Shooting direct-reading remote-transmission electric meter with seven-segment-code code disc

Abstract

Provided in the invention is a shooting direct-reading remote-transmission electric meter with a seven-segment-code code disc. A PCB (4) is fixed right in front of a seven-segment-codon code disc (3)arranged on an electric meter body (1); and a camera (5), a single-chip microcomputer (7), a memory (8), a communication chip (9), an LED lamp (6) and a power chip (13) are separately arranged on thePCB to realize light supplementing, shooting, image processing, digital identification, and data transmission of the seven-segment-code code disc. A picture shot by the camera of the PCB is processedby the single-chip microcomputer to obtain a binarized black-and-white seven-segment-code digital image; regularization, interference removal, and loss repairing are carried out on the binarized black-and-white seven-segment-code digital image; and then refining and shaping processing is carried out. The electric meter having characteristics of high recognition success rate and accuracy, strong anti-air bubble interference ability and strong anti-dirty interference ability is suitable for wide-range promotion and application.

Description

technical field [0001] The invention relates to the field of electric meters, in particular to a camera direct-reading far-transmission electric meter adopting a seven-segment code word code disc. Background technique [0002] It is known that the electric meter has been widely used as an instrument for measuring electricity consumption, but in the process of using the electric meter, a special person is required to regularly read the electricity consumption of the electric meter on the spot, which wastes a lot of manpower, and because some electric meters Installed in a place where the space is relatively small or there are safety hazards, there will be certain safety hazards when the operator reads the meter; further, with the continuous progress and development of society, more and more intelligent products have entered thousands of households households, bringing great convenience to people's lives "It should be emphasized that due to the large amount of electricity mete...

AI Technical Summary

Problems solved by technology

[0003] However, in practical applications, the existing camera direct-reading remote-transmission ammeters have also exposed some problems. The main problem is that they are very sensitive to the code disc of the ammeter, which can easily lead to a reduction in the recognition success rate and recognition accuracy, and ultimately affect the quality of data collection. Success rate

[0004] The reason for this problem is that the numbers on the code discs of traditional electric meters are composed of arcs, slashes and straight lines, and the printed fonts and sizes of the code discs of each electric meter manufacturer are different. The numbers on the code discs of the electric meter manufacturers cannot match well, so there are no rules to follow, etc.

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