一种多功能单相复费率电表

Multifunctional single-phase multi-rate electricity meter

Abstract

The invention discloses a multifunctional single-phase multi-rate electricity meter which comprises an input module, a display screen, a MCU control center, a metering circuit, a detection circuit, a communication circuit and a reserve power supply. The MCU control center is connected with the metering circuit, the detection circuit, the communication circuit, a date storer, a reserve circuit, the display screen and the input module. The electricity meter is a three-rate 12-tme-frame electronic electric energy meter and has a liquid crystal display function, an RS485 interface is adopted, various operations such as meter reading, programming, timing and the like can be carried out on the electric meter through remote automatic meter reading control and the like, operation processing is carried out through an SH79F32 single chip microcomputer, the unfavorable conditions of voltage shortage, electric leakage and the like of the electricity meter are fed back in time, and dual power supplies are adopted for supplying power, so that the multifunctional single-phase multi-rate electricity meter has the advantages of being high in integration degree, having various functions and being stable in performance, and can save manpower and material resources greatly.
本发明公开了一种多功能单相复费率电表,包括输入模块、显示屏、MCU控制中心、计量电路、检测电路、通讯电路和备用电源,所述MCU控制中心分别连接计量电路、检测电路、通讯电路、存数器、备用电路、显示屏和输入模块。本发明电表为三费率、12时段电子式电能表,具液晶显示,采用RS485接口,使用远程自动抄表控制等即可以对电表进行各种操作,包括抄表、编程、校时等,通过SH79F32单片机进行各项操作处理,对电表欠压、漏电等不良情况及时反馈,而且采用双电源供电,使得本新型电表具有集成度高、功能多样、性能稳定的优点,而且能够节省大量的人力物力。

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