Character wheel of electronic remote water meter

Abstract

The invention relates to a character wheel of an electronic remote water meter. The character wheel comprises a character wheel body made of opaque material, a center wheel hole is formed in the center of the character wheel body, a plurality of transmission teeth are installed on the periphery of the outer circle of the character wheel body, the character wheel body is provided with four windows in arc shapes, and five photoelectric sensors are symmetrically installed on two sides of the character wheel body. The character wheel body is provided with the four large windows which are matched with the five photoelectric sensors installed on the two sides of the character wheel body, the rotation angle and the position of the character wheel at present can be accurately judged through a single chip microcomputer system, and therefore the current reading number of the character wheel can be read out accurately.

Description

technical field [0001] The invention relates to a device for an electronic remote transmission water meter, in particular to a character wheel for an electronic remote transmission water meter. Background technique [0002] In recent years, many remote water meter manufacturers have developed a new generation of electronic remote water meters, which include water meter base meter, sampling part and single-chip microcomputer system. The fan-shaped window on the wheel uses single-chip microcomputer technology to judge the position of the character wheel, thus achieving the purpose of measurement. The currently widely used character wheel has a fan-shaped window on the wheel body. The photocell uses an area array light source. The fan-shaped window is blocked by different positions through the rotation of the character wheel, so that the photocell corresponds to different positions on the character wheel, thereby identifying different characters. However, since there is only o...

AI Technical Summary

Problems solved by technology

The currently widely used character wheel has a fan-shaped window on the wheel body. The photocell uses an area array light source. The fan-shaped window is blocked by different positions through the rotation of the character wheel, so that the photocell corresponds to different positions on the character wheel, thereby identifying different characters. However, since there is only one fan-shaped window on the wheel body, and the photocell uses an area array light source, the judgment of the position of the character wheel is prone to deviation, which affects the accuracy of the reading.

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