JP3350257B2 - Travel position display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is applied to an in-vehicle traveling position display device and the like, and when a current position of a self-vehicle passes on a map, such as a prefectural border, a national border or a territorial sea, a voice notification of the prefecture name or the country name is provided. The present invention relates to a running position display device.

[0002]

2. Description of the Related Art FIG. 5 is a view showing a display screen of a conventional vehicle-mounted traveling position display device. In FIG. 5, a map 2 is displayed on a display screen 1 such as a liquid crystal display, and a map name “@ 1-chome” 3 and a direction “N” 4 are displayed on the map 2. Further, a current position 5, an intersection 6, and a trajectory 7 of the traveling road of the own vehicle whose traveling direction is indicated by an arrow are displayed. The shortest route (road) 8 to the destination when the route search is performed is displayed on the screen with a bold line. In this search route display operation, the display of the search route is instructed from the display / operation unit, the route search mode is set, and the destination is input. This input is display screen 1
Select the place name displayed in. Current position 5 in FIG.
From the multiple routes to the destination, select the expected route that will reach the destination the earliest. In this case, select the distance from the current position 5 to the destination and the road type (expressway, national highway, prefectural road, etc.) Then, the route 8 is displayed on the display screen 1.

[0003] When the vehicle travels on the search route (road), when it reaches a predetermined position before the intersection 6, "synthesis is about 700 m. Please be careful" is output as synthesized speech. In this case, the predetermined position before the intersection 6 is 700
In addition to the m, guidance (guidance) points are set at 300 m and 100 m before the intersection 6 on the search route (road), and guidance of the synthesized voice is also performed at this point.

As described above, in the conventional traveling position display device,
When a predicted route (search route) that reaches the destination earliest among a plurality of routes from the current position of the vehicle to the destination is set on the map, the distance is set in front of an intersection of the search route. Is notified by a synthetic voice.

[0005]

However, in the conventional in-vehicle traveling position display device, when the vehicle travels by setting an expected route (search route) from the current position of the own vehicle to the destination earliest on the map, etc. In addition, although the notification of the distance is made by a synthetic voice in front of the intersection of the route, for example, the notification of the name of the prefecture when passing the prefectural border is not performed, so that the use of the notification is inconvenient. is there.

The present invention solves such a conventional problem. When a vehicle (current position) on a map passes a prefectural border, a national border, a territorial sea, or the like, a notification of the prefecture name or the country name is issued. An object of the present invention is to provide an excellent traveling position display device which is performed and whose convenience is improved.

[0007]

In order to achieve the above object, a travel position display device according to the present invention comprises: a map information storage means for storing map data; and a self-position / direction detection for detecting a current self-position and direction. Means, a screen display means for displaying the map information read from the map information storage means and a self-position detected by the self-position and orientation detection means on a screen, and a self-position detected by the self-position and orientation detection means being displayed on the display means. Identification means for identifying that the vehicle has passed the prefectural border on a map, and speech synthesis output means for outputting the new prefecture name by speech synthesis when the identification means identifies that the own location has passed the prefectural border. It is configured to be provided.

Further , the traveling position display device of the present invention comprises: a setting means for setting a predetermined traveling distance in the identification means; a judging means for judging whether or not the own vehicle has traveled a predetermined traveling distance; Each time the determining means determines that the vehicle has traveled the predetermined traveling distance, the prefecture name data of the current position is fetched from the map information read from the map information storage means, and the difference between this prefecture name and the previous prefecture name is identified. And an identification means for activating the speech synthesis output means in the case of a difference.

Further , the traveling position display device of the present invention has a configuration in which a GPS receiver, a direction sensor and a vehicle speed sensor are used as the self-position and direction detecting means.

Further , the traveling position display device of the present invention stores map data including national borders and territorial waters in the map information storage means, and when the vehicle passes through the national borders and territorial waters at its own position, the new country name is spoken. It is configured to output by synthesis.

[0011]

With such a configuration, the traveling position display device according to any one of claims 1 to 4, wherein the self-position and azimuth detecting means using the GPS receiver, the azimuth sensor and the vehicle speed sensor detects the current position and azimuth of the self. When the self-position passes the prefectural border, national border or territorial sea on the map displayed by the display means, the new prefectural name or country name is output by speech synthesis. In this case, it is determined whether or not the vehicle has traveled a predetermined traveling distance.Each time the vehicle travels, the prefecture name data of the current position is fetched from the map information, and the difference from the previous prefecture name is identified,
When the prefecture name is different, the speech synthesis output means is activated and the prefecture name is notified by voice. Therefore, when the current position (own vehicle) on the map passes through a prefectural border, a national border, or a territorial sea, the name of the prefecture or country can be easily known, and the convenience is improved.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a traveling position display device according to the present invention. FIG. 1 is a block diagram showing the configuration of the vehicle-mounted traveling position display device. In FIG.
In this example, a direction sensor 11 that detects the absolute running direction of the host vehicle, uses a geomagnetic sensor and a gyro sensor that detects a relative running direction, and the like, and a vehicle speed sensor 12 that generates a pulse corresponding to the rotation speed of the vehicle, And a GPS receiver 13 for receiving GPS radio waves from three or more GPS satellites in the sky and outputting two-dimensional or three-dimensional (latitude, longitude, altitude) information of the reception position. Further, a CD-ROM drive 14 for transmitting map information and a map information are stored, and the map information is stored in the CD-ROM drive 14.
And a display / operation unit 16 including a keyboard, a receiving unit for receiving commands for remote operation, and the like. The display / operation unit 1
6, a liquid crystal display (LCD) 16A provided in
A remote controller 16B for performing a remote operation;
A main device 17 is provided.

FIG. 2 is a block diagram showing a detailed configuration of the main unit 17. In FIG. 2, a main unit 17 includes a CPU 18 for performing various controls and calculations,
A program ROM 19 storing a program for the U 18 to perform control and calculation, and a working RAM 20 are provided. Further, a font ROM 21 storing character codes and symbol codes for display, a direction sensor 11, a vehicle speed sensor 12, and a display / operation unit 16 shown in FIG.
An input interface (I / F) circuit 22 for processing a detection signal from the CPU and sending it to the CPU 18;
A communication interface (I / F) circuit 23 for transmitting and receiving information to and from the receiver 13 and the CD-ROM drive 14 is provided. Also, an image processor 24 for sending a display image signal to the LCD 16A, an image memory 25 for temporarily storing image information, and an audio processor for outputting a synthetic audio signal when outputting various processing states and display contents as audio. 26 are provided. Further, a speaker 27 for outputting sound is provided.

With respect to the embodiment configured as described above,
The operation will be described below. First, output signals of the azimuth sensor 11, the vehicle speed sensor 12, and the GPS receiver 13 are input to an input interface (I / F) circuit 22.
Is transmitted to the CPU 18 of the main unit 17 through C
The PU 18 operates according to the program read from the program ROM 19, calculates the current position of the own vehicle equipped with the device, and obtains its latitude and longitude. Based on the current position, map information in a predetermined range centered on the current position is controlled by the communication interface (I / I /
F) CD through circuit 23 and CD-ROM drive 14
-Read from the ROM 15; This map information is stored in the working RAM 20. A part of the map information stored in the RAM 20 is read, converted into image information by the image processor 24, and written into the image memory 25. The image information written in the image memory 25 is read out under the control of the image processor 24 and sent to the liquid crystal display 16A of the display / operation unit 16. Here, a map of a predetermined range around the current position of the vehicle is displayed.

If the map information read from the RAM 20 includes a character code and a symbol code, the character code and the symbol code are read from the font ROM 21 and displayed on the liquid crystal display 16A together with the map, characters and school code. It is displayed as a symbol such as. Further, the current position of the own vehicle, which is sequentially calculated and calculated by the CPU 18 as the own vehicle runs, is changed and displayed on the map. The various processing states and display contents are output as sound from the speaker 27 through the sound processor 26. In this way, the map and the current position of the vehicle are displayed on the liquid crystal display 16A. When the vehicle crosses the prefectural border, the prefectural name is output from the speaker 27 through the audio processor 26.

Hereinafter, the notification by voice of the prefecture name will be described. FIG. 3 is a display diagram showing a display screen on the liquid crystal display 16A when passing through a prefectural border. FIG.
Is a flowchart showing a processing procedure of an operation when passing through the prefectural border.

In FIG. 3, the liquid crystal display 16
In A, a map 31 is displayed, and the direction “N” 32 is displayed on the map 31 on the screen. In this map, the prefecture A and the prefecture B are bordered by the prefectural border 33, and the vehicle is traveling from the current position 22 to the next current position (current position 23) over the prefectural border 33.

In FIG. 4, during traveling, the CPU 18 uses the communication interface (I / F) circuit 23 and the map information read from the CD-ROM 15 through the CD-ROM drive 14 to read the prefecture name data of the current position (see FIG. 3). The current position 22 in the prefecture A is fetched (step (indicated by S in the figure) 10). Next, the passage of the preset "XKm" is determined, and when this passage is confirmed, the CPU 18 again takes in the prefecture name data of the current position and resets the count of "XKm" (steps 11 and 12). . Next, CP
U18 determines whether the acquired prefecture name of the current position is the previous prefecture name (current position 22 in A prefecture shown in FIG. 3), and in the case of the same prefecture name (A prefecture shown in FIG. 3), Returning to step 11, the passage of "XKm" is determined again. This judgment is repeated, and the last prefecture name (current position 22 in A prefecture shown in FIG. 3)
In the case of a different prefecture name (the current position 23 in the B prefecture shown in FIG. 3), that is, when the vehicle passes through the prefectural border line 33 and the own vehicle is the current position 23 in the B prefecture, the name of the prefecture is input to the audio processor 26 and Voice output through the speaker 27 (Step 1)
4). For example, the voice notification says, "We have crossed the prefectural border.
I'm traveling in prefecture B. "

As described above, in this embodiment, when the own vehicle (current position) on the map passes the prefectural border, the notification of the prefectural name is performed, thereby changing the district number in the telephone number, for example. It turns out that. Also, the notification of the current position in a call through an automatic telephone or the like is clearly performed.

In this embodiment, the present invention is applied to a vehicle-mounted traveling position display device. However, for example, a portable traveling position display device or a traveling position display device mounted on an aircraft or a ship may be used as it is. Applicable. In this case, instead of the voice notification of the name of the prefecture when passing through the prefectural border, the voice of the name of the country when passing through the national border, territorial waters, etc. may be notified by voice.

[0021]

As is apparent from the above description, according to the traveling position display device according to the first to fourth aspects, the self-position and the azimuth are detected, and the self-position is displayed on a map displayed on the display means. Since the new prefecture name or country name is output by speech synthesis when passing through the prefectural border, national border or territorial sea in,
When the current position (own vehicle) on the map passes through a prefectural border, a national border, or a territorial sea, the name of the prefecture or the country can be easily known, and the convenience is improved.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of a traveling position display device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of the embodiment.

FIG. 3 is a display diagram showing a display screen when passing through a prefectural border in the embodiment.

FIG. 4 is a flowchart showing a processing procedure of an operation when passing through a prefectural border in the embodiment.

FIG. 5 is a display diagram showing a display screen of a conventional traveling position display device.

[Explanation of symbols]

 Reference Signs List 11 direction sensor 12 vehicle speed sensor 13 GPS receiver 15 CD-ROM 16 display / operation unit 16A LCD 17 main unit 18 CPU 24 image processor 26 audio processor 27 speaker

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/00 G09B 29/00

Claims (2)

(57) [Claims] 1. A current position detecting means for detecting a current position of the vehicle, the said current position detecting means detects the current position, and identifying means for identifying that it has passed the border, the identification means the border Speech synthesis output that outputs a new prefecture name by speech synthesis when it is identified that the current location has passed
Means ; setting means for setting a predetermined traveling distance; determining means for determining whether or not the vehicle has traveled the predetermined traveling distance; and determining means for determining whether or not the vehicle has traveled the predetermined traveling distance. Each time it is determined that the vehicle has traveled, the difference between the prefecture name at the current position and the prefecture name before traveling the predetermined traveling distance is identified, and when the difference is found, the activation means for activating the speech synthesis output means A travel position display device, comprising: 2. Whenever it is determined that the vehicle has traveled the predetermined traveling distance, the difference between the prefecture name at the current position and the prefecture name before traveling the predetermined traveling distance is identified, and the difference is determined. Judgment that the current location has passed the prefectural border, and sounds a new prefecture name.
A running position display method characterized by outputting by voice synthesis .