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音频生命探测仪音频生命探测仪应用了声波及震动波的原理,采用先进的微电子处理器和声音/振动传感器,进行全方位的振动信息收集,可探测以空气为载体的各种声波和以其它媒体为载体的振动,并将非目标的噪音波和其它背景干扰波过滤,进而迅速确定被困者的位置。高灵敏度的音频生命探测仪采用两级放大技术,探头内置频率放大器,接收频率范围为1~4000Hz,主机收到目标信号后再次升级放大。这样,它通过探测地下微弱的诸如被困者呻吟、呼喊、爬动、敲打等产生的音频声波和振动波,就可以判断生命是否存在。音频生命探测仪是一套以人机交互为基础的探测系统,包括信号的检测、监听、选取、储存和处理等几个方面。在研制过程中的关键技术包括:高灵敏度传感器的研制;通过对声波和震动波数理模型的研究确定信号有效性的判据和有效信号源位置的判定。由于音频生命探测仪是一种被动接收音频信号和振动信号的仪器,救援时需要在废墟中寻找空隙伸入探头,容易受到现场噪音的影响,探测速度较慢。雷达生命探测仪雷达生命探测仪是融合雷达技术、生物医学工程技术于一体的生命探测设备。它主要利用电磁波的反射原理制成,通过检测人体生命活动所引起的各种微动,从这些微动中得到呼吸、心跳的有关信息,从而辨识有无生命。雷达生命探测仪是目前世界上最先进的生命探测仪,它主动探测的方式使其不易受到温度、湿度、噪音、现场地形等因素的影响,电磁信号连续发射机制更增加了其区域性侦测的功能。超宽谱雷达生命探测仪是该类型中最先进的一种。它的穿透能力强,能探测到被埋生命体的呼吸、体动等生命特征,并能精确测量被埋生命体的距离深度,具有强的抗干扰能力,不受环境温度、热物体和声音干扰的影响,具有广泛的应用前景。超宽谱雷达生命探测仪具有很大的相对带宽(信号的带宽与中心频率之比),一般大于25%,检验人体生命参数是以脉冲形式的微波束照射人体,由于人体生命活动(呼吸、心跳、肠蠕动等)的存在,使得被人体反射后的回波脉冲序列的重复周期发生变化。如果对经人体反射后的回波脉冲序列进行解调、积分、放大、滤波等处理并输入计算机进行数据处理和分析,就可以得到与被测人体生命特征相关的参数。超宽谱雷达生命探测仪用于震区生命探测具有穿透力强、作用距离精确、抗干扰能力强、多目标探测能力强、探测灵敏度高等优点,探测距离可达30~50m,穿透实体砖墙厚度可达2m以上,可隔着几间房探测到人,并具有人体自动识别功能,在生命探测领域拥有广泛的应用前景。与红外生命探测仪、音频生命探测仪相比更实用,因此成为研究的热点。
频生命探测仪和雷达生命探测仪的区别:
生命探测仪 音频生命探测仪华仪神眼HY2910ST
音频生命探测仪它适合于地震、坍塌、建筑物倒塌下的废墟救援,适用于消防、市政、矿山救护等机构。
生命探测仪 雷达生命探测仪华仪神眼HY2820JC
雷达生命探测仪用于海巡署、海关、边界、港口、安检人员可侦测货柜夹层是否有偷渡人员
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生命探测仪 视频生命探测仪华仪神眼HY2813JC
视频生命探测仪适合于地震、坍塌、建筑物倒塌下的废墟救援,适用于消防、市政、矿山救护等机构。
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