Mist line spray projection method, device and system

Abstract

The invention relates to the technical field of fog screen projection, and provides a fog line spray projection method, device and system, and the device comprises a spray module, a control module and a projection module. Fog lines sprayed by the spraying module and light beams projected by the projection module are located on the same plane. According to the specific working mode, the control module controls the mist spraying module to spray a mist line, meanwhile, the control module sends a projection synchronizing signal to the projection module, and the projection module continuously switches and projects corresponding images within the short time when the mist line is sprayed out and moves forwards according to the synchronizing signal sent by the control module. The process is one-time complete refreshing of the mist projection of the mist line; by intermittently and quickly spraying out fog lines and projecting corresponding images, fog screen projection is realized by utilizing a persistence of vision phenomenon. According to the invention, water for fog screen projection can be saved, and compared with traditional rear projection type or front projection type fog screen projection, the occupied area of projection equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of fog screen projection, and particularly to a fog line spraying 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. However, in existing fog screen projection and similar water screen projection, due to the use of front projection or rear projection technology routes, the projection equipment not only occupies a large area, but also the water consumption of the fog screen or water screen is relatively large. Summary of the Invention

[0003] In order to solve the disadvantages of traditional projection technology, the present invention provides a fog line spraying projection method, device and system.

[0004] A fog line spraying projection method includes: a spraying module, a control module, and a projection module; wherein, the fog line ejected by the spraying module and the light beam projected by the projection module are in the same plane; the control module is respectively connected to the spraying module and the projection module;

[0005] The steps of the fog line spraying projection method are as follows:

[0006] The control module controls the spraying module to eject a fog line. At the same time, the control module sends a projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, within the short time when the fog line is ejected and moves forward, the projection module continuously switches and projects corresponding images. This is a complete refresh of the fog line spraying projection; by intermittently and quickly ejecting fog lines and projecting corresponding images, using the persistence of vision phenomenon, fog screen projection is realized.

[0007] Preferably, the method includes that the time interval for the control module to control the spraying module to intermittently eject fog lines = 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 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 ejecting fog lines.

[0008] A spray module, comprising: a fog line spray nozzle, including but not limited to a fan-shaped spray nozzle, a slit-shaped 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 fog line; 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 image data and a projection synchronization signal, and process the image data to obtain a required projected image; a projection assembly, including but not limited to an LED / Micro LED array projection assembly, a laser array projection assembly, a laser light source, and a MEMS galvanometer projection assembly.

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

[0012] A fog line spray 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 a microcomputer controller. The fog line sprayed by the spray module and the light beam projected by the projection module are in the same plane. The control module is respectively connected to the spray module and the projection module. The control module controls the spray module to spray a fog line. At the same time, the control module sends a 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 during the short time when the fog line is sprayed and moves forward. This is a complete refresh of the fog line spray projection. By intermittently and quickly spraying the fog line and projecting corresponding images, and utilizing the persistence of vision phenomenon, a fog screen projection is realized.

[0013] Preferably, the device includes that the time interval for the control module to control the spray module to intermittently spray the fog line = 1 / refresh rate, where the refresh rate is the number of complete refreshes per second. The refresh rate needs to ensure that a complete image can be formed by utilizing the persistence of vision phenomenon; the spraying speed of the nozzle spray needs to ensure that a complete refresh can be completed within the time interval of intermittently spraying the fog line.

[0014] A fog line spray projection system includes the above-mentioned fog line spray projection device and an interactive control platform; wherein, the interactive control platform is connected to the fog line spray projection device; the interactive control platform collects interactive signals and sends control instructions to the fog line spray projection device, and the fog line spray projection device adjusts the image according to the control instructions, including but not limited to translating, rotating, and scaling the image, so as to achieve 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, touch screens, microphones, cameras, inertial measurement units (IMUs), ultrasonic receivers, infrared light receivers, and wireless communication receivers.

[0016] The advantages of the present invention are: the present invention can not only save water for fog screen projection, but also reduce the floor area of the projection device compared with traditional rear projection or front projection fog screen projection, and can interact with images; in practical applications, the present invention can be used in fields such as education, medical treatment, game entertainment, and science and technology exhibitions, which has a promoting effect on production, life, and social development. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a simplified schematic diagram of an embodiment of the present invention.

[0018] Description of reference numerals: 1 - sector spray nozzle, 2 - electromagnetic pump supercharger, 3 - electromagnetic pump start-stop controller, 4 - image processor, 5 - projection device using a dot laser light source and a one-dimensional MEMS galvanometer projection module, 6 - microcomputer controller, 7 - touch screen, 8 - water container, 9 - water pipe, 10 - a fog line ejected from the nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The following only describes one embodiment of the present invention, and is not intended to limit the protection scope 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 in the scope covered by the claims of the present invention. The present invention will be described in detail below with reference to the embodiments.

[0020] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged or combined under appropriate circumstances so as to implement 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.

[0021] An embodiment of a fog line spray projection method, device and system is referred to Figure 1 , including a spray module (sector 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 dot laser light source and a one-dimensional MEMS galvanometer projection assembly), a control module (microcomputer controller 6), and an interactive control platform (touch screen 7)); wherein, the fog line ejected by the spray module and the light beam projected by the projection module are on the same plane, 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 fog line (fog line 10 ejected by the nozzle), and at the same time, the control module sends a projection synchronization signal to the projection module. The projection module, according to the synchronization signal sent by the control module, continuously switches and projects the corresponding image within a short time when the fog line is ejected and moves forward. This is a complete refresh of the fog line spray projection; by intermittently and quickly ejecting the fog line and projecting the corresponding image, and using the persistence of vision phenomenon, fog screen projection is realized.

[0022] Preferably, the time interval for the control module to control the spray module to intermittently eject the fog line = 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 image can be formed using the persistence of vision phenomenon; the spray speed of the nozzle needs to ensure that a complete refresh can be completed within the time interval of intermittently ejecting the fog line; for the sake of easy understanding, the refresh rate is described as 25 Hz. The time interval for the spray module to intermittently eject the fog line = 1 / 25 Hz = 0.04 s, that is, a fog line is ejected every 40 ms; the spray speed of the nozzle needs to ensure that a complete refresh can be completed within the time interval of intermittently ejecting the fog line.

[0023] Preferably, interactive signals can be collected through the touch screen 7, and the image can be adjusted according to the interactive control instructions, including but not limited to translating, rotating, and scaling the image, so as to realize interactive display.

[0024] The advantages of the present invention are as follows: The present invention can not only save water for fog screen projection, but also reduce the floor area of the projection equipment compared with traditional rear projection or front projection fog screen projection, and can interact with images; in practical applications, the present invention can be used in fields such as education, medical treatment, game entertainment, and science and technology exhibitions, which plays a promoting role in production, life and social development.

Claims

1. A mist line spray projection method, characterized in that: include: A spray module, a control module, and a projection module; wherein the mist line sprayed by the spray module and the light beam projected by the projection module are located on the same plane; and the control module is connected to the spray module and the projection module respectively; The steps of the mist line spray projection method are as follows: The control module controls the spray module to spray a mist line. At the same time, the control module sends a projection synchronization signal to the projection module. According to the synchronization signal sent by the control module, the projection module continuously switches and projects the corresponding image during the short time when the mist line is sprayed and moves forward. This is a complete refresh of the mist line spray projection. By spraying the mist line intermittently and quickly and projecting the corresponding image, the visual persistence phenomenon is used to realize the fog curtain projection.

2. A mist line spray projection method according to claim 1, characterized in that: The method includes: a control module controls a spray module to intermittently spray a mist line, and the time interval is 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 image can be formed by utilizing the persistence of vision phenomenon; the spray rate of the nozzle needs to ensure that a complete refresh can be completed within the time interval of the intermittent spraying of the mist line.

3. A spray module, characterized in that: include: Mist line spray nozzles, including but not limited to fan spray nozzles and slit strip nozzles; Atomization components, including but not limited to ultrasonic piezoelectric ceramic atomization components, electromagnetic pump booster atomization components, and vibrating mesh / vibrating sheet atomization components; The start-stop controller is used to receive the spray start-stop signal and control the operation of the atomization component.

4. A spray module according to claim 3, characterized in that: The spray module is intermittent spray, the spray frequency is not less than 10 Hz; the spray shape is a mist line; the spray particle size scale is micron level or larger.

5. A projection module, characterized in that: include: An image processor, used for receiving image data and a projection synchronization signal, and processing the image data to obtain a desired projection image; The projection component includes but is not limited to a laser array projection component, a laser light source and a MEMS galvanometer projection component.

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

7. A mist line spray projection device, characterized in that: include: The spray module according to claim 3, the projection module according to claim 5, and the control module; wherein the control module includes but is not limited to a single-chip microcomputer controller, the mist line sprayed by the spray module and the light beam projected by the projection module are located on the same plane, and the control module is connected to the spray module and the projection module respectively; the control module controls the spray module to spray a mist line, and at the same time, the control module sends a projection synchronization signal to the projection module, and the projection module continuously switches and projects the corresponding image in the short time when the mist line is sprayed and moves forward according to the synchronization signal sent by the control module, which is a complete refresh of the mist line spray projection; by intermittently and quickly spraying the mist line and projecting the corresponding image, the visual persistence phenomenon is utilized to achieve fog screen projection.

8. A mist line spray projection device according to claim 7, characterized in that: The device includes: a control module controls the spray module to intermittently spray mist lines at a time interval = 1 / refresh rate, the refresh rate is the number of complete refreshes per second, and the refresh rate needs to ensure that a complete image can be formed using the visual persistence phenomenon; the nozzle spray rate needs to ensure that a complete refresh can be completed within the time interval of the intermittent spraying of the mist lines.

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

10. A mist line spray 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: keyboard, mouse, handle / joystick, touch screen, microphone, and camera.

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