Analysis of Electromagnetic Coupling Characteristics of Balise Transmission System Based on Digital Twin

被引：9

作者：

Geng, Qi ^{[1
,2
]}

Wen, Yinghong ^{[1
,3
]}

Zhang, Dan ^{[1
,2
]}

Xiao, Jianjun ^{[1
,2
]}

Zhu, Yun ^{[1
,2
]}

Zhu, Linfu ^{[4
]}

机构：

[1] Beijing Jiaotong Univ, Inst Electromagnet Compatibil, Beijing 100044, Peoples R China

[2] Beijing Engn Res Ctr EMC & GNSS Technol Rail Tran, Beijing 100044, Peoples R China

[3] Beijing Jiaotong Univ, Frontiers Sci Ctr Smart High Speed Railway Syst, Beijing 100044, Peoples R China

[4] China Acad Railway Sci Corp Ltd, Stand & Metrol Res Inst, Beijing 100044, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 13期

基金：

中国国家自然科学基金;

关键词：

balise transmission system; digital twin; electromagnetic coupling; quantitative evaluation;

D O I：

10.3390/app11136002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The balise transmission system (BTS) is an automatic identification system for vehicle-ground communication based on radio frequency identification (RFID) technology. The electromagnetic coupling characteristics of BTS have a very important effect on the transmission quality of the uplink telegram signals. However, signal transmission problems of BTS often occur due to unreasonable installation mode or parameter setting. In order to solve these problems, it is necessary to fully discuss the electromagnetic coupling characteristics of the BTS. In this paper, the transmission process of energy and data between the onboard antenna unit and the balise was analyzed using digital twin technology. A high-precision dynamic electromagnetic coupling model of the BTS was established from four aspects of three-dimensional structure, physical properties, behavior patterns, and rule restrictions. Then the accuracy of the model was verified by experiments. Finally, the influence of typical parameters on the uplink signal is calculated and analyzed quantitatively. The results showed that compared with other factors discussed in this paper, the vertical distance and the installation mode had greater effects on the uplink signal. These results can be used to guide the engineering installation and related optimization of the BTS.

引用

页数：23

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