JP2000172172A - Navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation system capable of realizing the more precise display movement of a map without giving unpleasantness to an operator. SOLUTION: This navigation system is provided with a touch switch means and a display movement function for detecting a touch-inputted point in a map display state and scrolling the point in the center of a display screen. A grid display signal is outputted with touch input against the display screen in the map display state. A grid corresponding to the resolution of the touch switch means is displayed on the display screen with the output of the grid display signal. A map enlargement function which enlarges/displays the map at the periphery of an intersection with touch input continuing for prescribed time at the intersection position of the grid is installed. A center display function for scrolling the center position of two points in the center of the display screen by simultaneously touching/inputting the intersection positions of the two adjacent points in the grid is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a navigation system mainly mounted on a vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, there is an in-vehicle navigation system for displaying a map and the position of a vehicle on a display screen of a display. Map data stored in a storage device such as a CD-ROM is read as required and requested. The display area to be displayed is appropriately selected and displayed.

In recent years, in order to improve usability,
A touch switch is provided on the display screen, and by directly touching a desired position of the map displayed on the display screen, a designated point is scrolled to the center of the display screen or the map is enlarged or reduced. -Style navigation systems have appeared.

For example, in a navigation system disclosed in Japanese Patent Application Laid-Open No. 5-241506, a storage device storing map data, auxiliary storage means for reading and storing map data from the storage device, and map data from the auxiliary storage means. Having a display scale changing function of moving a display area or enlarging or reducing map data in response to a touch input by the touch switch means provided on a display device of the display device, a display device for reading and displaying the data. Means, a direction sensor, a distance sensor, and the like, and a touch input to the touch switch means scrolls a desired position on the display map to the center of the display screen, continuously scrolls the map screen in a desired direction, It is a method that can perform enlargement and reduction.

FIG. 4 shows a touch switch means.
As shown in FIG. 2, a plurality of conductive wires 1 and 2 made of a transparent resistive film on two transparent polyester sheets are arranged in a grid pattern (vertically and horizontally) on the front side of a display device 3 such as a liquid crystal display. ), When touched with a fingertip, one of the conducting wires 1 and 2 arranged vertically and horizontally is in contact with each other and is electrically connected, and the touched position is detected by identifying the contact point. A plurality of light-emitting elements (light-emitting diodes) 5 and light-receiving elements (phototransistors) 6 are opposed to each other as in an infrared beam type as shown in FIG. An infrared beam is configured to run on the display device 3 when touching the front surface of the display device 3 with a fingertip. The infrared beam is cut off, and the position of the touch is detected by identifying the cut-off beam. It has been.

[0006]

According to a navigation system having a structure in which a desired position on a display map is scrolled to the center of a display screen by touch input as disclosed in the above-mentioned conventional publication, as shown in FIG. When the user wants to scroll the point A on the map displayed on the display screen 8 to the center of the display screen 8, the user touches the position of the point A on the display screen 8 with a finger to perform touch input.

However, if the position of the point A matches the position detected by the touch switch means due to the resolution of the touch switch means, the position of the point A is scrolled to the center of the display screen 8; As shown in the drawing, when the intersection point of the vertical and horizontal detection lines 9 and 10 corresponding to the resolution of the touch switch means, that is, the respective detection positions of the touch switch means are misaligned, for example, A
Even when the point position is touch-input, it is determined that the touch input is the point B position, and the point B position is scrolled to the center of the display screen 8, and the desired position is not scrolled to the center of the display screen 8, and May be uncomfortable.

It is an object of the present invention to provide a navigation system capable of displaying and moving a map with higher accuracy without causing discomfort to an operator.

[0009]

The technical means for solving the above problems includes a touch switch means and detects a point touch-input in a map display state.
In a navigation system having a display movement function of scrolling the point to the center of the display screen, a grid corresponding to the resolution of the touch switch means is displayed on the display screen by outputting a grid display signal.

[0010] Further, the grid display signal may be output by a touch input on a display screen in a map display state.

Further, a structure may be provided which has a map enlargement function for enlarging and displaying a map around the intersection position by a touch input (hereinafter referred to as a long-press touch input) for a predetermined time at the intersection position of the grid.

Further, a structure may be provided having a center display function in which the center point of the two points is scrolled to the center of the display screen by simultaneously touch-inputting the intersection points of two adjacent points on the grid. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 2 is a schematic block diagram showing a storage means 20 such as a CD-ROM storing map data as in the prior art. , Auxiliary storage means 21 for reading and storing map data from storage means 20, auxiliary storage means 21
Display means 22 comprising a liquid crystal display or the like for reading and displaying map data from
a touch switch means 23 provided on a, a control means 24 for moving a display area or enlarging map data in response to a touch input or the like by the touch switch means 23, a direction sensor 25 for detecting a running direction of the vehicle, It has a structure including a distance sensor 26 and the like for detecting a traveling distance.

In the present embodiment, the control means 24 controls the display means 22 to output a grid display signal in response to a first touch input on the display screen 22a in the map display state. Depending on the output of the signal, as shown in FIG.
The grid 28 corresponding to the vertical and horizontal detection lines corresponding to the resolution of the touch switch means 23 is controlled to be displayed on the display screen 22a.

The control means 24 detects a point touch-input in the map display state of the display means 22, that is, an intersection point of the grid 28, and displays the point on the display screen 22.
A display movement function for scrolling to the center of a is provided, and a long press touch input that continues for a predetermined time (for example, 3 seconds or more) of the touch input is detected, and a map around the touch input position, that is, a map around the intersection of the grid 28 is provided. It has a map enlargement function to enlarge the display.

Further, the control means 24 simultaneously touch-inputs the intersections of two points adjacent to each other on the grid 28, thereby displaying the center point of the two points on the display screen 22.
It also has a center display function to scroll to the center of a.

Next, the control operation of the navigation system according to the present embodiment will be described with reference to the flowchart of FIG.

That is, on the display screen 22a of the display means 22,
In the map display state where the map is displayed as shown in FIG. 6 (step S1), it is determined whether a touch input has been performed on the display screen 22a (step S2), and it is determined that the touch input has not been performed. Returns to step S1 to maintain the current normal map display state.

If it is determined in step S2 that a touch input has been made, the grid 28 is displayed on the display screen 22a in a state superimposed on the map display as shown in FIG. 3 by outputting a grid display signal. (Step S3).

Then, it is determined whether or not a touch input has been performed on the display screen 22a within a preset time, for example, within 5 seconds (step S4). If it is determined that no touch input has been performed, the grid 28 is determined. After the erasure (step S5), the process returns to step S1 to return to the normal map display state where the grid 28 is not displayed.

If it is determined in step S4 that a touch input has been made, the process proceeds to step S6, where it is determined whether the touch input is at one intersection point of the grid 28.

If it is determined that the touch input is one point at the intersection of the grid 28, the process proceeds to step S7, where it is determined whether the touch input is a long press for a predetermined time or longer. If so, the map around the intersection position is enlarged and displayed (step S8), and the process returns to step S3.

In step S7, if the touch input is not a long press, the intersection of the touched grid 28 is scrolled to the center of the display screen 22a (step S9), and the process returns to step S3.

If it is determined in step S6 that the touch input is not at one intersection point of the grid 28, the process proceeds to step S10, where it is determined whether the touch input is at two adjacent intersection positions. Otherwise, the process returns to step S3.

If the touch input is two adjacent intersection points, the center of the two intersection points is scrolled to the center of the display screen 22a (step S11), and the process returns to step S3. .

The normal enlargement / reduction of the map displayed on the display screen 22a is performed by the display screen 22 of the display means 22.
By pressing an enlargement / reduction key arranged around a in a desired direction, the display is gradually enlarged or reduced. Note that a method may be used in which an enlargement / reduction screen is displayed by operating a function key arranged around the display screen 22a, and an enlargement / reduction operation is performed by touch input.

An enter key (set key) is provided around the display screen 22a so that the destination can be called at a predetermined position and the destination can be set by pressing the enter key. Note that a method may be used in which an enter key is displayed on the display screen 22a and set by touch input.

The present embodiment is configured as described above. When the operator performs point setting such as destination setting,
The grid 28 is displayed on the display screen 22a by the first touch input, and the subsequent touch input is performed in a state where the grid 28 is displayed. Since the scrolling is recognized in advance by the operator, the intersection of the destination and the grid 28 does not match, and discomfort is given even if the destination is not scrolled to the center of the display screen 22a. In addition, by recognizing the intersection point of the grid 28, the map can be efficiently scrolled as desired, and the display movement of the map can be performed with higher accuracy.

Further, the grid display signal is output by a touch input on the display screen 22a in the map display state, and there is an advantage that operability can be improved.

Further, the destination can be more efficiently scrolled to the center position of the display screen 22a by the map enlargement function by the long press touch input and the center display function by the simultaneous touch input of the intersection points of two adjacent points on the grid 28. From this point, the display movement of the map can be performed with higher accuracy, the point can be set with higher accuracy, and the operability at the time of setting the point can be improved.

In the above embodiment, the grid display signal is output by touch input on the display screen 22a in the map display state. However, a grid display signal output key is separately provided around the display screen 22a.
A method of displaying or not displaying the grid 28 by ON / OFF operation of the key may be used.

[0032]

As described above, according to the navigation system of the present invention, the grid corresponding to the resolution of the touch switch means is displayed on the display screen by outputting the grid display signal. By performing a touch input in a state where the touch screen is scrolled, the point scrolled to the center of the display screen is recognized by the operator in advance, so that even if the destination is not scrolled to the center of the display screen, no discomfort is given. There is an advantage that the operation can be performed and the map can be efficiently scrolled as desired by recognizing the intersection point of the grid, and the display movement of the map can be performed with higher accuracy.

If the grid display signal is output by touch input on the display screen in the map display state, there is an advantage that operability can be improved.

Further, by a long press touch input at the intersection point of the grid, a structure having a map enlargement function for enlarging and displaying a map around the intersection point, and an intersection point of two adjacent points on the grid are simultaneously touch-input. Thereby, by adopting a structure having a center display function in which the two center points are scrolled to the center of the display screen, the destination can be more efficiently scrolled to the center position of the display screen, From this point, there is an advantage that the display movement of the map can be performed with higher accuracy, the point can be set with higher accuracy, and the operability at the time of setting the point can be improved.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a control operation according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a schematic configuration of the embodiment.

FIG. 3 is an explanatory diagram showing an example of the display screen.

FIG. 4 is a perspective view showing an example of a touch switch means.

FIG. 5 is a perspective view showing an example of a touch switch means.

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

FIG. 7 is an enlarged explanatory view of the main part.

[Explanation of symbols]

 Reference Signs List 20 storage means 21 auxiliary storage means 22 display means 22a display screen 23 touch switch means 24 control means 28 grid

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masakatsu Moriguchi 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 2C032 HC14 HC24 HC25 HC27 2F029 AA02 AB01 AC02 AC04 AC06 AC14 AC19 5H180 AA01 BB13 FF04 FF22 FF27 FF33 9A001 DD13 HH28 JJ77 KK56

Claims (4)

[Claims] 1. A navigation system comprising a touch switch means and a display movement function for detecting a point touch-input in a map display state and scrolling the point to the center of a display screen. A navigation system wherein a grid corresponding to the resolution of the touch switch means is displayed on a display screen by the output. 2. The navigation system according to claim 1, wherein the grid display signal is output by a touch input on a display screen in a map display state. 3. The navigation system according to claim 2, further comprising a map enlargement function for enlarging and displaying a map around the intersection position by touch input for a predetermined time at the intersection position of the grid. 4. The two adjacent grids in the grid
4. A center display function wherein a center point of the two points is scrolled to the center of the display screen by simultaneously touch-inputting the intersection points of the points.
Navigation system as described.