A satellite communication audio and video integrated machine and communication method based on Feiteng

Abstract

The present invention discloses a satellite communication audio and video integrated machine and a communication method based on Feiteng, wherein the integrated machine includes a mainboard module, an image processing module, a coding and decoding module, a display module and an intercom module. The communication method implemented based on the integrated machine includes a downlink communication process from the centralized control center to the integrated machine and the video monitoring system, an uplink communication process from the video monitoring system and the integrated machine to the centralized control center, and a mutual communication process between the integrated machine and the video monitoring system. The information security in the interaction of the present invention is high, and multi-point video intercom can be realized.

Description

Technical Field

[0001] The invention belongs to the field of audio and video communication, and in particular relates to a satellite communication audio and video integrated machine and a communication method based on Feiteng. Background Art

[0002] In order to remotely and comprehensively understand the situation of bases, ships and other places, the existing technology adopts the solution of video monitoring system and video conferencing system based on network communication. Figure 1 As shown in the figure, video surveillance systems are deployed in key places to provide scientific and accurate judgment basis for rapid decision-making and command in management, security and other aspects. In the existing technology, X86 platform computers are generally used to deploy clients to perform functions such as image acquisition and transmission of video surveillance systems; video surveillance systems generally use mature civilian monitoring systems such as Hikvision and Dahua in the market, most of which play the role of video surveillance, can realize intercom between the control center and the centralized control center, and can transmit the video in the monitoring system to the centralized control center. Video conferencing systems are deployed in the control centers of bases, ships and other places to realize two-way video intercom with the centralized control center.

[0003] However, the video surveillance system and the video conferencing system are two systems, and there is a problem that the control center, the video surveillance system and the centralized control center cannot realize multi-point video intercom. In addition, the existing technology uses X86 platform computer systems with vulnerabilities and backdoor threats, and there are information security issues; when using video conferencing systems and monitoring system solutions, there are imperfect functions such as scene switching and voice intercom. For example, only audio and video intercom can be realized between the control center and the centralized control center, and video intercom between the centralized control center and multiple video sources cannot be realized, and it has not been developed and designed for bases and ships.

[0004] Therefore, in order to facilitate command, it is urgent to establish a communication link between the control center, video surveillance system and centralized control center to transmit images, voice, data and other services. Summary of the invention

[0005] One of the purposes of the present invention is to provide a satellite communication audio and video integrated machine based on Feiteng, which has high information security and can realize multi-point video intercom.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A satellite communication audio and video integrated machine based on Feiteng is used to realize three-party video intercom with a video monitoring system and a centralized control center. The satellite communication audio and video integrated machine based on Feiteng includes: a mainboard module, an image processing module, a codec module, a display module and an intercom module, wherein:

[0008] The image processing module is used to decode the video stream from the video surveillance system and send the decoded video stream to the main board module;

[0009] The encoding and decoding module is used to encode the audio and video streams from the centralized control center and send them to the video monitoring system and the main board module, and is also used to decode the audio and video streams from the intercom module or the video monitoring system and send them to the centralized control center;

[0010] The mainboard module is used to send the video stream decoded by the image processing module or the video stream from the control center and encoded by the codec module to the display module for display, and to send the audio stream from the control center and encoded by the codec module or from the video surveillance system to the intercom module for playback, and is also used to send the audio stream from the intercom module to the video surveillance system and the codec module.

[0011] Preferably, the display module includes a display component and a screen control board, the screen control board is connected to the main board module, and the screen control board is used to convert the VGA signal of the main board module into an LVDS signal and display it on the display component.

[0012] Preferably, the Feiteng-based satellite communication audio and video integrated machine also includes a keyboard and mouse module, and the keyboard and mouse module is connected to the mainboard module.

[0013] Preferably, the intercom module includes an audio intercom unit and a local image acquisition unit. The audio intercom unit is used for collecting and playing audio streams, and audio streams are interacted between the audio intercom unit and the mainboard module. The local image acquisition unit is used for collecting video streams, and the local image acquisition unit sends the collected video streams to the codec module.

[0014] Preferably, after decoding the video stream, the image processing module performs one or more of single-channel segmentation, multi-channel splicing, picture-in-picture and character overlay processing on the decoded video stream.

[0015] The satellite communication audio and video integrated machine based on Feiteng provided by the present invention adopts the domestic Kirin operating system and Feiteng CPU to solve the information security problem and realize multi-point video intercom among the integrated machine, video monitoring system and centralized control center.

[0016] A second object of the present invention is to provide a communication method to achieve multi-point video intercom.

[0017] To achieve the above object, the technical solution adopted by the present invention is:

[0018] A communication method, implemented based on the Feiteng-based satellite communication audio and video integrated machine, is used for three-party video intercom between the Feiteng-based satellite communication audio and video integrated machine, a video monitoring system and a centralized control center, the communication method includes a downlink communication process from the centralized control center to the integrated machine and the video monitoring system, an uplink communication process from the video monitoring system and the integrated machine to the centralized control center, and a mutual communication process between the integrated machine and the video monitoring system;

[0019] The downlink communication process from the centralized control center to the integrated machine and the video surveillance system, implemented in the integrated machine, includes:

[0020] The codec module receives the audio and video streams from the centralized control center, encodes the audio and video streams and sends them to the video surveillance system and the mainboard module;

[0021] The mainboard module receives the audio and video streams from the centralized control center and encoded by the codec module, sends the audio stream to the intercom module for playback, and sends the video stream to the display module for display;

[0022] The video surveillance system receives the audio and video streams from the centralized control center and encoded by the codec module, and plays the audio streams.

[0023] Preferably, the uplink communication process between the video surveillance system and the integrated machine to the centralized control center is implemented in the integrated machine and includes:

[0024] The mainboard template converts the audio stream from the intercom module into a network signal and sends it to the codec module;

[0025] The codec module decodes the audio and video streams from the video surveillance system, the network signals from the mainboard module, and the video streams from the intercom module and sends them to the centralized control center.

[0026] Preferably, the mutual communication process between the integrated machine and the video surveillance system is implemented in the integrated machine and includes:

[0027] The image processing module receives the video stream from the video surveillance system for decoding and sends the decoded video stream to the main board module;

[0028] The mainboard module sends the audio stream from the video surveillance system to the intercom module for playback, sends the video stream from the video surveillance system and decoded by the image processing module to the display module for display, and also sends the audio stream from the intercom module to the video surveillance system.

[0029] Preferably, the mainboard module sends the audio stream from the intercom module to the video surveillance system, including:

[0030] Initiate an intercom request to an image acquisition device that is previewing the video screen in the video surveillance system;

[0031] Collect audio streams through the intercom module and compress them;

[0032] The compressed audio stream is sent to the corresponding image acquisition device, and the compressed audio stream is decoded and played by the image acquisition device.

[0033] Preferably, the mainboard module sends the audio stream from the video surveillance system to the intercom module for playing, including:

[0034] Receiving an intercom request initiated by an image acquisition device in a video surveillance system;

[0035] Receive the audio stream sent by the image acquisition device that initiates the intercom request;

[0036] The received audio stream is decoded and sent to the intercom module for playback.

[0037] The communication method provided by the present invention realizes multi-point video intercom among the integrated machine, the video monitoring system and the centralized control center. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a communication block diagram of a video surveillance system in the prior art;

[0039] Figure 2 It is a communication block diagram of the all-in-one machine of the present invention;

[0040] Figure 3 It is a structural schematic diagram of the all-in-one machine of the present invention;

[0041] Figure 4 This is a schematic diagram of the software deployment of the all-in-one machine of the present invention;

[0042] Figure 5 This is a schematic diagram of the working topology of the present invention based on the all-in-one machine;

[0043] Figure 6 It is a flow chart of the downlink communication process from the centralized control center to the integrated machine and the video monitoring system of the present invention;

[0044] Figure 7 It is a flow chart of the uplink communication process from the video surveillance system and the integrated machine to the centralized control center of the present invention;

[0045] Figure 8 The figure is a flow chart of the mutual communication process between the integrated machine and the video monitoring system of the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] In order to overcome the problem that multi-point video intercom cannot be realized between the centralized control center, the control center and the video surveillance system in the prior art, such as Figure 2 As shown, this embodiment provides a satellite communication audio and video integrated machine based on Feiteng (referred to as integrated machine), which is deployed as a control center to realize three-party video intercom with the video surveillance system and the centralized control center.

[0049] like Figure 3 As shown, the satellite communication audio and video integrated machine based on Feiteng in this embodiment includes: a mainboard module, an image processing module, a codec module, a display module and an intercom module.

[0050] The image processing module is used to decode the video stream from the video surveillance system and send the decoded video stream to the main board module.

[0051] The codec module is used to encode the audio and video streams from the centralized control center and send them to the video surveillance system and the main board module, and is also used to decode the audio and video streams from the intercom module or the video surveillance system and send them to the centralized control center.

[0052] The main board module is used to send the video stream decoded by the image processing module or the video stream from the control center and encoded by the codec module to the display module for display, and to send the audio stream from the control center and encoded by the codec module or from the video surveillance system to the intercom module for playback, and also to send the audio stream from the intercom module to the video surveillance system and the codec module.

[0053] This embodiment realizes three-party multi-point video intercom through the mainboard module, image processing module, codec module, display module and intercom module. It is easy to understand that the above are the main modules, and other modules can be added according to actual conditions when implementing the functions, such as keyboard and mouse modules.

[0054] In another embodiment, based on the main modules in the all-in-one machine, the all-in-one machine includes a casing and a mainboard module, an image processing module, a codec module, a display module, a keyboard and mouse module, an intercom module, a domestically produced backplane, a power module, and an external interface arranged in the casing.

[0055] The motherboard module is based on the VPX architecture and is the control core of the entire product. The motherboard module mainly includes the Feiteng CPU and its peripheral circuits, MXM graphics card, PCIe Switch circuit, peripheral interface circuit, BMC circuit, etc. It performs various display and control functions according to the received command control. It should be noted that the motherboard module is an existing structure at the circuit structure level.

[0056] The image processing module is based on the VPX architecture and is responsible for real-time decoding of the H.265 code stream from the video surveillance system connected to the network port of the whole machine, and performs single-channel segmentation, multi-channel splicing, character overlay, picture-in-picture and other processing on the decoded video according to the needs. The processed video data is transmitted to the main board module, and the main board module controls the display module to display it externally. At the same time, the image processing module can also decode the code stream encoded in H.264 format, and then encode the decoded video in H.265, so as to realize the unified conversion of H.264 format video of other devices in the system into H.265 format code stream. The image processing module mainly includes a codec processor and its peripheral circuits, a peripheral interface circuit, a BMC circuit, etc. The image processing module exchanges data with the main board module through the PCIE bus. It should be noted that the image processing module is an existing structure at the circuit structure level.

[0057] The codec module supports network coding of analog audio, analog video, and HDMI audio and video data downlinked from the Satcom base station. The coded data is processed by the mainboard module and sent to the display module to complete the video image display and the intercom module to complete the sound output. At the same time, the codec module supports uploading network audio and video sources to the Satcom base station, and then decodes the video (more than 1 channel) and splices it and outputs it from the configured analog video output interface; at the same time, the audio data is also decoded and output to the analog audio output interface connected to the Satcom base station.

[0058] The display module consists of a display component and a screen control board. The screen control board converts the VGA signal of the mainboard module into an LVDS signal and displays it on the display component.

[0059] The keyboard and mouse module consists of a keyboard and a touchpad. As the input module of the all-in-one machine, it is connected to the main board module through a USB interface. The display module and the keyboard and mouse module provide the operator with an operating environment and a display interface to realize the human-computer interaction function.

[0060] The intercom module consists of two parts: the audio intercom unit and the local image acquisition unit. The audio intercom unit consists of a microphone and a speaker, which can collect and play the intercom audio stream. The audio intercom unit and the mainboard module realize audio stream interaction through the network interface. The local image acquisition unit is implemented by a camera to collect video streams. The local image acquisition unit sends the collected video streams to the codec module, which can realize audio and video intercom communication between the all-in-one machine and the outside world.

[0061] The domestically produced backplane realizes the signal interconnection between the mainboard module, image processing module, display module, intercom module, keyboard and mouse module inside the whole machine, as well as the signal connection of the external interface of the whole machine.

[0062] The power module is responsible for providing the required power to the mainboard module and codec module in the whole machine. The input of the power module is AC 220V voltage, and the output is DC 12V, 5V, 3.3V and other voltages required by the whole machine. The power module mainly includes protection circuit, power secondary filter circuit, PFC module circuit, DC-DC module circuit, detection and control circuit, etc.

[0063] The external interfaces include 2-way analog video input interfaces, 2-way analog audio input interfaces, 2-way analog video output interfaces, 2-way analog audio output interfaces, 1-way HDMI audio and video composite input interface, and 1-way HDMI audio and video composite output interface.

[0064] In another embodiment, a communication method is provided, which is implemented based on the Feiteng-based satellite communication audio and video integrated machine described in any of the aforementioned embodiments, and is used for three-party video intercom between the Feiteng-based satellite communication audio and video integrated machine, the video surveillance system and the centralized control center.

[0065] The communication method of this embodiment includes a downlink communication process from the centralized control center to the integrated machine and the video surveillance system, an uplink communication process from the video surveillance system and the integrated machine to the centralized control center, and a mutual communication process between the integrated machine and the video surveillance system.

[0066] like Figure 4 As shown, the all-in-one machine has software configuration items, which include three software units: codec software, image processing software, and client software. The client software includes a UI interface and is the client software of the monitoring system, which is deployed on the local motherboard module; the image processing module software and the codec module software are both embedded software. The codec software, image processing software, and client software are deployed on the corresponding modules to complete the processing logic of the modules, that is, the operating logic of each software is reflected in the operating logic of the corresponding module.

[0067] To facilitate understanding of the case, the communication method of this embodiment is further described in detail:

[0068] The system client software serves as the system human-computer interaction interface, and the Feiteng motherboard module of the all-in-one machine provides it with a domestic platform for operation. The codec software is deployed on the codec module of the all-in-one machine, and the image processing software is deployed on the image processing module of the all-in-one machine.

[0069] When working, each module and the software running on it work together to complete the two-way (uplink and downlink) audio and video communication of the present invention. The working topology of the present invention in the system is shown as follows: Figure 5 The centralized control center exchanges data with the satellite communication base station 1 through the satellite communication base station 2, the integrated machine obtains data from the centralized control center through the satellite communication base station 1, and the integrated machine and the video surveillance system interact through the network.

[0070] Specifically, Figure 6 As shown, the downlink communication process from the centralized control center to the integrated machine and the video surveillance system in the communication method of this embodiment is implemented in the integrated machine and includes:

[0071] The codec module receives the audio and video streams from the centralized control center, encodes the audio and video streams and sends them to the video surveillance system and the mainboard module;

[0072] The mainboard module receives the audio and video streams from the centralized control center and encoded by the codec module, sends the audio stream to the intercom module for playback, and sends the video stream to the display module for display;

[0073] The video surveillance system receives the audio and video streams from the centralized control center and encoded by the codec module, and plays the audio streams.

[0074] Specific software operation steps for downlink from the centralized control center to the integrated machine and video surveillance system are as follows:

[0075] 1. Run the client software and enter the audio and video communication configuration interface.

[0076] 2. The downlink audio and video streams pass through the satellite communication base station and are connected to the analog audio interface and analog video interface of the all-in-one machine.

[0077] 3. Select and configure the analog video channel and analog audio channel of the input integrated machine. The channel corresponds to the access interface in step 2.

[0078] 4. The audio and video streams are converted into network signals through the codec module and sent to the video surveillance system. The sound is played by the video surveillance point and sent to the Feiteng mainboard module at the same time.

[0079] 5. The analog video and audio sent by the codec module are output through the sound card and graphics card of the Feiteng motherboard module. The client software on the motherboard module displays the analog video on the display module and outputs the analog audio on the intercom module.

[0080] At this point, the output playback of the audio stream and the preview of the video stream downloaded from the centralized control center are completed.

[0081] like Figure 7 As shown, the uplink communication process from the video surveillance system and the integrated machine to the centralized control center in the communication method is implemented in the integrated machine and includes:

[0082] The mainboard template converts the audio stream from the intercom module into a network signal and sends it to the codec module.

[0083] The codec module decodes the audio and video streams from the video surveillance system, the network signals from the mainboard module, and the video streams from the intercom module and sends them to the centralized control center.

[0084] The specific steps for software operation of the uplink from the integrated machine and video surveillance system to the centralized control center are as follows:

[0085] 1. Run the client software and enter the audio and video communication configuration interface.

[0086] 2. The uplink audio and video source is connected to the satellite communication base station through the analog audio output interface and analog video output interface of the all-in-one machine.

[0087] 3. Select and configure the analog video and analog audio channels for the output of the integrated machine. The channels correspond to the access interfaces in step 2.

[0088] 4. Configure the video sources for simultaneous decoding and output: Configure the display mode from the interface, and then drag multiple H.264 / H.265 video sources, supporting up to 9 channels.

[0089] 5. Click to start communication.

[0090] 6. The codec module obtains the network audio and video source of the communication according to the configuration of 3-4. If there are more than one video channel, it decodes and splices them and outputs them from the configured analog video output interface. The audio data is first decoded and output to the configured analog audio output interface. At this point, the audio and video data is uploaded to the satellite communication base station.

[0091] 7. In intercom mode, the mainboard module of this machine can collect audio stream through the intercom module and send it to the codec module. The codec module sends the audio data to the satellite communication base station, which can realize intercom communication between the integrated machine control center.

[0092] The codec module of the all-in-one machine in this embodiment can synthesize analog audio and video of any one or more monitoring point video streams and key intercom point audio in the monitoring system and output them to the satellite communication base station. The intercom module in this embodiment has a local image acquisition unit that can be used to capture intercom images. In this embodiment, the local image acquisition unit is preferably configured to directly send the video stream to the codec module to reduce data transmission. In other embodiments, the local image acquisition unit can also send the video stream to the mainboard module first as needed, and the mainboard module directly forwards it or forwards it to the codec module after processing.

[0093] Further video monitoring displays the intercom interface on the display module. The process is as follows: the image processing module obtains the encoded audio and video data from the video monitoring system, the video data is decoded and displayed on the all-in-one machine through the image processing software, and the audio decoding is output through the sound card of the Feiteng motherboard module.

[0094] The client software can receive the audio and video sources of the video surveillance system and the voice data of the intercom module, realizing two-way communication between the video surveillance system and the all-in-one machine.

[0095] In addition, if Figure 8 As shown, the mutual communication process between the integrated machine and the video surveillance system in the communication method of this embodiment is implemented in the integrated machine and includes:

[0096] The image processing module receives the video stream from the video surveillance system for decoding and sends the decoded video stream to the main board module;

[0097] The mainboard module sends the audio stream from the video surveillance system to the intercom module for playback, sends the video stream from the video surveillance system and decoded by the image processing module to the display module for display, and also sends the audio stream from the intercom module to the video surveillance system.

[0098] Specific to the software operation, the steps for intercom between the integrated machine and the video source in the integrated video system are as follows:

[0099] The client initiates an intercom request:

[0100] 1. Run the client software and select an image acquisition device (such as an object camera) in the video surveillance system to preview the video.

[0101] 2. In the client software interface, select the image acquisition device that is previewing the video screen to initiate an intercom request.

[0102] 3. The client software collects the voice data of the intercom module, that is, the audio stream, and compresses it.

[0103] 4. The client software sends compressed voice data to the remote image acquisition device, and the compressed audio stream is decoded and played by the image acquisition device.

[0104] 5. The image acquisition device receives the voice data and then decodes the intercom voice data according to the encoding type.

[0105] 6. The camera sends the decoded voice data to the voice playback interface of the voice device.

[0106] The voice device initiates an intercom request:

[0107] 1. Trigger the voice device connected to the image acquisition device and initiate an intercom request.

[0108] 2. The client software receives the intercom request initiated by the voice device.

[0109] 3. The client software receives the intercom voice data sent by the voice device.

[0110] 4. The client software decodes the intercom voice data and then outputs it from the all-in-one sound card, i.e. the intercom module.

[0111] The CPU processor used in the mainboard module of this embodiment is the FT-2000 / 4 (industrial grade) chip of Tianjin Feiteng; the operating system is the Kylin operating system of Tianjin Feiteng; and the client software code is completely independently developed.

[0112] In this embodiment, an integrated machine is deployed in the control center, and the integrated machine is connected to the satellite communication base station. The integrated machine is deployed with client software, and the operator can operate the client software to realize the video conferencing system formed by the integrated machine, the centralized control center, and the video source.

[0113] The integrated machine of this embodiment manages the network audio and video source, and outputs it from the configured analog video output interface after decoding and splicing. The audio data is first decoded and output to the configured analog audio output interface, so as to achieve two-way communication between the video source and the centralized control center.

[0114] In the case where the satellite communication system is used to transmit audio and video in bases, ships and other places, the codec module of this embodiment can run the satellite communication dedicated codec technology to realize satellite communication. Under the principle of independent control, with the gradual maturity of Feiteng CPU and domestic GPU chips, more complex graphics and image processing and display can be realized based on Feiteng CPU and domestic GPU chips to meet the application of video conferencing systems.

[0115] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A satellite communication audio and video integrated machine based on Feiteng, used to realize three-party video intercom with the video monitoring system and the centralized control center, characterized in that: The satellite communication audio and video integrated machine based on Feiteng includes: a mainboard module, an image processing module, a codec module, a display module and an intercom module, wherein: The intercom module includes an audio intercom unit and a local image acquisition unit. The audio intercom unit is used to collect and play audio streams. The audio intercom unit interacts with the mainboard module through audio streams. The local image acquisition unit is used to collect video streams. The local image acquisition unit sends the collected video streams to the codec module. The image processing module is used to decode the video stream from the video surveillance system and send the decoded video stream to the main board module; The encoding and decoding module is used to encode the audio and video streams from the centralized control center and send them to the video monitoring system and the main board module, and is also used to decode the audio and video streams from the intercom module or the video monitoring system and send them to the centralized control center; The mainboard module is used to send the video stream decoded by the image processing module or the video stream from the control center and encoded by the codec module to the display module for display, and to send the audio stream from the control center and encoded by the codec module or from the video surveillance system to the intercom module for playback, and is also used to send the audio stream from the intercom module to the video surveillance system and the codec module.

2. The satellite communication audio and video integrated machine based on Feiteng as claimed in claim 1, characterized in that: The display module includes a display component and a screen control board. The screen control board is connected to the main board module. The screen control board is used to convert the VGA signal of the main board module into an LVDS signal and display it on the display component.

3. The satellite communication audio and video integrated machine based on Feiteng as claimed in claim 1, characterized in that: The Feiteng-based satellite communication audio and video integrated machine also includes a keyboard and mouse module, which is connected to the mainboard module.

4. The satellite communication audio and video integrated machine based on Feiteng as claimed in claim 1, characterized in that: After decoding the video stream, the image processing module performs one or more processing of single-channel segmentation, multi-channel splicing, picture-in-picture and character overlay on the decoded video stream.

5. A communication method, based on the Feiteng-based satellite communication audio and video integrated machine according to claim 1, for three-party video intercom between the Feiteng-based satellite communication audio and video integrated machine, a video monitoring system and a centralized control center, characterized in that: The communication method includes a downlink communication process from the centralized control center to the integrated machine and the video surveillance system, an uplink communication process from the video surveillance system and the integrated machine to the centralized control center, and a mutual communication process between the integrated machine and the video surveillance system; The downlink communication process from the centralized control center to the integrated machine and the video surveillance system, implemented in the integrated machine, includes: The codec module receives the audio and video streams from the centralized control center, encodes the audio and video streams and sends them to the video surveillance system and the mainboard module; The mainboard module receives the audio and video streams from the centralized control center and encoded by the codec module, sends the audio stream to the intercom module for playback, and sends the video stream to the display module for display; The video surveillance system receives the audio and video streams encoded by the codec module from the centralized control center and plays the audio streams; The uplink communication process between the video surveillance system and the integrated machine to the centralized control center is implemented in the integrated machine and includes: The mainboard template converts the audio stream from the intercom module into a network signal and sends it to the codec module; The codec module decodes the audio and video streams from the video surveillance system, the network signals from the mainboard module, and the video streams from the intercom module and sends them to the centralized control center; The mutual communication process between the integrated machine and the video surveillance system is implemented in the integrated machine and includes: The image processing module receives the video stream from the video surveillance system for decoding and sends the decoded video stream to the main board module; The mainboard module sends the audio stream from the video surveillance system to the intercom module for playback, sends the video stream from the video surveillance system and decoded by the image processing module to the display module for display, and also sends the audio stream from the intercom module to the video surveillance system.

6. The communication method according to claim 5, characterized in that: The mainboard module sends the audio stream from the intercom module to the video surveillance system, including: Initiate an intercom request to an image acquisition device that is previewing the video screen in the video surveillance system; Collect audio streams through the intercom module and compress them; The compressed audio stream is sent to the corresponding image acquisition device, and the compressed audio stream is decoded and played by the image acquisition device.

7. The communication method according to claim 5, characterized in that: The mainboard module sends the audio stream from the video surveillance system to the intercom module for playback, including: Receiving an intercom request initiated by an image acquisition device in a video surveillance system; Receive the audio stream sent by the image acquisition device that initiates the intercom request; The received audio stream is decoded and sent to the intercom module for playback.

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