JP2008191086A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system capable of recognizing the position of an operation key during travel of a vehicle by a user, and capable of preventing a map from being displayed in an unexpected manner by the user. <P>SOLUTION: A CPU prohibits a scroll for the displayed map (S08), when determining that the vehicle is under the travel (S01) and when detecting the tracing of a touch panel arranged on a screen of a display (S04), and the touch panel is vibrated (S11) when a contact position of the touch panel is located on the operation key during the tracing. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device including a display device and a touch panel.

  As a conventional navigation device having a touch panel, there is a navigation device that displays a map on a screen of a display device, detects a contact by the touch panel, and scrolls the map so that the detected position on the map becomes the center of the screen ( For example, see Patent Document 1).

Japanese Patent Laid-Open No. 7-210137 (FIG. 4)

  A conventional navigation device scrolls a map even while a car is running. For this reason, in a conventional navigation device, when the driver searches for an operation key displayed on the screen while the vehicle is running, the driver cannot see the screen, so the position of the operation key is not known, and the driver touches the map. There is a problem that the display of the map becomes unexpected for the user.

  The present invention has been made in order to solve the conventional problems, and allows the user to recognize the position of the operation key while the vehicle is traveling, so that the display of the map is not unexpected for the user. The purpose is to provide.

  The navigation device of the present invention is traced to a display device that displays a map and operation keys, a touch panel that is provided on the display device to detect a contact position, vibration generating means that applies vibration to the touch panel, and the touch panel. A scroll prohibiting means for prohibiting the scrolling of the map displayed on the display device, the touch panel being traced, and a touch position detected by the touch panel of an operation key displayed on the display device. If it exists above, it has a vibration control means for controlling the vibration generating means to give vibration to the touch panel.

  As described above, according to the present invention, when a user performs a key operation while the vehicle is running, the user can recognize the position of the operation key by vibration, and by prohibiting the scrolling of the map by tracing, The display does not become unexpected for the user.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram of a navigation apparatus according to the first embodiment of the present invention. The navigation device 100 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a program RAM (Random Access Memory) 103, a storage device 104, a display device 109, a drawing controller 110, a drawing RAM 111, a button group 112, a touch panel. 113, a vibration generator 114, a speaker 116, and a DA converter 117. The navigation device 100 is connected to a GPS device 105, a VICS (registered trademark) device 106, a speed sensor 107, and a parking brake 108.

  The CPU 101 controls each unit such as executing the operation of the navigation device 100 by reading the program stored in the ROM 102 into the program RAM 103 and executing the program. The storage device 104 is a device that stores information on, for example, a hard disk or a DVD (Digital Versatile Disc), and stores map information and the like.

  The GPS device 105 acquires position information such as latitude and longitude using GPS (Global Positioning System), and the VICS device 106 acquires traffic information using VICS (Vehicle Information and Communication System).

  The speed sensor 107 detects the traveling speed of the car and notifies the CPU 101 of the detected traveling speed. The parking brake 108 mechanically fixes the driving wheel of the vehicle and notifies the CPU 101 whether or not the driving wheel is fixed.

  The display device 109 is composed of a liquid crystal display or the like and includes a screen. The drawing RAM 111 stores drawing data displayed on the screen of the display device 109, and the drawing controller 110 reads out the drawing data stored in the drawing RAM 111 and displays it on the screen.

  The button group 112 is operated by the user and is assigned functions such as menu switching and volume adjustment. The touch panel 113 is arranged on the surface of the screen provided in the display device 109, and detects whether or not a touch operation has been performed, and detects a contact position when the user performs a touch operation. Here, the “touch operation” refers to an operation in which the user touches an arbitrary position on the touch panel 113 with a finger or the like. The “contact position” refers to a position on the touch panel 113 where the user contacts with a finger or the like. The vibration generator 114 is controlled by the CPU 101 and vibrates the entire touch panel 113.

  The DA converter 117 converts the acoustic signal processed by the CPU 101 from a digital signal to an analog signal and outputs the signal to the speaker 116. The speaker 116 outputs sound according to the input signal.

  Next, the display device 109 will be described with reference to FIG.

  The display device 109 includes a screen 22. Further, the button group 112 is installed in a portion other than the screen 22 of the display device 109. As shown in FIG. 2, the screen 22 displays a map and operation keys 20a to 20d for executing predetermined functions.

  When the user touches the operation keys 20a to 20d, the touch panel 113 notifies the CPU 101 of the contact position. The CPU 101 specifies which of the operation keys 20a to 20d the contact position is on, and executes a function corresponding to the specified operation key.

  The function assigned to the operation keys 20a to 20d is preferably a function that may be operated by the driver while the vehicle is traveling, such as a function of stopping or restarting guidance or guiding a detour route.

  If the user touches a position on the map that is not on the operation keys 20 a to 20 d (for example, position 21 on the map), the CPU 101 causes the position on the map where the contact position is to be the center of the screen 22. To scroll the map.

  The detailed operation of the navigation device 100 configured as described above will be described with reference to FIGS.

  FIG. 3 is a flowchart showing an example of the operation of navigation device 100 according to the embodiment of the present invention. First, the CPU 101 determines whether or not the car is traveling (S01). The CPU 101 determines that the vehicle is stopped when the vehicle traveling speed detected by the speed sensor 107 is zero, and determines that the vehicle is traveling when the vehicle traveling speed is not zero.

  If the CPU 101 determines NO in step S01, it performs a normal operation (S02). Here, “normal operation” means that when the contact position is on the operation keys 20a to 20d, the operation corresponding to each operation key is performed, and when the contact position is on the map. In other words, the operation of scrolling the map so that the contact position becomes the center of the screen.

  If YES is determined in step S01, the CPU 101 determines whether or not a touch operation has been performed (S03). When determining NO in step S03, the CPU 101 ends the process.

  If it is determined as YES in step S03, the CPU 101 determines whether or not the tracing is performed (S04). Here, “tracing” refers to an operation in which the contact position where the user's finger or the like first contacts the touch panel 113 is used as a start point, and the contact position is moved while the user's finger or the like is in contact with the start point.

  FIG. 4 is a diagram for explaining tracing. The trace may be a straight line like the locus 23a or a curved line like the locus 23b.

  The operation for determining whether or not to trace in step S04 will be described with reference to the flowchart of FIG.

  CPU101 acquires and memorize | stores the coordinate of the contact position at the time of a touch operation start, and starts time measurement from the time of detecting a touch (S041). Following step S041, the CPU 101 determines whether or not the time being measured has exceeded a predetermined time T1 (S042). When determining NO in step S042, the CPU 101 returns the process to step S042. If YES is determined in step S042, the CPU 101 determines whether or not the coordinates of the contact position when the predetermined time T1 has elapsed are compared with the stored coordinates of the contact position at the start of the touch operation ( S043).

  When determining NO in step S043, the CPU 101 determines whether or not the contact position is on the operation keys 20a to 20d (S05). If YES is determined in step S05, the CPU 101 executes a function corresponding to the operation key having the contact position (S06). If NO is determined in step S05, the CPU 101 scrolls the map so that the position on the map where the contact position is located becomes the center of the screen (S07).

  In addition, CPU101 can complete | finish a process, when touch operation is complete | finished while measuring predetermined time T1 in step S042.

  Note that the CPU 101 can arbitrarily set the predetermined time T1. The predetermined time T1 is preferably about 1000 ms (milliseconds). In step S043, if the distance between the coordinates of the contact position at the start of the touch operation and the coordinates of the contact position after the lapse of the predetermined time T1 is within a certain allowable amount, for example, about 10 mm, the CPU 101 It may be determined that the coordinates of are not changed. The reason for determining in this way is that the movement of the contact position of about 10 mm may occur even if the user recognizes that the contact position is not moved, and the CPU 101 does not determine this movement as a trace. is there.

  If it is determined as YES in step S043, the CPU 101 determines that it is tracing and performs control to prohibit the scrolling of the map (S08).

  Following step S08, the CPU 101 controls the vibration generator 114 to vibrate the touch panel 113 (S09). Step S09 will be described in detail with reference to FIGS. 6 (A) and 6 (B).

  In step S09, the CPU 101 first generates vibration of the vibration pattern M1 (S091). As shown in FIG. 6B, the vibration pattern M1 is a pattern in which vibration generation of 20 ms and vibration stop of 780 ms are repeated in a cycle of 800 ms. The user can recognize that scrolling of the displayed map is prohibited by the vibration of the vibration pattern M1.

  Following step S091, the CPU 101 acquires and stores the coordinates of the contact position at the time when the vibration is generated in step S091, and starts timing from the time when the vibration is generated (S092).

  Following step S092, the CPU 101 determines whether or not the coordinates of the contact position when the measured time has passed the predetermined time T2 have changed compared to the stored coordinates of the contact position (S093). If CPU 101 determines YES in step S093, the process returns to step S091, and if NO is determined in step S093, the process proceeds to step S10. By step S093, the CPU 101 can determine whether or not the tracing is continued.

  Note that the CPU 101 can also notify the user with sound instead of the vibration pattern M1 in step S091. However, when the user is listening to music, it is preferable to notify the user by vibration because it does not interfere with the music.

  The CPU 101 can arbitrarily set the period of the vibration pattern, the vibration generation time, and the vibration stop time. Further, the CPU 101 can arbitrarily set the predetermined time T2. The predetermined time T2 is preferably about 100 ms.

  In step S093, if the distance at which the coordinates of the contact position has changed is within a certain allowable amount, for example, within about 10 mm, the CPU 101 may determine that the coordinates of the contact position have not changed.

  If the user ends the touch operation while measuring the predetermined time T2 in step S093, the CPU 101 can end the process.

  If NO is determined in step S093, it is determined that the tracing is stopped, and the CPU 101 determines whether the coordinates of the contact position are on the operation keys 20a to 20d (S10). When determining NO in step S10, the CPU 101 returns the process to step S09.

  If YES is determined in step S10, the CPU 101 controls the vibration generator 114 so as to vibrate the touch panel 113 with a different vibration pattern for each of the operation keys 20a to 20d (S11). The CPU 101 controls the vibration in step S09 to have a pattern different from the vibration in step S11.

  FIG. 7 is a diagram for explaining vibration patterns corresponding to the operation keys. For example, as shown in FIG. 7, each vibration pattern has a fixed time of 1500 ms as one cycle. The CPU 101 controls the vibration generator 114 so that one unit of vibration is generated a predetermined number of times, with 100 ms of vibration generation and 150 ms of vibration stop being one unit of vibration.

  The vibration pattern F1 generates one unit of vibration once during one period, the vibration pattern F2 generates one unit of vibration twice during one period, and the vibration pattern F3 generates one unit of vibration during one period. The 3 times occurrence, vibration pattern F4 is a pattern in which 1 unit of vibration is generated 4 times during one period. After a fixed time of 1500 ms, the same vibration pattern is repeated at a cycle of 1500 ms. For example, the vibration patterns F1 to F4 are assigned to the operation keys 20a to 20d, respectively. Accordingly, the user can distinguish and recognize which of the operation keys 20a to 20d the contact position is on.

  Note that the vibration patterns F1 to F4 may be different from the vibration pattern shown in FIG. For example, when one unit of vibration is generated three times during one cycle, the CPU 101 is controlled to continuously generate one unit of vibration as in the vibration pattern F3, but as in the vibration pattern F5. It may be controlled to generate one unit of vibration after a certain period of time.

  The assignment of the vibration pattern to the operation keys may be set by the user. As a result, the user can assign vibration patterns that are easily recognized by the user to the operation keys.

  Note that the CPU 101 can return the process to step S09 when the contact position is no longer on the operation keys 20a to 20d after step S11 and when the tracing is resumed.

  Following step S11, the CPU 101 determines whether a retouch operation has been performed (S12). Here, the retouching operation is, for example, an operation in which, when the user performs a touch operation with a finger or the like, the finger or the like is once released from the touch panel and then touched again. The CPU 101 determines whether or not a retouch operation has been performed. After detecting that the CPU 101 has been touched on the operation keys 20a to 20d, the CPU 101 detects that it has not been touched. After that, the CPU 101 detects that the touch has been made again on the operation keys 20a to 20d. Judge that it was done. When a retouch operation is performed at any position on the operation keys 20a to 20d, the CPU 101 performs a function corresponding to the operation key and controls to stop vibration (S13). Thus, the user can execute the function when intended by an operation different from the tracing.

  The CPU 101 described that the process returns to step S09 if NO is determined in step S10. However, the CPU 101 performs control so as to stop the vibration without returning to step S09, and when the tracing is resumed, the process is stepped. Returning to S09, if the tracing is not resumed, the process can be terminated.

  In addition, when the time which detected that the touch panel is not touched in step S12 exceeds predetermined time (for example, 500 ms), CPU101 can judge that it is not a retouch operation and can complete | finish a process.

  Note that after the process is finished, the CPU 101 can cancel the prohibition of scrolling the map so that it can be scrolled, and the process can be returned to step S01.

  Note that the vibration generator 114 may be configured to adjust the strength of vibration when the entire touch panel 113 is vibrated. The CPU 101 can generate a vibration pattern by controlling not only the vibration period, vibration generation time, and vibration stop time, but also the vibration intensity.

  Note that the vibration generator 114 may vibrate the contact position, and may vibrate the contact position and its vicinity. The CPU 101 may be a single integrated circuit including the ROM 102 and the program RAM 103.

  As described above, the navigation device 100 prohibits the scrolling of the map when the tracing is detected while the vehicle is running, and if the tracing is in progress and the contact position is on the operation key, the navigation device 100 generates a vibration corresponding to the operation key. generate. With this function, the navigation device 100 can make the user recognize the position of the operation key when the user performs a key operation while the vehicle is traveling, and the display of the map is not unexpected for the user.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS.

  In the first embodiment, the CPU 101 controls the touch panel 113 to vibrate with the vibration pattern M1 in step S09. However, the CPU 101 changes the vibration pattern according to the contact position instead of the vibration pattern M1. You may control.

  A vibration pattern that changes in accordance with the contact position will be described with reference to FIG. FIG. 8A is a diagram when a plurality of operation keys are arranged in the vicinity of one side of the screen 22.

  The touch panel 113 is divided into a plurality of small areas. For example, in FIG. 8A, the touch panel 113 is divided into a region A and a region B above and below the boundary line. The operation keys 20a to 20d are included in the area A. Note that the illustrated boundary line is a line for explaining a region and is not actually displayed on the screen.

  Next, the CPU 101 determines which of the divided areas has the contact position. When the contact position is not on the operation key in the area A, the CPU 101 controls the vibration generator 114 so that the touch panel 113 vibrates with the vibration pattern M3 shown in FIG. When the contact position is in the region B, the CPU 101 controls the vibration generator 114 so that the touch panel 113 vibrates with the vibration pattern M2 shown in FIG.

  The period of vibration generation in the vibration pattern M2 is 400 ms, and the period of vibration generation in the vibration pattern M3 is 200 ms. In any vibration pattern, the vibration generation time is 20 ms. The difference between the vibration patterns M2 and M3 is the period of vibration generation, and the period of the vibration pattern M2 is longer than the period of the vibration pattern M3.

  When the contact position moves from the region B without the operation key to the region A with the operation key, the vibration pattern changes from the vibration pattern M2 to the vibration pattern M3 having a shorter cycle than the vibration pattern M2. As a result, the user can recognize that the contact position has moved to the area where the operation key is located by changing the period of the vibration pattern.

  Next, a case where a plurality of operation keys are arranged in the vicinity of two sides of the screen 22 will be described with reference to FIG.

  As shown in FIG. 9, the operation keys 20 a and 20 b are arranged near the left side of the screen 22, and the operation keys 20 c and 20 d are arranged near the right side of the screen 22. The touch panel 113 is divided into five regions by four boundary lines parallel to both the right side and the left side, and these five regions are further classified into three types of regions A, B, and C. A region including the operations 20a to 20d is classified as a region A. A region adjacent to the region A is classified as a region B, and a region adjacent to the region B and opposite to the region A is classified as a region C.

  For example, when the contact position is in the region A and not on the operation keys 20a to 20d, the CPU 101 sets the vibration cycle to 100 ms, and when the contact position is in the region B, the vibration cycle is set to 200 ms, and the contact position is the region C. If it is, the vibration generator 114 is controlled so that the vibration period is 300 ms.

  As described above, when the operation keys 20a to 20d are arranged in the vicinity of two opposite sides of the screen 22, the touch panel 113 is a boundary line parallel to each of the even two opposite sides. And the odd-numbered (N + 1) areas, and the divided areas are classified into [(N / 2) +1] types, and the CPU 101 sets the vibration generator 114 so as to generate vibration for each of the classified types. Control. The period of vibration is controlled so that the area including the operation key is shortest and the period from the area including the operation key becomes longer in order of increasing distance. With this configuration, when the period of the vibration pattern is shortened, the user can recognize that the user is approaching the area including the operation keys 20a to 20d.

  Next, the case where there is one operation key will be described with reference to FIG.

  As shown in FIG. 10, the touch panel 113 is divided into areas A to F according to the distance from one operation key 20a. For example, a region including the operation key 20a is a region A. The CPU 101 controls the vibration generator 114 to vibrate the touch panel 113 with a vibration pattern corresponding to the region where the contact position exists. It is preferable that the CPU 101 performs control so that the vibration pattern is allocated so that the period of vibration gradually increases from the area A to the area F. Thereby, when the period of the vibration pattern is shortened, the user can recognize that the area including the operation key 20a is approaching.

  When there is one operation key, the CPU 101 can also change the vibration according to the distance from the operation key to the contact position. This configuration will be described with reference to FIG. Positions 25a to 25d are contact positions on the touch panel 113, and alternate long and short dash lines 24a to 24c are circles centered on the operation keys 20a. In addition, all of the positions 25a to 25d and the alternate long and short dash lines 24a to 24c are used for explanation, and are not displayed on the screen 22. Among the positions 25a to 25d, the position 25d is farthest from the operation key 20a, and the position 25a is closest to the operation key 20a. The positions 25b and 25c are at an equal distance from the operation key 20a.

  When the contact position is at the position 25a, the CPU 101 controls to vibrate with a shorter cycle than when the contact position is at the position 25b. When the contact position is at the position 25b, the CPU 101 controls to vibrate at a shorter cycle than when the contact position is at the position 25d. The period of vibration is controlled in proportion to the distance from the operation key 20a to the contact position. The vibrations at the positions 25b and 25c at the same distance from the operation key 20a have the same period.

  As described above, when the number of operation keys is one, by setting the period of vibration proportional to the distance from the operation key to the contact position, the user can approach the operation key when the period of the vibration pattern becomes shorter. Can be recognized.

  When the vibration is changed for each region as shown in FIG. 10, when the contact position is in the same region, the vibration is performed with the same period, and thus it cannot be recognized whether or not the operation key is approached. However, by controlling the period of vibration in proportion to the distance as shown in FIG. 11, the user can recognize in detail that the contact position is approaching the operation key.

  As described above, according to the present invention, when a user performs a key operation while the vehicle is running, the user can recognize the position of the operation key, and the display of the map is not unexpected for the user. It is useful as a navigation device having an effect.

The block diagram of the navigation apparatus in the 1st Embodiment of this invention The figure showing the display apparatus and screen in the 1st Embodiment of this invention The flowchart for demonstrating operation | movement of the navigation apparatus in the 1st Embodiment of this invention. The figure for demonstrating the screen tracing in the 1st Embodiment of this invention The flowchart for demonstrating the process which determines the trace in the 1st Embodiment of this invention The figure which shows the detail of a process of step S09 of FIG. The figure for demonstrating the vibration pattern in the 1st Embodiment of this invention The figure for demonstrating the change of the vibration pattern corresponding to the area | region in the 2nd Embodiment of this invention. The figure for demonstrating the change of the vibration pattern corresponding to the area | region in the 2nd Embodiment of this invention. The figure for demonstrating the change of the vibration pattern corresponding to the area | region in the 2nd Embodiment of this invention. The figure for demonstrating the change of the vibration pattern corresponding to the distance in the 2nd Embodiment of this invention.

Explanation of symbols

20a to 20d Operation keys 22 Screen 100 Navigation device 101 CPU
102 ROM
103 Program RAM
104 Storage Device 105 GPS Device 106 VICS Device 107 Speed Sensor 108 Parking Brake 109 Display Device 110 Drawing Controller 111 Drawing RAM
112 Button Group 113 Touch Panel 114 Vibration Generator 116 Speaker 117 DA Converter

Claims (7)

A display device for displaying a map and operation keys, a touch panel provided on the display device for detecting a contact position, vibration generating means for applying vibration to the touch panel, and display on the display device when the touch panel is traced If the touch panel is traced and the touch position detected by the touch panel is on the operation key displayed on the display device, the touch panel is prohibited. And a vibration control means for controlling the vibration generating means so as to apply vibration to the navigation apparatus. The vibration control means controls the vibration generating means to give different vibrations to the touch panel for each of the plurality of operation keys when there are a plurality of operation keys displayed on the display device. Item 4. The navigation device according to Item 1. When the touch panel is traced and the touch position detected by the touch panel is not on the operation key displayed on the display device, the vibration control means is configured such that the touch position detected by the touch panel is the touch position. 2. The navigation apparatus according to claim 1, wherein the vibration generating unit is controlled so as to give the touch panel vibration different from that on the operation key displayed on the display device. An area on the touch panel that is not on the operation key displayed on the display device is preliminarily divided into a plurality of small areas, and the vibration control unit applies different vibrations to the touch panel for the plurality of small areas. 4. The navigation apparatus according to claim 3, wherein the vibration generating means is controlled. The vibration control means includes the contact position detected by the touch panel when the touch panel is traced and the contact position detected by the touch panel is not on the operation key displayed on the display device. 2. The navigation device according to claim 1, wherein the vibration generating unit is controlled so as to give the touch panel vibration according to a distance from an operation key displayed on the display device. Further detecting whether or not the touch panel is touched, detecting that the touch panel is not touched after detecting that the touch panel is touched on the operation key displayed on the display device, The function corresponding to the operation key displayed on the display device is executed when it is detected that the touch is performed again on the operation key displayed on the display device. Navigation device. In an integrated circuit used in an in-vehicle navigation device including a display device that displays a map and operation keys, a touch panel that is provided on the display device and detects a contact position, and vibration generation means that applies vibration to the touch panel. When the touch panel is traced, the integrated circuit includes a scroll prohibition unit that prohibits scrolling of a map displayed on the display device, and the touch panel is traced, and a contact position detected by the touch panel is detected. An integrated circuit comprising: vibration control means for controlling the vibration generating means so as to apply vibration to the touch panel when the operation key is displayed on the display device.

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