CN107527576A - Holographic advertisement machine - Google Patents

Abstract

The present invention proposes a holographic advertising machine, comprising: a motor; a blade connected to the motor; a first control board located inside the blade; an LED light bar arranged on the surface of the blade and connected to the first control board; body, the first control board is provided with a data reading device, a microprocessor and a sensor, the data reading device is used to read multimedia files, the sensor is used to detect the position of the luminous body when the blade rotates, and the microprocessor is used to read When the multimedia file to be played is fetched, the multimedia file to be played is analyzed, and the illuminant at the corresponding position in the rotating state is controlled to emit light according to the preset size and playback position, so as to form a 3D image. The invention drives the LED light bar to rotate through the motor, and the rotating illuminant is controlled by the first control board to emit light of different colors at different positions, and realizes naked-eye 3D display effect by using the principle of persistence of vision.

Description

Holographic advertising machine

technical field

The invention belongs to the technical field of electronic display, and relates to a holographic advertising machine and a method for displaying 3D images thereof.

Background technique

With the advancement of technology, a large number of LED display devices have been developed, and the most widely used is the LED display screen. Each LED illuminant in the array corresponds to a pixel point, and each pixel point is connected to the driving circuit. Control, emit different colors of light so as to display the corresponding images and videos as a whole. In the prior art, LED display screens generally use polarization technology to achieve 3D display effects, and viewers generally need to wear polarized glasses to experience 3D effects.

Contents of the invention

The main purpose of the present invention is to provide a holographic advertising machine, aiming at solving the problem that the existing LED display screen cannot achieve naked-eye 3D display effect.

In order to solve the above technical problems, the present invention proposes a holographic advertising machine, comprising: a motor; a blade connected to the motor; a first control board located inside the blade; LED light bar; the LED light bar includes several illuminants, the first control board is provided with a data reading device, a microprocessor and a sensor, the data reading device is used to read multimedia files, and the sensor uses When detecting the position of the illuminant when the blade rotates, the microprocessor is used to analyze the multimedia file to be played when it reads the multimedia file to be played, and control the rotation according to the preset size and playback position. The illuminant at the corresponding position of the state emits light to form a 3D image.

Preferably, the data reading device includes: a plug interface, which can be connected to an external data storage device; an authentication module, used to authenticate the data storage device connected to the plug interface, and notify The data reading device reads the multimedia files therein.

Preferably, a wireless power supply device for supplying power to the control board is also included, the wireless power supply device includes a first coil arranged in the blade and a second coil arranged on the motor.

Preferably, the data reading device includes a wireless receiving module for receiving external multimedia files.

Preferably, it also includes a casing for frame-connecting the motor, the bottom surface of the casing is provided with a fixing device, and the side wall of the casing is also provided with a strip-shaped cooling port.

Preferably, it also includes a second control board respectively connected to the motor and the second coil, and a power interface provided on the bottom surface of the housing, the power interface is connected to the second control board, the The power interface and the second control board are also connected to a power supply assembly disposed inside the casing, and the power supply assembly is used to supply power to the holographic advertising machine.

Preferably, it also includes an infrared remote controller capable of transmitting instructions, and an infrared communication module arranged on the first control board for receiving the instructions, and the infrared communication module is also electrically connected to the data reading device.

The present invention also proposes a method for displaying 3D images of a holographic advertising machine, which includes the following steps: scaling the imported multimedia file and setting its playback position in the holographic advertising machine to form a multimedia file to be played; When playing a multimedia file, analyze the multimedia file to be played, and control the illuminant at the corresponding position in the rotating state to emit light according to the preset size and playback position, so as to form a 3D image.

Preferably, the step of zooming the imported multimedia file and setting its playing position in the light body to form the multimedia file to be played includes: adjusting the display position and display size of the imported multimedia file; Files are format converted and identities embedded.

Preferably, before executing the step of reading the multimedia file to be played, the method further includes: authenticating the data storage device connected to the socket, and reading the multimedia file therein after passing the authentication.

In the present invention, a second control board is arranged on the motor, an LED light bar and a microprocessor are arranged on the second control board, and each luminous body on the rotating LED light bar is controlled by the microprocessor to emit different lights at different positions. Color light, due to the principle of persistence of vision, displays suspended images or video content in the air, achieving the effect of naked-eye 3D.

Description of drawings

Fig. 1 is a schematic structural diagram of a holographic advertising machine in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a holographic advertising machine in another embodiment of the present invention;

3 is a flowchart of a method for displaying 3D images of a holographic advertising machine in an embodiment of the present invention;

Fig. 4 is a flow chart of making a playback file in the embodiment of Fig. 3 .

Explanation of reference numbers:

label name label name 1 motor 2 blade 3 first control board 4 LED light bar 5 socket 6 first coil 7 second coil 8 case 9 Buckle 10 bracket 11 Strip cooling vent 12 second control panel 13 power interface

detailed description

In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

The present invention proposes a holographic advertising machine, referring to Fig. 1 and Fig. 2, comprising: a motor 1; a blade 2 connected to the motor 1; a first control board 3 located inside the blade 2; arranged on the surface of the blade 2 and connected to the The LED light bar 4 connected to the first control board 3; the LED light bar 4 includes a number of illuminants, and the first control board 3 is provided with a data reading device, a microprocessor and a sensor, and the data reading device For reading multimedia files, the sensor is used to detect the position of the luminous body when the blade rotates, and the microprocessor is used to analyze the multimedia file to be played when the multimedia file to be played is read, and According to the preset size and playback position, the illuminant at the corresponding position in the rotating state is controlled to emit light to form a 3D image.

In this embodiment, the rotating shaft of the motor 1 is arranged perpendicular to the blade 2, and the rotation of the blade will form a rotation plane, which is the display screen of the holographic advertising machine. The first control board 3 and the LED light bar 4 are arranged on the blade 2, and can rotate with the blade 2 with the motor 1 rotating shaft as the rotation axis. The LED light bar 4 is electrically connected with the first control board 3, and the first control board 3 is also A sensor and a microprocessor are provided, and the two are electrically connected through the first control board 3 . The sensor can choose a Hall sensor, which is used to perceive the angle and position of each luminous body during the rotation of the LED light bar 4, and then according to the file read by the data reading device, the microprocessor controls the light at different angles and positions. The illuminant emits lights of different colors. When the motor 1 rotates at a steady speed greater than a certain value, the viewer will see a complete image or video due to the principle of persistence of vision. When the blade 2 is rotating, due to the principle of persistence of vision, the light reflected by the object behind the blade 2 can also be received by human eyes, and the audience can see through the object behind the blade 2. Thus, the images or videos displayed by the LED light bar 4 will be suspended in the air, and the luminous body has a large luminous range and a large viewing angle, so that viewers can observe the images or videos at different positions. Compared with the array LED display, the holographic advertising machine can achieve the effect of naked-eye 3D display.

In the above example, the data reading device includes: a plug interface 5, the plug interface 5 can be connected with an external data storage device; an authentication module is used to authenticate the data storage device connected to the plug interface, and after the authentication is passed The data reading device is notified to read the multimedia files therein. The plug interface 5 includes data interfaces such as a USB interface and a memory card interface, and is used for connecting with various data storage devices such as a U disk and a memory card. The above-mentioned files can only be read by the data reading device after they are made by the corresponding software. During the making of the files, a file identity will be implanted. The data reading device will recognize the file identity mark when reading the file, and the above-mentioned file can be read only after the recognition is successful. Finally, the microprocessor controls the illuminant to emit light of different colors according to the above-mentioned multimedia files, thereby displaying images or videos. The setting of the above data interface can enable the user to use various data storage devices to update the played image and video files in time. The authentication module requires the identity library of the device to match the identity of the file, so that the scarcity of image and video files improves the commercial value of the holographic advertising machine.

In the above embodiments, the holographic advertising machine further includes a wireless power supply device for supplying power to the control board. The wireless power supply device includes the first coil 6 arranged in the blade 2 and the second coil 7 arranged on the motor 1 . The second coil 7 is connected to an external power source to generate a magnetic field, and the second coil 7 is nested with the first coil 6 arranged on the first control board 3, and the first coil 6 can sense the magnetic field change in the second coil 7 so that A current is generated to supply power to the first control board 3 and the LED light bar 4 . The wireless power supply device can be equipped with different transmitting circuits and receiving circuits according to different power supply schemes. Commonly used power supply schemes include electromagnetic induction power supply, electromagnetic resonance power supply, etc. When there is no wireless power supply device, the holographic advertising machine generally uses a built-in battery to supply power to the first control board 3. Due to the limited capacity of the battery, the working time of the holographic advertising machine is limited. If a large-capacity battery is used, the quality of the battery will increase. , the load of the motor 1 will also increase, which will affect the imaging effect and service life of the motor 1 . The setting of the infinite power supply device greatly increases the working hours of the holographic advertising machine.

In the above embodiments, the data reading device includes a wireless receiving module for receiving external multimedia files. The wireless receiving module includes a bluetooth chip, and the holographic advertising machine can establish a connection with external devices with bluetooth communication functions such as smart phones through the bluetooth chip, and then the user can send the prepared multimedia files to the holographic advertising machine on the operating platform of the smart phone After receiving the above-mentioned documents, the holographic advertising machine is authenticated and interpreted by the authentication module of the data reading device, and finally the microprocessor controls the LED light bar 4 to play corresponding images or videos. In addition, this holographic advertising machine can also establish a connection with an external Bluetooth speaker through a Bluetooth chip. When the holographic advertising machine is playing graphics and video content, it can also analyze the audio part of the file and play it out from the Bluetooth speaker, which enhances the audio-visual effect. The setting of the Bluetooth chip enables the holographic advertising machine to establish a connection with external devices, expands the functions of the holographic advertising machine, and at the same time, it is more convenient for users to control the holographic advertising.

In the above embodiment, the holographic advertising machine further includes a casing 8 for frame-connecting the motor 1 , the bottom surface of the casing 8 is provided with a fixing device, and the side wall of the casing 8 is also provided with strip-shaped cooling vents 11 . The housing 8 is used to frame and protect the motor 1 to make the appearance of the holographic advertising machine more beautiful. At the same time, a fixing device is provided at the bottom of the housing 8, and the fixing device can be set as a suction cup closely connected with a smooth surface. When the blade 2 rotates, if there is any foreign object contacting or colliding with it, the holographic advertising machine will be out of balance. The fixing device arranged on the bottom surface of the housing 8 connects the holographic advertising with the plane in contact with it, and its operation will be more stable. In this embodiment, the fixing device includes a wall hanging component. The wall hanging component includes a frame buckle 9 with an opening on one side and a bracket 10 connected to the buckle 9 . The bracket 10 is also provided with a fixing round hole. The inner side of the buckle 9 is provided with a groove, and the bracket 10 is provided with a square block connected to the buckle 9, and the two sides of the block are respectively arranged in steps, and the block can be connected with the buckle 9, and the bracket 10 is also provided with There are screw holes, and the sides of the buckle 9 and the block are also provided with screw holes. When the two are installed together, they can be fixed together with screws, which enhances the stability of the equipment. The bracket 10 can also be installed on the vertical wall through the fixing round hole, and the holographic advertising machine is connected with the bracket 10 through the buckle 9, so that it does not take up space when installed on the wall, and the stability of the motor 12 when it rotates is also enhanced. In this embodiment, the housing 8 is configured to accommodate the protection motor 1 . During the working process, the motor 1 in the holographic advertising machine will keep rotating, and the relative motion between the stator and the rotor of the motor 1 will generate a lot of heat. At the same time, the current passing through the internal coil of the motor 1 will also generate heat. The side wall is also provided with a strip-shaped cooling port 11, which is beneficial to the dissipation of heat and improves the working stability and service life of the motor 1.

In the above embodiment, the holographic advertising machine also includes a second control board 12 connected to the motor 1 and the second coil 7 respectively, and a power interface 13 arranged on the bottom surface of the casing 8, the power interface 13 is connected to the second control board 12, The power interface 13 and the second control board 12 are also connected to a power supply assembly disposed inside the casing, and the power supply assembly is used to supply power to the holographic advertising machine. The second control board 12 is connected with the motor 1 for controlling the rotation of the motor 1 and can also supply power to the second coil 7 to generate a magnetic field. The power interface 13 provided on the bottom surface of the casing 8 is connected to the second control board 12 . As an advertisement display device, the holographic advertising machine has the requirement of long working hours. Therefore, an external power supply is required, and the power interface 13 provided on the housing 8 can be connected to the external power supply, and the external power supply supplies power to the second control board 12, which then drives the operation of the holographic advertising machine. When the holographic advertising machine is in use, it may encounter a working environment without an external power supply. A power supply component can be installed inside the casing 8, and the power supply component includes a rechargeable battery. The rechargeable battery is connected to the second control board 12 for powering the hologram The advertising machine supplies power, and at the same time, the battery can be charged directly through the power interface 13 after the power is used up. The arrangement of the power interface 13 and the power supply components in this embodiment enables the holographic advertising machine to be connected to the internal power supply and the external power supply, increasing the use time.

In the above embodiment, the holographic advertising machine also includes an infrared remote controller capable of issuing instructions, and an infrared communication module arranged on the first control board 3 for receiving instructions, and the infrared communication module is also electrically connected with the data reading device. The infrared remote control can be used to control the switching of the multimedia files being played. There is a switching button on the infrared remote controller. When the switching button is pressed against the holographic advertising machine, the infrared remote controller will send out an infrared signal. After the infrared communication module receives the infrared signal, it will control the data reading device to interpret the next multimedia message in the memory card. file, and then the microprocessor controls each illuminant on the LED light to turn on and off at different rotation positions, and play the corresponding image or video. The setting of the infrared remote control enables the user to switch the playback content without directly contacting the holographic advertising machine, and the operation is convenient.

The present invention also proposes a method for displaying 3D images of a holographic advertising machine, referring to FIG. 3 , including the following steps:

Step S10 scales the imported multimedia file and sets its playing position in the holographic advertising machine to form a multimedia file to be played; the rotation plane formed by the LED light bar when rotating is the display screen of the holographic advertising machine, and the display screen of the holographic advertising machine is played. Before the file, the frame of the multimedia file can be adjusted, so that the multimedia file can be completely placed in the circular display with the largest frame, and the frame can also be enlarged, and the display only shows the fixed area of the frame. content. Determine the playing area of the multimedia file in the full advertising machine, and then convert and extract the format of the multimedia file.

When the multimedia file to be played is read in step S20, the multimedia file to be played is analyzed, and the illuminant at the corresponding position in the rotating state is controlled to emit light according to the preset size and playback position, so as to form a 3D image. The graphic or video playback of the holographic advertising machine depends on the microprocessor to control the illuminant to emit light, so the multimedia file needs to be analyzed by the data reading device, and the data reading device converts the above-mentioned image or video file into An instruction set including the position coordinates of the illuminant and the luminous color is transmitted to the microprocessor. During the rotation process of the luminous body, its coordinate information is constantly changing. The sensor detects the real-time coordinate information of each luminous body and transmits it to the microprocessor. Control the position of the illuminant to emit light of different colors, thereby forming an image or video on the rotating surface of the illuminant.

In the above example, with reference to Fig. 4, the imported multimedia file is scaled and its playback position in the illuminant is set, and the steps of forming the multimedia file to be played include:

Step S11 adjusts the display position and display size of the imported multimedia files; opens the content production software on the computer, and imports the files to be played into the software background. Open the production software, click the "import video" button on the software's operation interface, select the video content to be displayed, and support mp4, avi, rmvb and other formats. After the file is imported, enter the frame adjustment interface, and there is a red circle in the middle of the interface representing the size of the display screen; click "enlarge picture" or "zoom out picture" to adjust the frame size of the content to be displayed, and move it to the red circle, you can Reduce the frame size of the displayed content to the state where the entire red circle can be completely displayed, or enlarge the frame size to display a part of the image or video content in the red circle, and finally click "OK" to complete the confirmation of the display size of the playback content.

Step S12 converts the format of the imported multimedia file and embeds the identity mark. After determining the size of the display content, select the time period of the video to be displayed, click "Start Screenshot", drag the time axis representing the video content, and capture the content in a certain time period as the display content. Then click "Format Conversion" and the software will automatically convert the format of the intercepted video segment, and implant an ID into the file during the conversion process. After the file format conversion is complete, click "Download" to save the processed file to the data storage device.

In the above example, before executing the step of reading the multimedia file to be played, it further includes: authenticating the data storage device connected to the socket, and reading the multimedia file therein after passing the authentication. In order to ensure the playback rights of the holographic advertising machine, the produced files must pass verification before they can be authorized. In the embodiment of this city, the preferred TF card is used as the data storage device. The commonly used TF card is provided with 8 pins, and different pins correspond to different functional modules. The contacts connected by pins only read the fixed modules of the TF card to verify and distinguish other TF cards.

The present invention is applicable to places such as exhibition halls, exhibitions, museums, planning halls, science museums, shopping malls, experience stores, offline chain stores, etc., and is used for playing images or video content, and has a wide viewing angle and can also form a suspended display effect. Easy to install, plug and play, content creation is also very fast.

The above specific embodiments have further described the technical problems, technical solutions and beneficial effects solved by the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (10)

1. A holographic advertising machine, characterized in that it comprises: motor; blades connected to the motor; a first control board located within the blade; an LED light bar arranged on the surface of the blade and connected to the first control board; The LED light bar includes several illuminants, the first control board is provided with a data reading device, a microprocessor and a sensor, the data reading device is used to read multimedia files, and the sensor is used to detect blade rotation When the position of the luminous body is located, the microprocessor is used to analyze the multimedia file to be played when it reads the multimedia file to be played, and control the corresponding position in the rotating state according to the preset size and playback position The luminous body emits light to form a 3D image. 2. The holographic advertising machine according to claim 1, wherein the data reading device comprises: A plug interface, the plug interface can be connected with an external data storage device; The authentication module is used for authenticating the data storage device connected to the socket, and notifying the data reading device to read the multimedia files therein after the authentication is passed. 3. The holographic advertising machine according to claim 1, further comprising a wireless power supply device for supplying power to the control board, the wireless power supply device comprising a first coil arranged in the blade and a first coil arranged in the The second coil on the motor. 4. The holographic advertising machine according to claim 1, wherein the data reading device comprises a wireless receiving module for receiving external multimedia files. 5. The holographic advertising machine according to claim 1, further comprising a casing for frame-connecting the motor, the bottom surface of the casing is provided with a fixing device, and the side wall of the casing is also provided with There are strip cooling vents. 6. The holographic advertising machine according to claim 5, further comprising a second control board respectively connected to the motor and the second coil, and a power interface provided on the bottom surface of the casing, the The power interface is connected to the second control board, and the power interface and the second control board are also connected to a power supply assembly disposed inside the housing, and the power supply assembly is used to supply power to the holographic advertising machine. 7. The holographic advertising machine according to claim 2, further comprising an infrared remote controller capable of transmitting instructions, and an infrared communication module arranged on the first control board for receiving the instructions, the The infrared communication module is also electrically connected with the data reading device. 8. A method for displaying 3D images of a holographic advertising machine, comprising the following steps: Scale the imported multimedia file and set its playback position in the holographic advertising machine to form a multimedia file to be played; When the multimedia file to be played is read, the multimedia file to be played is analyzed, and the illuminant at the corresponding position in the rotating state is controlled to emit light according to the preset size and playback position, so as to form a 3D image. 9. The method for displaying 3D images of a holographic advertising machine as claimed in claim 8, wherein said zooming process is performed on the imported multimedia file and setting its playback position in the illuminant to form the multimedia file to be played. Steps include: Adjust the display position and display size of the imported multimedia files; Convert the format of imported multimedia files and embed identity marks. 10. The method for displaying a 3D image of a holographic advertising machine according to claim 8, further comprising: before performing the step of reading the multimedia file to be played: Authenticate the data storage device connected to the socket, and read the multimedia files therein after the authentication is passed.