JP2018192999A - Visual guidance device - Google Patents

Abstract

To provide a visual guidance device that allows a driver to recognize the whole information presented by a plurality of display parts.SOLUTION: A visual guidance device includes: a first display part 40; a second display part 50; and a display body 60 displayed while moving between the first display part 40 and the second display part 50. A blank period where the light of the display body 60 is turned off is provided when the display body moves between the first display part 40 and the second display part 50.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a line-of-sight guidance device for guiding the line of sight of a driver such as a vehicle.

  2. Description of the Related Art Conventionally, a technique for presenting various information such as battery voltage, section travel distance, total travel distance, engine lubricating oil pressure, and the like to an occupant using a display device provided in a vehicle compartment is known (for example, Patent Document 1). In the display device disclosed in Patent Document 1, there has been proposed a method of presenting information that can be surely recognized without fail when a plurality of warning information to be warned promptly occur at the same time.

Japanese Patent Laid-Open No. 11-2107030

  In the related art, only one display unit is provided. However, even when the apparatus includes a plurality of spaced apart display units, it is desired that the driver recognizes all the information presented by the plurality of display units. In this case, it is necessary to appropriately guide the driver's line of sight in order to visually recognize the display contents of the plurality of display units.

  Accordingly, an object of the present invention made in view of the above problems is to provide a line-of-sight guidance device that allows a driver to recognize all information presented by a plurality of display units.

In order to solve the above problems, a line-of-sight guidance apparatus according to an embodiment of the present invention is
A first display unit;
A second display;
A display body displayed by moving between the first display unit and the second display unit;
With
A blank period in which the display body is turned off when moving between the first display section and the second display section is provided.

  According to the line-of-sight guidance device according to the present invention, the driver can recognize all the information presented by the plurality of display units.

It is a block diagram of a gaze guidance device concerning one embodiment of the present invention. It is a figure which shows arrangement | positioning of a 1st display part and a 2nd display part. It is a figure which shows the example by which the display body is displayed on the 1st display part and the 2nd display part. It is a time chart which shows the display and non-display of a display body. It is a time chart which shows the luminance change of a display body. It is a flowchart which shows operation | movement of the gaze guidance apparatus which concerns on one Embodiment of this invention. It is a figure which shows the other example of a display body.

  Embodiments of the present invention will be described below.

(Embodiment)
FIG. 1 is a block diagram of a line-of-sight guidance device according to an embodiment of the present invention. The line-of-sight guidance device 1 according to an embodiment of the present invention includes an information acquisition unit 10, a storage unit 20, a control unit 30, a first display unit 40, and a second display unit 50.

  The information acquisition unit 10 acquires information related to the traveling environment of the vehicle. As described below, the information related to the traveling environment of the vehicle includes environmental information around the vehicle, information related to the current position of the host vehicle, information related to the vehicle status, and the like.

  The information acquisition unit 10 includes an appropriate sensor such as a camera, a rider (LIDAR: Light Detection And Ranging), and a speed sensor. The information acquisition unit 10 may include a suitable sensor that constitutes a traffic sign recognition (TSR) system or adaptive cruise control (ACC).

  The information acquisition unit 10 determines the traffic situation such as the traffic participant's characteristics, position, moving speed, etc., road surface condition, distance from the white line of the road, road type, number of lanes, road sign (speed limit), etc. Detect signal conditions and obtain environmental information around the vehicle. The information acquisition unit 10 may acquire information on at least one of the front vehicle situation, the rear vehicle situation, the parallel running vehicle situation, and the crossing vehicle situation. In addition, the information acquisition unit 10 may acquire environmental information around the vehicle, such as information related to the communication state with the external network, information related to the situation of moving objects in the vicinity, external server information, and POI (Point Of Interest) information. Good.

  The information acquisition unit 10 may include a navigation system. In this case, the information acquisition unit 10 calculates the current position of the host vehicle indicated by the latitude, longitude, altitude, inclination, lane position, etc. of the vehicle. Moreover, the information acquisition part 10 may acquire the information regarding the own vehicle position condition, such as temperature, humidity, the weather, brightness, and transparency in the present position of the own vehicle.

  In addition to this, the information acquisition unit 10 may acquire information related to various driving environments of the vehicle. The information acquisition part 10 may acquire the information regarding various vehicle situations, for example using the controller area network (CAN) which is one communication system in a vehicle-mounted network. For example, the information acquisition unit 10 includes the vehicle speed, the accelerator state, the brake state, the clutch state, the winker state, the gear state, the wiper state, the door mirror state, the seat state, the audio state, the warning state, the light state, the steering state, and the idle state. Information on the vehicle status such as the air conditioner state, the seat belt state, and the driving operation level may be acquired.

  The information acquisition unit 10 may also acquire information related to the driver. For example, the information acquisition unit 10 may acquire information related to the driver's state such as the driver's face direction, line of sight, and blinking state.

  The above information acquired by the information acquisition unit 10 is output to the control unit 30. The above information acquired by the information acquisition unit 10 may be stored in the storage unit 20 as necessary.

  The storage unit 20 can be configured by a semiconductor memory, a magnetic memory, or the like. The storage unit 20 stores the above-described various information, a program for operating the line-of-sight guidance device 1, and the like. The storage unit 20 also functions as a work memory.

  The control unit 30 is a processor that controls and manages the entirety of the visual guidance device 1 including each functional block of the visual guidance device 1. The control unit 30 includes a processor such as a CPU (Central Processing Unit) that executes a program that defines a control procedure, and the program is stored in the storage unit 20, for example. For example, the control unit 30 refers to various information stored in the storage unit 20 as necessary. Specifically, the control unit 30 refers to the information related to the traveling environment of the vehicle. The control unit 30 performs control related to display by the first display unit 40 and the second display unit 50 so as to appropriately display necessary information.

  The 1st display part 40 is comprised by arbitrary display apparatuses. In the present embodiment, the first display unit 40 will be described as a head-up display (HUD) type display device. The head-up display type display device has a light emitting unit that generates display information as display light, reflects the generated display light toward an observer such as a driver, and displays a virtual image through the front windshield. To do.

  The 2nd display part 50 is comprised by arbitrary display apparatuses. In the present embodiment, the second display unit 50 will be described as a meter display device. The meter display device is disposed on the instrument panel and displays information by a liquid crystal display or the like. The meter display device may be a touch panel display or a display that cannot be touched.

  FIG. 2 is a diagram illustrating the positions of the first display unit 40 and the second display unit 50. As shown in FIG. 2, in the present embodiment, since the first display unit 40 is a head-up display type display device, it is located at a part of the front windshield. On the other hand, in the present embodiment, since the second display unit 50 is a meter display device, the second display unit 50 is located near the back side of the driver's handle. As shown in FIG. 2, the display positions by the first display unit 40 and the second display unit 50 are arranged at a predetermined distance from each other in the vertical direction, so that only one display unit is visually recognized and display information on the other display unit is displayed. May be missed. Therefore, the line-of-sight guidance device 1 according to the present embodiment uses a display body 60 for guiding the driver's line of sight.

  FIG. 3 is a diagram illustrating an example in which the control unit 30 of the line-of-sight guidance apparatus 1 displays the display body 60 on the first display unit 40 and the second display unit 50. The display body 60 shown in FIG. 3 has a circular shape and a design with blurred edges. By doing in this way, the display body 60 and other presentation information can be clearly distinguished, the driver can be made to grasp the display body 60 appropriately, and a certain level of attention can be drawn.

  FIG. 3A shows an example in which the display body 60 is displayed on the first display unit 40. As shown in FIG. 3A, the display body 60 is displayed in a predetermined area such as the upper right in the display screen of the first display unit 40. The predetermined area is not limited to the upper right, and may be an arbitrary place. Here, the display body 60 is displayed in an area that does not overlap with the presentation information (vehicle speed information 41, traveling direction guidance information 42, etc.) by the first display unit 40.

  FIG. 3B shows an example in which the display body 60 is displayed on the second display unit 50. As shown in FIG. 3B, the display body 60 is displayed in a predetermined area such as the upper right in the display screen of the second display unit 50. The predetermined area is not limited to the upper right, and may be an arbitrary place. Here, the display body 60 is displayed in a region that does not interfere with the presentation information (speed meter 51, vehicle peripheral information 52, etc.) provided by the second display unit 50.

  Here, the display body 60 is moved between the first display unit 40 and the second display unit 50 and displayed. In the present embodiment, “moving between the first display unit 40 and the second display unit 50 for display” means that the display body 60 is displayed on the first display unit 40, and the second display unit 50 displays From the state where the display body 60 is not displayed (the display state in FIG. 3A, hereinafter referred to as the first display state), the display body 60 is displayed on the second display unit 50, and the first display Transition to a state in which the display body 60 is not displayed in the unit 40 (the display state in FIG. 3B and hereinafter referred to as a second display state), and transition from the second display state to the first display state It means to do. The display body 60 is moved and displayed between the first display unit 40 and the second display unit 50 to guide the driver's line of sight, and any of the first display unit 40 and the second display unit 50 is displayed. Information can also be properly grasped by the driver.

  Moreover, when the display body 60 moves between the 1st display part 40 and the 2nd display part 50, the blank period when the display body 60 is light-extinguished is provided. FIG.3 (c) has shown the display mode of the 1st display part 40 and the 2nd display part 50 in a blank period, and the display body 60 is not displayed during the blank period. The blank period is provided both when the state transition is made from the first display state to the second display state and when the state transition is made from the second display state to the first display state.

For example, during automatic operation, the display body 60 moves between the first display unit 40 and the second display unit 50 at a predetermined interval. FIG. 4 is a time chart showing display and non-display of the display body 60. As shown in FIG. 4, first, for example, on the first display unit 40, the display body 60 is displayed for a predetermined display time (T _on ). The display mode at this time corresponds to FIG. After that, a blank period (T _off ) is provided. The display mode at this time corresponds to FIG. After the blank period, the second display unit 50 displays the display body 60 for a predetermined display time (T _on ). The display mode at this time corresponds to FIG. After that, a blank period is provided, and the display body 60 is displayed on the first display unit 40 for a predetermined display time (T _on ) after the blank period. Thus, by repeating the movement between the first display unit 40 and the second display unit 50 at a predetermined interval and displaying the display body 60, the first display unit 40 and the second display unit 50 are It is possible to prompt the driver to recognize the display information of both display units.

For example, _Ton is about 1.5 seconds and _Toff is about 0.5 seconds. In this case, the predetermined interval is about 2 seconds. By setting the predetermined interval to about 2 seconds, it is possible to appropriately prevent the driver from continuing to look at one display unit while securing the time required to grasp the displayed information. Information can be provided. Note that the lengths of _Ton and _Toff and the predetermined intervals are not limited to these, and can be set as appropriate.

Further, when the display body 60 is turned off, that is, when the display body 60 is turned off from the display state and shifts to the blank period, the luminance of the display body 60 is gradually decreased. FIG. 5 is a time chart showing a change in luminance of the display body 60. In Figure 5, the lighting time of the display 60 and T _s, lit ends (at the start of the blank period) is set to T _e. As shown in FIG. 5, a time change start time (T _c1 ) is provided during the display period (T _on ) of the display body 60. And the brightness | luminance of the display body 60 is reduced gradually after the time change start. Specifically, the control unit 30 performs control so that the luminance is gradually decreased at a constant change rate from the time change start time (T _c1 ) to the blank period start time (T _e ). As shown in FIG. 5, the luminance of the display body 60 is changed even at the start of the lighting time (between T _s and T _c2 ), but the change rate of the luminance is set high. That is, the speed of fade-in (absolute value of the time rate of change of brightness between the T _s T _c2), higher than the speed of fade out (the absolute value of the time rate of change of brightness between the T _c1 T _e) ing. In other words, the fade-in speed when the display body 60 is turned on is faster than the fade-out speed when the display body 60 is turned off. In this way, the brightness is gradually changed from the display of the display body 60 toward the start of the blank period (T _e ), and the brightness is sharply increased when re-lighting in another place, thereby displaying in the blank period. The search operation (scan) by the driver of the body 60 is promoted, and the driver's gaze guidance effect can be enhanced.

  Next, the operation of the line-of-sight guidance apparatus 1 according to one embodiment of the present invention will be described with reference to the flowchart shown in FIG.

  First, the control unit 30 displays the display body 60 on the first display unit 40 (step S10).

Next, the control unit 30 gradually decreases the luminance of the display body 60 displayed on the first display unit 40 (step S20). Specifically, the control unit 30 gradually decreases the luminance from the start of time change (T _c1 ) to the start of the blank period (T _e ).

Subsequently, the control unit 30 does not display during the blank period (T _off ) (step S30).

Subsequently, the control unit 30 displays the display body 60 on the second display unit 50 (step S40). Subsequently, the control unit 30 gradually decreases the luminance of the display body 60 displayed on the second display unit 50 (step S50), and hides it during the blank period (T _off ) (step S60). It returns to step S10 after step S60, and repeats step S10 to step S60 after that.

  Thus, according to the line-of-sight guidance device 1 according to an embodiment of the present invention, the display body 60 is moved and displayed between the first display unit 40 and the second display unit 50. In addition, the display body 60 is displayed on either the first display unit 40 or the second display unit 50 at a certain time. That is, they are not displayed on the first display unit 40 and the second display unit 50 at the same time. Therefore, the driver's line of sight can be guided by prompting the driver to view the display body 60. Thereby, a driver | operator can be made to recognize all the information which a some display part shows.

  Furthermore, the line-of-sight guidance device 1 according to an embodiment of the present invention provides a blank period during which the display body 60 is turned off when the display body 60 moves between the first display unit 40 and the second display unit 50. Provided. Therefore, the driver | operator's operation | movement which searches the display body 60 in a blank period can be encouraged, and the effect of a driver | operator's eyes | visual_axis guidance can be improved.

  The line-of-sight guidance apparatus 1 may gradually decrease the luminance of the display body 60 while moving the display body 60 in the direction of the display unit that is the movement destination. For example, when the display body 60 is moved from the first display section 40 to the second display section 50, the luminance may be gradually decreased while moving the display body 60 downward. Similarly, for example, when the display body 60 is moved from the second display unit 50 to the first display unit 40, the luminance may be gradually decreased while the display body 60 is moved upward. By doing in this way, it can grasp | ascertain easily the place of the display part to which the display body 60 moves to another display part, and is moved, and can improve the effect of a driver | operator's gaze | guidance guidance more. it can. In this embodiment, an example in which there are two display units (the first display unit 40 and the second display unit 50) has been described. However, the number of display units is not limited to this, and the number of display units may be three or more. Good. For example, left and right electronic mirrors and a center display may be provided as the display unit. Similarly in this case, the display body 60 can be displayed on each display unit, and the driver's line of sight can be guided. When there are three or more display units, the display unit 60 is moved to any of the plurality of display units by gradually reducing the luminance of the display unit 60 while moving the display unit 60 in the direction of the destination display unit. It can be easily grasped whether it is displayed.

  In the case of manual driving, the line-of-sight guidance device 1 may move the display body 60 to a display unit displaying information that should be noted by the driver. For example, when the approaching vehicle from the rear side, the warning of the vehicle state, and the like are displayed on the second display unit 50, the display body 60 may be moved to the second display unit 50 and displayed. By doing in this way, the display part which is displaying the information which should be careful can be specified easily, and the information which should be careful of a driver | operator can be grasped | ascertained.

In the present embodiment, the example in which the luminance is changed at a constant change rate from the time when the display body 60 is turned on to the time when the blank period starts (T _e ) is shown, but the present invention is not limited thereto. During this period, the luminance change rate may not be constant, the luminance change rate may be changed with time, or the luminance may be changed stepwise.

In the present embodiment, the luminance is continuously changed at the start of the lighting time (between T _s and T _c2 ), but the present invention is not limited to this. For example, the luminance may be changed discontinuously at the start of the lighting time. In this case, the luminance is set to a predetermined value at T _s .

  In the present embodiment, the display body 60 has a circular shape and an example of a design with a blurred edge, but is not limited thereto. For example, the display body 60 may have a polygonal shape. Alternatively, the display body may have a personified shape. FIG. 7 shows an example using an anthropomorphic display body 60b. As shown in FIG. 7, the display body 60b has a part 61 corresponding to the eyes and a part 62 corresponding to the mouth. That is, the display body 60b has a shape imitating the face of a person or the like. The human brain has a characteristic of sensitively reacting to the shape imitating the face such as eyes and mouth, and the processing speed is fast. By making the display body 60b a shape simulating a face, it is possible to make the driver grasp the display body 60b instantaneously by utilizing such characteristics of the brain.

  Moreover, when using the display body 60b, you may use the display body 60b for transmission of the information to a driver | operator. That is, information may be transmitted to the driver by appropriately changing the expression of the display body 60b. For example, the expression of the display body 60b is changed to a happy face, a laughing face, a sad face, a troubled face, etc. according to the content of information presented to the driver. Information to be presented to the driver is displayed adjacent to the display body. The information may be presented in the form of a balloon from the display body 60b. In this case, the shape of the mouth portion of the display body may be changed over time in order to display the display body 60 as if it is turned.

  In addition, when displaying information that should be noted by the driver, at least one of the expression or size of the display body 60 may be changed. For example, make the expression a little angry or impatient. Alternatively, the size of the display body 60 is increased. Alternatively, the color is changed to red. By changing the display mode of the display body 60 in this way, the driver can sense the change sensitively and can quickly grasp the information displayed by the display unit.

  By using the anthropomorphic display body 60b as described above, it is possible to promote gaze guidance by the display body 60b. Further, a certain degree of trust can be generated for the display body 60b, and an effect of enhancing the sense of trust and persuasiveness of the presented information can be expected as compared with the case where information is simply presented.

  Here, in order to function as the line-of-sight guidance apparatus 1, a computer can be suitably used. Such a computer stores a program describing processing contents for realizing each function of the line-of-sight guidance apparatus 1. This program can be realized by reading out and executing this program by a central processing unit (CPU) of the computer.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each means, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of means, steps, etc. can be combined or divided into one. .

DESCRIPTION OF SYMBOLS 1 Line-of-sight guidance apparatus 10 Information acquisition part 20 Memory | storage part 30 Control part 40 1st display part 41 Vehicle speed information 42 Guidance information 50 2nd display part 51 Speedometer 52 Vehicle periphery information 60, 60b Display body 61 Site | part equivalent to 62 The part corresponding to

Claims (9)

A first display unit;
A second display;
A display body displayed by moving between the first display unit and the second display unit;
With
A line-of-sight guidance apparatus that provides a blank period during which the display body is turned off when moving between the first display unit and the second display unit.   The line-of-sight guidance device according to claim 1, wherein the blank period is about 0.5 seconds.   The line-of-sight guidance device according to claim 1 or 2, wherein the brightness of the display body is gradually reduced when the display body is turned off.   The line-of-sight guidance apparatus according to claim 3, wherein the luminance of the display body is gradually reduced while moving the display body in a direction of a display unit that is a movement destination.   The line-of-sight guidance device according to any one of claims 1 to 4, wherein a fade-in speed when the display body is turned on is faster than a fade-out speed when the display body is turned off.   The line-of-sight guidance device according to any one of claims 1 to 5, wherein the display body moves between the first display unit and the second display unit at predetermined intervals during automatic operation.   The line-of-sight guidance device according to claim 6, wherein the predetermined interval is about 2 seconds.   The line-of-sight guidance device according to any one of claims 1 to 5, wherein the display body moves to a display unit that displays information to be noted by a driver during manual driving.   The line of sight guidance device according to any one of claims 1 to 8, wherein the display body is a design with a blurred edge.

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