国产精品青青草视频_成人精品日韩一区二区_蜜美杏番号在线观看_日韩欧美国产免费看片_2020亚洲а∨天堂在线_熟睡突然进入系列中文字幕_国产精品店jizz视频_在线成人午夜性毛片免费_王小曼与门卫老冯全文阅读_色婷婷日韩无码视频

Prepaid IC water meter card, now every household will use, there are many kinds of water meters, water meters according to use can be divided into civil water meters and industrial water meters. According to the pressure can be divided into ordinary water meter and high pressure water meter. Meter reading system is divided into wireless and wired meter reading two. According to whether the counter is immersed in water to distinguish, divided into wet water meter, dry water meter, liquid sealed water meter. The following is a small series to introduce to you what features of prepaid IC water meter card.

The prepaid IC water meter card can not only be used to measure the cold water flow in the pipeline, but also has the function of automatic charging. User the water to the management department, management department to write purchasing amounts into the IC card, the user will input for the water meter IC card, after the water meter will automatically open the valve of water supply, in the process of water users, microcomputer automatic subtract the residual quantity of water meter, the purchased water and exhausted, water meter will automatically close the valve, the user needs to open the door again to buy water to supply water valve. The advantage is that the water fee income from the original staff door to door meter reading charges for users to pay their own business. The contradiction between the user and the meter reader is solved.