Video display system

Abstract

The utility model relates to the field of virtual display, in particular to a video display system. Comprising a plurality of display devices, the video display system is arranged beside a line, each display device comprises a plurality of display units, a signal receiving module and a display control module, and the display units are arranged in the vertical direction of the display devices. The height of the multiple display units in the vertical direction of the display device is larger than the preset height of a car window of the car body, the arrangement height of the tops of the multiple display units is larger than that of the top of the car window, and the arrangement height of the bottoms of the multiple display units is smaller than that of the bottom of the car window. The signal receiving module is used for receiving a signal transmitted by a vehicle-mounted signal transmitting module of a vehicle body, the vehicle-mounted signal transmitting module is used for transmitting position and angle signals of the vehicle window, and the display control module is used for controlling opening or closing of the display units.

Description

Technical Field

[0001] The utility model relates to the field of virtual display, and particularly relates to a video display system. Background Art

[0002] The persistence of vision phenomenon refers to the phenomenon that the vision generated by light on the retina remains for a period of time after the light stops acting. When the object is removed or the light stops acting, the impression of the object on the optic nerve does not disappear immediately, but continues for a period of time, which is less than or equal to 0.1 second. By applying this principle, a number of still images (frames) are quickly and continuously displayed to the observer. The observer's brain will connect these still images, causing the observer to form a visual illusion, that is, the observer can see a continuous moving video composed of these still images (frames).

[0003] Currently, the principle of the persistence of vision phenomenon is also used to display video images on both sides of traffic lines. By arranging a number of display devices at intervals on both sides of traffic lines, when the vehicle body passes quickly, the light of the display devices is continuously projected onto the car window, thereby displaying video information to passengers. However, there are turning points on traffic lines. When the vehicle body passes through a turning point, the running posture of the vehicle body will change, and when the vehicle body adjusts between different running postures, it will also shake due to inertia. All of these will cause the relative position between the car window and the display device to change vertically, thereby affecting the display effect of the video image. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defect that when the principle of the persistence of vision phenomenon is used to display video images on both sides of traffic lines, when the running posture of the vehicle body changes when the vehicle body passes through a turning point, the relative position between the car window and the display device will change, thereby affecting the display effect of the video image in the prior art, and to provide a video display system.

[0005] The utility model provides a video display system, including a plurality of display devices. The video display system is arranged beside a line. The line includes an intermediate section interval, an outbound interval and an inbound interval. A plurality of the display devices are arranged at equal intervals longitudinally along the line in the intermediate section interval. The distance between two adjacent display devices is 1.5 m - 9.5 m. The time required for the vehicle body to pass between two adjacent display devices is less than or equal to 0.1 second. The display device includes a plurality of display units, a signal receiving module and a display control module. A plurality of the display units are arranged vertically along the display device. The height of a plurality of the display units vertically along the display device is greater than the preset height of the vehicle window. The layout height of the tops of a plurality of the display units is higher than the top of the window. The layout height of the bottoms of a plurality of the display units is lower than the bottom of the window. The signal receiving module is used to receive the signal sent by the on-vehicle signal transmitting module of the vehicle body. The on-vehicle signal transmitting module is used to send the position and angle signals of the window. The display control module is used to control the turning on or off of a plurality of the display units.

[0006] When the vehicle body is running in the intermediate section interval, the distance between two adjacent display devices is 1.5 m - 9.5 m, and the time required for the vehicle body to pass between two adjacent display devices is less than or equal to 0.1 second, which meets the conditions for the occurrence of the visual persistence phenomenon and enhances the effect of the video display system in displaying video pictures.

[0007] By setting a plurality of display units and a display control module, according to actual needs, the display control module can control the display units to turn on or off. Through this setting, the video picture is displayed in different areas vertically on the display device, improving the adaptability of the display device. By making the height of a plurality of the display units vertically along the display device greater than the preset height of the vehicle window, the layout height of the tops of a plurality of the display units is higher than the top of the window, and the layout height of the bottoms of a plurality of the display units is lower than the bottom of the window, so that the height of the picture displayed by the display device can cover the preset height of the window, improving the integrity of the picture display. By setting a signal receiving module, the display device can receive the signal sent by the on-vehicle signal transmitting module of the vehicle body, and the display control module can turn on or off the display units according to the signal sent by the on-vehicle signal transmitting module, improving the interactivity of the display device.

[0008] The number of the display units can be at least 2, at least 3, 4 or 5, etc.

[0009] For example, when the number of display units is three, the first display unit, the second display unit, and the third display unit are arranged in sequence from the upper end to the lower end of the display device. The first display unit corresponds to the position of the window near the top of the vehicle body in the vertical direction, the second display unit corresponds to the position of the middle part of the window in the vertical direction, and the third display unit corresponds to the position of the window near the bottom of the vehicle body in the vertical direction.

[0010] A number of display devices are arranged on both sides of the line. When the vehicle body is not turning, that is, the windows on both sides of the vehicle body remain vertical, the vehicle-mounted signal transmission module emits a signal indicating that the windows on both sides of the vehicle body are in a vertical state. The display control module controls the second display unit to turn on and the first display unit and the third display unit to turn off according to the signal emitted by the vehicle-mounted signal transmission module, so that the video information can be projected onto the window through the second display unit.

[0011] A number of display devices are arranged on both sides of the line. When the vehicle body turns and tilts to the right, the window on the right side of the vehicle body tilts downward, and the window on the left side of the vehicle body tilts upward. The vehicle-mounted signal transmission module emits a signal indicating that the window on the right side of the vehicle body tilts downward and the window on the left side of the vehicle body tilts upward. The display control module in the display device on the right side of the line controls the third display unit to turn on and the first display unit and the second display unit to turn off according to the signal emitted by the vehicle-mounted signal transmission module, so that the video information can be projected onto the window through the third display unit; the display control module in the display device on the left side of the line controls the first display unit to turn on and the second display unit and the third display unit to turn off according to the signal emitted by the vehicle-mounted signal transmission module, so that the video information can be projected onto the window through the first display unit;

[0012] A number of display devices are arranged on both sides of the line. When the vehicle body turns and tilts to the left, the window on the left side of the vehicle body tilts downward, and the window on the right side of the vehicle body tilts upward. The vehicle-mounted signal transmission module emits a signal indicating that the window on the left side of the vehicle body tilts downward and the window on the right side of the vehicle body tilts upward. The display control module in the display device on the left side of the line controls the third display unit to turn on and the first display unit and the second display unit to turn off according to the signal emitted by the vehicle-mounted signal transmission module, so that the video information can be projected onto the window through the third display unit; the display control module in the display device on the right side of the line controls the first display unit to turn on and the second display unit and the third display unit to turn off according to the signal emitted by the vehicle-mounted signal transmission module, so that the video information can be projected onto the window through the first display unit;

[0013] With the above settings, when demonstrating video images using the principle of persistence of vision, the vehicle-mounted signal transmission module of the vehicle body can emit a signal carrying the vertical relative position of the window along the display device. When the running attitude of the vehicle body changes, the vertical relative position of the window along the display device changes, and the display control module turns on or off the display unit according to the signal emitted by the vehicle-mounted signal transmission module, improving the display effect of the video image.

[0014] When the line is a subway line, the distance between two adjacent display devices can be set to 1.5 m - 4.5 m, preferably 2.25 m.

[0015] When the line is a high-speed rail line, the distance between two adjacent display devices can be set to 4.5 m - 9.5 m, preferably 6 m.

[0016] The plurality of display devices can be arranged on either side or both sides of the line.

[0017] The display control module can be an MBI5036 display driver chip, an MBI5353 display driver chip, an MY7122 display driver chip, an MY9168 display driver chip, an SD42527 display driver chip, etc.

[0018] The signal receiving module can be an infrared receiver group, which includes a plurality of infrared receivers, and the vehicle-mounted signal transmission module can be an infrared transmitter.

[0019] The vehicle body can also be provided with a six-axis attitude sensor unit and a magnetic sensor unit. The six-axis attitude sensor unit and the magnetic sensor unit are used to collect information on the running attitude of the vehicle body, and the vehicle-mounted signal transmission module is used to transmit the signals transmitted by the six-axis attitude sensor unit and the magnetic sensor unit.

[0020] The six-axis sensor can be an MPU6050 sensor or an SH3001 sensor, etc.

[0021] The magnetic sensor can be an ST480mc sensor, etc.

[0022] The distance between two adjacent display devices is preferably 2.7 m.

[0023] In the outbound section of the line, the plurality of display devices are arranged at intervals longitudinally along the line. Along the direction from the outbound section to the middle section, the value of the distance between two adjacent display devices forms an increasing sequence, and the distance between two adjacent display devices is 0.5 m - 2.7 m. The common difference of the increasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the outbound section.

[0024] In the approach section of the line, several of the display devices are arranged at intervals along the longitudinal direction of the line. In the direction from the approach section to the middle section, the value of the distance between adjacent two of the display devices forms a decreasing sequence, and the distance between adjacent two of the display devices is 0.5 m - 2.7 m. The common difference of the decreasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the approach section.

[0025] In the direction from the departure section to the middle section, the value of the distance between adjacent two of the display devices forms an increasing sequence, that is, the distance between adjacent two of the display devices gradually increases. When the vehicle body travels from the departure section to the middle section, the speed of the vehicle body gradually increases, reducing the time difference for a point on the vehicle body to pass through adjacent two display devices, making the time for a point on the vehicle body to pass through adjacent two display devices close to being the same, thereby improving the coherence of the picture visually perceived by the observer when moving in the departure section.

[0026] In the direction from the approach section to the middle section, the value of the distance between adjacent two of the display devices forms a decreasing sequence, and the distance between adjacent two of the display devices gradually decreases. When the vehicle body travels from the middle section to the approach section, the speed of the vehicle body gradually decreases, reducing the time difference for a point on the vehicle body to pass through adjacent two display devices, making the time for a point on the vehicle body to pass through adjacent two display devices close to being the same, thereby improving the coherence of the picture visually perceived by the observer when moving in the approach section.

[0027] The display device includes a sensor module and a current adjustment module. The sensor module is used to measure the vehicle speed, and the current adjustment module is used to adjust the magnitude of the current flowing to several of the display units.

[0028] By setting the sensor module, the vehicle speed can be monitored. When the vehicle speed reaches a preset value, the sensor module can send out a signal. When the current adjustment module receives the signal sent by the sensor, it can adjust the magnitude of the current flowing to several of the display units. This technology is an existing technology. For example, the magnitude of the current output can be adjusted through the AXS6018 chip. By adjusting the magnitude of the current, the fineness of the image displayed by the display unit can be improved. For example, when the display unit is an LED component, when the current increases, the luminous intensity of the display unit increases, thereby increasing the gray level of the display unit. When the current decreases, the luminous intensity of the display unit becomes smaller, thereby reducing the gray level of the display unit. By changing the gray level of the display unit, different gray levels and color mixtures are achieved, and further the fineness of the image displayed by the display unit is improved.

[0029] The sensor module is a speed sensor.

[0030] The sensor module can also be used to measure the distance between the display device and the vehicle body. The sensor module is a distance measuring sensor. When the distance between the display device and the vehicle body reaches a preset threshold, the sensor module can emit a signal.

[0031] The display unit includes a number of LED lights, and the current adjustment module includes a driving chip.

[0032] The driving chip can be an MBI5036 display driving chip, an MBI5353 display driving chip, an MY7122 display driving chip, an MY9168 display driving chip, an SD42527 display driving chip, etc.

[0033] The display device includes an audio transmitting module, a storage module, and a communication module. The audio transmitting module is used to send audio information. The storage module is used to store video images and audio information. The communication module is used to receive video images and audio information.

[0034] The audio transmitting module can be set as a radio transmitting module, etc.

[0035] By setting the audio transmitting module, the vehicle body can receive the audio information sent by the audio transmitting module, and thus play the audio in the vehicle body through an audio playing device.

[0036] By setting the communication module, information carrying different video images and audio can be received, and then the video images and audio can be replaced according to needs, improving the applicability of the display device.

[0037] By setting the storage module, the display device can play the video image information stored in the storage module in an offline state, improving the reliability of the display device.

[0038] Compared with the prior art, the beneficial effects of the present utility model are:

[0039] 1. The utility model provides a video display system, including a plurality of display devices, the video display system is arranged beside a line, the line includes an intermediate section, an exit section and an entrance section, the plurality of display devices are arranged at equal intervals along the longitudinal direction of the line in the intermediate section, the distance between two adjacent display devices is 1.5m-9.5m, the time required for a vehicle body to pass between two adjacent display devices is less than or equal to 0.1 second, the display device includes a plurality of display units, a signal receiving module and a display control module, the plurality of display units are arranged vertically along the display device, and the plurality of display units are arranged along the display device. The vertical height of the device is greater than the preset height of the vehicle window. The layout height of the top of several display units is higher than the top of the vehicle window, and the layout height of the bottom of several display units is lower than the bottom of the vehicle window. The signal receiving module is used to receive the signal sent by the vehicle-mounted signal transmitting module of the vehicle body. The vehicle-mounted signal transmitting module is used to send the position and angle signal of the vehicle window. The display control module is used to control the opening or closing of several display units. Through this setting, the flexibility of the display device in displaying video images when the running posture of the vehicle body changes is improved, and the display effect of the video images is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of a video display system provided by an embodiment of the present utility model.

[0041] Figure 2 This is a main schematic diagram of a display device provided by an embodiment of the present utility model.

[0042] Figure 3 A schematic diagram of the connection between a video display system and a server terminal provided by an embodiment of the present utility model.

[0043] Figure 4 This is a main schematic diagram of a video display system provided by an embodiment of the present utility model, which is set in a middle section.

[0044] Figure 5 This is a schematic diagram of the display device provided by an embodiment of the present invention when the vehicle body is running in a stable state.

[0045] Figure 6 This is a schematic diagram of the display device provided by an embodiment of the present invention when the vehicle body is tilted to the right.

[0046] Figure 7 This is a schematic diagram of the display device provided by an embodiment of the present invention when the vehicle body is tilted to the left.

[0047] Figure 8 This is a main schematic diagram of a video display system provided by an embodiment of the present utility model, which is set up in an exit section and an entry section.

[0048] Markings in the figure:

[0049] 1 - Display device, 2 - Display unit, 21 - First display unit, 22 - Second display unit, 23 - Third display unit, 3 - Sensor module, 4 - Current regulation module, 5 - Signal reception module, 6 - Display control module, 7 - Communication module, 8 - Storage module, 9 - Audio transmission module. Detailed implementation manners

[0050] The following further describes the present utility model in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model belong to the scope of the present utility model.

[0051] In the description of the specific embodiments of the present utility model without special instructions, the expression terms of the orientation or positional relationship indicated by "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / device is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0052] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.

[0053] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be construed as emphasizing or implying the relative importance of specific components.

[0054] In addition, in the description of the embodiments of the present utility model, "several", "multiple", and "a number of" represent at least two. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0055] In addition, in the description of the technical solutions of the present utility model, unless otherwise clearly specified / defined / restricted, where the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components.

[0056] Embodiment

[0057] As Figure 1-8 shown, a video display system includes a number of display devices 1. The video display system is arranged beside the line. The line includes an intermediate section, an outbound section, and an inbound section. A number of the display devices 1 are arranged at equal intervals longitudinally along the intermediate section. The distance L between two adjacent display devices 1 is 2.7 m. The preset speed of the vehicle body is equal to 150 km / h. The display device 1 includes a number of display units 2, a signal receiving module 5, and a display control module 6. A number of the display units 2 are arranged vertically along the display device 1. The height of a number of the display units 2 vertically along the display device 1 is greater than the preset height of the vehicle window. The installation height of the tops of a number of the display units 2 is higher than the top of the window. The installation height of the bottoms of a number of the display units 2 is lower than the bottom of the window. The signal receiving module 5 is used to receive the signals sent by the on-vehicle signal transmitting module of the vehicle body. The on-vehicle signal transmitting module is used to send the position and angle signals of the window. The display control module 6 is used to control the turning on or off of a number of the display units 2.

[0058] When the vehicle body is running in the intermediate section, the distance L between two adjacent display devices 1 is 2.7 m, and the preset speed of the vehicle body is equal to 150 km / h. Then the time for a certain point on the vehicle body to pass through two adjacent display devices 1 is less than 0.1 second, meeting the conditions for the occurrence of the visual persistence phenomenon and enhancing the effect of the video display system in displaying video pictures.

[0059] By setting a number of display units 2 and a display control module 6, according to actual requirements, the display control module 6 can control the opening or closing of the display units 2. Through this setting, the video picture is displayed in different areas in the vertical direction of the display device 1, improving the adaptability of the display device 1; by making the height of a number of the display units 2 along the vertical direction of the display device 1 greater than the preset height of the vehicle window of the vehicle body, the layout height of the tops of a number of the display units 2 is higher than the top of the vehicle window, and the layout height of the bottoms of a number of the display units 2 is lower than the bottom of the vehicle window, so that the height of the display picture of the display device 1 can cover the preset height of the vehicle window, improving the integrity of the picture display; by setting a signal receiving module 5, the display device 1 can receive the signal sent by the vehicle-mounted signal transmitting module of the vehicle body, and the display control module 6 can control the opening or closing of the display units 2 according to the signal sent by the vehicle-mounted signal transmitting module, improving the interactivity of the display device 1.

[0060] The number of the display units is 3. Along the direction from the upper end to the lower end of the display device 1, they are the first display unit 21, the second display unit 22, and the third display unit 23 respectively. The first display unit 21 corresponds to the position of the vehicle window close to the top of the vehicle body in the vertical direction, the second display unit 22 corresponds to the position of the middle part of the vehicle window in the vertical direction, and the third display unit 23 corresponds to the position of the vehicle window close to the bottom of the vehicle body in the vertical direction.

[0061] As Figure 5 shown, a number of display devices 1 are arranged on both sides of the line. When the vehicle body runs smoothly without jitter or tilt, the vehicle windows on both sides of the vehicle body remain vertical. The vehicle-mounted signal transmitting module sends a signal that the vehicle windows on both sides of the vehicle body are vertical. The display control module 6 controls the second display unit 22 to turn on and the first display unit 21 and the third display unit 23 to turn off according to the signal sent by the vehicle-mounted signal transmitting module, so that the video information can be projected onto the vehicle window through the second display unit 22.

[0062] As Figure 6 shown, a number of display devices 1 are arranged on both sides of the line. When the vehicle body tilts to the right, the vehicle window on the right side of the vehicle body tilts downward, and the vehicle window on the left side of the vehicle body tilts upward. The vehicle-mounted signal transmitting module sends a signal that the vehicle window on the right side of the vehicle body tilts downward and the vehicle window on the left side of the vehicle body tilts upward. The display control module 6 in the display device 1 located on the right side of the line controls the third display unit 23 to turn on and the first display unit 21 and the second display unit 22 to turn off according to the signal sent by the vehicle-mounted signal transmitting module, so that the video information can be projected onto the vehicle window through the third display unit 23; the display control module 6 in the display device 1 located on the left side of the line controls the first display unit 21 to turn on and the second display unit 22 and the third display unit 23 to turn off according to the signal sent by the vehicle-mounted signal transmitting module, so that the video information can be projected onto the vehicle window through the first display unit 21;

[0063] As Figure 7 shown, several display devices 1 are arranged on both sides of the line. When the vehicle body tilts to the left, the windows on the left side of the vehicle body tilt downward, and the windows on the right side of the vehicle body tilt upward. The on-vehicle signal transmitting module emits signals indicating that the windows on the left side of the vehicle body tilt downward and the windows on the right side of the vehicle body tilt upward. The display control module 6 in the display device 1 located on the left side of the line controls the third display unit 23 to turn on according to the signals emitted by the on-vehicle signal transmitting module, and turns off the first display unit 21 and the second display unit 22, so that video information can be projected onto the window through the third display unit 23; the display control module 6 in the display device 1 located on the right side of the line controls the first display unit 21 to turn on according to the signals emitted by the on-vehicle signal transmitting module, and turns off the second display unit 22 and the third display unit 23, so that video information can be projected onto the window through the first display unit 21;

[0064] Through the above settings, when using the principle of persistence of vision to display video images, the on-vehicle signal transmitting module of the vehicle body can emit signals carrying the vertical relative positions of the windows along the display device 1. When the running attitude of the vehicle body changes or the vehicle body shakes, the vertical relative positions of the windows along the display device 1 change, and the display control module 6 turns on or off the display unit 2 according to the signals emitted by the on-vehicle signal transmitting module, improving the display effect of the video images.

[0065] The several display devices 1 are arranged on both sides of the line.

[0066] The display control module 6 is an MY7122 display driver chip.

[0067] The vehicle body is provided with a six-axis attitude sensor unit and a magnetic sensor unit. The six-axis attitude sensor unit and the magnetic sensor unit are used to collect information on the running attitude of the vehicle body, and the on-vehicle signal transmitting module is used to transmit the signals transmitted by the six-axis attitude sensor unit and the magnetic sensor unit.

[0068] The six-axis sensor is an MPU6050 sensor, and the magnetic sensor is an ST480mc sensor.

[0069] As Figure 8 shown, in the outbound section of the line, several of the display devices 1 are arranged at intervals longitudinally along the line. In the direction from the outbound section to the middle section, the value of the distance between two adjacent display devices 1 is an increasing sequence, and the distance between two adjacent display devices 1 is 0.5 m - 2.7 m. The common difference of the increasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the outbound section.

[0070] As Figure 8As shown, in the approach section of the line, several of the display devices 1 are arranged at intervals along the longitudinal direction of the line. In the direction from the approach section to the middle section, the value of the distance between adjacent display devices 1 forms a decreasing sequence. The distance between adjacent display devices 1 is 0.5 m - 2.7 m, and the common difference of the decreasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the approach section.

[0071] In the direction from the departure section to the middle section, the value of the distance between adjacent display devices 1 forms an increasing sequence, that is, the distance between adjacent display devices 1 gradually increases. When the vehicle body travels from the departure section to the middle section, the speed of the vehicle body gradually increases, reducing the time difference for a point on the vehicle body to pass through adjacent display devices 1, making the time for a point on the vehicle body to pass through adjacent display devices 1 close to the same, thereby improving the coherence of the picture visually perceived by the observer when moving in the departure section.

[0072] In the direction from the approach section to the middle section, the value of the distance between adjacent display devices 1 forms a decreasing sequence, and the distance between adjacent display devices 1 gradually decreases. When the vehicle body travels from the middle section to the approach section, the speed of the vehicle body gradually decreases, reducing the time difference for a point on the vehicle body to pass through adjacent display devices 1, making the time for a point on the vehicle body to pass through adjacent display devices 1 close to the same, thereby improving the coherence of the picture visually perceived by the observer when moving in the approach section.

[0073] The display device 1 includes a sensor module 3 and a current adjustment module 4. The sensor module 3 is used to measure the vehicle speed, and the current adjustment module 4 is used to adjust the magnitude of the current flowing to several display units 2.

[0074] By setting the sensor module 3, the vehicle speed can be monitored. When the vehicle speed reaches a preset value, the sensor module 3 can send a signal. When the current adjustment module 4 receives the signal sent by the sensor, it can adjust the magnitude of the current flowing to several display units 2.

[0075] [ The display unit 2 includes several LED lights. The current adjustment module 4 is an MBI5353 chip. When the current increases, the light emission intensity of the display unit 2 increases, thereby increasing the gray level of the display unit 2. When the current decreases, the light emission intensity of the display unit 2 decreases, thereby reducing the gray level of the display unit 2. By changing the gray level of the display unit 2, different gray levels and color mixtures are achieved, thereby improving the fineness of the image displayed by the display unit 2.

[0076] The sensor module 3 is a speed sensor.

[0077] The display device 1 includes an audio transmitting module 9, a storage module 8, and a communication module 7. The audio transmitting module 9 is used to send audio information. The storage module 8 is used to store video images and audio information. The communication module 7 is used to receive video images and audio information.

[0078] The audio transmitting module 9 is set as a radio transmitting module or the like.

[0079] By setting the audio transmitting module 9, the vehicle body can receive the audio information sent by the audio transmitting module 9, so as to play the audio in the vehicle through an audio playback device.

[0080] As Figure 3 shown, the server terminal can send information carrying different video images and audio through a sending module. By setting the communication module 7, it is possible to receive information carrying different video images and audio, and then the video images and audio can be replaced according to needs, improving the applicability of the display device 1.

[0081] By setting the storage module 8, the display device 1 can play the video image information stored in the storage module 8 in an offline state, improving the reliability of the display device 1.

[0082] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A video display system, characterized in that, It includes several display devices (1). The video display system is arranged beside the line. The line includes an intermediate section, an outbound section, and an inbound section. Several display devices (1) are arranged at equal intervals longitudinally along the line in the intermediate section. The distance between two adjacent display devices (1) is 1.5 m - 9.5 m. The time required for the vehicle body to pass between two adjacent display devices (1) is less than or equal to 0.1 second. The display device (1) includes several display units (2), a signal receiving module (5), and a display control module (6). Several display units (2) are arranged vertically along the display device (1). The height of several display units (2) vertically along the display device (1) is greater than the preset height of the vehicle window. The installation height of the tops of several display units (2) is higher than the top of the window, and the installation height of the bottoms of several display units (2) is lower than the bottom of the window. The signal receiving module (5) is used to receive the signal sent by the on-vehicle signal transmitting module of the vehicle body. The on-vehicle signal transmitting module is used to send the position and angle signals of the window. The display control module (6) is used to control the turning on or off of several display units (2).

2. The video display system according to claim 1, characterized in that, In the intermediate section of the line, the distance between two adjacent display devices (1) is 2.7 m.

3. A video display system according to claim 2, wherein, In the outbound section of the line, several display devices (1) are arranged at intervals longitudinally along the line. In the direction from the outbound section to the intermediate section, the value of the distance between two adjacent display devices (1) is an increasing sequence. The distance between two adjacent display devices (1) is 0.5 m - 2.7 m. The common difference of the increasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the outbound section.

4. A video display system according to claim 2, wherein In the inbound section of the line, several display devices (1) are arranged at intervals longitudinally along the line. In the direction from the inbound section to the intermediate section, the value of the distance between two adjacent display devices (1) is a decreasing sequence. The distance between two adjacent display devices (1) is 0.5 m - 2.7 m. The common difference of the decreasing sequence is positively correlated with the absolute value of the preset acceleration of the vehicle body in the inbound section.

5. A video display system according to any one of claims 1-4, characterized in that, The display device (1) includes a sensor module (3) and a current regulation module (4). The sensor module (3) is used to measure the vehicle speed. The current regulation module (4) is used to regulate the magnitude of the current flowing through several display units (2).

6. A video display system according to claim 5, wherein, There are at least 2 display units (2); When the on-vehicle signal transmitting module sends a signal that all windows are in a vertical state, the display control module (6) controls the display units (2) at the positions corresponding to the vertical state of the window vertically according to the signal sent by the on-vehicle signal transmitting module, and turns off the display units (2) at other positions; When the vehicle-mounted signal transmitting module sends a signal that the right window tilts downward and the left window tilts upward, the display control module (6) controls the display unit (2) at the position corresponding to the downward tilt of the window along the vertical direction on the right side of the vehicle body to turn on according to the signal sent by the vehicle-mounted signal transmitting module, and the display units (2) at other positions are turned off. The display control module (6) controls the display unit (2) at the position corresponding to the upward tilt of the window along the vertical direction on the left side of the vehicle body to turn on, and the display units (2) at other positions are turned off; When the vehicle-mounted signal transmitting module sends a signal that the right window tilts upward and the left window tilts downward, the display control module (6) controls the display unit (2) at the position corresponding to the upward tilt of the window along the vertical direction on the right side of the vehicle body to turn on according to the signal sent by the vehicle-mounted signal transmitting module, and the display units (2) at other positions are turned off. The display control module (6) controls the display unit (2) at the position corresponding to the downward tilt of the window along the vertical direction on the left side of the vehicle body to turn on, and the display units (2) at other positions are turned off.

7. A video display system according to claim 5, characterized in that, The vehicle body is provided with a six-axis attitude sensor unit and a magnetic sensor unit, and the vehicle-mounted signal transmitting module is used to transmit the signals transmitted by the six-axis attitude sensor unit and the magnetic sensor unit.

8. A video display system according to claim 5, characterized in that, The signal receiving module (5) includes an infrared receiver group, the infrared receiver group includes a plurality of infrared receivers, and the vehicle-mounted signal transmitting module includes an infrared transmitter.

9. A video display system according to claim 5, characterized in that, The display unit (2) includes a plurality of LED lights, and the current adjustment module (4) includes a driving chip.

10. A video display system according to claim 5, wherein, The display device (1) includes an audio transmitting module (9), a storage module (8) and a communication module (7). The audio transmitting module (9) is used to send audio information, the storage module (8) is used to store video pictures and audio information, and the communication module (7) is used to receive video pictures and audio information.

Images