A method and device for transforming an ordinary electric energy meter into a smart electric meter

Abstract

A method and device for transforming an ordinary electricity meter into a smart meter. The method comprises: fixing a probe connected to a collection terminal and aligning the probe to the window reflecting electrical energy on an ordinary electricity meter; the probe sensing an electrical energy image of the ordinary electricity meter; and the collection terminal reading the electrical energy image from the probe, according to the electrical energy image, determining the direction of power and calculating an energy increase, forward and reverse bases of cumulative energy increase, a time-of-use base and a tiered base, displayed and prepaid control loads, and communicating with an external digital apparatus, so as to accomplish the function of a smart meter. By means of implementing the solutions of the present invention, an ordinary electricity meter can be easily transformed to possess the functions of a smart meter, such as, bidirectional, time-of-use, and tiered metering and accounting, prepayment control, remote control, and output of active power P and voltage U as well as remote signals for access control and switching status, and the like, which is close to the performance of a smart meter. Also, the investment is small, the transformation task is small, and a metering wiring error does not occur, so that the investment can be significantly reduced.

Description

technical field [0001] The invention relates to electric energy metering technology, in particular to a method and a device for transforming a general electric energy meter into an intelligent electric meter. Background technique [0002] The smart grid requires the energy meter to have the functions of a smart meter, that is, two-way, time-sharing, step metering, prepayment control and remote control, etc. However, a large number of electric energy meters installed on site are mechanical electric energy meters and a small amount of pulse electric energy meters. If the mechanical meter or pulse meter is replaced with a smart meter, it will not only require a large investment and cause a lot of waste of manpower and material resources, which is contrary to the construction of a conservation-minded society, but also requires a large amount of work to replace the meter, which is prone to metering and wiring errors. [0003] Therefore, the technical problem to be solved is: the...

AI Technical Summary

Problems solved by technology

If the mechanical meter or pulse meter is replaced with a smart meter, not only the investment will be large, but it will cause a lot of waste of manpower and material resources, which is contrary to the construction of a conservation-oriented society. Moreover, the amount of work required to replace the meter is large, and metering wiring errors are prone to occur.

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