JP2003185454A - Navigation system, navigation device, and navigation method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To realize high-quality navigation in a method of distributing navigation data from a site on the Internet through a mobile phone network. SOLUTION: From a site 4 for distributing navigation data, navigation data relating to a predetermined number of consecutive navigation points ahead of the current position of the user are collectively distributed to the user's navigation device 10 via a mobile phone network. Even if the communication state between the site 4 and the navigation device 10 is temporarily deteriorated due to the congestion of the public network, the deterioration of the radio wave condition between the base station and the mobile phone, or the like, Even if the moving speed fluctuates greatly, effective navigation data can be provided to the user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation system, and in particular, a site for providing navigation data is provided on the Internet, and the navigation data with high freshness can be obtained by accessing this site by an Internet connection function of a mobile phone. The present invention relates to a navigation system, a navigation device, and a navigation method capable of providing a user with the information.

[0002]

2. Description of the Related Art Information such as map data handled by a navigation system such as a car navigation system is a CD.
-It is usually provided to the user by media such as ROM and DVD, but since the map data becomes old and lacks in practicality, the user needs to regularly obtain the media containing the latest map data. is there.

For example, Japanese Unexamined Patent Application Publication No. 20-29200 discloses that such a trouble of obtaining a new medium can be eliminated and that the system can be reduced in cost and size by eliminating the need for the medium.
In Japanese Patent Publication No. 00-55682, a site for distributing navigation data is provided on the Internet, and navigation data such as map data and guide route data is distributed from this site to an in-vehicle device through a mobile phone network. Techniques for displaying on a display are disclosed.

[0004]

However, in the method of distributing navigation data to each user from a site on the Internet through a public network such as a mobile phone network, the congestion status of the network and the communication between the base station and the mobile phone are inevitable. The time required for one data distribution varies greatly depending on the radio wave condition. If the time required for data distribution becomes long, the user will have to obtain the navigation data that has become older, and there is a problem that effective navigation cannot be received.

The present invention has been made to solve the above problems, and a navigation system and a navigation system capable of realizing high-quality navigation in a method of distributing navigation data from a site on the Internet through a mobile phone network. A device and a navigation method are provided.

[0006]

In order to achieve the above object, the navigation system of the present invention comprises a site on the Internet for providing navigation data, and a navigation device utilizing the navigation data provided from this site. In the navigation system, the navigation device includes a connection means for connecting to the site through a mobile telephone network, a current position information acquisition means for acquiring current position information, and a destination setting means for setting a destination. A notification unit for notifying the site connected by the connection unit of the current position acquired by the current position information acquisition unit and the destination set by the destination setting unit; and the connection unit connected by the connection unit. Display hands that display navigation data received from the site And the site sets one or more target points on the route from the current position to the destination notified from the navigation device, and relates to each of a predetermined number of continuous target points beyond the current position. And a means for simultaneously transmitting the navigation data of 1. to the navigation device.

According to the present invention, among the target points existing on the route from the current position of the user to the destination, each navigation data regarding a predetermined number of continuous target points preceding the current position is simultaneously distributed to the navigation device. , By displaying, even if the communication state between the site and the navigation device is temporarily deteriorated due to congestion of the public network or deterioration of the radio wave condition between the base station and the user, or the road condition. Even if the moving speed of the user fluctuates significantly, effective navigation data can be provided to the user, and high-quality navigation can be realized. The site may have means for analyzing the road condition based on the current position notified by the navigation device, and reflecting the analysis result on the road information resource for creating the navigation data.

[0008] The road information resources used to create the navigation data can be optimized according to the current situation such as road congestion, so that the navigation quality can be improved.

The navigation device has means for notifying the site of the current position information obtained by the current position information obtaining means to the site each time the mobile device reaches the target point,
The site may have means for comparing the notified current position information with the corresponding target point and calculating the position accuracy based on the comparison result.

Since it becomes possible to evaluate the position accuracy of the user on the site, the quality of navigation can be improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an overall configuration of a navigation system according to an embodiment of the present invention.

The navigation system 1 shown in FIG.
Sites on the Internet 2 operated by service providers such as navigation data supply management companies (hereinafter,
Called the service provider site. 4) and the navigation device 10 that uses the navigation data provided by the service providing site 4. The navigation device 10 is used by a user in a form mounted on the vehicle 6, for example. The navigation device 10 includes a navigation device body 5, a mobile phone 3 as a connecting means for connecting to the service provider site 4 through a mobile phone network 11, a speaker 7 for outputting navigation audio data, and a GPS from a geostationary satellite 8. GP receiving signal
It is composed of an S antenna 9 and the like.

FIG. 2 is a front view showing the appearance of the navigation device body 5, and FIG. 3 is a side view thereof. As described above, the navigation device body 5 is provided with the power key 11 for switching the main power on and off, the keys 13a to 13k for inputting user commands, the LCD display 15 for displaying navigation data, and the like. LCD
As shown in FIG. 3, the display 15 is supported by a base 17 so that the screen can be easily seen by a user through a stand 19 equipped with a tilt / swivel mechanism so that the display 15 can be swung back and forth and left and right.

The user command keys 13a to 13k include
CTR (Control) key 13a for adjusting screen contrast and audio output volume, and DSP (Display) for switching between displaying navigation data received by the mobile phone 3 and displaying other external input images
A key 13b, a Data key 13c for acquiring and displaying the traffic jam information from the service provider site 4, and a connection for starting the connection with the service provider site 4 to set a destination, a preferential route, etc. CRS (Course) key 1
3d and user (vehicle 6) from the service provider site 4
P. for obtaining and displaying information regarding the current position of the P. A P (Present Position) key 13e, a NAV (Navigation) key 13f for obtaining and displaying navigation data from the service provider site 4, and a corner angle displayed on the LCD display 15 of the navigation device body 5 by the user. Mark key 13g for notifying the service provider site 4 that a navigation point such as an intersection has been reached, and various function keys 13h, 13 for registering coordinates of a home location, etc.
i, 13j, 13k, etc.

FIG. 4 is a block diagram showing the system configuration of the navigation device 10 that uses the navigation data provided from the service provider site 4. As shown in the figure, the navigation device body 5 includes a mobile phone voice input processing unit 20, a GPS receiver 21, a GPS data processing unit 22, a mobile phone data input / output processing unit 23, a mobile phone connection control unit 24, and a key input. A processing unit 25, an external image / audio input processing unit 26, an external image / audio data processing unit 27,
Navigation processing unit 28, voice data output processing unit 2
9 and a display data output processing unit 30.

The mobile phone voice input processing unit 20 is a mobile phone 3
Handle the input of the call voice. GPS receiver 21 is GP
GP sent from the geostationary satellite 8 through the S antenna 9
The S signal is received. The GPS data processing unit 22 uses GPS
The GPS signal received by the receiver 21 is analyzed to calculate the current position of the user (vehicle 6). The mobile phone data input / output processing unit 23 processes input / output of various data for navigation with the mobile phone 3. The mobile phone connection control unit 24 controls switching between connection and disconnection between the mobile phone 3 and the service providing site 4. The key input processing unit 25 processes the input of the user command keys 13a to 13k.
The external image / sound input processing unit 26 is, for example, a CD-ROM.
It processes the input of image / sound data imported from external media such as DVD and DVD. The external image / sound data processing unit 27 performs processing such as demodulation and reproduction of the image / sound data input from the external image / sound input processing unit 26.

The navigation processor 28 processes (executes) the user command input through the key input processor 25, and the current position of the user (vehicle 6) calculated by the GPS data processor 22. A current position notification processing unit 32 that performs processing for notifying the service provider site 4 using the mobile phone 3, and navigation that generates display data and voice data based on the navigation data received from the service provider site 4. The data processing unit 33 and the like are provided. Also,
The user command processing unit 31 indicates that the user (vehicle 6) has reached a navigation point, which is a target point existing on the route from the current position to the destination, when the Mark key 13g is operated by the user. 4 has a point arrival notification processing unit 31a for notifying the user.

The voice data output processing unit 29 receives voice of the mobile phone 3 input from the mobile phone voice input processing unit 20, external voice data generated by the external image / voice data processing unit 27, or the navigation processing unit 28. A process for outputting a sound from the speaker 7 is performed based on the sound data for navigation generated in (1).
The display data output processing unit 30 performs processing for displaying the external image data generated by the external image / audio data processing unit 27 or the display data for navigation generated by the navigation processing unit 28 on the LCD display 15.

On the other hand, the mobile phone 3 is provided with a mobile phone unit 34 for realizing the functions of a normal mobile phone and a navigation device connection processing unit 35 for processing the connection with the navigation device body 5.

Next, the operation of the navigation system 1 of this embodiment will be described.

(1) Acquisition of current position of user (vehicle 6) In the navigation device body 5, the GPS signal sent from the geostationary satellite 8 is received by the GPS receiver 21 through the GPS antenna 9, and the GPS data processing unit 22 is received. At GPS
The signal is analyzed to calculate the current position of the user (vehicle 6). The current position notification processing unit 32 in the navigation processing unit 28 provides the current position calculated by the GPS data processing unit 22 during the period in which the mobile phone 3 is connected to the service providing site 4, for example, at a fixed time cycle. The processing is performed so as to notify the former site 4.

That is, the current position notification processing unit 32 sends a connection request between the mobile phone 3 and the service providing site 4 to the mobile phone connection control unit 24. Upon receiving this connection request, the mobile phone connection control unit 24 causes the mobile phone unit 34 to execute the connection process with the service providing site 4 through the navigation device connection processing unit 35 of the mobile phone 3.

When the mobile phone 3 and the service provider site 4 are connected, the current position notification processing unit 32
Requests the mobile phone data input / output processing unit 23 to notify the service provider site 4 of the latest information on the current position of the user (vehicle 6) calculated by the GPS data processing unit 22 through the mobile phone 3. Give out. When the mobile phone data input / output processing unit 23 receives this request, the mobile phone unit 34 of the mobile phone 3 is connected to the navigation device connection processing unit 3
The current position information and the transmission command are given through 5. The mobile phone unit 34 of the mobile phone 3 executes this transmission command. As a result, the navigation device 10 notifies the navigation device 10 of the current position of the user (vehicle 6).

(2) Setting of Destination FIG. 5 is a flow chart of the operation from setting the destination in the navigation device 10 to acquiring the first navigation data.

The user is the C of the navigation device body 5.
Press the RS key 13d (step 100). When the CRS key 13d is pressed, the mobile phone 3 is connected to the service provider site 4 by the navigation processor 28 (user command processor 31) of the navigation device body 5, and the mobile phone 3 is connected from the service provider site 4 through the Internet 2. The data of the main menu screen for the navigation service is distributed to the navigation device 10 of the user (vehicle 6) (step 101).

The main menu screen data received by the mobile phone 3 is sent to the navigation device body 5 through the navigation device connection processing section 35 of the mobile phone 3. In the navigation device body 5, the data of the main menu screen sent from the mobile phone 3 is taken into the navigation processing unit 28 through the mobile phone data input / output processing unit 23, and the navigation data processing unit 33 of this navigation processing unit 28 It is converted into display data and displayed on the LCD display 15 connected to the navigation device body 5 by the display data output processing unit 30 (step 102).

When the navigation service is selected by operating the user command keys 13a to 13k on the main menu screen displayed on the LCD display 15 of the navigation device body 5 (step 10).
3) The service provider site 4 delivers the data of the user authentication screen to the navigation device 10 in response to the request for the navigation service (step 104).

As a result, the L of the navigation device body 5
A user authentication screen is displayed on the CD display 15 (step 105). The user inputs the user ID and the telephone number on this user authentication screen (step 106).
At the service providing site 4, when the user ID and the telephone number are acquired, the information is collated with the information in the user management database of the service providing site 4 to authenticate the user (step 107). If the authentication is successful, The data of the input screen for setting the destination / priority selected route and the like is distributed to the navigation device 10 of the user (step 108).

Here, when the user is provided with a class according to the difference in service usage authority, a plurality of types of setting input screens having different configurations such as the type and number of input items are prepared for each class. Alternatively, the user's membership class may also be determined at the time of authentication, so that the setting input screen of the type corresponding to the user's membership class may be delivered.

As a result, L of the navigation device body 5
The input screen for setting the destination / priority selected route or the like is displayed on the CD display 15 (step 109), and the user inputs the destination as indispensable data on this setting input screen, and if necessary, the purpose. The priority selection route to the ground (highway / general road, distance, time, scenery, etc.) is input (step 110).

At the service provider site 4, a route from the current position to the destination is calculated based on the setting information given from the navigation device 10 and the current user position,
Navigation data such as map data and guide route data is created and delivered to the navigation device 10 (step 111).

(3) Navigation Data Distribution Method FIG. 6 shows a navigation data distribution method by the navigation system 1 of this embodiment. The navigation data is a navigation point (NP1, which is a target point existing on the route from the current position to the destination).
It is created for each NP2, ...). A navigation point is a point that is an important navigation target such as a corner or an intersection. In the navigation system 1 of this embodiment, among the plurality of navigation points existing on the route from the current position of the user (vehicle 6) to the destination, the navigation data for the navigation points from the current position to a predetermined number of points are navigated. The data is collectively delivered to the device 10. For example, in FIG.
In the example, the navigation data of three consecutive navigation points (NP1 to NP3) ahead of the current position of the user (vehicle 6) is collectively delivered as the first delivery data. The number of pieces of navigation data to be distributed may be constant, but may be adjusted depending on the distance from the current position. For example, 30 km
The navigation data of up to five navigation points within the maximum may be delivered.

When the user (vehicle 6) has passed the navigation point (NP1) ahead of the navigation point (NP1), the navigation point (NP1) is set as a new current position, and the navigation points up to three points ahead (NP2-). The navigation data of NP4) is distributed to the navigation device 10 as the second distribution data.

(4) Details of Navigation Data FIG. 7 shows an example of navigation data displayed on the LCD display 15 of the navigation equipment body 5.
As shown in the figure, the LCD of the navigation device body 5
In a portion 71 on the left side of the screen of the display 15, navigation data 71 regarding a predetermined number of consecutive navigation points ahead of the current position of the user (vehicle 6) is displayed.
As a, 71b, and 71c, the distance from the current position to each navigation point, the guidance direction at each navigation point, the road congestion situation near each navigation point, and the like are displayed at the same time vertically and vertically (direction of travel). Here, the guidance direction at the navigation point is indicated by an arrow, and the road congestion situation is identified and displayed by the form (shape, color, display brightness) of the arrow.

As described above, the navigation data concerning the predetermined number of consecutive navigation points ahead of the current position of the user (vehicle 6) is collectively distributed to the navigation device 10 and is displayed on the navigation device 10, thereby displaying the public network. Even if the communication state between the service provider site 4 and the navigation device 10 is temporarily deteriorated due to congestion of radio waves between the base station and the user, or due to road conditions, Even if the moving speed of the vehicle 6) fluctuates greatly, effective navigation data can be provided to the user.

Further, in the central portion 72 of the screen, as detailed navigation data regarding the next navigation point, a name 72a such as an intersection name of the next navigation point, a simple map 72c, a distance 72d from the current position to the destination, Numerical data such as the scheduled time 72d for arriving at the destination is displayed. Further, in the simple map 72c, the guidance direction at the navigation point is indicated by the arrow 7
2b or the like. The form (shape, color, display brightness) of the arrow 72b indicates the degree of traffic congestion. In addition, the simple map 72c includes the symbol 72 of the target building.
e is arranged.

Further, on the right side of the screen, a TIME graph 72g graphically showing the expected time of arrival at the destination and a DIST graph 72f graphically showing the distance from the current position to the destination are displayed.

Here, data 71a, 71b, 71c of a plurality of navigation points, names 72a such as intersection names among detailed navigation data, simple map 72c, arrow 72b on the simple map 72c, etc. are the service provider site. 4 is supplied as image data.
The scheduled time 72d for arriving at the destination is supplied as numerical data from the service providing site 4. Current time 7
2h, the distance 72d to the destination, etc. are based on the data obtained by the calculation in the navigation device body 5.

A check mark display portion 73 is provided at the bottom of the screen. This check mark display section 7
3 starts blinking when the distance 72d from the current position to the destination becomes equal to or less than a predetermined value, and through this blinking, the user operates the Mark key 13g of the navigation device body 5 to display an actual navigation point. This is to urge the user to notify the arrival timing. The blinking of the check mark display portion 73 is ended by pressing the Mark key 13g.

The data of the distance from the current position to the destination displayed as the DIST graph 72f is based on the latitude and longitude of the navigation point distributed from the service providing site 4 and the GPS data, and the navigation of the navigation device body 5 is carried out. It is calculated by the data processing unit 32.

The data of the estimated time of arrival at the destination, which is displayed as the TIME graph 72g, is stored in the GPS data by the navigation data processing unit 32 of the navigation device body 5.
The moving speed of the user (vehicle 6) is calculated based on information on the current position acquired in real time from, and calculated based on the detected moving speed and the distance to each navigation point.

(5) Map Matching FIG. 8 shows the flow of map matching. The user operates the Mark key 13g of the navigation device body 5 at the timing of reaching the navigation point (step 200). When the Mark key 13g is operated, a user command corresponding to the Mark key 13g is given to the user command processing unit 31 in the navigation processing unit 28 through the key input processing unit 25 of the navigation device body 5.

When the user command processing unit 31 receives the user command corresponding to the Mark key 13g, the GP
Processing is performed so as to notify the service provider site 4 of the user's current position, current time, tracking satellite information, position / time log, user's telephone number, etc. obtained through S through the mobile phone 3 (step 201).

At the service providing site 4, the user providing the service is identified by the received telephone number, and the position accuracy is calculated by comparing the current user position obtained from the identified user with the corresponding navigation point ( Step 202). It is determined whether the position accuracy is within the allowable range (step 203), and if it is within the allowable range, the next navigation data is distributed to the user's navigation device 10 (step 205). If the comparison error is not within the allowable range, then the user's navigation device 10
If the current position of the user (vehicle 6) clearly deviates from the calculated route to the destination, the current position sent from is monitored for a predetermined time, and this is displayed to the user or Notify by voice message, calculate a new route from the current position to the destination,
Navigation data for user's navigation device 1
It is delivered again to 0 (step 206).

At the service provider site 4, the road information published by the public institution is obtained (step 211), and based on this road information and the current position information notified from the navigation device 10 of each user. Site-specific road information database 81 that analyzes road conditions such as road congestion and reflects the current road conditions based on the analysis results.
Is created (step 212), and navigation data to be distributed to each user is created using this road information database 81 (steps 205, 206). The navigation data distributed from the service providing site 4 to the user is displayed on the screen of the LCD display 15 in the above-described format (step 208).

As described above, by using the site-specific road information database 81 that reflects road conditions such as road congestion, high quality navigation can be provided to each user.

When the user arrives at the destination, the user operates the Mark key 13g of the navigation device body 5. Mar
When the k key 13g is operated, the navigation device body 5 sends the current position, the current time, the tracking satellite information, the position / time log, the user's telephone number, etc. acquired by the GPS to the service provider site 4 through the mobile phone 3. Notify (step 201).

When the service provider site 4 determines that the user (vehicle 6) has arrived at the destination (YES in step 204), the usage fee is calculated, and the calculated usage fee and the message indicating the end of navigation are sent to the user. To the navigation device 10 (step 207).
As a result, the usage fee and the navigation end message are displayed on the screen of the LCD display 15 of the navigation device body 5 (step 210).

(6) Display of status information When the Data key 13c of the navigation equipment body 5 is pressed by the user, the key input processing portion 25 of the navigation equipment body 5 causes the user command processing portion 31 of the navigation processing portion 28 to display. , Data key 13c
A user command corresponding to is given. When the user command processing unit 31 receives the user command corresponding to the Data key 13c, the user command processing unit 31 executes processing to request the service provider site 4 for the traffic congestion information near the user's current position through the mobile phone 3. Service provider site 4
When this request is received, the road information database 8
1 is searched, response data to the request is created and returned to the user's navigation device 10. When the navigation device body 5 receives and processes this response data through the mobile phone 3, for example, as shown in FIG.
Congestion information near the current position of the user (vehicle 6) is displayed on the LCD display 15 of the navigation device body 5.

Furthermore, the navigation device body 5 P.
When the P key 13e is pressed, the navigation device body 5
The navigation processing unit 2 through the key input processing unit 25 of
8 in the user command processing section 31 P key 13
A user command corresponding to e is given. The user command processing unit 31 uses the P. When the user command corresponding to the P key 13e is received, the processing is executed so as to request the information regarding the current position of the user (vehicle 6) from the service providing site 4 through the mobile phone 3. Upon receiving this request, the service provider site 4 searches its own road information database 81, creates response data for the request, and returns it to the user's navigation device 10. When the navigation device body 5 receives and processes this response data through the mobile phone 3, information relating to the user's current position is displayed on the LCD display 15 of the navigation device body 5 as shown in FIG. 10, for example. As described above, according to the navigation system 1 of this embodiment, the service provider site 4 and the navigation device 10 are connected to each other due to congestion of the public network, deterioration of the radio wave condition between the base station and the user, and the like. Even if the communication state between the user (vehicle 6) temporarily deteriorates or the moving speed of the user (vehicle 6) fluctuates greatly due to road conditions, a predetermined number of consecutive points from the current position of the user (vehicle 6) continue. By collectively delivering and displaying the navigation data regarding the navigation points to the navigation device 10, it is possible to provide the navigation data that is effective in terms of timing, and realize high-quality navigation.

The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

The navigation device 10 may be mounted on a moving body other than the vehicle 6 and used.

As the connecting means for connecting the navigation device 10 to the service provider site 4 through the mobile phone network 11, not only the mobile phone 3 but also the mobile phone network 1 is connected.
Any terminal having a function capable of connecting to the Internet 2 through 1 may be used.

[0054]

As described above, according to the present invention,
Among the target points existing on the route from the user's current position to the destination, each navigation data regarding a predetermined number of continuous target points ahead of the current position is simultaneously distributed to the navigation device and displayed, thereby making the public Even if the communication condition between the site and the navigation device temporarily deteriorates due to network congestion or deterioration of the radio wave condition between the base station and the user, or the user's traveling speed increases due to road conditions. Even if it fluctuates, effective navigation data can be provided to the user, and high-quality navigation can be realized.

Further, since the road information resource used for creating the navigation data can be optimized according to the current situation such as road congestion, the navigation quality can be improved.

Further, since it becomes possible to evaluate the position accuracy of the user on the site, the quality of navigation can be improved.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a navigation system according to an embodiment of the present invention.

FIG. 2 is a front view showing the appearance of the navigation device body of FIG.

FIG. 3 is a side view of the navigation device body of FIG.

4 is a block diagram showing a system configuration of the navigation device body of FIG.

FIG. 5 is a flow chart of an operation from setting of a destination by a user to acquisition of first navigation data in the navigation system of this embodiment.

FIG. 6 is a diagram showing a distribution method of navigation data.

FIG. 7 is a diagram showing an example of navigation data displayed on a navigation device body.

FIG. 8 is a diagram showing a flow of map matching.

FIG. 9 is a diagram showing a display example of traffic congestion information near a user's current position.

FIG. 10 is a diagram showing a display example of information about a user's current position.

[Explanation of symbols]

1 ... Navigation system 2 ... Internet 3 ... Mobile phone 4 ... Site 5 ... Navigation device body 6 ... User 8 ... Geostationary satellite 9 ... GPS antenna 10 ... Navigation device 13a to 13k ... User command key 15 ... LCD display screen 20 ... Mobile phone voice input processing unit 21 ... GPS receiver 22 ... GPS data processing unit 23 ... Mobile phone data input / output processing unit 24 ・ ・ ・ ・ Mobile phone connection controller 25 ... Key input processing unit 26 ... External image / voice input processing unit 27 ... External image / audio data processing unit 28 ... Navigation processing unit 29 ... Voice data output processing unit 30 ... Display data output processing unit 31 ... User command processing unit 31a ...- Point arrival notification processing unit 32 ... Current position notification processing unit 33 ... Navigation data processing unit 34 ... Mobile phone unit 35 ... Navigation equipment connection processing unit 81 ... Road information database

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ identification code FI theme code (reference) H04B 7/26 H04M 3/00 B H04M 3/00 H04B 7/26 FM MF term (reference) 2C032 HB22 HB25 HC16 HC31 HD16 HD21 2F029 AA02 AB07 AB13 AC02 AC08 AC09 AC13 AC18 5H180 AA01 BB04 BB05 BB13 EE10 EE15 FF05 FF12 FF22 FF25 FF27 FF33 5K051 AA03 BB02 CC07 DD15 EE02 5K067 AA14 DDH33FF33

Claims (8)

[Claims] 1. A navigation system comprising a site on the Internet that provides navigation data and a navigation device that uses the navigation data provided from the site, wherein the navigation device is a mobile phone at the site. Connection means for connecting through a network, current position information acquisition means for acquiring information on the current position, destination setting means for setting a destination, current position acquired by the current position information acquisition means and destination setting means The destination set by the notifying means for notifying the site connected by the connecting means, and display means for displaying navigation data received from the site connected by the connecting means, the site is , From the current position notified by the navigation device A navigation system comprising one or more target points set on a route to the ground, and means for simultaneously transmitting to each navigation device navigation data for each of a predetermined number of consecutive target points beyond the current position. system. 2. The site has means for analyzing road conditions based on the current position notified by the navigation device, and reflecting the analysis result in road information resources for creating navigation data. The navigation system according to claim 1, wherein the navigation system is a navigation system. 3. The navigation device has means for notifying the site connected by the connecting means of the information on the current position acquired by the current position information acquiring means every time the destination is reached. 3. The navigation system according to claim 1, wherein the site has means for comparing the notified current position information with a corresponding target point and calculating position accuracy based on the comparison result. . 4. A connection means for connecting to a site on the Internet which provides navigation data through a mobile phone network, a current position information acquisition means for acquiring information on the current position, and a destination setting means for setting a destination. From the current location acquired by the current location information acquisition means and the destination set by the destination setting means to the site connected by the connection means, the notification means, and the site connected by the connection means And a display unit for displaying each received navigation data regarding a predetermined number of continuous target points ahead of the current position. 5. A means for notifying the site connected by the connecting means of the information on the current position acquired by the current position information acquiring means each time the target point is reached. Item 4. The navigation device according to item 4. 6. A step of connecting a navigation device using the navigation data to a site on the Internet for providing navigation data through a mobile phone network, the navigation device acquiring information of a current position and a destination. And notifying the acquired current position information and the set destination to the site connected through the mobile phone network, and at the site, from the current position notified from the navigation device. A step of setting one or more target points on a route to a destination and simultaneously transmitting to each navigation device navigation data relating to a predetermined number of consecutive target points beyond the current position; , The service connected through the mobile phone network Displaying each navigation data received from the destination. 7. The site has a step of analyzing a road condition based on the current position notified from the navigation device, and reflecting the analysis result in a road information resource for creating navigation data. 7. The navigation method according to claim 6, characterized in that: 8. A step of notifying the site, which is connected through the mobile phone network, of the information on the current position each time the target point is reached, and the site notifies the site of the information of the current position. 8. The navigation method according to claim 6, further comprising a step of comparing the information of the current position with a corresponding target point and calculating the position accuracy based on the comparison result.