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FPGA based multi-channel data recording and playback method

A technology of data recording and data recorder, applied in the direction of electrical digital data processing, instruments, etc., can solve the problem of system cost increase, and achieve the effect of reducing system cost, convenient data management, and simplifying system design

Active Publication Date: 2016-01-13
中国船舶重工集团公司第七二六研究所
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

If a recording operation is required to record multi-channel data synchronously, it is necessary to customize a dedicated data recorder or configure a data switch, resulting in an increase in system cost

Method used

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  • FPGA based multi-channel data recording and playback method
  • FPGA based multi-channel data recording and playback method
  • FPGA based multi-channel data recording and playback method

Examples

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Embodiment Construction

[0052] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0053] In this embodiment, the interface board of the recorder in the present invention is connected to multiple data sources through optical fibers, the interface board of the recorder is connected to the data recorder through the data bus and the motherboard connector of the recorder, and the data source is transmitted by optical fiber Ethernet The frame protocol format, while sending a data packet with a frame length of 638 Bytes, the data packet format is as follows figure 2As shown, the cont...

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Abstract

The invention provides an FPGA based multi-channel data recording and playback method. With a method for setting a data selector and adding or stripping marks, a function for completing the recording of multi-channel data working synchronously by a one-time recording operation can be achieved; and meanwhile, when a single task formed by one-time recording is in the playback operation, data can be returned through corresponding channels without packet loss. The multi-channel data recording and playback method can be used for recording multi-channel real-time data working synchronously, and the data can be played back at any time when needed to reproduce a test scenario. According to multi-channel data recording and playback method, the data can be effectively managed and used, the function of a data switch is replaced to a certain extent, the system design is simplified, and the system cost is reduced.

Description

technical field [0001] The present invention relates to data transmission control, in particular to an FPGA-based multi-channel data recording and playback method, which is used to record real-time data sent by a data source, and can playback the data at any time to reproduce the test situation when necessary. A data recorder is needed to complete the realization. Background technique [0002] Generally, the data logger adopts a "point-to-point" method to record the data of each channel, and the multiple data tasks formed bring a lot of inconvenience in management and use, and sometimes even cause the loss of the recorded data tasks. For a single-bus data logger, one recording operation can only record multi-channel data of time-sharing work. To complete the recording of multi-channel data for synchronous work, it needs to be completed with the cooperation of a data switch, even if the data logger provides multiple sets of data. Bus interface, but limited by its own bandwid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
CPCG06F13/382
Inventor 史磊任娟
Owner 中国船舶重工集团公司第七二六研究所
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