基于PL3201的双模式载波预付费电能表设计

Design of the Double Model Type Watt-hour Meter of Power Line Carrier and Prepayment Based on PL3201

针对高校学生公寓用电管理的特殊需求,设计了一种基于PL3201芯片,具有载波模式、预付费模式的双模式电能表。详细阐述实现电能表硬件电路设计的具体方案和双模式工作实现原理。学生开户后采用IC卡载波通道下装购电,开户前、销户后载波抄表,按照后付费模式工作。同时增加了功率控制、按时熄灯/开灯等特有功能,满足了高校学生用电的特殊需求,并得到了批量实际应用。

Aiming at the special request about the management of the electricity consumption in the university dormitories, a plan with the double model type watt-hour meter of power line carrier and pre-payment, which included the PL3201 chip, is designed, the specific schemes for implementing the hardware circuit of the watt-hour meter and tire work principle of tire double model type were described in detail. After the student opened an account, the electric energy was bought or downloaded by IC card and power line carrier. Before opened an account and after closed an ace（rant, the electricial energy metered date was collected and processed by power line carrier, the function of post-payment was realized. Simultanously the unique functions such as overload and schedule were increased. The special demand about the management of the electricity consumption in the university dormitories was satisfied. And it was used largely.