JP2012068909A - Display processor, display processing method and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display processor, a display processing method and a computer program which guide improvement of scroll speed by a proper method.SOLUTION: The display processor is constituted so that a map image 61 of the surroundings of a vehicle is displayed on a liquid crystal display 15 (S2), when an operation for performing scroll display of the map image 61 is accepted, the scroll display of the map image 61 is performed (S4), on the other hand, a theoretical value and an actual value of the scroll speed are acquired, respectively (S5, S6), ratio of the actual value to the theoretical value of the scroll speed is calculated (S7), when the calculated ratio is less than second ratio, a function name of a function which becomes a cause that the scroll speed decreases to the theoretical value is guided among functions which are executed by a navigation device 1 (S14).

Description

  The present invention relates to a display processing apparatus, a display processing method, and a computer program that perform scroll display of images.

  2. Description of the Related Art Conventionally, in a display processing apparatus including a display such as an in-vehicle navigation device, a portable information device such as a PDA (Personal Digital Assistant) or a mobile phone, a portable music player, a portable game device, a personal computer, etc. On the other hand, various images such as map images, icons and windows are displayed. On the other hand, the display processing apparatus includes a keyboard, a controller, a touch panel, and the like as means for receiving a user operation. The display processing device has a function of selecting an image displayed on the display or scrolling the selected image based on an operation received from the user.

  The display processing apparatus performs various functions in addition to functions related to image display. For example, a navigation device will be described as an example, which includes a communication function with a VICS center, a route search function, a travel guidance function, a music playback function, and the like. In order to implement these functions, the display processing device performs numerical calculation, information processing, device control, and the like by an arithmetic device (CPU, GPU, etc.). However, the processing performance of the arithmetic device is determined in advance, and if a plurality of functions are executed at the same time, there is a case where a part of the processing is omitted or a so-called processing failure occurs in which the processing completion time is delayed.

  Here, a navigation device as one of the display processing devices has a function of displaying a map image around the current position of the vehicle and a function of scrolling and displaying a map image displayed based on a user operation. However, due to the occurrence of the processing failure, if the scroll speed when the map image is scroll-displayed by the navigation device becomes slow, there is a problem that it is not possible to guide the vehicle to travel appropriately. In view of this, for example, Japanese Patent Application Laid-Open No. 2000-241176 describes a technique for adjusting the data drawing amount when performing scroll display so that the scroll speed is not slowed down.

JP 2000-241176 A (3rd page, FIG. 2)

  However, as in the technique described in Patent Document 1, if the amount of data drawn when scroll display is performed in order to maintain the scroll speed, the user can correctly recognize the contents of the map image during scroll display. There is a possibility of not being able to. In other words, in order to maintain the scrolling speed, if the navigation device is controlled so as not to unilaterally perform some functions (for example, drawing of a specific target), functions not intended by the user are stopped (for example, the specific target). May be deleted from the map screen). Further, in the conventional technique, the user cannot grasp the function that causes the scroll speed to decrease.

  The present invention has been made to solve the above-described conventional problems, and when the scroll speed of the image is decreased, the user can grasp the function that causes the decrease of the decrease and appropriately An object of the present invention is to provide a display processing device, a display processing method, and a computer program that can lead to an improvement in scroll speed by a simple method.

In order to achieve the above object, a display processing device (1) according to claim 1 of the present application displays an image (61) in a display processing device that performs various types of functions by executing various programs. Based on the display device (15), operation accepting means (36) for accepting a user operation, and the user operation accepted by the operation accepting means, the image displayed on the display device is scrolled on the display device. Scroll display means (37) for displaying, scroll speed theoretical value acquisition means (38) for acquiring a scroll speed theoretical value corresponding to the user's operation of the scroll speed of the image by the scroll display means, and the scroll display means The scroll speed at which the measured value of the scroll speed of the image is acquired as the measured scroll speed. Measured value acquisition means (39), speed comparison means (40) for comparing the scroll speed theoretical value with the scroll speed measured value, and a comparison result by the speed comparison means. And a guide means (41) for guiding a function name.
The “scroll speed theoretical value” is a scroll speed value assumed in advance in the design stage, and is realized when the scroll display process is performed when there is a margin in the processing performance of the processor of the display processing device.

  Further, the display processing device (1) according to claim 2 is the display processing device according to claim 1, wherein the speed comparison means (40) is a ratio of the scroll speed measured value to the scroll speed theoretical value. The guide means (41) guides the function name when the ratio calculated by the ratio calculation means is less than a predetermined value.

  A display processing device (1) according to claim 3 is the display processing device according to claim 1 or 2, wherein a touch panel (14) arranged in front of a display area of the display device (15). And the display area of the display device is composed of a plurality of areas, and the scroll speed theoretical value is associated with each area, and the operation receiving means (36) The scroll speed theoretical value acquisition means (38) receives a user's operation, and acquires the scroll speed theoretical value associated with the region including the coordinates touched by the user on the touch panel. .

  A display processing device (1) according to a fourth aspect is the display processing device according to any one of the first to third aspects, wherein for each function implemented by the display processing device, the function is provided. The processing load value acquisition unit (42) for acquiring the processing load value of the display processing device when the display processing device is implemented, and the guide unit (41) is provided for each function acquired by the processing load value acquisition unit. Based on a processing burden value, the degree of improvement in the scroll speed when the function implemented in the display processing device is stopped is guided for each function implemented in the display processing device. To do.

  The display processing device (1) according to claim 5 is the display processing device according to claim 4, and displays a map image as the image (61) on the display device (15) at a predetermined scale. A map image display means (43); and a scale acquisition means (44) for acquiring a scale of the map image displayed on the display device, wherein the processing burden value acquisition means (42) For each of the functions implemented by the processing device, a processing burden value of the display processing device when the function is implemented in a state where the map image is displayed on the display device by the scale acquired by the scale acquisition means. It is characterized by acquiring.

  A display processing device (1) according to claim 6 is the display processing device according to any one of claims 1 to 5, wherein the guide means (41) is the display processing device (15). A predetermined number of the function names are displayed in a list on the display device in descending order of improvement in the scroll speed when the function is stopped.

  A display processing device (1) according to claim 7 is the display processing device according to any one of claims 1 to 6, wherein the function name guided by the guiding means (41) is selected. And a function stop means (46) for stopping the function corresponding to the function name selected by the function selection means in the display processing device.

  Further, the display processing device (1) according to claim 8 is the display processing device according to any one of claims 1 to 7, wherein the scroll display means (37) in the operation receiving means (36). Operation determining means (47) for determining whether or not an operation for improving the scrolling speed of the image is accepted, and the guiding means (41) improves the scrolling speed of the image by the operation determining means. The function name is guided when it is determined that an operation has been accepted.

  The display processing method according to claim 9 is a display processing method of the display processing device (1) that performs various types of functions by executing various programs, and accepts a user operation. A scroll display step of scrolling and displaying the image displayed on the display device (15) displaying the image (61) on the display device based on the user operation received in the operation accepting step; A scroll speed theoretical value acquisition step for acquiring a scroll speed theoretical value corresponding to the user's operation of the scroll speed of the image by the scroll display step, and an actual scroll speed value of the image by the scroll display step. Scroll speed actual value acquisition step acquired as A speed comparison step for comparing the scroll speed theoretical value and the scroll speed actual measurement value, and a guidance step for guiding a function name implemented in the display processing device based on a comparison result of the speed comparison step. It is characterized by that.

  Furthermore, the computer program according to claim 10 is mounted on a display processing device (1) that executes various types of functions by executing various programs on a processor, and receives an operation of a user. A scroll display function for scrolling and displaying the image displayed on the display device (15) for displaying the image (61) on the display device based on the user operation received in the operation receiving step, and the scroll display function A scroll speed theoretical value acquisition function for acquiring a scroll speed theoretical value corresponding to the user's operation of the scroll speed of the image, and an actual value of the scroll speed of the image by the scroll display function as a scroll speed actual value. Scroll speed actual value acquisition function and the scroll The processor executes a speed comparison function for comparing the theoretical speed value and the actual scroll speed value, and a guidance function for guiding a function name implemented in the display processing device based on a comparison result by the speed comparison function. It is characterized by making it.

  According to the display processing device having the above-described configuration, when scrolling an image, the user scrolls the function name of the function that causes the scroll speed to be lower than the theoretical value. It is possible to provide guidance in situations where speed improvement is desired. As a result, the scroll speed can be improved by an appropriate method.

  Moreover, according to the display processing apparatus of Claim 2, it becomes possible to grasp | ascertain appropriately the condition where a user desires the improvement of scroll speed.

  Further, according to the display processing device of the third aspect, since the scroll direction and the speed in the scroll display of the image are selected based on the operation content of the operation using the touch panel, the degree of freedom reflecting the user's intention can be obtained. A high-image scroll display can be performed. Further, it is possible to appropriately specify the theoretical value of the scroll speed corresponding to the user operation based on the received operation of the touch panel.

  In addition, according to the display processing device of the fourth aspect, when the function name is guided, the improvement degree of the scroll speed when the function implemented in the display processing device is stopped is also guided for each function. Therefore, it becomes possible for the user to grasp how much the scroll speed is improved when the function is stopped for each guided function.

  Further, according to the display processing device of claim 5, since the degree of improvement is calculated when the function is stopped in consideration of the scale of the map displayed on the navigation device 1, a more accurate value of the degree of improvement is calculated. It is possible to calculate.

  According to the display processing device of claim 6, even if there are many functions implemented in the display processing device, the function name that is effective information for improving the scrolling speed is given to the user. It is possible to guide with easy understanding. Further, since the amount of information to be guided can be limited, there is no possibility that the viewing of the image is hindered by unnecessary guidance.

  Further, according to the display processing device of the seventh aspect, since the function corresponding to the function name selected by the user among the guided function names is stopped, the display processing device It is possible to reduce the processing load and improve the image scrolling speed.

  Further, according to the display processing device of the eighth aspect, it is possible to more accurately specify the situation in which the user desires the scroll speed improvement based on the operation received from the user. Therefore, in a situation where the user desires to improve the scroll speed, it is possible to more reliably guide the function name of the function that causes the scroll speed to be lower than the theoretical value.

  According to the display processing method of claim 9, when performing scroll display of an image in the display processing device, the function name of the function causing the scroll speed to be lower than the theoretical value is obtained by the user. Can be guided in a situation where it is desired to improve the scroll speed. As a result, the scroll speed can be improved by an appropriate method.

  Furthermore, according to the computer program of the tenth aspect, when scroll display of an image is performed in the display processing device, the function name of the function that causes the scroll speed to be lower than the theoretical value is displayed by the user. It is possible to guide in situations where improvement is desired. As a result, the scroll speed can be improved by an appropriate method.

It is the block diagram which showed the navigation apparatus which concerns on this embodiment. It is the figure which each showed the processing burden regulation table corresponding to the scale of a map to 1/10000 and 1 / 80,000. It is the figure which showed the structure of navigation ECU. It is the figure which showed an example of the driving guidance screen displayed on a liquid crystal display during driving | running | working of a vehicle. It is a figure explaining the scroll display mode of the map image in the case of performing one-touch scroll processing. It is a figure explaining the scroll display aspect of the map image in the case of performing a continuous scroll process. It is a flowchart of the scroll display processing program which concerns on this embodiment. It is the figure which showed an example of the driving | running | working guidance screen on which the function name of the function used as the factor which reduces scroll speed by the scale of 1/10000 was displayed. It is the figure which showed an example of the driving | running | working guidance screen on which the function name of the function used as the factor which reduces a scroll speed by 1 / 80,000 scale was displayed. It is the figure which showed an example of the driving guidance screen after the one part function implemented with the navigation apparatus was stopped.

  Hereinafter, a display processing device according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the navigation device is embodied. First, a schematic configuration of the navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to this embodiment.

  As shown in FIG. 1, the navigation device 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of a vehicle on which the navigation device 1 is mounted, a data recording unit 12 that records various data, Based on the input information, the navigation ECU 13 that performs various arithmetic processes, the touch panel 14 that receives operations from the user, the liquid crystal display 15 that displays a map around the vehicle, a facility search screen, and the like to the user, and a route Communication that performs communication between a speaker 16 that outputs voice guidance related to guidance, a DVD drive 17 that reads a DVD as a storage medium, and an information center such as a probe center or VICS (registered trademark: Vehicle Information and Communication System) center. And module 18.

Below, each component which comprises the navigation apparatus 1 is demonstrated in order.
The current position detection unit 11 includes a GPS 21, a vehicle speed sensor 22, a steering sensor 23, a gyro sensor 24, and the like, and can detect the current vehicle position, direction, vehicle traveling speed, current time, and the like. . Here, in particular, the vehicle speed sensor 22 is a sensor for detecting a moving distance and a vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs a pulse signal to the navigation ECU 13. And navigation ECU13 calculates the rotational speed and moving distance of a driving wheel by counting the generated pulse. Note that the navigation device 1 does not have to include all of the above five types of sensors, and the navigation device 1 may include only one or more of these types of sensors.

  In addition, the data recording unit 12 reads an external storage device and a hard disk (not shown) as a recording medium, a map information DB 31 recorded on the hard disk, a processing load regulation table 32, a predetermined program, etc. And a recording head (not shown) which is a driver for writing data. The data recording unit 12 may be configured by a memory card, an optical disk such as a CD or a DVD, instead of the hard disk. The data recording unit 12 also stores VICS information acquired from the VICS center and statistical data relating to past traffic jams.

  Here, the map information DB 31 includes, for example, link data relating to roads (links), node data relating to node points, point data relating to points such as facilities, map display data for displaying maps, intersection data relating to each intersection, and routes. It is a storage means in which search data for searching, search data for searching for points, and the like are stored.

  The processing load regulation table 32 is a table showing the processing load values of the processors (CPU, GPU, etc.) for each function implemented in the navigation device 1. The processing burden value is specified by, for example, a MIPS value. The MIPS value is a unit that represents the processing capability of the computer, and is a value that indicates how many times the computer can execute instructions per second. In addition, the processing load regulation table 32 has a processing load value for each scale of the map displayed on the liquid crystal display 15 (16 steps from 1/1250 to 1 / 20880,000) (that is, the map image 61 at the scale for each scale). The processing burden value of the processor when each function is performed in a state in which is displayed on the liquid crystal display 15.

For example, FIG. 2 is a diagram showing the processing load regulation table 32 corresponding to the scale of the displayed map being 1/10000 and 1 / 80,000. As shown in FIG. 2, the processing burden value for each function is determined in advance for each display scale of the map image. For example, in a state where a 1/10000 map is displayed, a point such as a facility (parking lot, gas station, The processing load of the “POI display function” for displaying a POI (such as a mark or name indicating a point) on a map image is 200 (MIPS), and the VICS information is displayed on the map image. The processing load of the “VICS display function” is 150 (MIPS), and the processing load of the “statistical data display function” for displaying the traffic jam prediction based on the past statistical data on the map image is 300 (MIPS). On the other hand, in the state where the 1 / 80,000 map is displayed, the processing load of the “POI display function” is 100 (MIPS), the processing load of the “VICS display function” is 300 (MIPS), and “statistical data” The processing load of “display function” is 600 (MIPS). The reason why the processing load varies depending on the scale of the map displayed on the liquid crystal display 15 as described above is that the area and link of map data to be displayed differ depending on the scale. For example, when the scale is reduced, the area to be displayed is increased, and the number of main roads to which VICS information is displayed is increased. Therefore, the processing load of the “VICS information function” increases. Similarly, when the scale is reduced, the area to be displayed is widened, and the number of roads on which traffic congestion prediction based on past statistical data is displayed is increased. Therefore, the processing load of the “statistical data display function” is also increased. On the other hand, when the scale is reduced, the area of the map data to be displayed is widened, but the POI to be displayed is not displayed (thinned out) except for some main POIs. Therefore, the processing load of the “POI display function” is reduced.
As will be described later, the navigation ECU 13 uses the processing load regulation table 32 to provide guidance for improving the scroll speed.

  On the other hand, the navigation ECU (Electronic Control Unit) 13 is an electronic control unit that controls the entire navigation device 1. The CPU 51 as an arithmetic device and a control device, and a working memory when the CPU 51 performs various arithmetic processes. Read out from the ROM 53 and ROM 53 in which a RAM 52 for storing route data when a route is searched, a control program, a scroll display processing program (see FIG. 7) described later, and the like are recorded. And an internal storage device such as a flash memory 54 for storing the program. In addition to the CPU 51 as a processor, the navigation device 1 includes a GPU (not shown) that is provided integrally with or separate from the CPU 51 and mainly executes various processes related to image processing. The navigation ECU 13 constitutes various means as the processing algorithm shown in FIG. For example, the guide route setting means 35 sets a guide route from the departure place to the destination. The operation receiving unit 36 receives a user operation, and the scroll display unit 37 scrolls and displays an image (for example, a map image) displayed on the liquid crystal display 15 on the liquid crystal display 15 based on the received user operation. The scroll speed theoretical value acquisition means 38 acquires a scroll speed theoretical value corresponding to the user's operation of the image scroll speed by the scroll display means 37, and the scroll speed actual measurement value acquisition means 39 scrolls the image by the scroll display means 37. The actual speed value is acquired as the actual scroll speed value. The speed comparison means 40 compares the theoretical scroll speed value and the actual scroll speed value, and the guidance means 41 guides the function name implemented in the navigation device 1 based on the comparison result by the speed comparison means 40. The processing burden value acquisition unit 42 acquires the processing burden value of the navigation device 1 when the function is performed for each function performed by the navigation device 1, and the map image display unit 43 displays an image on the liquid crystal display 15. The map image is displayed at a predetermined scale, and the scale acquisition means 44 acquires the scale of the map image displayed on the liquid crystal display 15. The function selecting unit 45 selects the function name guided by the guiding unit 41, and the function stopping unit 46 stops the function corresponding to the function name selected by the function selecting unit 45 in the navigation device 1. The operation determination unit 47 determines whether an operation for improving the scrolling speed of the image by the scroll display unit 37 has been received.

  The touch panel 14 is disposed in front of the display area of the liquid crystal display 15 and is operated when performing a scroll display of a map image or selecting a button disposed in the display area. Then, the navigation ECU 13 performs “touch-on” in which the user touches the touch panel 14 from a state in which the user does not touch the touch panel 14 based on a detection signal output from the touch panel 14 by the operation of the touch panel 14, Detects “touch-off” that shifts from a touched state to a non-touched state. Also, “touch coordinates” and “displacement of touch coordinates” which are the coordinates of the point touched by the user are also detected. Then, the navigation ECU 13 performs control to execute various operations corresponding to the detected touch operation, touch coordinates, and the like.

  The liquid crystal display 15 also includes a map image including a road, traffic information, operation guidance, operation menu, key guidance, a planned travel route from the departure point to the destination, guidance information along the planned travel route, news, weather Forecast, time, mail, TV program, etc. are displayed. Moreover, it is used also when displaying the information regarding the searched point when a point search is performed. Here, FIG. 4 is a diagram showing an example of a travel guidance screen 60 displayed on the liquid crystal display 15 while the vehicle is traveling.

  As shown in FIG. 4, the driving guidance screen 60 displayed on the liquid crystal display 15 includes a map image 61 around the current position of the vehicle, a vehicle position mark 62 indicating the current position of the vehicle matched on the map, A center cursor 63 for specifying the center position of the map display area and various buttons 64 to 68 for selecting a predetermined function in the navigation device 1 are displayed. In addition, the map image 61 includes a POI 70 related to a facility point (parking lot, gas station, restaurant, convenience store, etc.), a VICS traffic congestion mark 71 indicating the traffic congestion level based on the VICS information acquired from the VICS center, and past statistical data. A statistical traffic jam mark 72 indicating a traffic jam prediction based on is displayed. The POI 70 is formed from marks indicating points such as a parking lot, a gas station, a restaurant, and a convenience store, and is displayed at the coordinates where the points are located. The VICS congestion mark 71 is a mark that specifies the degree of congestion of each road section specified by the VICS information as “congested”, “congested”, or “vacant”. The statistical traffic congestion mark 72 is a mark that specifies the traffic congestion degree of each road section predicted by past statistical data as one of “congested”, “congested”, and “vacant”. The VICS traffic congestion mark 71 is mainly displayed on the main road, and the statistical traffic congestion mark 72 is mainly displayed on the road that is not subject to the VICS information. FIG. 4 shows a travel guidance screen 60 when a map is displayed at a scale of 1/10000. By referring to the travel guidance screen 60, the user can grasp the current point information around the vehicle, the road shape (including the guidance route when a guidance route is set), the traffic situation, and the like. It becomes. Further, when the detail button 64 is touched on and selected, the scale of the map can be changed to a larger scale (for example, a scale of 1/5000). When the display change button 65 is touched on and selected, the display mode (bird's-eye view, plan view, nose-up, north-up, etc.) of the map image 61 can be changed. When the destination set button 66 is touched on and selected, the point indicated by the center cursor 63 can be set as the destination. When the location registration button 67 is touched on and selected, the location indicated by the central cursor 63 can be registered as a registration location in the navigation device 1. Further, when the wide area button 68 is touched on and selected, the scale of the map can be changed to a smaller scale (for example, a scale of 1/2000).

  In addition, when the travel guide screen 60 is displayed, the user may desire to grasp the facility or road shape outside the area displayed on the travel guide screen 60. In that case, it is possible to change the scale of the map to a smaller scale, but it is also possible to scroll the map image. Here, the process of scrolling the map image includes one-touch in addition to the process of scrolling the map image in response to the received drag operation when an operation of selecting the map image and dragging in a predetermined direction is accepted. There are scroll processing and continuous scroll processing.

  First, the one-touch scroll process will be described. The one-touch scrolling process is executed when the CPU 51 detects that the user has touched any part of the display area of the map image 61 on the liquid crystal display 15 only for a predetermined time (for example, 1 sec). Then, the CPU 51 first acquires the coordinates of the point X touched by the user as shown in FIG. Next, the map image 61 is scrolled by a predetermined distance in the direction of the arrow 72 so that the coordinates of the acquired point X become the center position of the display area of the map image 61. As a result, a map image 61 having the point X touched by the user as the center position of the display area is newly displayed on the liquid crystal display 15.

  Next, the continuous scroll process will be described. The continuous scroll process is executed when the CPU 51 detects that the user has been in a touched state for a predetermined time (for example, 1 sec) for any part of the display area of the map image 61 of the liquid crystal display 15 for a predetermined time period or longer. In the continuous scroll process, the scroll direction (any one of the eight directions) and the scroll speed (any one of the low speed and the high speed) are determined according to the coordinates touched by the user on the display screen of the liquid crystal display 15. Here, as shown in FIG. 6, in the first embodiment, the display area of the liquid crystal display 15 is divided into 16 areas 75 to 90. When it is detected that the user touches the areas 75 and 76, the map is scrolled in the direction of the arrow 95. Similarly, when it is detected that the user touches the areas 77 and 78, the map is scrolled in the direction of the arrow 96. When it is detected that the user touches the areas 79 and 80, the map is scrolled in the direction of the arrow 97. When it is detected that the user touches the areas 81 and 82, the map is scrolled in the direction of the arrow 98. When it is detected that the user touches the areas 83 and 84, the map is scrolled in the direction of the arrow 99. When it is detected that the user touches the areas 85 and 86, the map is scrolled in the direction of the arrow 100. When it is detected that the user touches the areas 87 and 88, the map is scrolled in the direction of the arrow 101. When it is detected that the user touches the areas 89 and 90, the map is scrolled in the direction of the arrow 102. Further, when it is detected that the areas 75, 77, 79, 81, 83, 85, 87, 89 near the center are touched, the areas 76, 78, 80, 82, 84, 86, 88, 90 outside are touched. When this is detected, a faster scroll speed theoretical value (hereinafter referred to as a scroll speed theoretical value) is set. The theoretical scroll speed value is a scroll speed value assumed in advance in the design stage, and is realized when scroll display processing is performed when there is a margin in the processing performance of the processor. A theoretical scroll speed value is stored in the RAM 52 or the like for each type of scroll display process (particularly for each touched area in the scroll display based on the continuous scroll operation, and for each drag speed in the scroll display based on the drag scroll operation). .

  The speaker 16 outputs voice guidance for guiding traveling along the guidance route based on an instruction from the navigation ECU 13 and traffic information guidance. It is also used when outputting information related to the found facility when the facility search is performed.

  The DVD drive 17 is a drive that can read data recorded on a recording medium such as a DVD or a CD. Based on the read data, music and video are reproduced, the map information DB 31 is updated, and the like.

  The communication module 18 is a communication device for receiving traffic information composed of information such as traffic jam information, regulation information, and traffic accident information transmitted from a traffic information center, for example, a VICS center or a probe center. For example, a mobile phone or DCM is applicable.

  Next, a scroll display processing program executed by the navigation ECU 13 in the navigation device 1 having the above configuration will be described with reference to FIG. FIG. 7 is a flowchart of the scroll display processing program according to this embodiment. Here, the scroll display processing program is executed after the ACC of the vehicle is turned on, scrolls the map image 61 displayed on the travel guide screen 60 based on the operation received from the user, and the scroll speed is constant. If it is less, the program is a program for guiding the function names implemented in the navigation device 1. Note that the program shown in the flowchart of FIG. 7 below is stored in the RAM 52 and ROM 53 provided in the navigation device 1 and is executed by the CPU 51 and GPU (hereinafter referred to as the CPU 51 and the like).

  First, in step (hereinafter abbreviated as S) 1 in the scroll display processing program, the CPU 51 and the like obtain information relating to the vehicle. The vehicle information acquired in S1 includes, for example, the current position and direction of the vehicle detected by the current position detection unit 11.

  Next, in S <b> 2, the CPU 51 or the like displays a travel guidance screen 60 (FIG. 4) on the liquid crystal display 15. In addition to the map image 61 around the current position of the vehicle as described above, the travel guidance screen 60 also displays the POI 70, the VICS traffic congestion mark 71, and the statistical traffic congestion mark 72 superimposed on the map image 61. Specifically, in S2, the CPU 51 or the like obtains map data of an area to be displayed based on the current position and direction of the vehicle acquired in S1 and the scale of the map set in the navigation device 1 as the map information DB 31. The map image 61 based on the read map data is drawn on the liquid crystal display 15. Similarly, the point data included in the display target area is read from the map information DB 31, and the POI 70 is drawn based on the read point data (POI display function). Further, the VICS information included in the display target area is read from the data recording unit 12, and the VICS congestion mark 71 is drawn based on the read VICS information (VICS display function). Further, statistical data relating to past traffic jams of roads included in the display target area is read from the data recording unit 12, and a statistical traffic jam mark 72 is drawn based on the read statistical data (statistical data display function).

  Subsequently, in S <b> 3, the CPU 51 and the like determine whether or not a scroll operation for scrolling the map image 61 displayed on the liquid crystal display 15 has been received based on the detection signal transmitted from the touch panel 14. Specifically, the CPU 51 or the like makes a determination based on the touch coordinates that are the coordinates of the point where the touch panel 14 is touched or the displacement of the touch coordinates. The scroll operation for scrolling the map image 61 is one of the operation of dragging the map image 61 (hereinafter referred to as “drag scroll operation”) or the display area of the map image 61 of the liquid crystal display 15 as described above. An operation in which the part is touched only for less than a predetermined time (for example, 1 sec) (hereinafter referred to as a one-touch scroll operation), and any part of the display area of the map image 61 on the liquid crystal display 15 is continuously touched for a predetermined time or longer. There are operations for setting the state (hereinafter referred to as continuous scroll operation).

  And when it determines with having received the scroll operation for scroll-displaying the map image 61 displayed on the liquid crystal display 15 (S3: YES), it transfers to S4. On the other hand, when it is determined that the scroll operation for scrolling the map image 61 displayed on the liquid crystal display 15 is not accepted (S3: NO), the map image 61 is not scrolled and displayed. The scroll display processing program is terminated.

  In S4, the CPU 51 or the like scrolls and displays the map image 61 displayed on the liquid crystal display 15 in a predetermined direction at a predetermined speed based on the received user scroll operation. For example, when a drag scroll operation is accepted as the scroll operation, the map image 61 is scroll-displayed at the speed and direction based on the displacement of the touch coordinates being dragged and the amount of displacement. When the one-touch scroll operation is accepted as the scroll operation, the map image 61 is scroll-displayed at a preset speed in the direction based on the touch coordinates (see FIG. 5). When a continuous scroll operation is accepted as the scroll operation, the map image 61 is scroll-displayed at the direction and speed associated with the area to which the touch coordinates belong (see FIG. 6). Note that the scroll display of the map image 61 is basically scrolled at the theoretical value of the scroll speed corresponding to the accepted scroll operation. However, if a plurality of functions other than scroll display are performed in the navigation device 1 and the processing performance of the processor is insufficient for the request, a part of the processing is omitted or the processing completion time is There may be a so-called process omission that is delayed. As a result, the actual scroll speed value may be slower than the theoretical value.

  Subsequently, in S <b> 5, the CPU 51 or the like acquires a theoretical value (scroll speed theoretical value) of the scroll speed for the scroll display of the map image 61 currently implemented in the navigation device 1. The scroll speed theoretical value is stored in the RAM 52 for each type of scroll display processing (particularly for each touched area in the scroll display based on the continuous scroll operation, and for each drag speed in the scroll display based on the drag scroll operation). Yes.

  Thereafter, in S <b> 6, the CPU 51 or the like obtains an actual scroll speed value (scroll speed actual value) for the scroll display of the map image 61 currently implemented in the navigation device 1.

  Next, in S7, the CPU 51 and the like compare the theoretical scroll speed acquired in S5 with the actual measured scroll speed acquired in S6. In the present embodiment, the ratio of the scroll speed measurement value to the theoretical scroll speed value (hereinafter referred to as the scroll speed ratio) is calculated.

  Subsequently, in S8, the CPU 51 and the like determine whether or not the scroll speed ratio calculated in S7 is less than a predetermined first predetermined value. The first predetermined value is 70%, for example.

  When it is determined that the scroll speed ratio is less than the first predetermined value (S8: YES), the process proceeds to S9. On the other hand, when it is determined that the scroll speed ratio is equal to or higher than the first predetermined value (S8: NO), it is estimated that there is no user demand for improving the scroll speed, and guidance for improving the scroll speed is provided. The scroll display processing program is terminated without performing it.

  In S9, the CPU 51 and the like determine whether or not the scroll speed ratio calculated in S7 is less than a predetermined second predetermined value. The second predetermined value is 40%, for example.

  And when it determines with a scroll speed ratio being less than a 2nd predetermined value (S9: YES), it estimates that there exists a user's request which improves a scroll speed, and transfers to S11. On the other hand, when it is determined that the scroll speed ratio is greater than or equal to the second predetermined value (S9: NO), the process proceeds to S10. Note that S7 to S9 correspond to the comparison means.

  In S <b> 10, the CPU 51 and the like determine whether or not an operation for improving the scroll speed of the map image 61 has been received for the scroll display of the map image 61 currently being performed in the navigation device 1. Here, the operation for improving the scrolling speed of the map image 61 is, for example, touched during a scrolling operation, an operation involving a pressure change from weak to strong over a predetermined amount or a continuous scrolling operation. The area 75, 77, 79, 81, 83, 85, 87, 89 (see FIG. 6) close to the center is changed to the outer area 76, 78, 80, 82, 84, 86, 88, 90. Operation is applicable. Even when it is detected that the touch coordinates have moved to the outside even in the same area, it may be determined that an operation for improving the scroll speed of the map image 61 has been received. When the navigation device 1 includes a scroll speed adjustment button, it is determined that an operation for improving the scroll speed of the map image 61 is accepted even when a button operation for increasing the scroll speed is performed. Also good. When such an operation is performed by the user, it is estimated that the user has a desire to improve the scroll speed.

  Therefore, if it is determined that an operation for improving the scroll speed of the map image 61 has been received (S10: YES), it is estimated that there is a user's request to improve the scroll speed, and the process proceeds to S11. On the other hand, when it is determined that an operation for improving the scroll speed of the map image 61 is not accepted (S10: NO), it is estimated that there is no user request for improving the scroll speed, and the scroll speed is The scroll display processing program is terminated without providing guidance for improvement.

  In S <b> 11, the CPU 51 or the like acquires the map scale currently set in the navigation device 1. When the CPU 51 or the like displays the map image 61 on the liquid crystal display 15, it displays the map image 61 at the currently set scale of the map (S2). Further, the map scale can be changed by operating the detail button 64 or the wide area button 68 (see FIG. 4), and the currently set map scale is stored in the RAM 52 or the like.

  Next, in S12, the CPU 51 and the like refer to the processing load regulation table 32 (FIG. 2), and the navigation device 1 determines the processing load value of the processor (CPU 51, GPU, etc.) according to the scale of the map acquired in S11. Acquired for each function to be implemented. That is, in S12, the CPU 51 or the like acquires the processing burden value of the processor when each function is performed in a state where the map image 61 is displayed on the liquid crystal display 15 with the scale set by the navigation device 1.

  Subsequently, in S13, the CPU 51 calculates, based on the processing load value acquired in S12, the degree of improvement in scroll speed when the function is stopped for each function currently implemented in the navigation device 1.

  After that, in S14, the CPU 51 has a high degree of improvement in scroll speed when the function is stopped among the functions currently implemented in the navigation device 1 based on the degree of improvement of each function calculated in S13. A predetermined number (for example, three) of function names are displayed in a list on the liquid crystal display 15 in order. Also, the scroll speed improvement is displayed along with the function name.

Here, FIG. 8 is a diagram showing the travel guidance screen 60 on which the function name and the improvement level are displayed in S14 in a state where the scale of the map is set to 1/10000. As shown in FIG. 8, a window 110 is newly displayed on the travel guidance screen 60. The window 110 displays a predetermined number (three in FIG. 8) of function names and scroll speed improvement (in particular, the scroll speed improvement rate in the example shown in FIG. 8) in descending order of improvement. As a result, the user refers to the display content of the window 110, and among the functions currently implemented in the navigation device 1, the function causing the scroll speed to decrease and the scrolling when the function is stopped. It becomes possible to grasp how much the speed is improved. When the scale of the map is 1/10000, when the “POI display function”, “VICS display function”, and “statistical data display function” are implemented in the navigation device 1, the processing of each function is performed. As shown in FIG. 2, the burden increases in the order of “VICS display function”, “POI display function”, and “statistical data display function”. Accordingly, the function names are displayed on the window 110 in the order of “statistical data display function”, “POI display function”, and “VICS display function”.
In addition, the function stop button 111 is displayed in the window 110 adjacent to each displayed function name. Then, the user can selectively stop the function whose function name is displayed on the window 110 as will be described later by operating the function stop button 111.

  On the other hand, FIG. 9 is a diagram showing the travel guidance screen 60 on which the function name and the improvement level are displayed in S14 with the map scale set to 1 / 80,000. As shown in FIG. 2, when the map scale is set to 1 / 80,000, the map data display area is larger than when the map scale is set to 1/10000, and the VICS congestion mark 71 and The drawing amount of the statistical traffic jam mark 72 also increases. On the other hand, since the POI 70 is not displayed except for some main POIs 70, the drawing amount of the POI 70 decreases. When the scale of the map is 1 / 80,000 and the “POI display function”, “VICS display function”, and “statistical data display function” are implemented in the navigation device 1, the processing of each function is performed. As shown in FIG. 2, the burden increases in the order of “POI display function”, “VICS display function”, and “statistical data display function”. Therefore, the function names are displayed in the window 110 in the order of “statistical data display function”, “VICS display function”, and “POI display function”.

  Thereafter, in S15, the CPU 51 and the like determine whether or not an operation for stopping the function whose function name is displayed in S14 has been received based on the detection signal transmitted from the touch panel 14. Specifically, the determination is made based on whether or not the function stop button 111 (FIG. 8) newly displayed adjacent to the function name on the liquid crystal display 15 is pressed.

  When it is determined in S14 that an operation for stopping the function whose function name is displayed is received (S15: YES), that is, when it is determined that the function stop button 111 displayed on the liquid crystal display 15 is pressed. To S16. On the other hand, when it is determined that the operation for stopping the function whose function name is displayed in S14 is not accepted (S15: NO), the scroll display processing program is terminated.

  In S16, the CPU 51 or the like stops the function corresponding to the pressed function stop button 111. As a result, the processing load on the processor is reduced, and the scroll speed of the map image 61 is increased. Note that the period during which the selected function is stopped may be a predetermined period (for example, 10 seconds), or may be a period until the user resumes selecting the function. Moreover, it is good also as stopping until ACC is turned off.

  Here, FIG. 10 is a diagram showing the travel guide screen 60 after the stop of the function is selected in S16 on the travel guide screen 60 in FIG. Note that the example shown in FIG. 10 shows a case where it is selected to stop the “statistical data display function” that displays a traffic jam prediction based on past statistical data. Then, as shown in FIG. 10, when the “statistical data display function” is stopped based on the user's selection, the statistical traffic jam mark 72 indicating the predicted traffic jam level based on the statistical data is deleted. As a result, the burden on the processor regarding the calculation processing of the traffic jam degree and the drawing processing of the statistical traffic jam mark 72 is reduced, and the scroll speed of the map image 61 is increased.

As described in detail above, in the navigation device 1 according to the present embodiment, the display processing method by the navigation device 1, and the computer program executed by the navigation device 1, the map image 61 around the vehicle is displayed on the liquid crystal display 15. When an operation for scroll-displaying the map image 61 is received together with (S2), the map image 61 is scroll-displayed (S4), while the theoretical value and actual measurement value of the scroll speed are acquired (S5, S6), respectively. The ratio of the actually measured value to the theoretical value of the scroll speed is calculated (S7), and when the calculated ratio is less than the second ratio, the scroll speed is compared with the theoretical value among the functions implemented in the navigation device 1. Since the function name of the function that causes the deterioration is guided (S14), the map image 61 is scanned. When performing roll display, the scroll speed is a function name of the function that is causing a decrease of theory, it is possible for the user to guide in the context of desire to improve the scrolling speed. As a result, the scroll speed can be improved by an appropriate method.
In addition, in a situation where the actual scroll speed value during the scroll display of the map image 61 is significantly lower than the theoretical value, the function name of the function that causes the scroll speed to decrease is guided, so that the user can scroll the scroll speed. It is possible to appropriately grasp the situation where improvement is desired. In addition, since the function name guidance is not performed in a situation where the user does not require guidance, there is no possibility that the unnecessary guidance may prevent the map image 61 from being visually recognized.
Moreover, since the scroll direction and speed in the scroll display of the map image 61 are selected based on the operation content of the operation using the touch panel 14, the map image 61 having a high degree of freedom reflecting the user's intention is displayed. Is possible. Further, it is possible to appropriately specify the theoretical value of the scroll speed corresponding to the user operation based on the received operation of the touch panel 14.
In addition, when the function name is guided, the degree of scroll speed improvement when the function implemented in the navigation device 1 is stopped is also guided for each function, so the function is stopped for each guided function. In this case, the user can grasp how much the scroll speed is improved.
In addition, since the degree of improvement when the function is stopped is calculated in consideration of the scale of the map displayed on the navigation device 1, it is possible to calculate a more accurate value of the degree of improvement.
In addition, among the functions implemented in the navigation apparatus 1, a predetermined number of function names are displayed in a list in descending order of improvement in scroll speed when the function is stopped. Even when there are a large number of functions, it is possible to easily guide the user about the function names that are effective information for improving the scrolling speed. Further, since the amount of information to be guided can be limited, there is no possibility that the viewing of the image is hindered by unnecessary guidance.
Further, since the function corresponding to the function name selected by the user among the guided function names is stopped (S16), the processing load of the navigation device 1 is reduced based on the stop of the function, and the map image 61 is displayed. The scroll speed can be improved.
Even if the ratio of the actual measurement value to the theoretical value of the scroll speed is equal to or greater than the second ratio, the function name is guided when it is determined that the operation for improving the scroll speed of the map image 61 is accepted. The situation in which the user desires to improve the scroll speed can be specified more accurately based on the operation received from the user. Therefore, in a situation where the user desires to improve the scroll speed, it is possible to more reliably guide the function name of the function that causes the scroll speed to be lower than the theoretical value.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in this embodiment, the processing load value of the processor for each function is specified in the processing load specification table 32 (FIG. 2), and the scroll speed is determined using the processing load value of the processor for each function specified in the processing load specification table 32. However, it is also possible to calculate the improvement in scroll speed based on the burden value of hardware resources other than the processor. For example, the amount of work memory used for each function may be used. Further, the processing load value of the processor for each function may be calculated by the CPU from the current usage status instead of being stored in advance as a table.

  In the present embodiment, when scroll display is performed, the function that causes the scroll speed to be lower than the theoretical value is guided. However, the present embodiment is applied when processing other than scroll display is performed. Also good. For example, in a situation where processing other than scroll display is being performed, a configuration that guides a function that causes a decrease in the parameter of the processing may be employed.

  Further, in the present embodiment, the POI display function, the VICS display function, and the statistical data display function have been described as examples of functions performed by the navigation apparatus 1, but the function names of functions other than the above functions are guided or selected. It is also possible to stop automatically. For example, there are communication processing, audio reproduction processing, travel guidance processing along the guidance route, and the like.

  In the present embodiment, the first ratio is 70% and the second ratio is 40%, but other values may be used as long as the first ratio> the second ratio. Moreover, you may abbreviate | omit about the determination process of S9 and S10.

  Further, in the present embodiment, when the ratio of the scroll speed actual measurement value to the scroll speed theoretical value is less than a predetermined value, the function name implemented in the navigation device 1 is guided. When the difference between the theoretical speed value and the actual scroll speed value is greater than or equal to a predetermined value, the function name implemented in the navigation device 1 may be guided.

  In this embodiment, when the improvement degree of the scroll speed is guided, the improvement rate (%) is guided by a specific numerical value, but other guidance modes may be used. For example, the improvement degree may be guided in three stages of “large, medium, and small”.

  Moreover, it is good also as a structure until it guides the function which causes the scroll speed to fall with respect to a theoretical value, without performing the process of S15 and S16.

  In addition to the navigation device, the present invention can be applied to a device having a function of scrolling and displaying images. For example, the present invention can be applied to a portable terminal such as a cellular phone, a personal computer, a portable music player, and the like. In addition, as a means for accepting a user operation, a means other than the touch panel may be used. For example, a keyboard or a mouse may be used.

1 Navigation device 13 Navigation ECU
14 touch panel 15 liquid crystal display 32 processing load regulation table 51 CPU
52 RAM
53 ROM
60 Driving guidance screen 61 Map image 70 POI
71 VICS traffic congestion mark 72 Statistical traffic congestion mark

Claims (10)

In a display processing apparatus that processes a plurality of types of functions by executing various programs,
A display device for displaying an image;
Operation accepting means for accepting a user operation;
Scroll display means for scroll-displaying the image displayed on the display device on the display device based on the user's operation received by the operation receiving means;
Scroll speed theoretical value acquisition means for acquiring a scroll speed theoretical value corresponding to the user operation of the scroll speed of the image by the scroll display means;
Scroll speed actual value acquisition means for acquiring an actual value of scroll speed of the image by the scroll display means as a scroll speed actual value;
Speed comparison means for comparing the scroll speed theoretical value and the scroll speed actual measurement value;
A display processing device, comprising: a guide unit that guides a function name implemented in the display processing device based on a comparison result by the speed comparison unit. The speed comparison means calculates a ratio of the scroll speed actual measurement value to the scroll speed theoretical value,
The display processing apparatus according to claim 1, wherein the guide unit guides the function name when the ratio calculated by the ratio calculation unit is less than a predetermined value. A touch panel disposed in front of the display area of the display device;
The display area of the display device includes a plurality of areas, and the scroll speed theoretical value is associated with each area,
The operation accepting means accepts a user operation on the touch panel,
The said scroll speed theoretical value acquisition means acquires the said scroll speed theoretical value matched with the said area | region containing the coordinate which the user touched with respect to the said touch panel, The Claim 1 or Claim 2 characterized by the above-mentioned. Display processing device. For each of the functions implemented in the display processing device, a processing burden value acquisition means for acquiring a processing burden value of the display processing device when the function is implemented,
The guidance means, based on the processing load value for each function acquired by the processing load value acquisition means, the degree of improvement in the scroll speed when the function implemented in the display processing device is stopped, The display processing device according to claim 1, wherein guidance is provided for each of the functions implemented in the display processing device. Map image display means for displaying a map image at a predetermined scale as the image on the display device;
Scale obtaining means for obtaining a scale of the map image displayed on the display device,
The processing burden value acquisition means, when the function is executed in a state where the map image is displayed on the display device by the scale acquired by the scale acquisition means for each function executed by the display processing device. The display processing device according to claim 4, wherein a processing burden value of the display processing device is acquired.   The guide means lists a predetermined number of the function names in the descending order of improvement in the scroll speed when the function is stopped among the functions implemented in the display processing device. The display processing apparatus according to claim 1, wherein the display processing apparatus displays. Function selecting means for selecting the function name guided by the guiding means;
The display processing according to claim 1, further comprising: a function stop unit that stops a function corresponding to the function name selected by the function selection unit in the display processing device. apparatus. An operation determination means for determining whether or not an operation for improving the scroll speed of the image by the scroll display means is received in the operation reception means;
The said guidance means guides the said function name, when it determines with the operation for improving the scroll speed of the said image having been received by the said operation determination means. The display processing device according to 1. A display processing method for a display processing apparatus that performs various types of functions by executing various programs,
An operation reception step for receiving a user operation;
A scroll display step for scrolling and displaying the image displayed on the display device for displaying an image on the display device based on the operation of the user received by the operation reception step;
A scroll speed theoretical value acquisition step of acquiring a scroll speed theoretical value corresponding to the user operation of the scroll speed of the image by the scroll display step;
A scroll speed actual value acquisition step of acquiring an actual scroll speed value of the image by the scroll display step as a scroll speed actual value;
A speed comparison step for comparing the scroll speed theoretical value and the scroll speed actual measurement value;
A display step for guiding a function name implemented in the display processing device based on a comparison result of the speed comparison step. It is installed in a display processing device that can execute multiple types of functions by executing various programs on the processor.
An operation acceptance function for accepting user operations;
A scroll display function for scrolling and displaying the image displayed on the display device for displaying the image on the display device based on the user operation received in the operation receiving step;
A scroll speed theoretical value acquisition function for acquiring a scroll speed theoretical value corresponding to the user's operation of the scroll speed of the image by the scroll display function;
A scroll speed actual value acquisition function for acquiring an actual scroll speed value of the image by the scroll display function as a scroll speed actual value;
A speed comparison function for comparing the scroll speed theoretical value and the scroll speed actual value;
Based on the comparison result by the speed comparison function, a guidance function for guiding a function name implemented in the display processing device;
A computer program for causing a processor to execute.

Images