JPH05232869A - Navigation device - Google Patents

Abstract

PURPOSE:To provide a navigation system which surely confirm and recognize a destination without giving a user a feeling of uneasiness. CONSTITUTION:This navigation device equipped with a position measuring means which measures the position of the data and outputs self-position data, a 1st storage means stored with map data, a display means which displays various information, a display control means which makes a map display MP1 on a display means according to map data and also displays the position of the device on the map display MP1 according to the self-position data is equipped with a setting means which sets destination place name data, a 2nd storage means stored with the set destination place name data, and a destination name display control means which displays a destination name ONM on the map display MP1 according to the destination name data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for a mobile body, and more particularly to display processing of a vehicle-mounted navigation device.

[0002]

2. Description of the Related Art Conventionally, there is a so-called self-contained navigation device as a positioning device for various moving bodies such as automobiles, aircrafts and ships. This self-contained navigation device obtains a two-dimensional displacement (vector amount) of the moving body from the azimuth data from the azimuth sensor and the speed data from the speed sensor, integrates the two-dimensional displacement at the reference point, It seeks the current position. For example, in the case of an automobile, the current position (data) is obtained by integrating the accumulated traveling distance and the accumulated azimuth obtained from the traveling distance sensor and the azimuth sensor at the reference point. More specifically, for example, the rotation speed of the drive shaft and the number of pulses generated by the rotation speed sensor attached to the drive shaft are preliminarily associated with each other, and from the total number of pulses generated from the reference point to the current position, The calculated traveling distance is calculated by multiplying the calculated distance by the distance correction count, and the integrated azimuth is obtained by accumulating the azimuths obtained by the geomagnetic sensor.

A GPS (Global Positioning System) navigation device has been developed as a positioning device using artificial satellites. This GPS navigation device normally receives radio waves from three or more GPS satellites and
The present position (data) of the receiving point is obtained from the pseudo range data including the time offset of the receiver between the PS satellite and the receiving point (self position) and the position data of each GPS satellite.

As a mode of using these positioning devices as an actual navigation system, the latitude of the current position,
CRT (Cathode Ra
There is an advanced one that displays various data such as self-position, distance to the destination, and moving speed on the map screen displayed on the y tube) screen.

A navigation system displaying various kinds of data on a CRT screen reads map data including the calculated current position from a storage medium such as a CD-ROM and screen data from the read map data and the calculated current position data. Is created and output to a CRT for image display. From this display image, the user can grasp his / her current position in association with the map.

FIG. 12 shows an example of a conventional display screen for navigation. The map screen MP is displayed on the display screen, and the position (indicated by “●” in the figure) and name (indicated by ABC and DEF in the figure) of the building or the like serving as a mark in the map screen MP. Etc. are displayed. On the upper left side of the map screen MP, the distance scale DS of the map screen is displayed.
At the center of the screen, the current position (triangle mark) P of the self and the distance scale DSC from the current position of the self are displayed. Furthermore, if the coordinates of the destination (for example, latitude and longitude) are input in advance, the azimuth (indicated by an arrow in the figure) X from the current position and the linear distance LD from the current position are displayed as the destination information. To be done.

[0007]

In the above conventional navigation system, since the destination information displayed on the CRT is only the azimuth and the straight line distance from the current position (vehicle position) to the destination, When a point (hereinafter referred to as a route point) that passes through to reach the final destination is set as the intermediate destination instead of the final destination, the user can determine which intermediate destination was the intermediate destination. There is a problem in that the user sometimes forgets and makes the user feel uneasy about where he is traveling.

[0008] Therefore, an object of the present invention is to provide a navigation device capable of surely confirming and recognizing a destination without making the user feel uneasy.

[0009]

In order to solve the above problems, the present invention provides a positioning means for positioning the self position and outputting self position data, a first storage means for storing map data, and displaying various information. And a display control means for displaying a map on the display means based on the map data and displaying a self-position based on the self-position data on the map display. A setting means for setting data, a second storage means for storing the set destination name data, and a destination name display control means for displaying a destination name on the map display based on the destination name data. Constitute.

[0010]

According to the present invention, when the user sets the destination name data by the setting means such as the keyboard or the remote control device, the navigation device stores the set destination name data in the second storage means such as RAM. .. As a result, the destination name display control means displays the destination name on the map display based on the destination name data.

As described above, since the destination name is displayed on the map displayed on the screen of the display means such as a display, the destination can be easily confirmed and recognized.

[0012]

EXAMPLES Next, examples of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a basic configuration when the present invention is applied to a vehicle-mounted navigation system.

The on-vehicle navigation system 100 is
Geomagnetic sensor 1 that outputs direction data in the traveling direction of the vehicle
, An angular velocity sensor 2 that detects the angular velocity when the vehicle is rotating and outputs angular velocity data, a mileage sensor 3 that outputs mileage data by detecting and integrating the number of rotations of the shaft, and a radio wave from a GPS satellite. To input various data, a GPS receiver 4 for receiving and outputting GPS positioning data, a system controller 5 for controlling the entire navigation system based on azimuth data, angular velocity data, mileage data and GPS positioning data. CD under the control of the input device 11 and the system controller 5 of
A CD-ROM drive 12 for reading and outputting various data from the ROM disk DK, and a display unit 1 for displaying various display data under the control of the system controller 5.
3 is provided.

Here, the geomagnetic sensor 1, the angular velocity sensor 2, the mileage sensor 3 and the GPS receiver 4 function as measuring means, and the CD-ROM disks DK and CD.
The ROM drive functions as the first storage means, the input device 11 functions as the setting means, and the display unit 13 functions as the display means.

The system controller 5 includes an interface unit 6 for interfacing with the outside, a CPU 7 for controlling the entire system controller 5, a ROM (Read Only Memory) 8 storing a control program for controlling the system controller, R having a non-volatile memory unit (not shown) and writably storing various data
An AM (Random Access Memory) 9 is provided, and the input device 11, the CD-ROM drive 12, and the display unit 13 are connected via a bus line 10. Here, the system controller 5 functions as a destination name display control unit and a display control unit, and the RAM 9 is a second display unit.
It functions as a storage means.

The display unit 13 controls the entire display unit based on the control data sent from the CPU 7 via the bus line 10.
4, a buffer memory 15 including a memory such as VRAM (Video RAM) for temporarily storing image information that can be immediately displayed, and a display such as a liquid crystal display device or a CRT based on the image data output from the graphic controller 14. And a display control unit 16 that controls the display of the display unit 17.

Next, the operation of this embodiment will be described with reference to FIGS. FIG. 2 shows a processing flowchart showing the outline operation of the present embodiment. First, the system controller 5 calculates the vehicle position based on the azimuth data, angular velocity data, mileage data, and GPS positioning data (step S1). Next, the vehicle position is set as the display position (step S2), and the map data around the display position is set to the bus line 10
And a CD-ROM via the CD-ROM drive 12
The buffer memory 15 is read from the disk DK. At the same time, the graphic controller 14 draws a map around the display position on the display screen of the display 17 based on the control data from the CPU 7 (step S4).
Further, the graphic controller 14 overwrites the cursor, the vehicle position mark, etc. on the map screen based on various data from the system controller 5 (step S
5). Subsequently, the system controller 5 determines whether or not there is a preset destination (step S
6) If there is no destination, the drawing process ends.
When there is a destination set in advance, the place name of the destination and the straight line distance to the destination are further overwritten on the screen (step S7), and the drawing process ends.

The destination setting operation will now be described with reference to FIGS. 3 to 10. First, referring to FIG.
The configuration of the input device (commander) 11 used as the setting means for setting the destination will be described.

The commander 11 has four direction keys D _{1 to} D for selecting characters and items to be input.
₄ and a list key K that displays a list of destination names that are registered in the navigation system in advance
_1, the destination key K ₂ for registering a destination name, a cancel key K ₃ for canceling a character or item selected using the direction keys D ₁ to D _4, the direction key D ₁ to D ₄ An execution key K ₄ for confirming the selected character or item is provided.

FIG. 3 shows an outline processing flowchart of the destination setting processing. The system controller 5 is the input device 1
When there is a key input of 1, the input key content is acquired (step S10), and the input key is the list key K ₁
It is determined whether or not (step S11). If the input key is not the list key K ₁ , the destination setting process is terminated and other processes are performed.

When the input key is the list key K ₁ , first, the list input processing routine (step S2)
0), and when performing the list input processing S20,
After the processing of the list input processing S20 is completed, the distance and direction to the destination are calculated (step S12), and the destination information of the destination selected from the list is displayed on the display screen of the display 17 (step S13). ) End the destination setting process and perform other processes.

If the list input process S20 is not performed, the process proceeds to the simple destination name input process (step S30). If the simple destination name input process is performed as in the list input process S20, the distance to the destination is reached. Then, the direction is calculated (step S12), the destination information including the simple destination name is displayed on the display screen of the display 17 (step S13), the destination setting process is terminated, and other processes are performed.

Further, if the simple destination name input process S30 is not performed, the destination name non-input process (step S40)
When the destination name non-input process is performed as in the list input process S20, the distance and direction to the destination are calculated (step S12), and the destination name is not included on the display screen of the display 17. The location information is displayed (step S13), the destination setting processing is terminated, and other processing is performed.

If the destination name non-input process S40 is not performed, the destination name input process (step S50).
, The desired destination name is input, the distance and direction to the destination are calculated (step S12), and the destination information including the input destination name is displayed on the display screen of the display 17 (step S12). S13) The destination setting process is ended and another process is performed.

Next, the list input process S20, the simple destination name input process S30, the destination name non-input process S40, and the destination name input process S50 will be described in detail. a) List Input Processing S20 First, the detailed processing operation of the list input processing S20 will be described with reference to FIGS. 4 and 9.

In the list input processing S20, the RAM
A destination name list is displayed on the screen of the display 17 based on the destination name data registered on the display 9. In the destination name list, as shown in FIG. 9, the registered place names are displayed, and the direction keys D ₁ and D are displayed.
By depressing ₃ , the selection cursor SC ₁ (indicated by a bold frame in the figure) moves up and down, and a place name on the list can be designated (step S22). Further, if the direction keys D ₁ and D ₃ are held down, the place name list of the previous screen or the next screen is displayed.

When the place name on the list is designated, the CPU 7
Acquires the key contents (step S23), and executes key K ₄
Is depressed (step S2)
4). If the execution key K ₄ cannot be pressed down, it waits as it is.

When the execution key K ₄ is depressed,
The map data in the vicinity of the point corresponding to the place name on the list is read from the CD-ROM disc DK and displayed on the display 1
A map is drawn on 7 screens (step S25).

Again, the CPU 7 obtains the key contents (step
Up S26), this time the destination key K ₂Was pushed down
It is determined whether or not (step S27). Destination key K₂
If is not pushed, simple destination name input process S
Move to 30.

When the destination key K ₂ is depressed, the selected registered place name is transferred to the destination name memory area of the RAM 9 and stored (step S28). b) Simple destination name input processing S30 Next, the detailed processing operation of the simple destination name input processing S30 will be described with reference to FIG.

In the simple destination name input processing S30,
The CPU 7 acquires the contents of the key (step S31) and determines whether or not the execution key K ₄ has been pressed (step S32). When the execution key K ₄ is depressed, the process proceeds to the process S43 of the destination name non-input process S40.

If the execution key K ₄ is not depressed, the destination point is designated by the destination designation cursor (not shown) displayed on the map screen (step S3).
3). Correspondingly CPU7 acquires the key content (step S34), and determines whether the lowered pressing the destination key K ₂ (step S35). If the destination key K ₂ is not depressed, the process proceeds to destination name non-input processing S40.

When the destination key K ₂ is pressed down, the simple destination name "TEMP." Is transferred to and stored in the destination name memory area of the RAM 9 (step S36), and the coordinates of the destination cursor position are designated. (For example, latitude and longitude) are stored as destination coordinates. As a result, the destination name displayed on the display screen is "TEM
P. Is displayed, and the straight line distance between the destination coordinates and the current position is displayed. C) Destination name non-input processing S40 Next, the detailed processing operation of the destination name non-input processing S40 is shown in FIG.
And it demonstrates with reference to FIG.

In the destination name non-input processing S40, C
The PU 7 acquires the key contents (step S41) and determines whether or not the execution key K ₄ has been pressed (step S41).
424). If the execution key K ₄ cannot be pressed down,
The process moves to step S41 again.

Enter key K_FourIf is pressed down,
The name input screen shown in 10 is displayed (step S4).
3). Here, the CPU 7 acquires the key contents again (step
Up S44), this time destination key K₂Was pushed down
It is determined whether or not (step S45). Destination key K ₂
If is not pushed down, destination name input processing S50
Move to.

When the destination key K ₂ is depressed, the space is transferred to the destination name memory area of the RAM 9 and stored (step S28). This leaves the destination name blank and not displayed. d) Destination Name Input Processing S50 Next, the detailed processing operation of the destination name input processing S50 will be described with reference to FIGS. 7 and 10.

In the destination name input processing S50, the name input screen (see FIG. 10) has already been displayed in the processing step S43 of the destination name non-input processing S40.

Then, the destination name is input character by character from the character data (step S51). More specifically, by operating the direction keys D ₁ to D _4, selects the character data displayed on the screen. For example,
If you want to enter the character data of "J", the upper respectively the character data selection cursor SC ₂ (in the figure indicated by bold line.) The direction keys D ₁ to D _4, left lower, it is moved to the right , The character data selection cursor is moved to the character data “J”. When the execute key K ₄ is pressed down, the character data “J” is confirmed and is transferred and displayed on the input window side. Note that FIG. 10 shows a state in which up to “MT.FU” of the destination name “MT.FUJI” to be input is input. Further, after depressing the execution key K _4, if you notice wrong thing, character data is canceled, which is determined immediately before by depressing the cancel key K _3.

At the same time, the CPU 7 acquires the contents of the key (step S52) and determines whether or not the destination key K ₂ has been depressed (step S53). Destination key K
_{If 2} is not pushed down, the process proceeds to step S51 again.

When the destination key K ₂ is depressed after inputting the desired destination name as described above, the destination name entered in the destination name memory area of the RAM 9, for example, "MT.FUJI" in the above example. Is transmitted and stored (step S28). As a result, the destination name "MT.FU
“JI” will be displayed on the screen of the display 17.

In FIG. 11, the destination name "MT.FUJ" is displayed.
A display screen when I "is displayed. The map screen MP ₁ is displayed on the display screen, and the position of a building or the like (indicated by" ● "in the figure) that serves as a mark in the map screen and The name (indicated by ABC and DEF in the figure), etc. are displayed. The distance scale DS of the map screen MP is displayed on the upper left side of this screen. (Triangle mark), distance scale from your current position DSC
(For example, a circle having a radius of 500 meters) is displayed. In addition, the destination name ONM entered as destination information
= “MT.FUJI” and the linear distance LD from the current position to the destination are displayed in the upper right of the screen,
The direction from the current position is displayed with an arrow.

As described above, the desired destination name is always displayed on the display screen even if the destination does not exist in the map currently displayed on the display. Therefore, the point set as the destination is set. Even if the user forgets, the user can easily recognize and confirm where he is traveling by simply looking at the destination name display.

In the above embodiment, only the case of temporarily registering the destination name has been described, but the input destination name and the corresponding position coordinates (latitude, longitude, etc.) are stored in the nonvolatile memory portion of the RAM 9. By doing so, the destination name can be selected next time by the list input process. In this case, C
The PU 7 displays the CD-ROM disc D when displaying the list.
Not only K but also the non-volatile memory portion of the RAM 9 may be referred to.

Further, in the above embodiment, the input device 11 is constructed integrally with the display unit 13, but it may be constructed as a separate body or as a remote control device using infrared rays or the like.

In the above embodiments, only one destination is described, but it is possible to set a plurality of destination names. In this case, one destination name closest to the current position can be displayed on the screen, or destination names can be displayed in the order of setting. Furthermore, it is possible to display a plurality of destination names at the same time. Furthermore, when multiple destination names are set, it is automatically determined that a certain destination has been reached by the fact that the destination and the current position are within the specified distance, and the next destination name is set. It can also be configured to display automatically.

[0046]

According to the present invention, in the navigation device, when the user sets the destination name data by the setting means such as the keyboard or the remote control device, the set destination name data is stored in the second storage means such as RAM. Remember. As a result, the destination name display control means displays the destination name on the map display based on the destination name data, so that the destination can be easily confirmed and recognized, and the user does not feel uneasy.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a navigation system.

FIG. 2 is a processing flowchart showing a schematic operation of the navigation system.

FIG. 3 is a schematic processing flowchart of destination setting processing.

FIG. 4 is a detailed processing flowchart of list input processing.

FIG. 5 is a detailed process flowchart of a simple destination name input process.

FIG. 6 is a detailed processing flowchart of destination name non-input processing.

FIG. 7 is a detailed processing flowchart of destination name input processing.

FIG. 8 is an explanatory diagram showing a configuration of a commander.

FIG. 9 is an explanatory diagram of a list input screen.

FIG. 10 is an explanatory diagram of a destination input screen.

FIG. 11 is an explanatory diagram of a display screen according to the present embodiment.

FIG. 12 is an explanatory diagram of a display screen of a conventional example.

[Explanation of symbols]

100 ... Navigation system 1 ... Geomagnetic sensor 2 ... Angle sensor 3 ... Travel distance sensor 4 ... GPS receiver 5 ... System controller 6 ... Interface part 7 ... CPU 8 ... ROM 9 ... RAM 10 ... Bus line 11 ... Input device (commander) 12 ... CD-ROM drive 13 ... Display unit 14 ... Graphic controller 15 ... Buffer memory 16 ... Display control unit 17 ... Display D _{1 to} D ₄ ... Direction key DK ... CD-ROM disk DS ... Distance scale DSC ... From present position Distance scale of K ₁ … List key K ₂ … Destination key K ₃ … Cancel key K ₄ … Execution key LD… Linear distance display to the destination MP ₁ … Map display ONM… Destination name display P… Person's current position mark SC ₁ … Selection cursor SC ₂ … Character data selection Select cursor X ... Direction mark to the destination

Claims (1)

[Claims] 1. A positioning means for positioning the self-position and outputting self-position data, a first storage means for storing map data, a display means for displaying various information, and the display means based on the map data. In a navigation device having a map display on the map display and displaying a self-position based on the self-position data on the map display, setting means for setting destination name data, and the set destination name A navigation device comprising: a second storage unit that stores data; and a destination name display control unit that displays a destination name on the map display based on the destination name data.