GB/T 47346-2026Information technology - Brain-computer interfaces - Coding and decoding of visual evoked potential data (English PDF)

信息技术　脑机接口　视觉诱发电位数据编解码

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

October 1, 2026

Scope

GB/T 47346-2026 is the English-translated version of 信息技术　脑机接口　视觉诱发电位数据编解码.

GB/T 47346-2026 is the Chinese national standard covering the visual evoked potential BCI - the flickering stimuli, the EEG response they produce and the encoding and decoding that turns that response into a selection, which is the most practical non-invasive brain-computer interface there is. First edition, in force since 1 October 2026, and one of the earliest national standards anywhere on BCI data. It was issued on 31 March 2026 and takes effect on 1 October 2026, as a first edition. The document is under the responsibility of the Standardization Administration of China. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

Document preview — GB/T 47346-2026

National Standard of the People's Republic of China

ICS: 35.020
Classification: L 67

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 Visual evoked potential brain-computer interface
6 Data Encoding
6.1 Encoding Structure
6.1.1 General Rules
6.1.2 Stimulating Elements
6.1.3 Presentation Method
6.1.4 Stimulating Behavior
6.2 Encoding Parameters
6.2.1 General Parameters
6.2.2 Specific Parameters
6.3 Task Types and Timing
6.3.1 Task Type
6.3.2 Task Sequence
6.4 Coding Results and Evaluation
6.4.1 Encoding Result
6.4.2 Coding Evaluation
7 Metadata
7.1 Overview
7.2 Electroencephalogram (EEG) Signals
7.3 Experimental Information
8 Data Decoding
8.1 Overview
8.2 Preprocessing
8.3 Decoding and Recognition
8.4 Decoding Results and Evaluation
8.4.1 Decoding Result
8.4.2 Decoding Evaluation
8.4.3 Decoding Efficiency
9 Peripheral Drivers and Feedback
9.1 External Control Commands
9.2 Feedback 10
9.3 Output delay

1 Scope

This document specifies the data encoding and decoding process for visual evoked potentials in brain-computer interfaces, as well as the data involved in the encoding and decoding process. Requirements for metadata, peripheral drivers, and feedback. This document applies to research institutions, manufacturing companies, and third-party testing organizations in the design, development, and application of visual evoked potential brain-computer interfaces. And testing.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 7408.1 Representation for the Interchange of Date and Time Information - Part

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Brain-computer interfaces (BCI) A system for establishing a direct communication connection between the central nervous system of humans or other animals and external hardware and software systems.

Note. Brain-computer interfaces enable one-way or two-way communication with external devices and can be used to achieve control and/or feedback. [Source: GB/T 47023-2025, 3.1]

3.2 Bioelectric signals generated by the firing of neurons in the brain.

3.3 An electrophysiological neural response induced by external visual stimuli, manifested as a detectable potential.

3.4 lead Voltage between electrodes. [Source: GB 9706.226-2021,.201.3.205]

9.3 Output delay

10 Appendix A (Informative) Simple Use Case 11 A.1 Example 11 of a brain-controlled keyboard A.2 Example 12 of a brain-controlled wheelchair Reference 14

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Information Technology Standardization Technical Committee (SAC/TC28). This document was drafted by: Tianjin University, Haihe Laboratory for Brain-Computer Interaction and Human-Computer Collaboration, China Electronics Technology Standardization Institute, and Zhejiang University. South China University of Technology, Beijing Institute of Mechanical Equipment, China Electronics Cloud Brain (Tianjin) Technology Co., Ltd., East China University of Science and Technology, Shanghai University, China Information and Communications Technology Research Institute, Beijing University of Posts and Telecommunications, Qilu University of Technology (Shandong Academy of Sciences), South China Normal University, Chinese Academy of Medical Sciences Biomedical Engineering Research Institute, Shenggong Diting (Tianjin) Technology Co., Ltd., Tiankai Suishi (Tianjin) Intelligent Technology Co., Ltd., and Boruikang Technology (Shanghai) Joint-stock limited company. The main drafters of this document are. Ming Dong, Xu Minpeng, Xiao Xiaolin, Luo Ruixin, Mei Jie, Dong Jian, Yu Yuntao, Pan Gang, Li Yuanqing, Zhang Lijian, and Cheng Longlong. Jin Jing, Yang Banghua, Zhang Qian, Yang Chen, Huang Yongzhi, Wang Kun, Meng Jiayuan, Xu Fangzhou, Pan Jiahui, Chen Xiaogang, Yu Haiqing, Zhang Hao, Zhang Jiayang, Wu Jieyu Sun Yu, Sun Wenjing, Cui Bing, Hu Huizhong, Liang Liyan, Leng Jiancai, Sun Changcheng, You Jia, Gu Bin, Yuan Ding, Tang Jiabei, Huang Xiaoshan, Pu Jiangbo, Wang Yueming Yu Tianyou, Chang Yuan, Fan Xin'an, Feng Chao. Information technology brain-computer interface Visual evoked potential data encoding and decoding

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 7408.1

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