Pre-payment time-sharing electric energy meter system for CPU card

Abstract

The invention relates to a prepaid time-sharing electric meter system of a CPU card, which comprises a prepaid electric meter of the CPU card, the CPU card, a key management system of the CPU card, an electric sales point operation system of the CPU card, an electric consumption operation management system of the CPU card and a palm computer; the prepaid electric meter of the CPU card can measure the electricity, receive data from the CPU card and return and write the data to the CPU card; the key management system of the CPU card is responsible to distribute and manage the keys in the CPU card; the electric sales point operation system of the CPU card completes the writing of the data to the CPU card; the electric consumption operation management system of the CPU card runs on the electric sales point operation system of the CPU card and processes and records the acquired electric bill and the management information; the palm computer corrects the time and copies the data. The prepaid time-sharing electric meter system of the invention has the advantages that by the purchase of electricity from the electric sales point operation system of the CPU card, the prepaid electric consumption by the user can be realized; the correctness of the electric billing can be guaranteed by the management of the electric consumption process by the electric consumption operation management system of the CPU card.

Description

technical field [0001] The invention relates to an electric energy metering system, in particular to a CPU card prepaid time-sharing electric energy meter system. Background technique [0002] At present, most of the domestic electricity consumption and industrial electricity consumption are measured by traditional inductive energy meters. The electricity consumption management method is manual meter reading, which records the monthly electricity consumption. This method of energy metering management shows many shortcomings, the most important of which is the difficulty of collecting electricity charges. If the user uses electricity first, it means that the power management department needs to pay the electricity fee in advance, and then charge the user for the electricity used. However, due to various reasons, it is currently difficult to collect the electricity fee on time, and there are even a large number of situations where the electricity fee cannot be received. The p...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the domestic electricity consumption and industrial electricity consumption are measured by traditional inductive energy meters. The electricity consumption management method is manual meter reading, which records the monthly electricity consumption. This method of energy metering management shows many shortcomings, the most important one is the difficulty of collecting electricity charges

If the user uses electricity first, it means that the power management department needs to pay the electricity fee in advance, and then charge the user for the electricity used. However, due to various reasons, it is currently difficult to collect the electricity fee on time, and there are even a large number of situations where the electricity fee cannot be received. The power management department has caused huge economic losses, and the repeated calls for payment of electricity bills have also greatly wasted manpower and material resources

In addition, for electricity thieves, due to their own principles and structures, traditional electric energy meters cannot prevent electricity theft, resulting in further losses in electricity bills

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