JP5992281B2 - Road guidance message providing system, road guidance message providing device, portable communication terminal, and road guidance message providing method - Google Patents

Description

  The present invention relates to a system, an apparatus, and a method that enable quick guidance to an appropriate place when a road is asked (heard) in a city or the like.

  Patent Document 1 described later discloses an invention related to a pedestrian guidance sentence automatic generation device. In Patent Document 1, a starting point and a destination are input, a walking route is obtained, the obtained walking route is simplified, landmarks on the simplified route are specified, and a route guidance is created based on these. Presenting this to the user is explained. Thereby, for example, the route to the destination can be accurately grasped by the guidance sentence without reaching only the map displayed on the small display screen of the mobile phone terminal, and the destination can be reached.

  In the invention described in Patent Document 1, the target person of the road guidance is a user of the automatic pedestrian guidance sentence generation device, and the pedestrian path guidance sentence is always created from the departure place to the destination. You can go to your destination while referring to the guide repeatedly. For this reason, even if it is a complicated route guidance sentence, since it can move, confirming the route guidance sentence many times, it can head to the destination, without getting lost.

JP 2001-215130 A

  By the way, in towns and other places, anyone can often ask for directions from strangers. Many people who ask for directions do not have a high-function mobile phone terminal (smartphone) or a navigation device that can display a map, or do not have a navigation device. In such a case, even if you know the route to the destination, it is difficult to explain the route well if you are not used to it.

  Therefore, it is conceivable to use the technique described in Patent Document 1 described above. However, even if the technique described in Patent Document 1 is used, if the number of directions to be taught exceeds a certain amount of information, the person who asks for the route cannot be remembered, so that it is ultimately useless. It becomes. This can be easily understood from the experience that when I heard the road, I couldn't remember because there was a lot of content (the amount of information) taught, and I didn't know anything.

  In view of the above, an object of the present invention is to make it possible to convey only information that is surely useful to a person who has asked for a route in a proper manner when asked for the route in a city or the like.

In order to solve the above-mentioned problem, the route guidance message providing system according to claim 1 is provided.
A route guidance message providing system configured by connecting a route guidance message providing device and a mobile communication terminal through a network,
The mobile communication terminal is
A communication means for communicating through the network;
Current position positioning means for measuring the current position;
Accepting means for accepting operation input;
The route guidance includes the destination, the moving unit, and the current position measured by the current position positioning unit when the destination to be routed and the moving unit to the destination are received through the receiving unit. Requesting means for forming a message providing request and providing the route guidance message providing device through the communication means;
Output control means for controlling to receive the route guidance message provided from the route guidance message providing apparatus in response to the route guidance message provision device through the communication means and to output through the output means; and
The route guidance message providing device includes:
A communication means for communicating through the network;
Receiving means for providing the route guidance message from the portable communication terminal through the communication means, and extracting means for extracting the current position, the destination, and the moving means included in the route guidance message provision request;
Search for a route for route guidance that is extracted by the extracting unit when moving from the current position to the destination by the moving unit and that has a small turn or a lot of landmarks. Search means;
When following the route for route guidance obtained as a result of the search by the search means, a limited number of characters for guiding the destination or a halfway position before the destination on the route for route guidance Forming means for forming a route message;
Providing means for providing the route guidance message formed by the forming means to the mobile communication terminal as a request source;
With
The forming means considers the destination on the route guidance route in consideration of the moving means, the distance from the current position of the route guidance route to the destination, and the number of nodes passing through. The intermediate position before the ground is specified .

  As a result, a route guidance message to a point where a person who asks for a route can be surely memorized the route is surely formed, and a route guidance message for notifying the main point to be able to reach the point is formed. , Can be offered to those who have asked the way. As a result, it is possible to convey information that is surely useful to the person who has asked the way, and to help the person who has asked the way to the destination without fail.

  According to the present invention, when a road is asked in a city or the like, only information that is surely useful to a person who has asked the road can be conveyed in a good manner. As a result, it is possible to help a person who asks for directions to head to the destination.

It is a figure for demonstrating the outline | summary of the route guidance message provision system of embodiment, and the schematic structure of the user terminal device 1 and the route guidance message provision apparatus 3 which comprise the said route guidance message provision system. It is a figure for demonstrating an example of the way guidance message provision request | requirement formed in the provision request formation part. It is a figure for demonstrating the example of the template data prepared in template DB308. 4 is a flowchart for explaining a route guidance message providing process executed by a user terminal device 1. It is a figure which shows the example of the input screen etc. which are used by the route guidance message provision process shown in FIG. 5 is a flowchart for explaining a process for providing a road guidance message or the like performed in the road guidance message providing apparatus 3;

  Hereinafter, an embodiment of the system, apparatus, and method of the present invention will be described. In the embodiment described below, a route guidance message providing system configured by connecting a user terminal device and a route guidance message providing device through a network will be described. Note that a function similar to that of the route guidance message providing system has a so-called stand-alone route guidance message providing device using a higher-function mobile terminal such as a notebook PC (PC is an abbreviation for Personal Computer) or a tablet PC. Can also be realized. This point will be described later.

[Configuration example of route guidance message provision system]
FIG. 1 is a diagram for explaining an outline of a route guidance message providing system according to this embodiment and a schematic configuration of a user terminal device 1 and a route guidance message providing device 3 constituting the route guidance message providing system. First, an outline of the route guidance message providing system of this embodiment will be described. As shown in FIG. 1, the route guidance message providing system of this embodiment is configured by connecting a user terminal device 1 and a route guidance message providing device 3 through a network 2.

  The user terminal device 1 is a mobile communication terminal that is carried and used by a user, and is realized by a high-function mobile phone terminal called a smartphone, a notebook PC, a tablet PC, or the like. In this embodiment, it is assumed that the user terminal device 1 is realized by a high function mobile phone terminal. The network 2 is mainly the Internet, and includes, for example, a mobile phone network, a fixed telephone network, and various other LANs (Local Area Networks) that connect each communication device to the Internet.

  The route guidance message providing device 3 can be constituted by a single server device, or a cloud comprising a plurality of processing devices in which a data processing function, a data storage function, etc. are distributed to a plurality of devices on the network 2 It can also be configured as a system. In this embodiment, it is assumed that the route guidance message providing device 3 is constructed as a cloud system.

  Moreover, in this embodiment, the user terminal device 1 can use the portable terminal location information server 4 connected to the network 2 so that the current location of the user terminal device 1 can always be appropriately acquired. The portable terminal location information server 4 is provided on the telephone company side, and manages the number of each base station, the latitude and longitude of the installation location of each base station, and the like. Then, the mobile terminal location information server 4 triangulates the location of the mobile phone terminal from the terminal identification information of the mobile phone terminal sent from the base station and the information on the received electric field strength of the radio wave from the mobile phone terminal. It has a function to calculate and manage using.

  The mobile terminal location information server 4 also has a function of sending the calculated location information of the mobile phone terminal to the mobile phone terminal. Thereby, even when the user terminal device 1 cannot measure the current position by the GPS function, the user terminal device 1 grasps the current position of the own device based on the information from the mobile terminal position information server 4, and obtains the current position of the own device. It can be used as a position.

  Then, it is assumed that the user who owns the user terminal device 1 is visited by a person in the city or the like. In this case, when the requested place (destination) is not known, or the route cannot be explained in a satisfactory manner even if it is known, the user can use the route guidance application (hereinafter referred to as “the route guidance application”) in the user terminal device 1 possessed by the user. , Described as a route guidance application).

  In the user terminal device 1 in which the route guidance application is executed, the current position as the departure point is specified using the GPS function of the own device, and further, the name and address of the facility as the destination are input, and the destination is specified. To do. In this case, the destination is identified by transmitting the name and address of the facility that is the destination to the route guidance message providing device 3, thereby obtaining the location data (latitude of the destination) from the map DB provided in the route guidance message providing device 3. , Longitude). Then, the user terminal device 1 forms a route guidance message provision request including the specified location data (latitude, longitude) of the departure place and the location data (latitude, longitude) of the destination, and uses this as a route guidance message provision device. 3 to send.

  The route guidance message providing device 3 extracts the latitude and longitude of the departure point and the destination from the route guidance message provision request from the user terminal device 1, and the route from the departure point to the destination specified by the latitude and longitude ( (Root). In this case, the route guidance message providing device 3 searches for a route that is as easy to guide as possible. Specifically, a route with a small turning angle or a route with a lot of landmarks as landmarks. Then, the route guidance message providing device 3 identifies a location to be guided according to the complexity of the searched route, and forms a route guidance message for notifying the main points that allow the location to be reached.

  That is, the route guidance message providing device 3 forms a route guidance message that guides the route to the destination when the searched route from the departure point to the destination can be expressed in a short sentence of about 30 characters, for example. . However, when the searched route is complicated and the route to the destination cannot be expressed in a short sentence of about 30 characters, for example, the intermediate position on the route is specified, and the intermediate position is guided to the middle. Once again at the location, form a guidance message that prompts others to ask for directions. The intermediate position is an easily understandable position on the route for reaching the destination, and is a position suitable for inquiring about the road next time.

  As described above, the route guidance message providing device 3 searches for a route from the departure point to the destination in response to the route guidance message provision request from the user terminal device 1. Then, the route guidance message providing device 3 forms an easy-to-understand route guidance message for the person who asked the route according to the complexity of the searched route, and provides this to the user terminal device 1. Then, the user of the user terminal device 1 can perform route guidance appropriately and in a proper manner to a person who has asked for a route based on the route guidance message from the route guidance message providing device 3.

  Note that the route to be searched may be completely different depending on the moving means used by the person who has asked the way. That is, the searched route may differ depending on whether the moving means is walking, bicycle, motorcycle, or automobile. Therefore, the route guidance message provision request from the user terminal device 1 includes information indicating the moving means used by the person who has asked for the route. As a result, the information indicating the moving means is extracted by the route guidance message providing device 3, the route search is performed in consideration of the moving means, and a route guidance message corresponding to the moving means can be formed. . In addition, the user terminal device 1 of this embodiment has a TTS (Text To Speech) function, and reads out the route guidance message from the route guidance message providing device 3 to guide the person who has asked the way. You can also provide a message.

  Furthermore, the case where the person who asked for the road is a foreigner is also considered. Specifically, for example, a route guidance message in a language designated by the route guidance message providing device 3 is formed and provided to the user terminal device 1. Alternatively, a Japanese route guidance message from the route guidance message providing device 3 may be translated into a language designated on the user terminal device 1 side and output. The translation in this case may be realized by the user terminal device 1 having a translation function. It can also be realized by the user terminal device 1 sending a route guidance message to a predetermined translation site on the network 2 to request translation into the instructed language and obtaining the translation result. Of course, the route guidance message translated into the instructed language can also be output by voice using the TTS function.

  As described above, the route guidance message providing system according to this embodiment provides the person who asks for a route when the person who asks for the route cannot explain the route well to the person who asks for the route. On the other hand, a function to convey only useful information in a proper manner is realized. The function is realized by the cooperation of the user terminal device 1 and the route guidance message providing device 3 as will be described in detail below.

  In FIG. 1, only one user terminal device 1 is shown, but in actuality, each of a large number of user terminal devices 1 possessed by a large number of users cooperates with the route guidance message providing device 3. Works. Hereinafter, each of the user terminal device 1 and the route guidance message providing device 3 constituting the route guidance message providing system of this embodiment will be described in detail.

[Configuration example of user terminal device 1]
Next, a configuration example of the user terminal device 1 will be described. The basic configuration of the user terminal device 1 is shown in the block diagram on the lower end side of FIG. In FIG. 1, a wireless communication unit 101 converts a signal received through the network 2 into data that can be processed by the own device (user terminal device 1), or converts various data for transmission into signals that conform to the protocol. For example, the data is converted and sent to the network 2. The wireless communication unit 101 is connected to a transmission / reception antenna 101A.

  The control unit 102 controls each unit of the user terminal device 1 and is configured by connecting a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random access Memory) through a CPU bus (not shown). Computer device. The control unit 102 also functions as an application execution unit that executes various applications.

  The storage device 103 includes a nonvolatile memory as a recording medium, and performs writing / recording holding / reading / deleting various application programs and data obtained by various processes to the nonvolatile memory. The operation unit 104 includes hardware keys provided in the user terminal device 1, receives an operation input from the user, and supplies the received information to the control unit 102. Note that the hardware keys provided in the operation unit 104 are, for example, a power on / off key and some function keys for executing basic functions.

  The time control unit 105 manages the current date, current day, and current time. The GPS unit 106 and the GPS antenna 106A measure the current position of the own device. The display unit 107 receives various image data and video data, converts them into video signals, and displays images and videos corresponding to the video signals on its own display screen. The touch panel 108 attached to the display screen of the display unit 107 constitutes a so-called software key together with information displayed on the display screen. Therefore, the control unit 102 can recognize the instruction input from the user based on the information indicating the user's designated position from the touch panel 108 and the information displayed on the display screen of the display unit 107 corresponding to the designated position. It is like that.

  The audio output unit 109 converts various audio data supplied thereto into an analog audio signal and supplies the analog audio signal to the speaker 110. As a result, sound corresponding to the sound data supplied to the sound output unit 109 is emitted from the speaker 110. The audio output unit 109 and the speaker 110 are used when a TTS (Text To Speech) function is realized.

  The provision request forming unit 111 forms a route guidance message provision request and transmits the request to the route guidance message providing apparatus 3 through the wireless communication unit 101. FIG. 2 is a diagram for explaining an example of a route guidance message provision request formed by the provision request forming unit 111. In this embodiment, the route guidance message provision request formed by the provision request forming unit 111 includes a type, a language, a moving means, a departure place, and a destination as shown in FIG. The type is information indicating what kind of data the data is. Therefore, in the case of this example, the type indicates that the data shown in FIG. 2 is a route guidance message provision request.

  The language is information indicating the language of the route guidance message. That is, the language indicates how many route guidance messages are formed, and information indicating Japanese, English, Chinese, Korean, etc. is input. The moving means is information indicating the moving means of a person who has asked for a way. The person who asks for the road can be assumed to be not only a pedestrian but also a person on a bicycle, motorcycle or car. For this reason, information indicating walking, bicycles, motorcycles, automobiles, or the like is input to the moving means.

  The departure point and the destination are the latitude and longitude of the place corresponding to them. Specifically, the departure place is the current position (latitude, longitude) of the user terminal device 1 acquired through the GPS unit 106. It is also possible to input the name and address of the facility at the departure place, obtain the latitude and longitude of the place corresponding to the information from the route guidance message providing device 3, and use the obtained latitude and longitude. In addition, as the destination, the name and address of the facility that is the destination are input, and the latitude and longitude of the place corresponding to the name and address are acquired from the route guidance message providing device 3 and used.

  As described above, the latitude and longitude of the place corresponding to the input name and address are acquired from the route guidance message providing device 3 because the input name and address are incorrect and the destination is specified. This is to prevent the message providing apparatus 3 from being unable to do so. That is, if the input name or address is incorrect, the corresponding latitude and longitude cannot be acquired. Therefore, by cooperating with the route guidance message providing device 3, the user terminal device 1 can detect that there is an error in the input before forming the route guidance message provision request, and can re-enter the input. I have to.

  Although not shown in the route guidance message provision request in FIG. 2, for example, the current time acquired from the time control unit 105 when the route guidance message provision request is formed may be included in the route guidance message provision request. Thereby, in the route guidance message provision apparatus 3, the time when the received route guidance message provision request | requirement was formed can be grasped | ascertained.

  Then, in response to the route guidance message provision request formed by the provision request forming unit 111 and transmitted to the route guidance message providing device 3, a route guidance message is formed for the person who has asked the route from the route guidance message providing device 3. Will be sent. The user terminal device 1 receives the route guidance message from the route guidance message providing device 3 through the wireless communication unit 101. Then, the control unit 102 supplies the received road guidance message to the display unit 107 and displays the road guidance message on the display unit 107. The control unit 102 can also convert the route guidance message from the route guidance message providing device 3 into voice data, supply the voice data to the voice output unit 109, and emit the route guidance message as sound from the speaker 110. . In this way, the control unit 102 also has a function as a route guidance message output control unit.

  In this way, the user terminal device 1 of this embodiment forms a route guidance message provision request including at least a departure place and a destination, and transmits this request to the route guidance message provision device 3 to send a route guidance message. Necessary route guidance message information is acquired from the providing device 3. And the said route guidance message information is output so that it can provide with the person who asked the way.

[Configuration example of the route guidance message providing device 3]
Next, a configuration example of the route guidance message providing device 3 will be described. The basic configuration of the route guidance message providing apparatus 3 is shown in the block diagram on the upper end side of FIG. In FIG. 1, the communication I / F 301 converts a signal received through the network 2 into data that can be processed by the own device (the route guidance message providing device 3), or conforms various data for transmission to the protocol. It is converted into a signal and sent to the network 2.

  The control unit 302 controls each unit of the route guidance message providing device 3 and is a computer device configured by connecting a CPU, a ROM, and a RAM through a CPU bus (not shown). The control unit 302 also functions as an application execution unit that executes various applications. The storage device 303 includes a hard disk as a recording medium, and performs writing / recording holding / reading / deleting various application programs and data obtained by various processes to the hard disk.

  Each of the map DB 304, the POI (Point Of Interest) DB 305, the road network DB 306, the pedestrian network DB 307, and the template DB 308 is formed on a large-capacity recording medium such as a hard disk, and stores and holds predetermined data. Here, the character “DB” is an abbreviation for database.

  The map DB 304 stores and holds various map information (map data) such as vector data, raster data, and annotation data for drawing a map in association with latitude / longitude information. Specifically, the map information stored in the map DB 304 is formed for each predetermined type (for each layer) such as a road, a railway, a river, a mountain, a facility, a house, and a sign.

  The POIDB 305 stores and holds base information, which is information about various bases such as various stores and various facilities specified by latitude and longitude, or feature points on the topography. For example, if there are bases such as landmark buildings or various facilities on the map, detailed information such as what kind of base the base is and what features it has is arranged Yes.

  The road network DB 306 stores and holds road network data including node data and link data. The node data represents points such as landmarks, buildings, facilities, intersections, branch points, and bending points. In addition, the link data indicates a route through which a car such as a taxi such as a highway, a national road, a prefectural road, a municipal road, or a private road can pass through a line segment connecting node data. Each link data is associated with information such as the number of the node constituting the link, the link cost, and the link type.

  The link cost represents a load applied to the user when traveling on the road represented by the link. In this embodiment, the link cost is set according to the length of the road represented by the link. The link cost may be set according to the time required to travel on the road represented by the link. The link cost is referred to when searching for a route with the minimum link cost by the so-called Dijkstra method. The link type is information indicating whether the link part is one of an expressway, a national road, a prefectural road, a municipal road, or a private road. In addition, the link data includes detailed information such as the width of the link.

  The basic data configuration of the pedestrian network DB 307 is the same as that of the road network DB 306 described above. However, the link data managed by the pedestrian network DB 307 includes general roads that pedestrians can pass, sidewalks associated with various roads, pedestrian crossings, pedestrian bridges, pedestrian walkways that can pass through buildings and parks, etc. It is about the road where pedestrians can pass.

  The template DB 308 holds various template data for forming a route guidance message. FIG. 3 is a diagram for explaining an example of data stored in the template DB 308. As shown in FIG. 3, template data for many guidance messages is stored and held for each moving means and for each rank. Here, the moving means is a moving means for a person who has asked for directions, such as walking, a bicycle, a motorcycle, and a car. The rank is determined according to the complexity of the route from the departure point to the destination.

  Specifically, in this embodiment, the rank is set to “1” when a simple route guidance message is sufficient because there is no right / left turn or there is an easy-to-understand landmark. In addition, when it is possible to guide to the destination at any one turn, the rank is set to “2”. In addition, when the right / left turn can be guided to the destination in two times, the rank is “3”, and when the right / left turn is required three times or more, the rank is “4”.

  Then, the guidance message formed by the template of rank “1” when the moving means shown in FIG. 3 is walking is as follows. For example, according to the first template, “XX” or “□□” is based on the searched route as described in detail later, for example, “It will be on the right side after going straight about 100 m”. ”Is appropriately filled in with a phrase to form a guidance message.

  In addition, using the template of rank “1” shown in FIG. 3, “I will be behind the Tozai Bank on the opposite side of this station.” Can be formed. In addition, using the template of rank “2” shown in FIG. 3, for example, a guidance message such as “Go straight and turn right at the third traffic light is about 50 m” can be formed. For example, using the template of rank “3” shown in FIG. 3, “Please turn right at the second intersection ahead and turn left at the third intersection. Such a guidance message can be formed.

  In addition, using the template with rank “4” shown in FIG. 3, for example, “There is a police box 300m ahead, please ask me there.” Or “How about a taxi because there is a distance?” A message can be formed. Although not shown in FIG. 3, a template for forming a guidance message using public transportation such as a train or bus is also prepared as a template of rank “5”. Similarly, various templates are prepared for each rank of bicycles, motorcycles, and automobiles.

  In this embodiment, the translation dictionary 309 (1),... Is a dictionary database for translating a guidance message created in Japanese into the designated language. In this embodiment, English, There are translation dictionaries for various languages such as Chinese and Korean.

  Then, when the control unit 302 receives a request from the user terminal device 1 through the communication I / F 301, the request extraction unit 310 decomposes the received request under the control of the control unit 302, and extracts necessary information. Extract and supply the extracted information to the related processing unit. For example, it is assumed that the request extraction unit 310 determines that the request is the route guidance message provision request described with reference to FIG. 2 from the information indicating the type of the received request. In this case, the request extraction unit 310 extracts language, movement means, departure point, and destination data from the request, and supplies the movement means, departure point, and destination to the route search processing unit 311 for the language. Is supplied to the route guidance message forming unit 312.

  The route search processing unit 311 is controlled by the control unit 302, and based on the moving means, the departure place, and the destination from the request extracting section 310, when the moving means is walking, the departure place using the pedestrian network DB307. Route search from to the destination. The route search processing unit 311 searches for a route from the departure point to the destination using the road network DB 306 when the moving means is a bicycle, a motorcycle, or a car. In this case, the map DB 304 and the POIDB 305 are referred to as necessary. Then, the route search processing unit 311 supplies the route guidance message forming unit 312 with route information (route information) from the departure point to the destination obtained by the search.

  The route guidance message forming unit 312 identifies the rank of the template and the location to be guided according to the complexity of the route from the starting point to the destination obtained as a result of the route search by the route search processing unit 311. To do. In other words, when the route from the departure point to the destination is simple, the destination is the place to be guided, but when the route from the departure point to the destination is complicated, the place to be guided is once again It becomes a halfway position on the searched route suitable for asking for directions.

  Then, the route guidance message forming unit 312 identifies a node (point) to be guided from the departure point to the place to be guided, and what kind of guidance is to be performed at the node, for example, straight ahead, right / left turn, The content of guidance such as guidance on the right side, left side, or back side is specified. Then, the route guidance message forming unit 312 identifies a template to be used based on the identified rank, the identified node and the content of the guidance, and forms a route guidance message to be actually provided using the template. This route guidance message is a simplified route guidance message that is provided to a person who has asked for a route and is used to convey the necessary points in a good manner.

  In addition, when the distance from the departure point to the destination exceeds the normal walking distance, for example, when the distance exceeds 2 km, the route guidance message forming unit 312 displays a route guidance message that prompts the user to use a taxi. It can also be formed. Further, when the information indicating the language from the request extraction unit 310 is other than Japanese, the route guidance message forming unit 312 uses the translation dictionary 309 (1),. Translate to the indicated language. The translation dictionary 309 (1),... Can be quickly translated into the target language by configuring it as being suitable for translation of template data in the template DB 308.

  The message providing unit 313 cooperates with the communication I / F 301 under the control of the control unit 302 to provide the route guidance message information formed by the route guidance message forming unit 312 to the requesting user terminal device 1. Realize the function. In this embodiment, the message providing unit 313 extracts map information for forming a map including a route from the departure place to the place to be guided from the map DB 304, and the map information is combined with the route guidance message. It also has functions to provide.

  As described above, the route guidance message providing device 3 searches for a route from the departure point to the destination in response to the route guidance message provision request from the user terminal device 1. Then, the route guidance message providing device 3 specifies a location to be guided according to the complexity of the route obtained as a result of the route search, and a simplified route guidance for notifying the main points that enable the location to be reached. Form a message. Then, the road guidance message providing device 3 provides the formed road guidance message to the user terminal device 1.

  The route guidance message providing device 3 can translate the provided guidance message into the designated language and provide it. Further, the route guidance message providing device 3 can also provide the user terminal device 1 with map information including a route from the departure place to the location to be guided along with the route guidance message. As described above, the route guidance message providing device 3 provides the user terminal device 1 with a route guidance message and map information to be provided to a person who has asked for a route in response to a request from the user terminal device 1. Is realized.

[Processes performed by each device constituting the route guidance message providing system]
Next, the process performed by the user terminal device 1 and the process performed by the route guidance message providing device 3 constituting the route guidance message providing system of this embodiment will be specifically described with reference to a flowchart and the like. .

[Processing of User Terminal Device 1]
First, the process performed in the user terminal device 1 will be described. FIG. 4 is a flowchart for explaining a route guidance message providing process performed when a route guidance application is executed in the user terminal device 1. FIG. 5 is a diagram showing an example of an input screen displayed on the display unit 107 of the user terminal device 1 in the route guidance message providing process shown in FIG.

  In the user terminal device 1 of this embodiment, for example, when an item for executing a route guidance application is selected from a predetermined menu, the control unit 102 executes a route guidance message providing process shown in the flowchart of FIG. . Then, the control unit 102 first accesses the route guidance message providing site provided by the route guidance message providing device 3 using a predetermined URL (Uniform Resource Locator) (step S101). Then, upon receiving provision of necessary information such as an input screen from the route guidance message providing site, the input screen is displayed on the display unit 107 (step S102).

  FIG. 5A is a diagram for explaining an example of the input screen displayed on the display unit 107 in step S102. The input screen includes a language input field G1 and an input field M1 for moving means. Further, the input screen includes an output (display) column S1 of latitude and longitude of the departure point, an input / output column S2 of the name and address of the facility at the departure point, and an output (display) column E1 of the latitude and longitude of the destination. And an input / output field E2 for the name and address of the destination facility. Further, the input screen includes a map display area AR1, and a “end” button and an “OK” button at the lower end.

  And the control part 102 performs the information input reception process which displays required information on the input screen displayed on the display part 107 by step S102, or receives the input of the information from a user (step S103). In this step S103, the control unit 102 mainly functions to perform language display processing, moving means display processing, acquisition and display processing of information regarding the departure place, input reception and display processing of information regarding the destination, and confirmation input processing. Each process is performed in order.

  In this embodiment, “Japanese” is normally selected in the language input field G1. However, when the cursor is positioned in the language input / output column G1, a pull-down menu of selectable languages is displayed. Then, the target language can be selected from the pull-down menu of the language. In this embodiment, a target language can be selected from languages such as Japanese, English, Chinese, and Korean.

  In addition, in the input / output column M1 of the moving means, “walking” is normally selected. However, when the cursor is positioned in the input / output column M1 of the moving means, a pull-down menu of selectable moving means is displayed. And the target moving means can be selected from the pull-down menu of the said moving means. In this embodiment, the desired moving means can be selected from walking, bicycle, motorcycle, and automobile.

  In the user terminal device 1 of this embodiment, the control unit 102 acquires the current position from the GPS unit 106 and displays this in the output (display) column S1 of the latitude and longitude of the departure place. Further, the control unit 102 transmits the latitude and longitude of the departure place to the route guidance message providing device 3 through the wireless communication unit 101, and the address of the place corresponding to the latitude and longitude of the departure place and the address place are transmitted. The map of the predetermined area including is acquired. Then, the acquired address of the departure place is displayed in the input / output column S2 of the address of the departure place, and the acquired map is displayed in the map display area AR1.

  By acquiring and displaying information regarding the departure place, information is output to the output (display) field S1 of the latitude and longitude of the departure place, the input / output field S2 of the name and address of the facility at the departure place, and the map display area AR1. Is displayed, and the user can identify and recognize the departure place. Note that the departure place can be changed by touching the position on the touch panel 108 corresponding to the actual departure place on the map displayed in the map display area AR1. Further, the current position can be acquired again from the GPS unit 106 by touching the touch panel 108 corresponding to the output (display) column S1 of the longitude and latitude of the departure place.

  Further, when the current position cannot be acquired from the GPS unit 106 for some reason, the position information from the portable terminal position information server 4 shown in FIG. 1 can be used. Alternatively, the name and address of the departure point facility are input to the input / output column S2 of the departure point facility via the touch panel 108, and the name and address of the departure point facility are transmitted to the route guidance message providing device 3 to obtain the latitude of the corresponding place. , The longitude can be obtained and used as the latitude and longitude of the departure place. In addition, when inputting the name and address of the facility of the departure place in the input / output column S2 of the name and address of the departure place, for example, it can be performed through a software keyboard displayed in the map display area AR1 portion or the like. .

  It is assumed that the information input in the input / output field S2 of the name and address of the facility at the departure place is not correct and the latitude and longitude of the departure place cannot be specified by the route guidance message providing device 3. In this case, an error message is provided from the route guidance message providing device 3 and displayed on the display unit 107. As a result, the user is notified that the input information is incorrect, and the information in the input / output field S2 of the name and address of the facility at the departure place can be re-input.

  Next, the control unit 102 receives input of the name and address of the destination facility in the input / output field E2 of the name and address of the destination facility through the touch panel 108. And the name and address of the facility of the received destination are transmitted to the route guidance message providing apparatus 3, and a map of a predetermined area including the latitude and longitude of the corresponding place and the destination is acquired. The destination facility name and address can be input through a software keyboard displayed in the map display area AR1, for example, as in the case of inputting the departure facility name and address.

  Then, the control unit 102 displays the latitude and longitude of the destination from the route guidance message providing device 3 in the output (display) column E1 of the latitude and longitude of the destination, and displays a map in the map display area AR1. Thereby, it is possible to confirm whether or not the destination designated by the user is correctly recognized. The information entered in the input / output field E2 for the name and address of the destination facility is not correct because the information entered in the input / output field S2 for the name and address of the departure facility is not correct. It is possible to input again by the same processing as in the case of.

  In addition, for example, when the destination address is specified by inputting the destination address, the destination may not be accurately shown because, for example, a plurality of buildings are built at the same address. . In such a case, the destination can be corrected by touching the correct destination on the map displayed in the map display area AR1.

  The confirmation input process is a process of accepting a selection operation for the “end” button and a selection operation for the “OK” button after all necessary information has been input. When the “end” button or the “OK” button is operated, information indicating that these are operated is also transmitted to the route guidance message providing apparatus 3. Then, after the departure point, the latitude and longitude of the destination, the language, and the moving means are specified in step S103, the control unit 102 determines whether or not the “end” button is selected in step S103. It discriminate | determines (step S104).

  Assume that it is determined in the determination process in step S104 that the “end” button has been selected. In this case, the control unit 102 performs predetermined end processing such as erasing the screen currently displayed on the display unit 107 and returning to the display before executing the route guidance application (step S105). The process shown in FIG.

  Further, it is assumed that in the determination process in step S104, it is determined that the “end” button has not been operated. In this case, the control unit 102 controls the provision request forming unit 111 to generate the route guidance message provision request shown in FIG. 2, and transmits it to the route guidance message providing device 3 through the wireless communication unit 101 (step S1). S106). In this step S106, the language, the moving means, the latitude and longitude of the departure place, the latitude and longitude of the destination specified by the input of information on the input screen shown in FIG. 5A are used.

  Thereafter, the control unit 102 receives the route guidance message and map information formed and transmitted in the route guidance message providing device 3 in response to the route guidance message provision request, through the wireless communication unit 101, and receives this. The information is displayed on the display unit 107 (step S107). FIG. 5B is a diagram for explaining a display screen of a route guidance message displayed in step S107. As shown in FIG. 5B, the display screen of the road guidance message shows the title of the application being executed, the road guidance message for the person who asked the road, and the route from the departure place to the place to be guided. A map and an “audio output” button and an “end” button are displayed.

  The user of the user terminal device 1 provides a route guidance message to a person who has asked for a route while looking at the display screen displayed as shown in FIG. 5B. If a language other than Japanese is selected, the route guidance message is expressed in the selected language. Then, the control unit 102 receives an operation input for the “voice output” button or the “end” button through the touch panel 108 (step S108).

  Then, the control unit 102 determines whether or not an operation input to the “voice output” button is accepted in step S108 (step S109). If it is determined in step S109 that an operation input to the “voice output” button has been received, the control unit 102 executes a process of outputting a voice message corresponding to the route guidance message received in step S107 (step S110). ).

  Specifically, in step S110, the control unit 102 converts the route guidance message received in step S107 into voice data for voice output, and supplies the voice data to the voice output unit 109. Since the audio output unit 109 converts the audio data into an audio signal and supplies the audio signal to the speaker 110, the audio corresponding to the route guidance message is emitted from the speaker 110.

  Thereby, even if the user of the user terminal device 1 does not directly read out the route guidance message, the route guidance message can be appropriately provided to the person who has asked the route by the voice output from the user terminal device 1. In particular, when the route guidance message is formed in a language other than Japanese, even if the user of the user terminal device 1 is unfamiliar with the language, the language used by the person who asked the way Can provide directions message. Then, after the process of step S110, the process from step S108 is repeated, and the operation input to the display screen of the route guidance message is repeated. Therefore, when necessary, it is possible to repeatedly output a route guidance message by operating the “voice output” button repeatedly.

  If it is determined in step S109 that no operation input for the “voice output” button has been received, the control unit 102 determines in step S108 whether an operation input for the “end” button has been received. (Step S111). Assume that it is determined in the determination process in step S111 that an operation input for the “end” button has been received. In this case, the control unit 102 executes a predetermined termination process for terminating the road guidance message provision process (step S112), and terminates the road guidance message provision process shown in FIG. If it is determined in the determination process in step S111 that an operation input for the “end” button is not received, the process from step S108 is repeated, and the process for receiving the operation input for the route guidance message providing screen is repeated.

  In this way, the user terminal device 1 requests the route guidance message providing device 3 to provide a route guidance message to a person who asks for a route by specifying the language, moving means, departure place, and destination. Thereby, the route guidance message which appropriately conveys the main points specialized in the route guidance can be acquired from the route guidance message providing device 3 and provided to the person who has asked the way.

[Processing of the route guidance message providing device 3]
Next, processing performed in the route guidance message providing device 3 will be described. FIG. 6 is a flowchart for explaining a process for providing a route guidance message or the like performed in the route guidance message providing apparatus 3. The process shown in FIG. 6 is a process that is always executed mainly by the control unit 302 of the route guidance message providing apparatus 3.

  In the route guidance message providing device 3, the control unit 302 receives access from the user terminal device 1 through the communication I / F 301 (step S201), and determines whether or not access from the user terminal device 1 has been received (step S201). Step S202). If it is determined in step S202 that the access from the user terminal device 1 is not accepted, the processing from step S201 is repeated, and the access from the user terminal device 1 is awaited.

  When it is determined in the determination process of step S202 that access from the user terminal device 1 has been received, the control unit 302 performs an information reception process for the user terminal device 1 (step S203). In step S203, the input screen shown in FIG. 5A is provided to the user terminal device 1. Furthermore, in step S203, the latitude and longitude of the departure place are received from the user terminal device 1, and the corresponding address and map are provided, and the destination name and address are provided. Processes such as providing latitude, longitude, and a map corresponding to. The information reception process in step S203 is performed until information indicating that the “end” button is operated or information indicating that the “OK” button is operated is transmitted from the user terminal device 1.

  Then, after the process of step S203, it is determined whether the information transmitted from the user terminal device 1 is information indicating that the “end” button has been operated (step S204). In the determination process of step S204, when it is determined that information indicating that the “end” button has been operated has been transmitted, the connection with the user terminal device 1 is released (step S209), and the process from step S201 is performed. repeat.

  When it is determined in the determination process in step S204 that information indicating that the “end” button has been operated has not been transmitted, the transmitted information is information indicating that the “OK” button has been operated. And the process proceeds to step S205. In this case, the control unit 302 receives the route guidance message provision request from the user terminal device 1 and supplies it to the request extraction unit 310 to provide the language, the moving means, the latitude of the departure place, the longitude, and the latitude of the destination. The longitude is extracted (step S205). The request extracting unit 310 provides the extracted information on the moving means, the latitude and longitude of the departure place, the latitude and longitude of the destination to the route search processing unit 311, and the language information to the route guidance message forming unit 312. To do.

  Thereafter, the control unit 302 controls the route search processing unit 311 to perform a route search from the departure point to the destination when moving by the moving means according to the request from the user terminal device 1 (step S206). In step S206, as described above, a route (route) from the departure point to the destination is searched using the road network DB 306 or the pedestrian network DB 307 and also using the map DB 304 and the POIDB 305. In this case, the route search processing unit 311 searches for a route that is easy to guide the route, such as a route with few corners or a route with many landmarks. The route information obtained as a result of this route search is notified to the route guidance message forming unit 312.

  Next, the control unit 302 controls the route guidance message forming unit 312 to identify a location to be guided according to the complexity of the route searched by the route search processing unit 311 and head to the location to be guided. A route guidance message is generated so as to enable the user to perform the operation (step S207). Specifically, in step S207, the route guidance message is formed in consideration of information such as the moving means, the distance from the departure point to the destination, the number of nodes passing (passing), the number of characters of the route guidance message. .

  As described above, when the searched route from the departure point to the destination is simple and the route guidance message to the destination is not complicated, the destination is a place to be guided. However, when the route from the starting point to the destination is complicated and the route guidance message to the destination becomes complicated, a place suitable for asking the next route on the route (intermediate position) Is specified as a place to be guided. Then, the route guidance message forming unit 312 forms a route guidance message to the specified location to be guided.

  When the information indicating the language from the request extracting unit 310 is other than Japanese, the route guidance message forming unit 312 converts the formed Japanese route guidance message into the corresponding language translation dictionary 309 (1),... Translate to the indicated language using. Then, the translated route guidance message is to be provided.

  Then, the control unit 302 controls the message providing unit 313 to display the route guidance message formed by the route guidance message forming unit 312 and the map of the route from the departure place to the location to be guided, and the user terminal that is the request source. This is provided to the device 1 (step S208). Here, map information is acquired from map DB304. Thereafter, the control unit 302 releases the connection with the user terminal device 1 that has transmitted the route guidance message provision request (step S209), and thereafter repeats the processing from step S201.

  As described above, the route guidance message providing device 3 searches for a route from the departure place to the destination in response to a request from the user terminal device 1. Then, based on the searched route, a route guidance message is formed so that the route guidance can be performed to the person who asks for the route in a proper manner, map information is also acquired, and these are obtained as user terminal devices. 1 can be provided.

[Effect of the embodiment]
The user terminal device 1 and the route guidance message providing device 3 cooperate with each other to form a route guidance message that makes it possible to guide the route well for the person who has asked the route. It can be performed. That is, it is possible to realize a navigation system of an unprecedented form of use that can easily convey the main points to the place to be guided by verbal or voice output. Thus, appropriate route guidance can be performed so that a person who asks for a route does not get lost or uneasy. In addition to providing appropriate route guidance depending on the means of transportation, it also has a translation function for route guidance messages, so it is possible to provide route guidance appropriately to foreigners who have asked for directions. it can.

[Modification]
In the above-described embodiment, the route guidance message providing system including the user terminal device 1 and the route guidance message providing device 3 has been described. However, the present invention is not limited to this. If the user terminal device 1 has the function of the route guidance message providing device 3 in the embodiment described above, a route guidance message providing device that functions in a stand-alone manner can be realized. Specifically, a map DB 304, POIDB 305, road network DB 306, pedestrian network DB 307, template DB 308, translation dictionary 309 (1),... Just do it. In this case, the route guidance message providing apparatus can be configured by a notebook PC or a tablet PC.

  In this case, it is not realistic to have the map DB 304, POIDB 305, road network DB 306, and pedestrian network DB 307 for a wide area. Therefore, necessary map data, POI data, road network data, and pedestrian network data are acquired in accordance with the departure point and the destination. The data may be stored and used in the map DB 304, POIDB 305, road network DB 306, and pedestrian network DB 307.

  In the above-described embodiment, the function of translating the route guidance message is provided on the side of the route guidance message providing apparatus 3, but the present invention is not limited to this. The user terminal device 1 may have a function of translating the route guidance message. The user terminal device 1 or the route guidance message providing device 3 transmits a Japanese route guidance message to a predetermined translation site, and acquires the route guidance message translated into the target language at the translation site. It can also be.

  Although omitted in FIG. 2, the route guidance message provision request includes identification information such as an IP address that identifies the user terminal device 1. Thereby, the route guidance message providing device 3 can specify from which user terminal device 1 the received route guidance message provision request is from, and can appropriately provide a route guidance message or the like corresponding to the request to the request source.

  Further, the function of the provision request forming unit 111 of the user terminal device 1 can be realized as a function of the control unit 102 by software executed by the control unit 102. Each function of the request extraction unit 310, the route search processing unit 311, the route guidance message forming unit 312, and the message providing unit 313 of the route guidance message providing apparatus 3 is controlled by software executed by the control unit 302. It can also be realized as a function.

As can be seen from the description of the above-described embodiment, the means of the route guidance message providing device according to claim 1 is associated with the respective units of the route guidance message providing device 3 of the embodiment as follows. . That is, the function of the communication means is the communication I / F 301, the function of the extraction means is the request extraction unit 310, the function of the search means is the route search processing unit 311, and the function of the formation means is the route guidance message forming unit 312. The function of providing means is realized by the message providing unit 313.

Moreover, it is as follows when each means of the portable communication terminal in Claim 1 and each part of the user terminal device 1 of embodiment are matched. That is, the function of the communication unit is the wireless communication unit 101, the function of the current position positioning unit is the GPS unit 106 , the function of the reception unit is the touch panel 108, the function of the request unit is the provision request forming unit 111, and the output control unit The function is realized by the control unit 102 .

  The function of the map information acquisition means of the route guidance message providing device according to claim 3 is realized by the message providing unit 313 of the route guidance message providing device 3. Further, the function of the voice output means of the portable communication terminal according to claim 4 is realized by the voice output unit 109 and the speaker 110 of the user terminal device 1. Further, the function of the translation means on the side of the route guidance message providing apparatus in claim 5 is realized by the road guidance message forming unit 312 and the function of the translation means on the mobile communication terminal side is not shown, but the dedicated translation means Or the control unit 102 realizes the function of the translation means.

  The route guidance message providing device of the present invention corresponds to the route guidance message providing device 3 of the embodiment, and the mobile communication terminal of the present invention corresponds to the user terminal device 1 of the embodiment. In addition, as described above, the road guidance message providing apparatus of the present invention includes the map DB 304, POIDB 305, road network DB 306, pedestrian network DB 307, template DB 308, translation dictionary 309 (1),. A route search processing unit 311 and a route guidance message forming unit 312 are provided.

  The route guidance message providing method according to the present invention corresponds to the method shown in FIGS. Furthermore, the route guidance application executed on the user terminal device 1 is a program for executing the processing shown in FIG. The route guidance message providing program executed by the route guidance message providing device 3 is a program for executing the processing shown in FIG.

  DESCRIPTION OF SYMBOLS 1 ... User terminal device, 101 ... Wireless communication part, 101A ... Transmission / reception antenna, 102 ... Control part, 103 ... Memory | storage device, 104 ... Operation part, 105 ... Time control part, 106 ... GPS part, 106A ... GPS antenna, 107 ... Display unit 108 ... Touch panel 109 ... Audio output unit 110 ... Speaker 111 ... Provision request forming unit 2 ... Network 3 ... Route guidance message providing device 301 ... Communication I / F 302 ... Control unit 303 ... Storage device 304 ... Map DB 305 ... POIDB 306 ... Road network DB 307 ... Pedestrian network DB 308 ... Template DB 309 ... Translation dictionary 310 ... Request extraction unit 311 ... Route search processing unit 312 ... Route guidance message forming unit, 313 ... Message providing unit, 4 ... Mobile terminal location information server

Claims (8)

A route guidance message providing system configured by connecting a route guidance message providing device and a mobile communication terminal through a network,
The mobile communication terminal is
A communication means for communicating through the network;
Current position positioning means for measuring the current position;
Accepting means for accepting operation input;
The route guidance includes the destination, the moving unit, and the current position measured by the current position positioning unit when the destination to be routed and the moving unit to the destination are received through the receiving unit. Requesting means for forming a message providing request and providing the route guidance message providing device through the communication means;
Output control means for controlling to receive the route guidance message provided from the route guidance message providing apparatus in response to the route guidance message provision device through the communication means and to output through the output means; and
The route guidance message providing device includes:
A communication means for communicating through the network;
Receiving means for providing the route guidance message from the portable communication terminal through the communication means, and extracting means for extracting the current position, the destination, and the moving means included in the route guidance message provision request;
Search for a route for route guidance that is extracted by the extracting unit when moving from the current position to the destination by the moving unit and that has a small turn or a lot of landmarks. Search means;
When following the route for route guidance obtained as a result of the search by the search means, a limited number of characters for guiding the destination or a halfway position before the destination on the route for route guidance Forming means for forming a route message;
Providing means for providing the route guidance message formed by the forming means to the mobile communication terminal as a request source;
With
The forming means considers the destination on the route guidance route in consideration of the moving means, the distance from the current position of the route guidance route to the destination, and the number of nodes passing through. A route guidance message providing system that identifies the midway position in front of the ground . The route guidance message providing system according to claim 1 ,
The route guidance message providing device includes:
Comprising map information acquisition means for acquiring map information related to the route obtained as a result of the search;
The providing means of the route guidance message providing device provides the acquired map information to the requesting mobile communication terminal together with the route guidance message.
The route guidance message providing system, wherein the output control means of the portable communication terminal controls to output a map corresponding to the map information in addition to the route guidance message through the output means. The route guidance message providing system according to claim 1 or 2 , wherein
The output means of the mobile communication terminal includes voice output means, and the output control means can control the route guidance message so that it can be output as voice through the voice output means. A route guidance message providing system characterized by this. A route guidance message providing system according to claim 1, claim 2, or claim 3 , wherein
One of the route guidance message providing device and the mobile communication terminal includes a translation unit that translates the route guidance message provided or the received route guidance message into an instructed language. A route guidance message providing system for outputting a message through the output means of the portable communication terminal. The route guidance message providing device of the route guidance message providing system configured by connecting a route guidance message providing device and a mobile communication terminal through a network,
A communication means for communicating through the network;
An extraction means for receiving a road guidance message provision request from the portable communication terminal through the communication means, and extracting a current position, a destination, and a movement means included in the road guidance message provision request;
Search for a route for route guidance that is extracted by the extracting unit when moving from the current position to the destination by the moving unit and that has a small turn or a lot of landmarks. Search means;
When following the route for route guidance obtained as a result of the search by the search means, a limited number of characters for guiding the destination or a halfway position before the destination on the route for route guidance Forming means for forming a route message;
Providing means for providing the route guidance message formed by the forming means to the mobile communication terminal as a request source;
With
The forming means considers the destination on the route guidance route in consideration of the moving means, the distance from the current position of the route guidance route to the destination, and the number of nodes passing through. A route guidance message providing apparatus that identifies the midway position before the ground . The portable communication terminal of the route guidance message providing system configured by connecting a route guidance message providing device and a portable communication terminal through a network,
The route guidance message providing device receives a route guidance message provision request from the mobile communication terminal through a communication unit, extracts a current position, a destination, and a movement unit included in the route guidance message provision request, The route obtained when the route obtained from the search is searched for a route for moving from the current position to the destination by the moving means, which is a route with few turns or a route with many landmarks. When following the route for guidance, the route for route guidance is considered in consideration of the moving means, the distance from the current position of the route for route guidance to the destination, and the number of nodes passing through. identify the middle position of the front of the destination of the above, a limited number of directions message for guiding to said intermediate position in front of the destination of the path of the for destination or the navigation directions Form, there is provided a formed the guidance message to the requesting said mobile communication terminal,
A communication means for communicating through the network;
Current position positioning means for measuring the current position;
Accepting means for accepting operation input;
The route guidance includes the destination, the moving unit, and the current position measured by the current position positioning unit when the destination to be routed and the moving unit to the destination are received through the receiving unit. Requesting means for forming a message providing request and providing the route guidance message providing device through the communication means;
Output control means for controlling to receive the route guidance message provided from the route guidance message providing device in response to the route guidance message provision device through the communication means and to output through the output means. A personal digital assistant characterized by Current position positioning means for measuring the current position;
Accepting means for accepting operation input;
When receiving the destination to be route guidance through the receiving means and the moving means to the destination, the current position is measured by the current position positioning means, from the measured current position to the destination, Search means for searching for a route for route guidance, which is a route when moving by the moving means, and is a route with few corners or a route with many marks,
When following the route for route guidance obtained as a result of the search by the search means, a limited number of characters for guiding the destination or a halfway position before the destination on the route for route guidance Forming means for forming a route message;
Output control means for controlling to output the route guidance message formed by the forming means through output means;
With
The forming means considers the destination on the route guidance route in consideration of the moving means, the distance from the current position of the route guidance route to the destination, and the number of nodes passing through. A route guidance message providing apparatus that identifies the midway position before the ground . A route guidance message providing method used in a route guidance message providing system configured by connecting a route guidance message providing device and a mobile communication terminal through a network,
In the mobile communication terminal,
An accepting step for accepting an operation input through accepting means;
When the requesting unit receives the destination to be route-guided through the receiving step and the moving unit to the destination, the destination includes the destination, the moving unit, and the current position measured by the current position positioning unit. Forming a route guidance message provision request and providing the route guidance message providing device to the route guidance message providing device through communication means;
Output control for receiving the route guidance message provided from the route guidance message providing device in response to the route guidance message provision request through the communication means and controlling the output control means to output through the output means. A process and
The route guidance message providing device includes:
An extraction step in which the extraction means receives the road guidance message provision request from the portable communication terminal through the communication means, and extracts the current position, the destination, and the movement means included in the road guidance message provision request. When,
A route for route guidance, which is a route when the search means moves from the current position to the destination by the moving means, which is extracted in the extraction step, and which has a small turn or a lot of landmarks. Search means for searching for,
A restriction that guides the destination or a halfway position before the destination on the route guidance route when the formation unit follows the route guidance route obtained as a result of the search by the search unit. Forming a route guidance message of the number of characters made,
Providing means for providing the route guidance message formed in the forming step to the requesting mobile communication terminal; and
In the forming step, the destination on the route guidance route is considered in consideration of the moving means, the distance from the current position of the route guidance route to the destination, and the number of nodes passing through. A method for providing a route guidance message, characterized in that the intermediate position before the ground is specified .

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