JP2011038792A - Navigation system, terminal device, navigation server, and device and method for navigation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system, a terminal device, a navigation server and a device and a method for navigation which retrieve facilities around the area of a display screen, while making a detailed map displayed on the screen, make a display mode altered according to positional relations etc., and thereby make intelligible guide information about the facilities displayed. <P>SOLUTION: Display area information about a display area of a map display screen displayed in a display part is acquired, and facility information on the facilities present in a prescribed area around a prescribed point on the map based on the map data based on the display area information is retrieved and acquired as the result of the facility information retrieval. The facilities present outside the display area of the map display screen are extracted from the result of the facility information retrieval, and outside-screen facility guide information is generated by altering the display mode according to the positional relations between the prescribed point and the facilities, based on the positional information on these facilities. The outside-screen facility guide information is displayed in superposition on the map display screen. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation system, a terminal device, a navigation server, a navigation device, and a navigation method.

  Conventionally, in navigation systems, a technology that displays an icon image indicating the type of facility on a map image at the location of the facility, and counts and displays the number of facilities that meet the conditions in the specific area. Is disclosed.

  For example, in the information providing system described in Patent Document 1, what is necessary for the user to count in order to know the number of facilities in the specific area displayed on the screen so far exists in the specific area. A technique for displaying the number of facilities and stores by type is disclosed.

  Further, in the map data display device described in Patent Document 2, a predetermined facility existing in a map area outside the display screen equally divided around the current position displayed on the screen is searched, and the direction from the current position is determined. A technique for displaying the number of found facilities is disclosed.

JP 2004-21432 A JP-A-6-20197

  However, in the conventional information providing system described in Patent Document 1, it is possible to provide only facility information within the designated area on the map being displayed on the screen, and it is impossible to grasp the number of facilities outside the screen. Had. Also, in the information providing system, if you want to know facility information around the display screen, you need to change the display scale to a wide-area map, especially if the change is made during route guidance etc. It has a problem that it becomes difficult to grasp the detailed route.

  In addition, in the conventional map data display device described in Patent Document 2, the facility information around the display screen can be known without changing the display scale to a wide-area map. Since the number of facilities of one type of facility is only displayed according to the direction from the current position, it was impossible to determine which facility outside the display screen is closest. . Furthermore, in the map data display device, the number of facilities of a plurality of types of neighboring facilities cannot be displayed on the screen at the same time. For example, a user who wants to use an ATM displays bank and convenience store information on the display screen. If you want to do this, you have the problem of having to display for each kind of facility.

  The present invention has been made in view of the above-mentioned problems, and while displaying a detailed map on the screen, the facility around the display screen is searched, and the display mode is changed according to the positional relationship and the like. It is an object of the present invention to provide a navigation system, a terminal device, a navigation server, a navigation device, and a navigation method that display facility guidance information.

  In order to achieve such an object, the navigation system of the present invention connects a navigation server including at least a control unit and a storage unit, and a terminal device including at least a display unit and a control unit so that they can communicate with each other. In the navigation system, the storage unit of the navigation server includes a map data storage unit that stores map data of a map, a facility information storage unit that stores facility information including location information of facilities existing on the map, And the control unit of the navigation server receives display area information about a display area of a map display screen that displays the map data displayed on the display unit of the terminal apparatus from the terminal apparatus. An information receiving means, and the map data based on the display area information received by the display area information receiving means. Facility information search means for searching for the facility information stored in the facility information storage means for the facility existing in a predetermined area centered on a predetermined point on a map based on The facility existing outside the display area of the map display screen is extracted from the facility information search result acquired by the facility information search means based on the display area information received by the display area information receiving means. The display mode of the facility extracted by the off-screen facility extracting unit and the facility extracted by the off-screen facility extracting unit is changed according to the positional relationship between the predetermined point and the facility based on the position information of the facility. Off-screen facility guide information generating means for generating off-screen facility guide information, and the off-screen facility guide generated by the off-screen facility guide information generating means Off-screen facility guidance information transmitting means for transmitting information to the terminal device, wherein the control unit of the terminal device displays the display area for the display area of the map display screen displayed on the display unit. Display area information transmitting means for acquiring information and transmitting the display area information to the navigation server, off-screen facility guidance information receiving means for receiving the off-screen facility guidance information transmitted from the navigation server, and the screen An off-screen facility guidance information display unit configured to superimpose the off-screen facility guide information received by the off-site facility information receiving unit on the map display screen.

  In the navigation system according to the present invention, in the navigation system described above, the off-screen facility guidance information display means of the terminal device displays the off-screen facility guidance information superimposed on the map display screen for a predetermined time. It is characterized by that.

  In the navigation system according to the present invention, in the navigation system described above, the terminal device includes at least an input unit that inputs a display instruction to display the map display screen on which the off-screen facility guidance information is displayed on the display unit. In addition, the off-screen facility guidance information display means of the terminal device displays the off-screen facility guidance information superimposed on the map display screen when the display instruction is input via the input unit. It is characterized by.

  In the navigation system of the present invention, the off-screen facility guidance information further includes arrow data, and the off-screen facility guidance information display means of the terminal device is based on the positional relationship. The arrow data is displayed superimposed on the map display screen.

  The navigation system according to the present invention is the navigation system described above, wherein the off-screen facility guidance information further includes the number of the facilities existing outside the display area of the map display screen. The off-screen facility guidance information display means displays the number of facilities superimposed on the map display screen.

  In the navigation system of the present invention, the facility information further includes a facility type indicating the type of the facility, and the off-screen facility guidance information display means of the terminal device includes the facility The off-screen facility guidance information for each type is displayed superimposed on the map display screen.

  The navigation system according to the present invention is the navigation system described above, wherein the off-screen facility guidance information further includes facility mark data based on the facility type, and the off-screen facility guidance information display means of the terminal device includes: The facility mark data is displayed superimposed on the map display screen.

  In the navigation system of the present invention, in the navigation system described above, the off-screen facility guidance information generating unit of the navigation server sets a divided region divided into a predetermined number of regions around the predetermined point, The off-screen facility guidance information is generated for the facility extracted by the off-screen facility extracting means for each divided area.

  In the navigation system according to the present invention, the predetermined number of areas is four areas.

  In the navigation system of the present invention, in the navigation system described above, the off-screen facility guidance information display means of the terminal device displays the off-screen facility guidance information superimposed on the screen edge of the map display screen. It is characterized by that.

  Moreover, the terminal device of the present invention is a terminal device including at least a display unit and a control unit that are communicably connected to a navigation server, and the control unit displays map data displayed on the display unit. Display area information transmitting means for acquiring display area information about the display area of the displayed map display screen and transmitting the display area information to the navigation server; and on a map based on the map data transmitted from the navigation server For a facility that exists in a predetermined area centered on the predetermined point and that exists outside the display area of the map display screen, the positional relationship between the predetermined point and the facility is determined based on positional information of the facility. The off-screen facility guidance information receiving means for receiving the off-screen facility guidance information whose display mode has been changed accordingly, and the off-screen facility guidance information receiving means. The off-screen facility guidance information, is characterized in that and a screen outside facility guidance information display means for displaying superimposed on the map display screen.

  In addition, the navigation server of the present invention is a navigation server including at least a control unit and a storage unit that are communicably connected to a terminal device including at least a display unit, and the storage unit includes map data of a map Map data storage means for storing the facility information storage means for storing facility information including location information of the facilities existing on the map, and the control unit receives the display of the terminal device from the terminal device. A map display screen receiving means for receiving a display area portion of the map display screen displaying the map data displayed in the section, and a display area for the display area of the map display screen received by the map display screen receiving means. Display area information acquisition means for acquiring information, and based on the map data based on the display area information acquired by the display area information acquisition means. Facility information retrieval means for retrieving the facility information stored in the facility information storage means for the facility existing in a predetermined area centered on a predetermined point on the map and acquiring the facility information as a search result, and the facility information Outside the screen for extracting the facilities existing outside the display area of the map display screen based on the display area information received by the display area information receiving means from the facility information search result acquired by the search means An off-screen facility in which the display mode of the facility extracted by the facility extracting unit and the off-screen facility extracting unit is changed in accordance with the positional relationship between the predetermined point and the facility based on the position information of the facility Off-screen facility guidance information generating means for generating guidance information, and off-screen facility guidance information generated by the off-screen facility guidance information generating means An off-screen facility guidance display control means for superimposing and displaying the off-screen facility guidance information on the map display screen displayed on the display unit of the terminal device by transmitting to a terminal device. Features.

  Further, the navigation device of the present invention is a navigation device including at least a display unit, a control unit, and a storage unit, wherein the storage unit is present in the map data storage means for storing map map data, and in the map Facility information storage means for storing facility information including location information of the facility to be operated, wherein the control unit displays display area information on a display area of a map display screen displaying the map data displayed on the display unit Display area information acquisition means for acquiring the information, and the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information acquired by the display area information acquisition means, The facility information retrieval means for retrieving the facility information stored in the facility information storage means and acquiring it as a facility information retrieval result, and the facility information retrieval means Off-screen facility extraction for extracting the facility existing outside the display area of the map display screen based on the display area information acquired by the display area information acquisition means from the acquired facility information search result And off-screen facility guidance information in which the display mode of the facility extracted by the off-screen facility extraction unit is changed according to the positional relationship between the predetermined point and the facility based on the position information of the facility. Off-screen facility guide information generating means, and off-screen facility guide information display means for superimposing and displaying the off-screen facility guide information generated by the off-screen facility guide information generating means on the map display screen; , Provided.

  Further, the navigation method of the present invention is a navigation executed in a navigation system in which a navigation server including at least a control unit and a storage unit and a terminal device including at least a display unit and a control unit are connected to be able to communicate with each other. In the method, the storage unit of the navigation server includes: map data storage means for storing map data of a map; and facility information storage means for storing facility information including position information of facilities existing on the map. Display area information for acquiring display area information about a display area of a map display screen displayed on the display section, which is executed in the control section of the terminal device, and transmitting the display area information to the navigation server A transmission step; and the end executed in the control unit of the navigation server. A display area information receiving step for receiving the display area information for the display area of the map display screen displaying the map data displayed on the display unit of the terminal device from a device; and the control of the navigation server The facility information storage for the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information received in the display area information receiving step executed in the section The facility information retrieval step for retrieving the facility information stored in the means and obtaining it as a facility information retrieval result, and the facility information retrieved in the facility information retrieval step executed in the control unit of the navigation server From the search result, based on the display area information received in the display area information receiving step. And the off-screen facility extraction step for extracting the facility existing outside the display area of the map display screen and the off-screen facility extraction step executed in the control unit of the navigation server. An off-screen facility guide information generation step for generating off-screen facility guide information in which a display mode is changed according to a positional relationship between the predetermined point and the facility based on the position information of the facility, and the navigation Off-screen facility guidance information transmitting step for transmitting the off-screen facility guidance information generated at the off-screen facility guidance information generating step to the terminal device, which is executed by the control unit of the server; Screen for receiving the off-screen facility guidance information transmitted from the navigation server, executed in the control unit The outside facility guidance information received in the outside facility guidance information receiving step and the outside screen facility guidance information receiving step executed in the control unit of the terminal device is displayed superimposed on the map display screen. And an off-screen facility guidance information display step.

  The navigation method of the present invention is a navigation method that is executed in a terminal device that is connected to a navigation server in a communicable manner and includes at least a display unit and a control unit, and is executed in the control unit. A display area information transmission step of acquiring display area information about a display area of the map display screen displaying the map data displayed on the display unit, and transmitting the display area information to the navigation server; For a facility that exists in a predetermined area centered on a predetermined point on the map based on the map data and exists outside the display area of the map display screen, the predetermined Screen for receiving off-screen facility guidance information whose display mode has been changed according to the positional relationship between the point and the facility A facility guidance information receiving step, and an off-screen facility guidance information display step for superimposing and displaying the off-screen facility guidance information received at the off-screen facility guidance information receiving step on the map display screen. It is characterized by.

  Further, the navigation method of the present invention is a navigation method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a terminal device having at least a display unit. The terminal comprises: map data storage means for storing map data of a map; and facility information storage means for storing facility information including location information of facilities existing on the map, and is executed in the control unit A map display screen receiving step for receiving a display area portion of a map display screen displaying the map data displayed on the display unit of the terminal device from the device, and the map received in the map display screen receiving step A display area information acquisition step for acquiring display area information for the display area of the display screen; and the display area information acquisition step. The facility information stored in the facility information storage means is searched for the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information acquired in The facility information search step acquired as the facility information search result, and the facility information search result acquired in the facility information search step, based on the display region information received in the display region information reception step Based on the location information of the facility, the off-screen facility extraction step for extracting the facility existing outside the display area of the map display screen, and the facility extracted at the off-screen facility extraction step, Off-screen facility guidance information generation step for generating off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility. And transmitting the off-screen facility guidance information generated at the off-screen facility guidance information generating step to the terminal device, thereby causing the map display screen displayed on the display unit of the terminal device to be out of the screen. And an off-screen facility guidance display control step for superimposing and displaying the facility guidance information.

  The navigation method of the present invention is a navigation method executed in a navigation device having at least a display unit, a control unit, and a storage unit, wherein the storage unit stores map data of a map. And a facility information storage means for storing facility information including location information of facilities existing on the map, and a map display that displays the map data displayed on the display unit, which is executed in the control unit A display area information acquisition step for acquiring display area information about the display area of the screen, and a predetermined point on the map based on the map data based on the display area information acquired in the display area information acquisition step. The facility information stored in the facility information storage means is searched for the facility existing in the predetermined area, and the facility information search result is retrieved. As the facility information search step acquired as the above, the facility information search result acquired in the facility information search step, based on the display region information acquired in the display region information acquisition step, the map display screen An off-screen facility extraction step for extracting the facility existing outside the display area, and the facility extracted at the off-screen facility extraction step, the predetermined point and the facility based on the position information of the facility The off-screen facility guidance information generation step for generating off-screen facility guidance information in which the display mode is changed according to the positional relationship with the off-screen facility guidance information generated at the off-screen facility guidance information generation step, An off-screen facility guidance information display step that is displayed superimposed on the map display screen.

  Moreover, according to this invention, a navigation server receives the display area information about the display area of the map display screen which displayed the map data displayed on the terminal device from the terminal device, and is based on the received display area information. For facilities existing in a predetermined area centered on a predetermined point on a map based on map data, the facility information is searched and acquired as a facility information search result. From the acquired facility information search result, based on the display area information Outside the screen where the facility that exists outside the display area of the map display screen is extracted, and the display mode of the extracted facility is changed according to the positional relationship between the predetermined point and the facility based on the location information of the facility The facility guidance information is generated, the generated off-screen facility guidance information is transmitted to the terminal device, and the terminal device displays the display area of the displayed map display screen. Report information, send display area information to the navigation server, receive off-screen facility guidance information sent from the navigation server, and display the received off-screen facility guidance information superimposed on the map display screen Can do. Thereby, since the present invention can grasp in advance information about the distance of the facility existing in the surrounding map outside the display screen before scrolling the map displayed on the display screen, the user is searching for it. There is an effect that it is easy to judge scrolling in a certain direction of the facility. In addition, the present invention has an effect that when there are a plurality of facilities that the user is looking for in the vicinity, it is easy to determine the direction in which the nearest facility is located.

  In addition, according to the present invention, off-screen facility guidance information can be displayed superimposed on the map display screen for a predetermined time. As a result, the present invention provides the user with the facility guidance information accurately by erasing the facility guidance information existing outside the display screen from the display screen at a predetermined time, and the current location of the user is There is an effect that browsing of the displayed map or the like can be prevented from being disturbed.

  Further, according to the present invention, when a display instruction is input, off-screen facility guidance information can be displayed superimposed on the map display screen. As a result, the present invention can display the guidance information of the facility existing outside the display screen by the input operation when the user needs, and can display the guidance information disappeared from the display screen again. There is an effect.

  In addition, according to the present invention, the off-screen facility guidance information further includes arrow data, and the arrow data based on the positional relationship can be displayed superimposed on the map display screen. As a result, the present invention can display an arrow based on the direction of the facility that the user is looking for, so that it is possible to grasp in which direction the facility can be accessed with a glance. There is an effect.

  In addition, according to the present invention, the off-screen facility guidance information further includes the number of facilities existing outside the display area of the map display screen, and the number of facilities can be displayed superimposed on the map display screen. . Thereby, since this invention can display the number in the area | region outside the display screen of the facility which the user is looking for, it glanced at the number of search facilities which exist in the area | region of the map periphery currently displayed on the display screen. There is an effect that can be grasped only by.

  According to the present invention, the facility information further includes a facility type indicating the type of facility, and off-screen facility guidance information for each facility type can be displayed superimposed on the map display screen. As a result, the present invention can display information for each type of facility that the user is looking for, so that it is possible to grasp which facility is located in what direction and how much it exists outside the display screen. There is an effect that can be.

  In addition, according to the present invention, the off-screen facility guidance information further includes facility mark data based on the facility type, and the facility mark data can be displayed superimposed on the map display screen. Thereby, this invention produces the effect that it can be made to grasp | ascertain which facilities exist outside a display screen intuitively.

  Further, according to the present invention, it is possible to set a divided region divided into a predetermined number of regions around a predetermined point, and generate off-screen facility guidance information for the extracted facility for each divided region. Thereby, this invention can grasp | ascertain the number of the facilities which exist in the area | region outside a display screen divided | segmented according to the direction from a predetermined point, and can grasp | ascertain what kind of facility exists in the said area | region. Since it can do, there exists an effect that it can show how many facilities the user desires in each direction.

  Further, according to the present invention, the predetermined number of regions can be four regions. Accordingly, the present invention has an effect that it is possible to easily grasp how many facilities desired by the user exist in four directions (for example, east, west, south, and north) centered on a predetermined point.

  Further, according to the present invention, off-screen facility guidance information can be displayed superimposed on the screen edge of the map display screen. As a result, the present invention can display guidance information (for example, character information) different from the guidance information (for example, an arrow) together with the guidance information displayed on the map, and therefore exists outside the display screen. There is an effect that it is possible to provide the user with more detailed guidance information of the facility to be operated.

  In the above description, the navigation system of the present invention has been described as an example. However, the same effect can be achieved in the terminal device, the navigation server, the navigation device, and the navigation method.

FIG. 1 is a block diagram illustrating an example of a configuration of a navigation system according to the first embodiment. FIG. 2 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment. FIG. 3 is a diagram illustrating an example of the off-screen facility extraction process in the present embodiment. FIG. 4 is a diagram illustrating an example of a divided region setting process in the present embodiment. FIG. 5 is a diagram illustrating an example of a map display screen in the present embodiment. FIG. 6 is a diagram illustrating an example of a map display screen in the present embodiment. FIG. 7 is a diagram illustrating an example of a map display screen in the present embodiment. FIG. 8 is a diagram illustrating an example of a map display screen in the present embodiment. FIG. 9 is a block diagram showing an example of the configuration of the navigation server in the second embodiment. FIG. 10 is a flowchart illustrating an example of processing of the navigation server in the second embodiment. FIG. 11 is a block diagram illustrating an example of a configuration of a navigation device according to the third embodiment. FIG. 12 is a flowchart illustrating an example of processing of the navigation device according to the third embodiment.

  Embodiments of a navigation system, a terminal device, a navigation server, a navigation device, a navigation method, and a program according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  Hereinafter, with regard to the configuration and processing of the present invention, the first embodiment (navigation system), the second embodiment (navigation server (server-driven type)), and the third embodiment (navigation device (stand-alone type)) Details will be described in order.

[First Embodiment]
First, a first embodiment (navigation system) of the present invention will be described below with reference to FIGS.

[Navigation system configuration]
First, an example of the configuration of the navigation system in the first embodiment will be described below with reference to FIG. Here, FIG. 1 is a block diagram showing an example of the configuration of the navigation system in the first embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  As shown in FIG. 1, the navigation system according to the first embodiment of the present invention schematically includes a navigation server 200 including at least a control unit 202 and a storage unit 206, and a position acquisition unit 112 and a display unit 114. The terminal device 100 including at least the input unit 116 and the control unit 102 is configured to be communicable. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. Each part of these navigation systems is communicably connected via an arbitrary communication path.

[Configuration of Navigation Server 200]
Here, in FIG. 1, the navigation server 200 receives the display area information about the display area of the map display screen that displays the map data displayed on the display unit 114 of the terminal apparatus 100 from the terminal apparatus 100, and has received it. The facility information stored in the storage unit 206 is searched for the facility existing in the predetermined region centered on the predetermined point on the map based on the map data based on the display region information, and acquired as the facility information search result. From the facility information search result, a facility existing outside the display area of the map display screen is extracted based on the display area information, and for the extracted facility, the predetermined point and the facility are determined based on the position information of the facility. Generate off-screen facility guidance information whose display mode has been changed according to the positional relationship, and transmit the generated off-screen facility guidance information to the terminal device 100. It has a function. The navigation server 200 is connected to the terminal device 100 through the communication control interface unit 204 via the network 300 so as to be communicable with each other, and includes a control unit 202 and a storage unit 206. The control unit 202 is a control unit that performs various processes, and generates off-screen facility guidance information. The communication control interface unit 204 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and performs communication control between the navigation server 200 and the network 300. Has the function to perform. That is, the communication control interface unit 204 has a function of communicating data with the terminal device 100 or the like via a communication line. The storage unit 206 is a storage unit such as a fixed disk device, and stores various databases and tables (such as a map database 206a and a facility information file 206b).

  Among these components of the storage unit 206, the map database 206a is a map data storage unit that stores map data of a map. Here, the map data stored in the map database 206a is, for example, an outdoor map such as map data meshed according to the scale (for example, first to third region division mesh data, 100m mesh data, etc.). It may be data. Further, the map database 206a may store outdoor map data such as road maps and route maps of the whole country and each region. Further, the map database 206a is an indoor such as a floor guide map for a building having height information (for example, an office building, a hotel, a department store, a station, a museum, a museum, an underground mall, a station, a school, a multi-story parking lot, etc.). Map data may be further stored. The outdoor map data and indoor map data may be image data for map drawing. These outdoor map data and indoor map data are stored in advance in the map database 206a, and the control unit 202 of the navigation server 200 periodically downloads the latest data via the network 300 and stores it in the map database 206a. Outdoor map data and indoor map data may be updated.

  The facility information file 206b is facility information storage means for storing facility information including position information of facilities existing on the map. Here, the facilities are outdoor or indoor structures that exist on the map, and examples include convenience stores, supermarkets, department stores, restaurants, coffee shops, coffee shops, bookstores, parking lots, hospitals, clinics, pharmacies, It may be a building such as a police station, police box, bank, post office, hotel, station, gas station, car supply store, etc., installed in buildings such as ATMs, public telephones, wireless LAN access points, coin lockers, etc. It may be a structure or the like. Further, the position information may be coordinate information (for example, latitude, longitude, altitude, etc.) on a map that specifies the location of the facility. The facility information may further include a facility type indicating the type of facility. Here, the facility type may be, for example, a restaurant, a grocery store, a parking lot, an amusement facility, a financial institution, an accommodation facility, a public institution, a medical institution, or the like. The facility information is stored in advance in the facility information file 206b, and the control unit 202 of the navigation server 200 periodically downloads the latest data via the network 300 and stores the facility information stored in the facility information file 206b. May be updated.

  The control unit 202 has an internal memory for storing a control program such as an OS (Operating System), a program that defines various processing procedures, and necessary data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 is functionally conceptually composed of a map data transmission unit 202a, a display area information reception unit 202b, a facility information search unit 202c, an off-screen facility extraction unit 202d, an off-screen facility guidance information generation unit 202e, and an off-screen facility. A guide information transmission unit 202f is provided.

  Among these, the map data transmission unit 202a is a map data transmission unit that transmits the map data stored in the map database 206a to the terminal device 100. Here, the map data may be map data of a map including the current position of the terminal device 100 based on the position information signal acquired by the position acquisition unit 112 of the terminal device 100.

  Also, the display area information receiving unit 202b receives display area information from the terminal device 100 for receiving the display area information about the display area of the map display screen displaying the map data displayed on the display unit 114 of the terminal device 100. It is. Here, the display area information is the coordinate information (for example, latitude and longitude of the coordinates of the screen edge) and display scale of the map displayed in the display area of the display unit 114, the screen size and resolution of the display unit 114, and the like. There may be.

  In addition, the facility information search unit 202c stores, in the facility information file 206b, facilities existing in a predetermined area centered on a predetermined point on the map based on map data based on the display area information received by the display area information receiving unit 202b. This is facility information search means for searching for stored facility information and acquiring it as a facility information search result. Here, the predetermined point may be a current position of the terminal device 100 or a designated position on a map input by the user via the input unit 116 of the terminal device 100. Further, the predetermined area may be a range of a certain distance from the predetermined point (for example, a range having a radius of 5 km from the predetermined point) or the like, and the information density of the point to be searched, that is, the number of facilities in the search target range is constant. It may be a range from a predetermined point.

  Further, the off-screen facility extraction unit 202d uses the facility information search result acquired by the facility information search unit 202c, outside the display region of the map display screen based on the display region information received by the display region information reception unit 202b. This is an off-screen facility extraction means for extracting existing facilities.

  The off-screen facility guidance information generation unit 202e changes the display mode of the facility extracted by the off-screen facility extraction unit 202d according to the positional relationship between the predetermined point and the facility based on the location information of the facility. Off-screen facility guidance information generating means for generating off-screen facility guidance information. Here, the off-screen facility guidance information generating unit 202e sets a divided region divided into a predetermined number of regions around a predetermined point, and the facilities extracted by the off-screen facility extracting unit 202d for each divided region are as follows. Off-screen facility guidance information may be generated. Here, the predetermined number of regions may be four regions or eight regions. Further, the divided area may be an area that is equally divided around a predetermined point, or may be an area that is arbitrarily divided equally. The off-screen facility guidance information generation unit 202e may generate off-screen facility guidance information for the facility extracted by the off-screen facility extraction unit 202d for each facility type. Further, the off-screen facility guidance information may include character information. Further, the off-screen facility guidance information may further include arrow data. Further, the off-screen facility guidance information may further include the number of facilities existing outside the display area of the map display screen. Further, the off-screen facility guidance information may further include facility mark data based on the facility type of the facility existing outside the display area. Further, the positional relationship may be a distance between two points, or may be an expected arrival time according to a road condition from a predetermined point to a facility. The display mode may be set by the user, or may be automatically set in advance by the control unit 202. The display mode change may be a change in the display size or color of off-screen facility guidance information, a blinking display of off-screen facility guidance information, or the like, and a predetermined stored in the storage unit 206. An additional display of an image (for example, a predetermined character) may be used.

  The off-screen facility guidance information transmission unit 202f is an off-screen facility guidance information transmission unit that transmits the off-screen facility guidance information generated by the off-screen facility guidance information generation unit 202e to the terminal device 100.

[Configuration of Terminal Device 100]
In FIG. 1, the terminal device 100 acquires display area information about the display area of the map display screen displayed on the display unit 114, transmits the display area information to the navigation server 200, and is transmitted from the navigation server 200. The off-screen facility guidance information is received, and the received off-screen facility guidance information is displayed so as to be superimposed on the map display screen. The terminal device 100 is, for example, an information processing device such as a desktop or notebook personal computer that is generally commercially available, or a mobile terminal device such as a mobile phone, PHS, or PDA. In the present embodiment, the terminal device 100 may be an in-vehicle information processing terminal that performs car navigation, for example. In addition, the terminal device 100 includes a position acquisition unit 112 having a GPS function, an IMES function, and the like so that navigation guidance that reflects the current position in real time can be performed. In addition, the terminal device 100 includes a display unit 114 (for example, a display or a monitor including a liquid crystal or an organic EL) that displays a map display screen drawn based on the map data received from the navigation server 200, and the like. An input unit 116 (for example, an input unit for inputting designated position information indicating a designated position on the map based on the map data and a display instruction for causing the display unit 114 to display a map display screen displaying off-screen facility guidance information) Key input unit, touch panel, keyboard, microphone, etc.). The input / output control interface unit 108 controls the position acquisition unit 112, the display unit 114, the input unit 116, and the like.

  Here, the position acquisition unit 112 may be, for example, a position acquisition unit that receives a position information signal transmitted from the position transmission device 500. Here, the position transmitting device 500 may be a GPS device that transmits a position information signal (GPS signal), and IMES that enables indoor positioning using a position information signal having characteristics similar to those of the GPS signal. It may be an IMES device that implements (Indoor Message System) technology. The IMES technology is a system developed from the framework of the quasi-zenith satellite, which is a positioning satellite system. Further, the position transmission device 500 may be a GPS repeater that transmits a GPS signal received outdoors indoors. In addition, the position transmission device 500 is a small-sized device that is arbitrarily installed on each floor or underground structure (eg, tunnel, underground parking lot, etc.) in a building (eg, hotel, department store, school, multistory parking lot, etc.). It may be a transmission device. In addition, self-position information (position ID etc.) according to an installation place is allocated to this small transmitter. When the terminal device 100 enters the communicable range, the terminal device 100 receives the self-position information transmitted from the small transmitter as a position information signal. The communication method at this time may be, for example, various short-range wireless methods such as an RFID (Radio Frequency Identification) tag system and Bluetooth (registered trademark), an infrared communication method, and the like. Further, the position transmission device 500 may be a wireless LAN access point. In the present embodiment, the control unit 102 may calculate position information including latitude, longitude, and height information from the position information signal acquired by the position acquisition unit 112. Further, the position acquisition unit 112 may acquire access point identification information by receiving a wireless LAN signal or the like. In the present embodiment, the control unit 102 may acquire the position information by specifying the position of the access point from the identification information unique to the access point acquired by the position acquisition unit 112.

  In addition, the position acquisition unit 112, for example, based on orientation information such as a traveling direction of the terminal device 100 detected by the orientation sensor, distance information detected by the distance sensor, and map data, based on the map data. You may acquire the positional information which shows a present position. Here, a geomagnetic sensor that detects the absolute traveling direction of the terminal device 100 and an optical gyro that detects the relative traveling direction of the terminal device 100 may be used as the direction sensor. In addition, the direction sensor may be an electronic compass that can acquire information on the direction and inclination by combining a geomagnetic sensor and an acceleration sensor. Further, when the terminal device 100 is an in-vehicle information processing terminal, the distance sensor may generate a pulse signal in proportion to the number of rotations of the axle and detect a movement distance in proportion to the number of pulse signals. Further, when the terminal device 100 is an in-vehicle information processing terminal, the position acquisition unit 112 may acquire position information indicating the own vehicle position from inter-vehicle communication of a communication device mounted on each vehicle.

  The communication control interface unit 104 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and communicates between the terminal device 100 and the network 300. It has a function to perform control. That is, the communication control interface unit 104 has a function of communicating data with the navigation server 200 or the like via a communication line. The network 300 has a function of connecting the terminal device 100 and an external device such as the navigation server 200 to each other, and includes, for example, the Internet, a telephone line network (including a portable terminal line network and a general telephone line network), It may be an intranet, power line communication (PLC), or the like.

  The control unit 102 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and necessary data. And the control part 102 performs the information processing for performing various processes by these programs. The control unit 102 is functionally conceptually configured as a map data receiving unit 102a, a map display unit 102b, a position information acquiring unit 102c, a display area information transmitting unit 102d, an off-screen facility guidance information receiving unit 102e, and an off-screen facility guidance display. The unit 102f is provided.

  Among these, the map data receiving unit 102a is a map data receiving unit that receives the map data transmitted by the map data transmitting unit 202a of the navigation server 200.

  The map display unit 102b is a map display unit that causes the display unit 114 to display a map display screen that displays the map data received by the map data receiving unit 102a. Here, the map display unit 102b may cause the display unit 114 to display a map display screen on which map data received from another system is displayed. Further, the map display unit 102b may cause the display unit 114 to display a map display screen on which the map data held in the terminal device 100 is displayed.

  In addition, the position information acquisition unit 102 c acquires position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 112 as current position information of the terminal device 100 and / or via the input unit 116. Position information acquisition means for acquiring the specified position on the map input as specified position information. Here, the designated position may be a position where the user actually exists, and is a virtual position arbitrarily selected by the user (for example, an Osaka station or airport selected by the user in Tokyo. Or any other point). Specifically, the position information acquisition unit 102c is designated on the display screen that displays the map data displayed on the display unit 114 to the user via the input unit 116 (for example, designation on the touch panel display unit 114). The operated coordinates may be acquired as the designated position information. Further, the position information acquisition unit 102 c may acquire the position information of the vehicle as the current position information of the terminal device 100.

  The display area information transmission unit 102d acquires display area information about the display area of the map display screen displayed on the display unit 114 by the map display unit 102b, and transmits the display area information to the navigation server 200. It is a transmission means. Here, the display area information transmission unit 102d may transmit the current position information of the terminal device 100 acquired by the position information acquisition unit 102c or the designated position information.

  The off-screen facility guidance information receiving unit 102 e is an off-screen facility guidance information receiving unit that receives off-screen facility guidance information transmitted from the navigation server 200.

  The off-screen facility guidance display unit 102f is an off-screen facility guidance information display unit that superimposes and displays the off-screen facility guidance information received by the off-screen facility guidance information receiving unit 102e on the map display screen. Here, the off-screen facility guidance display unit 102f may display off-screen facility guidance information on the map display screen for a predetermined time. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information superimposed on the map display screen when a display instruction is input via the input unit 116. Further, the off-screen facility guidance display unit 102f may display the arrow data based on the positional relationship superimposed on the map display screen. The off-screen facility guidance display unit 102f may display the number of facilities superimposed on the map display screen. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information for each facility type superimposed on the map display screen. The off-screen facility guidance display unit 102f may display the facility mark data superimposed on the map display screen. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information superimposed on the screen edge of the map display screen. Further, the off-screen facility guidance display unit 102f may display each information side by side or display each information side by side when the off-screen facility guidance information includes a plurality of pieces of information. Each information may be displayed side by side at an arbitrary position.

  Above, description of an example of a structure of the navigation system in 1st Embodiment is finished.

[Navigation system processing]
Next, an example of processing of the navigation system according to the first embodiment configured as described above will be described in detail with reference to FIGS. Here, FIG. 2 is a flowchart showing an example of processing of the navigation system in the first embodiment.

  As shown in FIG. 2, first, the map data transmission unit 202a of the navigation server 200 transmits the map data stored in the map database 206a to the terminal device 100 (step SA-1). The map data transmission unit 202a is a map stored in a map database 206a of a map including the current position of the terminal device 100 based on the current position information received from the terminal device 100 and acquired by the position information acquisition unit 102c of the terminal device 100. Data may be transmitted to the terminal device 100.

  And the map data receiving part 102a of the terminal device 100 receives the map data transmitted by the map data transmitting part 202a of the navigation server 200 (step SA-2).

  And the map display part 102b of the terminal device 100 displays the map display screen which displayed the map data received by the map data receiving part 102a on the display part 114 (step SA-3). Here, the map display unit 102b may display icon image data based on the current position information of the terminal device 100 acquired by the position information acquisition unit 102c in a superimposed manner on the map display screen. Further, the map display unit 102b may cause the display unit 114 to display a map display screen on which map data received from another service is displayed. Further, the map display unit 102b may cause the display unit 114 to display a map display screen on which the map data held in the terminal device 100 is displayed.

  And the control part 102 of the terminal device 100 receives the search request | requirement of the off-screen facility information input via the input part 116 by the user (step SA-4). Here, the control unit 102 may further cause the user to input designated position information indicating a designated position on the map based on the map data via the input unit 116.

  Then, the location information acquisition unit 102c of the terminal device 100 acquires the location information calculated from the location information signal received from the location transmission device 500 by the location acquisition unit 112 as the current location information of the terminal device 100, and / or step. In step SA-4, the designated position information input by the user via the input unit 116 is acquired (step SA-5).

  Then, the display area information transmission unit 102d of the terminal device 100 displays the display area information about the display area of the map display screen displayed on the display unit 114 by the map display unit 102b (for example, the latitude and longitude of the coordinates of the screen edge). And the display area information is transmitted to the navigation server 200, and the current position information or the designated position information of the terminal device 100 acquired by the position information acquisition unit 102c is transmitted to the navigation server 200 (step SA-6). .

  Then, the display area information receiving unit 202b of the navigation server 200 displays a map display screen that displays the map data displayed on the display unit 114 of the terminal device 100, transmitted by the display region information transmitting unit 102d of the terminal device 100. The display area information about the area and the current position information of the terminal device 100 acquired by the position information acquisition unit 102c of the terminal device 100 or the specified position information are received (step SA-7).

  The facility information search unit 202c of the navigation server 200 then displays the current position information received by the display region information receiving unit 202b on the map based on the map data based on the display region information received by the display region information receiving unit 202b or The facility information stored in the facility information file 206b is searched for and acquired as a facility information search result for a facility existing in a predetermined area centered on the predetermined point based on the specified position information (for example, a radius of 5 km from the predetermined point). (Step SA-8).

  Then, the off-screen facility extraction unit 202d of the navigation server 200 displays the map display screen based on the display region information received by the display region information reception unit 202b from the facility information search result acquired by the facility information search unit 202c. Facilities existing outside the area are extracted (step SA-9).

  Here, with reference to FIG. 3, an example of the off-screen facility extraction processing in the present embodiment will be described. FIG. 3 is a diagram illustrating an example of the off-screen facility extraction process in the present embodiment. Note that the example shown in FIG. 3 is not limited to the present embodiment, and can be similarly applied to other embodiments such as FIGS. 9 and 11.

  As shown in FIG. 3A, the facility information search unit 202c of the navigation server 200 displays a facility information search result for facilities existing within a radius of 1 km centered on a predetermined point (star) on the display screen. get. Then, the off-screen facility extraction unit 202d of the navigation server 200 extracts five facilities that exist outside the display area of the map display screen from the facility information search result.

  In addition, as illustrated in FIG. 3B, when the user performs a scroll operation for moving the display area illustrated in FIG. 3A to the right via the input unit 116 of the terminal device 100, the terminal device The display area information transmitting unit 102d of 100 transmits the display area information again. Then, the facility information search unit 202c of the navigation server 200 is based on the display area information received by the display area information receiving unit 202b, and has a radius of 1 km around a new predetermined point (x mark) on the display screen. The facility information search result about the facility which exists in is acquired. Then, the off-screen facility extraction unit 202d of the navigation server 200 exists outside the display area of the map display screen from the facility information search result in which two facilities that existed outside the screen before scrolling are searched as the facilities on the screen. Three facilities are extracted.

  Returning to FIG. 2 again, the off-screen facility guidance information generation unit 202e of the navigation server 200 is divided into four regions around a predetermined point based on the current position information or the specified position information received by the display region information receiving unit 202b. For the facilities extracted by the off-screen facility extraction unit 202d for each divided region, the positional relationship such as the distance between the predetermined point and the facility is set based on the location information of the facility. In response, the off-screen facility guidance information including the arrow data and the number of facilities whose display mode such as display size and color is changed is generated (step SA-10).

  Here, with reference to FIG. 4, an example of the divided region setting process in the present embodiment will be described. FIG. 4 is a diagram illustrating an example of a divided region setting process in the present embodiment. Note that the example shown in FIG. 4 is not limited to the present embodiment, and can be similarly applied to other embodiments such as FIGS. 9 and 11.

  As shown in FIG. 4A, the off-screen facility guidance information generation unit 202e of the navigation server 200 uses the center of the display area of the display unit 114 of the terminal device 100 as an intersection, and the vertex of the display area is X Four areas divided by connecting diagonal lines are set, and five off-screen facilities extracted by the off-screen facility extraction unit 202d are counted as one in the upper part outside the screen and four on the right outside the screen. Then, the off-screen facility guidance information generation unit 202e of the navigation server 200 superimposes and displays off-screen facility guidance information (that is, the number of arrows and facilities) for each divided region where the facility exists in the present embodiment. Since the display mode shown in FIG. 4B is set in advance, the arrow data corresponding to each area, icon image data indicating the number of facilities, and the like are acquired from the storage unit 206.

  Returning to FIG. 2 again, the off-screen facility guide information transmitting unit 202f of the navigation server 200 transmits the off-screen facility guide information generated by the off-screen facility guide information generating unit 202e to the terminal device 100 (step SA-11). ).

  Then, the off-screen facility guidance information receiving unit 102e of the terminal device 100 receives off-screen facility guidance information transmitted from the navigation server 200 (step SA-12).

  Then, the off-screen facility guidance display unit 102f of the terminal device 100 converts the arrow data for each divided area included in the off-screen facility guidance information received by the off-screen facility guidance information receiving unit 102e between the predetermined point and the facility. Based on the positional relationship such as the distance, the map display unit 102b displays the map on the map display screen displayed on the display unit 114, and arranges the number of facilities for each divided area in the lower right of the arrow data on the map display screen. The images are superimposed and displayed (step SA-13). Here, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information superimposed on the map display screen for a predetermined time. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information superimposed on the map display screen when a display instruction is input via the input unit 116. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information for each facility type superimposed on the map display screen. The off-screen facility guidance display unit 102f may display the facility mark data superimposed on the map display screen. Further, the off-screen facility guidance display unit 102f may display the off-screen facility guidance information superimposed on the screen edge of the map display screen.

  Here, an example of the display screen in the present embodiment will be described with reference to FIGS. 5 to 8 are diagrams showing examples of the map display screen in the present embodiment. Note that the examples shown in FIGS. 5 to 8 are not limited to the present embodiment, and can be similarly applied to other embodiments such as FIGS. 9 and 11.

  As shown in FIG. 5, the off-screen facility guidance display unit 102f of the terminal device 100 determines that a facility existing in the divided area at the upper part of the screen is a predetermined point (based on the off-screen facility information shown in FIG. The arrow data at the upper part of the screen is displayed brightly and overlaid on the map display screen based on the positional relationship of being at the closest distance from the star, and the arrow data on the right side of the screen is overlaid on the map display screen. The number of facilities for each divided area is displayed on the map display screen so as to be superimposed on the lower right of the arrow data.

  Moreover, as shown in FIG. 6, the off-screen facility guidance display unit 102f of the terminal device 100 displays the arrow data and the number of facilities for each divided region superimposed on the map display screen for a predetermined time (that is, FIG. 6). 6 (a)), the arrow data and the number of facilities disappeared from the map display screen after the predetermined time has elapsed (that is, FIG. 6 (b) and FIG. 6 (c)). Here, the off-screen facility guidance display unit 102f of the terminal device 100 disappears from the map display screen in FIG. 6C when a display instruction is input by the user via the input unit 116 of the terminal device 100. The arrow data and the number of facilities for each divided area may be displayed again superimposed on the map display screen.

  Further, as shown in FIG. 7, the off-screen facility guidance display unit 102f of the terminal device 100 displays the number of facilities and facility mark data for each facility type in each divided region superimposed on the map display screen. . Specifically, the off-screen facility guidance display unit 102f of the terminal device 100 indicates that there is a parking icon image data and a restaurant that is present at the closest distance from a predetermined point (star) in the divided area on the left side of the screen. The bright and large restaurant icon image data shown is displayed, the parking lot icon image data is displayed in the upper divided area outside the screen, and the parking area that is present at the nearest distance from the predetermined point (star) in the divided area on the right outside the screen. Bright and large parking lot icon image data indicating that there is a parking lot is displayed.

  Further, as shown in FIG. 8, the off-screen facility guidance display unit 102f of the terminal device 100 is out of the screen for each divided region divided into eight regions set by the off-screen facility guidance information generation unit 202e of the navigation server 200. Based on the display mode for displaying the facility guidance information, the arrow data is displayed in all the divided areas, and among the eight arrow data, the facility existing in the divided area on the left outside the screen is the closest distance from the predetermined point (star). Based on the positional relationship of being present in the area, the arrow data of the divided area is displayed brightly and overlaid on the map display screen, and the arrow data of other divided areas is displayed overlaid on the map display screen in a small and dark manner. The number of each facility is displayed in a superimposed manner on the map display screen in the lower right of the arrow data.

  Above, description of an example of the process of the navigation system in 1st Embodiment is finished.

[Second Embodiment]
Next, a second embodiment (navigation server 200 (server-driven type)) of the present invention will be described below with reference to FIGS. 9 and 10. Here, FIG. 9 is a block diagram showing an example of the configuration of the navigation server 200 in the second embodiment, and conceptually shows only the portion related to the present invention in the configuration. FIG. 10 is a flowchart showing an example of processing of the navigation server 200 in the second embodiment.

  In the second embodiment, the navigation server 200 adjusts the timing of output by the display unit 114 or the like of the terminal device 100 and transmits these data to the terminal device 100 to display the terminal device 100. The unit 114 and the like are functioning. As described above, the second embodiment is different from the other embodiments in that the navigation server 200 performs server-driven processing.

[Configuration of the navigation server 200 (server-driven type)]
First, an example of the configuration of the navigation server 200 (server-driven type) in the second embodiment will be described below with reference to FIG.

  As shown in FIG. 9, the navigation server 200 according to the second embodiment of the present invention is communicably connected to a terminal device 100 that includes at least a position acquisition unit 112, a display unit 114, an input unit 116, and a control unit 102. The control unit 202 and the storage unit 206 are provided at least. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. The navigation server 200 and the terminal device 100 are communicably connected via an arbitrary communication path.

  In FIG. 9, the navigation server 200 receives the display area portion of the map display screen that displays the map data displayed on the display unit 114 of the terminal apparatus 100 from the terminal apparatus 100, and displays the display area of the received map display screen. The display area information about is acquired, and the facility information stored in the storage unit 206 is searched for facilities existing in a predetermined area centered on a predetermined point on the map based on the map data based on the acquired display area information. The facility information retrieval result is acquired, and the facility existing outside the display area of the map display screen is extracted from the acquired facility information search result based on the display area information, and the position of the facility is extracted for the extracted facility. Based on the information, the off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated, and the generated screen By transmitting the guidance information to the terminal device 100 has a function such as displaying by overlapping the outside-screen facility guidance information to the terminal device 100 map display screen displayed on the display unit 114 of.

  Note that the functions of the communication control interface unit 204 and the storage unit 206 (the map database 206a, the facility information file 206b, etc.) in the navigation server 200, the position acquisition unit 112, the display unit 114, and the input unit 116 in the terminal device 100. Since the function is the same as that of the first embodiment, description thereof is omitted.

  In FIG. 9, the control unit 202 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and required data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 is functionally conceptually a facility information search unit 202c, an off-screen facility extraction unit 202d, an off-screen facility guidance information generation unit 202e, a map display screen generation unit 202g, a map display control unit 202h, a map display screen reception unit. 202i, a display area information acquisition unit 202j, a position information acquisition unit 202k, and an off-screen facility guidance display control unit 202m. Note that the functions of the facility information search unit 202c, the off-screen facility extraction unit 202d, and the off-screen facility guidance information generation unit 202e are the same as those in the first embodiment, and a description thereof will be omitted.

  Among these, the map display screen generation unit 202g is a map display screen generation unit that generates a map display screen displaying the map data stored in the map database 206a. Here, the map data may be map data of a map including the current position of the terminal device 100 based on the position information signal received by the position acquisition unit 112 of the terminal device 100.

  Further, the map display control unit 202h transmits the map display screen generated by the map display screen generation unit 202g to the terminal device 100, thereby causing the display unit 114 of the terminal device 100 to display the map display screen. It is a control means.

  The map display screen receiving unit 202 i is a map display screen receiving unit that receives from the terminal device 100 the display area portion of the map display screen that displays the map data displayed on the display unit 114 of the terminal device 100.

  The display area information acquisition unit 202j is a display area information acquisition unit that acquires display area information about the display area of the map display screen received by the map display screen reception unit 202i.

  Further, the location information acquisition unit 202k receives the location information signal received from the location transmission device 500 by the location acquisition unit 112 of the terminal device 100 from the terminal device 100, and uses the location information calculated from the location information signal as the terminal device. It is position information acquisition means for receiving specified position information indicating a specified position on a map acquired as the current position information of 100 or input via the input unit 116 of the terminal device 100.

  Further, the off-screen facility guidance display control unit 202m transmits the off-screen facility guidance information generated by the off-screen facility guidance information generation unit 202e to the terminal device 100, thereby being displayed on the display unit 114 of the terminal device 100. Off-screen facility guidance display control means for displaying the off-screen facility guidance information superimposed on the map display screen.

  Above, description of an example of a structure of the navigation server 200 in 2nd Embodiment is finished.

[Processing of navigation server 200 (server-driven type)]
Next, an example of processing of the navigation server 200 in the second embodiment configured as described above will be described in detail below with reference to FIG.

  As shown in FIG. 10, first, the map display screen generation unit 202g of the navigation server 200 generates a map display screen that displays the map data stored in the map database 206a (step SB-1). Here, the map display screen generation unit 202g of the navigation server 200 presents the current state of the terminal device 100 based on the position information signal received from the position transmission device 500 by the position acquisition unit 112 of the terminal device 100 received from the terminal device 100. You may produce | generate the map display screen which displayed the map data of the map containing a position.

  Then, the map display control unit 202h of the navigation server 200 transmits the map display screen generated by the map display screen generation unit 202g to the terminal device 100, whereby the map display screen is displayed on the display unit 114 of the terminal device 100. It is displayed (step SB-2).

  And the control part 102 of the terminal device 100 receives the search request | requirement of the off-screen facility information input via the input part 116 by the user (step SB-3).

  And the control part 102 of the terminal device 100 transmits the display area part of the map display screen which displayed the map data displayed on the display part 114 to the navigation server 200 (step SB-4).

  Then, the map display screen receiving unit 202i of the navigation server 200 displays the display area portion of the map display screen that displays the map data transmitted from the control unit 102 of the terminal device 100 and displayed on the display unit 114 of the terminal device 100. Receive (step SB-5).

  Then, the display area information acquisition unit 202j of the navigation server 200 acquires display area information about the display area of the map display screen received by the map display screen reception unit 202i (step SB-6).

  Then, the control unit 102 of the terminal device 100 displays the position information signal received from the position transmission device 500 by the position acquisition unit 112 and / or the designated position on the map input by the user via the input unit 116. The designated position information shown is transmitted to the navigation server 200 (step SB-7).

  Then, the position information acquisition unit 202k of the navigation server 200 receives the position information signal transmitted from the position transmission device 500 by the position acquisition unit 112 of the terminal device 100 and transmitted from the terminal device 100, and from the position information signal. The calculated position information is acquired as the current position information of the terminal device 100, or the designated position information input from the terminal device 100 and transmitted from the terminal device 100 is received (step SB-8). .

  And the facility information search part 202c of the navigation server 200 is the current of the terminal device 100 acquired by the position information acquisition part 202k on the map based on the map data based on the display area information acquired by the display area information acquisition part 202j. Search for facility information stored in the facility information file 206b for facilities existing in a predetermined area (for example, a radius of 5 km from the predetermined point) centered on the predetermined point based on the position information or the received specified position information And acquired as a facility information search result (step SB-9).

  Then, the off-screen facility extraction unit 202d of the navigation server 200 displays the map display screen based on the display area information acquired by the display region information acquisition unit 202j from the facility information search result acquired by the facility information search unit 202c. A facility existing outside the area is extracted (step SB-10).

  Then, the off-screen facility guidance information generation unit 202e of the navigation server 200 has four areas centering on a predetermined point based on the current position information of the terminal device 100 acquired by the position information acquisition unit 202k or the received specified position information. For the facilities extracted by the off-screen facility extraction unit 202d for each divided region, the distance between the predetermined point and the facility is determined based on the location information of the facility, etc. Off-screen facility guidance information including the arrow data and the number of facilities in which the display mode such as the display size and color is changed according to the positional relationship is generated (step SB-11).

  Then, the off-screen facility guidance display control unit 202m of the navigation server 200 transmits the off-screen facility guidance information generated by the off-screen facility guidance information generation unit 202e to the terminal device 100 (step SB-11). The map display screen displayed on the display unit 114 of the terminal device 100 by the map display control unit 202h based on the positional relationship such as the distance between the predetermined point and the facility, based on the arrow data for each divided area included in the off-screen facility guidance information Are superimposed and displayed, and the number of facilities for each divided region is displayed at the bottom right of the arrow data and superimposed on the map display screen (step SB-12). Here, the off-screen facility guidance display control unit 202m may display the off-screen facility guidance information superimposed on the map display screen for a predetermined time. The off-screen facility guidance display control unit 202m may display the off-screen facility guidance information superimposed on the map display screen when a display instruction is input via the input unit 116 of the terminal device 100. Further, the off-screen facility guidance display control unit 202m may display the off-screen facility guidance information for each facility type superimposed on the map display screen. Further, the off-screen facility guidance display control unit 202m may display the facility mark data superimposed on the map display screen. The off-screen facility guidance display control unit 202m may display off-screen facility guidance information superimposed on the screen edge of the map display screen.

  Above, description of an example of the process of the navigation server 200 in 2nd Embodiment is finished.

[Third Embodiment]
Next, a third embodiment (navigation device 400 (stand-alone type)) of the present invention will be described below with reference to FIGS. 11 and 12. Here, FIG. 11 is a block diagram showing an example of the configuration of the navigation apparatus 400 in the third embodiment, and conceptually shows only the portion related to the present invention in the configuration. FIG. 12 is a flowchart illustrating an example of processing of the navigation device 400 according to the third embodiment.

  In the third embodiment, all functions are integrated into the navigation device 400, and the map display screen display area that displays the map data displayed on the display unit 414 without being connected to the navigation server 200 is used. The display area information is acquired, the facility information stored in the storage unit 406 is searched for the facility existing in the predetermined area centered on the predetermined point on the map based on the map data based on the acquired display area information, and the facility Acquired as an information search result, and from the acquired facility information search result, a facility existing outside the display area of the map display screen is extracted based on the display area information, and the extracted facility is included in the position information of the facility. Based on this, the off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated, and the generated off-screen facility is generated. The inner information being displayed superimposed on the map display screen. Thus, the third embodiment is different from the other embodiments in that the navigation device 400 is configured as a stand-alone type and performs processing alone.

[Configuration of the navigation device 400 (stand-alone type)]
First, an example of the configuration of the navigation device 400 (stand-alone type) in the third embodiment will be described below with reference to FIG.

  As shown in FIG. 11, the navigation device 400 according to the third embodiment of the present invention includes at least a position acquisition unit 412, a display unit 414, an input unit 416, a control unit 402, and a storage unit 406. Each unit of the navigation device 400 is communicably connected via an arbitrary communication path.

  In FIG. 11, the functions of the input / output control interface unit 408, the position acquisition unit 412, the display unit 414, and the input unit 416 are the same as those in the first embodiment, and thus description thereof is omitted. Also, each function of the storage unit 406 (the map database 406a, the facility information file 406b, etc.) is the same as that of the first embodiment except that the navigation device 400 is provided instead of the navigation server 200. Therefore, explanation is omitted.

  Further, for each part of the control unit 402 (map display unit 402a to off-screen facility guidance display unit 402g, etc.), the navigation device 400 of the present embodiment is a stand-alone type and does not include a communication control interface unit. Each function is basically the same as that of the first embodiment except that 402 does not include each transmission / reception unit.

  In FIG. 11, the control unit 402 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and required data. And the control part 402 performs the information processing for performing various processes with these programs. The control unit 402 is functionally conceptually a map display unit 402a, a display area information acquisition unit 402b, a position information acquisition unit 402c, a facility information search unit 402d, an off-screen facility extraction unit 402e, an off-screen facility guidance information generation unit 402f, And it is comprised including the off-screen facility guidance display part 402g.

  Among these, the map display unit 402a is a map display unit that causes the display unit 414 to display a map display screen displaying the map data stored in the map database 406a. Here, the map display unit 402a may cause the display unit 414 to display a map display screen on which map data received from another system is displayed. Here, the map data may be map data of a map including the current position of the navigation device 400 based on the position information signal received by the position acquisition unit 412.

The display area information acquisition unit 402b is a display area information acquisition unit that acquires display area information about the display area of the map display screen that displays the map data displayed on the display unit 414 by the map display unit 402a.

  In addition, the position information acquisition unit 402 c acquires position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 412 as current position information of the navigation device 400 and / or via the input unit 416. This is position information acquisition means for acquiring specified position information indicating the specified position on the map that has been input. Here, the designated position may be a position where the user actually exists, and is a virtual position arbitrarily selected by the user (for example, an Osaka station or airport selected by the user in Tokyo. Or any other point). Specifically, the position information acquisition unit 402c is designated on the display screen on which the map data displayed on the display unit 414 is displayed to the user via the input unit 416 (for example, designation on the touch panel type display unit 414). The operated coordinates may be acquired as the designated position information. The position information acquisition unit 402c may acquire the position information of the vehicle as the current position information of the navigation device 400.

  In addition, the facility information search unit 402d stores, in the facility information file 406b, facilities existing in a predetermined area centered on a predetermined point on the map based on map data based on the display area information acquired by the display area information acquisition unit 402b. This is facility information search means for searching for stored facility information and acquiring it as a facility information search result. Here, the predetermined point may be the current position of the navigation device 400 or may be a designated position on the map input via the input unit 416 by the user.

  Further, the off-screen facility extraction unit 402e is located outside the display region of the map display screen based on the display region information acquired by the display region information acquisition unit 402b from the facility information search result acquired by the facility information search unit 402d. This is an off-screen facility extraction means for extracting existing facilities.

  The off-screen facility guidance information generation unit 402f changes the display mode of the facility extracted by the off-screen facility extraction unit 402e according to the positional relationship between the predetermined point and the facility based on the location information of the facility. Off-screen facility guidance information generating means for generating off-screen facility guidance information. Here, the off-screen facility guidance information generating unit 402f sets a divided region divided into a predetermined number of regions around a predetermined point, and the facilities extracted by the off-screen facility extracting unit 402e for each divided region are as follows. Off-screen facility guidance information may be generated. Further, the off-screen facility guidance information generation unit 402f may generate off-screen facility guidance information for the facility extracted by the off-screen facility extraction unit 402e for each facility type. The display mode may be set by the user, or may be automatically set in advance by the control unit 402. Further, the display mode change may be a change in display size or color of off-screen facility guidance information, a blinking display of off-screen facility guidance information, or the like, and a predetermined stored in the storage unit 406. An additional display of an image (for example, a predetermined character) may be used.

  The off-screen facility guidance display unit 402g is an off-screen facility guidance information display unit that superimposes and displays the off-screen facility guidance information generated by the off-screen facility guidance information generation unit 402f on the map display screen. Here, the off-screen facility guidance display unit 402g may display off-screen facility guidance information on the map display screen for a predetermined time. Further, the off-screen facility guidance display unit 402g may display the off-screen facility guidance information superimposed on the map display screen when a display instruction is input via the input unit 416. Further, the off-screen facility guidance display unit 402g may display the arrow data based on the positional relationship superimposed on the map display screen. The off-screen facility guidance display unit 402g may display the number of facilities superimposed on the map display screen. The off-screen facility guidance display unit 402g may display off-screen facility guidance information for each facility type in a superimposed manner on the map display screen. Further, the off-screen facility guidance display unit 402g may display the facility mark data superimposed on the map display screen. The off-screen facility guidance display unit 402g may display off-screen facility guidance information superimposed on the screen edge of the map display screen. Further, the off-screen facility guidance display unit 402g may display each information side by side or display each information side by side when the off-screen facility guidance information includes a plurality of pieces of information. Each information may be displayed side by side at an arbitrary position.

  Above, description of an example of a structure of the navigation apparatus 400 in 3rd Embodiment is finished.

[Processing of navigation device 400 (stand-alone type)]
Next, an example of the process of the navigation device 400 according to the third embodiment configured as described above will be described in detail with reference to FIG.

  As shown in FIG. 12, first, the map display unit 402a causes the display unit 414 to display a map display screen displaying the map data stored in the map database 406a (step SC-1). The map display unit 402a may display the current position information of the navigation device 400 based on the position information signal received by the position acquisition unit 412 superimposed on the map display screen. Further, the map display unit 402a may cause the display unit 414 to display a map display screen on which map data received from another system is displayed.

  Then, the control unit 402 receives a search request for off-screen facility information input by the user via the input unit 416 (step SC-2). Here, the control unit 402 may further cause the user to input designated position information indicating a designated position on the map based on the map data via the input unit 416.

  Then, the display area information acquisition unit 402b acquires display area information about the display area of the map display screen that displays the map data displayed on the display unit 414 by the map display unit 402a (step SC-3).

  Then, the position information acquisition unit 402c acquires the position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 412 as the current position information of the navigation device 400 and / or via the input unit 416. The designated position information indicating the designated position on the input map is acquired (step SC-4).

  The facility information search unit 402d then displays the current position information or designation of the navigation device 400 acquired by the position information acquisition unit 402c on the map based on the map data based on the display region information acquired by the display region information acquisition unit 402b. The facility information stored in the facility information file 406b is searched for and acquired as a facility information search result for a facility existing in a predetermined region (for example, a radius of 5 km from the predetermined point) based on the predetermined point based on the position information. (Step SC-5).

  Then, the off-screen facility extraction unit 402e uses the facility information search result acquired by the facility information search unit 402d to move outside the display region of the map display screen based on the display region information acquired by the display region information acquisition unit 402b. Existing facilities are extracted (step SC-6).

  Then, the off-screen facility guidance information generation unit 402f sets a divided region divided into four regions around a predetermined point based on the current position information or the specified position information of the navigation device 400 acquired by the position information acquisition unit 402c. For the facility extracted by the off-screen facility extraction unit 402e for each of the divided areas, the display size and the like are determined according to the positional relationship such as the distance between the predetermined point and the facility based on the location information of the facility. Off-screen facility guidance information including the arrow data and the number of facilities whose display mode such as color has been changed is generated (step SC-7).

  Then, the off-screen facility guidance display unit 402g converts the arrow data for each divided area included in the off-screen facility guidance information generation unit 402f into a position such as the distance between the predetermined point and the facility. Based on the relationship, the map display unit 402a displays the map on the map display screen displayed on the display unit 414, and displays the number of facilities for each divided region in the lower right of the arrow data superimposed on the map display screen. (Step SC-8). Here, the off-screen facility guidance display unit 402g may display off-screen facility guidance information on the map display screen for a predetermined time. Further, the off-screen facility guidance display unit 402g may display the off-screen facility guidance information superimposed on the map display screen when a display instruction is input via the input unit 416. The off-screen facility guidance display unit 402g may display off-screen facility guidance information for each facility type in a superimposed manner on the map display screen. Further, the off-screen facility guidance display unit 402g may display the facility mark data superimposed on the map display screen. The off-screen facility guidance display unit 402g may display off-screen facility guidance information superimposed on the screen edge of the map display screen.

  Above, description of an example of the process of the navigation apparatus 400 in 3rd Embodiment is finished.

[Other embodiments]
Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments within the scope of the technical idea described in the claims other than the above-described embodiments. It may be done. For example, although the case where display data is output as off-screen facility guidance information has been described as an example in the above-described embodiment, audio data may be output.

  In addition, among the processes described in the embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method.

  In addition, unless otherwise specified, the processing procedures, control procedures, specific names, information including registration data for each processing, parameters such as search conditions, screen examples, and database configurations shown in the above documents and drawings Can be changed arbitrarily.

  Further, regarding the terminal device 100, the navigation server 200, and the navigation device 400, each illustrated component is functionally conceptual and does not necessarily need to be physically configured as illustrated.

  For example, the processing functions provided in each device of the terminal device 100, the navigation server 200, and the navigation device 400, in particular, the processing functions performed in the control unit 102, the control unit 202, and the control unit 402 are all or An arbitrary part can be realized by a CPU (Central Processing Unit) and a program interpreted and executed by the CPU, or can be realized as hardware by wired logic. The program is recorded on a recording medium to be described later, and is mechanically read by the terminal device 100, the navigation server 200, and the navigation device 400 as necessary. In other words, the storage unit 206 such as the ROM or the HD, the storage unit 406, and the like store computer programs for giving instructions to the CPU in cooperation with the OS and performing various processes. This computer program is executed by being loaded into the RAM, and constitutes a control unit in cooperation with the CPU.

  Further, the computer program may be stored in an application program server connected to the terminal device 100, the navigation server 200, and the navigation device 400 via an arbitrary network 300, and all of them may be stored as necessary. It is also possible to download a part.

  The program according to the present invention can also be stored in a computer-readable recording medium. Here, the “recording medium” is an arbitrary “portable physical medium” such as a flexible disk, a magneto-optical disk, a ROM, an EPROM, an EEPROM, a CD-ROM, an MO, a DVD, a Blu-ray Disc, or the like. It includes a “communication medium” that holds a program in a short period of time, such as a communication line or a carrier wave when a program is transmitted via a network represented by a LAN, WAN, or the Internet.

  The “program” is a data processing method described in an arbitrary language or description method, and may be in any format such as source code or binary code. Note that the “program” is not necessarily limited to a single configuration, and functions are achieved in cooperation with a separate configuration such as a plurality of modules and libraries or a separate program represented by the OS. Including things. Note that a well-known configuration and procedure can be used for a specific configuration for reading a recording medium, a reading procedure, an installation procedure after reading, and the like in each device described in the embodiment.

  Various databases and the like (map databases 206a, 406a, facility information files 206b, 406b, etc.) stored in the storage unit 206 and the storage unit 406 include a memory device such as a RAM and a ROM, a fixed disk device such as a hard disk, a flexible disk, Storage means such as an optical disk, which stores various programs, tables, databases, web page files, etc. used for various processes and website provision.

  In addition, the terminal device 100, the navigation server 200, and the navigation device 400 are connected to an information processing device such as a known personal computer or workstation, and software (program, data) that enables the information processing device to implement the method of the present invention. Etc.) may be implemented.

  Furthermore, the specific form of distribution / integration of the devices is not limited to that shown in the figure, and all or a part of them may be functional or physical in arbitrary units according to various additions or according to functional loads. Can be distributed and integrated.

  As described above in detail, according to the present invention, while displaying a detailed map on the screen, the facility around the display screen is searched, and the display mode is changed according to the positional relationship, etc. Since a navigation system, a terminal device, a navigation server, a navigation device, and a navigation method for displaying guidance information can be provided, it is extremely useful in various fields such as information devices that support navigation and the information processing field.

100 terminal device 102 control unit
102a Map data receiver
102b Map display part
102c position information acquisition unit
102d Display area information transmitter
102e Off-screen facility guidance information receiver
102f Off-screen facility guidance display unit 104 Communication control interface unit 108 Input / output control interface unit 112 Position acquisition unit 114 Display unit 116 Input unit 200 Navigation server 202 Control unit
202a Map data transmitter
202b Display area information receiving unit
202c Facility information search section
202d Off-screen facility extraction unit
202e Off-screen facility guidance information generator
202f Off-screen facility guidance information transmitter
202g Map display screen generator
202h Map display control unit
202i Map display screen receiver
202j Display area information acquisition unit
202k position information acquisition unit
202m Off-screen facility guidance display control unit 204 Communication control interface unit 206 Storage unit
206a Map database
206b Facility information file 300 Network 400 Navigation device (stand-alone type)
402 control unit
402a Map display section
402b Display area information acquisition unit
402c Position information acquisition unit
402d Facility information search section
402e Off-screen facility extraction unit
402f Off-screen facility guidance information generator
402g Off-screen facility information display unit 406 Storage unit
406a Map database
406b Facility information file 408 Input / output control interface unit 412 Position acquisition unit 414 Display unit 416 Input unit 500 Position transmitter

Claims (17)

A navigation system in which a navigation server including at least a control unit and a storage unit, and a terminal device including at least a display unit and a control unit are connected to be communicable,
The storage unit of the navigation server includes:
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
The control unit of the navigation server is
Display area information receiving means for receiving display area information about a display area of a map display screen displaying the map data displayed on the display unit of the terminal apparatus from the terminal apparatus;
The facility stored in the facility information storage means for the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information received by the display area information receiving means Facility information search means for searching for information and acquiring it as a facility information search result;
The facility existing outside the display area of the map display screen is extracted from the facility information search result acquired by the facility information search means based on the display area information received by the display area information receiving means. Off-screen facility extraction means to
For the facility extracted by the off-screen facility extraction means, off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated based on the position information of the facility. Off-screen facility guidance information generating means;
Off-screen facility guidance information transmitting means for transmitting the off-screen facility guidance information generated by the off-screen facility guidance information generating unit to the terminal device;
With
The control unit of the terminal device is
Display area information transmitting means for acquiring the display area information about the display area of the map display screen displayed on the display unit, and transmitting the display area information to the navigation server;
Off-screen facility guidance information receiving means for receiving the off-screen facility guidance information transmitted from the navigation server;
Off-screen facility guidance information display means for displaying the off-screen facility guidance information received by the off-screen facility guidance information receiving means superimposed on the map display screen;
A navigation system characterized by comprising: The navigation system according to claim 1,
The off-screen facility guidance information display means of the terminal device is:
A navigation system characterized in that the off-screen facility guidance information is displayed superimposed on the map display screen for a predetermined time. The navigation system according to claim 2, wherein
The terminal device further includes an input unit for inputting at least a display instruction for displaying the map display screen on which the off-screen facility guidance information is displayed on the display unit,
The off-screen facility guidance information display means of the terminal device is:
A navigation system, wherein when the display instruction is input through the input unit, the off-screen facility guidance information is displayed superimposed on the map display screen. The navigation system according to any one of claims 1 to 3,
The off-screen facility guidance information
Including arrow data,
The off-screen facility guidance information display means of the terminal device is:
A navigation system, wherein the arrow data based on the positional relationship is displayed superimposed on the map display screen. The navigation system according to any one of claims 1 to 4,
The off-screen facility guidance information
Including the number of facilities existing outside the display area of the map display screen,
The off-screen facility guidance information display means of the terminal device is:
A navigation system, wherein the number of facilities is displayed in a superimposed manner on the map display screen. The navigation system according to any one of claims 1 to 5,
The above facility information
Includes facility types that indicate the type of facility,
The off-screen facility guidance information display means of the terminal device is:
The off-screen facility guidance information for each facility type is displayed superimposed on the map display screen. The navigation system according to claim 6, wherein
The off-screen facility guidance information
Includes facility mark data based on the above facility types,
The off-screen facility guidance information display means of the terminal device is:
A navigation system, wherein the facility mark data is displayed superimposed on the map display screen. The navigation system according to any one of claims 1 to 7,
The off-screen facility guidance information generating means of the navigation server includes:
A division area divided into a predetermined number of areas around the predetermined point is set, and the off-screen facility guidance information is generated for the facility extracted by the off-screen facility extraction means for each divided area. Features a navigation system. The navigation system according to claim 8,
The predetermined number of areas is
A navigation system characterized by four areas. The navigation system according to any one of claims 1 to 9,
The off-screen facility guidance information display means of the terminal device is:
A navigation system, characterized in that the off-screen facility guidance information is displayed superimposed on a screen edge of the map display screen. A terminal device that is connected to a navigation server so as to be communicable and includes at least a display unit and a control unit,
The control unit
Display area information transmitting means for acquiring display area information about a display area of a map display screen displaying map data displayed on the display unit, and transmitting the display area information to the navigation server;
Position information of the facility that exists in a predetermined area centered on a predetermined point on the map based on the map data transmitted from the navigation server and exists outside the display area of the map display screen Off-screen facility guidance information receiving means for receiving off-screen facility guidance information whose display mode has been changed according to the positional relationship between the predetermined point and the facility,
Off-screen facility guidance information display means for displaying the off-screen facility guidance information received by the off-screen facility guidance information receiving means superimposed on the map display screen;
A terminal device comprising: A navigation server including at least a control unit and a storage unit, connected to a terminal device including at least a display unit in a communicable manner,
The storage unit
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
The control unit
A map display screen receiving means for receiving, from the terminal device, a display area portion of a map display screen displaying the map data displayed on the display unit of the terminal device;
Display area information acquiring means for acquiring display area information about the display area of the map display screen received by the map display screen receiving means;
The facility stored in the facility information storage means for the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information acquired by the display area information acquisition means Facility information search means for searching for information and acquiring it as a facility information search result;
The facility existing outside the display area of the map display screen is extracted from the facility information search result acquired by the facility information search means based on the display area information received by the display area information receiving means. Off-screen facility extraction means to
For the facility extracted by the off-screen facility extraction means, off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated based on the position information of the facility. Off-screen facility guidance information generating means;
By transmitting the off-screen facility guidance information generated by the off-screen facility guidance information generating means to the terminal device, the off-screen facility guidance information is displayed on the map display screen displayed on the display unit of the terminal device. Off-screen facility guidance display control means for superimposing and displaying,
A navigation server comprising: A navigation device comprising at least a display unit, a control unit, and a storage unit,
The storage unit
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
The control unit
Display area information acquisition means for acquiring display area information about a display area of a map display screen displaying the map data displayed on the display unit;
The facility stored in the facility information storage means for the facility existing in a predetermined area centered on a predetermined point on the map based on the map data based on the display area information acquired by the display area information acquisition means Facility information search means for searching for information and acquiring it as a facility information search result;
The facility existing outside the display area of the map display screen is extracted from the facility information search result acquired by the facility information search means based on the display area information acquired by the display area information acquisition means. Off-screen facility extraction means to
For the facility extracted by the off-screen facility extraction means, off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated based on the position information of the facility. Off-screen facility guidance information generating means;
Off-screen facility guidance information display means for displaying the off-screen facility guidance information generated by the off-screen facility guide information generating means superimposed on the map display screen;
A navigation device comprising: A navigation method executed in a navigation system in which a navigation server including at least a control unit and a storage unit, and a terminal device including at least a display unit and a control unit are communicably connected,
The storage unit of the navigation server includes:
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
A display area information transmission step of acquiring display area information about the display area of the map display screen displayed on the display section and transmitting the display area information to the navigation server, which is executed in the control section of the terminal device When,
The display area information about the display area of the map display screen displaying the map data displayed on the display section of the terminal apparatus is received from the terminal apparatus, which is executed in the control section of the navigation server. A display area information receiving step,
The facility existing in a predetermined area centered on a predetermined point on a map based on the map data based on the map data based on the display area information received in the display area information receiving step executed in the control unit of the navigation server About the facility information search step of searching the facility information stored in the facility information storage means, and acquiring it as a facility information search result,
The map display based on the display area information received in the display area information receiving step from the facility information search result acquired in the facility information search step executed in the control unit of the navigation server. Off-screen facility extraction step for extracting the facility existing outside the display area of the screen;
The facility extracted in the off-screen facility extraction step, which is executed in the control unit of the navigation server, according to the positional relationship between the predetermined point and the facility based on the position information of the facility. Off-screen facility guide information generation step for generating off-screen facility guide information whose display mode has been changed,
Off-screen facility guidance information transmitting step for transmitting the off-screen facility guidance information generated at the off-screen facility guidance information generating step to the terminal device, which is executed in the control unit of the navigation server;
Off-screen facility guidance information receiving step for receiving the off-screen facility guidance information transmitted from the navigation server, executed in the control unit of the terminal device;
Off-screen facility guidance information display step for displaying the off-screen facility guidance information received at the off-screen facility guidance information receiving step superimposed on the map display screen, which is executed in the control unit of the terminal device. When,
A navigation method comprising: A navigation method that is executed in a terminal device that is connected to a navigation server in a communicable manner and includes at least a display unit and a control unit,
Executed in the control unit,
A display area information transmission step of acquiring display area information about a display area of a map display screen displaying the map data displayed on the display unit, and transmitting the display area information to the navigation server;
Position information of the facility that exists in a predetermined area centered on a predetermined point on the map based on the map data transmitted from the navigation server and exists outside the display area of the map display screen Off-screen facility guidance information receiving step for receiving off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility,
Off-screen facility guide information display step for displaying the off-screen facility guide information received at the off-screen facility guide information receiving step superimposed on the map display screen;
A navigation method comprising: A navigation method executed in a navigation server including at least a control unit and a storage unit, which is communicably connected to a terminal device including at least a display unit,
The storage unit
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
Executed in the control unit,
A map display screen receiving step for receiving, from the terminal device, a display area portion of a map display screen displaying the map data displayed on the display unit of the terminal device;
A display area information obtaining step for obtaining display area information about the display area of the map display screen received in the map display screen receiving step;
The facility stored in the facility information storage means for the facility existing in a predetermined region centered on a predetermined point on the map based on the map data based on the display region information acquired in the display region information acquisition step. A facility information search step of searching for facility information and acquiring it as a facility information search result;
The facility existing outside the display area of the map display screen based on the display area information received in the display area information receiving step from the facility information search result acquired in the facility information search step Off-screen facility extraction step for extracting
For the facility extracted in the off-screen facility extraction step, off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated based on the position information of the facility. Off-screen facility guidance information generation step,
By transmitting the off-screen facility guidance information generated in the off-screen facility guidance information generating step to the terminal device, the off-screen facility guidance is displayed on the map display screen displayed on the display unit of the terminal device. Off-screen facility guidance display control step for displaying information superimposed,
A navigation method comprising: A navigation method executed in a navigation device comprising at least a display unit, a control unit, and a storage unit,
The storage unit
Map data storage means for storing map map data;
Facility information storage means for storing facility information including location information of facilities existing on the map;
With
Executed in the control unit,
A display area information acquisition step of acquiring display area information about a display area of a map display screen displaying the map data displayed on the display unit;
The facility stored in the facility information storage means for the facility existing in a predetermined region centered on a predetermined point on the map based on the map data based on the display region information acquired in the display region information acquisition step. A facility information search step of searching for facility information and acquiring it as a facility information search result;
The facility existing outside the display area of the map display screen based on the display area information acquired in the display area information acquisition step from the facility information search result acquired in the facility information search step Off-screen facility extraction step for extracting
For the facility extracted in the off-screen facility extraction step, off-screen facility guidance information whose display mode is changed according to the positional relationship between the predetermined point and the facility is generated based on the position information of the facility. Off-screen facility guidance information generation step,
Off-screen facility guide information display step for displaying the off-screen facility guide information generated at the off-screen facility guide information generating step superimposed on the map display screen;
A navigation method comprising:

Images