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    • 3. 发明公开
    • 철도차량용 능동 소음 제거장치 및 방법
    • 主动噪声消除装置和铁路车辆的方法
    • KR1020110066441A
    • 2011-06-17
    • KR1020090123093
    • 2009-12-11
    • 현대로템 주식회사
    • 이용철김동일박승묵차상호
    • G10K11/178B61D37/00
    • G10K11/178G10K2210/1283G10K2210/129G10K2210/3026
    • PURPOSE: An active noise controller for the railway vehicle and a method are provided to enhance the audible rate toward the indoor broadcast of passenger by conspicuously reducing the noise of the passenger room inside of the railway vehicle and at the same time to have effect that the active noise controller for the railway vehicle and the method for improving the smoothness of the passenger room inside are offered. CONSTITUTION: The active noise controller for the railway vehicle includes: a sound collection part(10); a analog-digital converter(20); a broadcasting sound data removing part(30); a opposite phase data generating section(40); a digital-analog converter(50); and a noise removing section(70). The sound collection part collects the sound including the noise and broadcasting sound of the analog type generating in the railway vehicle. The analog-digital converter changes the sound of the analog type which the sound gathering unit collects into digital data. The noise removing section deletes the broadcasting noise in the digital data and the which is analog-digital converted. The opposite phase data having digital data and the anti-phase in which in the anti-phase data generate part, broadcasting sound data is removed is created. The digital-analog converter changes the opposite phase data into the offsetting the negative principle in nature of the analog type. The noise removing section removes the noise of the analog type by outputting offsetting noise of the analog type.
    • 目的:提供铁路车辆的主动噪声控制器和方法,通过显着降低铁路车辆内乘客室的噪音,提高乘客室内广播的听觉速度,同时有效 提供了铁路车辆的主动噪声控制器和提高车内平滑度的方法。 构成:铁路车辆的主动噪声控制器包括:收音部分(10); 模拟数字转换器(20); 广播声音数据去除部(30); 反相数据产生部分(40); 数模转换器(50); 和噪声去除部(70)。 声音收集部分收集包括在铁路车辆中产生的模拟类型的噪声和广播声音的声音。 模拟数字转换器将收集单元收集的模拟类型的声音改变为数字数据。 噪声去除部分删除数字数据中的广播噪声,并进行模拟数字转换。 产生具有数字数据的相位相位数据和反相数据产生部分中的反相,广播声音数据被去除。 数模转换器将相反的相位数据改变为抵消模拟类型的负性原理。 噪声去除部通过输出模拟类型的偏移噪声去除模拟类型的噪声。