针对双容水箱控制系统，提出了采用实时图像处理的方法来获取水箱液位高度。
For the double-holding water tank control system, we can get the height of the water of the double-holding water tank through real-time image processing.
介绍了反电动势过零位置检测的原理及实现方法，并采用了数字式转速、电流双闭环控制。
One kind of sensorless control system for brushless DC motor based on DSP was introduced and the principle of back-EMF zero-crossing detection and realization method was discussed in detail.
采用力控5.0版组态软件，对整个液位控制系统进行组态，构成控制精度高，显示直观的双容液位系统。
The configuration software of ForeControl V5.0 can be used to configuration, structure a double-tank level control system which is high-precision and intuitionistic display.
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