JP2007071848A - Portable navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable navigation system for switching between a two-dimensional display and a three-dimensional display in a portable terminal such as a cellular phone, a PHS and a PDA carried by a walker. <P>SOLUTION: The portable navigation system has an input accepting means, a current position acquiring means, a path/map information receiving means for receiving path information and map information from a predetermined server, a path/map information storing means for storing them, a screen selecting/controlling means for automatically selecting whether the map information is two-dimensionally or three-dimensionally displayed, a two-dimensional guidance screen creating means for creating a two-dimensional guidance screen if a two-dimensional display is selected, a three-dimensional guidance screen creating means for creating a three-dimensional guidance screen if a three-dimensional display is selected, and a display means for displaying the created two-dimensional and three-dimensional guidance screens. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a navigation system for a mobile terminal that can switch between two-dimensional display and three-dimensional display in a mobile terminal such as a mobile phone, a PHS, and a PDA possessed by a pedestrian or the like.

  2. Description of the Related Art Conventionally, a mobile terminal navigation system for easily reaching a destination has been used in a mobile terminal possessed by a pedestrian or the like. Patent Documents 1 and 2 below disclose systems that perform not only road route guidance but also route guidance when entering buildings such as buildings and underground malls.

  In addition to the above-mentioned patent documents, the following patent documents 3 and 4 disclose navigation devices that manually switch between two-dimensional map display (planar map display) and three-dimensional map display (three-dimensional map display). Yes.

JP 2003-121191 A JP 2003-148983 A Japanese Patent Laid-Open No. 9-292830 JP-A-2005-106714

  The navigation device that displays the map using the three-dimensional display in this manner is convenient because the user can grasp the current position and the direction to proceed from his / her own viewpoint. This is especially beneficial when outdoors where there are branches such as complex intersections.

  However, when navigation in a building as described in Patent Document 1 or Patent Document 2 is performed with this three-dimensional display, the display becomes very difficult to understand. In other words, when performing 3D display, the outside of a building can be displayed in 3D by, for example, capturing an image of the actual building, but the interior of the building (for example, a wall or It is very difficult to acquire a live-action photograph of the color, width, length, etc. of the passage, and it is not realistic to acquire information such as interiors of all buildings. Then, the inside of the building is inferred or a polygon display of a certain form is obtained, but it is easily assumed that this is different from the inside of the actual building. If it does so, it will become a display difficult for a user to understand conversely in a three-dimensional display.

  Further, when a user is moving on a side of a building, especially a building, the current GPS position is likely to contain an error due to the influence of multipath. As a result, the GPS positioning data may indicate the inside of the building even though it is actually moving on the side of the building, resulting in a display shift. Then, although the user is not moving in the building, the user suddenly switches to the three-dimensional display inside the building, which may cause confusion in grasping the current position of the user.

  Therefore, the present inventor performs three-dimensional display while moving outside the building such as on the road, and enables switching to the two-dimensional display when moving inside the building, thereby enabling the current position of the user. Invented a navigation system for mobile terminals that made it easier to understand.

  The invention of claim 1 is a navigation system for a portable terminal used in a portable terminal, wherein an input receiving means for receiving an input from a user who uses the portable terminal, and a current position acquisition for acquiring position information of the portable terminal And the route information and map information calculated by a predetermined server based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means. Route / map information receiving means received from the server, route / map information storage means for storing the received route information and map information, and whether to display the map information in two dimensions or three dimensions Screen selection control means for performing control for automatic selection based on the position information or its acquisition method, and two-dimensional display on the screen selection control means. Is selected, two-dimensional guidance screen creation means for creating a two-dimensional guidance screen based on map information stored in the route / map information storage means, and three-dimensional display on the screen selection control means Is selected, 3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means, and the created 2D guidance screen and 3D guidance A navigation system for a portable terminal having display means for displaying a screen.

  According to the present invention, when navigation to a destination is performed with a portable terminal, switching between two-dimensional display and three-dimensional display can be performed based on the position information and the like. In particular, by providing a three-dimensional display outside the building and a two-dimensional display inside the building, navigation becomes easy for the user to understand.

  The invention of claim 2 is a navigation system for a portable terminal used in a portable terminal, wherein an input receiving means for receiving an input from a user who uses the portable terminal, and a current position acquisition for acquiring position information of the portable terminal And the route information and map information calculated by a predetermined server based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means. Route / map information receiving means received from the server, route / map information storage means for storing the received route information and map information, position information acquired by the current position acquisition means, and the route / map information storage Comparing the position information of the predetermined position of the building stored in the means to determine whether the acquired position information is located inside the predetermined position of the building; Screen selection control means for selecting to create a two-dimensional guide screen when it is determined that the screen is located, and for selecting to create a three-dimensional guide screen when it is determined to be located outside, the screen selection A two-dimensional guidance screen creating means for creating a two-dimensional guidance screen based on the map information stored in the route / map information storage means when the control means selects to create a two-dimensional guidance screen; 3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects creation of a 3D guidance screen; And a display means for displaying the created 2D guidance screen and 3D guidance screen.

  One embodiment which further details the invention of claim 1 is the present invention. As in the present invention, it is determined whether the position information of the mobile terminal is inside or outside the building, and when it is inside, it is switched to 2D display, and when it is outside, it is switched to 3D display. This makes navigation easy for users.

  Invention of Claim 3 is the navigation system for portable terminals used with a portable terminal, Comprising: The input reception means which receives the input from the user who uses the said portable terminal, The present position acquisition which acquires the positional information on the said portable terminal And the route information and map information calculated by a predetermined server based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means. Route / map information receiving means received from the server, route / map information storage means for storing the received route information and map information, position information acquired by the current position acquisition means, and the route / map information storage Comparing the position information of the predetermined position of the building stored in the means to determine whether the acquired position information is located inside the predetermined position of the building; When it is determined that the position is located in the part, a predetermined guidance is displayed, and when the input receiving unit accepts the creation of a two-dimensional guidance screen, the two-dimensional guidance screen is selected. Screen selection control means for selecting creation of a three-dimensional guidance screen when it is determined that it is located outside, and when the creation of a two-dimensional guidance screen is selected by the screen selection control means, the route When the 2D guide screen creating means for creating the 2D guide screen based on the map information stored in the map information storage means and the screen selection control means creating the 3D guide screen are selected, 3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means, and the created 2D guidance screen and 3D plan Display means for displaying a screen, a navigation system for a mobile terminal having a.

  An invention obtained by further developing the invention of claim 2 is the present invention. In the present invention, not only the location information of the mobile terminal but also the guidance is displayed to the user to select whether or not the building is present, so that even if there is an error due to multipath, etc. Eliminates the possibility of switching to dimension display. As a result, navigation with higher accuracy can be provided to the user.

  According to a fourth aspect of the present invention, there is provided a navigation system for a portable terminal used in a portable terminal, wherein an input receiving means for receiving an input from a user who uses the portable terminal, and a current position acquisition for acquiring position information of the portable terminal And the route information and map information calculated by a predetermined server based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means. When the route / map information receiving means received from the server, the route / map information storage means for storing the received route information and map information, and the current position acquisition means acquire the position information by narrow area communication Selects to create a two-dimensional guide screen, and when the current position acquisition means acquires the position information by means other than narrow-area communication, a three-dimensional guide screen Screen selection control means for selecting creation, and when the screen selection control means selects creation of a two-dimensional guide screen, 2 based on the map information stored in the route / map information storage means Based on the map information stored in the route / map information storage means when the two-dimensional guidance screen creation means for creating the dimension guidance screen and the creation of the three-dimensional guidance screen in the screen selection control means are selected. A mobile terminal navigation system comprising: a 3D guidance screen creation means for creating a 3D guidance screen; and a display means for displaying the created 2D guidance screen and 3D guidance screen.

  Another embodiment which further details the invention of claim 1 is the present invention. As in the present invention, when position information is acquired by narrow area communication, it is switched to two-dimensional display by determining that it is inside the building. This is because the location information may be provided by narrow area communication inside the building, while the location information is rarely provided by narrow area communication outside the building. is there.

  The invention of claim 5 is a navigation system for a portable terminal used in a portable terminal, wherein an input receiving means for receiving an input from a user who uses the portable terminal, and a current position acquisition for acquiring position information of the portable terminal And the route information and map information calculated by a predetermined server based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means. When the route / map information receiving means received from the server, the route / map information storage means for storing the received route information and map information, and the current position acquisition means cannot acquire the position information by GPS. Selects to create a two-dimensional guide screen, and when the current position acquisition means acquires the position information by GPS, a three-dimensional guide screen is displayed. Screen selection control means for selecting the creation of a two-dimensional guide screen when the screen selection control means is selected based on the map information stored in the route / map information storage means When 2D guidance screen creation means for creating a 2D guidance screen and creation of a 3D guidance screen by the screen selection control means are selected, the map information stored in the route / map information storage means A mobile terminal navigation system comprising: a three-dimensional guide screen creating means for creating a three-dimensional guide screen based on; and a display means for displaying the created two-dimensional guide screen and the three-dimensional guide screen.

  Another embodiment which further details the invention of claim 1 is the present invention. As in the present invention, when position information is acquired by means other than GPS, it is determined that the building has entered the building, and the display is switched to two-dimensional display. This is because it is difficult to acquire position information by GPS inside a building, for example, a building or an underground mall, while it is easy to acquire position information by GPS outside a building. is there. In addition, since the two-dimensional guidance screen (map information of the plane map) is displayed when the mobile terminal cannot acquire the position information by GPS, the user can enjoy navigation based on the position information based on the plane map. To the destination.

  The invention of claim 6 is the navigation system for mobile terminals, wherein the map information is vector data.

  By using map information as vector data as in the present invention, it is not necessary to always hold two types of map information for two-dimensional display and map information for three-dimensional display. This is because the map information has a large amount of information, but in the case of a mobile terminal as in the present invention, the amount of information cannot be stored so much. Therefore, in a navigation system for a portable terminal in which switching between two-dimensional display / three-dimensional display occurs as in the present invention, the amount of information is reduced using map information as vector data, thereby reducing the storage capacity of the portable terminal. I can do it.

According to the present invention, in a navigation system for a portable terminal, map information to be displayed can be switched between two-dimensional display and three-dimensional display for display. In particular, three-dimensional display can be performed while moving outside the building such as on the road, and two-dimensional display can be switched when moving inside the building. This makes it easier to understand the current position of the user and improves convenience.

  An example of the system configuration of the present invention will be described with reference to the system configuration diagram of FIG. FIG. 2 is a diagram showing a hardware configuration of the portable terminal 12 that implements the portable terminal navigation system 1 of the present invention.

  The mobile terminal 12 includes a mobile phone having a network function, a PHS, and a PDA. The mobile terminal 12 includes an input device 20, an arithmetic device 21, a storage device 22, a communication device 23, and a display device 24. The input device 20 corresponds to a key input device such as a numeric keypad or a function key on which a user of the mobile terminal 12 inputs characters, numbers, symbols (characters, etc.). The arithmetic device 21 reads a program for realizing the system of the present invention such as a CPU, and appropriately realizes arithmetic processing of each means (program, module, etc.). The storage device 22 is a device for storing information such as a RAM, and stores a program for realizing the system of the present invention, and stores route information and map information from a user's departure point to a destination. Information stored in the storage device 22 is read out in the processing by the arithmetic device 21 as appropriate, and the processing result is stored in the storage device 22 as appropriate. The communication device 23 transmits / receives information to / from the route information server 10 that calculates route information and the map information server 11 that stores map information. The display device 24 is a device that displays a processing result in the arithmetic device 21.

  The portable terminal navigation system 1 includes an input receiving unit 2, a current position acquiring unit 3, a route / map information receiving unit 4, a route / map information storing unit 5, a two-dimensional guide screen creating unit 7, and a three-dimensional guide screen creating unit 8. And screen selection control means 6 and display means 9.

  The input receiving means 2 is the departure place, destination, waypoint, time conditions (conditions relating to time of departure, arrival time, required time, etc.) input by the user via the input device 20, vehicle designation (train, bus, walk) The input of search conditions necessary for navigation from the departure place to the destination, such as conditions of moving means such as In addition, an input for selecting whether to select two-dimensional display or three-dimensional display input by the user is accepted.

  The current position acquisition means 3 is means for acquiring position information such as the latitude and longitude of the mobile terminal 12 by GPS provided in the mobile terminal 12 or narrow area communication (wireless communication using Bluetooth or the like). In particular, when the mobile terminal 12 is located outside the building, the position information is acquired by GPS, and when the mobile terminal 12 is located inside the building, the position information is acquired by narrow area communication. . As a method for acquiring position information by narrow area communication inside a building, there is a method as described in Japanese Patent Application Laid-Open No. 2003-299138, for example. Further, the position information of the portable terminal 12 acquired by the current position acquisition unit 3 and the search condition received by the input reception unit 2 are transmitted from the communication device 23 to the route information server 10 and the map information server 11.

  The route / map information receiving means 4 is based on the information transmitted to the route information server 10 and the map information server 11 by the current position obtaining means 3 and the route information from the departure point to the destination calculated by those servers and The position map information is received via the communication device 23 and stored in the route / map information storage means 5. Next, an acquisition request for map information to be downloaded from the map information server 11 is transmitted to the map information server 11 via the communication device 23.

  The route / map information storage means 5 is means for storing the route information and map information received by the route / map information receiving means 4 in the storage device 22.

  The map information received from the map information server 11 is vector data. When the 2D guidance screen creation means 7 and the 3D guidance screen creation means 8 create the 2D guidance screen and 3D guidance screen, It is converted into a guide screen of expression or 3D expression.

  The screen selection control means 6 is a means for controlling whether to display the map information in two dimensions or in three dimensions. For example, when the position information of the user reaches the position of the boundary line between the inside of the building and the outside of the building, a guidance such as “Do you want to enter the building” is displayed via the display device 24 and “YES” is displayed. 3D display when selection is accepted, when position information is received by current position acquisition means 3 from narrow area communication inside the building, or when current position acquisition means 3 cannot acquire position information by GPS To switch to 2D display.

  The two-dimensional guidance screen creation means 7 displays the map information stored in the route / map information storage means 5 in two dimensions when the screen selection control means 6 selects to display the map information in two dimensions. Means. An example of two-dimensional map information is shown in FIG.

  The three-dimensional guidance screen creation means 8 displays the map information stored in the route / map information storage means 5 in three dimensions when the screen selection control means 6 selects to display the map information in three dimensions. Means. An example of three-dimensional map information is shown in FIG.

  The display means 9 is a means for displaying the two-dimensional map information created by the two-dimensional guide screen creating means 7 and the three-dimensional map information created by the three-dimensional guide screen creating means 8 via the display device 24.

  The route information server 10 is a server that calculates a route from the departure place to the destination based on the search condition received from the portable terminal 12 and transmits the result to the portable terminal 12 as route information.

  The map information server 11 is a server that transmits the surrounding map information to the mobile terminal 12 as vector data based on the position information received from the mobile terminal 12.

  Next, a first embodiment of the present invention will be described. In this embodiment, when the screen selection control means 6 performs the selection control of the two-dimensional display and the three-dimensional display, the position information of the user is the position of the boundary line between the inside of the building and the outside of the building and the position in the vicinity thereof. When the user reaches a predetermined position, such as when he / she displays a guidance such as “Do you want to enter the building” via the display device 24 and performs a two-dimensional display when the user selects “YES”? It is.

  The user inputs search conditions such as a departure place and a destination from the input device 20 using the mobile terminal 12. The search condition input from the input device 20 is received by the input receiving means 2. The current position acquisition unit 3 acquires the position information of the portable terminal 12 by GPS, narrow area communication, or the like (S100).

  Then, the current position acquisition unit 3 transmits the acquired position information of the mobile terminal 12 and the search condition received by the input reception unit 2 from the communication device 23 to the route information server 10 and the map information server 11. Accordingly, the route information server 10 and the map information server 11 transmit the route information from the departure point to the destination and the map information to the portable terminal 12. Such information is received by the route / map information receiving means 4 via the communication device 23. The received map information and route information are stored in the route / map information storage means 5.

  The screen selection control means 6 is the position information acquired by the current position acquisition means 3 and the position information of the boundary line between the inside and the outside of the building included in the map information received by the route / map information receiving means 4 (or its (Neighboring position information) is compared (S110). That is, it is determined whether the position information (position information of the portable terminal 12) acquired by the current position acquisition unit 3 is located inside or outside the building.

  Usually, since the position information of the portable terminal 12 is located outside the building, the screen selection control means 6 selects to create a three-dimensional guidance screen (S120), and based on the selection, the three-dimensional guidance screen. The creation means 8 creates a three-dimensional guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S130). Then, the display unit 9 displays the three-dimensional guidance screen on the display device 24.

  On the other hand, in S110, as a result of comparing the position information of the mobile terminal 12 and the position information of the boundary line between the inside and the outside of the building, the position of the mobile terminal 12 is detected, for example, when the user enters the inside of the building. When it is determined that the information is located inside the building, the screen selection control unit 6 displays guidance such as “Do you want to enter the building” from the display device 24 via the display unit 9 (S140). A screen displaying this guidance is shown in FIG.

  The user who has read this guidance selects “YES” or “NO” (S150). When the user selects “NO” from the input device 20, the input receiving unit 2 receives the input, and the screen selection control unit 6 selects to create a three-dimensional guidance screen based on the input (S120). . Then, the 3D guidance screen creation means 8 creates a 3D guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S130). Then, the display unit 9 displays the three-dimensional guidance screen on the display device 24. That is, when “NO” is selected, the user is not in the building, but only the position information is determined to be inside, that is, the user is deviated due to an error.

  On the other hand, if the user selects “YES” from the input device 20 in S150, the input accepting means 2 accepts the input, and the screen selection control means 6 selects to create a two-dimensional guidance screen based on the input. (S160). Thereby, the two-dimensional guide screen creation means 7 creates a binary guide screen from the vector data of the map information stored in the route / map information storage means 5 (S170). The display means 9 displays the two-dimensional guidance screen on the display device 24.

  Such processing is repeated, and in S110, as a result of comparing the position information of the user's portable terminal 12 with the position information of the boundary between the inside and outside of the building or the vicinity thereof, the position information of the portable terminal 12 is obtained. Is determined to be located outside the building, the screen selection control means 6 performs three-dimensional display again.

  By performing the processing as described above, the three-dimensional display and the two-dimensional display can be appropriately changed. In addition, the guidance of this embodiment can solve the problem of errors due to multipaths and improve accuracy, but a two-dimensional guidance screen is created simply by determining that it is located inside without guidance. You may choose to do.

  Next, a second embodiment of the present invention will be described. In the present embodiment, when the screen selection control means 6 performs selection control between two-dimensional display and three-dimensional display, the two-dimensional display is performed when the position information is received by the current position acquisition means 3 from the narrow area communication inside the building. The case of performing will be described.

  The user inputs search conditions such as a departure place and a destination from the input device 20 using the mobile terminal 12. The search condition input from the input device 20 is received by the input receiving means 2. The current position acquisition unit 3 acquires the position information of the mobile terminal 12 by GPS (S200).

  Then, the current position acquisition unit 3 transmits the acquired position information of the mobile terminal 12 and the search condition received by the input reception unit 2 from the communication device 23 to the route information server 10 and the map information server 11. Accordingly, the route information server 10 and the map information server 11 transmit the route information from the departure point to the destination and the map information to the portable terminal 12. Such information is received by the route / map information receiving means 4 via the communication device 23. The received map information and route information are stored in the route / map information storage means 5.

  When the current position acquisition unit 3 has not acquired the position information by the narrow area communication via the communication device 23 (when acquired by GPS) (S210), the screen selection control unit 6 creates a three-dimensional guidance screen. Is selected (S220). Then, the 3D guidance screen creation means 8 creates a 3D guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S230). The display means 9 displays the three-dimensional guidance screen on the display device 24.

  On the other hand, the current position acquisition means 3 transmits the position information by the narrow area communication via the communication device 23 due to a user entering the inside of the building that provides the position information inside the building by the narrow area communication. (S210), the screen selection control means 6 selects to create a two-dimensional guidance screen (S240). Then, the two-dimensional guidance screen creation means 7 creates a two-dimensional guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S250). The display means 9 displays the two-dimensional guidance screen on the display device 24.

  When such processing is repeated and the user's mobile terminal 12 cannot receive the narrow area communication in S210, that is, when the current position acquisition unit 3 cannot acquire the position information by the narrow area communication, Again, the screen selection control means 6 selects to create a 3D guidance screen (S220), and the 3D guidance screen creation means 8 creates a 3D guidance screen (S230).

  By performing the processing as described above, the three-dimensional display and the two-dimensional display can be appropriately changed.

  Next, a third embodiment of the present invention will be described. In the present embodiment, when the screen selection control unit 6 performs selection control of the two-dimensional display and the three-dimensional display, the two-dimensional display is performed when the current position acquisition unit 3 cannot acquire the position information by GPS. explain.

  The user inputs search conditions such as a departure place and a destination from the input device 20 using the mobile terminal 12. The search condition input from the input device 20 is received by the input receiving means 2. The current position acquisition unit 3 acquires the position information of the mobile terminal 12 by GPS (S300).

  Then, the current position acquisition unit 3 transmits the acquired position information of the mobile terminal 12 and the search condition received by the input reception unit 2 from the communication device 23 to the route information server 10 and the map information server 11. Accordingly, the route information server 10 and the map information server 11 transmit the route information from the departure point to the destination and the map information to the portable terminal 12. Such information is received by the route / map information receiving means 4 via the communication device 23. The received map information and route information are stored in the route / map information storage means 5.

  As a result of the movement of the user, when the GPS position information can be acquired without change by the current position acquisition unit 3 (S310), the screen selection control unit 6 selects to create a three-dimensional guidance screen (S320). ). Then, the 3D guidance screen creation means 8 creates a 3D guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S330). The display means 9 displays the three-dimensional guidance screen on the display device 24.

  As a result of the movement of the user, if the GPS position information cannot be acquired by the current position acquisition means 3 (S310), it can be considered that the user has entered the inside of the building, for example, the inside of the building or the underground mall. Therefore, the screen selection control means 6 selects to create a two-dimensional guidance screen (S340). Then, the two-dimensional guidance screen creation means 7 creates a two-dimensional guidance screen from the vector data of the map information stored in the route / map information storage means 5 (S350). The display means 9 displays the two-dimensional guidance screen on the display device 24.

  In the case of the present embodiment, the screen selection control means 6 displays a guidance for selecting an entrance that has entered the building on the display device 24 via the display means 9 in addition to simply displaying a two-dimensional guidance screen. It is displayed (S360). This state is shown in FIG.

  In this guidance, as shown in FIG. 9, on the display device 24 of the portable terminal 12, the entrance of the building is displayed with a symbol such as a circle, and the current position is displayed with a symbol such as plus. Then, the plus is moved via the input device 20 on the screen and moved to a symbol such as a circle at the entrance to select (S370). When the input accepting means 2 accepts the selection of the entrance, the two-dimensional guide screen creating means 7 when the route / map information storage means 5 has detailed information on the selected building (S380), The information is displayed (S390). This state is shown in FIG. If no selection is made in S370, or if there is no detailed information about the building in S380, a two-dimensional guidance screen based on vector data is displayed as it is. Detailed information includes map information inside the building and information (company name, genre, fee, contact information, etc.) about the company and the store inside the building.

  When such processing is repeated and GPS can be received by the user's portable terminal 12 in S310, the screen selection control means 6 again selects to create a three-dimensional guidance screen ( (S320) The three-dimensional guide screen creating means 8 creates a three-dimensional guide screen (S330).

  By performing the processing as described above, the three-dimensional display and the two-dimensional display can be appropriately changed.

According to the above-described invention, in the navigation system for mobile terminals, the displayed map information can be switched between two-dimensional display and three-dimensional display. In particular, three-dimensional display can be performed while moving outside the building such as on the road, and two-dimensional display can be switched when moving inside the building. This makes it easier to understand the current position of the user and improves convenience.

It is a figure which shows an example of the system block diagram of the navigation system 1 for portable terminals of this invention. It is a figure which shows an example of the hardware block diagram of the portable terminal which functions the navigation system 1 for portable terminals of this invention. 3 is a flowchart illustrating an example of a processing process according to the first exemplary embodiment. 10 is a flowchart illustrating an example of a processing process according to the second embodiment. 10 is a flowchart illustrating an example of a processing process according to a third embodiment. It is an example of a two-dimensional guidance screen. It is an example of a three-dimensional guidance screen. It is an example of the screen which shows the guidance of whether to perform two-dimensional display. It is an example of the screen which shows the guidance which selects the entrance of a building. It is an example of the screen which shows the detailed information of a building.

Explanation of symbols

1: Navigation system for portable terminal 2: Input reception means 3: Current position acquisition means 4: Route / map information reception means 5: Route / map information storage means 6: Screen selection control means 7: Two-dimensional guide screen creation means 8: 3D guidance screen creation means 9: Display means 10: Route information server 11: Map information server 12: Mobile terminal 20: Input device 21: Computing device 22: Storage device 23: Communication device 24: Display device

Claims (6)

A mobile terminal navigation system for use with a mobile terminal,
An input receiving means for receiving an input from a user who uses the mobile terminal;
Current position acquisition means for acquiring position information of the mobile terminal;
Based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means, route information and map information calculated by a predetermined server are received from the predetermined server. Route / map information receiving means,
Route / map information storage means for storing the received route information and map information;
Screen selection control means for performing control for automatically selecting whether to display the map information in two dimensions or in three dimensions based on the position information or an acquisition method thereof;
A two-dimensional guidance screen creating means for creating a two-dimensional guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to display in two dimensions;
3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to display in 3D;
Display means for displaying the created 2D guidance screen and 3D guidance screen;
A navigation system for a portable terminal, comprising: A mobile terminal navigation system for use with a mobile terminal,
An input receiving means for receiving an input from a user who uses the mobile terminal;
Current position acquisition means for acquiring position information of the mobile terminal;
Based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means, route information and map information calculated by a predetermined server are received from the predetermined server. Route / map information receiving means,
Route / map information storage means for storing the received route information and map information;
The position information acquired by the current position acquisition means is compared with the position information of a predetermined position of the building stored in the route / map information storage means, and the acquired position information is inside the predetermined position of the building. Screen selection that determines whether it is located, and if it is determined to be located inside, selects to create a two-dimensional guidance screen, and if it is determined to be located outside, selects to create a three-dimensional guidance screen Control means;
2D guidance screen creation means for creating a 2D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 2D guidance screen. When,
3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 3D guidance screen. When,
Display means for displaying the created 2D guidance screen and 3D guidance screen;
A navigation system for a portable terminal, comprising: A mobile terminal navigation system for use with a mobile terminal,
An input receiving means for receiving an input from a user who uses the mobile terminal;
Current position acquisition means for acquiring position information of the mobile terminal;
Based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means, route information and map information calculated by a predetermined server are received from the predetermined server. Route / map information receiving means,
Route / map information storage means for storing the received route information and map information;
The position information acquired by the current position acquisition means is compared with the position information of a predetermined position of the building stored in the route / map information storage means, and the acquired position information is inside the predetermined position of the building. If the input receiving means accepts that a predetermined guidance is displayed and the creation of a two-dimensional guidance screen is accepted, the two-dimensional guidance screen is displayed. Screen selection control means for selecting creation and selecting to create a three-dimensional guidance screen when it is determined that the position is located outside;
2D guidance screen creation means for creating a 2D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 2D guidance screen. When,
3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 3D guidance screen. When,
Display means for displaying the created 2D guidance screen and 3D guidance screen;
A navigation system for a portable terminal, comprising: A mobile terminal navigation system for use with a mobile terminal,
An input receiving means for receiving an input from a user who uses the mobile terminal;
Current position acquisition means for acquiring position information of the mobile terminal;
Based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means, route information and map information calculated by a predetermined server are received from the predetermined server. Route / map information receiving means,
Route / map information storage means for storing the received route information and map information;
When the current position acquisition means acquires the position information by narrow area communication, it selects to create a two-dimensional guide screen, and when the current position acquisition means acquires the position information by other than narrow area communication Screen selection control means for selecting to create a three-dimensional guidance screen;
2D guidance screen creation means for creating a 2D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 2D guidance screen. When,
3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 3D guidance screen. When,
Display means for displaying the created 2D guidance screen and 3D guidance screen;
A navigation system for a portable terminal, comprising: A mobile terminal navigation system for use with a mobile terminal,
An input receiving means for receiving an input from a user who uses the mobile terminal;
Current position acquisition means for acquiring position information of the mobile terminal;
Based on the search conditions used for navigation received by the input receiving means and the position information acquired by the current position acquiring means, route information and map information calculated by a predetermined server are received from the predetermined server. Route / map information receiving means,
Route / map information storage means for storing the received route information and map information;
If the current position acquisition means cannot acquire the position information by GPS, it selects to create a two-dimensional guide screen, and if the current position acquisition means acquires the position information by GPS, it is three-dimensional. Screen selection control means for selecting to create a guidance screen;
2D guidance screen creation means for creating a 2D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 2D guidance screen. When,
3D guidance screen creation means for creating a 3D guidance screen based on the map information stored in the route / map information storage means when the screen selection control means selects to create a 3D guidance screen. When,
Display means for displaying the created 2D guidance screen and 3D guidance screen;
A navigation system for a portable terminal, comprising: The map information is vector data.
The navigation system for a portable terminal according to any one of claims 1 to 5, wherein the navigation system is a portable terminal.

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