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GB/T 45348-2025: Information technology - Real time locating - Technical specification for sound source locating and imaging system
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| GB/T 45348-2025 | English | 359 |
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Information technology - Real time locating - Technical specification for sound source locating and imaging system
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GB/T 45348-2025
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Basic data | Standard ID | GB/T 45348-2025 (GB/T45348-2025) | | Description (Translated English) | Information technology - Real time locating - Technical specification for sound source locating and imaging system | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L66 | | Classification of International Standard | 35.240.50 | | Word Count Estimation | 18,150 | | Date of Issue | 2025-02-28 | | Date of Implementation | 2025-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45348-2025: Information technology - Real time locating - Technical specification for sound source locating and imaging system
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GB/T 45348-2025 English version. Information technology - Real time locating - Technical specification for sound source locating and imaging system
ICS 35.240.50
CCSL66
National Standard of the People's Republic of China
Information technology real-time positioning
Technical Specifications of Sound Source Localization Imaging System
Released on 2025-02-28
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 System Reference Architecture 2
4.1 General Description 2
4.2 Data Collection Layer 3
4.3 Data Processing Layer 3
4.4 Interaction Layer 4
5 Technical Requirements 4
5.1 Functional Requirements 4
5.2 Performance requirements 5
6 Test Methods 6
6.1 Test conditions 6
6.2 Functional Testing 6
6.3 Performance Testing 7
Appendix A (Informative) Principles of Sound Source Localization and Imaging 10
Appendix B (Informative) Microphone Array Coordinate System Setup Example 11
Appendix C (Informative) System Flowchart 12
Reference 13
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Information Technology Standardization Technical Committee (SAC/TC28).
This document was drafted by. iFLYTEK Co., Ltd., China Electronics Technology Standardization Institute, State Grid Anhui Electric Power Co., Ltd.
Electric Power Research Institute, Institute of Computing Technology, Chinese Academy of Sciences, Hefei Intelligent Voice Innovation Development Co., Ltd., Hangzhou Weiying Software Co., Ltd.
Co., Ltd., China Electric Power Research Institute Co., Ltd., Zhejiang Tidal Power Technology Co., Ltd., Hangzhou Pinbo Technology Co., Ltd., Guoneng Digital Technology Development Co., Ltd.
Beijing Development Co., Ltd., Beijing University of Science and Technology, Hefei Sixiang Zhixin Technology Co., Ltd., Beijing Maiding Aite Technology Co., Ltd., Suzhou Xunxi
Technology Co., Ltd., Antelope Industrial Internet Co., Ltd., Beijing Jiaotong University, Anhui Tingjian Technology Co., Ltd., Chongqing University of Posts and Telecommunications
Tsinghua University, Tsinghua Xunke (Beijing) Technology Co., Ltd., Wuhan University, Zhejiang iFlytek Intelligent Technology Co., Ltd., Institute of Automation, Chinese Academy of Sciences,
Beijing Gas Group Research Institute, Beijing Huakong Zhijia Technology Co., Ltd., Shenzhen Gas Group Co., Ltd., China Electronics Technology Group
The 54th Research Institute of the Group, Shenzhen Bosi High-tech Co., Ltd., Guangdong Zhongchuang Zhijia Scientific Research Co., Ltd., China Southern Power Grid Digital
Power Grid Technology (Guangdong) Co., Ltd., Longyuan Power Group Co., Ltd., China Unicom Intelligent City Research Institute,
Shenzhen Yunliwuli Technology Co., Ltd., Zhengzhou Lianrui Electronic Technology Co., Ltd., Hangzhou Zhaohua Electronics Co., Ltd., Beijing Telecom
Planning and Design Institute Co., Ltd., Yangtze River Delta Research Institute of University of Electronic Science and Technology of China (Quzhou), Beijing Xinrui Kechuang Technology Co., Ltd., Shenzhen Quanshunhong
Technology Co., Ltd., Shanghai Thermal Imaging Technology Co., Ltd., Beijing Shengzhi Technology Co., Ltd., Xi'an Lianfeng Xunsheng Information Technology Co., Ltd.
Company, Beijing Disheng Technology Co., Ltd., Changsha Zoomlion Environmental Industry Co., Ltd., Wenzhou Yanchuang Internet of Things Technology Co., Ltd.,
Yibin Tianlong Communication Co., Ltd., Shenzhen Atem Technology Co., Ltd., Hefei Junxin Electronic Technology Co., Ltd., Xianheng Electrical Technology (Hangzhou
Shenzhen) Co., Ltd., Shenzhen Shilian Zhuochuang Technology Co., Ltd., Shenzhen Space-Time Digital Technology Co., Ltd., Shanghai Grubb Technology Co., Ltd.,
Hangzhou Aihua Instrument Co., Ltd., Huanhong Electronics (Kunshan) Co., Ltd., Shanghai Saimingte Technology Co., Ltd., Jiangsu CESI Technology Development Co., Ltd.
company.
The main drafters of this document are. Hu Guoping, Zhang Zhang, Song Jiwei, Wang Wenfeng, Cai Mingqi, Zhang Hui, Yang Haitao, Liu Ying, Yang Jie, Hu Xiaoyu,
Luo Haiyong, Wu Jiangzhao, Song Ruomiao, Geng Li, Liang Qichen, Zhao Fang, Han Shuai, Li Jun, Huang Jiajia, Wang Xiaoyan, Wang Qu, Xu Minglu, Li Sumin, Liu Xiaowei,
Zhou Wei, Gao Ruipeng, Wang Wei, Nie Wendi, Qiu Youbin, Deng Yuejin, Gong Tao, Gao Wei, Che Ming, Liu Jia, Zhang Hao, Li Shuang, Li Qijia, Huang Weibin,
Zeng Qiaodi, Zhang Guozhen, Liu Qi, Zhang Min, Xiao Yan, Chai Yujia, Cao Zuyang, Guo Bingfeng, Chen Zhuming, Wang Zhengsheng, Shi Chunlei, Xu Yi, Chen Xiaoliang,
Li Xiaoqiang, Huang Yiwei, Yu Xiaoyue, Lin Lingpeng, Zhou Bo, Sun Zhenpei, Li Penghui, Li Wenguo, Xi Xugang, Zhang Tao, Sun Wenhua, Shen Daoyi, Mao Zhide,
Liu, S., Chen, M., and Zhao, J.L.
Information technology real-time positioning
Technical Specifications of Sound Source Localization Imaging System
1 Scope
This document establishes the system reference architecture of the sound source localization imaging system, specifies the technical requirements, and describes the corresponding test methods.
This document is applicable to the design, development and testing of sound source localization imaging systems.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Sound source locating and imaging system
A software and hardware system used to determine the location of sound sources and display the spatial distribution of the sound field.
Note. For the principle of sound source localization imaging, see Appendix A.
3.2
sound pressure level
The ratio of the measured sound pressure to the reference sound pressure.
Note. The calculation formula for sound pressure level Lp is shown in formula (1).
Lp = 20lg
p0
(1)
Where.
p --- measured sound pressure, in microPa (μPa);
p0 --- sound pressure, the value is 20μPa;
Lp --- sound pressure level, in decibels (dB).
3.3
Microphone arraymicrophonearray
A device consisting of multiple microphones with a certain spatial topology for sampling the spatial characteristics of acoustic signals.
[Source. GB/T 36464.1-2020, 3.23, modified]
3.4
Microphone array coordinate systemmicrophonearraycoordinatesystem
Taking the center of the microphone array (3.3) as the origin, a three-dimensional space is established on the receiving plane of the microphone array (3.3) and its normal direction.
Cartesian coordinate system.
Note. Appendix B gives a method for establishing the microphone array coordinate system.
3.5
Azimuthangle
The horizontal rotation angle of the observed point relative to the positive direction of the x-axis of the microphone array coordinate system (3.4).
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