The paper presented a BP-PID method to control electronic swell valve of system, then BP-PID controller was designed.
采用BP-PID控制器对系统电子膨胀阀开度进行控制，并设计了BP-PID控制器。
The circulating water heater consists of frame, electronic heater, temperature sensor, flow channel switch, valve, heating controller and other parts.
循环水加热器通常由机身、电子加热器、测温感应器、流路开关装置、出水阀、加热系统控制器等构成。
The controller design method to use for electronic valve was introduced. its hardware and relevant application software were introduced, too.
介绍了一种为电动阀门配套使用的控制器的设计方法，阐述了其硬件组成及相关应用软件的设计思想。
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