本方案可用来监测房间内粉尘,烟雾等,也可以用作空气净化和空调内部的净化检测。应用范围包括设备除尘设备、空气净化设备、除尘机器人、大气测量、烟气测量及工业锅炉、窑炉、化工厂排烟测量等领域,可以检测烟颗粒,花粉孢子等颗粒,即使是粉尘浓度较低的区域也能检测出来,不受外部气流影响。也可以用于各种布袋除尘器的破损检测及各种类型除尘器除尘效率的测量,为这些领域的自动化控制提供可靠的信号。
1、硬件方案
由灰尘传感器,单片机,电源电路,LCD显示,数据通讯线路组成,其中灰尘传感器采用夏普公司的GP2Y1010AU0F,经过单片机对信号进行采集,计算,处理后,将PM2.5数据显示在LCD显示屏上,也可以通过串口发送到PC。其大体框图如下。
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图1 PM2.5检查硬件原理图
2、检查方法
(1)灰尘和烟的判别方法
从输出电平的大小的变化及输出的区别,作如下说明。
一般,香烟的烟是细微粒子,密度高,会扩散式的大范围漂移。与此相比,灰尘是一个一个大颗粒,密度低,断断续续式的进入灰尘传感器的检出领域。
从输出来看,烟是连续的表现出较高的输出电压,灰尘是间隔的表现出较高的输出电压。因此,根据传感器的输出电压值在时间上的推移向微机软件的读取,是否有尘、是否有烟、是否有灰尘,不管是哪种状态,以及空气污染的程度有多少,都可以进行检出。
关于烟的检出,判定值相当于香烟的检出物,按如下表示。
可以检出的范围(输出电压可变范围(V))=输出电压范围:VoH(v)-无尘时输出电压Voc(V)。
将此换算成粉尘浓度:
检出粉尘浓度范围( )=检出可能范围(输出电压可变范围(V))/检出浓度K(V/(0.1 ))。
烟检出的情况下,其判定值如下:
判定值=检出浓度( )/10 *K(V/0.1 )+无尘时输出电压(V)。
粉尘的检出是在规定时间内,在某一输出电压变化的标准之上,标记输出的值,从而判断有没有粉尘。
判断粉尘浓度主要通过输出的电压变化量进行判断,输出变化量 =当前测量值V- 无尘时 。
为了防止大颗粒的灰尘或者如线一般的纤维灰尘进入灰尘传感器或积聚于其内部,需要在灰尘通过的洞口处装上滤网,不要对其进行拆装和清洗,否则会使产品的光学方面的特性发生变化,无法满足原来的特性要求。通过此方法,可以避免将所测烟雾值或者PM2.5的值大小与传感器镜头脏相混淆。
(2)如何确定和更新无尘电压:
无尘输出电压是检出是否有粉尘,烟雾的判断基准。无尘输出电压受发光二极管,传感器内部灰尘以及周围环境的温度影响,一般当LED输出降低时,无尘输出电压也会降低;感应器内部有灰尘附着时,无尘电压将上升。
系统启动时,首先进行无尘电压检测。启动净化系统时,将检测到的电压和设定的无尘电压相比较,如果检测电压小于设定的无尘电压,则将检测电压设为最新的无尘电压。如果一段时间内,输出电压没有变化,或者在一个小范围内变化,基本上把这个值作为无尘电压来更新。输出电压变得更低时,则将此值作为无尘电压来更新。
图2是输出电压与温度的关系图
![](data:image/png;base64,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)
图2 输出电压与温度之间的关系
图3是输出电压与粉尘浓度的关系图
![](data:image/png;base64,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)
图3 输出电压与粉尘浓度之间的关系
(3)软件设计流程
![](data:image/png;base64,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)
图4 软件设计流程图
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