JPH0696390A - Display method of navigation system for automobile - Google Patents

Abstract

PURPOSE:To simply transmit a simple map of an expressway, information on road guidance indications, a road shape, etc., of confluence or branching at need on the basis of automobile position information when a man specifies an expressway travel. CONSTITUTION:When the travel on the expressway is specified, a feature point specifying means 103 specifies a feature point 12 on the basis of the automobile position information 11 of an automobile position detecting means 102. Then a stored information taking-out means 104 takes a map 13 and data 14 regarding the feature point 12 from a storage device on the basis of the specified feature point 12. Then a display data calculating means 105 calculates the distance to the feature point 12 and arrival time 15 from the taken-out data 14 regarding the feature point 12 and the automobile position information 11 and they are inputted to an image generation means 106 together with the map 13 regarding the feature point 12 and automobile position information 11 to compose a display image 16, which is sent to a display device 107.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile navigation system, and more particularly to a display method when driving on a highway, a method for displaying a map at a reduced scale according to the vehicle speed, and a voice. The present invention relates to a method for correcting and displaying a vehicle position by input.

[0002]

2. Description of the Related Art Conventionally, the display method of an automobile navigation system in Japan usually uses a map including geographical data (latitude, longitude, etc.) corresponding to the vehicle position when the vehicle position can be measured. It is common to display on a display device and display a mark indicating the position of the vehicle on the map. There are, for example, methods using a GPS satellite, a method using a geomagnetic sensor, a method using a wheel difference between left and right, a method using a gyro compass, and a method using a gas rate gyro as a method of measuring the vehicle position. , Motorfan Magazine Separate Volume, New Model Bulletin 94th P52
-P53 (hereinafter referred to as Reference 1). In addition to the map display, in many cases, it is possible to display related information such as public facilities, gas stations, tourist spots, restaurants, etc. by human operation.

Most of the means for detecting the position of the own vehicle often include some error. In order to correct and display the position mark of the own vehicle at an appropriate position, for example, in Document 1, the position detected by the position detecting means is used. A method is shown in which map matching between information and a route on a map is performed every about 500 m to correct (hereinafter referred to as prior art 1).

On the other hand, the map and related information displayed on the display device are recorded as data on the CD-ROM. 1
Each piece of CD-ROM contains map data of several different scales and data of related information for one block when Japan is divided into several blocks. And humans,
Or, by the CD changer, the target CD-RO
Select M, set it in the system, and load it into memory.

There are several kinds of prepared maps of a reduced scale selected by a human being, and a function of automatically selecting a map of a default scale determined for each place.

The method of displaying the map and the vehicle position mark is as follows: (1) the map is fixed and the vehicle position mark moves on the screen; (2) the vehicle position mark is fixed at the center of the screen;
What scrolls the map so that this position is always in the center, (3) Fix the vehicle position mark at the center of the screen, and scroll the map so that this position is always in the center, It is considered that something that rotates the map so that it is always in the upper direction of the screen is measured and controlled, vol.30, p.75-p780 of No.9 (hereinafter,
Referred to as reference 2).

In contrast to such a general navigation system display method, for example, JP-A-1-149200 proposes a method of providing effective information from a starting point to a destination (hereinafter , Prior art 2). In this method, when a destination is input from an input device, information corresponding to a route to the destination is stored in a memory, and when each point on the route is designated and input, guidance information about the point is displayed on a display device.

[0008]

Consider the case of traveling on a highway.

On roads with complicated junctions and entrances, such as loop lines such as the Metropolitan Expressway,
It is desirable that the information be transmitted to the driver quickly and simply.

For example, at the next branch point, it is necessary to branch to the road on the left side, but when the road guidance sign is visible because the road guidance sign is located immediately before the branch point,
If you are in the rightmost lane, you may have to make continuous lane changes. In addition, the Metropolitan Expressway has many curves, and since it is driving at high speed except when traffic is congested, it takes a short time to shift the line of sight to the display device of the navigation system. On the map display, too much information is instantly visible, which in turn hinders proper judgment.

On highways, there is also a demand to know the distance to a certain destination and the guideline for the arrival time.

Also, due to the accuracy of the vehicle position detecting means, the vehicle position mark is often displayed at a position deviated from the position to be truly displayed. Most of the means for correcting this are such that the vehicle position mark is on the road regardless of whether it is a highway or a general road. Then, if it is corrected on parallel roads, a feeling of strangeness will occur. The correction means of the conventional technique 1 may cause the same problem on a road in which the highway and the general road are almost vertically overlapped with each other. Furthermore, when a GPS satellite is used as the vehicle position detecting means, it is often impossible to detect the vehicle position due to the influence of the time zone and surrounding conditions.

Further, since the map data is huge,
Since one CD-ROM cannot cover the whole of Japan, map data is divided into several CD-ROMs to cover the whole of Japan. But,
Expressways are continuous over a wide area such as the Shuto Expressway, Tomei and Meishin, and if the map data is interrupted, it may be necessary to replace it with another CD-ROM during driving. At this time, the accuracy of the map data is narrowed down and one C
If the data of all over Japan is recorded on the D-ROM, it will not be possible to correspond when a detailed map is needed.

Regarding the display according to the purpose, in the prior art 2,
For example, if you enter the desired exit of a highway, a list on the route will be displayed, and if a person specifies and inputs the point for which you want information from the list using some input device, the data related to that point will be displayed. You can get a detailed map of the surrounding area and the surrounding area as guidance information, but for a driver who is driving at high speed, there is too much information, and you have to select a place name from the list, and you do not know the driving point. , I can't easily tell what the next exit is.

A first object of the present invention is that when a person specifies that a person is traveling on a highway, the information from the CD-ROM is required to be distinguished from the general road traveling based on the vehicle position information. Instead of the above, a simple map of expressways, information on road guide signs, road shapes at merge / branch, etc. can be simply displayed to humans as needed, and a vehicle position mark can be displayed on the map. (EN) It is to provide a method of correcting and displaying on a highway, and a method of displaying a distance to a certain destination and an indication of arrival time.

Next, consider the vehicle speed and the time during which the driver can shift his or her line of sight to the display device.

Generally, in consideration of safety, the faster the vehicle speed is, the shorter the time when the line of sight can be moved to the display device, but the information that can be read instantaneously is limited, and the faster the vehicle speed, the more extensive information is required. When the vehicle speed is high, it is more appropriate to display the necessary information in a relatively wide range rather than the detailed map.

For example, when the map on the display device is viewed once and then, after a while, the viewed map is completely different, it is not easy to estimate the area in which the vehicle is running from the navigation system. On the other hand, while the car is stopped at a traffic light, you can continue to look at the map compared to when you are driving, so you can read more detailed information.In such a case, you can respond to human commands. It is appropriate to display a detailed map that is displayed. Conventionally, the scale of the map displayed on the display device can be selected by a human, but if the human selects the scale according to the vehicle speed, there is a problem in terms of safety. In addition, even if it has a function that can automatically select the scale, no scale is changed according to the vehicle speed.

A second object of the present invention is to provide a method of displaying the reduced scale and detail of the displayed map in accordance with the vehicle speed.

Further, the own vehicle position correcting means will be considered.

The map matching for correcting the own vehicle position information by the own vehicle position detecting device by comparing with the map data as in the prior art 1 requires detailed map data. For example, the error accumulates after driving on a road that is not completed at the time of map creation or a large parking lot. The error pool in the map matching can be dealt with by initializing the data and starting the correction again, but a means for the initialization is necessary. For initialization, a method in which a person specifies an appropriate position of the display device corresponding to the position of the own vehicle (touch panel or the like) can be considered, but it is very difficult to do this while running.

A third object of the present invention is that a person can easily instruct a main intersection or the like even while traveling (to the extent that it does not hinder driving), and according to the instruction, the vehicle position is initialized and appropriate Providing a vehicle position mark for the position.

[0023]

[Means for Solving the Problems]

(I) In order to achieve the above-mentioned first object, the present invention provides a display when a person is traveling on a highway, indicating that the person is traveling on the highway on a general road. It is to be distinguished from the display when it is displayed. It reduces the amount of data required when driving on a highway and makes it resident in the internal memory of the system, and based on this vehicle's position information and simple human operation related to the navigation system display, this memory is used. More necessary information is taken out, and a simple map of the expressway, information about the road guide signs, and the shape of the road at the confluence branch are displayed on the display device. In the map display state, the vehicle position mark is corrected on the expressway. To display.
Furthermore, the distance to the destination and the guideline for the arrival time are also displayed.

(II) In order to achieve the above second object,
The first invention displays a map excluding characters inside the system, determines the magnification of the small camera inside according to the vehicle speed, adjusts this magnification and the shooting position, and through an optical filter that blocks a specific color, Take this map with the camera inside the system. Then, necessary character data is taken out from the storage device, combined with the photographed map, and displayed on the display device.

According to a second aspect of the present invention, the color of the map to be extracted from the storage device is determined in accordance with the vehicle speed, the map data corresponding to this color is extracted and displayed inside the system, and the magnification of the small camera inside is determined according to the vehicle speed. Decide, adjust this magnification and shooting position, and shoot this map with the camera inside the system.
Then, retrieve the necessary character data from the storage device,
It is combined with the photographed map and displayed on the display device.

According to a third aspect of the invention, the color and scale of the map to be retrieved from the storage device are determined in accordance with the vehicle speed, the map data corresponding to this color is retrieved, this data is converted into enlargement / reduction data, and then displayed on the display device. To do.

(III) In order to achieve the third object,
According to the present invention, a person inputs an identification name of a main intersection, a station front, a bridge, or the like from a voice input device, recognizes it from a table of identification names in a storage device, and initializes a vehicle position correcting means, at the same time, Correct the vehicle position mark on the map to the location of the identification name and display it. Further, when the vehicle position cannot be detected, or when a person specifies the map search mode, if a voice input is performed, a map including the identification name is displayed.

[0028]

According to the above means (I), the display data for the expressway is resident in the memory, so that it is possible to eliminate the need to reload the data (replace the data in the memory) during traveling. It is possible to continue traveling without changing data to another CD-ROM while the navigation system is traveling, without interruption of data.

In addition, a highway entrance, a rest area, a confluence branch,
Since you can quickly get information such as toll gates, for example,
Even if you are driving on a road with complicated junctions such as the Shuto Expressway, you can get information about the sign faster than the signs installed on the expressway and make necessary lane changes with plenty of time. become.

Further, since the vehicle position mark is always corrected on the expressway, even if the correction is not completely correct, it will not cause any discomfort to humans. In addition, by displaying the distance to the destination and the guideline of the arrival time, for example, it is possible for a human to refer to a driving plan such as taking a break at a break place two ahead.

According to the above means (II), the map displayed in the system is photographed by changing the magnification of the small camera inside the vehicle based on the vehicle speed. Therefore, when the vehicle speed is fast, the range is wide and slow. At this time, the scale of the displayed map can be changed according to the vehicle speed such as a narrow range.

Further, since the color processing of the map and the limitation of the character output are performed based on the vehicle speed, it is possible to prevent unnecessary information from being displayed, and for the reason that the vehicle speed is high, the time when a human can shift his or her line of sight to the display device is short. However, it will be easier to decipher the displayed map.

According to the above-mentioned means (III), since the initialization of the correction can be carried out by voice input, it is possible to perform the initialization in a timely manner without causing any trouble to the driving even while the vehicle is running, so that the correction initialization is relatively safe. It becomes a means. In addition, if the GPS satellite cannot detect the position of the vehicle (when there are two or less satellites that can receive the antenna), or if you input the identification name by voice in the map search mode, a map containing this identification name will be displayed. Therefore, it becomes possible to easily search for a map such as a destination.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a display method according to the present invention when a person specifies that a person is traveling on a highway. Hereinafter, based on FIG. 1, description will be made with reference to supplementary explanatory diagrams of FIGS. 2 to 6.

It is assumed that it is specified that the vehicle is traveling on a highway (step 101). At this time, the feature point specifying means 103 is based on the own vehicle position information (latitude, longitude, etc.) 11 by the means 102 for detecting the own vehicle position such as a GPS satellite.
The feature point 12 is designated by. Here, the feature points on the expressway are the expressway entrance / exit (IC) and the junction (J
CT), rest areas (SA, PA), toll gates are all collectively referred to, and may also include tunnels, bridges, emergency shelters, emergency telephone installations, etc. However, in the following,
Expressway entrance (IC), junction (JCT), rest area
(SA, PA) and toll booth will be explained as characteristic points.

FIG. 2 shows characteristic points on the Kanetsu Expressway (Nerima IC21, Takasaka SA22, Fujioka JCT23, etc.)
Is represented. However, not all feature points are displayed.

On the basis of the specified feature points 12, a diagram relating to the feature points from the storage device 104 (symbol 13, data or code in the case of computer processing, etc.) and data 14 relating to the feature points (features) The latitude and longitude of the point and the distance between the points before and after). Here, the diagrams related to the feature points are the overall diagram 51 (see FIG. 3) and the peripheral diagram 52.
(See FIG. 4), a guide map 53 (see FIG. 5), and the like, and description will be added below.

The general view 51 relating to the characteristic points shows the expressway including the characteristic points in the widest possible range. It may be the entire expressway or may be limited to a certain range. Further, the position on the display of the designated feature point at this time is not limited. In other words, the road in front and behind may be displayed near the center of the feature point, or the road only in the traveling direction may be displayed at the end of the feature point. In this overall view, the display of the names of designated feature points is emphasized as compared with the display of the names of other feature points. Figure 3
[Fig. 4] is an example of an overall view when the Kanetsu Expressway Hanazono IC 24 is designated.

The peripheral diagram 52 related to the characteristic points is a diagram showing designated characteristic points, characteristic points before and after the designated characteristic points, and general roads connected to the designated characteristic points. However, the number of feature points included in one peripheral diagram is not limited. In this peripheral diagram, the display of the name of the specified feature point is emphasized as compared with the display of the names of other feature points, the names of general roads, the destination, and the like. Figure 4 shows the Kanetsu Expressway Tsurugashima IC
It is an example of a peripheral diagram when 25 is specified.

The guide map 53 related to the feature points means the road guide signs and road shapes in the case of expressway entrances and exits and junctions, the service contents in the case of rest areas, and the toll booth in the case of toll gates. The charges from the main ICs are shown. FIG. 5 shows an example of a guide map when the Shuto Expressway Kasai IC 26 is designated.

The storage device 131 in the storage information extracting means 104
The display data calculation means 105 calculates the road 31 to the feature point and the arrival time 32 (hereinafter, referred to as display data 15) based on the data 14 regarding the feature points extracted from the vehicle and the vehicle position information 11. The image (symbol 13) related to the point and the own vehicle position information 11 are taken in by the image creating means 106, where the display image 16 is synthesized and sent to the display device 107.

FIG. 6 shows that the vehicle is traveling on the Kanetsu Expressway in the direction of Niigata, and the vehicle positions are Kawagoe IC27 and Tsurugashima IC2.
6 is a diagram showing an example of a display image including a peripheral view having Tsurugashima IC 25 as a designated feature point when it is in the middle of 5. The numerical values displayed on the upper right of the display image represent the road 31 to the feature point and the arrival time 32, and the vehicle position mark 3
3 is displayed between Kawagoe IC and Tsurugashima IC.

Next, three methods will be described for the means 103 for designating a feature point when it is designated that a person is traveling on an expressway.

The first method will be described with reference to FIG.

Based on the vehicle position information 11, the feature point designating means 103 designates the feature point to be visited next. For example, when the vehicle is traveling on the Kanetsu Expressway toward Niigata and the vehicle position is between Kawagoe IC and Tsurugashima IC, Tsurugashima IC is designated as the characteristic point. This method is particularly effective for expressways, such as the Metropolitan Expressway, where junctions and junctions and entrances are complex and continuous. Here, regarding the determination of the traveling direction, the traveling direction can be determined by managing temporal vehicle position information and characteristic points that have already been visited in the characteristic point designating unit 103. Also, by including an azimuth meter, or something similar to the azimuth meter (calculation of azimuth using a gyroscope) in the vehicle position detection means,
You can judge the direction of travel.

The second method will be described with reference to FIGS.

As shown in FIG. 7, when the human is designating the highway traveling (step 101), the manipulating unit 121 capable of designating the type of the characteristic point is operated by the human to designate the characteristic point. The type information 41 is detected (step 11
1) Based on the feature point type information 41 and the vehicle position information 11, the feature point 12 to be visited next in this type is designated. Here, the operation unit 12 that specifies the type of feature point
1, the display device may be equipped with a remote controller, a voice input device, or any other shape and method. FIG. 8 shows an example of an operation unit provided in the display device. For example, when the vehicle is traveling on the Kanetsu Expressway toward Niigata and the vehicle position is midway between the Kawagoe IC and the Tsurugashima IC, and a person specifies a rest area, Takasaka SA is specified as the characteristic point. This method
For example, the rest place information can be taken out and used for determining the place where a person takes a rest based on the time required to reach the rest place and the distance.

The third method will be described with reference to FIGS. 9 to 12.

As shown in FIG. 9, when a person specifies traveling on a highway (step 101), the person further
The operation unit 122 capable of selecting before and after the feature point is detected by the number (the number of counters) 42 to be moved by a human being operating and instructing (step 114), and the current designated feature point is detected (step 115). ), The designated feature point is moved from the current designated feature point by the number of counters 42 (step 116). After the movement, the number of counters is set to 0 (step 117).

FIG. 10 shows an example of an operation unit provided in the display device as the operation unit 122 for selecting before and after the feature point (however, in the figure, the feature point reset operation unit 12 is shown.
3 is also displayed). For example, when driving on the Kanetsu Expressway toward Niigata and the current designated feature point is Tsurugashima IC25, if a person operates the operation unit and designates the rear once, the Takasaka SA22
Is designated as a new feature point. FIG. 11 shows how the display image changes when the display image includes the entire view, and FIG. 12 shows the change of the display image when the display image includes the peripheral view. According to this method, the information on the desired feature point can be known by a simple operation.

In the above, the three methods for designating the feature points have been described as independent ones, but a method for realizing all of them with one algorithm will be described with reference to FIG. 13 and Table 1.

First, the processing of an event caused by a human operating the operation unit will be described using the following symbols (M: highway driving specification mode, K: feature point type, i: front and rear key counters). To do.

M = 0: state where highway driving is not specified M = 1: state where highway driving is specified K = 0: standard K = 1: highway entrance / exit K = 2: rest area K = 3 : Junction branch K = 4: Toll gate i = i + 1: When the latter is input (or vice versa) i = i-1: When the former is input (or vice versa) i = -99: Reset state The algorithm of FIG. 13 will be described using this symbol.

It is judged whether or not the running designation mode M of the expressway is 1 (step 101). When M is 1, the type K information 41 of the feature point currently set is detected (step 111). Next, it is judged whether or not the counter i of the front and rear keys is -99 (step 112), and i is -99.
When, the vehicle position information 11 and the characteristic point type K information 41
Based on and, the next one of these types of feature points is specified as the feature point. However, when K is 0,
Regardless of the type, the next feature point to be visited is designated (step 113). When i is other than -99, the number 42 of the counter i is detected (step 114), the current feature point is detected (step 115), the type K information 41 of the feature point and the number i of the counter i of the front and rear keys 42. Based on and, in this type, the number 42 of i is moved from the current feature point to obtain a new feature point. However, when K is 0, the next feature point to be visited is specified by moving from the current feature point by the number of i regardless of the type (step 116). After moving the feature points, the counter i is set to 0 (step 11).
7). The feature point designated by step 113 or 116 is stored (step 118), and the designated feature point 1
It is output as 2.

Table 1 shows some examples of designated feature points when the vehicle position, human operation, and current designated feature points are changed, taking the Kanetsu Expressway as an example. However, it is assumed that the direction of travel is from Tokyo to the direction of Niigata, and that driving on an expressway is designated by humans.

[0056]

[Table 1]

A method 104 for extracting FIG. 13 related to the characteristic points and the data 14 related to the characteristic points from the storage device 131 will be described with reference to FIGS. 1, 14, 15, and 16.

First, FIG. 14 shows devices related to storage in the navigation system. In the storage device 131 of the system main body, FIG. 13 relating to the feature points and data 14 relating to the feature points are residently stored for the feature points of the expressways throughout Japan. Therefore, the non-volatile memory 134 (however, it can be overwritten) is used for this storage. When it is specified that you are driving on a highway,
By using this resident data,
Eliminate breaks in map data. In addition, it is possible to overwrite it so that it can handle changes in tolls and expansion of expressways.

Further, a normal map is read by the reading device 133 from a medium (for example, a CD-ROM 132 or the like) storing a detailed map and written in the storage device 131 of the system main body. A volatile memory 135 (overwritable, RAM) is used for this storage. Normally, a human being, using a CD-ROM containing a map with the location of the vehicle
Or the CD changer makes the choice. Use this read data when you have not specified that you are traveling on a highway.

The following description will be made only when the person is instructing to do so while traveling on a highway, so that only the resident memory 134 is used as the storage device 131.

A first method of extracting stored information will be described with reference to FIG.

Based on the designated feature points 12, the stored information extracting means 104 retrieves from the storage device 131 the relational diagram of the type defined by default for the designated feature points and the data relating to the designated feature points. . For example, on a highway such as the Metropolitan Expressway where complicated converging branches are continuous, it is determined by default that the guide map 53 is extracted for all feature points. Further, on other expressways, it is generally determined by default that the peripheral map 52, the JCT, the general map 51 for the rest area, and the guide map 53 for the toll booth are taken out by default. According to this method, the guide map is displayed one after another on expressways with complicated junctions and entrances and exits such as the Shuto Expressway, so that it is possible to quickly obtain useful information for humans. The default settings are necessary to display some information, just specifying that a person is traveling on a highway.

The second method will be described with reference to FIGS.

As shown in FIG. 15, the operation unit 124 capable of selecting the type of the figure related to the feature point is detected by the type information 43 of the related figure designated by the human being (step 11
9) Based on the type information 43 of the related diagram and the designated feature point 12, the related diagram of this type for the designated feature point and the data regarding the designated feature point are retrieved from the storage device 131. FIG. 16 shows an example of the operation unit provided in the display device as the operation unit 124 for selecting the type of diagram related to the feature point. According to this method, not only the default points for feature points but also other related diagrams can be displayed by a simple operation.

The means 105 for calculating the display data 15 to be displayed on the display device will be described.

First, the first method for calculating the road 31 to the characteristic point will be described with reference to FIG.

As the data 14 relating to the characteristic points, it is assumed that the characteristic point position 61 and the figure 62 obtained by polygonal approximation of the highway are retrieved from the storage device 131. Here, the broken line-approximated figure 62 is the data of the break points and the data of the distance of the straight line between the break points, and all the characteristic points also correspond to the break points. At this time, on this polygonal line approximation figure,
Based on the own vehicle position information 11, the own vehicle position 63 is placed, and the road data 31 from the own vehicle position to the characteristic point is calculated.
For example, when the characteristic point position 61 is Kosaka SA22 and the vehicle position 63 is between Kawagoe IC27 and Tsurugashima IC25, the distance from the vehicle position to the first break point 64,
The sum of the distances of the remaining polygonal lines becomes the road data from the vehicle position to the feature point.

Next, the second method for calculating the road 31 to the characteristic point will be described with reference to FIG.

The function 141 for managing the past mileage is set to 0 when the reference feature point 65 is passed. Then, the traveling distance 66 from the reference feature point is obtained by integrating the vehicle speed and the like (may be the wheel rotation speed). Here, the reference feature point may be a preset point, a point at which an automobile has entered the expressway, a position when a person is designated to be traveling on the expressway, or the like. Then, the storage device 13
Reference feature point 65 and designated feature point 1 extracted from 1
Road 67 between 2 and distance 6 from the reference feature point
The distance 31 to the designated feature point is calculated by taking the difference from 6.

Next, the first method for calculating the arrival time 32 to the feature point will be described with reference to FIG.

A management time 68 and a time width 69 are set in the clock function 142. In the function 141 for managing the past mileage, the mileage for each time width is the management time 6
Only 8 minutes are stored. Then, the data of the latest mileage 70 and the oldest mileage 61 in terms of time are exchanged for each time width 69, the data is totaled, the mileage 72 in the management time is calculated, and this is managed. The average vehicle speed 73 is divided by the time 68. Then, the road 31 to the characteristic point is divided by the average vehicle speed 73 to calculate the arrival time 32 to the characteristic point.

Second calculation of arrival time 32 to the feature point
The method will be described with reference to FIG.

A management time 68 and a time width 69 are set in the clock function 142, and a vehicle speed for each time width is stored for the management time 68 in the function 143 for managing the past vehicle speed. Then, for each time width 69, the latest vehicle speed 74 and the oldest vehicle speed 75 are replaced in terms of time, and the data are averaged to obtain the average vehicle speed 73.
Then, the road 31 to the characteristic point is divided by the average vehicle speed 73 to calculate the arrival time 32 to the characteristic point.

By displaying the distance to the feature point and the arrival time calculated as described above as numerical values, it can be used as a reference for deciding a place for a person to take a rest, for example, which is useful as an aid to the driving plan. Further, in the present invention, numerical accuracy is not desired, but it is sufficient as a standard for operation planning.

Means 1 for creating an image to be displayed on the display device
06 will be described.

When the FIG. 13 related to the feature points extracted from the storage device 131 is the overall view 51 and the peripheral view 52, the vehicle position is set at an appropriate position on the map based on the vehicle position information 11. When the mark 33 is combined and the guide map 53 is displayed,
Display as is. Here, the appropriate position is a position obtained by correcting the position of the vehicle on the nearest freeway, and the correction takes into consideration the passing feature points. Therefore, even if the own vehicle position mark is slightly deviated from the true position, the own vehicle position mark exists between the appropriate feature points on the expressway, which makes the human feel less uncomfortable.

Further, the road 31 and the arrival time 32 calculated by the display data calculation means 105 are combined with these display images and displayed.

Although the embodiment of the present invention regarding the display on the expressway has been described above, a method for displaying the external information will be further described with reference to FIG.

Generally, the manager (management group) of each expressway
Shows traffic information, accident information, weather information, etc. on expressways,
It is provided by using electronic bulletin boards installed on highways. Information may also be provided by radio broadcasting. Here, such external information 81 is provided in the form of a signal from an external transmitting means, and an antenna for receiving the signal and a device for decoding the received signal (the external information receiving means 151 together) are provided in the navigation system. Shall be installed as a part of.

The traffic jam information 82 includes the start and end points of the traffic jam and the average traffic flow speed in the traffic jam section. The traffic congestion information 82 is input to the image creating means 106, and it is displayed based on the start point and the end point of the traffic congestion to distinguish the traffic congestion in a corresponding range on the map (for example, by changing the color of the road display). To do. Further, the congestion information 82 is input to the display data calculation means 105, and the arrival time 32 to the characteristic point is calculated in consideration of information such as the start and end points of the congestion, and the average traffic flow speed in the congestion section. To do.

The accident information 83 is assumed to include the start point and the end point (or the center) of the lane regulation. The accident information 83 is input to the image creating means 106 to display that an accident has occurred at a corresponding position on the map (for example, by displaying an accident mark at that position).

The weather information 84 indicates the type of bad weather (snow, fog,
Heavy rain, strong wind, etc.), start and end points of bad weather condition, speed limit of bad weather section, chain restriction section. Input the weather information 84 into the image creating means 106,
Based on the type of bad weather and the start and end points of the bad weather condition, it is distinguished that bad weather is present in the corresponding range on the map (for example, the color of the road in the bad weather section is changed and the type next to it is snow, snow (Meaning chain regulation), fog, rain, wind, etc.) Further, the weather information 84 is input to the display data calculation means 105, and the arrival time 32 to the feature point is calculated in consideration of the information such as the speed limit section and its speed.

FIG. 22 shows the traffic from Takasaka SA on the Kan-etsu Expressway to Fujioka JCT23 due to heavy snow (average traffic flow speed 1
The following shows an example of display when the vehicle position is Kawagoe IC and the feature point is Fujioka JCT when the vehicle position is 0 km / h, which is slower than the speed regulation.

By displaying the information about the expressway provided from the outside on the navigation system, the information amount is slightly increased, but it is useful as information for making a more detailed driving plan.

FIG. 23 shows the vehicle speed according to the present invention.
It is an example of a first method of displaying the map at different scales and details.

Based on the vehicle position information 11 by the vehicle position detecting means 102, a map 332 including this position is displayed inside the system (step 301). Here, the map 332 to be displayed is not limited in form such as a map taken out from a storage device, a map film used for a slide (projector), or a map card. However, if a digital map is used, for example, it becomes easy to display the shortest time route to the destination which is derived by using another means, which is highly useful. In addition, the colors of roads such as main roads, highways, railroads, rivers, lakes, and one-way roads are changed according to types. Also, color stations, bridges, and public facilities as appropriate.

Next, the display scale calculation means 303 determines the target magnification 212 of the small camera 331 (CCD camera etc.) installed inside the system based on the vehicle speed information 211 by the vehicle speed detection means 302, and the internal camera zoom The actual magnification 213 of the camera is adjusted by the adjusting (controlling) means 304 (however, one having an autofocus function is used). Here, the display scale calculating means 303 and the internal camera zoom adjusting means 304 are separated because the target magnification is other means (in the present invention, the optical filter selecting means 30).
It is for use in 5), and when there is no such use, both means may be expressed together. Further, the distance between the camera 331 and the subject (the map 332 displayed inside) is kept constant to make focusing relatively easy.

The optical filter selection means 305 selects the optical filter 214 that blocks a specific color according to the target magnification 212 of the internal camera. For example, the vehicle speed is fast,
When the target magnification is small (when a wide range of maps is displayed), select an optical filter that blocks colors that represent a fine map such as a one-way road.

On the other hand, the internal camera position adjusting means 306 determines the target position of the internal camera 331 based on the own vehicle position information 11, and the camera position adjusting actuator 333.
To adjust the internal camera real position 215.

The internal camera 331 photographs the map 332 displayed inside the system and outputs the photographed image 216 (step 307). At this time, the position and scale (range) of the map photographed by the actual magnification 213 and the actual position 215.
Will be different. Further, since the image is taken through the optical filter 214, a specific color is not taken.

Actual magnification 213 and actual position 215 of the internal camera
If you detect, you can know the range and scale of the map to be photographed, so in the character data such as place names included in this range,
Character data 217 that seems necessary based on the map scale
From the storage device 334 (step 308).

The image creating means 106 creates a display image by synthesizing the image taken by the internal camera 216 and the drawing converted from the character data 217, and outputs it to the display device 107.

FIG. 24 shows an embodiment of the second method according to the present invention in which the scale and detail of the map are changed and displayed in accordance with the vehicle speed. Regarding FIG. 24, only the points different from the first method will be described.

Means for displaying a map inside the system 301
First, based on the own vehicle position information 11, the range of the map 332 displayed inside the system so as to include this position is determined. Next, the color to be displayed is determined based on the target magnification 212 of the camera, and the map data corresponding to this color, which is included in this range from the storage device, is extracted and displayed inside the system. In other words, at this point, the road details are set in advance. Therefore, it is not necessary to use an optical filter that blocks a specific color at the time of shooting.

The time-series data of the vehicle speed makes a slight vibration under various conditions.
If the correspondence is set to 1: 1, the scale of the display image (the target magnification of the camera) will also vibrate, and it is not suitable as an image to be displayed to a human or a camera zoom (magnification) control mechanism. Therefore, the following two methods will be described.

The first method is to divide the vehicle speed into several steps,
Although one scale (target scale) is assigned to one step, this algorithm has a simple algorithm, but when the vehicle speed oscillates near the boundary value of the steps, the scale of each step ( Changing to the target magnification) may be repeated violently.

In the second method, the vehicle speed at the time when the display scale is changed is stored, and when the vehicle speed changes from this vehicle speed by a certain threshold value, the display scale corresponding to the vehicle speed is changed and the vehicle speed at that time is changed. Is to remember. For example, assuming that the threshold value is set to 10 km, if the magnification at the time of 40 km is updated, it will exceed 50 km or 30
Do not update until less than km.

As a method of adjusting the photographing position of the camera,
Four examples will be explained.

The first example will be described with reference to FIG. An example of a map 332 inside the system, a camera 331 inside, a camera position adjusting actuator 333, 334 is shown, and (a) and (b) are respectively viewed from the rear direction and the lateral direction of the camera. . In this example, the camera position adjusting actuators 333 and 334 are two-degree-of-freedom actuators having a two-rail structure and capable of two-dimensional position movement. The rail width is always constant and one actuator 33 is used.
3 moves in the x direction and the other actuator 334 moves in the y direction. The internal camera 331 has actuators 333, 33.
The camera position 215 is set at the portion where both actuators cross each other by sliding in accordance with the movement of No. 4. Further, it is assumed that the rotation stopper mechanism operates so that the camera does not rotate when the camera slides. For example, the tightening pressure of the camera by the moving actuator rail is increased, and the tightening pressure of the camera by the actuator rail on which the camera slides is weakened.

In the second example of FIG. 26, the camera 331 and the expandable actuator 335 are connected to each other, and the actuator 335 is expanded and contracted to move in one direction (for example, the y direction).

In the third example of FIG. 27, the camera 331 is attached to the tip of the arm 336 (more than two degrees of freedom) and this arm is moved.

In the fourth example, the magnetic levitation phenomenon is utilized to levitate the camera 331 in an arbitrary space.

Up to the above, as a method of displaying the map at different scales and details according to the vehicle speed, which is the present invention,
I explained how to take an appropriate map inside the system with a small camera and display it on the display device.
Next, a third method according to the present invention, in which the scale and detail of the map are changed and displayed according to the vehicle speed, will be described with reference to FIG.

First, based on the vehicle speed information 211, the display scale calculating means 303 causes the map scaling factor 221.
And a map color 222 to be retrieved from the storage device. As a method for determining this magnification, the same method as the method described in the above-mentioned display scale calculating means can be used. Next, necessary data is extracted from the storage device based on the vehicle position information 11, the map enlargement / reduction ratio 221, and the map color information 222 (step 104), and based on the map enlargement / reduction ratio 221, this data is extracted. Data for each pixel of the display device is obtained (step 311).

For example, if the pixel position of the display device is (x,
y), the position of the map data fetched from the storage device is set to (X, Y) (that is, one data is stored for each position (X, Y)). At this time, when the displayed map range is twice the most detailed map range, the pixel position (x,
In y), data of X = 2x and Y = 2y will be obtained.

A display image is created based on the data for each pixel of this display device (step 106). This method directly obtains the data for each pixel of the display device based on the vehicle speed and is more reliable than the camera photographing method described above, but the memory is accessed each time to retrieve the data. The need arises.

FIG. 29 shows an embodiment of a method for correcting the position of the vehicle by voice input and initializing the correction means according to the present invention.

Based on the own vehicle position information 11 by the own vehicle position detecting means 102, the map data 411 in the predetermined range and the table 412 of the identification names of the traveling points in the predetermined range are retrieved from the storage device 131 (step 104). ). Here, the identification name of the traveling point refers to an intersection name, a road name, a station name, a bridge name, or the like.

When a person utters the identification name 413 by using the voice inputting means 501 such as a microphone, the voice waveform 414 is captured by the voice recognizing means 502.

Here, the voice recognition means 502 will be described with reference to FIG.

In the voice recognition means 502, the voice input means 5
01 and the reference voice waveform 421 stored in the buffer 511 and the reference voice waveform 421 generated by the reference waveform generation means 512 from each name code included in the table 412 of the identification names of the traveling points in the predetermined range (step 512). ) And
Collation determination is performed (step 513), and the corresponding identification name 41
5 is output, and if there is no corresponding one, the recognition identification name is output as “none”.

Next, the recognized identification name 415 is taken into the position correcting means 503.

The position correcting means 503 will be described here with reference to FIG.

FIG. 31 shows an example of the road network 431, the vehicle position 11 by the vehicle position detecting means, and the correction point 432. When the type of the recognition identification name 415 is the street A, the point closest to the uncorrected vehicle position information 11 on the corresponding street A on the map data 411 in the predetermined range is the correction point 432, and the correction means is set. initialize.

Even when the type of the recognition identification name 415 is other than a street (intersection, station, bridge, etc.), the initialization can be corrected by almost the same method. Continue with the corrective measures that have been performed from or do nothing.

According to this method, it is possible for a person to input the identification name by voice to initialize the correction means and correct the own vehicle position mark to the point of the identification name. Even when the vehicle position detecting means is used, it is always possible to correct at a known intersection (when the person knows in advance, when the name of the intersection is known from a sign or the like). In addition, the initialization can be easily performed and the accuracy can be secured when the correction means that requires the initialization is also used.

As for the display method of the navigation system of the automobile, the display method when a person specifies that the vehicle is traveling on a highway, the display method of changing the scale and detail of the map according to the vehicle speed, and the voice input The method of correcting and displaying the own vehicle position has been described.

In the present invention, the three display methods are independent of each other, but it is also effective to appropriately combine them. In addition, the display method when humans specify that they are driving on a highway is not limited to image recognition and other external communication means, even if they do not specify that a human is driving on a highway. Is also valid when specified by. Further, this method can be extended to national roads, prefectural roads, main roads, etc. if the memory restrictions are released (the capacity that can be used as resident memory is dramatically improved).

The above embodiment has the following effects. In other words, the display method when humans specify that they are traveling on a highway is to display a simple diagram (overall map, peripheral map, guide map, etc.) by distinguishing the display of a highway from the display of a general road. Therefore, the amount of data for this display is extremely small. Therefore, it can be made resident in the memory of the system main body. This causes the data to be reloaded (for example, if another C
There is no need to worry about switching to the D-ROM (it takes time to load and the map cannot be displayed during that time). In addition, even when there are complicated converging branches such as the Metropolitan Expressway, information such as the road shape and guide signs can be quickly transmitted based on the vehicle position, which is useful for changing lanes. Furthermore, feature points far away from the vehicle position can be selected with a simple operation, which is useful for driving planning (for example, at which rest place to rest). Further, since it is designated as an expressway, the own vehicle position is corrected to an almost appropriate position on the expressway and the own vehicle position mark is displayed, so that it is less uncomfortable for humans. Furthermore, the display of the way to the feature point and the arrival time is also useful for operation planning. In addition, adding information provided externally such as traffic jams, accidents, weather, etc. to the display will also be useful for making a more detailed driving plan.

The display method of changing the scale and detail of the map in accordance with the vehicle speed changes the scale of the map in accordance with the vehicle speed (in the present invention, the magnification of the camera for photographing the map displayed inside is changed). , For example, when the vehicle speed is fast, a wide range is displayed, and when the vehicle speed is slow, a narrow range is displayed.Therefore, the scale is constant regardless of the vehicle speed. After that, it is possible to solve the situation where it is difficult to understand where you are running. Further, since the detail of the display is changed in accordance with the vehicle speed (in the present invention, a specific color is not displayed, characters are limited, etc.), even if the vehicle speed is high and the time to shift the line of sight to the display device is short. , The display is easy to see without too much information.

In the method of correcting and displaying the position of the own vehicle by voice input, the information of the intersection, the road, the station, etc., which is clearly known to humans is input by voice to correct the position of the own vehicle. At the intersection, if the name displayed on the sign below the traffic light is read aloud toward the input device, the vehicle position mark is automatically corrected. Even if it is used together with a normal correction means, it is useful as an initialization. Further, even if the accuracy of the vehicle position detecting means is poor, it can be corrected at an intersection where the name is known.

[0122]

According to the present invention, necessary information while driving on a highway can be displayed in a simple form based on the own vehicle position information and a simple operation, and lane selection and driving plan judgment by merging and branching. To help. In addition, the scale and detail of the map can be changed according to the vehicle speed, and information of an appropriate amount and range can be provided to humans. Further, the voice input can be used to easily correct the vehicle position even if the accuracy of the vehicle position detection means is somewhat poor.

[Brief description of drawings]

FIG. 1 is a flowchart showing a display method of the present invention when traveling on a highway.

FIG. 2 is an explanatory diagram of characteristic points.

FIG. 3 is an explanatory diagram of an example of an overall view.

FIG. 4 is an explanatory diagram of an example of a peripheral view.

FIG. 5 is an explanatory diagram of an example of a guide map.

FIG. 6 is an explanatory diagram of an example of a display image displayed on the display device.

FIG. 7 is an explanatory diagram of a second method of designating feature points.

FIG. 8 is an explanatory diagram of an example of an operation unit that specifies types of feature points.

FIG. 9 is an explanatory diagram of a third method of designating feature points.

FIG. 10 is an explanatory diagram of an example of an operation unit that selects before and after a feature point.

FIG. 11 is an explanatory diagram showing how the overall view changes when a human operates an operation unit that selects before and after a feature point.

FIG. 12 is an explanatory diagram showing how a peripheral diagram changes when a human operates an operation unit that selects before and after a feature point.

FIG. 13 is an explanatory diagram of a method in which the first method and the third method for designating feature points are combined.

FIG. 14 is an explanatory diagram of a device and the like related to data storage.

FIG. 15 is an explanatory diagram of a second method for designating a relational diagram.

FIG. 16 is an explanatory diagram illustrating an example of an operation unit that selects a type of a related diagram.

FIG. 17 is an explanatory diagram of a first method of calculating a road to a feature point.

FIG. 18 is an explanatory diagram of a second method of calculating a road to a feature point.

FIG. 19 is an explanatory diagram of a first method of calculating the arrival time to a feature point.

FIG. 20 is an explanatory diagram of a second method of calculating the arrival time to a feature point.

FIG. 21 is an explanatory diagram of a method for displaying information provided externally.

FIG. 22 is an explanatory diagram that also displays information provided from the outside.

FIG. 23 is an explanatory diagram of a first method of displaying the map by changing the scale and detail of the map according to the vehicle speed of the invention.

FIG. 24 is an explanatory diagram showing a second method of changing the scale and detail of the map according to the vehicle speed and displaying the map according to the present invention.

FIG. 25 is an explanatory diagram of a first example of a mechanism for adjusting the camera position.

FIG. 26 is an explanatory diagram of a second example of the mechanism for adjusting the camera position.

FIG. 27 is an explanatory diagram of a third example of the mechanism for adjusting the camera position.

FIG. 28 is an explanatory diagram of a third method of changing the scale and detail of the map according to the vehicle speed and displaying the map according to the present invention.

FIG. 29 is an explanatory diagram of a method for correcting and displaying the position of the own vehicle by voice input according to the present invention.

FIG. 30 is an explanatory diagram of a method for recognizing a voice-input identification name.

FIG. 31 is an explanatory diagram of a method for correcting the vehicle position.

[Explanation of symbols]

11 ... Own vehicle position information, 12 ... Designated feature point, 13 ... Diagram related to feature point, 14 ... Data about feature point, 15 ... Display data, 16 ... Display image, 101 ... Highway traveling determination, 102 ... Own vehicle position detecting means, 103 ... Feature point specifying means, 104 ... Stored information extracting means, 105 ... Display data calculating means, 106 ... Image creating means, 107 ... Display device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shin Shioya 1099, Ozenji, Aso-ku, Kawasaki-shi, Kanagawa Ltd. Hitachi, Ltd. System Development Laboratory

Claims (24)

[Claims] 1. A navigation system comprising a means for detecting the position of the own vehicle, a storage device for maps and related data, and a display device, and having an operation unit capable of specifying that a person is traveling on a highway. When a person operates the operation unit to specify that the vehicle is traveling on a highway, based on the vehicle position information obtained from the means for detecting the vehicle position, one of a plurality of characteristic points By designating any one or a part of the plurality of pieces of information on the designated feature points, or part of the information is taken out from the storage device and displayed on the display device in a peripheral view, a guide map, an overall view. A car navigation characterized by displaying a mark indicating the position of the vehicle, or data calculated based on the vehicle position information and the data retrieved from the storage device, or a part of the data. How to display the system. 2. The method of designating a feature point according to claim 1, wherein the feature point to be visited next is designated based on the vehicle position information. 3. The method of designating a certain feature point of a navigation system according to claim 1, wherein the navigation system has an operation unit capable of selecting one of the types of feature points among the operation units. Operate the operation unit, select the type of feature point,
A method of displaying a navigation system for a vehicle, which specifies a next feature point to be visited in this type based on the vehicle position information and the type of feature point selected by the human. 4. The method for designating the characteristic points of a navigation system according to claim 1, wherein said operating point has an operating section capable of selecting before and after said characteristic points. A method of displaying an automobile navigation system, wherein the number of movements of the feature points is counted based on an operation, and the current feature point is moved by the number of movements of the feature point to specify the feature point. 5. An operation unit A capable of selecting the type of the feature point according to claim 3 among the operation units according to claim 1, and before and after the feature point according to claim 4. A navigation system having an operation unit B capable of selecting a feature point and an operation unit C capable of canceling a selection state of a feature point before and after, and a method of designating the feature point according to claim 1. , A reset state between the time when a human operates the operation section C and the operation of the operation section B, and a reset time between the operation of the operation section B and the operation of the operation section C. If it is not in the state, the type of feature point selected by a human being operating the operation unit A is detected, and if the state is the reset state,
A method for displaying an automobile navigation system, wherein a feature point is designated by the method according to claim 2 or 3, and when the feature point is not in a reset state, the feature point is designated by the method according to claim 4. 6. The method for extracting any or a part of the information relating to a specified feature point from a storage device according to claim 1 is set by default for the specified feature point. Display method of a car navigation system that retrieves existing information. 7. The information processing apparatus according to claim 1, further comprising an operation unit capable of selecting one of the types of information on the feature points in the operation unit, and selecting one of the information on the specified feature points. Or
Alternatively, a method of extracting a part from the storage device is that a human operates the operation unit to select a type of information about the feature point, and based on the specified feature point and the type of information about the feature point. , A method of displaying a navigation system for an automobile, in which information on the specified feature points is retrieved from a storage device. 8. A method for calculating data to be displayed on the display device according to claim 1, wherein the position of the vehicle position information and the position of the feature point to be displayed in the data retrieved from the storage device, and A display method for an automobile navigation system for calculating a road to a feature point based on a straight-line approximated highway figure. 9. A method for calculating data to be displayed on the display device, which has a function of managing a past mileage internally in the navigation system according to claim 1, is extracted from the storage device. Based on the distance between the feature point to be displayed and the reference feature point in the data, and the mileage from the reference feature point calculated in the function for managing the past mileage A method of displaying a car navigation system that calculates the distance to a feature point. 10. The navigation system according to claim 1, wherein the navigation system internally has a clock function and a function of managing past mileage,
The method of calculating the data to be displayed on the display device is to set a time in a certain range, divide this range into time intervals of equal intervals, and based on the clock function, for each time width, the past travel distance. In the function to manage the, the data of the oldest mileage in terms of time and the data of the new mileage are replaced, the data is summed to calculate the past mileage, and the set time range, An average vehicle speed is calculated based on the past traveling distance, and an average time to reach the characteristic point is calculated based on the road to the characteristic point according to claim 8 and the average vehicle speed. A method of displaying a car navigation system for calculating. 11. The navigation system according to claim 1, wherein in the navigation system having a clock function and a function of managing a past vehicle speed, a method of calculating data to be displayed on the display device, Set a range of times, divide this range into evenly spaced time intervals,
Based on the clock function, in the function to manage the past vehicle speed for each time width, the oldest vehicle speed data and the new vehicle speed data are replaced in terms of time, and the managed vehicle speed data is replaced. The average vehicle speed is calculated on the basis of the number and the number thereof, and the average time to reach the characteristic point is calculated based on the road to the characteristic point according to claim 8 and 9 and the average vehicle speed. Display method for car navigation system. 12. The display method according to claim 1, wherein when the figure relating to the specified feature point extracted from the storage device according to claim 6 or 7 is a general view, the specified feature is displayed. With respect to the part corresponding to the characters in the overall map of the expressway including the points, the characters corresponding to the place names of the feature points are highlighted, and the mark of the vehicle position is based on the vehicle position information. A method of displaying a car navigation system at an appropriate position on a highway in the overall map. 13. The display method according to claim 1, wherein the specified feature is extracted when the drawing associated with the specified feature point retrieved from the storage device according to claim 6 is a peripheral view. Centered on the point, including some of the other feature points,
When the specified feature point is an expressway entrance / exit, a peripheral map including the general roads connected to this entrance / exit is displayed, and the own vehicle position mark according to claim 1 is added to the own vehicle position information. Based on the above, a method for displaying an automobile navigation system, which is marked at an appropriate position on a highway in the above peripheral map. 14. The display method according to claim 1 is drawn by the guide map data when a map related to a specified feature point retrieved from the storage device according to claim 6 or 7 is a guide map. A method of displaying a vehicle navigation system that displays road shapes of specified feature points and road signs that can be used according to data. 15. The display method according to claim 1 is a method for displaying the characteristic points according to claim 8 or 9 in addition to the display according to claim 12, claim 13 or claim 14. , Or an average time to reach the characteristic point according to any one of claims 10 and 11, or both of them, in addition to displaying with a numerical value or a graphic corresponding to the numerical value. Display method. 16. The navigation system according to claim 1, further comprising external information providing means or means for receiving information from the external communication means, wherein the external information providing means or external communication is provided. The traffic congestion information, the accident information, or the weather information by the means, that is, the information provided from the outside is received by the receiving means, and based on the information provided from the outside, the method according to claim 12 or 13. A method of displaying a car navigation system that displays traffic congestion, accidents, or bad weather on the display. 17. The automobile navigation system according to claim 1, wherein a peripheral map, a guide map, an overall view, or data regarding the feature points, that is, all of the information regarding the feature points is resident in a storage device. Display method. 18. A means for detecting the own vehicle position, a storage device for a map and related data, and a display device for detecting the vehicle speed, a means for displaying a map inside the system, and an inside of the system. In the navigation system having a means for photographing the map, the map data excluding the characters is retrieved from the storage device based on the vehicle position information obtained from the means for detecting the vehicle position, or the vehicle is Based on the position information, a map film or a map card is selected and displayed as a map inside the system, and based on the vehicle speed information obtained from the means for detecting the vehicle speed, the means for photographing the Determine the target magnification, adjust the magnification of the photographing means based on the target magnification, and
Select an optical filter that blocks a specific color, adjust the shooting position of the shooting means based on the vehicle position information, shoot the map displayed inside the system through the optical filter, Detecting the adjusted state quantity of the photographing means, taking out the necessary character data from the storage device based on this state quantity, synthesizing the photographed map and the character figure converted from the character data. , A method for displaying an automobile navigation system displayed on the display device. 19. The map color extracted from the storage device according to claim 18, wherein the color of the map extracted from the storage device is determined based on the vehicle speed information, and the range of the map extracted from the storage device is determined based on the own vehicle position information. And display it as a map inside the system, determine the target magnification for the photographing means based on the vehicle speed information, adjust the magnification of the photographing means based on the target magnification, and based on the vehicle position information. Then, the photographing position of the photographing means is adjusted, the map displayed inside the system is photographed, the state quantity of the adjusted photographing means is detected, and the necessary amount is stored in the storage device based on this state quantity. A method for displaying a navigation system of an automobile, in which character data is taken out, the photographed map and a character graphic converted from the character data are combined and displayed on the display device. 20. A method of displaying an automobile navigation system according to claim 18, wherein the vehicle speed is divided into several blocks and the target magnification is set based on the target speed set for each block and the vehicle speed information. 21. The vehicle speed information according to claim 18 or 19, when the vehicle speed information changes from a vehicle speed at the time when the target magnification was determined last time to a certain threshold value or more, the target magnification set to the vehicle speed is changed. Display method of car navigation system. 22. The magnification of the photographing means and the photographing position are detected in claim 18 or 19 to calculate the range in which the map inside the system is photographed, and based on the magnification of the photographing means, the name to be displayed is displayed. Determine the type or the type of name that is not displayed, and do not correspond to the character data that corresponds to the type of name that is displayed or the type of name that is not displayed, among the character data that exists in the above-mentioned captured range. A display method for a car navigation system for extracting character data from a storage device. 23. A navigation system having a vehicle position detecting means, a vehicle speed detecting means, a map and related data storage device, and a display device, wherein the vehicle speed is obtained from the vehicle speed detecting means. Based on the information, decide the color of the map to be retrieved from the storage device and the map scaling factor,
Own vehicle position information obtained from the means for detecting the own vehicle position,
The range of the map to be extracted from the storage device is determined based on the map enlargement / reduction ratio, the map data is extracted from the storage device, and the map data extracted from the storage device is enlarged / reduced based on the map enlargement / reduction ratio. Then, a display method for a car navigation system, characterized by displaying on the display device. 24. A navigation system having means for detecting the position of the own vehicle, a storage device for a map and related data, and a display device; means for inputting voice; and means for recognizing the input voice. In a navigation system having a means for correcting the vehicle position, a person inputs the identification name of a traveling point by voice using the means for inputting the voice, and the input voice is identified by extracting from the storage device. Correspondence on the map extracted from the storage device by recognizing using the name table and correcting the own vehicle position information obtained from the means for detecting the own vehicle position to the position corresponding to the recognized identification name. A method for displaying an automobile navigation system, characterized in that a vehicle position mark is displayed at a specified position.