CN218499184U

CN218499184U - Control board card and video processing equipment

Info

Publication number: CN218499184U
Application number: CN202222434266.XU
Authority: CN
Inventors: 赵重阳; 苗少峰; 周晶晶
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-02-17
Anticipated expiration: 2032-09-14

Abstract

The application is suitable for 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 sending module, a processing module, a pre-monitoring interface and a synchronous signal receiving and sending interface; the control instruction transceiving 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 board card provided by the application is integrated with the pre-monitoring interface, when the video processing equipment adopts the control 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 an internal structure can be reduced.

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 board card and video processing equipment.

Background

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

In order to implement pre-monitoring of video signals outputted and/or inputted by video processing equipment, a dedicated pre-monitoring board card is usually required to be arranged in the video processing equipment, and the pre-monitoring function is implemented through the dedicated pre-monitoring board card. However, the price of the dedicated pre-monitor board is expensive, so that this approach not only increases the cost of the video processing apparatus, but also complicates the structure of the video processing apparatus.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a control board card and video processing equipment, which can reduce the cost of realizing the pre-monitoring function of the video processing equipment 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 transceiving 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, which includes 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 main control module comprises a control instruction transceiving module, a processing module, a pre-monitoring interface and a synchronous signal transceiving interface;

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

the processing module is electrically connected with the interface connector.

In a third aspect, an embodiment of the present application provides a card-inserted video processing device, including an input card, an output card, and the control board card of 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 a switching 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 panel 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 panel card to realize the pre-monitoring function, compared with the situation that the pre-monitoring function is realized by adopting a special pre-monitoring panel card, the cost for realizing the pre-monitoring function of the video processing equipment and the complexity of the internal structure of the video processing equipment are reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

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

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

Detailed Description

It is to be understood that the terminology used in the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application.

In many application scenarios, the display screen is used as a platform for displaying information in real time, and the requirement on the correctness of the displayed content is quite high. In order to ensure the correctness of the video displayed on the display screen, for example, in order to display the video on the display screen, it is generally desirable to be able to pre-monitor the video signal output and/or input by the video processing device (e.g., a video switcher, a video multi-screen processor, a video splicer, etc.) before or at the same time when the video processing device outputs the video signal to the display screen, that is, to be able to display the video signal output and/or input by the video processing device in a preview form on a terminal device connected to the video processing device, so that an operator can preview the video to be displayed on the display screen on the terminal device in advance.

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

one way is to set a dedicated pre-monitor board card in the video processing device, and implement the pre-monitor function through the dedicated pre-monitor board card. However, the price of the dedicated pre-monitor board is expensive, so that this solution not only increases the cost of the video processing apparatus, but also complicates the structure of the video processing apparatus.

Another way is to configure the video interfaces of some output cards in the video processing device as pre-monitoring interfaces through software, so as to implement the pre-monitoring function, which reduces the number of effective interfaces of the output cards for transmitting video signals to the display screen.

Therefore, when the video processing device adopts the control board to realize the pre-monitoring function, compared with the situation that a special pre-monitoring board is adopted to realize the pre-monitoring function, the cost for realizing the pre-monitoring function of the video processing device and the complexity of the internal structure of the video processing device are reduced. In addition, the pre-monitoring function can be realized through the pre-monitoring interface on the control board card, so that the number of effective interfaces of the output card for transmitting the video signals to the display screen is not wasted when the pre-monitoring function is realized by the video processing equipment.

Fig. 1 is a schematic structural diagram of a control board provided in an embodiment of the present application. As shown in fig. 1, the control board card 10 may include a processing module 101, a control command transceiver module 102, a pre-monitoring 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 to the processing module 101 via a first interface chip 105.

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

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

In a specific application, the control instruction transceiver module 102 may be used to connect an upper computer. The upper computer can be a mobile phone, a tablet computer, a notebook computer or a desktop computer and other terminal equipment.

Based on this, the control instruction transceiver module 102 may receive a control instruction issued by the upper 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, which is used to instruct the processing module 101 to transmit a 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, or output card, or input module, or output module pre-monitoring signal that 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 (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 the third interface chip 1041. The USB interface 1022 is connected to the processing module 101 through the fourth interface chip 1042.

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

Illustratively, the fourth interface chip 1042 may be a USB conversion chip.

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

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

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

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

More specifically, the video interface may be, for example, a High Definition Multimedia Interface (HDMI), and the first interface chip 105 may be, for example, an HDMI interface IC. Based on this, the format-converted target pre-monitoring signal may be in the HDMI format.

Illustratively, the synchronization signal transceiving interface 104 may be a genlock interface (genlock).

Based on this, the synchronization signal transceiving 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 amplifying circuit 1061 is connected to the output end of the synchronization signal transceiving interface 104, a first output end of the signal amplifying circuit 1061 is connected to the input end of the synchronization signal transceiving interface 104, a second output end of the signal amplifying circuit 1061 is connected to the 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 the synchronization signal from the upper computer or the cascaded upper-level video processing device 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 transmit the other path of the amplified synchronization signal back to the synchronization signal transceiving interface 104. The synchronization signal transceiving interface 104 may transmit the amplified synchronization signal to the next-stage video processing device in cascade. The signal processing circuit 1062 may perform analysis or separation processing on the amplified synchronization signal to obtain multiple synchronization signals for synchronizing data in different formats, and transmit the multiple synchronization signals to the processing module 101.

Illustratively, the signal amplification circuit 1061 may include a signal amplification chip and peripheral circuits of the signal amplification chip. The signal processing circuit 1062 may include a signal processing chip and a peripheral circuit of the signal processing chip.

It is understood that the processing module 101 is electrically connected to the interface connector 107, and 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 channel may include, for example, a synchronization signal channel and a network communication channel.

Illustratively, the interface connector 107 may be a high-profile plug-in or other connection device.

It is understood that the control board 10 may further include a playback interface 108 and a second interface chip 109. The echo interface 108 is connected to the processing module via a second interface chip 109.

In particular applications, the playback interface 108 may be used to connect playback devices. The playback device may be 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 can also transmit the echo signal from any input card or input module to the echo interface 108 through the second interface chip 109. The playback interface 108 can 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, for example, a video playing APP.

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 playback interface 108 and the pre-monitoring interface 103 have the same object form and connection relationship, but the data content to be transmitted is different. For example, when the playback interface 108 and the pre-monitor interface 103 are both HDMI interfaces, both 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, wherein the control chip 1011 is connected to the processing chip 1012.

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

Based on this, the control command 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 coupled to the processing chip 1012 through the first interface chip 105.

The synchronization signal transceiving interface 104 may be connected with 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 data transmission channels, 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 can 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 portal 1021 in the control command transceiver module 102 may be connected to the ic 1013 through the third interface chip 1041 in the conversion module 104, and the USB interface in the control command transceiver module 102 may be connected to the ic 1013 through the fourth interface chip 1042.

The echo interface 108 may be connected to the integrated chip 1013 through a second interface chip 109.

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

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

Integrated chip 1013 may be electrically connected to interface connector 107. Specifically, the data group pin of the integrated chip 1013 may be electrically connected to the data group pin of the interface connector 107 to form the data transmission channel, and the communication group pin of the integrated chip 1013 may be electrically connected to the communication group pin 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 the control unit and the processing unit may be integrated inside the integrated chip. The control unit can be understood as an on-chip module which realizes the same control function as the ARM or the MCU, and the processing unit can be understood as an on-chip module which realizes the same processing function as the FPGA or the video processing IC.

In particular, integrated chip 1013 may include a Reduced Gigabit Media Independent Interface (RGMII) pin and a USB pin. The RGMII pin and the USB pin are both corresponding pins of the control unit inside the ic 1013.

Based on this, the portal 1021 can be electrically connected to the RGMII pin of the ic 1013 through the third interface chip 1041, so as to realize data interaction between the portal 1021 and the control unit inside the ic 1013. The USB interface 1022 may be electrically connected to the 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 the control unit inside the integrated chip 1013.

Specifically, integrated chip 1013 may further include a transistor-transistor logic (TTL) pin and a Low Voltage Differential Signaling (LVDS) pin. The TTL pin and the LVDS pin are both pins corresponding to a processing unit inside the integrated chip 1013.

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

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

Fig. 4 is a schematic structural diagram of a video processing apparatus according to an embodiment of the present disclosure. 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. Wherein, the input module 41 and the output module 42 are both 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-monitoring interface 103, and a synchronization signal transceiver interface 104.

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

It should be noted that each module included in the main control module 43 is completely the same as each module included in the control board 10 in the embodiment corresponding to fig. 1 to fig. 3, and for the connection relationship between each module in the main control module 43 or the function of each module, reference may be made to the description of the control board 10 in the embodiment corresponding to fig. 1 to fig. 3, which is not described again 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 echo channel may be high-speed differential signal channels.

Based on this, the input module 41 can respectively 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 the input module and the interface connector 107.

The output module 42 may send the pre-monitoring signal of the output module 42 to the processing module 101 through a pre-monitoring channel between the output module 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 obtained by the input module 41 processing a video signal from a video source device. It is understood that the input module 41 obtains the pre-monitor signal in a different video signal processing manner than the video signal processing manner used to obtain the echo signal.

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

It can be seen from the above 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 compared with the case of using a dedicated pre-monitoring board card to implement the pre-monitoring function, the cost of implementing the pre-monitoring function by the video processing device and the complexity of the internal structure of the video processing device are reduced. 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 the video signals to the display screen is not wasted when the pre-monitoring function is realized by the video processing equipment.

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

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

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

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

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

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

It can be understood that, since there are generally few interfaces on the interface connector 107 for the pre-monitor function or the echo function, it may not be able to support the establishment of the pre-monitor channel and the echo channel with all the input cards 51 and the pre-monitor channel with all the output cards 52, respectively, so as to be able to transmit the pre-monitor signal and the echo signal of all the input cards 51 and the pre-monitor signal of all the output cards 52 to the processing module 101 in the control board 10, optionally, the 1 st input card (i.e. input card 1) 51 may be electrically connected to the interface connector 107 in the control board 10, and the ith input card 51 of the 2 nd input card (i.e. input card 2) 51 to the nth input card (i.e. input card N) 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 of the control board 10, and the j (th) output card 52 of the 2 nd to M (th) output cards 52 may be electrically connected to the j-1 (th) output card 52. Wherein i is more than or equal to 2 and less than or equal to N, and i is an integer. J is more than or equal to 2 and less than or equal to M, and j is an integer.

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

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

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

The mth output card 52 may transmit the pre-monitoring signal of the mth output card 52 to the M-1 output card 52 through the pre-monitoring channel, the kth output card 52 may transmit the pre-monitoring signals of the kth output card 52 to the mth output card 52 to the kth output card 52 through the pre-monitoring channel, and the 1 st output card 52 may send the pre-monitoring signals of the 1 st output card 52 to the processing module 101 in the controller board 10 through the pre-monitoring channel between the 1 st output card 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.

Optionally, in the case that there are fewer interfaces used as a pre-monitoring function on the interface connector 107, the data set pins of the 1 st output card 52 may be electrically connected with the data set pins of the 1 st input card 51 to form a pre-monitoring channel. Based on this, the 1 st output card 52 may send a part of the pre-monitoring signals of the 1 st output card 52 to the M th output card 52 to the processing module 101 in the controller board 10 through the pre-monitoring channel between the 1 st output card 52 and the interface connector 107, and transmit another part of the pre-monitoring signals of the 1 st output card 52 to the M th output card 52 to the 1 st input card 51 through the pre-monitoring channel between the 1 st input card 51 and the pre-monitoring channel. The 1 st input card 51 may also send the other part of the pre-monitoring signal to the processing module 101 in the control board 10 through the pre-monitoring channel between the 1 st input card and the interface connector 107.

It will be appreciated that the pre-supervisory signal and the echo signal of the input card 51 may be processed by the input card 51 from the video source device. The video signal processing method adopted when the input card 51 obtains the pre-monitor signal is different from the video signal processing method adopted when the echo signal is obtained.

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

It can be seen from the above that, the pre-monitoring interface is integrated on the control board card of the video processing device, and the pre-monitoring signal of the video processing device is transmitted through the pre-monitoring interface, so that compared with the method that the pre-monitoring function is realized by using a dedicated pre-monitoring board card, the cost of realizing the pre-monitoring function of the video processing device and the complexity of the internal structure of the video processing device are reduced. In addition, the pre-monitoring function can be realized through the pre-monitoring interface on the control board card, so that the number of effective interfaces of the output card for transmitting the video signals to the display screen is not wasted when the pre-monitoring function is realized by the video processing equipment.

In the above embodiments, the description of each embodiment has its own emphasis, and parts that are not described or illustrated in a certain embodiment may refer to the description of other embodiments.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

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

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 electrically connected with the interface connector, the control instruction transceiving 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 transceiving 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, and the integrated chip integrates the control unit and the processing unit.

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

under the condition that the processing module comprises a processing chip and a control chip, the echoing interface is connected with the processing chip through the second interface chip; or,

and under the condition that the processing module is an integrated chip, the echoing 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 command transceiver module includes a network port and a USB interface, and the conversion module includes a third interface chip and a fourth interface chip; the control instruction transceiving 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;

and 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 the interface connector and comprises:

a data group pin of the interface connector is electrically connected with a data group pin 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 equipment 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 main control module comprises a control instruction transceiving module, a processing module, a pre-monitoring interface and a synchronous signal transceiving interface;

the processing module is electrically connected with the interface connector.

10. A card-inserted video processing device comprising an input card, an output card, and a control board as claimed in 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,