CN114157898A - Signal switching system and signal switching method - Google Patents
Signal switching system and signal switching method Download PDFInfo
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- CN114157898A CN114157898A CN202111347647.8A CN202111347647A CN114157898A CN 114157898 A CN114157898 A CN 114157898A CN 202111347647 A CN202111347647 A CN 202111347647A CN 114157898 A CN114157898 A CN 114157898A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 4
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- 230000002452 interceptive effect Effects 0.000 abstract description 61
- 230000008569 process Effects 0.000 description 9
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- 238000010586 diagram Methods 0.000 description 5
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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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
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43076—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4518—Management of client data or end-user data involving characteristics of one or more peripherals, e.g. peripheral type, software version, amount of memory available or display capabilities
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Abstract
The present application relates to a signal switching system and a signal switching method. The system can receive a first input signal of user equipment through an external interface and output the first input signal to the first operating system control unit, so that the first operating system control unit displays the first input signal through the display screen; the first switcher can conduct a signal channel between the first switcher and the second switcher according to the first switching instruction, so that the output signal of the input equipment is transmitted to the second switcher; the second switcher switches on signal channels of the second switcher and the external interface according to the first switching instruction, so that the second switcher transmits the received output signals to the user equipment through the external interface, the first input signals are transmitted by the external interface of the interactive panel, the external interface is multiplexed, the first switcher and the second switcher automatically switch, the output signals of the input equipment are transmitted to the user equipment, and the input equipment on the interactive panel is switched to be used by the user equipment.
Description
Technical Field
The present disclosure relates to signal switching technologies, and in particular, to a signal switching system and a signal switching method.
Background
With the rapid development of network technology and information technology, the society is integrated more quickly, the remote communication demand is more, the interactive flat plate (such as an intelligent conference flat plate) carries a remote conference video system, audio and video signals can be synchronously transmitted in a wireless way under a common network, the real-time transmission is not delayed, the stability is high, and the conference can be held in a remote way (such as across countries and regions) in real time no matter where participants are; the screen is shared in real time in different places, and is vivid and lifelike like a co-located room. Meanwhile, the intelligent conference tablet takes a high-definition liquid crystal screen as display, takes the android system as an operation platform, and peripheral devices such as a camera and a microphone can be switched between the windows system and the android system. In addition, the CAMERA of CAMERA is generally a 4K high-definition CAMERA, and the MIC (Microphone) is generally a Microphone array above 8 MIC; the pixel of a camera carried by the user equipment is usually lower than 4K, and the MIC of the user equipment is a microphone array below 8 MIC; for example, a notebook computer is generally a single MIC, and the pixels of a camera are generally below 720P.
In the prior art, when the user equipment is connected with the interactive tablet, generally, in the interactive process of the user equipment and the interactive tablet, the user equipment can only use peripheral devices such as a camera, a microphone and the like of the user equipment, and if the peripheral devices such as the camera, the microphone and the like with high quality need to be used, corresponding peripheral devices need to be additionally added, so that the hardware cost is greatly increased, and the use convenience is low.
Disclosure of Invention
Therefore, it is necessary to provide a signal switching system and a signal switching method capable of automatically switching signal channels to switch high-quality peripherals on an interactive tablet to a user equipment for use.
A signal switching system, comprising:
the first operating system control unit is used for connecting the display screen;
the external interface is connected with the first operating system control unit; the external interface is also used for connecting user equipment; the external interface is configured to receive a first input signal of the user equipment and transmit the first input signal to the first operating system control unit, so that the first operating system control unit processes the first input signal and transmits the processed signal to the display screen for displaying;
the first input end of the first switcher is used for being connected with the input equipment, and the first output end of the first switcher is connected with the first operating system control unit;
a first input end of the second switcher is connected with a second output end of the first switcher, a second input end of the second switcher is used for connecting an external interface, and a first output end of the second switcher is connected with the external interface;
the first switch is configured to conduct a signal channel between the first switch and the second switch according to a first switch instruction, so that the output signal of the input device is transmitted to the second switch through the first switch; the second switch is configured to conduct a signal channel between the second switch and the external interface according to the first switching instruction, so that the second switch transmits the received output signal to the user equipment through the external interface.
Optionally, the system further comprises a second operating system control unit, the second operating system control unit is connected to the first operating system control unit, and the second operating system control unit is connected to the third output terminal of the first switch;
when the second operating system control unit is in the working state, the first switch is also configured to conduct a signal channel between the first switch and the second operating system control unit according to the second switching instruction, so that the output signal of the input device is transmitted to the second operating system control unit through the first switch.
Optionally, the first operating system control unit is connected to the first input terminal of the first switch, and the second operating system control unit is connected to the second input terminal of the second switch;
when the first operating system control unit is in a working state, the second switcher conducts a signal channel between the second switcher and the external interface and a signal channel between the second switcher and the third switcher according to a third switching instruction, and conducts the signal channel between the third switcher and the first operating system control unit, so that a second input signal of the user equipment is transmitted to the first operating system control unit through the second switcher and the third switcher in sequence;
when the second os control unit is in a working state, the second switch switches on the signal channel between the second switch and the external interface, the signal channel between the second switch and the third switch, and the signal channel between the third switch and the second os control unit according to the fourth switching command, so that the second input signal of the user equipment is transmitted to the second os control unit through the second switch and the third switch in sequence.
Optionally, the external interface is a TYPEC interface; the first input signal is a DP signal, and the second input signal is a USB signal.
Optionally, when the first operating system control unit is in the working state, the first switch is further configured to conduct a signal channel between the first switch and the first operating system control unit according to a fifth switching instruction, so that the output signal of the input device is transmitted to the first operating system control unit through the first switch.
Optionally, the apparatus further comprises a first hub connected between the input device and the first input of the first switch.
Optionally, the switch further comprises a second hub, and the second hub is connected between the second output terminal of the second switch and the first input terminal of the third switch.
Optionally, the input device includes any one or any combination of the following: camera module, sound module and touch module.
Optionally, the first operating system control unit is configured to execute an android operating system; the second operating system control unit is used for executing a Windows operating system.
A signal switching method, comprising:
acquiring a first input signal of user equipment, processing the first input signal, and transmitting the processed signal to a display screen for displaying;
acquiring a switching request, and generating a first switching instruction according to the switching request;
respectively transmitting the first switching instruction to a first switcher and a second switcher; the first switching instruction is used for instructing the first switch to be conducted to a signal channel between the second switch and the first switch, so that the output signal of the input device is transmitted to the second switch through the first switch; the first switching instruction is further used for instructing the second switch to conduct a signal channel between the second switch and the external interface, so that the second switch transmits the received output signal to the user equipment through the external interface.
One of the above technical solutions has the following advantages and beneficial effects:
in the signal switching system, the signal switching system can be arranged in the interactive flat panel and is connected with the display screen through the first operating system control unit. The external interface is connected with the first operating system control unit; the external interface is connected with the user equipment, can receive a first input signal of the user equipment and transmits the first input signal to the first operating system control unit, so that the first operating system control unit processes the first input signal and transmits the processed signal to the display screen for displaying. The first input end of the first switcher is connected with the input device, and the first output end of the first switcher is connected with the first operating system control unit. The first input end of the second switcher is connected with the second output end of the first switcher, the second input end of the second switcher is connected with the external interface, and the first output end of the second switcher is connected with the external interface; the first switch can further conduct a signal channel between the first switch and the second switch according to the first switching command, so that the output signal of the input device is transmitted to the second switch through the first switch. The second switch can conduct a signal channel between the second switch and the external interface according to the first switching command, so that the second switch transmits the received output signal to the user equipment through the external interface. The multiplexing of the external interface is realized while the first input signal is transmitted by the external interface of the interactive panel, and the output signal of the input device is transmitted to the user equipment through the automatic switching of the first switcher and the second switcher, so that the input device (such as a high-pixel camera) on the interactive panel is switched to the user equipment for use. When this application is through being connected to external interface with user equipment, can upload to the display screen display with first input signal, still can switch through controlling first switch and second switch, realize cutting out input device and use for user equipment, reach user equipment and use the purpose of mutual dull and stereotyped input device.
Drawings
Fig. 1 is a schematic diagram of a first structure of a signal switching system in an embodiment of the present application.
Fig. 2 is a schematic diagram of a second structure of a signal switching system in an embodiment of the present application.
Fig. 3 is a schematic diagram of a third structure of a signal switching system in an embodiment of the present application.
Fig. 4 is a schematic diagram of a fourth structure of the signal switching system in the embodiment of the present application.
Fig. 5 is a schematic diagram of a fifth structure of a signal switching system in the embodiment of the present application.
Fig. 6 is a flowchart illustrating a signal switching method according to an embodiment of the present application.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In order to solve the problem that, in the conventional interaction process between the user equipment and the interactive tablet, the user equipment can only use peripheral devices such as a camera and a microphone of the user equipment, and if the peripheral devices such as a camera and a microphone with high quality need to be used, the corresponding peripheral devices need to be additionally arranged, so that the hardware cost is greatly increased, and the use convenience is low, in an embodiment, as shown in fig. 1, a signal switching system is provided, and includes a first operating system control unit 110, an external interface 120, a first switch 130, and a second switch 140. The first operating system control unit 110 is used to connect to the display screen 150. The external interface 120 is connected to the first operating system control unit 110, the external interface 120 is further used for connecting the user device 160, and the external interface 120 is configured to receive a first input signal of the user device 160 and transmit the first input signal to the first operating system control unit 110, so that the first operating system control unit 110 processes the first input signal and transmits the processed signal to the display screen 150 for displaying. A first input of the first switch 130 is for connection to the input device 170 and a first output of the first switch 130 is connected to the first operating system control unit 110. A first input terminal of the second switch 140 is connected to the second output terminal of the first switch 130, a second input terminal of the second switch 140 is used for connecting the external interface 120, and a first output terminal of the second switch 140 is connected to the external interface 120.
The first switch 130 is configured to conduct a signal channel between the first switch 130 and the second switch 140 according to a first switch instruction, so that an output signal of the input device 170 is transmitted to the second switch 140 through the first switch 130; the second switch 140 is configured to conduct a signal path between the second switch 140 and the external interface 120 according to the first switching instruction, so that the second switch 140 transmits the received output signal to the user equipment 160 through the external interface 120.
The signal switching system may be applied on an interactive tablet, which may be, but is not limited to, a smart conference tablet and a smart display screen 150. The first operating System control unit 110 refers to a control unit that can execute a first operating System, and in one example, the first operating System control unit 110 may be an SOC (System on Chip) control unit. The display 150 may be an interactive flat panel display 150, for example the display 150 may be a liquid crystal display 150. The external interface 120 may be an interface integrated inside the interactive tablet, the external interface 120 may be used to connect the user equipment 160, for example, the user equipment 160 may be plugged into the external interface 120 to enable connection between the user equipment 160 and the external interface 120, and then the user equipment 160 may transmit a first input signal to the interactive tablet through the external interface 120 to enable content corresponding to the first input signal to be displayed through the display screen 150 on the interactive tablet. In one example, the first input signal may be a video signal. The external interface 120 may be a hot-pluggable interface. The user device 160 may be, but is not limited to, a laptop, a tablet, a desktop, a cell phone, and the like.
The first switch 130 may include 1 input (i.e., a first input) and 3 outputs (i.e., a first output, a second output, and a third output), the first input of the first switch 130 may be connected with the input device 170, in one example, the first input of the first switch 130 may be directly connected with the input device 170; the first input of the first switch 130 may also be indirectly connected with the input device 170. The first switch 130 can switch the corresponding output terminal to be conducted according to the corresponding switching instruction. For example, the first switch 130 can conduct the second output terminal according to the first switching command, thereby conducting the signal path between the first switch 130 and the second switch 140. It should be noted that when any one of the 3 output terminals of the first switch 130 is turned on, the other two output terminals are turned off. The first switching instruction may be generated by the first operating system control unit 110, for example, the first switching instruction may be a level signal (e.g., a high level signal or a low level signal), and the first switching instruction may also be a PWM signal with a corresponding duty ratio. For example, when a user needs to perform a signal switching operation, the user may send a request to the interactive tablet by a key input or a language input, and the first operating system control unit 110 of the interactive tablet may obtain a corresponding switching request and generate a first switching instruction according to the switching request.
The input device 170 may be an input device 170 integrated on the interactive tablet, for example the input device 170 may be a camera on the interactive tablet or the like. The input device 170 may output a corresponding output signal based on the first input signal transmitted by the user device 160. The second switch 140 may include 2 inputs (i.e., a first input and a second input) and 2 outputs (i.e., a first output, a second output), the first output of the second switch 140 may be connected with the external interface 120, and in one example, the first output of the second switch 140 may be directly connected with the external interface 120. The second switch 140 can switch the corresponding output terminal to be conducted according to the corresponding switching command. For example, the second switch 140 can conduct the first output terminal of the second switch 140 according to the first switching command, thereby conducting the signal path between the second switch 140 and the external interface 120. It should be noted that when any one of the 2 output terminals of the second switch 140 is turned on, the other output terminal is turned off. The first switching instruction may be generated by the first operating system control unit 110, for example, the first switching instruction may be a level signal (e.g., a high level signal or a low level signal), and the first switching instruction may also be a PWM signal with a corresponding duty ratio. For example, the signal path between the second switch 140 and the external interface 120 may include an input signal path and an output signal path, when the first output terminal of the second switch 140 is turned on, that is, the output signal path between the second switch 140 and the external interface 120 is turned on; when the second input terminal of the second switch 140 is turned on, the input signal path between the second switch 140 and the external interface 120 is turned on. Wherein, the output signal channel and the input signal channel can share one signal channel.
Illustratively, the control unit 110 is connected to the display screen 150 based on the first operating system; the external interface 120 is connected to the first operating system control unit 110; the external interface 120 connects to the user equipment 160; a first input terminal of the first switch 130 is connected to the input device 170, and a first output terminal of the first switch 130 is connected to the first operating system control unit 110; a first input terminal of the second switch 140 is connected to a second output terminal of the first switch 130, a second input terminal of the second switch 140 is connected to the external interface 120, and a first output terminal of the second switch 140 is connected to the external interface 120; further, the user device 160 is plugged into the external interface 120, so that the user device 160 is connected to the interactive tablet, and the user can operate the user device 160 to transmit the first input signal of the user device 160 to the external interface 120, and then the external interface 120 can receive the first input signal of the user device 160 and transmit the first input signal to the first operating system control unit 110, so that the first operating system control unit 110 processes the first input signal and transmits the processed signal to the display screen 150 for displaying. In addition, the user can operate the user device 160 to perform a signal switching operation, and the first operating system control unit 110 generates a corresponding first switching instruction according to the switching request and transmits the first switching instruction to the first switch 130 and the second switch 140, respectively, so that the first switch 130 switches on a signal channel between the first switch 130 and the second switch 140 according to the first switching instruction, and an output signal of the input device 170 is transmitted to the second switch 140 through the first switch 130; the second switch 140 switches on a signal path between the second switch 140 and the external interface 120 according to the first switching command, so that the second switch 140 transmits the received output signal to the user equipment 160 through the external interface 120, thereby implementing the input device 170 on the interactive tablet side at the user equipment 160 side. In one example, the user may operate the interactive tablet to perform the signal switching operation, and the first operating system control unit 110 may generate a corresponding first switching instruction according to the switching request. In another example, the first operating system control unit 110 may generate a corresponding first switching instruction according to the acquired first input signal.
In the above embodiment, the output signal of the input device 170 is transmitted to the user device 160 by multiplexing the external interface 120 while transmitting the first input signal through the external interface 120 of the interactive tablet, and automatically switching through the first switch 130 and the second switch 140, so that the input device 170 (such as a high-pixel camera) on the interactive tablet is switched to the user device 160 for use. When the user equipment 160 is connected to the external interface 120, the first input signal can be uploaded to the display screen 150 for display, and the first switch 130 and the second switch 140 can be controlled to switch, so that the input equipment 170 can be switched out for the user equipment 160 to use, and the purpose that the user equipment 160 uses the input equipment 170 of the interactive tablet can be achieved.
In order to improve the universality of the signal switching system and the convenience of application on the dual-system interactive flat panel. In one example, as shown in fig. 2, the signal switching system further includes a second operating system control unit 180, the second operating system control unit 180 is connected with the first operating system control unit 110, and the second operating system control unit 180 is connected with the third output terminal of the first switch 130.
When the second operating system control unit 180 is in the working state, the first switch 130 is further configured to conduct a signal channel between the first switch 130 and the second operating system control unit 180 according to a second switch instruction, so that the output signal of the input device 170 is transmitted to the second operating system control unit 180 through the first switch 130.
The second operating system control unit 180 refers to a control unit that can execute a second operating system, and in one example, the second operating system control unit 180 may be a control unit to execute a Windows operating system. The first operating system control unit 110 may be a control unit to execute an Android (Android) operating system. That is, the first operating system control unit 110 may be used to execute an android operating system; the second operating system control unit 180 may be used to execute a Windows operating system. The first os control unit 110 and the second os control unit 180 may be connected to each other through an HDMI (High Definition Multimedia Interface) line. It should be noted that, when the first operating system control unit 110 executes the first operating system, the second operating system control unit 180 suspends the execution of the second operating system; when the second operating system control unit 180 executes the second operating system, the first operating system control unit 110 suspends execution of the first operating system. Namely, in the interactive flat panel of the dual system, the switching between the first operating system and the second operating system can be realized.
The second operating system control unit 180 is connected to the third output terminal of the first switch 130 based on the connection of the second operating system control unit 180 to the first operating system control unit 110. Then, the user equipment 160 establishes a connection with the interactive tablet, if the second operating system control unit 180 is in an operating state and the first operating system control unit 110 is in a non-operating state (i.e. when the interactive tablet is currently in the second operating system state), a second switching instruction is generated by the first operating system control unit 110 and transmitted to the first switch 130, so that the first switch 130 switches on the third output terminal of the first switch 130 according to the second switching instruction, i.e. switches on a signal channel between the first switch 130 and the second operating system control unit 180, so that an output signal of the input equipment 170 is transmitted to the second operating system control unit 180 through the first switch 130. The second switching instruction may be generated by the second operating system control unit 180. For example, the second os control unit 180 may generate a second switching command according to the current operating state and the received input signal, and transmit the second switching command to the first switch 130. The first switching instruction may be a level signal (e.g., a high level signal or a low level signal), and the first switching instruction may also be a PWM signal with a corresponding duty ratio.
For example, when the user device 160 establishes a connection with the interactive tablet, and the user device 160 transmits a USB (Universal Serial Bus) signal to the external interface 120, if the interactive tablet is currently in a Windows system state and does not receive a switching request, the third output terminal of the first switch 130 is turned on, so that the output signal of the input device 170 is transmitted to the second operating system control unit 180 through the first switch 130. When the user equipment 160 is connected to the interactive tablet and the user equipment 160 transmits the video signal to the external interface 120, if the interactive tablet is currently in the Windows system state and does not receive the switching request, the third output terminal of the first switch 130 is turned on, so that the output signal of the input equipment 170 is transmitted to the second operating system control unit 180 through the first switch 130, thereby improving the universality of the signal switching system and enhancing the convenience of application on the dual-system interactive tablet.
In order to further increase the diversity of the signal switching, so that the signal inputted by the user equipment 160 can be transmitted in different operating systems, in one example, as shown in fig. 3, the signal switching system further includes a third switch 190, a first input terminal of the third switch 190 is connected to the second output terminal of the second switch 140, a first output terminal of the third switch 190 is connected to the first operating system control unit 110, and a second output terminal of the third switch 190 is connected to the second operating system control unit 180.
When the first os control unit 110 is in the working state, the second switch 140 turns on the signal path between the second switch 140 and the external interface 120 and the signal path between the second switch 140 and the third switch 190 according to the third switching instruction, and turns on the signal path between the third switch 190 and the first os control unit 110, so that the second input signal of the user equipment 160 is transmitted to the first os control unit 110 through the second switch 140 and the third switch 190 in sequence. When the second os control unit 180 is in the working state, the second switch 140 turns on the signal path between the second switch 140 and the external interface 120, the signal path between the second switch 140 and the third switch 190, and the signal path between the third switch 190 and the second os control unit 180 according to the fourth switching command, so that the second input signal of the user equipment 160 is transmitted to the second os control unit 180 through the second switch 140 and the third switch 190 in sequence.
Wherein the third switch 190 may include 1 input (i.e., a first input) and 2 outputs (i.e., a first output and a second output), the first input of the third switch 190 may be connected to the second output of the second switch 140, in one example, the first input of the third switch 190 may be directly connected to the second output of the second switch 140; a first input of the third switch 190 may be indirectly connected to a second output of the second switch 140. The third switch 190 can switch the corresponding output terminal to be conducted according to the corresponding switching command, for example, the third switch 190 can switch the first output terminal of the third switch 190 to be conducted according to the third switching command, so as to conduct the signal path between the third switch 190 and the first os control unit 110. The third switch 190 can also conduct the second output terminal of the third switch 190 according to the fourth switching command, thereby conducting the signal path between the third switch 190 and the second os control unit 180. It should be noted that when any one of the 2 output terminals of the third switch 190 is turned on, the remaining one output terminal is turned off.
The third switching instruction may be generated by the first operating system control unit 110, for example, the third switching instruction may be a level signal (e.g., a high level signal or a low level signal), and the third switching instruction may also be a PWM signal with a corresponding duty ratio. The fourth switching instruction may be generated by the second operating system control unit 180, for example, the fourth switching instruction may be a level signal (e.g., a high level signal or a low level signal), and the fourth switching instruction may also be a PWM signal with a corresponding duty ratio. For example, the signal switching system may switch the instruction according to the current operating system state and the type of the input signal transmitted by the user equipment 160. If the first os control unit 110 is in an active state and the detected input signal transmitted by the ue 160 is the second input signal, the first os control unit 110 may generate the third switching instruction. Also, if the second os control unit 180 is in an operating state and the detected input signal transmitted by the ue 160 is the second input signal, the second os control unit 180 may generate the fourth switching instruction.
Based on the connection of the first input terminal of the third switch 190 with the second output terminal of the second switch 140, the connection of the first output terminal of the third switch 190 with the first os control unit 110, the connection of the second output terminal of the third switch 190 with the second os control unit 180, and the connection of the ue 160 with the interactive tablet, if the first os control unit 110 is in the working state and the second os control unit 180 is in the non-working state (i.e. the interactive tablet is currently in the first os state), the third switch command is generated by the first os control unit 110 and transmitted to the second switch 140 and the third switch 190 respectively, so that the second switch 140 switches on the second output terminal and the second input terminal of the second switch 140 according to the third switch command, i.e. switches on the signal channel between the second switch 140 and the third switch 190, and turning on a signal path between the second switch 140 and the external interface 120; the third switch 190 turns on the first output terminal of the third switch 190 according to the third switching command, that is, turns on the signal path between the third switch 190 and the first os control unit 110, so that the second input signal of the ue 160 is transmitted to the first os control unit 110 through the second switch 140 and the third switch 190 in sequence.
If the second os control unit 180 is in the working state and the first os control unit 110 is in the non-working state (i.e. the interactive tablet is currently in the second os state), a fourth switching command is generated by the second os control unit 180 and transmitted to the second switch 140 and the third switch 190, respectively, so that the second switch 140 switches on the second output terminal and the second input terminal of the second switch 140 according to the fourth switching command, i.e. switches on the signal channel between the second switch 140 and the third switch 190 and switches on the signal channel between the second switch 140 and the external interface 120; the third switch 190 turns on the second output terminal of the third switch 190 according to the fourth switching command, that is, turns on the signal path between the third switch 190 and the second os control unit 180, so that the second input signal of the ue 160 is transmitted to the second os control unit 180 through the second switch 140 and the third switch 190 in sequence.
For example, when the user device 160 is connected to the interactive tablet, and the user device 160 transmits a USB signal to the external interface 120, if the interactive tablet is currently in the android system state, the second output terminal and the second input terminal of the second switch 140 are turned on, and the first output terminal of the third switch 190 is turned on, so that the USB signal of the user device 160 sequentially passes through the external interface 120, the second switch 140, and the third switch 190 and is transmitted to the first operating system control unit 110. After the user device 160 is connected to the interactive tablet, when the user device 160 transmits the USB signal to the external interface 120, if the interactive tablet is currently in the Windows system state, the second output terminal and the second input terminal of the second switch 140 are turned on, and the first output terminal of the third switch 190 is turned on, so that the USB signal of the user device 160 sequentially passes through the external interface 120, the second switch 140, and the third switch 190 and is transmitted to the second operating system control unit 180, thereby improving the diversity of signal switching, and enabling the signal input by the user device 160 to be transmitted in different operating systems.
In one example, the external interface 120 is a TYPEC (USB Type-C) interface; the first input signal is a DP (display Port) signal, and the second input signal is a USB signal. The external interface 120 is a TYPEC interface, that is, the external interface 120 can be used to transmit USB signals and DP signals, and the external interface 120 can also be used to charge the external, for example, when the user equipment 160 is plugged into the external interface 120, the external interface 120 can provide power to the user equipment 160.
Illustratively, when the first operating system control unit 110 is in the working state, the first switch 130 is further configured to turn on a signal channel between the first switch 130 and the first operating system control unit 110 according to a fifth switching instruction, so that the output signal of the input device 170 is transmitted to the first operating system control unit 110 through the first switch 130.
If the user equipment 160 is connected to the interactive tablet, if the first operating system control unit 110 is in the working state and the second operating system control unit 180 is in the non-working state (i.e. the interactive tablet is currently in the first operating system state), a fifth switching instruction is generated by the first operating system control unit 110 and transmitted to the first switch 130, so that the first switch 130 turns on the first output terminal of the first switch 130 according to the fifth switching instruction, i.e. turns on a signal channel between the first switch 130 and the first operating system control unit 110, so that an output signal of the input equipment 170 is transmitted to the first operating system control unit 110 by the first switch 130. Note that the fifth switching instruction may be generated by the first operating system control unit 110. For example, the first os control unit 110 may generate a fifth switching command according to the current operating state and the received input signal, and transmit the fifth switching command to the first switch 130. The fifth switching command may be a level signal (e.g., a high level signal or a low level signal), and the fifth switching command may also be a PWM signal with a corresponding duty ratio.
For example, when the user device 160 is connected to the interactive tablet and the user device 160 transmits a USB signal to the external interface 120, if the interactive tablet is currently in the android system state, the first output terminal of the first switch 130 is turned on, so that the output signal of the input device 170 is transmitted to the first operating system control unit 110 through the first switch 130. After the user equipment 160 is connected to the interactive tablet, when the user equipment 160 transmits a video signal to the external interface 120, if the interactive tablet is currently in the android system state, the first output terminal of the first switch 130 is turned on, so that the output signal of the input equipment 170 is transmitted to the first operating system control unit 110 through the first switch 130, thereby further improving the universality of the signal switching system and enhancing the convenience of application on the dual-system interactive tablet.
To further improve the signal transmission efficiency and the convenience of signal switching, as shown in fig. 4, in one example, the signal switching system further includes a first hub 210, the first hub 210 being connected between the input device 170 and the first input terminal of the first switch 130.
Illustratively, if the input device 170 includes a CAMERA module, a sound module, and a TOUCH module, the CAMERA module, the sound module, and the TOUCH module are respectively connected to corresponding input ports of the first hub 210, that is, the CAMERA module may transmit a CAMERA signal to the first switch 130 through the first hub 210, the sound module may transmit a MIC signal to the first switch 130 through the first hub 210, and the TOUCH module may transmit a TOUCH signal to the first switch 130 through the first hub 210. When the first output terminal of the first switch 130 is turned on, the first switch 130 may transmit the CAMERA signal, the MIC signal, and the TOUCH signal to the first operating system control unit 110, so that the first operating system control unit 110 processes the CAMERA signal, the MIC signal, and the TOUCH signal. When the second output terminal of the first switch 130 is turned on and the first output terminal of the second switch 140 is turned on, the first switch 130 may transmit the CAMERA signal, the MIC signal, and the TOUCH signal sequentially through the second switch 140 and the external interface 120 to the user equipment 160, so that the TOUCH module, the CAMERA module, and the sound module are switched to the user equipment 160, and the purpose that the user equipment 160 uses the interactive tablet CAMERA, sound, TOUCH, and other devices is achieved. When the third output terminal of the first switch 130 is turned on, the first switch 130 may transmit the signal of CAMERA, the signal of MIC, and the signal of TOUCH to the second operating system control unit 180, so that the second operating system control unit 180 processes the signal of CAMERA, the signal of MIC, and the signal of TOUCH, thereby further improving the signal transmission efficiency and the convenience of signal switching.
In one example, as shown in fig. 4, the signal switching system further includes a second hub 220, the second hub 220 being connected between the second output of the second switch 140 and the first input of the third switch 190.
The second HUB 220 is referred to as a HUB, and the second HUB 220 may be a USB HUB. The input of the second hub 220 is connected to the second switch 140, and the output of the second hub 220 is connected to the third switch 190. The user device 160 is connected to the external interface 120, the user device 160 transmits a USB signal to the external interface 120,
when the second output terminal and the second input terminal of the second switch 140 are turned on, the external interface 120 may transmit the received USB signal to the second switch 140, and the second switch 140 may transmit the USB signal to the third switch 190 through the second hub 220. When the first output terminal of the third switch 190 is turned on, the third switch 190 may transmit the USB signal to the first os control unit 110, so that the first os control unit 110 processes the USB signal; when the second output terminal of the third switch 190 is turned on, the third switch 190 may transmit the USB signal to the second os control unit 180, so that the second os control unit 180 processes the USB signal.
In one example, as shown in fig. 5, the CAMERA signal output by the CAMERA module, the TOUCH signal output by the TOUCH module, and the MIC signal output by the voice module enter the first switch (i.e., SW1 in fig. 5) via the first HUB (i.e., USB HUB1 in fig. 5), and may be switched to the second operating system control unit (i.e., WINDOWS in fig. 5), the first operating system control unit (i.e., ANDROID SOC in fig. 5), and the second switch (i.e., SW2 in fig. 5) in three ways based on the switching of the first switch. Based on the second switch (i.e. SW2 in fig. 5), the controller can receive the cam signal, TOUCH signal and MIC signal from SW 1; and transmits the signal CAMERA, TOUCH, and MIC to an external interface (i.e., TYPEC in fig. 5), and the signal CAMERA, TOUCH, and MIC may be output from TYPEC. The third switcher (i.e., SW3 in fig. 5) may receive the USB signal of the user equipment sequentially coming through TYPEC, SW2, the second HUB (i.e., USB HUB2 in fig. 5) based on the switching of the second switcher and the multiplexing of the USB differential lines in the external interface.
For example, when the user equipment inserted with the external interface (i.e., TYPEC in fig. 5) outputs a USB signal, if the dual system interactive tablet is in the WINDOWS system state, the first switch (i.e., SW1 in fig. 5) is turned on with the signal path of the second operating system control unit (i.e., WINDOWS in fig. 5), and the cam signal, TOUCH signal, and MIC signal are transmitted to the second operating system control unit (i.e., WINDOWS in fig. 5). The USB signal inputted from the external interface is transmitted to the second switch (i.e. SW2 in fig. 5), and then transmitted to the third switch (i.e. SW3 in fig. 5) after passing through the second HUB (i.e. USB HUB2 in fig. 5), at this time, the third switch (i.e. SW3 in fig. 5) is switched to be conducted with the second os control unit (i.e. WINDOWS in fig. 5), and the USB signal enters the WINDOWS system. If the dual system interactive tablet is in the ANDROID system state, the first switch (i.e., SW1 in fig. 5) is conducted to the signal path of the first os control unit (i.e., ANDROID SOC in fig. 5), and the cam signal, the TOUCH signal, and the MIC signal are transmitted to the first os control unit (i.e., ANDROID SOC in fig. 5). The USB signal inputted from the external interface is transmitted to the second switch (i.e. SW2 in fig. 5), and then transmitted to the third switch (i.e. SW3 in fig. 5) after passing through the second HUB (i.e. USB HUB2 in fig. 5), at this time, the third switch (i.e. SW3 in fig. 5) is switched to be conducted with the first os control unit (i.e. ANDROID SOC in fig. 5), and the USB signal also enters the ANDROID system.
When the user equipment inserted with the external interface (i.e. TYPEC in fig. 5) outputs a video signal (i.e. DP signal), if the dual system interactive tablet is in the WINDOWS system state, the first switch (i.e. SW1 in fig. 5) is conducted with the signal path of the second operating system control unit (i.e. WINDOWS in fig. 5), and the signal of CAMERA, TOUCH and MIC is transmitted to the second operating system control unit (i.e. WINDOWS in fig. 5). And processing the video signal input by the external interface to be used as an input information source of the android system for selection by a user. If the dual system interactive tablet is in the ANDROID system state, the first switch (i.e., SW1 in fig. 5) is conducted to the signal path of the first os control unit (i.e., ANDROID SOC in fig. 5), and the cam signal, the TOUCH signal, and the MIC signal are transmitted to the first os control unit (i.e., ANDROID SOC in fig. 5). The video signal input by the external interface is still used as an input information source of the android system for the user to select after being processed.
If the dual-system interactive tablet is in the ANDROID system state, and the user input source is to select TYPEC at this time, the video signal input by the external interface (i.e. TYPEC in fig. 5) at this time is processed and input to the first operating system control unit (i.e. ANDROID SOC in fig. 5), and is transmitted to the display screen (i.e. PANEL in fig. 5) through the first operating system control unit (i.e. ANDROID SOC in fig. 5) for display; after the first os control unit (i.e., the ANDROID SOC in fig. 5) detects the input TYPE-C signal, it asks the user whether to output the CAMERA signal, TOUCH signal, and MIC signal to the user device (e.g., a notebook computer). If the user selects the CAMERA signal, the TOUCH signal, and the MIC signal to be output to the user equipment (e.g. a notebook computer), at this time, the first switch (i.e. SW1 in fig. 5) switches to be turned on with the second switch (i.e. SW2 in fig. 5), and then the CAMERA signal, the TOUCH signal, and the MIC signal are sequentially transmitted to the external interface (i.e. TYPEC in fig. 5) via the first HUB (i.e. USB HUB1 in fig. 5), the first switch (i.e. SW1 in fig. 5), and the second switch (i.e. SW2 in fig. 5), and are output to the user equipment via the USB differential line of the external interface (i.e. TYPEC in fig. 5), so as to achieve the functions of the CAMERA module, the audio module, and the TOUCH module for the user equipment, and when the video screen projection of the external interface (i.e. TYPEC in fig. 5) for the external equipment (e. such as a notebook computer) is implemented, the high-definition CAMERA head capable of outputting an interactive tablet (e. a USB conference tablet) based on the port, Array microphone and touch inverse control input device.
In one example, a USB differential line in a TYPE-C port is multiplexed while a video signal of a user equipment is transmitted through the TYPE-C port of an interactive panel, a first switcher is arranged on a line, and on the basis of meeting the full functions of USB, DP input and external charging of a traditional TYPE-C port, the USB differential line can be adapted to be used for USB input or matched with the input DP video signal to output a camera, a microphone and a touch signal of the interactive panel to the user equipment such as a notebook computer by identifying what the TYPE-C port input is and automatically switching the output end of the first switcher and the output end of the second switcher.
In one example, as shown in fig. 6, there is provided a signal switching method including:
step S610, acquiring a first input signal of the user equipment, processing the first input signal, and transmitting the processed signal to a display screen for displaying.
For specific description, please refer to the above contents, and details are not repeated herein, where the details are that the user equipment obtains the first input signal of the user equipment, processes the first input signal, and transmits the processed signal to the display screen for display.
Step S610, acquiring a handover request, and generating a first handover command according to the handover request.
The switching request, the first switching instruction, and the obtaining of the switching request, and generating a detailed description of the first switching instruction according to the switching request refer to the above contents, which are not described herein again.
Step S610, transmitting the first switching command to the first switch and the second switch, respectively; the first switching instruction is used for instructing the first switch to be conducted to a signal channel between the second switch and the first switch, so that the output signal of the input device is transmitted to the second switch through the first switch; the first switching instruction is further used for instructing the second switch to conduct a signal channel between the second switch and the external interface, so that the second switch transmits the received output signal to the user equipment through the external interface.
The switching device comprises a first switcher, a second switcher, an input device, user equipment and a first switching instruction, wherein the first switcher and the second switcher are respectively transmitted with a first switching instruction; for a detailed description that the first switch command is used to instruct the first switch to switch on a signal path between the first switch and the second switch, so that the output signal of the input device is transmitted to the second switch through the first switch, please refer to the above description, which is not repeated herein.
In the above embodiment, multiplexing of the external interface can be realized while the first input signal is transmitted by using the external interface of the interactive tablet, and the first switch and the second switch are automatically switched to transmit the output signal of the input device to the user equipment, so that the input device (such as a high-pixel camera) on the interactive tablet is switched to the user equipment for use. When the user equipment is connected to the external interface, the first input signal can be uploaded to the display screen for display, and the first switcher and the second switcher can be controlled to switch, so that the input equipment can be switched out for the user equipment to use, and the purpose that the user equipment uses the input equipment of the interactive tablet is achieved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A signal switching system, comprising:
the first operating system control unit is used for connecting a display screen;
an external interface connected to the first operating system control unit; the external interface is also used for connecting user equipment; the external interface is configured to receive a first input signal of the user equipment and transmit the first input signal to the first operating system control unit, so that the first operating system control unit processes the first input signal and transmits the processed signal to the display screen for display;
a first switch, a first input end of the first switch is used for connecting an input device, and a first output end of the first switch is connected with the first operating system control unit;
a second switch, a first input terminal of the second switch being connected to a second output terminal of the first switch, a second input terminal of the second switch being used for connecting the external interface, and a first output terminal of the second switch being connected to the external interface;
wherein the first switch is configured to conduct a signal channel between the first switch and the second switch according to a first switch instruction, so that the output signal of the input device is transmitted to the second switch through the first switch; the second switch is configured to conduct a signal channel between the second switch and the external interface according to the first switching instruction, so that the second switch transmits the received output signal to the user equipment through the external interface.
2. The signal switching system according to claim 1, further comprising a second operating system control unit, the second operating system control unit being connected to the first operating system control unit, the second operating system control unit being connected to the third output terminal of the first switch;
when the second operating system control unit is in a working state, the first switch is further configured to conduct a signal channel between the first switch and the second operating system control unit according to a second switching instruction, so that the output signal of the input device is transmitted to the second operating system control unit through the first switch.
3. The signal switching system of claim 2, further comprising a third switch, a first input of the third switch being connected to a second output of the second switch, a first output of the third switch being connected to the first os control unit, a second output of the third switch being connected to the second os control unit;
when the first operating system control unit is in a working state, the second switch conducts a signal channel between the second switch and the external interface, a signal channel between the second switch and the third switch and a signal channel between the third switch and the first operating system control unit according to a third switching instruction, so that a second input signal of the user equipment is transmitted to the first operating system control unit through the second switch and the third switch in sequence;
when the second operating system control unit is in a working state, the second switch switches on a signal channel between the second switch and the external interface, a signal channel between the second switch and the third switch and a signal channel between the third switch and the second operating system control unit according to a fourth switching instruction, so that the second input signal of the user equipment is transmitted to the second operating system control unit through the second switch and the third switch in sequence.
4. The signal switching system of claim 3, wherein the external interface is a TYPEC interface; the first input signal is a DP signal, and the second input signal is a USB signal.
5. The signal switching system according to claim 4, wherein when the first operating system control unit is in the operating state, the first switch is further configured to conduct a signal path between the first switch and the first operating system control unit according to a fifth switching instruction, so that the output signal of the input device is transmitted to the first operating system control unit through the first switch.
6. The signal switching system according to any one of claims 1 to 5, further comprising a first hub connected between the input device and the first input of the first switch.
7. The signal switching system of claim 6, further comprising a second hub connected between the second output of the second switch and the first input of the third switch.
8. The signal switching system of claim 7, wherein the input device comprises any one or any combination of the following: camera module, sound module and touch module.
9. The signal switching system according to claim 8, wherein the first operating system control unit is configured to execute an android operating system; the second operating system control unit is used for executing a Windows operating system.
10. A method of signal switching, comprising:
acquiring a first input signal of user equipment, processing the first input signal, and transmitting the processed signal to a display screen for displaying;
acquiring a switching request, and generating a first switching instruction according to the switching request;
transmitting the first switching instruction to a first switcher and a second switcher respectively; the first switching instruction is used for instructing the first switch to be switched on to a signal channel between the first switch and the second switch so that an output signal of an input device is transmitted to the second switch through the first switch; the first switching instruction is further used for instructing the second switch to conduct a signal channel between the second switch and an external interface, so that the second switch transmits the received output signal to the user equipment through the external interface.
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