JP2017185846A - On-vehicle display device and content display method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle display device and a content display method which lawfully and automatically change display content without requiring a special operation from an operator thereof when it is mounted on a moving body such as an automobile.SOLUTION: An on-vehicle display device comprises: a traveling determination function part for determining if a vehicle is in a traveling state or in a stopped state; and a display control part 19 which, when a signal outputted from the traveling determination part represents that the vehicle is in the traveling state, sets display content displayed in an LED display body 3 or a liquid crystal display body 2 to display of a still image or non-display, and when a signal outputted from the traveling determination function part represents that the vehicle is in the stopped state, sets display content to at least one of display of a still image, display of a moving image, or non-display.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an in-vehicle display device that can be mounted in a mobile store or a movable public information service vehicle, and a content display method using the same.

  There are various types of display devices that are installed in stores or in stores and display information on products sold in stores (hereinafter referred to as product information) and services provided in stores (hereinafter referred to as service information). Many of them have a matrix LED display or a flat liquid crystal display as in the surface-emitting display described in Patent Document 1, for example. The product information sold at the store and the service information provided at the store are displayed on the LED display body as characters, graphics or moving images by selectively lighting a plurality of LED elements. In the flat liquid crystal display, images or videos corresponding to product information sold at the store or service information provided at the store are displayed on the screen so that passers-by and shopkeepers can recognize it together with audio information. I have to.

  With regard to such a display device, it is common to prepare a plurality of contents in advance as product information and service information to be displayed on a matrix LED display or a flat liquid crystal display. Depending on the contents of goods and services provided by the operator of the display device in the store, for example, in the time zone, it is stored in the memory built in the store or stored in an external memory (USB memory, SD card, etc.) connectable to the display device. The content information to be displayed is switched according to season and season and displayed on the display device.

  In addition, recently, a display device is actively connected to an Internet line or an intranet line and used as a digital signage terminal. In such a display device, not only product information and service information of the store, but also news, weather forecast, disaster information, local community information, and if the store is a chain store, it is transmitted from the server of the chain store headquarters. It is also possible to display real-time product information and service information.

  In such a display device, the operator of the display device of the store changes the content of the content to be displayed according to the time zone and season according to the products and services provided, or creates the content itself and displays the content. The content is also displayed in a customized manner, and such content change display is generally performed by a remote control device as disclosed in Patent Document 1 below. That is, the remote control device can transmit an infrared code signal, the display device includes an infrared signal light receiving unit, the code signal transmitted from the remote control device can freely set the content to be displayed on the display device, It is possible to change.

  That is, according to such a device, an operator of a display device in a store operates a remote control device (sends a code signal by the remote control device), and can be selectively connected to a memory built in the display device or an external device that can be connected to the display device A plurality of content information (product information, service information, etc.) stored in the memory, and various content information (for example, news, weather forecast, disaster information, local community information, etc.) connected to the network and received from outside Real-time product information, service information, and the like transmitted from the chain store headquarters server can be displayed on the LED display or liquid crystal display of the display device. As a result, the operator of the display device of the store can display information related to special events and featured products performed on that day on the display device (for example, “10% discount on all products today”, “ Tuna arrival "etc.) and emergency disaster information can be switched and displayed by operating the remote control device.

JP-A-11-167359

  Conventionally, it has been assumed that this type of display device is fixedly operated by being installed on the floor in some form or attached to a wall surface. However, in recent years, various uses of display devices have been required, and it has become necessary to be able to display while moving, assuming not only fixing but also moving by some means. For example, the number of mobile stores that use cars and the like has increased, and the seller sells products to customers and at the same time provides various advertisements and services such as news, weather forecasts, disaster information, and local community information. There is a demand for performing the above-mentioned operation using a display device such as that described above.

  In addition, as a public use, there is a demand for providing emergency information as visual information as well as conventional acoustic information at the time of disaster such as an earthquake by mounting on a car or the like. However, when installing a display device in a car, etc., regulations such as the Road Traffic Act must be taken into account. There is a limit even if a display device that is fixedly installed and used as in the past is installed in a car as it is. The original purpose cannot be achieved. For example, when used on roads, scrolling of videos and images while moving a car is dangerous because it may cause mistakes of drivers of other cars, etc. Yes.

  Therefore, the present invention is configured so that a desired display function can be exhibited even in an application mounted on a vehicle or other moving body, operates legally, and is used without worrying about restrictions in a moving state and a stopped state. It is an object of the present invention to provide a vehicle-mounted display device that can perform a content display method and a content display method using the same.

  In order to achieve the above object, an in-vehicle display device according to the present invention includes a plurality of LED light emitting elements arranged in a planar shape, each of the plurality of LED light emitting elements is arbitrarily lit, and is composed of characters and figures on the surface. An LED display body that can display information or a liquid crystal display body that can display video or images is provided on the surface, and a memory that can display a plurality of content information that is displayed on the LED display body or the liquid crystal display body is built in or Further, in the in-vehicle display device mounted on the vehicle, the control means for selectively switching and displaying the plurality of content information stored in the memory on the LED display or liquid crystal display is provided. When the vehicle is in a moving state, a movement determination function unit for determining whether the vehicle is in a moving state or a stopped state, and when a signal output from the movement determination function unit indicates that the vehicle is in a moving state, LED display Alternatively, when the display content displayed on the liquid crystal display is set to display or non-display of a still image, and the signal output from the movement determination function unit indicates that the vehicle is stopped, the display content is displayed as a still image or as a moving image. And a display control unit configured to be at least one of display and non-display.

  In the in-vehicle display device of the present invention, it is preferable that the movement determination function unit determines whether the vehicle is moving or stopped using a movement signal and a stop signal output from the electronic control device of the vehicle. .

  The in-vehicle display device of the present invention includes a GPS antenna that receives a GPS signal, and the movement determination function unit determines whether the vehicle is moving or stopped using the GPS signal received by the GPS antenna. Is preferred.

  The in-vehicle display device of the present invention includes an acceleration sensor that detects the acceleration of the vehicle, and the movement determination function unit can determine whether the vehicle is in a moving state or a stopped state based on a detection result by the acceleration sensor. preferable.

  The in-vehicle display device of the present invention includes a GPS antenna that receives a GPS signal and an acceleration sensor that detects the acceleration of the vehicle, and the movement determination function unit includes the GPS signal received by the GPS antenna and the acceleration sensor. It is preferable to determine whether the vehicle is in a moving state or a stopped state based on at least one of the detection results obtained by the above.

  Further, the content display method of the present invention is a content display method using any one of the above-described on-vehicle display devices, and in a state where a still image is displayed or a moving image is displayed in a stopped state, a movement determination function When the unit receives a signal indicating that it has been determined that the state has changed from the stopped state to the moving state, the display control unit switches the display content to display a predetermined fixed image content as an interrupt process. Yes.

  In the content display method of the present invention, when returning to the stop state within a predetermined time after switching to the display of the predetermined fixed image content, the display content or the moving image displayed immediately before the interruption process is displayed as the display content It is preferable to resume the display.

  In the in-vehicle display device of the present invention, even when the signal output from the movement determination function unit indicates that the vehicle has changed from the moving state to the stopped state, after a preset time has elapsed from this change. It is preferable to start displaying the display content corresponding to the stop state.

  According to the vehicle-mounted display device and the content display method of the present invention, the vehicle is provided with a movement determination function unit for determining whether the vehicle is in a moving state or a stopped state, and a signal output from the movement determination function unit is in a moving state of the vehicle If the display content to be displayed on the LED display or liquid crystal display is set to display or no display of a still image, and the signal output from the movement determination function unit indicates that the vehicle is in a stopped state, By including a display control unit that displays at least one of display of still images, display of moving images, and non-display of display contents, a desired display function can be exhibited even in applications mounted on a moving body. Can be used legally, and can be used without worrying about restrictions in the moving state and the stopped state. It is intended to contribute to the expansion.

It is a front view of the display apparatus which concerns on embodiment of this invention. It is sectional drawing which follows the II-II line | wire of FIG. FIG. 3 is a perspective view of the display device shown in FIGS. 1 and 2. (A) is a top view which shows the example of the remote control (remote controller) for remotely operating a display apparatus, (B) is a top view which shows another example of a remote control. It is a block diagram which shows the structure of the display apparatus which concerns on embodiment of this invention. (A) is a content list showing the contents of each content information displayed on the LED display body stored in the memory. (B) is a contents list showing each content information displayed on the liquid crystal display body stored in the memory. It is a content list to show. It is a list | wrist which shows the detail of the content content of the image 1 displayed on a LED display body. It is a list | wrist which shows the detail of the content content of the image 2 displayed on a LED display body. It is a list | wrist which shows the detail of the content content of the image 3 displayed on a LED display body. It is a list | wrist which shows the detail of the content content of the image 1 displayed on a liquid crystal display body. It is a list | wrist which shows the detail of the content content of the image 2 displayed on a liquid crystal display body. It is a list | wrist which shows the detail of the content content of the image 3 displayed on a liquid crystal display body. (A) is a side view showing an example in which an in-vehicle display device is provided inside a window glass of an automobile, and (B) is a sectional view taken along line X-X ′ in (A). (A) is a side view showing an example in which an in-vehicle display device is provided inside an automobile door, and (B) is a cross-sectional view taken along line Y-Y ′ of (A). (A) is a figure which shows the time change of the signal from a motor vehicle, (B) is a figure which shows the signal output from a motor vehicle signal interface corresponding to the signal of (A), (C) corresponds to (B). It is a figure which shows the display state in a liquid crystal display body or a LED display body. (A) shows an example of an output signal from the GPS antenna, (B) shows a signal output from the GPS control unit corresponding to (A), and (C) shows a liquid crystal display corresponding to (B). It is a figure which shows the display state in a body or a LED display body. (A) shows the time change of the acceleration signal output from the acceleration sensor, (B) shows the time change of the estimated speed signal calculated by the acceleration sensor control unit based on the signal (A), (C ) Shows an output signal from the acceleration sensor controller calculated based on the speed of (B), and (D) shows a display state on the liquid crystal display or LED display corresponding to (C). . (A) is a figure which shows the time change of the signal from a motor vehicle, (B) is a figure which shows the signal output from a motor vehicle signal interface corresponding to the signal of (A), (C) is with respect to the signal of (B) The figure which shows a delay time, (D) is a figure which shows the display state in a liquid crystal display body or a LED display body corresponding to the timing which added the delay time of (C) to the signal of (B).

  Hereinafter, a vehicle-mounted display device and a content display method using the same according to an embodiment of the present invention will be described. In the present embodiment, a case in which the vehicle is mounted on an automobile will be described as the most familiar means of movement and a realistic example. The in-vehicle display device of the present embodiment has the basic functions of a conventional display device, that is, information on products that are fixedly installed in a storefront or in a store and sold in the store or information on services provided in the store. Display or highly public information is fixedly installed in a public place, and has a function of displaying the highly public information. Furthermore, in addition to the basic function, the display device of the present embodiment can be mounted on a moving body including an automobile and other vehicles as illustrated in FIGS. 13 and 14, and the vehicle is in a moving state. It is possible to determine which of the stop states, and to control the display contents according to the determination result.

  As shown in FIG. 1, the display device 1 as an in-vehicle display device has an overall flat plate shape when viewed from the front, and as shown in FIG. 2, the front surface of the hollow housing 4 is formed in a rectangular plate shape. The transparent resin plate 7 covers the structure. Further, the display device 1 includes a flat liquid crystal display body 2 having a rectangular shape at the upper front side, and a flat LED display body 3 having a rectangular shape at the lower front side.

  The liquid crystal display 2 is constituted by a liquid crystal module having a display screen on the front side, and the LED display 3 is constituted by an LED light emitting module constituted by arranging a plurality of LED light emitting elements in a matrix on the front side. Composed. These liquid crystal modules and LED light emitting modules are respectively accommodated in the case 4 constituting the display device 1 and are arranged so that the front side is located on the front side of the case 4.

  With such a configuration, image information and video information can be displayed on the liquid crystal display body 2 and the LED display body 3 regardless of whether the display device 1 is moving or stopped, and the speaker 21 (FIG. 5). Voice information can be emitted from. Accordingly, passers around the vehicle on which the display device 1 is mounted, and if the display device 1 is provided in a mobile store, the store user is notified and recognized of image information, video information, and audio information. It becomes possible.

  An infrared light receiving element 8 is disposed at a lower right position as viewed from the front of the housing 4. The infrared light receiving element 8 is disposed inside a transparent resin plate 7 that covers the front side of the housing 4. The infrared light receiving element 8 receives, for example, signals transmitted from the infrared remote controllers 12 and 112 held by the operator through the transparent resin plate 7 as shown in FIG. 4A or 4B. Further, in the display device 1, a plurality of pieces of content information stored in advance in a memory can be selectively selected according to display contents such as product information and service information displayed on the liquid crystal display 2 or the LED display 3. Signals to be displayed on the display body 3 or the liquid crystal display body 2 can be output to the control means in the control board 5 of the display device 1.

  The infrared remote controller 12 illustrated in FIG. 4A has a basic configuration. On the other hand, in addition to the basic configuration of the infrared remote controller 12, the infrared remote controller 112 shown in FIG. 4B includes a stop display switch 31 for immediately displaying display content for a stop state, and a moving state. And a running display switch 32 for immediately displaying the display contents for the display. The infrared remote controller 12 and the infrared remote controller 112 include an ON / OFF switch 24, a light emitting unit 25, a function setting button 26, a numeric keypad 27, a feed switch 28, a return switch 29, and a content switch 30 as basic configurations. The ON / OFF switch 24 is a switch for performing ON / OFF operation of the display device 1, and the light emitting unit 25 includes an LED that emits infrared light including an optical code signal. The function setting button 26 is provided for performing various settings in the display device 1, for example, video setting, image setting, audio setting, content switching time interval setting, and content complex display setting. Used to input 9 numbers and predetermined symbols. The feed switch 28 and the return switch 29 are used to switch display contents displayed on the liquid crystal display body 2 and the LED display body 3 from the content information stored in the memory 17 in the content information switching mode activated by the operation of the content switch 30. Used for.

  When a signal is transmitted from the infrared remote controllers 12 and 112 and the infrared light receiving element 8 receives a signal corresponding to the content information switching display, the command control unit 14 converts the content information corresponding to the signal (code signal). Such a signal is output to the display control unit 19 and the audio control unit 20. The content information is stored in the memory 17 in advance. Thereby, the content information corresponding to the liquid crystal display body 2 can be displayed.

  The content information stored in the memory 17 and displayed on the liquid crystal display 2 or the LED display 3 is switched by pressing the content switch 30 of the infrared remote controller 12 and displaying the LED display content information displayed on the LED display 3. The switching mode is performed by selecting the feed switch 28 and the return switch 29. That is, when a signal corresponding to the content information switching display transmitted from the infrared remote controller 12 is received in the infrared light receiving element 8, the command control unit 14 sends a memory to the CPU 13 based on this signal (code signal). 17 causes the display control unit 19 and the audio control unit 20 to output signals related to the corresponding content information. Thereby, the content information corresponding to the liquid crystal display body 2 and the LED display body 3 can be displayed.

  In addition, when the infrared remote controller 12 held by the operator is used, the memory switch as shown in FIGS. 6A and 6B is operated by operating the feed switch 28 and the return switch 29 after the content switch 30 is pressed. Index No. 17 stored in No. 17 1-Index No. 1 It is also possible to sequentially and intermittently change in the order of n. Further, after the content switch 30 is pressed, the desired index No. It is also possible to display desired content directly by pressing.

  As shown in FIG. 2, a control board 5 and a power supply circuit 6 are built in the housing 4 of the display device 1. The power supply circuit 6 supplies power to each part in the display device 1 such as the liquid crystal display body 2, the LED display body 3, the control substrate 5, and the infrared light receiving element 8. Instead of the power supply circuit 6 or in addition to the power supply circuit 6, electric power can be supplied from the automobile side, or can be supplied from a commercial power supply.

  As shown in FIG. 5, the control board 5 includes a CPU 13, a command control unit 14, a control program memory 16, a memory 17, a timer unit 18, a display control unit 19, a voice control unit 20, an external interface 22, and a movement state detection unit 41. , An automobile signal interface 43, a GPS control unit 45, an acceleration sensor control unit 46, and a tilt sensor 47.

As for product information and service information displayed on the liquid crystal display 2 and LED display 3 of the display device 1, the memory 17 provided in the control board 5 or the external storage unit 23 as an external memory is previously stored as a plurality of pieces of content information. Is remembered. The external storage unit 23 is, for example, a USB memory or an SD card, and is connected to the control board 5 by the external interface 22. For such content information, the control means switches the content information to be displayed, for example, by time zone or season, according to the product or service provided by the operator of the display device of the store. The information is displayed on the LED display 3.
Here, the control means includes a control program memory 16, a memory 17, a timer unit 18, a display control unit 19, and a sound control unit 20.

  The command control unit 14 outputs a corresponding command signal to the CPU 13 based on a signal (code signal) transmitted from the infrared remote controller 12 and received by the infrared light receiving element 8, and executes control corresponding to the command signal to the CPU 13. Let For example, the CPU 13 causes the control unit to selectively display a plurality of pieces of content information stored in advance in the memory 17 on the liquid crystal display body 2 or the LED display body 3.

  In the control program memory 16, a plurality of pieces of content data immediately stored in the memory 17 in advance, the display mode of the image, the display interval, the number of repetitions, the sound output pattern, etc. are appropriately displayed on the liquid crystal display 2 or LED display. Program software required for the CPU 13 to control the display including processing for displaying on the body 3 is stored.

  In the memory 17, a plurality of pieces of content information relating to product information and service information displayed on the liquid crystal display body 2 or the LED display body 3 are stored in advance, and these contents are selectively displayed on the liquid crystal display under the control of the control means. It is displayed on the body 2 or the LED display body 3. Further, the memory 17 also stores data such as the number of display times and power consumption by content already displayed on the liquid crystal display body 2 or the LED display body 3.

  In the memory 17, prescribed content information displayed on the liquid crystal display body 2 and the LED display body 3 is stored in advance, and is acquired from the external network 48 and the external storage unit 23 via the external interface 22 and customized. Content information is stored. The content information includes, for example, an Index No. for each content as illustrated in FIGS. Is attached and saved. In the example shown in FIGS. 6 (A) and 6 (B), Index No. 1 is image 1, Index No. 2 is image 2, Index No. 3 is an image 3, Index No. 4 is the weather forecast, Index No. 5 is News, Index No. 6 is local news, Index No. 7 is emergency disaster information. Here, in the memory 17, the Index No. content information can be stored up to n. Display OFF (no display) is set as 0, and these contents are index No. Is stored in correspondence with each of them. In addition, Index No. In n + 1, Index No. 1 to Index No. Each of the content information up to n is continuously repeated and is displayed on the liquid crystal display body 2 or the LED display body 3. Incidentally, Index No. If the data corresponding to is blank, skip it.

  In the memory 17, an Index No. Examples of the images 1 to 3 stored as 1 to 3 and displayed on the LED display 3 are shown in FIGS. Each of the contents shown in FIGS. 7 to 9 has two sections, that is, a stopped image and a moving image. Audio data is also stored in the memory corresponding to each image, but illustration is omitted.

  In the example shown in FIG. 7, the Index No. in FIG. As one image 1, the character information “open” is displayed with a predetermined operation mode, speed, image display time, and number of repetitions. In the example shown in FIG. 8, the Index No. in FIG. As the second image 2, the character information of “Sanma set meal 500 yen” is displayed with a predetermined operation mode, speed, image display time, and number of repetitions. Furthermore, in the example shown in FIG. As the third image 3, the illustration image information in which the saury is burnt is displayed with a predetermined operation mode, speed, image display time, and number of repetitions.

  In the image data of FIGS. 7 to 9, there is a classification of image data that is stopped (stopped state) and image data that is moving (moved state), and the moving state detection unit 41 outputs a stop signal. In, the CPU 13 displays the stopped image data on the LED display body 3 via the display control unit 19. Since this image does not need to be limited to a moving image or a still image, it is possible to display blinking, a scroll image, a flip animation image, and the like. On the other hand, when the movement state detection unit 41 outputs a moving signal, the CPU 13 displays the moving image data on the LED display body 3 via the display control unit 19. Since the display contents during movement of the automobile must be limited to still images, the still image data is stored in advance in the storage area of the moving image data.

  In addition, an index No. is stored in the memory 17. Examples of the images 1 to 3 stored as 1 to 3 and displayed on the liquid crystal display 2 are shown in FIGS. Each of the contents shown in FIGS. 10 to 12 has two sections, that is, a stopped image and a moving image. Audio data is also stored in the memory corresponding to each image, but illustration is omitted. In addition, the plurality of images arranged side by side on the right side are extracted images in the middle of the moving image.

  In the example shown in FIG. 10, the Index No. in FIG. As one image 1, still image information relating to the restaurant name, “open”, and lunch time information is displayed with a predetermined operation mode, speed, image display time, and number of repetitions. In the example shown in FIG. 11, the Index No. in FIG. As the second image 2, the moving image information related to the moving image in which the characters “I accept party reservation” are scrolled on the cooking image is displayed with a predetermined operation mode and a specified number of repetitions. Furthermore, in the example shown in FIG. As the third image 3, moving image information related to a moving image obtained by further scrolling a commercial message to a moving image of a wine glass and a dish on the table is displayed with a predetermined operation mode and a specified number of repetitions.

  In the image data of FIGS. 10 to 12, there is a classification of the stopped image data and the moving image data, and when the moving state detection unit 41 outputs a stopping signal, the CPU 13 is stopped. Is displayed on the liquid crystal display 2 through the display control unit 19. Since this image does not need to be limited to a moving image or a still image, it is possible to display blinking, scrolling images, para-para anime images and the like including moving images. On the other hand, when the movement state detection unit 41 outputs a moving signal, the moving image data is displayed on the liquid crystal display 2 via the display control unit 19. Since the display contents during movement of the automobile must be limited to still images, the still image data is stored in advance in the storage area of the moving image data.

The timer unit 18 includes a clock circuit and a clock circuit that stores the current time, and can be used for time management in the control means of the display device 1 and timing management of signal processing.
The display control unit 19 performs control for selectively displaying a plurality of pieces of content information stored in the memory 17 on the LED display 3 or the liquid crystal display 2.
The sound control unit 20 controls to output sound information in the plurality of pieces of content information stored in the memory 17 toward the speaker 21 of the display device 1.

The external interface 22 connects an external network 48 and a WiFi / wireless LAN control unit 49 to the control board 5 in addition to the external storage unit 23 described above.
The content information stored in the memory 17 includes not only display information such as “business in progress” and “during break”, but also, for example, the operator of the display device 1 himself creates images and videos with a digital camera and digital video. It is also possible to use what is edited by a computer or the like and input from the external interface 22. In this case, the external interface 22 is connected to an external storage unit 23 that stores content information created by the operator.

  Further, in the display device 1, the external interface 22 is connected to an external network 48 (for example, the Internet, an intranet, WiFi, and a wireless LAN), and content information created outside is downloaded and transmitted from, for example, the headquarters of a chain store. It is also possible to periodically receive content information related to product information and service information and store it in the memory 17.

  The display device 1 is mounted on a moving body such as an automobile, and can be used for services such as product information sold at a mobile store and tomorrow's special sale information provision, and emergency public information provision services. It can be used for in-vehicle use as a signboard. In addition, since it is considered that the use of a wired LAN is restricted by being movable in an automobile or the like, the WiFi / wireless LAN control unit 49 connected to the display device 1 via the external interface 22 performs WiFi, wireless LAN. Since it can be connected to a line, it can be used as a movable digital signage terminal.

  The movement state detection unit 41 as a movement determination function unit includes an automobile signal interface 43, a GPS control unit 45, and an acceleration sensor control unit 46.

  The vehicle signal interface 43 can receive the signal 42 from the vehicle and receives a movement signal indicating that the vehicle is in a moving state and a stop signal indicating that the vehicle is in a stopped state. Recent automobiles have a lot of electronic control, and there are interfaces for electrical signals such as speed signals and brake signals, from which various signals can be extracted. For example, by pulling a speed signal into the vehicle signal interface of the moving state detection unit and detecting the speed of the vehicle by the speed signal, the vehicle is in a stopped state or in a moving state of forward movement or backward movement. The movement signal and the stop signal corresponding to the detection result can be output. Upon receiving such a signal, the vehicle signal interface 43 sends the signal to the moving state detecting unit 41, and based on these signals, the moving state detecting unit 41 determines whether the vehicle is moving or stopped. The determination result is sent to the CPU 13, and the CPU 13 displays a predetermined display content of the liquid crystal display body 2 and the LED display body 3 depending on whether the automobile is moving or stopped. To instruct. In particular, when switching from one of the moving state and the stopped state to the other, the display control unit 19 is instructed to immediately switch the display contents.

The signal received by the CPU 13 from the movement state detection unit 41 indicates whether the automobile is in a movement state or a stop state, but does not show any further information. For example, even if the CPU 13 can know the stop state, it may be in a stop state due to a red light, or may be in a stop state due to a traffic jam. In a stop state that temporarily returns to a moving state after a short period of time, such as a red light stop state or a stop state in a traffic jam, there is a risk of inducing an error of another vehicle driver as described above. Therefore, video display etc. must be avoided. Therefore, even if the CPU 13 determines that it is in a stopped state based on a signal received from the movement state detection unit 41, the CPU 13 does not perform a display corresponding to the stopped state unless a time preset by the operator of the display device 1 has elapsed. ing. The operator of the display device 1 can set the time in advance according to the road conditions at that time. By setting the time in this way, the CPU 13 does not immediately switch to the display corresponding to the stopped state even if the moving state detecting unit 41 recognizes the stopped state, so that it is possible to avoid the error of the driver of another vehicle. Thus, it is possible to reliably prevent a moving image from being displayed when the vehicle is temporarily stopped due to a red light or traffic jam. Here, the time setting can be performed by selecting a time setting item with the function setting button 26 of the infrared remote controller 12 and inputting a desired time with the numeric keypad 21.
For example, in the example shown in FIG. 18, the time preset by the operator of the display device 1 is the delay time shown in (C). As shown in FIG. 18, after the lapse of the delay time from the timing at which the vehicle is stopped in the output signal shown in (B), that is, the signal level rises from “L” to “H”, (D) The display of the image data at the time of stopping is started.

  For example, when the signal 42 from the automobile shows a time change as shown in FIG. 15A, the automobile signal interface 43 outputs a signal as shown in FIG. Correspondingly, as shown in FIG. 15C, in accordance with an instruction from the CPU 13, image data at the time of movement (moving state) and image data at the time of stopping (stopped state) are switched, and corresponding to these image data. The image is displayed on the medium selected by the CPU 13 among the liquid crystal display body 2 and the LED display body 3. Here, the horizontal axis of FIGS. 15A, 15B, and 15C is the elapsed time, and in the vertical axis, the signal 42 from the vehicle indicates that the speed is positive and reverse when moving in the forward direction. When moving in the direction, the speed is negative. When the speed is zero, the signal from the automobile signal interface 43 is “H”, and the image data at the time of stop is selected. On the other hand, when the speed from the signal 42 from the automobile is other than zero, the signal from the automobile signal interface 43 is “L”, and the image data at the time of movement is selected.

  Based on the output signal from the GPS antenna 44, the GPS control unit 45 calculates the distance between the vehicle and the GPS satellite at regular intervals, and based on the result, calculates the position, traveling direction, and speed of the vehicle. Here, the GPS is a Global Positioning System, and the data received by the GPS antenna 44 from the GPS satellite includes data on the longitude and latitude of the automobile equipped with the GPS antenna 44. The movement state detection unit 41 determines whether the vehicle is in a movement state or a stop state based on the calculation result by the GPS control unit 45. The determination result is sent to the CPU 13, and the CPU 13 displays a predetermined display content of the liquid crystal display body 2 and the LED display body 3 depending on whether the automobile is moving or stopped. To instruct.

  When the output signal from the GPS antenna 44 indicates information as shown in FIG. 16A, the GPS control unit 45 outputs a signal as shown in FIG. As shown in FIG. 16C, in accordance with an instruction from the CPU 13, image data at the time of movement (moving state) and image data at the time of stopping (stopped state) are switched, and images corresponding to these image data are displayed on the liquid crystal display. It is displayed on the medium selected by the CPU 13 among the body 2 and the LED display body 3. Here, in the signal from the GPS antenna 44, when neither the longitude data nor the latitude data is changed, the signal from the GPS control unit 45 is “H”, and the image data at the time of stop is selected. On the other hand, when at least one of longitude data and latitude data is changed in the signal from the GPS antenna 44, the signal from the GPS control unit 45 is “L”, and the image data at the time of movement is selected.

The acceleration sensor control unit 46 integrates a signal related to acceleration output from the acceleration sensor 40 with time to estimate the speed of the automobile, and determines whether the automobile is moving or stopped based on the estimated speed. . This estimated speed can be obtained in a form having + (positive) or-(negative) polarity. For example, if it is + V1, it means the V1 speed in the forward direction, if it is -V1, it means the V1 speed in the backward direction, and if it is 0 (zero), it is in the stopped state. Since the estimated speed and the output signal from the acceleration sensor 40 may contain slight errors, thresholds “+ Vth−A” and “−Vth−B” are set on the + side and the − side, As shown in FIGS. 17B, 17C, and 17D, when the velocity value V is within the range between the two threshold values including zero, that is, when the following equation (I) is satisfied In addition, if the moving state detection unit 41 determines that the automobile is in a stopped state, the error of the signal can be eliminated, and the stopped state and the stopped state can be accurately determined. Can be sent. Here, when the speed value V does not satisfy the following formula (I), that is, when the speed value V is larger than + Vth−A or smaller than −Vth−B, the moving state detection unit 41 detects that the vehicle is Judged to be in a moving state. At this time, Vth is a threshold value common to the traveling direction and the backward direction, A is a correction value for the traveling direction with respect to the threshold value, and B is a correction value for the backward direction.
−Vth−B ≦ V ≦ + Vth−A (I)

  As described above, the moving state detection unit 41 determines whether the vehicle is moving or stopped based on the signal 42 from the vehicle, the output signal from the GPS antenna 44, or the output signal from the acceleration sensor 40. However, this determination may be made by combining two or more of these three signals.

When the movement state detection unit 41 as the movement determination function unit determines whether the vehicle is in a moving state or a stopped state, the CPU 13 causes the display control unit 19 to perform the following (1) and (2) based on the determination result. To make it work.
(1) When the signal output from the movement state detection unit 41 is a signal indicating that the automobile is in a movement state, the display content displayed on the LED display 3 or the liquid crystal display 2 is displayed as a still image or not. Display.
(2) When the signal output from the movement state detection unit 41 is a signal indicating that the vehicle is in a stopped state, the display content is at least one of display of a still image, display of a moving image, and non-display. I will.

  Further, when it is determined that the automobile has been switched from the moving state to the stopped state or from the stopped state to the moving state, the CPU 13 immediately changes the display content corresponding to the state after switching to the display control unit 19. The liquid crystal display body 2 and the LED display body 3 immediately change the display. Here, in particular, when the moving state detection unit 41 receives a signal indicating that it has been changed from the stopped state to the moving state in a state where a still image or a moving image is displayed in the stopped state. The display control unit 19 switches the display content to display a predetermined fixed image content as an interrupt process. When returning to the stop state within a predetermined time, for example, within 3 seconds after switching to the display of the fixed image content, for example, the display of the still image or the moving image displayed immediately before the interrupt processing is displayed. Resume. Here, as the fixed image content, an image for a moving state may be used, or a dedicated still image may be used.

In addition, the display device 1 includes an inclination sensor 47. The tilt sensor 47 detects the tilt angle of the display device 1 with respect to the direction of gravity.
When the display device 1 is mounted on a moving body such as an automobile, it may be necessary to change the vertical and horizontal directions and inclination depending on physical circumstances such as the inclination of the road. In such a case, according to the detection result by the inclination sensor 47, the CPU 13 outputs an instruction signal to the display control unit 19 so as to adjust the display angle of the display content on the liquid crystal display body 2 or the LED display body 3, In accordance with this signal, the display control unit 19 adjusts image data output to the liquid crystal display body 2 or the LED display body 3.

Suction cups 9 are respectively arranged at the four corners of the transparent resin plate 7, and the display device 1 is attached to the automobile by these suction cups 9. For example, as shown in FIGS. 13A and 13B, the suction cup 9 can be easily attached to the inside of the window glass 11 of the automobile 10. Further, as shown in FIGS. 14A and 14B, it can be built in the door 51 of the automobile 10. In this case, the range corresponding to the display device 1 in the outer surface of the door 51 is a transparent member 52 that can transmit light emitted from the infrared remote controller 12, and the suction device 9 is used for the transparent member 52. By attaching 1, the display device 1 can be visually recognized from the outside.
Here, even when the display device 1 is mounted inside the window glass 11 of the automobile 10 as shown in FIGS. 13A and 13B, the light emitted from the infrared remote controller 12 passes through the window glass 11. It is possible to transmit a predetermined signal to the display device 1 to perform a predetermined operation. 14A and 14B, when the display device 1 is built in the door 51, the light emitted from the infrared remote controller 12 passes through the transparent member 52. Thus, it is possible to transmit a predetermined signal.
Note that the display device 1 can be attached to the vehicle by an appropriate fixing method other than the suction cup 9 according to the attachment location or the like.

  In addition, although the display apparatus 1 which concerns on the said embodiment is provided with each of the liquid crystal display body 2 and the LED display body 3 in the housing | casing 4, only one of the liquid crystal display body 2 and the LED display body 3 is provided. You may make it prepare. In addition, the display device 1 can switch each content information stored in the memory 17 by transmitting a signal from the infrared remote controller 12 to the infrared light receiving element 8. For convenience of explanation, in FIG. 5, the CPU 13, the timer unit 18, the command control unit 14 based on an infrared signal, and the like are described separately for each element. However, according to recent technology, it may be possible to use a one-chip CPU or the like. In this case, the element may be included in the CPU 13.

  The in-vehicle display device according to the present invention is configured so that a desired display function can be exhibited even in an application mounted on a vehicle or other moving body, and operates legally, and cares about restrictions in a moving state and a stopped state. It is useful in that it can be used without making it.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Liquid crystal display body 3 LED display body 4 Case 5 Control board 6 Power supply circuit 7 Transparent resin board 8 Infrared light receiving element 9 Suction cup 10 Car 11 Window glass 12 Infrared remote control 13 CPU
14 Command control unit 16 Control program memory 17 Memory 18 Timer unit 19 Display control unit 20 Audio control unit 21 Speaker 22 External interface 23 External storage unit (external memory)
24 ON / OFF switch 25 Light emitting unit 26 Function setting button 27 Numeric keypad 28 Feed switch 29 Return switch 30 Content switch 31 Stopped display switch 32 Traveling display switch 40 Acceleration sensor 41 Movement state detection unit 42 Signal from automobile 43 Automotive signal interface 44 GPS antenna 45 GPS control unit 46 Acceleration sensor control unit 47 Tilt sensor 48 External network 49 WiFi / wireless LAN control unit 51 Automotive door 52 Transparent member

Claims (8)

A plurality of LED light emitting elements are arranged in a plane, each of the plurality of LED light emitting elements is arbitrarily turned on, and an LED display body or video or image that can display information including characters and figures on the surface is displayed. A liquid crystal display body that can be displayed is provided on the surface, and a memory capable of storing a plurality of content information displayed on the LED display body or the liquid crystal display body is built-in or connectable. In a vehicle-mounted display device mounted in a vehicle, incorporating control means for selectively displaying content information on the LED display or the liquid crystal display.
A movement determination function unit for determining whether the vehicle is moving or stopped;
When the signal output from the movement determination function unit indicates that the vehicle is in a moving state, the display content displayed on the LED display body or the liquid crystal display body is displayed as a still image or not displayed, and the movement determination is performed. A display control unit configured to display at least one of display of a still image, display of a moving image, and no display when the signal output from the function unit indicates that the vehicle is in a stopped state; An in-vehicle display device.   The in-vehicle display device according to claim 1, wherein the movement determination function unit determines whether the vehicle is in a moving state or a stopped state by using a movement signal and a stop signal output from the electronic control device of the vehicle. The in-vehicle display device includes a GPS antenna that receives a GPS signal,
The in-vehicle display device according to claim 1, wherein the movement determination function unit determines whether the vehicle is moving or stopped using a GPS signal received by the GPS antenna. The in-vehicle display device includes an acceleration sensor that detects acceleration of the vehicle,
The in-vehicle display device according to claim 1, wherein the movement determination function unit determines whether the vehicle is in a moving state or a stopped state based on a detection result by the acceleration sensor. The in-vehicle display device includes a GPS antenna that receives a GPS signal, and an acceleration sensor that detects acceleration of the vehicle,
The on-vehicle vehicle according to claim 1, wherein the movement determination function unit determines whether the vehicle is in a moving state or a stopped state based on at least one of a GPS signal received by the GPS antenna and a detection result by the acceleration sensor. Display device. A content display method using the in-vehicle display device according to any one of claims 1 to 5,
When the movement determination function unit receives a signal indicating that the movement state has been changed from the stop state to the movement state while the still image is displayed or the moving image is displayed in the stop state. The display control unit switches the display content to display of a predetermined fixed image content as an interruption process.   When the display returns to the stop state within a predetermined time after switching to the display of the predetermined fixed image content, the display of the still image or the moving image displayed immediately before the interrupt process is performed as the display content. The content display method according to claim 6, wherein the content is resumed.   Even if the signal output from the movement determination function unit indicates that the vehicle has changed from the moving state to the stopped state, it corresponds to the stopped state after a preset time has elapsed from the change. The in-vehicle display device according to any one of claims 1 to 5, wherein display of the display content is started.