JPH07210137A - Picture display controller in navigation - Google Patents

Abstract

PURPOSE:To facilitate the adjustment and to shorten the time required for operation by scrolling a picture so that a position detected by a touch senser becomes the center of the picture. CONSTITUTION:This device is provided with a CD-ROM l, a display control part 20 connected to the ROM 1, a display device 30 displaying the picture scrolled by the control part 20 and the touch senser 40 provided on the display. device 30. The touch sensor 40 is a device detecting that a user touches to the picture of the display device 30, and any position on the picture is touched, and utilizes e.g. an photosenser, a pressure senser. Then, when the position of the picture required to make the center is touched directly by a finger, the picture is switched instantly so that the position detected by the touch senser 40 becomes the center of the picture, and the picture is scrolled. Thus, an operation time is shortened, and the operation is simplified, and finished once surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation system which detects the current position of a vehicle, which is a moving body, and informs an occupant where on the map the vehicle is traveling.

[0002]

2. Description of the Related Art Conventionally, as a technique in such a field, there is a screen display control device used for navigation.
This screen display device has a scroll function of moving a screen for displaying a traveling area up and down and left and right. This will be described in detail below. FIG. 17 is a diagram for explaining screen scrolling in conventional navigation. As shown in the book (a), the navigation is a CD-ROM (Compact Disc-Read Only Memor) that stores attribute data such as road map data, road names, and landmarks drawn on the screen.
y) 1 is provided. The display control unit 2 connected to the CD-ROM 1 has a RAM (Random Access Memory) for controlling the data read from the CD-ROM 1 to be developed, recorded and displayed. In order to facilitate scrolling, the data expanded in the display control unit 2 has a wider range than the data displayed on the screen of the display unit 3 described later. The display unit 3 connected to the display control unit 2 is, for example, a CRT (Cathode Ray Tube) for displaying data of a specific portion from the display control unit 2. The movement button 4 connected to the display control unit 2 moves the screen displayed on the display unit 3 up and down, left and right, and instructs the display control unit 2 to switch and move the specific portion. .

As shown in FIG. 1B, the display control unit 2 can scroll to display a portion that is not displayed on the screen. That is, it is possible to scroll one line in the vertical direction to display the front and back portions that are not displayed, and scroll one digit in the horizontal direction to display the left and right portions that are not displayed. Also, as shown in this figure (b), the screen is slanted by scrolling one line in the vertical direction, one digit in the horizontal direction, one line in the vertical direction, one digit in the horizontal direction, and so on. Can be moved to.

As shown in the figures (c), (i) and (ii),
The move button 4 is made up of four types of up and down and left and right arrow buttons. As shown in this figure (b), in order to move the screen diagonally upward to the right, it is possible to press the button with the upward arrow and the button with the rightward arrow at the same time.
Although not shown, the move button 4 has eight types of buttons including a rightward diagonal upward direction button, a rightward diagonal downward direction button, a leftward diagonal upward direction button, and four types of leftward diagonal downward direction buttons. is there.

[0005]

By the way, according to the screen display control device in the above navigation, the map on the screen is scrolled by pushing the buttons in four directions (up, down, left and right). For example, when it is desired to see a map centered on a certain point on the map, eight types of buttons are continuously pressed and scrolled.
In this case, there is a problem that adjustment is difficult and operation takes time.

Accordingly, the present invention has been made in view of the above problems.
An object of the present invention is to provide a screen display control device for navigation that is easy to adjust and does not take a long time to operate.

[0007]

In order to solve the above problems, the present invention detects the position of a touched screen in a screen display control device in navigation having a scroll function for a screen displayed on a display. Therefore, a touch sensor is provided on the display. The screen is scrolled so that the position detected by the touch sensor becomes the center of the screen.

The trajectory of the screen traced by continuous contact is detected, the screen is scrolled according to the trajectory, and
The screen may be scrolled according to the direction of the trajectory and the pressure on the screen.

[0009]

According to the screen display control device in the navigation of the present invention, when the position of the screen to be centered is directly touched with the finger, the screen is instantly switched so that the position detected by the touch sensor becomes the center of the screen. Instead, the screen is scrolled. Therefore, the operation time is shortened, the operation is simplified, and the operation can be surely performed once. Detects the trace of the screen traced by continuous contact, scrolls the screen according to this trace, and further scrolls the screen according to the direction of the trace and the pressure on the screen, such as the direction and range of scrolling. However, it can be adjusted as the user likes, the operation is simple, the operation time is shortened, and the operation can be performed sensuously.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a screen display control device in navigation according to an embodiment of the present invention. As shown in this figure, the screen display control device in navigation is
A CD-ROM 1, a display control unit 20 connected to the CD-ROM 1, a display unit 30 for displaying a screen scrolled by the display control unit 20, and a touch sensor 40 provided on the display unit 30. Prepare This touch sensor 4
0 is for detecting whether the user touches the screen of the display unit 30 and which position on the screen is touched. For example, the existing optical sensor or pressure sensor may be used for this.

FIG. 2 is a diagram showing functional blocks of the display control unit 20 of FIG. As shown in this figure, the display controller 20
Is provided with a storage unit 21 composed of a RAM for reading out, developing, and recording a certain amount of data from the CD-ROM 1. The control unit 22 controls the storage in the storage unit 21 and controls the display unit 30 to display the data of a specific portion of the stored data. The coordinate conversion unit 23 that inputs the display coordinate data of the display 40 from the touch sensor 40 is
The display coordinates of is converted into the coordinates of the recording unit 21. The screen switching unit 24 that has input the converted coordinates switches screens and scrolls so that the coordinates designated by the touch sensor 40 become the center of the display screen of the display 40. The details will be described below.

FIG. 3 is a flow chart for explaining the control of the first scroll of the control unit 22 of FIG. 2, and FIG. 4 is a view for explaining the scroll of the screen when the point to be centered is touched with a finger. FIG. 5 is a diagram for explaining screen switching by the screen switching unit 24 of FIG. In step S1 shown in FIG. 3, the point desired to be the center is touched (contacted) with a finger. That is, when the user instructs the screen of the display unit 30 with a finger as shown in FIG. 4A, the screen scrolls so that the point touched with the finger becomes the center, as shown in FIG. 4B. . The scroll processing of this screen is performed as follows.

In step S2, the point on the display 30 is determined by the touch sensor 40 for determining the location. In step S3, the screen is switched to a map centered on the touched point. Figure 5
Will be described in detail. CD-ROM in the storage unit 21
Road map data from 1 is coordinates A (0,0), B (0,
Y), C (X, Y), and D (X, 0) are expanded and stored in the memory in the area. Of the memories of the expanded area, the size of the area of the memory displayed on the screen of the display 30 is hx × hy. Where hx <Y, h
y <Y. Further, before the screen of the display unit 30 is scrolled, the data displayed on the screen of the display unit 30 has coordinates a (x, y), b (x, y + hy), c (x + hx,
y + hy), d (x + hx, y). Assuming that the coordinate P designated by the user on the display device 30 is (x0, y0) in the designated point determination in step S2, the screen of the display device 30 after scrolling has coordinates a '(x0-hx / 2,2.
y0-hy / 2), b '(x0-hx / 2, y0 + hy /
2), c '(x0 + hx / 2, y0 + hy / 2), d'
It is set within the area indicated by (x0 + hx / 2, y0-hy / 2). Thus, the screens are instantly switched and a map centering on the touched point appears on the screen of the display unit 30. Therefore, the operation can be simplified and the reliability is increased by directly designating a certain point on the map.

Although the above example describes a scroll that moves around an arbitrary point, a scroll that moves an arbitrary point having a higher degree of freedom to an arbitrary point may be desired. Means for achieving this task will be described below. The vertical and horizontal directions of the screen of the display unit 30 are divided into a plurality of areas, for example, 25. The locus traced by the user's finger in each of the divided screen areas is detected by the touch sensor 40, and the locus is determined as a vector based on the detection result. The screen scrolling is controlled based on this vector as follows.

FIG. 6 is a flow chart for explaining the second scroll control of the control unit 22 of FIG. 2, and FIG. 7 is a view for explaining the screen scroll when tracing the screen in an arbitrary direction. In step S4 in FIG. 6, the user traces the screen in any direction. In step S5,
When tracing the screen in the direction of the arrow shown in FIG.
This direction is determined using the touch sensor 40 as described later.

In step S6, the screen is scrolled in the direction of the arrow shown in FIG. 7 (b). Next, the process of step S5 will be described in more detail. FIG. 8 is a flowchart for explaining the direction determination in step S5 of FIG. 6 in detail. In step S10 shown in FIG. 8, an area Q on the screen based on the detection result of the touch sensor 40.
It is determined that (see FIG. 10) is touched.

In step S11, it is determined whether a certain area is touched within a certain time. Step S
In 12, if the above determination is “no”, that is, if there is no touch, no operation is performed. Step S
13, the determination in step S11 is “yes”
If so, a vector from the first touched area Q to the next area is generated.

In step S14, it is determined whether a certain area is touched within a certain time. Step S
At 15, if the above determination is “yes”, that is, if there is a further touched area within a fixed time, a vector from the previously touched area to the currently touched area is generated.

FIG. 9 is a diagram for explaining areas that are continuously touched in step S15 (S13) of FIG.
As shown in FIG. 9, if the shaded area is the previous touched area and the touched area is in any of eight directions adjacent to the circumference of the shaded area, the touch is made within a certain time. Determine that there is. In step S16, a vector is generated by adding this vector to the previously issued vector, and the process returns to step S14.

FIG. 10 is a diagram for explaining the generation of the vector of FIG. As shown in this figure, it is assumed that the screen is traced by a finger like a QR line. Here, if the coordinates (x ', y') with Q as the origin are taken, the vector coordinates to the next area are (-hx / 25, 0). The vector coordinates of the subsequent areas are (-hx / 25, hy / 25,), (-2hx /
25, hy / 25), (-2hx / 25, 2hy / 2
5, and the coordinates of the vector at the final point R are (-
3hx / 25, 2hy / 25). In this way, the coordinates of the vector are obtained.

In step S17, the above step S
If the determination at 14 is "no", the screen is scrolled in the direction of that vector. That is, as shown in FIG. 8, if the touched area is other than the eight adjacent directions of the diagonally shaded area, vector generation ends and the screen is scrolled in the direction of the vector thus generated. FIG. 11 is a diagram showing screen switching by the screen switching unit 24 for scrolling in FIG. Based on the coordinates of the vector R in step S16, the screen abcd is scrolled to the screen a'b'c'd 'as shown in the figure. Here, the coordinates after scrolling are a '(x + 3hx / 25, y-2hy
/ 25), b '(x + 3hx / 25, y + 23hy / 2
5), c '(x + 28hx / 25, y + 23hy / 2
5), d '(x + 28hx / 25, y-2hy / 25)
Becomes

Therefore, by directly tracing the screen from the desired point to the desired point and scrolling, the operation can be simplified and the operation time can be shortened. The screen may be scrolled after the step S16 each time a vector is generated. Next, the third scroll will be described. This is a modification of the second scroll. FIG. 12 is a diagram showing a screen display control device in navigation for realizing the third scroll. As shown in this figure, the touch sensor 4
Reference numeral 0 is a component different from that of FIG. 1, and includes an optical touch sensor 41 used to determine the direction of tracing the screen of the display device 30 and a pressure sensor 42 for determining the pressure of tracing the screen. The display control unit 20 connected to the optical sensor 41 and the pressure sensor 42 performs the scroll control of the screen of the display device 30 as follows based on the outputs of the optical sensor 41 and the pressure sensor 42.

FIG. 13 is a flow chart for explaining the third scroll control of the control unit 20 in FIG. 12, and FIG. 14 is a view for explaining the scroll when the screen is traced by applying force in any direction. FIG. 15 is a diagram for explaining scrolling when tracing the screen in any direction without applying force.
In step S20 shown in FIG. 13, the user traces the screen in any direction.

In step S21, the direction in which the screen is traced is determined by the direction determination sensor which is the optical sensor 41. Further, a pressure sensor 42, which is a pressure sensor, determines the pressure on the screen. In step S22, the screen is scrolled according to the pressure when tracing in that direction. That is, as shown in FIG. 14A, when the screen is swept with force in any direction,
As shown in (b), scrolling is performed in a wide range in that direction. As shown in FIG. 15 (a), when the screen is traced without applying force in any direction, as shown in FIG. 15 (b), the screen is slightly scrolled in that direction.

Next, the direction in which the screen scrolls and the calculation of the amount will be described. Returning to FIG. 10, the line Q traced on the screen
Assuming that the inclination of the vector of R is θ, as an example, the coordinates of the vector at the point R are (-3hx / 25, 2hy / 25)
Is. Therefore, if the angle formed by the locus QR and the x ′ axis is θ, then tan θ = (2hy / 25) / (− 3hx / 25) = − 2hy / 3hx.

Let S be the detected pressure at which the pressure on the screen is detected. The detected pressure S is a force for pressing the screen, and the timing changes depending on the person and the situation at that time, so the average value of the pressures in all the areas is set as the magnitude by the pressure. In addition, the maximum detected pressure is set to SM, and the scrolling amount is standardized as follows. That is, in the control unit 22, in the memory area, the scroll amount of the screen is (S /
SM) hx · sin θ, and in the Y direction, − (S / SM
) Hy · cos θ.

FIG. 16 is a diagram showing screen switching by the screen switching unit 24 for scrolling in FIG.
As shown in the figure, the screen abcd to the screen a'b'c '
Scroll to d '. Here, the coordinates after scrolling are a ′ {x + (S / SM) hx · cos θ, y− (S / SM
) Hy.sin.theta.}, B '{x + (S / SM) hx.c
os θ, y + hx − (S / SM) hy · sin θ},
c '{x + hx + (S / SM) hx.cos .theta., y + h
x- (S / SM) hy * sin?}, d '{x + hx +
(S / SM) hx .cos .theta., Y- (S / SM) hy.
sin θ}.

Therefore, the operation can be simplified by directly tracing the screen from the desired point to the desired point and scrolling. The screen may be scrolled after the step S16 each time a vector is generated. Therefore, in addition to the effect of the second scroll, the main scroll has an effect that it can be operated intuitively.

[0029]

As described above, according to the present invention, when the position of the screen to be centered is directly touched with a finger, the screen is instantly switched so that the position detected by the touch sensor becomes the center of the screen. On the other hand, the screen is scrolled so that the operation time is shortened, the operation is simplified, and the operation can be surely performed once. Also, because the trace of the traced screen is detected and the screen is scrolled according to this trace,
The direction and range of scrolling can be adjusted as desired by the user, the operation is simplified, the operation time is shortened, and the operation can be performed sensuously.

[Brief description of drawings]

FIG. 1 is a diagram showing a screen display control device in navigation according to an embodiment of the present invention.

FIG. 2 is a diagram showing functional blocks of a display control unit 2 of FIG.

FIG. 3 is a flowchart illustrating a first scroll control of a control unit 22 in FIG.

FIG. 4 is a diagram illustrating scrolling of a screen when a finger touches a point to be centered.

5 is a diagram illustrating screen switching by a screen switching unit 24 in FIG.

6 is a flowchart illustrating a second scroll control of a control unit 22 in FIG.

FIG. 7 is a diagram illustrating scrolling of a screen when tracing the screen in an arbitrary direction.

FIG. 8 is a flowchart illustrating in detail the direction determination in step S5 of FIG.

FIG. 9 is a diagram illustrating an area that is continuously touched in step S15 (S13) of FIG.

FIG. 10 is a diagram illustrating generation of the vector of FIG.

11 is a diagram showing screen switching by the screen switching unit 24 for scrolling in FIG.

FIG. 12 is a diagram showing a screen display control device in navigation for realizing a third scroll.

13 is a diagram illustrating a third scroll control of the control unit 22 in FIG.

FIG. 14 is a diagram illustrating scrolling in the case of tracing the screen with force in an arbitrary direction.

FIG. 15 is a diagram illustrating scrolling when tracing the screen in any direction without applying force.

16 is a diagram showing screen switching by the screen switching unit 24 for scrolling in FIG.

FIG. 17 is a diagram illustrating screen scrolling in conventional navigation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... CD-ROM 20 ... Display control part 30 ... Indicator 40 ... Touch sensor 41 ... Optical sensor 42 ... Pressure sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication location G09B 29/00 G09G 5/00 510 H 9471-5G 5/36 510 B 9471-5G (72) Invention Person Hiroyuki Fujimoto 1-2-2 Gosho-dori, Hyogo-ku, Kobe-shi, Hyogo Within Fujitsu Ten Limited

Claims (4)

[Claims] 1. A screen display control device for navigation having a function of scrolling a screen displayed on a display device (30), wherein the display device (3) is used to detect the position of the touched screen.
0) is provided with a touch sensor (40), and the screen is scrolled so that the position detected by the touch sensor (40) is at the center of the screen. 2. The screen display control device for navigation according to claim 1, wherein a trajectory of the screen traced by continuous contact is detected and the screen is scrolled according to the trajectory. 3. The screen display control device for navigation according to claim 1, wherein the touch sensor (40) comprises at least an optical sensor and a pressure sensor. 4. The screen display in navigation according to claim 2, wherein a screen trajectory traced by continuous contact is detected and the screen is scrolled according to the direction of the trajectory and the pressure on the screen. Control device.