CN112312175A - Screen projector, wireless screen projecting method and conference system - Google Patents
Screen projector, wireless screen projecting method and conference system Download PDFInfo
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- CN112312175A CN112312175A CN201910680099.7A CN201910680099A CN112312175A CN 112312175 A CN112312175 A CN 112312175A CN 201910680099 A CN201910680099 A CN 201910680099A CN 112312175 A CN112312175 A CN 112312175A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
Abstract
The invention relates to a screen projector, a wireless screen projecting method and a conference system using the screen projector. The screen projector includes: a plug and play interface; the processor is electrically connected with the plug-and-play interface; the non-volatile memory is electrically connected with the processor and stores a screen capture application program, wherein the screen capture application program is used for being loaded to source equipment in wired connection with the plug-and-play interface through the processor so as to run on an operating system of the source equipment to perform screen capture operation to obtain screen projection picture data; and the human body induction module is electrically connected with the processor and is used for executing human body induction operation so as to trigger the processor to generate an enabling signal to enable the source equipment to transmit the screen projection picture data to the display equipment which is in network connection with the source equipment. The embodiment of the invention adopts a human body induction mode to trigger and start the screen projector, so that the screen projector does not need to be provided with a physical key, thereby prolonging the service life.
Description
Technical Field
The invention relates to the technical field of data transmission and display, in particular to a screen projector, a wireless screen projecting method and a conference system.
Background
In the related art, displaying contents on one screen on another screen is called screen projection, and screen projection technology is widely applied to occasions such as a work meeting, video education, home theater and the like. The media data played and displayed in the source equipment can be transmitted to a display screen of the display equipment to be played and displayed synchronously based on a screen projection technology; the source device is a device that projects media data onto a display device for synchronous playing and displaying, such as a Desktop computer (Desktop computer), a notebook computer, a mobile terminal, and the like. Currently, screen projection technologies are classified into a wired screen projection technology and a wireless screen projection technology, wherein the wireless screen projection technology is widely used because the wireless screen projection technology is not limited by the distance of wire connection.
The existing wireless screen projection technology is mainly characterized in that a wireless screen projector is in wired connection with source equipment, and media data in the source equipment is projected on a display equipment such as an LED conference screen in a wireless mode through the wireless screen projector by means of corresponding mechanical trigger operation of a user on the screen projector; although the screen projection can be realized, the screen projection operation is triggered by additionally pressing the physical key on the wireless screen projection device, so that the screen projection operation is laborious, and the physical key is easy to lose efficacy after being pressed for many times.
Disclosure of Invention
In order to overcome the defects and shortcomings in the related art, the embodiments of the present invention provide a screen projector, a wireless screen projecting method and a conference system.
In one aspect, a screen projector provided in an embodiment of the present invention includes: a plug and play interface; the processor is electrically connected with the plug-and-play interface; the non-volatile memory is electrically connected with the processor and stores a screen capture application program, wherein the screen capture application program is used for being loaded to source equipment in wired connection with the plug-and-play interface through the processor so as to run on an operating system of the source equipment to perform screen capture operation to obtain screen projection picture data; and the human body induction module is electrically connected with the processor and is used for executing human body induction operation so as to trigger the processor to generate an enabling signal to enable the source equipment to transmit the screen projection picture data to the display equipment which is in network connection with the source equipment.
In the embodiment, the screen is triggered to be opened in a human body induction mode, so that the screen projector does not need to be provided with physical keys, and the service life of the screen projector can be prolonged.
In one embodiment of the present invention, the screen projector further comprises: the wireless transceiver is electrically connected with the processor; the human body induction module is specifically used for executing human body induction operation to trigger the processor to generate an enabling signal to enable the source device to transmit the screen projection picture data to the processor through a human-computer interface device channel and then to transmit the screen projection picture data to the display device in a wireless mode through the wireless transceiver.
In an embodiment of the invention, the screen projector is not provided with a wireless transceiver, and the human body sensing module is specifically configured to perform a human body sensing operation to trigger the processor to generate an enable signal to enable the source device to transmit the screen projection image data to the display device in a wireless manner via the wireless transceiver of the source device itself.
In one embodiment of the present invention, the screen projector further comprises: a visual indicator electrically connected to the processor and configured to change state upon the processor generating the enable signal to indicate that the screen projector is currently in an on screen state.
In one embodiment of the present invention, an effective sensing distance of the human body sensing module is configured to be less than 10 cm.
On the other hand, the wireless screen projection method provided by the embodiment of the invention comprises the following steps: establishing communication connection with a source device through a plug-and-play interface so as to display a preset storage space of a screen projector to the source device and establish a Human Interface Device (HID) channel between the screen projector and the source device, wherein a screen capture application program is stored in the preset storage space; loading the screen capture application program to the source equipment so as to run the screen capture application program on an operating system of the source equipment to perform screen capture operation to obtain screen projection picture data; and responding to human body induction operation, triggering and generating an enabling signal to enable the source equipment to transmit the screen projection picture data to a processor of the screen projection device through the human-computer interface equipment channel, and then transmitting the screen projection picture data to display equipment which is in network connection with the source equipment through the screen projection device in a wireless mode through a wireless transceiver of the screen projection device.
In the embodiment, the screen is triggered to be opened in a human body induction mode, so that the screen projector does not need to be provided with physical keys, and the service life of the screen projector can be prolonged.
In one embodiment of the present invention, the human body sensing operation is a human body infrared sensing operation or a human body microwave sensing operation, and an effective sensing distance of the human body sensing operation is less than 10 cm.
In another aspect, an embodiment of the present invention provides a conference system, including: any one of the aforementioned screen projectors; and an LED display. The LED display includes: the adapter plate is provided with a dual-mode WiFi module and a plurality of network ports; the system control card is fixedly inserted into the adapter plate through a first plug-in component, an embedded processor for installing an operating system is arranged on the system control card, and the embedded processor is electrically connected with the dual-mode WiFi module through the first plug-in component; the display control card is fixedly inserted into the adapter plate through a second inserting component, the display control card is provided with an image processor and at least one Ethernet transceiver electrically connected with the image processor, the image processor is electrically connected with the embedded processor through the second inserting component, the adapter plate and the first inserting component, and the at least one Ethernet transceiver is electrically connected with the plurality of network ports through the second inserting component; the LED display screen is electrically connected with at least part of the plurality of network ports; wherein the LED display is used for establishing a communication connection with the source device as the display device when the dual-mode WiFi module operates in the AP mode.
The LED display in the conference system of the embodiment is provided with the dual-mode WiFi module, so that the dual-mode WiFi module can be applied to a wireless screen projection scene, and the screen projector is triggered to start the screen projection in a human body induction mode, so that the screen projector does not need to be provided with physical keys, and the service life of the screen projector is prolonged. Moreover, the split modular design of the adapter plate, the system control card and the display control card in the LED display is beneficial to improving the design flexibility of the whole hardware structure of the LED display.
In one embodiment of the invention, the image processor comprises a microcontroller and a programmable logic device electrically connected to the microcontroller, the at least one ethernet transceiver comprises a multi-port ethernet transceiver; the multi-port ethernet transceiver electrically connects the programmable logic device through a plurality of SerDes channels and electrically connects some or all of the plurality of ports through the second connector assembly, and each of the SerDes channels has two pairs of differential signal lines.
In one embodiment of the invention, the at least one ethernet transceiver further comprises a plurality of 5G ethernet transceivers; the plurality of 5G Ethernet transceivers are electrically connected with the second connector assembly and the programmable logic device through another plurality of SerDes channels; the multi-port ethernet transceiver is a multi-port gigabit ethernet transceiver chip, and each of the first and second patch modules is a pair of connectors having the same pin count.
In summary, the above technical solutions of the embodiments of the present invention have the following beneficial effects: the screen projector is triggered to start the screen projection in a human body induction mode, so that the screen projector does not need to be provided with physical keys, and the service life of the screen projector can be prolonged; and the LED display in the conference system is provided with the dual-mode WiFi module, so that the wireless screen projection device can be applied to a wireless screen projection scene, and the screen projection device is triggered to start the screen projection device in a human body induction mode, so that the screen projection device does not need to be provided with physical keys, and the service life of the screen projection device is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conference system according to an embodiment of the present invention.
Fig. 2A is a schematic diagram of an internal module of the screen projector shown in fig. 1.
Fig. 2B is a schematic diagram of an internal module of another screen projector according to an embodiment of the present invention.
Fig. 2C is a schematic diagram of an internal module of another screen projector according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an LED display according to an embodiment of the present invention.
FIG. 4 is a block diagram of a control card of the system shown in FIG. 3.
FIG. 5 is a block diagram of the display control card shown in FIG. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a conference system 10 suitable for wireless screen projection provided by an embodiment of the present invention includes: a source device 11, a screen projector 13 and a display device 15. The source device 11 is, for example, a notebook computer or other electronic device that is also equipped with a processor, a memory, and a display screen and is installed with an operating system (e.g., windows, Mac OS/X, Linux, Android, iOS, etc.) that can establish a network communication connection with the display device 15 in a wireless manner based on the screen projector 13.
As shown in fig. 2A, the screen projector 13 includes a human body sensing module 130, a Plug and Play (Plug and Play) interface 131, a processor 133, a wireless transceiver 135 and a non-volatile memory 137. The human body sensing module 130, the plug-and-play interface 131, the wireless transceiver 135 and the nonvolatile memory 137 are respectively electrically connected to the processor 133. The plug-and-play interface 131 is, for example, a PCI-Express interface, a PCMCIA (Personal Computer Memory Card International Association), an SDIO (Secure Digital Input and Output) interface, a USB (Universal Serial Bus) interface, etc., so that the screen projector 13 can be connected to the source device 11 through the plug-and-play interface 131 in a wired manner. The processor 133 is an electronic device such as a CPU, an FPGA (Field Programmable Gate Array), or the like. The wireless transceiver 135 is, for example, a WiFi module. The non-volatile memory 137 is, for example, a flash memory, and the preset storage space thereof stores, for example, configuration parameters and application programs, where the application programs include, for example, a screen capture application (or software code), a video data encoding and compressing application program, and even an encryption application program. The screen capture application is adapted to be loaded to the source device 11 via the processor 133, so as to run the screen capture application on the operating system of the source device 11 to perform a screen capture operation to obtain screen projection image data, such as video data in a video frame buffer of the source device 11; the adopted screen capture algorithm can be a virtual network computer algorithm, a remote desktop protocol algorithm and the like. The human body sensing module 130 is configured to perform a human body sensing operation to trigger the processor 133 to generate an enable signal to enable the energy device 11 to transmit the screen projection image data to the display device 15 connected to the source device 11 through a network. The display device 15 is adapted to receive the projected picture data transmitted from the source device 11 and display the projected picture data on its own display screen or in a projection manner.
As mentioned above, the human body sensing module 130 is, for example, a human body infrared sensor or a human body microwave sensor in the present embodiment. Taking a human body infrared sensor as an example, the working principle is as follows: a common human body can emit infrared rays with specific wavelength of about 10 micrometers (mum), when the infrared rays of the human body irradiate the human body infrared sensor (the human body infrared sensor usually adopts a pyroelectric element, the pyroelectric element loses charge balance when receiving the change of the infrared radiation temperature of the human body and releases charges outwards), the charges are released outwards due to the pyroelectric effect, and a subsequent circuit can generate a detection result signal after detection processing; it is sensitive only to infrared radiation with a wavelength of about 10 microns, so that objects other than the human body do not trigger the probe action. As a non-limiting example, the human body infrared sensor includes an infrared sensor controller, a light sensing circuit, a Fresnel lens, a silicon controlled trigger circuit with a time delay function, and the like.
In this way, when the user establishes the wired connection between the screen projector 13 and the source device 11 through the plug-and-play interface 131, the screen projector 13 draws power from the source device 11 and starts to operate. Firstly, the processor 133 runs the internal program through the plug-and-play interface 131, and the internal program is recognized as a Windows portable device by the source device 11 (for example, installed with a Windows operating system) and creates an HID channel with the source device 11, and the storage space containing the application program (or called upper computer program) inside can be recognized as a mobile disk under the root directory of "my computer", that is, the preset storage space of the screen projector 13 is displayed to the source device 11, so that the driver-free application program loading and self-starting can be realized. After the screen capture application program in the preset storage space is loaded to the source device 11 through the processor 133, the screen capture application program runs on the operating system of the source device 11 to perform screen capture operation to obtain screen projection image data, but if the source device 11 transmits the screen projection image data to the processor 133 through the HID channel or if the screen projection image data is sent to the display device 15 through a wireless transceiver of the source device such as a WiFi module, human body sensing operation of the human body sensing module 130, such as human body infrared sensing operation or human body microwave sensing operation, is required.
As described above, the human body sensing module 130 is used to sense whether a person approaches the screen in a close distance, and if the person approaches the screen projection device 13 in a close distance, for example, a palm approaches the screen projection device 13 in a close distance, the processor 133 is triggered to generate an enable signal, so that the energy device 11 transmits screen projection image data to the processor 133 through the HID channel, and then the wireless transceiver 135 transmits the screen projection image data to the display device 15 through the wireless transceiver 135 in a wireless manner, so that the display device 15 can perform screen projection image display according to the received screen projection image data, and the screen projection success is also started. In order to improve the sensing accuracy to avoid the false triggering, the effective sensing distance of the human body sensing module 130 is preferably designed to be less than 10 centimeters (cm). It should be noted that, since the display device 15 is configured as a Wireless Access Point (Wireless Access Point) after the system program is run, the Wireless transceiver 135 can establish a Wireless network communication connection with the display device 15, so that the display device 15 can receive the screen projection screen data transmitted by the screen projector 13 in a Wireless manner.
Thereafter, when the user does not need to project the screen, the screen projector 13 is unplugged from the source device 11, or the palm is again used to approach or touch the screen projector 13 to trigger the processor 133 to generate a disable signal to disable the source device 11 from transmitting the projected screen data to the outside. It should be noted that, in order to avoid a malfunction or enhance the user experience, the interval between the generation of the disable signal and the generation of the enable signal may be set in the processor 133, for example, after the generation of the enable signal is triggered, the disable signal is not generated even if the human body is sensed to be close again within several minutes, for example, within 5 minutes.
In addition, referring to fig. 2B, the screen projector of the present embodiment may also be provided with a visual indicator 139, such as an LED ring. The visual indicator 139 is electrically connected to the processor 133 and is configured to change state (e.g., in a blue or green display state) after the processor 133 generates the enable signal to indicate that the projector is currently in an on-state, or change state (e.g., in a red display state) after the processor 133 generates the disable signal to indicate that the projector is currently in an off-state or an off-state.
Furthermore, as shown in fig. 2C, in other embodiments, the screen projector itself may not be provided with a wireless transceiver, accordingly, after the human body sensing module 130 executes the human body sensing operation to trigger the processor 133 to generate the enabling signal, the energy device 11 transmits the screen projecting image data to the display device 15 in a wireless manner via the wireless transceiver of the source device 11 itself, and the wireless transceiver is not provided in the screen projector, so that the size of the screen projector can be effectively reduced, and the screen projector is further beneficial to miniaturization.
In summary, the embodiment of the invention adopts a human body sensing mode to open the screen or even close the screen, so that physical keys on the traditional screen projector can be removed, thereby prolonging the service life of the screen projector.
Referring to fig. 3, 4 and 5, an LED display 15a provided in an embodiment of the invention is illustrated as a specific implementation of the display device 15 in an embodiment of the invention; the present invention does not limit the display device 15 to an LED display. As shown in fig. 3, the LED display 15a includes: the adapter plate 151, the system control card 153, the display control card 155 and the LED display screen 157. In this embodiment, the separated modular design of the connection board 151, the system control card 153 and the display control card 155 in the LED display 15a is beneficial to improving the design flexibility of the overall hardware structure of the LED display 15 a.
The patch panel 151 is provided with a dual-mode WiFi module 1513 and a plurality of network ports 1515; the dual-mode WiFi module 1513 is, for example, a WiFi module capable of switching between an AP mode and a Station mode, and each port 1515 is, for example, an RJ45 port.
As can be seen from fig. 3 and 4, the system control card 153 has a plug-in module 1531 and an embedded processor 1533; the connector module 1531 is, for example, a pair of connectors with the same pin number, so that the system control card 153 is inserted and fixed to the interposer 151 through the connector module 1531; the embedded processor 1533 is, for example, an ARM processor installed with an operating system such as Android, and is electrically connected to the dual-mode WiFi module 1513 on the patch panel 151 through the plug assembly 1531.
As can be seen in fig. 3 and 5, the display control card 155 is provided with a connector assembly 1551, an image processor 1553 and a plurality of ethernet transceivers; the connector assembly 1551 is, for example, a pair of connectors with the same pin number, so that the display control card 155 is inserted and fixed to the adapter plate 151 through the connector assembly 1551; the image processor 1553 is electrically connected to the embedded processor 1533 on the system control card 153 via the connector assembly 1551, the interposer 151 and the connector assembly 1531. Image processor 1553 includes, for example, microcontroller 15531 and programmable logic device 15533 electrically connected to microcontroller 15531. The plurality of ethernet transceivers can include, for example, a multi-port ethernet transceiver 15551 and a 5G ethernet transceiver 15553, the multi-port ethernet transceiver 15551 can be electrically connected to the programmable logic device 15533 via a plurality of SerDes channels, e.g., two SerDes channels, and electrically connected to a plurality of network ports 1515 on the patch panel 151 via a connector assembly 1551, the 5G ethernet transceivers 15553 can be, for example, two and each 5G ethernet transceiver 15553 can be electrically connected to the programmable logic device 15533 via a SerDes channel, and electrically connected to a network port 1515 or a reserved network port mounting area (not shown) on the patch panel 151 via a connector assembly 1551. A single SerDes channel has, for example, two pairs of differential signal lines, while a multi-port ethernet transceiver 15551, for example, an eight-port gigabit ethernet transceiver chip, electrically connects the eight ports 1515 on the patch panel 151 through a patch assembly 1551. The display control card 155 of the embodiment is provided with the multi-port ethernet transceiver 15551 and electrically connected to the programmable logic device 15533 by using a SerDes channel, so that a larger output load capacity can be realized by using fewer pins of the programmable logic device (such as an FPGA), and a super-resolution LED display screen can be loaded; and the provision of 5G ethernet transceiver 15553 can further enhance the output load capability of display control card 155.
The LED display 157 is electrically connected to at least a part of the plurality of network ports 1515 of the adapter plate 151, for example, by a network cable connected to a part or all of the network ports 1515. Specifically, the LED display screen 157 includes, for example, a plurality of module controllers and a plurality of LED lamp panels electrically connected to the plurality of module controllers, and a single module controller is typically provided with two network ports and a plurality of lamp panel connection ports, one of the two network ports is used to electrically connect the network port 1515 on the adapter board 151 or a previous-stage module controller through a network cable, and the other network port is used as a cascade port to electrically connect a subsequent-stage module controller through a network cable; in this way, the plurality of module controllers in the LED display screen 157 may form a plurality of strings of module controllers in a cascade manner, and each module controller is electrically connected to a plurality of LED lamp panels. A single LED light panel typically includes a plurality of display pixels, and each display pixel includes, for example, red, green, blue, and even other color light emitting diodes.
As mentioned above, in a scenario of performing wireless screen projection by using the LED display 15a of this embodiment, after the system program in the embedded processor 1533 of the system control card 153 runs, the dual-mode WiFi module 1513 is set to operate in the AP mode, so that the LED display 15a may provide a wireless access point for the screen projector 13 to establish a wireless network communication connection with the screen projector 13, or provide a wireless access point for the wireless transceiver of the source device 11 itself, such as WiFi, to provide wireless access for the source device 11 to wirelessly access. After that, the embedded processor 1533 may receive the screen projection screen data wirelessly transmitted via the screen projector 13 or the screen projection screen data transmitted via the WiFi of the source device 11 by the dual-mode WiFi module 1513. The screen projection image data here is obtained by, for example, the source device 11 running a screen capture application in a preset storage space of the screen projector 13 to capture video data in a video frame buffer.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A screen projector, comprising:
a plug and play interface;
the processor is electrically connected with the plug-and-play interface;
the non-volatile memory is electrically connected with the processor and stores a screen capture application program, wherein the screen capture application program is used for being loaded to source equipment in wired connection with the plug-and-play interface through the processor so as to run on an operating system of the source equipment to perform screen capture operation to obtain screen projection picture data; and
and the human body induction module is electrically connected with the processor and is used for executing human body induction operation so as to trigger the processor to generate an enabling signal to enable the source equipment to transmit the screen projection picture data to the display equipment which is in network connection with the source equipment.
2. The screen projector of claim 1, wherein the screen projector further comprises: the wireless transceiver is electrically connected with the processor; the human body induction module is specifically used for executing human body induction operation to trigger the processor to generate an enabling signal to enable the source device to transmit the screen projection picture data to the processor through a human-computer interface device channel and then to transmit the screen projection picture data to the display device in a wireless mode through the wireless transceiver.
3. The screen projector as claimed in claim 1, wherein the screen projector is not provided with a wireless transceiver, and the human body sensing module is specifically configured to perform a human body sensing operation to trigger the processor to generate an enabling signal to enable the source device to transmit the screen projection image data to the display device wirelessly via the wireless transceiver of the source device itself.
4. The screen projector of claim 1, wherein the screen projector further comprises: a visual indicator electrically connected to the processor and configured to change state upon the processor generating the enable signal to indicate that the screen projector is currently in an on screen state.
5. The screen projector as claimed in claim 1, wherein an effective sensing distance of the human body sensing module is configured to be less than 10 cm.
6. A wireless screen projection method is characterized by comprising the following steps:
establishing communication connection with a source device through a plug-and-play interface so as to display a preset storage space of a screen projector to the source device and establish a Human Interface Device (HID) channel between the screen projector and the source device, wherein a screen capture application program is stored in the preset storage space;
loading the screen capture application program to the source equipment so as to run the screen capture application program on an operating system of the source equipment to perform screen capture operation to obtain screen projection picture data; and
responding to human body induction operation, triggering and generating an enabling signal to enable the source equipment to transmit the screen projection picture data to a processor of the screen projection device through the human-computer interface equipment channel, and then transmitting the screen projection picture data to display equipment which is in network connection with the source equipment through the screen projection device in a wireless mode through a wireless transceiver of the screen projection device.
7. The wireless screen projection method according to claim 6, wherein the human body induction operation is a human body infrared induction operation or a human body microwave induction operation, and an effective induction distance of the human body induction operation is less than 10 cm.
8. A conferencing system, comprising:
a screen projector as claimed in any one of claims 1 to 5; and
an LED display, comprising:
the adapter plate is provided with a dual-mode WiFi module and a plurality of network ports;
the system control card is fixedly inserted into the adapter plate through a first plug-in component, an embedded processor for installing an operating system is arranged on the system control card, and the embedded processor is electrically connected with the dual-mode WiFi module through the first plug-in component;
the display control card is fixedly inserted into the adapter plate through a second inserting component, the display control card is provided with an image processor and at least one Ethernet transceiver electrically connected with the image processor, the image processor is electrically connected with the embedded processor through the second inserting component, the adapter plate and the first inserting component, and the at least one Ethernet transceiver is electrically connected with the plurality of network ports through the second inserting component; and
the LED display screen is electrically connected with at least part of the plurality of network ports;
wherein the LED display is used for establishing a communication connection with the source device as the display device when the dual-mode WiFi module operates in the AP mode.
9. The conferencing system of claim 8, wherein the image processor comprises a microcontroller and a programmable logic device electrically connected to the microcontroller, the at least one ethernet transceiver comprising a multi-port ethernet transceiver; the multi-port ethernet transceiver electrically connects the programmable logic device through a plurality of SerDes channels and electrically connects some or all of the plurality of ports through the second connector assembly, and each of the SerDes channels has two pairs of differential signal lines.
10. The conferencing system of claim 9, wherein the at least one ethernet transceiver further comprises a plurality of 5G ethernet transceivers; the plurality of 5G Ethernet transceivers are electrically connected with the second connector assembly and the programmable logic device through another plurality of SerDes channels; the multi-port ethernet transceiver is a multi-port gigabit ethernet transceiver chip, and each of the first and second patch modules is a pair of connectors having the same pin count.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910680099.7A CN112312175A (en) | 2019-07-26 | 2019-07-26 | Screen projector, wireless screen projecting method and conference system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910680099.7A CN112312175A (en) | 2019-07-26 | 2019-07-26 | Screen projector, wireless screen projecting method and conference system |
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| CN112312175A true CN112312175A (en) | 2021-02-02 |
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| CN201910680099.7A Pending CN112312175A (en) | 2019-07-26 | 2019-07-26 | Screen projector, wireless screen projecting method and conference system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746467A (en) * | 2021-08-31 | 2021-12-03 | 杭州海康威视数字技术股份有限公司 | Screen projection control method, screen projector and processing chip |
| WO2023123597A1 (en) | 2021-12-31 | 2023-07-06 | 大连科利德光电子材料有限公司 | Preparation method for electronics-grade boron trichloride, and boron trichloride obtained thereby |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070234222A1 (en) * | 2006-03-29 | 2007-10-04 | Kabushiki Kaisha Toshiba | Screen transmission device, screen display method and computer readable medium |
| CN104750237A (en) * | 2013-12-29 | 2015-07-01 | 中国移动通信集团公司 | Multi-screen interactive connection method and device as well as electronic equipment |
| CN104780433A (en) * | 2015-03-26 | 2015-07-15 | 四川长虹电器股份有限公司 | Distance-sensing-based wireless screen transmission system and method |
| CN206894786U (en) * | 2017-06-29 | 2018-01-16 | 深圳市奇信建筑智能化工程有限公司 | A kind of intelligent OA conference systems based on Internet of Things |
| CN107943722A (en) * | 2017-11-16 | 2018-04-20 | 杭州楷知科技有限公司 | It is a kind of that the method and system for passing screen are realized based on USB device |
-
2019
- 2019-07-26 CN CN201910680099.7A patent/CN112312175A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070234222A1 (en) * | 2006-03-29 | 2007-10-04 | Kabushiki Kaisha Toshiba | Screen transmission device, screen display method and computer readable medium |
| CN104750237A (en) * | 2013-12-29 | 2015-07-01 | 中国移动通信集团公司 | Multi-screen interactive connection method and device as well as electronic equipment |
| CN104780433A (en) * | 2015-03-26 | 2015-07-15 | 四川长虹电器股份有限公司 | Distance-sensing-based wireless screen transmission system and method |
| CN206894786U (en) * | 2017-06-29 | 2018-01-16 | 深圳市奇信建筑智能化工程有限公司 | A kind of intelligent OA conference systems based on Internet of Things |
| CN107943722A (en) * | 2017-11-16 | 2018-04-20 | 杭州楷知科技有限公司 | It is a kind of that the method and system for passing screen are realized based on USB device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746467A (en) * | 2021-08-31 | 2021-12-03 | 杭州海康威视数字技术股份有限公司 | Screen projection control method, screen projector and processing chip |
| WO2023123597A1 (en) | 2021-12-31 | 2023-07-06 | 大连科利德光电子材料有限公司 | Preparation method for electronics-grade boron trichloride, and boron trichloride obtained thereby |
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