JP3274982B2 - In-vehicle navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle navigation device, and more particularly, to an on-vehicle navigation device for notifying the name of an approaching place, the name of a passing place, or the like by voice through a boundary.

[0002]

2. Description of the Related Art In a conventional on-vehicle navigation system, a vehicle position is displayed on a map displayed on a display device together with a traveling direction of the vehicle so as to provide a driver with road guidance or to determine a destination from a departure point or a current position. There is known a device having a route guidance function of performing a search for a route from a departure point to a destination by setting the route, and displaying the searched route on a display device for guidance. Among such conventional in-vehicle navigation devices, there are also devices that provide guidance such as intersection names and guidance directions by a voice output device.

[0003]

In particular, when traveling on an unfamiliar land, for example, when passing a prefectural border or a city border, the in-vehicle navigation device promptly informs the name of the entered prefecture or city. Is desirable.
However, there was no such in-vehicle navigation device.

It is an object of the present invention to provide an on-vehicle navigation device which notifies a place name, a passing place name, and the like of an approaching side by a vehicle when a vehicle passes a boundary by voice.

[0005]

According to the present invention, there is provided an on-vehicle navigation device which forms a boundary link with a map database which stores boundary links crossing a predetermined boundary and information based on the boundary links together with map data.
Following detection of the arrival of the vehicle at the end node position,
Detection of arrival at the position of the other end node forming the boundary link
To detect the passage of the vehicle's boundary link position
Boundary link passage detection means, boundary type instruction means for instructing the boundary type, and boundary attribute data retrieval for retrieving name data based on the boundary link based on the passage detection output of the boundary link of the type designated by the boundary type instruction means Means, and a notifying means for notifying by voice a name based on the name data retrieved by the boundary attribute data retrieving means.

According to the on-vehicle navigation device of the present invention, when it is detected that the own vehicle has passed the boundary link position of the type designated by the boundary type designating means, the vehicle is connected to the boundary link based on the passage detection output. Name data based on the searched name data is searched, and a name based on the searched name data is notified by voice.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-vehicle navigation device according to the present invention will be described below with reference to an embodiment.

FIG. 1 is a block diagram showing a configuration of an on-vehicle navigation device according to an embodiment of the present invention. A description will be given of an example in which the name of the side is notified by voice.

A vehicle-mounted navigation device 1 according to one embodiment of the present invention includes a vehicle position calculation device 23 which receives signals from a GPS receiver 21 and an autonomous navigation sensor 22 and calculates the position and direction of the vehicle. In addition to the position calculation processor 2, map data and map data, node data set at predetermined intervals on roads on the road map, link data connecting adjacent nodes on the road, and roads defined by the link data A map database device 3 that records boundary link data that crosses the boundaries of administrative divisions or rivers, boundary type data crossed by boundary link data, attribute data including name data based on the boundary type data, and the like. A reading device 4 for reading map data and the like from the database device 3 and a boundary passing notification for instructing a boundary passing notification Input device 6 including a display key switch 61 and a boundary type instruction key switch 62 for instructing a boundary type to be notified of a prefecture name, a city name, and the like, and a video display processing device 7 including a graphic controller 71, a video RAM 72, and a display device 73. And an audio output device 8.

The in-vehicle navigation device 1 further includes a controller 9 including a central processing unit cooperating with the memory 5, and receives the vehicle position and direction information output from the vehicle position arithmetic processing unit 2 and controls the controller 9. The vehicle position based on the vehicle position information and the vehicle traveling direction based on the direction display information are displayed on the display device 73 by the image display processing device 7 under the control of the controller 9 from the map database device 3. The reading device 4 reads map data and the like in a range including the own vehicle position,
Upon receiving the read map data and the like, the map based on the map data and the position of the own vehicle on the map display are displayed on the display device 73 by the video display processing device 7.

The on-vehicle navigation device 1 is further configured to notify the place name on the entry side by voice through the voice output device 8 when passing through the boundary based on an instruction from the input device 6 under the control of the controller 9. I have.

Here, the controller 9 receives the boundary passing notification instruction from the boundary passing notification instruction key switch 61, detects the node immediately before the own vehicle traveling direction, and the detected node is one end or the other end of the boundary link. A boundary link passage detection circuit 91 for detecting entry into and exit from the boundary link, and a passage detection output by the boundary link passage detection means 91 and a notification type instruction from the boundary type instruction key switch 62. And a boundary attribute data search circuit 92 for searching for attribute data based on the boundary link.

The operation of the in-vehicle navigation device 1 according to the embodiment of the present invention configured as described above will be described with reference to the flowchart of FIG.

When the execution of the program is started, it is checked whether or not a boundary passing notification instruction is given by the boundary passing notification instruction key switch 61 (step S).
1). If it is determined in step S1 that the instruction to notify the boundary passage has not been issued, another process is executed if the instruction is continued.

When it is determined in step S1 that the instruction to notify the boundary passage has been issued, the node immediately before the own vehicle traveling direction is detected (step S2), and the detected node is the node at one end of the boundary link. It is checked whether it is (Step S3). If it is determined in step S2 that the detected node is not the node at one end of the boundary link, the process is executed again from step S2. That is, it waits for the vehicle to reach a position where the node immediately before the own vehicle traveling direction is a node at one end of the boundary link.

If it is determined in step S3 that the node is the node at one end of the boundary link, that is, if the vehicle has advanced to a position where the node immediately before the traveling direction is the node at one end of the boundary link, It is checked whether the vehicle has reached the node at the other end of the boundary link, and waits until the vehicle reaches a position that is the node at the other end of the boundary link (step S4).

For example, as shown in FIG. 3A, if the node A immediately before the own vehicle position v is the node at one end of the boundary link C while the own vehicle is traveling on the road a, It waits for the car to reach the position of node A, and then when it reaches the position of node A, it reaches the position of node B at the other end of boundary link C that crosses boundary b. That is, the vehicle waits for the vehicle to pass the boundary b. In this case, the own vehicle passes through the boundary b in the direction of the arrow d.

If it is determined in step S4 that the vehicle has reached the other end of the boundary link, it is checked whether or not the boundary type is designated by the boundary type instruction key switch 62 (step S5). . In this example, when the boundary type is not indicated by the boundary type instruction key switch 62, it is regarded that the prefectural border is designated as the boundary type, and when the boundary type is indicated by the boundary type instruction key switch 62. Is deemed to have been ordered by the city.

If it is determined in step S5 that the boundary type has not been designated by the boundary type instruction key switch 62, it is determined based on the attribute data of the boundary link whether or not the boundary link is a boundary link crossing the prefectural border. (Step S6), if it is determined that the boundary link is not a boundary link crossing the prefectural border, the process is executed again from step S1 following step S6.

In step S6, when it is determined based on the attribute data of the boundary link that the boundary link is a boundary link crossing the prefectural border, the name data, which is the attribute data of the boundary link, is determined following step S6. The prefecture name is searched based on the boundary link data (step S
7) The searched prefecture name is notified by voice via the voice output device 8 (step S8), and subsequently, step S1 is performed.
Run from

In this example, when the own vehicle passes through the boundary b and reaches the node B, as shown in FIG. 3B, "entering Tokyo" is notified by voice. Also, in step S3, the vehicle travels until the node immediately before the own vehicle traveling direction is the node B and reaches the position of the node B,
Subsequently, when the vehicle reaches the node A at the other end of the boundary link in step S4, it means that the own vehicle has passed the boundary b on the road a in the direction of the dashed arrow e as shown in FIG. Then, in this case, you will be notified by voice as in {entered Kanagawa Prefecture}. In other words, depending on which side of the node position of the boundary link the vehicle has reached first,
It is determined whether the vehicle has entered Tokyo from Kanagawa Prefecture or Kanagawa Prefecture from Tokyo.

When it is determined in step S5 that the boundary type is designated by the boundary type instruction key switch 62, whether or not the boundary link is a boundary link crossing the city boundary is determined based on the attribute data of the boundary link. (Step S16), when it is determined that the boundary link is not a boundary link crossing the city boundary, the process is executed again from step S1 following step S16.

If it is determined in step S16 that the boundary link is a boundary link crossing the city boundary based on the attribute data of the boundary link, the process proceeds from step S16 to start from the name data which is the attribute data of the boundary link. ,
The city name is searched based on the boundary link data (step S
17), the searched city name is voice-outputted by the voice output device 8
(Step S18), and then the process is executed from step S1.

Also in this case, the approach direction is determined based on which of the nodes constituting the boundary link that the vehicle crosses the city boundary, and the approach direction is determined, and the city name of the approach side is notified by voice. Will be.

One of a plurality of instructions, for example, a prefectural border, a city border, a town border, a village border, etc., can be designated by the border type indication key switch 62, and the prefectural border is included in the name data which is the attribute data of the border link. , Name data for a city border, a town border, a village border, etc. are provided, and based on one of a plurality of instructions indicated by the boundary type instruction key switch 62 and the boundary link, attribute data of the boundary link is provided. May be selected and the corresponding prefecture name, city name, town name, and village name are notified by voice.

In the above-described on-vehicle navigation device 1 according to the embodiment of the present invention, the prefecture name, city name,
Although the case where the voice of the town name and the village name is notified is illustrated,
The names of the rivers that have passed may be reported, and in this case, the names of the rivers to be reported may be only the first-grade river names, or the first-grade river names and the second-grade river names may be similarly performed.

In this case, for example, if you cross the Tama River, you will be notified as "I crossed the Tama River". However, when the notification of the prefecture name is instructed, even if you cross the Tama River and enter Tokyo. You will be notified as if you entered Tokyo.

Also, if a boundary link is provided at the entrance and exit of the tunnel, for example, when entering the Kanetsu Tunnel, {entering the Kanetsu Tunnel} can be notified, and also when crossing a highway or a national highway. It will be readily appreciated that the same applies.

[0029]

As described above, according to the on-vehicle navigation device according to the present invention, when the own vehicle passes the boundary link position of the type designated by the boundary type designating means,
An effect is obtained that a name based on the passage detection output is searched, and the searched name is notified by voice.

Further, according to the on-vehicle navigation device according to the present invention, the name of the prefecture is notified by voice at the time of passing the prefectural border when the prefectural border is specified, and at the time of passing the city boundary when the prefectural border is specified, based on the instruction by the boundary type specifying means. The effect that the city name is notified by voice is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle-mounted navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining an operation of the on-vehicle navigation device according to the embodiment of the present invention;

FIG. 3 is a schematic diagram for explaining the operation of the on-vehicle navigation device according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 On-vehicle navigation device 2 Vehicle position calculation processing device 3 Map database device 4 Reading device 5 Memory 6 Input device 7 Video display processing device 8 Audio output device 9 Controller 61 Boundary passage notification instruction key switch 62 Boundary type instruction key switch 91 Boundary link passage Detection circuit 92 Boundary attribute data search circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00-21/36 G09B 29/00-29/10 G08G 1/09-1/137 G01S 5 / 02

Claims (4)

(57) [Claims] 1. A map database device which stores a boundary link crossing a predetermined boundary and information based on the boundary link together with map data, and a first end forming a boundary link.
Following the detection of the arrival of the vehicle at the
Detection of arrival at the other end node position forming the network
Boundary link that detects the passage of the vehicle's border link position
Boundary detection means for specifying a boundary type, and boundary attribute data search means for searching for name data based on the boundary link based on the passage detection output of the boundary link of the type specified by the boundary type specification means And an informing means for informing by voice a name based on the name data searched by the boundary attribute data searching means. 2. The in-vehicle navigation device according to claim 1, wherein the boundary type is a prefectural border, and the name based on the name data is a prefecture name at the other end of the boundary link. 3. The in-vehicle navigation device according to claim 1, wherein the boundary type is a city boundary, and the name based on the name data is a city name at the other end of the boundary link. 4. The vehicle-mounted navigation device according to claim 1, wherein the boundary type is a river.