CN108924524B - Projector based on mobile network - Google Patents
Projector based on mobile network Download PDFInfo
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- CN108924524B CN108924524B CN201811107400.7A CN201811107400A CN108924524B CN 108924524 B CN108924524 B CN 108924524B CN 201811107400 A CN201811107400 A CN 201811107400A CN 108924524 B CN108924524 B CN 108924524B
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- 238000006243 chemical reaction Methods 0.000 claims description 15
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a projector based on a mobile network, which comprises a central processing unit, a projection unit, a mobile network radio frequency transceiver unit and a main control unit, wherein the main control unit is connected with the central processing unit, the projection unit is connected with the central processing unit, and the central processing unit is connected with the mobile network radio frequency transceiver unit. According to the invention, the mobile network radio frequency transceiver unit receives the video signal, and the video signal is not required to be acquired in a mode of connecting an interface, so that the problem that the video source equipment is required to be frequently plugged and unplugged in the traditional projector is solved, and the mobile network radio frequency transceiver unit is more convenient and portable to use.
Description
Technical Field
The invention relates to the field of communication, in particular to a projector based on a mobile network.
Background
The projector, also called projector, is a device capable of projecting images or videos onto a curtain, and the existing projector is generally connected with a computer, a storage device, a game machine, a DV and the like through different interfaces (USB interfaces, HDMI interfaces and the like) to play corresponding video signals, however, the projector is inconvenient to use because a video input source is plugged and unplugged every time the projector is used.
For this reason, it is necessary to invent an apparatus to solve the above-mentioned problems.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, it is an object of the present invention to provide a mobile network based projector that receives video signals over a mobile network.
The technical scheme adopted by the invention is as follows:
the projector based on the mobile network comprises a central processing unit, a projection unit, a mobile network radio frequency transceiver unit and a main control unit, wherein the main control unit is connected with the central processing unit, the input end of the projection unit is connected with an output end unit connected with the central processing unit, and the central processing unit is connected with the mobile network radio frequency transceiver unit.
Preferably, the projector based on the mobile network further comprises an audio power amplification unit, wherein the input end of the audio power amplification unit is respectively connected with the output end of the main control unit and the output end of the central processing unit.
Preferably, the projector based on the mobile network further comprises a first power management module, wherein the output end of the first power management module is respectively connected with the input ends of the central processing unit, the projection unit, the mobile network radio frequency transceiver unit and the main control unit.
Preferably, the projector based on the mobile network further comprises a wireless unit, wherein the wireless unit is connected with the central processing unit and comprises a Beidou module and/or a GLONASS module and/or a GPS module and/or a WiFi module and/or a Bluetooth module.
Preferably, a projection unit of a projector based on a mobile network includes a video conversion unit, a video processing unit, a digital controller and an optical machine, wherein an input end of the video conversion unit is connected with an output end of the central processing unit, an output end of the video conversion unit is connected with an input end of the video processing unit, an output end of the video processing unit is connected with an input end of the digital controller, and an output end of the digital controller is connected with an input end of the optical machine.
Preferably, the projection unit further comprises a second power management unit, and the second power management unit is connected with the digital controller.
Preferably, the video conversion unit and the video processing unit are connected by HDMI direct connection.
Preferably, the projector based on the mobile network further comprises a communication unit, wherein the communication unit is connected with the central processing unit and used for audio-video call or audio-video conference.
Preferably, the projector based on the mobile network further comprises a communication unit and a storage unit, wherein the storage unit is connected with the central processing unit.
The beneficial effects of the invention are as follows: the invention discloses a projector based on a mobile network, which comprises a central processing unit, a projection unit, a mobile network radio frequency transceiver unit and a main control unit, wherein the mobile network radio frequency transceiver unit is used for receiving video signals, and the projection unit is used for displaying pictures of the video signals, so that the problem that the traditional projector can only acquire the video signals in a mode of connecting an interface and needs to frequently plug video source equipment is solved, and the projector is more convenient and portable to use.
Meanwhile, the invention also integrates an audio power amplifier unit, solves the problem that the traditional projector can only amplify video images but can not amplify sound signals, and is more integrated.
Drawings
Fig. 1 is a schematic structural diagram of a projector embodiment based on a mobile network according to the present invention.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
As shown in fig. 1, the projector based on the mobile network comprises a central processing unit, a projection unit, a mobile network radio frequency transceiver unit and a main control unit, wherein the main control unit is connected with the central processing unit, the projection unit is connected with the central processing unit, and the central processing unit is connected with the mobile network radio frequency transceiver unit.
The main control unit can adopt STM32 series chip, and during standby state, the main control unit is in the state of always opening, and the main control unit receives infrared signal, wakes up central processing unit, and main control unit and central processing unit pass through serial ports UART communication, and mobile network radio frequency transceiver unit passes through mobile network and receives video signal, and central processing unit sends the video signal processing back of mobile network receipt to the projection unit and shows, need not to connect storage device through USB or HDMI interface like traditional projecting apparatus and receive video signal for the use of a projecting apparatus based on mobile network is more high-efficient, convenient.
In this embodiment, a projector based on a mobile network further includes an audio power amplification unit, where input ends of the audio power amplification unit are respectively connected with output ends of the main control unit and the central processing unit. The audio power amplification unit can adopt an NTP8204 chip, can adopt an I2C bus to connect with the main control unit, the main control unit sends control signals to the audio power amplification unit, the audio power amplification unit is connected with the central processing unit through the I2S bus, and the central processing unit sends audio signals to the audio power amplification unit. The invention integrates the audio power amplifier unit, does not need an external sound source, integrates the equipment more and is convenient to use.
In this embodiment, the mobile network-based projector further includes a first power management module (not shown in the figure), where output ends of the power management module are respectively connected to input ends of the central processing unit, the mobile network radio frequency transceiver unit, and the main control unit. The power management module can adopt an MT6357 power supply processing chip to supply power for other modules.
In this embodiment, the mobile network-based projector further includes a wireless unit, where the wireless unit is connected to the central processing unit, and the wireless unit includes a beidou module and/or a GLONASS module and/or a GPS module and/or a WiFi module and/or a bluetooth module. The Bluetooth sound box can be connected with the Bluetooth module, the Bluetooth sound box can be connected with the Internet through the WiFi module, flow cost is saved, the terminal can be positioned through the Beidou module and/or the GLONASS module, and the Bluetooth sound box is rich in wireless interface, so that the function expansion of the later stage is facilitated.
In this embodiment, the projection unit of the projector based on the mobile network includes a video conversion unit, a video processing unit, a digital controller and an optical machine, where an input end of the video conversion unit is connected to an output end of the central processing unit, an output end of the video conversion unit is connected to an input end of the video processing unit, an output end of the video processing unit is connected to an input end of the digital controller, and an output end of the digital controller is connected to an input end of the optical machine.
The video conversion unit can adopt an LT8912 type chip, convert video signals in an MIPI interface format sent by the central processing unit into video signals in an HDMI interface format, the video processing unit can adopt a V56 type chip, convert input HDMI signals into RGB signals and send the RGB signals to the digital controller, the digital controller can adopt a DLP3435 type chip for supporting reliable operation of a Digital Micromirror Device (DMD), low-power consumption display application with small external dimensions is realized, and the digital controller provides a convenient multifunctional energy interface between user electronic equipment and the DMD, converts the RGB signals into LVDS signals and inputs the LVDS signals to the DMD. The video processing unit may also receive the video signal sent back from the HDMI interface, the video processing unit sends a signal to the central processing unit through the I2S bus, and the central processing unit sends a signal to the video processing unit through the UART bus.
The video conversion unit is connected with the video processing unit through an HDMI wire, and a direct connection mode is adopted in an installation process instead of the traditional HDMI socket for plugging, so that the device can be lighter and thinner.
The projection unit further comprises a second power management unit, and the second power management unit is connected with the digital controller.
The second power management unit can adopt a PAD3000 power management chip, is connected with a DLP3435 type chip of the digital controller through an SPI bus, supplies power to the digital controller and the DMD, and improves the power supply efficiency.
The projector based on the mobile network in this embodiment further includes a communication unit, where the communication unit is connected to the central processing unit, and is used for audio-video call or audio-video conference.
The projector based on the mobile network in the embodiment is small in size and light in weight, and is provided with the communication unit, so that the projector is very suitable for participating in video conferences in an outdoor operation environment.
The projector based on the mobile network in the embodiment further comprises a storage unit, and the storage unit is connected with the central processing unit. A projector based on a mobile network can store video files in the local machine in advance and play the video files when needed.
The projector based on the mobile network has the advantages of small volume and light weight, can receive video signals through the mobile network, supports the dialing of audio and video calls and video conferences, overcomes the defect that the traditional projector needs to be frequently connected with a video source, and can be widely applied to mobile or outdoor scenes.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.
Claims (4)
1. The projector based on the mobile network is characterized by comprising a central processing unit, a projection unit, a mobile network radio frequency transceiver unit and a main control unit, wherein the main control unit is connected with the central processing unit, the projection unit is connected with the central processing unit, and the central processing unit is connected with the mobile network radio frequency transceiver unit;
the projection unit comprises a video conversion unit, a video processing unit, a digital controller and a light machine, wherein the input end of the video conversion unit is connected with the output end of the central processing unit, the output end of the video conversion unit is connected with the input end of the video processing unit, the output end of the video processing unit is connected with the input end of the digital controller, and the output end of the digital controller is connected with the input end of the light machine; the video conversion unit converts the video signal in the MIPI interface format sent by the central processing unit into a video signal in the HDMI interface format, and the video processing unit converts the video signal in the HDMI interface format output by the video conversion unit into an RGB signal and sends the RGB signal to the digital controller;
the projector also comprises an audio power amplification unit, wherein the input end of the audio power amplification unit is respectively connected with the output end of the main control unit and the output end of the central processing unit;
the projector also comprises a first power management module, wherein the output end of the first power management module is respectively connected with the input ends of the central processing unit, the mobile network radio frequency transceiver unit and the main control unit;
the projection unit further comprises a second power management unit, and the second power management unit is connected with the digital controller; the video conversion unit is connected with the video processing unit through an HDMI direct connection mode.
2. The projector according to claim 1, further comprising a wireless unit, wherein the wireless unit is connected to the central processing unit, and the wireless unit comprises a Beidou module and/or a GLONASS module and/or a GPS module and/or a WiFi module and/or a Bluetooth module.
3. The mobile network-based projector of claim 1, further comprising a communication unit coupled to the central processing unit for audio-video calls or conferences.
4. The mobile network-based projector of claim 1, further comprising a memory unit, the memory unit being coupled to the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107400.7A CN108924524B (en) | 2018-09-21 | 2018-09-21 | Projector based on mobile network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107400.7A CN108924524B (en) | 2018-09-21 | 2018-09-21 | Projector based on mobile network |
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| CN108924524A CN108924524A (en) | 2018-11-30 |
| CN108924524B true CN108924524B (en) | 2024-04-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109767708A (en) * | 2019-01-27 | 2019-05-17 | 上海阳霖文化传媒发展有限公司 | All-in-one machine is launched in outdoor advertising automatically |
| CN114584749A (en) * | 2022-03-17 | 2022-06-03 | 宏立信（厦门）科技有限公司 | Projection equipment and projection control method |
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| CN108924524A (en) | 2018-11-30 |
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