![](https://csdnimg.cn/release/download_crawler_static/87966873/bg5.jpg)
Abstract
We can use micro-controller system using cooling towers to achieve the level of
automation, design a low cost and high practical value of the water tower water level
controller. The system has the water level detection, low water high water level alarm
and automatic functions such as adding water. The design process mainly uses the
sensor technology, single chip technology, optical technology and the weak control
the strong police power technology. Detection system using simple system for
detection of copper needles, resulting in the low and high sensitivity.AT89C2051
SCM system control by using the circuit of signal processing and the use of optical
coupling and weak control relays to achieve strong power to realize automatic control
of water systems.
It can automatically detect the water level, light alarm, all the work without
water cycle, to ensure better surface height is always within the context of its structure
simple, low cost high sensitivity, significant energy is used in various kind of ideal
equipment for high-level liquid storage.
Key words: SCM, Automatic monitoring, Circuit Control