CN220254553U - Video switching station control circuit and control device - Google Patents
Video switching station control circuit and control device Download PDFInfo
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Abstract
The utility model discloses a control circuit and a control device of a video switching station, wherein the control circuit comprises a main control module, a video processing module, a signal conversion module, a communication module, a key control module, a first display module and a second display module; the video processing module is respectively and electrically connected with the first display module, the main control module and the signal conversion module, the signal conversion module is electrically connected with the main control module, and the main control module is electrically connected with the second display module. According to the utility model, the display screen of the switching platform can select to display a menu interface or a video interface, and the external display screen can realize the display of the video interface, so that when a user operates the menu interface, the menu interface does not shade the video interface; in addition, the video processing module can receive the input of the multipath audio and video signals, so that the first display module and the second display module can realize single-picture or multi-picture display, the use requirements of different scenes such as live broadcasting, guided broadcasting and the like are met, and the user experience is high.
Description
Technical Field
The present utility model relates to the field of video switching stations, and in particular, to a control circuit and a control device for a video switching station.
Background
The video switching station is a device for live broadcasting or recording video, which can perform processes such as selecting, mixing, switching, special effects and the like on multiple paths of video signals, and output the processed signals to devices such as a display, a video recorder, an encoder and the like. The video switching station is widely applied to the fields of television stations, studios, conference rooms, education and training, network live broadcasting and the like.
With the development of internet technology, the live broadcast of the whole people becomes a new media form, more and more people start to join in the live broadcast line, and show own talents, knowledge or lives. With the fire explosion of the direct broadcast market, the market of the video switching station industry is also fire exploded. The video switching station can improve the quality and effect of live broadcast and increase the participation degree and viscosity of audience.
However, existing video switching stations have some problems and disadvantages. On the one hand, with diversification of video live scenes, live videos to be controlled are increasingly guided, from the previous two paths of videos to four paths of videos, to the current six paths of video switching even more paths of videos, videos to be accessed to a switching station are increasingly more, and video interfaces to be previewed are increasingly more. On the other hand, the space of the multi-picture preview interface of the switching table is limited, and when more and more interfaces need to be read, the menu display space of the switching table is compressed, so that the menu has no position display; the menu may obscure portions of the video preview interface, affecting the viewing and control of the video content and quality by the director. Thus, improvements and perfection are needed in the art.
Disclosure of Invention
The utility model aims to provide a control circuit and a control device of a frequency switching table, wherein in the scheme, a display screen of the switching table can select to display a menu interface or a video interface, and an external display screen can realize the display of the video interface, so that a user does not shade the video interface when operating the menu interface; in addition, the video processing module can receive the input of the multipath audio and video signals, so that the first display module and the second display module can realize single-picture or multi-picture display, the use requirements of different scenes such as live broadcasting, guided broadcasting and the like are met, and the user experience is high.
In order to solve the technical problems, the application provides a control circuit of a video switching station, which comprises a main control module, a video processing module, a signal conversion module, a communication module, a key control module, a first display module and a second display module;
the video processing module is respectively and electrically connected with the first display module, the main control module and the signal conversion module, the signal conversion module is electrically connected with the main control module, the key control module is electrically connected with the main control module through the communication module, and the main control module is electrically connected with the second display module;
the video processing module is used for receiving multiple paths of audio and video input signals and performing multi-picture display processing on the multiple paths of audio and video input signals;
the first display module is used for displaying single pictures or multiple pictures of the multipath audio and video input signals;
the signal conversion module is used for carrying out signal format conversion on the multipath audio and video input signals; the main control module is used for receiving the multi-path audio and video input signals after format conversion, and the second display module is used for carrying out single-picture or multi-picture display on the multi-path audio and video input signals after format conversion;
the key control module is used for switching and controlling the display pictures of the first display module or the second display module.
Preferably, the first display module comprises an HDMI interface and a first display;
the HDMI interface is electrically connected with the video processing module, and the first display is electrically connected with the HDMI interface.
Preferably, the key control module comprises a key main control unit and a key unit;
the key main control unit is respectively and electrically connected with the key unit and the communication module, and the communication module is electrically connected with the main control module.
Preferably, the communication module comprises a first CAN bus receiving and transmitting unit and an antistatic interface unit;
the first CAN bus receiving and transmitting unit is respectively and electrically connected with the key control module and the antistatic interface unit, and the antistatic interface unit is electrically connected with the main control module.
Preferably, the signal conversion module comprises a signal conversion unit and an EMI filtering unit;
the signal conversion unit is respectively and electrically connected with the video processing module and the EMI filtering unit, and the EMI filtering unit is electrically connected with the main control module.
Preferably, the master control module comprises a master control unit and a second CAN bus receiving and transmitting unit;
the main control unit is respectively and electrically connected with the signal conversion module, the second display module and the second CAN bus receiving and transmitting unit, and the second CAN bus receiving and transmitting unit is electrically connected with the first CAN bus receiving and transmitting unit.
Preferably, the video processing module is configured as an FPGA processor.
Preferably, the main control module is set as an MCU controller.
Preferably, the signal conversion unit is configured to convert the LVDS signal into an mbi signal.
In order to solve the technical problems, the application provides a video switching station control device, which comprises the video switching station control circuit.
The video switching station control circuit and the switching station have the following beneficial effects that the video switching station control circuit disclosed by the utility model comprises: the system comprises a main control module, a video processing module, a signal conversion module, a communication module, a key control module, a first display module and a second display module; the video processing module is used for receiving the multi-path audio and video input signals and carrying out multi-picture display processing on the multi-path audio and video input signals; the first display module is used for displaying single pictures or multiple pictures of the processed multipath audio and video input signals; the signal conversion module is used for carrying out signal format conversion on the multipath audio and video input signals; the main control module is used for receiving the multi-channel audio and video input signals after format conversion, and the second display module is used for carrying out single-picture or multi-picture display on the multi-channel audio and video input signals after format conversion; the key control module is used for performing switching control on the display picture of the first display module or the second display module. According to the utility model, the display screen of the switching platform can select to display a menu interface or a video interface, and the external display screen can realize the display of the video interface, so that when a user operates the menu interface, the menu interface does not shade the video interface; in addition, the video processing module can receive the input of the multipath audio and video signals, so that the first display module and the second display module can realize single-picture or multi-picture display, the use requirements of different scenes such as live broadcasting, guided broadcasting and the like are met, and the user experience is high.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a schematic diagram of a video switching station control circuit according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic diagram of a video switching station control circuit according to a preferred embodiment of the present utility model;
FIG. 3 is a schematic diagram of a video switching station control circuit according to another preferred embodiment of the present utility model;
FIG. 4 is a schematic circuit diagram of a key master control unit of a video switching station control circuit according to a preferred embodiment of the present utility model;
FIG. 5 is a schematic circuit diagram of a first CAN bus transceiver unit of a video switching station control circuit according to a preferred embodiment of the utility model;
FIG. 6 is a schematic circuit diagram of an antistatic interface unit of a video switching station control circuit according to a preferred embodiment of the present utility model;
FIG. 7 is a schematic circuit diagram of a signal conversion module of a video switching station control circuit according to a preferred embodiment of the present utility model;
fig. 8 is a schematic circuit diagram of a second CAN bus transceiver unit of a video switching station control circuit according to a preferred embodiment of the present utility model.
Detailed Description
The core of the application is to provide a control circuit and a control device of a frequency switching table, in the scheme, a display screen of the switching table can select to display a menu interface or a video interface, and an external display screen can realize the display of the video interface, so that a user does not shade the video interface when operating the menu interface; in addition, the video processing module can receive the input of the multipath audio and video signals, so that the first display module and the second display module can realize single-picture or multi-picture display, the use requirements of different scenes such as live broadcasting, guided broadcasting and the like are met, and the user experience is high.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a control circuit of a video switching station provided in the present application, which includes a main control module 1, a video processing module 2, a signal conversion module 3, a communication module 4, a key control module 5, a first display module 6 and a second display module 7;
the video processing module 2 is respectively and electrically connected with the first display module 6, the main control module 1 and the signal conversion module 3, the signal conversion module 3 is electrically connected with the main control module 1, the key control module 5 is electrically connected with the main control module 1 through the communication module 4, and the main control module 1 is electrically connected with the second display module 7;
the video processing module 2 is used for receiving the multi-path audio and video input signals and performing multi-picture display processing on the multi-path audio and video input signals;
the first display module is used for carrying out single-picture or multi-picture display on the multi-channel audio and video input signals;
the signal conversion module 3 is used for carrying out signal format conversion on the multipath audio and video input signals; the main control module 1 is used for receiving the multi-channel audio and video input signals after format conversion, and the second display module 7 is used for displaying pictures of the multi-channel audio and video input signals after format conversion;
the key control module 5 is used for performing switching control on a menu interface or a display screen of the first display module 6.
In the prior art, the video switching station has some problems and disadvantages. On the one hand, with diversification of video live scenes, live videos to be controlled are increasingly guided, from the previous two paths of videos to four paths of videos, to the current six paths of video switching even more paths of videos, videos to be accessed to a switching station are increasingly more, and video interfaces to be previewed are increasingly more. On the other hand, the space of the multi-picture preview interface of the switching table is limited, and when more and more interfaces need to be read, the menu display space of the switching table is compressed, so that the menu has no position display; the menu may obscure portions of the video preview interface, affecting the viewing and control of the video content and quality by the director.
To above-mentioned shortcoming, through main control module 1, video processing module 2, signal conversion module 3, communication module 4, button control module 5, first display module 6 and the cooperation of second display module 7 in this application have realized not sheltering from demonstration and multi-picture display, satisfy the user demand such as different scenes such as live broadcast, guide broadcast, user experience is high.
Referring to fig. 2, fig. 2 is a schematic diagram of a video switching station control circuit provided in the present application.
Specifically, in this embodiment, the multiple audio/video signals may include one or more of a first SDI signal, a second SD I signal, a third SDI signal, a first HDMI signal, an LI NE signal, or an MI C signal; after receiving the multiple paths of audio and video signals, the video processing module 2 processes the multiple paths of audio and video signals and transmits the processed multiple paths of audio and video signals to the first display module for single-picture or multi-picture display; on the other hand, the multi-channel audio/video signals are transmitted to the main control module 1 in the form of BT1120, and the main control module 1 performs network plug flow. Meanwhile, the video processing module 2 transmits the multi-channel audio and video signals to the signal conversion module 3 for signal format conversion and then to the main control module 1, the main control module 1 receives the multi-channel audio and video input signals after format conversion, and the second display module is used for displaying pictures of the multi-channel audio and video input signals after format conversion.
Specifically, in the present embodiment, by pressing a key in the key control module 5, a menu pop-up may be selected, in which the menu is displayed in the display screen of the second display module. In addition, a plurality of keys are arranged on the switching table, and through key control, the switching control of single-picture display or multi-picture display on the first display module and single-picture display or multi-picture display on the second display module can be realized. Therefore, the switching platform can realize menu operation on the second display module, and the live preview picture and effect are observed on the first display module in real time, so that when a user operates a menu interface, the menu interface does not shade a video interface on the first display module.
Specifically, the display screen of the first display module or the second display module can also be switched by controlling and selecting the video input source through keys. The display screens of the first display module and the second display module may be the same or different, and are not particularly limited herein.
In summary, the present application provides a control circuit for a video switching station, in this scheme, a main control module 1, a video processing module 2, a signal conversion module 3, a communication module 4, a key control module 5, a first display module 6 and a second display module 7; the video processing module 2 is electrically connected with the first display module 6, the main control module 1 and the signal conversion module 3 respectively, the signal conversion module 3 is electrically connected with the main control module 1, the key control module 5 is electrically connected with the main control module 1 through the communication module 4, and the main control module 1 is electrically connected with the second display module 7. According to the utility model, the display screen of the switching platform can select to display a menu interface or a video interface, and the external display screen can realize the display of the video interface, so that when a user operates the menu interface, the menu interface does not shade the video interface; in addition, the video processing module 2 of the utility model can receive the input of the multipath audio and video signals, so that the first display module 6 and the second display module 7 can realize single-picture or multi-picture display, thereby meeting the use requirements of different scenes such as live broadcast, guide broadcast and the like and having high user experience.
Based on the above embodiments:
referring to fig. 3, fig. 3 is a schematic structural diagram of a video switching station control circuit provided in the present application.
As a preferred embodiment, the first display module 6 includes an HDMI interface 61 and a first display 62;
the HDMI interface 61 is electrically connected to the video processing module 2, and the first display 62 is electrically connected to the HDMI interface 61.
Specifically, in the present embodiment, the first display 62 is accessed through the HDM I interface 61, and the first display 62 is configured as an LCD display screen.
Referring to fig. 4, fig. 4 is a schematic circuit diagram of a key master control unit provided in the present application.
As a preferred embodiment, the key control module 5 includes a key main control unit 51 and a key unit 52;
the key main control unit 51 is electrically connected with the key unit 52 and the communication module 4, and the communication module 4 is electrically connected with the main control module 1.
Specifically, in the present embodiment, the key main control unit 51 is set to an MCU, and the model is STM32F103R8T6. In another preferred embodiment, the chip type of the key main control unit 51 is not particularly limited.
Referring to fig. 5, fig. 5 is a schematic circuit diagram of a first CAN bus transceiver unit provided in the present application.
Referring to fig. 6, fig. 6 is a schematic circuit diagram of an antistatic interface unit provided in the present application.
As a preferred embodiment, the communication module 4 includes a first CAN bus transceiver unit 41 and an antistatic interface unit 42;
the first CAN bus transceiver 41 is electrically connected to the key control module 5 and the antistatic interface unit 42, and the antistatic interface unit 42 is electrically connected to the main control module 1.
Specifically, in this embodiment, the first CAN bus transceiver 41 communicates with the main control module 1, so as to control the screen to be displayed by the main control module 1, and implement the switching between the multi-screen interface and the menu interface.
Specifically, in the present embodiment, the model of the first CAN bus transceiving unit 41 may be set to SN65HVD230DR. In another preferred embodiment, the first CAN bus transceiving unit 41 is not particularly limited. It CAN be understood that the antistatic interface unit 42 is used for implementing the electrostatic protection of the CAN bus communication, so as to ensure the reliability of the communication between the key control module 5 and the main control module 1.
Referring to fig. 7, fig. 7 is a schematic circuit diagram of a signal conversion module provided in the present application.
As a preferred embodiment, the signal conversion module 3 includes a signal conversion unit 31 and an EMI filter unit 32;
the signal conversion unit 31 is electrically connected to the video processing module 2 and the EMI filter unit 32, respectively, and the EMI filter unit 32 is electrically connected to the main control module 1.
As a preferred embodiment, the signal conversion unit 31 is configured to convert LVDS signals into MI PI signals.
Specifically, in the present embodiment, the model of the signal conversion unit 31 may be set to LT9211. In another preferred embodiment, the model of the signal conversion unit 31 is not particularly limited.
Referring to fig. 8, fig. 8 is a schematic circuit diagram of a second CAN bus transceiver unit provided in the present application.
As a preferred embodiment, the main control module 1 includes a main control unit and a second CAN bus transceiver unit;
the main control unit is respectively and electrically connected with the signal conversion module 3, the second display module 7 and the second CAN bus receiving and transmitting unit, and the second CAN bus receiving and transmitting unit is electrically connected with the first CAN bus receiving and transmitting unit.
As a preferred embodiment, the video processing module 2 is provided as an FPGA processor.
As a preferred embodiment, the main control module 1 is provided as an MCU controller.
Specifically, in the present embodiment, the FPGA processor communicates with the MCU controller via the SP I protocol. In another preferred embodiment, the FPGA processor and the MCU controller may communicate through other serial communication modes such as ic, UART, etc., which are not specifically limited herein.
The application also provides a video switching station control device, which comprises a video switching station control circuit.
For an introduction of a video switching station control circuit provided in the present application, please refer to the above embodiment, and the description is omitted herein.
It should be noted that in this specification the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The control circuit of the video switching station is characterized by comprising a main control module, a video processing module, a signal conversion module, a communication module, a key control module, a first display module and a second display module;
the video processing module is respectively and electrically connected with the first display module, the main control module and the signal conversion module, the signal conversion module is electrically connected with the main control module, the key control module is electrically connected with the main control module through the communication module, and the main control module is electrically connected with the second display module;
the video processing module is used for receiving multiple paths of audio and video input signals and performing multi-picture display processing on the multiple paths of audio and video input signals;
the first display module is used for carrying out single-picture or multi-picture display on the processed multi-channel audio and video input signals;
the signal conversion module is used for carrying out signal format conversion on the multipath audio and video input signals; the main control module is used for receiving the multi-path audio and video input signals after format conversion, and the second display module is used for carrying out single-picture or multi-picture display on the multi-path audio and video input signals after format conversion;
the key control module is used for switching and controlling the display pictures of the first display module or the second display module.
2. The video switching station control circuit of claim 1, wherein the first display module comprises an HDMI interface and a first display;
the HDMI interface is electrically connected with the video processing module, and the first display is electrically connected with the HDMI interface.
3. The video switching station control circuit according to claim 1, wherein the key control module comprises a key main control unit and a key unit;
the key main control unit is respectively and electrically connected with the key unit and the communication module, and the communication module is electrically connected with the main control module.
4. The video switching station control circuit according to claim 1, wherein the communication module comprises a first CAN bus transceiver unit and an antistatic interface unit;
the first CAN bus receiving and transmitting unit is respectively and electrically connected with the key control module and the antistatic interface unit, and the antistatic interface unit is electrically connected with the main control module.
5. The video switching station control circuit of claim 1, wherein the signal conversion module comprises a signal conversion unit and an EMI filter unit;
the signal conversion unit is respectively and electrically connected with the video processing module and the EMI filtering unit, and the EMI filtering unit is electrically connected with the main control module.
6. The video switching station control circuit according to claim 4, wherein the master control module comprises a master control unit and a second CAN bus transceiver unit;
the main control unit is respectively and electrically connected with the signal conversion module, the second display module and the second CAN bus receiving and transmitting unit, and the second CAN bus receiving and transmitting unit is electrically connected with the first CAN bus receiving and transmitting unit.
7. The video switching station control circuit of claim 1, wherein the video processing module is configured as an FPGA processor.
8. A video switching station control circuit according to claim 3, wherein the master control module is configured as an MCU controller.
9. The video switching station control circuit of claim 5, wherein the signal conversion unit is configured to convert LVDS signals to MIPI signals.
10. A video switching station control apparatus comprising a video switching station control circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758357.7U CN220254553U (en) | 2023-07-05 | 2023-07-05 | Video switching station control circuit and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758357.7U CN220254553U (en) | 2023-07-05 | 2023-07-05 | Video switching station control circuit and control device |
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| CN220254553U true CN220254553U (en) | 2023-12-26 |
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| CN202321758357.7U Active CN220254553U (en) | 2023-07-05 | 2023-07-05 | Video switching station control circuit and control device |
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