JP3333024B2 - Navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to displays a map on a display device mounted on a vehicle, to a Luna navigation device to display the current position and the traveling direction of the vehicle on its map. In particular, the present invention, the scale of the map to be displayed on a display device so as to be automatically changed according to the vehicle speed, Ru can be displayed on the display unit the optimum size map for driving the vehicle the present invention relates to navigation devices.

[0002]

Indicator on the display a map provided in the driver's seat of an automobile, motor vehicle to display the traveling direction of the current position and automotive Luna navigation devices are known on that map. This navigation device, the driver to drive a car, and displays a map around the vehicle is currently running, to display the current position of the vehicle on the displayed map.

In such an apparatus, the map displayed on the display can be displayed by changing its scale. For example, if the scale is 1 / 800,000 of the maximum scale, a wide range map can be displayed on the display,
Further, if the minimum scale is set to 1/6500, a map displayed in detail can be displayed on the display. Further, an appropriate number of scales between the maximum scale and the minimum scale are provided so that a map of a scale desired by the driver can be displayed.

[0004] By displaying maps of a plurality of scales on the display in this way, the driver can select and display the map of the optimum scale according to the situation. In the conventional apparatus, when changing the scale, the driver operates a switch or the like to change the scale of the map.

[0005]

When the scale of the map is switched by operating the switches as described above, the driver operates the switches and the like while driving. However, it is not preferable from the viewpoint of safety that the driver performs an operation other than the driving operation during driving. Further, performing the operation itself is troublesome for the driver.

[0006] The present invention is, in the navigation apparatus,
The scale of the map displayed on the display is automatically changed to the optimal scale that is most visible to the driver, and the operation of the driver for changing the scale of the map is not required, so that comfortable driving can be performed. It is intended to do so.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a display for displaying a map and a current position of a vehicle.
In a navigation device equipped with
Registration means for registering a scale to be performed, and
The map is displayed on a scale different from the scale displayed.
When the predetermined condition is satisfied, the registered compression
Control to switch to the shaku map and display it on the display
Control means.

[0008]

[Action] is for the driver to use the navigation system, usually, when the speed of the vehicle is fast, it is necessary to map that displays a wide range than the detailed view of the map. Also,
When the vehicle speed is low or the vehicle is stopped, a map over a wide area is not required, but a map in which the vicinity of the current position of the vehicle is displayed in detail is required.

[0009] The control means, when a predetermined condition is satisfied
Displays the map on the display at the scale registered in advance by the user.
indicate. Therefore, a map having a size optimal for the driver and corresponding to the predetermined condition is displayed on the display.
For example, a map of a scale corresponding to the speed of the vehicle is displayed on the display
Is done. In addition, since the scale is automatically changed, the driver can concentrate on the driving operation and improve safety.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a location and navigation device according to an embodiment of the present invention. The location processing unit 1 is configured by, for example, a GPS, and calculates and processes a position, a speed, a direction, and the like of the vehicle, and outputs these to a display processing unit 2 that performs map and vehicle display processing.

The display processor 2 reads a map corresponding to the position of the vehicle from the map database 3. The map database 3 includes a CDROM or an IC card storing map data. The display processing unit 2 includes a map database 3
Is displayed on the display 4 at an appropriate scale. As the scale of this map, for example, 1 / 800,000, 1
/ 400,000, 1/200000, 1 / 100,000, 1 / 50,000, 1/2
Eight types of 5000, 1 / 12,500 and 1/6500 are prepared.

The display processing unit 2 also displays the current position of the vehicle and the traveling direction on the map displayed on the display 4. Since the display of the current position can be performed by a conventionally known method, description thereof is omitted here. In this embodiment, a determination unit 5 to which the output of the location processing unit 1 is input is provided. The determination unit 5 detects the vehicle speed from the signal of the location processing unit 1, determines the scale of the map corresponding to the vehicle speed, and outputs a scale signal to the display processing unit 2. The determination unit 5 can obtain the vehicle speed from a speedometer provided on the vehicle, instead of determining the vehicle speed from the signal from the location processing unit 1.

The determination unit 5 sets the reference speed at 20 km / h, the high speed above, and the low speed below, and sets the scale of the map displayed on the display 4 at high speed to 1/25000 of the high scale. 1/6500 of the low scale. The display processing unit 2 displays the display 4 based on the scale determined by the determination unit 5.
Display the map on. These numerical values can be changed as appropriate. Also, the number of switching speeds of the vehicle speed and the scale is not limited to two, but may be three or more.

FIG. 2 shows a map when the vehicle is traveling at a high speed, and FIG. 3 shows a map displayed when the vehicle is traveling at a low speed. In each figure, reference numeral 11 denotes a vehicle position, 1
2 indicates the traveling direction of the vehicle, 13 indicates the scale, and 14 indicates the azimuth.
When the vehicle is traveling at high speed, as shown in FIG.
A large scale map is displayed on the display 4 at a high scale. When the vehicle is running or stopping at a low speed, the map displayed on the display 4 is a detailed map at a low scale as shown in FIG.

Next, the operation of this embodiment will be described in detail with reference to the drawings. FIG. 4 is a flowchart showing an operation of automatically switching the scale of the map displayed on the display 4. First, in step S11, a map of an appropriate scale is displayed on the display unit 4.
Will be displayed. If the automatic mode has not been selected, step S12 or step S13, step S13
The process proceeds to step S22 via 21 and the vehicle position is drawn on the map.

When the automatic mode is selected, the process proceeds to step S14, where the vehicle speed SpC is compared with a map switching speed SpD (20 km / h in this example) which is a reference for switching the scale of the map. If the own vehicle traveling speed SpC is lower than the map switching speed SpD (Y), step S
15 and the vehicle traveling speed SpC becomes the map switching speed SpD.
If the speed is higher (N), the process proceeds to step S18.

In step S15, the scale MapN of the currently displayed map is compared with the low-speed map scale MapD (1/6500 in this example). If the scale MapN of the currently displayed map is the low-speed map scale MapD (Y), the process proceeds to step S22, and the vehicle position is drawn on the map without changing the scale of the map. Step S1
If the map MapN currently displayed at step S5 is not the low-speed map scale MapD (N), then at step S16, the map MapN of the currently displayed map is changed to the low-speed map scale Ma.
In step S17, the map displayed on the display 4 is redrawn using the low-speed map scale MapD, and the process proceeds to step S22.

In step S18, the scale MapN of the currently displayed map is compared with the high-speed map scale MapU (1/25000 in this example). If the scale MapN of the currently displayed map is the high-speed map scale MapU (Y), the process proceeds to step S22, and the vehicle position is drawn on the map without changing the scale of the map. Step S1
In step S19, if the map MapN currently displayed on the map 8 is not the high-speed map scale MapN (N), the map MapN currently displayed on the map is changed to the high-speed map scale Ma in step S19.
In step S20, the map displayed on the display 4 is redrawn using the high-speed map scale MapU, and the process proceeds to step S22.

In step S22, the vehicle position and the traveling direction are displayed on the map displayed on the display 4 by the operation described above. The map switching speed SpD, the high-speed map scale MapU in the scale automatic switching operation described above,
Parameters such as the low-speed map scale MapD are set in advance by the user.
Register settings. The procedure for setting these parameters will be described with reference to the drawings.

FIG. 5 is a flowchart for explaining the operation of the automatic scale switching setting process. When the switch for performing the setting process is turned on in step S31, the setting screen 15 shown in FIG. This screen 15
At the top, a plurality of scales are displayed side by side in the items of “normal” and “enlarged”. In the item of "switching speed", a scale of vehicle speed of 10 to 50 km / h is displayed. When selecting desired numerical values for these items, each numerical value is selected by moving a cursor with a mouse and performing a button operation. Note that a touch switch may be used instead of the mouse.

When setting the high-speed map scale MapU,
A desired value of the scale of the item of "normal" is selected. When setting the low-speed map scale MapD, a desired value of the scale of the item of “enlargement” is selected. When setting the map switching speed SpD, the cursor of the item of "switching speed" is set to a desired hourly speed. When the cursor position is selected as described above, and “SETTING” is selected and a button operation is performed, an updated value is input to each parameter according to the flowchart of FIG.

[0022]

According to the present invention, in the location and navigation device, the scale of the map displayed on the display is automatically changed, and the operation for changing the scale of the map is not required, thereby providing a comfortable operation. You can drive a car.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a map displayed during high-speed running of the vehicle according to the embodiment of the present invention.

FIG. 3 is a map displayed when the vehicle is running at a low speed according to the embodiment of the present invention.

FIG. 4 is a flowchart for explaining the operation of the embodiment of the present invention.

FIG. 5 is a flowchart illustrating an operation at the time of setting according to the embodiment of the present invention.

FIG. 6 is a diagram showing a screen of the display device in operation of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Location processing part 2 ... Display processing part 3 ... Map database 4 ... Display 5 ... Judgment part 11 ... Vehicle position 12 ... Vehicle traveling direction 13 ... Scale 14 ... Azimuth 15 ... Setting screen

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-225676 (JP, A) JP-A-58-182683 (JP, A) JP-A-5-35183 (JP, A) JP-A-4- 365090 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00-21/36 G08G 1/0969 G09B 29/00-29/10

Claims (6)

(57) [Claims] 1. A display for displaying a map and a current position of a vehicle.
Registration means for registering a scale desired by a user, and a map having a scale different from the scale registered on the display device.
Is displayed and when the predetermined condition is satisfied
Switch to the registered scale map and display the display
Control means for controlling the display to be displayed on the navigation device. 2. The vehicle according to claim 1, wherein the predetermined condition is a vehicle speed.
The control means is configured to register the registered information according to a speed of the vehicle.
2. A display which is switched to a reduced-scale map and displayed on the display.
The navigation device according to claim 1. 3. The vehicle according to claim 1, wherein the predetermined condition is a vehicle speed.
The control means controls the climb when the speed of the vehicle is equal to or less than a predetermined value.
A contract to switch the recorded scale map to the display
The navigation device according to claim 1. 4. The vehicle according to claim 1, wherein the predetermined condition is a vehicle speed.
The control means determines that the vehicle speed is equal to or higher than a predetermined value.
The navigation device according to claim 1. 5. An operator who sets the vehicle speed by a user.
A nacelle according to any one of claims 2 or 4, comprising a step.
Navigation device. 6. The predetermined condition is that the vehicle is stopped.
The control means controls the reduction registered by the user when the vehicle stops.
2. The navigation according to claim 1, wherein the display is switched to a map display of a shaku.
Device.