JP2005182313A - Operation menu changeover device, on-vehicle navigation system, and operation menu changeover method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a proper screen different in the case of a screen to which an operator is accustomed and in the case of an unaccustomed screen, in an operation menu screen of an on-vehicle navigation system. <P>SOLUTION: This on-vehicle navigation system has: a display control part 14 for changing over a plurality of operation menus and displaying it on a display device 3; an input part 2 for inputting an operation instruction in the operation menu during the display; and a switch operation monitoring part 31. The switch operation monitoring part decides proficiency for selecting the next screen in each the operation menu screen, and gives a changeover instruction to the display control part such that auxiliary display is additionally displayed on the operation menu screen correspondingly to the proficiency. The switch operation monitoring part measures a switch operation waiting time until menu item selection in each the operation menu, and performs the additional display for explaining contents of an menu item as the auxiliary display, for example, when deciding that it exceeds a prescribed time. The switch operation monitoring part counts the number of return operations to the screen in each the operation menu screen, and additionally displays the menu item of a lower hierarchy as the auxiliary display when deciding that it exceeds a prescribed number of times. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an operation menu switching device for hierarchically displaying an operation menu on the screen of a display device, and switching the operation menu screen by selecting a displayed menu item, and an in-vehicle navigation system incorporating the operation menu switching device. The present invention relates to a system and an operation menu switching method.

  Conventionally, display devices such as in-vehicle navigation systems and input units often employ a hierarchical menu structure. In the hierarchical menu structure adopted in this in-vehicle navigation system, a plurality of operation menus are displayed in a hierarchy, and when an operator selects an item in each operation menu, lower-level menu display and input operations are possible. ing. However, the hierarchical menu structure in which items are selected sequentially has a problem that it is difficult for beginners to understand what is in the lower hierarchy.

In view of this, a system is known that sets whether the operator is a beginner or an expert and switches to a menu display suitable for the beginner and the expert.
When operating the in-vehicle navigation system for the first time, all operators are beginners, but if you repeat the operation several times, you will become familiar with the operation. At this time, if the system is a system in which the operator himself selects and selects a menu suitable for a beginner / expert, it is often difficult to determine at which point the operator should switch between the beginner / expert. .
Japanese Patent Application Laid-Open No. 2004-133867 discloses a technique for determining the proficiency level of an operator on the navigation system side, automatically determining the switching timing, and switching between beginners / experts.

According to this known technique, the operation time interval required by the operator is calculated based on the display timing when the operation menu is displayed and the subsequent input timing for transition to the next screen, and the proficiency level is determined according to the operation time interval. Then, an instruction is given to switch the menu display content of the display device to an operation menu corresponding to the proficiency level. For this reason, it is possible to judge the proficiency level using a single parameter called the operation time interval and automatically switch to the menu display corresponding to the proficiency level, or to provide the operator with advice for switching the menu display. Yes.
JP 2002-229700 A

In the above prior art, the determination time of the operation switch operation waiting time until switching to the next operation menu screen used to determine the skill level of the operator is set to one value regardless of the content of the operation menu screen. It is fixed to. However, depending on the operation menu screen, there are screens that require time for item selection, and screens that do not, even for a familiar operator, and there is a problem that the level of proficiency cannot be determined properly within a fixed determination time.
In order to solve the above problems, the present invention displays different appropriate operation menu screens for an operation menu screen that an operator is accustomed to and an unfamiliar operation menu screen.

  Therefore, the present invention provides a display device that selectively displays a plurality of operation menus, a display control unit that performs switching control of operation menu screens based on hierarchical correspondence data between the plurality of operation menus, and a display device An input unit for inputting operation instructions in the operation menu currently displayed on the display, a proficiency level determination means for determining a proficiency level for selecting the next screen for each operation menu screen, and an auxiliary display on the operation menu screen corresponding to the proficiency level Switching means for instructing the display control unit to switch menu display so as to additionally display.

  According to the present invention, an auxiliary display is not added on an operation menu screen that an operator is accustomed to, and an auxiliary display is additionally displayed on an unfamiliar operation menu screen. The operation menu screen can be displayed.

Embodiments of the present invention will be described below.
FIG. 1 is a block diagram of an in-vehicle navigation system to which an operation menu switching device as an embodiment of the present invention is applied.
In this in-vehicle navigation system, the display device 3 is mounted on the upper center of an unillustrated instrument panel of the vehicle, and the input unit 2 is mounted on an operation panel (not illustrated) provided in the vicinity thereof. The display device 3 displays a navigation image such as an operation mode image and a map, which will be described later, on its screen, and is connected to a navigation ECU 1 attached to the vehicle body base (not shown) via a signal line.

The in-vehicle navigation system searches for map data based on latitude data, longitude data, altitude data, etc. indicating the current position of the vehicle, and determines the current position based on the map data. The center map is displayed on the display device 3, and the destination is searched and set, then the optimum route from the starting point or the current location to the destination is searched, the route is set, and the appropriate map is used. A navigation function of displaying guidance on the display device 3 is provided.
Such an in-vehicle navigation system includes an input unit 2, a display device 3, an external storage device 4, a GPS device 5, a sensor unit 6, a speaker 7, these input unit 2, an external storage device 4, The navigation ECU 1 is a navigation system control unit that reads data from the GPS device 5 and the sensor unit 6 and controls the display device 3 and the speaker 7 based on the data.

The configuration of each part will be described in detail below.
The display device 3 is a display device such as a CRT or LCD, and displays a road map and various messages. The speaker 7 outputs voice guidance and various message sounds.
The GPS device 5 receives radio waves from an artificial satellite (NAVSTAR) for GPS (Global Positioning System), and displays latitude data, longitude data, and altitude data indicating the position of the reception point (that is, current position). Speed data indicating the moving speed of the receiving point (that is, the traveling speed of the vehicle) and direction data indicating the moving direction are calculated and input to the navigation ECU 1.

  The sensor unit 6 includes a distance sensor that detects a travel distance of a vehicle (not shown), a speed sensor that detects a travel speed of the vehicle, and a relative orientation sensor such as a gyroscope or a left and right wheel sensor that detects a relative orientation due to a change in the travel direction of the vehicle. The detection data of the current position of the vehicle is output by outputting a value corresponding to each of the travel distance, travel speed, and traveling direction of the vehicle.

  The input unit 2 is attached to an operation panel (not shown) and includes a switch used by an operator to input various instructions. For example, a current position switch 24 for displaying the current position on the display device 3 together with the map or outputting a voice guidance from the speaker 7, a cursor movement for scrolling the item designation position on the operation menu screen at the time of destination setting processing, etc. A switch 21, a determination switch 22 for performing an input operation of a menu item selection instruction, a return switch 23 for canceling the determination operation and returning to the previous operation, and a main menu for a screen (1) described later on the display device 3. A menu switch 25, a button switch (not shown) for displaying a wide area or details in map display, and other switches are provided.

  The external storage device 4 is composed of, for example, a CD-ROM disk as a storage medium for storing various data in advance and a CD-ROM drive for reading data stored in the CD-ROM disk. . Further, the CD-ROM disc of the external storage device 4 stores map data for displaying a map on the display device 3, address data representing information on the address of each point, and the like.

In addition, information on registered points registered in advance is stored as registered point data, etc., classified by predetermined genre such as “transportation”, “food”, “accommodation”, “sports”, “shopping”, etc. Has been.
For such registered spot data, the genre name is displayed as a menu on the display device 3, and index data for searching the registered spot name data classified by genre for each genre and the selected registered spot name are displayed. Registration point position information data for displaying map data for display on the map centered on the registered point and displayed as a menu by the device 3.
Furthermore, the index data of the registration point data is configured to be able to be searched from the facility name, telephone number, address, etc. in addition to the search by genre.

The navigation ECU 1 includes an information processing unit 12, a control unit 13, a display control unit 14, and a voice control unit 15 that are connected to each other via a bus 11.
The control unit 13 is connected to the input unit 2, the display control unit 14 is connected to the display device 3, and the audio control unit 15 is connected to the speaker 7. The GPS device 5 outputs the information to the information processing unit 12 via the bus 11.
The display control unit 14 receives the contents of the operation of the input unit 2 by the operator, for example, the movement of the cursor via the control unit 13 and displays it on the display device 3, and if necessary, the information processing unit 12. Displays information to be processed and displayed on the display device 3.
Similarly, the voice control unit 15 outputs information that the information processing unit 12 performs information processing and outputs as a voice signal to the speaker 7.

The information processing unit 12 includes a CPU and is connected to a ROM 41, a RAM 42, and a backup RAM 43. The ROM 41 stores a navigation system program. The RAM 42 temporarily stores data being processed by the information processing unit 12. Further, the backup RAM 43 is configured as a writable non-volatile memory in which data written therein is not lost even when the vehicle navigation system is powered off.
The information processing unit 12 reads information from the external storage device 4 and performs information processing for display or audio output in response to the control of the navigation system as described below by the control unit 13.

  The control unit 13 executes a main routine (not shown) of the navigation control process in addition to the map display during traveling. When the menu switch 25 of the input unit 2 is turned on via the information processing unit 12, the main menu is displayed. When the screen is displayed and an item is selected by operating the cursor movement switch 21 and the decision switch 22 in that state, the information processing unit 12 is configured to execute auxiliary functions such as destination search, point registration processing, and information display. And the display control unit 14 are controlled.

The control unit 13 further includes a switch operation monitoring unit 31 and a history storage unit 32. The history storage unit 32 is, for example, a buffer memory. When the power-off signal of the in-vehicle navigation system is detected, the stored data is automatically transferred to the backup RAM 43 and stored before the power-off operation.
The switch operation monitoring unit 31 receives a screen state signal displayed on the display device 3 from the display control unit 14, for example, a signal corresponding to which operation menu screen is currently displayed. However, the operation waiting time until the item is selected and determined is measured, and when the operation is input, the operation time interval is stored in the history storage unit 32 as the switch operation time interval history.
In addition, the switch operation monitoring unit 31 counts the number of times the return switch 23 is pressed until a series of menu operations is completed for each operation menu screen that is returned when the return switch 23 is pressed, and the return switch operation history is obtained. It is stored in the history storage unit 32.

  The switch operation monitoring unit 31 monitors the switching operation of the screen display by the operation of the input unit 2 by the operator, and the operation waiting time in each operation menu screen display state is a predetermined value set for the operation menu screen. When the time Tm or the threshold time Tam has elapsed, or when the operation of returning to the operation menu screen after repeating the threshold number Lam for the operation menu screen is repeated, the help display control unit 33 of the display control unit 14 described later. An instruction is issued (see FIG. 1), and control is performed so that a help display is automatically added to the operation menu screen.

The operation menu screen of this navigation system has a hierarchical structure as shown in FIG. 2, and each operation menu screen includes, for example, screen (1), screen (2-1), screen (2-2), and screen. Specific codes such as (2-3), screen (3-1-1), screen (3-1-2), and screen (3-2-1) are attached. The code of each operation menu screen is displayed as m below.
When the switch operation monitoring unit 31 determines that the switch operation waiting time tm exceeds a predetermined time Tm set for each operation menu screen m, the help display control unit 33 of the display control unit 14 switches the switch operation monitoring unit. In response to the determination result from 31, for example, as shown in the above screen (1) shown in FIG. 3A, the cursor indicates (the item indicated by the cursor in the figure is displayed with diagonal lines). The display control is switched to display additional explanations. This display is hereinafter referred to as help display (1) (“item help” display).
For example, the predetermined time Tm is set as the time required for the beginner's average operation time interval on the operation menu screen.
In the state where the help display (1) is additionally displayed, the help display control unit 33 switches the content of the help display (1) in accordance with the movement of the cursor.
This display switching is performed on the assumption that the meaning cannot be swallowed by a menu item described with a very simple headline because the operator is unfamiliar.

  Similarly, when the switch operation monitoring unit 31 determines that the switch operation waiting time tm exceeds the threshold time Tam set for each operation menu screen m, the help display control unit 33 determines the determination result from the switch operation monitoring unit 31. As shown in FIG. 3B, for example, in the case of the above screen (1), the description of the operation menu screen in the lower hierarchy of the item is made simultaneously with the more specific description of the item indicated by the cursor. Switch the display control to display additional items. This display is hereinafter referred to as help display (2) (“item help + lower hierarchy help” display).

As the threshold time Tam, an average value of the operation waiting time tm stored in the history storage unit 32 stored in the history storage unit 32 as the operation time interval history is used. In the stage where the operation time interval history is not yet stored, the threshold time Tam is set to be the same as Tm as a preset value.
This display switching is performed on the assumption that the operator is unfamiliar with the operation menu screen and cannot immediately remember what operation menu item is assumed in the lower layer of the menu item. Thus, when an operation menu screen that is selected only by chance is selected and the operation takes longer than before, a help display (2) is made.
In the state where the help display (2) is additionally displayed, the help display control unit 33 switches the content of the help display (2) in accordance with the movement of the cursor.

  Further, when the help display control unit 33 determines that the switch operation monitoring unit 31 has performed an operation of returning to the operation menu screen after exceeding the threshold number Lam set for each operation menu screen m, the switch operation monitoring unit 31. In response to the determination result from FIG. 3, for example, as in the case of the screen (1) shown in FIG. 3C, switching is performed so that the item on the operation menu screen in the lower hierarchy of the item indicated by the cursor is additionally displayed. This display is hereinafter referred to as help display (3) ("lower hierarchy help" display).

As the threshold number Lam, the average value of the switch operation frequency history for returning to the operation menu screen stored in the history storage unit 32 is used. In a stage where the return switch operation frequency history has not yet been stored, the threshold frequency Lam is set as a preset value on the operation menu screen assuming, for example, a value greater than the average return operation frequency for beginners.
This display switching is performed on the assumption that the operator is unfamiliar with the hierarchical structure of the operation menu screen and therefore does not know what item is assumed in the lower layer of the menu item. As a result, when an operation menu screen that is selected only by chance is selected, or when the operation menu screen is selected for the first time, the selection and return operations are repeated repeatedly up and down the hierarchical structure. Display (3) is made.
In the state where the help display (3) is additionally displayed, the help display control unit 33 switches the content of the help display (3) in accordance with the movement of the cursor.

The help display control will be described below.
4 to 6 are flowcharts showing the flow of help display control. This control is mainly processed as a program in the switch operation monitoring unit 31 and the help display control unit 33.
In step 101, the switch operation monitoring unit 31 reads the switch operation time interval history data from the backup RAM 43 through the information processing unit 12 together with the predetermined time Tm and the threshold time Tam to the history storage unit 32.
In step 102, the switch operation monitoring unit 31 reads the return switch operation history data from the backup RAM 43 through the information processing unit 12 into the history storage unit 32 together with the threshold number Lam.

In step 103, the switch operation monitoring unit 31 initializes the return count. Specifically, the return operation count Lm to the operation menu screen m is set to 0 at the start of this series of operations. Further, the flag JFm indicating that the operation menu screen m has been entered through this series of operations is set to 0. After step 103, the process proceeds to step 104.
In step 104, the control unit 13 displays an operation menu screen on the display device 3 via the information processing unit 12 and the display control unit 14 by the operation of the input unit 2 by the operator.
In step 105, the switch operation monitoring unit 31 detects the current operation menu screen name as m via the display control unit 14. When it is detected that the operation menu screen m is displayed, JFm = 1 is set. After step 105, the process proceeds to step 106.

In step 106, the switch operation monitoring unit 31 starts a timer tm. Thereby, the operation waiting time on the operation menu screen m is measured. After step 106, the process proceeds to step 107.
In step 107, it is checked whether the operation waiting time tm is equal to or longer than a predetermined time Tm. If it is less than the predetermined time Tm, the process proceeds to step 109. If it is equal to or longer than the predetermined time Tm, the process proceeds to step 108 to instruct the help display control unit 33 to additionally display the “item help” display of the help display (1), and then proceeds to step 109. After commanding in step 108, when returning to the operation menu screen m again in this series of menu operations, this help display is made unless another help display command is issued.

  In step 109, it is checked whether the operation waiting time tm is equal to or longer than the threshold time Tam. If it is less than the threshold time Tam, the process proceeds to step 111. If it is equal to or greater than the threshold time Tam, the process proceeds to step 110, and the help display control unit 33 is instructed to additionally display “item help + lower hierarchy help” display of help display (2). After the command is issued in step 110, when returning to the operation menu screen m again in this series of menu operations, the help display is performed unless another help display command is issued.

In step 111, it is checked whether an operation for changing the operation menu screen has been performed. If an operation for changing the operation menu screen is not performed, the process returns to step 107 and continues to wait for the operation. When an operation for changing the operation menu screen is performed, the timer is stopped, the switch operation time interval tm is held, and the process proceeds to Step 112.
The operation that changes the operation menu screen means that the menu item is designated by the cursor movement switch 21 of the input unit 2 and the determination switch 22 is turned on, or the return switch 23 is turned on and the operation one level higher. This is the case when returning to the menu screen.

In step 112, it is checked whether or not the history data of the switch operation time interval tm stored in the history storage unit 32 has exceeded a predetermined number N1. If it exceeds, the process proceeds to Step 113, and if not, the process proceeds to Step 116.
In step 113, one of the oldest history data of the switch operation time interval tm on the operation menu screen m is deleted, and the current switch operation time interval tm is stored in the history storage unit 32 as new data. In step 114, the average value T1m of the remaining switch operation time interval tm data excluding the minimum value and the maximum value in the switch operation time interval tm in the history storage unit 32 is calculated. In step 115, the average value Tam of the previous switch operation time interval tm data stored in the history storage unit 32 and the average value T1m are averaged and set as a new average value Tam. After step 115, the process proceeds to step 118.

When the process proceeds from step 112 to step 116, the current switch operation time interval tm is stored in the history storage unit 32 as new data. In step 117, an average of Nm stored histories as the switch operation time interval tm of the operation menu screen m is taken as a new average value Tam. After step 117, the process proceeds to step 118.
In step 118, the new average value Tam is stored in the history storage unit 32.

In step 119, it is checked whether or not the operation detected in step 111 is a completion operation. Here, the completion operation is a screen display state such as a display or search operation or a registration operation for the purpose selected on the operation menu screen.
If it is not a completion operation but a state of a series of operation menu screens, the process proceeds to step 120.
If it is a completion operation, the process proceeds to step 126.

In step 120, it is checked whether or not the operation detected in step 111 is an operation of the return switch 23. The operation of changing the operation menu screen without operating the return switch 23 is an operation of turning on the decision switch 22 and displaying a new operation menu screen in the lower hierarchy of the previous operation menu screen. In this case, the process returns to step 104 to display another operation menu screen m.
If it is detected in step 120 that the return switch 23 is turned on, an operation new screen m ′ that is one level higher than the previous operation menu screen m is displayed in step 121.
In step 122, m ′ is detected as the current operation menu screen name via the display control unit 14, and in step 123, the return switch operation count Lm ′ to the operation menu screen m ′ is added once.

In step 124, it is checked whether the return switch operation count Lm ′ is equal to or greater than the threshold value Lam ′. If the return switch operation count Lm ′ is less than the threshold value Lam ′, the process returns to Step 106. If the return switch operation count Lm ′ is greater than or equal to the threshold value Lam ′, the process proceeds to step 125 to instruct the help display control unit 33 to additionally display the “lower hierarchy help” display of the help display (3). After the command is issued in step 125, when returning to the operation menu screen m ′ again in this series of menu operations, this help display is performed unless another help display command is issued. After step 125, the process returns to step 106.
When the process returns to step 106 after step 124 or 125, the operation menu screen m ′ is re-read instead of the operation menu screen m from step 106 to step 119 including the flow of branching on the way.

When the process proceeds from step 119 to step 126, the operation history data stored in the history storage unit 32 is stored in the backup RAM 43. At this time, the return switch operation history data is stored after an average value calculation process described later in FIG.
As described above, the operation through the series of hierarchical operation menu screens is completed.

Next, the flow of control for storing operation history data will be described with reference to FIG.
When the operation on the series of operation menu screens is completed, the switch operation monitoring unit 31 calculates the average value of the number of times of performing the operation for returning to each operation menu screen m. This average value calculation is performed for each argument m.
In step 201, the argument is initialized (m = 1).
In step 202, it is checked whether or not the number of history data of the return switch operation frequency Lm stored in the history storage unit 32 exceeds the predetermined number N2. If so, the process proceeds to step 203; otherwise, the process proceeds to step 206.
In Step 203, when JFm = 1, the return switch operation frequency Lm is stored in the history storage unit 32 as new data this time, and the oldest data of the return switch operation frequency history data to the operation menu screen m is deleted. To do. In step 204, the average value L1m of the remaining return switch operation count Lm data excluding the minimum and maximum values of the return switch operation count Lm in the history storage unit 32 is calculated. In step 205, the average value Lam of the previous return switch operation number Lm data stored in the history storage unit 32 and the average value L1m are averaged and set as a new average value Lam. After step 205, the process proceeds to step 208.

When the process proceeds from step 202 to step 206, if JFm = 1, the current return switch operation count Lm is stored in the history storage unit 32 as new data. In step 207, the average of Km stored in the history is taken as the number Lm of switch operations for returning to the operation menu screen m, and the result is set as a new average value Lam. After step 207, the process proceeds to step 208.
In step 208, the new average value Lam is stored in the history storage unit 32.

In step 209, it is checked whether or not the argument m has reached Max of the total number of operation menu screens. If not, the process proceeds to step 210, m = m + 1 is set, the process returns to step 202, and steps 202 to 209 are repeated.
In step 209, when the argument m reaches Max, the process proceeds to step 211, in which the history data of the switch operation time interval including the average value Tam and the history data of the number of return switch operations including the average value Lam are stored in the backup RAM 43. To do.

  In the above calculation of the average value of the number of return switch operations, only when the operation menu screen m is entered in this series of operations (that is, when JFm = 1), the history data is stored even when Lm = 0, and the operation menu is displayed. This is used to calculate the average value Lam of the number of switch operations for returning to the screen m. In a series of operations, it is natural that the return switch operation count to the unused operation menu screen m is 0, and storing it as history data is prevented by setting the flag JFm = 0. Yes.

In the flowchart of the present embodiment, steps 101 to 107, step 109, and steps 111 to 124 constitute proficiency level determination means of the present invention, and steps 108, 110, and 125 constitute switching means. In particular, step 106 constitutes a timing means, step 120 constitutes a return operation detection means, steps 103 and 123 constitute a return frequency counting means, and step 119 constitutes a selection operation completion detection means.
Further, the help displays (1), (2), and (3) of the present embodiment are auxiliary displays according to the present invention, the predetermined time Tm is a first predetermined operation time interval, and the threshold time Tam is a second time. In a predetermined operation time interval, the threshold number Lam corresponds to the predetermined number of times.

As described above, according to the present embodiment, the switch operation waiting time is measured for each operation menu screen m, and if the predetermined time Tm is set to be equal to or longer than the average operation time required for a beginner level person, If a person is a beginner, the proficiency level is determined, and since “item help” is displayed after a predetermined time Tm, this help display is not displayed for a proficient person, and only the beginner's stage is automatically displayed. .
In addition, the switch operation waiting time is measured for each operation menu screen m, and the threshold time Tam, which is an average value of the operation time interval, is automatically updated according to the proficiency level based on the history data of the operation time interval. So, if you have mastered the operation menu screen that you used before, but if you forget it now, the item help + lower level help will be displayed above the threshold time Tam. When the user stumbles on the menu screen m, a help display is automatically displayed at an early timing even for a skilled person.

  Further, the number of return switch operations for each operation menu screen m is counted, and the threshold number Lam, which is an average value of the number of return operations, is automatically updated according to the proficiency level based on the history data of the number of return switch operations. If you are used to other operation menu screens but are not familiar with the hierarchical structure of the menu items below it, you should be able to use the menu structure many times. When the up / down operation is performed, the help display is automatically displayed at an early timing even if the proficiency level during the switch operation time is not determined to be unfamiliar.

In addition, this help display control is not a change in the display contents or layout of the operation menu screen, but a change in whether or not the help display is automatically displayed. Therefore, even beginners and experts can display the base portion of the operation menu screen. The hierarchical structure of contents and menu display is the same.
Therefore, it is possible to prevent the operator from being confused when switching to the operation menu screen for proficiency, which occurs when switching and displaying a plurality of operation menu screens according to the proficiency level, and the operation menu screen according to the proficiency level Appropriate display can be made.
In this embodiment, the operation menu switching device in the in-vehicle navigation system has been described. However, the present invention is not limited to this, and the present invention can be applied to a hierarchical GUI display such as a personal computer.

  In the present embodiment, the information processing unit 12, the control unit 13, the display control unit 14, and the voice control unit 15 of the navigation ECU 1 are connected via the bus 11, but are not limited thereto. These may be replaced with one CPU.

It is a figure which shows the block configuration of embodiment of this invention. It is a figure explaining the hierarchical structure of an operation menu screen. It is a figure explaining a help display. It is a flowchart which shows control of a help display. It is a flowchart which shows control of a help display. It is a flowchart which shows control of a help display. It is a flowchart which shows the control which memorize | stores operation history data.

Explanation of symbols

1 Navigation ECU
2 Input unit 3 Display device 4 External storage device 5 GPS device 6 Sensor unit 7 Speaker 11 Bus 12 Information processing unit 13 Control unit 14 Display control unit 15 Voice control unit 21 Cursor movement switch 22 Decision switch 23 Return switch 24 Current location switch 25 Menu Switch 31 Switch operation monitoring unit 32 History storage unit 33 Help display control unit 41 ROM
42 RAM
43 Backup RAM

Claims (11)

A display device for selectively displaying a plurality of operation menus;
A display control unit that performs switching control of an operation menu screen based on data of a hierarchical correspondence between the plurality of operation menus;
An input unit for inputting an operation instruction in an operation menu displayed on the display device;
Proficiency level judging means for judging proficiency level for selecting the next screen for each operation menu screen;
An operation menu switching device comprising switching means for instructing the display control unit to switch menu display so as to additionally display an auxiliary display on the operation menu screen in accordance with a proficiency level. The proficiency level determination means includes time measuring means for measuring an operation waiting time until an operation instruction for selecting the next screen is input after the operation menu is displayed, and the operation waiting time and a predetermined operation time are measured. The operation menu switching device according to claim 1, wherein the proficiency level for each operation menu screen is determined by comparing intervals. The switching means waits for the operation so as to additionally display a description of the menu item itself as the auxiliary display when the proficiency level determination means determines that the operation waiting time is equal to or greater than a first predetermined operation time interval. When it is determined that the time is equal to or longer than the second predetermined operation time interval, the menu display is switched so that the description of the menu item itself and the menu item of the lower-level operation menu screen are additionally displayed as the auxiliary display. 3. The operation menu switching device according to claim 2, wherein an instruction is given. The operation menu screen further includes a history storage unit that stores an operation history of the input unit, and displays an operation time interval from when the operation menu screen is displayed until an operation instruction for selecting a next screen is input. Memorize | stored in the said log | history memory | storage part for every,
The second predetermined operation time interval is calculated based on an average value of the operation time intervals for each operation menu screen of past operation histories stored in the history storage unit. 4. The operation menu switching device according to 3. The proficiency level determination means includes a return operation detection means for detecting that the input unit has been operated to return to the upper operation menu screen, and a return frequency count for counting the number of return operations for each operation menu screen. Means,
The operation menu switching device according to claim 1, wherein a proficiency level for selecting a next screen for each operation menu screen is determined according to the number of return operations to the operation menu screen. The switching means is configured such that the proficiency level determining means additionally displays a menu item on an operation menu screen in a lower layer of the menu item as the auxiliary display when the number of return operations is equal to or greater than a predetermined number. 6. The operation menu switching device according to claim 5, wherein a display switching instruction is issued. Furthermore, a selection operation completion detection unit that determines whether or not a series of menu selection operations has been completed, and a history storage unit that stores an operation history of the input unit, the operation menu when the series of menu selection operations are completed Store the number of return operations to the screen in the history storage unit for each operation menu screen,
The predetermined number of times is calculated based on an average value of the number of times of the return operation for each operation menu screen in the past operation history stored in the history storage unit. Operation menu switching device. The operation menu switching device according to claim 3 or 6, wherein the display control unit additionally displays the auxiliary display only for the menu item specified on the operation menu screen by the input unit. . A display device for selectively displaying a plurality of operation menus;
A display control unit that performs switching control of an operation menu screen based on data of a hierarchical correspondence between the plurality of operation menus;
An input unit for inputting an operation instruction in an operation menu displayed on the display device;
Proficiency level judging means for judging proficiency level for selecting the next screen for each operation menu screen;
Switching means for instructing the display control unit to switch menu display so as to additionally display on the operation menu screen corresponding to the proficiency level,
The proficiency level determining means includes a time measuring means for measuring an operation waiting time until an operation instruction for selecting the next screen is input after the operation menu is displayed, and the input unit is operated to operate the input section. Return operation detecting means for detecting return to the operation menu screen, and return number counting means for counting the number of return operations for each operation menu screen,
When the proficiency level determination means compares the operation waiting time with a predetermined operation time interval and determines that the operation waiting time is equal to or greater than a first predetermined operation time interval, the switching means explains the menu item itself. When it is determined that the operation waiting time is equal to or longer than the second predetermined operation time interval, the description of the menu item itself and the menu item on the lower-level operation menu screen are additionally displayed. When it is determined that the number of return operations is equal to or greater than a predetermined number, the display control unit is instructed to switch menu display so as to additionally display a menu item on an operation menu screen in a lower layer of the menu item. Operation menu switching device. In the vehicle navigation system that reads travel guidance data stored in an external storage device based on the input vehicle position information and the travel state information of the vehicle, and displays a travel guidance image by display means. An in-vehicle navigation system comprising the operation menu switching device according to any one of Items 1 to 9. Multiple operation menus can be selectively displayed based on their hierarchical correspondence,
Based on a predetermined proficiency level determination parameter provided for each operation menu screen, the proficiency level for selecting the next screen is determined, and an auxiliary display is additionally displayed on the operation menu screen according to the determined proficiency level. Operation menu switching method to control menu display.

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