该文设计的淋浴节水控制器,可根据消费者实际的洗浴时间长短计时收费,实现节能节水.采用RC500作为IC卡操作模块.经485接口与微机进行实时通信.采用先扣钱后供水的消费模式.定时收费,费率可通过软件设置.在空闲模式下,控制器显示当前时间;在淋浴过程中,显示消费金额及卡中余额,并可以通过红外传感器,根据需要暂停出水及计费.该控制器具有运行稳定、体积小、成本低、使用方便等特点.可应用于浴室、公寓、开水房、洗衣房等水龙头流水的场合.%Water-saving controller of bathing was designed in this paper, charges consumers for bathing according to the actual time of bathing, from which power-saving and water-saving can be achieved.The controller, employing RC500 to read and write IC card, can communicate with PC in real time with RS485 interface.Under the “Charging first then supplying water” mode, consumers are charged according to bathing time and consuming rate which can be set through PC software.In idle mode, the controller displays time information.During bathing, controller, displaying consuming fee and card balance, can pause charge and supply water with the help of infrared sensor.The controller has a lot of advantages such as stable running, small volume, low cost, easy operating and so on, which can be used in bathrooms, student hostel, boiling-water room, laundry room and other places where water faucet is employed.
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