JP2019164350A - Survey type navigation system - Google Patents

Abstract

To combine a natural coordinate system of latitude and longitude with a social coordinate system of house numbers of residences (including land lot number indications in areas where no house number system is implemented) to enable a user to freely use the social coordinate system in relation to a present position identified by GPS.SOLUTION: In a navigation system that displays map data corresponding to a user's present position, address lot numbers are displayed for buildings on the map data. The map data are used for displaying topography, a map, and buildings over coordinates indexed by latitude and longitude with charts, characters, and diagrams. In the navigation system, a displayable information generation part displays the map data on a display unit 13a corresponding to the present position acquired by a present position acquiring unit for acquiring the present position and displays an address lot number corresponding to the coordinate positions of the buildings.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a survey (view) type navigation system such as a car navigation system and a walk navigation system.

  Conventional systems rely solely on the latitude and longitude natural coordinate system as a coordinate system for knowing location information. Therefore, once the target location is specified by an address that can be understood by the user, Geographical guidance is provided to the place to be performed by route display, voice, or the like (for example, Patent Document 1). This is because the latitude and longitude are suitable for the computer to know the location information, but humans cannot directly understand the location information. For example, the location of the “equator” cannot be confirmed with red color that can be perceived by humans, and other latitude and longitude lines cannot be used directly by humans as location information in the local geographic space. is there. For this reason, in the conventional system, the latitude and longitude of the location information of the destination is linked with GPS, and the guidance to the destination is displayed by displaying the route to the destination on a map once. Was essential.

  The system is like reaching the destination in the darkness of the latitude and longitude of the geospace, so to speak, depending on the rope of the guide, and the available location information is based on the two points of the current location and the destination. The result is a “tunnel-type” navigation system because it inevitably takes a one-dimensional form.

  The conventional navigation system is a very convenient system when the destination is known in advance and “if only one destination is found at a time is sufficient”.

(Problems with conventional navigation systems)
However, the actual and potential demand for navigation systems in recent years is sufficient, especially after the Great East Japan Earthquake, as long as the route to a predetermined destination is known for disaster prevention, tourism, and various aspects of national life. Demand that is not enough to say is becoming prominent.

  This is because, in disaster prevention and tourism “town walks”, not only the goal, but also the process itself is not only informationally important, but also the geography that is potentially required in the first place. This is because the spatial information itself is not limited to a preset target or known information.

  For example, in terms of disaster prevention, the necessary information includes potential targets whose discoveries and values are heuristically known for the first time in the field. It can be easily guessed from the artificial character.

"Topography and elevation near home and school, evacuation site, evacuation route, sackway alley, buildings with more than 3 floors, buildings / block fences / vending machines that are at risk of collapse, roads that are likely to be submerged, falling into a ditch when flooded Easy location, fire whirl area, other risks and evacuation information. "
These features include not only information that citizens themselves can find for the first time by exploring the local area with their feet, but also disaster prevention and evacuation for elderly people, children, vulnerable people, pregnant women, foreigners, etc. It also contains important information for action.

  In addition, administrative disaster prevention information is not always well known to people in the area, as well as to transferees and migrants.

  Moreover, in terms of tourism, tourists can discover unexpected tourist spots and cultural assets while strolling through strange lands, or unexpected encounters with people and the region can be considered the best part of tourism. In particular, Japan's “safety” is a precious tourism resource not found in other countries, so the navigation system that enables “walking sightseeing” is refraining from hosting the Tokyo Olympics. Therefore, it is urgently required to realize this after building a tourism power.

  By the way, the conventional system has the following big problem with respect to the above necessity. In other words, the conventional system not only does the navigation function useful if the destination is not known, but also displays the current location with the GPS function and tries to “walk around” or “walk” with the display as a clue. Since walking requires a slow speed that is not comparable to that of a vehicle and needs to follow complicated complicated paths, it is not in a situation that can cope with this at all due to the problem of GPS accuracy.

  In addition, it has been pointed out that the difficulty in understanding the geography of urban areas in Japan has become a major obstacle to tourism.

  For example, according to the Ministry of Land, Infrastructure, Transport and Tourism's “Guidance on the Street Name” Based on Social Experiments (October 2008), which was started in FY2006, the following is reported.

“1. What is“ Guide by street name ”? In Japan, the method of displaying residences is generally based on blocks (blocks) attached to areas partitioned by roads, railways, rivers, etc. (block method). However, there are some voices that this method is not necessarily suitable in terms of ease of identifying destinations for visitors unfamiliar with the area, although it plays a major role as a housing indication.

  On the other hand, the “road system”, which is generally used for displaying residences in Europe and the United States, is based on the street and displays the location by the street name and the number assigned to the roadside facility. However, it is easy to identify the destination.

With this as a background, “Guide by street name” creates a rule that can identify the destination well using a street name and a number indicating the approximate location, and displays these on the road, This is an effort to provide easy-to-understand route guidance in sightseeing spots and central city areas. "
Therefore, the conventional navigation system displays public facilities and well-known buildings on a map to deal with the urban structural problem of incomprehensible geography such as urban areas in Japan. Displaying the number is an auxiliary clue to locating, but it is far from a radical solution. Despite the need to constantly and accurately know the current location in complex road conditions, both in terms of efficiency and psychological security, the conventional navigation system is famous for walking around town. Even if the location of a building, etc. is displayed on a map and gives a rough bird's-eye view of the relationship with the current location, the above structural problems and GPS error problems combine, and the location at the user's walking level This is because it is not tied to securing the guidance. Therefore, you can walk around the area and walk around the area without getting lost, even if you use only the current location as a clue, or a clue to display a famous building, etc. Access was extremely difficult and was far from practical. Another problem is that foreign tourists cannot read names such as famous buildings written in Japanese or Kanji. And as for the map display of the block numbers, just as the above “Social Experiments with Street Names” tells, “For visitors unfamiliar with the area” is actually a clue for specifying the destination. Not right.

  In this way, the conventional navigation system uses a latitude and longitude that cannot be understood in the field as the only coordinate system in practice, and it also has a structural handicap that makes it difficult to understand the Japanese geospatial space itself. As a navigation system for pedestrians, it has a big problem of GPS error.

JP 2002-206943 A

  As described above, the present invention is to solve the triple problem of the conventional navigation system. As a result, not only location information limited to route searches to known destinations, but also disaster management / risk information and tourism resources that are manifest and potentially distributed in a wide variety of areas can be freely and efficiently used. It is to provide location information that can be understood by humans so that it can be viewed from the current point wherever you go so that it can be searched systematically and systematically. As a result, the search for users is greatly expanded in their behavioral abilities and freedom, and geographical literacy, disaster prevention literacy, tourism literacy, etc. are improved.

  In order to solve the above problems, a survey (view) type navigation system of the present invention is characterized in that, in a navigation system for displaying map data corresponding to a current position, an address address is displayed on a building on the map data. To do. That is, the present invention is characterized by combining a natural coordinate system of latitude and longitude and a social coordinate system of a house number (including a lot number display in an unimplemented area) and a current position specified by GPS. In relations, users should be able to use the social coordinate system freely.

  As a result, as in the conventional system, the effectiveness of the search action is not limited to “unidirectionality” such as the “knownness” of the destination and the route setting to the destination. With a comprehensive address and clues, it is possible to "discover" and "360-degree omnidirectional" with a spacious view. This means that the search capability in the local geographic space, its action radius, and the degree of freedom are greatly expanded and greatly improved.

  As a result, the local location of evacuation sites, elevations, danger information, tourist spots, events, etc., can be found on the spot in an orderly and concurrent manner, even if it is not known as known information or in multiple cases. It becomes possible. As before, you won't get lost or give up access before 1 / 10th of the required achievement due to the feeling of tiredness that you won't get lost in the middle of your work. .

  In this way, the tremendous efficiency of search behavior and the sense of accomplishment that rewards the effort bring the user closer to the geographic space of the region and the “joy of strolling” using the navigation system. . In addition, the large degree of freedom of action is also important for the elderly, the disabled, children, pregnant women, etc. in order to find necessary information and to encounter unexpected “discovery”. It brings about a physical space.

  In addition, the convenience described above is expected to make the following major contributions to the national issue of “disaster reduction”. In other words, because of the convenience of the panoramic navigation system, knowledge of evacuation behavior and evacuation patterns such as local altitude, evacuation routes, evacuation sites, etc., are also used as a sightseeing stroll. Imprinted on. As a result, local disaster prevention and risk information, as well as lifelong learning and sightseeing around the local history and historic sites, will form a map image in your head, making it possible to reflect evacuation behavior in an emergency. It helps to form an evacuation literacy (= evacuation knowledge and ability to survive the earthquake).

  Furthermore, it is a navigation system that can be easily used by immigrants, students, and foreigners who are not familiar with the land, such as the building address display, where location information is written in numbers that are universally understood by children.

  In the conventional navigation system, for example, when there are multiple alleys at intervals of 10 meters, it is impossible to detect which alleys originally entered because the GPS function is within the error range. Since it can be easily confirmed by the address display of a vending machine, it does not get lost or deviate from the target direction.

  When moving by walking, with conventional navigation systems, it is unclear which direction you are traveling, especially at the junction of buildings such as the crossroads, and you can make a lot of loss, such as noticing mistakes only after a few dozen meters. However, in this system, the direction can be easily determined by the building address (also displayed on the vending machine), etc., so it is also effective in preventing crossing.

  In this navigation system, it is not always necessary to display the address number in every building. For example, it is displayed mainly on buildings such as intersections and along roads, or thinned out in densely populated areas. For example, the omission may be performed within a range necessary for position confirmation.

  Furthermore, this system can safely guide to an evacuation site or an evacuation route by a function as a house map even when the GPS function cannot be used at the time of a disaster. It should be noted that when an emergency alert is received, a map centered on the current location at that time may be automatically displayed regardless of whether or not the navigation system is used.

  In addition, in this navigation system, the arrangement of features, buildings, etc. in the expanse of the ground surface can be visually judged based on the building number displayed on the map, so that the analog phase relationship between them can be visually determined (the machine is far from reaching ) It is possible to extract the human figure processing ability and create efficiency that is not comparable to conventional navigation systems in disaster prevention learning and walk-through access and use of tourist information.

  In the above invention, the map data is obtained by displaying the terrain, the map, and the building with coordinates, characters, and figures on the coordinates indicated by the latitude and longitude, and the navigation system obtains the current position. It is preferable to include an acquisition unit and a display information generation unit that displays map data in association with the current position acquired by the current position acquisition unit and displays an address number in association with the coordinate position of the building. In this case, the latitude / longitude natural coordinate system is combined with the social coordinate system of the house's house number (including the house number display in the area where the house is not displayed), and is used in relation to the current location specified by GPS. One can use the social coordinate system freely.

  Moreover, in the said invention, it is preferable to have further the additional information addition part which displays the additional information relevant to an address address on the position corresponding to the coordinate of a building so that it may overlap with map data. In this case, additional information is displayed superimposed on the map data, so that additional information that is clearly and potentially distributed over a wide variety of areas should be provided so that it can be viewed from the current location wherever you go. Can do. Furthermore, in the above invention, the additional information is preferably disaster prevention information or tourism information associated with an address. In this case, it is possible to freely, efficiently, and systematically search for disaster prevention / risk information and tourism resources that are clearly and potentially distributed in a wide variety of areas.

  In the above invention, the Internet is searched using the address address as a keyword, an information search unit that acquires Web information related to the address address as additional information, and a predetermined character string is extracted from the Web information acquired by the information search unit And an information classification unit that determines the attribute of the Web information from the appearance frequency of the extracted character string, and classifies and stores the Web information as additional information in association with the extracted attribute and the address address. Is preferred. In this case, since the Web information is acquired as the additional information, it is possible to extract more various types of additional information displayed on the map and notify the user. In this case, in the present invention, a predetermined character string is extracted from the Web information, the attribute of the Web information is determined from the appearance frequency of the extracted character string, and the Web information is associated with the extracted attribute and the address address. Since it is classified and stored as additional information, only information that the user wants to know can be displayed on the map data from among a lot of information, and convenience can be improved.

  Further, in the above invention, on the map displayed by the display information generation unit, an input interface for acquiring a user operation for selecting an address and a coordinate associated with the address and address selected by the input interface are stored in a map data storage unit It is preferable to further include a current position correction unit that requests the current position acquisition unit to correct the current position and executes correction of the displayed map data based on the acquired coordinates. .

  In this case, for example, even if an error occurs in positioning due to the positioning accuracy of the GPS receiver or the influence of the environment in which positioning is performed, accurate position information can be acquired by an operation from the user. Therefore, an error in position information acquired from a satellite can be eliminated, and correction information for the error can be used to improve the accuracy of subsequent positioning calculation. In particular, in the present invention, the map data storage unit stores the coordinates associated with the address address, and corrects the current position based on the selected address address. Can be done. Further, in the present invention, since the address address is displayed on the map displayed by the display information generation unit and the displayed address address can be selected, for the user, the location where the user is present and the map on the map are displayed. The difference from the position can be recognized immediately, and the correction work can be performed intuitively.

  In the conventional system, in addition to the GPS error range, there is almost no clue to the location verification with the site, so it was not easy to specify the exact location on the map and on the site. The correct location can be easily identified by checking the building address displayed at the location. The GPS current location identification function is rather limited to macro macro location determination, and individual walking selections such as course determination at branching points are based on on-site verification of building addresses. Realization is possible.

  In the conventional system, when there are multiple delivery locations in one area, it is necessary to enter the address of the delivery destination one by one, but this system makes use of human's excellent analog processing capability, By visually confirming the building address on the map, the delivery destination can be easily specified, the approximate direction from the current location, the shortest route, etc. can be determined.

It is a screen structure of the user terminal 1 used with the survey (view) type | mold navigation system which concerns on embodiment. It is a conceptual diagram which shows the whole structure of the survey (view) type | mold navigation system which concerns on embodiment. It is a block diagram which shows the internal structure of the management server which concerns on embodiment. It is a block diagram which shows the internal structure of the user terminal which concerns on embodiment. It is a block diagram which shows the internal structure of the additional information addition part which concerns on embodiment. It is explanatory drawing which shows the additional information selection screen displayed on the display part which concerns on embodiment. (A) And (b) is explanatory drawing which shows the display form of the map data which concerns on embodiment. It is a flowchart which shows the map data creation process in the survey (view) type navigation method which concerns on embodiment. It is a flowchart which shows the map data display process in the survey (view) type | mold navigation method which concerns on embodiment. (A) And (b) is explanatory drawing which shows the function which corrects the present position which concerns on embodiment. It is a block diagram which shows the basic internal structure of the user terminal which concerns on embodiment.

  Embodiments of a survey (view) navigation system according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a screen configuration of a user terminal 1 used in a survey (view) navigation system according to the present embodiment. As shown in FIG. 1, the user terminal 1 includes a navigation system that displays map data corresponding to the current position, and can display an address number on a building on the map data on the display 13a.

  This map data is a map, character, and graphic representation of terrain, maps, and buildings on the coordinates indicated by latitude and longitude, and the map is lined with roads along the roads. A building display outline (polygon) for displaying a building and an address number 192 are displayed in the building display outline. That is, in this map data, a natural coordinate system of latitude and longitude is combined with a social coordinate system of a house number (including a house number display in a region where no house display is performed).

  Further, on the map data, it is possible to display additional information 191 such as disaster prevention information or sightseeing information associated with the address number, Web information related to the address number searched on the Internet, and the like. This additional information is various information such as disaster prevention / risk information and tourism information that are manifestly and potentially distributed in a wide variety of areas. In the map data, this additional information 191 is superimposed on the map data and displayed at a position corresponding to the coordinates of the building.

  In addition, the administrative divisions of municipalities are displayed on this map data, and the official names of roads, shops, and tourist spots are displayed at some road names and predetermined locations, and at major intersections. The name is displayed. A symbol representing a post office, a symbol representing a shrine, a symbol representing a temple, and the like may be displayed on the map.

(Overall configuration of survey (view) navigation system)
A survey (view) type navigation system for displaying the map data described above will be described. FIG. 2 is a conceptual diagram showing the overall configuration of a survey (view) navigation system. As shown in FIG. 2, the survey (view) type navigation system according to the present embodiment is a system that displays map data corresponding to the current position, and is a management server 2 that manages the system on a communication network 5. , Wireless base station 4, various web servers 6 (6 a and 6 b) that distribute various web data, user terminal 1 capable of wireless communication through wireless base station 4 or communication satellite 3 (car navigation device 1 a that can be mounted in a car) Is included).

  The communication network 5 includes a wireless communication network, and various communication lines (telephone lines, ISDN lines, ADSL lines, public lines such as optical lines, private lines, wireless communication networks) are mutually connected using the communication protocol TCP / IP. The communication network 5 includes a LAN such as an intranet (company network) or a home network based on 10BASE-T or 100BASE-TX.

  The wireless base station 4 is a device that is connected to the communication network 5 through a relay device or the like, establishes a wireless communication connection with the user terminal 1, and provides a call or data communication by the user terminal 1. The relay device is a node device such as a modem, a terminal adapter, or a gateway device for connecting to the communication network 5, performs communication path selection and mutual conversion of data (signals), and the wireless base station 4 and the communication network Relay processing with 5 is performed. This relay device includes functions of a Wi-Fi (registered trademark) router and an access point device, and performs wireless communication with the user terminal 1. The satellite 3 is a position information satellite that orbits in a predetermined orbit over the earth, and transmits a navigation message superimposed on a 1.57542 GHz radio wave (L1 wave) to the ground.

  The management server 2 is a server device that is arranged on the communication network 5 and manages and controls the entire system such as user management and data collection management. In addition, the management server 2 includes a Web server, and a server computer that transmits information such as an HTML (HyperText Markup Language) file, an image file, or a music file in a document system such as WWW (World Wide Web) or the like. It is software having a function, stores information such as HTML documents and images, and distributes content (Web page) in response to a request from an application such as a Web browser executed on the user terminal 1. 1 is distributed.

  The user terminal 1 is a terminal possessed by each user, and is a mobile phone, a smart phone, or a car navigation device having an arithmetic processing function by a CPU and a wireless communication function, and wirelessly with a relay point such as a general base station. Communicate and receive communication services such as calls and data communications while moving. Examples of the communication method of the cellular phone include an FDMA method, a TDMA method, a CDMA method, a W-CDMA, a PHS (Personal Handyphone System) method, and the like. In addition, as a wireless interface different from the above-described communication method, a function corresponding to a communication method based on transmission / reception of IP packets conforming to a wireless LAN standard or the like is also provided. Further, the user terminal 1 is equipped with functions such as a digital camera function, an application software execution function, and a GPS function, and also functions as a personal digital assistant (PDA).

  The Web server 6 (6a, 6b) is a server computer that transmits information such as an HTML file, an image file, or a music file in a document system such as WWW (World Wide Web) or software having the function. Information such as documents and images is stored in the databases 61a and 61b, and the information is transmitted through an IP network such as the Internet 5 in response to a request from client software such as a Web browser. The web server 6 includes a social network server that individually sets mutual access restrictions between users and shares contents between users based on the access restrictions. On the user terminal 1, the SNS Various information such as tweets and comments posted on the system can be displayed on the screen.

(Internal structure of each device)
Next, the internal structure of each device constituting the system described above will be described. FIG. 2 is a block diagram illustrating an internal configuration of the user terminal 1 according to the present embodiment, and FIG. 3 is a block diagram illustrating an internal configuration of the management server 2 according to the present embodiment. The “module” used in the description refers to a functional unit for achieving a predetermined operation, which is configured by hardware such as an apparatus or device, software having the function, or a combination thereof. Show.

(1) Management Server Next, the internal configuration of the management server 2 will be described. The management server 2 can be composed of a plurality of server groups such as a Web server and a database server in addition to a single server device. In this embodiment, as shown in FIG. 3, a communication interface 201 is provided as a functional module for communication processing. The communication interface 201 is a communication interface that transmits and receives data to and from the user terminal 1 and each Web server 6 through the communication network 5.

  The management server 2 has a map data storage unit 203 as a module for storing map data to be displayed on the user terminal 1. The map data storage unit 203 is a storage device that stores data of an electronic house map with an address. The stored map data includes coordinate data including latitude and longitude, and vector map data (polygon data) corresponding to the coordinate data. ) And address data (address address) corresponding to the coordinate data are recorded in association with each other. As a result, the map data displayed on the screen displays the topography, the map, and the building in the form of lines, characters, and figures on the coordinates indicated by the latitude and longitude, and the address number 192 is displayed on the building. Has been. Such map data can also be generated on the management server 2. In this case, a map figure is created using an original image, an image scanner, a vector data conversion device, a polygon (polygonal enclosure figure) conversion device, and a computer, and the address / address data and a part of the name (text data) are created. ) Is added to the position corresponding to the coordinates on the map by manual input, or if the address data or some name (text data) contains coordinate data in advance, Link to map data based on coordinate data. At this time, the address number displayed on the map is appropriately corrected so as to be within the outline of the building.

  The management server 2 also has a user-provided information storage unit 202 as a module for acquiring and storing information provided from each user. The user provided information storage unit 202 is a storage device that acquires various types of information transmitted from the user terminal 1 as provided information and stores the information. The provided information includes, for example, various information such as information on disaster prevention and tourism. Here, information on disaster prevention includes topography and altitude near home and school, evacuation site, evacuation route, bukuro alley, buildings with more than 3 stories, buildings / block fences / vending machines that are at risk of collapse, and easy to submerge This includes roads, places that easily fall into the ditch when flooded, and areas where there is a risk of fire whirlwind.

  Information on tourism includes information on tourist spots and cultural assets such as business hours of tourist spots and cultural assets, and congestion status for each time zone, as well as stores around the tourist spots and cultural assets (food and drinks) Stores, souvenir shops, etc.) including business hours, evaluations, and congestion. Furthermore, the information regarding the SNS system includes, for example, evaluation of restaurants and guest houses, recommended products, and the like. To these pieces of information, an address address or coordinates are added, and a user ID that identifies the poster is added.

  For example, if the posted image contains coordinate data, the address address or coordinates of this user-provided information specify the position from the coordinate data, and the coordinate data is acquired at the time of posting. If so, the position is specified from the coordinate data. Further, when a keyword (for example, OO station) related to an address is included in the comment, the position is specified from the keyword. In the user-provided information storage unit 202, the user terminal 1 is identification information for identifying the user who provided the information related to disaster prevention and tourism, the address data (address address), coordinate data, and information of the place. The ID is acquired and the information is accumulated.

  Further, the management server 2 includes a keyword storage unit 204, an additional information storage unit 205, an information search unit 211, a keyword extraction unit 212, an information classification unit 213, as a module group for associating additional information with map data. A data synthesis unit 214 and a data distribution unit 215 are provided.

  The information search unit 211 is a module that searches information in each storage unit as a search keyword and acquires Web information related to the search keyword or user-provided information as additional information. In the present embodiment, the information search unit 211 acquires Web information from the address address included in the map data of the map data storage unit 203 or searches for user-provided information in the user-provided information storage unit 202.

  When Web information is acquired from an address address included in the map data of the map data storage unit 203, the Internet is searched using the address address on the map data as a search keyword, and Web information related to the address address is obtained. Acquired as additional information. Thereby, for example, it becomes clear whether the address has a refuge, a sightseeing spot, an accommodation facility such as a hotel, or a hospital.

  Here, the Web server 6 searched by the information search unit 211 is various Web servers, and in this embodiment, a server that distributes disaster prevention related information, a server that distributes city planning information, and distribution of tourism and guest house information. Server, a server that distributes various cultural properties and battlefield information, a server that distributes hospital and care information, a server that distributes barrier-free information, a server that distributes nature / environment information, and information on special items such as tourism farms Servers that deliver store information such as restaurants and restaurants. Also included are SNS system servers such as Facebook and Twitter.

  On the other hand, when searching for predetermined information from the user-provided information storage unit 202, a character string of the provided comment, an address position or coordinates included in the user-provided information are extracted. The retrieved Web information or user-provided information is input to the keyword extraction unit 212. In the information search unit 211, the search order of the map data storage unit 203 and the user-provided information storage unit 202 is arbitrary. First, Web information is acquired from the address address included in the map data, and then the user It is preferable to search the provided information. Thus, for example, after it is determined that the position is an evacuation site by Web search, detailed information can be linked from a comment about the evacuation site by user-provided information.

  The keyword extraction unit 212 is a module that extracts information serving as keywords from the additional information (Web information or user-provided information) acquired by the information search unit 211. When the keyword is a character string, for example, the keyword is extracted from the text included in the content or the provided information by morphological analysis, and TF-IDF (Term Frequency-Inverse Document Frequency) is used. To extract characteristic words as content keywords. Note that the keyword to be extracted may be an address number, or an evacuation facility name, a tourist spot name, a store name, and a comment (evaluation) described with each of the above names. For example, when image data is used, coordinate data included in the image data may be extracted as a keyword. The keyword extraction method is not limited to the method described above, and various techniques can be used.

  The keyword accumulation unit 204 is a database that accumulates the keywords extracted by the keyword extraction unit 212. Here, the keyword accumulation unit 204 adds address data and coordinate data to the extracted keywords and accumulates them.

  The information classification unit 213 extracts a predetermined character string from the Web information acquired by the information search unit 211 or the user-provided information, determines the attribute of the Web information from the appearance frequency of the extracted character string, and is extracted This is a module for classifying and storing the Web information as additional information in association with the attribute and address. In the present embodiment, the attribute of the Web information is determined from the appearance frequency of the character string (keyword) extracted by the keyword extraction unit 212. For example, if there are many character strings “evacuation shelter”, the keyword is classified as an attribute related to disaster prevention. For example, if many characters “hotel” are included, the keyword is classified as tourism / guest house. Categorize into related attributes.

  Here, the fields to be classified are “disaster prevention”, “city planning”, “tourism”, “accommodation facilities”, “cultural assets / battlefields”, “hospital / nursing care”, “barrier free”, “ “Nature / Environment”, “Specialties”, “Restaurant” etc. are included. Others include “property tax” indicating the property tax of each land, timetable of ship landing, railway, bus etc. "Table", "security" indicating the position of the security camera, "water supply and sewage", "shopping street guidance" indicating information on each store in the shopping street, "service information" indicating predetermined facilities such as fishing grounds, beauty treatment salons, etc. “EV installation location” indicating the location, “toilet” indicating the toilet location, “park” indicating the park, “AED installation location” indicating the AED installation location, “parking location” indicating the parking lot, and “school” indicating the school Categorized into various fields such as “event” indicating event information Can.

  The additional information storage unit 205 is a database that stores Web information or user-provided information acquired by the information search unit 211, the keyword extraction unit 212, and the information classification unit 213 as additional information. In this embodiment, additional information is specified. In the additional information ID, the name of the additional information, address data, coordinate data, the keyword of the additional information, and the classification (attribute information) are stored.

  The data composition unit 214 is a module that associates each data stored in the map data storage unit 203 and the additional information storage unit 205. The data composition unit 214 can display the additional information on the map data by associating the address data or the coordinate data in the additional information storage unit 205 with the address data or the coordinate data in the map data.

  In the present embodiment, the information search unit 211 has a function of searching again from the Internet 5 or the user-provided information storage unit 202 using the keyword recorded in the keyword storage unit 204, and is re-searched. Information is acquired as additional information. For example, when an evacuation site at the time of a disaster is searched from an address number and the evacuation site name is extracted as a keyword, the user's post about the evacuation site is searched again using the evacuation site name as a search keyword. (For example, comments on buildings that are at risk of collapse, comments on roads that are likely to be submerged, comments on places that are likely to fall into gutters when flooded, comments on areas that are at risk of fire whirlwind, etc.) may be added as additional information it can.

  Furthermore, for example, when a tourist spot is searched from an address, by searching again with the name of the tourist spot as a search keyword, a restaurant or souvenir shop near the tourist spot, or a good shooting spot, etc. If there is information, the information can be added to the information of the tourist spot. As described above, in this embodiment, by re-searching the extracted keyword, it is possible to acquire various Web information and user-provided information derived from the keyword, so that the citizen himself can visit the site on his / her own foot. Information that can be found for the first time by searching for a friend can also be added as common information.

  The data distribution unit 215 is a module that distributes the combined map data to the user terminal 1. In the present embodiment, each data stored in the map data storage unit 203 and the additional information storage unit 205 is distributed in a state in which it is associated with an address address.

  Note that each of the modules provided in the management server 2 is controlled by the control unit 210. The control unit 210 is configured by a processor such as a CPU or DSP (Digital Signal Processor), memory, hardware such as other electronic circuits, software such as a program having the function, or a combination thereof. It is an arithmetic module, and various function modules are virtually constructed by appropriately reading and executing a program, and various processes for operation control of each unit and user operations are performed by the constructed function modules.

(2) User terminal 1
Next, the internal configuration of the user terminal 1 will be described. First, a basic internal configuration of the user terminal 1 will be described. FIG. 11 is a block diagram showing an internal configuration of the mobile communication terminal 1 according to the present embodiment. As shown in the figure, the mobile communication terminal 1 includes a duplexer 102 connected to an antenna 101, and a reception system module and a transmission system module connected to the duplexer 102.

  The reception system module includes a low noise amplifier 110, a mixer 111, an IF amplifier 112, an orthogonal mixer 113, an A / D converter 114, a demodulator 115, a channel decoder 116, an audio decoder 117, a D / A converter 118, and an amplifier 119 with a switch. And a speaker 120. On the other hand, the transmission system module includes a microphone 140, an amplifier 139, an A / D converter 138, an audio encoder 137, a channel encoder 136, a modulator 135, a D / A converter 134, an orthogonal mixer 133, an IF amplifier 132, a mixer 131, and A power amplifier 130 is provided.

  The mobile communication terminal 1 includes a synthesizer 103, a time base 150, a CPU 180, a RAM 152, a ROM 153, and an EEPROM 151 as control system modules, and includes an acceleration sensor 164, an LCD 165, operation buttons 166, an LED 167, and a touch sensor as user interface modules. 168 and a vibrator 174, and further includes a power supply system battery 171, a power supply 172, and an A / D converter 173 as a power supply system module.

  The antenna 101 transmits and receives signals to and from a base station (not shown) via a radio wave line. The duplexer 102 is a circuit that switches between input and output of a signal to be transmitted and received. The duplexer 102 inputs a signal received by the antenna 101 to the low noise amplifier 110 and outputs a signal output from the power amplifier 130 to the antenna 101.

  In the reception system module, the low noise amplifier 110 amplifies the signal input from the duplexer 102 and outputs the amplified signal to the mixer 111. The mixer 111 receives the output of the low noise amplifier 110, separates it by a specific frequency, and outputs it as an intermediate frequency signal. The IF amplifier 112 amplifies the intermediate frequency signal output from the mixer 111. The orthogonal mixer 113 receives the output of the IF amplifier 112 and performs orthogonal demodulation. The A / D converter 114 digitizes the output of the orthogonal mixer 113. The demodulator 115 demodulates the output of the A / D converter 114. Channel decoder 116 performs error correction on the output of demodulator 115. The error-corrected signal includes a control message and voice data. The control message is sent to the CPU 180 and the voice data is sent to the voice decoder 117.

  The signal input from the channel decoder 116 to the audio decoder 117 is decoded into audio data and delivered to the D / A converter 118. The D / A converter 118 converts the output of the audio decoder 117 into an analog signal. The switch-equipped amplifier 119 is switched at an appropriate timing based on a control signal from the CPU 180, and amplifies the output of the D / A converter 118 when the switch is ON. The speaker 120 amplifies the output of the switch-equipped amplifier 119.

  On the other hand, in the transmission module, the microphone 140 receives an audio signal from the user and outputs the audio signal as an analog signal. The amplifier 139 amplifies the analog signal output from the microphone 140. The A / D converter 138 converts the output of the amplifier 139 into a digital signal. The audio encoder 137 encodes and compresses the output of the A / D converter 138 and outputs it as audio data. The channel encoder 136 combines the control message from the CPU 180 and the audio data from the audio encoder 137, and adds an error correction code.

  The modulator 135 modulates the output of the channel encoder 136. The D / A converter 134 converts the output of the modulator 135 into an analog signal. The orthogonal mixer 133 converts the output of the D / A converter 134 into an IF frequency signal (intermediate frequency signal). The IF amplifier 132 amplifies the output of the quadrature mixer 133. The mixer 131 increases the frequency of the signal output from the IF amplifier 132. The power amplifier 130 amplifies the output of the mixer 131.

  The synthesizer 103 synchronizes the mixer 111, the quadrature mixer 113, the mixer 131, and the quadrature mixer 133 during communication. The time base 150 supplies a clock signal to each unit.

  In the user interface system, the acceleration sensor 164 is a sensor that detects the magnitude and direction of acceleration. The LCD 165 is a liquid crystal display that displays messages, input characters, and the like to the user. In the GUI on the touch panel, graphics such as characters, graphics, and moving images can be displayed via the LCD 165, and an operation signal is acquired through the touch sensor 168 on the touch panel.

  The LED 167 is for transmitting a message to the user by turning on and off. The touch sensor 168 detects that a user's finger has touched the touch panel surface, and acquires an operation signal based on pressure on the touch panel surface. The vibrator 174 is a device that notifies an incoming call, and vibrates when the incoming call is received.

  The power system battery 171 supplies power to the power source 172 and the A / D converter 173. A power source 172 is a power source of the mobile communication terminal 1. The A / D converter 173 supplies a signal to the CPU 180.

  The CPU 180 is an arithmetic processing unit that controls the above-described units, and sequentially executes the commands of the program stored in the ROM 153 and performs various functions. The RAM 152 is used as a working memory or the like for the CPU 180, and temporarily stores the calculation results obtained by the CPU 180. Various function programs and data for the CPU 180 are recorded in the ROM 153, and program execution instructions are sequentially output in response to a request from the CPU 180.

  The EEPROM 151 stores user data such as abbreviated dials, machine IDs and telephone numbers, menu icon information, and display information thereof. The menu icons are associated with various functions and data of the information processing apparatus, and are arranged in a matrix on the screen according to the functions and data attributes.

  In this embodiment, the CPU 180 executes software such as the navigation program of the present invention, so that various modules are virtually constructed on the CPU 180.

  Next, the internal configuration of the user terminal 1 when the navigation program is executed will be described. As shown in FIG. 4, the user terminal 1 includes a communication interface 11, a memory 15, an application execution unit 180, an output interface 13, an input interface 12, and a position information acquisition unit 16.

  The communication interface 11 has a function of executing wireless communication using a mobile communication protocol for performing a call and wireless communication using a data communication protocol such as a wireless LAN, for example, a 4G line, a LET line, a 3G line, It can be connected to a public mobile phone network such as a PHS or other high-speed data communication network. Specifically, the communication interface 11 is a transmission / reception device compliant with IEEE 802.11b for performing wireless LAN connection, and can be realized by a wireless LAN adapter or the like in a mobile computer or PDA. The communication interface 11 also has a function of performing wireless communication with a relay device that is a Wi-Fi router using the Wi-Fi method (registered trademark).

  The input interface 12 is a device for inputting user operations such as operation buttons and a touch panel. The output interface 13 is a device that outputs video and sound, such as a display and a speaker. In particular, the output interface 13 includes a display unit 13a such as a liquid crystal display. The display unit 13a is a display including the LCD 165 and the touch sensor 163. The memory 15 is a storage device that stores an OS (Operating System), programs for various applications, other data, and the like, and includes the above-described EEPROM 151, RAM 152, ROM 153, and the like. In this memory 15, the additional information storage unit 15 a for recording each information stored in the additional information storage unit 205 of the management server 2 and each information stored in the map data storage unit 203 of the management server 2 are recorded. The map data storage unit 15b is associated and stored.

  The position information acquisition unit 16 is a module that acquires and records position information indicating the current position of the own device. For example, the position information acquisition unit 16 detects the position of the own device based on a signal from the satellite 3 such as GPS (Global Positioning System). Or the position is detected by the radio field intensity from the radio base station 4 or the like. The detected monitoring position information is coordinate data that can be specified by the map information, and is transmitted to the application execution unit 180.

  The application execution unit 180 is a module that executes an application such as a general OS or browser software, and is usually realized by a CPU or the like, and is similar to the CPU 180 described above. By executing the program of this system by the application execution unit 180, the data acquisition unit 181, the display information generation unit 182, the map analysis unit 183, the additional information addition unit 184, the map information acquisition unit 185, A current position acquisition unit 186 and a classification selection unit 187 are constructed.

  The data acquisition unit 181 is a module that receives various data from the management server 2. In the present embodiment, the additional information of the additional information storage unit 205 associated by the data composition unit 214 and the map data stored in the map data storage unit 203 are acquired and recorded in the memory 15.

  The current position acquisition unit 186 is a module that acquires the current position of the user terminal 1 and calculates the coordinates of the current position through the position information acquisition unit 16 based on, for example, a GPS signal from the satellite 3. It is possible to acquire the position information of the own machine. The coordinate data acquired by the current position acquisition unit 186 is input to the map analysis unit 183.

  The map information acquisition unit 185 is a module that acquires map data including the current position from the map data storage unit 15b based on the coordinates acquired by the current position acquisition unit 186. The map information acquisition unit 185 is executed by control from the map analysis unit 183 and is executed by acquiring an operation signal for acquiring the current position from the input interface 12.

  The additional information adding unit 184 is a module that displays additional information related to the address and address at a position corresponding to the coordinates of the building so as to overlap the map data. In the present embodiment, the additional information in the additional information storage unit 15a is extracted based on the address address or the coordinate data in the map data extracted by the map information acquisition unit 185. Note that the additional information adding unit 184 extracts only the additional information having the selected attribute information when the attribute of the additional information is selected by the user operation.

  Further, in the present embodiment, when the users are grouped, it is possible to restrict the user-provided information to be displayed only on the terminals having the user IDs in the group. In this case, the memory 15 has a user ID of another person who forms a group in advance. Further, a display restriction check is input to the data in the additional information storage unit 15a, and a user ID for designating a range to be disclosed is linked. When the additional information is extracted, the additional information adding unit 184 determines whether or not there is a display restriction. If there is a display restriction, the user ID of the terminal and a user permitted to display in the data Whether or not to display is determined by comparing with the ID.

  The classification selection unit 187 is a module that determines a selected classification based on a user operation. In the present embodiment, as shown in FIG. 6, an icon for each classification is displayed on the screen of the display unit 13a. Here, icons related to disaster prevention, icons related to city planning information, icons related to tourism and guest house information, icons related to various cultural properties and battlefield information, icons related to hospital and care information, icons related to barrier-free information, and information related to nature and the environment Icons relating to information about special items such as icons and tourist farms are displayed. In addition, post information on the SNS system such as facebook and twitter can be displayed. When any icon is selected by a user operation, the operation signal is acquired and determined as an attribute of additional information to be displayed on the map. The determined attribute information is input to the map analysis unit 183.

  The map analysis unit 183 is a module that analyzes map data related to the current position. When an operation for displaying a map on the screen is performed by a user operation, the classification selection unit 187, the current position acquisition unit 186, and the map information acquisition unit 185 and the additional information adding unit 184 are controlled to analyze and determine each information to be displayed on the map.

  Specifically, first, when an operation signal for displaying map data on the display unit 13a is acquired by a user operation, the current position acquisition unit 186 is controlled so as to acquire current position information. When the coordinate data (latitude / longitude) of the current position is acquired from the current position acquisition unit 186, the coordinate data is then transmitted to the map information acquisition unit 185, and the map information acquisition unit 185 is controlled to include the coordinate data. A predetermined range of map data is extracted from the map data storage unit 15b.

  After acquiring the map data, the map analysis unit 183 transmits the address data included in the map data to the additional information adding unit 184 and controls the additional information adding unit 184 to send the address from the additional information accumulating unit 15a. Additional information related to the address and address included in the data is extracted and displayed at a position corresponding to the coordinates of the building so as to be superimposed on the map data. In addition, when the attribute information selected from the classification | category selection part 187 is acquired, it controls so that only the additional information in the said attribute information is extracted. The extracted map data and additional information are transmitted to the display information generation unit 182.

  The display information generation unit 182 is a module that displays map data in association with the current position acquired by the current position acquisition unit 186 and also displays address numbers in association with the coordinate position of the building. As shown in FIG. 1, the display information generation unit 182 displays outlines of roads, buildings, etc. with polygons around the current position on the screen of the user terminal 1, and also displays address addresses in the polygons. Let Further, an evacuation site icon 101 indicating an evacuation site as additional information is displayed on the screen. As described above, in the present embodiment, the address address layer and the attribute layer are superimposed on the map data and displayed on the screen.

  Further, the display information generating unit 182 can display additional information in a predetermined area on the screen as shown in FIGS. 7 (a) and 7 (b). Here, FIGS. 7A and 7B illustrate an example in which map data is displayed on the screen of the car navigation device 1a or the personal computer 1b as the user terminal 1 other than the mobile phone or the smartphone. Such a display form can also be displayed on the screen of a smartphone as shown in FIG.

  For example, as shown in FIG. 7A, an additional information display area for displaying additional information may be pasted on a map, and the details of the additional information may be displayed in the area. In this case, the information displayed in the additional information display area is additional information including an address number on the displayed map. An icon indicating the position of the additional information is displayed on the map.

  For example, as shown in FIG. 7B, a map display area for displaying a map and an additional information display area for displaying additional information can be displayed separately. Here, the date information is also included, and the additional information on which the event is performed today is displayed in the additional information display area. In this case as well, an icon indicating the position of the additional information is displayed on the map.

  In the present embodiment, the map analysis unit 183 includes a current position correction unit 183 a that corrects position information acquired from the satellite 3. That is, when acquiring the current position using the satellite 3, an error occurs in the range of 10 m to 40 m because it is greatly affected by the positioning accuracy of the GPS receiver and the environment in which the positioning is performed. Therefore, in this embodiment, as shown to Fig.10 (a), the said address is selected by clicking the address address 193 (12 address in the figure) among the maps currently displayed on the display part 13a. The location information can be changed with the address number as the current location.

  Specifically, the current position correcting unit 183a selects an address number 193 (12 in the figure) from the map displayed on the display unit 13a by an operation on the input I / F 12 such as a touch panel ( The coordinates (latitude / longitude) associated with the selected address / address are acquired from the map data storage unit 15b by being touched or clicked, and the current position acquisition unit 186 receives the coordinates based on the acquired coordinates. On the other hand, the correction of the current position is requested and the correction of the displayed map data is executed. The current position acquisition unit 186 requested to correct the current position corrects the error of the GPS positioning calculation, and reflects it in the accuracy improvement of the subsequent positioning calculation based on the correction information based on the error.

  Thereafter, the map analysis unit 183 controls each functional module to display an icon 193 indicating the current position at the selected address as shown in FIG. 10B, and the address becomes the center of the screen. To change the display on the map. At this time, the address address newly added on the screen is searched for the presence or absence of additional information using each function module, and if there is additional information, it is displayed on the screen.

  In the present embodiment, the user terminal 1 has a function of adding user-provided information as additional information based on information provided from another user terminal 1. FIG. 6 is a block diagram showing an internal configuration of the additional information adding unit 184 according to the present embodiment. Specifically, the additional information adding unit 184 includes an information search unit 144a that is the same functional module as the information search unit 211 in the management server 2 and a functional module similar to the keyword extraction unit 212 in the management server 2. A keyword extraction unit 144b and an information classification unit 144c which is a functional module similar to the information classification unit 213 in the management server 2, and the name, address data, and coordinates of the additional information stored in the memory 15 Information on the Internet 5 is searched using data or the like as a search keyword to obtain information related to the additional information. The income information can be distributed to the management server 2 as user-provided information.

(Survey (view) type navigation method)
By operating the survey (view) type navigation system having the above configuration, the survey (view) type navigation method can be implemented. FIG. 8 is a flowchart showing map data creation processing in the survey (view) navigation method according to this embodiment, and FIG. 9 shows map data display processing in the survey (view) navigation method according to this embodiment. It is a flowchart.

(1) Map data creation processing First, map data creation processing will be described. As shown in FIG. 8, the management server 2 acquires the map data of the address and address and stores this information in the map data storage unit 203 (S101). In the present embodiment, the map data of the address and address is acquired in advance. For example, the map data in which only the administrative district is displayed is acquired, and polygons such as buildings are converted, and coordinates (latitude and longitude) are acquired. Or the address number may be created in the management server 2 in association with the map data. In addition, the management server 2 acquires user-provided information provided from the user terminal 1 via the communication interface 201. The control unit 210 stores this information in the user provided information storage unit 202 (S102).

  Thereafter, the information search unit 211 searches a predetermined character string from the information stored in each storage unit as a search keyword, and acquires additional information (S103). Here, the information search unit 211 acquires Web information from the address address included in the map data of the map data storage unit 203 or searches for user-provided information in the user-provided information storage unit 202.

  When Web information is acquired from the address address included in the map data of the map data storage unit 203, the information search unit 211 searches the Internet using the address address included in the map data of the map data storage unit 203 as a search keyword. Then, Web information related to the address is acquired as additional information. Thereafter, the retrieved Web information is transmitted to the keyword extraction unit 212. On the other hand, when searching for user-provided information in the user-provided information storage unit 202, the information search unit 211 obtains a comment character string, an address position, or coordinates included in the user-provided information in the storage unit 202. To the keyword extraction unit 212.

  The keyword extraction unit 212 extracts a character string as a keyword from the Web information acquired by the information search unit 211 or user-provided information (S104), and stores the keyword in the keyword storage unit 204 together with the address and address data. To do. Thereafter, the information classification unit 213 determines the attribute of the Web information or the user-provided information from the appearance frequency of the character string that is the extracted keyword, and associates the Web information with the extracted attribute and the address address, or The user-provided information is classified as additional information (S105), and the classified additional information is stored in the additional information storage unit 205 (S106).

  After that, when new additional information is accumulated in the additional information accumulation unit 205, the data composition unit 214, the address address or coordinates included in the map data accumulation unit 203, and the address address or coordinates in the additional information accumulation unit 205 Based on the above, the data of both storage units are combined (associated) (S107). Thereafter, the information search unit 211 determines whether to search again for Web information or user-provided information using the keywords recorded in the keyword storage unit 204 (S108). “Y”), the processing from step S103 to step S107 is repeated. After the re-search is completed beyond the predetermined search range (“N” in S108), data distribution processing is performed.

  The data distribution unit 215 distributes the combined data in the map data storage unit 203 and the data in the additional information storage unit 205 to each user terminal 1 via the communication network 5 (S108). The distribution timing may be a timing when new additional information is associated with the map data, or may be performed every predetermined time.

(2) Map data display process Next, the map data display process processed by the user terminal 1 will be described. Here, it is assumed that the data of the map data storage unit 203 and the data of the additional information storage unit 205 are acquired from the management server 2 and stored in the memory 15 in advance in the memory 15 of the user terminal 1. .

  First, when an application of the survey (view) navigation system is activated on the application execution unit 180 (S201), the application execution unit 180 monitors a user operation and determines whether or not a map display operation is performed. Is determined (S202). This map display operation may be, for example, an operation for starting navigation to a predetermined destination, or may simply be display of map data including the current position.

  If there is no map display operation (“N” in S202), it is determined whether there is an end operation while waiting (S210). On the other hand, when there is a map display operation (“Y” in S202), the current position acquisition unit 186 controls the satellite 3 via the position information acquisition unit 16 of the user terminal 1 under the control of the map analysis unit 183. The GPS signal is received (S203), and the current position (coordinate data) is obtained by calculating the coordinates of the current position based on the GPS signal (S204). The coordinate data acquired by the current position acquisition unit 186 is input to the map analysis unit 183. Next, the map analysis unit 183 controls the map information acquisition unit 185 to acquire map data including the current position from the map data storage unit 15b based on the coordinate data acquired by the current position acquisition unit 186 ( S205).

  Thereafter, the map analysis unit 183 determines whether or not a classification has been selected by a user operation (S206). If there is no classification selection (“N” in S206), the map data with the address including the current position is displayed (S210). On the other hand, if there is a category selection (“Y” in S206), the attribute information selected from the category selection unit 187 is acquired, and additional information including the selected attribute is acquired by controlling the additional information addition unit 184. get. Specifically, the additional information adding unit 184 searches for additional information in the additional information accumulating unit 15a based on the address in the map data extracted by the map information acquiring unit 185 (S208). The additional information that matches the selected attribute information is extracted (S209).

  Then, the additional information adding unit 184 controls the map analyzing unit 183 to superimpose the additional information related to the address number on the map data (S209), and the display information generating unit 182 causes the map data and the additional information to be superimposed. Based on the above, the map data of the street address is displayed on the screen of the display unit 13a, and the additional information is displayed at a position corresponding to the coordinates of the building (S210).

  Thereafter, the application execution unit 180 acquires the current position at any time until an end operation is performed, and updates the map data to be displayed while acquiring the map data and additional information to be displayed on the display unit 13a (S203 to S210). ). On the other hand, if there is a termination operation (“Y” in S211), the application is terminated.

(Action / Effect)
According to the present embodiment, the map data is displayed in correspondence with the current position acquired by the current position acquisition unit 186, and the address and address are displayed in correspondence with the coordinate position of the building. That is, in the present embodiment, the relationship between the natural coordinate system of latitude and longitude and the social coordinate system of the house number of the house (including the house number display in the area where the house display is not performed) and the current position specified by the GPS , Users can use social coordinate system freely.

  As a result, as in the conventional system, the effectiveness of the search action is not limited to “unidirectionality” such as the “knownness” of the destination and the route setting to the destination. With a comprehensive address and clues, it is possible to "discover" and "360-degree omnidirectional" with a spacious view. This means that the search capability in the local geographic space, its action radius, and the degree of freedom are greatly expanded and greatly improved.

  In particular, in this embodiment, the additional information adding unit 184 displays additional information related to the address (disaster prevention information or sightseeing information) at a position corresponding to the coordinates of the building so as to be superimposed on the map data. As a result, the geographical location of local evacuation sites, altitudes, danger information, tourist spots, events, etc. is not known as known information, and even in multiple cases, orderly and concurrent It will be possible to find it locally. As before, you won't get lost or give up access before 1 / 10th of the required achievement due to the feeling of tiredness that you won't get lost in the middle of your work. .

  In this way, the dramatic efficiency of the search behavior and the sense of accomplishment that rewards the effort are familiar to the local geographic space, and the survey (view) navigation system of the present invention is used to “walk” Joy to do ". In addition, the large degree of freedom of action is also important for the elderly, the disabled, children, pregnant women, etc. in order to find necessary information and to encounter unexpected “discovery”. It brings about a physical space.

  In addition, the convenience described above is expected to make the following major contributions to the national issue of “disaster reduction”. In other words, because of the convenience of the panoramic navigation system, knowledge of evacuation behavior and evacuation patterns such as local altitude, evacuation routes, evacuation sites, etc., are also used as a sightseeing stroll. Imprinted on. As a result, local disaster prevention and risk information, as well as lifelong learning and sightseeing around the local history and historic sites, will form a map image in your head, making it possible to reflect evacuation behavior in an emergency. It helps to form an evacuation literacy (= evacuation knowledge and ability to survive the earthquake).

  Furthermore, it is a navigation system that can be easily used by immigrants, students, and foreigners who are not familiar with the land, such as the building address display, where location information is written in numbers that are universally understood by children.

  In the conventional navigation system, for example, when there are multiple alleys at intervals of 10 meters, it is impossible to detect which alleys originally entered because the GPS function is within the error range. Since it can be easily confirmed by the address display of a vending machine, it does not get lost or deviate from the target direction.

  When moving by walking, in conventional navigation systems, it is unclear which direction you are traveling, especially at the junctions such as the crossroads, and it may cause a lot of loss, such as noticing mistakes only after going tens of meters. In the system, the direction can be easily determined by the building address (also displayed on the vending machine), etc., which is also effective in preventing crossing.

  In this survey (view) type navigation system, the address number does not necessarily have to be displayed on every building. For example, it is displayed on buildings such as intersections and along roads, or in densely populated areas. Then, it may be omitted as appropriate within the range necessary for position confirmation, such as thinning out and displaying. Furthermore, this system can safely guide to an evacuation site or an evacuation route by a function as a house map even when the GPS function cannot be used at the time of a disaster.

  Also, in this survey (view) type navigation system, the arrangement of features, buildings, etc. in the spread of the ground surface can be visually judged based on the building number displayed on the map, so This makes it possible to extract the human's superior graphic processing ability (which machines cannot reach), and creates efficiency comparable to that of conventional navigation systems in disaster prevention learning and strolling access and use of tourist information.

  Further, in the present embodiment, the information search unit 211 searches the Internet using the address address as a keyword, and acquires Web information related to the address address as additional information, so that it is displayed on the map. More additional information can be extracted and notified to the user. At this time, in this embodiment, a predetermined character string is extracted from the Web information acquired by the information search unit 211, the attribute of the Web information is determined from the appearance frequency of the extracted character string, and the extracted attribute and address Since the Web information is classified and stored as additional information in association with the address, only the information that the user wants to know can be displayed on the map data, and the convenience is improved. Can do.

  In the present embodiment, the address and address can be selected by the input interface 12 on the map displayed by the display information generation unit 182. Then, the current position correction unit 183a acquires the coordinates associated with the address address selected by the input interface 12 from the map data storage unit 15b, and based on the acquired coordinates, the current position acquisition unit 186 Since correction of the displayed map data is requested and the current position is corrected, there is an error in positioning due to the positioning accuracy of the GPS receiver and the influence of the positioning environment. However, accurate position information can be acquired by a user operation, and errors in position information acquired from satellites can be eliminated. Furthermore, the current position acquisition unit 186 can use the error correction information to reflect the accuracy of the subsequent positioning calculation.

  In the present embodiment, the coordinates associated with the address address are stored in the map data storage unit 15b, and the current position is corrected based on the selected address address. Can be done. Furthermore, in this embodiment, since the address address is displayed on the map displayed by the display information generation unit 182 and the displayed address address can be selected, for the user, on the map, It is possible to immediately recognize the difference from the position and the correction work intuitively.

DESCRIPTION OF SYMBOLS 1 ... User terminal 1a ... Car navigation apparatus 1b ... Personal computer 2 ... Management server 3 ... Communication satellite 4 ... Wireless base station 5 ... Communication network (Internet)
6 ... Web server 11 ... Communication interface 12 ... Input interface 13 ... Output interface 13a ... Display unit (display)
DESCRIPTION OF SYMBOLS 14 ... Application execution part 15 ... Memory 16 ... Position information acquisition part 61a ... Database 101 ... Antenna 102 ... Duplexer 103 ... Synthesizer 110 ... Low noise amplifier 111 ... Mixer 112 ... IF amplifier 113 ... Orthogonal mixer 114 ... Converter 115 ... Demodulator 116 ... Channel decoder 117 ... Audio decoder 118 ... Converter 119 ... Amplifier 120 ... Speaker 130 ... Power amplifier 131 ... Mixer 132 ... IF amplifier 133 ... Orthogonal mixer 134 ... Converter 135 ... Modulator 136 ... Channel encoder 137 ... Audio encoder 138 ... Converter 139 ... Amplifier 140 ... Microphone 150 ... Timebase 151 ... EEPROM
152 ... RAM
153 ... ROM
164 ... Acceleration sensor 165 ... LCD
166 ... Operation buttons 167 ... LED
168 ... Touch sensor 171 ... Power system battery 172 ... Power source 173 ... Converter 174 ... Vibrator 175 ... Input interface 191, 192 ... Icon 200 ... CPU
181 ... Data acquisition unit 182 ... Display information generation unit 183 ... Map analysis unit 184 ... Additional information addition unit 184a ... Information search unit 184b ... Keyword extraction unit 184c ... Information classification unit 185 ... Map information acquisition unit 186 ... Current position acquisition unit 187 ... Category selection unit 15a ... Additional information storage unit 15b ... Map data storage unit 201 ... Communication interface 202 ... User provided information storage unit 203 ... Map data storage unit 204 ... Keyword storage unit 205 ... Additional information storage unit 210 ... Control unit 211 ... Information search unit 212 ... Keyword extraction unit 213 ... Information classification unit 214 ... Data synthesis unit 215 ... Data distribution unit

Claims (4)

A current position acquisition unit for acquiring the current position;
A display information generation unit that displays map data in correspondence with the current position acquired by the current position acquisition unit;
With
The map data is obtained by displaying terrain, a map, and a building in a diagram, a character, and a figure on coordinates indicated by latitude and longitude,
The display information generation unit combines the natural coordinate system of latitude and longitude with the social coordinate system of the house number (the house number in the area where the house display is not performed) to the house on the map data. In the implementation area, there is further provided an additional information adding unit that displays only the lot number) and displays the additional information related to the residence number on the map data so as to be displayed at a position corresponding to the coordinates of the building. A survey (view) type navigation system. A current position acquisition unit for acquiring the current position;
A display information generation unit that displays map data in correspondence with the current position acquired by the current position acquisition unit;
With
The map data is obtained by displaying terrain, a map, and a building in a diagram, a character, and a figure on coordinates indicated by latitude and longitude,
The display information generation unit combines the natural coordinate system of latitude and longitude with the social coordinate system of the house number (the house number in the area where the house display is not performed) to the house on the map data. In the implementation area, only the lot number) is displayed.
In order to safely guide to an evacuation place or an evacuation route, the display information generation unit is configured to store the residence number ( A survey (view) type navigation system characterized by automatically displaying a map characterized by displaying only a lot number in a district where a residence display is not performed, centering on the current location at the time. A current position acquisition unit for acquiring the current position;
A display information generation unit that displays map data in correspondence with the current position acquired by the current position acquisition unit;
With
The map data is obtained by displaying terrain, a map, and a building in a diagram, a character, and a figure on coordinates indicated by latitude and longitude,
Obtaining a user operation for selecting the address address on the map, wherein only the house number (the house number in the area where the house display is not performed) is displayed on the house on the map data displayed by the display information generation unit An input interface to
The coordinates associated with the address address selected by the input interface are acquired from the map data storage unit, and based on the acquired coordinates, the current position acquisition unit is requested to correct the current position and displayed. A survey (view) type navigation system, further comprising a current position correction unit for executing correction of map data. An information search unit that searches the Internet using the address address as a keyword and acquires Web information related to the address address as additional information;
A predetermined character string is extracted from the Web information acquired by the information search unit, the attribute of the Web information is determined from the appearance frequency of the extracted character string, and the Web information is associated with the extracted attribute and the address address. An information classifying unit for classifying and storing as additional information;
A user-provided information storage unit that acquires and stores information provided by each user;
Further comprising
The display information generation unit includes at least one of disaster prevention information or tourism information associated with the address address as additional information related to the residence number,
The display information generating unit displays a map that displays only a house number (a house number in an area where no house display is performed) on a house on the map data. Automatic display within the range including the route,
The information provided by the user includes at least information related to disaster prevention, and the information related to disaster prevention includes terrain and elevation near homes and schools, evacuation places, evacuation routes, bag alleys, buildings of more than 3 stories, collapse It includes at least one of buildings, block fences, vending machines that are in danger of being submerged, roads that are likely to be submerged, places that are likely to fall into gutters when inundated, and areas that are at risk of fire whirlwind Item 4. A survey (view) type navigation system according to any one of Items 1 to 3.