a request index with a certain correspondence, and this may be used as viewing condition data. In this case, the presentation request includes a viewable index set according to the caller or the purpose of the request. The output unit presents information only for those indicators whose browsing index exceeds the required index set as browsing condition data. By doing so, it can be relatively easily determined whether or not the viewing condition is satisfied.

  In the present invention, the browsing condition data may be changed after an instruction to change the browsing condition data is input and the issuer of the changing instruction authenticates that the browsing condition data has a change authority. The change authority is given, for example, to a person whose own information is posted as attribute information on the electronic map data (hereinafter referred to as a person to be posted). By doing so, the posted person can adjust the viewing conditions at his / her will. In particular, this configuration is highly useful when a mode in which a change instruction is input from a client computer connected to the information presentation apparatus via a network is employed.

  When the posting person can change the viewing condition, only the change that makes the presentation condition stricter than the previous condition may be allowed. By doing so, it is possible to relatively reduce the burden of authenticating the posted person. To allow a change that relaxes the presentation condition than the previous condition, the presentation condition may be relaxed by an operation by another person who does not have the change authority, and the posted person may be disadvantaged. The importance of identity authentication becomes very large.

  In the present invention, information defining browsing authority necessary for browsing can be used as browsing condition data. In this case, the output unit can specify the browsing authority of the issuer of the presentation request, extract the attribute information that can be browsed based on the browsing authority and the browsing condition data, and present it. The viewing authority of the issuer can be specified by storing information unique to the issuer included in the presentation request and the viewing authority in association with each other in advance. As the unique information, a so-called user ID, name, or the like can be used. According to this configuration, the viewing authority for each issuer can be managed on the information presentation device side, and information leakage due to malicious intent can be avoided.

  When the browsing authority is managed on the information presentation device side, the convenience can be improved by configuring each person to change the browsing authority. Accordingly, it is preferable that a browsing authority change instruction is input, and if the issuer of the change instruction has a browsing authority changing authority, the browsing authority is changed. Such a configuration is particularly useful when requesting presentation of information from a client connected to the information presentation apparatus via a network. In a configuration in which each person can change the viewing authority, only a change that reduces the viewing authority than the previous condition may be allowed in order to reduce the burden of personal authentication.

  The present invention may be configured as an information presentation method in addition to the configuration as the information presentation device described above. Moreover, you may comprise as a program which implement | achieves the function of an information presentation apparatus. It can also be configured as an electronic map database with browsing condition data. Furthermore, you may comprise as a recording medium which recorded these programs and an electronic map database. The recording medium includes a flexible disk, CD-ROM, magneto-optical disk, IC card, ROM cartridge, punch card, printed matter on which a code such as a barcode is printed, an internal storage device of a computer (memory such as RAM or ROM). ) And external storage devices can be used.

The embodiment of the present invention will be described by dividing it into the following items.
A. Electronic map presentation system:
B. Information presentation process:
C. Security level change processing:
D. Access level change processing:
E. effect:
F. Variations:

A. Electronic map presentation system:
FIG. 1 is an explanatory diagram showing a configuration of an electronic map presentation system as an embodiment. The electronic map presentation system includes an information providing apparatus 100 and a map database 200 that functions as a management apparatus. The information providing apparatus 100 and the map database 200 may be configured as an integrated apparatus, but in this embodiment, in order to allow access to the map database 200 by a larger number of information providing apparatuses 100, both are connected to a LAN (Local Area). Network). The electronic map data stored in the map database 200 is roughly divided into element data, attribute data, and browsing condition data. The contents of each data will be described later. The information providing apparatus 100 is connected to the Internet INT, and can present an electronic map in response to a request from an external client PC. Various connections such as a LAN may be used for connection between the information providing apparatus 100 and the client PC. Further, the information providing apparatus 100 and the client PC may be configured integrally.

  The functional blocks of the information providing apparatus 100 are shown in the figure. In the present embodiment, the information providing apparatus 100 is configured by a general-purpose computer having a network communication function, and each functional block shown in the figure is configured by software. However, the information providing apparatus 100 is configured by hardware using a dedicated circuit. It is also possible.

  The database management unit 130 reads data from the map database 200 and writes data to the map database 200.

The request input unit 150 inputs a request regarding map display or the like from the client PC via the Internet INT. The authentication unit 160 performs authentication such as authority given to the sender of the request. In order to perform this authentication, the authentication unit 160 has a database relating to map viewers. The content of the database which the authentication part 160 holds in the figure was illustrated. The following data is stored for each user specified by the user ID. “Access authority” is an index representing authority to access attribute data provided in the map database 200. In this embodiment, the access levels are represented by 1 to 3 access levels. “Change authority” indicates whether the user can change the access authority. “ Viewing condition change authority” indicates whether or not the user has the authority to change the viewing condition data included in the map database 200 when the user is a posted person. The “ browsing condition data” is a pointer indicating a storage destination of the browsing condition data to be changed when the user has the authority to change the browsing condition data. The authentication unit 160 specifies the authority of the request issuer based on this database, and passes the result to the request input unit 150.

The request input unit 150 delivers the presentation request together with the authentication result to the database management unit 130. When the database management unit 130 prepares data according to the request, the result is sent to the information presentation unit 1.
Pass to 40. At this time, the database management unit 130 extracts only data that satisfies browsing condition data described later. The information presentation unit 140 presents information to the client PC via the Internet INT.

  The command input unit 110 inputs a command from a keyboard or other input device provided in the information providing apparatus 100. The display control unit 120 displays information on the display or the like of the information providing apparatus 100. The database management unit 130 can change the map database 200 in accordance with a command from the command input unit 110, and can display the result on the display control unit 120.

  FIG. 2 is an explanatory diagram showing the configuration of the map database 200. Data stored in the map database 200 of the present embodiment is roughly divided into element data, attribute data, and browsing condition data. The element data is data for storing positions and shapes such as latitude and longitude for various buildings including roads and bridges. The element data is divided into various layers according to the type of building. In this embodiment, for convenience of explanation, it is assumed that the management is roughly divided into three: public facilities, business facilities, and private houses. Public facilities refer to buildings used for public purposes such as public roads such as national and prefectural roads, bridges, and government offices. A business facility is a building for conducting various businesses such as stores, supermarkets, and theaters. A private house is a residence where an individual resides, and includes a detached house, an apartment, a condominium, and a privately owned private road. However, these classifications are not strict, and may be appropriately associated with the contents of attribute data described later.

  The attribute data is data for specifying the type and name of each element data. The content of the attribute data may be common to all the element data, but in this example, in order to make it possible to set more specific and detailed attribute data, the content depends on the classification of public facilities, business facilities, and private houses. It was set. This content will be described later.

  The browsing condition data is data for controlling presentation of attribute data. The contents of the browsing condition data are illustrated below the figure. In this embodiment, as shown in the figure, the security level set in five stages A to E is used as the browsing condition data. The browsing condition data is set in element data units. For example, for element data for which the security level E is set, the attribute data is presented almost unconditionally.

  The browsing condition data is associated with browsing condition change permission / inhibition data. This is data defining whether or not the viewing conditions can be changed in units of each element data. In the present embodiment, it is allowed to change the viewing condition by an operation from the client PC, but the viewing condition data cannot be changed for the element data for which “No” is set. The database of the authentication unit 160 described above stipulates whether or not the browsing condition data can be changed in units of people, whereas the changeability data shown in FIG. 2 stipulates whether or not changes can be made in element data units. It is different in point. By stipulating whether or not the change can be made on both sides, it is possible to prevent the browsing condition from being changed due to fraud or error.

  Here, the contents of the attribute data in the present embodiment will be described in order. FIG. 3 is an explanatory diagram illustrating contents that can be included as attribute data for public facilities. Attribute data related to public facilities is roughly classified into facility display information, building related information, and usage related information. The facility display information is information used for display on a map, and includes facility display, address, manager and the like. The building related information is information indicating the characteristics of the building itself, and includes information such as type, date of building, building style, number of floors, or height. The usage related information is information about users who can use public facilities, and includes information such as usage fees, target users, and available hours.

  In each item of the attribute data, an access level (hereinafter referred to as a request level) requested at the time of browsing is set corresponding to the security level. For example, in order to view “facility display” for element data for which the security level “C” is set, the access level of the request level viewer is required to be “2” or higher.

  FIG. 4 is an explanatory diagram illustrating contents that can be included as attribute data for a business facility. Attribute data related to business facilities is roughly classified into facility display information, building related information, and tenant information. The facility display information and the building-related information are almost the same as in the case of public facilities. In the case of business facilities, a telephone number is included in the facility display information in consideration of business convenience. The building-related information includes the number of tenants. Each tenant information is information for identifying a business operator in a business facility. When there are many stores such as a supermarket, each store is provided. The tenant information includes the shop name, number of floors, location, type of industry, number of employees, business hours, and the like. Similarly, for business facilities, the correspondence between security levels and required levels is defined.

  FIG. 5 is an explanatory diagram illustrating contents that can be included as attribute data for a private house. Attribute data related to personal housing is roughly classified into housing display information, housing related information, and member information. The residence display information is information used for display on a map, and includes a residence display, an address, a building and floor number, a telephone number, and the like. The housing related information is information indicating the characteristics of the housing itself, and includes information such as type, date of construction, and architectural style. The member information is information about residents, and includes the number of residents, the name of the householder, the name of each member, the age structure, social authority, and the like. Social authority refers to information on special protection or treatment received in conducting social life, such as pensioners, infants, care recipients, persons with disabilities, and foreigners. Similarly, the correspondence between the security level and the required level is defined for private houses.

  3 to 5 are only examples of attribute data, and are not limited to these. Each element data may be provided with more detailed attribute data, or a part of the exemplified data may be omitted. Of course, these attribute data do not necessarily need to be acquired for all element data, and may be prepared within a range in which information is acquired.

  Also, setting of security level, access level, etc. is merely an example. Each level may be set more variously. In the present embodiment, the browsing conditions for each item are finally defined in two types, that is, the security level and the request level, but various methods can be used to set the browsing conditions. For example, the request level may be set in element data units. The request level may be set individually for each item of the attribute data without using the security level.

B. Information presentation process:
FIG. 6 is a flowchart of the information presentation process. This is a process for presenting a map in response to a request from the client PC.

  First, the information presentation system inputs a display request from the client PC (step S10). For example, a method for presenting a request input screen in the form of a Web page from the information presentation system to the client PC and inputting necessary information using this screen can be adopted. The display request includes information such as the user ID, the latitude indicating the representative point of the map to be displayed, the longitude, and the display scale.

  In response to this request, the information presentation system specifies the access level of the viewer by using the database of the authentication unit 160 (step S12). Next, information that can be presented based on the access level is extracted from the map database 200 (step S14). Specifically, information whose requester's access level is higher than the request level is extracted as presentable information. It is determined that information whose access level does not satisfy the required level cannot be presented.

  Including the information extracted in this way, the information presentation system outputs a map to the client PC (step S16), and the processing is completed.

FIG. 7 is an explanatory diagram showing the difference in display contents depending on the access level. The example of the map displayed on client PC was shown. Here, for convenience of explanation, it is assumed that viewing conditions for each individual house are set as follows.
・ Requirement level for presentation of residence indication = 2;
・ Requirement level for presenting attribute data of householders etc. = 3;

  In the upper part of the figure, the map display when the access level of the viewer is 3 is illustrated. “A” to “h” in the map mean display of residences of individual houses, that is, display of description contents of so-called nameplates. According to the above browsing conditions, in the case of the access level 3, display of a residence, display of a householder, etc. is allowed. Therefore, the map display shown above is obtained. Detailed information such as the head of the household is displayed in a pop-up window PU that appears by clicking on a house desired to be browsed.

In the center of the figure, a map display when the access level of the viewer is 2 is illustrated. According to the above browsing conditions, in the case of the access level 2 , the residence display is allowed. Display of head of household etc. is prohibited. Therefore, the map display shown in the center is obtained.

  In the lower part of the figure, the map display when the access level of the viewer is 1 is illustrated. According to the above browsing conditions, in the case of the access level 1, display of the residence, the display of the householder, etc. are both prohibited. Therefore, as shown below, a map display in which the residence display is omitted is obtained. Here, a certain viewing condition is assumed for all the personal houses. For example, when a personal house whose request level of the house display is 1 is included, the house display is performed for the house.

C. Security level change processing:
FIG. 8 is a flowchart of the security level change process. In the present embodiment, the information presentation system executes this process, so that the viewer can change the security level from the client PC.

  When this process is started, the information presentation system inputs a security level change request (step S20), and determines whether or not the issuer of the request has a change authority (step S22). This determination is performed by referring to “browsing condition change authority” provided in the authentication unit 160. In this embodiment, it is assumed that only the person whose information is posted in the electronic map data as attribute data is authorized to change.

  If it is determined that there is no change authority (step S22), the information presentation system displays a warning that the change of the security level is not permitted on the client PC and ends the process (step S27). If it is determined that there is a change authority (step S22), a list of security levels is displayed on the client PC (step S23), and a new level setting is input from the client PC (step S24). The list of security levels is a table shown in the lower part of FIG. At the same time, the correspondence relationship between the security level and the request level (FIGS. 3 to 5) may be presented.

  By presenting this table, it is possible to support the selection of the security level by the viewer. For example, if the viewer wishes to allow some information browsing such as a residence display to these contractors for convenience of delivery such as home delivery, the security level C shown in FIG. You can choose. When the information presentation is rejected also to these contractors, the level B or the level A may be selected.

  When a new security level (hereinafter referred to as a new level) is input, the information presentation system determines whether or not the new level is higher than a previously set level (hereinafter referred to as an old level). (Step S26) If the new level is less than or equal to the old level, an unchangeable warning is displayed and the process ends (Step S27). If the new level is higher than the old level, the security level is updated to the new level (step S28).

  In this way, in this embodiment, by allowing only a change that increases the security level, the security level is lowered due to fraud and the like, and information leakage is avoided. When authority authentication is sufficiently performed, the determination in step S26 may be omitted to allow a change that reduces the security level.

D. Access level change processing:
FIG. 9 is a flowchart of the access level change process. In this embodiment, the information presentation system executes this process, so that the viewer can change the access level from the client PC.

  When this process is started, the information presentation system inputs an access level change request (step S30), and determines whether or not the issuer of the request has change authority (step S32). This determination is made by referring to “change authority” provided in the authentication unit 160.

  If it is determined that there is no change authority (step S32), the information presentation system displays a warning to the effect that change of the access level is not permitted on the client PC, and ends the process (step S37). If it is determined that there is a change authority (step S32), a new level setting is input from the client PC (step S34).

  When a new access level (hereinafter referred to as a new level) is input, the information presentation system determines whether the new level is higher than a previously set level (hereinafter referred to as an old level). (Step S36) If the new level is greater than or equal to the old level, an unchangeable warning is displayed and the process is terminated (Step S37). If the new level is lower than the old level, the access level is updated to the new level (step S38).

  In this embodiment, by allowing only a change that lowers the access level, the access level is raised by fraud or the like, and browsing of other people's information is avoided. When authority authentication is sufficiently performed, the determination in step S36 may be omitted to allow a change to increase the access level.

E. effect:
According to the system of the present embodiment described above, presentation of attribute data can be controlled according to the viewer. As a result, unintentional leakage of detailed attribute data can be avoided, and the information can be effectively utilized with the approval of the recipient.

F. Variations:
In the Example, the case where presentation of attribute data was controlled according to the viewer was illustrated. The browsing condition can be set in various ways. For example, presentation of attribute data may be controlled according to the purpose of browsing. As an example, a type of purpose such as “disaster prevention plan”, “delivery”, and “none” may be input in a map display request, and presentation of attribute data may be controlled based on this purpose type. Limitations may be provided for the purpose types that can be selected by the viewer.

  In the embodiment, the case where the presentation of the attribute data is controlled according to the viewer is exemplified, but the present invention is not limited to this, and the presentation of the element data may be controlled. For example, privately owned private roads that are one of the elemental data may infringe on privacy, but are useful for public interest purposes such as disaster prevention. It may be taken.

  As mentioned above, although the various Example of this invention was described, it cannot be overemphasized that this invention is not limited to these Examples, and can take a various structure in the range which does not deviate from the meaning. For example, various features shown in the above-described embodiments may be appropriately omitted to configure the system.

  It is explanatory drawing which shows the structure of the electronic map presentation system as an Example.   It is explanatory drawing which shows the structure of the map database.   It is explanatory drawing which illustrates the content which can be included as attribute data about a public facility.   It is explanatory drawing which illustrates the content which can be included as attribute data about a business facility.   It is explanatory drawing which illustrates the content which can be included as attribute data about a private house.   It is a flowchart of an information presentation process.   It is explanatory drawing which shows the difference in the display content by an access level.   It is a flowchart of a security level change process.   It is a flowchart of an access level change process.

DESCRIPTION OF SYMBOLS 100 ... Information provision apparatus 110 ... Command input part 120 ... Display control part 130 ... Database management part 140 ... Information presentation part 150 ... Request issue part 150 ... Request input part 160 ... Authentication part 200 ... Map database

Claims (6)

An information presentation device for presenting electronic map data,
An element data storage unit for storing each element data constituting the electronic map data and its attribute information;
Is information that defines a viewing rights necessary for viewing, for at least a part of the attribute information and the element data, browsing condition data storage unit for storing viewing condition data defining a presentation condition,
A request input unit for inputting a request for presentation of electronic map data;
A browsing authority storage unit that stores information unique to the issuer of the presentation request and the browsing authority of the attribute information in association with each other;
Based on the presentation request, an authority specifying unit that specifies the browsing authority of the issuer, and a presentation information extraction unit that extracts viewable attribute information based on the browsing authority and the browsing condition data, An output unit for outputting electronic map data including the extracted attribute information and the element data;
A condition change instruction input unit for inputting an instruction to change the browsing condition data;
A condition authentication unit for authenticating whether or not the issuer of the change instruction is a publisher of the attribute information;
An information providing apparatus comprising: a condition changing unit that changes the browsing condition data in accordance with the change instruction when the issuer is authenticated as the publisher.
The information presentation apparatus according to claim 1 , wherein the condition changing unit performs only a change that makes a presentation condition stricter than a previous condition.
The information presentation apparatus according to claim 1, wherein the browsing condition data is a personal condition that limits a person who can browse the attribute information.
The information presentation apparatus according to claim 1, wherein the browsing condition data is a usage condition that limits a browsing purpose of the attribute information.
The information presentation device according to claim 1 ,
An authority change instruction input unit for inputting an instruction to change the browsing authority stored in the browsing authority storage unit;
An authority authenticating unit that authenticates whether the issuer of the change instruction has the authority to change the viewing authority;
An information presentation device comprising: an authority changing unit that changes the browsing authority in accordance with the change instruction when the authority has a change authority.
The information presentation device according to claim 5 ,
The said authority change part is an information presentation apparatus which performs only the change which reduces browsing authority rather than the former conditions.

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