JP2010127784A - Display device, display method, display program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To change a display form of an icon according to the state of a vehicle or a user. <P>SOLUTION: When determined that the vehicle is traveling by a traveling determination part 103, at least one or more information between each information of the state of a road along which the vehicle is traveling, a weather or a date and time is acquired by an acquisition part 104. When determined that the display form of the icon is to be changed by a display form determination part 105 based on the information acquired by the acquisition part 104, the display form of the icon is changed and displayed by controlling a display part 101 by a display control part 108. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device, a display method, a display program, and a recording medium that change a display form of an icon that receives an input for executing various menus from a user.

  Conventionally, a touch area for receiving input of various menus is displayed on a display screen in which touch panels are stacked, and navigation for receiving input of displayed menus by pressing a touch panel in an area corresponding to the touch area. There is a device. In such a navigation device, in order to prevent erroneous operation of the touch panel, the vehicle traveling / non-running is detected by the signal of the vehicle speed sensor, and when the vehicle traveling is detected, it is displayed on the stacked display screen of the touch panel. There has been proposed a navigation device in which the touch area of a button is made larger than the touch area during non-travel (see, for example, Patent Document 1 below).

  In addition, among the plurality of buttons displayed in parallel on the display monitor, the time zone in which the touch area of the touch panel of the button with the highest pressing frequency is pressed after being displayed is larger than the initial display size. A navigation device has been proposed that expands and expands the touch area until it overlaps the display range of adjacent buttons (see, for example, Patent Document 2 below). Further, a navigation device has been proposed that detects the vibration of the host vehicle, displays the scale change button relatively small when the vibration is small, and displays the scale change button relatively large when the vibration is large (for example, the following patents). Reference 3).

JP 2006-17478 A JP 2007-102442 A JP 2007-190947 A

  However, in the technique of Patent Document 1 or 3 described above, the display of the touch area is increased according to the speed and amount of vibration of the vehicle. For example, when the vehicle passes through a narrow route, the speed of the vehicle is slow, Even if the amount is small, there are situations where it is difficult for the driver to drive and situations where it is difficult to operate the touch panel. In this case, if the display of the touch area is small, there is a problem that the driver pays attention to the display screen and driving becomes dangerous.

  Further, in the technique of Patent Document 2 described above, the display of the touch area is increased from the time when the touch area is displayed on the display screen until the time when the touch area is frequently pressed. For example, the touch area is displayed on the display screen. The display of the touch area is small and it is dangerous for the user to concentrate on driving, even in situations where it is difficult for the driver to see the display screen in the evening or at night, except during times when it is frequently pressed There is.

  In order to solve the above-described problems and achieve the object, the display device according to the invention of claim 1 displays an icon for accepting an input to execute various menus from the user on a display unit provided in the vehicle. In the display device, information relating to the state of the route on which the vehicle is traveling, the weather, or the date and time when it is determined that the vehicle is traveling, and travel determination means for determining whether the vehicle is traveling Acquisition means for acquiring at least one of the information, display form determination means for determining whether or not to change the display form of the icon based on the information acquired by the acquisition means, and the icon Display control means for controlling the display unit to change and display the display form of the icon when it is determined that the display form is to be changed.

  According to a ninth aspect of the present invention, there is provided a display method for a display device for displaying an icon for accepting an input for executing various menus from a user on a display unit provided in the vehicle. At least one of a travel determination step for determining whether or not the vehicle is in progress, and information regarding the state of the route on which the vehicle is traveling, weather, or date and time when it is determined that the vehicle is traveling An acquisition step of acquiring information, a display mode determination step of determining whether or not to change the display mode of the icon based on the information acquired by the acquisition step, and a determination of changing the display mode of the icon A display control step of controlling the display unit to change and display the display form of the icon.

  A display program according to a tenth aspect of the invention causes a computer to execute the display method according to the ninth aspect.

  A recording medium according to an eleventh aspect of the present invention is characterized in that the display program according to the tenth aspect is recorded in a computer-readable state.

  Exemplary embodiments of a display device, a display method, a display program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of display device)
First, a functional configuration of the display device 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating a functional configuration of the display device according to the embodiment.

  In FIG. 1, the display device 100 includes a display unit 101, a recording unit 102, a travel determination unit 103, an acquisition unit 104, a display form determination unit 105, a passenger determination unit 106, a situation determination unit 107, A display control unit 108. The display unit 101 includes an icon that accepts an input to execute various menus from the user, and a display screen that displays map data. A touch panel or the like may be stacked on the display screen. An input to execute various menus from the user indicates that, for example, when the touch panel is pressed by the user, the menu indicated by the icon displayed on the display screen of the pressed area is executed. Accept. An input to execute various menus from the user may be accepted by selecting an icon by operating the mouse or the like. Here, the icons indicate the contents of various menus with characters and graphics.

  The map data is recorded in the recording unit 102, for example. The map data includes road network data composed of nodes and links, and image data drawn using features relating to facilities, roads, and other terrain (mountains, rivers, land). The map data may include text information, information such as facility names and addresses, road and facility images, and the like.

  The recording unit 102 records a reception history of a menu that has been input by an operation from a user. Specifically, the recording unit 102 may record the frequency received by an operation from the user for each menu. In addition, the recording unit 102 accepts a menu that is input by an operation from the user in association with information on a route on which the vehicle is traveling, weather, or date / time acquired by the obtaining unit 104 described later. A history may be recorded.

  The traveling determination unit 103 determines whether or not the vehicle is traveling. Specifically, traveling determination unit 103 determines whether or not the vehicle is traveling based on an input from, for example, a vehicle speed pulse.

  When the travel determination unit 103 determines that the vehicle is traveling, the acquisition unit 104 acquires at least one piece of information regarding the state of the route on which the vehicle is traveling, the weather, or the date and time. . Examples of the information on the state of the route on which the vehicle is traveling include information on the width, curvature, and area of the route. The acquisition unit 104 acquires at least one piece of information about the width of the route, the curvature, and the information about the area as information about the state of the route on which the vehicle is traveling. Specifically, the acquisition unit 104 acquires, for example, information regarding the state of the route on which the vehicle is traveling from the map data.

  Moreover, the acquisition part 104 acquires the information regarding whether it is difficult for the driving | operation of vehicles, such as rainy weather, a strong wind, or snow, as the information regarding the weather in which a vehicle is drive | working. Moreover, you may acquire the information regarding the temperature outside a vehicle as information regarding the weather in which a vehicle is drive | working. This is because, for example, when the outside air temperature is below freezing, the road may be frozen. Specifically, the acquiring unit 104 acquires, for example, information related to the weather during which the vehicle is traveling from a server via a network using a connected mobile phone or the like.

  The acquisition unit 104 acquires at least one or more pieces of information regarding time or season during which the vehicle is traveling as information regarding the date and time when the vehicle is traveling. The information regarding the time or season during which the vehicle is traveling is, for example, information about whether the time is evening or night and whether the season is autumn or winter. The reason for obtaining information about the season is that autumn or winter evenings are highly likely to cause accidents. Specifically, the acquisition unit 104 acquires, for example, information related to the date and time when the vehicle is traveling from time information from GPS, calendar information recorded in the recording unit 102, and the like.

  The display form determination unit 105 determines whether or not to change the icon display form based on the information acquired by the acquisition unit 104. Specifically, the display form determination unit 105, for example, is a situation where it is difficult for a user to operate an input to execute various menus, a situation where it is difficult to visually recognize a display screen, and a vehicle may be driven. It is determined that the icon display form is changed in a difficult situation.

  The passenger determination unit 106 determines whether there is a passenger in the passenger seat of the vehicle. Specifically, the passenger determination unit 106 can input, for example, an input from a sensor for detecting the weight provided on the seat surface of the passenger seat or an image around the passenger seat taken by a camera capable of photographing the inside of the vehicle. Based on this, it is determined whether there is a passenger in the passenger seat.

  Based on the information acquired by the acquisition unit 104, the situation determination unit 107 determines whether or not it is a dangerous situation when the driver of the vehicle visually recognizes the display unit 101. Specifically, the situation determination unit 107 uses the information acquired by the acquisition unit 104 as a parameter, for example, when the risk of the driver of the vehicle viewing the display unit 101 is greater than or equal to a predetermined value. If the display unit 101 is visually recognized, it may be determined that the situation is dangerous. Specifically, the situation determination unit 107 determines that it is a dangerous situation when the driver of the vehicle visually recognizes the display unit 101 when, for example, the vehicle runs on a mountain road with many curves and a narrow width at night. .

  When it is determined that the icon display form is to be changed, the display control unit 108 controls the display unit 101 to change and display the icon display form. The display control unit 108 acquires, for example, at least one piece of information about the width, curvature, and area of the route as information about the state of the route on which the vehicle is traveling by the acquisition unit 104, and the display form determination unit 105. If it is determined that the display form is to be changed, the display unit 101 is controlled to display the icon with a larger size. Specifically, when the acquisition unit 104 acquires information such as a route with a narrow width, a route with many curves, a mountain road, a residential area, a shopping street, etc., the display control unit 108 controls the display unit 101 to display the icon Display a larger size.

  In addition, the display control unit 108 acquires information on the weather during which the vehicle is traveling by the acquisition unit 104, and controls the display unit 101 when the display mode determination unit 105 determines to change the display mode, Display a larger size. Specifically, the display control unit 108 controls the display unit 101 when the acquisition unit 104 acquires information indicating that the weather is rainy, strong wind or snow, information indicating that the temperature is below freezing point, and the like. Increase the display size.

  Further, the display control unit 108 acquires at least one piece of information about time or season during which the vehicle is traveling as information related to the date and time when the vehicle is traveling by the acquiring unit 104, and the display form determining unit 105 When it is determined that the display form is to be changed, the display unit 101 is controlled to change and display the icon in a color that is highly visible to the user. Specifically, the display control unit 108 controls the display unit 101 when the acquisition unit 104 acquires information such as evening or nighttime, particularly autumn or winter evening, so that the icon is visible to the user. Change to a higher color and display.

  When the display form determination unit 105 determines that the display form is to be changed, the display control unit 108 selects a menu that is highly likely to accept an input from the user based on the menu reception history recorded in the recording unit 102. Only the icon shown may be displayed. When the display form determination unit 105 determines that the display form is to be changed, the display control unit 108 controls the display unit 101 to change the icon display range to the side closer to the driver's seat of the display part 101. It may be displayed.

  Further, when the passenger determination unit 106 determines that there is a passenger in the passenger seat and the display form determination unit 105 determines that the display form is to be changed, the display control unit 108 controls the display unit 101 to display the icon. May be changed to the side closer to the passenger seat of the display unit 101 for display. Further, the display control unit 108 controls the display unit 101 so that the icon is not displayed when the situation determination unit 107 determines that the situation is dangerous when the driver of the vehicle visually recognizes the display unit 101. Also good.

  The display control unit 108 may change the display form of the icons by combining these display forms. Specifically, for example, the icon may be displayed by changing the display range to the side closer to the driver's seat of the display unit 101 with a color that is large and highly visible to the user.

(Display processing procedure of display device)
Next, a display processing procedure of the display device 100 will be described. FIG. 2 is a flowchart showing a display processing procedure of the display device. In the flowchart of FIG. 2, first, the process waits until the travel determination unit 103 determines that the vehicle is traveling (step S201: No loop). If it is determined in step S201 that the vehicle is traveling (step S201: Yes), the acquisition unit 104 obtains at least one piece of information regarding the state of the route on which the vehicle is traveling, weather, or date and time information. Obtain (step S202).

  Next, based on the information acquired by the acquisition unit 104, the display mode determination unit 105 determines whether to change the icon display mode (step S203). If it is not determined in step S203 that the icon display form is to be changed (step S203: No), the process returns to step S202, and the subsequent processing is repeated.

  On the other hand, if it is determined in step S203 that the icon display form is to be changed (step S203: Yes), a menu reception history is acquired from the recording unit 102 (step S204). Further, it is determined whether or not there is a passenger in the passenger seat (step S205). When it is determined in step S205 that there is a passenger in the passenger seat (step S205: Yes), the display control unit 108 controls the display unit 101 to change the icon display range to the side closer to the passenger seat ( Step S206), the process proceeds to Step S210.

  If it is determined in step S205 that there is no passenger in the passenger seat (step S205: No), the situation determination unit 107 determines whether or not it is a dangerous situation when the driver of the vehicle visually recognizes the display unit 101 ( Step S207). When it is determined in step S207 that the driver of the vehicle visually recognizes the display unit 101 (step S207: Yes), the icon is not displayed (step S208) or the icon display is stopped. A series of processing ends.

  On the other hand, when it is determined in step S207 that the driver of the vehicle visually recognizes the display unit 101, it is not dangerous (step S207: No), and the display control unit 108 controls the display unit 101 to display the icon display range. Is changed to the side closer to the driver's seat (step S209), and the process proceeds to step S210.

  In step S210, the display control unit 108 causes the display unit 101 to change the display unit 101 based on at least one piece of information regarding the state of the route on which the vehicle is traveling, weather, or date / time acquired in step S202. Control is performed to change and display the size and color of the icon (step S210), and the series of processing ends.

  In the flowchart of FIG. 2, when there is a passenger in the passenger seat at Step S205: Yes, the icon display range is changed to the side closer to the passenger seat at Step S206, but this is not restrictive. Specifically, even if there is a passenger in the passenger seat, if the display range is set in advance or if this passenger does not operate the icon, the icon display range is changed to the side closer to the driver's seat. May be.

  In the flowchart of FIG. 2, the icon size and color are changed and displayed in step S210, but the present invention is not limited to this. Specifically, for example, based on the menu reception history acquired in step S204, only icons indicating menus that are likely to receive input from the user may be displayed.

  As described above, according to the display device 100 according to the present embodiment, when the travel determination unit 103 determines that the vehicle is traveling, the acquisition unit 104 determines the route state, weather, and the like. Or at least one piece of information about date and time is acquired. If the display form determination unit 105 determines to change the icon display form based on the acquired information, the display control unit 108 controls the display unit 101 to change and display the icon display form. can do. Therefore, regardless of the speed and vibration of the vehicle, the icon display form can be changed based on information on the state of the route the vehicle is traveling on, the weather, or the date and time. As a result, even when the vehicle is slowing down, the user is in a situation where it is difficult to drive, a situation where it is difficult to perform menu input operations, or a situation where the display screen is difficult to see, Since the icons are easy to operate, the vehicle can be operated safely.

  Moreover, according to the display device 100 according to the present embodiment, at least one piece of information about the width of the route, the curvature, and the region is used as the information about the state of the route on which the vehicle is traveling by the acquisition unit 104. When it is determined that the display form is to be changed by the display form determination unit 105, the display control unit 108 can control the display unit 101 to display the icon with a larger size. Therefore, for example, the icon can be displayed in a larger size while traveling on a narrow route, a mountain road, a residential area, or a shopping street. As a result, the user can operate the vehicle safely because the icons are easy to operate even in situations where it is difficult to drive such as narrow routes, mountain roads, residential streets or shopping streets. Can be done.

  Further, according to the display device 100 according to the present embodiment, when the acquisition unit 104 acquires information related to the weather during which the vehicle is traveling and the display mode determination unit 105 determines to change the display mode, the display control unit The display unit 101 can be controlled by 108 to increase the size of the icon for display. Therefore, for example, in the case of rainy weather, strong wind, snow, etc., the icon can be displayed with a larger size. As a result, the user can drive the vehicle safely because the icons are easy to operate even in situations where it is difficult to drive such as rainy weather, strong wind or snow.

  Moreover, according to the display device 100 according to the present embodiment, the acquisition unit 104 acquires at least one piece of information about time or season during which the vehicle is traveling as information regarding the date and time when the vehicle is traveling. When the display form determining unit 105 determines that the display form is to be changed, the display control unit 108 can control the display unit 101 to change and display the icon in a color that is highly visible to the user. Therefore, for example, in the evening or at night, the icon can be displayed in a color that is highly visible to the user. As a result, the user can drive the vehicle safely because the icons are easy to see even when the display screen is difficult to see, such as in the evening or at night.

  Further, according to the display device 100 according to the present embodiment, the recording history of the menu accepted by the user through the operation of the recording unit 102 is recorded, and the display mode determination unit 105 determines to change the display mode. In this case, the display control unit 108 can display only an icon indicating a menu that is highly likely to accept an input from the user based on the menu reception history. Therefore, for example, when an icon is enlarged and displayed, only an icon indicating a menu that is highly likely to accept an input from the user can be displayed. Accordingly, the user can easily operate the icon without complicating the display content of the display screen.

  Further, according to the display device 100 according to the present embodiment, when the display form determination unit 105 determines that the display form is to be changed, the display control unit 108 controls the display unit 101 to change the icon display range. The display unit 101 can be changed to the side closer to the driver's seat and displayed. Therefore, it is possible to make it easier for the user sitting in the driver's seat to operate the icon. Thereby, when the user is a driver, the user can easily operate the icon.

  Further, according to display device 100 according to the present embodiment, when passenger determination unit 106 determines that there is a passenger in the passenger seat of the vehicle, and display form determination unit 105 determines that the display form is to be changed. Then, the display control unit 108 can control the display unit 101 to change the display range of the icon to the side closer to the passenger seat of the display unit 101 for display. Therefore, when there is a passenger in the passenger seat other than the user sitting in the driver's seat, the icon display form can be changed so that the passenger can easily operate the icon. As a result, the passenger in the passenger seat can easily operate the icon. In addition, since the user who is a driver does not need to operate the icon, the user can concentrate on driving.

  Further, according to the display device 100 according to the present embodiment, based on the information acquired by the acquisition unit 104, the situation determination unit 107 determines that the situation is dangerous when the driver of the vehicle visually recognizes the display unit 101. In such a case, the display control unit 108 can control the display unit 101 so that the icon is not displayed. Therefore, for example, when driving on a mountain road when the outside air temperature is below freezing, it is possible to prevent the icon from being displayed when driving is dangerous by viewing the display unit 101. As a result, in a situation where attention is required for driving, the user cannot operate the icon until the vehicle is stopped, so that the user can drive safely.

  Examples of the present invention will be described below. In this embodiment, an example in which the display device of the present invention is implemented by a navigation device mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

(Hardware configuration of navigation device)
Next, a hardware configuration of the navigation device 300 according to the present embodiment will be described. FIG. 3 is a block diagram of a hardware configuration of the navigation device according to the present embodiment. In FIG. 3, the navigation device 300 includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / F (interface) 308, and a microphone 309. A speaker 310, an input device 311, a video I / F 312, a display 313, a communication I / F 314, a GPS unit 315, various sensors 316, and a camera 317. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records programs such as a boot program, a data update program, an icon display change determination program, and an icon display change program. The RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

  As will be described in detail later, the icon display change determination program acquires at least one or more of information on the state of the route on which the vehicle is traveling, the weather, or the date and time when the vehicle is traveling. Based on the above, it is determined whether or not to change the display form of the icon displayed on the display 313. Here, the icon is information on characters and figures displayed on the display 313 in order to accept an input to execute various menus from the user. Specifically, the icon display change determination program, for example, a situation where it is difficult for a user to operate an input to execute various menus, a situation where it is difficult to visually recognize the display 313, and a vehicle may be driven. It is determined that the icon display form is changed in a difficult situation.

  If the icon display change program determines that the icon display form is to be changed by the icon display change determination program, the icon display change program changes the icon display form to a form that matches the information that has been determined to be changed, and displays it on the display 313. Display. Specifically, the size of the icon is increased, or the icon color is changed to a color that is highly visible to the user. The icon display change program changes the brightness of the display 313 or changes the icon display range on the display 313 to, for example, a side close to the driver's seat or a side close to the passenger seat.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. As a removable recording medium, in addition to the optical disk 307, an MO, a memory card, or the like may be used.

  Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. The map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. ing.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, whether or not there is a signal or a pedestrian crossing, whether or not there is a highway doorway or junction, the length (distance) of each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).

  The function data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data. Map data and function data are recorded in blocks divided by district or function. Specifically, for example, the map data is recorded in a state where each block can be divided into blocks such that each represents a predetermined district on the map displayed on the display screen. Further, for example, the function data is recorded in a state where each function can be divided into a plurality of blocks so as to realize one function.

  The function data is data for realizing functions such as program data for realizing route search, calculation of required time, route guidance, etc. in addition to the above-described three-dimensional data and character data. Each of the map data and the function data is composed of a plurality of data files divided for each district or each function.

  Other examples of information recorded on the magnetic disk 305 and the optical disk 307 include calendar data and menu reception history. The menu reception history is information regarding the frequency of reception from the user in the past for each of the various menus executed by the navigation device 300.

  The navigation device 300 may include a flash memory, although not shown. The flash memory is a rewritable nonvolatile semiconductor memory, and reads / writes data under the control of the CPU 301. As the flash memory, for example, a NAND flash memory or a NOR flash memory can be used. Examples of information recorded in the flash memory include the above-described video information, audio information, character information, map information, function data, and the like. Further, the flash memory may have a function as the ROM 302. That is, the flash memory may record the above-described programs.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. For example, the microphone 309 may be installed near the sun visor of the vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output. Note that the sound input from the microphone 309 can be recorded on the magnetic disk 305 or the optical disk 307 as sound data.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, and a touch panel. The input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but can also be realized by a plurality of forms.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. On the display 313, the map data described above is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 313 can be displayed with a mark representing the current position of the vehicle on which the navigation device 300 is mounted. The current position of the vehicle is calculated by the CPU 301.

  As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used. The display 313 is installed near the dashboard of the vehicle, for example. A plurality of displays 313 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301. Note that the communication I / F 314 may acquire weather-related information from a server or the like via the Internet.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Get road traffic information. VICS is a registered trademark. The communication I / F 314 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside, for example, when using DSRC (Dedicated Short Range Communication), and traffic information and map information Get various information. A specific example of DSRC is ETC (non-stop automatic fee payment system).

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle. The output information of the GPS unit 315 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 316 described later. The information indicating the current position is information for specifying one point on the map data, such as latitude / longitude and altitude. Further, the GPS unit 315 may acquire information regarding the current time from a GPS satellite.

  The various sensors 316 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the amount of change in speed and direction.

  The camera 317 captures images inside or outside the vehicle. The image may be either a still image or a moving image. For example, the behavior of the passenger inside the vehicle is photographed by the camera 317, and the photographed image is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. To do. Specifically, the passenger seat may be photographed by the camera 317, and an image used for determining whether there is a passenger in the passenger seat may be output. The camera 317 captures a situation outside the vehicle, and outputs the captured video to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Further, the camera 317 has an infrared camera function, and the surface temperature distributions of objects existing inside the vehicle can be relatively compared based on video information captured using the infrared camera function. The video output to the recording medium is overwritten and stored.

  The display unit 101, the recording unit 102, the travel determination unit 103, the acquisition unit 104, the display form determination unit 105, the passenger determination unit 106, the situation determination unit 107, and the display control unit 108 included in the display device 100 illustrated in FIG. The CPU 301 executes a predetermined program using the programs and data recorded in the ROM 302, RAM 303, magnetic disk 305, optical disk 307, etc. in the navigation apparatus 300 shown in FIG. 3, and controls each part in the navigation apparatus 300. Realize its function.

  That is, the navigation device 300 according to the embodiment has the functions provided in the display device 100 shown in FIG. 1 by executing the display program recorded in the ROM 302 as a recording medium in the navigation device 300 as shown in FIG. It can be executed in the display processing procedure.

(Contents of navigation device processing)
Next, the processing contents of the navigation device 300 will be described. FIG. 4 is a flowchart showing the contents of processing of the navigation device. In the flowchart of FIG. 4, first, the process waits until it is determined that the vehicle is traveling based on information from vehicle speed sensors included in the various sensors 316 (step S401: No loop).

  If it is determined in step S401 that the vehicle is traveling (step S401: Yes), at least one piece of information about the state of the route on which the vehicle is traveling, weather, or date / time information is acquired (step S402). ). In step S402, for example, information about the route is acquired from map data or function data recorded on the magnetic disk 305 and the optical disk 307, information about the weather is acquired from an external server or the like via the communication I / F 314, and the GPS unit Information about the time is acquired from the GPS satellite via 315. Further, the frequency of use of the menu input by the user in the past is acquired from the magnetic disk 305 and the optical disk 307 (step S403).

  Next, the icon display change determination program is executed, and the following processing from step S404 to step S415 is performed based on the information acquired in step S402. First, it is determined whether the route is a mountain road or the width of the route is narrow (step S404). If it is not determined in step S404 that the route is a mountain road or the route width is narrow (step S404: No), the process directly proceeds to step S406. If it is determined in step S404 that the route is a mountain road or the width of the route is narrow (step S404: Yes), the size of the icon is set large (step S405), and the process proceeds to step S406.

  Next, in step S406, it is determined whether the weather is rainy, strong wind or snow (step S406). If it is not determined in step S406 that the weather is rainy, strong wind or snow (step S406: No), the process proceeds to step S408 as it is. If it is determined in step S406 that the weather is rainy, strong wind, or snow (step S406: Yes), the icon size is set large (step S407), and the process proceeds to step S408.

  Next, in step S408, it is determined whether the time is evening or night (step S408). If it is not determined in step S408 that the time is evening or night (step S408: No), the process proceeds to step S412. If it is determined in step S408 that the time is evening or night (step S408: Yes), the color of the icon is set to a highly visible color (step S409), and then whether the season is autumn or winter is determined. Judgment is made (step S410). If it is not determined in step S410 that the season is autumn or winter (step S410: No), the process directly proceeds to step S412. If it is determined in step S410 that the season is autumn or winter (step S410: Yes), the brightness of the display 313 is increased and the size of the icon is set larger (step S411), and the process proceeds to step S412.

  Next, in step S412, it is determined whether there is a passenger in the passenger seat based on information from the weight sensor included in the various sensors 316 and the camera 317 (step S412). If it is not determined in step S412 that there is a passenger in the passenger seat (step S412: No), the process proceeds to step S414 as it is. If it is determined in step S412 that there is a passenger in the passenger seat (step S412: Yes), it is determined whether or not the passenger operates the navigation device 300 (step S413).

  In step S413, the determination as to whether or not the passenger is operating may be set in advance by the user or passenger, for example, displaying a key for receiving an instruction as to whether or not to operate from the passenger seat side, etc. This may be done by determining whether or not this key has been operated. If it is not determined in step S413 that the passenger is operating (step S413: No), the process proceeds to step S414.

  Next, in step S414, it is determined whether the route is a mountain road and the outside air temperature is below freezing (step S414). If it is not determined in step S414 that the route is a mountain road and the outside air temperature is below freezing (step S414: No), the process proceeds to step S416. If it is determined in step S413 that the passenger is operating (step S413: Yes), the icon display range is set closer to the passenger seat (step S415), and the process proceeds to step S416.

  Next, in step S416, it is determined whether or not to change the icon display form (step S416). In step S416, for example, when the setting for changing the icon display form is made in at least one of step S405, step S407, step S409, step S411, and step S415, it is determined that the icon display form is to be changed. To do. In step S416, a key for accepting an instruction as to whether or not to change the icon display form may be displayed, and it may be determined by determining whether or not this key has been operated. That is, for example, if the user himself / herself feels that the visibility of the icon is poor, a configuration in which an instruction to change the icon display form may be input.

  If it is determined in step S416 that the icon display form is to be changed (step S416: Yes), the icon display change program is executed and the display 313 is selected from among step S405, step S407, step S409, step S411, and step S415. The icon display form is changed and displayed in the form set in at least one of the above (step S417), and the series of processing ends.

  On the other hand, if it is not determined in step S416 that the icon display form is to be changed (step S416: No), the icon display form is displayed on the display 313 without being changed (step S418), and the series of processing ends.

  If it is determined in step S414 that the route is a mountain road and the outside air temperature is below freezing (step S414: Yes), the display of the icon on the display 313 is stopped (step S419), and the series of processing ends.

  In the flowchart of FIG. 4, the icon display form is changed in step S417. However, for example, if the size of the icon is increased, all the icons cannot fit on the display 313 or the icons overlap. The display may be difficult to understand. In this case, only icons that are likely to be used by the user may be displayed based on the use frequency of the menu acquired in step S403.

  In the flowchart of FIG. 4, in step S417, the icon display form is set to the form set in at least one of step S405, step S407, step S409, step S411, and step S415 on the display 313. Although it is supposed to be changed and displayed, it is not limited to this. Specifically, for example, the icon display range may be displayed on the display 313 near the driver's seat.

(Example of display that displays the size of the icon larger)
Next, an icon display mode will be described. First, an example of a display that displays a large icon size will be described with reference to FIG. 5 or FIG. 6. FIG. 5 is an explanatory diagram illustrating an example of a display that displays a large icon size. In FIG. 5, the upper diagram is the normal menu screen 500, and the lower diagram is the menu screen 510 after the change.

  As shown in the upper diagram of FIG. 5, for example, a normal menu screen 500 in which normal icons 501 are arranged on the display 313 is displayed. Here, when the icon display change program is executed in step S417, as shown in the lower diagram of FIG. 5, the changed menu in which the big icons 511 larger in size than the normal icons 501 are arranged on the display 313 is displayed. A screen 510 is displayed.

  At this time, for example, if the user frequently uses the “address”, “history”, “neighboring facilities”, and “home” menus, these menus are displayed large and displayed on the normal menu screen. “Zip code”, “genre”, and “TEL” may not be displayed. In addition, “zip code”, “genre”, and “TEL” may be included in the “others” menu.

  FIG. 6 is an explanatory diagram illustrating another example of a display that displays a large icon size. In FIG. 6, the upper diagram is a normal map screen 600, and the lower diagram is a map screen 610 after change.

  As shown in the upper diagram of FIG. 6, for example, a normal map screen 600 on which a normal icon 601 is superimposed and displayed on the side close to the passenger seat of the display 313 is displayed. Here, when the icon display change program is executed in step S417, a big icon 611 larger in size than the normal icon 601 is displayed superimposed on the display 313 as shown in the lower diagram of FIG. The changed map screen 610 is displayed. Further, in the changed map screen 610, unlike the normal map screen 600, for example, a big icon 611 is displayed on the side closer to the driver's seat of the display 313.

(Example of a display that changes the icon color to a highly visible color)
Next, with reference to FIG. 7, an example of display that is displayed by changing the color of the icon to a highly visible color in step S409 of FIG. 4 will be described. FIG. 7 is an explanatory diagram illustrating an example of a display in which an icon is changed to a color with high visibility. In FIG. 7, the upper diagram is the normal menu screen 500, and the lower diagram is the menu screen 700 after the change.

  As shown in the upper diagram of FIG. 7, for example, a normal menu screen 500 in which normal icons 501 are arranged on the display 313 is displayed. Here, when the icon display change program is executed in step S417, as shown in the lower diagram of FIG. 7, icons 701 having colors that are more visible to the user than the normal icons 501 are arranged on the display 313. The changed menu screen 700 is displayed. At this time, for example, the size of the icon 701 may be larger than that of the normal icon 501.

(An example of the display that changes the icon display range to the side closer to the passenger seat)
Next, with reference to FIG. 8 or FIG. 9, an example of the display that is displayed by changing the icon display range to the side closer to the passenger seat in step S415 will be described. FIG. 8 is an explanatory diagram showing an example of a display displayed by changing the icon display range to the side closer to the passenger seat. In FIG. 8, the upper diagram is the normal map screen 600, and the lower diagram is the map screen 800 after the change.

  As shown in the upper diagram of FIG. 8, for example, a normal map screen 600 in which a normal icon 601 is superimposed and displayed on the side close to the passenger seat of the display 313 is displayed. Here, when the icon display change program is executed in step S417, a big icon 801 larger than the normal icon 601 is superimposed on the display 313 as shown in the lower diagram of FIG. The changed map screen 800 is displayed.

  Further, in this case, in the changed map screen 800, the normal icon 601 is displayed on the side close to the passenger seat of the display 313 on the normal map screen 600, so the big icon 801 is directly used as the passenger seat of the display 313. Display on the near side.

  FIG. 9 is an explanatory diagram illustrating another example of the display that is displayed by changing the icon display range to the side closer to the passenger seat. In FIG. 9, the upper diagram is the normal menu screen 500, and the lower diagram is the menu screen 900 after the change.

  As shown in the upper diagram of FIG. 9, for example, a normal menu screen 500 in which normal icons 501 are arranged on the display 313 is displayed. Here, when the icon display change program is executed in step S417, a big icon 901 larger in size than the normal icon 501 is displayed on the display 313 as shown in the lower diagram of FIG. A menu screen 900 after the change arranged on the side closer to the menu is displayed.

  In FIG. 9, the display range of the menu frequently used by the user is changed to the side closer to the passenger seat of the display 313, and the display of other menus is stopped. However, the present invention is not limited to this. For example, the display range of a menu frequently used by the user may be changed to the side closer to the passenger seat of the display 313 and another menu may be displayed on the side farther from the passenger seat of the display 313.

  5 to 9, an example of display in which the size of each icon is enlarged, an example of display in which the icon is changed to a color with high visibility, and the icon display range on the side closer to the passenger seat Although the example of the display changed and displayed is shown, it is not restricted to this. Specifically, for example, icons may be displayed by combining these display forms. Further, the icon display form is not limited to the above-described example, and any icon display form may be used as long as the user can operate the icon according to the user's situation.

  As described above, according to the navigation device 300 of the present embodiment, when the running route is a mountain road or a narrow route, when the running weather is rainy, strong wind, or snow, driving is difficult. In the case where the size of the icon is enlarged and displayed, the display color 313 may be changed to a highly visible color when the display 313 is difficult to visually recognize, such as in the evening or at night. it can. In addition, when the traveling season is an accident-prone situation such as autumn or winter evening, the brightness of the display 313 can be brightened and the size of the icon can be increased. Accordingly, the user can change the icon display to an optimal display in a situation where driving is difficult or a situation where the display 313 is difficult to see regardless of the speed and vibration during driving. Therefore, since the user can easily operate the icon, the user can concentrate on driving and can drive safely.

  As described above, according to the display device, the display method, the display program, and the recording medium of the present invention, regardless of the speed and vibration of the vehicle, in a situation where it is difficult to drive or a display screen is difficult to visually recognize, The icon display form can be changed to a display form that is easy for the user to operate.

  Note that the display method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer, a workstation, or a mobile terminal device (mobile phone). This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows the functional structure of the display apparatus concerning embodiment. It is a flowchart which shows the display processing procedure of a display apparatus. It is a block diagram which shows the hardware constitutions of the navigation apparatus concerning a present Example. It is a flowchart which shows the content of the process of a navigation apparatus. It is explanatory drawing shown about an example of the display which displays the magnitude | size of an icon largely. It is explanatory drawing shown about another example of the display which displays the magnitude | size of an icon largely. It is explanatory drawing shown about an example of the display which changes and displays an icon in the color with high visibility. It is explanatory drawing shown about an example of the display which changes and displays the display range of an icon to the side close | similar to a passenger seat. It is explanatory drawing shown about another example of the display which changes and displays the display range of an icon to the side close | similar to a passenger seat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Display apparatus 101 Display part 102 Recording part 103 Traveling judgment part 104 Acquisition part 105 Display form judgment part 106 Passenger judgment part 107 Situation judgment part 108 Display control part

Claims (11)

In a display device for displaying an icon for accepting an input for executing various menus from a user on a display unit provided in a vehicle,
Traveling determination means for determining whether or not the vehicle is traveling;
An acquisition means for acquiring at least one or more of information related to a state of a route on which the vehicle is traveling, weather, or date and time when it is determined that the vehicle is traveling;
Display form determination means for determining whether to change the display form of the icon based on the information acquired by the acquisition means;
If it is determined to change the display form of the icon, the display control means for controlling the display unit to change and display the display form of the icon;
A display device comprising: The acquisition means acquires at least one piece of information on the width, curvature, and area information of the route as information on the state of the route on which the vehicle is traveling,
2. The display device according to claim 1, wherein when it is determined that the display form is changed, the display control unit controls the display unit to display the icon with a larger size. The acquisition means acquires information on the weather during which the vehicle is traveling,
3. The display according to claim 1, wherein when it is determined that the display form is to be changed, the display control unit controls the display unit to display the icon with a larger size. 4. apparatus. The acquisition means acquires at least one piece of information about time or season during which the vehicle is running as information about the date and time when the vehicle is running,
The said display control means controls the said display part, when it is judged that the said display form is changed, changes and displays the said icon in the color with high visibility of the said user. The display device according to any one of 1 to 3. A recording unit for recording a reception history of a menu that has been input by an operation from the user;
When it is determined that the display mode is to be changed, the display control means displays only an icon indicating a menu having a high possibility of receiving an input from the user based on a reception history of the menu. The display device according to any one of claims 1 to 4.   When it is determined that the display mode is to be changed, the display control unit controls the display unit to change and display the display range of the icon on the side closer to the driver's seat of the display unit. The display device according to any one of claims 1 to 5. Passenger determination means for determining whether there is a passenger in the passenger seat of the vehicle,
When it is determined that the passenger is present in the passenger seat and the display form is to be changed, the display control unit controls the display unit to display a display range of the icon of the display unit. The display device according to claim 1, wherein the display is changed to a side closer to the passenger seat and displayed. Based on the information acquired by the acquisition means, comprising a situation determination means for determining whether or not the driver of the vehicle is in a dangerous situation when viewing the display unit,
The display control means controls the display unit so as not to display the icon when it is determined that the driver of the vehicle is in a dangerous situation when the driver visually recognizes the display unit. The display apparatus as described in any one of -7. In a display method in a display device for displaying an icon for accepting an input to execute various menus from a user on a display unit provided in a vehicle,
A travel determination step for determining whether the vehicle is traveling;
When it is determined that the vehicle is traveling, an acquisition step of acquiring at least one information of information on a state of the route on which the vehicle is traveling, weather, or date and time;
A display mode determination step for determining whether to change the display mode of the icon based on the information acquired by the acquisition step;
When it is determined to change the display form of the icon, the display control step of controlling the display unit to change and display the display form of the icon;
A display method comprising:   A display program for causing a computer to execute the display method according to claim 9.   A computer-readable recording medium having the display program according to claim 10 recorded thereon.

Images