Boiler liquid level detection method and system

The invention discloses a boiler liquid level detection method and system, and relates to a boiler liquid level detection method which comprises the following steps: S11, acquiring a picture which isshot by a camera device and is related to a boiler liquid level sight glass; s12, comparing the obtained picture with a pre-stored picture, and if the comparison is not successful, obtaining a signalthat the boiler has no liquid level; if the comparison is successful, executing the step S13; and S13, outputting a liquid level signal of the boiler, quantizing the output liquid level signal into ananalog quantity signal, and providing a water level corresponding to the analog quantity signal for the boiler according to the analog quantity signal. According to the invention, accurate detectionof the liquid level signal is realized, and the detection result is real and reliable. 本发明公开了一种锅炉液位检测方法及系统，其中涉及的一种锅炉液位检测方法，包括步骤：S11.获取摄像装置拍摄的与锅炉液位视镜相关的图片；S12.将所述获取到的图片与预先存储的图片进行对比，若对比不成功，则得到锅炉无液位的信号；若对比成功，则执行步骤S13；S13.输出锅炉有液位的信号