JP2003214869A - Method and system for map display for portable information display terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that when a vehicle reaches a parking area in a destination by using a navigation system, the vehicle is easy to lose its way because a map does not exist when a department store or the like as an original destination is distant from the parking area. <P>SOLUTION: When the vehicle 2 on which the navigation system 1 is mounted advances to the parking area in the destination by the navigation system 1, position coordinates of the parking area and position coordinates of the original destination such as the department store or the like are fetched from the navigation system 1, and the respective coordinates and a mail address of a portable telephone having an Internet function are transmitted to a mail server 3. The mail server 3 transmits the respective position coordinates to a map provision service department 4, the service department 4 retrieves a map containing both position coordinates, and it transmits a URL corresponding to the map to the mail server 3. The mail server 3 transmits the URL to a designated mail address together with mail. A user opens the mail when getting off from the vehicle so as to access the transmitted URL, and he can download the prescribed map from the service department 4. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention distributes a map from a map providing service section such as a map data providing site to a portable information display device equipped with a communication device such as a mobile phone or a portable information terminal via the Internet. The present invention relates to a map display method and a map display system for a portable information display device, which allows a user to receive a desired map, and in particular, it is possible to easily receive a map of a desired point by using data of a navigation device. The present invention relates to a map display method and a map display system for a portable information display device.

[0002]

2. Description of the Related Art In a vehicle navigation system,
A GPS receiver that receives a GPS signal to detect the current position is used, and a self-contained navigation sensor that detects the current position by obtaining the traveling distance by a vehicle speed sensor and the traveling direction by a sensor having a gyro function, Based on these position data, map data in the vicinity of the current location is read from a data recording medium such as a CD-ROM or DVD-ROM, the current location is map-matched to the road on the map, and the current location is centered on an image display device such as a liquid crystal display. By displaying such a map, it is possible to easily know where the vehicle is currently traveling. Furthermore, by setting the destination and the waypoint, the optimum guidance route from the current location is searched based on the map-related data, and the guidance route is displayed on the map and displayed at the same time. Is enlarged to display the right / left turn direction and the like, and the driving guidance is also given by voice or the like.

On the other hand, with the recent progress and spread of Internet technology, in addition to receiving and displaying data from the Internet by an ordinary personal computer, receiving and displaying data from the Internet using a portable information terminal having a communication function is also possible. You can do it. Furthermore, even a mobile phone can read simple information from the Internet by i-mode or the like and display it. In addition, the mobile phone can be loaded with normal Internet data and displayed by further enhancing the communication function.

Therefore, a portable information display device having a communication device such as a portable telephone or a portable information terminal as described above is used,
For example, connect to the site of the map information service department that can store map data and distribute it to users, specify a specific point and map scale, and import the desired map data. It can be displayed.

[0005]

As described above, in the vehicular navigation system, the guidance route from the current position is displayed on the map by designating the destination and the waypoint.
In addition, guidance is provided by voice so that the vehicle can be reliably guided to the destination or waypoint, but it is not enough in underground parking lots or adjacent parking lots, such as department stores in big cities. When doing, there are cases where a parking lot existing relatively far from the department store is used. In addition, as a parking lot, an affiliated parking lot that can be shared with many stores and facilities may be used, and such an affiliated parking lot is relatively far from a specific store or facility. Often exist in different places.

Thus, when the shop or facility where the user of the navigation device originally intends to go is far from the parking lot set as the destination in the navigation device, the navigation device arrives at the parking lot. When I got out of the car and tried to walk to the shop or facility, the map around it was displayed on the navigation device installed in the vehicle, so I looked at it before getting off Even when heading to the store or facility later on, there are often times when the road is lost, especially when the route is complicated. In that case, it is inconvenient because you have to go while listening to the people around you.

As a countermeasure, a map from the parked position to the position where the store or facility exists is used by using a mobile phone having an internet connection function or a mobile information terminal having a similar function. As described above, it is possible to download from the site of the map information providing service department and refer to the display to walk to the store or facility which is the original destination. However, in order to download the map data of a predetermined area as described above, it is possible to finally obtain the map data by performing a complicated input operation to specify the area, which requires a lot of trouble. There is. In particular, more difficult operations are required to select and display a map of an appropriate range of the area from the parking lot position to the original destination.

Therefore, according to the present invention, a mobile information display device such as a mobile phone or a mobile information terminal can easily receive and display a map of a desired point using position data possessed by a navigation device. And a map display method for a portable information display device, which is capable of surely moving to an original destination by using the map displayed on the portable information display device even when the map is displayed away from the navigation device. The main purpose is to provide a system for implementing the method.

[0009]

In order to solve the above-mentioned problems, a map display method for a portable information display device according to the present invention provides position data in the navigation device and a mail address for the portable information display device from the navigation device. To the mail server, the mail server sends the received position data to the map providing means, the map providing means returns a URL corresponding to the map including the received position data, and the mail server receives the received data. U corresponding to the map
A mail with RL is sent to the mail address, the mobile information display device receives the mail, sends the received URL to the map providing means, and the map information providing means maps the map corresponding to the received URL. Data is transmitted to the mobile information display device, and the mobile information display device displays the received map data.

Further, the map display system for a portable information display device according to the present invention is a navigation device for transmitting internal position data and a mail address for a portable information display device to a mail server, and a map of the received position data. Corresponding to the mail server that sends to the providing means, adds the map-corresponding URL received from the map providing means and sends to the mail address, and the map corresponding to the position data received from the mail server, and corresponds to the map URL that corresponds to the map from the mobile information display device
A map providing means for receiving the URL and transmitting map data corresponding to the URL, and the map-compatible UR from the mail server.
The mail attached with L is received, the map corresponding URL is transmitted to the map providing means, and the UR is sent from the map providing means.
The mobile information display device receives the map data corresponding to L and displays the map of the received map data on the display device.

Another mobile information display device map display system according to the present invention is characterized in that, in the mobile information display device map display system, position data transmitted by the navigation device to a mail server is stored in the current position of the navigation device. This is data.

Further, another map display system for a portable information display device according to the present invention is the map display system for a portable information display device, wherein the position data transmitted by the navigation device to a mail server is the destination of the navigation device. It includes the position data of.

Another mobile information display device map display system according to the present invention is characterized in that, in the mobile information display device map display system, the position data transmitted by the navigation device to the mail server is further stored by the user. It includes position data of a point that moves away from the navigation device.

Further, another map display system for a portable information display device according to the present invention is the map display system for a portable information display device, wherein the map providing means includes a position of a destination of the navigation device and a user. The recommended route to and from the position of the point moving away from the navigation device is calculated and transmitted.

Further, another map display system for a portable information display device according to the present invention is the same as the map display system for a portable information display device, wherein the map providing means determines the position of the destination of the navigation device and the user. A map that can be simultaneously displayed on the screen of the portable information display device including the position of a point moving away from the navigation device is searched, and the URL corresponding to the map is transmitted to the mail server.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, FIG. 2 shows it as a flowchart, and FIGS. 3 to 6 show screens of a mobile phone as a navigation device and a mobile information display device for receiving an email at that time. An example is shown.
The embodiment shown in FIG. 1 shows a state in which a user drives a vehicle 2 equipped with a navigation device 1 to run and move toward a destination. Similarly to the above, it has a function of setting a destination from the present location or a waypoint if necessary and providing guidance to the destination along the calculated guide route.

This navigation device also has a communication function, and it becomes possible to send and receive mail and connect to the Internet by the communication function of the navigation device itself or a mobile phone or the like connected thereto. In order to send and receive the mail, the WWW (World
It is possible to send and receive mail with various sites and individuals via this mail server connected to the Internet communication network of Wide Web. In the illustrated embodiment, the mail server 3 communicates with the web (Web) server 5 of the map providing service department 4.

There are various forms of the map providing service section 4, and for example, a map search site that provides maps on the Internet, which is widely used at present, can be used, and, for example, car makers mainly serve users. It is possible to use these map data even in the information providing department via the Internet, which is provided as a service, or the similar information providing department, which is provided by the navigation device manufacturer as a service. it can. The various map providing service departments as described above function as one device, and thus can be collectively referred to as map providing means.

In the map providing service section 4, the map search unit 6 uses the search conditions input from the outside by the web server 5.
The map search unit 6 sends the map center point of the map that meets the search conditions from the internal map database 7 to the map search unit 6.
It is possible to search the map data including the scale and the scale, and output this as a URL (Uniform Resource Locator) of the search result.

The URL is a character string for identifying a location such as a file or directory on the WWW. In HTML 4.0, it may be expressed as a URI in a broader sense. For convenience, this kind of thing is generically called "URL".

In this map providing service section 4,
As a normal map providing service, when a map request for a specific point is made from the outside, it also has a function of directly outputting map data at an appropriate scale centered on the point.
The map providing service section 4 further has a function of transmitting a corresponding map to a map requester when a URL indicating a specific point and a scale is directly transmitted from the outside.

The mobile telephone 8 as the portable information display device shown in the embodiment of FIG. 1 has an internet connection function, and is used which has a simple internet communication function such as i-mode widely used at present. In addition, a mobile phone having a higher communication function, which is expected to spread in the future, is used. When using such a mobile phone, the map display device in the present invention is a mobile information display device in which a communication device and a map display device are integrated.

Further, as the portable information display device, a portable information terminal (PDA) other than the above-mentioned portable telephone can be used, and when the portable information terminal itself has an external communication function, the portable information display device can be used. The map can be displayed by itself like a telephone. When the mobile information terminal does not have an external communication function, a map can be received and displayed by connecting an external communication device such as a mobile phone. In addition, other portable personal computers such as palmtop personal computers can be used in the same manner. Therefore, in the present invention, a device including all of these is collectively referred to as a "portable information display device".

In the system configuration as described above, the present invention operates in the order of to shown in FIG. 1, and the operation is shown in the flowchart in FIG. 2 as a map display process on the portable information display device. Below, the operation is shown in FIG.
This will be described in order with reference to an example of the screen of the navigation device and the mobile phone that receives an email shown in FIG.

In the map display processing on the portable information display device, first, the navigation device 1 sends the user's mail server 3 the parking position coordinates of a parking lot or the like as the destination of the navigation device 1 and, for example, walk from the parking lot. And the like, and the position coordinates of the original destination of the department store or the like that is about to move and the mail address that can be opened by the mobile phone or the like as the mobile information display device that is about to receive the map are transmitted (step S1).

The position coordinates and the mail address as described above can be input in various ways.
For example, the input can be sequentially performed based on the screen shown in the example of the navigation device display screen at the time of requesting the destination peripheral map URL in FIG. In this example, first, as a position coordinate of a parking lot or the like as a destination of the navigation device, a destination that is input and set in advance in the navigation device, that is, a parking position when moving out of the vehicle to the original destination is indicated. To do.

In the example shown in FIG. 3 (a), "Naniwa parking lot" is selected, and by operating the ▼ mark in this part, the destination or waypoint currently input and set in the navigation device is selected. All names are automatically displayed, and by selecting an arbitrary point from among them, you can easily select and input the destination etc. without performing complicated input operation and respond to that point. It is possible to instruct specific coordinate data.

By setting the item "current location" in this selection screen, when this is selected, the current location where the vehicle is present instead of the destination and transit point which are input and set in advance as described above. The position coordinates of are selected and input. This makes it easy to display a map of the surrounding area on a mobile phone, as described later, when you suddenly park at a specific point while driving, walk around the area, or walk on unfamiliar roads to use restaurants, etc. Even if the user does not know the current location in detail, it becomes easy to receive the map around the current location on the mobile phone and use it.

Next, the original destination to go after getting off the vehicle is input. It should be noted that this input is not always indispensable, but by inputting it, it becomes possible to display a map including both the destination set in the navigation device and the original destination. . In setting the original destination, in the example shown in FIG. 3A, the input screen portion of “To destination search screen” is provided, and various objects provided in the navigation device by instructing the input screen portion are provided. A specific point can be set by using the ground input function, and in the illustrated embodiment, "Osaka department store" is selected. By such selection, the navigation device can take in the map coordinates corresponding to the position of the point or the facility from the map data recording medium and input it as the position coordinates.

Also on this selection input screen, by operating the ▼ mark, the destination previously set by the user,
It is possible to display the names of various points and facilities that the user has registered in advance on the navigation device, and by selecting this display, it is possible to display the original position of the destination in the same way as above without any special operation. You can enter the coordinates.

Next, the mail address to be received is input. This e-mail address is set in the user's mobile phone in the embodiment shown in FIG. 1, and "y.himura2001@dacomo.ne.jp" is input and set in the example shown in FIG. 3 (a). When inputting this e-mail address, in the illustrated embodiment, by operating the "to input screen" portion, an input screen by key operation is displayed separately, and by confirming this setting, the screen is returned to this screen again. Cage,
Furthermore, by operating the ▼ mark in the email address display field, the previously entered email address or a previously registered email address is displayed, and it is possible to easily enter by selecting this. There is.

After inputting the coordinates of the destination of the navigation device, the original destination, etc., and the mail address in the various modes as described above, "send" in the example shown in FIG. 3 (a). By selecting and operating
These data are transmitted from the navigation device 1 of the vehicle 2 to the mail server 3 as shown in FIG. This transmission can be executed using the navigation device 1 at any time before leaving the vehicle, such as before the vehicle is traveling, while the vehicle is traveling, when the vehicle is stopped, when the vehicle arrives at a destination or a waypoint.

Thereafter, from the mail server 3 to the map providing service section 4, the coordinates of the destination of the navigation device such as the parking position input as described above and the original destination such as a department store moving on foot from there. The coordinates are transmitted (step S2). This transmission is carried out by using a normal internet communication network in accordance with a predetermined map data request format in a predetermined map providing service department. In particular, in this embodiment, when the coordinates of two specific points are transmitted to the map providing service department 4, the map of the minimum scale including each point and the original destination are included in the map. We provide a service that searches for items that have text data including the names of facilities and places that correspond to locations and provides the URL data of the map. It should be noted that, when transmitting the coordinates, if only the destination of the navigation device such as a parking lot is input, or if only the current location where the vehicle is stopped is input, only one coordinate data is transmitted. It will be.

In the map providing service section 4, the coordinates are received by the web server 5, and the coordinate data is output to the map search section 6 as a search condition. The map search section 6 searches the map database 7 under this condition. As described above, when the coordinates of two points are transmitted, a map with the minimum scale including both points is searched. Moreover, when only the coordinates of one point are transmitted as described above,
A map with a predetermined scale centered on that point is searched. Note that, as will be described later, in the case of calculating a recommended route for two points, there are cases where a map centered on one point is searched even when two coordinates are transmitted.

The map search unit 6 includes the URL corresponding to the map obtained as a result of this search, that is, the center position coordinates of the map and the data such as the width, height and scale of the display screen. The data including the address of the site is added, for example, "http://www.chizuya.com/mai
n / czdsp.dll? X = 503905.772 & Y = 129093.431 & WID = 350 & HEI =
30 & TAB = chizu & NAME = & MODE = 0 & CSET = 2 & PG = 1 & LK = all & CND = v
URL data such as "and &..." is output to the web server 5 as a search result.

Next, the URL of the map data of an appropriate scale including the designated coordinates retrieved as described above from the web server 5 of the map providing service department 4 to the mail server 3.
Is transmitted (step S3). The mail server 3 that has received this transmits the mail with the URL for receiving the map data to the mail address for receiving the map transmitted from the navigation device 1 as described above (step S4).

The mobile phone 8 as the mobile information display device shown in FIG. 1 receives this mail, and as a result, the mail can be opened at any time. Therefore, as described above, when the navigation device 1 transmits to the mail server the mail address or the like for receiving the coordinates and the map of the destination before or while the vehicle 2 is running, this mobile phone is When it exists in, it is already receivable.

When the vehicle arrives at the destination parking lot and the above-mentioned transmission is performed by using the navigation device, or when the vehicle is traveling, the vehicle suddenly stops at an unplanned place and a specific shop around the vehicle is stopped. When trying to visit, when performing the above transmission from the navigation device at the stop position,
At each place, the mail can be received and opened. In the embodiment shown in FIG. 1 and FIG. 2, among these various states, the user arrives at a destination such as a parking lot, carries a mobile phone, and gets off, to the original destination such as a department store. I'm trying to move, but I don't know the location of a department store, so I open an email with the URL corresponding to the map of the mobile phone that I have already received, display the map around it on the mobile phone, and move with reference to this (step S
5) Shows the state of being attempted.

When the user opens the mail of the mobile phone 8 as the mobile information display device received as described above, the screen display as shown in FIG. 3B, for example, is performed. That is,
In the mail reception mode display, the name of the mail server as the sender of the mail is displayed, the date and time of the reception are displayed, and in the example shown in the figure, "Map mail has been received. Please perform [Receive] ", and the URL name to be received as a reference and the [Receive] operation start operation screen part for starting the operation to receive the map of this URL are displayed below it. .

When the user receives a mail by the mobile phone as the mobile information display device corresponding to the mail address and performs a receiving operation start operation to access the attached URL, the Internet network is automatically connected. The web server 5 of the map providing department 4 is accessed via (
Step S6). The web server 5 of the map providing service department 4 receives the map transmission request, and outputs the coordinate data and the URL data including information such as the scale to the map search unit 6. The map search unit 6 extracts corresponding map data from the map database 7 and passes the map data to the web server 5. The web server 5 transmits the map corresponding to the specified URL to the mobile phone 8 as the mobile information display device that has made the map transmission request (step S).
7).

As a result, a map corresponding to the URL is displayed on the mobile phone 8. An example of the map screen displayed at this time is shown in FIG. In this example,
When you are going to "Osaka department store" as the original destination existing near "Naniwa station" as shown in Fig. 4 (a), "Naniwa parking lot" which is a partner parking lot of "Osaka department store" In the state where the destination of the navigation device is set to “” and the vehicle travels along the guide route indicated by the broken line in the figure, the navigation device displays, for example, as shown in FIG. After that, when arriving at the "Naniwa parking lot" as the destination of the navigation device, for example, as shown in FIG.
The screen of the navigation device is as shown in FIG.

On the screen of the navigation device shown in FIG. 5A, "Osaka department store" as the original destination is displayed.
Is not displayed, and it is difficult to know where "Osaka Department Store" exists. It is also possible to search for "Osaka Department Store" by scrolling the map screen, and by increasing the scale of this map screen to a wide area screen, for example, a wide area map as shown in Fig. 4 (a). It is also possible to search for this "Osaka department store" by displaying, and thus in this way from the "Naniwa parking lot" to the "Osaka department store" by these map screens.
You can also memorize the way up to. However, the memory is actually lost during the movement from the "Naniwa Parking Lot" to the "Osaka Department Store", and in the case of a complicated route, the road may be erroneously lost.

On the other hand, as described above, one map screen is displayed on the mobile phone as the destination "Naniwa parking lot" of the navigation device as shown in FIG. 5 (b) and the original destination "Osaka department store". When it is displayed on the screen, the user can surely go to "Osaka department store" which is the original destination by watching this and taking the shortest route with "Seven Eleven" in the figure as a guide. In the illustrated embodiment, it is possible to scroll up, down, left and right as in a normal map screen, and it is also possible to arbitrarily change the scale. At the time of such an operation, the data is sequentially fetched by communicating with the map providing service department 4 of FIG.

Even when the coordinate data of the original destination such as a department store is not transmitted as described above, at least when a map centering on the "Naniwa parking lot" currently parked is displayed. , The user compares the map screen of the navigation device in the vehicle with the map displayed on the mobile phone and finds out which direction "Osaka Department Store", which is the original destination that does not exist in the map displayed on the mobile phone, You can easily see if it exists in the map, and you can display it immediately by scrolling this screen in that direction, so by simply remembering the scroll direction of the map screen, You can scroll the screen and definitely go to the original destination, "Osaka Department Store".

As described above, when displaying a map of a specific point on the portable information display device, it is possible to easily display a desired map without performing a complicated operation for narrowing down the displayed map. . In addition, when a map screen including the destination of the navigation device and the original destination is displayed, it is not necessary to scroll and search for the position of the original destination, and the destination of the navigation device can be easily displayed. It is possible to know the positional relationship with the original destination.

Further, since only the URL of the map is transmitted to the portable information display device at first, the data amount is smaller than that when the map is directly transmitted, the communication charge becomes cheaper, and the vehicle arrives at the parking lot and the surrounding area is displayed. When you look around, you can see the display on the rooftop of the building of the original destination "Osaka Department Store",
When it is not necessary to display the map, there is no need to request the map display of the URL attached to the e-mail, and there is no need to pay useless communication charges.

In the above embodiment, the example of receiving the map data is shown. However, if the destination of the navigation device can be surely walked to the original destination, an approximate distance to go straight, turn left or right. It is also possible to set so as to receive simple data indicating a route, such as the name of a store that serves as a guide for the intersection. In that case, the amount of data is smaller than that of the above-mentioned transmission / reception of map data, the communication fee is low, and the route to the original destination can be surely known.

In this way, when the walking route from the destination of the navigation device to the original destination is shown, it is possible to deal with the data by the map providing service department 4 in advance. However, if the map providing service department has a guide route search function similar to that of the navigation device, when the coordinates of the two points as described above are transmitted, the shortest route connecting the points is calculated, It is also possible to send it with this displayed on the map.

At that time, for example, it is displayed on the portable information display device as shown in FIG. That is, as shown in FIG. 7A, a map screen centered on the "Nanwa Parking Lot" displayed when the user arrives at the "Naniwa Parking Lot" which is the destination of the navigation device in the above-mentioned embodiment displays "Thick "Dashed line is recommended route" is displayed, and a thick broken line is shown on the map screen from "Naniwa parking lot" to "Seven-Eleven" in the figure. Therefore, the user walks along the display of this screen, and newly downloads a map centered on this part near "Seven-Eleven" where the screen display disappears on this recommended route.

At this time, the map providing department processes as a series of map requests by the same user, assigns the same recommended route to the map centered on the requested point, and transmits it. As a result, a map screen as shown in FIG. 6 (b) is obtained. As a result, a map with the recommended route from "Seven-Eleven" to "Osaka Department Store" is displayed on this screen, and the user then moves along this recommended route, making sure that the "Osaka Department Store" entrance / exit is the shortest route. You can get to

In this way, when the map with the recommended route can be received, the user can easily follow the shortest route and move to the original destination. Since it is not necessary to display the points on the screen at the same time, a detailed map is displayed on the screen, and it is also possible to use it by scrolling in the direction of the guide route as needed as it moves, so it is possible to see it in a map that is easy to see. Can be used.

In the above-mentioned embodiment, the embodiment is described in which the vehicle travels along the guide route of the navigation device and arrives at the destination of the navigation device.
Even when the user is traveling without setting a guide route in the navigation device, the navigation device always obtains the current position with a GPS receiver or the like and scrolls the map, so the user gets off the train midway. When you want to display the map around the current position on the mobile information display device while moving around it, simply send the data and email address of the current position from the navigation device by the above method, and easily carry the desired map. It can be displayed on the information display device.

[0053]

According to the map display method for a mobile information display device of the present invention, the position data inside the navigation device and the mail address for the mobile information display device are transmitted from the navigation device to the mail server, and the mail server receives the data. The position data is transmitted to the map providing unit, and the map providing unit corresponds to the map including the received position data.
RL is returned, the mail server sends a mail with the URL corresponding to the received map to the mail address, and the portable information display device receives the mail and sends the received URL to the map providing means. The map information providing means transmits the map data corresponding to the received URL to the mobile information display device, and the mobile information display device displays the received map data. There is no need to perform complicated input operations for setting points on portable information display devices such as terminals,
By using the internal position data possessed by the navigation device, it is possible to easily receive the map distribution of the desired point from the map providing means such as the map providing service department and display it, and when moving away from the navigation device. In addition, the map displayed on the mobile information display device can be used to reliably move to a predetermined point. Moreover, it is possible to surely return to the original parking lot or the like again by using this map.

The map display system for a portable information display device according to the present invention is a navigation device for transmitting internal position data and a mail address for a portable information display device to a mail server, and the received position data for a map. A mail server that sends the mail to the providing means and attaches the map-corresponding URL received from the map providing means to the mail address and sends the mail to the mail address, and searches for a map corresponding to the position data received from the mail server to search the map. URL corresponding to
And a map providing means for receiving a URL corresponding to the map from the portable information display device and transmitting map data corresponding to the URL, and an email with the map corresponding URL from the mail server. A portable information display device for transmitting the map corresponding URL to the map providing means, receiving map data corresponding to the URL from the map providing means, and displaying a map of the received map data on a display device. Therefore, similar to the map display method, it is not necessary to perform a complicated input operation for setting a point on a mobile information display device such as a mobile phone or a mobile information terminal, and an internal position owned by the navigation device is not required. It is possible to easily receive a map of the desired point from the map providing means such as the map providing service department using the data and display the map. As it moves placed al apart, using a map displayed on the mobile information display device, it is possible to reliably moved to a predetermined point. Moreover, it is possible to surely return to the original parking lot or the like again by using this map.

Another map display system for a portable information display device according to the present invention is the map display system for a portable information display device, wherein the position data transmitted by the navigation device to the mail server is the current position of the navigation device. Since the data is used, when the user dismounts from the position where the vehicle equipped with this navigation device stops and tries to move to another place, no matter what point the mobile information display device is, Even if the user does not have to perform a complicated input operation to specify the current position and the user cannot clearly grasp the current position, the position can be easily specified using the internal current position data possessed by the navigation device. You can receive the distribution of the map including it from the map providing means and display it, even if you move away from the navigation device, Using a map displayed on the band information display device, it is possible to reliably moved to a predetermined point. Moreover, it is possible to surely return to the original parking lot or the like again by using this map.

Further, another map display system for a portable information display device according to the present invention is the map display system for a portable information display device, wherein the position data transmitted by the navigation device to the mail server is the destination of the navigation device. Since the position data of the navigation device is included, when the vehicle equipped with this navigation device needs to move from the destination of the navigation device such as a parking lot to another place, it is possible to download the map around the destination in advance. U
You can receive the mail with the RL attached, and when the user arrives at the destination, the user can immediately access the URL of the mail without inputting complicated specific points, and the surrounding map Can be displayed, and you can use this to move to other places quickly and reliably.

Further, another map display system for a portable information display device according to the present invention is the same as the map display system for a portable information display device, wherein the position data transmitted by the navigation device to the mail server is further stored by the user. Since the position data of the point moving away from the navigation device is included, when the vehicle equipped with this navigation device needs to move from the destination of the navigation device such as a parking lot to another place, You can send an e-mail with the URL for downloading the map around the point to move from the destination, and when the user arrives at the destination, the user performs a complicated input operation at a specific point. Immediately without any notice, the URL of the email
By accessing, you can download a map of the destination and its surroundings, and you can use it to move to other places quickly and reliably.

Further, another map display system for a portable information display device according to the present invention is the same as the map display system for a portable information display device, wherein the map providing means includes a position of the destination of the navigation device and a user. Since the recommended route between the position moving away from the navigation device and the position of the navigation device is calculated and transmitted, in addition to the above-mentioned effect, for example, the user can change the destination from the navigation device such as a parking lot. , When moving to another place such as an original destination such as a department store, it becomes possible to move more reliably by moving along the recommended route displayed on the portable information display device. Further, even if the map is enlarged and displayed, it is possible to surely reach the destination while scrolling the map along the recommended route, so that this can be used on the map screen which is easy to see.

Another mobile information display device map display system according to the present invention is the mobile information display device map display system, wherein the map providing means includes a destination position of the navigation device and a user Since a map that can be simultaneously displayed on the screen of the portable information display device including the position of the point moving away from the navigation device is searched and the URL corresponding to the map is transmitted to the mail server, the above effect In addition to this, when the user moves from the destination of the navigation device such as a parking lot to another place such as the original destination of a department store, a map including both points is displayed on the portable information display device. As a result, the positional relationship between the two points can be easily grasped and it is possible to move reliably.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the system configuration of an embodiment of the present invention and the operation of each system component in order.

FIG. 2 is an operation flow chart for performing map display processing on the portable information display device of the embodiment.

FIG. 3 is a diagram showing an example of a display screen of the embodiment, (a)
Is a display screen example of a navigation device when requesting a URL corresponding to a map around a destination, and (b) is a display screen example when a URL-attached mail is received by a mobile phone.

FIG. 4 shows a map of the embodiment and an example of its display screen,
(A) is a figure which shows the positional relationship of the parking lot which is a destination, and the department store which is an original destination, (b) is a map display screen example of a navigation apparatus.

FIG. 5 shows another map display example of the same embodiment, (a) is a map display example of the navigation device when it arrives at the destination of the navigation device, and (b) is a destination of the navigation device. It is a map display example showing an example in which a parking lot and a department store which is an original destination are displayed on one screen of a mobile phone.

FIG. 6 shows another example of the present invention in which a recommended route connecting a parking lot, which is a destination of a navigation device, and a department store, which is an original destination, is displayed, (a)
Shows a map display example in the parking lot which is the destination of the navigation device, and (b) shows a map display example when the next screen is scroll-displayed when the user leaves the screen while moving.

[Explanation of symbols]

1 Navigation device 2 vehicles 3 mail server 4 Map service department 5 Web server 6 Map search section 7 map database 8 mobile phones

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04Q 7/38 H04Q 7/04 ZF term (reference) 2C032 HB03 HB22 HB25 HC08 HC11 HC24 HC25 HC30 HD03 HD16 HD21 HD30 2F029 AA02 AA07 AB13 AC02 AC06 AC08 AC09 AC14 5H180 AA01 AA21 BB04 BB05 BB13 BB15 FF05 FF13 FF14 FF22 FF25 FF27 FF33 5K067 AA34 BB04 DD20 EE02 FF23

Claims (7)

[Claims] 1. The position data inside the navigation device and the mail address for the portable information display device are transmitted from the navigation device to a mail server, and the mail server transmits the received position data to a map providing means, The providing unit returns a URL corresponding to the map including the received position data, and the mail server returns the URL corresponding to the received map.
The mobile information display device receives the mail and transmits the received URL to the map providing means, and the map information providing means maps the map data corresponding to the received URL. Is transmitted to the mobile information display device, and the mobile information display device displays the received map data. 2. A navigation device for transmitting internal position data and a mail address for a portable information display device to a mail server, and the received position data for transmitting to the map providing means, and receiving by mail from the map providing means. A mail server that sends the map-corresponding URL to the mail address, and a map that corresponds to the position data received from the mail server is searched, and the URL that corresponds to the map is returned to the mobile information display device. Map providing means for receiving a URL corresponding to the map and transmitting map data corresponding to the URL; and receiving a mail with the map corresponding URL from the mail server, and providing the map providing means with the map corresponding URL. The map data corresponding to the URL from the map providing means, and the map data received by the display device. A mobile information display device for displaying a map of the above, and a map display system for a mobile information display device. 3. The map display system for a portable information display device according to claim 2, wherein the position data transmitted by the navigation device to the mail server is current position data of the navigation device. 4. The map display system for a portable information display device according to claim 2, wherein the position data transmitted by the navigation device to the mail server includes position data of a destination of the navigation device. 5. The portable information display device according to claim 4, wherein the position data transmitted by the navigation device to the mail server further includes position data of a point where the user moves away from the navigation device. Map display system. 6. The map providing means calculates and transmits a recommended route between a position of a destination of the navigation device and a position of a point where the user moves away from the navigation device. The map display system for a portable information display device according to claim 5. 7. The map providing means displays a map that can be simultaneously displayed on the screen of the portable information display device, including the position of the destination of the navigation device and the position of the point where the user moves away from the navigation device. The map display system for a portable information display device according to claim 5, wherein a URL corresponding to the map is searched and transmitted to a mail server.