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Data compression optimization method for power battery

An optimization method and power battery technology, applied in the direction of electrical components, code conversion, etc., can solve a large amount of data transmission costs and data storage costs, and achieve the effects of saving data storage space, reducing transmission and storage costs, and alleviating data management pressure

Inactive Publication Date: 2020-03-24
BEIJING JIAOTONG UNIV +1
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AI Technical Summary

Problems solved by technology

With the increasing application of power batteries year by year, a large amount of operating data has been generated. This method will cause a large amount of data transmission costs and unnecessary data storage costs.
Facing the demand of scientific and intelligent power battery management, this phenomenon is obviously inappropriate

Method used

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  • Data compression optimization method for power battery
  • Data compression optimization method for power battery
  • Data compression optimization method for power battery

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Embodiment Construction

[0037] Attached below Figure 1-4 for further clarification.

[0038] The invention provides a data compression optimization method for a power battery, and has two specific optimization methods for two formats of a binary file and a text file.

[0039] The optimization compression method, for the binary file format optimization method process is as follows figure 1 :

[0040] Step 1: Classify and record the operating data generated by the electric vehicle power battery according to the data type; obtain independent data strings arranged in chronological order;

[0041] Step 2: Take the first data in the data string obtained in step 1 as the first interval end value; the subsequent data are sequentially compared with the first interval end value until the absolute value of the resulting difference is greater than the threshold value of 127 The data, let this data be the second interval end value, and the difference data before the first interval end value and the second int...

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Abstract

The invention relates to a data compression optimization method for a power battery. Data of the power battery plays an important role in daily detection of the battery, fault reason searching after afault occurs, power battery characteristic analysis based on big data and electric vehicle surplus value evaluation based on historical data. The method is simple and easy to implement, the data volume can be effectively reduced, and data lossless restoration can be achieved. The optimized compression processing mode for the text file is wider in applicable data type and better in readability, and the optimized compression processing mode for the binary file is higher in compression strength, so that the data storage space can be saved to the maximum extent.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a data compression optimization method for power batteries. Background technique [0002] With the continuous improvement of people's living standards and the continuous enhancement of environmental protection awareness, the society's demand in the field of new energy is increasing. As one of the important components in the field of new energy, power batteries have more and more application scenarios. A large number of power batteries are used as the main power source in automobiles, urban rails, and light rails. Due to the characteristics of the power battery itself, its operating data requires a large amount of centralized transmission and long-term storage. These operating data play a pivotal role in future problem tracing, life evaluation, residual value evaluation, and big data information mining of power batteries. [0003] The existing battery management systems in the ma...

Claims

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Application Information

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IPC IPC(8): H03M7/30
CPCH03M7/30
Inventor 张言茹汪星华张秋敏王瑞王大海张维戈
Owner BEIJING JIAOTONG UNIV
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