轨道交通列车音频环路乘客助听系统应用研究
尹崇宏1贾涛1刘迪2杜志强1霍长凡1李志1
Study on the Application of Audio Induction Loop Assistive Listening Systemin Urban Rail Transit
YIN ChonghongJIA TaoLIU DiDU ZhiqiangHUO ChangfanLI Zhi
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作者信息:1.中车青岛四方车辆研究所有限公司，266031，青岛；
2.中车长春轨道客车股份有限公司，130062，长春
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Affiliation:CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd., 266031, Qingdao, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.09.038
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中图分类号/CLCN:U270.38+2
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栏目/Col:研究报告
摘要:
为提高助听器使用者收听语言的清晰度，助听系统被广泛应用在包括轨道交通列车在内的各种公共场合。目前应用最广泛的助听系统为音频感应环路系统，其基本原理是利用感应线圈环路为覆盖区域内的助听器提供磁场信号，再通过助听器中的T型线圈将磁场信号转换得到声音信号。介绍了音频感应环路系统在轨道交通列车中的应用情况，并针对轨道交通列车实际情况，对助听系统设计布置中的车体结构、金属干扰、功率匹配等影响因素进行了研究。介绍了轨道交通列车乘客助听系统的测试标准和测试方法。
Abstracts:
In order to improve the speech clarity of assistive listening device users, assistive listening system is widely applied in various public places, including rail transit vehicles. At present, the most widely used assistive listening system is audio induction loop system, of which the basic principle is to use the induction loop to provide magnetic field for assistive listening devices in covered area, and then assistive listening devices can convert the magnetic field signal through the T-switch coil to obtain sound signal. Application of audio induction loop system in rail transit trains is introduced. Targeting the actual situation of rail transit trains, study on vehicle structure, metal interference loss, power matching and other issues of assistive listening system design layout is carried out. Reference standards and testing methods of rail transit train assistive listening system are introduced.
引文 / Ref:
尹崇宏，贾涛，刘迪，等.轨道交通列车音频环路乘客助听系统应用研究[J].城市轨道交通研究，2021，24(9):182.
YIN Chonghong，JIA Tao，LIU Di，et al.Study on the application of audio induction loop assistive listening systemin urban rail transit[J].Urban Mass Transit，2021，24(9)：182.
YIN Chonghong，JIA Tao，LIU Di，et al.Study on the application of audio induction loop assistive listening systemin urban rail transit[J].Urban Mass Transit，2021，24(9)：182.
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