JP2009116043A - Display system, display data output device, display control device, display control method, display control program, and computer-readable recording medium - Google Patents

Abstract

A display system capable of improving operability by starting up the display system and shortening the time until the first scene is displayed.
A liquid crystal platform unit 200 of a display system according to the present invention is transferred from a flash ROM 203 for storing all code image data necessary for displaying all scenes to be displayed on the liquid crystal wide instrument panel 100, and the flash ROM 203. RAM 204 for storing code image data, DIC 201 for generating the display data from the code image data transferred to the RAM 204, and code image data stored in the Flash ROM 203 in units of groups classified according to a predetermined standard. And a microcomputer 204 that controls the DIC 201 to generate the display data after the transfer of the code image data of the group to the RAM 204 is completed.
[Selection] Figure 1

Description

  The present invention relates to a display system mounted on a movable body that can be steered such as a vehicle.

  In recent years, as a display system for mounting an instrument panel (hereinafter referred to as instrument panel) such as an automobile, in addition to vehicle state information such as travel speed and engine speed, information that supports driving such as navigation images has been added. A display system for displaying an image on a display (display unit) as a target image has been proposed.

  For example, as shown in FIG. 11, a display system disclosed in Patent Document 1 includes a liquid crystal wide instrument panel 1100 as a display device, and a display data output device that supplies display data to the liquid crystal wide instrument panel 1100. As a liquid crystal platform unit 1200, and an input stream unit 1300 for supplying image data for display data generation to the liquid crystal platform unit 1200.

  The liquid crystal wide instrument panel 1100 is used as an instrument panel of an automobile, is composed of a horizontally long liquid crystal display panel (for example, an aspect ratio of 3: 7 or more), and displays an image corresponding to display data supplied from the liquid crystal platform unit 1200. It is supposed to be displayed.

  The display data output device 1200 includes a DIC (Digital Image Composer) 1201 that generates display data and a microcomputer 1202 that controls the DIC 1201. A flash ROM 1203 and a RAM 1204 are connected to the DIC 1201.

  In the FlashROM 1203 connected to the DIC 1201, Code data for controlling the DIC 1201 and Image data used for display are registered in advance. For example, Code / Image data as shown in FIG. 12 is registered in the FlashROM 1203.

  The DIC 1201 can display the video stream of the input stream 1300 such as a car navigation system or a CCD camera in an arbitrary layout on the liquid crystal wide instrument panel 1100 by processing the code / image data of the flash ROM 1203 according to the command from the microcomputer 1202. .

  The microcomputer 1202 receives all information (moving body information such as speed and remaining fuel) from the inside of the vehicle via the in-vehicle network (such as CAN). The microcomputer 1202 determines a scene to be switched from these pieces of information, and transmits the index number of the scene to the DIC 1201 as a command, whereby the display layout on the liquid crystal wide instrument panel 1100 is changed.

  The structure of the Code / Image data is as shown in FIG. 12, for example. That is, a command group for configuring an instrument panel layout is registered in the head command area. Further, image data of parts constituting the layout is registered in the image area 1, image area 2,.

  As shown in FIG. 13, the Code / Image data is data obtained by converting a display image corresponding to each scene into digital data.

  The DIC 1201 reads Code / Image data corresponding to each scene and outputs display data for the corresponding scene to the liquid crystal wide instrument panel 1100.

  The DIC 1201 reads Code / Image data registered in the RAM 1204 when a command indicating scene switching from the microcomputer 1202 is input.

  FIG. 14 shows a display example of the liquid crystal wide instrument panel 1100 during traveling, stopping, and back. These are, for example, three scenes.

  First, screen display during traveling will be described. As shown in FIG. 14, the screen is divided into five screens when traveling. The car navigation screen (small) in the first area on the left side as viewed from the driver (driver), the left mirror CCD screen in the second area on the right, the speedometer / tachometer screen in the third area on the right, and the fourth on the right The fuel system / seat belt / door opening / closing signal screen is arranged in the area, and the right mirror CCD screen is arranged in the fifth area on the right side. Display data for displaying such a screen is generated as follows.

  Here, switching of each scene is performed by an event. Here, the event refers to an operation such as a left turn or a right turn during driving.

  Therefore, the microcomputer 1202 selects an appropriate scene from information in the in-vehicle network (CAN or the like), and transmits the selected scene number to the DIC 1201 as a command.

  Upon receiving the command, the DIC 1201 generates display data from the Code / Image data corresponding to the corresponding scene, and outputs the display data to the liquid crystal wide instrument panel 1100.

  This will be described in detail as follows.

  As shown in FIG. 15, the DIC 1201 transfers the Boot Code area of the Flash ROM 1203 to the RAM 1204 at the time of system startup. Here, when the system is started up, it is specifically assumed that the ignition key of the automobile is turned.

  Next, the DIC 1201 transfers the data in the Code / Image area of the FlashROM 1203 to the RAM 1204 according to the command described in the Boot Code transferred to the RAM 1204 as shown in FIG.

  Then, as shown in FIG. 17, the DIC 1201 uses the command of the microcomputer 1202 as a trigger, reads the Code / Image data on the RAM 1204, and generates display data.

  FIG. 18 is a flowchart showing the flow of display processing executed in the display system shown in FIG.

  First, when the system is started up by turning the ignition key, all data stored in the flash ROM 1203 are stored in the RAM 1204 (step S101).

  Specifically, first, as shown in FIG. 15, the Boot Code data stored in the Boot Code area of the flash ROM 1203 is transferred to the Boot Code area of the RAM 1204 through the DIC 1201. Next, as shown in FIG. 16, the DIC 1201 stores all the Code / Image data stored in the Code / Image area in the Flash ROM 1203 in the RAM 1204 based on the Boot Code data stored in the Boot Code area of the RAM 1204. Forward.

  Next, the DIC 1201 reads the Code / Image data in the RAM 1204, generates display data for displaying the first scene, and outputs the display data to the wide instrument panel 1100 which is a display device (step S102). ).

  Specifically, as shown in FIG. 17, first, based on the moving body information acquired by the microcomputer 1202, the DIC 1201 reads the Code / Image data stored in the RAM 1204. Then, the DIC generates display data from the read Code / Image data, and outputs the display data to the wide instrument panel 1100.

  Subsequently, in a state where the first scene is displayed, the DIC 1201 determines whether or not there is a command input from the microcomputer 1202 (step S103). If it is determined that there is a command input from the microcomputer 1202, the process proceeds to step S104.

In step S104, the DIC 1201 reads out the code / image data of the scene corresponding to the designated command from the RAM 1204, generates display data for displaying the scene, and uses the display data as a wide-screen display device. Output to the instrument panel 1100.
WO 2006/022191 A1 (International publication date: March 2, 2006)

  However, in the conventional display system, the code / image data for displaying all scenes is transferred from the flash ROM 1203 to the RAM 1204 at a time from when the system is started until the first scene is displayed. It took time to display this scene, which was not sufficient from the viewpoint of operability.

  Therefore, it is conceivable to improve the performance of the DIC 1201 in order to shorten the time until the first scene is displayed after the liquid crystal instrument panel system is activated. That is, in order to improve the performance of the DIC 1201, it is necessary to use a high-performance CPU.

  However, a high-performance CPU is very expensive and increases the price of the entire system.

  In addition, if the CPU has high performance, a problem of reduced reliability occurs, and a problem arises regarding safety.

  The present invention has been made in view of the above-described problems, and its object is to use the existing hardware as much as possible to start the display system and shorten the time until the first scene is displayed. Thus, an object is to provide a display system capable of improving operability.

  In order to solve the above problems, a display system according to the present invention is a display system mounted on a steerable mobile body, and displays a plurality of types of information related to the mobile body as images, and the display A display data output device that outputs the image to be displayed on the device to the display device as display data for each preset scene. The display data output device is necessary for displaying one scene. When the minimum unit data is code image data, the first storage unit stores all the code image data necessary to display all the scenes to be displayed on the display device, and is transferred from the first storage unit. A second storage unit for storing the code image data and the code image data stored in the first storage unit to the second storage unit, Display data generation / output means for generating the display data from the code image data transferred to the storage unit, and outputting the generated display data to the display device, and code image data stored in the first storage unit Display data generating means for classifying the display data into the group according to a predetermined standard, transferring the group data to the second storage unit, and generating the display data from the code image data of the group for which the transfer has been completed. And control means for controlling.

  According to the above configuration, the display data generating means classifies the code image data stored in the first storage unit into groups according to a predetermined standard, and transfers the code image data to the second storage unit in units of groups. By generating the display data from the code image data of the group for which the process has been completed, the second storage is performed in units of the group rather than waiting until all the code image data is transferred to the second storage unit. Since the display data is generated from the code image data that has been transferred to the part, it is possible to start the display system and shorten the time until the first scene is displayed.

  In addition, since the transfer from the first storage unit to the second storage unit is only performed in units of groups classified according to a predetermined standard, the time from when the display system is activated until the first scene is displayed. Therefore, the CPU does not need to have high performance, and can be handled by an existing CPU that can be driven stably. Thereby, since the fall of the reliability of a system can be suppressed, the safety | security in the mobile body carrying a display system is securable.

  As a predetermined standard for classifying the above groups, for example, priority may be considered.

  For example, each code image data is given a priority indicating a priority order of transferring the code image data from the first storage unit to the second storage unit, and the control means stores the code image data in the first storage unit. The display data generation means is controlled to classify the plurality of code image data into groups of the same priority from the given priority, and transfer them to the second storage unit in order from the group with the highest priority. You may do it.

  In this case, since the code image data can be transferred from the first storage unit to the second storage unit for each group having high priority, the user determines the transfer order only by giving priority to each code image data. It becomes possible.

  The priority may be set to 1 to n (n is a natural number). The degree of freedom of ranking by giving priority can be increased.

  A priority table in which the priority and the scene are associated with each other; and the control unit refers to the plurality of code image data stored in the first storage unit with reference to the priority table. The display data generation means may be controlled so as to be classified into priority groups and transferred to the second storage unit in order from the highest priority group.

  In this case, a priority table in which priority levels and scenes are associated is provided, and this priority table is used to classify into groups having the same priority level. ) Can be easily classified into groups.

  As a result, group classification is simplified, so that the time from the start of the system to the display of the first scene can be further shortened.

  As described above, the display system according to the present invention is a display system mounted on a steerable mobile body, and displays a plurality of types of information related to the mobile body as images, and displays on the display device. A display data output device that outputs the image to be displayed to the display device as display data for each preset scene, and the display data output device is a minimum unit necessary for displaying one scene. When the data is code image data, a first storage unit for storing all the code image data necessary for displaying all scenes to be displayed on the display device, and a code image transferred from the first storage unit A second storage unit for storing data, and code image data stored in the first storage unit are transferred to the second storage unit and transferred to the second storage unit. Display data generation and output means for generating the display data from the generated code image data and outputting the generated display data to the display device, wherein the display data generation means includes the first storage unit. The code image data stored in is grouped into groups according to a predetermined standard, transferred in group units to the second storage unit, and the display data is generated from the code image data of the group that has been transferred. Thus, it is possible to shorten the time until the display of the first scene by starting the display system.

  An embodiment of the present invention will be described as follows.

  In this embodiment, an example in which the display system of the present invention is applied to a liquid crystal instrument panel system used as an instrument panel (hereinafter referred to as an instrument panel) of an automobile that is one of steerable moving bodies will be described.

  As shown in FIG. 1, the liquid crystal instrument panel system according to the present embodiment includes a liquid crystal wide instrument panel 100 as a display unit, and a liquid crystal platform unit (display data output for display) that supplies display data to the liquid crystal wide instrument panel 100. Device) 200 and an input stream unit 300 for supplying a part of an image necessary for generating display data to the liquid crystal platform unit 200.

  The liquid crystal wide instrument panel 100 displays a plurality of information including moving body information (vehicle information) that changes with the passage of time of an automobile as a moving body as an image.

  For example, the liquid crystal wide instrument panel 100 is used as an instrument panel of an automobile, is composed of a horizontally long liquid crystal display panel (for example, an aspect ratio of 3: 7 or more), and corresponds to display data supplied from the liquid crystal platform 200. An image is displayed.

  The liquid crystal platform unit 200 outputs an image to be displayed on the liquid crystal wide instrument panel 100 to the liquid crystal wide instrument panel 100 as display data for each preset scene.

  Specifically, for example, the liquid crystal platform unit 200 includes a DIC 201 that generates the display data, a microcomputer 202 as a control unit that controls the DIC 201, a flash ROM 203 and a RAM 204 connected to the DIC 201.

  The microcomputer 202 obtains an appropriate scene (described later) from vehicle information (information indicating speed, remaining fuel, steering wheel rotation angle, etc.) obtained from an in-vehicle network (such as CAN) via a network input port, The index number of the corresponding scene is output to the DIC 201 as a command.

  The ROM in the microcomputer 202 stores a program for controlling the microcomputer 202 itself and a scene priority table 206 (described later) indicating the priority of the scene to be displayed on the liquid crystal wide instrument panel 100. The RAM in the microcomputer 202 has a work area necessary for the operation of the microcomputer 202.

  The DIC 201 receives a command from the microcomputer 202 from stream information (car navigation image, CCD camera image, etc.) input from the input stream unit 300 and code / image data stored in the RAM 204. Display data corresponding to a specified scene is generated, and the generated display data is output to the liquid crystal wide instrument panel 100 via an output port.

  Display of at least a part of an image corresponding to information excluding the vehicle information, and a position and size of the image to be displayed, among the images to be displayed on the liquid crystal wide instrument panel 100 with the Code / Image data. It is assumed that it is composed of display condition information indicating conditions. Details of the Code / Image data will be described later.

  The flash ROM 203 (first storage unit) stores a plurality of types of code / image data having different display condition information.

  The RAM 204 (second storage unit) temporarily stores code / image data stored in the flash ROM 203.

  Transfer of the Code / Image data from the Flash ROM 203 to the RAM 204 is controlled by the microcomputer 202 described above. That is, the microcomputer 202 controls to transfer the Code / Image data stored in the RAM 204 to the RAM 204 at a predetermined timing.

  Specifically, when the microcomputer 202 obtains the vehicle information, the microcomputer 202 obtains code / image data necessary for generating display data corresponding to the scene selected from the vehicle information from the flash ROM 203 to the RAM 204. A command to be transferred to the DIC 201 is output.

  Here, the data storage area of the FlashROM 203 will be described below with reference to FIG. Note that the RAM 204 used in this embodiment has at least the same data storage area as the Flash ROM 203 because data from the Flash ROM 203 is transferred.

  As shown in FIG. 2, the flash ROM 203 has a configuration in which the top data storage area is a boot code area and the remaining data storage area is a code / image area. Here, the flash ROM 203 includes a plurality of code / image areas 1, 2, 3,... With respect to one boot code area.

  Boot Code data is stored in the Boot Code area. The Boot Code data is data that defines the order of Code / Image data transferred from the Flash ROM 203 to the RAM 204.

  Code / Image data is stored in the Code / Image area. Code / Image data is image data for display corresponding to each scene.

  In each Code / Image area, Code / Image data set for each scene is stored.

  As shown in FIG. 3, one Code / Image area is composed of one command area and n (n is a natural number) image areas. FIG. 3 is a diagram showing the data storage area of the FlashROM 203, but the Boot Code area is omitted for convenience of explanation.

  The command area is a display screen that displays part data (fuel gauge, speedometer, shift indicator, etc.) based on images stored in the input frame and image area of various moving pictures such as moving pictures taken by a CCD camera. This is an area for storing data consisting of command groups including position and size.

  In the command area 1 of the Code / Image area 1, data C1 including the above command group is stored.

  The image area is an area for storing component data based on an image. This image area stores part data necessary for configuring a display screen corresponding to one scene one by one. For example, as shown in FIG. 3, an image area 1-1 of the Code / Image area 1 stores part data D1-1 based on an image indicating a fuel gauge, and a speedometer is displayed in the image area 1-2. Part data D1-2 based on an image is stored, and part data 1-n based on an image indicating a shift indicator is stored in the image area 1-n.

  As described above, the Code / Image data 1 is composed of the data C1 stored in the command area 1 and the n component data D1-1 to D1-n stored in each image area. Similarly, the Code / Image data 2 is composed of data C2 stored in the command area 2 and a plurality of component data D2-1,... Stored in each image area.

  Therefore, one command and a plurality of images correspond to one scene.

  The FlashROM 203 stores a plurality of Code / Image data in the Code / Image area.

  The Code / Image data is given a priority (priority) to be displayed on the liquid crystal wide instrument panel 100.

  Here, the priority indicates a priority order to be displayed on the liquid crystal wide instrument panel 100 as described above. For example, in priority 1, priority 2,..., Priority n, the smaller the number (1, 2,..., N) given to the priority is, the higher the priority is. That is, priority 1 indicates that the priority is the highest.

  Here, the scene priority table 206 will be described below with reference to FIG.

  In FIG. 4, it is assumed that the index number of the scene corresponding to the priority (pointer to each Code / Image area) is equal to the code / Image area number of the FlashROM 203.

  That is, in the scene priority table 206, the index numbers of the scenes corresponding to the priority 1 are 1, 2, and 3, so that the Code / Image stored in the Code / Image areas 1, 2, and 3 of the FlashROM 203 is used. The priority of data is 1.

  In this system, the scene priority table 206 is used to determine the transfer procedure of Code / Image data from the Flash ROM 203 to the RAM 204.

  Although it has been described that the scene priority table 206 is mounted in the ROM in the microcomputer 202, the present invention is not limited to this. The scene priority table 206 is mounted in the flash ROM 203 connected to the DIC 201, and the microcomputer 202 is connected via the DIC 201. An implementation that reads a table may be used.

  The scene priority table 206 is generated according to the priority set corresponding to each scene by the system designer who designs each scene.

  Specific generation of the scene priority table 206 will be described below with reference to FIG.

  As shown in FIG. 5, on the user side, when generating scenes A, B, C, D, E, F,. For example, the priority is set to 1 for scenes A, C, and D, the priority 2 is set for scenes B and E, and the priority 3 is set for scene F.

  On the system side, Code / Image data corresponding to each scene is stored in each Code / Image area of the FlashROM 203 according to the priority set on the user side. Here, Code / Image data corresponding to scenes A, C, and D included in the priority group 1 having the highest priority is stored in the Code / Image areas 1, 2, and 3 of the Flash ROM 203, respectively.

  On the system side, when Code / Image data is stored in the FlashROM 203, a scene priority table 206 that associates the priority with the corresponding scene is generated. Assume that this scene priority table 206 is stored in the ROM of the microcomputer 202.

  Specifically, in the scene priority table 206, the priority of the scene is stored in association with the pointer to the Code / Image area in which the Code / Image data of the corresponding scene is stored.

  Here, the flow of data from the Flash ROM 203 to the RAM 204 will be described below.

  When the liquid crystal instrument panel system is started up, the microcomputer 202 transfers boot code data stored in the boot code area of the flash ROM 203 to the boot code area of the RAM 204 to the DIC 201 based on the network input as shown in FIG. Output the command to be executed.

  Thereby, the DIC 201 transfers the Boot Code data stored in the Boot Code area of the Flash ROM 203 to the Boot Code area of the RAM 204 based on the command from the microcomputer 202.

  Next, the microcomputer 202 sends the code / image data stored in the code / image area 1 of the flash ROM 203 to the code / image area of the RAM 204 in accordance with the boot code data stored in the boot code area of the RAM 204. A command to be transferred to 1 is output. It is assumed that Code / Image area 1 stores Code / Image data corresponding to display information necessary only when a vehicle equipped with the instrument panel is started up.

  As a result, the DIC 201 receives the code / image data stored in the code / image area 1 of the flash ROM 203 based on the boot code data stored in the boot code area of the RAM 204 based on the command from the microcomputer 202. The data is transferred to the Code / Image area 1 of the RAM 204.

  The microcomputer 202 and the DIC 201 monitor the completion of the transfer of the Code / Image data stored in the Code / Image area 1 of the flash ROM 203 to the Code / Image area 1 of the RAM 204, and after the transfer is completed, as shown in FIG. Subsequently, the code / image data stored in the code / image area 2 of the flash ROM 203 is transferred to the RAM 204.

  Similarly, the DIC 201 transfers Code / Image data having the same priority from the Flash ROM 203 to the RAM 204.

  Note that the generation of display data by the DIC 201 and the output of display data to the liquid crystal wide instrument panel 100 are performed even when other Code / Image data is being transferred from the Flash ROM 203 to the RAM 204. Display data can be generated based on the image data so that the layout can be displayed simultaneously and output to the liquid crystal wide instrument panel 100.

  In other words, if display data for displaying one scene can be generated from the Code / Image data transferred to the RAM 204, the generated display data can be sequentially output to the liquid crystal word instrument panel 100. Even when Code / Image data of another scene is being transferred, the liquid crystal wide instrument panel 100 can display the scene.

  Here, the transfer to the RAM 204 is performed for each group having the same priority specified in advance. For this reason, when transferring the same group, it is checked whether the code / image data corresponding to the corresponding scene is completed in another task process, and the transfer is performed at the timing when the code / image data of the corresponding scene is transferred. Display data is output so as to be displayed on the liquid crystal wide instrument panel 100 by a task different from the task.

  Here, the flow of processing for generating and outputting display data by the DIC 201 will be described below with reference to the flowchart shown in FIG.

  First, the DIC 201 transfers all data (Code / Image data) of priority (1) from the flash ROM 203 to the RAM 204 based on a command from the microcomputer 202 (step S11).

  Here, data transfer is performed according to the procedure described above with reference to FIGS.

  Next, the DIC 201 generates and outputs display data for displaying the first scene on the liquid crystal wide instrument panel 100 (step S12).

  Here, as the first scene, an opening screen displayed on the liquid crystal wide instrument panel 100 when the vehicle is started can be cited. However, as the priority (1) scene, in addition to the above opening screen, a low-speed forward screen and a low-speed back screen are set as shown in FIG. The display data for displaying the screen or the low-speed back screen is generated and output.

  Subsequently, the priority (i) is set to 2 (step S13).

  Then, the DIC 201 waits for a command input from the microcomputer 202 (step S14), and if a command is input, proceeds to step S15.

  In step S <b> 15, the DIC 201 generates display data for displaying a scene corresponding to the designated command, and outputs the display data to the liquid crystal wide instrument panel 100.

  On the other hand, if no command is input from the microcomputer 202 in step S14, it is determined whether untransferred data exists in the RAM 204 (step S16). This determination is made by the DIC 201 and the microcomputer 202.

  If it is determined in step S16 that there is untransferred data, the microcomputer 202 refers to the scene priority table, and outputs a command for transferring the priority (i) data from the flash ROM 203 to the RAM 204 to the DIC 201 (step S16). S17).

  Then, the priority (i) is incremented (step S18).

  After the above steps S15, S16, and S18 are completed, the process proceeds to step S14 again to wait for a command input from the microcomputer 202.

  Next, a specific example using the liquid crystal instrument panel system will be described below. Here, a case where the table shown in FIG. 10 is used as the scene priority table will be described.

  First, when the driver turns the ignition key, the display system shown in FIG.

  Next, the microcomputer 202 activates the liquid crystal instrument panel system, and based on the vehicle information input via the in-vehicle network, from the scene priority table shown in FIG. A command for transferring code / image data corresponding to the scenes of “screen”, “slow forward”, and “slow back” from the code / image area of the flash ROM 203 to the corresponding code / image area of the RAM 204 is output to the DIC 201.

  The DIC 201 generates display data for displaying the “opening screen” immediately after the completion of the transfer of the priority 1 code / image data to the RAM 204, and outputs the display data to the liquid crystal wide panel 100.

  Here, the opening screen displays information necessary for starting the engine, such as a check of the in-vehicle system, a car navigation destination input display, and a monitor image of the vehicle blind spot.

  Subsequently, when the vehicle starts to move forward or back at a low speed, any vehicle information is input to the microcomputer 202.

  Here, when the vehicle information indicating that the vehicle is moving forward at a low speed (for example, information indicating that the gear is moving forward such as the drive D range) is input, the microcomputer 202 inputs the vehicle information to the DIC 201. A command is output so as to generate display data for displaying a low-speed forward scene.

  Further, when the vehicle information indicating that the vehicle is backed at a low speed (information indicating that the gear is in the back) is input, the microcomputer 202 causes the DIC 201 to display a scene of the low speed back of the vehicle. Output command to generate data.

  In the low speed advance, the vehicle speed is assumed to be 0 to 30 km / h.

  Therefore, the microcomputer 202 outputs a command to the DIC 201 for transferring the data for the scene group of priority 2 from the flash ROM 203 to the RAM 204 until the vehicle speed reaches 30 km / h.

  (In order to complete the transfer of the priority 2 Code / Image data from the Flash ROM 203 to the RAM 204 before the vehicle speed reaches 30 km / h, it is necessary to adjust the priority 2 Code / Image data amount in advance) .

  The scenes with priority 2 are normal driving, normal driving left turn, and normal driving right turn. Here, the normal traveling assumes a vehicle speed of 30 km / h to 60 km / h.

  Accordingly, the microcomputer 202 outputs a command to the DIC 201 for transferring the data for the scene group of the priority 3 from the flash ROM 203 to the RAM 204 until the vehicle speed reaches 60 km / h.

  The priority 3 scenes are high speed driving, high speed driving left turn, and high speed driving right turn. Here, the high-speed driving assumes a vehicle speed of 60 km / h.

  Note that if the scene group assigned to the same priority is not completely transferred and the transition to the next priority scene group is made, it is necessary to set the priority classification in more detail. .

  When there is one scene group in the scene group and large code / image data is held, a situation occurs in which transfer is not in time even if the priorities are divided finely as described above.

  Therefore, basically, it is necessary to prevent the situation by setting the most important scene to the highest priority group and completing the transfer when the system is initialized, assuming that a situation where the transfer cannot be made in time will always occur. There is.

  Specific examples are shown below.

  For example, in FIG. 10, “normal running” with priority 2 and “normal running” with priority are first transitioned scenes when the speed is switched, and the code / image size of these scenes is large and the transfer is not in time. In this case, the scene transition is delayed. In order to prevent this, it is conceivable that these scenes are intentionally designated as a priority 1 group.

  From the above, in the liquid crystal instrument panel system according to the present embodiment, the Code / Image data stored in the Flash ROM 203 is classified with the same priority, and the Code / Image data with the same priority is transferred to the RAM 204 in groups. Then, display data is generated using the transferred Code / Image data, and is output to the liquid crystal wide instrument panel 100.

  Therefore, when the liquid crystal instrument panel system is activated, the time until the opening screen is displayed on the liquid crystal wide instrument panel 100 is transferred to the RAM 204 at once, the code / image data stored in the flash ROM 203 as before. It can be shortened compared to the case.

  Thereby, the operability of the liquid crystal instrument panel system can be improved.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  Finally, each block of the display data output device 200, particularly the DIC 201, may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the DIC 201 includes a central processing unit (CPU) that executes instructions of a control program that realizes each function, a read only memory (ROM) that stores the program, a random access memory (RAM) that expands the program, and the program And a storage device (recording medium) such as a memory for storing various data. An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program of the DIC 201, which is software that realizes the functions described above, is recorded in a computer-readable manner. This can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the DIC 201 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The display system of the present invention can be widely used as an information display system in vehicles such as automobiles and trains, aircraft, ships and the like.

1, showing an embodiment of the present invention, is a block diagram illustrating a main configuration of a display system. FIG. It is a figure which shows the data storage area | region of FlashROM in the display system shown in FIG. It is a figure which shows the storage state of the data in the data storage area of FlashROM shown in FIG. It is a figure which shows the correspondence of a scene priority table and the data in FlashROM. It is the figure which showed the production | generation procedure of the scene priority table. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. 3 is a flowchart showing a flow of processing for generating and outputting display data by a DIC provided in the display system shown in FIG. 1. It is a table which shows the correspondence of a priority and a scene. It is a block diagram which shows the principal part structure of the conventional display system. It is a figure which shows the data storage area | region of FlashROM shown in FIG. It is a figure which shows the correspondence of each scene and the converted digital data. It is a figure which shows the example of a display of the liquid crystal wide instrument panel 1100 at the time of driving | running | working, a stop, and a back. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. It is a figure which shows the transfer procedure of the code image data from FlashROM to RAM in the display system shown in FIG. 12 is a flowchart showing a flow of processing for generating and outputting display data by the DIC provided in the display system shown in FIG. 11.

Explanation of symbols

100 LCD wide instrument panel (display device)
200 LCD platform (data output device for display)
201 DIC (display data generation means)
202 Microcomputer (control means)
203 FlashROM (first storage unit)
204 RAM (second storage unit)
206 Scene priority table 300 Input stream section

Claims (18)

A display system mounted on a steerable mobile body,
A display device that displays a plurality of types of information relating to the moving object as an image;
A display data output device for outputting to the display device as display data for each preset scene an image to be displayed on the display device;
The display data output device is
When the minimum unit data required to display one scene is code image data,
A first storage unit for storing all code image data necessary for displaying all scenes to be displayed on the display device;
A second storage unit for storing the code image data transferred from the first storage unit;
The code image data stored in the first storage unit is transferred to the second storage unit, the display data is generated from the code image data transferred to the second storage unit, and the generated display data is Display data generation means for outputting to the display device,
The display data generating means classifies the code image data stored in the first storage unit into groups according to a predetermined criterion, and transfers the code image data to the second storage unit in units of groups. A display system that generates the display data from code image data. Each code image data is given a priority indicating a priority order of transferring the code image data from the first storage unit to the second storage unit,
The display data generating means includes
A plurality of code image data stored in the first storage unit is classified into groups of the same priority from the given priority, and transferred to the second storage unit in order from the highest priority group. The display system according to claim 1.   The display system according to claim 2, wherein the priority can be set in a range of 1 to n (n is a natural number). A priority table in which the priority and the scene are associated with each other;
The display data generating means includes
The plurality of code image data stored in the first storage unit is classified into groups having the same priority with reference to the priority table, and transferred to the second storage unit in order from the group having the highest priority. The display system according to claim 2 or 3, wherein   The display system according to claim 1, wherein the display system is mounted on a vehicle. Display data output that is mounted on a steerable mobile body and that outputs an image to be displayed on a display device that displays a plurality of types of information related to the mobile body as an image to the display device as display data for each preset scene In the device
When the minimum unit data required to display one scene is code image data,
A first storage unit for storing all code image data necessary for displaying all scenes to be displayed on the display device;
A second storage unit for storing the code image data transferred from the first storage unit;
A display for transferring the code image data stored in the first storage unit to the second storage unit, generating the display data from the code image data transferred to the second storage unit, and outputting the display data to the display device Data generating means,
The display data generating means classifies the code image data stored in the first storage unit into groups according to a predetermined criterion, and transfers the code image data to the second storage unit in units of groups. A display data output device for generating the display data from code image data. Each code image data is given a priority indicating a priority order of transferring the code image data from the first storage unit to the second storage unit,
The display data generating means includes
A plurality of code image data stored in the first storage unit is classified into groups of the same priority from the given priority, and transferred to the second storage unit in order from the highest priority group. The display data output device according to claim 6.   8. The display data output device according to claim 7, wherein the priority can be set in a range of 1 to n (n is a natural number). A priority table in which the priority and the scene are associated with each other;
The display data generating means includes
The plurality of code image data stored in the first storage unit is classified into groups having the same priority with reference to the priority table, and transferred to the second storage unit in order from the group having the highest priority. 9. The display data output device according to claim 7, wherein the display data output device is a display data output device.   The display data output device according to any one of claims 6 to 9, wherein the display data output device is mounted on a vehicle. Display data generating means for generating display data for each scene in which an image to be displayed in a display device that is mounted on a steerable mobile body and displays a plurality of types of information related to the mobile body as an image; A first storage unit for storing all the code image data necessary for displaying all the scenes to be displayed on the display device when the minimum unit data necessary for displaying one scene is the code image data; And a second storage unit that stores the code image data transferred from the first storage unit, and outputs display data generated by the display data generation unit to the display device. In the display control device provided in the apparatus,
The code image data stored in the first storage unit is classified into groups based on a predetermined standard, transferred to the second storage unit in groups, and the display image data is transferred from the code image data of the group that has been transferred. A display control apparatus for controlling the display data generating means so as to generate data. Each code image data is given a priority indicating a priority order of transferring the code image data from the first storage unit to the second storage unit,
The plurality of code image data stored in the first storage unit is classified into groups of the same priority from the given priority, and the group is transferred to the second storage unit in descending order of priority. The display control apparatus according to claim 11, wherein the display data generation unit is controlled.   The display control apparatus according to claim 12, wherein the priority can be set in a range of 1 to n (n is a natural number). A priority table in which the priority and the scene are associated with each other;
The plurality of code image data stored in the first storage unit is classified into groups having the same priority with reference to the priority table, and transferred to the second storage unit in order from the group having the highest priority. The display control apparatus according to claim 12 or 13, wherein the display data generation means is controlled as described above.   The display control apparatus according to claim 11, wherein the display control apparatus is mounted on a vehicle. Display data generating means for generating display data for each scene in which an image to be displayed in a display device that is mounted on a steerable mobile body and displays a plurality of types of information related to the mobile body as an image; A first storage unit for storing all the code image data necessary for displaying all the scenes to be displayed on the display device when the minimum unit data necessary for displaying one scene is the code image data; And a second storage unit that stores the code image data transferred from the first storage unit, and outputs display data generated by the display data generation unit to the display device. In the display control method in the apparatus,
A first step of classifying the code image data stored in the first storage unit into groups according to a predetermined criterion;
A second step of transferring the code image data classified into groups in the first step to the second storage unit in units of groups;
After the transfer of the code image data of the group to the second storage unit is completed in the second step, the display data is generated from the code image data of the group that has been transferred to the second storage unit. A display control method comprising: a third step for generating means.   A display control program for causing a computer to function as a means of the display control device according to any one of claims 11 to 14.   A computer-readable recording medium on which the display control program according to claim 17 is recorded.