JPH0749993A - Navigation device - Google Patents

Abstract

PURPOSE:To newly register the roads which are not registered yet on a map in a vehicle and to enable another vehicle to display those newly registered roads. CONSTITUTION:A navigation device is provided with a 1st recording medium 1 where the map information is recorded, a means 11 which stores the traveling locus of its own vehicle, a 2nd recording medium 9 where the new road information is recorded, and a means 5 which edits the traveling locus of the vehicle. In such a constitution, the traveling locus of its own vehicle is corrected and registered as a new load. Then a new road can be registered at an optional position by a key input operation 7 not by the traveling locus. Furthermore the new registered road can be displayed in another vehicle via a new road information recording medium 9 provided attachably/detachably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for displaying the present position of a vehicle on a map.

[0002]

2. Description of the Related Art FIG. 11 is a block circuit diagram of a conventional navigation device. In the figure, reference numeral 1 denotes a map information recording medium in which information such as a map is encoded and recorded, and is a CD
Read-only memory such as ROM or IC card is used. Reference numeral 2 is a map information reading unit that reads information such as a map recorded in the map information recording medium 1, 3 is a vehicle position detection unit that detects the current position of the own vehicle using a satellite, and 4 is information such as a map. The information display unit 5 to be displayed generates information such as a map in the information display unit 4 from the information such as the map read by the map information reading unit 2 and the current position information of the own vehicle detected by the vehicle position detection unit 3. A control unit 6, a semiconductor memory unit 6 for temporarily storing information such as a map, and a key input 7 for operating the control unit 5 when changing the scale of the information such as the map to be displayed or the area to be displayed.

Next, the operation will be described. Based on the current position information of the own vehicle detected by the vehicle position detection unit 3, the control unit 5 reads the map information of the area where the own vehicle is present from the map information recording medium 1 by the map information reading unit 2,
The map information and the current position of the vehicle are displayed on the information display unit 4. Further, the key input 7 is used to change the area of the map displayed on the information display unit 4, or the scale of the displayed map to change the displayed map information.

However, the normal map information recording medium 1 is a CD.
-A read-only storage medium such as a ROM is often used, and when the road is newly opened, it may differ from the displayed map.

In order to solve such a problem, in the "navigation device" disclosed in Japanese Patent Laid-Open No. 5-53502, the road on which the vehicle is traveling is not registered on the map. In this case, the road is judged to be a new road and recorded in another storage medium. The "navigation device" will be briefly described below.

FIG. 12 is a block circuit diagram of this conventional example. In the figure, 1 to 7 are the same as those of the conventional navigation device, and therefore the description thereof is omitted. A new road information recording unit 8 records and reads new road information.

FIG. 13 shows a display example of the information display unit 4. The road 4a shown by a solid line is a road registered in the map, and the road 4b shown by a dotted line is a road not registered in the map and is actually displayed. Absent. 4c shows the present position of the own vehicle.

Next, the operation will be described. The control unit 5, which has recognized the current position of the own vehicle by the vehicle position detection unit 3, reads the map information of the corresponding area from the map information recording medium 1, and displays the current position of the own vehicle on the information display unit 4 together with the map information. .

However, the road 4b not registered in the map
When passing through, the display screen shows that the host vehicle is located at a place other than the road as shown in FIG. At this time, if new registration is selected by the key input 7, as the vehicle travels on the unregistered road 4b, it is registered as a new road according to the information from the vehicle position detection unit 3, and the new road information recording unit 8 is registered. Record. Then, when the map of this area is called next time, the information of the new road read from the new road information recording unit 8 is displayed on the information display unit 4 together with the map information read from the map information recording medium 1.

[0010]

The conventional navigation device is constructed as described above, and the vehicle position detecting section 3 is used.
When a GPS (Global Positioning System) satellite is used in 1., if a large error occurs, such as when the number of receivable satellites is small, accurate new road information cannot be recorded.

When recording a new road, the vehicle cannot be registered unless the vehicle passes through the road.

Further, when the map information recording medium 1 to be used is used in another vehicle, there is a problem that a new road must be reregistered.

The present invention has been made in order to solve the above-mentioned problems. The new road information is registered and recorded based on the traveling locus of the host vehicle, or the new road information is registered and recorded by key input. It is also an object of the present invention to provide a navigation device capable of displaying new road information by mounting a second recording medium for recording new road information on a navigation device of another vehicle.

[0014]

According to a first aspect of the present invention, a navigation device records a first recording medium on which information such as a map is recorded, and new road information which is not recorded on the first recording medium. And a means for reading and displaying the map information and the new road information relating to the currently traveling position from the second recording medium and the first and second recording mediums.

A navigation device according to a second aspect of the present invention comprises means for registering and recording new road information in the second recording medium by key input.

The navigation device according to a third aspect of the present invention is configured such that the second recording medium is detachable.

According to a fourth aspect of the present invention, there is provided a navigation device in which the first recording medium is a read-only recording medium and the second recording medium is a rewritable recording medium.
In addition, the first recording medium and the second recording medium are integrally formed as a removable recording medium.

[0018]

The navigation device according to the invention of claim 1
The traveling locus of the host vehicle can be stored, and a predetermined locus can be registered and recorded as a new road after the traveling is completed.

In the navigation device according to the second aspect of the present invention, even a road on which the vehicle has not passed can be registered and recorded as a new road by key input.

The navigation device according to the third aspect of the present invention can display the map to which the new road is added simply by mounting the new road information recording medium on another vehicle.

The navigation device according to the fourth aspect of the present invention can display the new road in the same manner as the road registered from the beginning by only mounting one recording medium on the device.

[0022]

【Example】

Example 1. 1 is a block circuit diagram showing a navigation device according to a first embodiment of the present invention. In the figure, 1 to 7 are the same as those of the conventional navigation device, and therefore the description thereof is omitted. A new road information recording medium 9 stores new road information. A new road information recording / reading unit 10 records new road information in the new road information recording medium 9 or reads new road information from the new road information recording medium 9. A traveling locus storage unit 11 stores the current position (for example, longitude and latitude) of the host vehicle detected by the vehicle position detection unit 3.

Next, the operation will be described. The control unit 5, which has recognized the current position of the own vehicle by the vehicle position detection unit 3, reads the map information of the corresponding area from the map information recording medium 1, and has already recorded the corresponding area from the new road information recording medium 9. The existing new road information is read out, and the current position of the vehicle is displayed on the information display unit 4 together with the map information and the new road information. At the same time, the control unit 5 stores the current position of the host vehicle detected by the vehicle position detection unit 3 in the traveling locus storage unit 11. It should be noted that this travel locus information may be displayed on the information display unit 4 by an instruction from the key input 7.

FIG. 2 shows a display example of the traveling locus of the first embodiment. In the figure, “•” indicates the traveling locus of the host vehicle, and indicates that the vehicle has passed through this area from the upper left to the right in the figure. Road 4b is an unregistered road and is not actually displayed, but it can be seen from the traveling path that there was a road there. Therefore, the road 4b is used as new road information at the position indicated by the travel path by the key input 7, and the map classification corresponding to the new road type (width, national road, highway, etc.) is recorded on the new road information recording medium 9. Register and record with data such as coordinates. By doing so, the road 4b is displayed as a new road when the map of this area is called thereafter.

However, when the vehicle position detecting section 3 uses GPS satellites or the like, an error occurs in the current position of the own vehicle when the reception condition is bad. Therefore, despite traveling on the new road 4b, the traveling locus on the information display unit 4 is different from the actual route as the road 4d shown in FIG. 3, and this road 4d is registered as a new road. Will be done.
Therefore, the route of the road 4d is corrected by the key input 7, and the road 4b is registered and recorded as a new road. By doing this, it is possible to register an almost accurate new road even for a traveling locus having an error.

FIG. 4 is a flow chart of a procedure for registering a new road in the first embodiment, and FIG. 5 shows a display example when the traveling locus shown in FIG. 3 is corrected according to this flow chart.

First, it is determined whether or not there is a traveling locus that needs correction (S1). In this example, the locus 4e needs to be corrected first, so "YES" is selected and the process proceeds to step S2. In step S2, the cursor is moved by the cursor movement key (not shown) of the key input 7 to select the locus 4e (FIG. 5 (a)). The “+” mark in FIG. 5A indicates the cursor position. The selected trajectory 4e is shown in FIG.
It is easy to understand by changing the display, such as the outline shown in (b). Next, in process S3, the cursor is moved to the destination 4e 'on the locus 4e to be selected (FIG. 5B). Then, the locus 4e ′ moved in the process S4 is displayed as a new road as shown in FIG. 5 (c). Here, the process returns to step S1, and the loci 4f, 4g, ...
Then, the locus is corrected so that the road 4b in FIG. 3 is obtained. When the correction of all the loci is completed, "NO" is selected in the process S1, and the road 4b is registered and recorded in the new road recording medium 9 as the new road in the process S5. As described above, the traveling locus is corrected and registered as a new road.

In the first embodiment, the traveling locus storage unit 11
However, a part of the semiconductor memory unit 6 may be used. The new information recording medium 9 may also use a part of the semiconductor memory unit 6 in the same manner.

Example 2. FIG. 6 is a block circuit diagram showing a navigation device according to a second embodiment of the present invention.
The same reference numerals as those in FIG. 1 denote the same or corresponding portions, and thus the description thereof will be omitted.

Next, the operation will be described. The control unit, which has recognized the current position of the own vehicle by the vehicle position detection unit 3, reads the map information of the corresponding area from the map information recording medium 1, and the already-recorded new road information is recorded as the new road information recording medium 9 The new road information and the current position of the vehicle are displayed together with the map information on the information display unit 4.

In the second embodiment, a new road can be registered by key input regardless of the traveling locus. FIG. 7 is a flowchart of a procedure for registering a new road in the second embodiment, and FIG. 8 shows a display example when registering a new road according to this flowchart.

First, it is determined whether or not there is a new road to be registered (S6). In this case, since the new road is registered during 4h-4i, "YES" is selected. Next, key input 7
Move the cursor (marked "+" in Fig. 8 (a)) to the position of 4h with the cursor movement key of
(A)), set as a starting point (S7). Next, process S
Move the cursor to 4i which is the end point with 8 (Fig. 8
(B)), the end point 4i is set (S88). Next, the start point 4h and the end point 4i set in the process S9 are connected and displayed as a new road (FIG. 8 (c)). Next, in step S10, the created new road information is registered and recorded in the new road information recording medium 9. In this way, at any position on the map,
You can register a new road.

In the second embodiment, as in the first embodiment, the new information recording medium 9 may use a part of the semiconductor memory section 6.

Example 3. FIG. 9 is a block circuit diagram showing a navigation device according to a third embodiment of the present invention. In the figure, 1 to 7, 10 and 11 are the same as those of the navigation device of the first embodiment, and therefore their explanations are omitted. 9a
Is a new road information recording medium for recording new road information similar to that of the first embodiment, but is a recording medium such as an IC card or a mini disc that can be attached to and detached from the device.

The operation of the third embodiment is similar to that shown in the first and second embodiments, but in the third embodiment, the new road information recording medium 9a can be attached to and detached from the apparatus, and the new road information recording medium 9a registered in the own vehicle can be used. Road information can also be displayed on other vehicles.

Example 4. FIG. 10 is a block circuit diagram showing a navigation device according to a fourth embodiment of the invention of claim 4. In the figure, 3 to 7 are the same as those of the navigation device of the first embodiment, and therefore their explanations are omitted. Reference numeral 12 is an information recording medium in which map information and new road information are recorded, and is a recording medium having a reproduction-only portion in which map information is recorded and a rewritable portion in which new road information is recorded. An information recording / reading unit 13 reads the map information and the new road information from the information recording medium 12 and records the newly registered new road information in the information recording medium 12.

The operation of the fourth embodiment is the same as that of the first and second embodiments, but in the fourth embodiment, the map information recording medium 1 and the new road information recording medium 9 shown in the first embodiment are combined into one information recording medium. 12 information recording media 12
A map to which a new road has been added can be displayed only by mounting the device on the device, and a map to which a new road has been added can be displayed on other vehicles as well.

[0038]

As described above, according to the invention of claim 1, an accurate new road can be registered by storing the traveling locus of the host vehicle and correcting the traveling locus after the end of traveling.

Further, according to the second aspect of the present invention, a road on which the vehicle does not pass can be registered as a new road by editing the key input.

According to the invention of claim 3, the new road information recording medium can be detached, so that the map with the new road added can be displayed on another vehicle.

Further, according to the invention of claim 4, since the map information and the new road information can be recorded in one recording medium, the new road can be registered from the beginning simply by mounting the recording medium on the device. It can be treated as if it were a road.

[Brief description of drawings]

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

FIG. 2 is a diagram illustrating a map and a traveling locus display example of the navigation device according to the first embodiment.

FIG. 3 is a diagram showing a map and a display example of a traveling locus when the error of the traveling locus of the navigation device of the first embodiment is large.

FIG. 4 is a flowchart illustrating a procedure for correcting a travel locus of the navigation device according to the first embodiment.

FIG. 5 is a diagram showing a display example when the traveling locus of the navigation device of the first embodiment is corrected.

FIG. 6 is a block circuit diagram showing a navigation device according to a second embodiment of the present invention.

FIG. 7 is a flowchart showing a procedure for registering a new road in the navigation device according to the second embodiment.

FIG. 8 is a diagram showing a display example when a new road is registered by the navigation device according to the second embodiment.

FIG. 9 is a block circuit diagram showing a navigation device according to a third embodiment of the present invention.

FIG. 10 is a block circuit diagram showing a navigation device according to a fourth embodiment of the invention of claim 4;

FIG. 11 is a block circuit diagram showing a conventional navigation device.

FIG. 12 is a block circuit diagram showing a conventional navigation device.

FIG. 13 is a diagram showing a map display example of a conventional navigation device.

[Explanation of symbols]

 1 map information recording medium 2 map information read-out unit 3 vehicle position detection unit 4 information display unit 4a registered road 4b unregistered road 4c current position of own vehicle 4d unregistered road with large error 4e running locus 4f Driving locus 4g Driving locus 4h New road start point 4i New road end point 5 Control unit 6 Semiconductor memory unit 7 Key input 9 New road information recording medium 9a New road information recording medium 10 New road information recording / reading unit 11 Running locus storage unit 12 Information Recording medium 13 Information recording / reading unit

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[Procedure amendment]

[Submission date] January 10, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

First, it is determined whether or not there is a new road to be registered (S6). In this case, since the new road is registered during 4h-4i, "YES" is selected. Next, key input 7
Move the cursor (marked "+" in Fig. 8 (a)) to the position of 4h with the cursor movement key of
(A)), set as a starting point (S7). Next, process S
Move the cursor to 4i which is the end point with 8 (Fig. 8
(B)), the end point 4i is set (S8 ) . Next, process S
The start point 4h and the end point 4i set in 9 are connected and displayed as a new road (FIG. 8 (c)). Next, in step S10, the created new road information is registered and recorded in the new road information recording medium 9. In this way, a new road can be registered at any position on the map.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Matsui No. 1 Baba Institute, Nagaokakyo City Video System Development Laboratory, Mitsubishi Electric Co., Ltd. (72) Sadanobu Ishida No. 1 Nagaokakyo Baba Institute, Mitsubishi Electric Corporation Company video system development laboratory

Claims (4)

[Claims] 1. A first recording medium recording information such as a map, a second recording medium recording new road information not recorded in the first recording medium, and the first and second recording. Means for reading out and displaying map information and new road information relating to the currently traveling position from the medium, and storing the traveling locus when traveling on a road not displayed on this displayed map, and based on this traveling locus A navigation device comprising means for creating new road information and registering and recording it on the second recording medium. 2. A first recording medium recording information such as a map, a second recording medium recording new road information not recorded in the first recording medium, and the first and second recording. A navigation device comprising means for reading and displaying map information and new road information relating to a currently traveling position from a medium, and means for registering and storing new road information in the second recording medium by key input. 3. The navigation device according to claim 1, wherein the second recording medium is configured to be removable. 4. The first recording medium is a read-only recording medium, the second recording medium is a rewritable recording medium, and the first and second recording media are integrally formed. The navigation device according to claim 1, wherein the navigation device comprises: