摘要
目的研制一台集快速听力损伤检测及噪声习服功能于一体的便携装备,以预防强噪声给外场人员和飞行人员带来的听力损伤。方法采用基于ARM920T内核的Mini2440为主控核心,采用UCOS嵌入式最小操作系统进行任务调度,通过ADS软件来编写开发板程序,产生噪声习服信号和测试信号,并自动完成听力损伤自动检测。结果仪器能够按照GBZ49-2014《职业性噪声聋的诊断》要求输出稳定频率和强度的音频信号,实现听力损伤自动筛查以及特定背景的噪声习服功能。结论该检测仪能够按照设计要求实现听力损伤自动筛查和噪声习服的功能,整机具有稳定性好,扩展性强、界面友好等特点。
Objective To develop a portable and quick detector for noise-induced hearing loss and sound conditioning which issuitable for airman and ground crew.Methods In the present research,the Mini2440with ARM920T core was used as a main controlboard,and the UCOS minimum embedded system was used as multitask scheduler.Meanwhile,by using ADS software,the detectorcould write the development board program,generate the noise acquisition signal and test signal,and automatically complete theautomatic hearing damage detection.Results The system could produce audio signals of stable frequency and intensity accordingto Diagnosis of occupational noise-induced deafness(GBZ49-2014),and realize automatic screening of hearing damage and thefunction of noise acquisition in a certain background.Conclusion The detector works well and has the characteristics of goodstability,strong expansibility and friendly interface.
作者
季家红
余文斌
郭军涛
JI Jiahong;YU Wenbin;GUO Juntao(Department of Medical Engineering, General Hospital of Air Force, Beijing 100142, China;Institute of Aviation Medicine of Air Force, Beijing 100142, China)
出处
《中国医疗设备》
2017年第10期30-32,51,共4页
China Medical Devices
关键词
噪声习服
噪声预暴露
听力损伤
嵌入式系统
听力计
sound conditioning
noise preconditioning
hearing loss
embedded system
audiometer
