JP6104127B2 - Display image generation apparatus and display image generation method - Google Patents

Description

  The present invention relates to a technique for generating a display image of a meter cluster of a vehicle.

  Some vehicle meter clusters are equipped with a display screen in addition to meters such as speedometers and tachometers, and warning lights. On the display screen, for example, a map around the vehicle position is displayed. The warning light gives a warning regarding the state of the vehicle, for example, that the door is in an unlocked state or that the remaining amount of gasoline is small.

  Such a meter cluster has a problem that when a warning light is provided in the vicinity of the display screen, the user is attracted attention to the display image on the display screen, and the recognition degree of the warning light is lowered.

  In order to solve this problem, the meter cluster disclosed in Patent Document 1 is designed to make the warning light stand out by controlling the hue of the display image, such as making the display image monochrome when the warning light is turned on. ing.

JP 2007-118892 A

  However, according to the technique of Patent Document 1, there is a problem that design restrictions occur on the color tone of the display image. In addition, further improvement in the visibility of warning lights has been demanded.

  Therefore, in view of the above-described problems, an object of the present invention is to improve the recognition degree of lighting of a warning light in a meter cluster having a warning light and an image display unit.

The display image generation device of the present invention is a display image generation device that generates a display image in an image display unit of a meter cluster of a vehicle having a warning light and an image display unit. A display image generation unit that generates a display image that is displayed by superimposing a warning icon that notifies the lighting of the lamp on the base image, and the display image generation unit is positioned with respect to a warning light that is lit from among the warning lights that are not lit A non-warning icon representing a non-target warning light selected based on the relationship is generated and displayed on the base image, and the positional relationship between the warning icon and the non-warning icon in the display image is the same as that of the lit warning light. that corresponds to the positional relationship between the object outside the warning light.

The display image generation method of the present invention is a display image generation method for generating a display image in an image display section of a meter cluster of a vehicle having a warning lamp and an image display section, and (a) when the warning lamp is lit. A non-warning icon that represents a non-target warning light selected based on the positional relationship between a warning icon that notifies the lighting of the warning light and a warning light that is lit from non-lighting warning lights is displayed superimposed on the base image. comprising the step of generating a display image, the positional relationship between the warning icon and a non-warning icon in the display image, that corresponds to the positional relationship between the warning light and the non-target warning lamp during lighting.

The display image generation device of the present invention is a display image generation device that generates a display image in an image display unit of a meter cluster of a vehicle having a warning light and an image display unit. A display image generation unit that generates a display image that is displayed by superimposing a warning icon that notifies the lighting of the lamp on the base image, and the display image generation unit is positioned with respect to a warning light that is lit from among the warning lights that are not lit A non-warning icon representing a non-target warning light selected based on the relationship is generated and displayed on the base image, and the positional relationship between the warning icon and the non-warning icon in the display image is the same as that of the lit warning light. that corresponds to the positional relationship between the object outside the warning light. Therefore, the user can easily recognize the lighting of the warning light by visually recognizing the warning icon. Further, the correspondence between the warning icon and the lit warning light is visually easy to understand, and the visibility of the warning display is improved.

The display image generation method of the present invention is a display image generation method for generating a display image in an image display section of a meter cluster of a vehicle having a warning lamp and an image display section, and (a) when the warning lamp is lit. A non-warning icon that represents a non-target warning light selected based on the positional relationship between a warning icon that notifies the lighting of the warning light and a warning light that is lit from non-lighting warning lights is displayed superimposed on the base image. comprising the step of generating a display image, the positional relationship between the warning icon and a non-warning icon in the display image, that corresponds to the positional relationship between the warning light and the non-target warning lamp during lighting. Therefore, the user can easily recognize the lighting of the warning light by visually recognizing the warning icon. Further, the correspondence between the warning icon and the lit warning light is visually easy to understand, and the visibility of the warning display is improved.

1 is a block diagram illustrating a configuration of a display image generation device according to Embodiment 1. FIG. It is a figure which shows the structure of a meter cluster. 4 is a flowchart illustrating an operation of the display image generation device according to the first embodiment. 6 is a diagram illustrating an operation of the display image generation device according to Embodiment 1. FIG. 6 is a diagram illustrating an operation of the display image generation device according to Embodiment 1. FIG. 4 is a flowchart illustrating an operation of the display image generation device according to the first embodiment. 6 is a diagram illustrating an operation of a display image generation device according to Embodiment 2. FIG. It is a figure which shows the urgent level of a warning light, and the display mode of a warning icon. 10 is a flowchart illustrating an operation of the display image generation device according to the second embodiment. FIG. 10 is a diagram illustrating an operation of a display image generation device according to a modification of the second embodiment. FIG. 10 is a diagram illustrating an operation of a display image generation device according to Embodiment 3. FIG. 10 is a diagram illustrating an operation of a display image generation device according to a modification of the third embodiment.

<A. Embodiment 1>
<A-1. Configuration>
FIG. 1 is a block diagram illustrating a configuration of a display image generation apparatus 100 according to the first embodiment. The display image generation device 100 is a device that generates a display image of the meter cluster 20 of the vehicle shown in FIG.

  FIG. 2 is a configuration diagram of the meter cluster 20. In addition to the image display unit 21, the meter cluster 20 includes a warning lamp 22 that displays a warning regarding the state of the vehicle, and a mechanical meter 23. The image display unit 21 is a display such as a liquid crystal panel. FIG. 2 shows a charger warning light indicating that the battery is not charged as an example of the warning light 22. Since the warning light 22 is provided in the vicinity of the image display unit 21, the user is not attracted attention to the display image of the image display unit 21 and may not recognize the lighting of the warning light. Therefore, in the display image generating apparatus 100 according to the first embodiment, as shown in FIG. 2A, when the warning lamp 22 is turned on, a warning object 22A that notifies the lighting is superimposed on the display image of the image display unit 21. indicate. Thereby, the user can recognize the lighting of the warning light 22 through visual recognition of the warning object 22A. FIG. 2B is a comparative example showing a case where the warning object 22A is not displayed when the warning light 22 is turned on.

  In FIG. 1, the display image generation apparatus 100 includes an operation input unit 1, an in-vehicle LAN (Local Area Network) interface unit 2, a drawing object data storage unit 3, a display content determination unit 4, and a display image generation unit 5. . The display image generation unit 5 is connected to the image display unit 21 of the meter cluster 20.

  The operation input unit 1 is an input interface of the display image generation device 100 and receives a user operation. The operation input unit 1 is configured by, for example, a mechanical or electronic switch, and may be configured by a remote controller that is separate from the display image generation device 100.

  The in-vehicle LAN interface unit 2 is connected to the in-vehicle LAN, and acquires vehicle position information, travel information such as vehicle speed, and warning information. Here, the warning information is information that warns the state of the vehicle, for example, that the door is in an unlocked state or that the remaining amount of gasoline is small.

  The drawing object data storage unit 3 includes various drawing objects necessary for generating a display image of the image display unit 21 such as map data for generating a map and a warning object 22A (see FIG. 2A). Stores data. Further, warning lamp position information indicating the positional relationship between the image display unit 21 and the warning lamp 22 is stored. The drawing object data storage unit 3 includes a storage medium such as a hard disk drive (HDD) or a secure digital (SD) memory. The display image generating apparatus 100 may not be provided with the drawing object data storage unit 3 and may be configured to acquire drawing object data from an external server or the like as necessary.

  The display content determination unit 4 acquires user operation information from the operation input unit 1, acquires vehicle position information and warning information from the in-vehicle LAN interface unit 2, and determines a display image to be generated based on these.

  The display image generation unit 5 includes a base image generation unit 6, a warning object generation unit 7, and an image composition unit 8, and generates a display image in response to an instruction from the display content determination unit 4. The base image generation unit 6 obtains necessary drawing object data from the drawing object data storage unit 3, and generates a base image such as a vehicle position peripheral view by combining the drawing objects. The warning object generation unit 7 generates a warning object 22A when the warning light 22 is turned on. The warning object 22A is generated by generating a warning icon 22B from the drawing object data stored in the drawing object data storage unit 3 and combining the warning icon 22B with a background image 22C having a single color or a different hue from the base image. The image combining unit 8 combines the base image and the warning object 22A to generate a display image. The display image generated by the image composition unit 8 is output to the image display unit 21 and displayed on the display screen of the image display unit 21.

<A-2. Operation>
FIG. 3 is a flowchart showing the operation of the display image generating apparatus 100. Hereinafter, the operation of the display image generating apparatus 100 after the power is turned on will be described with reference to FIG.

  When the power is turned on, the display image generating apparatus 100 generates a base image (step S1). Specifically, the base image is generated according to the user operation input from the operation input unit 1. For example, when generating a vehicle position peripheral view as a base image, the display content determination unit 4 acquires vehicle position information from the in-vehicle LAN interface unit 2 and outputs the vehicle position information to the display image generation unit 5. Then, the base image generation unit 6 acquires drawing object data from the drawing object data storage unit 3 based on the position information, and generates a vehicle position peripheral view.

  Next, the display content determination unit 4 determines whether or not the warning lamp 22 is turned on (step S2). If the in-vehicle LAN interface unit 2 has not received the warning information, the display content determination unit 4 determines that the warning lamp 22 is not lit. At this time, the warning object generation unit 7 sets the transparent image as a warning object (step S3). Next, the image composition unit 8 composes the base image and the warning object (step S6). Here, since the warning object is a transparent image, the image synthesized in step S6 is the same as the base image.

  If the in-vehicle LAN interface unit 2 receives the warning information in step S2, the display content determination unit 4 determines that the warning lamp 22 is lit. At this time, the warning object generation unit 7 refers to the drawing object data storage unit 3 and generates a warning icon 22B (step S4). The drawing object data of the warning icon 22B is stored in the drawing object data storage unit 3, and the warning icon 22B has the same graphic as the warning lamp 22. Next, the warning object generation unit 7 combines the warning icon 22B and the monochrome background image 22C to generate the warning object 22A (step S5). Here, by superimposing the warning icon 22B on the monochrome background image 22C, the visibility of the warning icon 22B is improved when the warning object 22A is combined with the base image. Next, the image composition unit 8 composes the base image and the warning object 22A to generate a display image (step S6).

  The display image generated by the display image generation unit 5 is output as display information to the image display unit 21 (step S7). Thus, in the image display unit 21, only the base image is displayed when the warning light 22 is not lit, and when the warning light 22 is lit, the warning object 22A is displayed superimposed on the base image ( FIG. 2 (a)). Next, it is determined whether or not there is an operation input in the operation input unit 1 (step S8). If there is an operation input, the process returns to step S1, and if not, the process returns to step S2.

  In FIG. 2A, only one warning light 22 is shown in the meter cluster 20, but a plurality of warning lights 22 may be provided.

  In step S <b> 6, the image composition unit 8 acquires warning light position information indicating the positional relationship between the image display unit 21 and the warning light 22 from the drawing object data storage unit 3, and based on the warning light position information, the image display unit 21. The display image was generated so that the warning object 22A was displayed at a position near the warning light 22 from the center of the display screen. Thus, the user can easily follow the warning light 22 from the warning object 22A and recognize the lighting of the warning light 22.

  However, the display mode of the warning object 22A is not limited to that shown in FIG. The warning object generation unit 7 and the image composition unit 8 grasp the elapsed time from the start of lighting of the warning lamp 22, change the position and size of the warning object 22A according to the elapsed time, and display the final position after the change. It may be closer to the warning light 22 from the center of the screen.

  For example, as shown in FIG. 4, when the warning light 22 starts to be lit, the warning object 22 </ b> A is displayed largely in the center of the display screen (FIG. 4A), so that the user is strongly aware of the lighting of the warning light 22. Let Thereafter, with the passage of time, the background image 22C is reduced, and the warning object 22A is moved from the center of the display screen to a position closer to the warning light 22 (FIGS. 4B, 4C, and 4D). Thereby, it is possible to keep the user from recognizing the lighting of the warning light 22 without greatly hindering the visual recognition of the base image, and it is also possible to follow the warning light 22 from the position of the warning object 22A.

  As shown in FIG. 4A, only when the warning light 22 is started, a warning text 22D “low battery level” indicating the warning content of the warning light 22 is displayed on the background image 22C of the warning object 22A. It may be displayed together with the warning icon 22B. In this case, the warning object generation unit 7 generates a warning text 22D based on the warning information, and the image synthesis unit 8 combines the warning text 22D with the warning object 22A. Thereby, the warning content can be easily communicated to the user at the start of lighting of the warning lamp 22. The warning text 22D may indicate the name of the warning light 22, the method for responding to the warning, and the like in addition to the warning content of the warning light 22. Further, the warning text 22D indicating the method of responding to the warning may be displayed only when the vehicle is stopped, so that safety during vehicle travel may be taken into consideration. Whether or not the vehicle is stopped can be determined from the travel information acquired by the display content determination unit 4 from the in-vehicle LAN interface unit.

  2 and 4, the display mode in which the warning object 22A is superimposed on the base image has been described. However, as shown in FIG. 5, the display screen of the image display unit 21 is divided into left and right parts, and the warning object is displayed on the left screen. 22A may be displayed on the right screen and a map image on the other side. In this case, if the base image generating unit 6 generates a base image with the left side being transparent and the right side being a map image, and the image synthesizing unit 8 performs synthesis so that the warning object 22A overlaps the transparent part of the base image. Good. The warning object 22A is displayed on the left screen here because it is a screen closer to the warning light 22. Note that the number of divisions of the display screen may be more than two or may be divided vertically.

  In addition, the warning object 22A may not be always displayed while the warning light 22 is lit, but the warning object 22A may be stopped after a certain period of time has elapsed from the start of lighting of the warning light 22. The operation of the display image generating apparatus 100 in this case is shown in the flowchart of FIG. Here, only a different part from the flowchart of FIG. 3 is demonstrated. If the display content determination unit 4 determines that the warning lamp 22 is lit (YES in step S2), it next determines whether or not a predetermined time has elapsed since the start of lighting (step S9). If the predetermined time has not elapsed, a warning icon is generated (step S4). If the predetermined time has elapsed, the process proceeds to step S3, where the warning object is made a transparent image (step S3). As described above, after the user recognizes the lighting of the warning light 22 through the warning icon 22B displayed for a predetermined time from the lighting start of the warning light 22, the display area of the base image is increased by deleting the warning object 22A. Can do.

  Further, the warning object 22A that has been deleted after a predetermined time has elapsed since the start of the lighting of the warning light 22 is turned on even when a predetermined user operation is received or even after a predetermined time has elapsed since the deletion. May be displayed again when a predetermined condition is satisfied, such as when the message continues. If the base image is a highly important image for the user, such as a route guidance image, the warning object 22A may be displayed again in order to prioritize the visibility of the base image.

  Further, in FIG. 5, the background image 22C that is the left screen of the two-screen display may be reduced with the passage of time as shown in FIG.

  Further, for convenience of explanation, a transparent warning drawing object is generated in step S3 of FIG. 3 and the image synthesizing unit 8 performs synthesis processing in step S6. However, the warning processing object is not generated and the synthesis processing unit 8 does not generate the warning drawing object. The base screen may be output as it is without performing the synthesis process.

<A-3. Effect>
The display image generation apparatus 100 according to the first embodiment that generates a display image on the image display unit 21 of the meter cluster 20 of the vehicle having the warning light 22 and the image display unit 21 is informed when the warning light 22 is turned on. A display image generation unit 5 is provided that generates a display image that is displayed by superimposing a warning icon 22B that notifies the lighting of the lamp 22 on the base image. Therefore, the user can recognize the lighting of the warning lamp 22 by visually recognizing the warning icon 22B.

  Moreover, if the display image generation part 5 produces | generates the display image which displays the warning icon 22B in the position which approached the warning lamp | ramp 22 side which the said warning icon 22B notifies lighting from the screen center of the image display part 21, The user can easily follow the warning lamp 22 from the warning object 22A and recognize the lighting of the warning lamp 22.

  Moreover, if the display image generation part 5 produces | generates the display image which superimposes and displays the warning icon 22B on the background image 22C superimposed on a base image, the visibility of the warning icon 22B will improve.

  Further, the visibility of the warning icon 22B is further improved by making the background image 22C a single color or an image having a hue different from that of the base image.

  Further, the display image generation unit 5 generates a display image that displays in the background image the warning text 22D that indicates at least one of the name of the warning lamp 22 that is lit, the warning content, and the response method for the warning. The user can obtain information on the warning light 22 along with the visual recognition of the warning icon 22B through the warning text 22D.

  Further, the display position of the warning icon 22B on the display screen of the image display unit 21 changes according to the elapsed time from the start of lighting of the warning lamp 22 that notifies that the warning icon 22B is turned on, and the display position after the change is Alternatively, a position close to the warning light 22 side from the screen center of the image display unit 21 may be used. Thus, the user can easily follow the warning light 22 from the warning object 22A and recognize the lighting of the warning light 22. In addition, for example, when the warning lamp 22 starts to be turned on, the warning icon 22B is displayed at the center of the screen, so that the user can strongly recognize the lighting of the warning lamp 22.

  Further, the size of the background image on which the warning icon 22B is superimposed may be reduced according to the elapsed time from the start of lighting of the warning lamp 22 that notifies that the warning icon 22B is turned on. Thereby, when the lighting of the warning light 22 is started, the background image is displayed in a large size so that the user strongly recognizes the lighting of the warning light 22, and thereafter, the user recognizes the warning light 22 without significantly disturbing the visual recognition of the base image. You can continue to recognize the lighting.

  Further, the display image generation unit 5 may generate a display image for displaying the warning icon 22B only for a predetermined time from the start of lighting of the warning lamp 22 that notifies the lighting of the warning icon 22B. As described above, after the user recognizes the lighting of the warning lamp 22, the display area of the base image can be increased by deleting the warning icon 22A.

  Further, the display image generation unit 5 may generate a display image for redisplaying the warning icon 22B after a predetermined time has elapsed from the start of lighting of the warning lamp 22 that notifies the lighting according to a predetermined condition. For example, by redisplaying when the lighting of the warning light 22 continues even after a predetermined time has elapsed after erasing, the user can be made to recognize the lighting of the warning light 22 again.

  Further, the warning text 22D displayed in the background image indicating the method for responding to the warning may be displayed when the vehicle is stopped, so that safety during driving may be taken into consideration.

  In addition, the display image generation method according to Embodiment 1 that generates a display image in the image display unit 21 of the meter cluster 20 includes (a) a warning that notifies the lighting of the warning lamp 22 when the warning lamp 22 is turned on. A step of generating a display image for displaying the icon 22B superimposed on the base image. Therefore, the user can recognize the lighting of the warning lamp 22 by visually recognizing the warning icon 22B.

<B. Second Embodiment>
<B-1. Configuration and operation>
The configuration of the display image generation apparatus 101 according to the second embodiment is the same as that of the display image generation apparatus 100 according to the first embodiment shown in FIG.

  FIG. 7 is a configuration diagram of the meter cluster 20 including the image display unit 21 that displays the display image generated by the display image generation apparatus 101 according to the second embodiment. The configuration of the meter cluster 20 is the same as in FIG. 2, but here, a plurality of warning lights 31, 32, 33, 34, and 35 are shown around the image display unit 21 instead of the warning lamp 22. Among them, the warning lights 31 and 33 are lit, and warning objects 31A and 33A corresponding to the warning lights 31 and 33 are displayed on the image display unit 21.

  The warning icon 31B of the warning object 31A is displayed in the same size as the warning lamp 31. However, the warning icon 33B of the warning object 33A is displayed larger than the warning lamp 33. As described above, in the second embodiment, by changing the display mode of the warning icon according to the urgency level of the warning lamp, the warning icon of the warning lamp having a high urgency level is displayed more conspicuously and the warning lamp is recognized. Increase the degree.

  FIG. 8 is a diagram showing the urgent level corresponding to the type of warning light and the display mode of the warning icon. For example, since an ABS (Antilock Brake System) warning light has a low degree of urgency, its warning icon is normally displayed. Here, the normal display is to display the same size as the warning light and the same size as the warning light. Further, since the charger warning light has a medium urgency level, the warning icon is enlarged.

  FIG. 9 is a flowchart illustrating the operation of the display image generation apparatus 101 according to the second embodiment. Differences from the flowchart shown in FIG. 3 will be described using the drawing of the warning object 33A shown in FIG. 7 as an example. The warning object generation unit 7 generates a warning icon 33B with reference to the drawing object data storage unit 3 (step S4). Here, the same graphic as the warning lamp 33 is generated as the warning icon 33B along the drawing object data stored in the drawing object data storage unit 3. Next, the warning icon is deformed according to the degree of urgency (step S10). The display content determination unit 4 stores a table indicating the emergency level of warning lights and the display mode of warning icons as shown in FIG. The display content determination unit 4 determines the urgency level of the warning light from the table indicating the urgency level of the warning light and the display mode of the warning icon and the warning information acquired from the in-vehicle LAN interface unit 2, and warns according to the urgency level. The display mode of the icon is determined. Alternatively, information indicating the urgency level of the warning light may be included in the warning information in advance. Moreover, specific warning content is included in the warning information acquired from the in-vehicle LAN interface unit 2, and the display content determination unit 4 may determine the urgency level accordingly. For example, in the case of a charger warning light, the urgency level is set to medium when the warning content is “remaining battery level: 25%”, and the urgency level is increased when the warning content is “remaining battery level: 10%”.

<B-2. Modification>
In FIG. 7, the warning icons 31B and 33B are superimposed on the background images 31C and 33C, respectively, but the background images 31C and 33C may be omitted.

  Further, the display mode of the background image instead of the warning icon may be changed according to the urgency level of the warning light. For example, for a warning light with a high degree of urgency, the background image of the warning icon is enlarged compared with a warning light with a low degree of urgency.

  Further, the display mode of the background image may be determined whether or not the background image is drawn according to the number of lit warning lights. For example, as shown in FIG. 10A, when only the warning lamp 33 is lit, the warning icon 33B is displayed superimposed on the base image. Then, as shown in FIG. 10B, when the warning lamp 31 is turned on in addition to the warning lamp 33, the warning icons 31B and 33B are drawn by being superimposed on the background images 31C and 33C, respectively. As described above, when the plurality of warning lights are in a state of high urgency, the recognition degree of the warning lights is improved by drawing the background image. Further, when the number of warning lights to be lit increases, the visibility of the warning icon may be further improved by changing the color of the background image, and the recognition degree of the warning light may be improved.

<B-3. Effect>
In the display image generating apparatus 101 according to the second embodiment, the display image generating unit 5 generates a display image for displaying the warning icons 31B and 33B in a manner corresponding to the emergency level set in advance on the warning lights 31 and 33. Therefore, for example, by increasing the size of the warning icon as the degree of urgency increases, the degree of recognition of a warning light with a high degree of urgency can be increased.

  In the display image generation device 101 according to the second embodiment, the meter cluster 20 includes a plurality of warning lights 31 to 35, and the display image generation unit 5 sets the warning icon to the number of warning lights that are lit. A display image to be displayed in a corresponding mode is generated. As the number of warning lights that are lit increases, the warning icon is displayed more conspicuously, thereby increasing the awareness of the warning lights.

<C. Embodiment 3>
<C-1. Configuration and operation>
In the first embodiment, a warning icon indicating a lit warning light is displayed. However, in the third embodiment, in addition to the warning icon, an icon indicating a warning light that is not lit and has a predetermined positional relationship with the lit warning light. Is displayed as a non-warning icon.

  The configuration of the display image generation device 102 according to the third embodiment is the same as the configuration of the display image generation device 100 according to the first embodiment shown in FIG.

  FIG. 11 shows a meter cluster 20 including an image display unit 21 that displays a display image generated by the display image generation device 102. When none of the warning lamps 31 to 35 is lit, the display image generation device 102 generates only the base image as the display image (FIG. 11A). When the warning lamp 31 is turned on, the display image generating apparatus 102 superimposes a warning object 31A in which a warning icon 31B notifying that the warning lamp 31 is turned on is superimposed on the background image 31C on the base image, as in the first embodiment. . Further, of the warning lights 32, 33, 34, and 35 that do not light up, the warning lights 32 and 33 that are arranged on the meter cluster 20 in the same order as the warning light 31 are selected as the non-target warning lights, and these are not warned. Objects 32A and 33A are generated and superimposed on the base image (FIG. 11B).

  That is, among the warning lights 32, 33, 34, and 35 that do not light up, the warning lights 32 and 33 are arranged along the upper side of the display screen, and the warning lights 34 and 35 are arranged along the right side of the display screen. Yes. Accordingly, the display content determination unit 4 selects the warning lights 32 and 33 whose closest display screen side is the upper side of the display screen that is the same as the warning light 31 as the non-target warning lights, and the warning object generation unit 7 The non-warning objects 32A and 33A of the warning lights 32 and 33 are instructed to be generated.

  The non-warning object 32A is an object in which a non-warning icon 32B representing a warning light 32 that does not light is superimposed on the background image 32C. The non-warning object 33A is an object in which a non-warning icon 33B representing a warning lamp 33 that does not light is superimposed on the background image 33C. The display image generation unit 5 generates a display image so that the positional relationship between the warning object 31A and the non-warning objects 32A and 33A corresponds to the positional relationship between the warning lights 31, 32, and 33 represented by these objects. In other words, the warning object 31A and the non-warning objects 32A and 33A are displayed in this order from the left of the display screen, which matches the order of the warning lights 31, 32 and 33 in the meter cluster 20. Further, the non-warning objects 32A and 33A are displayed in a darker color tone than the warning object 31A, for example, so that they are distinguished from each other on display.

  In this way, displaying the non-warning objects 32A and 33A in addition to the warning object 31A makes it easier for the user to identify the warning light indicated by the warning object 31A than when only the warning object 31A is displayed. For example, a user who concentrates on driving may not be able to see the display image of the image display unit 21 carefully. Therefore, if only the warning object 31A is displayed on the image display unit 21, the user may not recognize which warning light the warning object 31A represents even if the warning object 31A can be recognized. It is done. However, by displaying the warning object 31A and the non-warning objects 32A and 33A corresponding to the warning lights 31 to 33 in the same line, the correspondence between the warning object 31A and the lit warning light 31 is visually easy to understand. The visibility of the warning display is improved.

  FIG. 11C is a diagram illustrating a display image on the image display unit 21 when the warning lamp 34 is turned on. When the warning light 34 is turned on, in addition to the warning object 34A indicating the warning light 34, a non-warning object 35A indicating the warning light 35 that is not lit in the same order as the warning light 34 is displayed.

  In FIG. 11, a warning object (non-warning object) in which a warning icon (non-warning icon) is superimposed on the background image is displayed, but only a warning icon (non-warning icon) may be displayed.

<C-2. Modification>
In FIG. 11, the non-warning object is displayed darker than the warning object to distinguish between the two display modes. However, the non-warning object may be displayed smaller than the warning object to further distinguish. .

  Further, in the example of FIG. 11B, the warning object 31A and the non-warning objects 32A and 33A may stop displaying when a predetermined time has elapsed from the start of lighting of the warning lamp 31. In this case, the warning object 31A and the non-warning objects 32A and 33A may perform fade-out display in which the display size is gradually reduced until the display disappears. Further, the display mode may be distinguished by displaying the warning object 31A longer than the non-warning objects 32A and 33A.

  When the warning light is arranged at the upper right corner of the display screen of the image display unit 21, both the warning light arranged along the right side of the display screen and the warning light arranged along the upper side are used as the non-target warning lights. Alternatively, a warning light from any group may be used as a non-target warning light.

  In addition, as shown in FIG. 12, some warning lights among the non-lighting warning lights in the same row as the lighted warning lights 31 may be excluded. FIG. 12A shows an example in which the warning light 32 adjacent to the right is used as a non-target warning light when the warning light 31 is turned on. FIG. 12B shows the case where the warning light 32 is turned on. In this example, the warning lights 31 and 33 on both sides are excluded from the target warning lights.

<C-3. Effect>
In the display image generation device 102 according to the third embodiment, the display image generation unit 5 displays a non-warning icon that represents a non-target warning light selected based on the positional relationship with a warning light that is lit from among warning lights that are not lit. A display image to be displayed superimposed on the base image is generated, and the positional relationship between the warning icon and the non-warning icon in the display image corresponds to the positional relationship between the lit warning lamp and the non-target warning lamp. Therefore, the correspondence between the warning icon and the lit warning lamp is visually easy to understand, and the visibility of the warning display is improved.

  In addition, the display image generation unit 5 generates a display image that is displayed by superimposing a non-warning icon on a background image superimposed on the base image, thereby improving the visibility of the non-warning icon.

  The background image is a single color or an image having a hue different from that of the base image, thereby further improving the visibility of the non-warning icon.

  In addition, the display image generation unit 5 generates a display image that displays the warning icon with a higher emphasis than the non-warning icon, so that the correspondence between the warning icon and the lit warning light is visually easy to understand. Visibility is improved.

  Further, the display screen of the image display unit 21 has a rectangular shape, and the display image generation unit 5 sets the side of the display screen closest to the side of the display screen that is closest to the lit warning light among the warning lights that are not lit. By selecting at least one of the matching warning lights as a non-target warning light, the correspondence between the warning icon and the lit warning light is visually easy to understand, and the visibility of the warning display is improved.

  Further, the display image generation unit 5 selects a warning light that is not lit adjacent to the lit warning light as a non-target warning light, so that the correspondence between the warning icon and the lit warning light can be visually easily understood. The visibility of the warning display is improved.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Operation input part, 2 in-vehicle LAN interface part, 3 Drawing object data storage part, 4 Display content judgment part, 5 Display image generation part, 6 Base image generation part, 7 Warning object generation part, 8 Image composition part, 20 Meter cluster , 21 Image display unit, 22, 31-35 Warning light, 22A, 31A, 33A Warning object, 22B, 31B, 33B Warning icon, 22C, 31C, 33C Background image, 22D Warning text, 23 Mechanical meter.

Claims (18)

A display image generation device for generating a display image in the image display unit of a meter cluster of a vehicle having a warning light and an image display unit,
When the warning light is lit, the display image generating unit that generates the display image to display a warning icon that notifies the lighting of the warning light superimposed on a base image ,
The display image generation unit superimposes and displays a non-warning icon representing a non-target warning light selected based on a positional relationship with the lit warning light among non-lighting warning lights on the base image. Produces
The positional relationship between the warning icon and the non-warning icon in the display image corresponds to the positional relationship between the warning light being lit and the non-target warning light.
Display image generation device. The display image generation unit generates the display image for displaying the warning icon at a position near the warning light that notifies the lighting of the warning icon from the screen center of the image display unit.
The display image generating apparatus according to claim 1. The display image generation unit generates the display image to be displayed by superimposing the warning icon on a background image superimposed on the base image.
The display image generating apparatus according to claim 1. The display image generation unit generates the display image to be displayed by superimposing the non-warning icon on the background image having a single color superimposed on the base image or having a hue different from that of the base image.
The display image generation device according to claim 3. The display image generation unit generates the display image that displays the warning icon in a mode according to an emergency level set in advance in the warning light.
The display image generation device according to claim 1. The meter cluster has a plurality of the warning lights,
The display image generation unit generates the display image to be displayed in a mode according to the number of the warning lights that are lit.
The display image generation device according to claim 1. The display image generation unit generates the display image to be displayed by superimposing the non-warning icon on a background image superimposed on the base image.
Display image generating apparatus according to claim 1. The display image generation unit generates the display image to be displayed by superimposing the non-warning icon on the background image having a single color superimposed on the base image or having a hue different from that of the base image.
The display image generation device according to claim 7 . The display image generation unit generates the display image for displaying the warning icon with emphasis over the non-warning icon.
Display image generating apparatus according to claim 1. The display screen of the image display unit has a rectangular shape,
The display image generation unit includes at least one of the warning lights that is closest to the side of the display screen that is closest to the lit warning light among the warning lights that are not lit. Select as the exempt warning light,
Display image generating device according to any one of claims 1 to 9. The display image generation unit selects the warning light that does not light adjacent to the lighted warning light as the non-target warning light,
Display image generating device according to any one of claims 1 to 9. The display image generation unit generates the display image for displaying in the background image warning text indicating at least one of the name of the warning lamp being lit, the warning content, and a method for responding to the warning.
The display image generation device according to claim 3. The display position of the warning icon on the display screen of the image display unit changes according to the elapsed time from the start of lighting of the warning lamp that notifies that the warning icon is turned on, and the changed display position is the image. It is a position that is closer to the warning light from the center of the display screen.
The display image generating apparatus according to claim 1. The size of the background image on which the warning icon is superimposed is reduced according to the elapsed time from the start of lighting of the warning lamp that notifies the warning icon to be turned on,
The display image generation device according to claim 3. The display image generation unit generates the display image for displaying the warning icon only for a predetermined time from the start of lighting of the warning lamp that notifies the lighting of the warning icon.
Display image generating device according to any one of claims 1-14. The display image generation unit generates the display image for redisplaying the warning icon after a predetermined time has elapsed from the start of lighting of the warning lamp that notifies lighting, according to a predetermined condition.
The display image generation device according to claim 15 . The warning text indicates how to respond to the warning,
The display image generation unit generates the display image for displaying the warning text in the background image when the vehicle stops.
The display image generation device according to claim 12 . A display image generation method for generating a display image in the image display unit of a meter cluster of a vehicle having a warning light and an image display unit,
(A) A non-target warning light selected based on a positional relationship between a warning icon that notifies the lighting of the warning light when the warning light is turned on and the warning light that is lit from the warning lights that are not lit. Generating the display image for displaying a non-warning icon representing the image superimposed on the base image,
The positional relationship between the warning icon and the non-warning icon in the display image corresponds to the positional relationship between the warning light being lit and the non-target warning light.
Display image generation method.

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