WO2014049705A1

WO2014049705A1 - Display control device, display control method, program, and server device

Info

Publication number: WO2014049705A1
Application number: PCT/JP2012/074682
Authority: WO
Inventors: 高橋　勇治
Original assignee: パイオニア株式会社; パイオニアシステムテクノロジー株式会社
Priority date: 2012-09-26
Filing date: 2012-09-26
Publication date: 2014-04-03

Abstract

A display control device is provided with: an acquisition unit which acquires the present position of a mobile object; an estimation unit which, on the basis of the remaining energy amount possessed by the mobile object, estimates the travelable distance of the mobile object; and a display control unit which causes a display unit to display a guidance image including a place-name. The display control unit performs control such that the display form of the guidance image differs according to whether or not the distance from the present position to a position specified by the place-name included in the guidance image is within the travelable distance estimated by the estimation unit.

Description

Display control device, display control method and program, and server device

The present invention relates to the technical field of displaying guidance images.

2. Description of the Related Art Conventionally, a technique for estimating a cruising range based on a remaining capacity of an electric vehicle battery and displaying a cruising range (reachable range) on a map is known (see, for example, Patent Document 1). .

JP 2011-217509 A

However, in the conventional technology, for example, it is not possible for the user to quickly grasp whether or not the mobile object can reach the place corresponding to the place name indicated on the guide sign installed near the intersection. It was.

The above is one example of problems to be solved by the present invention. The main object of the present invention is to provide a display control device or the like that allows a user to quickly grasp whether or not a mobile object can reach a place corresponding to a place name indicated on a guide sign. Objective.

In the invention according to claim 1, the display control device estimates the cruising distance of the moving body based on the acquisition unit that acquires the current position of the moving body and the remaining energy that the moving body holds. A display control unit that displays a guidance image including a place name on the display unit, and the display control unit has a distance from the current position to a position specified by the place name included in the guidance image. The display mode of the guidance image is controlled to be different depending on whether or not it is within the cruising distance estimated by the estimation unit.

In the invention according to claim 3, the display control device estimates the cruising distance of the moving body based on the acquisition unit that acquires the current position of the moving body and the remaining energy that the moving body holds. A recognition unit that recognizes a guide sign from a peripheral image captured by the imaging unit, a display control unit that displays a guidance image on the display unit, and a recognition unit that recognizes the current position from the recognition unit. A determination unit that determines whether or not a distance to the position specified by the place name indicated on the guide sign is within the cruising distance estimated by the estimation unit. .

In the invention according to claim 7, the display control device displays, on the display unit, an estimation unit that estimates the cruising range of the mobile body based on the remaining energy level of the mobile body, and a guidance image that includes the place name. A display control unit for displaying, wherein the display control unit is configured to determine whether a position specified by a place name included in the guidance image is included in the cruising range estimated by the estimation unit. Then, the display mode of the guidance image is controlled to be different.

In the invention according to claim 8, the server device obtains the current position of the moving body, and the estimation unit that estimates the cruising distance of the moving body based on the remaining amount of energy held by the moving body. A guidance image acquisition unit that acquires a guidance image including a place name, and the distance from the current position to a position specified by the place name included in the guidance image is estimated by the estimation unit. And a transmission unit that generates a guidance image with a different display form according to whether the distance is within the distance and transmits the guidance image to the terminal device.

In a ninth aspect of the invention, the display control method executed by the display control device includes an acquisition step of acquiring the current position of the moving body, and the remaining amount of energy held by the moving body. An estimation step for estimating a cruising distance, and a display control step for displaying a guidance image including a place name on a display unit, wherein the display control step is specified by a place name included in the guidance image from the current position. Control is performed so that the display form of the guidance image is made different depending on whether or not the distance to the position is within the cruising range estimated by the estimation step.

In a tenth aspect of the present invention, the program executed by the display control device including the computer is an acquisition unit that acquires a current position of the moving body, and based on a remaining energy level of the moving body, The computer is caused to function as estimation means for estimating a cruising distance, display control means for displaying a guidance image including a place name on a display unit, and the display control means includes a place name included in the guidance image from the current position. And controlling the display form of the guidance image to be different depending on whether or not the distance to the position specified by is within the cruising distance estimated by the estimation means. To do.

1 shows a schematic configuration of a navigation device according to a first embodiment. The figure for demonstrating an example of a guidance sign image is shown. An example of distance information is shown. An example of the guidance sign image to which the display control which concerns on 1st Example was applied is shown. The other example of distance information is shown. An example of the guidance sign image to which the display control which concerns on the modification of 1st Example was applied is shown. The schematic structure of the navigation apparatus concerning 2nd Example is shown. An example of the display image which concerns on 2nd Example is shown. An example of the display screen which concerns on the modification of 2nd Example is shown. The schematic structure of the head-up display which concerns on 3rd Example is shown. The example of a display by the head-up display which concerns on 3rd Example is shown. An example of the signboard showing the distance to the place corresponding to the place name is shown. The schematic structure of the system which concerns on the modification 4 is shown.

In one aspect of the present invention, the display control device includes an acquisition unit that acquires a current position of the moving body, and an estimation unit that estimates a cruising distance of the moving body based on a remaining energy level of the moving body. And a display control unit that displays a guidance image including a place name on the display unit, and the display control unit has a distance from the current position to a position specified by the place name included in the guidance image, Control is performed so as to change the display form of the guidance image according to whether or not it is within the cruising distance estimated by the estimation unit.

In the above display control device, the estimation unit estimates the cruising distance based on the remaining energy held by the moving body (for example, an electric vehicle), and the display control unit displays the guidance image including the place name (for example, near the intersection) And the like) are displayed on the display unit. Specifically, the display control unit determines whether the distance from the current position to the position specified by the place name included in the guidance image is within the cruising distance of the moving object. The display mode is controlled to be different. As a result, the user can easily grasp whether or not the place corresponding to the place name included in the guidance image is reachable.

Preferably, in the above display control device, when the guide image includes a plurality of place names, the distance from the current position to the position specified by the place name is the cruising distance. It is possible to display a place name that is within and a place name whose distance from the current position to the position specified by the place name is outside the cruising range in different display forms.

In another aspect of the present invention, the display control device includes an acquisition unit that acquires a current position of the mobile body, and an estimation unit that estimates a cruising distance of the mobile body based on a remaining energy level of the mobile body A recognition unit for recognizing a guide sign from a peripheral image captured by the photographing unit, a display control unit for displaying a guidance image on a display unit, and the recognition unit recognized by the recognition unit from the current position. A determination unit that determines whether or not a distance to the position specified by the place name indicated on the guide sign is within the cruising range estimated by the estimation unit.

In the display control device described above, the determination unit determines whether the distance from the current position to the position specified by the place name indicated by the guide sign recognized from the surrounding image of the moving body is within the cruising range. Determine whether. And a display control part displays the image for guidance according to the judgment result of a judgment part. Preferably, the display control unit changes the display form of the guidance image based on the determination result. Thereby, it is possible to make the user easily grasp whether or not the place corresponding to the place name indicated on the guide sign is reachable.

Preferably, in the display control device, the display control unit displays the guide sign recognized by the recognition unit as the guide image, and the place name is indicated by the guide sign.

Further preferably, the display control unit obtains a range having a predetermined width as a distance from the current position to the position specified by the place name, and the range exceeds the cruising distance; The display form of the guidance image can be made different between when the vehicle includes the cruising range and when the range is less than the cruising range.

In another aspect of the present invention, the display control device displays, on the display unit, an estimation unit that estimates a cruising range of the moving body based on the remaining amount of energy held by the moving body, and a guidance image including a place name. A display control unit that controls whether the position specified by the place name included in the guidance image is included in the cruising range estimated by the estimation unit. The display mode of the guidance image is controlled to be different.

In another aspect of the present invention, the server device includes: an acquisition unit that acquires a current position of the moving body; an estimation unit that estimates a cruising distance of the moving body based on a remaining amount of energy held by the moving body; A guide image acquisition unit that acquires a guide image including a place name, and the cruising distance in which the distance from the current position to the position specified by the place name included in the guide image is estimated by the estimation unit And a transmission unit that generates a guidance image with a different display form according to whether the guidance image is within the terminal apparatus and transmits the guidance image to the terminal device.

In another aspect of the present invention, a display control method executed by a display control device includes: an acquisition step of acquiring a current position of a moving body; and a cruising of the moving body based on a remaining amount of energy held by the moving body. An estimation step for estimating a possible distance, and a display control step for displaying a guidance image including a place name on a display unit, wherein the display control step is specified by a place name included in the guidance image from the current position. Control is performed so that the display form of the guidance image varies depending on whether or not the distance to the position is within the cruising distance estimated in the estimation step.

In another aspect of the present invention, a program executed by a display control device including a computer includes: acquisition means for acquiring a current position of a moving body; cruising of the moving body based on a remaining energy level of the moving body The computer is made to function as an estimation unit for estimating a possible distance, a display control unit for displaying a guidance image including a place name on a display unit, and the display control unit is configured based on a place name included in the guidance image from the current position. Control is performed so that the display form of the guidance image varies depending on whether or not the distance to the specified position is within the cruising distance estimated by the estimation means.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<First embodiment>
First, a first embodiment of the present invention will be described.

(Device configuration)
FIG. 1 shows a configuration of a navigation device 1 according to the first embodiment. The navigation device 1 can be, for example, a stationary navigation device installed in a vehicle, a PND (Portable Navigation Device), or a mobile phone such as a smartphone. In a preferred example, the navigation device 1 is mounted on an electric vehicle (EV vehicle). Below, the case where the navigation apparatus 1 is applied to an electric vehicle is mentioned as an example. An electric vehicle is sometimes simply referred to as a “vehicle”.

As shown in FIG. 1, the navigation device 1 mainly includes an independent positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, and a display unit 40. A voice output unit 50 and an input device 60.

The self-supporting positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position (current position) of the vehicle from latitude and longitude information. Note that the current position used in various controls and processes is not limited to using the value acquired from the GPS receiver 18, but the value acquired from the GPS receiver 18 and / or acquired from the autonomous positioning device 10. A value obtained based on the obtained value may be used.

The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation device 1.

The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. For example, the CPU 22 obtains a guidance route (guidance route) to the destination based on the map data stored in the data storage unit 36, and performs route guidance based on the guidance route. Details of processing and control performed by the CPU 22 in this embodiment will be described later. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50 and an input device 60 are mutually connected via a bus line 30. It is connected to the.

The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

The data storage unit 36 is configured by, for example, an HDD or the like, and stores map data (map information), distance information to be described later, information necessary for obtaining a cruising distance, and the like.

The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and receives various types of information. The interface 37 performs an interface operation of the communication device 38 and inputs information received by the communication device 38 to the system controller 20 or the like.

The display unit 40 displays various display data on a display unit such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays a map image or the like corresponding to the map data read from the data storage unit 36 by the system controller 20 on the display screen. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30, and image information that can be displayed immediately, such as a VRAM (Video） RAM) memory. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal based on image data output from the graphic controller 41, and a display 44 are provided. The display 44 functions as an image display unit, and includes, for example, a liquid crystal display device having a diagonal size of about 5 to 10 inches and is mounted near the front panel in the vehicle.

The audio output unit 50 performs D / A (Digital-to-Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

(Display control method)
Next, a display control method performed by the CPU 22 in the navigation device 1 in the first embodiment will be described. In the first embodiment, the CPU 22 allows the user to quickly grasp whether or not the vehicle can reach the place corresponding to the place name included in the guidance sign installed near the intersection. I do. Specifically, the CPU 22 performs control to display an image simulating a guide sign (hereinafter referred to as “guide sign image”) on the display 44. Then, the CPU 22 determines that the distance from the current position to the position specified by the place name included in the guidance sign image (hereinafter referred to as “guidance point distance” as appropriate) is a vehicle (electric vehicle) on which the navigation device 1 is mounted. Depending on whether or not it is within the cruising range, control is performed so that the display form of the guide sign image is different.

The guide sign image displays the destination place name, the arrow indicating the destination direction, the distance to the place corresponding to the place name, etc., as well as the guide signs (direction signs, etc.) installed near intersections. It is an image to be. Information relating to the guide sign image is stored in the data storage unit 36 in association with the position of an intersection, for example. Then, the CPU 22 refers to the information on the guide sign image stored in the data storage unit 36 and displays the guide sign image at a predetermined timing when the vehicle approaches an intersection or the like. The CPU 22 displays the guidance sign image regardless of whether or not the destination is set (in other words, whether or not route guidance is being performed). Such a guidance sign image is an example of the “guidance image” in the present invention.

Here, the reason for performing the display control as described above will be described. Conventionally, the cruising distance of an electric vehicle is displayed together with the distance to the destination. Such a display is convenient because it is possible to easily grasp the necessity of charging on the road only by comparing the numerical values. However, when the vehicle travels without setting a destination in the navigation device 1 (in other words, when no route guidance is provided, for example, when heading to a known destination), the distance to the destination is not displayed. In this case, the user needs to determine whether charging is necessary from the displayed cruising range. For example, the user derives the distance to the destination from information such as his / her memory, sense of distance (landscape), information signs, etc., and determines whether or not charging is necessary from the distance and the cruising distance. . Therefore, it becomes difficult to appropriately determine whether charging is necessary.

The following solutions can be considered for such problems. As one solution, a method in which the user sets a destination each time and displays the distance to the destination can be considered. However, in this method, the troublesome operation by the user becomes a problem. As another solution, for example, a method of displaying a cruising range as shown in Patent Document 1 described above can be considered. However, in this method, since it takes time to calculate the cruising range, there is a problem that it is difficult to display in real time while traveling. In addition, there is also a problem that the map scale that is optimal for displaying the cruising range does not match the map scale that is optimal for use by the user for checking while driving.

From the above, in the first embodiment, a display is provided so that the user can easily grasp how far the vehicle can travel without any particular operation. Specifically, in the first embodiment, a place name included in the guide sign image is displayed using a guide sign image that is displayed regardless of whether or not the destination is set (in other words, whether or not route guidance is performed). The guide sign image is displayed in such a display form that it can be grasped whether or not the vehicle can reach the place corresponding to. More specifically, the CPU 22 estimates the cruising distance of the electric vehicle on which the navigation device 1 is mounted, and the distance from the current position to the position specified by the place name included in the guidance sign image (guidance point distance). Depending on whether or not it is within the cruising distance, the display form of the guide sign image is varied. For example, when a plurality of place names are included in the guide sign image, the CPU 22 displays the place names whose guide point distance is within the cruising distance and the place names whose guide point distance is outside the cruising distance in different display forms. Let

Thus, the CPU 22 corresponds to an example of “acquisition unit”, “estimation unit”, and “display control unit” in the present invention. That is, the CPU 22 corresponds to an example of a “display control device” in the present invention.

Here, the CPU 22 estimates the cruising distance of the electric vehicle based on the remaining energy of the electric vehicle battery and the energy consumed when the electric vehicle travels. Regarding the energy consumed when the electric vehicle travels, for example, the energy consumed when the electric vehicle is stopped when the drive source of the electric vehicle is operating, the energy consumed and recovered when the electric vehicle is accelerated or decelerated, It is obtained based on energy consumed by resistance generated when the electric vehicle travels. In obtaining these energies, the characteristics of the electric vehicle (vehicle weight, motor generator standards, etc.), the deterioration of the battery, the use of electrical components in the electric vehicle, the use of the air conditioner, Various parameters are used, such as the number of passengers in the car, the slope of the road, the type of road, the presence or absence of traffic jams, and how the driver is driving. In this embodiment, the method for estimating the cruising distance is not particularly limited, and various known methods can be applied.

Further, in this embodiment, the CPU 22 uses the distance from the intersection where the guide sign corresponding to the guide sign image is installed, not the distance from the current position, as the guide point distance described above. That is, the position of the intersection is used as the position for defining the guide point distance, not the current position. This is because the position of the vehicle when the guidance sign image is displayed is a position near the intersection, and it is not particularly problematic to define the guidance point distance by regarding the current position at this time as the position of the intersection. Because it can be said. In addition, it is not limited to using the position of an intersection as a position for defining a guidance point distance, You may use a present position. In that case, the CPU 22 uses the current position (position coordinates) obtained based on the values obtained from the self-supporting positioning device 10 and / or the GPS receiver 18.

In addition, in the present embodiment, the guide point distance obtained in advance and stored in the data storage unit 36 is used. By determining the position coordinates for the position specified by the place name included in the guide sign image, the guide point distance can be obtained from the position coordinates and the position coordinates of the intersection. The guide point distance thus obtained is stored in the data storage unit 36 as distance information in association with the place name included in the guide sign image. When a plurality of place names are included in the guide sign image, the distance information is information in which the guide point distance is associated with each place name. The distance information is associated with, for example, the position of an intersection. The CPU 22 obtains the guide point distance by referring to the distance information stored in the data storage unit 36 in this way, and performs the display control described above.

Note that the display control described above is executed regardless of whether or not the destination is set (in other words, whether or not route guidance is performed).

(Display control example)
Next, a specific example of display control according to the first embodiment will be described with reference to FIGS.

FIG. 2 shows a diagram for explaining an example of the guide sign image displayed on the display 44. As shown in FIG. 2, the guide sign image 72 is displayed on the display 44 together with a map image that is generated based on the map data stored in the data storage unit 36 and shows a map around the current position 70 of the vehicle. The guide sign image 72 is an image corresponding to the guide sign installed at the intersection 71, and displays a destination place name (place names A to C) and an arrow indicating the destination direction. The guide sign image 72 is displayed when the vehicle travels through the intersection 71 in the direction of the arrow Ar1. FIG. 2 shows a guide sign image 72 to which the display control according to the present embodiment as described above is not applied.

FIG. 3 shows an example of the distance information described above. Specifically, FIG. 3 shows distance information for the guide sign image 72 shown in FIG. That is, the distance information is used when the intersection 71 travels in the traveling direction indicated by the arrow Ar1. As shown in FIG. 3, in the distance information, the distance (guidance point distance) from the intersection 71 to the position specified by the place name is associated with each place name (place names A to C). Specifically, the place name A is associated with 40 km as the guide point distance, the place name B is associated with 25 km as the guide point distance, and the place name C is associated with 1 km as the guide point distance. Such distance information is stored in the data storage unit 36 in association with the position of the intersection 71 as described above.

FIG. 4 shows an example of a guidance sign image to which the display control according to the first embodiment is applied. Specifically, in FIGS. 4A and 4B, the display control according to the first embodiment is applied to the guide sign image 72 shown in FIG. 2 based on the distance information shown in FIG. In this case, guide

sign images

72a and 72b are shown. The

guide sign images

72a and 72b are displayed on the display 44 together with the map image instead of the guide sign image 72 (see FIG. 2).

FIG. 4A shows a guide sign image 72a that is displayed when the estimated cruising range is 30 km. In this case, the guide point distance (40 km) of the place name A is longer than the cruising distance, and the guide point distances (25 km, 1 km) of the place names B and C are shorter than the cruising distance. In other words, it can be said that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance, and the place corresponding to the place names B and C can be reached. In this case, the CPU 22 displays the place name A and the place names B and C in different forms as indicated by reference numerals 72a1, 72a2, and 72a3. Specifically, the CPU 22 shades the characters of the place name A, as indicated by reference numeral 72a1, in order to make the user know that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance. Is displayed. On the other hand, since the place corresponding to the place names B and C can be reached at the current cruising distance, the CPU 22 does not shade the letters of the place names B and C as indicated by reference numerals 72a2 and 72a3. Display.

FIG. 4B shows a guide sign image 72b that is displayed when the estimated cruising range is 20 km. In this case, the guide point distances (40 km, 25 km) for the place names A and B are longer than the cruising distance, and the guide point distance (1 km) for the place name C is shorter than the cruising distance. That is, it can be said that there is a high possibility that the place corresponding to the place names A and B cannot be reached at the current cruising distance, and the place corresponding to the place name C can be reached. In this case, the CPU 22 displays the place names A and B and the place name C in different forms as indicated by reference numerals 72b1, 72b2 and 72b3. Specifically, as shown by reference numerals 72b1 and 72b2, the CPU 22 recognizes that the place names A, B are likely to be unable to reach the places corresponding to the place names A and B at the current cruising distance. The letter B is shaded and displayed. On the other hand, since the location corresponding to the place name C can be reached at the current cruising distance, the CPU 22 displays the place name C without shading, as indicated by reference numeral 72b3.

According to such

guide sign images

72a and 72b, the user can easily grasp whether or not the place corresponding to the place name included in the

guide sign images

72a and 72b is reachable.

In FIG. 4, an example in which the display form of the place name where the guide point distance is outside the cruising distance and the place name where the guide point distance is within the cruising distance is different depending on the presence or absence of shading attached to the characters of the place name. Although shown, the method of changing the display form is not limited to this. In another example, the display form of the place name whose guidance point distance is outside the cruising distance and the place name whose guidance point distance is within the cruising distance can be made different depending on the color attached to the characters of the place name. In one example, a place name whose guide point distance is outside the cruising distance can be displayed in red characters, and a place name character whose guide point distance is within the cruising distance can be displayed in white letters. In yet another example, a place name whose guidance point distance is outside the cruising distance and a place name whose guidance point distance is within the cruising distance can be displayed with different characters or symbols. In one example, for place names where the guide point distance is outside the cruising distance, a symbol such as “×” indicating that there is a high possibility that the guide point distance is not reachable is attached, and for the place names where the guide point distance is within the cruising distance Can be marked with a symbol such as “◯” indicating that it can be reached.

(Modification of the first embodiment)
Next, a modification of the first embodiment will be described. The modification of the first embodiment differs from the first embodiment described above in that a guide point distance having a certain width is used. That is, in the modified example of the first embodiment, instead of using a specific position indicating one point on the map as the position specified by the place name included in the guide sign image, an area having a predetermined range on the map By using, the width of the guide point distance is provided. This is because it may be desirable to specify the place name included in the guide sign image in an area having a predetermined range on the map rather than specifying it at a specific position pointing to one point on the map. is there. In the modification of the first embodiment, the CPU 22 can travel the place name where the range of the guide point distance exceeds the cruising distance, the place name where the range of the guide point distance is less than the cruising distance, and the range of the guide point distance. The place name including the distance is displayed in a different display form.

FIG. 5 shows an example of distance information according to a modification of the first embodiment. Specifically, FIG. 5 shows distance information for the guide sign image 72 shown in FIG. That is, the distance information is used when the intersection 71 travels in the traveling direction indicated by the arrow Ar1. As shown in FIG. 5, in the distance information, the guide point distance is associated with each place name (place names A to C). Specifically, the place name A is associated with a guide point distance in the range of 35 to 45 km, the place name B is associated with a range of 20 to 25 km as the guide point distance, and the place name C is 1 to 2 km. A range is associated as a guide point distance. For example, if a range (coordinate range) on the map used for the place names A, B, and C is determined, the guide point distances for such place names A, B, and C are determined from the range and the position coordinates of the intersection 71. Can be requested.

Note that the distance information shown in FIG. 5 is also stored in the data storage unit 36 in association with the position of the intersection 71 and the like. In FIG. 5, all the guide point distances included in the distance information have a width, but only some of the guide point distances have a width, and other guide point distances have a width. Such distance information may not be used.

FIG. 6 shows an example of a guide sign image to which display control according to a modification of the first embodiment is applied. Specifically, FIGS. 6A and 6B show the display control according to the modification of the first embodiment with respect to the guide sign image 72 shown in FIG. 2 based on the distance information shown in FIG. The

guide sign image

72c, 72d at the time of applying is shown. The

guide sign images

72c and 72d are displayed on the display 44 together with the map image instead of the guide sign image 72 (see FIG. 2).

FIG. 6A shows a guide sign image 72c displayed when the estimated cruising range is 40 km. In this case, the range of the guide point distance of the place name A (35 to 45 km) includes the cruising distance, and the range of the guide point distance of the place names B and C (20 to 25 km, 1 to 2 km) is the cruising distance. Is below. That is, it can be said that the place corresponding to the place name A may not be reached at the current cruising distance, and the place corresponding to the place names B and C can be reached. In this case, the CPU 22 displays the place name A and the place names B and C in different forms as indicated by reference numerals 72c1, 72c2, and 72c3. Specifically, the CPU 22 shades the characters of the place name A as shown by reference numeral 72c1 in order to make the user know that there is a possibility that the place corresponding to the place name A may not be reached at the current cruising distance. To be displayed. On the other hand, since the place corresponding to the place names B and C can be reached at the current cruising distance, the CPU 22 does not shade the letters of the place names B and C as indicated by reference numerals 72c2 and 72c3. Display.

FIG. 6B shows a guide sign image 72d displayed when the estimated cruising distance is 22 km. In this case, the range of the guide point distance of the place name A (35 to 45 km) exceeds the cruising distance, and the range of the guide point distance of the place name B (20 to 25 km) includes the cruising distance. The range of the guide point distance for C (1-2 km) is below the cruising range. In other words, it can be said that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance, and the place corresponding to the place name B may not be reached. Can be reached. In this case, the CPU 22 displays the place name A, the place name B, and the place name C in different forms as indicated by reference numerals 72d1, 72d2, and 72d3. Specifically, the CPU 22 shades the characters of the place name A, as indicated by reference numeral 72d1, in order to make the user know that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance. Is displayed. Specifically, the CPU 22 adds a shade of darker color to the characters of the place name A than the shade (see reference numeral 72c1) shown in FIG. On the other hand, the CPU 22 shades the characters of the place name B as shown by reference numeral 72d2 in order to make the user know that there is a possibility that the place corresponding to the place name B cannot be reached at the current cruising distance. To display. Specifically, the CPU 22 adds a shade of lighter color to the characters of the place name B than the shade attached to the place name A (see reference numeral 72d1). On the other hand, since the location corresponding to the place name C can be reached at the current cruising distance, the CPU 22 displays the place name C without shading, as indicated by reference numeral 72d3.

According to such

guide sign images

72c and 72d, it is highly likely that the place corresponding to the place name included in the

guide sign images

72c and 72d cannot be reached by using the guide point distance having a width, or The user can easily grasp that there is a possibility that the place corresponding to the place name cannot be reached or that the place corresponding to the place name can be reached.

In addition, in FIG. 6, the place name where the range of the guide point distance exceeds the cruising distance, the place name where the range of the guide point distance includes the cruising distance, depending on the darkness and presence of the shaded character attached to the characters of the place name, Although the example of changing the display form with the place name where the range of the guide point distance is less than the cruising range is shown, the method of changing the display form is not limited to this. In another example, the display form can be varied depending on the color attached to the characters of the place name. In one example, a place name where the range of the guide point distance exceeds the cruising distance is displayed in red characters, a place name whose range of the guide point distance includes the cruising distance is displayed in yellow characters, and the guide point distance is displayed. Place names whose range is less than the cruising range can be displayed in white letters. In another example, a place name where the range of the guidance point distance exceeds the cruising distance, a place name where the range of the guidance point distance includes the cruising distance, and a place name where the range of the guidance point distance is less than the cruising distance. , Can be displayed with different characters and symbols. In one example, a place name whose range of the guide point distance exceeds the cruising range is marked with a symbol “x” indicating that it is highly likely that it cannot be reached, and the range of the guide point range includes the cruising range. For place names that are in the area, a symbol such as “△” is shown to indicate that the destination may be unreachable, and for places where the range of the guide point distance is less than the cruising range, a symbol such as “○” is shown to indicate that the destination is reachable. be able to.

In the above-described first embodiment (including modifications), an example in which a guide sign image corresponding to a guide sign actually installed near an intersection is displayed, but such a guide sign image is displayed. There is no limit to making it happen. In another example, a guidance sign image can be displayed even at an intersection where no guidance sign is installed. In this case, for an intersection where no guide sign is installed, a similar guide sign image can be displayed by, for example, pre-determining a place name indicating the direction of the destination. Also, the display control described above can be applied to such guide sign images by prescribing the distance information in advance.

<Second embodiment>
Next, a second embodiment will be described. In the second embodiment, the periphery of the vehicle (front landscape) is photographed with a camera, and a photographed image (real landscape image) obtained by photographing is displayed on the display 11 for guidance. In the second embodiment, the guide sign is recognized by analyzing the captured image, and the distance from the current position to the position specified by the place name indicated in the recognized guide sign (hereinafter, the distance is described below). In addition, it is assumed that the word “guide distance” is within the cruising range. In the second embodiment, control is performed to superimpose a display form image (hereinafter simply referred to as “superimposed image”) according to the determination result on a guide sign in the captured image. Such a superimposed image is an example of the “guidance image” in the present invention.

In the first embodiment described above, the control sign image corresponding to the guide sign is displayed, and control is performed to change the display form of the guide sign image depending on whether or not the guide point distance is within the cruising distance. However, in the second embodiment, instead of such a guide sign image, a guide sign included in the photographed image of the camera is used, and the photographed image is determined depending on whether the guide point distance is within the cruising distance. Control to superimpose the superimposed image on the inside guide sign is performed.

In the following, description of the same configuration and control as in the first embodiment will be omitted, and only the configuration and control different from those in the first embodiment will be described. That is, the configuration and control not specifically described here are the same as those in the first embodiment.

FIG. 7 shows the configuration of the navigation device 1a according to the second embodiment. The navigation device 1a according to the second embodiment is different from the navigation device 1 according to the first embodiment in that it includes a camera 65 (imaging unit). The camera 65 captures a landscape in front of the vehicle and supplies a captured image obtained by the capture to the CPU 22. In addition, when the camera which image | photographs the scenery ahead of a vehicle is provided in the vehicle, the navigation apparatus 1a does not need to have the camera 65. FIG. That is, the second embodiment is not limited to the application to the navigation apparatus 1a having the camera 65, and can be applied to a navigation apparatus without the camera 65 when the camera is provided in the vehicle. is there.

Here, the control performed by the CPU 22 in the navigation device 1a in the second embodiment will be described. In the second embodiment, the CPU 22 performs control to display the captured image on the display 11 in order to perform guidance using the captured image obtained by capturing with the camera 65. In the second embodiment, the CPU 22 analyzes the captured image to determine whether the captured image includes a guide sign. Then, when the guidance image is included in the photographed image, the CPU 22 shows the guidance sign recognized from the photographed image from the current position (may be the position of the intersection as described in the first embodiment). It is determined whether or not the distance (guide point distance) to the position specified by the place name is within the cruising range. In this case, the CPU 22 recognizes the place name shown on the guide sign by analyzing the captured image. Moreover, CPU22 acquires the guidance point distance about the recognized place name with reference to the distance information (refer FIG.3 and FIG.5) memorize | stored in the data storage unit 36 as shown in 1st Example. In addition, the CPU 22 estimates the cruising distance by the method described above.

And CPU22 performs control which superimposes a superimposition image on the guidance sign in a picked-up image according to the judgment result whether a guidance point distance is in the cruising range. For example, the CPU 22 performs control to superimpose a superimposed image indicating that there is a high possibility that it cannot be reached for a place name whose guidance point distance is outside the cruising distance in the photographed image, and guide point distance in the photographed image. Such superimposed images are not superimposed on place names that are within the cruising range.

Thus, in the second embodiment, the CPU 22 corresponds to an example of “acquisition unit”, “estimation unit”, “recognition unit”, “display control unit”, and “determination unit” in the present invention. That is, the CPU 22 corresponds to an example of a “display control device” in the present invention.

FIG. 8 shows an example of a display image according to the second embodiment. 8A and 8B, an image 80 is an example of a photographed image of the front scenery of the vehicle obtained by photographing with the camera 65. This captured image 80 includes a guide sign 81. In this case, the CPU 11 determines whether the distance (guidance point distance) from the current position (or intersection position) to the position specified by the place names A to C indicated on the guidance sign 81 is within the cruising range. Judge whether or not.

FIG. 8A shows a case where the guide point distance of the place name A can continue when the distance information as shown in FIG. 3 (distance information in which the guide point distance having no width is associated with the place name) is used. It shows an image that is displayed when it is longer than the distance and the guide point distance of the place names B and C is shorter than the cruising distance. In this case, the CPU 11 displays a superimposed image 82 (an image including a symbol “x”) indicating that there is a high possibility that the location corresponding to the place name A cannot be reached at the current cruising distance in the captured image. It is displayed next to the letter of place name A. On the other hand, since the place corresponding to the place names B and C can be reached at the current cruising distance, the CPU 22 does not display the superimposed image for the place names B and C in the captured image.

FIG. 8B shows the range of the guide point distance of the place name A when the distance information as shown in FIG. 5 (distance information in which the guide point distance having a width is associated with the place name) is used. An image displayed when the range of the guide point distance of the place name B includes the cruising distance and the range of the guide point distance of the place name C is less than the cruising distance is exceeded. In this case, the CPU 11 displays a superimposed image 83 (an image including a symbol such as “x”) indicating that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance in the captured image. It is displayed next to the letter of place name A. On the other hand, the CPU 11 displays a superimposed image 84 (an image including a symbol such as “!”) Indicating that there is a possibility that the place corresponding to the place name B cannot be reached at the current cruising distance of the place name B in the captured image. Display next to the character. On the other hand, since the location corresponding to the place name C can be reached at the current cruising distance, the CPU 22 does not display a superimposed image for the place name C in the captured image.

According to such superimposed images 82 to 84, the user can easily grasp whether or not the place corresponding to the place name indicated on the guide sign 81 is reachable.

(Modification of the second embodiment)
Next, a modification of the second embodiment will be described.

FIG. 9 shows an example of a display screen according to a modification of the second embodiment. In the modification of the second embodiment, an image 92 corresponding to the guide sign 91 included in the captured image 90 is displayed separately from the captured image 90 of the scenery in front of the vehicle. The image 92 is an image obtained by extracting and enlarging the portion of the guide sign 91 in the captured image 90. Such an image 92 is an example of the “guidance image” in the present invention.

In the modification of the second embodiment, the superimposed image 93 is superimposed on the image 92 corresponding to the guide sign 91 and displayed. In the example shown in FIG. 9, a superimposed image 93 indicating that there is a high possibility that the location corresponding to the place name A cannot be reached at the current cruising distance is displayed next to the place name A in the image 92. Has been. According to such a modification, the user can be more accurately grasped whether or not the place corresponding to the place name indicated on the guide sign 91 can be reached.

Note that the image 92 corresponding to the guide sign 91 may not be updated as the captured image 90 changes, and the same image may be used continuously regardless of the change in the captured image 90. That is, once the image 92 corresponding to the guide sign 91 is created from the captured image 90, the image 92 may be used continuously. In other words, because the forward scenery changes as the vehicle travels, the captured image 90 changes, and the position and size of the guide sign 91 in the captured image 90 change, but the image 92 that matches such change is used. It is not necessary. By doing so, it is possible to reduce processing related to display control.

Further, the image 92 as shown in FIG. 9 may be displayed instead of the guide sign image 72 (see FIG. 2 etc.) shown in the first embodiment. That is, the captured image 90 is acquired by capturing the front landscape of the vehicle, and the image 92 generated by extracting the portion of the guide sign 91 in the captured image 90 is combined with the map image generated based on the map data. It may be displayed. When such an image 92 is displayed, a superimposed image as shown in the second embodiment may be displayed depending on whether the guide point distance is within the cruising range.

<Third embodiment>
Next, a third embodiment will be described. In the second embodiment, the superimposed image is superimposed on the captured image obtained by photographing the front landscape of the vehicle. However, in the third embodiment, the same superimposed image as that in the second embodiment is superimposed on the front landscape of the vehicle itself. . Specifically, in the third embodiment, a superimposed image is superimposed on a guide sign in the front scenery using a head-up display that visually recognizes an image as a virtual image from the position (eye point) of the driver.

In the following, description of the same configuration and control as in the first and second embodiments will be omitted, and only the configuration and control different from those in the first and second embodiments will be described. That is, the configuration and control not specifically described here are the same as those in the first and second embodiments.

FIG. 10 is a schematic configuration diagram of the head-up display 2 according to the third embodiment. As shown in FIG. 10, the head-up display 2 includes a light source unit 3, a control unit 4, and a combiner 9, and is attached to a vehicle including a front window 25, a ceiling unit 27, a hood 28, a dashboard 29, and the like. It is done.

The light source unit 3 is installed on the ceiling 27 in the passenger compartment via the

support members

5a and 5b, and emits light constituting an image to be displayed toward the combiner 9. Specifically, the light source unit 3 generates an original image (real image) of the display image in the light source unit 3 based on the control of the control unit 4, and emits light constituting the image to the combiner 9. The virtual image “Iv” is visually recognized by the driver via the combiner 9. For example, the light source unit 3 has a light source such as a laser light source or an LCD light source, and emits light from the light source.

The combiner 9 is configured as a half mirror having a reflection function and a transmission function. The combiner 9 projects the display image emitted from the light source unit 3 and reflects the display image to the driver's eye point Pe to display the display image as a virtual image Iv. And the combiner 9 has the support shaft part 8 installed in the ceiling part 27, and rotates the support shaft part 8 as a spindle. The support shaft portion 8 is installed, for example, in the vicinity of the ceiling portion 27 in the vicinity of the upper end of the front window 25, in other words, the position where a sun visor (not shown) for the driver is installed. The support shaft portion 8 may be installed instead of the above-described sun visor.

The control unit 4 is built in the light source unit 3 and has a CPU, RAM, ROM, etc. (not shown), and performs general control of the head-up display 2. The control unit 4 can communicate with the navigation device 1a described above, and receives information about the superimposed image generated by the CPU 22 in the navigation device 1a from the navigation device 1a. Then, the control unit 4 performs control to superimpose on the forward scenery observed through the combiner 9 and display the superimposed image. Specifically, the control unit 4 performs control so that a superimposed image as a virtual image is superimposed and visually recognized on a guide sign in a forward scenery observed through the combiner 9.

In addition, as shown in FIG. 10, it is not limited to displaying an image using the combiner 9, You may display an image using a windshield instead of the combiner 9. FIG. The light source unit 3 is not limited to being installed on the ceiling portion 27, and the light source unit 3 may be installed inside the dashboard 29 instead of the ceiling portion 27.

In the third embodiment as well, as in the second embodiment, the CPU 22 in the navigation device 1a performs “acquisition unit”, “estimation unit”, “recognition unit”, “display control unit”, and “determination unit” according to the present invention. ”. That is, the CPU 22 in the navigation device 1a performs image analysis on a photographed image obtained by photographing with the camera 65 (shooting a range in which a real scene visually recognized by the driver via the combiner 9 is included). Thus, it is determined whether or not a guide sign is included in the photographed image, and when the guide sign is included in the photographed image, the guide sign recognized from the photographed image from the current position (or the position of the intersection). It is determined whether or not the distance (guide point distance) to the position specified by the place name shown in is within the cruising range. Then, the CPU 22 generates a superimposed image according to the determination result of whether or not the guide point distance is within the cruising distance, and supplies information on the generated superimposed image to the head-up display 2. For example, when a place name whose guide point distance is outside the cruising distance is included in the guide sign, the CPU 22 generates a superimposed image indicating that there is a high possibility that the place corresponding to the place name cannot be reached.

FIG. 11 shows a display example by the head-up display 2 according to the third embodiment. Specifically, FIG. 11 shows an example of a real image 100 (an image of a front landscape) that the driver visually recognizes through the combiner 9. This real image 100 includes a guide sign 101. In this case, the CPU 11 in the navigation device 1a can continue the distance (guide point distance) from the current position (or the position of the intersection) to the position specified by the place names A to C shown on the guide sign 101. It is determined whether it is within the distance. Here, it is assumed that the guide point distance of place name A is longer than the cruising distance, and the guide point distances of place names B and C are shorter than the cruising distance. In this case, the CPU 11 generates a superimposed image 102 (an image including a symbol such as “x”) indicating that there is a high possibility that the location corresponding to the place name A cannot be reached at the current cruising distance, and the information Is supplied to the control unit 4 in the head-up display 2. Then, the control unit 4 in the head-up display 2 performs control to display the superimposed image 102. Specifically, the control unit 4 performs display control so that the virtual image corresponding to the superimposed image 102 is visually recognized at a position corresponding to the place name A of the guide sign 101 observed through the combiner 9. On the other hand, since the location corresponding to the place names B and C can be reached at the current cruising distance, the CPU 22 does not generate a superimposed image for the place names B and C.

Such a superimposed image 102 allows the user to easily grasp whether or not the place corresponding to the place name indicated on the guide sign 101 is reachable.

In the third embodiment described above, the CPU 22 in the navigation device 1a functions as the “acquisition unit”, “estimation unit”, “recognition unit”, “display control unit”, and “determination unit” in the present invention. However, this is not a limitation. In another example, the “acquisition unit”, “estimation unit”, “recognition unit”, and “display control unit” in the present invention are realized by the CPU 22 in the navigation device 1a and the control unit 4 in the head-up display 2. Can do. In this example, the CPU 22 and the control unit 4 function as a “display control device” in the present invention. In one example, the CPU 22 can function as an “acquisition unit”, “estimation unit”, and “recognition unit”, and the control unit 4 can function as a “display control unit” and a “determination unit”.

In still another example, the “acquisition unit”, “estimation unit”, “recognition unit”, and “display control unit” in the present invention can be realized only by the control unit 4 in the head-up display 2. In order to realize this, the head-up display 2 may be provided with a self-supporting positioning device such as a GPS receiver and / or a distance sensor, and map data and distance information may be stored in a memory. In this example, the control unit 4 corresponds to an example of a “display control device” in the present invention.

<Modification>
Below, the modification suitable for an above-described Example is demonstrated. It should be noted that the following modifications can be applied to the above-described embodiments in any combination.

(Modification 1)
In the second and third embodiments described above, superimposed images are not displayed for place names whose guide point distance is within the cruising range (see FIGS. 8, 9 and 11), but the guide point distance is cruising. Superimposed images may also be displayed for place names that are within a possible distance. In that case, it is only necessary to display superimposed images of different display forms for the place name whose guidance point distance is outside the cruising distance and the place name whose guidance point distance is within the cruising distance. In one example, for a place name whose guide point distance is within the cruising range, a superimposed image including a symbol such as “◯” indicating that it can be reached can be displayed.

In the second and third embodiments, a superimposed image is displayed next to a place name character (see FIGS. 8, 9 and 11), but instead, it is superimposed on the place name character. A superimposed image may be displayed.

(Modification 2)
In the above-described embodiment, the distance information in which the place name and the guide point distance are associated is used (see FIGS. 3 and 5). Instead of using such distance information, the place name and the position of the place name are used. (It may be a position coordinate indicating a specific position or a coordinate range indicating a region) may be used. In this case, the guide point distance may be obtained based on the position associated with the place name.

Further, as shown in FIG. 12, for the guide sign 111 indicating the distance to the place corresponding to the place name, the distance information as described above may not be used. In this case, the distance indicated on the guide sign 111 may be used as it is as the guide point distance, and it is not necessary to obtain the guide point distance from the distance information or to obtain the guide point distance from the location of the place name. That is, it is not necessary to store the distance information in which the place name is associated with the guide point distance or the information in which the place name is associated with the position of the place name. What is necessary is just to memorize | store it as distance and to acquire the distance shown on the guidance signboard 111 as guidance point distance by analyzing a picked-up image. In the example shown in FIG. 12, by applying the display control according to the second or third embodiment, the superposition indicating that there is a high possibility that the place corresponding to the place name A cannot be reached at the current cruising distance. An image 112 is displayed superimposed on the guide sign 111.

(Modification 3)
In the above-described embodiment, the cruising distance of the electric vehicle is estimated, and whether or not the distance from the current position to the position specified by the place name included in the guidance sign image or the guidance sign is within the estimated cruising distance. Display control was performed accordingly. In another example, instead of the cruising distance, the cruising range of the electric vehicle is estimated, and whether or not the estimated cruising range includes the position specified by the guide sign image or the place name included in the guidance sign. Accordingly, display control can be performed. For example, depending on whether or not the position specified by the place name is included in the cruising range, control for changing the display form of the guide sign image and control for superimposing the superimposed image on the guide sign can be performed.

Here, the cruising range can be estimated by the following method, for example. First, based on the map data, the remaining battery energy of the electric vehicle, and the energy consumed when the electric vehicle travels, a plurality of reachable points that are points where the electric vehicle can be reached from the current position are searched. Is done. Regarding the energy consumed when the electric vehicle travels, for example, the energy consumed when the electric vehicle is stopped when the drive source of the electric vehicle is operating, the energy consumed and recovered when the electric vehicle is accelerated or decelerated, It is obtained based on energy consumed by resistance generated when the electric vehicle travels. In determining these energies, the characteristics of the electric vehicle (vehicle weight, motor generator standards, etc.), the deterioration of the battery, the use of electrical components in the electric vehicle, the use of the air conditioner, Various parameters such as the number of passengers, road gradient, road type, presence or absence of traffic jams, and how the driver drives are used. Then, based on the plurality of reachable points searched as described above, it is identified whether or not the electric vehicle can reach each of the plurality of regions (mesh regions) obtained by dividing the map. Accordingly, the electric vehicle's cruising range is required. In addition, it is not limited to calculating | requiring the cruising range by such a method, A well-known various method can be applied besides this.

(Modification 4)
In the above-described embodiment, an example in which the present invention is applied to the navigation devices 1 and 1a and the head-up display 2 has been described, but the present invention is not limited thereto. The present invention can also be applied to a server device that can communicate with a predetermined terminal device.

FIG. 13 is a block diagram illustrating a schematic configuration of a system according to the fourth modification. As shown in FIG. 13, the system includes a server device 200 and a terminal device 300. The server device 200 is configured to be communicable with the terminal device 300, and includes a CPU 200a and the like. For example, the terminal device 300 corresponds to a portable terminal such as a smartphone, a navigation device, a head-up display, or the like. The terminal device 300 is mounted on a moving body such as a vehicle.

In the fourth modification, the CPU 200a in the server device 200 acquires the current position of the vehicle from the terminal device 300 and the like, and also includes the place name from the storage device (not shown) in the terminal device 300 and the server device 200. A business image (such as a guide sign image) is acquired. In addition, the CPU 200a acquires the remaining amount of energy held by the vehicle (such as the remaining amount of energy of the battery of the electric vehicle), and estimates the cruising distance based on the remaining amount of energy. Then, the CPU 200a displays the guidance image having a different display form depending on whether or not the distance from the current position to the position specified by the place name included in the guidance image is within the estimated cruising distance. And the guidance image is transmitted to the terminal device 300. As described above, when the present invention is applied to the server device 200, the CPU 200a in the server device 200 uses the “acquisition unit”, “estimation unit”, “guidance image acquisition unit”, and “transmission unit” in the present invention. Function as.

In addition, it is not limited to implement | achieving the component which concerns on such this invention with the one server apparatus 200, The component which concerns on this invention is implement | achieved by a several server apparatus performing a process and control in cooperation It is also good to do.

(Modification 5)
The present invention is not limited to application to electric vehicles. The present invention can be applied to various mobile objects other than electric vehicles. For example, the present invention can be applied to a moving body that uses fossil fuel. In that case, the cruising range and the cruising range may be estimated based on the remaining amount of fossil fuel held by the mobile body.

The present invention can be applied to navigation devices (including mobile phones such as smartphones), head-up displays, server devices, and the like.

1, 1a Navigation device 2 Head-up display 4 Control unit 9 Combiner 22 CPU
36 Data storage unit 44 Display 65 Camera

Claims

An acquisition unit for acquiring the current position of the moving object;
An estimation unit that estimates a cruising distance of the mobile body based on a remaining energy level of the mobile body;
A display control unit for displaying a guide image including a place name on the display unit;
With
The display control unit is configured to determine whether a distance from the current position to a position specified by a place name included in the guidance image is within the cruising distance estimated by the estimation unit. Control to change the display form of the guidance image,
A display control device characterized by that.
When a plurality of place names are included in the guidance image, the display control unit includes a place name whose distance from the current position to the position specified by the place name is within the cruising distance, and the current position. Displaying a place name whose distance to the position specified by the place name is outside the cruising distance in a different display form;
The display control apparatus according to claim 1.
An acquisition unit for acquiring the current position of the moving object;
An estimation unit that estimates a cruising distance of the mobile body based on a remaining energy level of the mobile body;
A recognition unit for recognizing a guide sign from a peripheral image of the moving body imaged by the imaging unit;
A display control unit for displaying a guidance image on the display unit;
It is determined whether or not the distance from the current position to the position specified by the place name indicated by the guide sign recognized by the recognition unit is within the cruising distance estimated by the estimation unit. A determination unit;
A display control apparatus comprising:
The display control unit controls the display mode of the guidance image to be different based on the determination result of the determination unit.
The display control apparatus according to claim 3.
The display control unit displays the guidance sign recognized by the recognition unit as the guidance image,
The place name is indicated by the guide sign,
The display control apparatus according to claim 1, wherein the display control apparatus is a display control apparatus.
The display control unit obtains a range having a predetermined width as a distance from the current position to the position specified by the place name, and when the range exceeds the cruising distance, and the range is the cruising distance. And when the range is less than the cruising range, the display form of the guidance image is different.
The display control apparatus according to claim 1, wherein the display control apparatus is a display control apparatus.
An estimation unit that estimates a cruising range of the mobile body based on a remaining energy level of the mobile body;
A display control unit for displaying a guide image including a place name on the display unit;
With
The display control unit changes the display form of the guidance image according to whether or not the position specified by the place name included in the guidance image is included in the cruising range estimated by the estimation unit. Control to be different,
A display control device characterized by that.
An acquisition unit for acquiring the current position of the moving object;
An estimation unit that estimates a cruising distance of the mobile body based on a remaining energy level of the mobile body;
A guidance image acquisition unit that acquires a guidance image including a place name;
Guidance with different display forms depending on whether the distance from the current position to the position specified by the place name included in the guidance image is within the cruising distance estimated by the estimation unit A transmission unit that generates an image and transmits the guidance image to the terminal device;
A server device comprising:
A display control method executed by a display control device, comprising:
An acquisition step of acquiring the current position of the moving object;
An estimation step for estimating a cruising distance of the mobile body based on a remaining energy level of the mobile body;
A display control step for displaying a guide image including a place name on the display unit;
With
In the display control step, the distance from the current position to the position specified by the place name included in the guidance image is within the cruising distance estimated by the estimation step. Control to change the display form of the guidance image,
A display control method characterized by the above.
A program executed by a display control device including a computer,
Acquisition means for acquiring the current position of the moving object;
Estimating means for estimating the cruising distance of the mobile body based on the remaining energy level of the mobile body;
Display control means for displaying a guide image including a place name on the display unit;
Function the computer as
The display control means, depending on whether the distance from the current position to the position specified by the place name included in the guidance image is within the cruising distance estimated by the estimation means, Control to change the display form of the guidance image,
A program characterized by that.