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Data processing method and device

A data processing and data technology, applied in the computer field, can solve the problems of difficult labeling, inapplicability, and large data volume.

Active Publication Date: 2021-01-08
北京和利时控制技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has three disadvantages: first, there is too much additional information, and in some scenarios, the amount of data will increase instead; second, when data is sorted and restored, it needs to be compared and matched, and the amount of matching calculation is relatively large; third, it Not suitable for compile-based systems (their data is a "data block", which is difficult to label)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Such as figure 1 As shown, this embodiment provides a data processing method, which is applied to the data sender, and the method includes:

[0081] Step S101, comparing the data packet to be transmitted this time with the data packet transmitted last time, and obtaining the changed data in the data packet to be transmitted this time;

[0082] Step S102, generating a first compressed data packet according to the changed data and first information for reading the changed data;

[0083] Step S103 , transmit the first compressed data packet to the data receiver, so that the data receiver can obtain the data packet to be transmitted this time according to the first compressed data packet and the data packet obtained last time.

[0084] In this embodiment, the last data packet transmitted by the data sender is the uncompressed original data packet last transmitted to the data receiver. The data packet to be transmitted this time refers to the uncompressed original data pac...

Embodiment 2

[0119] Such as image 3 As shown, this embodiment also provides a data processing method, which is applied to the data receiver, and the method includes:

[0120] Step S201, receiving the first compressed data packet sent by the data sender;

[0121] Step S202, according to the first compressed data packet and the data packet obtained last time, obtain the data packet to be transmitted this time;

[0122] Wherein, the first compressed data packet is a data packet generated according to the changed data in the data packet to be transmitted this time and the first information for reading the changed data.

[0123] Through the above technical solution, the amount of data for lossless transmission can be reduced, and the efficiency of transmission and decompression can be improved.

[0124] It should be noted that if the data packet sent by the data sender carries information identifying the first data transmission, the data receiver directly takes the received data packet as th...

Embodiment 3

[0141] The data processing method of the present application is further described below.

[0142] In this embodiment, the data sender may be a controller or HMI, and the data receiver may also be a controller or HMI. Any data sender can communicate with multiple data receiving methods. In this embodiment, data transmission between data sender A and data receiver B is taken as an example for illustration.

[0143] In this embodiment, the data processing method (that is, the data compression method) applied to the data sender mainly includes the following parts: data slicing, determining valid data, generating a map table (equivalent to the aforementioned index table), generating compressed data Bag.

[0144] 1. Data slicing

[0145] In this embodiment, the data can be segmented to identify the data first, and the data can be identified on the principle of 4-byte alignment for the analog data storage area, and the data can be identified on the principle of 1-byte alignment for...

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Abstract

The invention provides a data processing method and device, and the method comprises the steps: comparing a to-be-transmitted data package at this time with a data package transmitted last time, and obtaining changed data in the to-be-transmitted data package at this time; generating a first compressed data package according to the changed data and first information used for reading the changed data; and transmitting the first compressed data packet to a data receiver, so that the data receiver obtains the to-be-transmitted data package this time according to the first compressed data packageand the data package obtained last time. According to the technical scheme, the lossless transmission data volume can be reduced, and the transmission efficiency is improved.

Description

technical field [0001] The present invention relates to but not limited to the computer field, and in particular relates to a data processing method and device. Background technique [0002] DCS (Distributed Control System, Distributed Control System) is a typical industrial control system. In the DCS system, real-time data communication is the "nerve" of the DCS system. Its large capacity and efficient operation are the reliable , The basis of advanced control functions. [0003] Traditional IT systems currently have various types of data communication and compression processing algorithms that are suitable for different IT business needs, but they are not suitable for data communication in real-time industrial control systems. [0004] At present, most of the practices in the industry are: for real-time communication data, no compression algorithm is used, and the original data is reported and processed. This approach fully meets the application requirements for medium a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06
CPCH04L41/0246H04L69/04H04L69/16
Inventor 周剑李蒙
Owner 北京和利时控制技术有限公司