JP2012185181A - Route guiding system, route searching server used for route guiding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To present a guidance route from a current position to a prescribed registered route.SOLUTION: In a route guiding system, a route searching server and a portable terminal device is connected via a network. The route guiding system includes a storage device for storing a prescribe route (my route). The portable terminal device detects a current position. The route searching server finds the route from the current position to my route, edits guidance route information based on the route, and transmits it to the portable terminal device. Then the portable terminal device displays the guidance route information.

Description

The present invention relates to a communication type route guidance system, and a route search server and a mobile terminal device used in the route guidance system.

Conventionally, navigation systems that search for a route from a desired departure point to a destination and perform route guidance have been widely used. As such a navigation system, an in-vehicle navigation system mounted on an automobile, a navigation system for a pedestrian who moves using walking and transportation, and the like are known. A system for displaying a map of the vicinity based on the current position is also known. Recently, a communication type system that uses a portable terminal device such as a cellular phone and downloads a guide route or a map from a predetermined information distribution server, a route search server, or the like is widely used as these systems.

In recent years, it has been considered to use such a navigation system in a disaster. For example, Patent Document 1 describes a navigation system capable of performing route guidance such as a map, route guidance, and return home support when the mobile terminal device cannot communicate with a server. In Patent Document 1, a map from a desired location registered in advance, such as a work location to a home, and a desired location, an evacuation route, a guidance route for returning home, and the like are downloaded from a route search server during normal times, and are carried offline during a disaster. It can be displayed on the terminal device.
JP 2007-147340 A

By the way, the above-mentioned conventional navigation system is designed to present an optimum route from the departure point to the destination, and is very convenient for reaching the destination by the optimum route.

However, in some cases, it is not important to go to the destination by the optimal route, but rather, it may be desired to go to a route that the user knows well. For example, in case of emergency such as a disaster,
Walking on a road you don't know is anxious, but you can rest assured if you get to the road you know, and if you get to the road you know, you can reach your destination, such as your home, without relying on the navigation system. I can go home. In this way, instead of guiding the route from the current location to the destination such as home, the route from the current location to the road that the person knows well (such as the route from the company to the home) is used May be convenient for the user.

Also, in the event of an emergency such as a disaster, when using a mobile phone as a terminal device for navigation, it is necessary to prevent battery consumption of the mobile phone as much as possible so that the mobile phone can keep in touch with family members. is there.

The present invention has been made in view of such circumstances, and has as its main object to provide a route guidance system capable of presenting a guidance route from a current position to a predetermined route registered for each user. To do. It is another object of the present invention to provide a route guidance system capable of passing a predetermined route registered for each user when presenting a guidance route from a current position to a destination.

In order to solve the above problems, in the route guidance system according to the present invention, a route search server and a mobile terminal device are connected via a network. A storage device that stores a predetermined route (my route) is provided in at least one of the route search server and the mobile terminal device. The portable terminal device includes position detection means for detecting the current position, and display means for displaying the guide route information received from the route search server. Further, the route search server includes a route search unit that searches for a route from the current position detected by the position detection unit to the My Route stored in the storage device, and a guide route based on the route searched by the route search unit. Distribution data editing means for editing the information and transmitting the guide route information to the mobile terminal device.

The route search server according to the present invention preferably stores, in the storage device, a route frequently used by the user as a my route using the history information of the current position detected by the position detecting means.

A route search server according to the present invention is a route search server connected to a mobile terminal device via a network, and a predetermined route registered in a storage device (my address) from a current position detected by a position detection unit. Route search means for searching for a route to the route), and distribution data editing means for editing the guide route information based on the route searched by the route search means and transmitting the guide route information to the portable terminal device. . The mobile terminal device includes a position detection unit that detects a current position, a display unit that displays guide route information received from the route search server,
Is provided.

Here, preferably, the mobile terminal device receives the guidance route information in the background from the route search server and stores it in the temporary storage unit, and stores it in the temporary storage unit in response to an instruction from the user. The guide route information is read out and displayed on the display means. According to this invention, even if it becomes a state where it cannot communicate with the route search server at the time of a disaster, the user can confirm the guide route to the My Route.

Preferably, the mobile terminal device receives the guide route information from the route search server in accordance with a user instruction and displays it on the display means. According to this invention, when a user desires, the guidance route to my route can be acquired.

More preferably, the route search means obtains an optimum route between the current position and each node on the My Route for each node, and based on the optimum route obtained for each node, the optimum route from the current position to the My Route is obtained. Search for a route.

According to this invention, based on the My Route registered in the storage device for each user, the guide route information from the current position to the My Route can be presented to the mobile terminal device. As a result, the user can quickly reach a well-known road. This is especially effective when you want to get to a well-known road more quickly than when you reach the destination with an optimal route, such as during a disaster.

Preferably, after receiving the guidance route information from the route search server, the mobile terminal device disconnects the communication session with the route search server. According to this invention, in the communication type route guidance system in which the route search server and the mobile terminal device are connected via a network,
It is possible to reduce the load on the route search server and the mobile terminal device and prevent the battery and the like from being consumed. In other words, after the mobile terminal device receives the guidance route, communication between the mobile terminal device and the route search server is not performed, so that unnecessary battery consumption can be prevented. It is.

The route guidance method according to the present invention is a route guidance method in a route guidance system in which a route search server and a mobile terminal device are connected via a network. A registration step for storing the My Route in the storage device, a position detection step for the mobile terminal device to detect the current location, and a route search server for the My Location stored in the storage device from the current location detected in the position detection step. A route search step for searching for a route to the route, and a distribution data editing step in which the route search server edits the guide route information based on the route searched in the route search step and transmits the guide route information to the mobile terminal device. And a display step of displaying the guidance route information received from the route search server.

The route search method according to the present invention is a route search method in a route search server connected to a mobile terminal device via a network. The reception step for receiving the current position detected by the position detection means, the route search step for searching the route from the current position received in the reception step to the My Route registered in the storage device, and the route search step An editing step for editing the guide route information based on the route, and a transmission step for transmitting the guide route information to the portable terminal device. The mobile terminal device includes position detection means for detecting the current position, and display means for displaying the guidance route information received from the route search server.

The program of the present invention causes a computer to execute each processing step of the route search method of the present invention. The program of the present invention can be installed or loaded on a computer through various recording media such as an optical disk such as a CD-ROM, a magnetic disk, or a semiconductor memory, or via a communication network.

In the present specification and the like, “my route” means a predetermined route registered for each user on the route guidance system. In the route guidance system, it is preferable that the user can register the designated route as my route by designating an arbitrary route (route). It is further preferable that the route guidance system can automatically extract a predetermined route that is judged to be well known by the user by analyzing the history of navigation. Furthermore, the my route is not necessarily a single route, and may include a plurality of routes. At this time, a plurality of routes are collectively registered in the route guidance system as each user's My Route. Here, when a plurality of routes are included in a user's My Route, the plurality of routes may be connected to each other, and each route is located independently without being connected to each other. May be.

Further, at the beginning of this specification, “means” does not simply mean physical means,
This includes the case where the function of the means is realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.

According to the present invention, it is possible to provide a route guidance system capable of presenting a guidance route from a current position to a predetermined route registered for each user. Further, in a communication type route guidance system in which a route search server and a mobile terminal device are connected via a network, the load on the route search server and the mobile terminal device can be reduced, and unnecessary consumption of a battery or the like can be prevented. it can.

In addition, a route that can be routed through a predetermined route registered for each user when presenting a guide route from the current position to the destination by performing my route search processing in the direction of the destination. A guidance system can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted.

FIG. 1 is a block diagram showing a schematic configuration of a route guidance system 100 according to an embodiment of the present invention. As shown in FIG. 1, the route guidance system 100 includes a route search server 10 and a mobile terminal device 20, and is configured by connecting them together via a network N.

The route search server 10 is a server computer for performing route search processing. Similar to a general navigation server, the main control unit 11, the communication unit 12, and the route search unit 13.
, Distribution data editing means 14, storage device 15, guidance data 16, map data 17, road network data 18, and my route data 19.

The main control unit 11 is configured by a processor having a RAM, a ROM, and the like, and controls the operation of each unit by a control program stored in the ROM or the like. The communication means 12 is connected to the network N
This is an interface for communicating with the mobile terminal device 20 via the network.

The route search means 13 has a function of searching for an optimum route by referring to the search network data such as the road network data 18 in accordance with the route search condition transmitted from the mobile terminal device 20. At this time, the optimum route can be searched by sequentially searching for a link from the node at the departure point to the node at the destination, and following the link having the smallest cost information on the link as a guide route. As such a route search method, a known method such as a label determination method or a Dijkstra method may be used. In this embodiment, the “optimal” route is
This means that the cost information from the starting point to the destination is minimal. In addition, link cost information can be set according to the purpose, such as a distance, fee, required time, other parameters, and any combination of various parameters.

The delivery data editing unit 14 has a function of editing the optimum route obtained as a result of the search into guide route data for delivery to the mobile terminal device 20. In addition, the edited guide route data
A function of transmitting to the mobile terminal device 20 via the communication unit 12 is provided.

When editing the guide route data, in the case of a disaster or the like, the map data 17 is not incorporated and only the road network data 18 is used, and the route information from the current position to the My Route and the relevant route are displayed. The guide route data including at least attribute information such as the intersection at the position may be edited and transmitted to the mobile terminal device 20. Thereby, since the information amount communicated between the route search server 10 and the portable terminal device 20 can be reduced, the route search server 1
0 and the load on the mobile terminal device 20 can be suppressed.

The storage device 15 is a storage device that includes guidance data 16, map data 17, road network data 18, and my route data 19.

Guidance data 16 is a database in which data such as voice patterns for guiding left and right turns at branch nodes such as intersections is stored. Guidance data corresponding to each branch node included in the guidance route is stored in the distribution data editing means 14. When edited, it is combined with the guide route data.

  The map data 17 is map data configured by a vector method, a raster method, or the like.

The road network data 18 includes road intersections, inflection points, end points, etc. as nodes, links between the nodes as links, node data (node latitude and longitude), link data (link numbers), all The database includes link cost data related to link cost information (distance and required time).

The my route data 19 is a database in which each user's my route is accumulated, and a user identifier for uniquely identifying each user and the user's my route are recorded in association with each other.

The mobile terminal device 20 is a mobile phone, a PDA, a portable navigation device, a notebook computer, or other portable terminal device, and includes a main control unit 21, a communication unit 22, and a GPS processing unit 2.
3. Route guidance request means 24, route registration means 25, temporary storage means 26, input means 27, and display means 28 are provided.

The main control unit 21 is configured by a processor having a RAM, a ROM, and the like, and controls the operation of each unit by a control program stored in the ROM or the like. The communication means 22 is connected to the network N
It is an interface for communicating with the route search server 10 via

The GPS processing unit 23 has a function as position detection means for detecting the current position, receives a GPS satellite signal by a GPS receiver, and measures the current position (latitude and longitude) of the mobile terminal device 20. In addition, by providing a gyro sensor, a geomagnetic sensor, etc., the current position of the mobile terminal device 20 can be measured by autonomous navigation, and when the GPS receiver cannot be determined from the GPS satellite signal, the current position is measured instead. can do.

The route guidance request unit 24 uses the route search server 1 to determine the route search condition input by the user.
A function of editing data to be transmitted to 0 and transmitting the data to the route search server 10 via the communication unit 22 is provided. In the present invention, for example, a route search process for searching for a route from the current position to the route is requested, or a route search from the current position to a predetermined destination is made as much as possible through the route. Or you can ask to do it. For example, when a disaster occurs, the user requests the route search server 10 to perform the my route search process via the menu screen of the mobile terminal device 20 or the like. Note that a dedicated key for making a myroute search request may be provided in the mobile terminal device 20. Also, at normal times, every predetermined time, or
The mobile terminal device 20 may perform my route search processing in the background irregularly.
In this case, the mobile terminal device 20 stores the guide route received from the route search server 10 in the temporary storage unit 26 and stores it in the temporary storage unit 26 without communicating with the route search server 10 when a disaster occurs. The guide route that has been read may be read out and displayed on the mobile terminal device 20.

The route registration unit 25 has a function of registering an arbitrary route as a my route in the storage device 15 of the route search server 10. At this time, an arbitrary route designated by the user may be registered, or a route determined to be well known by the user is extracted by using history information of the GPS positioning result. You may make it register. As my route information, it is preferable to register information of each node existing on the my route, but other methods may be adopted. Typically, it is assumed that a route that is well known by the user, such as a route from the company to the home, is registered as the My Route. When the user registers my route in advance, the optimum route from the current position to my route can be searched. In this example,
When a disaster occurs, the optimal route from the current location to My Route is displayed offline.

When registering a My Route by the user's designation, the user displays the map read from the route search server 10 on the display means 28 and designates a predetermined route on the map by the input means 27 so that the My Route is displayed. The route search server 10 searches for the optimum route from one point to another (for example, from the company address to the home), and registers the route presented to the user as a my route. Also good. In this embodiment, registered My Route information, that is, node information on My Route, is recorded and managed in the storage device 15 of the route search server 10 in association with user identification information. Recording and management may be performed by a storage device (not shown) included in the mobile terminal device 20.

In addition, when automatically registering a My Route using history information of GPS positioning results,
From the history information of the positioning result acquired by the PS processing unit 23, a route that has been passed in the past is known. Based on this, the degree of idiosyncratic route for each route between nodes is calculated, and a route with high idiosyncratic degree is obtained. Collect and extract as My Route. At this time, the route having a high number of uses is adjusted to have a high degree of usage, and the route having a low number of uses is adjusted to have a low usage. Also, the route with the new usage date and time is adjusted so that the degree of usage is high, and the route with the old usage date and time is low in usage.

The temporary storage means 26 stores distribution data such as guidance routes, maps, and guidance data distributed from the route search server 10. These distribution data are read from the temporary storage means 26 as necessary and displayed on the display means 28.

The input means 27 is for user operation and input, and includes numeric keys, alphabet keys, other function keys, selection keys, scroll keys, and the like. A touch panel may also be used. A desired menu is selected from a menu screen displayed on the display means 28 as output means, and various input operations are performed by operating keys and the like.

The display means 28 displays a menu screen, a searched guidance route, and the like. When a user requests a route search to the route search server 10, the input means 27 is operated, a service menu screen or a predetermined input screen is displayed on the display means 28, and route search conditions such as a departure place and a destination are set. input. When the current position is selected as the departure place, the current position measured by the GPS processing unit 23 is used as the departure place. Further, when a disaster occurs, the guide route to the My Route acquired in the background is displayed on the display means 28 in accordance with a user instruction.

The network N is a communication line for transmitting and receiving information between the route search server 10 and the mobile terminal device 20. For example, it may be any of the Internet, a LAN, a dedicated line, a packet communication network, a telephone line, a corporate network, other communication lines, combinations thereof, and the like, regardless of whether they are wired or wireless.

Next, an outline of the operation of the route guidance system 100 configured as described above will be described.

The mobile terminal device 20 normally transmits the positioning result of the current position by the GPS processing unit 23 to the route search server 10 in the background, and receives the route search result from the current position to the destination from the route search server 10. . And the guidance route to the destination is given to the mobile terminal device 2
A normal route searching process of displaying on 0 display means 28 is performed.

Further, in the present embodiment, a process of searching the route search server 10 for a route from the current position of the mobile terminal device 20 to the my route (hereinafter referred to as “my route search process”) is performed.
The my route search process is executed in accordance with the background or the user's instruction, and the mobile terminal device 20 can display the guide route to the my route.

FIG. 2 is a flowchart showing an example of my route search processing by the route guidance system 100. It is assumed that the user's My Route is registered in advance.

First, the mobile terminal device 20 transmits an instruction to execute a my route search process to the route search server 10 in accordance with a predetermined rule or an instruction from the user, and the user's identifier and information on the current position. And transmitted to the route search server 10 (S31). The user identifier may be a member ID for using the route search service, an ID unique to the mobile terminal device 20, or the like. Further, the information on the current position uses the result of positioning by the GPS processing unit 23.

As an opportunity to start the my route search process, the mobile terminal device 20 is based on a predetermined rule.
May automatically start the my route search process, or may start the my route search process when instructed by the user.

In order to automatically start the my route search process, for example, the my route search process is executed at regular intervals, or the my route search process is executed when passing through an intersection. It is preferable to execute the route search process in the background. In this case, even when the route search server 10 and the mobile terminal device 20 cannot communicate when a disaster occurs, by reading and displaying the result of the most recently executed my route search process,
The user can confirm the route from the vicinity of the current position to My Route.

Moreover, when starting my route search processing based on an instruction from the user, for example,
An instruction to perform the my route search process is input from the user via the menu screen of the mobile terminal device 20 or the like. In this case, when the user desires, the route from the current position to My Route can be confirmed.

When the route search server 10 receives the execution instruction of the my route search process, the mobile terminal device 2
Using the user identifier received from 0 as a key, from the My Route data 19 of the storage device 15,
The user's My Route registered in advance is read (S32).

If the mobile terminal device 20 records and manages the My Route, step S3
1, the information of my route is also transmitted to the route search server 10, and step S <b> 32 may be omitted.

Next, an arbitrary one of a plurality of nodes on the My Route read out in Step S32 is selected, and an optimum route between the node and the current position received from the mobile terminal device 20 is searched (
S33). In this route search process, a known route search algorithm such as the Dijkstra method may be used to search for a path having the smallest cost information from the path from the current position to the node.

Thereafter, it is confirmed whether or not the optimal route with the current position has been searched for all nodes on the My Route (S34). If a node that has not yet been searched for the optimum route (hereinafter referred to as “unsearched node”) remains (S34: NO), the process returns to step S33 to return to the optimum route between the unsearched node and the current position. Explore.

In this way, the optimum route search between each node on the My Route and the current position is repeated, and when the optimum route to the current position is searched for all the nodes on the My Route (S34: YES)
) The route with the smallest cost information is extracted from the optimum routes obtained for all the nodes on the My Route, thereby determining the guide route from the current position to the My Route (S35).

That is, my route M is composed of n nodes (N1, N2,... Nn),
If the optimal route from the current position to the My route M is the optimal route from the current position to the node Nx on the My Route M, the cost information on the optimal route from the current position P to the Node Ni is represented by C (P, Ni ), The following equation holds.
C (P, Nx) ≦ C (P, Ni) (i = 1, 2,..., N)

As will be described later, a plurality of routes may be extracted not only with the smallest cost information but under a predetermined condition. In this case, a plurality of guide routes from the current position to the My Route may be presented. Is possible.

The route search server 10 edits the guide route data based on the guide route determined in step S35 and transmits it to the mobile terminal device 20 (S36). When receiving the guidance route data, the mobile terminal device 20 stores the guidance route data in the temporary storage unit 26 and then disconnects the communication session with the route search server 10.

Thereafter, the portable terminal device 20 reads the guide route data stored in the temporary storage unit 26 and displays the guide route to the My Route on the display unit 28 (S37). At this time, when the my route search process is executed in the background, the guide route data is temporarily stored in the temporary storage means 26 by the user operating the menu screen of the mobile terminal device 20 in the event of a disaster. It is preferable to display the guide route on the display means 28. Also,
When the my route search process is executed according to the user's instruction, it is preferable that the mobile terminal device 20 displays the guide route on the display means 28 immediately after receiving the guide route from the route search server 10.

7 and 8 are diagrams showing an example of a navigation screen displayed on the display means 28. FIG. Here, a case where two my routes M1 and M2 are registered in advance is shown. FIG. 7 shows an example in which my routes M1 and M2, the current position P, and the route search result R are displayed superimposed on the map data. FIG. 8 is an example of displaying my routes M1 and M2, the current position P, and the route search result R without being superimposed on the map data. As shown in FIGS. 7 and 8, the display screen of the my route search result includes at least my route M (here, M1 and M2), the current position P, and the route search result R. Further, the my routes M1 and M2, the current position P, and the route search result R are displayed separately so as to be identified on the display screen.

When a plurality of my routes are registered, the user can select an arbitrary my route from the plurality of my routes and perform a my route search process. For example, in the example shown in FIG. 7, the user can select any one of My Route M1 or My Route M2 and perform a route search to the selected My Route M1 or M2.

In this way, the user of the mobile terminal device 20 can browse the optimum guide route for reaching the My Route registered in advance from the current position offline. G even during a disaster
Since PS can be used, by positioning with the GPS processing unit 23 of the mobile terminal device 20,
You can navigate to My Route offline.

3 to 6 are schematic diagrams illustrating an example of the result of the my route search process. It is assumed that the user has registered the route from the company X to the home Y as My Route M in advance. Here, it is assumed that the My Route M is composed of n nodes (N1, N2,... Nn), the node located in the company X is N1, and the node located in the home Y is Nn.

FIG. 3 is a diagram showing an example in the case of guiding from the current position P1 to any place on the My Route M. In the example shown in FIG. 3, the case where the route Ra to the node Na on the My Route M is presented as a guide route is shown. At this time, the following equation holds.
C (P1, Na) ≦ C (P1, Ni) (i = 1, 2,..., N)

FIG. 4 is a diagram illustrating an example of direct guidance from the current position P2 to the home Y, which is the destination, without guidance to the My Route M. At this time, the route Rn to the node Nn located in the home Y is presented as the guide route, and therefore the following equation is established.
C (P2, Nn) <C (P2, Ni) (i = 1, 2,..., N−1)

FIG. 5 is a diagram illustrating an example when the current position P3 is far away. As an example of this,
For example, as you can imagine when Marunouchi to Toranomon are registered as My Route and the user is in Hakone, the guide route from the current location to My Route and the route to Toranomon, the destination Is not substantially different. Therefore, when the current position is far away, the guide route from the current position P3 to the My route, the guide route to the destination, or both of them are presented according to the user setting.

FIG. 6 is a diagram illustrating an example when a plurality of guide routes from the current position P4 to My Route M are presented. In the example shown in FIG. 6, the optimum route from the current position P4 to My Route M is via the node Nb. At this time, the following equation holds.
C (P4, Nb) ≦ C (P4, Ni) (i = 1, 2,..., N)

However, since the node Nb is far from the destination home Y (cost information is large), the sum of the cost information from the current position P4 to the destination is not necessarily optimal. On the other hand, in the case of passing through the node Nc, the route from the current position P4 to the My Route M is not necessarily optimal, but it can be said to be the optimal route considering the entire cost information to the destination. At this time, the following equation holds.
C (P4, Nc) + C (Nc, Nn) ≦ C (P4, Ni) + C (Ni, Nn) (i = 1
, 2, ..., n)

At such time, the route search server 10 determines the route Rb from the current position P4 to the node Nb.
And two routes Rc to the node Nc may be presented.

FIG. 9 is a diagram illustrating an example in the case of presenting a guide route that reaches the destination from the current position via My Route. When searching for a route to the destination, the route to be drawn into the My Route is presented to the user by performing the My Route search process in the direction of the destination G when the route is deviated from the My Route.

For example, in the example shown in FIG. 9, by first performing a my route search process from the current position P toward the destination G, a route R1 to be drawn into the my route M3 is presented to the user. Thereafter, when the user passes through the route M3 and reaches the point P1, the route R2 to be drawn into the route M4 is presented to the user by performing the route search process from the point P1 toward the destination G. Is done.

As described with reference to FIG. 6, when the optimum route to the My route and the optimum route to the destination do not match, a plurality of guide routes may be presented to the user and selected by the user. Good. In the example shown in FIG. 9, both the optimum route R2 from the point P1 to the my route M4 and the optimum route R3 to the destination G may be presented to the user.

As described above, according to the present invention, the user of the mobile terminal device 20 can view the optimum route for reaching the my route registered in advance from the current position. In addition, once the mobile terminal device 20 receives the guide route data from the route search server 10, the mobile terminal device 20 presents the guide route to the My Route offline without communicating with the route search server 10. Consumption can be prevented.

In particular, at the time of a disaster, it is necessary to effectively use limited resources of the mobile terminal device 20,
In the present invention, the resources of the route search server 10 and the mobile terminal device 20 can be effectively used by suppressing the communication load between the route search server 10 and the mobile terminal device 20.

The present invention is not limited to the above-described embodiment, and can be implemented in various other forms without departing from the gist of the present invention. For this reason, the said embodiment is only a mere illustration in all points, and is not interpreted limitedly. For example, the above-described processing steps can be executed in any order or in parallel as long as there is no contradiction in the processing contents.

In the present embodiment, the route registration means 25 for registering my route is replaced with the mobile terminal device 20.
However, the route search server 10 may have a function corresponding to the route registration unit 25 and provide the mobile terminal device 20 with the function.

1 is a block diagram showing a schematic configuration of a route guidance system 100. FIG. 5 is a flowchart illustrating an example of a my route search process by the route guidance system 100. It is a figure which shows an example in the case of guiding from the present position P1 to any place on my route M. It is a figure which shows an example in the case of guiding directly to the home Y which is a destination, without guiding from the current position P2 to My Route M. It is a figure which shows an example in case the present position P3 is far. It is a figure which shows an example in the case of presenting multiple guidance routes from the current position P4 to My Route M. 6 is a diagram showing an example of a navigation screen displayed on the display means 28. FIG. It is a figure which shows another example of the navigation screen displayed on the display means. It is a figure which shows an example in the case of showing the guidance route | route which reaches | attains the destination via a my route from a present position.

DESCRIPTION OF SYMBOLS 10 Route search server 11 Main control part 12 Communication means 13 Path search means 14 Distribution data edit means 15 Storage device 16 Guidance data 17 Map data 18 Road network data 19 My route data 20 Portable terminal device 21 Main control part 22 Communication means 23 GPS Processing unit (position detection means)
24 route guidance request means 25 route registration means 26 temporary storage means 27 input means 28 display means 100 route guidance system

Claims (9)

A route guidance system in which a route search server and a mobile terminal device are connected via a network,
A predetermined route (at least one of the route search server and the mobile terminal device)
Hereinafter referred to as “My Route”. A storage device for storing
The portable terminal device
Position detection means for detecting the current position;
Display means for displaying guide route information received from the route search server;
With
The route search server
Route search means for searching for a route from the current position detected by the position detection means to the my route stored in the storage device;
Distribution data editing means for editing guide route information based on the route searched by the route search means, and transmitting the guide route information to the mobile terminal device;
A route guidance system comprising: 2. The route guidance system according to claim 1, wherein a route frequently used by a user is stored in the storage device as a my route by using history information of a current position detected by the position detecting unit. . The portable terminal device receives guide route information in the background from the route search server and stores it in the temporary storage means, and stores the guide route information stored in the temporary storage means in response to an instruction from the user. 3. Read out and display on said display means.
The described route guidance system. 4. The route guidance system according to claim 1, wherein the portable terminal device receives guidance route information from the route search server according to a user instruction and displays the guidance route information on the display unit. 5. . Position detection means for detecting the current position;
Display means for displaying guide route information received from the route search server;
A route search server connected via a network to a mobile terminal device comprising:
The route search server
From the current position detected by the position detection means, a predetermined route (registered in the storage device)
Hereinafter referred to as “My Route”. ) Route search means for searching for a route to
Distribution data editing means for editing guide route information based on the route searched by the route search means, and transmitting the guide route information to the mobile terminal device;
A route search server comprising: A route guidance method in a route guidance system in which a route search server and a mobile terminal device are connected via a network,
A registration step of storing a predetermined route (hereinafter referred to as “my route”) in a storage device;
A position detecting step in which the mobile terminal device detects a current position;
A route search step in which the route search server searches for a route from the current position detected by the position detection step to a my route stored in the storage device;
A distribution data editing step in which the route search server edits guide route information based on the route searched in the route search step, and transmits the guide route information to the mobile terminal device;
A display step in which the mobile terminal device displays guide route information received from the route search server;
A route guidance method comprising: Position detection means for detecting the current position;
Display means for displaying guide route information received from the route search server;
A route search method in a route search server connected via a network to a mobile terminal device comprising:
A receiving step of receiving a current position detected by the position detecting means;
From the current position received in the receiving step, a predetermined route registered in the storage device (hereinafter referred to as “
It is called “My Route”. ) A route search step for searching for a route to
An editing step of editing guide route information based on the route searched by the route search step;
A transmission step of transmitting the guide route information to the mobile terminal device;
A route search method comprising:   A program for causing a computer to execute the route search method according to claim 7.   A computer-readable recording medium on which the program according to claim 8 is recorded.

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