Pre-purchased power controller

Abstract

The invention discloses a pre-purchased power controller, which is characterized in that an MCU microprocessor is arranged, the peripheral devices of the MCU microprocessor comprise a signal conditioning module, a data memory module, a clock chip, a non-contact IC card reading and writing module, a liquid crystal display module, a power supply and cutoff executing module, a cell phone communication module, an infrared communication module, a multi-way switch, an RS 485 communication interface, a pulse acquisition interface and a key module. The invention can realize automatic meter reading and power fare calculation, can give alarm or supply and cut off power according to the remaining sum of the prepaid power fare, can communicate, send alarm information by using cell phone short messages and conduct grid monitoring, can modify parameters through infrared, and has the function of accepting the non-contact IC card recharge operation.

Description

technical field [0001] The invention relates to a pre-purchase electricity controller, which can be seamlessly integrated into the existing power system to realize the functions of power grid monitoring and prepayment, and belongs to the field of power control equipment. Background technique [0002] The traditional electricity consumption mode is "consume first and then pay". The power supply enterprises must first pay the electricity fee to the power generation department and then charge users. Pre-order electric system. [0003] At present, the pre-purchased electricity system is only promoted in the civil electricity field in the form of a prepaid electricity meter, and most of the pre-purchased electricity systems use "electricity cards" to purchase electricity. "Electricity cards" have developed from ordinary contact IC cards to encrypted contact IC cards. From card to non-contact IC card, although the security of the electric card is increasing and the capacity is ex...

AI Technical Summary

Problems solved by technology

[0003] At present, the pre-purchased electricity system is only promoted in the civil electricity field in the form of a prepaid electricity meter, and most of the pre-purchased electricity systems use "electricity cards" to purchase electricity. "Electricity cards" have developed from ordinary contact IC cards to encrypted contact IC cards. From the card to the non-contact IC card, although the security of the electric card is increasing and the capacity is expanding, the electric card type electric energy meter terminal lacks real-time monitoring. Once an abnormal situation occurs at the electric energy meter terminal, the user cannot get the alarm information in time

For example, when the balance is insufficient, the alarm action issued by the terminal of the electric energy meter is usually the sound and light alarm of the electric bell and the alarm lamp. Si

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