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WO2011106923A1 - Système et procédé de contrôle basés sur un double bus - Google Patents

Système et procédé de contrôle basés sur un double bus Download PDF

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Publication number
WO2011106923A1
WO2011106923A1 PCT/CN2010/070807 CN2010070807W WO2011106923A1 WO 2011106923 A1 WO2011106923 A1 WO 2011106923A1 CN 2010070807 W CN2010070807 W CN 2010070807W WO 2011106923 A1 WO2011106923 A1 WO 2011106923A1
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WO
WIPO (PCT)
Prior art keywords
data
encoded data
analog
analog input
network
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Application number
PCT/CN2010/070807
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English (en)
Chinese (zh)
Inventor
栾焕志
赵先林
胡扬忠
邬伟琪
Original Assignee
杭州海康威视数字技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 杭州海康威视数字技术股份有限公司 filed Critical 杭州海康威视数字技术股份有限公司
Priority to PCT/CN2010/070807 priority Critical patent/WO2011106923A1/fr
Publication of WO2011106923A1 publication Critical patent/WO2011106923A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules

Definitions

  • the present invention generally relates to monitoring systems and methods for data transmission. More specifically, the present invention relates to a dual bus based monitoring system and method for data transmission. Background technique
  • the simulation matrix is stable in operation, simple in operation, low in cost, less in delay, and large in capacity.
  • the shortcomings of the analog matrix First, the signal is unstable, because the monitoring system is now multi-level networking, and the weakness of the analog matrix is that the more the cascade, the weaker the signal, so it is inevitable to damage the signal through several levels of networking; The wiring is complicated and unfavorable.
  • the monitoring project is getting larger and larger. Under this development trend, if the traditional analog matrix will inevitably encounter complex wiring and large-scale matrix groups, this will make the original large-scale system more complicated. And it is not conducive to later maintenance and management. Finally, network management and remote monitoring are not possible.
  • Ethernet-based "digital matrix” Another monitoring system that implements video switching is the Ethernet-based "digital matrix.”
  • the product are based on Ethernet” network matrix,.
  • the "network matrix” is a module that adds code transmission based on the original analog matrix. This module is also called video encoder.
  • the remote client software or monitoring center software can connect the code of the matrix through software.
  • Module the networking of the matrix. Through the network, full control of the matrix or partial authority control can be realized, so that the higher-level department can centrally manage and control the lower-level departments.
  • the network matrix must use video compression coding technology.
  • the analog matrix is used in the monitoring system of the analog matrix, and the encoding, storage, decoding, and video processing are required to be implemented by the DVR, the DVS, and the corresponding decoder, and the analog matrix cannot be managed through the network.
  • the entire video surveillance system is costly, difficult to maintain, and has poor scalability.
  • the "digital matrix" monitoring system based on Ethernet can solve the above problems well.
  • Ethernet-based "digital matrix" analog switching due to Ethernet bandwidth limitations, must be compressed before the analog switching, then transmitted through the network, and finally decoded on the wall display.
  • the present invention has been made in consideration of the above technical problems, and the present invention introduces a PCIE switch into an Ethernet-based "digital matrix" to implement a dual-bus based video monitoring system and method.
  • the PCIE switch is used for analog video switching. Before the switching, the analog input does not need to be compressed. It only needs to convert the A/D sample into the corresponding digital signal, and then transmit the corresponding data to the corresponding video output through the PCIE switch.
  • the unit performs display without decompression before display, so it can improve the quality of the video and reduce the delay of switching.
  • this method retains the Ethernet switch in the Ethernet-based "digital matrix".
  • the Ethernet switch is mainly used to transmit the compressed coded data for storing and decoding the encoded data. Therefore, based on the "digital matrix" implemented by this method, it can not only have all the advantages of Ethernet-based "digital matrix", but also can well solve the shortcomings of poor video quality and high delay during analog switching.
  • a dual bus based monitoring system comprising: a data input portion for providing at least analog input data; and a dual bus monitoring portion for switching with different buses
  • the uncompressed analog input data and the first encoded data obtained by the analog/digital conversion of the analog input data are separately transmitted.
  • the data input portion further provides encoded second encoded data, and one of the switches combines the first encoded data and the second encoded data together as encoded data for transmission.
  • the monitoring system further includes a display portion for displaying analog input data directly outputted by the dual bus monitoring system portion without compression and the encoded data.
  • the monitoring system further comprises a network storage portion for storing the encoded data.
  • the monitoring system further includes a management portion for issuing a network control command to the dual bus monitoring portion for controlling the encoding, decoding, display and storage operations of the analog input data.
  • the dual bus monitoring portion includes: an analog input encoding processing portion, configured to receive Simulating input data, and performing analog/digital conversion to obtain uncompressed data, and then encoding the uncompressed data to obtain first encoded data; and an Ethernet switch for transmitting the encoded data to store the encoded data in the a network storage portion and displayed on the display portion, and transmitting a network control command issued by the management portion for each part of the dual bus monitoring portion to operate according to a network control command; and a PCIE switch for transmitting the analog input The unprocessed data output by the encoding processing portion is displayed on the display portion.
  • an analog input encoding processing portion configured to receive Simulating input data, and performing analog/digital conversion to obtain uncompressed data, and then encoding the uncompressed data to obtain first encoded data
  • an Ethernet switch for transmitting the encoded data to store the encoded data in the a network storage portion and displayed on the display portion, and transmitting a network control command issued by the management portion for each part of the dual bus monitoring
  • the dual bus monitoring portion further includes a decoding portion for decoding the encoded data, and transmitting the decoded data to the display portion for display.
  • the management part comprises a network control command control module, configured to receive a user instruction, convert the received user command into a network control command, and issue the network control command, so that the monitoring system performs a corresponding control operation.
  • a network control command control module configured to receive a user instruction, convert the received user command into a network control command, and issue the network control command, so that the monitoring system performs a corresponding control operation.
  • the network control command includes an encoding storage command
  • the management portion further includes an encoded data storage control module, configured to control whether the analog input encoding processing portion performs analog/digital conversion on the input analog signal according to the encoding storage command.
  • the encoded data is stored on the network storage device through an Ethernet switch.
  • the network control command includes a decoding display command
  • the management portion further includes a decoding display control module, configured to control the decoding portion to receive the encoded data according to the decoding display command and perform decoding, and control the decoding portion according to the decoding display command.
  • the PCIE switch receives uncompressed video data for transmission to the display unit for display.
  • the network control command includes a network preview command
  • the management part further includes an encoded data real-time network preview control module, configured to control the analog input encoding processing part to transmit real-time encoded data through the Ethernet switch according to the network preview command, To achieve real-time network preview.
  • the network control command includes a playback control command
  • the management portion further includes an encoded data playback control module for controlling the decoding portion to decode the encoded data for playback according to a playback control command.
  • a method for a dual bus based monitoring system comprising a data input portion for providing at least analog input data; and a dual bus monitoring portion for separately transmitting on different buses
  • the compressed analog input data and the first encoded data obtained by the analog/digital conversion of the analog input data comprising the steps of: receiving a user operation instruction, and converting into a corresponding network control command; according to the network control command Type, correspondingly
  • the control dual bus monitoring section separately transmits uncompressed analog data and encoded data in a switch having different buses, wherein the encoded data includes first encoded data obtained by analog-to-digital conversion of the analog input data.
  • a program for causing a computer to implement a method for a dual bus based monitoring system comprising a data input portion for providing at least analog input data; and a dual bus monitoring portion for The different bus separately transmits the uncompressed analog input data and the first encoded data obtained by the analog/digital conversion of the analog input data
  • the method comprises the following steps: receiving a user operation instruction, and converting the same into a corresponding network control command
  • the dual bus monitoring portion is controlled to separately transmit uncompressed analog input data and encoded data by switches having different buses, wherein the encoded data includes analog/digital conversion of the analog input data.
  • the present invention can realize full control or partial authority control of the entire monitoring system through the management platform by integrating the Ethernet switch in the monitoring system, so that the upper-level department can centrally manage and control the lower-level departments;
  • the network can preview the analog input video in real time, and can play back the previous video at the same time;
  • the analog coded processing unit can store the analog coded data through the network;
  • the network decoding unit can take the code to the IPC, DVR, DVS, and streaming server. The data stream is decoded and displayed.
  • the analog input can be switched after A/D sampling without compression, which can reduce the switching delay and improve the image quality of the video.
  • the dual-bus-based monitoring system solves the problems in the analog matrix system and the Ethernet-based matrix system, while retaining the advantages of both systems, and possessing all the functions of both systems.
  • Figure 1 illustrates a schematic diagram of a dual bus based monitoring system in accordance with the present invention
  • FIG. 2 is a schematic view showing a detailed structure of an example of a dual bus monitoring section according to the present invention.
  • Figure 3 is a diagram showing the detailed structure of another example of the dual bus monitoring section according to the present invention.
  • FIG. 4 is a schematic view showing a detailed structure of a management platform according to the present invention.
  • Figure 5 is a flow chart showing the operational flow of a dual bus based monitoring system in accordance with the present invention. detailed description
  • FIG. 1 illustrates a schematic diagram of a dual bus based monitoring system in accordance with the present invention.
  • the handover monitoring system includes a management platform 101, a network storage device 102, a streaming media server 103, a dual bus monitoring portion 104, an analog input device 105, and a display device 106.
  • FIG. 1 For the purpose of explaining the working principle of the entire monitoring system, only one network storage device 102, streaming media server 103, dual bus monitoring portion 104, analog input device 105, and display device 106 are shown in FIG.
  • the network storage device 102, the streaming server 103, the dual bus monitoring portion 104, the analog input device 105, and the display device 106 shown in FIG. 1 may each be one or more.
  • a streaming server 103 is a device that can be used to provide an encoded data source, which can be a DVR (Digital Video Recorder), a DVS (Digital Video Server), a network camera, or other providing encoding, in accordance with an embodiment of the present invention.
  • the device of the data source can be a DVR (Digital Video Recorder), a DVS (Digital Video Server), a network camera, or other providing encoding, in accordance with an embodiment of the present invention.
  • the device of the data source can be a DVR (Digital Video Recorder), a DVS (Digital Video Server), a network camera, or other providing encoding, in accordance with an embodiment of the present invention.
  • the device of the data source can be a DVR (Digital Video Recorder), a DVS (Digital Video Server), a network camera, or other providing encoding, in accordance with an embodiment of the present invention.
  • the device of the data source can be a DVR (Digital Video Recorder), a DVS (Digital Video Server), a
  • the display device 106 is configured to display the display output of the dual bus monitoring portion 104, the display content including the encoded data in the network storage device 102, the encoded data provided by the streaming server 103, and the analog input provided internally by the dual bus monitoring portion 104.
  • the digitized uncompressed data of device 105 It is worth noting that in the presence of multiple display devices 106, some display devices 106 may only display encoded data, while other display devices 106 may only display uncompressed data.
  • the network storage device 102 is mainly used for storing the encoded data provided by the streaming server 103 and the analog input data of the analog input device 105 for digitizing, encoding, etc., preprocessed data by the dual bus monitoring portion 104.
  • the analog input device 105 mainly provides an analog input source for the dual bus monitoring portion 104.
  • the analog input data of the analog input device 105 is encoded by the dual bus monitoring portion 104 for storage, and the dual bus monitoring portion 104 is for the analog input device.
  • the analog input data of 105 is digitized and displayed directly through the display output of the dual bus monitor section 104.
  • the dual bus monitoring section 104 is responsible for digitizing the analog input data input to the analog input device 105 of the dual bus monitoring section 104, and encoding the digitized data, and then supplying the encoded data to the network storage device 102 for processing.
  • the digitized data of the analog input of the analog input device 105 can be directly output through the display output of the dual bus monitoring portion 104 without being compressed for display by the display device 106.
  • the structure of the dual bus monitoring section 104 will be described in further detail below.
  • the management platform 101 is mainly used for managing the entire monitoring system, for example, controlling the data switching of the dual bus monitoring section 104, basic operations such as data encoding, decoding, and operation authority, and related business operations in the monitoring system. For example, the management platform 101 can preview the data processed by the dual bus monitoring portion 104 in real time.
  • the management platform 101 may be a general purpose computer.
  • FIG. 2 is a schematic diagram showing a detailed structure of an example of the dual bus monitoring section 104 shown in FIG. 1.
  • the dual bus monitoring section 104 includes one or more analog input encoding processing units 201 r 201 m , one or more decoding units 202 202 202 202 202 202 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204 204
  • analog input encoding processing units 201 r 201 m are collectively referred to as analog input encoding processing unit 201, and one or more decoding units 202 1 - 202 11 are collectively referred to as not causing confusion.
  • Decoding unit 202 Decoding unit 202.
  • each analog input encoding processing unit 201 receives analog input data from the corresponding analog input device 105 shown in FIG. 1, and then performs analog/digital (A/D) conversion, encoding, etc. deal with.
  • the preprocessed data herein includes at least the encoded data and the analog-to-digital converted uncompressed data required to display the video data.
  • the Ethernet switch 203 is configured to transmit the encoded data provided by the streaming server 103 and the encoded data encoded by the analog input encoding processing unit 201 to the management platform 101 shown in FIG. 1 and the network storage device 102 shown in FIG. At the same time, it is used to transmit the network control command sent by the management platform 101 in FIG. 1 to the analog input encoding processing unit 201 and the decoding unit 202.
  • the analog input encoding processing unit 201 transmits the encoded encoded data to the management platform 101 via the Ethernet switch 203 for real-time preview of the video.
  • the PCIE switch 204 is mainly used to simulate the data from the analog input encoding processing unit 201.
  • the number (A/D) converted uncompressed data is transmitted to the decoding unit 202, and then output by the decoding unit 202 to the display device 106 shown in Fig. 1 for display.
  • the management platform 101 in FIG. 1 in the presence of a plurality of analog input SO Olm encoding processing unit 202 and a plurality of decoding units 202 !! ⁇ , the management platform 101 in FIG.
  • the decoding unit 202 x sends a command via the Ethernet switch to the analog input encoding processing unit 201 y It is required to transmit the analog/digital converted uncompressed video data to a certain decoding unit 202 x , and the decoding unit 202 x outputs the corresponding data to the display device 106 in FIG. 1 for display.
  • the decoding unit 202 can decode the encoded encoded data transmitted by the Ethernet switch 203, and can decode the encoded data in the network storage device 102 shown in FIG. 1, or can also be the streaming media server shown in FIG.
  • the encoded data provided by 103 is decoded, and the uncompressed data transmitted by the analog input encoding processing unit 201 through the PCIE switch can also be received. Of course, uncompressed data can also be sent directly to display device 106 for display.
  • the decoding unit 202 supplies the data obtained by the decoding to the display device 106 for display. Therefore, after the dual bus monitoring portion 104 performs data digitization and encoding preprocessing on the analog input device 105 shown in FIG. 1, the analog/digital converted uncompressed data required for displaying the video can be transmitted to the PCIE switch 204. Corresponding decoding units are further displayed on the respective display device. At the same time, the encoded data can be stored on the NAS (network storage device) through the Ethernet switch 203, or the encoded data can be transmitted to the management platform through the Ethernet switch for real-time pre-existing as described above, in which the Ethernet and PCIE pairs are used.
  • the NAS network storage device
  • the Ethernet switch is mainly used to transmit the encoded data and various control commands
  • the PCIE switch is mainly used to transmit the uncompressed data after the analog input data is sampled. Therefore, the dual-bus-based video surveillance system can have all the advantages and functions of the Ethernet-based "digital matrix", and at the same time solve the large analog switching delay in the "digital matrix” based on Ethernet, and the video quality is poor. Such problems can achieve the switching delay and video quality of the analog matrix, and at the same time solve the poor scalability in the analog matrix, the video processing is complex, and the problems of centralized network management and remote monitoring cannot be performed.
  • FIG. 3 is a schematic diagram showing a detailed structure of another example of the dual bus monitoring section 104 shown in FIG. 1.
  • the dual bus monitoring section includes, in addition to the components of the same name as shown in FIG. 2, that is, one or more analog input encoding processing units 201 r 201 m , one or more decoding units 202 202 n , an Ethernet switch 203.
  • a PCIE (PCI Express) switch 204 (where m represents the number of analog input encoding processing units, n represents the number of decoding units), and includes a main control CPU (Central Processing Unit) 305.
  • main control CPU 305 In addition to the main control CPU 305, refer to the other components shown in Figure 3.
  • the main control CPU 305 is mainly used to assist the management platform to manage one or more analog input encoding processing units SO Olm as shown in FIG. 3 - one or more decoding units 202 ⁇ 202 ⁇ Ethernet switch 203 , PCIE ( PCI Express ) switch 204 to speed up the processing speed of the dual bus monitoring system of the present invention.
  • the management platform 101 as shown in FIG. 1 includes an encoded data storage control module 401, a decoded display control module 402, an encoded data real-time network preview control module 403, an encoded data playback control module 404, and a network control command control module 405. Portions of the management platform 101 are connected to a CPU (not shown) in the management platform 101 via a bus.
  • the network control command control module 405 passes the encoded data storage control module 401, the decoded display control module 402, the encoded data real-time network preview control module 403, the encoded data playback control module 404, and the network control command control module 405, through the Ethernet
  • the network switch 203 transmits control commands to the analog input encoding processing unit 201 and the decoding unit 202 as shown in FIG. 2 and the streaming server 103 and the network storage device 102 shown in FIG. 1, so that these devices complete the corresponding operations.
  • the management platform 101 receives various user commands through the network control command control module 405, and performs appropriate conventional processing on the received user commands to obtain corresponding network control commands, and obtains them through the system bus.
  • the network control commands are sent to corresponding portions of the management platform 101 for the corresponding control operations of the dual bus based monitoring system of the present invention.
  • the network control commands of the present invention may include code storage commands, playback control commands, network preview commands, and decode display commands, and the like.
  • the network control command control module 405 transmits the code storage command, the playback control command, the network preview command, and the decode display command to the encoded data storage control module 401, the encoded data playback control module 404, and the encoded data real-time network preview control module 403, respectively.
  • the encoded data storage control module 401 controls whether the analog input encoding processing unit 201 performs analog/digital conversion and encoding on the input analog input data according to the encoding storage command, and allows the analog input.
  • the encoded data is stored on the network storage device via the Ethernet switch 203, thereby enabling the dual bus monitoring system of the present invention to implement the DVR function.
  • the decoding display control module 402 controls the decoding unit 202 shown in FIG. 2 according to the decoding display command to pass through the Ethernet switch 203 shown in FIG.
  • the streaming server 103 (including IPC, DVS, and the The network storage device or the like receives the encoded data and controls the decoding unit 202 to perform decoding, thereby implementing the dual bus monitoring system as a decoder function or a digital switching function.
  • the decode display control module 402 also controls the decode unit 202 to receive uncompressed data via the PCIE switch 204 in accordance with the decode display command and transmit it to the display device for display.
  • the encoded data real-time network preview control module 403 controls the analog input encoding processing unit 201 to transmit real-time encoded data to the management platform shown in FIG. 1 via the Ethernet switch 203 according to the network preview command to implement real-time network preview.
  • the encoded data playback control module 404 controls the decoding unit 202 to search the encoded data stored by the network storage device 102 or the streaming server 103 shown in FIG. 1 through the Ethernet switch 203 according to the playback control command, and then stores the encoded data after the search. Perform a decoding playback preview.
  • the analog input encoding processing unit 201 when an analog input needs to be switched to a certain decoding unit and displayed on the display device, the analog input encoding processing unit 201 performs A/D conversion to the analog input device 105 shown in FIG. Uncompressed video data.
  • the control command is sent to the analog input encoding processing unit 201 through the Ethernet switch 203 shown in FIG. 2, and the analog input encoding processing unit 201 receives the corresponding command and then passes the PCIE switch 204 to be uncompressed.
  • the video data is transmitted to the corresponding decoding unit. Then, the corresponding video data is transmitted by the decoding unit 202 to the display device for display.
  • the entire monitoring system can be fully controlled or partially controlled by the management platform, so that the higher-level departments can centrally manage and control the lower-level departments.
  • the monitoring system of the present invention can be implemented as the other functions described above.
  • the dual bus based monitoring system of the present invention is implemented as a DVR or the like.
  • PCIE switch 204 when performing analog switching, there is no need to first perform three processes of encoding, network transmission, and decoding, and only need to directly transmit through PCIE. This can reduce the delay caused by encoding and decoding, and can make the analog input not degrade the video quality due to the codec.
  • the monitoring system of the present invention can realize full control or partial authority control of the entire monitoring system through the management platform, so that the upper-level department can centrally manage and control the lower-level departments; the management platform can be real-time through the network. Preview the video of the analog input and play back the previous video at the same time;
  • the analog encoding can be encoded by the network analog input encoding processing unit
  • the data is stored in a centralized manner; the encoded data stream can be decoded and displayed to the IPC, DVR, DVS, and streaming server by the network decoding unit.
  • the monitoring system of the present invention integrates the PCIE switch, and performs analog switching on the A/D sample after the analog input, and can perform switching display without compression, which can reduce the switching delay and improve the image quality of the video.
  • FIG. 5 is a flow chart showing the operation of a dual bus based monitoring system in accordance with the present invention.
  • the management platform 101 receives a user operation instruction.
  • step S503 the received user command is converted into a corresponding network control command, and the obtained network control command is sent to the network control command control module 405, so that the network control command control module 405 sends it to A corresponding processing unit controls the operation of the monitoring system of the present invention.
  • step S505 the network control command control module 405 transmits the network control commands it receives to the respective components of the management platform 101. Specifically, in step S505, first, the network control command control module 405 determines the types of the received network control commands, and sends corresponding network control commands to the encoded data storage control module 401 and the decoded display control module 402. The encoded data real-time network preview control module 403 or the encoded data playback control module 404.
  • step S507 the encoded data storage control module 401, the decoded display control module 402, the encoded data real-time network preview control module 403, and/or the encoded data playback control module of the network control command sent by the network control command control module 405 are received.
  • 404 interprets the received network control commands and controls the corresponding devices of the monitoring system based on the results of interpreting the network control commands.
  • step S509 the corresponding device that has received the network control command sent by the management platform 101 verifies the received network control command and acquires the parameters of the network control command.
  • the corresponding network control is then executed in accordance with the verified network control command and its parameters in step S511.
  • step S513 the corresponding device that receives the network control command sent by the management platform 101 returns the execution result of the network control command to the network control command control module 405, and ends the process.
  • the network control command of the present invention may include an encoding storage command, a playback control command, a network preview command, a decoding display command, and the like.
  • the code storage command, the playback control command, the network preview command, and the decode display command are respectively sent to the encoded data storage control module 401, the encoded data playback control module 404, the encoded data real-time network preview control module 403, and the decoded display control module 402.
  • the dual bus-based monitoring system according to the present invention can realize full control or partial authority control of the entire monitoring system through the management platform, so that the upper-level department can centrally manage and control the lower-level departments.
  • the dual bus-based monitoring system integrates an Ethernet switch and an integrated PCIE switch, so that the analog input video can be previewed in real time through the management platform, the previous video can be played back, and the analog encoding can be encoded by the network analog input encoding processing unit.
  • the data is stored centrally, and the encoded data stream can be decoded and displayed to the IPC, DVR, DVS, and streaming server through the network decoding unit.
  • the analog switch when the analog switch is performed, the analog input can be switched after A/D sampling without compression. display.
  • the dual bus-based monitoring system can reduce the switching delay and improve the image quality of the video, thereby solving the problems in the analog matrix system and the Ethernet matrix based system, while retaining the existence of the two systems.
  • the advantages also have all the features of both systems.
  • the method of operation of the dual bus based monitoring system in accordance with the present invention can be implemented as computer readable code recorded on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data readable by a computer system. Examples of the computer readable recording medium include a read only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and a carrier wave (such as data transmission via the Internet).
  • the computer readable recording medium can also be distributed in a networked computer system to store and execute the computer readable code in a distributed fashion.

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Abstract

Un système et un procédé de contrôle basés sur un double bus sont fournis. Le système de contrôle inclut : une partie d'entrée de données, qui est utilisée pour fournir des données d'entrée analogiques au moins; et une partie de contrôle à double bus, qui est utilisée pour transférer, séparément en utilisant des commutateurs avec des bus différents, des données non compressées obtenues par une conversion analogique / numérique des données d'entrée analogiques et les premières données codées obtenues en codant les données non compressées. En intégrant des commutateurs avec des bus différents dans le système de contrôle pour transférer les données non compressées et les données codées séparément, le retard du temps de commutation peut être réduit et la qualité de l'image vidéo peut être améliorée.
PCT/CN2010/070807 2010-03-01 2010-03-01 Système et procédé de contrôle basés sur un double bus WO2011106923A1 (fr)

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KR20030084524A (ko) * 2002-04-30 2003-11-01 이미지퀘스트(주) 웹 터미널 기능을 가진 컴퓨터용 모니터
CN1558610A (zh) * 2004-01-14 2004-12-29 浙江科华科技发展有限公司 Wlan网络监控系统
CN101431670A (zh) * 2008-12-12 2009-05-13 北京邮电大学 一种具有oam和监控功能的非压缩视频光端机

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* Cited by examiner, † Cited by third party
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CN110324367A (zh) * 2018-03-28 2019-10-11 东莞前沿技术研究院 远程监控系统及其监控方法、装置、存储介质和处理器
CN110324367B (zh) * 2018-03-28 2023-12-29 深圳光启空间技术有限公司 远程监控系统及其监控方法、装置、存储介质和处理器

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