Video monitoring device and system

Abstract

The embodiment of the utility model discloses a video monitoring device and system, at least one path of video stream and / or audio stream is obtained through a network via a first communication interface, a control unit obtains configuration parameters, and a processing unit is connected with the first communication interface, the control unit and a first video transmission interface. And processing the at least one path of video stream and / or audio stream according to the configuration parameters, and outputting the processed video stream and / or audio stream to a first video transmission interface. Therefore, monitoring analysis and display of multiple paths of videos and audios can be realized.

Description

Technical Field

[0001] The utility model relates to the field of electronic equipment, in particular to a video monitoring device and a system. Background Art

[0002] In the traditional broadcasting and television industry, video transmission mostly uses 3G-SDI (third generation digital component serial interface) coaxial cable to transmit standard definition video signals. Standard definition video format refers to a video format with a physical resolution below 720p. 720p is a high-definition video format. The effective display format of 720p is 1280×720, where "720" refers to the number of vertical pixels (vertical pixels) of the video, and "1280" refers to the number of horizontal pixels (horizontal pixels). This video format was widely used in the early broadcasting and television industry. 3G-SDI is a digital interface standard specifically used to transmit high-definition video signals. Its transmission rate is 2.97Gbps and supports full high-definition video formats such as 1080p 60Hz. Due to the outdated technology of this solution and the low resolution of the transmitted video, it is difficult to display multiple videos on the same display screen, and it is even more difficult to monitor its video and audio streams. Utility Model Content

[0003] In view of this, an embodiment of the present utility model provides a video monitoring device and system, thereby enabling monitoring, analysis and display of multiple channels of video and audio.

[0004] In a first aspect, an embodiment of the present utility model provides a video monitoring device, the device comprising:

[0005] At least one first communication interface, configured to obtain at least one video stream and / or audio stream through a network;

[0006] A control unit configured to obtain configuration parameters;

[0007] A first video transmission interface;

[0008] The processing unit is connected to the first communication interface, the control unit and the first video transmission interface, and is configured to process the at least one video stream and / or audio stream according to the configuration parameters and output them to the first video transmission interface.

[0009] In some embodiments, the processing unit is a field programmable gate array.

[0010] In some embodiments, the first communication interface is a 10 Gigabit Ethernet interface configured to transmit a video stream and / or an audio stream to the processing unit.

[0011] In some embodiments, each of the first communication interfaces is configured to transmit one or more video streams and / or audio streams.

[0012] In some embodiments, the device further comprises:

[0013] a general purpose input / output transmission line connected between the control unit and the processing unit; and / or

[0014] A serial peripheral transmission line connected between the control unit and the processing unit;

[0015] Wherein, the universal input and output transmission line and the serial peripheral transmission line are configured to transmit signals.

[0016] In some embodiments, the device further comprises:

[0017] a universal serial bus interface, connected to the control unit; and / or

[0018] A second communication interface is connected to the control unit.

[0019] In some embodiments, the device further comprises:

[0020] The second video transmission interface is connected between the control unit and the processing unit.

[0021] In some embodiments, the control unit is an RISC machine architecture.

[0022] In some embodiments, the first communication interface includes an input interface and an output interface.

[0023] In a second aspect, an embodiment of the utility model provides a video monitoring system, the system comprising:

[0024] The video monitoring device as described in the first aspect;

[0025] A display is connected to the video monitoring device.

[0026] The technical solution of the embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0028] Figure 1 is a schematic diagram of a video monitoring system according to an embodiment of the utility model;

[0029] Figure 2 is a circuit diagram of a video monitoring device according to an embodiment of the utility model;

[0030] Figure 3 is a circuit diagram of a video monitoring device according to another embodiment of the utility model;

[0031] Figure 4 It is a circuit diagram of a video monitoring device according to another embodiment of the utility model;

[0032] Figure 5 It is a schematic diagram of the interface of the display of the video monitoring system of the embodiment of the utility model;

[0033] Figure 6 It is a schematic diagram of the interface of the video monitoring device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0034] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0035] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0036] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0037] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] The utility model is a transmission protocol and 10 Gigabit Ethernet transmission link using standard SMPTE ST.2110, which is used for video surveillance equipment with ultra-high-definition 4K resolution, long-distance network transmission and strong anti-interference ability. 4K is a standard for ultra-high-definition resolution, and its resolution is usually 3840×2160 or 4096×2160, which can provide higher clarity and more delicate picture quality than traditional 1080p resolution. SMPTE ST 2110 is a set of advanced standards for professional media applications, which defines methods for transmitting uncompressed audio, video and auxiliary data streams over IP networks, allowing various physical streams to be independently and high-quality transmitted on the network while maintaining synchronization between them, and also simplifying the complexity of media transmission. 10 Gigabit Ethernet uses single-mode optical fiber or multi-mode optical fiber for transmission, supports longer transmission distances, and has the same frame format as Ethernet with lower speeds, maintaining good compatibility. It also includes SOC (System on a Chip) control module, FPGA (Field Programmable Gate Array) video and audio processing card, HDMI (High Definition Multimedia Interface) input and output module, and 10 Gigabit Ethernet module. The SOC control module is a highly integrated chip design that integrates the main functions of the system, such as microprocessor, memory, input / output ports and other components into a single chip to achieve the functions of the entire system. It also has the advantages of small size, high integration, and low power consumption. The programmable gate array video and audio processing card is a highly customizable hardware device that integrates powerful field programmable gate array technology to support multi-channel video encoding, decoding, conversion and transmission, as well as audio acquisition, processing and encoding and decoding tasks. High Definition Multimedia Interface (HDMI) is a fully digital video and sound transmission interface with audio and video transmission capabilities. It can transmit uncompressed audio and video signals at the same time without digital / analog or analog / digital conversion before signal transmission, ensuring the highest quality audio and video signal transmission. It has the advantages of small size, high transmission rate, wide transmission bandwidth, and good compatibility. 10 Gigabit Ethernet is a high-speed network technology. It significantly surpasses Gigabit Ethernet with a transmission rate of 10Gbit per second, while maintaining compatibility with low-speed Ethernet. It adopts full-duplex working mode without channel contention, and is suitable for various network structures through 64B / 66B line coding. With its high-performance network interconnection capabilities, it supports diversified business needs including remote multimedia teaching and digital libraries.

[0039] Figure 1 Schematic diagram of the video monitoring system of the present utility model embodiment. Figure 1As shown, the video monitoring system includes a display 1 and a video monitoring device 2. The display is used to receive the video stream output by the video monitoring device and display it on the screen, including a liquid crystal display (LCD, Liquid Crystal Display), a cathode ray tube display (CRT, Cathode Ray Tube), an organic light-emitting diode (OLED, Organic Light-Emitting Diode) display and a 4K display. The video monitoring device 2 receives multiple video streams and / or audio streams transmitted from the outside, performs data analysis and data processing, and transmits the obtained results to the display 1 for display, thereby realizing the access, analysis, monitoring and display of multiple video streams and / or audio streams.

[0040] The embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized.

[0041] Figure 2 : is a circuit diagram of a video monitoring device according to an embodiment of the utility model, such as Figure 2 As shown, the video monitoring device includes a control unit 21, a first communication interface 22, a first video transmission interface 23, and a processing unit 24. The processing unit 24 is connected to the control unit 21, the first communication interface 22, and the first video transmission interface 23, and is configured to process the at least one video stream and / or audio stream according to the configuration parameters and output it to the first video transmission interface.

[0042] The control unit 21 is configured to obtain configuration parameters and implement parameter control of the processing unit 24. The configuration parameters include clock frequency, output bit rate, resolution, frame rate, number of channels, scaling ratio, etc. The control unit can be a 4K ARM SOC chip, and the embodiment of the utility model does not limit this. Taking the 4K ARM SOC as an example, by configuring the processing unit 24, the processing unit can flexibly adapt to different audio and video processing requirements, and optimize the performance of the system by adjusting the clock frequency, resource allocation, encoding / decoding standards, resolution, frame rate and other parameters, ensuring that the processing unit 24 provides high performance while maintaining low power consumption, extending the service life of the system, and improving the flexibility and scalability of the system.

[0043] The first communication interface 22 is configured to obtain at least one video stream and / or audio stream through the network. The first communication interface 22 can be implemented through a 10 Gigabit Ethernet interface, and the embodiment of the utility model does not limit this. The number of the first communication interface 22 can be one or more, and each first communication interface can transmit one or more video streams and / or audio streams, wherein one 10 Gigabit Ethernet can transmit one ultra-high-definition or up to four high-definition video streams and / or audio streams.

[0044] The first video transmission interface 23 is configured to receive the video stream and / or audio stream transmitted by the processing unit 24 and transmit it to the display for display, which can be specifically implemented by an HDMI input and output module, and the embodiment of the utility model does not limit this.

[0045] The processing unit 24 receives one or more video streams or audio streams from one or more first communication interfaces 22, processes the video streams and audio streams, and transmits the processed results to the display through the first video transmission interface 23. The control unit 21 is used to transmit parameter configuration information to the processing unit 24, that is, to control the processing unit 24.

[0046] More specifically, the processing unit 24 processes the video according to a predetermined processing method. The predetermined processing method includes interlaced processing, still frame monitoring, black screen monitoring, video overlay and scaler scaling, and the embodiment of the utility model does not limit this. Among them, interlaced processing refers to performing specific operations on each line or every few lines according to certain rules or conditions in data or image processing, still frame monitoring refers to detecting whether there are multiple consecutive frames in the video or image stream that are completely or almost the same still frames, black screen monitoring refers to detecting whether the video or image signal is completely black or close to a black screen state to detect whether the video signal is normal, avoiding the black screen phenomenon caused by equipment failure or signal loss, video overlay refers to adding another one or more layers of video, picture or text information to the original video, so that they are played or displayed at the same time to achieve the simultaneous output of multiple video information, enriching the visual effect, and scale scaling refers to the function of converting the input image from one resolution to another resolution output. Specifically, the processing according to the predetermined processing method can be implemented by a pre-set program or by other methods, and the embodiment of the utility model does not limit this. After the predetermined processing is performed, it is output to the external display through the first video transmission interface 23; the control unit 21 will also analyze the audio stream in the 10 Gigabit Ethernet and superimpose the analysis results on the video. The results of the analysis are specifically abnormal information of the video stream, such as signal interruption, volume exceeding the threshold, still frame phenomenon, etc. At this time, the video monitoring equipment is required to give an alarm to prompt the abnormal situation so that the relevant staff can deal with it in time. Specifically, the alarm prompt is given by directly displaying the results and settings adjusted by the user on the screen (OSD, On-Screen Display). Generally speaking, a semi-transparent display is adopted to reduce the impact on the viewing of the video. Specifically, in one embodiment, a red alarm can be displayed in the middle of the video. The red words are used to describe the abnormal state that has occurred. For example, if a signal terminal fails, "Signal interruption!" can be displayed on the screen (see the attached for details). Figure 5 In another embodiment, the warning mark can also be displayed on the video, and the embodiment of the utility model does not limit this. In addition, the control unit 21 is also used to display according to the volume of the audio stream. By including the above-mentioned device, the entire device finally realizes the access and monitoring analysis display of the video stream and / or audio stream.

[0047] The embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized.

[0048] Figure 3 FIG. 1 is a circuit diagram of a video monitoring device according to another embodiment of the present utility model. Figure 3 As shown, the video monitoring device includes a control unit 21, a first communication interface 22, a first video transmission interface 23, a processing unit 24, a second video transmission interface 25, a universal input and output transmission line 26, a serial peripheral transmission line 27, a second communication interface 28, and a universal serial bus interface 29.

[0049] The control unit 21, the first communication interface 22, the first video transmission interface 23, the processing unit 24 and Figure 2 For details, see Figure 2 The description is not repeated here.

[0050] The second video transmission interface 25 is used to receive the 4K picture of the control unit 21 and transmit it to the processing unit 24. The second video transmission interface 25 is connected between the control unit 21 and the processing unit 24. It can be implemented through an HDMI interface, and the embodiment of the utility model does not limit this.

[0051] The general purpose input / output (GPIO) transmission line 26 is configured to transmit control signals. The GPIO pin connected between the control unit 21 and the processing unit 24 can be used as a general purpose input (GPI) to receive external signals, or as a general purpose output (GPO) to send signals to external devices to achieve interaction with the outside world. In addition, GPIO also has multiple working modes, such as push-pull output, open-drain output, analog input and output, etc.

[0052] The serial peripheral interface (SPI) transmission line 27 is configured to transmit communication signals and is connected between the control unit 21 and the processing unit 24. The SPI is a high-speed, full-duplex, synchronous communication bus that can send and receive data at the same time. It is usually used for communication between a microcontroller and various external devices, such as sensors, memories, display devices, etc., and has the advantages of fast transmission rate and simple protocol.

[0053] The universal second communication interface 28 is connected to the control unit 21. Specifically, in the embodiment of the utility model, the USB (Universal Serial Bus) 2.0 interface significantly improves the data transmission speed, and also achieves low power consumption by improving power management technology, and provides various types of interfaces and transmission modes to meet the needs of different devices and applications.

[0054] The USB interface 29 is connected to the control unit 21. The USB interface 29 is specifically a wireless local area network (WLAN) interface. The data of the WLAN is transmitted through electromagnetic waves, and data can be received and sent without the need for cable media.

[0055] It should be noted that the device may include only the universal second communication interface 28, or only the universal serial bus interface 29, or both interfaces, and the embodiment of the utility model does not limit this.

[0056] The embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized.

[0057] Figure 4 FIG. 1 is a circuit diagram of a video monitoring device according to another embodiment of the present utility model. Figure 4 As shown, the circuit diagram includes a control unit 21, a first communication interface 22, a first video transmission interface 23, a processing unit 24, a second video transmission interface 25, a universal input and output transmission line 26, a serial peripheral transmission line 27, a second communication interface 28, and a universal serial bus interface 29. Figure 3 The embodiments are the same, and the functions of each module will not be described in detail here.

[0058] The first communication interface 22 specifically includes four 10 Gigabit Ethernet interfaces, each of which can transmit up to four high-definition video streams and / or audio streams, or one ultra-high-definition video stream and / or audio stream. In an embodiment of the utility model, the 10 Gigabit Ethernet interface is specifically an SFP (Small Form-factor Pluggable) interface, which is a miniaturized, pluggable optical module widely used in telecommunications and data communications. It is convenient to replace the module during the operation of the equipment, greatly improving the maintainability and reliability of the network equipment. Among them, the first video transmission interface 23 includes an HDMI input interface and an HDMI output interface. The control unit 21 communicates with external devices through the second communication interface 28 and / or the universal serial bus interface 29.

[0059] The embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized.

[0060] The schematic diagram of the interface of the display of the video monitoring system is as follows Figure 5 As shown, picture A, picture B, picture C and picture D are simultaneously connected through at least one 10 Gigabit Ethernet. The bar graphs on both sides of each picture are displays of the volume of the video stream, wherein the bar graph on the left side displays the volume value of the left channel of the current video, and the bar graph on the right side displays the volume value of the right channel of the current video. It should be noted that the embodiment of the utility model is not limited to using the volume values ​​of the left and right channels to display the volume of the video, and the volume of the video can also be displayed by a volume bar, or a variable volume value can be used to represent the volume of the video, and the embodiment of the utility model does not limit this.

[0061] Figure 6 Schematic diagram of the interface of the video monitoring device of the embodiment of the utility model. Figure 6 As shown, the interfaces of the video monitoring device include four 10 Gigabit Ethernet interfaces 61 (10G-1, 10G-2, 10G-3, 10G-4), four SDI interfaces (Serial Digital Interface) 62 (SDI-1, SDI-2, SDI-3, SDI-4), a debugging interface 63, a LAN (Local Area Network) interface 64, a USB interface 65, a high-definition multimedia interface 66 and a power button 67. The 10 Gigabit Ethernet interface 61 (i.e. Figure 4The first communication interface 22) The 10 Gigabit Ethernet interface is a high-performance interface in modern network architectures. It provides data transmission speeds of up to 10 Gbps, ensuring high-speed, lossless data flow, and has link aggregation capabilities, which enhances the scalability and reliability of the network. At the same time, it is compatible with previous Ethernet standards, allowing existing equipment to be seamlessly upgraded to a higher-performance network environment. The serial digital interface 62 is an interface specifically used for high-quality digital video signal transmission. By adopting a pure digital signal transmission method, it effectively avoids interference from analog signals and ensures the stability of the video and audio signals input to the video surveillance device. The debug interface 63 is used to monitor and debug equipment. As a key diagnostic tool, it provides technical support personnel, developers, and system administrators with a convenient way to monitor and debug equipment. Through the debug interface, relevant staff can quickly obtain equipment status, diagnose faults, optimize performance, and perform necessary upgrades and maintenance to ensure the stable operation of the video surveillance system. The LAN (Local Area Network) interface 64 (i.e. Figure 4 The function of the second communication interface 28 in the video surveillance device is to connect the video surveillance device to the local area network, realize data communication and resource sharing of the devices, and allow these devices to be connected to each other through the transmission medium (such as network cable) in the local area network to form a network environment in which they can communicate with each other. Figure 4 The serial communication interface 29 in the HDMI port is used to transfer data from one device to another, realizing seamless connection and information sharing between devices. It has the characteristics of plug-and-play, making the connection and disconnection of devices simple and fast, greatly improving the user experience. Figure 4 The first video transmission interface 23 in the video transmission interface 23 can realize full digital audio and video transmission. Specifically, HDMI can send uncompressed audio and video signals to realize full digital transmission to ensure that the audio and video signals do not lose quality during transmission. The high-definition multimedia interface 66 specifically includes an input interface (i.e., HDMI-IN) and an output interface (i.e., HDMI-IN). The power button 67 is used to control the opening and closing of the video surveillance device.

[0062] The embodiment of the utility model obtains at least one video stream and / or audio stream through the network through the first communication interface, the control unit obtains the configuration parameters, the processing unit is connected with the first communication interface, the control unit and the first video transmission interface, and the at least one video stream and / or audio stream is processed according to the configuration parameters and output to the first video transmission interface. In this way, the monitoring, analysis and display of multiple video and audio channels can be realized.

[0063] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A video monitoring device, characterized in that: The device comprises: At least one first communication interface, configured to obtain at least one video stream and / or audio stream through a network; A control unit configured to obtain configuration parameters; A first video transmission interface; The processing unit is connected to the first communication interface, the control unit and the first video transmission interface, and is configured to process the at least one video stream and / or audio stream according to the configuration parameters and output them to the first video transmission interface.

2. The device according to claim 1, characterized in that The processing unit is a field programmable gate array.

3. The device according to claim 1, characterized in that The first communication interface is a 10 Gigabit Ethernet interface, and is configured to transmit a video stream and / or an audio stream to the processing unit.

4. The device according to claim 3, characterized in that Each of the first communication interfaces is configured to transmit one or more video streams and / or audio streams.

5. The device according to claim 1, characterized in that The device also includes: a general purpose input / output transmission line connected between the control unit and the processing unit; and / or A serial peripheral transmission line connected between the control unit and the processing unit; Wherein, the universal input and output transmission lines and the serial peripheral transmission lines are configured to transmit signals.

6. The device according to claim 1, characterized in that The device also includes: a universal serial bus interface, connected to the control unit; and / or A second communication interface is connected to the control unit.

7. The device according to claim 1, characterized in that The device also includes: The second video transmission interface is connected between the control unit and the processing unit.

8. The device according to claim 1, characterized in that The control unit is an advanced reduced instruction set machine architecture.

9. The device according to claim 1, characterized in that The first communication interface includes an input interface and an output interface.

10. A video monitoring system, characterized in that: The system comprises: The video monitoring device according to any one of claims 1 to 9; A display is connected to the video monitoring device.

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