JP2011137707A - Navigation device and navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device and a navigation system capable of supplying a user with information related to a destination near a guide route, when moving to the destination along the guide route. <P>SOLUTION: This navigation device includes a map storage means 20 for storing map information, a destination setting means 24 for setting the destination, a present place detection means 19 for detecting a present place, a route searching means 21 for searching for the guide route from a starting place to the destination based on the map information and the destination, a related information acquisition means 23 for acquiring related information related to the destination near a scheduled moving position on the front as long as a prescribed distance along the guide route from the present place, and a display means 25 for displaying the acquired related information together with the guide route. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation device and a navigation system, and more particularly to a navigation device and a navigation system that guide a route to a specified destination and guide related information related to a destination near the guidance route.

  For example, there is a known navigation device that detects a current location by GPS (Global Positioning System) or the like as a vehicle travels and displays the current location together with a road map on a display so that the driver can be guided smoothly to the destination. It has been.

  In such a navigation device, when a user designates a destination, a search is made for a guide route to the destination and displayed on the display, and when the vehicle approaches a branch point in a guide route such as an intersection, A device equipped with a voice guidance function for guiding a left turn or lane change by voice is known.

  By the way, in a situation where many buildings and signs are scattered along the guide route, multiple roads are mixed, or the land is unguided for the driver, the voice guide alone is the guide route. May not be able to determine the correct direction of travel. Therefore, as a prior art capable of coping with such a situation, the following Patent Document 1 (Japanese Patent Laid-Open No. 2000-221044) discloses that when a vehicle reaches a selected distance (or time) away from an intersection. A navigation system is disclosed in which photographic images at the intersection are called up and displayed on a display. In this case, the driver can easily determine the traveling direction by comparing the displayed photographic image with the actual surrounding scenery.

  On the other hand, an electronic guide device that displays a guide route to a destination designated by a user on a display and displays a photograph or illustration of a facility at the destination, a description of the facility by a text sentence, etc. (Japanese Unexamined Patent Application Publication No. 2003-214889). According to this electronic guide device, the user can acquire information related to the facility at the destination before arrival, so that the user can enjoy sightseeing efficiently after arrival at the destination.

JP 2000-2221044 (paragraphs [0030] to [0034], FIG. 5) JP 2003-214889 A (paragraph [0034], FIG. 2)

  However, in the navigation system disclosed in Patent Document 1, it is possible to move in the correct direction according to the guidance route based on the photographic image displayed on the display, but more information from the navigation system, for example, It is not possible to acquire information that the user is interested in regarding the destination.

  In addition, the electronic guide device disclosed in Patent Document 2 can acquire information related to the facility at the destination designated by the user, but is in the vicinity of the guide route to the destination and is interested in the user. It cannot provide information that would be For example, even if there is a place where the user wants to drop in the guide route, the user cannot obtain the information.

  An object of the present invention is to solve the above-described problems, and when moving to a destination according to a guide route, related information related to the destination in the vicinity of the guide route can be supplied to the user. An object of the present invention is to provide a navigation device and a navigation system.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
Map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting the current location, and a guide route from the departure location to the destination based on the map information and the destination A route search means for searching for, a related information acquisition means for acquiring related information related to the destination in the vicinity of a planned movement position ahead of the current location by a predetermined distance along the guide route, and the acquired related information And display means for displaying together with the guide route.

  The invention according to claim 2 of the present application is the navigation device according to claim 1, wherein the related information acquisition means acquires the related information extracted based on a keyword related to the set destination. .

  The invention according to claim 3 of the present application is the navigation device according to claim 1 or 2, wherein the related information includes image data.

  The invention according to claim 4 of the present application is characterized in that, in the navigation device according to any one of claims 1 to 3, the related information includes text data.

  The invention according to claim 5 of the present application is the navigation apparatus according to any one of claims 1 to 4, wherein the navigation apparatus includes an audio output unit, and the related information includes audio data. And

  The invention according to claim 6 of the present application is based on map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting a current position, the map information and the destination, Route search means for searching for a guide route from a starting point to the destination, and related information for acquiring related information related to the destination in the vicinity of a planned moving position ahead of the current location by a predetermined distance along the guide route A navigation device having an acquisition means and a display means for displaying the acquired related information together with the guidance route, and related information that is connected to the navigation device via a network and stores the related information to which position information is added. Based on the current location, the destination, and the guidance route acquired from the storage means and the navigation device via the network And a related information search unit that searches the related information from the related information storage unit, and includes an information distribution server that distributes the searched related information to the navigation device via the network. .

  The invention according to claim 7 of the present application is based on map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting a current position, the map information and the destination, Route search means for searching for a guide route from a starting point to the destination, and related information for acquiring related information related to the destination in the vicinity of a planned moving position ahead of the current location by a predetermined distance along the guide route A navigation device having an acquisition means and a display means for displaying the acquired related information together with the guidance route, and related information that is connected to the navigation device via a network and stores the related information to which position information is added. The storage means, the planned movement position, the destination and the guidance route acquired from the navigation device via the network And a related information search means for searching for the related information from the related information storage means, and an information distribution server for distributing the searched related information to the navigation device via the network. And

  The invention according to claim 8 of the present application is based on map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting a current location, the map information and the destination, Route search means for searching for a guide route from a starting point to the destination; range setting means for setting a search range search range in the vicinity of a planned movement position ahead of the current location by a predetermined distance along the guide route; and the search A navigation device having related information acquisition means for acquiring related information related to the destination within the range; and a display means for displaying the acquired related information together with the guide route; and the navigation device via a network. Related information storage means for storing the related information to which the position information is attached is connected to the navigation device via the network. And the related information search means for searching the related information from the related information storage means based on the information about the search range and the destination acquired in the above-mentioned manner, and the searched related information is transmitted via the network. And an information distribution server that distributes to the navigation device.

  The invention according to claim 9 of the present application is the navigation system according to any one of claims 6, 7, or 8, wherein the related information search means is based on a keyword obtained from information regarding the set destination. The related information is searched.

  In the invention according to claim 1, the map storage means for storing the map information, the destination setting means for setting the destination, the current position detecting means for detecting the current location, the departure based on the map information and the destination Route search means for searching for a guide route from the ground to the destination, and related information acquisition for acquiring related information related to the destination in the vicinity of the planned movement position ahead of the current location by a predetermined distance along the guide route And a display means for displaying the acquired related information together with the guidance route, so that the user is interested during movement along the guidance route based on the information displayed in relation to the destination. You can drop in at the facility or sightseeing spot. Moreover, since the relevant information of the destination can be acquired in advance, after arrival at the destination, sightseeing or the like can be performed with the relevant information fully recognized.

  In the invention concerning Claim 2, in the invention concerning Claim 1, the said relevant information acquisition means can acquire the said relevant information extracted based on the keyword regarding the set said destination.

  In the invention according to claim 3, in the invention according to claim 1 or 2, the related information may be image data.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the related information can be text data.

  In the invention concerning Claim 5, in the invention described in any one of Claims 1-4, the said navigation apparatus is equipped with the audio | voice output means, The said relevant information can be made into audio | speech data.

  In the invention according to claim 6, the map storage means for storing the map information, the destination setting means for setting the destination, the current position detection means for detecting the current location, the departure based on the map information and the destination Route search means for searching for a guide route from the ground to the destination, and related information acquisition for acquiring related information related to the destination in the vicinity of the planned movement position ahead of the current location by a predetermined distance along the guide route And a navigation device having a display means for displaying the acquired related information together with the guidance route, and a related information storage connected to the navigation device via a network and storing the related information to which position information is added. And the present location, the destination and the guidance route acquired from the navigation device via the network. An information distribution server for retrieving the related information from the related information storage means, and distributing the retrieved related information to the navigation device via the network. The distribution server searches for related information on the destination and distributes it to the navigation device, and the navigation device can display the information related to the destination and provide it to the user. Based on the displayed information, the user can stop at a facility or a sightseeing spot that is an interesting place while moving along the guide route. Moreover, since the relevant information of the destination can be acquired in advance, after arrival at the destination, sightseeing or the like can be performed with the relevant information recognized.

  In the invention concerning Claim 7, the said movement planned position in Claim 6 can be calculated by the navigation apparatus side, and related information can be searched based on the said movement planned position by the information delivery server side.

  In the invention according to claim 8, the search range in the vicinity of the planned movement position in claim 6 can be calculated on the navigation device side, and related information can be searched on the information distribution server side based on the search range.

  According to a ninth aspect of the present invention, in the invention according to any one of the sixth, seventh and eighth aspects, the related information search means is based on a keyword obtained from the information related to the set destination. Relevant information can be searched.

It is a block diagram which shows the principal part structure of the navigation system concerning the Example of this invention. It is a process flowchart of the navigation apparatus which comprises the navigation system concerning the Example of this invention. It is a process flowchart of the information delivery server which comprises the navigation system concerning the Example of this invention. It is explanatory drawing of the screen displayed on the display means of the navigation apparatus which comprises the navigation system concerning the Example of this invention.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment described below exemplifies a navigation system for embodying the technical idea of the present invention, and is not intended to specify the present invention for this navigation system. The navigation apparatus and the navigation system of other embodiments included in the scope of the present invention can be equally applied.

  FIG. 1 shows a navigation system comprising a navigation device 10 according to an embodiment of the present invention and an information distribution server 12 connected to the navigation device 10 via a network 11 such as a public line network or a mobile phone communication network. It is a block diagram which shows the principal part structure.

  In the embodiment described below, the navigation device 10 is mounted on a vehicle, provides route guidance to the driver to the destination, and provides related information such as facilities and tourist spots related to the destination to the user. It is. In this case, the related information includes image data such as a photograph of the facility, text data and voice data that are the description content of the facility, and the like. The navigation device 10 is a portable terminal such as a mobile phone or a PDA possessed by the user, and provides route guidance and related information on the destination when traveling using transportation such as walking, trains, and buses. It may be a thing.

  The information distribution server 12, for example, provides related information such as photographs, illustrations, text data and voice data indicating service contents, keywords for searching, and the like related to POIs (Points of Interest) belonging to various categories. Related information storage means 13 which is a database stored together with position information on the map. In addition, the information distribution server 12 includes related information search means 14 that searches for related information according to a search condition such as a keyword related to a destination acquired from the navigation device 10 via the network 11.

  The navigation device 10 includes control means 15. The control means 15 is constituted by a processor including a CPU 16, a ROM 17, and a RAM 18, and controls the operation of each part of the navigation device 10 according to a control program recorded in the ROM 17 and the RAM 18.

  The current location detection means 19 is constituted by a GPS receiver or the like that receives radio waves including time information and position information from a plurality of GPS satellites orbiting the earth. The current location of the vehicle can be calculated by receiving and processing radio waves from three or more GPS satellites. The current location detection means 19 can also use a self-contained navigation device including a distance sensor, a direction sensor, a rudder angle sensor, and the like.

  The map storage means 20 stores map information including road node data whose nodes are nodes such as branch points of roads, road link data whose links are links between the nodes, and topographic map data. ing.

  The road node data includes road node numbers, position coordinates, number of connection links, branch point names, etc., and route guidance that provides route guidance such as turning left and right and straight ahead at a guide point that is a predetermined distance away from the branch point. Data and position coordinates of the guide point are stored.

  The road link data includes a road node number as a start point and an end point, a road type, a link length (link cost) as distance information between nodes, a required time, the number of lanes, a road width, and the like. Further, data such as bridges, tunnels, railroad crossings, and toll gates are added to the road link data as link attributes. The road type is information including distinction between highways and toll roads, distinction between national roads and prefectural roads.

  The topographic map data includes background data consisting of water system data such as coastlines, lakes, and river shapes, administrative boundary data, facility locations including parking lots, facility shapes, and facility data including facility names.

  When the user inputs a destination using the input means 24 (destination setting means) described later, the route search means 21 refers to the map information stored in the map storage means 20 and is designated by the current location or the driver. It searches for the optimal guide route from the starting point to the destination.

  The search for the guide route searches for links and nodes from the road node corresponding to the current location or the departure location to the road node corresponding to the destination by various methods such as the Dijkstra method, the link length (link cost) and the required time. And the like, and the route having the shortest total link length (travel distance) or total required time is used as a guide route, and road nodes and links belonging to the route are provided as guide route data.

  The speed detection means 22 detects the speed of the vehicle, which is speed information, and can be constituted by, for example, a speedometer.

  The communication unit 23 is a related information acquisition unit that connects the navigation apparatus 10 to the external information distribution server 12 via the network 11 and acquires related information related to the destination from the information distribution server 12.

  The input unit 24 includes various keys, switches, and the like for performing operation input in the navigation device, input of a departure point, and a destination.

  The display means 25 is for displaying a map image, a guidance route image, and information for route guidance concerning a branch point at a predetermined guidance point so that the user can visually recognize the information. Etc. Further, the display means 25 displays image data and text data that are relevant information about the destination acquired from the information distribution server 12. Note that the display unit 25 may function as an input unit including a touch sensor. In this case, selection input is performed when the user touches an icon displayed on the display.

  The voice output means 26 is voice guidance for route guidance to the user, travel distance to the destination, traffic information, voice guidance according to information such as the travel speed of the vehicle, travel time, etc., the purpose acquired from the information distribution server 12 It provides voice guidance according to the relevant information on the ground.

  Next, based on FIGS. 2-4, operation | movement of the navigation system of a present Example is demonstrated. 2 is a processing flowchart of the navigation device 10, FIG. 3 is a processing flowchart of the information distribution server 12, and FIG. 4 is an explanatory diagram of a screen 27 displayed on the display means 25 of the navigation device 10.

  When the power is turned on and the initial setting is completed, the navigation device 10 mounted on the vehicle receives radio waves from a plurality of GPS satellites by the current location detection means 19, and the position information and time information of each GPS satellite obtained from each radio wave. Based on the above, the current location S of the vehicle is detected (step S101). Note that the detection process of the current location S is sequentially performed at predetermined intervals while the navigation apparatus 10 is powered on.

  Next, a user such as a driver operates the input unit 24 to set the destination G (step S102). In the example shown in FIG. 4, the temple “Myoshinji” is set as the destination G.

  When the destination G is set, the control means 15 instructs the route search means 21 to search for the optimum guide route 28 from the current location S or the departure location to the destination G. In this case, as with the destination G, the departure point can be set by the user using the input unit 24. The route search means 21 refers to the map information stored in the map storage means 20, and presents the optimum guide route 28 from the current location S acquired by the current location detection means 19 or the departure point input by the input means 19 to the destination G. Is searched (step S103).

  When the guide route 28 is searched, the control unit 15 detects the current location S detected in step S101, the destination G set in step S102, the guide route 28 searched in step S103, and the vehicle detected by the speed detection unit 22. Each piece of information regarding the speed is transmitted from the communication means 23 to the information distribution server 12 via the network 11 (step S104). In this case, the information regarding the current location S is position information of the current location S. The information on the destination G is information indicating the name of the facility of the destination G (for example, “Myoshinji”), address, position coordinates, and other features of the destination G arbitrarily set by the user. Information can be set as a keyword.

  On the other hand, when there is an information delivery request from the navigation device 10 (step S201, YES), the information delivery server 12 receives information about the current location S, destination G, guide route 28, and speed of the vehicle via the network 11. Is received (step S202). Next, the related information search unit 14 of the information distribution server 12 searches the related information storage unit 13 for related information related to the destination G based on these pieces of information (step S203).

  Therefore, the process of step S203 will be described in detail.

  The related information search means 14 uses the position information of the current location S of the vehicle, the information about the speed of the vehicle, and the information of the guide route 28 to reach the predetermined location along the traveling direction of the guide route 28 from the current location S. A planned movement position ahead of a predetermined distance is calculated. Note that the scheduled movement position may be predicted based on the normal traveling speed according to the road attribute in the current location S, instead of using information on the speed of the vehicle. Then, the relevant information storage means 13 is searched for characteristic information such as facilities and sightseeing spots in the vicinity of the planned movement position, for example, on the left and right sides of the road. The search range is preferably set to the left and right of the guide route 28 and within a predetermined distance. This is because it is difficult to stop by facilities that are far from the proposed route 28.

  Next, the retrieved information is compared with information representing the characteristics of the destination G, and information related to the characteristics of the destination G is narrowed down as related information. For example, when the destination G is “Myoshinji”, information in which “Tera” is set as a keyword can be extracted from the related information storage means 13 by text search. In addition, when the user sets an arbitrary keyword for the destination G, information having the keyword can be extracted from the related information storage unit 13 as related information.

  The retrieved related information is transmitted from the information distribution server 12 to the navigation device 10 via the network 11 (step S204). The related information can include image data related to the destination G, text data representing an outline of the facility, audio data for explanation, and the like. The information distribution server 12 repeats the processing from step S201 until the guidance of related information to the navigation device 10 is completed (step S205, NO).

  When the navigation apparatus 10 receives related information from the information distribution server 12 via the communication means 23 (step S105), as shown in FIG. 4, together with the guide route 28, the surrounding map, and the current location S of the vehicle, the related information The information image 29 is displayed on the display means 25 (step S106). In FIG. 4, a photograph 30 of a facility or the like included in the related information and a text 31 indicating an outline of the facility or the like are displayed on the image 29. Further, the audio output means 26 of the navigation device 10 can notify the user of the content of the related information based on the audio data relating to the displayed image 29. The navigation device 10 repeats the process from step S104 until the vehicle reaches the destination G and the guidance is finished (step S107).

  As described above in detail, according to the navigation system of the present embodiment, the facility associated with the destination G is displayed on the display means 25 of the navigation device 10 while moving to the destination G along the guide route 28. And information such as sightseeing spots are displayed as information in the vicinity of the planned moving position prior to the current location S, and are notified by voice as necessary, so stop by before reaching the destination G, or Information related to can be acquired in advance.

  In addition, this invention is not limited to the Example mentioned above, It can change in the range which does not deviate from the summary of this invention.

  For example, in the above-described embodiment, based on the information on the current location S transmitted from the navigation device 10, the information distribution server 12 calculates the planned movement position of the vehicle and sets the search range, and the association within the search range Although the information is to be searched, the navigation apparatus 10 calculates the planned movement position of the vehicle and transmits it to the information distribution server 12, and the information distribution server 12 searches the related information based on the transmitted planned movement position. You may do it.

  In addition, the navigation device 10 calculates a planned movement position of the vehicle, sets a search range, transmits information on the search range to the information distribution server 12, and the information distribution server 12 transmits the search range transmitted from the navigation device 10. The related information may be searched based on the above. In this case, the control means 15 of the navigation device 10 functions as a range setting means for setting a search range.

  For the guide route 28, the route search means 21 of the navigation device 10 searches for the guide route 28. However, the information on the current location S and destination G of the vehicle is externally processed by the information distribution server 12 and the like via the network 11. The information may be transmitted to the apparatus, and the guide route 28 may be searched for by the external processing apparatus. In this case, since the processing load for route search in the navigation device 10 is reduced, for example, even when the navigation device 10 is a mobile terminal such as a mobile phone, the navigation device of the present invention is easily realized. be able to.

15 ... Control means 16 ... CPU
17 ... ROM
18 ... RAM
19: current location detection means 20 ... map storage means 21 ... route search means 22 ... speed detection means 23 ... communication means 24 ... input means 25 ... display means 26 ... Audio output means 27 ... screen 28 ... guide route 29 ... image 30 ... photo 31 ... text

Claims (9)

Map storage means for storing map information;
Destination setting means for setting the destination;
Current location detection means for detecting the current location;
Route search means for searching for a guide route from a departure place to the destination based on the map information and the destination;
Related information acquisition means for acquiring related information related to the destination in the vicinity of the planned moving position ahead of the predetermined distance along the guide route from the current location;
Display means for displaying the acquired related information together with the guide route;
A navigation device comprising:   The navigation apparatus according to claim 1, wherein the related information acquisition unit acquires the related information extracted based on a keyword related to the set destination.   The navigation apparatus according to claim 1, wherein the related information includes image data.   The navigation apparatus according to claim 1, wherein the related information includes text data.   The navigation apparatus according to claim 1, wherein the navigation apparatus includes a voice output unit, and the related information includes voice data. Map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting the current location, and a guide route from the departure location to the destination based on the map information and the destination A route search means for searching for, a related information acquisition means for acquiring related information related to the destination in the vicinity of a planned movement position ahead of the current location by a predetermined distance along the guide route, and the acquired related information A navigation device having display means for displaying together with the guidance route;
Related information storage means connected to the navigation device via a network and storing the related information to which position information is given, and the current location, the destination, and the guidance route acquired from the navigation device via the network And a related information search means for searching the related information from the related information storage means, and an information distribution server for distributing the searched related information to the navigation device via the network;
A navigation system comprising: Map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting the current location, and a guide route from the departure location to the destination based on the map information and the destination A route search means for searching for, a related information acquisition means for acquiring related information related to the destination in the vicinity of a planned movement position ahead of the current location by a predetermined distance along the guide route, and the acquired related information A navigation device having display means for displaying together with the guidance route;
Related information storage means connected to the navigation device via a network and storing the related information to which location information is given, the planned movement position obtained from the navigation device via the network, the destination, and the An information distribution server that has a related information search unit that searches the related information from the related information storage unit based on a guide route, and distributes the searched related information to the navigation device via the network;
A navigation system comprising: Map storage means for storing map information, destination setting means for setting a destination, current position detection means for detecting the current location, and a guide route from the departure location to the destination based on the map information and the destination Route search means for searching for, a range setting means for setting a search range in the vicinity of a planned moving position ahead of the current location from the current location along the guide route, and related information related to the destination in the search range A navigation apparatus having related information acquisition means for acquiring information and display means for displaying the acquired related information together with the guidance route;
Related information storage means connected to the navigation device via a network and storing the related information to which position information is assigned, information on the search range acquired from the navigation device via the network, and the destination And a related information search means for searching the related information from the related information storage means, and an information distribution server for distributing the searched related information to the navigation device via the network;
A navigation system comprising:   The navigation system according to any one of claims 6, 7 and 8, wherein the related information search means searches for the related information based on a keyword obtained from the set information related to the destination. .

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