JP3273356B2 - Navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation apparatus for determining a current position on a map and displaying the current position on a map displayed on a screen.

[0002]

2. Description of the Related Art Hitherto, a navigation device for a vehicle has been developed which provides guidance information on a sightseeing spot, a restaurant, a parking lot, etc. around a current position.

In order to obtain guide information of a tourist spot, for example, guide information corresponding to each object such as a tourist spot, a restaurant, and a parking lot existing on a map is written in a memory in advance. Thus, a target sightseeing spot is designated from a list of sightseeing spots displayed on the screen, and guidance information of the designated sightseeing spot is read out from the memory and displayed on the screen.

[0004]

The problem to be solved is that a memory in which guide information corresponding to each object such as a sightseeing spot, a restaurant, a parking lot and the like existing on a map is prepared in advance and the memory is prepared. In order to obtain the guidance information of the target object from among them, a large amount of memory is required, and the operation for reading the guidance information of the target object from the memory is complicated. is there.

In addition, the guide information of each object written in the memory is obsolete, so that fresh guide information cannot be obtained, and guide information of a new object cannot be obtained. That is.

[0006]

Means for Solving the Problems The present invention, in the navigation device, an instruction and the Internet communication means, a browser means for connecting to the appropriate homepage by said Internet communication means in accordance homepage URL, and position on the map Then, the position data is transmitted to the base station by the Internet communication means, and the URL of the home page corresponding to the position is read from the memory of the base station, whereby the home page corresponding to the position is displayed on the screen of the navigation device by the browser means. Means. The present invention also relates to a navigation device, wherein the Internet communication means, a browser means for connecting to a corresponding homepage by the Internet communication means according to the URL of the homepage, a position on a map are designated, and the position data is interpreted.
-Send to the base station by network communication
U of homepage registered within a predetermined range to be considered
By reading the RL from the memory of the base station,
A means for displaying the RL homepage on the screen of the navigation device by the browser means is provided.

[0007]

According to the present invention, guide information of a target object can be easily obtained by a simple operation without requiring a large-capacity memory. In addition, fresh guidance information can always be obtained from the homepage established for the target object, and the guidance information can be obtained simply by adding the new homepage URL to the memory in which the homepage URL data is registered. Can easily be extended.

[0008]

FIG. 1 shows a configuration of a navigation device for a vehicle. A navigation device 1 basically includes a distance detector 2 for detecting a traveling distance of the vehicle, and a traveling direction of the vehicle. , A GPS receiver 4 for measuring the position of the vehicle, and a travel distance of the vehicle detected by the distance detector 2 and a traveling direction of the vehicle detected by the direction detector 3. Based on this, the current position on the road map is determined while calculating the position on the XY coordinates of the vehicle by arithmetic processing, and the current position on the road map is obtained from the position information of the own vehicle measured by the GPS receiver 4. And a control processing unit 5 for performing the overall control and necessary processing while obtaining the current position while complementarily performing map matching, and a road using digital map data in advance. A map information storage medium 6 in which map information is stored, a storage medium reproducing device 7 for selectively reading road map information of a required area from the storage medium 6, and a predetermined information based on the read road map information. Is input to the display device 8 for displaying the current position of the own vehicle as the vehicle travels on the road map projected on the screen, and the control processing device 5. And an operation device 9 capable of performing various input operations such as designation of selection of a map to be displayed on the display device 8, change of setting of the display scale, menu selection, positioning of a cursor projected on a screen, and the like. Have been.

In such a navigation device,
In particular, in the present invention, the navigation device main body 1 has an Internet communication device 11 communicating with an existing Internet provider 10 via a telephone line so as to operate under the control of the control processing device 5, and a URL as a homepage destination. According to (uniform resource locator), a browser 12 for connecting to a predetermined homepage through the Internet communication device 11 and a communication device 13 for performing data communication with the base station 14 are provided.

The base station 14 includes a memory 15 in which a data table of a URL of a homepage corresponding to a position on the map is registered in advance, a communication device 16 for performing data communication with the navigation device, an access to the memory 15 and data communication. And a control device 17 for performing the above control.

The operation of the navigation device according to the present invention will be described below.

FIG. 2 shows a display state of the screen when in the current position display mode. On the map projected on the screen, the mark of the current position P of the own vehicle, X company, Y
Objects such as a restaurant, a Z parking lot, and Route 16 are displayed.

In such a state, the control processor 5
When the homepage menu is selected by the menu selection operation from the operation device 9 under the control of the operation device 9, the display state of the screen is switched as shown in FIG. 3, the cursor C is displayed on the screen, and the cursor is positioned at the corner of the screen. Setting switch SW is displayed.

When the cursor C is moved to an arbitrary position on the map, for example, the position of company X and the setting switch SW is pressed, the position of the company X on the map coordinates is taken into the control processing device 5. Then, the control processing device 5 transmits the data of the position on the map coordinates obtained from the communication device 13 together with the number of the map on which the position exists, to the base station
Send to

As the map number, which is included in the digital map data, the control processor 5 reads the map number of the area where the designated object exists.

Under the control of the control device 17, the base station 14 reads out the URL data of the homepage corresponding to the data of the position of the object received by the communication device 16 from the memory 15 while referring to the map number. The URL data is transmitted to the navigation device body 1 side.

At this time, if a plurality of homepage URLs correlated with the position data of the object are registered in the memory 15, the URLs of all the homepages are transmitted to the navigation device body 1.

Next, under the control of the control processing unit 5, the navigation device body 1 displays an access switch for connecting to a predetermined homepage together with the URL of the received homepage on a screen. Start 12 applications.

Thus, the Internet communication device 11
And the contents of the target object, for example, the homepage of company X are displayed on the screen.

If the URL data of the home page corresponding to the object information sent from the navigation device main body 1 is not registered in the memory 15 of the base station 14, a reply to that effect is made and the navigation is performed. A notification to that effect is issued on the side of the John device main body 1.

FIG. 4 shows a flow of processing in the control processing device 5 described above.

As described above, according to the present invention, by using the Internet homepage, it is possible to easily operate the guide information of the objects existing on the map, for example, the guide information of the company and the parking lot, the congestion information of the national road, and the like. Can be easily obtained. Then, information on an object that does not exist on the map used for navigation can be obtained by searching the memory 15 according to the data on the position on the map.

Then, fresh guidance information can always be obtained from the homepage established for the object corresponding to the position on the map, and the URL of the new homepage can be simply added to the memory 15 of the base station 14. In addition, it is possible to easily expand the guide information on the homepage according to the position on the map.

When the base station 14 reads the URL of the home page from the memory 15 in accordance with the data of the position transmitted from the navigation device main body 1, a certain distance (for example, 1 km) is defined as a radius around the position. A search may be made for a range to be transmitted, and a URL of a homepage registered within the range may be transmitted.

In this case, it is possible to prevent a situation in which a position shift occurs when indicating a position on the map and the URL of the corresponding homepage cannot be read. In addition, the URL of the homepage established near
Can be obtained.

In the control processing unit 5, the position of the object pointed by the cursor C is obtained as a relative position on the map displayed on the screen, and the relative position is obtained by using a predetermined coordinate conversion coefficient. The data may be converted into an absolute position on the latitude-longitude coordinates by arithmetic processing, and the data of the absolute position may be transmitted to the base station 14 side. In this case, there is no need to transmit the map number.

According to the present invention, a homepage established in the memory 15 of the base station 14 with a map number as an address corresponding to each object existing in a map of a predetermined area corresponding to the map number. UPL is registered. Then, by notifying the base station 14 of the map number displayed on the screen from the navigation device main body 1 side, all the URLs of the homepages corresponding to the respective objects existing in the map are read out from the memory 15 and the navigation device main body is read. It may be transmitted to one side. Such a method is advantageous when the map displayed on the screen is in a relatively small area and the number of homepages existing in the area is limited to some extent.

The base station 14 can use a navigation device mounted on a plurality of vehicles. Also,
Not only one base station but also a plurality of base stations having memory contents for each predetermined area so that communication with the base station in the area where the current position of the vehicle exists is performed. Is also possible. Also, each unique URL
One of a plurality of base stations having information may be arbitrarily selected.

Further, in the present invention, the navigation device body 1 has a memory in which a data table of the URL of the home page corresponding to the position on the map is registered in advance.
It is also possible to obtain the URL of the homepage corresponding to each object that exists independently on the map.

The present invention is not limited to the embodiment described above. For example, the base station side has a home page described in HTML (Hypertext Markup Language), and the home page of the base station is transmitted from the navigation device main body side. May be accessed via the Internet.

In this case, for example, when the position on the map is 35 degrees 46 minutes 42 seconds north latitude and 139 degrees 37 minutes 59 seconds east longitude, "http: //www.honda.serv"
ice. co. jp / cgi-bin / kensaku
_N = 0345642_e = 1393759 ".

Here, www. handa. servi
ce. co. jp is IP (Internet Protocol)
Represents an address.

On the base station side, / n = 0345642. e
= 1393759 / as a search item, sent to the search program kensaku, searching for the URL of the homepage corresponding to the object existing in the area specified by the latitude 35 degrees 46 minutes 42 seconds north longitude 139 degrees 37 minutes 59 seconds east, It is transmitted to the navigation device body.

On the navigation device main body side, a search home page corresponding to the position data n = 0354642, e = 1393759 is displayed on the screen. The search home page contains 35 degrees 46 minutes 42 seconds north latitude and 1 east longitude.
URL of the homepage near the position of 39 degrees 37 minutes 59 seconds
Is displayed, and a desired homepage is displayed by a switch selection operation.

The navigation device according to the present invention can be applied not only to a vehicle, but also to a walking portable device.

As a portable navigation device for walking, the number of walks is counted by using an impact detector, and the walking distance is calculated by multiplying the number of steps by a constant step. Based on the position on the road map based on the GPS
The position on the map is calculated from the position information measured by the receiver, and the current position is obtained while performing complementary map matching. Alternatively, the current position on the map may be obtained only by the GPS receiver.

[0037]

As described above, in the navigation device according to the present invention, the data of the position on the map displayed on the screen is transmitted to the base station by using the Internet homepage, so that the data is displayed on the screen. Since the URL of the homepage corresponding to the location on the map is read from the memory of the base station and the contents of the homepage established for the object are displayed on the navigation screen, a large amount of memory is required. In addition, there is an advantage that fresh guidance information such as guidance information of companies and parking lots and congestion information of national roads can be easily obtained by a simple operation.

Further, according to the present invention, it is not necessary to know the URL of the homepage if only the location on the map is known, and a new URL is stored in the memory of the base station in which the URL of the homepage corresponding to the location on the map is registered. By simply adding the URL of the homepage, the expansion of the guide information by the homepage according to the position on the map can be easily expanded . Then, the data of the current position of the vehicle is transmitted to the base station.
By doing so, the surrounding roads and restaurants
Download the latest URL of the vehicle to the navigation device of your vehicle
Download the latest environmental information
It has the advantage that it can be done.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a navigation device according to the present invention.

FIG. 2 is a diagram showing an example of a display state of a screen in a current position display mode in the navigation device of the present invention.

FIG. 3 is a diagram showing an example of a display state of a screen when a homepage menu is selected in the navigation device of the present invention.

FIG. 4 is a diagram showing a processing flow when obtaining home page information of an object on a map in the navigation device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Navigation apparatus main body 2 Distance detector 3 Direction detector 4 GPS receiver 5 Control processing device 6 Map information storage medium 7 Storage medium reproduction device 8 Display device 9 Operation device 10 Provider 11 Internet communication device 12 Browser 13 Communication device 14 Base station 15 Memory 16 Communication device 17 Control device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/09-1/137 G09B 29/00-29/10

Claims (2)

(57) [Claims] 1. A navigation device for obtaining a current position on a map and displaying the obtained current position on a map displayed on a screen, wherein the Internet communication means and the Internet communication means according to a URL of a homepage. Instruct the browser means to connect to the corresponding homepage and the position on the map, transmit the position data to the base station by the Internet communication means,
A navigation device, comprising: means for reading a URL of a homepage corresponding to a position from a memory of a base station to display the homepage corresponding to the position on a screen of the navigation device by the browser means. 2. A navigation device for obtaining a current position on a map and displaying the obtained current position on a map displayed on a screen, wherein the Internet communication means and the Internet communication means according to a URL of a homepage. Instruct the browser means to connect to the corresponding homepage and the position on the map , transmit the position data to the base station by the Internet communication means,
Hoes registered within a predetermined range around that position
To read the URL of the mpage from the memory of the base station
The navigation apparatus further comprising means for displaying the URL homepage on the screen of the navigation apparatus by the browser means.