CN220528133U - Control circuit for multifunctional point-to-point wireless screen-throwing and wireless screen-throwing equipment - Google Patents

Control circuit for multifunctional point-to-point wireless screen-throwing and wireless screen-throwing equipment Download PDF

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Publication number
CN220528133U
CN220528133U CN202321801325.0U CN202321801325U CN220528133U CN 220528133 U CN220528133 U CN 220528133U CN 202321801325 U CN202321801325 U CN 202321801325U CN 220528133 U CN220528133 U CN 220528133U
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signal
module
sub
target
screen
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张清森
陈俊灵
朱杰
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Shenzhen Lvlian Technology Co Ltd
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Shenzhen Lvlian Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The utility model discloses a control circuit for multifunctional point-to-point wireless screen projection and wireless screen projection equipment, which interact with signal sources of different ports through a multi-source conversion module, namely can be compatible with signal source equipment with various interfaces and various formats to perform wireless screen projection; after different interface signal sources are accessed, an adaptive target signal can be generated based on the currently accessed signal sources and signal source types, then analysis processing is carried out on screen projection information of the target signal through a signal switching module, and finally screen projection display is carried out on display equipment, wherein the analysis processing of the target signal enables the signal to adapt to the screen projection requirements of a mobile phone/a tablet computer and the like, and the application flexibility of wireless screen projection is improved; in addition, the display mode on the display device can be automatically adjusted based on the screen throwing information of the target signal, and the display mode comprises single-channel/multi-channel signal display, namely, the display requirement of multi-channel signals is supported, so that the display flexibility of wireless screen throwing is improved.

Description

Control circuit for multifunctional point-to-point wireless screen-throwing and wireless screen-throwing equipment
Technical Field
The utility model relates to the technical field of wireless screen projection, in particular to a control circuit and an electronic component for multifunctional point-to-point wireless screen projection.
Background
The most of the conventional screen throwers on the market are point-to-point wireless screen throwers, namely one HDMI (high definition multimediase:Sub>A interface) interface TX transmitting end corresponds to one HDMI interface RX receiving end, or one USB-A interface TX transmitting end corresponds to one HDMI receiving RX receiving end, so that ase:Sub>A complete set of point-to-point wireless screen thrower system is formed.
But the existing point-to-point wireless screen-throwing technology has the problems of incompatibility among different interface signal sources, low screen-throwing flexibility and limited screen display of a screen-throwing display end.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a control circuit for multifunctional point-to-point wireless screen projection, which can be compatible with signal sources of different interfaces, and improves the application flexibility and display flexibility of the wireless screen projection.
In order to solve the technical problems, a first aspect of the present utility model discloses a control circuit for multifunctional point-to-point wireless screen switching, the control circuit includes a multi-source conversion module and a signal switching module, wherein:
the multi-source conversion module is in communication connection with the signal switching module; the signal source end of the multi-source conversion module is used for accessing various signal sources; the output end of the signal switching module is used for being connected with display equipment;
the multi-source conversion module is used for generating a target signal matched with a preset protocol according to a signal type corresponding to an accessed target signal source, and then transmitting the target signal to the signal switching module;
the signal transfer module is used for receiving the target signal, analyzing and obtaining screen projection information matched with the target signal, and transmitting the target signal to the display equipment according to the screen projection information so as to display content corresponding to the target signal through the display equipment;
the screen throwing information comprises a display mode of the target signal on the display equipment, wherein the display mode comprises a single screen mode or a split screen mode; the screen projection information further comprises main body information corresponding to a request main body for requesting the target signal to be subjected to wireless screen projection.
As an alternative implementation manner, in the first aspect of the present utility model, the multi-source conversion module includes a conversion sub-module and a first communication sub-module, where:
the input end of the conversion submodule is used for accessing various signal sources; the conversion sub-module is in communication connection with the first communication sub-module; the first communication sub-module is in communication connection with the signal switching module;
the conversion sub-module is used for converting the accessed target signal source into a first signal matched with a first preset protocol; then transmitting the first signal to the first communication sub-module;
the first communication sub-module is configured to receive the first signal, convert the first signal into a second signal matched with a second preset protocol, and transmit the second signal to the signal switching module.
As an optional implementation manner, in the first aspect of the present utility model, the signal forwarding module includes a second communication sub-module and a forwarding sub-module, where:
the second communication sub-module is in communication connection with the switching sub-module; the output end of the switching sub-module is used for being electrically connected with the display equipment;
the second communication sub-module is configured to receive the second signal and transmit the second signal to the switching sub-module;
the switching sub-module is used for converting the received second signal into a target signal according to a serial port protocol corresponding to the display equipment; and transmitting the target signal to the display device through the output end of the switching sub-module.
As an alternative embodiment, in the first aspect of the present utility model, the first communication sub-module includes at least two radio frequency antennas, and the two radio frequency antennas are used to transmit the second signal to the signal switching module.
As an optional implementation manner, in the first aspect of the present utility model, the display device includes a main control chip, where:
the signal input end of the main control chip is electrically connected with the output end of the signal switching module; the signal output end of the main control chip is electrically connected with the signal input end of the display device;
the main control chip is used for acquiring a port type corresponding to a signal input port of the display device, receiving the target signal and determining a signal source type of the target signal source corresponding to the target signal; the screen projection information adaptive to the target information is determined according to the port type and the signal source type;
the main control chip is further used for executing preset signal processing operation on the target signal according to the screen throwing information to obtain a signal processing result corresponding to the target signal; the signal processing operation includes at least one of video signal processing, image encoding processing, and signal output control operation.
As an optional implementation manner, in the first aspect of the present utility model, the target signal input to the main control chip corresponds to at least 1 signal source type; when the main control chip only receives the target signals of 1 signal source type, the display mode of the target signals on the display equipment is the single screen mode;
when the main control chip receives the target signals with more than 1 signal source type, the main control chip combines a preset signal display sequence according to the received receiving sequence of all the target signals and the quantity of all the target signals, and based on the split screen mode, the split screen mode of signal processing results corresponding to all the target signals is displayed on the display equipment; or,
and the main control chip displays each target signal at a preset display position corresponding to the signal source type of the target signal based on the split screen mode.
As an optional implementation manner, in the first aspect of the present utility model, the control circuit further includes a local area network communication module, where the local area network communication module includes at least one ethernet physical receiver and a corresponding RJ45S connector thereof; wherein:
the Ethernet physical receiver is in communication connection with the second communication sub-module; the data interaction end of the Ethernet physical receiver is electrically connected with the data interaction end of the RJ45S connector; the external network port of the RJ45S connector is used for butting an external wired network;
the Ethernet physical receiver is used for detecting the network state corresponding to the interactive data end where the second communication sub-module is located; after detecting that the network state corresponding to the data interaction end where the second communication sub-module is located is a networking-free state, accessing the external wired network to the Ethernet physical receiver through the RJ45S connector, and providing a wired network for the second communication sub-module;
the networking state includes a networking state or a non-networking state.
As an optional implementation manner, in the first aspect of the present utility model, the control circuit further includes a power module, where the power module includes a power supply sub-module and a power conversion sub-module;
the input end of the power supply sub-module is used for being connected with an external power supply; the output end of the power supply sub-module is electrically connected with the input end of the power conversion sub-module; the output end of the power conversion sub-module is electrically connected with the multi-source conversion module, the signal switching module and the power input end corresponding to the display equipment respectively;
the power conversion sub-module is used for accessing the input voltage of the power supply sub-module, and performing buck modulation on the input voltage according to the voltage supply requirements of the multi-source conversion module, the signal switching module and the display equipment so as to adapt to the voltage supply requirements of the multi-source conversion module, the signal switching module and the display equipment.
In an optional implementation manner, in the first aspect of the present utility model, the signal source includes ase:Sub>A signal source corresponding to HDMI at an interface end, ase:Sub>A signal source corresponding to TYPE-C at an interface end, and ase:Sub>A signal source corresponding to ase:Sub>A USB-ase:Sub>A host or ase:Sub>A graphics card at an interface end.
A second aspect of the utility model discloses a wireless screen-casting device comprising a control circuit for a multifunctional point-to-point wireless screen-casting as disclosed in any of the first aspects.
The implementation of the utility model has the following beneficial effects:
the utility model provides a control circuit for multi-functional point-to-point wireless screen projection, which interacts with signal sources of different ports through a multi-source conversion module, namely, the control circuit can be compatible with signal source equipment with various interfaces and various formats to perform wireless screen projection; after different interface signal sources are accessed, an adaptive target signal can be generated based on the currently accessed signal sources and signal source types, then analysis processing is carried out on screen projection information of the target signal through a signal switching module, and finally screen projection display is carried out on display equipment, wherein the analysis processing of the target signal enables the signal to adapt to the screen projection requirements of a mobile phone/a tablet computer and the like, and the application flexibility of wireless screen projection is improved; in addition, the display mode on the display device can be automatically adjusted based on the screen throwing information of the target signal, and the display mode comprises single-channel/multi-channel signal display, namely, the display requirement of multi-channel signals is supported, so that the display flexibility of wireless screen throwing is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a control circuit for multi-functional point-to-point wireless screen-casting according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of another control circuit for multi-functional point-to-point wireless screen-casting according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a control circuit for a multi-function point-to-point wireless screen-casting according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a conversion sub-module according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a first communication sub-module according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a second communication sub-module according to an embodiment of the present utility model;
fig. 7 is a schematic view of a part of a structure of a switching sub-module according to an embodiment of the present utility model;
fig. 8 is a schematic diagram of another part of a switching sub-module according to an embodiment of the present utility model;
fig. 9 is a schematic structural diagram of a further portion of a switching sub-module according to an embodiment of the present utility model;
fig. 10 is a schematic structural diagram of a main control chip according to an embodiment of the present utility model;
fig. 11 is a schematic diagram of a partial structure of a lan communication module according to an embodiment of the present utility model;
fig. 12 is a schematic diagram of another part of a lan communication module according to an embodiment of the present utility model;
fig. 13 is a schematic structural diagram of a power supply sub-module according to an embodiment of the present utility model;
fig. 14 is a schematic structural diagram of a power conversion sub-module according to an embodiment of the present utility model;
fig. 15 is a schematic structural diagram of a wireless screen-projecting device according to an embodiment of the present utility model.
Detailed Description
For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, unless explicitly specified and limited otherwise, the term "electrically connected" in the description of the utility model and in the claims and in the above-mentioned figures should be understood in a broad sense, for example, as a fixed electrical connection, as a removable electrical connection, or as an integral electrical connection; can be mechanically and electrically connected or can be mutually communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. Furthermore, the terms first, second and the like in the description and in the claims of the utility model and in the foregoing figures, are used for distinguishing between different objects and not for describing a particular sequential order, and are not intended to cover any exclusive inclusion. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a control circuit 10 for a multi-functional point-to-point wireless screen-projection disclosed in an embodiment of the present utility model, where the control circuit 10 can be applied to a wireless screen-projection device, and the embodiment of the present utility model is not limited. As shown in fig. 1, the control circuit 10 for multi-functional point-to-point wireless screen-casting includes a multi-source conversion module 101 and a signal transfer module 102, wherein:
the multi-source conversion module 101 is in communication connection with the signal switching module 102; the signal source end of the multi-source conversion module 101 is used for accessing various signal sources; the output end of the signal switching module 102 is used for being connected with the display device 20;
in the embodiment of the utility model, the signal sources comprise signal sources corresponding to HDMI at the interface end, signal sources corresponding to TYPE-C at the interface end and signal sources corresponding to USB-A host or display card at the interface end.
The multi-source conversion module 101 is configured to generate a target signal matched with a preset protocol according to a signal type corresponding to an accessed target signal source, and then transmit the target signal to the signal switching module 102;
the signal switching module 102 is configured to receive the target signal, parse the target signal to obtain screen projection information adapted to the target signal, and transmit the target signal to the display device 20 according to the screen projection information, so as to display content corresponding to the target signal through the display device 20;
wherein the screen information includes a display mode of the target signal on the display device 20, the display mode including a single screen mode or a split screen mode; the screen projection information further comprises main body information corresponding to a request main body for requesting to perform wireless screen projection on the target signal.
In the embodiment of the present utility model, referring specifically to fig. 3, fig. 3 is ase:Sub>A schematic structural diagram of ase:Sub>A control circuit for multi-functional point-to-point wireless screen switching disclosed in the embodiment of the present utility model, specifically, the TX transmitting end may correspond to an HDMI interface, ase:Sub>A USB-ase:Sub>A interface, and ase:Sub>A TYPE-C interface; each interface is used for interacting/butting corresponding signal sources respectively; the received signal source is correspondingly processed through the TX transmitting end (the multi-source conversion module 101), and then the received signal of the SDIO protocol is converted into a signal of a WIFI 2.4G/5G protocol and is transmitted through a radio frequency antenna; the radio frequency signal is received at the corresponding RX transmitting end (signal switching module 102), the received radio frequency signal is converted into a serial port protocol signal through the signal switching module 102, and the serial port protocol signal enters the main control chip 201, and the serial port protocol signal is processed by the main control chip 201 and then displayed on the display device 20. The control circuit described in fig. 3 can adapt to the screen requirement of a mobile phone/tablet/computer and the like, so that the application flexibility of wireless screen projection is improved.
As can be seen, implementing the control circuit 10 for multi-functional point-to-point wireless screen-casting described in fig. 1, the multi-source conversion module 101 interacts with signal sources of different ports, that is, can be compatible with signal source devices of various interfaces and various formats to perform wireless screen-casting; after the signal sources of different interfaces are accessed, an adaptive target signal can be generated based on the currently accessed signal sources and signal source types, then the analysis processing is carried out on the screen projection information of the target signal through the signal switching module 102, and finally the screen projection display is carried out on the display equipment 20, wherein the analysis processing on the target signal enables the signal to adapt to the screen projection requirements of a mobile phone/a tablet computer and the like, so that the application flexibility of wireless screen projection is improved; in addition, the display mode on the display device 20 can be automatically adjusted based on the screen-throwing information of the target signal, which comprises single-channel/multi-channel signal display, namely, the display requirement of multi-channel signals is supported, so that the display flexibility of wireless screen throwing is improved.
In an alternative embodiment, as shown in fig. 2, fig. 2 is a schematic structural diagram of another control circuit for multi-functional point-to-point wireless screen-throwing disclosed in the embodiment of the present utility model, as shown in fig. 2, the multi-source conversion module 101 includes a conversion submodule 1011 and a first communication submodule 1012, wherein:
the input end of the conversion submodule 1011 is used for accessing various signal sources; the conversion submodule 1011 is communicatively connected to the first communication submodule 1012; the first communication sub-module 1012 is communicatively coupled to the signal transfer module 102;
optionally, referring to fig. 4 for a specific structure of the conversion sub-module 1011, fig. 4 discloses a schematic structural diagram of the conversion sub-module 1011 according to an embodiment of the present utility model, wherein JH01 is an HDMI standard interface male socket for receiving an external computer HDMI signal, and the structure of the conversion sub-module 1011 is similar to that of fig. 4 for a signal corresponding to USB-A, TYPE-C.
A conversion submodule 1011, configured to convert the accessed target signal source into a first signal matched with a first preset protocol; the first signal is then transmitted to a first communication sub-module 1012;
the first communication sub-module 1012 is configured to receive the first signal, convert the first signal into a second signal matching a second preset protocol, and transmit the second signal to the signal switching module 102.
In this alternative embodiment, the first signal matched with the first preset protocol may be a signal of the SDIO protocol; the second signal matched with the second preset protocol can be a signal of a WIFI 2.4G/5G protocol; optionally, before converting the target signal source into the first signal, determining whether the target signal source includes a signal of the SDIO protocol, if yes, directly extracting the signal of the SDIO protocol in the target signal source as the first signal, and then transmitting the first signal to the first communication submodule 1012 through the conversion submodule 1011; if not, triggering and executing the operation of converting the accessed target signal source into the first signal corresponding to the first preset protocol.
In this alternative embodiment, optionally, the first communication sub-module 1012 includes at least two radio frequency antennas for transmitting the second signal to the signal transfer module 102; at this time, the second signal is a radio frequency signal transmitted by the radio frequency antenna. In particular, the specific structure of the first communication sub-module 1012 may refer to fig. 5.
In this alternative embodiment, multiple signal sources are received through the conversion sub-module 1011, and according to preset signal processing requirements, the large first signal of the received signal sources is converted and processed, and then transmitted to the first communication sub-module 1012, the second signal is processed by the first communication sub-module 1012, and converted into a target signal which can be actually received by the signal switching module, and intelligent processing, transmission and the like of the received signal sources are realized through the conversion sub-module 1011 and the first communication sub-module 1012 included in the multi-source conversion module 101; the method is beneficial to improving the processing accuracy of the multi-source signals, realizing the compatibility of the multi-source signals and improving the applicability of the whole control circuit.
In another alternative embodiment, as shown in fig. 2, the signal transfer module 102 includes a second communication sub-module 1021 and a transfer sub-module 1022, where:
the second communication sub-module 1021 is communicatively connected with the transit sub-module 1022; the output end of the switching sub-module 1022 is used for electrically connecting with the display device 20;
a second communication sub-module 1021 for receiving the second signal and transmitting the second signal to the transit sub-module 1022; the specific structure of the second communication sub-module 1021 can be seen in fig. 6.
A switching sub-module 1022, configured to convert the received second signal into a target signal according to a serial port protocol corresponding to the display device 20; and transmits the target signal to the display device 20 through the output of the transit sub-module 1022; the specific structure of the switching sub-module 1022 may be referred to in fig. 7-9.
In this optional embodiment, the signal switching module converts the second signal into the serial port protocol signal adapted to the serial port protocol of the display device, so as to provide the functions of interaction and adaptation adjustment with the display device, which is favorable for improving the accuracy and the display stability of the signal displayed on the display device, and further improves the applicability of the overall control circuit.
In yet another alternative embodiment, as shown in fig. 2, the display device 20 includes a main control chip 201, wherein:
the signal input end of the main control chip 201 is electrically connected with the output end of the signal switching module 102; the signal output end of the main control chip 201 is electrically connected with the signal input end of the display device 20;
the main control chip 201 is configured to obtain a port type corresponding to a signal input port of the display device 20, receive a target signal, and determine a signal source type of a target signal source corresponding to the target signal; the system is also used for determining screen projection information matched with the target information according to the port type and the signal source type;
the main control chip 201 is further configured to perform a preset signal processing operation on the target signal according to the screen-throwing information, so as to obtain a signal processing result corresponding to the target signal; the signal processing operation includes at least one of video signal processing, image encoding processing, and signal output control operation.
In this alternative embodiment, the target signal input into the main control chip 201 corresponds to at least 1 signal source type; when the main control chip 201 only receives the target signals of 1 signal source type, the display mode of the target signals on the display device 20 is a single screen mode;
when the main control chip 201 receives target signals with more than 1 signal source type, the main control chip 201 combines a preset signal display sequence according to the receiving sequence of all the received target signals and the quantity of all the target signals, and based on a split screen mode, the split screen mode of signal processing results corresponding to all the target signals is displayed on the display device 20; or,
based on the split screen mode, the main control chip 201 displays each target signal at a preset display position corresponding to the signal source type of the target signal.
In this alternative embodiment, as shown in fig. 10, the chip model corresponding to the main control chip 201 may be RK3036; the main control chip 201 may include an integrated circuit module T31, an external memory FLASH U6, a clock control circuit Y2, a dynamic random access memory U9, a program memory U8, and the like. The integrated circuit module T31 is used for realizing video signal processing, image coding processing, basic input/output signal control and the like; the external memory FLASH U6 is a memory for ensuring the normal operation of the system; the clock control circuit Y2 is used for generating a clock circuit and controlling the signal output of the clock circuit; the dynamic random access memory U9 is a dynamic random access memory forming an RK3036 system; the program memory U8 is a program memory forming the RK3036 system and mainly stores a main program capable of calling the normal operation of the system.
Therefore, through the main control chip 201, the received target signal is subjected to the adapting processing, and meanwhile, the target signal can be automatically adapted and adjusted according to the user use requirement/signal access output requirement, so that the target signals of different source ports can be accurately adapted and output besides the target signal access output of the source port, the compatible output of the multi-source signals is realized, and the display accuracy and the display output flexibility of the whole control circuit in the display output part are improved.
In yet another alternative embodiment, as shown in fig. 2, the control circuit 10 further includes a lan communication module 103, the lan communication module 103 including at least one ethernet physical receiver 1031 and its corresponding RJ45S connector 1032; wherein:
the ethernet physical receiver 1031 is communicatively coupled to the second communications sub-module 1021; the data interaction end of the ethernet physical receiver 1031 is electrically connected with the data interaction end of the RJ45S connector 1032; the external network port of the RJ45S connector 1032 is used for interfacing with an external wired network;
the ethernet physical receiver 1031 is configured to detect a network state corresponding to the interaction data end where the second communication sub-module 1021 is located; after detecting that the network state corresponding to the data interaction end where the second communication sub-module 1021 is located is a non-networking state, accessing an external wired network to the ethernet physical receiver 1031 through the RJ45S connector 1032, and providing a wired network for the second communication sub-module 1021;
the networking state includes a networking state or a non-networking state. In this way, the local area network communication module 103 can provide a wired local area network internet service for the whole system, so that the normal internet function of the mobile phone/tablet/computer and other equipment is ensured while the screen is thrown; specifically, the specific structure of the lan communication module 103 can be seen in fig. 11-12; wherein, JP5 is RJ45S net gape for dock outside wired net.
In yet another alternative embodiment, as shown in fig. 2, the control circuit 10 further includes a power module 104, and the power module 104 includes a power supply sub-module 1041 and a power conversion sub-module 1042;
the input end of the power supply submodule 1041 is used for being connected with an external power supply; the output end of the power supply submodule 1041 is electrically connected with the input end of the power conversion submodule 1042; the output end of the power conversion submodule 1042 is electrically connected with the corresponding power input ends of the multi-source conversion module 101, the signal switching module 102 and the display device 20 respectively;
the power conversion submodule 1042 is configured to access an input voltage of the power supply submodule 1041, and perform buck modulation on the input voltage according to voltage supply requirements of the multi-source conversion module 101, the signal switching module 102 and the display device 20, so as to adapt to the voltage supply requirements of the multi-source conversion module 101, the signal switching module 102 and the display device 20.
In this alternative embodiment, as shown in FIG. 13, power supply submodule 1041 may access 5V DC power via a TYPE-C interface; as shown in fig. 14, the power supply sub-module 1041 converts the 5V power into 3.3V,1.8V and 0.8V respectively through the 3-way power conversion circuit by the conversion sub-module 1042, and then distributes the voltage according to the use requirements of each module in the specific system. The power conversion submodule 1042 may include U2603, U2602, U6, U5, where:
3.3V mainly provides basic IO port voltage for the system and working voltage for the WIFI module; 1.8V provides a core voltage for the T31 module; 0.8V provides the core voltage for the T31 module;
specific: u2603 is used for providing a basic 3.3V power supply voltage for the receiving end main control chip 201, providing an interface voltage for an I/O interface corresponding to the main control chip 201, and the like; u2602 is used for providing 1.2V internal core voltage for the receiving end main control chip 201; u6 is used for providing 1.5V power supply voltage for the receiving end main control chip 201 and the DDR module; u5 is used for providing 5V power supply voltage for the receiving end system; therefore, through the power supply management and control design of the power supply module, the adaptive voltage is supplied for each module, the operation requirement of the whole system is guaranteed, and the operation of the whole control circuit/system is improved.
The working principle of the control circuit for the multifunctional point-to-point wireless screen throwing in the embodiment of the utility model is as follows:
in the embodiment of the utility model, the multi-source conversion module 101 interacts with signal sources of different ports, namely, the wireless screen-throwing is carried out by being compatible with signal source equipment with various interfaces and various formats; after the signal sources of different interfaces are accessed, an adaptive target signal can be generated based on the currently accessed signal sources and signal source types, then the analysis processing is carried out on the screen projection information of the target signal through the signal switching module 102, and finally the screen projection display is carried out on the display equipment 20, wherein the analysis processing on the target signal enables the signal to adapt to the screen projection requirements of a mobile phone/a tablet computer and the like, so that the application flexibility of wireless screen projection is improved; in addition, the display mode on the display device 20 can be automatically adjusted based on the screen-throwing information of the target signal, which comprises single-channel/multi-channel signal display, namely, the display requirement of multi-channel signals is supported, so that the display flexibility of wireless screen throwing is improved.
It should be noted that the above description of the principle is a description of a control circuit for multi-functional point-to-point wireless screen, and for the principle of a plurality of control circuits for multi-functional point-to-point wireless screen, please refer to the above detailed description of the principle of a control circuit for multi-functional point-to-point wireless screen, which is not repeated herein.
Example two
Referring to fig. 15, fig. 15 is a schematic structural diagram of a wireless screen-throwing device according to an embodiment of the present utility model, where the wireless screen-throwing device includes a control circuit for multi-functional point-to-point wireless screen throwing according to any one of the first embodiment. It should be noted that, for a detailed description of the control circuit for the multi-functional point-to-point wireless screen, please refer to the detailed description of the related content in the first embodiment, and the detailed description is omitted.
As can be seen, implementing the wireless screen-throwing device described in fig. 15 can interact with signal sources of different ports through the multi-source conversion module 101, that is, can be compatible with signal source devices with multiple interfaces and multiple formats to perform wireless screen throwing; after the signal sources of different interfaces are accessed, an adaptive target signal can be generated based on the currently accessed signal sources and signal source types, then the analysis processing is carried out on the screen projection information of the target signal through the signal switching module 102, and finally the screen projection display is carried out on the display equipment 20, wherein the analysis processing on the target signal enables the signal to adapt to the screen projection requirements of a mobile phone/a tablet computer and the like, so that the application flexibility of wireless screen projection is improved; in addition, the display mode on the display device 20 can be automatically adjusted based on the screen-throwing information of the target signal, which comprises single-channel/multi-channel signal display, namely, the display requirement of multi-channel signals is supported, so that the display flexibility of wireless screen throwing is improved.
The control circuit and the electronic components for multi-functional point-to-point wireless screen projection disclosed in the embodiments of the present utility model are described in detail, and specific embodiments are applied to illustrate the principles and implementation modes of the present utility model, but the preferred embodiments are not intended to limit the present utility model, and the description of the above embodiments is only used to help understand the method and core ideas of the present utility model; also, it is apparent to those skilled in the art from this disclosure that many changes can be made in this embodiment and this application without departing from the spirit and scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The utility model provides a control circuit for multi-functional point-to-point wireless throw screen which characterized in that, control circuit includes multisource conversion module and signal switching module, wherein:
the multi-source conversion module is in communication connection with the signal switching module; the signal source end of the multi-source conversion module is used for accessing various signal sources; the output end of the signal switching module is used for being connected with display equipment;
the multi-source conversion module is used for generating a target signal matched with a preset protocol according to a signal type corresponding to an accessed target signal source, and then transmitting the target signal to the signal switching module;
the signal transfer module is used for receiving the target signal, analyzing and obtaining screen projection information matched with the target signal, and transmitting the target signal to the display equipment according to the screen projection information so as to display content corresponding to the target signal through the display equipment;
the screen throwing information comprises a display mode of the target signal on the display equipment, wherein the display mode comprises a single screen mode or a split screen mode; the screen projection information further comprises main body information corresponding to a request main body for requesting the target signal to be subjected to wireless screen projection.
2. The control circuit for a multi-function point-to-point wireless projection screen of claim 1, wherein the multi-source conversion module comprises a conversion sub-module and a first communication sub-module, wherein:
the input end of the conversion submodule is used for accessing various signal sources; the conversion sub-module is in communication connection with the first communication sub-module; the first communication sub-module is in communication connection with the signal switching module;
the conversion sub-module is used for converting the accessed target signal source into a first signal matched with a first preset protocol; then transmitting the first signal to the first communication sub-module;
the first communication sub-module is configured to receive the first signal, convert the first signal into a second signal matched with a second preset protocol, and transmit the second signal to the signal switching module.
3. The control circuit for a multi-function point-to-point wireless screen of claim 2, wherein the signal transfer module comprises a second communication sub-module and a transfer sub-module, wherein:
the second communication sub-module is in communication connection with the switching sub-module; the output end of the switching sub-module is used for being electrically connected with the display equipment;
the second communication sub-module is configured to receive the second signal and transmit the second signal to the switching sub-module;
the switching sub-module is used for converting the received second signal into a target signal according to a serial port protocol corresponding to the display equipment; and transmitting the target signal to the display device through the output end of the switching sub-module.
4. A control circuit for a multi-function point-to-point wireless screen as claimed in claim 2 or 3, wherein the first communication sub-module comprises at least two radio frequency antennas for transmitting the second signal to the signal transfer module.
5. A control circuit for a multi-functional point-to-point wireless screen as claimed in any one of claims 1-3, wherein the display device comprises a master control chip, wherein:
the signal input end of the main control chip is electrically connected with the output end of the signal switching module; the signal output end of the main control chip is electrically connected with the signal input end of the display device;
the main control chip is used for acquiring a port type corresponding to a signal input port of the display device, receiving the target signal and determining a signal source type of the target signal source corresponding to the target signal; the system is also used for determining screen projection information matched with the target signal according to the port type and the signal source type;
the main control chip is further used for executing preset signal processing operation on the target signal according to the screen throwing information to obtain a signal processing result corresponding to the target signal; the signal processing operation includes at least one of video signal processing, image encoding processing, and signal output control operation.
6. The control circuit for multi-functional point-to-point wireless screen casting of claim 5, wherein the target signal input to the master control chip corresponds to at least 1 signal source type; when the main control chip only receives the target signals of 1 signal source type, the display mode of the target signals on the display equipment is the single screen mode;
when the main control chip receives the target signals with more than 1 signal source type, the main control chip combines a preset signal display sequence according to the received receiving sequence of all the target signals and the quantity of all the target signals, and based on the split screen mode, the split screen mode of signal processing results corresponding to all the target signals is displayed on the display equipment; or,
and the main control chip displays each target signal at a preset display position corresponding to the signal source type of the target signal based on the split screen mode.
7. A control circuit for a multi-function point-to-point wireless screen as recited in claim 3, further comprising a local area network communication module including at least one ethernet physical receiver and its corresponding RJ45S connector; wherein:
the Ethernet physical receiver is in communication connection with the second communication sub-module; the data interaction end of the Ethernet physical receiver is electrically connected with the data interaction end of the RJ45S connector; the external network port of the RJ45S connector is used for butting an external wired network;
the Ethernet physical receiver is used for detecting the network state corresponding to the interactive data end where the second communication sub-module is located; after detecting that the network state corresponding to the data interaction end where the second communication sub-module is located is a networking-free state, accessing the external wired network to the Ethernet physical receiver through the RJ45S connector, and providing a wired network for the second communication sub-module;
the networking state includes a networking state or a non-networking state.
8. The control circuit for a multi-function point-to-point wireless screen as recited in claim 6 or 7, further comprising a power module including a power supply sub-module and a power conversion sub-module;
the input end of the power supply sub-module is used for being connected with an external power supply; the output end of the power supply sub-module is electrically connected with the input end of the power conversion sub-module; the output end of the power conversion sub-module is electrically connected with the multi-source conversion module, the signal switching module and the power input end corresponding to the display equipment respectively;
the power conversion sub-module is used for accessing the input voltage of the power supply sub-module, and performing buck modulation on the input voltage according to the voltage supply requirements of the multi-source conversion module, the signal switching module and the display equipment so as to adapt to the voltage supply requirements of the multi-source conversion module, the signal switching module and the display equipment.
9. The control circuit for multi-functional point-to-point wireless projection screen according to claim 1, 2, 3, 6 or 7, wherein the signal source comprises ase:Sub>A signal source corresponding to an HDMI at an interface end, ase:Sub>A signal source corresponding to ase:Sub>A TYPE-C at an interface end, and ase:Sub>A signal source corresponding to ase:Sub>A USB-ase:Sub>A host or ase:Sub>A graphics card at an interface end.
10. A wireless screen-casting device, characterized in that it comprises a control circuit for a multifunctional point-to-point wireless screen-casting according to any of claims 1-9.
CN202321801325.0U 2023-07-10 2023-07-10 Control circuit for multifunctional point-to-point wireless screen-throwing and wireless screen-throwing equipment Active CN220528133U (en)

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Application Number Priority Date Filing Date Title
CN202321801325.0U CN220528133U (en) 2023-07-10 2023-07-10 Control circuit for multifunctional point-to-point wireless screen-throwing and wireless screen-throwing equipment

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CN220528133U true CN220528133U (en) 2024-02-23

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