JP2002022465A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigator capable of easily finding the distance and the direction to a point remote at the end of scrolling. SOLUTION: A right screen is scrolled until an own vehicle mark 31 (current point of own vehicle) disappears. Then an indication scale on a right screen is changed so that both the own vehicle mark 31 and the center position (cross mark 33) on the scrolled right screen appear on the right screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device mounted on a vehicle for guiding the route of the vehicle to a destination.

[0002]

2. Description of the Related Art Recently, navigation devices are mounted on many vehicles. This navigation device searches for a route to an input destination and uses a GPS
(Global Positioning System
m) The current position of the vehicle is measured by a receiving unit or the like, and a map showing the mark indicating the current position of the vehicle and the route is displayed on the screen of the display unit to guide the route of the vehicle to the destination. I do. At this time, it is also practiced to divide the screen of the display unit into a plurality of screens and perform different scale display, map orientation, 2D / 3D display, and the like. FIG. 6 shows a case where the screen 11 of the display unit is divided into two parts left and right to display different scales (a left screen is a 1 km scale display, a right screen is a 200 m scale display), and is indicated by a black arrow 12 on the right screen. Scrolling is performed in the diagonally upper right direction. The cross mark 13 shown in the circle of the plurality of arrows indicating the scroll direction indicates the center position of the scrolling screen. The plurality of arrows indicating the scroll direction is a touch panel operation unit. When one desired arrow is touched with a finger, the arrow changes to black and the scroll is performed in the direction indicated by the arrow. The left screen of FIG. 6 is not scrolled, and the current position of the vehicle is indicated by the own vehicle mark 14.

[0003]

By the way, recently, the drawing speed of the navigation device has been improved, and the speed has been further increased. The question that came up was where did you scroll when you scrolled the map? In which direction did you scroll? Etc. become unknown. Conversely, speeding up may be a dissatisfaction factor for users.

[0004] The present invention has been made in view of the above points,
It is a first object of the present invention to provide a navigation device capable of easily grasping a distance and a direction to a scroll destination.

It is a second object of the present invention to provide a navigation device which can easily grasp the distance and direction to a desired point such as a home or an arbitrary point, instead of a scroll destination.

[0006]

According to a first navigation device of the present invention, a screen of a display unit is divided into two parts, scrolling is performed on the first divided screen, and a first divided screen is displayed on the first divided screen. When the specific point disappears, the second specific point, which is the center position of the scrolled first divided screen, and the second specific point are both displayed on the second divided screen. The display scale of the split screen is changed.

In the second navigation device of the present invention, a desired point reference mode is set in a state where the screen of the display section is divided into two, and when the desired point is located outside the screen of the display section, the first navigation section of the display section. The display scale of the second divided screen is changed such that the desired point is displayed on the second divided screen of the display unit in addition to the first point displayed on the divided screen. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a navigation device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 is a block diagram showing an embodiment of the navigation device of the present invention. This navigation device is S
RAM 21, ROM 22, CPU 23, interface 24, touch panel and display unit 25, speaker 26, GPS receiving unit 27, vehicle speed pulse generating unit 28
And mounted on a vehicle (not shown).

The SRAM 21 stores various information such as time information and a measured current position of the vehicle. The ROM 22 is composed of a CD-ROM or a DVD-ROM, and stores map information of each place. The CPU 23 is connected to the SRAM 21 and the ROM 22, and further has a touch panel and a display unit 25, a speaker 26, a G
It is connected to the PS receiving unit 27 and the vehicle speed pulse generating unit 28, and controls the entire navigation device. The interface 24 connects the CPU 23 with the touch panel and the display unit 25, the speaker 26, the GPS receiving unit 27, and the vehicle speed pulse generating unit 28. Touch panel and display unit 25
Is composed of a color LCD display unit and a touch panel formed on the screen. While the touch panel is used to input various information, the map information read from the ROM 22 and the SRA
Various information read from M21 is displayed on the screen of the color LCD display unit. The speaker 26 reproduces a voice during voice guidance and generates an alarm sound and the like. The GPS receiver 27 receives a transmission radio wave from a GPS artificial satellite in order to measure the current position of the vehicle. The vehicle speed pulse generator 28 generates a vehicle speed pulse to measure the current position of the vehicle. The current position of the vehicle is measured by the CPU 23 based on the vehicle speed pulse and the data from the GPS receiving unit 27.

In the navigation device configured as described above, when a destination is input on the touch panel and the display unit 25, a route to the input destination is displayed by the CPU 2.
3, the current position of the vehicle is measured by the CPU 23 based on data from the GPS receiving unit 27, etc., and a map indicating the measured current position of the vehicle (hereinafter referred to as own vehicle mark) and a route are displayed. The information is displayed on the screen of the touch panel and the display unit 25 to guide the route of the vehicle to the destination.

At this time, the touch panel and the display unit 25
As shown in FIG. 1 (a), a screen 25a of a display (hereinafter simply referred to as a display unit) is divided into two sides, and a map showing the vehicle mark 31 and a route is displayed on both the left screen and the right screen. Can be. Moreover, for example, on the right screen, FIG.
The screen can be scrolled as shown in FIG. In the right screen of FIG. 1B, the screen is scrolled diagonally right upward as indicated by the black arrow 32, and the center position of the scrolled screen is indicated by a cross mark 33.

When this scrolling is performed, the own vehicle mark 31 displayed before scrolling as shown on the right screen of FIG. 1A changes as the screen moves as shown on the right screen of FIG. 1B. It disappears from the right screen. Then, in the navigation device of the present invention, as shown in the left screen of FIG. 1B, the display scale of the left screen that is not scrolled is changed to be large (for example, from the 200 m display scale to the 1 km display scale). Since the display area of the left screen is enlarged, both the vehicle mark 31 and the center position of the scrolled right screen (indicated by the cross mark 33) are displayed on the left screen. State. As a result, according to the navigation device of the present invention, the distance and direction from the current position of the vehicle indicated by the vehicle mark 31 to the scroll destination (cross mark 33) viewed from the current position can be easily grasped on the left screen. In addition, if the own vehicle mark 31 disappears from the left screen in the changed current display scale as a result of scrolling being performed a plurality of times continuously on the right screen and the scroll distance is increased, the display scale of the left screen is further changed. Both the vehicle mark 31 and the center position of the scrolled right screen (cross mark 33) are always displayed on the left screen.

The above screen display method will be described in more detail with reference to the flowchart of FIG. After turning on an interlocking scroll setting that changes the display scale of the left screen in conjunction with the scrolling of the right screen (step S1), when scrolling of the right screen is started (step S2), it is determined whether scrolling is in progress (step S3). ), It is determined whether the current position (own vehicle mark) is outside the right screen (step S4). If it is determined that the current point is outside the screen on the right screen, a step of determining whether the screen of the display unit 25 is one screen (step S5) and a step of dividing the screen if it is one screen (step S6) ), The display scale of the left screen is changed (step S7).
As a result of this display scale change, it is determined whether or not the current position (own vehicle mark) together with the center position of the scrolled right screen is within the screen of the left screen (step S8). (Step S
9) The center position (cross mark) of the scrolled right screen and the current position (own vehicle mark) are displayed on the left screen (step S10).

FIG. 4 shows a screen display on the display unit 25 and is a diagram for explaining a second embodiment of the present invention. In the second embodiment, the screen 25a of the display unit 25 is horizontally
In the divided state, the home reference mode is set. At that time, the home position is outside the display screen of the display unit 25 and the screen 25 of the display unit 25 is displayed.
a, the display scale of the left screen is changed (for example, the display scale is changed from 200 m display scale to 1 km display scale), and the display area of the left screen is enlarged. The home position (home mark 34) not displayed on the right screen is displayed together with the current position of the displayed vehicle (own vehicle mark 31). Thereby, the distance and direction from the current position of the vehicle indicated by the own vehicle mark 31 to the home as viewed from the current position can be easily grasped on the left screen.

The display operation in the home reference mode will be described in detail with reference to the flowchart of FIG. When the home reference mode is turned on in step S11, it is determined whether the home position is outside the screen of the display unit 25 in step S12. Then, when it is determined in step S12 that the home position is outside the screen of the display unit 25, a step of determining whether the screen of the display unit 25 is one screen (step S13), and if the screen is one screen, the screen is divided. After the step (step S14), the display scale of the left screen is changed (step S15). Then, as a result of the change of the display scale, it is determined whether or not the home position together with the current position of the vehicle (own vehicle mark) is included in the left screen (Step S).
16) If it is possible to enter, the own vehicle mark (current position) and the home mark (home position) are displayed on the left screen (step S17).

FIG. 5 shows a screen display on the display unit 25 and is a diagram for explaining a third embodiment of the present invention. In the third embodiment, when the arbitrary point is not displayed on the screen 25a of the display unit 25 outside the screen of the display unit 25 in the mode of referring to the arbitrary point instead of the home, the display scale of the left screen is changed. (For example, 1k from 200m display scale)
m is changed to a display scale of m), and the display area of the left screen is enlarged, so that the current position (own vehicle mark 31) of the vehicle displayed on the right screen is displayed on the right screen. An arbitrary point (magnifying glass mark 35) that is not present is displayed. As a result, the distance and direction from the current position of the vehicle indicated by the own vehicle mark 31 to an arbitrary point viewed from the current position can be easily grasped on the left screen.

The detailed display operation in the arbitrary point reference mode is the same as that in steps S11 to S17 in FIG.

In the second and third embodiments shown in FIGS. 4 and 5, the display scale of the right screen can be changed to display both the current position and the home position or an arbitrary position on the right screen. Similarly, in the first embodiment of FIG. 1, scrolling the left screen, changing the display scale to the right screen, and displaying both the own vehicle mark and the center position of the scrolled left screen. Can be.
Further, in the first to third embodiments, the current location of the vehicle can be another specific location.

[0019]

As described in detail above, according to the navigation apparatus of the present invention, the distance and direction to a scroll destination or a desired point such as a home or an arbitrary point can be easily grasped.

[Brief description of the drawings]

FIG. 1 is a view showing a screen display of a display unit and explaining an operation of a first embodiment of the present invention.

FIG. 2 is a block diagram showing an embodiment of the navigation device of the present invention.

FIG. 3 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 4 is a diagram showing a screen display on a display unit and explaining the operation of the second embodiment of the present invention.

FIG. 5 is a diagram showing a screen display on a display unit and explaining the operation of the third embodiment of the present invention.

FIG. 6 is a diagram showing an example of a screen display of a conventional display unit.

[Explanation of symbols]

25a Screen of display unit 31 Own vehicle mark 32 Arrow indicating scroll direction 33 Cross mark (center position of scrolled right screen)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09B 29/10 G09B 29/10 A G09G 5/14 G09G 5/14 Z 5/34 5/34 A 5 / 36 510 5/36 510B 520E F-term (reference) 2C032 HC08 HC25 HC26 HD03 2F029 AA02 AB07 AC02 AC14 5C082 AA12 AA24 BA16 BA27 CA02 CA32 CA62 CA72 CA81 CB05 MM10 5H180 AA01 FF05 FF23 FF25 FF27 FF32 FF32 FF32 FF32 FF32

Claims (2)

[Claims] 1. A screen of a display unit is divided into two parts, scrolling is performed on a first divided screen, and when a first specific point disappears from the first divided screen, the scrolled first divided screen is displayed. Wherein the display scale of the second divided screen is changed such that both the second specific point and the first specific point, which are the center positions of the second divided screen, are displayed on the second divided screen. apparatus. 2. A desired point reference mode is set in a state where the screen of the display unit is divided into two, and when the desired point is located outside the screen of the display unit, a second divided screen displayed on the first divided screen of the display unit is displayed. A navigation device, wherein the display scale of the second divided screen is changed so that the desired point is displayed on the second divided screen of the display unit in addition to the first point.