JP3510965B2 - Route guidance device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a route guidance device.

[0002]

2. Description of the Related Art A conventional route guidance device, when displaying a detailed map, displays a desired area at a long distance from the area of the displayed map. When the desired area is displayed on the screen, the display screen is scrolled at the stage where the image is reduced and the image is reduced to a certain extent. Then, the cursor is moved to the desired area and the map displayed on the screen is enlarged.

[0003]

By the way, when the map displayed on the screen is reduced, pressing the reduction display key causes the map displayed on the screen to be reduced. If the reduction display key is pressed once, it is reduced by one step, and if it is pressed twice, it is reduced by two steps. Further, if the reduction display key is kept pressed, the stepwise reduction is repeatedly executed, and the map is reduced to the smallest scale. If the pressing of the reduced display key is released while the reduced display key is being pressed, the scale displayed when the pressed key is released is maintained and the map is displayed.

Also, when a detailed map is displayed,
When displaying a desired area that is far away from the displayed map area, it is unclear how appropriate the reduced scale of the currently displayed map is. Press several times, and check the degree of reduction each time you press the button while watching the degree of reduction of the screen.

However, in order to obtain a desired reduction degree, the operation of checking the reduction degree while pressing the reduction display key several times and observing the reduction degree of the screen each time it is pressed is complicated. There is.

Further, in order to obtain a desired degree of enlargement, the operation of checking the degree of enlargement while pressing the enlargement display key several times and observing the degree of enlargement of the screen each time it is pressed is complicated. There is.

It is an object of the present invention to provide a route guidance device in which the adjustment work is easy when the map displayed on the screen of the route guidance device is reduced and adjusted to a desired scale. is there.

It is another object of the present invention to provide a route guidance device in which the adjustment work is easy when the map displayed on the screen of the route guidance device is enlarged and adjusted to a desired scale. It is a thing.

[0009]

According to the present invention, there is provided:
A reduction display key for reducing the size of the map displayed on the map display means and a specific scale that is a specific scale of a plurality of preset scales for displaying the map on the map display means are set. When the scale setting means and the reduction display key are continuously pressed, the scale of the map displayed on the map display means is gradually increased among the plurality of scales set, and in this process , When displayed at the specific scale, the increase in the scale is stopped,
And a display control unit for displaying the image at the specific scale.

According to a second aspect of the present invention, among the enlarged display key for enlarging and displaying the map displayed on the map display means, and a plurality of preset scales for displaying the map on the map display means. The scale setting means for setting a specific scale which is a specific scale of, and the scale display means, among the plurality of scales set, are displayed on the map display means when the enlargement display key is continuously pressed. This is a device having display control means for gradually increasing the scale of the map and, when displaying the map at the specific scale in this process, stopping the increase of the scale and displaying the map at the specific scale.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a route guiding device RN1 which is an embodiment of the present invention.

The route guidance device RN1 includes an input device 1, a monitor 2, a CD-ROM 3, a GPS receiver 4, a beacon receiver 5, an FM multiplex reception unit 6, a gyro 7, and a vehicle speed pulse detector. 8, a traffic information data memory 9 and a route guidance device body 10.

The route guiding apparatus main body 10 is composed of a microcomputer, displays a map in the vicinity of the current position of the vehicle on the monitor 2, guides the route from the starting point to the destination, the vehicle position mark, and other guidance. It is for displaying information.

The input device 1 is an example of a means for inputting a destination and the like, and the monitor 2 is composed of a liquid crystal display device or the like and displays a map, a guide route, an intersection guide map, various menus and the like. . The CD-ROM 3 is a memory in which map data including a road layer, a background layer, a character / symbol layer, etc., for each scale is stored. GPS receiver 4
Is for detecting the current position of the vehicle, the vehicle direction, the vehicle speed, etc. by satellite navigation.

The beacon receiver 5 receives an optical beacon or a radio wave beacon output from a transmitter provided along the road. The FM multiplex reception unit 6 is
It is a unit that receives traffic information multiplexed in FM broadcasting. The optical beacon and the radio beacon are used to supply traffic information in a narrow range, and can supply relatively detailed traffic information. On the other hand, although the communicable range of FM multiplex broadcasting is extremely wide, such as the entire Kanto region,
Information density is relatively low. The gyro 7 detects the rotation angle of the vehicle, and the vehicle speed pulse detector 8 detects the vehicle speed pulse generated as the vehicle moves. The traffic information data memory 9 is a memory for storing traffic information obtained through the beacon receiver 5 or the FM multiplex reception unit 6, and stores past traffic information.

That is, the route guidance device main body 10 has a GPS
The information obtained from the receiver 4, the gyro 7, and the vehicle speed pulse detector 8 detects the current position, direction, speed, etc. of the vehicle with high accuracy.
Based on the map data stored in 3 and the traffic information acquired via the beacon receiver 5 or the FM multiplex reception unit 6, the route with the lowest cost from the starting point to the destination specified by the user is searched for. CD-RO
A map image near the current position of the vehicle is displayed on the monitor 2 using the map data stored in M3, and the vehicle position mark and the guide route are displayed in accordance with the map image.
Further, the user is provided with various kinds of guidance information in accordance with the movement of the vehicle.

The monitor 2 is an example of map display means for displaying a predetermined map, and the input device 1 is an example of a reduction display key for reducing the map displayed on the map display means. The device 1 is an example of a scale setting unit that sets a specific scale that is a specific scale among a plurality of preset scales when a map is displayed on the map display unit.

Further, the route guidance device body 10 displays the scale of the map displayed on the map display means among the plurality of preset scales when the reduction display key is continuously pressed. This is an example of the display control means for gradually reducing and displaying in the specific scale in the process, stopping the reduction in the scale and displaying in the specific scale.

Next, the operation of the above embodiment will be described.

FIG. 2 is a flow chart showing the operation of the above embodiment.

First, an input of a key provided on the input device 1 or a remote controller (not shown) is detected (S1), the detected key is turned on (S2), and if the reduced display key is turned on ( S3), it is determined whether the scale is the upper limit (S11). If the scale is the upper limit (S1
1) Display the map on the monitor 2 at the scale of the upper limit (S)
21).

If the scale is not the upper limit (S11) and the scale is not 1 / 100,000 (S12), the current scale is reduced by one level and displayed (S13), and the key input is detected (S1). . Here, if the key is off (S2),
The operation ends in that state. In the above case, only one step
It is reduced and displayed on the map.

Then, in step S13, the scale is reduced to 1
If the reduction display key is continuously pressed after the step reduction, the process goes to step S13 again, and if the reduction display key is continuously pressed after that, the second reduction is performed. In this process, if the scale is reduced to 1 / 100,000 (S12), even if the reduction display key is continuously pressed, the reduction is stopped and 1/100 is reduced.
A map is displayed at a scale of 100,000 (S21).

That is, 1/10 such as 1/1000
If you keep pressing the reduction display key when the scale is smaller than the scale of 10,000, the scale is temporarily stopped at the scale of 1 / 100,000.
It can be performed in one operation (that is, when you hold down the reduction display key, jump to the scale of 1 / 100,000 and display it, from the current scale to the scale of 1 / 100,000, (No need to repeatedly press the reduced display key many times), and after that, the number of operations required to adjust from a scale of 1 / 100,000 to a desired scale is usually small, so after all, It is easy to reduce and adjust the map displayed on the screen of the route guidance device from the current scale to a desired scale.

Especially when a detailed map is displayed,
In the case of displaying a desired area far away from the area of the displayed map, it is unclear how appropriate the reduced scale of the currently displayed map is. The reduction display key is pressed several times, and each time the key is pressed, the reduction degree is checked while checking the reduction degree of the screen. However, in the above embodiment, when the desired reduction degree is to be obtained, the reduction display is displayed. Since it is not necessary to press the key many times, it is possible to reduce the number of operations for checking the reduction degree while observing the reduction degree of the screen each time the key is pressed.

If the reduced scale reaches the upper limit (S11) while the reduced display key is held down, the map is displayed at the upper reduced scale (S21). If the key input is not the reduced display key (S3), another key process corresponding to the input key is executed (S4).

In the above embodiment, the scale of 1 / 100,000 is used as the specific scale, but a scale other than the scale of 1 / 100,000 may be set as the specific scale.

That is, in the above embodiment, the map display means for displaying a predetermined map, the reduction display key for reducing the map displayed on the map display means, and the map display means for displaying the map. A scale setting means for setting a specific scale that is a specific scale among a plurality of preset scales in the case, and among the plurality of scales set when the reduction display key is continuously pressed. so,
A route guide having display control means for gradually reducing the scale of the map displayed on the map display means, stopping the reduction of the scale when the map is displayed at the specific scale in the process, and displaying the map at the specific scale. It is a device.

In the above embodiment, the enlarged display key may be used instead of the reduced display key.

That is, 1/1 such as 1/10000
If you continue to press the enlargement display key in a state where the scale is larger than the scale of 0,000, the scale will be temporarily stopped at the scale of 1 / 100,000. It can be executed in one operation (that is, when the enlargement key is held down, the display jumps to a scale of 1 / 100,000, and when it is displayed, the scale from the current scale to 1 / 100,000 is reduced. , It is not necessary to repeatedly press the enlargement display key many times), and after that, the number of operations required to adjust from a scale of 1 / 100,000 to a desired scale is usually small. It is easy to enlarge and adjust the map displayed on the screen of the route guidance device from the current scale to a desired scale.

That is, paying attention to the point of enlarging the map, the modification of the above embodiment is such that the map display means for displaying a predetermined map and the enlarging display for enlarging the map displayed on the map display means. The key, the scale setting means for setting a specific scale which is a specific scale among a plurality of preset scales when the map is displayed on the map display means, and the enlargement display key are continuously pressed. At this time, among the plurality of scales set as described above, the scale of the map displayed on the map display means is gradually increased, and in this process, when the map is displayed at the specific scale, the increase of the scale is stopped. , A route guidance device having display control means for displaying at the specific scale.

In this case, the input device 1 is an example of an enlargement display key for enlarging and displaying the map displayed on the map display means, and a plurality of preset scales for displaying the map on the map display means. It is an example of a scale setting means for setting a specific scale which is a specific scale of the above. Also,
The route guidance device body 10 gradually increases the scale of the map displayed on the map display means among the plurality of scales set when the enlargement display key is continuously pressed. It is an example of a display control means for stopping the increase of the scale and displaying at the specific scale when the display is performed at the specific scale in the process.

[0033]

According to the first aspect of the invention, when the map displayed on the screen of the route guiding apparatus is reduced and adjusted to a desired scale, the adjustment work is easy.

According to the second aspect of the invention, when the map displayed on the screen of the route guidance device is enlarged and adjusted to a desired scale, the adjustment work is easy.

[Brief description of drawings]

FIG. 1 is a block diagram showing a route guidance device RN1 which is an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the above embodiment.

[Explanation of symbols]

RN1 ... Route guidance device, 1 ... input device, 2 ... monitor, 3 ... CD-ROM, 4 ... GPS receiver, 10 ... Route guidance device main body.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01C 21/00-21/36 G08G 1/0969 G09B 29/00-29/10

Claims (2)

(57) [Claims] 1. A map display means for displaying a predetermined map, a reduction display key for reducing the size of the map displayed on the map display means, and preset values for displaying the map on the map display means. A scale setting means for setting a specific scale that is a specific scale among the plurality of scales, and the map display among the plurality of scales set when the scale-down display key is continuously pressed. The map scale displayed on the means is gradually reduced, and in the process, when the map is displayed at the specific scale, the display control means for stopping the reduction of the scale and displaying the map at the specific scale is provided. Route guidance device. 2. A map display means for displaying a predetermined map, an enlargement display key for enlarging and displaying the map displayed on the map display means, and a preset for displaying the map on the map display means. Scale setting means for setting a specific scale that is a specific scale among the plurality of scales, and the map display among the plurality of scales set when the enlargement display key is continuously pressed. The map scale displayed on the means is gradually increased, and in this process, when the map is displayed at the specific scale, the display control means for stopping the increase of the scale and displaying the map at the specific scale is provided. Route guidance device.