WO2020151445A1 - Appareil, dispositif, et système de transmission de données, et appareil et dispositif de réception de données - Google Patents

Appareil, dispositif, et système de transmission de données, et appareil et dispositif de réception de données Download PDF

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Publication number
WO2020151445A1
WO2020151445A1 PCT/CN2019/127859 CN2019127859W WO2020151445A1 WO 2020151445 A1 WO2020151445 A1 WO 2020151445A1 CN 2019127859 W CN2019127859 W CN 2019127859W WO 2020151445 A1 WO2020151445 A1 WO 2020151445A1
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WO
WIPO (PCT)
Prior art keywords
pin
interface
video
audio
pair
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PCT/CN2019/127859
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English (en)
Chinese (zh)
Inventor
刘小成
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2020151445A1 publication Critical patent/WO2020151445A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Definitions

  • This application relates to the field of network technology, for example, to a data transmission device, equipment, system, and data receiving device and equipment.
  • the network card interface can realize the transmission of Ethernet data between different devices, and the device with the network card interface can be connected to the Ethernet by connecting the network cable to the network card interface, so as to realize the transmission and reception of Ethernet data.
  • Commonly used network cables for example, Category 5e network cables have 4 pairs of twisted pairs, that is, 8 cores, respectively corresponding to the eight pins in the network card interface (such as Registered Jack (RJ) 45 network port).
  • the (1, 2, 3, 6) cores in the network cable are used to transmit Ethernet data; when the power over Ethernet (POE) technology is used to supply power to the powered terminal equipment, it will occupy (1, 2, 3, 6) , 2, 3, 6) core or (4, 5, 7, 8) core. If you want to transmit audio and video, Ethernet data, and POE power supply on the same network cable at the same time, the solutions in related technologies will not be able to meet at the same time, and additional cables and interfaces will be required. This will increase the number of cables, more interfaces, and construction wiring Difficulties etc.
  • the embodiment of the application proposes a data transmission device, equipment, system, and data receiving device and equipment, which can realize simultaneous transmission of audio and video, Ethernet data, and POE power supply on a network cable.
  • the embodiment of the application provides a data transmission device, including a first network card interface, a first audio and video to advanced video transport (Advanced Video Transport, AVT) interface chip, and a first network transformer; the first network card interface is provided with The third pin pair and the first pin pair and the second pin pair used to implement Ethernet data transmission; wherein, the first network transformer is connected to the first pin pair and the second pin; The two pins of the third pin pair are respectively connected to the first audio-video to AVT interface chip.
  • AVT Advanced Video Transport
  • the data transmission device further includes a second audio/video to AVT interface chip
  • the first network card interface further includes a fourth pin pair, and two pins of the fourth pin pair are respectively connected The second audio and video conversion AVT interface chip.
  • the first network card interface is an RJ45 interface
  • the first pin pair corresponds to the first pin and the second pin of the RJ45 interface
  • the second pin pair corresponds to the RJ45 interface
  • the third pin pair corresponds to the fourth pin and the fifth pin of the RJ45 interface
  • the fourth pin pair corresponds to the seventh pin of the RJ45 interface
  • the eighth pin corresponds to the eighth pin.
  • the first network card interface is an RJ45 interface
  • the first pin pair corresponds to the first pin and the second pin of the RJ45 interface
  • the second pin pair corresponds to the RJ45 interface
  • the third pin pair corresponds to the seventh pin and the eighth pin of the RJ45 interface
  • the fourth pin pair corresponds to the fourth pin of the RJ45 interface
  • the fifth pin is an RJ45 interface
  • the embodiment of the application also provides a data transmission device, including an audio and video processing chip and the above-mentioned data transmission device;
  • the audio and video processing chip has an audio and video data output interface and an Ethernet data transceiver interface;
  • the audio and video data The output interface is connected to the audio and video data input interface of the first audio and video to AVT interface chip;
  • the Ethernet data transceiver interface is connected to the first pin pair and the second pin pair through the first network transformer.
  • the embodiment of the present application also provides a data receiving device, including a second network card interface, an AVT interface converting audio and video chip, and a second network transformer.
  • the second network card interface is provided with a third pin pair and is used to implement Ethernet.
  • the first pin pair and the second pin pair for data transmission; wherein, the second network transformer is connected to the first pin pair and the second pin pair; the third pin pair is connected to the AVT interface to audio and video chip.
  • the second network card interface is an RJ45 interface
  • the first pin pair corresponds to the first pin and the second pin of the RJ45 interface
  • the second pin pair corresponds to the RJ45 interface
  • the third pin corresponds to the fourth pin and the fifth pin of the RJ45 interface
  • the third pin corresponds to the seventh pin and the first pin of the RJ45 interface Eight pins.
  • the second network card interface further includes a fourth pin pair, the AVT interface to audio and video chip is a dual AVT interface to audio and video chip; the fourth pin pair is connected to the dual AVT interface to audio and video chip.
  • An embodiment of the present application also provides a data receiving device, including the above-mentioned data receiving device.
  • the embodiment of the present application also provides a data transmission system, including the above-mentioned data transmission device and the above-mentioned data receiving device; the first network card interface of the data transmission device and the second network card interface of the data receiving device pass through a network cable connection.
  • the first audio-video-to-AVT interface chip can receive audio-video data sent by an external device, and at the same time convert the audio-video data into AVT video data and transmit it to the third pin pair.
  • the AVT video data is transmitted by the core of the network cable connected to the third pin pair; on the other hand, the Ethernet data and the DC power supply sent by the external device are transmitted through the first pin pair and the second pin pair
  • the first network transformer is then transmitted to the power receiving end, so that a network card interface and a network cable can be used to simultaneously realize audio and video data transmission, Ethernet data transmission, and POE power receiving (or power supply).
  • FIG. 1 is a schematic structural diagram of a data transmission device provided by the first embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a data receiving device provided by a third embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of a data transmission system provided by a fifth embodiment of the present application.
  • the first embodiment of the present application provides a data transmission device 100, including a first network card interface 110, a first audio and video to AVT interface chip 120, and a first network transformer 130; the first network card interface 110 A third pin pair and a first pin pair and a second pin pair for realizing Ethernet data transmission are provided inside; wherein, the first network transformer 130 is connected to the first pin pair and the second pin pair. Pin pair; the two pins of the third pin pair are respectively connected to the first audio-video to AVT interface chip 120.
  • the first network card interface 110 may be an RJ45 interface, for example, an RJ45 interface for data terminal equipment such as an Ethernet network card and a router Ethernet interface.
  • RJ45 interface for example, an RJ45 interface for data terminal equipment such as an Ethernet network card and a router Ethernet interface.
  • mark these 4 pairs of pins as the first pin pair (including the first pin and the second pin), the second pin pair (including the third pin and the sixth pin), and the third pin Pair (including fourth pin and fifth pin), fourth pin pair (including seventh pin and eighth pin).
  • the first pin (TX+) is set to send data +
  • the second pin (TX-) is set to send data -
  • the third pin (RX+) is set to receive data +
  • the sixth pin (RX+) is set to receive data -.
  • the remaining pins 4, 5, 7 and 8 are not used.
  • the first pin pair includes the third pin and the sixth pin
  • the second pin pair includes the first pin and the second pin
  • the third pin pair includes The seventh pin and the eighth pin
  • the fourth pin pair include the fourth pin and the fifth pin
  • the first network transformer 130 is connected to the first pin pair and the second pin pair to implement power supply or reception based on Ethernet.
  • Power over Ethernet refers to In the relevant technology, the Ethernet cable (Category 5 cable, Cat.5) wiring infrastructure is not changed in any way, in the case of some Internet Protocol (Internet Protocol, IP)-based terminals (such as IP telephones) , Wireless LAN access points (Access Point, AP), network cameras, etc.) transmit data signals while also providing DC power supply technology for such devices.
  • IP Internet Protocol
  • AP Wireless LAN access points
  • network cameras etc.
  • the first is to occupy (1, 2, 3, 6) cores (corresponding to pins 1, 2, 3, and 6);
  • One is to occupy (4, 5, 7, 8) cores (corresponding to the 4th, 5th, 7th, and 8th pins), and this embodiment adopts the first implementation scheme.
  • the first audio-video to AVT interface chip 120 can convert audio-video signals into AVT video data, and transmit the AVT video data through the third pin pair.
  • AVT technology has the advantages of all-digital architecture and digital signal transmission.
  • AVT technology uses a new generation of digital video compression algorithm. This algorithm is more effective than the standard Video Compress-2 Low Delay (VC-2LD) compression algorithm.
  • VC-2LD Video Compress-2 Low Delay
  • the video delay is extremely small (less than one frame of image period), which is completely imperceptible to the human eye and can be regarded as real time.
  • the innovative rate adaptive transmission technology according to the transmission distance and signal attenuation, can adaptively adjust the digital compression ratio to achieve the best video image effect.
  • the first audio and video to AVT interface chip 120 may be a National Semiconductor (NS) 2510/NS2520/NS2530 chip, which has at least one pair of output differential lines (Serial Digital OUT, SDO )+ ⁇ SDO-) to realize the transmission of AVT video data by connecting the two pins of the third pin pair respectively.
  • NS National Semiconductor
  • the NS2510/NS2520/NS2530 chip video input interface is compatible with 10/20bit bit width, and has multiple video formats such as BT656/1120, CEA-861, CPI, DVP, etc.
  • the maximum supported picture resolution is 1920 ⁇ 1080, and the picture is smooth It is 30 frames per second (1080progressive scan@30frame per second, 1080P@30fps), and supports digital audio interface (Sony/Philips Digital Interface, SPDIF)/Integrated Circuit Sound (I2S) audio embedding.
  • SPDIF Nony/Philips Digital Interface
  • I2S Integrated Circuit Sound
  • the first audio and video to AVT interface chip 120 can receive audio and video data sent by an external device, and at the same time, convert the audio and video data into AVT video data and transmit it to the third pin pair.
  • the AVT video data is transmitted by the core of the network cable connected to the third pin pair.
  • the Ethernet data and the DC power supply sent by the external device are transmitted to the first network transformer 130 through the first pin pair and the second pin pair, and then transmitted to the power receiving terminal, so as to be based on the data of this embodiment
  • the transmission device 100 can use a network card interface and a network cable to simultaneously realize the transmission of audio and video data, the transmission of Ethernet data, and the POE power receiving (or power supply).
  • the data transmission device 100 further includes a second audio/video to AVT interface chip 140, and two pins of the fourth pin pair are respectively connected to the second audio/video to Another pair of output differential lines of the AVT interface chip 140.
  • a second audio and video to AVT interface chip 140 can be further added and connected to the fourth pin pair in the idle state. So as to realize the transmission of two channels of audio and video data.
  • the two channels of audio and video data can be passed through the first audio and video to AVT interface chip 120 and the second audio and video to AVT interface chip respectively. 140 and its corresponding pin pair for transmission.
  • the second embodiment of the present application also provides a data transmission device, including the data transmission device 100 described in any of the foregoing embodiments.
  • the data transmission device may also include a data acquisition module (such as a microphone, camera, etc.), an audio and video processing chip, wherein the audio and video data collected by the data acquisition module is sent to the audio and video processing chip, The processing chip sends it to the first audio/video conversion AVT interface chip 120 after processing.
  • the audio and video processing chip is also connected to the first network transformer 130 to receive Ethernet data and/or DC power supplied by the first network transformer 130.
  • the third embodiment of the present application also provides a data receiving device 200 matched with the above-mentioned data transmission device 100.
  • the data receiving device 200 includes a second network card interface 210 and an AVT interface audio and video chip 220 And a second network transformer 230, the second network card interface 210 is provided with a third pin pair and a first pin pair and a second pin pair for realizing Ethernet data transmission; wherein, the second network transformer 230 is connected to the first pin pair and the second pin pair; the third pin pair is connected to the AVT interface audio and video chip.
  • the second network card interface 210 and the first network card interface 110 are the same network card interface, for example, both are RJ45 interfaces, the number of pins it has, and the definition of each pin
  • the first network card interface 110 is the same, which is not repeated in this application.
  • the AVT video data or Ethernet data transmitted by the data transmission device 100 through the network cable is transmitted to the second network card interface 210 through the network cable, and is transmitted to the corresponding pin via the corresponding pin of the second network card interface 210.
  • Components For example, the AVT video data is transmitted to the AVT interface audio and video conversion chip 220 from the third pin pair to be converted into audio and video data.
  • the Ethernet data is transmitted to the second network transformer 230 via the first pin pair and the second pin pair.
  • the data receiving device 200 may also send Ethernet data or DC power supply through the second network card interface 210, and the Ethernet data or DC power supply may be sent to the first pin of the first network card interface 110 of the data transmission device 100 through the network.
  • the pair and the second pin pair are passed through the first network transformer 130 to realize Ethernet data transmission and power supply.
  • the AVT interface audio/video conversion chip 220 is a dual AVT interface audio/video conversion chip; the fourth pin pair is connected to the dual AVT interface audio/video conversion chip.
  • the AVT interface audio and video conversion chip 220 here adopts a dual AVT interface audio and video conversion chip.
  • the fourth pin pair is also connected to the AVT interface audio and video chip 220, so that the AVT interface audio and video chip 220 can receive AVT video data converted from two channels of audio and video data at the same time, and convert it into audio and video data at the same time. Perform playback display.
  • the AVT interface to audio and video chip 220 can be NS2511/NS2521/NS2531 chip, NS2511/NS2521/NS2531 chip as a decoding chip paired with NS2510/NS2520/NS2530 chip, not only fully supports NS2510/NS2520/NS2530 chip format, but also It can receive two signals at the same time.
  • the fourth embodiment of the present application further provides a data receiving device, including the data receiving apparatus 200 as described in any of the foregoing embodiments.
  • the data receiving device may also include a data display module and a power supply.
  • the audio and video data generated by the AVT interface audio and video chip 220 is sent to the display module for display.
  • the power supply is connected to the second network transformer 230 to output a DC power supply meeting the requirements through the second network transformer 230.
  • the fifth embodiment of the present application also provides a data transmission system, including a data transmission device as in any one of the above embodiments and a data receiving device as in any one of the above embodiments;
  • a network card interface is connected with the second network card interface of the data receiving device through a network cable.
  • the data transmission device serves as the power receiving terminal, and the data receiving device serves as the power supply terminal.
  • the data transmission device may also serve as the power supply terminal.
  • the data receiving device serves as the power receiving terminal, and these solutions are all within the protection scope of the present application.

Abstract

L'invention concerne un appareil de transmission de données comprenant une première interface de carte réseau, une première puce d'interface de transfert d'audio/vidéo à vidéo avancé (AVT), et un premier transformateur de réseau. La première interface de carte réseau comprend une première paire de broches, une deuxième paire de broches, et une troisième paire de broches, pour la transmission de données Ethernet. Le premier transformateur de réseau est connecté à la première paire de broches et à la deuxième paire de broches. Les deux broches de la troisième paire de broches sont respectivement connectées à la première puce d'interface de transfert d'audio/vidéo à AVT. L'invention concerne également un dispositif et un système de transmission de données, et un appareil et un dispositif de réception de données.
PCT/CN2019/127859 2019-01-23 2019-12-24 Appareil, dispositif, et système de transmission de données, et appareil et dispositif de réception de données WO2020151445A1 (fr)

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CN201920126582.6U CN209330135U (zh) 2019-01-23 2019-01-23 数据传输装置、设备、系统及数据接收装置、设备
CN201920126582.6 2019-01-23

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CN209330135U (zh) * 2019-01-23 2019-08-30 广州视源电子科技股份有限公司 数据传输装置、设备、系统及数据接收装置、设备
CN209330231U (zh) * 2019-02-15 2019-08-30 广州视源电子科技股份有限公司 网络摄像机及录播系统
CN112269460A (zh) * 2020-10-26 2021-01-26 珠海格力电器股份有限公司 示教器的供电方法及系统、电子装置、处理器

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CN2694657Y (zh) * 2004-02-21 2005-04-20 华为技术有限公司 一种数据语音分线及远程供电装置
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