CN117749967A - Control board card and video processing equipment - Google Patents

Abstract

The application is applicable to the technical field of display and provides a control board card and video processing equipment, wherein the control board card comprises a control instruction receiving and transmitting module, a processing module, a pre-monitoring interface and a synchronous signal receiving and transmitting interface; the control instruction receiving and transmitting module is connected with the processing module through a conversion module; the pre-monitoring interface is connected with the processing module through a first interface chip; the synchronous signal receiving and transmitting interface is connected with the processing module through a synchronous circuit module; the processing module is electrically connected with the interface connector. Because the control panel card that this application provided is last to integrate and to monitor the interface in advance, when consequently video processing equipment adopts this control panel card to realize monitoring function in advance, can reduce the cost and the complexity of inner structure that video processing equipment realized monitoring function in advance.

Description

Control board card and video processing equipment

Technical Field

The application belongs to the technical field of display, and particularly relates to a control panel card and video processing equipment.

Background

In many application scenarios, the display screen serves as a platform for displaying information in real time, and has quite high requirements on the correctness of the display content. Taking the example of displaying video on a display screen, in order to ensure the correctness of video pictures displayed on the display screen, it is generally desirable that before the video processing apparatus outputs video signals to the display screen, the video signals output and/or input by the video processing apparatus can be pre-monitored, that is, the video signals output and/or input by the video processing apparatus can be displayed in preview form on a terminal apparatus connected to the video processing apparatus, so that an operator can preview video pictures to be displayed on the display screen in advance on the terminal apparatus.

In order to implement pre-monitoring of video signals output and/or input to video processing equipment, a dedicated pre-monitoring board is generally required to be provided in video processing equipment, and a pre-monitoring function is implemented through the dedicated pre-monitoring board. However, the dedicated pre-monitor board is expensive, and thus, this approach may not only lead to an increase in the cost of the video processing apparatus, but also to a complicated structure of the video processing apparatus.

Disclosure of Invention

The embodiment of the application provides a control board card and video processing equipment, which can reduce the cost of the video processing equipment for realizing a pre-monitoring function and the complexity of an internal structure.

In a first aspect, an embodiment of the present application provides a control board card, including a control instruction transceiver module, a processing module, a pre-monitoring interface, and a synchronization signal transceiver interface;

the control instruction receiving and transmitting module is connected with the processing module through a conversion module;

the pre-monitoring interface is connected with the processing module through a first interface chip;

the synchronous signal receiving and transmitting interface is connected with the processing module through a synchronous circuit module;

the processing module is electrically connected with the interface connector.

In a second aspect, an embodiment of the present application provides a video processing device, including an input module, an output module, and a main control module; the input module and the output module are respectively connected with the main control module; the master control module comprises a control instruction receiving and transmitting module, a processing module, a pre-monitoring interface and a synchronous signal receiving and transmitting interface;

the control instruction receiving and transmitting module is connected with the processing module through a conversion module;

the pre-monitoring interface is connected with the processing module through an interface chip;

the synchronous signal receiving and transmitting interface is connected with the processing module through a synchronous circuit module;

the processing module is electrically connected with the interface connector.

In a third aspect, an embodiment of the present application provides a card-inserting type video processing device, including an input card, an output card, and a control board card described in the first aspect;

the input card and the output card are respectively and directly electrically connected with the main processing card; or,

the input card, the output card and the control board card are connected through the exchange chip.

The control board card and the video processing equipment provided by the embodiment of the application have the following beneficial effects:

according to the embodiment of the application, the pre-monitoring interface is integrated on the control board card, and the pre-monitoring signal of the video processing equipment is transmitted through the pre-monitoring interface, so that when the video processing equipment adopts the control board card to realize the pre-monitoring function, compared with the special pre-monitoring board card to realize the pre-monitoring function, the cost of the video processing equipment for realizing the pre-monitoring function and the complexity of the internal structure of the video processing equipment are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a control board card according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a control board card according to another embodiment of the present application;

fig. 3 is a schematic structural diagram of a control board card according to another embodiment of the present application

Fig. 4 is a schematic structural diagram of a video processing device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a card-inserting type video processing device according to an embodiment of the present application.

Detailed Description

It is noted that the terminology used in the embodiments of the present application is used for the purpose of explaining specific embodiments of the present application only and is not intended to limit the present application.

In many application scenarios, the display screen serves as a platform for displaying information in real time, and has quite high requirements on the correctness of the display content. Taking the example of video displayed on a display screen, in order to ensure the correctness of video pictures displayed on the display screen, it is generally desirable that before or while the video processing device (e.g., video switcher, video multi-picture processor, video splicer, etc.) outputs video signals to the display screen, the video signals output and/or input by the video processing device can be pre-monitored, i.e., the video signals output and/or input by the video processing device can be displayed in preview form on a terminal device connected to the video processing device, so that an operator can preview the video pictures to be displayed on the display screen in advance on the terminal device.

In general, a video processing device may implement a pre-monitor function in the following manner:

one way is to set a special pre-monitoring board in the video processing equipment, and realize the pre-monitoring function through the special pre-monitoring board. However, the dedicated pre-monitor board is expensive, and thus, this scheme may not only lead to an increase in the cost of the video processing apparatus, but also to a complicated structure of the video processing apparatus.

Another way is to configure the video interface of a part of the output cards in the video processing device as a pre-monitoring interface through software, so as to realize the pre-monitoring function, thus reducing the number of effective interfaces of the output cards for transmitting video signals to the display screen.

Based on this, the embodiment of the application provides a control board card and video processing equipment, through the interface of monitoring in advance on the control board card, the signal of monitoring in advance of video processing equipment is transmitted through this interface of monitoring in advance, consequently, when video processing equipment adopts this control board card to realize monitoring in advance function, for the special board card of monitoring in advance of adoption realizes monitoring in advance function, reduced the cost that video processing equipment realized monitoring in advance function and video processing equipment inner structure's complexity. In addition, the pre-monitoring function can be realized through the pre-monitoring interface on the control panel card, so that the number of effective interfaces of the output card for transmitting video signals to the display screen is not wasted when the video processing equipment realizes the pre-monitoring function.

Fig. 1 is a schematic structural diagram of a control board card according to an embodiment of the present application. As shown in fig. 1, the control board card 10 may include a processing module 101, a control instruction transceiver module 102, a pre-monitor interface 103, and a synchronization signal transceiver interface 104.

The control instruction transceiver module 102 is connected to the processing module 101 through the conversion module 104.

The pre-monitor interface 103 is connected to the processing module 101 through a first interface chip 105.

The synchronization signal transceiver interface 104 is connected to the processing module 101 through the synchronization circuit module 106.

The processing module 101 is electrically connected to the interface connector 107.

In a specific application, the control instruction transceiver module 102 may be used to connect to a host computer. The upper computer can be, for example, a terminal device such as a mobile phone, a tablet computer, a notebook computer or a desktop computer.

Based on this, the control instruction transceiver module 102 may receive the control instruction issued by the host computer, and transmit the control instruction to the processing module 101 through the conversion module 104. The control instruction may be, for example, a pre-monitor signal configuration instruction, where the pre-monitor signal configuration instruction is used to instruct the processing module 101 to transmit the target pre-monitor signal to the pre-monitor interface 103 through the first interface chip 105. The target pre-monitoring signal can be any input card, output card, input module or pre-monitoring signal of the output module which the user wants to pre-monitor.

It is understood that, as shown in fig. 2 or fig. 3, the control instruction transceiver module 102 may include a network port 1021 and a universal serial bus (universal serial bus, USB) interface 1022. The conversion module 104 may include a third interface chip 1041 and a fourth interface chip 1042.

Based on this, the control instruction transceiver module 102 is connected to the processing module 101 through the conversion module 104, and may include: the network port 1021 is connected to the processing module 101 through a third interface chip 1041. The USB interface 1022 is connected to the processing module 101 through the fourth interface chip 1042.

Illustratively, the portal 1021 may be a control portal. Based on this, the third interface chip 1041 may be a port Physical (PHY) chip.

The fourth interface chip 1042 may be, for example, a USB conversion chip.

In a specific application, the pre-monitoring interface 103 may be used to connect to pre-monitoring devices. The pre-monitoring device may be, for example, a display, a desktop host, a notebook computer, or other terminal device.

Based on this, after the first interface chip 105 receives the target pre-monitoring signal sent by the processing module 101, format conversion may be performed on the target pre-monitoring signal, and the target pre-monitoring signal after format conversion may be sent to the pre-monitoring interface. The pre-monitoring interface 103 may send the target pre-monitoring signal after the format conversion to the pre-monitoring device, so that the pre-monitoring device displays a video frame corresponding to the target pre-monitoring signal.

For example, to facilitate the transmission of the pre-monitor signal inside the video processing device, the target pre-monitor signal may be, for example, in a serializer/deserializer (SerDes) format.

Illustratively, the pre-monitor interface 103 may be a video interface and the first interface chip 105 may be a video interface integrated circuit (integrated circuit, IC).

More specifically, the video interface may be, for example, a high-definition multimedia interface (high definition multimedia interface, HDMI), and the first interface chip 105 may be, for example, an HDMI interface IC. Based on this, the target pre-monitor signal after format conversion may be in HDMI format.

Illustratively, the synchronous signal transceiver interface 104 may be a genlock (genlock) interface.

Based on this, the synchronization signal transceiver interface 104 is connected to the processing module 101 through the synchronization circuit module 106, and may include: the genlock interface is connected to the processing module 101 through the synchronization circuit module 106.

In a particular application, the synchronization circuit module 106 may include a signal amplification circuit 1061 and a signal processing circuit 1062. An input end of the signal amplification circuit 1061 is connected to an output end of the synchronous signal receiving/transmitting interface 104, a first output end of the signal amplification circuit 1061 is connected to an input end of the synchronous signal receiving/transmitting interface 104, a second output end of the signal amplification circuit 1061 is connected to an input end of the signal processing circuit 1062, and an output end of the signal processing circuit 1062 is connected to the processing module 101.

Based on this, the synchronization signal transceiving interface 104 can transmit a synchronization signal from an upper computer or a cascade of the upper stage video processing apparatuses to the signal amplifying circuit 1061. The signal amplifying circuit may amplify the synchronization signal, and transmit one path of the amplified synchronization signal to the signal processing circuit 1062, and the other path of the amplified synchronization signal back to the synchronization signal transceiver interface 104. The synchronization signal receiving and transmitting interface 104 may transmit the amplified synchronization signal to a next stage of the video processing apparatus in cascade. The signal processing circuit 1062 may analyze the amplified synchronization signal, separate the amplified synchronization signal, and transmit the multiplexed synchronization signal to the processing module 101.

The signal amplifying circuit 1061 may include a signal amplifying chip and peripheral circuits of the signal amplifying chip, for example. The signal processing circuit 1062 may include a signal processing chip and peripheral circuits of the signal processing chip.

It will be appreciated that the processing module 101, in electrical connection with the interface connector 107, may include:

the data group pins of the interface connector 107 are electrically connected with the data group pins of the processing module 101 to form a data transmission channel, and the communication group pins of the interface connector 107 are electrically connected with the communication group pins of the processing module 101 to form a communication transmission channel.

The data transmission channel may include, for example, a pre-monitor channel, a playback channel, and an audio data channel. The communication transmission channels may include, for example, a synchronization signal channel and a network communication channel.

By way of example, the interface connector 107 may be a high-density connector or other connection device.

It will be appreciated that the control board card 10 may also include a return interface 108 and a second interface chip 109. The echo interface 108 is connected to the processing module through a second interface chip 109.

In a particular application, the echo interface 108 may be used to connect echo devices. The back display device can be, for example, a terminal device such as a mobile phone, a tablet computer, a notebook computer or a desktop computer.

Based on this, the processing module 101 may also transmit the echo signal from any one of the input cards or input modules to the echo interface 108 through the second interface chip 109. The playback interface 108 may send the received playback signal to the playback device, so that the playback device displays a video frame corresponding to the playback signal in a preset Application (APP). The preset APP may be a video play APP, for example.

Illustratively, the echo interface 108 may be a network interface or a video interface.

When the echo interface 108 is a network interface, the second interface chip 109 may be a PHY chip.

When the echo interface 108 is a video interface, the second interface chip 109 may be a video interface IC.

It can be understood that when the playback interface 108 is a video interface, the object shapes and the connection relations of the playback interface 108 and the pre-monitor interface 103 are the same, but the transmitted data content is different. For example, when the echo interface 108 and the pre-monitor interface 103 are both HDMI interfaces, the second interface chip 109 and the first interface chip 105 may be HDMI interface ICs.

It is understood that, as shown in fig. 2, the processing module 101 may include a control chip 1011 and a processing chip 1012, where the control chip 1011 is connected to the processing chip 1012.

The control chip 1011 may be, for example, a micro-processing unit (micro controller unit, ARM) or a micro-control unit (micro controller unit, MCU), and the processing chip 1012 may be, for example, a field-programmable gate array (field-programmable gate array, FPGA) or a video processing IC.

Based on this, the control instruction transceiver module 102 may be connected to the control chip 1011 through the conversion module 104. Specifically, the network port 1021 in the control instruction transceiver module 102 may be connected to the control chip 1011 through the third interface chip 1041 in the conversion module 104, and the USB interface in the control instruction transceiver module 102 may be connected to the control chip 1011 through the fourth interface chip 1042.

The echo interface 108 may be connected to the processing chip 1012 through the second interface chip 109.

The pre-monitor interface 103 may be connected to the processing chip 1012 through the first interface chip 105.

The synchronization signal transceiver interface 104 may be connected to the processing chip 1012 through the synchronization circuit module 106.

The control chip 1011 and the processing chip 1012 may be electrically connected to the interface connector 107, respectively.

Specifically, the data set pins of the processing chip 1012 may be electrically connected with the data set pins of the interface connector 107 to form a data transmission channel, such as a pre-monitor channel, a playback channel, and an audio data channel. The communication group pins of the processing chip 1012 may be electrically connected with the communication group pins of the interface connector 107 to form a communication transmission channel, such as a synchronization signal channel. The communication group pins of the control chip 1011 may also be electrically connected with the communication group pins of the interface connector 107 to form a communication transmission channel, such as a network communication channel.

It is understood that the processing module 101 may be an integrated chip 1013 as shown in fig. 3. The integrated chip 1013 may be, for example, a multiprocessor system-on-chip (MPSOC).

Based on this, the control instruction transceiver module 102 may be connected to the integrated chip 1013 through the conversion module 104. Specifically, the network port 1021 in the control instruction transceiver module 102 may be connected to the integrated chip 1013 through the third interface chip 1041 in the conversion module 104, and the USB interface in the control instruction transceiver module 102 may be connected to the integrated chip 1013 through the fourth interface chip 1042.

The playback interface 108 can be connected to the integrated chip 1013 via the second interface chip 109.

The pre-monitor interface 103 may be connected to the integrated chip 1013 via the first interface chip 105.

The synchronization signal transceiver interface 104 may be connected to the integrated chip 1013 through the synchronization circuit module 106.

The integrated chip 1013 may be electrically connected with the interface connector 107. Specifically, the data group pins of the integrated chip 1013 may be electrically connected to the data group pins of the interface connector 107 to form the data transmission channel, and the communication group pins of the integrated chip 1013 may be electrically connected to the communication group pins of the interface connector 107 to form the communication transmission channel.

It should be noted that, the integrated chip 1013 is a physical device, and a control unit and a processing unit may be integrated therein. The control unit may be understood as an on-chip module that implements the same control function as an ARM or an MCU, and the processing unit may be understood as an on-chip module that implements the same processing function as an FPGA or a video processing IC.

In particular, the integrated chip 1013 may include a reduced gigabit media independent interface (reduced gigabit media independent interface, RGMII) pin and a USB pin. The RGMII pin and the USB pin are pins corresponding to the control unit inside the integrated chip 1013.

Based on this, the network port 1021 may be electrically connected to the RGMII pin of the integrated chip 1013 through the third interface chip 1041, so as to implement data interaction between the network port 1021 and the control unit inside the integrated chip 1013. The USB interface 1022 may be electrically connected to a USB pin of the integrated chip 1013 through the fourth interface chip 1042, so as to implement data interaction between the USB interface 1022 and a control unit inside the integrated chip 1013.

Specifically, the integrated chip 1013 may further include a transistor-transistor logic (TTL) pin and a low voltage differential signal (low voltage differential signaling, LVDS) pin. The TTL pins and the LVDS pins are pins corresponding to the processing unit inside the integrated chip 1013.

Based on this, the echo interface 108 may be electrically connected to the LVDS pins of the integrated chip 1013 through the second interface chip 109, so as to implement data interaction between the echo interface 108 and the processing unit inside the integrated chip 1013. The pre-monitor interface 103 may be electrically connected to LVDS pins of the integrated chip 1013 through the first interface chip 105, so as to implement data interaction between the pre-monitor interface 103 and a processing unit inside the integrated chip 1013. The synchronization signal transceiver interface 104 may be electrically connected to a TTL pin of the integrated chip 1013 through the synchronization circuit module 106 to implement data interaction between the synchronization signal transceiver interface 104 and a processing unit inside the integrated chip 1013.

It is understood that in a specific application, the RGMII pin, the USB pin, the TTL pin, and the LVDS pin may be general-purpose input/output (GPIO) pins.

Specifically, the communication group pins of the integrated chip 1013 may include a communication group pin corresponding to the control unit and a communication group pin corresponding to the processing unit. The data group pins of the integrated chip 1013 may include data group pins corresponding to the processing units.

Based on this, a data transmission channel, such as a pre-monitor channel, a playback channel, and an audio data channel, may be established between the data group pin corresponding to the processing unit and the data group pin of the interface connector 107, and a communication transmission channel, such as a synchronization signal channel, may be established between the communication group pin corresponding to the processing unit and the communication group pin of the interface connector 107. A communication transmission channel, such as a network communication channel, may be established between the communication group pin corresponding to the control unit and the communication group pin of the interface connector 107.

Fig. 4 is a schematic structural diagram of a video processing apparatus according to an embodiment of the present application. As shown in fig. 4, the video processing apparatus may include an input module 41, an output module 42, and a main control module 43. The input module 41 and the output module 42 are connected with the main control module 43.

Specifically, the main control module 43 may include a control instruction transceiver module 102, a processing module 101, a pre-monitor interface 103, and a synchronization signal transceiver interface 104.

The control instruction transceiver module 102 is connected to the processing module 101 through the conversion module 104.

The pre-monitoring interface 103 is connected with the processing module 101 through an interface chip.

The synchronization signal transceiver interface 104 is connected to the processing module 101 through the synchronization circuit module 106.

The processing module 101 is electrically connected to the interface connector 107.

It should be noted that, each module included in the main control module 43 is identical to each module included in the control board 10 in the embodiment corresponding to fig. 1 to 3, and the connection relationship between each module in the main control module 43 or the function of each module may refer to the description related to the control board 10 in the embodiment corresponding to fig. 1 to 3, which is not repeated here.

Specifically, the data set pins of the input module 41 may be electrically connected with the data set pins of the interface connector 107 in the main control module 43 to form a pre-monitoring channel and a playback channel. The data set pins of the output module 42 may be electrically connected to the data set pins of the interface connector 107 in the main control module 43 to form a pre-monitoring channel.

Illustratively, both the pre-monitor channel and the return channel may be high-speed differential signal channels.

Based on this, the input module 41 may send the pre-monitor signal and the echo signal of the input module 41 to the processing module 101 through the pre-monitor channel and the echo channel between it and the interface connector 107, respectively.

The output module 42 may send a pre-monitor signal of the output module 42 to the processing module 101 through a pre-monitor channel between it and the interface connector 107.

It will be appreciated that the pre-monitor signal and the echo signal of the input module 41 may be the result of the processing of the video signal from the video source device by the input module 41. It will be appreciated that the video signal processing mode used by the input module 41 when obtaining the pre-monitor signal is different from the video signal processing mode used when obtaining the echo signal.

The pre-monitor signal of the output module 42 may be a result of the output module 42 processing the video encoded signal from the input module 41. Wherein the video encoding signal may be obtained by encoding the video signal from the video source device by the input module 41. The format of the video encoded signal may be, for example, a SerDes format.

The above can be seen that, by integrating the pre-monitoring interface in the main control module of the video processing device, the pre-monitoring signal of the video processing device is transmitted through the pre-monitoring interface, so that the cost of implementing the pre-monitoring function of the video processing device and the complexity of the internal structure of the video processing device are reduced compared with the case that the dedicated pre-monitoring board card is adopted to implement the pre-monitoring function. In addition, the pre-monitoring function can be realized through the pre-monitoring interface in the main control module, so that the number of effective interfaces of the output module for transmitting video signals to the display screen is not wasted when the video processing equipment realizes the pre-monitoring function.

Fig. 5 is a schematic structural diagram of a card-inserting video processing device according to an embodiment of the present application. As shown in fig. 5, the card-insertion type video processing apparatus may include an input card 51, an output card 52, and a control board card 10. The number of output cards 51 may be N, and the number of output cards 52 may be M, where N and M are positive integers.

Alternatively, as shown in (a) of fig. 5, the input card 51, the output card 52, and the control board card 10 may be connected through the switch chip 54.

Specifically, the data group pins of each input card 51 may be electrically connected to the data group pins of the switch chip 54 to form a pre-monitoring channel and a back-display channel, the data group pins of each output card 52 may be electrically connected to the data group pins of the switch chip 54 to form a pre-monitoring channel, and the data group pins of the switch chip 53 may be electrically connected to the data group pins of the interface connector 107 in the control board card 10 to form a pre-monitoring channel and a back-display channel.

Illustratively, both the pre-monitor channel and the return channel may be high-speed differential signal channels.

Based on this, each input card 51 can send the pre-monitor signal and the return signal of that input card 51 to the processing module 101 in the control board card 10 through the pre-monitor channel and the return channel between it and the switch chip 53, respectively. Each output card 52 may send a pre-monitor signal of the output card 52 to the processing module 101 in the control board card 10 through a pre-monitor channel between the output card 52 and the switch chip 53.

Alternatively, as shown in (b) of fig. 5, the input card 51 and the output card 52 may be directly electrically connected to the control board card 10, respectively.

Specifically, the data group pins of the input card 51 may be electrically connected to the data group pins of the interface connector 107 in the control board card 10 to form a pre-monitoring channel and a back-display channel, and the data group pins of the output card 52 may be electrically connected to the data group pins of the interface connector 107 in the control board card 10 to form a pre-monitoring channel.

It will be appreciated that since the interface connector 107 typically has fewer interfaces for the pre-monitor function or the echo function, it may not be possible to support the establishment of the pre-monitor channel and the echo channel with all the input cards 51, respectively, nor with all the output cards 52, so that the pre-monitor signals and the echo signals of all the input cards 51, and the pre-monitor signals of all the output cards 52, can be transmitted to the processing module 101 in the control board card 10, alternatively, the 1 st input card (i.e., input card 1) 51 may be electrically connected to the interface connector 107 in the control board card 10, and the 2 nd input card (i.e., input card 2) 51 to the i-th input card 51 may be electrically connected to the i-1 st input card 51. The 1 st output card 52 may be electrically connected to the interface connector 107 in the control board card 10, and the 2 nd output card 52 through the j Zhang Shuchu th card 52 in the M Zhang Shuchu th card 52 may be electrically connected to the j-1 st output card 52. Wherein i is more than or equal to 2 and less than or equal to N, and i is an integer. And j is more than or equal to 2 and less than or equal to M, wherein j is an integer.

Specifically, the data group pins of the 1 st input card 51 may be electrically connected to the data group pins of the interface connector 107 to form a pre-monitoring channel and a playback channel, and the data group pins of the i-th input card 51 may be electrically connected to the data group pins of the i-1 st input card 51 to form a pre-monitoring channel and a playback channel.

The data group pins of the 1 st output card 52 may be electrically connected to the data group pins of the interface connector 107 to form a pre-monitoring channel, and the data group pins of the j Zhang Shuchu th output card 52 may be electrically connected to the data group pins of the j-1 st output card 52 to form a pre-monitoring channel.

Based on this, the nth input card 51 can transmit the pre-monitor signal and the return signal of the nth input card 51 to the nth-1 input card 51 through the pre-monitor channel and the return channel, respectively, the nth input card 51 can transmit the pre-monitor signal and the return signal of the nth input card 51 to the nth input card 51 through the pre-monitor channel and the return channel, respectively, the 1 st input card 51 can transmit the pre-monitor signal and the return signal of the 1 st input card 51 to the nth input card 51 to the processing module 101 in the control board card 10 through the pre-monitor channel and the return channel between the 1 st input card and the interface connector 107, respectively.

The M Zhang Shuchu card 52 can transmit the pre-monitoring signal of the M Zhang Shuchu card 52 to the M-1 output card 52 through the pre-monitoring channel, the k Zhang Shuchu card 52 can transmit the pre-monitoring signals of the k Zhang Shuchu card 52 to the M Zhang Shuchu card 52 to the k-1 output card 52 through the pre-monitoring channel, and the 1 st output card 52 can transmit the pre-monitoring signals of the 1 st output card 52 to the M Zhang Shuchu card 52 to the processing module 101 in the control board card 10 through the pre-monitoring channel between the 1 st output card 52 and the interface connector 107.

Wherein r is more than or equal to 2 and less than or equal to N-1, k is more than or equal to 2 and less than or equal to M-1, and r and k are integers.

Alternatively, the data set pins of the 1 st output card 52 may also be electrically connected to the data set pins of the 1 st input card 51 to form a pre-monitoring channel with fewer interfaces on the interface connector 107 that serve as pre-monitoring functions. Based on this, the 1 st output card 52 can send a part of the pre-monitor signals of the 1 st output card 52 to the M Zhang Shuchu th card 52 to the processing module 101 in the control board card 10 through the pre-monitor channel between it and the interface connector 107, and transmit another part of the pre-monitor signals of the 1 st output card 52 to the M Zhang Shuchu th card 52 to the 1 st input card 51 through the pre-monitor channel between it and the 1 st input card 51. The 1 st input card 51 may also send the above-mentioned other part of the pre-monitor signal to the processing module 101 in the control board card 10 through the pre-monitor channel between it and the interface connector 107.

It will be appreciated that the pre-monitor signal and the echo signal of the input card 51 may be the result of the processing of the video signal from the video source device by the input card 51. The video signal processing mode adopted by the input card 51 when obtaining the pre-monitor signal is different from the video signal processing mode adopted by the input card when obtaining the back display signal.

The pre-monitor signal of the output card 52 may be a result of the processing of the video encoded signal from the input card 51 by the output card 52. The video encoding signal may be obtained by encoding a video signal from a video source device by the input card 51. The format of the video encoded signal may be, for example, a SerDes format.

The above can be seen that, by integrating the pre-monitoring interface on the control board card of the video processing device, the pre-monitoring signal of the video processing device is transmitted through the pre-monitoring interface, so that the cost of implementing the pre-monitoring function of the video processing device and the complexity of the internal structure of the video processing device are reduced compared with the case that the dedicated pre-monitoring board card is adopted to implement the pre-monitoring function. In addition, the pre-monitoring function can be realized through the pre-monitoring interface on the control panel card, so that the number of effective interfaces of the output card for transmitting video signals to the display screen is not wasted when the video processing equipment realizes the pre-monitoring function.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference may be made to related descriptions of other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. The control board card is characterized by comprising a processing module, a control instruction receiving and transmitting module, a pre-monitoring interface and a synchronous signal receiving and transmitting interface;

the control instruction receiving and transmitting module is connected with the processing module through a conversion module;

the pre-monitoring interface is connected with the processing module through a first interface chip;

the synchronous signal receiving and transmitting interface is connected with the processing module through a synchronous circuit module;

the processing module is electrically connected with the interface connector.

2. The control board card of claim 1, wherein the processing module comprises a processing chip and a control chip; the processing chip is connected with the control chip, the processing chip and the control chip are respectively and electrically connected with the interface connector, the control instruction receiving and transmitting module is connected with the control chip through the conversion module, the pre-monitoring interface is connected with the processing chip through the first interface chip, and the synchronous signal receiving and transmitting interface is connected with the processing chip through the synchronous circuit module.

3. The control board card of claim 1, wherein the processing module is an integrated chip that integrates a control unit and a processing unit.

4. The control board card of claim 1, further comprising a return interface and a second interface chip;

in the case that the processing module comprises a processing chip and a control chip, the back display interface is connected with the processing chip through the second interface chip; or,

and in the case that the processing module is an integrated chip, the back display interface is connected with the integrated chip through the second interface chip.

5. The control board card of claim 1, wherein the synchronization signal transceiver interface is a genlock interface; the synchronous signal receiving and transmitting interface is connected with the processing module through the synchronous circuit module and comprises:

the genlock interface is connected with the processing module through the synchronous circuit module.

6. The control board card of claim 1, wherein the control instruction transceiver module comprises a network port and a USB interface, and the conversion module comprises a third interface chip and a fourth interface chip; the control instruction receiving and transmitting module is connected with the processing module through a conversion module and comprises:

the network port is connected with the processing module through a third interface chip;

the USB interface is connected with the processing module through a fourth interface chip.

7. The control board card of claim 6, wherein the third interface chip is a PHY chip and the fourth interface chip is a USB conversion chip.

8. The control board card of any of claims 1-7, wherein the processing module is electrically connected to an interface connector, comprising:

the data group pins of the interface connector are electrically connected with the data group pins of the processing module to form a data transmission channel;

and the communication group pins of the interface connector are electrically connected with the communication group pins of the processing module to form a communication transmission channel.

9. The video processing device is characterized by comprising an input module, an output module and a main control module; the input module and the output module are respectively connected with the main control module; the master control module comprises a control instruction receiving and transmitting module, a processing module, a pre-monitoring interface and a synchronous signal receiving and transmitting interface;

the control instruction receiving and transmitting module is connected with the processing module through a conversion module;

the pre-monitoring interface is connected with the processing module through an interface chip;

the synchronous signal receiving and transmitting interface is connected with the processing module through a synchronous circuit module;

the processing module is electrically connected with the interface connector.

10. A card-inserted video processing apparatus comprising an input card, an output card, and a control board card according to any one of claims 1 to 8;

the input card and the output card are respectively and directly electrically connected with the control board card; or,

the input card, the output card and the control board card are connected through the exchange chip.