JP4834995B2

JP4834995B2 - Map data update notification method and map data update notification device

Info

Publication number: JP4834995B2
Application number: JP2005017057A
Authority: JP
Inventors: 山田　　信一
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2005-01-25
Filing date: 2005-01-25
Publication date: 2011-12-14
Anticipated expiration: 2025-01-25
Also published as: JP2006208468A

Description

本発明は、地図データが更新されたことをユーザに通知する地図データ更新通知方法および地図データ更新通知装置に関する。 The present invention relates to a map data update notification method and a map data update notification device that notify a user that map data has been updated.

表示画面に地図を表示する地図表示装置として、例えば、ナビゲーション装置のように、ハードディスクのようにデータの書き換えが可能な記憶媒体に地図データが格納されたものがある。 As a map display device that displays a map on a display screen, for example, a navigation device such as a hard disk such as a hard disk in which map data is stored in a rewritable storage medium is available.

このような地図表示装置として、例えば、通信回線を介して地図データ販売事業者のサーバから最新の地図データを取得して、記憶媒体の地図データを部分的に更新できるものがある。また、このような地図表示装置に通信を用いて最新の地図データを送信する車両用地図データ提供システムも提案されている（例えば、特許文献１参照）。
特開２０００−１２１３７１号公報 As such a map display device, for example, there is a device that can obtain the latest map data from a map data seller's server via a communication line and partially update the map data of the storage medium. In addition, a vehicular map data providing system that transmits the latest map data to such a map display device using communication has been proposed (see, for example, Patent Document 1).
JP 2000-121371 A

上記したような地図表示装置の地図データは、地図データ販売事業者等によって随時更新される。そこで、地図データ販売事業者等によって地図データが最新のものに更新された場合、地図データが更新されたことを電子メール等によって地図表示装置の利用者（顧客）に通知するサービスが考えられる。 The map data of the map display device as described above is updated at any time by a map data sales company or the like. Therefore, when the map data is updated by the map data sales company or the like, a service for notifying the user (customer) of the map display device by e-mail or the like can be considered.

しかし、地図表示装置の全ての利用者に地図データが更新されたことを通知すると、このような通知を希望していない利用者にまで地図データの更新通知を配信してしまうことになり、利用者に迷惑をかけてしまう。また、利用者が地図データの更新通知を希望している場合であっても、その利用者が必要としない地域の地図データの更新通知を多数送信すると、その利用者に迷惑をかけてしまう。 However, if all users of the map display device are notified that the map data has been updated, the map data update notification will be delivered to users who do not wish to receive such notification. Cause trouble. Even if the user wishes to update the map data, if the user sends a large number of map data update notifications in areas not required by the user, the user is inconvenienced.

本発明は上記問題に鑑みたもので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to guide a user who wants to be notified of update of map data to update the map data of a region desired by the user.

上記目的を達成するため、請求項１に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図表示装置で用いられる地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の種別に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の種別が高速道路又は国道の場合は、新規の道路の種別が市町村道の場合より、前記所定エリアの大きさを大きくし、所定エリア内に利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項２に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の構造に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の構造が橋又はトンネルの場合は、所定エリアの大きさをより大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項３に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の道路密度が記憶された道路密度データベースから新規の道路が存在する地域の道路密度を取得し、取得した道路密度に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、道路密度が低い場合には、道路密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項４に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の人口密度が記憶された人口密度データベースから新規の道路が存在する地域の人口密度を取得し、取得した人口密度に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、人口密度が低い場合には、人口密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項５に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の幅員に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の幅員が大きい場合は、新規の道路の幅員が小さい場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項６に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の車線数に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の車線数が多い場合は、新規の道路の車線数が少ない場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項７に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路に接続される道路の種別に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路に接続される道路の種別が高速道路又は国道の場合は、新規の道路に接続される道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項８に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の種別に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の種別が高速道路又は国道の場合は、新規の道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項９に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の構造に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の構造が橋又はトンネルの場合は、所定エリアの大きさをより大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項１０に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の道路密度が記憶された道路密度データベースから新規の道路が存在する地域の道路密度を取得し、取得した道路密度に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、道路密度が低い場合には、道路密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項１１に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の人口密度が記憶された人口密度データベースから新規の道路が存在する地域の人口密度を取得し、取得した人口密度に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、人口密度が低い場合には、人口密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項１２に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の幅員に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の幅員が大きい場合は、新規の道路の幅員が小さい場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項１３に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の車線数に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の車線数が多い場合は、新規の道路の車線数が少ない場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。
また、上記目的を達成するため、請求項１４に記載の発明では、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路に接続される道路の種別に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路に接続される道路の種別が高速道路又は国道の場合は、新規の道路に接続される道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知することを特徴としている。 To achieve the above object, according to the invention of claim 1, it maps the data update notification apparatus, stores the position information of the earth points specified by a user of the map displaying device in the storage unit, in the map display device Oite the map database for storing map data used when the map data including the new road is stored, according to the type of new road, changing the size of the predetermined area including the point on the new road so as to, if the new category of a road highway or national road, than the new category of a road of municipal roads, the larger the size of the predetermined area, designated by a Subscriber to a predetermined area If searching whether include point includes a point specified by the user to a Jo Tokoro area is characterized by notifying the update of the map data to the user.
In order to achieve the above object, in the invention described in claim 2, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the structure of the new road is changed so that the size of the predetermined area including the point on the new road is changed according to the structure of the new road. If it is a bridge or a tunnel, the size of the predetermined area is increased, and it is searched whether or not the point specified by the user stored in the storage means is included in the predetermined area, and used in the predetermined area. When a point designated by the user is included, the user is notified of the update of the map data.
In order to achieve the above object, in the invention described in claim 3, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including new roads is stored in the map database to be acquired, the road density of the area where the new road exists is obtained from the road density database in which the road density of each place is stored, and according to the acquired road density Thus, when the road density is low so that the size of the predetermined area including the point on the new road is changed, the size of the predetermined area is made larger than when the road density is high, and the storage means is stored in the predetermined area. If the point specified by the user is included in the predetermined area, the map data is displayed to the user. It is characterized by notifying the update.
In order to achieve the above object, according to the invention described in claim 4, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including new roads is stored in the map database, the population density of the area where the new road exists is obtained from the population density database in which the population density of each place is stored, and according to the acquired population density When the population density is low so that the size of the predetermined area including the point on the new road is changed, the size of the predetermined area is made larger than the case where the population density is high, and the storage means is stored in the predetermined area. If the point specified by the user is included in the predetermined area, the map data is displayed to the user. It is characterized by notifying the update.
In order to achieve the above object, in the invention described in claim 5, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the width of the new road is changed so that the size of the predetermined area including the point on the new road is changed according to the width of the new road. If the width of the new road is large, the size of the predetermined area is made larger than when the width of the new road is small, and it is searched whether or not the point designated by the user stored in the storage means is included in the predetermined area. When the point designated by the user is included in the predetermined area, the update of the map data is notified to the user.
In order to achieve the above object, in the invention described in claim 6, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the size of the predetermined area including the point on the new road is changed according to the number of lanes of the new road. When the number of lanes is large, the size of the predetermined area is made larger than when the number of lanes on the new road is small, and whether or not the point designated by the user stored in the storage means is included in the predetermined area When a point designated by the user is included in the predetermined area, the update of the map data is notified to the user.
In order to achieve the above object, in the invention described in claim 7, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When the map data including the new road is stored in the map database, the size of the predetermined area including the point on the new road is changed according to the type of the road connected to the new road. When the type of road connected to the new road is an expressway or a national road, the size of the predetermined area is made larger and stored in the predetermined area than when the type of road connected to the new road is a municipal road. If the point specified by the user stored in the means is included and the point specified by the user is included in the predetermined area, the map data is sent to the user. It is characterized in that.
In order to achieve the above object, according to the invention described in claim 8, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the type of the new road. Thus, when the type of the new road is an expressway or a national road, the size of the predetermined area is made larger than when the type of the new road is a municipal road, and points on the new road are included in the predetermined area. In the case where a point on a new road is included in a predetermined area, the user is notified of the update of the map data.
In order to achieve the above object, in the invention according to claim 9, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the map data including the new road is stored in the storage unit according to the structure of the new road when the map data including the new road is stored in the map database. If the structure of the new road is a bridge or tunnel so that the size of the predetermined area including the point specified by the user is changed, the size of the predetermined area is increased and the new road is located within the predetermined area. Search for whether or not the above point is included, and if a point on a new road is included in the predetermined area, the user is notified of the update of the map data That.
In order to achieve the above object, in the invention described in claim 10, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including new roads is stored in the map database to be acquired, the road density of the area where the new road exists is obtained from the road density database in which the road density of each place is stored, and according to the acquired road density Thus, when the road density is low, the size of the predetermined area is made larger than when the road density is high so that the size of the predetermined area including the point designated by the user stored in the storage means is changed. If a predetermined area contains a point on a new road, and if a predetermined area contains a point on a new road, the user is requested to update the map data. It is characterized by notifying.
In order to achieve the above object, according to the invention described in claim 11, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including new roads is stored in the map database, the population density of the area where the new road exists is obtained from the population density database in which the population density of each place is stored, and according to the acquired population density Thus, when the population density is low, the size of the predetermined area is made larger than when the population density is high so that the size of the predetermined area including the point designated by the user stored in the storage means is changed. If a predetermined area contains a point on a new road, and if a predetermined area contains a point on a new road, the user is requested to update the map data. It is characterized by notifying.
In order to achieve the above object, in the invention described in claim 12, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the width of the new road. Thus, when the width of the new road is large, the size of the predetermined area is made larger than when the width of the new road is small, and whether or not a point on the new road is included in the predetermined area is searched. However, when a point on a new road is included in the predetermined area, the user is notified of the update of the map data.
In order to achieve the above object, according to the invention described in claim 13, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When map data including a new road is stored in the map database, the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the number of lanes of the new road. If the number of lanes on the new road is large, the size of the predetermined area is increased compared to the case where the number of lanes on the new road is small, and whether or not a point on the new road is included in the predetermined area When a point on a new road is included in a predetermined area, the user is notified of the update of the map data.
In order to achieve the above object, according to the invention described in claim 14, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and stores the map data. When the map data including the new road is stored in the map database, the predetermined area including the point designated by the user stored in the storage unit is determined according to the type of the road connected to the new road. In order to change the size, if the type of road connected to the new road is an expressway or a national road, the size of the predetermined area will be larger than if the type of road connected to the new road is a municipal road. If a predetermined area includes a point on a new road, and if a predetermined area includes a point on the new road, the user is notified of the update of the map data. It is characterized by a door.

上記請求項１に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の種別に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の種別が高速道路又は国道の場合は、新規の道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項２に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の構造に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の構造が橋又はトンネルの場合は、所定エリアの大きさをより大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項３に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者に地図データの更新を通知する地図データ更新通知装置の地図データ更新通知方法であって、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の道路密度が記憶された道路密度データベースから新規の道路が存在する地域の道路密度を取得し、取得した道路密度に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、道路密度が低い場合には、道路密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項４に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者に地図データの更新を通知する地図データ更新通知装置の地図データ更新通知方法であって、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の人口密度が記憶された人口密度データベースから新規の道路が存在する地域の人口密度を取得し、取得した人口密度に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、人口密度が低い場合には、人口密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項５に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データベースに新規の道路を含む地図データが記憶された場合、新規の道路の幅員に応じて新規の道路を含む所定エリアの大きさを変化させ、新規の道路の幅員が大きい場合、新規の道路の幅員が小さい場合より、新規の道路を含む所定エリアの大きさを大きくし、新規の道路を含む所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、新規の道路を含む所定エリアに利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項６に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の車線数に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路の車線数が多い場合は、新規の道路の車線数が少ない場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項７に記載の発明のように、地図データ更新通知装置は、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路に接続される道路の種別に応じて、新規の道路上の地点を含む所定エリアの大きさを変化させるよう、新規の道路に接続される道路の種別が高速道路又は国道の場合は、新規の道路に接続される道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に記憶手段に記憶された利用者によって指定された地点が含まれるか否かを検索し、所定エリア内に利用者によって指定された地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項８に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の種別に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の種別が高速道路又は国道の場合は、新規の道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項９に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の構造に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の構造が橋又はトンネルの場合は、所定エリアの大きさをより大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項１０に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の道路密度が記憶された道路密度データベースから新規の道路が存在する地域の道路密度を取得し、取得した道路密度に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、道路密度が低い場合には、道路密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項１１に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、各地の人口密度が記憶された人口密度データベースから新規の道路が存在する地域の人口密度を取得し、取得した人口密度に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、人口密度が低い場合には、人口密度が高い場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項１２に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の幅員に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の幅員が大きい場合は、新規の道路の幅員が小さい場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項１３に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路の車線数に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路の車線数が多い場合は、新規の道路の車線数が少ない場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。
また、請求項１４に記載の発明のように、地図データ更新通知装置は、地図表示装置の利用者によって指定された地点の位置情報を記憶手段に記憶させ、地図データを記憶する地図データベースに新規の道路を含む地図データが記憶された場合において、新規の道路に接続される道路の種別に応じて、記憶手段に記憶された利用者によって指定された地点を含む所定エリアの大きさを変化させるよう、新規の道路に接続される道路の種別が高速道路又は国道の場合は、新規の道路に接続される道路の種別が市町村道の場合より、所定エリアの大きさを大きくし、所定エリア内に、新規の道路上の地点が含まれるか否かを検索し、所定エリア内に新規の道路上の地点が含まれる場合、利用者に地図データの更新を通知するので、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。 As in the invention described in claim 1, the map data update notification apparatus, stores the position information of the earth points specified by a user of the map displaying device in the storage means, including new road MAP database in no event the map data is stored, according to the type of new road, to vary the size of the predetermined area including the point on the new road, when the type of new road highway or national road The type of the new road is larger than the municipal road, and the size of the predetermined area is increased, and whether or not the point specified by the user stored in the storage means is included in the predetermined area, When a point specified by the user is included in the specified area, the map data update is notified to the user, so that the user who wants the map data update notification is notified of the map data of the area desired by the user. update It can be guided to.
Further, as in the invention described in claim 2, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and newly adds it to the map database storing the map data. When the map data including the road is stored, the structure of the new road is changed to the bridge or tunnel so that the size of the predetermined area including the point on the new road is changed according to the structure of the new road. In the case, the size of the predetermined area is increased, and it is searched whether or not the point designated by the user stored in the storage means is included in the predetermined area, and the predetermined area is designated by the user. If a location is included, the map data update is notified to the user, so the user who wants the map data update notification is informed of the update of the map data in the region desired by the user It can be.
According to a third aspect of the present invention, the map data update notification device is a map data update notification method for a map data update notification device for notifying the user of the map display device of the update of the map data. The data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and when the map data including the new road is stored in the map database storing the map data, The road density of the area where the new road exists is obtained from the road density database in which the road density is stored, and the size of the predetermined area including the point on the new road is changed according to the obtained road density. When the road density is low, the size of the predetermined area is larger than when the road density is high, and specified by the user stored in the storage means in the predetermined area If the location specified by the user is included in the specified area, the user is notified of the update of the map data. The user can be informed of the update of the map data of the area desired by the user.
According to a fourth aspect of the present invention, the map data update notification device is a map data update notification method for a map data update notification device for notifying the user of the map display device of the update of the map data. The data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and when the map data including the new road is stored in the map database storing the map data, The population density of the area where the new road exists is acquired from the population density database in which the population density of is stored, and the size of the predetermined area including the point on the new road is changed according to the acquired population density When the population density is low, the size of the predetermined area is larger than when the population density is high, and specified by the user stored in the storage means in the predetermined area If the location specified by the user is included in the specified area, the user is notified of the update of the map data. The user can be informed of the update of the map data of the area desired by the user.
According to a fifth aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and the map includes a new road in the map database. When the data is stored, the size of the predetermined area including the new road is changed according to the width of the new road, and when the width of the new road is large, the width of the new road is smaller than when the width of the new road is small. The size of the predetermined area including the road is increased, and it is searched whether or not the point designated by the user stored in the storage means is included in the predetermined area including the new road, and the predetermined area including the new road When the area specified by the user is included in the area, the map data update is notified to the user, so the map data of the region desired by the user is sent to the user who wishes to update the map data It is possible to guide the update.
Further, as in the invention described in claim 6, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and newly adds it to the map database storing the map data. When map data including a certain road is stored, the number of lanes on the new road is large so that the size of the predetermined area including the point on the new road is changed according to the number of lanes on the new road Searches for whether or not the point designated by the user stored in the storage means is included in the predetermined area, by increasing the size of the predetermined area, compared to the case where the number of lanes on the new road is small. When the area specified by the user is included in the area, the map data update is notified to the user, so that the map data of the region desired by the user is sent to the user who wants to notify the map data update. It is possible to guide the other updates.
According to a seventh aspect of the present invention, in the map data update notification device, the map data update notification device stores the location information of the point designated by the user of the map display device in the storage means, and the map data When map data including a new road is stored in the map database that stores information, the size of a predetermined area including a point on the new road is changed according to the type of road connected to the new road. Thus, when the type of road connected to the new road is an expressway or a national road, the size of the predetermined area is set larger than the case where the type of road connected to the new road is a municipal road. If the point specified by the user stored in the storage means is included and if the point specified by the user is included in the predetermined area, the map data is updated to the user. Since the notification of, to use who wish to update notification of map data, the user is able to guide the update of the map data of the area that you want.
Further, as in the invention described in claim 8, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and newly adds it to the map database storing the map data. When the map data including the road is stored, the new road is changed so that the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the type of the new road. If the type of the road is an expressway or a national road, the size of the predetermined area is made larger than if the new road type is a municipal road, and whether or not a point on the new road is included in the predetermined area. If a point on the new road is included in the specified area, the map data update is notified to the user, so the user who wants the map data update notification is notified to the user It is possible to guide the update of the data.
According to a ninth aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and the map data update notification device is newly added to the map database storing the map data. When map data including a road is stored and map data including a new road is stored in the map database, it is designated by the user stored in the storage means according to the structure of the new road. If the structure of the new road is a bridge or a tunnel so that the size of the predetermined area including the spot is changed, the size of the predetermined area is increased and the point on the new road is included in the predetermined area. If a point on a new road is included in the specified area, the map data update is notified to the user, so the user is requested to update the map data. To use the user, the user is able to guide the update of the map data of the area that you want.
Further, as in the invention described in claim 10, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and is newly added to the map database storing the map data. When the map data including the roads is stored, the road density of the area where the new road exists is acquired from the road density database in which the road density of each place is stored, and the storage means is stored according to the acquired road density. When the road density is low so that the size of the predetermined area including the point specified by the stored user is changed, the size of the predetermined area is larger than the case where the road density is high. If a point on the new road is included in the predetermined area, the user is notified of the map data update. To a user who has a desire for update notification of the data, the user is able to guide the update of the map data of the area that you want.
According to the eleventh aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and adds the new information to the map database storing the map data. When the map data including roads is stored, the population density of the area where the new road exists is acquired from the population density database storing the population density of each place, and the storage means is stored in accordance with the acquired population density. When the population density is low so that the size of the predetermined area including the point specified by the stored user is changed, the size of the predetermined area is larger than the case where the population density is high. If a point on the new road is included in the predetermined area, the user is notified of the map data update. To a user who has a desire for update notification of the data, the user is able to guide the update of the map data of the area that you want.
According to a twelfth aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and newly adds it to the map database storing the map data. When the map data including the road is stored, the new road is changed so that the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the width of the new road. When the width of the new road is large, the size of the predetermined area is made larger than when the width of the new road is small, and whether or not a point on the new road is included in the predetermined area is searched. If a point on the new road is included, the map data update notification is sent to the user, so that the user who wants the map data update notification will update the map data in the region desired by the user. It can be guided to.
According to a thirteenth aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and the map data update notification device is newly added to the map database storing the map data. New map so that the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the number of lanes of the new road. When the number of lanes on the road is large, the size of the predetermined area is made larger than when the number of lanes on the new road is small, and whether or not a point on the new road is included in the predetermined area is searched. When a point on a new road is included in the specified area, the map data update is notified to the user, so that the user who wishes to receive the map data update is notified of the map data of the region desired by the user. New can be guided.
According to a fourteenth aspect of the present invention, the map data update notification device stores the position information of the point designated by the user of the map display device in the storage means, and adds the new information to the map database storing the map data. When the map data including the road is stored, the size of the predetermined area including the point designated by the user stored in the storage means is changed according to the type of the road connected to the new road. Thus, when the type of road connected to the new road is an expressway or a national road, the size of the predetermined area is set larger than the case where the type of road connected to the new road is a municipal road. If a point on the new road is included in the specified area and the point on the new road is included in the predetermined area, the user is notified of the update of the map data. To a user who wants to be notified, the user is able to guide the update of the map data of the area that you want.

（第１実施形態）
本発明の第１実施形態に係る地図データ更新通知装置のブロック構成を図１に示す。この地図データ更新通知装置１は、地図データ更新通知サーバによって構成され、ナビゲーション装置の利用者に対して、ナビゲーション装置の地図データが更新されたことを通知するための情報を電子メールで配信するものである。この地図データ更新通知装置１としては、例えばパーソナルコンピュータやワークステーションといったコンピュータが用いられる。 (First embodiment)
FIG. 1 shows a block configuration of the map data update notification device according to the first embodiment of the present invention. This map data update notification device 1 is constituted by a map data update notification server, and distributes information for notifying the user of the navigation device that the map data of the navigation device has been updated by e-mail. It is. For example, a computer such as a personal computer or a workstation is used as the map data update notification device 1.

地図データ更新通知装置１は、ハードディスク等の記憶媒体を備え、この記憶媒体には後述する地図データ更新通知方法を実行するプログラムが格納されている。このプログラムは、ＣＤ−ＲＯＭ、ＤＶＤ−ＲＯＭ等の記録媒体から地図データ更新通知装置１に備えられた記憶媒体にインストールされる。また、地図データ更新通知装置１は、通信ネットワークを介して電子メールの送受信ができるようになっている。 The map data update notification device 1 includes a storage medium such as a hard disk, and stores a program for executing a map data update notification method described later. This program is installed on a storage medium provided in the map data update notification device 1 from a recording medium such as a CD-ROM or a DVD-ROM. In addition, the map data update notification device 1 is capable of sending and receiving electronic mail via a communication network.

ナビゲーション装置の利用者は、この地図データ更新通知装置１から送信される電子メールを、情報端末（パーソナルコンピュータ、携帯電話、ＰＨＳ、ＰＤＡ、ナビゲーション装置など）を用いて受信することができる。 The user of the navigation device can receive an electronic mail transmitted from the map data update notification device 1 using an information terminal (personal computer, mobile phone, PHS, PDA, navigation device, etc.).

地図データ更新通知装置１は、新規開通道路地図生成手段１０、新規道路地図データベース（図中では新規道路地図データと記す）１１、利用者情報登録手段１２、利用者登録情報データベース１３、人口密度データベース１４、道路密度データベース１５、半径算出手段１６、２点間距離算出手段１７、電子メール配信手段１８を備えている。なお、人口密度データベース１４は、位置と人口密度との関係がデータベースとして記憶されたもので、図中では位置−人口密度データと記し、道路密度データベース１５は、位置と道路密度との関係がデータベースとして記憶されたもので、図中では位置−道路密度データと記す。 The map data update notification device 1 includes a new opening road map generation means 10, a new road map database (denoted as new road map data in the figure) 11, a user information registration means 12, a user registration information database 13, and a population density database. 14, a road density database 15, a radius calculation unit 16, a distance calculation unit 17 between two points, and an electronic mail distribution unit 18. The population density database 14 stores the relationship between the position and the population density as a database. In the figure, the relationship is shown as position-population density data. The road density database 15 has a relationship between the position and the road density. In the figure, it is described as position-road density data.

新規開通道路地図生成手段１０は、新規に開通した新規道路（橋、トンネル等の構造物を含む）を含む地図を生成するためのもので、具体的には地図を生成するためのプログラムによって構成される。地図データ販売事業者は、このプログラムを用いてナビゲーション装置で用いられる新規道路の地図を生成する。 The newly opened road map generating means 10 is for generating a map including a newly opened new road (including structures such as bridges, tunnels, etc.), and specifically comprises a program for generating a map. Is done. The map data sales company uses this program to generate a map of a new road used in the navigation device.

新規道路地図データベース１１は、新規開通道路地図生成手段１０によって生成された新規道路の地図データを記憶する地図データベースである。この新規道路地図データベース１１には、新規道路の形状の特徴を示す位置情報、道路種別（高速道路、国道、都道府県道、市町村道など）、道路の構造（橋、トンネル、取り付け道など）、道路の幅員、道路の車線数、道路の区間長、道路に接続される接続道路の種別（高速道路、国道、都道府県道、市町村道など）などが記憶される。 The new road map database 11 is a map database that stores map data of new roads generated by the new opening road map generation means 10. The new road map database 11 includes position information indicating the characteristics of the shape of the new road, road type (highway, national road, prefectural road, municipal road, etc.), road structure (bridge, tunnel, attachment road, etc.), The width of the road, the number of lanes of the road, the section length of the road, the type of connection road connected to the road (highway, national road, prefectural road, municipal road, etc.), etc. are stored.

利用者情報登録手段１２は、地図データの更新通知を希望するナビゲーション装置の利用者（顧客）に関する利用者情報を登録するためのもので、具体的には利用者情報を登録するためのプログラムによって構成される。この利用者情報登録手段１２によって登録される利用者情報には、図２に示すように、各顧客の名称、メールアドレス、各顧客によって指定される地点を示す指定位置座標（緯度、経度）が含まれる。なお、この顧客によって指定される地点は、利用者の希望によって任意に指定されるもので、例えば、利用者の居住地、職場などが考えられる。 The user information registering means 12 is for registering user information related to the user (customer) of the navigation apparatus that wishes to update the map data. Specifically, the user information registering means 12 is a program for registering user information. Composed. As shown in FIG. 2, the user information registered by the user information registering means 12 includes each customer's name, e-mail address, and designated position coordinates (latitude and longitude) indicating a point designated by each customer. included. In addition, the point designated by this customer is arbitrarily designated by a user's request, for example, a user's residence, a workplace, etc. can be considered.

利用者登録情報データベース１３は、利用者情報登録手段１２によって登録された利用者情報がデータベースとして記憶されたものである。この利用者登録情報データベース１３には、利用者情報登録手段１２から入力される利用者情報が随時蓄積される。 The user registration information database 13 stores the user information registered by the user information registration means 12 as a database. In the user registration information database 13, user information input from the user information registration unit 12 is accumulated at any time.

人口密度データベース１４は、地域毎の単位面積あたりの人口（人口密度）がデータベースとして記憶されたもので、道路密度データベース１５は、地域毎の単位面積あたりの道路の数（道路密度）がデータベースとして記憶されたものである。なお、本実施形態における人口密度データベース１４および道路密度データベース１５には、それぞれ行政単位で人口密度および道路密度が記憶されている。 The population density database 14 stores the population per unit area (population density) for each region as a database, and the road density database 15 uses the number of roads per unit area (road density) for each region as a database. It is remembered. Note that the population density database 14 and the road density database 15 in the present embodiment store population density and road density in administrative units, respectively.

半径算出手段１４は、新規道路地図データベース１１に新規開通道路の地図データが記憶された場合、新規道路地図データベース１１に記憶された新規開通道路の道路種別、道路の構造、道路の区間長、道路の幅員、道路の車線数、道路に接続される接続道路の種別、人口密度データベース１４に記憶された人口密度および道路密度データベース１５に記憶された道路密度などの各種パラメータを基に、予め定められた数式を用いて所定半径Ｑを算出する半径算出処理を行う。なお、この半径算出処理については後で詳細に説明する。 When the map data of the newly opened road is stored in the new road map database 11, the radius calculating means 14 stores the road type, road structure, road section length, road length of the newly opened road stored in the new road map database 11. , The number of road lanes, the type of connected road connected to the road, the population density stored in the population density database 14 and the various parameters such as the road density stored in the road density database 15. The radius calculation process for calculating the predetermined radius Q is performed using the above mathematical formula. The radius calculation process will be described later in detail.

２点間距離算出手段１７は、利用者登録情報データベース１３に記憶された利用者情報に含まれる指定位置座標および新規道路地図データベース１１に記憶された新規道路地図データベース１１に含まれる新規開通道路の形状の特徴を示す形状点（特徴座標）に基づいて、利用者によって指定された地点と新規開通道路上の地点との２点間の直線距離を算出する。 The point-to-point distance calculation means 17 includes the designated position coordinates included in the user information stored in the user registration information database 13 and the newly opened road included in the new road map database 11 stored in the new road map database 11. Based on the shape point (feature coordinates) indicating the feature of the shape, a linear distance between the two points between the point designated by the user and the point on the newly opened road is calculated.

電子メール配信手段１８は、２点間距離算出手段１７によって算出された２点間の直線距離と半径算出手段１４によって算出された所定半径Ｑに基づいて、利用者によって指定された地点（指定位置座標）と新規開通道路上の地点との２点間の距離が所定半径Ｑ未満か否かを判定し、２点間の直線距離が所定半径Ｑ未満であると判定した場合、指定位置座標を指定した利用者に地図データの更新を通知するメール配信する処理を行う。 The e-mail distribution unit 18 uses a point (designated position) designated by the user based on the straight line distance between the two points calculated by the point-to-point distance calculation unit 17 and the predetermined radius Q calculated by the radius calculation unit 14. If the distance between the two points between the coordinates) and the point on the newly opened road is less than the predetermined radius Q, and if it is determined that the linear distance between the two points is less than the predetermined radius Q, the designated position coordinates are Performs mail delivery processing to notify the specified user of map data update.

次に、図３を参照して、地図データ更新通知装置１によるメール配信処理について説明する。地図データ更新通知装置１は、新規道路地図データベース１１に新規開通道路の地図データが記憶された場合、図３に示すメール配信処理を開始する。Ｓ１００およびＳ１０２〜Ｓ１０６は２点間距離算出手段１７の処理、Ｓ２００は半径算出手段１６の処理、Ｓ１０８〜Ｓ１１６は電子メール配信手段１８の処理を示すものである。 Next, the mail delivery process by the map data update notification device 1 will be described with reference to FIG. When the map data of the newly opened road is stored in the new road map database 11, the map data update notification device 1 starts the mail delivery process shown in FIG. S100 and S102 to S106 indicate processing of the distance calculation means 17 between two points, S200 indicates processing of the radius calculation means 16, and S108 to S116 indicate processing of the e-mail distribution means 18.

まず、２点間距離算出手段１７は、新規道路地図データベース１１に記憶された新規開通道路の形状の特徴を示す位置情報に基づいて新規道路上の複数の形状点（特徴座標）を求め、これらの形状点の中から１つの形状点を抽出する（Ｓ１００）。例えば、図４に示すような新規道路の場合、新規道路の一端を形状点ａ、新規道路の他端を形状点ｉ、形状点ａを中心とした半径Ｑの円と道路の交点を形状点ｂ、形状点ｂを中心とした半径Ｑの円と道路の交点を形状点ｃ、…、形状点ｇを中心とした半径Ｑの円と道路の交点を形状点形状点ｈとし、これらの各形状点ａ〜ｉの中から特定の形状点を１つ抽出する。ここでは、形状点ａを抽出するものとして説明する。 First, the point-to-point distance calculation means 17 obtains a plurality of shape points (feature coordinates) on the new road based on the position information indicating the feature of the shape of the newly opened road stored in the new road map database 11. One shape point is extracted from the shape points (S100). For example, in the case of a new road as shown in FIG. 4, one end of the new road is a shape point a, the other end of the new road is a shape point i, a circle with a radius Q centering on the shape point a and the intersection of the road is a shape point. b, the intersection of a circle with a radius Q centering on the shape point b and the road is a shape point c,..., and the intersection of the circle with a radius Q centering on the shape point g and the road is a shape point shape point h. One specific shape point is extracted from the shape points a to i. Here, description will be made assuming that the shape point a is extracted.

次に、半径算出手段１４は、所定半径Ｑを算出する半径算出処理を行う（Ｓ１００）。この半径算出手段１４による半径算出処理について、図５に示すフローチャートを参照して説明する。 Next, the radius calculation means 14 performs a radius calculation process for calculating the predetermined radius Q (S100). The radius calculation process by the radius calculation means 14 will be described with reference to the flowchart shown in FIG.

まず、新規道路地図データベース１１から新規道路の形状点ａの位置情報を取得する（Ｓ２０２）。 First, the position information of the shape point a of the new road is acquired from the new road map database 11 (S202).

次に、人口密度データベース１４を参照し、新規の道路が位置する地域（行政）の人口密度を取得し、取得した人口密度に応じた人口密度係数ｋ１を算出する（Ｓ２０４）。新規の道路が位置する地域の人口密度が低い場合には人口密度係数ｋ１が大きくなるように、また、新規の道路が位置する地域の人口密度が高い場合には人口密度係数ｋ１が小さくなるように算出する。また、新規の道路が複数の行政区域に跨るような場合には、複数の行政区域の最も人口密度の低い地域の人口密度に応じて人口密度係数ｋ１を算出する。 Next, with reference to the population density database 14, the population density of the area (administration) where the new road is located is obtained, and a population density coefficient k1 corresponding to the obtained population density is calculated (S204). The population density coefficient k1 is increased when the population density in the area where the new road is located is low, and the population density coefficient k1 is decreased when the population density in the area where the new road is located is high. To calculate. When a new road extends over a plurality of administrative districts, the population density coefficient k1 is calculated according to the population density of the lowest administrative density of the plurality of administrative districts.

次に、道路密度データベース１５を参照し、新規の道路が位置する地域の道路密度を取得し、取得した道路密度に応じた道路密度係数ｋ２を算出する（Ｓ２０６）。新規の道路が位置する地域の道路密度が低い場合には道路密度係数ｋ２が大きくなるように、また、新規の道路が位置する地域の道路密度が高い場合には道路密度係数ｋ２が小さくなるように算出する。 Next, the road density database 15 is referred to, the road density of the area where the new road is located is acquired, and the road density coefficient k2 corresponding to the acquired road density is calculated (S206). The road density coefficient k2 is increased when the road density in the area where the new road is located is low, and the road density coefficient k2 is decreased when the road density is high in the area where the new road is located. To calculate.

次に、新規道路地図データベース１１から新規道路の種別（高速道路、国道、都道府県道、市町村道など）を取得し、新規道路の種別に応じた種別係数ｋ３を算出する（Ｓ２０８）。新規道路の種別が利用者の利用頻度が高いと考えられる高速道路や国道の場合、種別係数ｋ３は大きくなるように、また、新規道路の種別が利用者の利用頻度が低いと考えられる市町村道の場合、種別係数ｋ３は小さくなるように算出する。 Next, a new road type (highway, national road, prefectural road, municipal road, etc.) is acquired from the new road map database 11, and a type coefficient k3 corresponding to the type of the new road is calculated (S208). If the new road type is an expressway or a national road that is considered to be frequently used by the user, the type coefficient k3 is increased, and the new road type is a municipal road that is considered to be less frequently used by the user. In this case, the type coefficient k3 is calculated to be small.

次に、新規道路地図データベース１１から新規道路の構造（橋、トンネル、取り付け道など）を取得し、新規道路の構造に応じた構造係数ｋ４を算出する（Ｓ２１０）。新規道路の構造が走行距離や走行時間に与える影響が大きい橋やトンネルの場合、構造係数ｋ４が大きくなるように算出する。 Next, the structure of the new road (bridge, tunnel, attachment road, etc.) is acquired from the new road map database 11, and the structure coefficient k4 corresponding to the structure of the new road is calculated (S210). In the case of bridges and tunnels where the influence of the new road structure on the travel distance and travel time is large, the structure factor k4 is calculated to be large.

次に、新規道路地図データベース１１から新規道路の幅員を取得し、新規道路の幅員に応じた幅員係数ｋ５を算出する（Ｓ２１２）。新規道路の幅員が大きい場合、利用者の利用頻度が高いと考えられるため幅員係数ｋ５が大きくなるように、また、新規道路の幅員が小さい場合、幅員係数ｋ４が小さくなるように算出する。 Next, the width of the new road is acquired from the new road map database 11, and the width coefficient k5 corresponding to the width of the new road is calculated (S212). When the width of the new road is large, it is considered that the use frequency of the user is high. Therefore, the width coefficient k5 is increased, and when the width of the new road is small, the width coefficient k4 is decreased.

次に、新規道路地図データベース１１から新規道路の車線数を取得し、新規道路の車線数に応じた車線数係数ｋ６を算出する（Ｓ２１４）。車線数の多い道路は利用頻度が高いと考えられるため車線数係数ｋ６は大きくなるように、また、車線数の少ない道路は幅員係数ｋ４が小さくなるように算出する。 Next, the number of lanes of the new road is acquired from the new road map database 11, and the lane number coefficient k6 corresponding to the number of lanes of the new road is calculated (S214). Since roads with a large number of lanes are considered to be frequently used, the lane number coefficient k6 is calculated to be large, and roads with a small number of lanes are calculated to have a small width coefficient k4.

次に、新規道路地図データベース１１から新規道路の区間長を取得し、新規道路の区間長に応じた区間長係数ｋ７を算出する（Ｓ２１６）。新規道路の区間長が長い場合、走行距離や走行時間に与える影響が大きいため、区間長係数ｋ７が大きくなるように、また、新規道路の区間長が短い場合には区間長係数ｋ７が小さくなるように算出する。 Next, the section length of the new road is acquired from the new road map database 11, and the section length coefficient k7 corresponding to the section length of the new road is calculated (S216). When the section length of the new road is long, the influence on the travel distance and travel time is large. Therefore, the section length coefficient k7 is increased. When the section length of the new road is short, the section length coefficient k7 is decreased. Calculate as follows.

次に、新規道路地図データベース１１から新規道路の両端に接続される接続道路の種別（高速道路、国道、都道府県道、市町村道など）を取得し、新規道路の両端に接続される接続道路の種別に応じた両端道路種別ｋ８を算出する（Ｓ２１８）。新規道路の両端に接続される接続道路の種別が利用者の利用頻度が高いと考えられる高速道路や国道の場合には、両端道路種別ｋ８が大きくなるように、新規道路の種別が利用者の利用頻度が低いと考えられる市町村道の場合には、両端道路種別ｋ８が小さくなるように算出する。 Next, the types of connecting roads connected to both ends of the new road (highways, national roads, prefectural roads, municipal roads, etc.) are acquired from the new road map database 11, and the connecting roads connected to both ends of the new road are obtained. The both-ends road type k8 corresponding to the type is calculated (S218). In the case of an expressway or a national road where the type of connection road connected to both ends of the new road is considered to be frequently used by the user, the type of the new road is the user's type so that the both-end road type k8 increases. In the case of a municipal road that is considered to be less frequently used, calculation is performed so that the both-end road type k8 becomes smaller.

次に、Ｓ１０２〜Ｓ１１６で求めた各係数ｋ１〜ｋ８を用いて、以下の数式１により半径Ｑを算出する（Ｓ２２０）。 Next, using each coefficient k1 to k8 obtained in S102 to S116, the radius Q is calculated by the following formula 1 (S220).

（数１）
半径Ｑ＝ｑ＊ｋ１＊ｋ２＊ｋ３＊ｋ４＊ｋ５＊ｋ６
ただし、ｑは予め定められたデフォルト半径である。 (Equation 1)
Radius Q = q * k1 * k2 * k3 * k4 * k5 * k6
Where q is a predetermined default radius.

このように、半径算出手段１４は、Ｓ２０２〜Ｓ２１６で求めた各係数ｋ１〜ｋ８を用いて半径Ｑを算出する。また、半径Ｑは各係数ｋ１〜ｋ８に応じて変化し、各係数ｋ１〜ｋ８の値が大きいほど半径Ｑは大きくなり、各係数ｋ１〜ｋ８の値が小さいほど半径Ｑは小さくなる。 As described above, the radius calculation unit 14 calculates the radius Q using the coefficients k1 to k8 obtained in S202 to S216. The radius Q changes according to the coefficients k1 to k8. The larger the values of the coefficients k1 to k8, the larger the radius Q becomes. The smaller the values of the coefficients k1 to k8, the smaller the radius Q becomes.

図３の説明に戻り、次に、利用者登録情報データベース１３から利用者によって指定された地点の指定位置座標を１件読み込む（Ｓ１０２）。図２に示したように、利用者登録情報データベース１３に顧客Ａ、顧客Ｂ、顧客Ｃの利用者情報が登録されている場合、例えば、顧客Ａによって指定された地点の指定位置座標を１件読み込む。 Returning to the description of FIG. 3, next, one designated position coordinate of the point designated by the user is read from the user registration information database 13 (S <b> 102). As shown in FIG. 2, when the user information of the customer A, the customer B, and the customer C is registered in the user registration information database 13, for example, one specified position coordinate of the point specified by the customer A Read.

次に、顧客Ａのメールアドレスが後述する配信メールリストに登録されているか否かを判定する（Ｓ１０４）。 Next, it is determined whether the mail address of the customer A is registered in a distribution mail list described later (S104).

配信メールリストに何も登録されていない場合、Ｓ１０４の判定はＮＯとなり、次に、Ｓ１００において抽出した新規道路形状座標によって示される地点（ここでは形状点ａ）とＳ１０２において読み込んだ顧客Ａによって指定された地点の指定位置座標によって特定される地点との２点間の直線距離を算出する（Ｓ１０６）。 If nothing is registered in the distribution mail list, the determination in S104 is NO, and then the point indicated by the new road shape coordinates extracted in S100 (here, the shape point a) and the customer A read in S102 are designated. A straight-line distance between the two points with the point specified by the designated position coordinates of the determined point is calculated (S106).

次に、算出した２点間の直線距離がＳ２００で算出した半径Ｑ未満か否かを判定する（Ｓ１０８）。 Next, it is determined whether or not the calculated linear distance between the two points is less than the radius Q calculated in S200 (S108).

ここで、２点間の距離が半径Ｑ未満の場合、Ｓ１０８の判定がＹＥＳとなり、顧客Ａのメールアドレスを地図データの更新通知を配信するための配信メールリストに登録し（Ｓ１１０）、Ｓ１１２へ進む。 Here, when the distance between the two points is less than the radius Q, the determination in S108 is YES, and the mail address of the customer A is registered in the distribution mail list for distributing the map data update notification (S110), and the process proceeds to S112. move on.

また、２点間の直線距離が半径Ｑ以上の場合、Ｓ１０８の判定がＮＯとなり、Ｓ１１２へ進む。 If the linear distance between the two points is greater than or equal to the radius Q, the determination in S108 is NO and the process proceeds to S112.

このように、２点間の距離が半径Ｑ未満の場合、顧客Ａのメールアドレスを配信メールリストに登録し、２点間の直線距離が半径Ｑ以上の場合、配信メールリストへのメールアドレスの登録は行わない。 Thus, when the distance between the two points is less than the radius Q, the mail address of the customer A is registered in the distribution mail list, and when the straight line distance between the two points is the radius Q or more, the mail address to the distribution mail list is Do not register.

Ｓ１１２では、利用者登録情報データベース１３に、まだ他の利用者情報があるか否かを判定する（Ｓ１１２）。例えば、利用者登録情報データベース１３に、顧客Ａの利用者情報の他に、顧客Ｂ、顧客Ｃの利用者情報がある場合、顧客Ｂ、顧客Ｃの利用者情報に対し、それぞれＳ１０２〜Ｓ１１２の処理を繰り返す。このように、利用者登録情報データベース１３に記憶されている全ての顧客の利用者情報に対して、Ｓ１０２〜Ｓ１１２の処理を順次繰り返す。 In S112, it is determined whether there is still other user information in the user registration information database 13 (S112). For example, when the user registration information database 13 includes user information of the customer B and the customer C in addition to the user information of the customer A, the user information of the customer B and the customer C is respectively in S102 to S112. Repeat the process. In this way, the processing of S102 to S112 is sequentially repeated for all customer user information stored in the user registration information database 13.

利用者登録情報データベース１３に記憶されている全ての利用者情報に対して、Ｓ１０２〜Ｓ１１２の処理を繰り返すと、Ｓ１１２の判定がＮＯとなり、Ｓ１１４へ進む。 If the processes in S102 to S112 are repeated for all user information stored in the user registration information database 13, the determination in S112 becomes NO and the process proceeds to S114.

Ｓ１１４では、まだ他に新規道路の形状点データがあるか否かを判定する（Ｓ１１４）。ここで、まだ他に新規道路の形状点データがある場合、Ｓ１１４の判定がＹＥＳとなり、新規道路の他の形状点に対してＳ１００〜Ｓ１１４の処理を繰り返す。例えば、図４に示した新規道路のように形状点ａ〜ｉがある場合、形状点ｂ〜ｉに対して順次Ｓ１００〜Ｓ１１４の処理を繰り返す。 In S114, it is determined whether there is still another shape point data of the new road (S114). If there is still another shape point data of the new road, the determination in S114 is YES, and the processing of S100 to S114 is repeated for the other shape points of the new road. For example, when there are the shape points a to i as in the new road shown in FIG. 4, the processes of S100 to S114 are sequentially repeated for the shape points b to i.

このように、新規道路の全ての形状点に対してＳ１００〜Ｓ１１４の処理を繰り返し行うことにより、図４に示すような新規道路上の各形状点を中心とする半径Ｑの各円形領域内に利用者登録情報データベース１３に記憶されている利用者によって指定された地点が含まれるか否かを検索する。これにより、各円形領域内の地点を指定した利用者のメールアドレスが配信メールリストに追加され、各円形領域外の地点を指定した利用者のメールアドレスは配信メールリストに追加されない。 In this way, by repeatedly performing the processing of S100 to S114 on all the shape points on the new road, each shape area on the new road as shown in FIG. It is searched whether or not the point designated by the user stored in the user registration information database 13 is included. As a result, the mail address of the user who specified a point in each circular area is added to the distribution mail list, and the mail address of the user who specified a point outside each circular area is not added to the distribution mail list.

新規道路の全ての形状点データに対してＳ１００〜Ｓ１１４の処理を繰り返すと、Ｓ１１４の判定がＮＯとなり、配信メールリストに登録されたメールアドレスを宛先として地図データの更新を通知するためのメール配信を行い（Ｓ１１６）、本処理を終了する。 If the processing of S100 to S114 is repeated for all the shape point data of the new road, the determination of S114 becomes NO, and mail delivery for notifying the update of map data with the mail address registered in the delivery mail list as the destination (S116), and this process is terminated.

上記したように、新規道路地図データベース１１に新規の道路を含む地図データが登録されたときに、新規の道路上の形状点ａ〜ｉを中心とした半径Ｑの各円形領域内に利用者登録情報データベース１３に記憶された利用者によって指定された地点が含まれるか否かを検索し、各円形領域に利用者によって指定された地点が含まれる場合、各円形領域内に含まれる地点を指定した利用者に地図データの更新の案内を送信するから、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。 As described above, when map data including a new road is registered in the new road map database 11, a user is registered in each circular area having a radius Q centered on the shape points a to i on the new road. It is searched whether or not a point designated by the user stored in the information database 13 is included. If each circular region includes a point designated by the user, a point included in each circular region is designated. Since the map data update guide is transmitted to the user, the user who wishes to receive the map data update notification can be informed of the update of the map data in the region desired by the user.

また、半径Ｑは、新規の道路が位置する地域の人口密度、新規の道路が位置する地域の道路密度、新規道路の種別、新規道路の構造、新規道路の幅員、新規道路の車線数、新規道路の区間長、新規道路に接続される接続道路の種別に応じて変化し、これにより、地図データの更新の案内を送信する範囲が調整されるので、その案内を必要としていると考えられる利用者のみに地図データの更新の案内を送信することができる。 The radius Q is the population density of the area where the new road is located, the road density of the area where the new road is located, the type of the new road, the structure of the new road, the width of the new road, the number of lanes of the new road, It changes according to the section length of the road and the type of connecting road connected to the new road, and this adjusts the range for sending the map data update guidance. An update guide for map data can be sent only to the user.

例えば、利用者によって指定された地点から遠く離れた場所に市町村道が開通しても地図データの更新の案内を送信しないが、この市町村道よりも遠く離れた場所に高速道路や有料道路が開通した場合には、地図データの更新の案内を送信するといったことが可能である。 For example, even if a municipal road is opened far away from a point specified by the user, the map data update guidance is not sent, but an expressway or toll road is opened farther than this municipal road. In such a case, it is possible to transmit a guide for updating the map data.

なお、本実施形態では、図４に示したように新規道路上の半径Ｑ毎に形状点ａ〜ｉを設ける例を示したが、このような形状点の設け方に限られるものではなく、例えば、新規道路の一端、他端、中間点の３点といったように、任意に形状点を設けることができる。 In the present embodiment, as shown in FIG. 4, an example is shown in which the shape points a to i are provided for each radius Q on the new road. However, the present invention is not limited to the method of providing such shape points. For example, shape points can be arbitrarily provided such as three points of one end, the other end, and an intermediate point of a new road.

また、本実施形態では、図４に示したように、新規道路上の各形状点を中心とした円形領域に利用者が指定した地点が含まれるか否かを判定する例を示したが、例えば、新規道路上の各形状点を中心とした矩形領域に利用者が指定した地点が含まれるか否かを判定してもよい。この場合、矩形領域の大きさを、新規の道路が位置する地域の人口密度、新規の道路が位置する地域の道路密度、新規道路の種別、新規道路の構造、新規道路の幅員、新規道路の車線数、新規道路の区間長、新規道路に接続される接続道路の種別に応じて変化させてもよい。なお、矩形は正方形または長方形を意味し、矩形の中心は矩形の２つの対角線の交点を意味する。 In the present embodiment, as shown in FIG. 4, an example is shown in which it is determined whether or not a point designated by the user is included in a circular area centered on each shape point on the new road. For example, it may be determined whether or not a point designated by the user is included in a rectangular area centered on each shape point on the new road. In this case, the size of the rectangular area is defined as the population density of the area where the new road is located, the road density of the area where the new road is located, the type of the new road, the structure of the new road, the width of the new road, It may be changed according to the number of lanes, the section length of the new road, and the type of connection road connected to the new road. Note that the rectangle means a square or a rectangle, and the center of the rectangle means the intersection of two diagonal lines of the rectangle.

（第２実施形態）
次に、第２の実施形態に係る地図データ更新通知サーバについて説明する。本実施形態に係る地図データ更新通知サーバの構成は、図１に示した地図データ更新通知サーバと同じ構成であるため説明を省略する。第１実施形態では、図５に示したように、新規道路上の複数地点（形状点）を基準とした所定半径内に利用者によって指定された指定位置座標が含まれるか否かを判定する例を示したが、本実施形態では、利用者によって指定された指定位置座標を中心とした所定半径の領域内に新規の道路上の形状点が含まれるか否かを判定する。 (Second Embodiment)
Next, a map data update notification server according to the second embodiment will be described. The configuration of the map data update notification server according to the present embodiment is the same as that of the map data update notification server shown in FIG. In the first embodiment, as shown in FIG. 5, it is determined whether or not the designated position coordinates designated by the user are included within a predetermined radius based on a plurality of points (shape points) on the new road. Although an example is shown, in the present embodiment, it is determined whether or not a shape point on a new road is included in an area having a predetermined radius centered on a specified position coordinate specified by a user.

次に、図６を参照して、本実施形態の地図データ更新通知装置１によるメール配信処理について説明する。地図データ更新通知装置１は、新規道路地図データベース１１に新規開通道路の地図データが記憶されると、図６に示すメール配信処理を開始する。 Next, with reference to FIG. 6, the mail delivery process by the map data update notification apparatus 1 of this embodiment is demonstrated. When the map data of the newly opened road is stored in the new road map database 11, the map data update notification device 1 starts the mail distribution process shown in FIG.

まず、利用者登録情報データベース１３から利用者によって指定された地点の指定位置座標を１件読み込む（Ｓ４００）。 First, one specified position coordinate of a point specified by the user is read from the user registration information database 13 (S400).

次に、半径算出手段１４による半径算出処理を行う（Ｓ５００）。この半径算出手段１４による半径算出処理について、図７に示すフローチャートを参照して説明する。 Next, radius calculation processing by the radius calculation means 14 is performed (S500). The radius calculation process by the radius calculation means 14 will be described with reference to the flowchart shown in FIG.

まず、利用者登録情報データベース１３から利用者によって指定された指定位置座標を取得する（Ｓ５０２）。 First, the designated position coordinates designated by the user are acquired from the user registration information database 13 (S502).

次に、行政単位毎の人口密度が記憶された人口密度データベース１４を参照し、利用者によって指定された指定位置座標によって特定される地点の行政区画の人口密度を取得し、取得した人口密度に応じた人口密度係数ｋ９を算出する（Ｓ５０４）。利用者によって指定された指定位置座標によって特定される地点の人口密度が低い場合には人口密度係数ｋ９が大きくなるように、また、利用者によって指定された指定位置座標によって特定される地点の人口密度が高い場合には人口密度係数ｋ９が小さくなるように算出する。 Next, with reference to the population density database 14 in which the population density for each administrative unit is stored, the population density of the administrative division at the point specified by the designated position coordinates designated by the user is obtained, and the obtained population density A corresponding population density coefficient k9 is calculated (S504). When the population density of the point specified by the designated position coordinates designated by the user is low, the population density coefficient k9 is increased, and the population of the point specified by the designated position coordinates designated by the user When the density is high, the population density coefficient k9 is calculated to be small.

次に、行政単位毎の道路密度が記憶された道路密度データベース１５を参照し、利用者によって指定された指定位置座標によって特定される地点の行政区画の道路密度を取得し、取得した道路密度に応じた道路密度係数ｋ１０を算出する（Ｓ５０６）。この道路密度係数ｋ１０も人口密度係数ｋ９と同様に、利用者によって指定された指定位置座標によって特定される地点の道路密度が低い場合には大きくなるように、また、利用者によって指定された指定位置座標によって特定される地点の道路密度が高い場合には小さくなるように算出する。 Next, with reference to the road density database 15 in which the road density for each administrative unit is stored, the road density of the administrative division of the point specified by the designated position coordinates designated by the user is obtained, and the obtained road density is obtained. A corresponding road density coefficient k10 is calculated (S506). Similarly to the population density coefficient k9, the road density coefficient k10 is increased when the road density at the point specified by the specified position coordinates specified by the user is low, and is designated by the user. When the road density at the point specified by the position coordinates is high, the calculation is performed so as to decrease.

次に、Ｓ５０４、Ｓ５０６で求めた各係数ｋ９、ｋ１０を用いて、以下の数式２により半径Ｒを算出する（Ｓ５０８）。 Next, the radius R is calculated by the following formula 2 using the coefficients k9 and k10 obtained in S504 and S506 (S508).

（数２）
半径Ｒ＝ｒ＊ｋ９＊ｋ１０
ただし、ｒは予め定められたデフォルト半径である。 (Equation 2)
Radius R = r * k9 * k10
Here, r is a predetermined default radius.

このように、半径算出手段１４は、Ｓ５０４、Ｓ５０６で求めた各係数ｋ９、ｋ１０を用いて半径Ｒを算出する。このように、各係数ｋ１〜ｋ８に応じて半径Ｒは変化し、各係数ｋ１〜ｋ８の値が大きいほど半径Ｒは大きくなり、各係数ｋ１〜ｋ８の値が小さいほど半径Ｒは小さくなる。 As described above, the radius calculation unit 14 calculates the radius R using the coefficients k9 and k10 obtained in S504 and S506. Thus, the radius R changes according to the coefficients k1 to k8, and the radius R increases as the values of the coefficients k1 to k8 increase, and the radius R decreases as the values of the coefficients k1 to k8 decrease.

図６の説明に戻り、Ｓ６００では、第１実施形態における図３のＳ２００の処理と同様に、新規道路の形状点の１つを抽出する。 Returning to the description of FIG. 6, in S600, one of the shape points of the new road is extracted as in the process of S200 of FIG. 3 in the first embodiment.

次に、Ｓ４００で読み込んだ指定位置座標によって特定される地点とＳ６００において抽出した新規道路の形状点の１つとの間の２点間の直線距離を算出する（Ｓ６０２）。 Next, a linear distance between two points between the point specified by the designated position coordinates read in S400 and one of the shape points of the new road extracted in S600 is calculated (S602).

次に、算出した２点間の直線距離がＳ５００で算出した半径Ｒ未満か否かを判定する（Ｓ６０４）。 Next, it is determined whether or not the calculated linear distance between the two points is less than the radius R calculated in S500 (S604).

ここで、２点間の距離が半径Ｒ以上の場合、Ｓ６０４の判定がＮＯとなり、次に、Ｓ６００において抽出した形状点の他にまだ形状点データがあるか否かを判定する（Ｓ６０６）。 If the distance between the two points is equal to or greater than the radius R, the determination in S604 is NO, and then it is determined whether there is still shape point data in addition to the shape points extracted in S600 (S606).

ここで、Ｓ６００において抽出した形状点の他にまだ形状点データがある場合、Ｓ６０６の判定がＹＥＳとなり、他の全ての形状点に対してＳ６００〜Ｓ６０６の処理を繰り返す。 If there is still shape point data in addition to the shape points extracted in S600, the determination in S606 is YES, and the processing of S600 to S606 is repeated for all other shape points.

また、Ｓ６０４において、２点間の距離が半径Ｒ未満の場合、Ｓ６０４の判定がＹＥＳとなり、指定位置座標を指定した利用者のメールアドレスを地図データの更新通知を配信するためのメールリストに登録する（Ｓ６０７）。 In S604, when the distance between the two points is less than the radius R, the determination in S604 is YES, and the mail address of the user who has designated the designated position coordinates is registered in the mail list for delivering the map data update notification. (S607).

このように、２点間の直線距離が半径Ｒ未満の場合、指定位置座標を指定した利用者のメールアドレスを配信メールリストに登録し、２点間の距離が半径Ｒ以上の場合、配信メールアドレスへのメールアドレスの登録は行わない。 Thus, when the straight line distance between two points is less than the radius R, the mail address of the user who specified the specified position coordinates is registered in the distribution mail list, and when the distance between the two points is greater than the radius R, the distribution mail The e-mail address is not registered to the address.

新規道路の全ての形状点に対して、Ｓ６００〜Ｓ６０６の処理を順次繰り返すと、Ｓ６０６の判定がＮＯとなり、次に、利用者登録情報データベース１３に他の利用者のデータがあるか否かを判定する（Ｓ６０８）。具体的には、利用者登録情報データベース１３に他の利用者によって指定された指定位置座標が記憶されているか否かを判定する。 If the processing of S600 to S606 is sequentially repeated for all the shape points of the new road, the determination of S606 becomes NO, and then whether or not there is other user data in the user registration information database 13 is determined. Determination is made (S608). Specifically, it is determined whether or not designated position coordinates designated by other users are stored in the user registration information database 13.

ここで、利用者登録情報データベース１３にまだ他の利用者によって指定された指定位置座標が記憶されている場合、Ｓ６０８の判定がＹＥＳとなり、この指定位置座標に対してＳ６００〜Ｓ６０８の処理を行う。このように、利用者登録情報データベース１３に記憶されている全ての指定位置座標に対して、Ｓ６００〜Ｓ６０８の処理を順次繰り返す。 Here, when the designated position coordinates designated by another user are still stored in the user registration information database 13, the determination in S608 is YES, and the processes of S600 to S608 are performed on the designated position coordinates. . As described above, the processes of S600 to S608 are sequentially repeated for all the designated position coordinates stored in the user registration information database 13.

このように、新規道路の全ての形状点に対してＳ６００〜Ｓ６０８の処理を繰り返し行うことにより、図８に示すように、利用者によって指定された地点を中心とする半径Ｒの円形領域内に新規道路の形状点が含まれるか否かを検索する。これにより、各円形領域内の地点を指定した利用者のメールアドレスが配信メールリストに追加され、各円形領域外の地点を指定した利用者のメールアドレスは配信メールリストに追加されない。 In this way, by repeatedly performing the processing of S600 to S608 on all the shape points of the new road, as shown in FIG. 8, within the circular area having the radius R centered on the point designated by the user. Search whether the shape point of the new road is included. As a result, the mail address of the user who specified a point in each circular area is added to the distribution mail list, and the mail address of the user who specified a point outside each circular area is not added to the distribution mail list.

利用者登録情報データベース１３に記憶されている全ての指定位置座標に対して、Ｓ６００〜Ｓ６０８の処理を繰り返すと、Ｓ６１０の判定がＮＯとなり、メールリストに登録されたメールアドレスを宛先として地図データの更新を通知するためのメール配信を行い（Ｓ６１０）、本処理を終了する。 If the processing of S600 to S608 is repeated for all the specified position coordinates stored in the user registration information database 13, the determination in S610 becomes NO, and the mail address registered in the mail list is used as the destination of the map data. The mail delivery for notifying the update is performed (S610), and this process is terminated.

上記したように、新規道路地図データベース１１に新規の道路を含む地図データが登録されたときに、利用者登録情報データベース１３に記憶された利用者によって指定された地点を中心とした半径Ｒの円形領域内に新規道路地図データベース１１に記憶された新規の道路上の形状点が含まれるか否かを検索し、円形領域に新規の道路上の地点が含まれる場合、円形領域に含まれる地点を指定した利用者に地図データの更新の案内を送信するから、地図データの更新通知を希望する利用者に、利用者が希望する地域の地図データの更新を案内することができる。 As described above, when map data including a new road is registered in the new road map database 11, a circle having a radius R centered on the point specified by the user stored in the user registration information database 13. A search is performed as to whether or not a shape point on a new road stored in the new road map database 11 is included in the area. If a point on the new road is included in the circular area, the point included in the circular area is determined. Since the map data update guidance is transmitted to the designated user, it is possible to guide the user who desires the map data update notification to update the map data in the area desired by the user.

また、図８に示したように、利用者によって指定された地点を中心とする半径Ｒの円形領域内に新規道路の形状点が含まれるか否かを検索することによって、利用者によって指定された地点と新規の道路との間の距離が所定距離未満であるか否かを判定することができる。 In addition, as shown in FIG. 8, the user can specify the shape point of the new road by searching whether or not the shape point of the new road is included in the circular area having the radius R centered on the point specified by the user. It is possible to determine whether the distance between the new point and the new road is less than a predetermined distance.

なお、本実施形態では、図８に示したように、利用者によって指定された地点を中心とする所定半径Ｒの円形領域内に新規の道路上の形状点が含まれるか否かを判定する例を示したが、例えば、図９に示すように、利用者によって指定された指定位置座標によって特定される地点を中心とした矩形領域内に新規の道路上の形状点が含まれるか否かを判定してもよい。この場合、矩形領域の大きさを、利用者によって指定された指定位置座標によって特定される地点の行政区画の道路密度や利用者によって指定された指定位置座標によって特定される地点の行政区画の人口密度に応じて変化させてもよい。 In the present embodiment, as shown in FIG. 8, it is determined whether or not a shape point on a new road is included in a circular area having a predetermined radius R centered on a point designated by the user. Although an example has been shown, for example, as shown in FIG. 9, whether or not a shape point on a new road is included in a rectangular area centered on a point specified by a specified position coordinate specified by a user May be determined. In this case, the size of the rectangular area is determined by the road density of the administrative district specified by the specified location coordinates specified by the user or the population of the administrative district specified by the specified location coordinates specified by the user. You may change according to a density.

（他の実施形態）
なお、上記実施形態における構成と特許請求の範囲の構成との対応関係について説明すると、利用者登録情報データベース１３が記憶手段に相当し、新規道路地図データベース１１が地図データベースに相当し、図３のＳ１００〜Ｓ１１４の処理が利用者指定位置検索手段に相当し、図６のＳ４００〜６０８の処理が構成要素検索手段に相当し、図３のＳ１１６および図６のＳ６１０の処理が送信手段に相当する。 (Other embodiments)
The correspondence relationship between the configuration of the above embodiment and the configuration of the claims will be described. The user registration information database 13 corresponds to a storage unit, the new road map database 11 corresponds to a map database, and FIG. The processing of S100 to S114 corresponds to the user-specified position searching means, the processing of S400 to 608 in FIG. 6 corresponds to the constituent element searching means, and the processing of S116 in FIG. 3 and S610 in FIG. 6 corresponds to the transmitting means. .

本発明は上記実施形態に限定されるものではなく、本発明の趣旨に基づいて種々なる形態で実施することができる。 The present invention is not limited to the above embodiment, and can be implemented in various forms based on the gist of the present invention.

例えば、上記実施形態では、ナビゲーション装置の利用者に対して、ナビゲーション装置の地図データが更新されたことを通知する例を示したが、ナビゲーション装置に限定されることなく、例えば、地図表示装置の利用者に対して、地図表示装置の地図データが更新されたことを通知してもよい。 For example, in the above-described embodiment, an example of notifying the user of the navigation device that the map data of the navigation device has been updated has been shown. However, the present invention is not limited to the navigation device. The user may be notified that the map data of the map display device has been updated.

また、上記実施形態の新規開通道路地図生成手段１０によって生成される地図データは、新規の道路（橋、トンネルなどの構造物を含む）に限定されるものではなく、例えば、新規のショッピングセンター等の施設を含むものであってもよい。このように新規開通道路地図生成手段１０によって新規施設を含む地図データが新規道路地図データベース１１に新規施設を含む地図データが登録された場合、２点間距離算出手段１７は、利用者登録情報データベース１３に記憶された利用者情報に含まれる指定位置座標および新規道路地図データベース１１に含まれる新規施設の上の形状点に基づいて、利用者によって指定された地点と新規施設上の地点との２点間の直線距離を算出すればよい。なお、特許請求の範囲における新規の構成要素には、新規の道路（橋、トンネルなどの構造物を含む）および新規のショッピングセンターなどの施設などが含まれる。 Further, the map data generated by the newly opened road map generating means 10 of the above embodiment is not limited to new roads (including structures such as bridges and tunnels), for example, new shopping centers, etc. May be included. As described above, when the map data including the new facility is registered in the new road map database 11 by the new opening road map generation unit 10, the distance calculation unit 17 between the two points calculates the user registration information database. 2 of the point specified by the user and the point on the new facility based on the specified position coordinates included in the user information stored in 13 and the shape point on the new facility included in the new road map database 11 What is necessary is just to calculate the linear distance between points. Note that the new components in the claims include new roads (including structures such as bridges and tunnels), new shopping centers, and the like.

また、上記実施形態における地図データ更新通知装置１は、新規道路地図データベース１１に新規開通道路の地図データが記憶されたときに、図３または図６に示すメール配信処理を行う例を示したが、例えば、操作者によるメール配信の操作に応じてメール配信処理を行うようにしてもよく、また、定期的にメール配信処理を行うようにしてもよい。 Further, the map data update notification device 1 in the above embodiment has shown an example in which the mail delivery process shown in FIG. 3 or FIG. 6 is performed when the map data of the newly opened road is stored in the new road map database 11. For example, the mail delivery process may be performed in accordance with the mail delivery operation by the operator, or the mail delivery process may be performed periodically.

また、上記実施形態では行政単位毎に人口密度が記憶された人口密度データベースを用いて所定半径を変更させる例を示したが、例えば、メッシュ単位毎に人口密度が記憶された人口密度データベースを用いてもよい。 Moreover, although the example which changes a predetermined radius using the population density database in which the population density was memorize | stored for every administrative unit was shown in the said embodiment, for example, the population density database in which the population density was memorize | stored for every mesh unit was used. May be.

また、上記実施形態では行政単位毎に道路密度が記憶された道路密度データベースを用いて所定半径を変更させる例を示したが、例えば、メッシュ単位毎に道路密度が記憶された道路密度データベースを用いてもよい。 In the above embodiment, the predetermined radius is changed using the road density database in which the road density is stored for each administrative unit. For example, the road density database in which the road density is stored for each mesh unit is used. May be.

本発明の第１実施形態に係る地図データ更新通知サーバのブロック構成を示す図である。It is a figure which shows the block configuration of the map data update notification server which concerns on 1st Embodiment of this invention. 利用者情報登録手段に登録された利用者情報の一例を示す図である。It is a figure which shows an example of the user information registered into the user information registration means. 第１実施形態に係る地図データ更新通知サーバのメール配信処理を示す図である。It is a figure which shows the mail delivery process of the map data update notification server which concerns on 1st Embodiment. 新規道路の複数の形状点（特徴座標）の抽出についての説明図である。It is explanatory drawing about extraction of the some shape point (characteristic coordinate) of a new road. 第１実施形態に係る地図データ更新通知サーバの半径算出手段による半径算出処理を示す図である。It is a figure which shows the radius calculation process by the radius calculation means of the map data update notification server which concerns on 1st Embodiment. 第２実施形態に係る地図データ更新通知サーバのメール配信処理を示す図である。It is a figure which shows the mail delivery process of the map data update notification server which concerns on 2nd Embodiment. 第２実施形態に係る地図データ更新通知サーバの半径算出手段による半径算出処理を示す図である。It is a figure which shows the radius calculation process by the radius calculation means of the map data update notification server which concerns on 2nd Embodiment. 利用者によって指定された地点を中心とした円形領域内に新規の道路上の形状点が含まれる状態を示した説明図である。It is explanatory drawing which showed the state in which the shape point on a new road is contained in the circular area | region centering on the point designated by the user. 利用者によって指定された地点を中心とした矩形領域内に新規の道路上の形状点が含まれる状態を示した説明図である。It is explanatory drawing which showed the state in which the shape point on the new road is contained in the rectangular area centering on the point designated by the user.

Explanation of symbols

１…地図データ更新通知装置、１０…新規開通道路地図生成手段、
１１…新規道路地図データベース、１２…利用者情報登録手段、
１３…利用者登録情報データベース、１４…人口密度データベース、
１５…道路密度データベース、１６…半径算出手段、１７…２点間距離算出手段、
１８…電子メール配信手段。 DESCRIPTION OF SYMBOLS 1 ... Map data update notification apparatus, 10 ... New opening road map production | generation means,
11 ... New road map database, 12 ... User information registration means,
13 ... User registration information database, 14 ... Population density database,
15 ... road density database, 16 ... radius calculation means, 17 ... distance between two points calculation means,
18: E-mail delivery means.

Claims

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the new road type is a highway or a national road so that the size of a predetermined area including a point on the new road is changed according to the type of the new road, the type of the new road The size of the predetermined area is larger than in the case of municipal roads,
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the structure of the new road is a bridge or a tunnel, the size of the predetermined area is changed so that the size of the predetermined area including the point on the new road is changed according to the structure of the new road. Bigger,
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
The road density of the area where the new road exists is acquired from the road density database storing the road density of each place, and the size of the predetermined area including the point on the new road according to the acquired road density When the road density is low, the predetermined area is increased in size when the road density is high.
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
The population density of the area where the new road exists is acquired from the population density database storing the population density of each place, and the size of the predetermined area including the point on the new road according to the acquired population density When the population density is low, the predetermined area is made larger than the case where the population density is high.
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the width of the new road is large so that the size of the predetermined area including the point on the new road is changed according to the width of the new road, than when the width of the new road is small , Increase the size of the predetermined area,
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the number of lanes of the new road is large so that the size of the predetermined area including the point on the new road is changed according to the number of lanes of the new road, the number of lanes of the new road is Increase the size of the predetermined area than when there are few,
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
Depending on the type of road connected to the new road, the type of road connected to the new road is an expressway or a national road so that the size of a predetermined area including a point on the new road is changed. In the case of the above, the size of the predetermined area is made larger than the case where the type of road connected to the new road is a municipal road,
The search whether contains the specified point by the user stored in the storage means in a predetermined area,
Before Kisho if it contains the specified point by the user to a constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the type of the new road is an expressway or a national road so that the size of a predetermined area including the point designated by the user stored in the storage means is changed according to the type of the new road The size of the predetermined area is larger than when the type of the new road is a municipal road,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification device stores the location information of the point designated by the user of the map display device in a storage means,
When map data including a new road is stored in the map database storing the map data ,
When the structure of the new road is a bridge or a tunnel so as to change the size of a predetermined area including the point designated by the user stored in the storage means according to the structure of the new road , Increase the size of the predetermined area,
Search whether the point on the new road is included in the predetermined area,
A map data update notification method for notifying the user of an update of the map data when a point on the new road is included in the predetermined area.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
The road density of the area where the new road exists is acquired from the road density database in which the road density of each place is stored, and designated by the user stored in the storage means according to the acquired road density When the road density is low so as to change the size of the predetermined area including the point, the size of the predetermined area is increased than when the road density is high,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
The population density of the area where the new road exists is acquired from the population density database storing the population density of each place, and designated by the user stored in the storage means according to the acquired population density When the population density is low so as to change the size of the predetermined area including the point, the size of the predetermined area is increased than when the population density is high,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
If the width of the new road is large so that the size of a predetermined area including the point specified by the user stored in the storage means is changed according to the width of the new road, the new road Increase the size of the predetermined area than when the width of the road is small,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
When the number of lanes of the new road is large so as to change the size of the predetermined area including the point designated by the user stored in the storage means according to the number of lanes of the new road, Increase the size of the predetermined area than when the number of lanes on the new road is small,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

A map data update notification method for a map data update notification device for notifying a user of a map display device of update of map data,
The map data update notification apparatus, stores the position information of the earth points specified by the user of the map display device in the storage means,
In the case where the map data including the new road is stored in the map database that stores pre-Symbol map data,
Connected to the new road so as to change the size of a predetermined area including the point specified by the user stored in the storage means according to the type of road connected to the new road When the type of road is an expressway or a national road, the size of the predetermined area is made larger than when the type of road connected to the new road is a municipal road,
Wherein a predetermined area to search whether the contains a point on the new road,
Before Kisho if it contains a point on the new road to the constant area, the map data update notification method and notifies the updating of the map data to the user.

The map data update notification apparatus, when the map data including the new road to the map database is stored,
Wherein according to the type of new road, the map data update notification method according to any one of claims 2～7,9～14, wherein the benzalkonium changing the size of the given area.

When the map data update notification device stores map data including a new road in the map database,
Wherein depending on the structure of the new road, the map data update notification method according to any one of claims 1,3～8,10～1 4, characterized in that changing the size of the given area.

When the map data update notification device stores map data including a new road in the map database,
Obtain the road density of the area where the new road exists from the road density database storing the road density of each place,
The map data update notification method according to any one of claims 1, 2, 4 to 9 , and 11 to 14, wherein a size of the predetermined area is changed according to the road density.

When the map data update notification device stores map data including a new road in the map database,
The population density of the area where the new road exists is obtained from the population density database storing the population density of each place,
The map data update notification method according to any one of claims 1 to 3, 5 to 10 , and 12 to 14, wherein the size of the predetermined area is changed according to the population density.

When the map data update notification device stores map data including a new road in the map database,
The map data update notification according to any one of claims 1 to 4 , 6 to 11, and 13 to 14, wherein the size of the predetermined area is changed according to a width of the new road. Method.

When the map data update notification device stores map data including a new road in the map database,
In response to said number of lanes of the new road, the map data update notification method according to any one of claims 1～5,7～12,1 4, characterized in that changing the size of the given area .

When the map data update notification device stores map data including a new road in the map database,
Depending on the type of the road which is connected to the new road, the map data update according to any one of claims 1～6,8～1 3, characterized in that changing the size of the given area Notification method.

The map data update notification device updates the map data to the information terminal of the user separate from the map display device, with the e-mail address specified by the user stored in the storage means as a destination. The map data update notification method according to any one of claims 1 to 21 , wherein mail delivery for notification is performed.

The map data update notification method according to any one of claims 1 to 22, wherein the predetermined area is a circular or rectangular area centered on a point designated by the user.

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
The user-specified position search means changes the size of the predetermined area according to the type of the new road, and when the type of the new road is an expressway or a national road, The map data update notification device , wherein the predetermined area is made larger than the type of municipal road .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
The user-specified position searching means changes the size of the predetermined area according to the structure of the new road. When the structure of the new road is a bridge or a tunnel, the size of the predetermined area is changed. A map data update notification device characterized by increasing the size of the map data.

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
The user-designated position search means acquires a road density of an area where the new road exists from a road density database in which road density of each place is stored, and the size of the predetermined area is determined according to the acquired road density. The map data update notification device is characterized in that, when the road density is low, the size of the predetermined area is increased when the road density is low so as to change the height .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
The user-specified position search means obtains the population density of the area where the new road exists from a population density database in which the population density of each place is stored, and according to the obtained population density, the size of the predetermined area The map data update notification device is characterized in that, when the population density is low, the size of the predetermined area is increased when the population density is low so as to change the size .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
When the width of the new road is small and the width of the new road is small so that the user-specified position search means changes the size of the predetermined area according to the width of the new road Accordingly, the map data update notification device is characterized in that the size of the predetermined area is increased .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
When the number of lanes of the new road is large so that the user-specified position search means changes the size of the predetermined area according to the number of lanes of the new road, the number of lanes of the new road The map data update notification device is characterized in that the size of the predetermined area is increased as compared with a case where there is little .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road in the map database for storing map data used by the map display device is stored, is stored in the storage means a point on a road of the newly including plants constant area A user-specified position search means for searching whether or not the point specified by the user is included;
If the point designated by the previous SL user by the user-specified position search means it is searched, and a notification unit that notifies the updating of the map data to the user,
The user designated position search means is configured such that the type of road connected to the new road is a highway or the type of road so as to change the size of the predetermined area according to the type of road connected to the new road. In the case of a national road, the map data update notification device is characterized in that the size of the predetermined area is made larger than in the case where the type of road connected to the new road is a municipal road .

The map data update notification device according to any one of claims 25 to 30, wherein the user-specified position search means changes the size of the predetermined area according to the type of the new road. .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
When the new road type is an expressway or a national road, the road search means changes the size of the predetermined area according to the new road type. The map data update notification device , wherein the predetermined area is larger than a road .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
The road search means increases the size of the predetermined area when the structure of the new road is a bridge or a tunnel so that the size of the predetermined area is changed according to the structure of the new road. A map data update notification device.

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
The road search means acquires a road density of a region where the new road exists from a road density database in which road density of each place is stored, and changes a size of the predetermined area according to the acquired road density. The map data update notification device is characterized in that, when the road density is low, the size of the predetermined area is larger than when the road density is high .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
The road search means acquires a population density of an area where the new road exists from a population density database in which the population density of each place is stored, and changes the size of the predetermined area according to the acquired population density. The map data update notification device is characterized in that when the population density is low, the size of the predetermined area is made larger than when the population density is high .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
The road search means changes the size of the predetermined area according to the width of the new road, when the width of the new road is large, than when the width of the new road is small, A map data update notification device characterized by increasing the size of a predetermined area .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
The road search means, when the number of lanes of the new road is large, when the number of lanes of the new road is large, so that the size of the predetermined area is changed according to the number of lanes of the new road Accordingly, the map data update notification device is characterized in that the size of the predetermined area is increased .

A storage means for storing position information of the specified ground point by a user of the map displaying apparatus,
When the map data including the new road is stored in the map database that stores pre-Symbol map data Ru used in the map display device, a predetermined comprising point designated by the user stored in the storage means Road search means for searching whether or not a point on the new road is included in the area;
When the road by the search means before Symbol point on the new road has been searched, and a notification means for notifying the update of the map data to the user,
In the case where the type of road connected to the new road is a highway or a national road so that the size of the predetermined area is changed according to the type of road connected to the new road. The map data update notification device is characterized in that the predetermined area is made larger than the case where the type of road connected to the new road is a municipal road .

The map data update notification device according to any one of claims 33 to 38, wherein the road search means changes the size of the predetermined area according to the type of the new road.