一种漏气监测系统的设计与实现-中国医疗设备.PDFVIP

论 著 RESEARCH WORK 一种漏气监测系统的设计与实现 Design and Implementation of Gas Leakage Monitoring System 赵惠军，王波，王亚林 [摘 要] 目的 建立一种漏气监测系统，监控医院“三气”管道和气瓶的气体泄漏情况。方法 利用 海军总医院医学工程科，北京 100048 数字信号处理技术对泄漏所产生的超声波信号进行分析处理和声压级计算，从而实现对泄漏的检 测及泄漏量的估算。结果 医院能有效地实时监控气体泄漏情况，杜绝医疗隐患。结论 该系统性 能可靠，可移植性强，市场前景广阔。 [关键词] 数字信号处理；声压级；气体泄漏；监测系统；高压气瓶 Abstract: Objective To monitor gas leakage of gas pipeline or gas cylinder in hospital, this study developed a gas leakage monitoring system. Methods The digital signal processing technology was adopted to analyze and process the ultrasonic signal produced by leakage and the acoustic pressure level calculation, thus the leakage detection and leakage amount estimation were realized. Results The gas leakage was real­time monitored effectively and the medical risk was prevented. Conclusion This system has stable performance, strong portability and wide market prospects. Key words: digital signal processing; acoustic pressure level; gas leakage; monitoring system; high ZHAO Hui-jun, WANG Bo, pressure gas cylinder WANG Ya-lin Department of Medical Engineering, [中图分类号] TH789 [文献标识码] A Naval General Hospital of PLA, Beijing doi ：10.3969/j.issn.1674­1633.2017.03.006 100048, China [文章编号] 1674-1633(2017)03-0022-04 引言 音并将其转化成电信号，经过放大滤波处理后分为两路， 目前，各医院都有大量的供气管道和高压气瓶，越来 一路送入数字信号处理（Digital Signal Processing ，DSP ） 越多的供气管道和高压气瓶成为了医院医疗活动中不可或 进行相应操作，另一路经过降频能变为可听音。系统原理图， 缺的重要组成部分。如果医疗活动中操作不当或者管道出 见图 1。 现质量缺