JPH06341846A - Information guidance apparatus - Google Patents

Abstract

PURPOSE:To provide an information guidance apparatus where a position which has been registered in advance can be told for a person to understand much more easily. CONSTITUTION:In a course guidance processing operation, a running operation is guided by displaying a present position and a road map. When an existing road map displayed on a display screen 8 is renewed in a running guidance processing operation executed as a timer interrupt processing operation at every prescribed cycle, a registration mark is displayed in a registration position on the road map 8a when the registration position of a mark exists inside the region of a renewed road map, the guidance of the registration position is performed visually (Steps S 30 to S 34), in addition, a sound corresponding to the registration mark in the registration position is output when the registration position enters a prescribed region from a present position, and the guidance of the registration position is performed by the sound (Steps S36, S38). By the guidance of the sound, the existence of a prescribed position expressed by the mark can be recognized surely, and a distance from the present position can be known surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information guide device for providing information on a predetermined position, the display device having a display device for displaying a mark representing the characteristics of the predetermined position on the road map.

[0002]

2. Description of the Related Art Conventionally, in this type of information guidance device, in order to guide the movement of a moving body such as a vehicle, a road map and a current position on the map are displayed on a display unit, and further, a desired map is displayed in advance. A position, for example, the position of a home or a destination can be registered together with a predetermined character, and when a road map including the registered position is displayed on the display unit, the predetermined character is displayed at the registered position on the road map. , The locations of homes and destinations registered in advance were made clear on the road map.

[0003]

In such a conventional information guiding apparatus, the character is displayed at the position of the home or the destination registered in advance on the road map of the display unit so that the character of the home registered in advance can be displayed. Since the position of the destination was merely guided, various problems as described below occurred especially during the movement of the moving body equipped with the device. 1) The presence of the character on the road map cannot be recognized unless the display unit is stared at, and it is particularly difficult for a person driving the mobile unit to stare at the display unit in such a way as to prevent the movement of the mobile unit. There is a risk that 2) Even if the character on the road map is recognized,
When there are many types of characters that can be registered and the meaning of the characters displayed on the road map is forgotten, displaying the characters does not help at all. 3) In the conventional device, the distance between the character displayed on the road map and the current position must be determined based on the scale of the road map, but the road map is used to make such determination. Gaze may hinder the movement of the moving body similarly to the above 1). 4) Since the character displayed on the display unit has its own size, even if the character is displayed on the road map, one point on the road map cannot be specified. Therefore, on the road map represented by the character. It is often difficult to accurately guide the position of the.

Therefore, the present invention has been made for the purpose of solving the above-mentioned various problems and providing an information guide device capable of guiding a preregistered position in a more understandable manner.

[0005]

The constitution of the present invention is, as illustrated in FIG. 1, a display means capable of displaying a road map and various marks representing respective characteristics of various positions on the road map. A voice output unit capable of outputting various voices for guiding the various positions; various image data for displaying the various marks on the display unit; various type data representing a type of the various image data; Mark storage means for storing various audio data corresponding to each of the various types of data for outputting the audio to the audio output means, and a mark for inputting a mark display instruction for displaying the mark on the display means Display instruction input means, and mark change instruction input means capable of inputting a mark change instruction for displaying another mark instead of the mark currently displayed on the display means, By controlling the display of the display means based on the image data, the mark is displayed on the display means when the mark display instruction is input, and the mark is currently displayed on the display means when the mark change instruction is input. Mark display control means for displaying another mark instead of the displayed mark, and position data input means capable of inputting position data of the position where the mark represents the feature,
Registration instruction input means capable of inputting a registration instruction for registering the mark currently displayed on the display means; and, when the registration instruction is input, the mark displayed on the display means at the time of the input Mark registration means for storing corresponding type data and position data input from the position data input means as registration type data and registered position data, respectively, and a map for displaying the road map on the display means. Map data storage means for storing data, current position signal output means for outputting a current position signal for indicating the current position, and current position by controlling the display of the display means based on the current position signal and the map data. And displaying the current road map, the current road map displayed by the display means based on the map data and the registered position data. It is determined whether or not the position corresponding to the registered position data is included in the range, and if it is determined that the position is included, the display of the display means is performed based on the image data, the registered position data, and the map data. Based on the current position signal and the registered position data, map display control means for displaying the mark at a position corresponding to the position data on the current road map The display means judges whether or not the position of the mark displayed on the current road map is within a predetermined range from the current position, and when it is judged that the mark is present, it corresponds to the mark indicating the position which is judged to have been entered. Voice output control means for causing the voice output means to output a predetermined voice based on the registration type data and the voice data corresponding to the registration type data. And it said that there were pictures.

[0006]

According to the present invention, when a mark display instruction is inputted from the mark display instruction input means, the mark display control means displays any mark on the display means based on the image data stored in the mark storage means. Let When a mark change instruction is input from the mark change instruction input means in a state where any of the marks is displayed on the display means, the mark display control means changes the mark to be displayed on the display means each time the mark change instruction is input. Change to another mark.

Position data of a predetermined position represented by a mark is input from the position data input means. When a mark registration instruction is input from the mark registration instruction inputting means in a state where any mark is displayed on the display means, the mark registration means causes the mark registration means to display the mark being displayed on the display means when the mark registration instruction is input. The type data indicating the type is stored as registered type data, and the position data input from the position data input means is stored as registered position data.

On the other hand, the map display control means controls the display means based on the map data stored in the map data storage means and the current position signal output by the current position signal output means, and the current road including the current position. Display a map, and
Based on the map data and the registered position data, it is judged whether or not the position corresponding to the position data is included in the range of the current road map displayed by the display means. The display of the display means is controlled based on the data, the registered position data and the map data, and the mark is displayed at the position on the current road map which is judged to be included.

Further, the voice output control means determines whether or not the position of the mark displayed on the current road map by the display means is within a predetermined range based on the current position signal and the registered position data. to decide. Then, when the voice output control means determines that the predetermined position represented by the mark being displayed is within the predetermined range from the current position, it corresponds to the registration type data and the registration type data corresponding to the mark indicating the position determined to have entered. Based on the voice data, the voice output means outputs a predetermined voice.

According to the present invention as described above, since the mark display instruction input means, the mark change instruction input means, the position data input means, the registration instruction input means, the mark registration means and the like are provided, a desired mark is set to the mark. It can be registered in advance together with the position data of the position to be guided. Further, if map display control means is provided and the position represented by the registered mark is included within the range of the current road map including the current position displayed by the display means, the mark is displayed at that position on the current road map. In order to display, the desired position on the current road map displayed by the display means can be visually recognized by various marks, which can be useful for guiding the desired position.

According to the present invention, a voice output control means is provided, and when the position indicated by the mark displayed on the current road map by the display means falls within a predetermined range from the current position, a predetermined mark corresponding to each mark is given. Since the voice is output from the voice output means to guide the position represented by the mark being displayed, the presence of the predetermined position represented by the mark is surely recognized by the guide of the predetermined voice, and the mark is displayed from the current position. The distance to the position represented by can be accurately known. Therefore, by accurately recognizing the distance from the current position to the position represented by the mark, it is possible to easily deal with the approach of the position represented by the mark.

In addition, according to the present invention, the visual guidance for displaying the mark on the current road map by the display means is provided and the predetermined voice corresponding to various marks is provided. It is safe because it does not interfere with the visual attention required for the safe movement of the mobile body equipped with such an information guide device.

[0013]

Embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described in detail below, and includes all embodiments that can be conceived by those skilled in the art without departing from the gist of the present invention.

FIG. 2 shows that, by applying one embodiment of the present invention, the registered position is shown in advance at a position registered in advance on the current road map including the current position (hereinafter, simply referred to as “registered position”). By displaying a registered mark (hereinafter simply referred to as "registration mark") and providing a voice guidance corresponding to the registered mark when the registered position falls within a predetermined range from the current position, FIG. 2 is a block diagram showing an overall configuration of a navigation device 1 that is separately provided and retrofitted to a vehicle mounted for convenience of traveling.

As shown in FIG. 2, the navigation device 1
Is equipped with a GPS antenna 2a for receiving radio waves transmitted from a satellite (NAVSTAR) for GPS (Global Positioning System), frequency-converts and demodulates the received signal, and latitude data and longitude indicating the position of the receiving point. A well-known GPS receiver 2 for calculating data and altitude data, as well as speed data indicating a moving speed of a receiving point and direction data indicating a moving direction, a keyboard for inputting various instructions by an external operation, and Input device 4 including touch keys and the like provided on display screen 8a of display device 8
And an external storage device 6 composed of an optical disk, a magnetic disk, etc. storing map data, a road map, various marks,
And a display device 8 including a CRT for displaying various messages, a liquid crystal display, etc., a speaker 9 for providing guidance of an intersection passed while traveling, approaching a predetermined point, etc. by voice, and GPS reception It comprises a machine 2, an input device 4, various kinds of data from the external storage device 6 and the like, and a control device 10 for driving and controlling the display device 8 and the speaker 9 based on the data. Here, the GPS receiver 2 functions as a current position signal output means, and the external storage device 6 functions as a map data storage means.

Further, the control device 10 includes a CPU 12, R
The OM 14, the RAM 16, the input / output port 18, the bus line 20 connecting these parts, the display drive circuit 22 for controlling the display by the display device 8 based on the output signal from the input / output port 18, and the input / output port 18. It is configured as a well-known microcomputer provided with a speaker drive circuit 24 for controlling the audio output by the speaker 9 based on the output signal. Here, the display drive circuit 2
2 functions as a display unit together with the display device 8, and the speaker drive circuit 24 functions as an audio output unit together with the speaker 9.

The RAM 16 has a storage area as a backup RAM backed up by a storage battery, and the data stored in the storage area is not lost even when the power of the navigation device 1 is turned off. There is. As will be described later, this backup RAM stores registration mark numbers and position data of registration positions, and functions as mark registration means.

The ROM 14 represents various kinds of image data for displaying various marks such as "M1. Be careful of safety" and "M7. Flowers / plants" on the display device 8 as shown in FIG. The mark numbers M1 to M8 and various voice data for causing the speaker 9 to output voices corresponding to various marks are stored in association with each other, and function as mark storage means.

The input device 4 includes a scroll key 4
a, wide area / detail key 4b, OK key 4c, change key 4
Keys having various functions such as d and NO keys 4e are provided. The scroll key 4a scrolls the road map displayed on the display screen 8a in four directions of up, down, left and right in order to move the cursor 8b located at the center of the display screen 8a as shown in FIG. 5 to a desired position on the road map. It has a function to make it.

The wide area / detail key 4b has a function of switching roads displayed on the display screen 8a to display a wide area map having a smaller scale or a detailed map having a larger scale on the display screen 8a. When the OK key 4c is operated when only the road map is displayed on the display screen 8a, a mark for displaying any of various marks as shown in FIG. 4 at the position of the cursor 8b on the display screen 8a. The cursor 8b functions as a mark display instruction input means capable of inputting a display instruction, and is operated when any mark is displayed at the position of the cursor 8b on the display screen 8a displaying the road map. The registration instruction input means functioning as position data input means capable of inputting position data (that is, latitude and longitude data) of the central position on the road map shown by, and at the same time capable of inputting a registration instruction for registering the mark being displayed. If the operation is performed while a message such as "Do you want to register more marks?" Is displayed on the display screen 8a, the displayed message is displayed. And a function of being able to input an instruction for responding to messages.

When the change key 4d is operated when various marks as shown in FIG. 4 are displayed at the position of the cursor 8b on the display screen 8a, other marks are displayed instead of the displayed mark. It functions as a mark change instruction input means capable of inputting a mark change instruction for causing the change.

Further, the NO key 4e has a function of being able to input an instruction for responding to a message displayed on the display screen 8a, similarly to a part of the function of the OK key 4c described above. In the navigation device 1 thus configured, when the power is turned on, the display screen 8 is displayed based on the data read from the ROM 14 by the CPU 12.
A menu screen for selecting various processing including mark registration processing, route guidance processing, course setting processing, map search processing, etc. is displayed on a, and any of the above processing is selected by operating the input device 4. Then, the selected process is executed.

When the mark registration process is selected, the CP
The processing executed in U12 will be described with reference to FIG.
To explain the outline of this processing, first, a road map centering on a desired position for registering a mark is displayed on the display screen 8a.
The scroll key 4a or the wide area / details key 4b is operated until is displayed on the screen, and the road map displayed on the display screen 8a is scrolled or switched according to the key operation (steps S2 and S4). With the road map centered on the desired position displayed on the display screen 8a, OK
When the key 4c is operated, at the center position of the display screen 8a, that is, at the position of the cursor 8b indicated by the "+" mark in FIG. 5, any of various marks shown in FIG. 4 is displayed on the road map being displayed. It is displayed in an overlapping manner (steps S6 and S8). Display screen 8
If the mark displayed on a is not the desired mark, the change key 4d is operated, and another mark is displayed on the display screen 8a according to the operation (steps S10 and S1).
2). When the OK key 4c is operated while the desired mark is displayed on the display screen 8a, the mark number of the mark being displayed on the display screen 8a and the position data of the center position of the display screen 8a are stored in the backup RAM. The mark is thereby registered (steps S14 and S16). Then, on the display screen 8a, a message "Do you want to register more marks?" Is displayed instead of the marks that have been displayed so far (step S18), and OK in that state.
When the re-registration operation is performed with the key 4c, the step S is performed again.
Returning to step 2, this processing is repeated (step S20; affirmative), and when the end operation is performed with the NO key 4e instead of the OK key 4c, this processing ends (step S22;
positive).

In the mark registration process outlined above, the mark number and position data are stored in the backup RAM in response to a predetermined key operation, so that the desired mark is registered together with the position for guiding the mark. To do. Further, the mark registration process will be described in detail with reference to FIG.

First, in step S2, the external storage device 6
The display drive circuit 22 is driven based on the map data read from the display device 8 to display a road map on the display screen 8a of the display device 8. Succeedingly, in a step S4, it is determined whether or not the scroll key 4a or the wide area / detail key 4b is operated. If any of the keys is operated, the affirmative decision is made in step S4, the process returns to step S2, and the road map corresponding to the operated key is displayed on the display screen 8a. That is, when the scroll key 4a is operated based on the map data read from the external storage device 6, the road map is scrolled to display the road map including a new area on the display screen 8a, and the wide area / detail key is displayed. When 4b is operated, the scale of the road map being displayed on the display screen 8a is switched to display a wider or more detailed road map.

If it is determined in step S4 that neither the scroll key 4a nor the wide area / details key 4b has been operated, the process proceeds to step S6 and it is determined whether or not the OK key 4c has been operated. If the OK key 4c is not operated, step S
If the answer is NO in step 6, the process returns to step S2. When the OK key 4c is operated, an affirmative answer is obtained in step S6 and the process proceeds to step S8, in which the turtle mark with the mark number M1 shown on the uppermost left side of FIG. 4 is read from the ROM 14 at the cursor position on the display screen 8a. The display drive circuit 22 is operated based on the data, and is displayed on the road map being displayed.

Then, in step S10, the change key 4d
It is determined whether or not is operated. When the change key 4d is operated, the affirmative decision is made in step S10 and the operation proceeds to step S12, where the mark number M in the next order is replaced with the turtle mark currently displayed.
2 Fishing mark (second from the top on the left side of Figure 4)
Is displayed by operating the display drive circuit 22 based on the image data read from the ROM 14,
Returning to step S10, the above processing is repeated. In this way, every time the change key 4d is operated, steps S10 and S
The process of 12 is repeated, and the marks displayed on the display screen 8a are sequentially updated according to the arrow shown in FIG. In the processing of steps S6 to S12 as described above, C
The PU 12 functions as a mark display control means.

On the other hand, if it is determined in step S10 that the change key 4d is not operated, the process proceeds to step S14 and it is determined whether or not the OK key 4c is operated. OK
If the key 4c has not been operated, the result in step S14 is negative and the process returns to step S10 to repeat the above process.

When the OK key 4c is operated in a state where any mark is displayed on the road map on the display screen 8a, the affirmative determination is made in step S14 and the process proceeds to step S16.
Data representing the mark number of the mark being displayed on the display screen 8a is stored in the backup RAM on the basis of the data read from the ROM 14, and further the cursor on the display screen 8a is stored on the basis of the map data read from the external storage device 6. The position data of the position indicated by the position on the road map is stored in the backup RAM.

After step S16, the process proceeds to step S18, the display drive circuit 22 is operated, and the message "Do you want to register more marks?" Is displayed instead of the mark displayed on the display screen 8a. To do. After the process of step S18, the process proceeds to step S20, and it is determined whether or not the re-registration operation is performed with the OK key 4c.
When the OK key 4c is operated, it is determined that the re-registration operation is performed in step S20, the process returns to step S2, and the above-described processing is repeated again.

When it is determined in step S20 that the OK key 4c has not been operated, the process proceeds to step S22, and it is determined whether or not the end operation has been performed with the NO key 4e. NO
If the key 4e is not operated, it is determined in step S22 that the ending operation has not been performed, the process returns to step S20 and the above determination is repeated again. When the NO key 4e is operated while the above message is displayed, the mark registration process is ended.

In addition, in steps S2 to S8 of the mark registration processing which is executed again after the mark registration processing is executed once and any of the marks is registered, the already registered registration marks are registered positions on the road map. Is displayed in. Also,
In such a mark registration process again, steps S2 to S
When the OK key 4c is operated in a state where the processing of step 12 is executed and the cancellation mark of the mark number M8 shown on the uppermost right side of FIG. 4 is displayed in the center of the display screen 8a (step S
14; affirmative), instead of storing the mark number M8 of the cancellation mark and the position data, the mark number of the registration mark and the position data of the registered position which have already been registered before are erased from the backup RAM, and the mark registration is completed. Cancellation is executed.

That is, in the mark registration process again, steps S2 and S4 are executed, and the already registered registration mark is positioned in the center of the display screen 8a.
In response to the repeated operation of the change key 4d after the operation of, the cancel mark of the mark number M8 is displayed overlaid on the registered mark displayed in the center of the display screen 8a.
When the key 4c is operated, in step S16, to which the operation proceeds after making an affirmative decision in step S14, before the cancellation mark is displayed on the display screen 8a, instead of storing the cancellation mark number M8 and the position data thereof, step S2, In S4, the mark number and the position data of the already registered registration mark displayed at the center position of the display screen 8a are erased from the backup RAM.

Next, the travel guidance process executed by the CPU 12 using the registration mark and the registration position registered by the execution of the mark registration process will be described with reference to FIG. When the route guidance process is selected on the menu screen described above, this travel guidance process is executed as a timer interrupt process for each predetermined cycle, and a registration mark is displayed at the registration position on the road map displayed on the display screen 8a. This is a process for guiding the registered position by displaying it, and also for guiding by voice when the registered position falls within a predetermined range from the current position.

First, an outline of route guidance processing which is a premise of the travel guidance processing will be described. In the route guidance process, the current position (that is, reception point) data read from the GPS receiver 2,
Also, based on the map data read from the external storage device 6, the display drive circuit 22 is operated, and the road map within a predetermined range centered on the current position (that is, the size of the screen of the display screen 8a centered on the current position is set. A road map of the range; hereinafter referred to as a current road map) is displayed on the display screen 8a together with a mark indicating the current position, and the current position on the road map is clearly indicated by the mark of the vehicle equipped with the device 1. We provide driving guidance.

In such route guidance processing, if there is a change in the current position due to the running of the vehicle, etc., based on the current position data read from the GPS receiver 2 and the map data read from the external storage device 6, By operating the display drive circuit 22, the area of the current road map displayed on the display screen 8a and the position of the mark indicating the current position are changed.

In the driving guidance process, as shown in FIG. 6, when the current road map displayed on the display screen 8a is updated in steps S30 to S34, if the registered position exists in the updated road map area, the display is made. The registration mark is displayed at the registration position on the road map displayed on the screen 8a, thereby visually guiding the registration position. The display screen 8 is displayed in the processing of steps S30 to S34 and the route guidance processing.
By the process of displaying the current road map in a, the CPU
12 functions as a map display control means.

Furthermore, in steps S36 and S38, when the registered position is within a predetermined range from the current position, a voice corresponding to the registration mark at the registered position is output to guide the registered position by voice. The CPU 12 functions as a voice output control means. Hereinafter, the travel guidance process will be described in detail with reference to FIG.

First, in step S30, the display screen 8 is displayed due to the change of the current position due to the traveling of the vehicle or the scale of the current road map changed according to the operation of the wide area / detail key 4b.
Regarding whether or not the current road map displayed in a has been updated,
The determination is made based on the current position data from the GPS receiver 2 and the presence / absence of key operation thereof. When the result in step S30 is affirmative, the process proceeds to step S32. Even when the current road map is displayed on the display screen 8a in the initial state where the route guidance process is selected, the affirmative determination is made in step S30 and the process proceeds to step S32. If the result in step S30 is negative, the process immediately proceeds to step S36 described below.

In step S32, it is determined whether or not the registered position is within the area of the current road map displayed on the display screen 8a based on the map data and the position data of the registered position stored in the backup RAM. . Step S3
If the result in step 2 is affirmative, the process proceeds to step S34 and the backup R
RO based on the mark number of the registration mark stored in AM
The image data of the registration mark is read from M14, the display drive circuit 22 is operated, and based on the position data of the registration position and the map data, for example, the position is registered at the position corresponding to the registration position on the current road map as shown in FIG. Display the mark. The triangle mark 30 drawn in the center of the display screen 8a in FIG. 7 indicates the current position and the traveling direction.

After step S34, after denying in step S32 and after denying in step S30, the process proceeds to step S36, and within a predetermined range (for example, from the current position) based on the current position data and the position data of the registered position. Thirty
It is determined whether the registered position is within the range of 0 m).
If affirmative in step S36, the process proceeds to step S38.
In step S38, the voice data corresponding to the registration mark at the registration position within the range of 300 m from the current position is
The speaker 9 is read from the ROM 14 based on the mark number of the registration mark, the speaker drive circuit 24 is operated, and the speaker 9
To output the sound corresponding to the registration mark. If the registration mark at the registration position within 300 m from the current position is, for example, the turtle mark with mark number M1, "Pawn"
After the chime, the voice guidance "Be careful about safe driving" is given. Also, for example, when the fish fishing mark has the mark number M2, the voice guidance "It will be a fishing pond soon" is given after the similar chime.

After step S38, and step S36
After denying in, this processing is ended. When the road map displayed on the display screen 8a is updated (step S30) by executing the above-described travel guidance process, it is determined whether or not the registered position is included in the area of the road map ( Step S32), if included, display screen 8a
Since the mark registered in advance is displayed at the registered position on the road map being displayed at (step S34), even if the road map displayed on the display screen 8a changes, the registered mark will guide the registered position. Can be done visually.

Further, in the driving guidance process, regardless of whether the road map displayed on the display screen 8a is updated or not, if the registered position is within the range of 300 m from the current position (step S36; Yes), various Voice guidance is provided according to each registration mark (step S3).
8) Therefore, according to the present device 1, it is possible to reliably recognize the existence of the registration position represented by the registration mark by the voice corresponding to the registration mark, and to accurately know the distance from the current position to the registration position. it can. Then, based on the accurate grasp of the distance by the voice, the driver of the vehicle in which the present device 1 is mounted can promptly and accurately take appropriate measures. In addition, such voice guidance is extremely safe without disturbing the visual attention of the driver necessary for safe traveling of the vehicle equipped with the device 1.

In the present apparatus 1, the image data of the various marks shown in FIG. 4, the mark numbers, and the data relating to the marks such as the corresponding audio data are stored in the ROM 14 in advance. By storing data regarding marks in an easily exchangeable storage medium such as an IC card and exchanging a plurality of IC cards having different types of stored marks, various marks can be registered. You can also When the IC card is used as described above, the backup RA
The mark number of the registration mark and the position data of the registration position stored in M may be stored in the IC card instead of the backup RAM. Although various marks M8 to M8 shown in FIG. 4 are used in this embodiment, the number of these marks is not limited to eight, and may be eight or more or less.

Further, in the present device 1, the registered position is 3 from the current position in steps S36 and S38 of the travel guidance process.
The predetermined voice guidance was given only once when entering the range of 00m, but the voice guidance is not limited to once, and for example, when entering the range of 300m from the current position, guidance is given with a small sound, and 200m When you enter the range, you will be guided with a medium sound, and when you enter the range of 100 m, you will be guided with a large sound, and the guide will be given multiple times to inform you of the distance from the current location in more detail. May be encouraged.

In addition, the travel guidance processing of the present apparatus 1 can be applied regardless of the method of changing the road map displayed on the display screen 8a according to the change of the current position. That is, the device 1 is, for example,
Even if the current position is always displayed in the center of the display screen 8a even when the vehicle is traveling and the area of the road map displayed on the display screen 8a changes as the vehicle travels (smooth scrolling) It is possible, and for example, the current position moves within the area of the road map being displayed on the display screen 8a as the vehicle travels, and the current position protrudes from the edge of the display screen 8a to the outside on the display screen 8a. When it becomes impossible to display, it is applicable even when updating the road map displayed on the display screen 8a (skip scroll).

[Brief description of drawings]

FIG. 1 is a block diagram illustrating the configuration of the invention according to claim 1.

FIG. 2 is a block diagram showing a configuration of a navigation device 1.

FIG. 3 is a flowchart showing mark registration processing.

FIG. 4 is an explanatory diagram continuously showing how various marks are updated on the display screen 8a.

FIG. 5 is an explanatory diagram showing a state of a road map and a cursor displayed on a display screen 8a.

FIG. 6 is a flowchart showing a travel guidance process.

FIG. 7 is an explanatory diagram showing a state where a registration mark is displayed on the road map on the display screen 8a.

[Explanation of symbols]

2 ... GPS receiver, 4 ... Input device, 4
a ... scroll key, 4b ... wide area / detail key, 4c ...
OK key, 4d ... Change key, 4e ... NO key,
6 ... External storage device, 8 ... Display device, 9 ...
Speaker, 10 ... Control device, 12 ...
CPU, 14 ... ROM, 16 ... RAM,
22 ... Display drive circuit, 24 ... Speaker drive circuit,

Claims (1)

[Claims] 1. A display unit capable of displaying a road map and various marks representing respective characteristics of various positions on the road map, and a voice output capable of outputting various voices for guiding the various positions. Means, various image data for displaying the various marks on the display means, various type data indicating the type of the various image data, and each of the various type data for causing the audio output means to output the voice. Mark storage means for storing various corresponding audio data, mark display instruction input means capable of inputting a mark display instruction for displaying the mark on the display means, and a substitute for the mark currently displayed on the display means Mark change instruction input means capable of inputting a mark change instruction for displaying another mark on the display, and controlling the display of the display means based on the image data. Thus, when the mark display instruction is input, the display unit displays the mark, and when the mark change instruction is input, the display unit displays another mark instead of the currently displayed mark. Mark display control means, position data input means capable of inputting position data of the position where the mark represents the feature, registration capable of inputting a registration instruction for registering the mark currently displayed on the display means When inputting the registration instruction and the registration instruction, the type data corresponding to the mark being displayed on the display unit at the time of input and the position data input from the position data input unit are input,
Mark registration means for storing registration type data and registration position data, map data storage means for storing map data for displaying the road map on the display means, and a current position signal for indicating the current position And a current position signal output means for outputting the current position signal and the map data to control the display of the display means to display a current road map including the current position, and to display the map data and the registered position data. On the basis of the above, it is determined whether or not the position corresponding to the registered position data is included in the range of the current road map displayed by the display means, and if it is determined that the position is included, the image data, the registration The display of the display means is controlled based on the position data and the map data, and the position data on the current road map determined to be included is displayed. A map display control means for displaying the mark at a position corresponding to the data, based on said current position signal and the registered position data,
It is determined whether the position of the mark displayed on the current road map by the display means is within a predetermined range from the current position, and when it is determined that the mark is displayed, the mark indicating the position determined to be entered is displayed. An information guide device comprising: a voice output control unit that causes the voice output unit to output a predetermined voice based on the corresponding registration type data and the voice data corresponding to the registration type data.