High-speed real-time data acquisition and transmission module

A technology of real-time data acquisition and real-time data transmission, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as data loss, reduce failure rate, improve memory application success rate, and improve robustness. Effect

Inactive Publication Date: 2019-04-02
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the case of high-speed transmission, large instantaneous fluctuations or interruptions will have a catastrophic impact on data transmission, which may cause a large amount of data loss

Method used

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  • High-speed real-time data acquisition and transmission module
  • High-speed real-time data acquisition and transmission module

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Embodiment Construction

[0019] see figure 1 . In the embodiments described below, a high-speed real-time data acquisition and transmission module includes: a real-time data acquisition unit, a real-time data recording unit, and a real-time data transmission unit. After the intermediate frequency satellite signal is demodulated and decoded by the demodulation and decoding board of the high-speed demodulator, a structured frame data stream is formed, and the frame data stream is sent to the real-time data acquisition unit through the hardware data bus, and the real-time data acquisition unit adopts millisecond ( ms) interval time, the data within 1s is processed into pieces, and the collected frame data stream is sent to the real-time data recording unit and the real-time data transmission unit respectively, and the real-time data recording unit sends the frame data stream to the disk array for processing. Local storage, real-time data transmission unit performs data transmission with back-end devices...

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Abstract

The invention discloses a high-speed real-time data acquisition and transmission module, and aims to provide a real-time data acquisition and transmission module which can meet data transmission requirements of a high-speed satellite communication system and has high tolerance for the rate fluctuation of high-speed data transmission. The high-speed real-time data acquisition and transmission module is implemented according to the following technical scheme: a frame data flow enters a real-time data acquisition unit through a hardware data bus, the traditional mode of acquiring data in a centralized manner within 1s is changed into piecewise acquisition and processing with millisecond-level interval time, and memory application and decoupling isolation of module units such as a data acquisition unit, a storage unit and a transmission unit are performed by adopting a cache sequence; the real-time data acquisition unit respectively transmits the acquired frame data flow to a real-time data recording unit and a real-time data transmission unit, the real-time data recording unit transmits the frame data flow to a disk array for storage, and the real-time data transmission unit carries out data caching also by adopting a cache sequence and transmits the data to back-end equipment by adopting a TCP (Transmission Control Protocol).

Description

technical field [0001] The invention relates to a real-time data acquisition and transmission module mainly used in the field of high-speed satellite communication systems. Background technique [0002] At present, information technology has entered a highly developed stage, and the amount of information in the field of satellite communication has grown exponentially. Both civilian and military use have put forward higher and higher requirements for the information transmission capability of satellite communication systems. For example, NASA's synchronized spacecraft-to-ground data transfer rates reached 800 Mbps in 2008 and are expected to reach 100 Gbps in 2020. The data communication satellite launched by Japan in 2008 successfully established a two-way network link. The data transmission speed of each direction line is 1.2Gbps, which is jointly completed by two 622Mbps channels. Japan also plans to launch in 2019 an "optical data relay satellite" that relays transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18578H04B7/18597
Inventor 林勤
Owner 10TH RES INST OF CETC
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