WO2013046428A1 - Head-up display, display device and display method - Google Patents

Head-up display, display device and display method Download PDF

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Publication number
WO2013046428A1
WO2013046428A1 PCT/JP2011/072544 JP2011072544W WO2013046428A1 WO 2013046428 A1 WO2013046428 A1 WO 2013046428A1 JP 2011072544 W JP2011072544 W JP 2011072544W WO 2013046428 A1 WO2013046428 A1 WO 2013046428A1
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WO
WIPO (PCT)
Prior art keywords
display
icon
displayed
image
information
Prior art date
Application number
PCT/JP2011/072544
Other languages
French (fr)
Japanese (ja)
Inventor
祐一 松本
宮坂 峰輝
Original Assignee
パイオニア株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2011/072544 priority Critical patent/WO2013046428A1/en
Publication of WO2013046428A1 publication Critical patent/WO2013046428A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22Display screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23Head-up displays [HUD]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50Instruments characterised by their means of attachment to or integration in the vehicle
    • B60K35/53Movable instruments, e.g. slidable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60Instruments characterised by their location or relative disposition in or on vehicles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements for on-board computers
    • G01C21/3626Details of the output of route guidance instructions
    • G01C21/3635Guidance using 3D or perspective road maps
    • G01C21/3638Guidance using 3D or perspective road maps including 3D objects and buildings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements for on-board computers
    • G01C21/3626Details of the output of route guidance instructions
    • G01C21/365Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements for on-board computers
    • G01C21/3679Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
    • G01C21/3682Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities output of POI information on a road map
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16Type of output information
    • B60K2360/166Navigation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20Optical features of instruments
    • B60K2360/33Illumination features
    • B60K2360/334Projection means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77Instrument locations other than the dashboard
    • B60K2360/771Instrument locations other than the dashboard on the ceiling
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/014Head-up displays characterised by optical features comprising information/image processing systems

Definitions

  • the present invention relates to a technique for displaying information.
  • Patent Literature 1 discloses a head-up display that uses a windshield to display a bird's-eye view (overhead view) or a map image obtained by inverting the bird's-eye view above and below the driver's line-of-sight height.
  • Patent Document 2 displays a search screen in which the display scale is a concentric circle with the current position as a base point, calculates a display position based on the current position of a search target such as a destination, and sets the display position as the display position.
  • a technique for displaying a search mark indicating a search object is disclosed.
  • Patent Document 3 when a mobile terminal equipped with a GPS receiver is called through a telephone line and the mobile terminal receives an incoming call, the location of the mobile terminal is displayed on the screen together with map data. Techniques for making them disclosed are disclosed.
  • Patent Document 4 discloses a technique for displaying navigation information superimposed on a landscape image in front of a vehicle.
  • the name of the guidance point, the distance to the guidance point, etc. are indicated by characters in the display image of the route guidance information.
  • the driver's attention may be lost to reading the character.
  • the present invention has been made to solve the above-described problems, and provides a head-up display, a display device, and a control method capable of displaying appropriate guidance information during traveling and when stopped.
  • the main purpose is to provide.
  • the invention according to claim 1 is a head-up display, a display unit that displays a virtual image superimposed on a scene in front of the moving body, and an icon that indicates a display target existing around the current position of the moving body
  • Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes the mobile object Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when is stopped, and the character information is not displayed when the moving body is moving.
  • the invention according to claim 6 is a display device, comprising: a display unit that displays a virtual image superimposed on a scene in front of the moving body; and an icon that indicates a display target that exists around the current position of the moving body.
  • Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes: Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when stopped, and the character information is not displayed when the moving body is moving.
  • the invention according to claim 7 is a display method executed by a head-up display mounted on a moving body, wherein an icon indicating a display target point or a building existing around the current position of the moving body is A display step of displaying an image displayed so as to indicate a direction in which the display target point or the building exists on the basis of the current position of the moving object as a virtual image superimposed on a scenery in front of the moving object,
  • character information indicating characters corresponding to the icon is displayed in correspondence with the icon, and when the moving body is moving, the character information is displayed. It is characterized by not letting it.
  • composition of a system concerning an example. It is a schematic structure of a navigation apparatus. It is a schematic structure of a head-up display. The display of the front window visually recognized by the driver is shown. The other example of a display by a head up display is shown. The example of a display during the driving
  • the head-up display includes display means for displaying a virtual image superimposed on a scene in front of the moving object, and an icon indicating a display object existing around the current position of the moving object.
  • Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes the mobile object Is stopped, character information indicating characters corresponding to the icon is displayed as characters, and when the moving body is moving, the character information is not displayed.
  • the head-up display is mounted on a moving body such as a vehicle, and generates a virtual image in front of the windshield, for example, and displays the image by superimposing the virtual image on the scenery in front of the moving body.
  • the display means displays an image in which an icon indicating a display target existing around the current position of the moving object is displayed so as to indicate a direction in which the display target exists with reference to the current position of the moving object.
  • the display control means displays the character information indicating the information corresponding to the icon in characters corresponding to the icon, and displays the character information when the moving body is moving. I won't let you. This can prevent the driver from paying attention to the character information displayed during driving.
  • the display target includes points such as destinations and waypoints, buildings such as buildings, and facilities such as parks, as well as other vehicles and pedestrians.
  • the display control unit displays a direction display ring indicating a direction around the current position of the moving body, and displays the icon at a corresponding position on the direction display ring.
  • the display control means displays the icon on the direction display ring when the moving body is moving, and outside the direction display ring when the moving body is stopped. An additional ring is displayed and the icon is displayed on the additional ring.
  • the display control means displays the character information in a balloon for a corresponding icon.
  • the display control means may be configured such that when the distance from the current position of the moving body to the next guide point is within a predetermined distance, the moving body is stopped. The character information is not displayed. In this aspect, when the next guide point is near, the display of the image displayed so far is continued in order to avoid the driver's confusion due to the change of the display image.
  • the display device includes a display unit that displays a virtual image superimposed on a scene in front of the moving object, and an icon that indicates a display target that exists around the current position of the moving object.
  • Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes: Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when stopped, and character information is not displayed when the moving body is moving.
  • the display control means displays the character information when the moving body is stopped, and does not display the character information while the moving body is moving. Therefore, it is possible to prevent the driver from paying attention to the character information displayed during driving.
  • a display method executed by a head-up display mounted on a mobile object includes an icon indicating a display target point or a building existing around the current position of the mobile object, and the mobile object An image displayed so as to indicate the direction in which the display target point or the building is present with reference to the current position of the image is superimposed on the scenery in front of the moving body as a virtual image, and the display step includes When the moving body is stopped, character information indicating information corresponding to the icon in characters is displayed in correspondence with the icon, and when the moving body is moving, the character information is not displayed.
  • the display process displays character information when the moving body is stopped, and does not display character information while the moving body is moving. Therefore, it is possible to prevent the driver from paying attention to the character information displayed during driving.
  • FIG. 1 shows a configuration example of a system according to the present embodiment.
  • the system includes a navigation device 1 and a head-up display 2.
  • the system is mounted on a vehicle.
  • the navigation device 1 has a function of performing route guidance from the departure point to the destination.
  • 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.
  • PND Portable Navigation Device
  • mobile phone such as a smartphone.
  • the head-up display 2 generates an image that displays map information including the current position, route guidance information, travel speed, and other information that assists driving, and the image is converted into a virtual image from the position (eye point) of the driver's eyes. It is a device for visual recognition.
  • the head-up display 2 is supplied from the navigation device 1 with various information used for navigation processing such as vehicle position and orientation information, map information, and facility data.
  • the navigation device 1 may be held by a cradle or the like. In this case, the navigation device 1 may exchange information with the head-up display 2 via a cradle or the like.
  • FIG. 2 shows the configuration of the navigation device 1.
  • the navigation device 1 includes a self-supporting 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, an interface 39, and a display unit 40.
  • 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 of the vehicle (hereinafter also referred to as “current position”) from latitude and longitude information.
  • 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.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • 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.
  • 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 and stores various data used for navigation processing such as map data.
  • the communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and information distributed from a VICS (Vehicle Information Communication System) center or the like (hereinafter referred to as “VICS information”). Is acquired from the radio wave 39.
  • the interface 37 performs an interface operation of the communication device 38 and inputs the VICS information to the system controller 20 or the like. Further, the communication device 38 transmits information on the current position acquired from the GPS receiver 18 to the head-up display 2.
  • the display unit 40 displays various display data on a display device such as a display under the control of the system controller 20.
  • the system controller 20 reads map data from the data storage unit 36.
  • the display unit 40 displays 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 a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately.
  • a buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal or a CRT (Cathode Ray Tube) 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.
  • AMP amplifier
  • 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.
  • 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.
  • FIG. 3 is a schematic configuration diagram of the head-up display 2.
  • the head-up display 2 includes a light source unit 3 and is attached to a vehicle including a front window 25, a ceiling portion 27, a bonnet 28, a dashboard 29, and the like.
  • the light source unit 3 is installed on the ceiling portion 27 in the passenger compartment via the support members 5a and 5b, and transmits light constituting an image indicating information for assisting driving (also referred to as “driving assist information”) to the combiner 9. Exit toward. 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.
  • 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 includes a CPU, RAM, ROM, and the like (not shown), and performs general control of the head-up display 2.
  • the control unit 4 can communicate with the navigation device 1 and receives various types of information used for navigation processing from the navigation device 1.
  • FIG. 4 shows a display example of the front window 25 visually recognized by the driver.
  • the position of the combiner 9 is indicated by a broken line.
  • a guidance route to the destination is already set, and the head-up display 2 displays a route guidance indicating that the vehicle turns left at the intersection 47 where the traffic light 46 is installed. To do.
  • the control unit 4 causes the driver to visually recognize the virtual image Iv via the combiner 9 while superimposing it on the scenery visually recognized via the front window 25. Specifically, in FIG. 4, the control unit 4 displays guidance display icons 70A to 70C, arrows 71A to 71C, guidance point information display 72, guidance route 73, virtual signal 74, and direction information display in a range overlapping with the combiner 9.
  • the ring 75 and the concentric circle 76 are displayed as virtual images Iv, respectively.
  • Guidance display icons 70A to 70C display information related to the facility and the point for a predetermined facility and the point visually recognized through the front window 25. Specifically, the control unit 4 determines that the building 45A is visually recognized through the windshield 25 based on the current position, the vehicle orientation, and the map information transmitted from the navigation device 1, and the guidance display icon 70A. Displays the facility name “facility A” of the building 45A, and the arrow 70A indicates that the guidance display icon 70A is facility information of the building 45A. Similarly, the control unit 4 determines that the parking lot 45B is visually recognized through the windshield 25, and displays a guidance display icon 70B that displays a mark “P” indicating that the parking lot 45B is a parking lot. Is displayed together with an arrow 70B.
  • control unit 4 determines that an automatic speed violation control device (Orvis) is installed on the road to be turned left next, and a guidance display icon displaying a camera mark for the road to be turned left next. 70C is displayed together with an arrow 71C.
  • Orvis automatic speed violation control device
  • the guidance point information display 72 displays information on the guidance point (here, the intersection 47) where the next turn is performed. Specifically, the control unit 4 calculates the distance from the current position to the intersection 47 based on the current position information and the map information transmitted from the navigation device 1, specifies the name of the intersection 47, and determines “200 m “XX intersection” is displayed. In addition, the guide point information display 72 displays an arrow mark 720 indicating a direction to be turned at the intersection 47 (here, the left direction).
  • the guidance route 73 is a route along which the vehicle should travel (also referred to as “guidance route”), and is displayed as an overhead view that is vertically inverted. In other words, the guide route 73 is displayed in a state of being projected obliquely downward with respect to the ground surface. Therefore, in the guidance route 73, the traveling direction coincides with the lower direction of the windshield 25. In addition, the guide route 73 virtually displays a guide route in a range that is actually visible to the driver through the front window 25. A virtual signal 74 that virtually displays the traffic light 46 is shown at the left turn point of the guide route 73. As described above, when there is a traffic light in the guidance route indicated by the guidance route 73, the control unit 4 displays the virtual signal 74 superimposed on the guidance route 73.
  • the direction information display ring 75 displays the direction when observed from the same viewpoint as the guide route 73 with the center as the current position.
  • the left end position 751L of the direction information display ring 75 corresponds to the left side direction of the vehicle
  • the right end position 751R of the direction information display ring 75 corresponds to the right side direction of the vehicle
  • the lower end of the direction information display ring 75 The position 751F corresponds to the traveling direction of the vehicle
  • the upper end position 751B of the direction information display ring 75 corresponds to the backward traveling direction of the vehicle.
  • the position of “N” in the direction information display ring 75 indicates the north direction with the current position as a base point.
  • the direction information display ring 75 rotates according to the direction of the vehicle, so that it always displays an accurate direction with respect to the current position.
  • a destination icon 752 that moves on the direction information display ring 75 in accordance with the direction where the destination exists is displayed.
  • the destination icon 752 moves on the direction information display ring 75 according to changes in the position and orientation of the vehicle.
  • the destination icon 752 indicates that the destination exists in the west direction from the current position.
  • the direction information display ring 75 indicates the relative direction between the vehicle and the destination in association with displaying the direction of the destination with respect to the current position.
  • the destination icon 752 indicates that the destination exists in a diagonally left direction with respect to the traveling direction of the vehicle.
  • the concentric circle 76 indicates a distance interval from the guide point of the guide route 73 on the display of the guide route 73.
  • the concentric circles 76 are concentric circles connecting positions that are equidistant from the guide point of the guide route 73, that is, the intersection 47.
  • the concentric circle 76 includes a first concentric circle 761, a second concentric circle 762, and a third concentric circle 763 drawn at equal intervals from the guide point. For example, when the concentric circle 76 is drawn every “50 m”, the first concentric circle 761 indicates the position “50 m” from the intersection 47, the second concentric circle 762 indicates the position “100 m” from the intersection 47, and the third concentric circle 763. Indicates a position “150 m” from the intersection 47.
  • the control unit 4 performs display including a map displayed on a plane (also referred to as “planar map display”) as information display by the virtual image Iv based on a user operation. This will be described with reference to FIG.
  • the control part 4 switches these displays, when the input to predetermined input means, such as a remote controller (not shown) for operating the head-up display 2, for example, is detected.
  • FIG. 5 shows a display example of the front window 25 visually recognized by the driver when the head-up display 2 performs a planar map display.
  • the control unit 4 displays a guidance point information display 72, a planar map 81, a current position display 82, and a guidance route 83 as a virtual image Iv.
  • the planar map 81 is a map in which an area including the current position is planarly displayed at a predetermined scale.
  • the scale of the planar map 81 is changed by a predetermined input to the head-up display 2 by an input unit (not shown).
  • the current position display 82 indicates the current position of the vehicle on the planar map 81.
  • a guide route 83 indicates a guide route that the vehicle should travel in the planar map 81.
  • the display image examples shown in FIGS. 6 to 8 show only the image of the part visually recognized by the driver through the combiner 9, that is, only the image within the broken line 9 in FIGS. It is displayed as a virtual image at the upper position of.
  • FIG. 6A shows an example of a display image during route guidance.
  • the current position display 82 and the guide route 83 are shown on the plane map 81 as in FIG. 5.
  • a direction information display ring 75 that does not include character information is displayed on the planar map 81.
  • the direction information display ring 75 is also displayed as a circle instead of an ellipse, corresponding to the planar map 81.
  • points or buildings located in the corresponding direction are displayed as icons 752 to 754, but character information is not included.
  • icon 752 indicates a destination
  • icon 753 indicates a park
  • icon 754 indicates a famous building.
  • route guidance is being performed, but the next guidance point is sufficiently far away, and the next guidance point has not yet appeared on the guidance route 83.
  • FIG. 6B is an example of a display image when the vehicle is stopped.
  • the control unit 4 of the head-up display 2 acquires information indicating whether the vehicle is traveling or stopped from the navigation device 1 and displays a route guidance image illustrated in FIG. 6A when the vehicle is traveling.
  • the route guidance image illustrated in FIG. 6B is displayed. That is, when the vehicle stops while the display image of FIG. 6A is displayed while the vehicle is running, the display image of FIG. 6B is displayed.
  • Balloons 752x to 754x display character information indicating contents such as points and buildings indicated by the corresponding icons 752 to 754, respectively. Specifically, the balloon 752x displays the park name “XX Park” indicated by the icon 752, the balloon 753x displays “Destination” indicated by the icon 753, and the balloon 754x indicates the building name “YY building” indicated by the icon 754. Is displayed.
  • the character information is not mainly displayed while the vehicle is running, and the image mainly including icons is displayed. Therefore, the display image does not attract the driver's attention more than necessary.
  • an additional ring 77 is displayed to attract the driver's attention, and the point or building indicated by each icon is displayed as text information, so that it can be clearly communicated to the driver. .
  • a point such as a destination or a building such as a building is displayed as an icon, but an object displayed as an icon (referred to as a “display object”) is not limited thereto.
  • a point in addition to a destination, a transit point, a stopover, and the like can be displayed.
  • other vehicles, walking people, and the like can also be displayed. For example, by receiving the position of a friend's vehicle from a navigation device mounted on the vehicle, or receiving the position information of a friend who is walking with a portable terminal with a GPS function from the portable terminal If the position information of the vehicle or person is acquired, the icon of the vehicle or pedestrian can be displayed at the position in the display image corresponding to the position.
  • the display and non-display of the character information is switched depending on whether the vehicle is simply running or stopped.
  • switching is performed in consideration of the distance to the guide point. It is good as well. That is, as shown in FIG. 6A, the display image including the character information may be switched only when the next guide point is sufficiently far away. In other words, when the next guidance point is near, it is considered preferable to continue the display image so far without causing confusion for the driver, so even if the vehicle stops, the next guidance When the distance to the point is within a predetermined distance, the display image up to that point may be continued.
  • FIG. 7A shows an example of a display image when the next guide point is closer than a predetermined distance.
  • the next guide point is close, and the displayed guide route 83 indicates that a left turn is made at the next guide point.
  • the “predetermined distance” to the next guide point is determined in advance, and for example, the distance between the current position when the next guide point appears in the display image in the route guide image and the next guide point. can do. That is, when the route guidance image is displayed, the control unit 4 of the head-up display 2 constantly monitors the distance between the next guidance point and the current position, and the distance is a predetermined distance (for example, 300 m, 500 m, etc.). ) When it becomes shorter, the next guide point is displayed on the guide route 83, that is, the next guide point appears on the guide route 83. Therefore, when the distance from the current position to the next guidance point is within the predetermined distance, even if the vehicle stops, the display of the route guidance image so far may be continued. In other words, character information is displayed as shown in FIG. 6B only when the vehicle stops in a state where the next guide point is not displayed on the guide route 83 as shown in FIG. 6A. You can do that.
  • FIG. 8 shows an example of a display image when no guidance route is set and route guidance is not executed.
  • FIG. 8A is an example of a display image while the vehicle is traveling
  • FIG. 8B is an example of a display image when the vehicle is stopped.
  • the same display as that during the route guidance is basically performed except that the guidance route is not displayed. That is, when the route is not being guided, a map that does not include the guide route and a direction information display ring 75 that does not include the character information are displayed as shown in FIG. Since route guidance is not being performed, the icon 752 indicating the destination is not displayed.
  • an additional ring 77 is added, and character information is additionally displayed on each of the icons 753 to 754 with balloons 753x to 754x.
  • a display example of the highway mode is shown in FIG. In the highway mode, interchanges on the expressway, service area (SA), parking area (PA), and the like are displayed in characters, and the display may be continued.
  • the control unit 4 displays an image of traveling while the vehicle is traveling (step S10).
  • the running image includes a plane map 81 and a direction information display ring 75 as shown in FIGS. 6A, 7A, and 8A, and character information is displayed. Or an image in the highway mode shown in FIG.
  • control unit 4 determines whether or not the vehicle has stopped based on the vehicle speed information obtained from the navigation device 1 (step S11). When the vehicle is not stopped (step S11: No), the control unit 4 ends the process in order to continue the image display during traveling. On the other hand, when the vehicle stops (step S11: Yes), the control unit 4 determines whether or not the current display mode is the highway mode (step S12).
  • step S12: Yes When the highway mode is selected (step S12: Yes), the control unit 4 ends the process in order to continue image display in the highway mode.
  • step S13: No the control unit 4 determines whether route guidance is being performed (step S13). When route guidance is not being performed (step S13: No), the process proceeds to step S15.
  • step S13: Yes the control unit 4 determines whether or not the next guidance point is within a predetermined distance (step S14).
  • step S14 If the next guidance point is within the predetermined distance (step S14: Yes), it is preferable to continue displaying the route guidance image without depending on the characters as described above, so the control unit 4 ends the process. . On the other hand, if the next guide point is not within the processing distance (step S14: No), that is, if the next guide point is sufficiently far away, the process proceeds to step S15.
  • step S15 the control unit 4 additionally displays character information. That is, as shown in FIGS. 6B and 8B, an additional ring 77 is displayed and each icon is moved onto the additional ring 77, and a balloon is displayed for each icon to display character information. indicate. Then, the process ends.
  • an image that does not include character information is mainly displayed while the vehicle is traveling, and character information is preferably displayed when the vehicle is stopped, except preferably when the next guide point is within a predetermined distance. Is additionally displayed. This prevents text information from being displayed while the vehicle is running and prevents the driver's attention from being taken away. Also, when the vehicle is stopped, text information clearly informs the driver about the guidance route. It becomes possible.
  • the display image shown in FIG. 4 may be used as the base. That is, during traveling, an icon is displayed on the direction information display ring 75 in FIG. 4, and when the vehicle is stopped, an additional ring 77 is displayed to move the icon onto the additional ring 77, and a balloon is additionally displayed. Character information may be displayed on the screen.
  • the head-up display 2 allows the driver to visually recognize the virtual image Iv via the combiner 9, but the configuration of the head-up display 2 to which the present invention can be applied is not limited to this.
  • FIG. 10 shows a schematic configuration of a head-up display 2A according to a modification.
  • the light source unit 3 emits light constituting the display image toward the windshield 25.
  • the front window 25 projects the display image emitted from the light source unit 3 and reflects the display image to the eye point Pe to display the display image as a virtual image Iv.
  • the position of the light source unit 3 is not limited to being installed on the ceiling portion 27 but may be installed inside the dashboard 29.
  • the dashboard 29 is provided with an opening for allowing light to pass through the combiner 9 of FIG. 3 or the front window 25 of FIG.
  • the head-up display 2 generates an image indicating driving assistance information after receiving map information or the like from the navigation device 1.
  • the configuration to which the present invention can be applied is not limited to this.
  • the navigation device 1 generates an image indicating driving assistance information, transmits the image to the head-up display 2, and the head-up display. 2 may emit light constituting the received image. That is, in this case, the system controller 20 of the navigation device 1 performs part or all of the processing performed by the control unit 4 of the head-up display 2. Also by this, the head-up display 2 can make a driver
  • the navigation device 1 and the head-up display 2 are examples of the “head-up display” or “display device” in the present invention.
  • the head-up display 2 may display driving assistance information without communicating with the navigation device 1.
  • the light source unit 3 of the head-up display 2 includes a self-supporting positioning device such as a GPS receiver and a distance sensor, and measures the position and direction of the vehicle.
  • the light source unit 3 stores map information including facility information in a memory in advance. Then, the light source unit 3 refers to map information and the like based on the measured vehicle position and the like, and emits light constituting an image indicating driving assistance information.
  • a destination icon 752 indicating a destination, icons 753 and 754 indicating landmarks, and the like are displayed on the direction information display ring 75.
  • the head-up display 2 displays direction information with icons indicating the positions of various objects such as the set stop-off location and / or the position of a friend who has a portable terminal equipped with a GPS receiver. It may be displayed on the ring 75.
  • the navigation device 1 when the navigation device 1 has a call function and a call is received from a friend's portable terminal equipped with GPS, the navigation device 1 is acquired from the above-described portable terminal by the GPS receiver.
  • the received position information is received by communication, and the position information and the position and direction information of the own vehicle are transferred to the control unit 4.
  • the light source unit 3 Based on the received information, displays an icon indicating the position of the friend of the mobile terminal that received the incoming call on the direction information display ring 75.
  • the head-up display 2 In addition to the display by the virtual image Iv shown in FIG. 4, the head-up display 2 further adds an arrow indicating the traveling direction to a position corresponding to the guide point of the guide route 73, or corresponds to each of the concentric circles 76. An indication of the distance from the guide point indicated by the concentric circle 76 may be added.
  • FIGS. 11A to 11C show transition of information display by the virtual image Iv in a time series visually recognized through the combiner 9 in the modification.
  • FIG. 11A shows the information display by the virtual image Iv when the vehicle is in the vicinity of 100 m to 75 m from the guidance point
  • FIG. 11B shows the vehicle in the vicinity of 75 m to 50 m from the guidance point
  • FIG. 11C shows the information display by the virtual image Iv when the vehicle is in the vicinity of 50 m to 25 m from the guide point.
  • the control unit 4 has an arrow 77 indicating a traveling direction (here, the left direction) at a position corresponding to the guide point of the guide route 73 and a concentric circle.
  • a distance display 78 displaying the distance from the guide point indicated by 76 is displayed as a virtual image Iv.
  • the first concentric circle 761 indicates a position 25 m from the guidance point
  • the second concentric circle 762 indicates a position 50 m from the guidance point
  • the third concentric circle 763 indicates a position 75 m from the guidance point.
  • the control part 4 changes the magnitude
  • the control unit 4 sequentially displays the distance display 78 for the concentric circle 76 indicating the position closest to the current position. Specifically, as shown in FIG. 11A, when the vehicle is traveling from 75 m to 100 m from the guide point, the third concentric circle 763 corresponds to the outermost concentric circle 76. Therefore, the control unit 4 attaches a distance display 78 to the third concentric circle 763 to the effect that the third concentric circle 763 is a 75 m point from the guide point. Further, as shown in FIG. 11B, when the vehicle is traveling from 50 m to 100 m from the guide point, the third concentric circle 763 indicating a point farther from the guide point than the current position is not displayed.
  • the second concentric circle 762 among the concentric circles 76 is the outermost concentric circle 76. Therefore, in this case, the control unit 4 attaches a distance display 78 to the second concentric circle 762 to the effect that the second concentric circle 762 is 50 m from the guide point.
  • the third concentric circle 763 and the second concentric circle 762 indicating points farther from the guide point than the current position are Of the displayed concentric circles 76, the first concentric circle 761 is the outermost concentric circle 76.
  • the control unit 4 attaches a distance display 78 to the first concentric circle 761 to the effect that the first concentric circle 761 is 25 m from the guide point.
  • the control part 4 makes a driver
  • the present invention can be suitably applied to a head-up display that allows a driver to visually recognize route guidance and vehicle information.

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Abstract

A head-up display is mounted in a mobile object such as a vehicle, generates a virtual image, for example, in front of a windshield, and displays an image by superimposing the virtual image on a landscape ahead of the mobile object. On a display means, an image in which an icon indicating a display object present around the current position of the mobile object is displayed so as to indicate a direction in which the display object is present with the current position of the mobile object as a reference is displayed. The display control means causes character information that indicates information corresponding to the icon by characters to be displayed so as to correspond to the icon when the mobile object is stopped, and causes the character information not to be displayed when the mobile object is being moved. Consequently, a driver can be prevented from being distracted by the character information displayed while driving.

Description

ヘッドアップディスプレイ、表示装置及び表示方法Head-up display, display device, and display method
 本発明は、情報を表示する技術に関する。 The present invention relates to a technique for displaying information.
 従来から、車両の運転に関する情報の表示画像を運転者の目の位置から虚像として視認させる技術が存在する。例えば、特許文献1には、フロントガラスを利用して、運転者の視線高さよりも上方に、鳥瞰図(俯瞰図)又は鳥瞰図を上下に反転させた地図画像を表示するヘッドアップディスプレイが開示されている。また、特許文献2には、現在位置を基点として表示スケールが同心円となされた探索画面を表示し、目的地などの探索対象物の現在位置を基点とした表示位置を算出し、その表示位置に、探索対象物を示す探索マークを表示する技術が開示されている。さらに、特許文献3には、GPS受信機を備えた携帯端末機を電話回線により呼び出し、その携帯端末機に着信があった場合に、当該携帯端末機の存在位置を地図データと共に画面上に表示させる技術が開示されている。また、特許文献4には、車両前方の風景画像にナビゲーション情報を重畳表示させる技術が開示されている。 Conventionally, there is a technique for visually displaying a display image of information related to driving of a vehicle as a virtual image from the position of the driver's eyes. For example, Patent Literature 1 discloses a head-up display that uses a windshield to display a bird's-eye view (overhead view) or a map image obtained by inverting the bird's-eye view above and below the driver's line-of-sight height. Yes. Patent Document 2 displays a search screen in which the display scale is a concentric circle with the current position as a base point, calculates a display position based on the current position of a search target such as a destination, and sets the display position as the display position. A technique for displaying a search mark indicating a search object is disclosed. Furthermore, in Patent Document 3, when a mobile terminal equipped with a GPS receiver is called through a telephone line and the mobile terminal receives an incoming call, the location of the mobile terminal is displayed on the screen together with map data. Techniques for making them disclosed are disclosed. Patent Document 4 discloses a technique for displaying navigation information superimposed on a landscape image in front of a vehicle.
特開平09-229707号公報JP 09-229707 A 特開2009-111856号公報JP 2009-111856 A 特開平09-194878号公報Japanese Patent Laid-Open No. 09-194878 特開2008-202987号公報JP 2008-202987 A
 車両のダッシュボードに取り付けられた液晶表示装置を使用する通常のナビゲーション装置では、経路案内情報の表示画像中に、案内地点の名称、案内地点までの距離などが文字で示される。しかし、ヘッドアップディスプレイの場合、走行中に案内情報として文字情報を表示すると、運転者の注意力が文字を読むことに奪われる可能性がある。 In a normal navigation device using a liquid crystal display device attached to a dashboard of a vehicle, the name of the guidance point, the distance to the guidance point, etc. are indicated by characters in the display image of the route guidance information. However, in the case of a head-up display, if character information is displayed as guidance information during traveling, the driver's attention may be lost to reading the character.
 本発明は、上記のような課題を解決するためになされたものであり、走行中と停車時とでそれぞれ適切な案内情報を表示することが可能なヘッドアップディスプレイ、表示装置、及び制御方法を提供することを主な目的とする。 The present invention has been made to solve the above-described problems, and provides a head-up display, a display device, and a control method capable of displaying appropriate guidance information during traveling and when stopped. The main purpose is to provide.
 請求項1に記載の発明は、ヘッドアップディスプレイであって、移動体の前方の景色に虚像を重畳させて表示する表示手段と、前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、前記表示制御手段は、前記移動体が停止しているときには前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とする。 The invention according to claim 1 is a head-up display, a display unit that displays a virtual image superimposed on a scene in front of the moving body, and an icon that indicates a display target existing around the current position of the moving body Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes the mobile object Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when is stopped, and the character information is not displayed when the moving body is moving.
 請求項6に記載の発明は、表示装置であって、移動体の前方の景色に虚像を重畳させて表示する表示手段と、前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、前記表示制御手段は、前記移動体が停止しているときには前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とする。 The invention according to claim 6 is a display device, comprising: a display unit that displays a virtual image superimposed on a scene in front of the moving body; and an icon that indicates a display target that exists around the current position of the moving body. Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes: Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when stopped, and the character information is not displayed when the moving body is moving.
 請求項7に記載の発明は、移動体に搭載されたヘッドアップディスプレイにより実行される表示方法であって、前記移動体の現在位置の周辺に存在する表示対象地点又は建物を示すアイコンを、前記移動体の現在位置を基準として当該表示対象地点又は建物が存在する方角を示すように表示した画像を、虚像として前記移動体の前方の景色に重畳させて表示する表示工程を有し、前記表示工程は、前記移動体が停止しているときには、前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とする。 The invention according to claim 7 is a display method executed by a head-up display mounted on a moving body, wherein an icon indicating a display target point or a building existing around the current position of the moving body is A display step of displaying an image displayed so as to indicate a direction in which the display target point or the building exists on the basis of the current position of the moving object as a virtual image superimposed on a scenery in front of the moving object, In the process, when the moving body is stopped, character information indicating characters corresponding to the icon is displayed in correspondence with the icon, and when the moving body is moving, the character information is displayed. It is characterized by not letting it.
実施例に係るシステムの構成例である。It is an example of composition of a system concerning an example. ナビゲーション装置の概略構成である。It is a schematic structure of a navigation apparatus. ヘッドアップディスプレイの概略構成である。It is a schematic structure of a head-up display. 運転者が視認するフロントウィンドウの表示を示す。The display of the front window visually recognized by the driver is shown. ヘッドアップディスプレイによる他の表示例を示す。The other example of a display by a head up display is shown. 車両の走行中及び停止時における表示例を示す。The example of a display during the driving | running | working of a vehicle and a stop is shown. ルート案内中及びハイウェイモードにおける表示例を示す。The example of a display in route guidance and highway mode is shown. 車両の走行中及び停止時における表示例を示す。The example of a display during the driving | running | working of a vehicle and a stop is shown. 車両の停止時の表示処理を示すフローチャートである。It is a flowchart which shows the display process at the time of a stop of a vehicle. ヘッドアップディスプレイの他の構成例である。It is another example of composition of a head up display. 変形例に係る情報表示例を示す。The example of information display concerning a modification is shown.
 本発明の1つの好適な実施形態では、ヘッドアップディスプレイは、移動体の前方の景色に虚像を重畳させて表示する表示手段と、前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、前記表示制御手段は、前記移動体が停止しているときには前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させない。 In one preferred embodiment of the present invention, the head-up display includes display means for displaying a virtual image superimposed on a scene in front of the moving object, and an icon indicating a display object existing around the current position of the moving object. Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes the mobile object Is stopped, character information indicating characters corresponding to the icon is displayed as characters, and when the moving body is moving, the character information is not displayed.
 上記のヘッドアップディスプレイは、車両などの移動体に搭載され、例えばフロントガラス前方に虚像を生成し、移動体の前方の景色に虚像を重畳させて画像の表示を行う。表示手段には、移動体の現在位置の周辺に存在する表示対象を示すアイコンを、移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像が表示される。ここで、表示制御手段は、移動体が停止しているときには、アイコンに対応させてアイコンに対応する情報を文字で示した文字情報を表示させ、移動体が移動しているときには文字情報を表示させない。これにより、運転中に表示される文字情報に運転者が気をとられることが防止できる。なお、表示対象は、目的地や経由地などの地点、ビルなどの建物、公園などの施設に加え、他の車両、歩行者なども含む。 The head-up display is mounted on a moving body such as a vehicle, and generates a virtual image in front of the windshield, for example, and displays the image by superimposing the virtual image on the scenery in front of the moving body. The display means displays an image in which an icon indicating a display target existing around the current position of the moving object is displayed so as to indicate a direction in which the display target exists with reference to the current position of the moving object. Here, when the moving body is stopped, the display control means displays the character information indicating the information corresponding to the icon in characters corresponding to the icon, and displays the character information when the moving body is moving. I won't let you. This can prevent the driver from paying attention to the character information displayed during driving. The display target includes points such as destinations and waypoints, buildings such as buildings, and facilities such as parks, as well as other vehicles and pedestrians.
 上記のヘッドアップディスプレイの一態様では、前記表示制御手段は、前記移動体の現在位置を中心として方角を示す方角表示リングを表示させ、当該方角表示リング上の対応する位置に前記アイコンを表示させる。好適な例では、前記表示制御手段は、前記移動体が移動しているときは前記方角表示リング上に前記アイコンを表示させ、前記移動体が停止しているときは前記方角表示リングの外側に追加リングを表示させるとともに、当該追加リング上に前記アイコンを表示させる。さらに好適な例では、前記表示制御手段は、前記文字情報を、対応するアイコンについての吹き出し中に表示させる。 In one aspect of the head-up display, the display control unit displays a direction display ring indicating a direction around the current position of the moving body, and displays the icon at a corresponding position on the direction display ring. . In a preferred example, the display control means displays the icon on the direction display ring when the moving body is moving, and outside the direction display ring when the moving body is stopped. An additional ring is displayed and the icon is displayed on the additional ring. In a more preferred example, the display control means displays the character information in a balloon for a corresponding icon.
 上記のヘッドアップディスプレイの他の一態様では、前記表示制御手段は、前記移動体の現在位置から、次の案内地点までの距離が所定距離以内であるときには、前記移動体が停止していても前記文字情報を表示させない。この態様では、次の案内地点が近い場合には、表示画像が変わることによる運転者の混乱を避けるべく、それまで表示されていた像の表示を継続する。 In another aspect of the head-up display, the display control means may be configured such that when the distance from the current position of the moving body to the next guide point is within a predetermined distance, the moving body is stopped. The character information is not displayed. In this aspect, when the next guide point is near, the display of the image displayed so far is continued in order to avoid the driver's confusion due to the change of the display image.
 本発明の他の好適な実施形態では、表示装置は、移動体の前方の景色に虚像を重畳させて表示する表示手段と、前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、前記表示制御手段は、前記移動体が停止しているときには前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させない。 In another preferred embodiment of the present invention, the display device includes a display unit that displays a virtual image superimposed on a scene in front of the moving object, and an icon that indicates a display target that exists around the current position of the moving object. Display control means for causing the display means to display an image displayed so as to indicate the direction in which the display object is present with reference to the current position of the mobile object, and the display control means includes: Character information indicating characters corresponding to the icon is displayed in correspondence with the icon when stopped, and character information is not displayed when the moving body is moving.
 上記の表示装置においても、表示制御手段は、移動体の停止時に文字情報を表示し、移動体の移動中には文字情報を表示しない。よって、運転中に表示される文字情報に運転者が気をとられることが防止できる。 Also in the above display device, the display control means displays the character information when the moving body is stopped, and does not display the character information while the moving body is moving. Therefore, it is possible to prevent the driver from paying attention to the character information displayed during driving.
 本発明の他の実施形態では、移動体に搭載されたヘッドアップディスプレイにより実行される表示方法は、前記移動体の現在位置の周辺に存在する表示対象地点又は建物を示すアイコンを、前記移動体の現在位置を基準として当該表示対象地点又は建物が存在する方角を示すように表示した画像を、虚像として前記移動体の前方の景色に重畳させて表示する表示工程を有し、前記表示工程は、前記移動体が停止しているときには、前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させない。 In another embodiment of the present invention, a display method executed by a head-up display mounted on a mobile object includes an icon indicating a display target point or a building existing around the current position of the mobile object, and the mobile object An image displayed so as to indicate the direction in which the display target point or the building is present with reference to the current position of the image is superimposed on the scenery in front of the moving body as a virtual image, and the display step includes When the moving body is stopped, character information indicating information corresponding to the icon in characters is displayed in correspondence with the icon, and when the moving body is moving, the character information is not displayed.
 上記の表示方法においても、表示工程は、移動体の停止時に文字情報を表示し、移動体の移動中には文字情報を表示しない。よって、運転中に表示される文字情報に運転者が気をとられることが防止できる。 Also in the above display method, the display process displays character information when the moving body is stopped, and does not display character information while the moving body is moving. Therefore, it is possible to prevent the driver from paying attention to the character information displayed during driving.
 以下、図面を参照して本発明の好適な実施例について説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
 [システム構成]
 図1は、本実施例に係るシステムの構成例を示す。図1に示すように、当該システムは、ナビゲーション装置1と、ヘッドアップディスプレイ2とを備える。また、当該システムは、車両に搭載される。
[System configuration]
FIG. 1 shows a configuration example of a system according to the present embodiment. As shown in FIG. 1, the system includes a navigation device 1 and a head-up display 2. The system is mounted on a vehicle.
 ナビゲーション装置1は、出発地から目的地までの経路案内を行う機能などを有する。ナビゲーション装置1は、例えば、車両に設置される据え置き型のナビゲーション装置、PND(Portable Navigation Device)、又はスマートフォンなどの携帯電話とすることができる。 The navigation device 1 has a function of performing route guidance from the departure point to the destination. 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.
 ヘッドアップディスプレイ2は、現在位置を含む地図情報や経路案内情報、走行速度、その他運転を補助する情報を表示する画像を生成し、当該画像を運転者の目の位置(アイポイント)から虚像として視認させる装置である。ヘッドアップディスプレイ2には、車両の位置及び向きの情報、地図情報、及び施設データなどのナビゲーション処理に用いられる各種情報がナビゲーション装置1から供給される。 The head-up display 2 generates an image that displays map information including the current position, route guidance information, travel speed, and other information that assists driving, and the image is converted into a virtual image from the position (eye point) of the driver's eyes. It is a device for visual recognition. The head-up display 2 is supplied from the navigation device 1 with various information used for navigation processing such as vehicle position and orientation information, map information, and facility data.
 なお、ナビゲーション装置1がスマートフォンなどの携帯電話である場合、ナビゲーション装置1は、クレードルなどによって保持されても良い。この場合、ナビゲーション装置1は、クレードルなどを介して、ヘッドアップディスプレイ2と情報の授受を行うこととしても良い。 If the navigation device 1 is a mobile phone such as a smartphone, the navigation device 1 may be held by a cradle or the like. In this case, the navigation device 1 may exchange information with the head-up display 2 via a cradle or the like.
 [ナビゲーション装置の構成]
 図2は、ナビゲーション装置1の構成を示す。図2に示すように、ナビゲーション装置1は、自立測位装置10、GPS受信機18、システムコントローラ20、ディスクドライブ31、データ記憶ユニット36、通信用インタフェース37、通信装置38、インタフェース39、表示ユニット40、音声出力ユニット50、及び入力装置60を備える。
[Configuration of navigation device]
FIG. 2 shows the configuration of the navigation device 1. As shown in FIG. 2, the navigation device 1 includes a self-supporting 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, an interface 39, and a display unit 40. A voice output unit 50 and an input device 60.
 自立測位装置10は、加速度センサ11、角速度センサ12及び距離センサ13を備える。加速度センサ11は、例えば圧電素子からなり、車両の加速度を検出し、加速度データを出力する。角速度センサ12は、例えば振動ジャイロからなり、車両の方向変換時における車両の角速度を検出し、角速度データ及び相対方位データを出力する。距離センサ13は、車両の車輪の回転に伴って発生されているパルス信号からなる車速パルスを計測する。 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.
 GPS受信機18は、複数のGPS衛星から、測位用データを含む下り回線データを搬送する電波19を受信する。測位用データは、緯度及び経度情報等から車両の絶対的な位置(以後、「現在位置」とも呼ぶ。)を検出するために用いられる。 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 of the vehicle (hereinafter also referred to as “current position”) from latitude and longitude information.
 システムコントローラ20は、インタフェース21、CPU(Central Processing Unit)22、ROM(Read Only Memory)23及びRAM(Random Access Memory)24を含んでおり、ナビゲーション装置1全体の制御を行う。 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.
 インタフェース21は、加速度センサ11、角速度センサ12及び距離センサ13並びにGPS受信機18とのインタフェース動作を行う。そして、これらから、車速パルス、加速度データ、相対方位データ、角速度データ、GPS測位データ、絶対方位データ等をシステムコントローラ20に入力する。CPU22は、システムコントローラ20全体を制御する。ROM23は、システムコントローラ20を制御する制御プログラム等が格納された図示しない不揮発性メモリ等を有する。RAM24は、入力装置60を介して使用者により予め設定された経路データ等の各種データを読み出し可能に格納したり、CPU22に対してワーキングエリアを提供したりする。 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. 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.
 システムコントローラ20、CD-ROMドライブ又はDVD-ROMドライブなどのディスクドライブ31、データ記憶ユニット36、通信用インタフェース37、表示ユニット40、音声出力ユニット50及び入力装置60は、バスライン30を介して相互に接続されている。 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.
 ディスクドライブ31は、システムコントローラ20の制御の下、CD又はDVDといったディスク33から、音楽データ、映像データなどのコンテンツデータを読み出し、出力する。なお、ディスクドライブ31は、CD-ROMドライブ又はDVD-ROMドライブのうち、いずれか一方としてもよいし、CD及びDVDコンパチブルのドライブとしてもよい。データ記憶ユニット36は、例えば、HDDなどにより構成され、地図データなどのナビゲーション処理に用いられる各種データを記憶するユニットである。通信装置38は、例えば、FMチューナやビーコンレシーバ、携帯電話や専用の通信カードなどにより構成され、VICS(Vehicle Information Communication System)センタなどから配信される情報(以下、「VICS情報」と呼ぶ。)を電波39より取得する。そしてインタフェース37は、通信装置38のインタフェース動作を行い、VICS情報をシステムコントローラ20等に入力する。また、通信装置38は、GPS受信機18から取得した現在位置の情報などをヘッドアップディスプレイ2に送信する。 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 and stores various data used for navigation processing such as map data. The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and information distributed from a VICS (Vehicle Information Communication System) center or the like (hereinafter referred to as “VICS information”). Is acquired from the radio wave 39. The interface 37 performs an interface operation of the communication device 38 and inputs the VICS information to the system controller 20 or the like. Further, the communication device 38 transmits information on the current position acquired from the GPS receiver 18 to the head-up display 2.
 表示ユニット40は、システムコントローラ20の制御の下、各種表示データをディスプレイなどの表示装置に表示する。具体的には、システムコントローラ20は、データ記憶ユニット36から地図データを読み出す。表示ユニット40は、システムコントローラ20によってデータ記憶ユニット36から読み出された地図データなどを表示画面上に表示する。表示ユニット40は、バスライン30を介してCPU22から送られる制御データに基づいて表示ユニット40全体の制御を行うグラフィックコントローラ41と、VRAM(Video RAM)等のメモリからなり即時表示可能な画像情報を一時的に記憶するバッファメモリ42と、グラフィックコントローラ41から出力される画像データに基づいて、液晶、CRT(Cathode Ray Tube)等のディスプレイ44を表示制御する表示制御部43と、ディスプレイ44とを備える。ディスプレイ44は、画像表示部として機能し、例えば対角5~10インチ程度の液晶表示装置等からなり、車内のフロントパネル付近に装着される。 The display unit 40 displays various display data on a display device 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 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 a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal or a CRT (Cathode Ray Tube) 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.
 音声出力ユニット50は、システムコントローラ20の制御の下、CD-ROMドライブ31又はDVD-ROM32、若しくはRAM24等からバスライン30を介して送られる音声デジタルデータのD/A(Digital to Analog)変換を行うD/Aコンバータ51と、D/Aコンバータ51から出力される音声アナログ信号を増幅する増幅器(AMP)52と、増幅された音声アナログ信号を音声に変換して車内に出力するスピーカ53とを備えて構成されている。 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.
 入力装置60は、各種コマンドやデータを入力するための、キー、スイッチ、ボタン、リモコン、音声入力装置等から構成されている。入力装置60は、車内に搭載された当該車載用電子システムの本体のフロントパネルやディスプレイ44の周囲に配置される。また、ディスプレイ44がタッチパネル方式の場合、ディスプレイ44の表示画面上に設けられたタッチパネルも入力装置60として機能する。 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.
 [ヘッドアップディスプレイの構成]
 図3は、ヘッドアップディスプレイ2の概略構成図である。図3に示すように、本実施例に係るヘッドアップディスプレイ2は、光源ユニット3を備え、フロントウィンドウ25、天井部27、ボンネット28、及びダッシュボード29などを備える車両に取り付けられる。
[Configuration of head-up display]
FIG. 3 is a schematic configuration diagram of the head-up display 2. As shown in FIG. 3, the head-up display 2 according to this embodiment includes a light source unit 3 and is attached to a vehicle including a front window 25, a ceiling portion 27, a bonnet 28, a dashboard 29, and the like.
 光源ユニット3は、支持部材5a、5bを介して車室内の天井部27に設置され、運転を補助する情報(「運転補助情報」とも呼ぶ。)を示す画像を構成する光を、コンバイナ9に向けて出射する。具体的には、光源ユニット3は、制御部4の制御に基づき、光源ユニット3内に表示像の元画像(実像)を生成し、その画像を構成する光をコンバイナ9へ出射することで、コンバイナ9を介して運転者に虚像「Iv」を視認させる。 The light source unit 3 is installed on the ceiling portion 27 in the passenger compartment via the support members 5a and 5b, and transmits light constituting an image indicating information for assisting driving (also referred to as “driving assist information”) to the combiner 9. Exit toward. 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.
 コンバイナ9は、光源ユニット3から出射される表示像が投影されると共に、表示像を運転者のアイポイントPeへ反射することで当該表示像を虚像Ivとして表示させる。そして、コンバイナ9は、天井部27に設置された支持軸部8を有し、支持軸部8を支軸として回動する。支持軸部8は、例えば、フロントウィンドウ25の上端近傍の天井部27、言い換えると運転者用の図示しないサンバイザが設置される位置の近傍に設置される。なお、支持軸部8は、上述のサンバイザに代えて設置されてもよい。 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.
 制御部4は、図示しないCPUやRAM、ROMなどを有し、ヘッドアップディスプレイ2の全般的な制御を行う。また、制御部4は、ナビゲーション装置1と通信が可能であり、ナビゲーション処理に用いられる各種情報をナビゲーション装置1から受信する。 The control unit 4 includes a CPU, RAM, ROM, and the like (not shown), and performs general control of the head-up display 2. The control unit 4 can communicate with the navigation device 1 and receives various types of information used for navigation processing from the navigation device 1.
 [基本表示]
 次に、ヘッドアップディスプレイ2による典型的な表示例について図4を参照して説明する。図4は、運転者が視認するフロントウィンドウ25の表示例を示す。図4では、コンバイナ9の位置を破線により示している。また、前提として、図4では、目的地までの案内ルートが既に設定されており、ヘッドアップディスプレイ2は、信号機46が設置されている交差点47で左折する旨のルート案内の表示を行うものとする。
[Basic display]
Next, a typical display example by the head-up display 2 will be described with reference to FIG. FIG. 4 shows a display example of the front window 25 visually recognized by the driver. In FIG. 4, the position of the combiner 9 is indicated by a broken line. Also, as a premise, in FIG. 4, a guidance route to the destination is already set, and the head-up display 2 displays a route guidance indicating that the vehicle turns left at the intersection 47 where the traffic light 46 is installed. To do.
 図4に示すように、制御部4は、フロントウィンドウ25を介して視認される風景に重畳させて、コンバイナ9を介して虚像Ivを運転者に視認させる。具体的には、図4では、制御部4は、コンバイナ9と重なる範囲に、案内表示アイコン70A~70C、矢印71A~71C、案内地点情報表示72、案内ルート73、仮想信号74、方角情報表示リング75、及び同心円76を虚像Ivとしてそれぞれ表示させている。 As shown in FIG. 4, the control unit 4 causes the driver to visually recognize the virtual image Iv via the combiner 9 while superimposing it on the scenery visually recognized via the front window 25. Specifically, in FIG. 4, the control unit 4 displays guidance display icons 70A to 70C, arrows 71A to 71C, guidance point information display 72, guidance route 73, virtual signal 74, and direction information display in a range overlapping with the combiner 9. The ring 75 and the concentric circle 76 are displayed as virtual images Iv, respectively.
 案内表示アイコン70A~70Cは、フロントウィンドウ25を介して視認される所定の施設及び地点を対象に、当該施設及び地点に関する情報を表示する。具体的には、制御部4は、ナビゲーション装置1から送信される現在位置、車両の向き、及び地図情報に基づき、建物45Aがフロントガラス25を介して視認されると判断し、案内表示アイコン70Aにより建物45Aの施設名称「施設A」を表示すると共に、矢印70Aにより案内表示アイコン70Aが建物45Aの施設情報であることを示す。同様に、制御部4は、駐車場45Bがフロントガラス25を介して視認されると判断し、駐車場45Bに対して、駐車場であることを示すマーク「P」を表示した案内表示アイコン70Bを矢印70Bと共に表示する。また、さらに、制御部4は、次に左折すべき道路に自動速度違反取締装置(オービス)が設置されていると判断し、次に左折する道路に対し、カメラのマークを表示した案内表示アイコン70Cを矢印71Cと共に表示する。 Guidance display icons 70A to 70C display information related to the facility and the point for a predetermined facility and the point visually recognized through the front window 25. Specifically, the control unit 4 determines that the building 45A is visually recognized through the windshield 25 based on the current position, the vehicle orientation, and the map information transmitted from the navigation device 1, and the guidance display icon 70A. Displays the facility name “facility A” of the building 45A, and the arrow 70A indicates that the guidance display icon 70A is facility information of the building 45A. Similarly, the control unit 4 determines that the parking lot 45B is visually recognized through the windshield 25, and displays a guidance display icon 70B that displays a mark “P” indicating that the parking lot 45B is a parking lot. Is displayed together with an arrow 70B. Further, the control unit 4 determines that an automatic speed violation control device (Orvis) is installed on the road to be turned left next, and a guidance display icon displaying a camera mark for the road to be turned left next. 70C is displayed together with an arrow 71C.
 案内地点情報表示72は、次に右左折を行う案内地点(ここでは交差点47)に関する情報を表示する。具体的には、制御部4は、ナビゲーション装置1から送信される現在位置の情報及び地図情報に基づき、現在位置から交差点47までの距離を算出すると共に、交差点47の名称を特定し、「200m ○○交差点」と表示する。また、案内地点情報表示72は、交差点47で曲がるべき方向(ここでは左方向)を示す矢印マーク720を表示する。 The guidance point information display 72 displays information on the guidance point (here, the intersection 47) where the next turn is performed. Specifically, the control unit 4 calculates the distance from the current position to the intersection 47 based on the current position information and the map information transmitted from the navigation device 1, specifies the name of the intersection 47, and determines “200 m “XX intersection” is displayed. In addition, the guide point information display 72 displays an arrow mark 720 indicating a direction to be turned at the intersection 47 (here, the left direction).
 案内ルート73は、車両が進むべきルート(「案内ルート」とも呼ぶ。)であって、上下反転させた俯瞰図により表示されている。言い換えると、案内ルート73は、地表に対して斜め下方向から投影された状態で表示される。従って、案内ルート73では、進行方向がフロントガラス25の下方向と一致する。また、案内ルート73は、実際に運転者がフロントウィンドウ25を介して視認可能な範囲にある案内ルートを仮想的に表示する。そして、案内ルート73の左折地点には、信号機46を仮想的に表示した仮想信号74が示されている。このように、制御部4は、案内ルート73が示す案内ルート中に信号機が存在する場合には、当該案内ルート73に重畳させて仮想信号74を表示する。 The guidance route 73 is a route along which the vehicle should travel (also referred to as “guidance route”), and is displayed as an overhead view that is vertically inverted. In other words, the guide route 73 is displayed in a state of being projected obliquely downward with respect to the ground surface. Therefore, in the guidance route 73, the traveling direction coincides with the lower direction of the windshield 25. In addition, the guide route 73 virtually displays a guide route in a range that is actually visible to the driver through the front window 25. A virtual signal 74 that virtually displays the traffic light 46 is shown at the left turn point of the guide route 73. As described above, when there is a traffic light in the guidance route indicated by the guidance route 73, the control unit 4 displays the virtual signal 74 superimposed on the guidance route 73.
 方角情報表示リング75は、中心を現在位置として、案内ルート73と同一の視点から観察した場合の方角を表示する。ここで、方角情報表示リング75の左端位置751Lは、車両の左側面方向に相当し、方角情報表示リング75の右端位置751Rは、車両の右側面方向に相当し、方角情報表示リング75の下端位置751Fは、車両の進行方向に相当し、方角情報表示リング75の上端位置751Bは、車両の後進方向に相当する。また、方角情報表示リング75中の「N」の位置は、現在位置を基点とした北の方角を示す。そして、方角情報表示リング75は、車両の向きに応じて回転することで、現在位置に対して常に正確な方角を表示する。 The direction information display ring 75 displays the direction when observed from the same viewpoint as the guide route 73 with the center as the current position. Here, the left end position 751L of the direction information display ring 75 corresponds to the left side direction of the vehicle, the right end position 751R of the direction information display ring 75 corresponds to the right side direction of the vehicle, and the lower end of the direction information display ring 75. The position 751F corresponds to the traveling direction of the vehicle, and the upper end position 751B of the direction information display ring 75 corresponds to the backward traveling direction of the vehicle. Further, the position of “N” in the direction information display ring 75 indicates the north direction with the current position as a base point. The direction information display ring 75 rotates according to the direction of the vehicle, so that it always displays an accurate direction with respect to the current position.
 また、方角情報表示リング75上には、目的地が存在する方角に応じて方角情報表示リング75上を移動する目的地アイコン752が表示されている。目的地アイコン752は、車両の位置及び向きの変化に応じて方角情報表示リング75上を移動する。図4では、目的地アイコン752は、現在位置からおよそ西の方角に目的地が存在することを示す。さらに、方角情報表示リング75は、現在位置に対する目的地の方角を表示するのに付随して、車両と目的地との相対的な方向を指し示す。具体的には、図4では、目的地アイコン752は、車両の進行方向に対して斜め左方向に目的地が存在することを示す。 Further, on the direction information display ring 75, a destination icon 752 that moves on the direction information display ring 75 in accordance with the direction where the destination exists is displayed. The destination icon 752 moves on the direction information display ring 75 according to changes in the position and orientation of the vehicle. In FIG. 4, the destination icon 752 indicates that the destination exists in the west direction from the current position. Furthermore, the direction information display ring 75 indicates the relative direction between the vehicle and the destination in association with displaying the direction of the destination with respect to the current position. Specifically, in FIG. 4, the destination icon 752 indicates that the destination exists in a diagonally left direction with respect to the traveling direction of the vehicle.
 同心円76は、案内ルート73の表示上における案内ルート73の案内地点からの距離間隔を示す。言い換えると、同心円76は、案内ルート73の案内地点、即ち交差点47から等距離にある位置を結んだ同心円である。同心円76は、案内地点から等間隔に描かれた第1同心円761、第2同心円762、及び第3同心円763を有する。例えば、同心円76が「50m」ごとに描かれる場合、第1同心円761は交差点47から「50m」の位置を示し、第2同心円762は交差点47から「100m」の位置を示し、第3同心円763は交差点47から「150m」の位置を示す。 The concentric circle 76 indicates a distance interval from the guide point of the guide route 73 on the display of the guide route 73. In other words, the concentric circles 76 are concentric circles connecting positions that are equidistant from the guide point of the guide route 73, that is, the intersection 47. The concentric circle 76 includes a first concentric circle 761, a second concentric circle 762, and a third concentric circle 763 drawn at equal intervals from the guide point. For example, when the concentric circle 76 is drawn every “50 m”, the first concentric circle 761 indicates the position “50 m” from the intersection 47, the second concentric circle 762 indicates the position “100 m” from the intersection 47, and the third concentric circle 763. Indicates a position “150 m” from the intersection 47.
 [平面地図表示]
 制御部4は、虚像Ivによる情報表示として、図4に示す表示の他に、ユーザの操作に基づき、平面に表示された地図を含む表示(「平面地図表示」とも呼ぶ。)を行う。これについて、図5を参照して説明する。なお、制御部4は、例えばヘッドアップディスプレイ2を操作するためのリモートコントローラ(不図示)などの所定の入力手段への入力を検知した場合に、これらの表示の切り替えを行う。
[Plane map display]
In addition to the display shown in FIG. 4, the control unit 4 performs display including a map displayed on a plane (also referred to as “planar map display”) as information display by the virtual image Iv based on a user operation. This will be described with reference to FIG. In addition, the control part 4 switches these displays, when the input to predetermined input means, such as a remote controller (not shown) for operating the head-up display 2, for example, is detected.
 図5は、ヘッドアップディスプレイ2が平面地図表示を行った場合に運転者が視認するフロントウィンドウ25の表示例を示す。図5では、制御部4は、虚像Ivとして、案内地点情報表示72と、平面地図81と、現在位置表示82と、案内ルート83とを表示する。 FIG. 5 shows a display example of the front window 25 visually recognized by the driver when the head-up display 2 performs a planar map display. In FIG. 5, the control unit 4 displays a guidance point information display 72, a planar map 81, a current position display 82, and a guidance route 83 as a virtual image Iv.
 平面地図81は、現在位置を含むエリアを所定の縮尺により平面的に表示した地図である。なお、平面地図81の縮尺は、図示しない入力手段によるヘッドアップディスプレイ2への所定の入力により変更される。現在位置表示82は、平面地図81での車両の現在位置を示す。案内ルート83は、平面地図81中で車両が走行すべき案内ルートを示す。 The planar map 81 is a map in which an area including the current position is planarly displayed at a predetermined scale. The scale of the planar map 81 is changed by a predetermined input to the head-up display 2 by an input unit (not shown). The current position display 82 indicates the current position of the vehicle on the planar map 81. A guide route 83 indicates a guide route that the vehicle should travel in the planar map 81.
 [停止時のルート案内]
 次に、車両が停止しているときのルート案内について説明する。小型液晶ディスプレイなどを表示装置として使用する一般的なナビゲーション装置では、運転者は必要なときに限って表示画像を見るので、車両が走行しているか停止しているかによって表示画像の内容を変更する必要はあまりない。これに対し、本実施例によるヘッドアップディスプレイでは、表示画像が常に運転者の前方に表示されるため、常に運転者の視野の一部に入ってくる。このため、車両の走行中に文字情報が表示されると、運転者は無意識のうちにその文字を読もうとして注意力を奪われる可能性がある。そこで、本実施例では、車両の走行中は主として文字を含まないアイコンなどの画像を表示し、車両が停止したときには文字情報の表示を追加することとする。
[Route guidance when stopping]
Next, route guidance when the vehicle is stopped will be described. In a general navigation device using a small liquid crystal display or the like as a display device, the driver views the display image only when necessary, so the content of the display image is changed depending on whether the vehicle is running or stopped. There is not much need. On the other hand, in the head-up display according to the present embodiment, the display image is always displayed in front of the driver, and therefore always enters a part of the driver's field of view. For this reason, if the character information is displayed while the vehicle is traveling, the driver may be unconsciously deprived of his / her attention to read the character. Therefore, in the present embodiment, an image such as an icon that does not include characters is mainly displayed while the vehicle is running, and character information display is added when the vehicle stops.
 以下、表示画像例を参照して説明する。図6~8に示す表示画像例は、便宜上いずれも運転者がコンバイナ9を介して視認する部分の画像、即ち、図4、図5における破線9内の画像のみを示すものであり、フロントガラスの上部位置に虚像として表示されるものである。 Hereinafter, description will be given with reference to display image examples. The display image examples shown in FIGS. 6 to 8 show only the image of the part visually recognized by the driver through the combiner 9, that is, only the image within the broken line 9 in FIGS. It is displayed as a virtual image at the upper position of.
 図6(a)はルート案内中における表示画像例を示す。図6(a)の表示画像例は、図5と同様に、平面地図81上に現在位置表示82及び案内ルート83が示されている。また、図6(a)では、平面地図81上に、文字情報を含まない方角情報表示リング75が表示されている。なお、図6(a)では、平面地図81に対応させて、方角情報表示リング75も楕円ではなく円で表示される。方角情報表示リング75上には、対応する方角に位置する地点又は建物などがアイコン752~754として表示されているが、文字情報は含まれていない。この例では、アイコン752は目的地を示し、アイコン753は公園を示し、アイコン754は有名なビルを示す。なお、図6(a)は、ルート案内中であるが次の案内地点が十分に遠く、次の案内地点は未だ案内ルート83上に現れていない。 FIG. 6A shows an example of a display image during route guidance. In the display image example of FIG. 6A, the current position display 82 and the guide route 83 are shown on the plane map 81 as in FIG. 5. In FIG. 6A, a direction information display ring 75 that does not include character information is displayed on the planar map 81. In FIG. 6A, the direction information display ring 75 is also displayed as a circle instead of an ellipse, corresponding to the planar map 81. On the direction information display ring 75, points or buildings located in the corresponding direction are displayed as icons 752 to 754, but character information is not included. In this example, icon 752 indicates a destination, icon 753 indicates a park, and icon 754 indicates a famous building. In FIG. 6A, route guidance is being performed, but the next guidance point is sufficiently far away, and the next guidance point has not yet appeared on the guidance route 83.
 図6(b)は、車両の停止時の表示画像例である。ヘッドアップディスプレイ2の制御部4は、車両が走行しているか停止しているか示す情報をナビゲーション装置1から取得し、車両が走行しているときには図6(a)に例示するルート案内画像を表示し、車両が停止しているときには図6(b)に例示するルート案内画像を表示する。即ち、車両の走行中に図6(a)の表示画像が表示されている状態で、車両が停止すると、図6(b)の表示画像が表示される。 FIG. 6B is an example of a display image when the vehicle is stopped. The control unit 4 of the head-up display 2 acquires information indicating whether the vehicle is traveling or stopped from the navigation device 1 and displays a route guidance image illustrated in FIG. 6A when the vehicle is traveling. When the vehicle is stopped, the route guidance image illustrated in FIG. 6B is displayed. That is, when the vehicle stops while the display image of FIG. 6A is displayed while the vehicle is running, the display image of FIG. 6B is displayed.
 図6(a)と図6(b)を比較するとわかるように、車両が停止すると、まず、方角情報表示リング75の外側に、それより径の大きい追加リング77が表示される。そして、図6(a)において方角情報表示リング75上に位置していたアイコン752~754が追加リング77上に移動し、さらに各アイコン752~754に対して吹き出し752x~754xが表示される。吹き出し752x~754xは、それぞれ対応するアイコン752~754が示す地点、建物などの内容を示す文字情報を表示する。具体的に、吹き出し752xはアイコン752が示す公園の名称「XX公園」を表示し、吹き出し753xはアイコン753が示す「目的地」を表示し、吹き出し754xはアイコン754が示すビルの名称「YYビル」を表示する。 6A and 6B, when the vehicle stops, first, an additional ring 77 having a larger diameter is displayed outside the direction information display ring 75. Then, the icons 752 to 754 located on the direction information display ring 75 in FIG. 6A move to the additional ring 77, and balloons 752x to 754x are displayed for the icons 752 to 754, respectively. Balloons 752x to 754x display character information indicating contents such as points and buildings indicated by the corresponding icons 752 to 754, respectively. Specifically, the balloon 752x displays the park name “XX Park” indicated by the icon 752, the balloon 753x displays “Destination” indicated by the icon 753, and the balloon 754x indicates the building name “YY building” indicated by the icon 754. Is displayed.
 このように、車両が停止すると、方角情報表示リング75の外側にそれより大きい追加リング77が表示され、その上に各アイコン752~754が表示されるので、各アイコンを目立たせて運転者に見せることができる。また、車両が停止したときに、追加リング77が現れるので、これにより運転車の注意を表示画像に引き付ける効果もある。また、各アイコン752~754に対して、吹き出し752x~754xにより各アイコン752~754が示す地点、建物などの内容を文字情報により表示するので、各アイコン752~754が何を示すのかを運転者に明確に伝えることができる。 In this way, when the vehicle stops, an additional ring 77 larger than that is displayed outside the direction information display ring 75, and icons 752 to 754 are displayed thereon, so that each icon is conspicuous and is displayed to the driver. Can show. Further, since the additional ring 77 appears when the vehicle stops, this also has the effect of attracting the driver's attention to the display image. In addition, for each icon 752 to 754, the contents indicated by the icons 752 to 754 by the balloons 752x to 754x are displayed as character information, so that the driver shows what each icon 752 to 754 indicates. Can be clearly communicated to.
 このように、本実施例では、車両の走行中は主として文字情報を表示せず、アイコンなどを主とする画像を表示するので、表示画像が運転手の注意力を必要以上に引き付けることはない。一方、車両が停止すると、追加リング77が表示されて運転手の注意を引き付けるとともに、各アイコンが示す地点又は建物などが文字情報で表示されるので、それらを明確に運転手に伝えることができる。 As described above, in this embodiment, the character information is not mainly displayed while the vehicle is running, and the image mainly including icons is displayed. Therefore, the display image does not attract the driver's attention more than necessary. . On the other hand, when the vehicle stops, an additional ring 77 is displayed to attract the driver's attention, and the point or building indicated by each icon is displayed as text information, so that it can be clearly communicated to the driver. .
 なお、上記の例では、目的地などの地点、ビルなどの建物をアイコンとして表示しているが、アイコンとして表示される対象(「表示対象」と呼ぶ。)はこれらには限られない。例えば、地点としては目的地のほかに、経由地、立ち寄り地なども表示対象とすることができる。また、これらの他に、他の車両、歩行中の人物なども表示対象とすることができる。例えば、友人の車両の位置をその車両に搭載されているナビゲーション装置から受信したり、GPS機能付き携帯端末を所持して歩行している友人の位置情報をその携帯端末から受信したりすることにより、その車両や人物の位置情報を取得すれば、その位置に対応する表示画像中の位置に、車両や歩行者のアイコンを表示することができる。 In the above example, a point such as a destination or a building such as a building is displayed as an icon, but an object displayed as an icon (referred to as a “display object”) is not limited thereto. For example, as a point, in addition to a destination, a transit point, a stopover, and the like can be displayed. In addition to these, other vehicles, walking people, and the like can also be displayed. For example, by receiving the position of a friend's vehicle from a navigation device mounted on the vehicle, or receiving the position information of a friend who is walking with a portable terminal with a GPS function from the portable terminal If the position information of the vehicle or person is acquired, the icon of the vehicle or pedestrian can be displayed at the position in the display image corresponding to the position.
 上記の例では、単純に車両が走行しているか停止しているかによって、文字情報の表示、非表示を切り替えているが、車両の走行中については案内地点までの距離を考慮して切り替えを行うこととしてもよい。即ち、図6(a)に示すように、次の案内地点が十分に遠い場合に限り文字情報を含む表示画像に切り替えることとしてもよい。つまり、次の案内地点が近い場合には、それまでの表示画像を継続した方が運転者の混乱を招くこともなく好ましいとも考えられるので、車両が停止した場合であっても、次の案内地点までの距離が所定距離以内である場合には、それまでの表示画像を継続することとしてもよい。 In the above example, the display and non-display of the character information is switched depending on whether the vehicle is simply running or stopped. However, when the vehicle is running, switching is performed in consideration of the distance to the guide point. It is good as well. That is, as shown in FIG. 6A, the display image including the character information may be switched only when the next guide point is sufficiently far away. In other words, when the next guidance point is near, it is considered preferable to continue the display image so far without causing confusion for the driver, so even if the vehicle stops, the next guidance When the distance to the point is within a predetermined distance, the display image up to that point may be continued.
 図7(a)は、次の案内地点が所定距離より近い場合の表示画像例を示す。次の案内地点が近く、表示された案内ルート83は次の案内地点で左折することを示している。このような場合には、車両が停止した場合でも、それまでのルート案内画像を継続して表示することが好ましい。 FIG. 7A shows an example of a display image when the next guide point is closer than a predetermined distance. The next guide point is close, and the displayed guide route 83 indicates that a left turn is made at the next guide point. In such a case, it is preferable to continuously display the route guidance image so far even when the vehicle stops.
 なお、次の案内地点までの「所定距離」は予め決定されるものであり、例えばルート案内画像において次の案内地点が表示画像内に現れるときの現在位置と当該次の案内地点との距離とすることができる。即ち、ヘッドアップディスプレイ2の制御部4は、ルート案内画像を表示している場合、次の案内地点と現在位置との距離を常に監視しており、その距離が所定距離(例えば300m、500mなど)より短くなったときに、案内ルート83上に次の案内地点を表示する、即ち、次の案内地点が案内ルート83上に現れる。よって、現在位置から次の案内地点までの距離が上記所定距離以内にある場合には、車両が停止しても、それまでのルート案内画像の表示を継続するようにすればよい。言い換えると、図6(a)のように、案内ルート83上に次の案内地点が表示されていない状態で車両が停止した場合にのみ、図6(b)に示すように文字情報を表示させることとすればよい。 Note that the “predetermined distance” to the next guide point is determined in advance, and for example, the distance between the current position when the next guide point appears in the display image in the route guide image and the next guide point. can do. That is, when the route guidance image is displayed, the control unit 4 of the head-up display 2 constantly monitors the distance between the next guidance point and the current position, and the distance is a predetermined distance (for example, 300 m, 500 m, etc.). ) When it becomes shorter, the next guide point is displayed on the guide route 83, that is, the next guide point appears on the guide route 83. Therefore, when the distance from the current position to the next guidance point is within the predetermined distance, even if the vehicle stops, the display of the route guidance image so far may be continued. In other words, character information is displayed as shown in FIG. 6B only when the vehicle stops in a state where the next guide point is not displayed on the guide route 83 as shown in FIG. 6A. You can do that.
 図8は、案内ルートが設定されておらず、ルート案内が実行されていない場合の表示画像例を示す。図8(a)は車両の走行中の表示画像例であり、図8(b)は車両の停止時の表示画像例である。ルート案内中でない場合も、案内ルートが表示されていない点以外は、基本的にルート案内中と同様の表示がなされる。即ち、ルート案内中でない場合、車両の走行中は図8(a)に示すように案内ルートを含まない地図と、文字情報を含まない方角情報表示リング75が表示される。なお、ルート案内中でないため、目的地を示すアイコン752は表示されていない。一方、車両が停止した時には、追加リング77が追加され、各アイコン753~754に対して吹き出し753x~754xにより文字情報が追加表示される。 FIG. 8 shows an example of a display image when no guidance route is set and route guidance is not executed. FIG. 8A is an example of a display image while the vehicle is traveling, and FIG. 8B is an example of a display image when the vehicle is stopped. Even when the route guidance is not being performed, the same display as that during the route guidance is basically performed except that the guidance route is not displayed. That is, when the route is not being guided, a map that does not include the guide route and a direction information display ring 75 that does not include the character information are displayed as shown in FIG. Since route guidance is not being performed, the icon 752 indicating the destination is not displayed. On the other hand, when the vehicle stops, an additional ring 77 is added, and character information is additionally displayed on each of the icons 753 to 754 with balloons 753x to 754x.
 なお、ハイウェイモード中に車両が停止した場合には、図6(b)、図8(b)のように、追加リング77及び文字情報を示す吹き出し752x~754xの追加表示は行わない。ハイウェイモードの表示例を図7(b)に示す。ハイウェイモードでは、高速道路上におけるインターチェンジ、サービスエリア(SA)、パーキングエリア(PA)などが文字により表示されているので、その表示を継続すればよい。 When the vehicle stops during the highway mode, the additional ring 77 and the balloons 752x to 754x indicating the character information are not additionally displayed as shown in FIGS. 6 (b) and 8 (b). A display example of the highway mode is shown in FIG. In the highway mode, interchanges on the expressway, service area (SA), parking area (PA), and the like are displayed in characters, and the display may be continued.
 次に、車両の停止時における表示処理について、図9のフローチャートを参照して説明する。なお、この処理は、ヘッドアップディスプレイ2の制御部4が車両の走行中に所定時間間隔で繰り返し実行する。 Next, display processing when the vehicle is stopped will be described with reference to the flowchart of FIG. This process is repeatedly executed by the control unit 4 of the head-up display 2 at predetermined time intervals while the vehicle is traveling.
 まず、制御部4は、車両の走行中に、走行中の画像を表示する(ステップS10)。ここで、走行中の画像とは、図6(a)、図7(a)及び図8(a)に示すように、平面地図81及び方角情報表示リング75を含み、文字情報が表示されていない画像、もしくは図7(b)に示すハイウェイモードの画像である。 First, the control unit 4 displays an image of traveling while the vehicle is traveling (step S10). Here, the running image includes a plane map 81 and a direction information display ring 75 as shown in FIGS. 6A, 7A, and 8A, and character information is displayed. Or an image in the highway mode shown in FIG.
 次に、制御部4はナビゲーション装置1から取得した車両の速度情報などに基づいて、車両が停止したか否かを判定する(ステップS11)。車両が停止していない場合(ステップS11:No)、走行中の画像表示を継続するため、制御部4は処理を終了する。一方、車両が停止した場合(ステップS11:Yes)、制御部4は現在の表示モードがハイウェイモードであるか否かを判定する(ステップS12)。 Next, the control unit 4 determines whether or not the vehicle has stopped based on the vehicle speed information obtained from the navigation device 1 (step S11). When the vehicle is not stopped (step S11: No), the control unit 4 ends the process in order to continue the image display during traveling. On the other hand, when the vehicle stops (step S11: Yes), the control unit 4 determines whether or not the current display mode is the highway mode (step S12).
 ハイウェイモードである場合(ステップS12:Yes)、ハイウェイモードの画像表示を継続するため、制御部4は処理を終了する。一方、ハイウェイモードでない場合(ステップS13:No)、制御部4はルート案内中であるか否かを判定する(ステップS13)。ルート案内中でない場合(ステップS13:No)、処理はステップS15へ進む。一方、ルート案内中である場合(ステップS13:Yes)、制御部4は次の案内地点が所定距離以内であるか否かを判定する(ステップS14)。 When the highway mode is selected (step S12: Yes), the control unit 4 ends the process in order to continue image display in the highway mode. On the other hand, when not in the highway mode (step S13: No), the control unit 4 determines whether route guidance is being performed (step S13). When route guidance is not being performed (step S13: No), the process proceeds to step S15. On the other hand, when route guidance is being performed (step S13: Yes), the control unit 4 determines whether or not the next guidance point is within a predetermined distance (step S14).
 次の案内地点が所定距離以内である場合(ステップS14:Yes)、前述のようにそれまでの文字によらないルート案内画像の表示を継続することが好ましいので、制御部4は処理を終了する。一方、次の案内地点が処理距離以内でない場合(ステップS14:No)、即ち、次の案内地点が十分に遠い場合、処理はステップS15へ進む。 If the next guidance point is within the predetermined distance (step S14: Yes), it is preferable to continue displaying the route guidance image without depending on the characters as described above, so the control unit 4 ends the process. . On the other hand, if the next guide point is not within the processing distance (step S14: No), that is, if the next guide point is sufficiently far away, the process proceeds to step S15.
 ステップS15において、制御部4は文字情報を追加表示する。即ち、図6(b)、図8(b)に示すように、追加リング77を表示して各アイコンを追加リング77上に移動するとともに、各アイコンに対して吹き出しを表示して文字情報を表示する。そして、処理を終了する。 In step S15, the control unit 4 additionally displays character information. That is, as shown in FIGS. 6B and 8B, an additional ring 77 is displayed and each icon is moved onto the additional ring 77, and a balloon is displayed for each icon to display character information. indicate. Then, the process ends.
 以上のように、本実施例では、車両の走行中は主として文字情報を含まない画像を表示し、車両の停止時に、好ましくは次の案内地点が所定距離以内である場合を除いて、文字情報を追加表示する。これにより、車両の走行中は文字情報が表示されないようにして運転者の注意力が奪われることを防止するとともに、車両の停止時には文字情報により運転者に案内ルートに関する情報を明確に伝えることが可能となる。 As described above, in this embodiment, an image that does not include character information is mainly displayed while the vehicle is traveling, and character information is preferably displayed when the vehicle is stopped, except preferably when the next guide point is within a predetermined distance. Is additionally displayed. This prevents text information from being displayed while the vehicle is running and prevents the driver's attention from being taken away. Also, when the vehicle is stopped, text information clearly informs the driver about the guidance route. It becomes possible.
 なお、上記の例は、図5に示す平面地図81の表示画像をベースにしているが、その代わりに図4に示す表示画像をベースとしてもよい。即ち、走行中は図4において方角情報表示リング75上にアイコンを表示し、さらに車両の停止時には追加リング77を表示してアイコンを追加リング77上に移動させるとともに、吹き出しを追加表示して吹き出しに文字情報を表示することとしてもよい。 Note that the above example is based on the display image of the planar map 81 shown in FIG. 5, but instead, the display image shown in FIG. 4 may be used as the base. That is, during traveling, an icon is displayed on the direction information display ring 75 in FIG. 4, and when the vehicle is stopped, an additional ring 77 is displayed to move the icon onto the additional ring 77, and a balloon is additionally displayed. Character information may be displayed on the screen.
 [変形例]
 以下、上述の実施例に好適な変形例について説明する。以下の変形例は、任意に組み合わせて上述の実施例に適用してもよい。
[Modification]
Hereinafter, modified examples suitable for the above-described embodiments will be described. The following modifications may be applied in any combination to the above-described embodiments.
 (変形例1)
 図3では、ヘッドアップディスプレイ2は、コンバイナ9を介して虚像Ivを運転者に視認させていたが、本発明が適用可能なヘッドアップディスプレイ2の構成は、これに限定されない。
(Modification 1)
In FIG. 3, the head-up display 2 allows the driver to visually recognize the virtual image Iv via the combiner 9, but the configuration of the head-up display 2 to which the present invention can be applied is not limited to this.
 図10は、変形例に係るヘッドアップディスプレイ2Aの概略構成を示す。図10に示すように、ヘッドアップディスプレイ2Aでは、光源ユニット3は、表示像を構成する光をフロントガラス25に向けて出射する。そして、フロントウィンドウ25は、光源ユニット3から出射される表示像が投影されると共に、表示像をアイポイントPeへ反射することで当該表示像を虚像Ivとして表示させる。 FIG. 10 shows a schematic configuration of a head-up display 2A according to a modification. As shown in FIG. 10, in the head-up display 2 </ b> A, the light source unit 3 emits light constituting the display image toward the windshield 25. The front window 25 projects the display image emitted from the light source unit 3 and reflects the display image to the eye point Pe to display the display image as a virtual image Iv.
 また、光源ユニット3の位置は、天井部27に設置される場合に限らず、ダッシュボード29の内部に設置されてもよい。この場合、ダッシュボード29には、図3のコンバイナ9又は図10のフロントウィンドウ25に光を通過させるための開口部が設けられる。 Further, the position of the light source unit 3 is not limited to being installed on the ceiling portion 27 but may be installed inside the dashboard 29. In this case, the dashboard 29 is provided with an opening for allowing light to pass through the combiner 9 of FIG. 3 or the front window 25 of FIG.
 (変形例2)
 図1等の説明では、ヘッドアップディスプレイ2は、ナビゲーション装置1から地図情報などを受信した後、運転補助情報を示す画像を生成していた。しかし、本発明が適用可能な構成はこれに限定されず、これに代えて、ナビゲーション装置1は、運転補助情報を示す画像を生成して当該画像をヘッドアップディスプレイ2に送信し、ヘッドアップディスプレイ2は、受信した画像を構成する光を出射してもよい。即ち、この場合、ナビゲーション装置1のシステムコントローラ20は、ヘッドアップディスプレイ2の制御部4が行う処理の一部又は全部を行う。これによっても、好適に、ヘッドアップディスプレイ2は、運転補助情報を虚像Ivとして運転者に視認させることができる。なお、この場合、ナビゲーション装置1及びヘッドアップディスプレイ2は、本発明における「ヘッドアップディスプレイ」又は「表示装置」の一例である。
(Modification 2)
In the description of FIG. 1 and the like, the head-up display 2 generates an image indicating driving assistance information after receiving map information or the like from the navigation device 1. However, the configuration to which the present invention can be applied is not limited to this. Instead, the navigation device 1 generates an image indicating driving assistance information, transmits the image to the head-up display 2, and the head-up display. 2 may emit light constituting the received image. That is, in this case, the system controller 20 of the navigation device 1 performs part or all of the processing performed by the control unit 4 of the head-up display 2. Also by this, the head-up display 2 can make a driver | operator visually recognize the driving assistance information as the virtual image Iv suitably. In this case, the navigation device 1 and the head-up display 2 are examples of the “head-up display” or “display device” in the present invention.
 他の例では、ヘッドアップディスプレイ2は、ナビゲーション装置1と通信を行うことなく、運転補助情報を表示してもよい。この場合、ヘッドアップディスプレイ2の光源ユニット3は、GPS受信機及び距離センサなどの自立測位装置を備え、車両の位置及び方向などを測定する。また、光源ユニット3は、施設情報を含む地図情報などを予めメモリに記憶する。そして、光源ユニット3は、測定した車両の位置等に基づき、地図情報等を参照して、運転補助情報を示す画像を構成する光を出射する。 In another example, the head-up display 2 may display driving assistance information without communicating with the navigation device 1. In this case, the light source unit 3 of the head-up display 2 includes a self-supporting positioning device such as a GPS receiver and a distance sensor, and measures the position and direction of the vehicle. The light source unit 3 stores map information including facility information in a memory in advance. Then, the light source unit 3 refers to map information and the like based on the measured vehicle position and the like, and emits light constituting an image indicating driving assistance information.
 (変形例3)
 図4の表示例では、目的地を表す目的地アイコン752、及び、ランドマークを示すアイコン753、754などが方角情報表示リング75上に表示されていた。これに加えて、ヘッドアップディスプレイ2は、設定された立寄地、又は/及び、GPS受信機が搭載された携帯端末機を有する友人の位置などの種々の対象の位置を示すアイコンを方角情報表示リング75上に表示させてもよい。
(Modification 3)
In the display example of FIG. 4, a destination icon 752 indicating a destination, icons 753 and 754 indicating landmarks, and the like are displayed on the direction information display ring 75. In addition to this, the head-up display 2 displays direction information with icons indicating the positions of various objects such as the set stop-off location and / or the position of a friend who has a portable terminal equipped with a GPS receiver. It may be displayed on the ring 75.
 例えば、ナビゲーション装置1が通話機能を有し、GPSが搭載された友人の携帯端末機からナビゲーション装置1に着信があった場合、ナビゲーション装置1は、上述の携帯端末機からGPS受信機により取得された位置情報を通信により受信し、当該位置情報並びに自車の位置及び方向の情報を制御部4へ転送する。そして、光源ユニット3は、受信した情報に基づき、着信があった携帯端末機の友人の位置を示すアイコンを方角情報表示リング75上に表示させる。 For example, when the navigation device 1 has a call function and a call is received from a friend's portable terminal equipped with GPS, the navigation device 1 is acquired from the above-described portable terminal by the GPS receiver. The received position information is received by communication, and the position information and the position and direction information of the own vehicle are transferred to the control unit 4. Based on the received information, the light source unit 3 displays an icon indicating the position of the friend of the mobile terminal that received the incoming call on the direction information display ring 75.
 (変形例4)
 図4に示す虚像Ivによる表示に加えて、ヘッドアップディスプレイ2は、案内ルート73の案内地点に対応する位置に進行方向を示す矢印をさらに付加したり、同心円76の各々に対応させて、各同心円76が示す案内地点からの距離の表示を付加したりしてもよい。
(Modification 4)
In addition to the display by the virtual image Iv shown in FIG. 4, the head-up display 2 further adds an arrow indicating the traveling direction to a position corresponding to the guide point of the guide route 73, or corresponds to each of the concentric circles 76. An indication of the distance from the guide point indicated by the concentric circle 76 may be added.
 図11(a)~(c)は、変形例において、コンバイナ9を介して視認される時系列での虚像Ivによる情報表示の遷移を示す。具体的に、図11(a)は、車両が案内地点から100m~75m付近にある場合の虚像Ivによる情報表示を示し、図11(b)は、車両が案内地点から75m~50m付近にある場合の虚像Ivによる情報表示を示し、図11(c)は、車両が案内地点から50m~25m付近にある場合の虚像Ivによる情報表示を示す。 FIGS. 11A to 11C show transition of information display by the virtual image Iv in a time series visually recognized through the combiner 9 in the modification. Specifically, FIG. 11A shows the information display by the virtual image Iv when the vehicle is in the vicinity of 100 m to 75 m from the guidance point, and FIG. 11B shows the vehicle in the vicinity of 75 m to 50 m from the guidance point. FIG. 11C shows the information display by the virtual image Iv when the vehicle is in the vicinity of 50 m to 25 m from the guide point.
 図11(a)~(c)に示すように、本変形例では、制御部4は、案内ルート73の案内地点に対応する位置に進行方向(ここでは左方向)を示す矢印77と、同心円76が示す案内地点からの距離を表示した距離表示78とを虚像Ivとしてそれぞれ表示させている。なお、ここでは、第1同心円761は、案内地点から25mの位置を示し、第2同心円762は、案内地点から50mの位置を示し、第3同心円763は、案内地点から75mの位置を示すものとする。 As shown in FIGS. 11A to 11C, in this modification, the control unit 4 has an arrow 77 indicating a traveling direction (here, the left direction) at a position corresponding to the guide point of the guide route 73 and a concentric circle. A distance display 78 displaying the distance from the guide point indicated by 76 is displayed as a virtual image Iv. Here, the first concentric circle 761 indicates a position 25 m from the guidance point, the second concentric circle 762 indicates a position 50 m from the guidance point, and the third concentric circle 763 indicates a position 75 m from the guidance point. And
 そして、本変形例では、制御部4は、案内地点と車両の距離とに応じて矢印77の大きさを変える。具体的には、図11(a)~(c)に示すように、制御部4は、車両が案内地点に近づくほど、矢印77を大きく表示する。これにより、制御部4は、運転者に対し、次に右左折すべき案内地点及び当該案内地点での進行方向を明確に視認させる。 And in this modification, the control part 4 changes the magnitude | size of the arrow 77 according to the distance of a guidance point and a vehicle. Specifically, as shown in FIGS. 11A to 11C, the control unit 4 displays the arrow 77 larger as the vehicle approaches the guide point. Thereby, the control part 4 makes a driver | operator clearly visually recognize the guidance point which should turn right and left next, and the advancing direction in the said guidance point.
 また、制御部4は、現在位置に最も近い位置を示す同心円76に対して、距離表示78を順次表示する。具体的には、図11(a)のように案内地点から75m~100mの地点を車両が走行中の場合には、第3同心円763が表示されている同心円76のうち最外周の同心円76にあたることから、制御部4は、第3同心円763に対して当該第3同心円763が案内地点から75m地点である旨の距離表示78を付す。また、図11(b)のように案内地点から50m~100mの地点を車両が走行中の場合には、現在位置よりも案内地点から遠い地点を示す第3同心円763は表示されず、表示されている同心円76のうち第2同心円762が最外周の同心円76となる。従って、この場合、制御部4は、第2同心円762に対して当該第2同心円762が案内地点から50m地点である旨の距離表示78を付す。同様に、図11(c)のように案内地点から25m~50mの地点を車両が走行中の場合には、現在位置よりも案内地点から遠い地点を示す第3同心円763及び第2同心円762は表示されず、表示されている同心円76のうち第1同心円761が最外周の同心円76となる。従って、この場合、制御部4は、第1同心円761に対して当該第1同心円761が案内地点から25m地点である旨の距離表示78を付している。これにより、制御部4は、運転者に対し、次に右左折すべき案内地点までの距離を容易に視認させる。 Also, the control unit 4 sequentially displays the distance display 78 for the concentric circle 76 indicating the position closest to the current position. Specifically, as shown in FIG. 11A, when the vehicle is traveling from 75 m to 100 m from the guide point, the third concentric circle 763 corresponds to the outermost concentric circle 76. Therefore, the control unit 4 attaches a distance display 78 to the third concentric circle 763 to the effect that the third concentric circle 763 is a 75 m point from the guide point. Further, as shown in FIG. 11B, when the vehicle is traveling from 50 m to 100 m from the guide point, the third concentric circle 763 indicating a point farther from the guide point than the current position is not displayed. The second concentric circle 762 among the concentric circles 76 is the outermost concentric circle 76. Therefore, in this case, the control unit 4 attaches a distance display 78 to the second concentric circle 762 to the effect that the second concentric circle 762 is 50 m from the guide point. Similarly, as shown in FIG. 11C, when the vehicle is traveling from 25 m to 50 m from the guide point, the third concentric circle 763 and the second concentric circle 762 indicating points farther from the guide point than the current position are Of the displayed concentric circles 76, the first concentric circle 761 is the outermost concentric circle 76. Therefore, in this case, the control unit 4 attaches a distance display 78 to the first concentric circle 761 to the effect that the first concentric circle 761 is 25 m from the guide point. Thereby, the control part 4 makes a driver | operator easily visually recognize the distance to the guidance point which should turn right and left next.
 本発明は、経路案内や車両の情報を運転者に視認させるヘッドアップディスプレイに好適に適用することができる。 The present invention can be suitably applied to a head-up display that allows a driver to visually recognize route guidance and vehicle information.
 1 ナビゲーション装置
 2 ヘッドアップディスプレイ
 3 光源ユニット
 9 コンバイナ
 25 フロントウィンドウ
 28 ボンネット
 29 ダッシュボード
DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Head-up display 3 Light source unit 9 Combiner 25 Front window 28 Bonnet 29 Dashboard

Claims (7)

  1.  移動体の前方の景色に虚像を重畳させて表示する表示手段と、
     前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、
     前記表示制御手段は、前記移動体が停止しているときには、前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とするヘッドアップディスプレイ。
    Display means for displaying a virtual image superimposed on the scenery in front of the moving object;
    A display for displaying on the display means an image in which an icon indicating a display object existing around the current position of the moving object is displayed so as to indicate a direction in which the display object exists with reference to the current position of the moving object Control means,
    When the moving body is stopped, the display control means displays character information indicating information corresponding to the icon in characters corresponding to the icon, and when the moving body is moving, the character A head-up display that does not display information.
  2.  前記表示制御手段は、前記移動体の現在位置を中心として方角を示す方角表示リングを表示させ、当該方角表示リング上の対応する位置に前記アイコンを表示させることを特徴とする請求項1に記載のヘッドアップディスプレイ。 The said display control means displays the direction display ring which shows a direction centering | focusing on the present position of the said mobile body, and displays the said icon in the corresponding position on the said direction display ring. Head-up display.
  3.  前記表示制御手段は、前記移動体が移動しているときは前記方角表示リング上に前記アイコンを表示させ、前記移動体が停止しているときは前記方角表示リングの外側に追加リングを表示させるとともに、当該追加リング上に前記アイコンを表示させることを特徴とする請求項2に記載のヘッドアップディスプレイ。 The display control means displays the icon on the direction display ring when the moving body is moving, and displays an additional ring outside the direction display ring when the moving body is stopped. The head-up display according to claim 2, wherein the icon is displayed on the additional ring.
  4.  前記表示制御手段は、前記文字情報を、対応するアイコンについての吹き出し中に表示させることを特徴とする請求項1乃至3のいずれか一項に記載のヘッドアップディスプレイ。 The head-up display according to any one of claims 1 to 3, wherein the display control means displays the character information in a balloon for a corresponding icon.
  5.  前記表示制御手段は、前記移動体の現在位置から、次の案内地点までの距離が所定距離以内であるときには、前記移動体が停止していても前記文字情報を表示させないことを特徴とする請求項1乃至4のいずれか一項に記載のヘッドアップディスプレイ。 The display control means does not display the character information even when the moving body is stopped when the distance from the current position of the moving body to the next guide point is within a predetermined distance. Item 5. The head-up display according to any one of Items 1 to 4.
  6.  移動体の前方の景色に虚像を重畳させて表示する表示手段と、
     前記移動体の現在位置の周辺に存在する表示対象を示すアイコンを、前記移動体の現在位置を基準として当該表示対象が存在する方角を示すように表示した画像を、前記表示手段に表示させる表示制御手段と、を備え、
     前記表示制御手段は、前記移動体が停止しているときには、前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とする表示装置。
    Display means for displaying a virtual image superimposed on the scenery in front of the moving object;
    A display for displaying on the display means an image in which an icon indicating a display object existing around the current position of the moving object is displayed so as to indicate a direction in which the display object exists with reference to the current position of the moving object Control means,
    When the moving body is stopped, the display control means displays character information indicating information corresponding to the icon in characters corresponding to the icon, and when the moving body is moving, the character A display device characterized by not displaying information.
  7.  移動体に搭載されたヘッドアップディスプレイにより実行される表示方法であって、
     前記移動体の現在位置の周辺に存在する表示対象地点又は建物を示すアイコンを、前記移動体の現在位置を基準として当該表示対象地点又は建物が存在する方角を示すように表示した画像を、虚像として前記移動体の前方の景色に重畳させて表示する表示工程を有し、
     前記表示工程は、前記移動体が停止しているときには、前記アイコンに対応させて前記アイコンに対応する情報を文字で示した文字情報を表示させ、前記移動体が移動しているときには前記文字情報を表示させないことを特徴とする表示方法。
    A display method executed by a head-up display mounted on a moving object,
    An image that displays an icon indicating a display target point or building existing around the current position of the mobile object so as to indicate a direction in which the display target point or building exists with reference to the current position of the mobile object, A display step of superimposing and displaying on the scenery in front of the moving body,
    In the display step, when the moving body is stopped, character information indicating characters corresponding to the icon is displayed corresponding to the icon, and when the moving body is moving, the character information is displayed. The display method characterized by not displaying.
PCT/JP2011/072544 2011-09-30 2011-09-30 Head-up display, display device and display method WO2013046428A1 (en)

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