Data compression transmission method based on IEEE754 format

A technology of data compression and transmission method, applied in the direction of digital transmission system, transmission system, electrical digital data processing, etc., can solve the problems of high servo cycle and low data transmission volume, and achieve the effect of improving limitations and improving transmission efficiency

Active Publication Date: 2020-07-10
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing Zigbee technology is very mature, when it transmits data with small values ​​and low precision, the data transmission volume under the fixed byte number is low, and the servo cycle is relatively low under the fixed distance and the number of floating point numbers. Insufficient high

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  • Data compression transmission method based on IEEE754 format
  • Data compression transmission method based on IEEE754 format
  • Data compression transmission method based on IEEE754 format

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Experimental program
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Embodiment 1

[0042] 1. Data compression transmission:

[0043] 1) Collect N data, where N is a positive integer.

[0044] For example: The collected data are -169.224, 12.3014, 36.489, 53.2159, -462.364, -45.36, -99.3705, -365.24.

[0045] 2) Divide the N data into X groups according to specific conditions (reserved precision and sign bit processing need to be considered), and X is a positive integer.

[0046] Specifically, the N data are divided into two groups, then X=2, the first group is marked as a, and the second group is marked as b, as follows:

[0047] data a 1

[0048] 3) Initialize group number mark value i=1 and checksum C 0 =0.

[0049] 4) Take the first group of data, reserve the corresponding precision and process the sign for each data as needed, and then assemble it into a decimal integer D not exceeding 15 digits 1 (Default first time i=1).

[0050] As the following group 1 data:

[0051] data a 1

[0052] where a 1 is a negative value, and ...

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Abstract

The invention discloses a data compression transmission method based on an IEEE754 format. The method comprises the following steps of: grouping acquired data, assembling the data into a decimal number not more than 15 bits according to a certain rule, converting the decimal number into 8-byte data according to an IEEE754 double-precision floating point type format, adding a data head, a data tailand a checksum to the 8-byte data, and sending the 8-byte data; after receiving the data, checking, by the receiving end, whether the data is complete or not and whether the data is correct or not; and if the data is complete and correct, firstly filtering the data head, the data tail and the checksum, then splitting the data, then converting the data into decimal integers according to an IEEE754double-precision floating point type format, separating the obtained decimal integers according to an assembly format before compression, and then processing precision and symbols to obtain data before compression. According to the method, the transmission efficiency can be remarkably improved when data with small numerical values and low precision are transmitted, and wrong data and incomplete data can be autonomously cleared.

Description

technical field [0001] The invention relates to a data compression transmission method based on the IEEE754 format, and belongs to the technical field of data compression processing. Background technique [0002] Information technology is widely used in various fields, and data transmission plays a vital role in the field of communication methods. Zigbee technology is a short-distance, low-complexity, low-power, low-speed, low-cost two-way wireless communication technology. Transmission, also suitable for typical applications with periodic data, intermittent data and data transmission with low latency. [0003] The invention patent with the publication number CN 105634499A discloses a data conversion method based on new short floating-point data, including: determining the transformation form of data conversion and the transformation algorithm adopted, and the transformation form of data conversion includes but not Limited to compression, decompression, storage and transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L1/00G06F11/10
CPCH04L69/04H04L1/0061G06F11/1004H04L67/565
Inventor 庄未张瑞欣吴昌松黄用华康文杰杨继伟张楠刘夫云唐荣江孙永厚钟永全
Owner GUILIN UNIV OF ELECTRONIC TECH
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