Matte spraying 3D (three-dimensional) projection method, device and system

Abstract

The invention relates to the technical field of fog screen three-dimensional projection, and provides a fog face spraying three-dimensional projection method, device and system which comprises a spraying module, a control module and a projection module. According to the specific working mode, the control module controls the mist spraying module to spray a mist face, meanwhile, the control module sends a stereoscopic projection synchronizing signal to the projection module, and the projection module continuously switches and projects corresponding images within the short time when the mist face is sprayed out and moves forwards according to the synchronizing signal sent by the control module. The refreshing is one-time complete refreshing of the 3D stereo projection; by intermittently and rapidly spraying the foggy surface and projecting the corresponding image, the 3D image can be watched from any angle by utilizing the persistence of vision. The technical route is easy to implement, the 3D projection effect is good, and large-format 3D projection can be achieved through array arrangement.

Description

Technical Field

[0001] The present invention relates to the technical field of fog screen stereoscopic projection, and particularly relates to a fog surface spraying 3D stereoscopic projection method, device and system. Background Art

[0002] Fog screen projection is a technology that uses a fog screen as a projection carrier and has an illusory three-dimensional effect. Fog screen projection is widely used in places such as science and technology exhibitions, parks, and museums. Since the fog screen has a certain light transmittance, the picture will produce a three-dimensional 3D floating feeling. The audience can freely shuttle through the image without affecting the image display, achieving the illusory effect of real people and the picture dancing on the same stage. However, in the existing fog screen projection technology and the similar water screen projection technology, the projection picture can only present a 3D effect and cannot achieve a 3D stereoscopic image when viewed from any angle. Summary of the Invention

[0003] In order to achieve a 3D stereoscopic image when viewed from any angle, the present invention provides a fog surface spraying 3D stereoscopic projection method, device and system.

[0004] A fog surface spraying 3D stereoscopic projection method includes: a spraying module, a control module, and a projection module; wherein, the nozzles of the spraying module adopt fog surface spraying nozzles (such as solid cone fog surface spraying nozzles, solid rectangle fog surface spraying nozzles, etc.); the control module is respectively connected to the spraying module and the projection module;

[0005] The steps of the fog surface spraying 3D stereoscopic projection method are as follows:

[0006] The control module controls the spraying module to spray out a fog surface. At the same time, the control module sends a stereoscopic projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, within the short time when the fog surface is sprayed out and moves forward, the projection module continuously switches and projects the corresponding images. This is a complete refresh of the 3D stereoscopic projection; by intermittently and quickly spraying out the fog surface and projecting the corresponding images, using the visual persistence phenomenon, a 3D stereoscopic image can be achieved when viewed from any angle.

[0007] Preferably, the method includes that the time interval for the control module to control the spraying module to intermittently spray out the fog surface = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second, and the refresh rate needs to ensure that a complete 3D stereoscopic image can be formed using the visual persistence phenomenon; the spraying speed of the nozzles needs to ensure that a complete refresh can be completed within the time interval of intermittently spraying out the fog surface.

[0008] A spray module, comprising: a matte spray nozzle, including but not limited to a solid cone matte spray nozzle, a solid rectangle matte spray nozzle; an atomization assembly, including but not limited to an acoustic wave atomization assembly (such as an ultrasonic piezoelectric ceramic atomizer including a liquid supply passage, etc.), a pressure atomization assembly (such as an electromagnetic pump pressurized atomizer including a liquid supply passage, etc.), a medium atomization assembly (such as a compressed air atomizer including a liquid supply passage, etc.), a vibrating sieve / vibrating plate atomization assembly (such as an electric vibrating sieve atomizer including a liquid supply passage, etc.), an electrostatic atomization assembly (such as a DC high voltage electrostatic atomizer including a liquid supply passage, etc.), an electrothermal atomization assembly (such as a thin film resistor atomizer including a liquid supply passage, etc.); a start-stop controller, configured to receive a spray start-stop signal and control the operation of the atomization assembly.

[0009] Preferably, the spray module performs intermittent spraying, the spraying frequency is not less than 10 Hz; the spray shape is a solid matte surface; the spray particle size scale belongs to the micron level or a larger level.

[0010] A projection module, comprising: an image processor, configured to receive stereoscopic image data and a stereoscopic projection synchronization signal, and process the stereoscopic image data to obtain a required projected image; a projection assembly, including but not limited to a laser array projection assembly, a dot laser light source and a MEMS galvanometer projection assembly, an LED / laser light source and a DMD chip projection assembly.

[0011] Preferably, the stereoscopic projection synchronization signal received by the projection module is a pulse signal, and the frequency of the stereoscopic projection synchronization signal is not less than 10 Hz.

[0012] A matte spray 3D stereoscopic projection device, comprising the above spray module, the above projection module, and a control module; wherein, the control module includes but not limited to a single-chip microcomputer controller, a programmable logic controller, and the control module is respectively connected to the spray module and the projection module; the control module controls the spray module to eject a matte surface, and at the same time, the control module sends a stereoscopic projection synchronization signal to the projection module. The projection module, according to the synchronization signal sent by the control module, continuously switches and projects corresponding images within a short time when the matte surface is ejected and moves forward. This is a complete refresh of the 3D stereoscopic projection; by intermittently and quickly ejecting the matte surface and projecting corresponding images, using the visual persistence phenomenon, a 3D stereoscopic image can be viewed from any angle.

[0013] Preferably, the device includes that the time interval for the control module to control the spray module to intermittently eject the matte surface = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second, and the refresh rate needs to ensure that a complete 3D stereoscopic image can be formed using the visual persistence phenomenon; the spraying speed of the nozzle needs to ensure that a complete refresh can be completed within the time interval of intermittently ejecting the matte surface.

[0014] A matte spray 3D stereoscopic projection system, including the above-mentioned matte spray 3D stereoscopic projection device and an interactive control platform; wherein, the interactive control platform is connected to the matte spray 3D stereoscopic projection device; the interactive control platform collects interactive signals and sends control instructions to the matte spray 3D stereoscopic projection device, and the matte spray 3D stereoscopic projection device adjusts the 3D stereoscopic image according to the control instructions, including but not limited to translating, rotating, and scaling the 3D stereoscopic image, thereby realizing interactive display.

[0015] Preferably, the input devices for the interactive control platform to collect interactive signals include but are not limited to: keyboards, mice, joysticks, touchscreens, microphones, cameras, inertial measurement units (IMUs), ultrasonic receivers, infrared light receivers, and wireless communication receivers.

[0016] Optionally, the matte spray 3D stereoscopic projection system may further include a light-transmitting cover with a visible light transmittance higher than 80%, which is used to weaken the interference of external environmental factors (such as strong winds, etc.) on the matte spray 3D stereoscopic projection system, and at the same time will not have too much impact on the viewing effect.

[0017] The advantages of the present invention are: the present invention realizes that the 3D stereoscopic image can be viewed from any angle and can interact with the 3D stereoscopic image; in practical applications, the present invention can be used in fields such as medical treatment, game entertainment, military sand tables, and science and technology exhibitions, which has a promoting effect on production, life, and social development; the present invention takes matte spray as the core, and proposes a matte spray 3D stereoscopic projection method, device, and system, with a simple technical route, good 3D stereoscopic projection effect, and can also achieve large-format 3D stereoscopic projection through array arrangement. Description of the Drawings

[0018] Figure 1 It is a simplified schematic diagram of an embodiment of the present invention.

[0019] Description of the reference numerals: 1 - solid conical matte spray nozzle, 2 - electromagnetic pump supercharger, 3 - electromagnetic pump start-stop controller, 4 - image processor, 5 - projection device using a laser light source and a DMD chip projection component, 6 - single-chip microcomputer controller, 7 - touch screen, 8 - water container, 9 - water pipe, 10 - acrylic cover, 11 - matte surface sprayed by the nozzle. Detailed Embodiments

[0020] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The following only describes one embodiment of the present invention and is not intended to limit the scope of protection of the claims of the present invention. At the same time, the following description should be understandable and implementable by those skilled in the relevant technical fields. Therefore, all other equivalent changes completed based on the content disclosed in the present invention, or all other embodiments obtained without creative labor, should be included within the scope covered by the claims of the present invention. The present invention will be described in detail below in conjunction with the embodiments.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged or combined under appropriate circumstances for the embodiments of the present invention described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] An embodiment of a matte spray 3D stereoscopic projection method, device and system, refer to Figure 1 , including a spray module (solid conical matte spray nozzle 1, electromagnetic pump supercharger 2, electromagnetic pump start-stop controller 3, water container 8, water pipe 9), a projection module (image processor 4, projection device 5 using a laser light source and DMD chip projection component), a control module (single-chip microcomputer controller 6), an interactive control platform (touch screen 7), a light-transmitting cover (acrylic cover 10); wherein, the control module is respectively connected to the spray module and the projection module; the control module controls the spray module to spray out a matte surface (matte surface 11 ejected by the nozzle). At the same time, the control module sends a stereoscopic projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, within the short time when the matte surface is ejected and moves forward, the projection module continuously switches and projects the corresponding images, which is a complete refresh of the 3D stereoscopic projection; by intermittently and quickly spraying out the matte surface and projecting the corresponding images, using the persistence of vision phenomenon, a 3D stereoscopic image can be realized when viewed from any angle.

[0023] Preferably, the control module controls the spray module to intermittently spray the fog surface at a time interval = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second, and the refresh rate should ensure that a complete 3D stereoscopic image can be formed using the persistence of vision phenomenon; the spraying speed of the nozzle should ensure that a complete refresh can be completed within the time interval of intermittently spraying the fog surface; for easy understanding, the refresh rate of 25 Hz is used for illustration. The time interval for the spray module to intermittently spray the fog surface = 1 / 25 Hz = 0.04 s, that is, a fog surface is sprayed every 40 ms; the spraying speed of the nozzle should ensure that a complete refresh can be completed within the time interval of intermittently spraying the fog surface.

[0024] Preferably, the interactive signal can be collected through the touch screen 7, and according to the interactive control instruction, the 3D stereoscopic image can be adjusted, including but not limited to translating, rotating, and scaling the 3D stereoscopic image, so as to realize interactive display.

[0025] Optionally, the acrylic cover 10 can also be used to weaken the interference of external environmental factors (such as strong wind, etc.) on the 3D stereoscopic projection image, and at the same time, it will not have too much impact on the viewing effect.

[0026] The advantages of the present invention are as follows: The present invention realizes that the 3D stereoscopic image can be viewed from any angle and can interact with the 3D stereoscopic image; in practical applications, the present invention can be used in the fields of medical treatment, game entertainment, military sand table, science and technology exhibition, etc., which has a promoting effect on production, life and social development; the present invention takes the fog surface spray as the core, and proposes a fog surface spray 3D stereoscopic projection method, device and system, with a simple technical route, good 3D stereoscopic projection effect, and can also realize large-format 3D stereoscopic projection through array arrangement.

Claims

1. A method for matte spray 3D stereoscopic projection, characterized in that, Including: A spray module, a control module, and a projection module; wherein, the nozzle of the spray module uses a matte spray nozzle; the control module is respectively connected to the spray module and the projection module; The steps of the matte spray 3D stereoscopic projection method are as follows: The control module controls the spray module to spray out a matte surface. At the same time, the control module sends a stereoscopic projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, within the short time when the matte surface is sprayed out and moves forward, the projection module continuously switches and projects the corresponding images. This is a complete refresh of the 3D stereoscopic projection; by intermittently and quickly spraying out the matte surface and projecting the corresponding images, using the persistence of vision phenomenon, a 3D stereoscopic image can be viewed from any angle.

2. The method for matte spray 3D stereoscopic projection according to claim 1, wherein The method includes that the time interval for the control module to control the spray module to intermittently spray out the matte surface = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second, and the refresh rate needs to ensure that a complete 3D stereoscopic image can be formed using the persistence of vision phenomenon; the spraying speed of the nozzle needs to ensure that a complete refresh can be completed within the time interval of intermittently spraying out the matte surface.

3. A spray module, characterized in that, Including: A matte spray nozzle, including but not limited to a solid cone matte spray nozzle and a solid rectangle matte spray nozzle; An atomization component, including but not limited to an ultrasonic piezoelectric ceramic atomization component, an electromagnetic pump pressurization atomization component, and a vibrating sieve hole / vibrating sheet atomization component; A start-stop controller, used to receive a spray start-stop signal and control the operation of the atomization component.

4. The spray module according to claim 3, wherein, The spray module sprays intermittently, and the spray frequency is not less than 10 Hz; the spray shape is a solid matte surface; the spray particle size scale belongs to the micron level or a larger level.

5. A projection module, characterized in that, Including: An image processor, used to receive stereoscopic image data and a stereoscopic projection synchronization signal, and process the stereoscopic image data to obtain the required projected image; A projection component, including but not limited to a laser array projection component, an LED / laser light source, and a DMD chip projection component.

6. The projection module according to claim 5, characterized in that, The stereoscopic projection synchronization signal received by the projection module is a pulse signal, and the frequency of the stereoscopic projection synchronization signal is not less than 10 Hz.

7. A matte spray 3D stereoscopic projection device, characterized in that, Including: The spray module according to claim 3, the projection module according to claim 5, and a control module; wherein, the control module includes but not limited to a single-chip microcomputer controller, and the control module is respectively connected to the spray module and the projection module; the control module controls the spray module to spray out a matte surface. At the same time, the control module sends a stereoscopic projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, within the short time when the matte surface is sprayed out and moves forward, the projection module continuously switches and projects the corresponding images. This is a complete refresh of the 3D stereoscopic projection; by intermittently and quickly spraying out the matte surface and projecting the corresponding images, using the persistence of vision phenomenon, a 3D stereoscopic image can be viewed from any angle.

8. A matte spray 3D stereoscopic projection device according to claim 7, wherein The device includes that the control module controls the time interval for the spray module to intermittently spray the fog surface = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second, and the refresh rate needs to ensure that a complete 3D stereoscopic image can be formed by using the persistence of vision phenomenon; the spraying speed of the nozzle needs to ensure that a complete refresh can be completed within the time interval of intermittently spraying the fog surface.

9. A matte spray 3D stereoscopic projection system, characterized in that, Including: The fog surface spray 3D stereoscopic projection device and the interactive control platform described in claim 7; wherein, the interactive control platform is connected to the fog surface spray 3D stereoscopic projection device; the interactive control platform collects interactive signals and sends control instructions to the fog surface spray 3D stereoscopic projection device, and the fog surface spray 3D stereoscopic projection device adjusts the 3D stereoscopic image according to the control instructions, thereby realizing interactive display.

10. A matte spray 3D stereoscopic projection system according to claim 9, characterized in that, The input devices for the interactive control platform to collect interactive signals include but are not limited to: keyboards, mice, joysticks, touch screens, microphones, cameras.

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