WO2017138527A1 - 情報提供装置 - Google Patents
情報提供装置 Download PDFInfo
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- WO2017138527A1 WO2017138527A1 PCT/JP2017/004409 JP2017004409W WO2017138527A1 WO 2017138527 A1 WO2017138527 A1 WO 2017138527A1 JP 2017004409 W JP2017004409 W JP 2017004409W WO 2017138527 A1 WO2017138527 A1 WO 2017138527A1
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- display
- information
- provided information
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Images
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Definitions
- the present invention relates to an information providing apparatus.
- a head-up for displaying an image for providing information to a passenger of a moving body such as a vehicle, a ship, an aircraft, or an industrial robot moving with a passenger such as a driver carrying thereon
- a display (HUD) device or the like.
- Patent Document 1 includes an HUD device that reflects image light by a mirror and projects the light on a windshield of a vehicle, and displays the image on a front road surface or other visible position that the driver visually recognizes via a windshield.
- An information providing apparatus is disclosed.
- this information providing device by changing the mirror angle of the HUD device, the emergency information image with high importance is displayed at a position substantially overlapping the driver's reference line of sight, and then the display position is made lower than the reference line of sight. Perform control to change.
- the display position of the provided information image may be changed for a predetermined purpose.
- the display position of the provided information image is changed in order to prevent the provided information image from obstructing the view of the passenger or to make the provided information image easily visible to the passenger.
- the change in display position of the provided information image is less likely to be noticed by the passenger as the change speed is slower, but if the change speed is too slow, it takes time to achieve the purpose of changing the display position. It will be long.
- the information providing apparatus is an information providing apparatus for displaying a virtual image in a display area outside the moving body, and a display unit for displaying a provided information image as a virtual image in the display area; And display control means for controlling the display means so as to change the display position of the provided information image in the display area, wherein the display control means increases the moving speed of the movable body.
- the display means is controlled so that the change speed of the display position of the provided information image becomes fast.
- the excellent effect is achieved that the change speed of the display position can be made as fast as possible within a range where the change of the display position of the provided information image is not noticed to the passenger of the mobile body. Ru.
- FIG. 1 it is explanatory drawing which shows an example of the virtual image displayed on a display area in piles on the front scenery of the own vehicle seen from a driver
- BRIEF DESCRIPTION OF THE DRAWINGS It is the model which represented typically the structure of the motor vehicle carrying the HUD apparatus for motor vehicles in embodiment. It is a schematic diagram which represented the internal configuration of the HUD device for the vehicles typically. It is a hardware block diagram of a control system in the HUD device for the same car. BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows schematic structure of the driver
- FIG. 17 is an explanatory view (part one) showing an image example in which the display position of the vehicle speed display image is changed as the route designation image and the remaining distance image move from the upper area to the lower area in the display area;
- FIG. 17 is an explanatory view (part 2) showing an example of an image in which the display position of the vehicle speed display image changes as the route designation image and the remaining distance image move from the upper area to the lower area in the display area;
- FIG. 17 is an explanatory view (part 3) showing an example of an image in which the display position of the vehicle speed display image changes as the route designation image and the remaining distance image move from the upper area to the lower area in the display area.
- Explanatory view (part 1) showing an image example in which the display position of the vehicle speed display image changes as the route designation image and the remaining distance image move from the upper area to the lower area in the display area in the first modification. is there.
- Explanatory drawing (part 2) which shows the example of an image in which the display position of a vehicle speed display image changes as a course designation image and a remaining distance image move from the upper area to the lower area in a display area in modification 1 is there.
- Explanatory drawing (the 3) which shows the image example to which the display position of a vehicle speed display image changes as a course designation image and a remaining distance image move from the upper area in a display area to a lower area in modification 1 is there.
- FIG. 16 is an explanatory view (part one) of an image example in which a display position of a vehicle speed display image changes in a second modification example
- FIG. 17 is an explanatory view (part two) of an image example in which a display position of a vehicle speed display image changes in a second modification example
- FIG. 16 is an explanatory view (part 3) showing an example of an image in which the display position of the vehicle speed display image is changed in the second modification
- driver information providing system including an automotive head-up display (HUD) device as an information providing device
- FIG. 1 is an explanatory view showing an example of a virtual image I displayed in a display area 700 (display area) superimposed on a landscape in front of the host vehicle 301 viewed from a driver 300 who is a passenger through a windshield 302.
- FIG. 2 is a schematic view schematically showing the structure of a car equipped with the car HUD device according to the present embodiment.
- FIG. 3 is a schematic view schematically showing an internal configuration of the automotive HUD device in the present embodiment.
- the automotive HUD device 200 in the present embodiment is installed, for example, in the dashboard of the host vehicle 301 which is a traveling body as a moving body.
- the projection light L which is image light emitted from the car HUD device 200 in the dashboard is reflected by the windshield 302 as a transmission / reflection member, and travels to the driver 300.
- the driver 300 can visually recognize a HUD display image such as a navigation image described later as the virtual image I.
- a combiner as a transmitting and reflecting member may be installed on the inner wall surface of the windshield 302 so that the driver can visually recognize the virtual image I by the projection light L reflected by the combiner.
- the driver 300 visually recognizes the virtual image I from an eye box (an area near the driver 300's eyes) on the light path of the light reflected by the windshield 302.
- the eyebox means a range in which the virtual image I can be viewed without adjusting the position of the viewpoint.
- the eye box serves as a reference point when, for example, converting “the upper limit of the change speed of the display position of the provided information image” described later into an angle change speed.
- the optical system or the like of the automotive HUD device 200 is configured such that the distance from the driver 300 to the virtual image I (the distance from the eyebox to the virtual image I) is 4 m or more.
- the conventional and general automotive HUD device has a distance from the driver 300 to the virtual image I of about 2 m.
- the driver 300 usually looks at an infinity point ahead of the vehicle or looks at a leading vehicle several tens of meters ahead. When the driver 300 focusing on such a distant place tries to visually recognize the virtual image I 2 m ahead, since the focal length is largely different, it is necessary to move the lens of the eyeball to a large extent.
- the focus adjustment time until focusing on the virtual image I becomes long, and it takes time to recognize the content of the virtual image I, and there is a problem that the eye of the driver 300 is easily fatigued. Further, it is difficult for the driver to notice the content of the virtual image I, and it is difficult to appropriately provide information to the driver by the virtual image I.
- the distance to the virtual image I is 4 m or more, the amount of moving the lens of the eyeball is reduced compared to the prior art, the focus adjustment time to the virtual image I is shortened, and the content of the virtual image I is recognized early As a result, it is possible to reduce fatigue of the driver's 300 eyes. Furthermore, the driver can easily notice the contents of the virtual image I, and the virtual image I facilitates the appropriate provision of information to the driver.
- the automotive HUD device 200 includes red, green, and blue laser light sources 201R, 201G, and 201B in the HUD main body 230, collimator lenses 202, 203, and 204 provided for the respective laser light sources, and two dichroic mirrors 205. , A light amount adjustment unit 207, a light scanning device 208 as a light scanning means, a free curved surface mirror 209, a microlens array 210 as a light diverging member, and a projection mirror 211 as a light reflecting member. ing.
- the laser light sources 201R, 201G, 201B, the collimator lenses 202, 203, 204, and the dichroic mirrors 205, 206 are unitized by an optical housing.
- LDs semiconductor laser elements
- the wavelength of the light beam emitted from the red laser light source 201R is, for example, 640 nm
- the wavelength of the light beam emitted from the green laser light source 201G is, for example, 530 nm
- the wavelength of the light beam emitted from the blue laser light source 201B is, for example, 445 nm .
- the HUD device 200 for an automobile projects an intermediate image formed on the microlens array 210 onto the windshield 302 of the host vehicle 301 to make the driver 300 a virtual image I of a magnified image of the intermediate image. Make it visible.
- Laser beams of respective colors emitted from the laser light sources 201R, 201G, and 201B are collimated by the collimator lenses 202, 203, and 204, respectively, and are combined by two dichroic mirrors 205 and 206, respectively.
- the combined laser beam is subjected to two-dimensional scanning by a mirror of the light scanning device 208 after the light quantity is adjusted by the light quantity adjustment unit 207.
- the scanning light L ′ which has been two-dimensionally scanned by the light scanning device 208 is reflected by the free-form surface mirror 209 to be corrected for distortion, and then collected by the microlens array 210 to draw an intermediate image.
- the microlens array 210 is used as a light diverging member for individually diverging and emitting the light flux for each pixel (one point of the intermediate image) of the intermediate image, but another light diverging member is used May be Further, as a method of forming the intermediate image G ′, a method using a liquid crystal display (LCD) or a fluorescent display tube (VFD) may be used.
- LCD liquid crystal display
- VFD fluorescent display tube
- a laser scanning method is preferable as in the present embodiment.
- the non-image portion in the display area of the virtual image I is irradiated with light by turning off the laser light sources 201R, 201G, and 201B. Can be completely cut off. Therefore, the situation in which the visibility of the front scenery of the vehicle 301 through the non-image portion is reduced by the light emitted from the automotive HUD device 200 can be avoided, and the visibility of the front scenery is high.
- the laser scanning method is preferable.
- the method using a liquid crystal display (LCD) or a fluorescent display tube (VFD) the brightness of the images other than the part of the image displayed in the display area 700 is increased, and the part of the image is displayed. This is because it is possible to widen the luminance difference between the other images.
- the optical scanning device 208 tilts the mirror in the main scanning direction and the sub scanning direction by a known actuator drive system such as MEMS (Micro Electro Mechanical Systems) to two-dimensionally scan (raster scan) laser light incident on the mirror. .
- the drive control of the mirror is performed in synchronization with the light emission timing of the laser light sources 201R, 201G, and 201B.
- the optical scanning device 208 is not limited to the configuration of the present embodiment, and may be configured by, for example, a mirror system including two mirrors that respectively swing or rotate around two axes orthogonal to each other.
- FIG. 4 is a hardware block diagram of a control system in the automotive HUD device 200 of the present embodiment.
- the control system of the automotive HUD device 200 mainly includes an FPGA 251, a CPU 252, a ROM 253, a RAM 254, an I / F 255, a bus line 256, an LD driver 257, and a MEMS controller 258.
- the FPGA 251 controls operation of the laser light sources 201R, 201G, and 201B of the light source unit 220 by the LD driver 257, and controls operation of the MEMS 208a of the light scanning device 208 by the MEMS controller 258.
- the CPU 252 controls each function of the automotive HUD device 200.
- the ROM 253 stores various programs such as an image processing program that the CPU 252 executes to control each function of the automotive HUD device 200.
- the RAM 254 is used as a work area of the CPU 252.
- the I / F 255 is an interface for communicating with an external controller and the like, and is connected to, for example, a vehicle navigation device 400, a sensor device 500, and the like described later via a CAN (Controller Area Network) of the host vehicle 301.
- CAN Controller Area Network
- FIG. 5 is a block diagram showing a schematic configuration of a driver information provision system in the present embodiment.
- a vehicle navigation device 400, a sensor device 500, and the like are provided as information acquisition means for acquiring driver provided information provided to the driver by the virtual image I.
- the automotive HUD device 200 in the present embodiment mainly includes a HUD main body 230 as an image light projection means and an image control device 250 as a display control means.
- the information acquisition means in the present embodiment is mounted on the own vehicle 301, using the information acquisition means installed outside the own vehicle 301, the information acquired by the information acquisition means is input via the communication means.
- the configuration may be
- the vehicle navigation device 400 in the present embodiment can widely use a known vehicle navigation device mounted on a car or the like.
- Information necessary for generating a route navigation image to be displayed as a virtual image I is output from the vehicle navigation device 400, and this information is input to the image control device 250.
- the route navigation image includes, for example, an image indicating information such as a distance to a point where the vehicle 301 should turn next (right turn, left turn, branching, etc.) and a direction to turn the next route.
- These pieces of information are input from the vehicle navigation device 400 to the image control device 250, and the HUD device 200 for an automobile under the control of the image control device 250, as shown in FIG.
- Navigation images such as 721-2 and remaining distance image 722 are displayed as virtual images in the upper area of the display area 700 as provided information images.
- the sensor device 500 in the present embodiment is configured of one or more sensors for detecting various information indicating the behavior of the host vehicle 301, the state of the host vehicle 301, the situation around the host vehicle 301, and the like.
- the sensor device 500 outputs sensing information necessary to generate an image to be displayed as a virtual image I, and the sensing information is input to the image control device 250.
- the vehicle speed information included in the CAN information of the host vehicle 301 is input from the sensor device 500 to the image control device 250.
- the vehicle speed display image 704 indicating the vehicle speed is displayed as a virtual image in the lower area of the display area 700 as a provided information image.
- the sensor of the sensor device 500 other than the sensor for detecting the vehicle speed of the host vehicle 301, for example, other vehicles, pedestrians, buildings (guard rails, etc.) existing around (forward, side, rear) of the host vehicle 301 Laser radar devices and imaging devices that detect the distance to a telephone pole, etc., sensors for detecting external environment information (such as outside temperature, brightness, weather, etc.) of the vehicle, driving operation of the driver 300 (brake scan, accelerator Sensors for detecting the degree of opening and closing, etc., sensors for detecting the remaining amount of fuel in the fuel tank of the vehicle 301, and sensors for detecting the state of various in-vehicle devices such as an engine and a battery.
- the sensor device 500 When such information is detected by the sensor device 500 and sent to the image control device 250, the information can be displayed as the virtual image I by the automotive HUD device 200 and provided to the driver 300.
- FIG. 6 is a hardware block diagram showing the main hardware of the image control device 250. As shown in FIG.
- a CPU 252 In the image control device 250, a CPU 252, a RAM 254, a ROM 253, an input I / F 255, and an output I / F 259 are mutually connected by a data bus line. Sensing information output from the sensor device 500, navigation information output from the vehicle navigation device 400, and the like are input to the I / F 255. A control signal or the like of the HUD main body 230 is output from the I / F 259.
- the CPU 252 executes various computer programs such as an information providing control program stored in the ROM 253 or the like to cause the image control device 250 to perform various controls and various processes described later.
- the provided information provided to the driver by the virtual image I may be any information as long as it is information useful to the driver.
- Such provided information can be roughly divided into passive information and active information.
- the passive information is information to be provided to the driver at the setting timing of the automotive HUD device 200, and for example, information having a certain relationship between the timing at which the information is provided and the content of the information Be
- active information is sufficient information if provided to the driver at the driver's desired timing, and for example, the relationship between the timing at which the information is provided and the content of the information is low or absent. Information.
- the passive information includes, for example, information related to safety during driving, route navigation information, and the like.
- Information related to safety during driving includes, for example, distance information between the host vehicle 301 and the preceding vehicle, emergency information related to driving (warning information such as emergency operation instruction information for instructing the driver to perform an emergency operation) Or alert information etc.).
- the route navigation information is information for guiding a traveling route to a preset destination, and is provided to the driver by a known vehicle navigation device. As route navigation information, traveling lane instruction information for instructing a traveling lane to be traveled at the nearest intersection, or course change operation instruction information for instructing a course change operation at an intersection at which the course should be changed from the straight ahead direction Etc.
- route specification information route specification images 721-1 and 721-2 for performing route specification of which route should be taken at the intersection etc.
- the remaining distance information (remaining distance image 722) to the intersection etc. to be performed and the name information of the intersection etc. may be mentioned.
- the active information mainly includes information acquired by the driver at a timing desired by the driver, and is thus information that is continuously displayed for a long period of time or at all times. For example, information specific to the road on which the host vehicle 301 is traveling, vehicle speed information of the host vehicle 301 (vehicle speed display image 704), current time information, and the like can be given. Specific information of the road includes, for example, the name of the road, the speed limit of the road, restricted content information such as overtaking prohibited, and information useful for the driver as information related to the road.
- the passive information and the active information roughly classified in this manner are displayed in the corresponding display areas in the display area 700 capable of displaying the virtual image I (provided information image).
- the display area 700 is divided into two display areas in the vertical direction, and in the upper area thereof, a passive information image mainly corresponding to passive information is displayed, and in the lower area, , Mainly displays an active information image corresponding to the active information.
- the driver 300 while driving usually looks at the infinity point ahead of the host vehicle or looks at the back of the leading vehicle traveling a few tens of meters ahead.
- the point of gaze 710 is about the vertical center of the front view seen from the windshield 302 or the vanishing point of the road surface.
- the display area 700 overlaps the lower part of the front view seen from the windshield 302, more specifically, as shown in FIG. 1, when the host vehicle 301 is traveling on a flat road surface It is positioned in the area
- a high-priority provided information image for providing information to the driver is displayed at a position near the driver's gaze point 710 so that the driver 300 can recognize it quickly and clearly. It is preferable to On the other hand, it is preferable to display a low priority provided information image (low priority provided information image) at a position far from the driver's gaze point 710. This is because, for example, when the driver recognizes the provided information image with high priority, the provided information image with low priority does not get in the way, or the provided information image with low priority interferes with the driver's view. To prevent the driver from feeling bothersome. Therefore, in the present embodiment, the provided information image with high priority is displayed at a position closer to the gaze point 710 of the driver, that is, above the display area 700 than the provided information image with low priority. There is.
- two-dimensional display and three-dimensional display can be performed.
- Human beings have two-dimensional visibility (pictorial cues) in the field of view, differences in vision between the two eyes, focusing operation of the eyes (motional cues), changes in the appearance of objects when the viewpoint moves (motion parallax Perceive the depth of space by Among them, by mainly using pictorial cues, it is possible to cause the information providing device to perceive display information (provided information image) which is a virtual image, to be present at an arbitrary position in the real space.
- the image projected on the windshield 302 is viewed as a virtual image superimposed on the front landscape by the viewer, so that the geometry of the display information in the virtual image matches the real space. If the shape is adjusted (geometric transformation), three-dimensional display of display information becomes possible. That is, by using the above-mentioned human perception of depth, it is possible to perceive (illustrate) as if display information exists three-dimensionally at an arbitrary position in real space as viewed from a viewer. Become.
- the visibility of display information can be improved by displaying the display information three-dimensionally matched with the real object present around the host vehicle as viewed from the viewer.
- the image viewed as a virtual image three-dimensionally matched with the real object present in the surroundings of the vehicle seen from the viewer and the image perceived as a virtual image not three-dimensionally matched with the real object viewed from the viewer Images may be displayed mixed in the displayable area in front of the windshield 302.
- the route designation images 721-1 and 721-2 indicating the route designation information and the remaining distance image 722 are provided information images that are three-dimensionally matched with the real object, and such provided information images are superimposed and provided. It is called an information image.
- the vehicle speed display image 704 is a two-dimensional provided information image which is not three-dimensionally matched with the real object, and such provided information image is referred to as a non-overlapping provided information image.
- FIG. 16 is an explanatory view showing an image example in which the display position of the vehicle speed display image 704 changes in accordance with movement from the upper area to the lower area.
- the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 in the present embodiment are controlled by the driver HUD via the windshield 302 by the automotive HUD device 200 under the control of the image control device 250. It is displayed to overlap the road surface to be visually recognized. More specifically, on the road surface, the distance to the intersection or the like for performing the course change operation indicated by the route designation images 721-1 and 721-2 matches the distance indicated by the remaining distance image 722 (that is, the remaining distance to the intersection or the like).
- the route designation images 721-1 and 721-2 and the remaining distance image 722 are displayed so as to overlap at the point (remaining distance point) of
- the visual recognition position of the road surface that the driver in operation visually recognizes through the windshield 302 moves from the upper side to the lower side in the display area 700 as the host vehicle 301 travels. Therefore, the visual recognition position of the remaining distance point on the road surface on which the route designation images 721-1 and 721-2 and the remaining distance image 722 are displayed overlapping also moves downward from above in the display area 700.
- the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 are displayed from above the display area 700 according to the movement of the visual recognition position of the remaining distance point on the road surface.
- the image control device 250 performs display control so as to change downward.
- the image control device 250 calculates a viewing position where the remaining distance point is viewed by the driver in the display area 700, based on the viewpoint position information and the like.
- the viewpoint position information of the driver may be fixed information indicating the position of the head or eyes of a standard driver, or a device for detecting the position of the head or eyes of the actual driver (image pickup means Or the like, and may be information indicating the viewpoint position of the driver obtained based on the detection result.
- the image control device 250 causes the car HUD device 200 to The route designation images 721-1 and 721-2 and the remaining distance image 722 are displayed at a position overlapping the viewing position of the remaining distance point. Thereafter, as shown in FIG. 7B, the image control device 250 moves the display position of the remaining distance point downward in the display area 700 as the vehicle 301 travels, as shown in FIG. 7B. , 721-2 and the display position of the remaining distance image 722 are controlled to control the car HUD device 200.
- the route specification image 721-1 and 721-2 and the remaining distance image are superimposed on the visible position of the remaining distance point. 722 can be viewed.
- the display of the route designation images 721-1 and 721-2 and the remaining distance image 722 may be erased at the timing when the visual recognition position of the remaining distance point goes downward from within the display area 700.
- the route designation image 721-1 and 721-2 and the remaining distance displayed by the driver so as to be superimposed on them while the visual recognition position of the remaining distance point goes downward from within the display area 700.
- the image 722 can not be recognized.
- the route designation image 721-1 is displayed in the lower area of the display area 700.
- Display control is performed so that the image 721-2 and the remaining distance image 722 continue to be displayed.
- the image control device 250 changes the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 which are changed in accordance with the movement of the visible position of the remaining distance point. When it reaches, stop the change of the display position.
- the driver visually recognizes the route designation images 721-1 and 721-2 and the remaining distance image 722 even after the viewing position of the remaining distance point goes downward from within the display area 700, Information can be obtained.
- the final movement position at which the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 are positioned is the position at which the vehicle speed display image 704 was originally displayed as shown in FIG. 7A. . Therefore, when the vehicle speed display image 704 is displayed as it is at the final movement position, the route designation images 721-1 and 721-2 and the remaining distance image 722 and the vehicle speed display image 704 are displayed overlapping each other. It will be difficult for the driver to obtain these information correctly. Also, when the route designation images 721-1 and 721-2 and the remaining distance image 722 are positioned at the final movement position, it may be considered to hide the vehicle speed display image 704 displayed at the final movement position. However, in this case, the driver can not view the vehicle speed display image 704 and can not know the vehicle speed.
- the display position of the vehicle speed display image 704 displayed at the final movement position The vehicle speed display image 704 is displayed at another position by changing it. Specifically, the image control device 250 moves the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 to the final movement position shown in FIG. 7C, and is displayed at the final movement position. The display position of the vehicle speed display image 704 is changed to the final change position shown in FIG. 7C (the display positions of both images are switched). Thus, the driver can visually recognize the vehicle speed display image 704 to know the vehicle speed even after the route designation images 721-1 and 721-2 and the remaining distance image 722 are positioned at the final movement position.
- the display position of the vehicle speed display image 704 changes upward in the display area 700 as shown in FIGS. 7A to 7C, but if the driver 300 notices this change, the front of the vehicle The driver's awareness and line of sight while watching the fixation point of the vehicle are attracted to the vehicle speed display image 704, which may cause the driver to feel bothersome or interfere with safe driving. Therefore, it is preferable to change the display position of the vehicle speed display image 704 which is a non-superimposed image so slowly that the driver does not notice it.
- the change speed of the display position of the vehicle speed display image 704 is slow, it takes time for the display position of the vehicle speed display image 704 to reach the final change position shown in FIG. It can not be changed quickly to the final change position. Therefore, for example, until the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 reach the final movement position shown in FIG. 7C, the display position of the vehicle speed display image 704 shows the final change shown in FIG. It can not change to the position.
- the time taken for the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 to reach the final movement position shown in FIG. It becomes. Therefore, especially when the vehicle speed of the host vehicle is fast, the display position of the vehicle speed display image 704 before the display positions of the route designation images 721-1 and 721-2 and the remaining distance image 722 reach the final movement position shown in FIG. 7C. Can not be changed to the final change position shown in FIG. 7C.
- the background homogeneity when the background homogeneity is low, the background homogeneity can be high even at a relatively fast change rate (for example, about 20 minutes / second) such that the change in the display position of the image may be recognized by the observer For example, the change in the display position is less likely to be recognized by the observer.
- a relatively fast change rate for example, about 20 minutes / second
- the moving speed at which the visual recognition position of the road surface ahead of the vehicle moves in the display area 700 is faster. That is, as the vehicle speed of the host vehicle 301 is faster, the moving speed of the background of the vehicle speed display image 704 in the display area 700 is faster.
- a pattern such as a white line 310 or a line such as a pedestrian crossing or a letter or symbol indicating a speed limit is usually dotted on a uniform gray asphalt surface. doing.
- the moving speed of the visual recognition position of the design on the road surface that the driver visually recognizes is slow, so the design is easily visually recognized by the driver in distinction from the asphalt surface.
- the road surface visually recognized by the driver that is, the background of the vehicle speed display image 704
- the moving speed of the visual recognition position of the design on the road surface which the driver visually recognizes also becomes fast, so that the design is hard to be recognized visually by the driver.
- the road surface visually recognized by the driver that is, the background of the vehicle speed display image 704 is highly homogeneous such that the asphalt surface and the design are mixed.
- the uniformity of the background of the vehicle speed display image 704 visually recognized by the driver 300 is enhanced, and therefore, the display position of the vehicle speed display image 704 visually recognized to overlap the background is changed.
- the faster the vehicle speed the less likely it will be recognized by the driver. Therefore, if the vehicle speed is high, even if the change speed of the display position of the vehicle speed display image 704 is increased, that is, at a change speed exceeding 1 minute / second to 2 minutes / second, which is the motion speed threshold for the heterogeneous background. Even if there is (for example, about 20 minutes / second), it is difficult for the driver to notice the change in the display position.
- the image control device 250 performs display control so that the change speed of the display position of the vehicle speed display image 704, which is a non-superimposed image, increases as the vehicle speed of the host vehicle 301 increases.
- the route specifying images 721-1 and 721-2 and the remaining distance image 722 are displayed when the visual recognition position of the remaining distance point enters the display area 700.
- the vehicle speed information is acquired from the sensor device 500.
- the image control device 250 executes display control so that the change speed of the display position of the vehicle speed display image 704 which is a non-superimposed image becomes slower as the vehicle speed of the host vehicle 301 becomes slower.
- the image control device 250 When the acquired vehicle speed information is low speed (for example, less than 60 km / h), the image control device 250 performs display control so that the display position of the vehicle speed display image 704 changes in 10 minutes / second, for example.
- the vehicle speed information is low, the road surface recognized by the driver, that is, the background of the vehicle speed display image 704 has relatively low homogeneity, but if it is 10 minutes / second or less, the display position changes An effect that the driver does not notice is sufficiently obtained.
- the image control device 250 executes display control so that the display position of the vehicle speed display image 704 changes in 15 minutes / second, for example.
- the vehicle speed information is low speed, if the change speed of the display position of the vehicle speed display image 704 is 15 minutes / second, the driver is likely to notice the change of the display position, but if the vehicle speed information is high speed, Since the homogeneity of the road surface visually recognized by the driver, that is, the background of the vehicle speed display image 704 is enhanced, an effect of not making the driver aware of the change in the display position is sufficiently obtained even at 15 minutes / second.
- the direction in which the display position of the vehicle speed display image 704 which is a non-superimposed image changes is the vertical direction of the display area 700, but may be, for example, the horizontal direction of the display area 700.
- the change speed of the display position of the vehicle speed display image 704 is used regardless of whether the vehicle speed information is low or high. Later than in the case of the present embodiment.
- the direction in which the display position of the vehicle speed display image 704 changes is a direction along the moving direction in which the visual position of the road surface ahead of the vehicle moves in the display area 700. It has become. While the driver is watching the front of the vehicle while the host vehicle 301 is traveling, the driver continuously sees that the viewing position of the road surface in front of the vehicle regularly moves from the top to the bottom in the display area 700. ing. Therefore, with respect to the movement in accordance with the regularity (movement to move in the display area 700 in the vertical direction), the driver is better than the movement against the regularity (movement in the horizontal direction in the display area 700). It is hard to be recognized.
- Modification 1 a modified example of display control in the present embodiment (hereinafter, this modified example is referred to as “modified example 1”) will be described.
- the route designation images 721-1 and 721-2 and the remaining distance image 722 displayed at the display position of the vehicle speed display image 704 before the change are 2 km ahead as shown in FIGS. 7A to 7C.
- Operation instruction information instructing to turn left at an intersection or the like. Since the information indicated by the route designation images 721-1 and 721-2 and the remaining distance image 722 indicates the operation content to be operated at a considerably later time, the information is compared with the vehicle speed information indicated by the vehicle speed display image 704. And the priority for providing information to the driver is relatively low. Therefore, in the embodiment described above, as shown in FIG.
- the vehicle speed display image 704 with high priority is the route specification image 721-1 and 721 with low priority.
- the display position of the vehicle speed display image 704 is changed upward so as to be displayed on the upper side of the display area 700, that is, closer to the gaze point 710 of the driver than the remaining distance image 722.
- FIG. 7 is an explanatory view showing an image example in which the display position of the image 704 changes.
- the route designation images 721-1 and 721-2 and the remaining distance image 722 displayed at the display position of the vehicle speed display image 704 before the change are 300 m ahead as shown in FIGS. 8A to 8C.
- Operation instruction information instructing to turn left at an intersection or the like. Since the information indicated by the route designation images 721-1 and 721-2 and the remaining distance image 722 'indicates the operation content to be operated at a very near timing, compared with the vehicle speed information indicated by the vehicle speed display image 704. The priority of information provision to the driver is relatively high.
- Modification 2 Next, another modified example of display control in the present embodiment (hereinafter, this modified example is referred to as “modified example 2”) will be described.
- 9A to 9C are explanatory diagrams showing an example of an image in which the display position of the vehicle speed display image 704 changes in the second modification.
- the above-described embodiment and modification 1 are adapted to move the route designation images 721-1 and 721-2 and the remaining distance images 722 and 722 displayed in the upper area of the display area 700 to the final movement position.
- the display position of the vehicle speed display image 704 displayed at the final movement position is changed.
- FIGS. 9A to 9C after the display position of the vehicle speed display image 704 is changed, another display position of the vehicle speed display image 704 before the start of the change is provided.
- An information image 705 (in FIG. 9C, a text image "Let's take a break" is displayed).
- the other provided information image displayed at the display position of the vehicle speed display image 704 before the start of change does not move from another position as in the embodiment described above. Alternatively, it may appear at the display position of the vehicle speed display image 704 before the start of the change.
- the present invention is not limited to the example in which the other provided information image is displayed at the display position of the vehicle speed display image 704 before the start of the change as in the embodiment and the modified examples 1 and 2 described above.
- An example in which the position is changed (an example in which only the display position of the vehicle speed display image 704 changes) may be used.
- the provided information image is superimposed on the scenery in front of the vehicle that the driver directly views through the windshield 302
- a real-time image obtained by imaging the scenery in front of the vehicle by the imaging unit is displayed on a display panel provided instead of the windshield 302, and the real-time image (landscape image in front of the vehicle) in a predetermined display area in the display panel It may be an example of displaying the provided information image superimposed on the image.
- the provided information image is displayed in the predetermined display area 700 set in the traveling direction of the moving body has been described, but the side of the moving body (door It is also possible to display a provided information image by setting a predetermined display area in a window or the like, below, above (a sunroof or the like), backward (a rear window or the like) or the like.
- the display control means is characterized in that the moving speed (vehicle speed) of the moving body is fast.
- the display control is performed such that the change speed of the display position of the at least one provided information image is faster.
- the passenger of the moving object views the provided information image displayed in the predetermined display area while directly or indirectly recognizing the object present around the moving object as the background.
- it is an aspect which displays the image of the object of a mobile body periphery imaged with the imaging means on a predetermined display area with a provision information image, for example.
- the faster the moving speed of the moving body hereinafter referred to as "moving body speed"
- a road surface existing around a mobile body is usually dotted with patterns such as lines, characters, symbols, etc., such as white, on a uniform gray asphalt surface. Therefore, when the moving object speed is low, the moving speed of the visual recognition position of the design on the road surface is slow, so that the design is likely to be visually recognized by the passenger in distinction from the asphalt surface.
- the background of the road surface that is, the provided information image, which the passenger visually recognizes directly or indirectly, has low homogeneity in which the asphalt surface and the pattern are clearly distinguished.
- the moving object speed is high, the moving speed of the visual recognition position of the design on the road surface is high, so that the design is difficult to be visually recognized by the passenger in distinction from the asphalt surface.
- the road surface that the passenger visually recognizes directly or indirectly, that is, the background of the provided information image has high homogeneity as if the asphalt surface and the design were mixed.
- the higher the moving object speed the higher the uniformity of the background seen by the passenger of the moving object. Therefore, the change in the display position of the provided information image to be recognized to overlap the background indicates the moving object velocity. The faster it gets, the less it will be noticed by the passenger. Therefore, if the moving object speed is high, even if the change speed of the display position of the provided information image is increased, it is difficult for the passenger to notice the change of the display position.
- the change speed of the display position of the provided information image can be increased as the moving object speed increases.
- the change speed of the display position is sufficiently slowed so that the change of the display position of the provided information image is not noticed to the passenger, while the moving object speed is provided. It is possible to accelerate the change speed of the display position within a range in which the change of the display position of the information image is not noticed to the passenger and shorten the time to achieve the given purpose of changing the display position.
- the display control means may perform the visual recognition along the vertical direction or the like in which the visual recognition position of an object such as a road surface around the moving object moves in the predetermined display area as the moving object moves. The display control is performed such that the display position of the at least one provided information image displayed on the movement path of the position is changed.
- the visual position of the object existing around the moving body continues to regularly move in the display area 700.
- the change in the display position of the at least one provided information image conforms to the regularity of the movement of the object around the moving object in the background, the change in the display position is more than the case where the regularity is violated Is hard to notice the passenger.
- the change in the display position of the at least one provided information image conforms to the regularity of the movement of the object around the moving object serving as the background, the change of the display position of the at least one provided information image Even if the change speed of the display position is faster, it is difficult for the passenger to notice the change in the display position.
- the upper limit of the change speed is characterized in that it is 20 minutes per second in terms of an angle change speed viewed from the viewpoint of a passenger such as the driver 300 of the moving body.
- the movable body moves on a moving surface such as a road surface
- the predetermined display area 700 has the moving surface existing in the moving object traveling direction. It is characterized in that it is set so as to overlap the position viewed by the passenger of the mobile body.
- the display control means may provide a provided information image (course designation image 721-1, 721-2) different from the at least one provided information image (the vehicle speed display image 704, etc.). And the remaining distance image 722, 722 etc.) is displayed at the display position before the start of change of the at least one provided information image, the display control is performed.
- the display control unit displays the display position of the another provided information image from the predetermined change start position (the upper area of the display area 700, etc.) before the start of the change of the at least one provided information image.
- the other provided information image is displayed at the display position before the start of the change of the at least one provided information image by changing to the lower region of the display area 700 or the like.
- the display control means determines that the priority of provision of information to the passenger of the mobile body is lower in the other provided information image than the at least one provided information image. The display control is performed such that the display position of the at least one provided information image changes in a direction approaching the gaze point of the passenger.
- the display control means may set the priority of provision of information to the passenger of the mobile in the other provided information image more than the at least one provided information image. When it is high, the display control is performed such that the display position of the at least one provided information image changes in a direction away from the gaze point of the passenger.
- the at least one provided information image having a low priority is selected as the one having the high priority.
- the other provided information image with high priority is more easily viewed by the passenger than the at least one provided information image with low priority, and the provided information with high priority is provided to the passenger quickly. can do.
- Image light projection means such as HUD main body 230 for projecting the image light onto the transmission / reflection member so as to display the provided information image on the screen.
- the image light projection means is configured to display the provided information image as a virtual image I in the predetermined display area by the image light to be projected, and the distance from the passenger to the virtual image is 4 m or more It is characterized by being.
- the occupants of a moving vehicle are often focused at a distance. If the distance from the passenger to the virtual image I is 4 m or more, the amount of movement of the eye lens is smaller than in the case of 2 m, which is the conventional general distance. As a result, it is possible to shorten the focus adjustment time to the virtual image I, to recognize early the information provided by the information image provided by the virtual image I, and to reduce the fatigue of the passenger's eye.
- the image light projection means two-dimensionally scans the image light emitted from the light irradiation means such as the light source unit 220 for irradiating the image light by the light scanning means such as the light scanning device 208
- the provided information image is displayed in the predetermined display area by projecting onto the reflection member.
- HUD Device for Vehicle 220 Light Source Unit 230 HUD Main Body 250 Image Control Device 300 Driver 301 Own Vehicle 302 Front Glass 400 Vehicle Navigation Device 500 Sensor Device 700 Display Area 704 Vehicle Speed Display Image 710 Point of View 721 Route Designation Image 722, 722 'Rest Distance image
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Abstract
Description
〔変形例1〕
次に、本実施形態における表示制御の一変形例(以下、本変形例を「変形例1」という。)について説明する。
〔変形例2〕
次に、本実施形態における表示制御の他の変形例(以下、本変形例を「変形例2」という。)について説明する。
(態様A)
移動体周囲の路面等の物体が自車両301等の移動体の運転者300等の搭乗者に視認される所定の表示エリア700に進路指定画像721-1,721-2、残り距離画像722、車速表示画像704等の提供情報画像を表示させるHUD本体230等の表示手段と、車速表示画像704等の少なくとも1つの提供情報画像の表示位置が前記所定の表示エリアで変化するように前記表示手段を制御する表示制御を実行する画像制御装置250等の表示制御手段とを備えた自動車用HUD装置200等の情報提供装置において、前記表示制御手段は、前記移動体の移動速度(車速)が速いほど、前記少なくとも1つの提供情報画像の表示位置の変化速度が速くなるように、前記表示制御を実行することを特徴とする。
(態様B)
前記態様Aにおいて、前記表示制御手段は、移動体の移動に伴って前記所定の表示エリア内を移動体周囲の路面等の物体の視認位置が移動する上下方向等の方向に沿って、該視認位置の移動経路上に表示される前記少なくとも1つの提供情報画像の表示位置が変化するように、前記表示制御を実行することを特徴とする。
(態様C)
前記態様A又はBにおいて、前記変化速度の上限は、前記移動体の運転者300等の搭乗者の視点から見た角度変化速度に換算して20分毎秒であることを特徴とする。
(態様D)
前記態様A~Cの何れかの態様において、前記移動体は、路面等の移動面上を移動するものであり、前記所定の表示エリア700は、移動体進行方向に存在する前記移動面が前記移動体の搭乗者に視認される位置に重なるように設定されていることを特徴とする。
(態様E)
前記態様A~Dの何れかの態様において、前記表示制御手段は、前記少なくとも1つの提供情報画像(車速表示画像704等)とは別の提供情報画像(進路指定画像721-1,721-2及び残り距離画像722,722'等)を、該少なくとも1つの提供情報画像の変化開始前の表示位置に表示させる前に、前記表示制御を実行することを特徴とする。
(態様F)
前記態様Eにおいて、前記表示制御手段は、前記別の提供情報画像の表示位置を所定の変化開始位置(表示エリア700の上部領域等)から前記少なくとも1つの提供情報画像の変化開始前の表示位置(表示エリア700の下部領域等)へ変化させることにより、該別の提供情報画像を該少なくとも1つの提供情報画像の変化開始前の表示位置に表示させることを特徴とする。
(態様G)
前記態様E又はFにおいて、前記表示制御手段は、前記移動体の搭乗者への情報提供の優先度が前記少なくとも1つの提供情報画像よりも前記別の提供情報画像の方が低い場合には、該少なくとも1つの提供情報画像の表示位置が搭乗者の注視点に近づく向きに変化するように、前記表示制御を実行することを特徴とする。
(態様H)
前記態様E~Gの何れかの態様において、前記表示制御手段は、前記移動体の搭乗者への情報提供の優先度が前記少なくとも1つの提供情報画像よりも前記別の提供情報画像の方が高い場合には、該少なくとも1つの提供情報画像の表示位置が搭乗者の注視点から遠ざかる向きに変化するように、前記表示制御を実行することを特徴とする。
(態様I)
前記態様A~Hの何れかの態様において、前記表示手段として、移動体周囲の物体がフロントガラス302等の透過反射部材を介して前記移動体の搭乗者に視認される前記所定の表示エリア700に提供情報画像を表示させるように、該透過反射部材へ画像光を投射するHUD本体230等の画像光投射手段を用いることを特徴とする。
(態様J)
前記態様Iにおいて、前記画像光投射手段は、投射する画像光によって前記提供情報画像を虚像Iとして前記所定の表示エリア内に表示させるものであり、前記搭乗者から前記虚像までの距離が4m以上であることを特徴とする。
(態様K)
前記態様I又はJにおいて、前記画像光投射手段は、画像光を照射する光源ユニット220等の光照射手段から照射した画像光を光走査装置208等の光走査手段により2次元走査して前記透過反射部材へ投射することにより、前記所定の表示エリア内に前記提供情報画像を表示させるものであることを特徴とする。
220 光源ユニット
230 HUD本体
250 画像制御装置
300 運転者
301 自車両
302 フロントガラス
400 車両ナビゲーション装置
500 センサ装置
700 表示エリア
704 車速表示画像
710 注視点
721 進路指定画像
722,722' 残り距離画像
Claims (13)
- 移動体の外部の表示領域に虚像を表示する情報提供装置であって、
提供情報画像を虚像として前記表示領域に表示させる表示手段と、
前記提供情報画像の表示位置を前記表示領域内で変化させるように、前記表示手段を制御する表示制御手段と、を有し、
前記表示制御手段は、前記移動体の移動速度が速いほど、前記提供情報画像の表示位置の変化速度が速くなるように、前記表示手段を制御することを特徴とする情報提供装置。 - 前記提供情報画像は、2つの提供情報画像を含み、
前記表示制御手段は、
一方の前記提供情報画像の表示位置の変化速度と、他方の前記提供情報画像の表示位置の変化速度とが異なるように、前記表示手段を制御し、
一方の前記提供情報画像の表示位置の変化速度及び他方の前記提供情報画像の表示位置の変化速度のうち遅い方の変化速度が、前記移動体の移動速度が速いほど速くなるように、前記表示手段を制御することを特徴とする請求項1に記載の情報提供装置。 - 前記表示制御手段は、一方の前記提供情報画像の表示位置を第1方向に変化させると共に、他方の前記提供情報画像の表示位置を前記第1方向とは異なる第2方向に変化させるように、前記表示手段を制御することを特徴とする請求項2に記載の情報提供装置。
- 一方の前記提供情報画像は情報提供の優先度の低い低優先度提供情報画像であり、他方の前記提供情報画像は情報提供の優先度の高い高優先度提供情報画像であり、
前記表示制御手段は、前記高優先度提供情報画像の表示位置が前記低優先度提供情報画像の表示位置と入れ替わるように、前記表示手段を制御することを特徴とする請求項3に記載の情報提供装置。 - 前記第2方向は、前記移動体の搭乗者の注視点に近づく方向であることを特徴とする請求項4に記載の情報提供装置。
- 前記第1方向は、前記移動体の搭乗者の注視点から遠ざかる方向であることを特徴とする請求項5に記載の情報提供装置。
- 前記表示制御手段は、前記低優先度提供情報画像が、前記高優先度提供情報画像の変化開始前の表示位置に表示されるように、前記表示手段を制御することを特徴とする請求項4乃至6の何れか一項に記載の情報提供装置。
- 前記提供情報画像は非重畳画像であることを特徴とする請求項1に記載の情報提供装置。
- 前記表示制御手段は、前記提供情報画像の表示位置を変化させ、前記提供情報画像の変化開始前の表示位置に他の提供情報画像が表示されるように、前記表示手段を制御することを特徴とする請求項1に記載の情報提供装置。
- 前記変化速度の上限は、前記移動体内の基準点から見た角度変化速度に換算して20分毎秒であることを特徴とする請求項1乃至9の何れか一項に記載の情報提供装置。
- 前記表示手段として、前記表示領域に透過反射部材を介して前記提供情報画像を表示させるように、前記透過反射部材へ画像光を投射する画像光投射手段を用いることを特徴とする請求項1乃至10の何れか一項に記載の情報提供装置。
- 前記移動体内の基準点から前記虚像までの距離が4m以上であることを特徴とする請求項11に記載の情報提供装置。
- 前記画像光投射手段は、画像光を照射する光照射手段から照射した画像光を光走査手段により2次元走査して前記透過反射部材へ投射することにより、前記表示領域内に前記提供情報画像を表示させることを特徴とする請求項11又は12に記載の情報提供装置。
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JP2021020660A (ja) * | 2019-07-25 | 2021-02-18 | 株式会社デンソー | 表示デバイス制御装置 |
JP7156229B2 (ja) | 2019-07-25 | 2022-10-19 | 株式会社デンソー | 表示デバイス制御装置 |
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JPWO2017138527A1 (ja) | 2019-01-17 |
EP3415373B1 (en) | 2020-10-07 |
EP3415373A4 (en) | 2019-02-20 |
US20180350236A1 (en) | 2018-12-06 |
US10679496B2 (en) | 2020-06-09 |
EP3415373A1 (en) | 2018-12-19 |
JP6699675B2 (ja) | 2020-05-27 |
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