Instrument coding print wheel apparatus and coding method

A coding and character wheel technology, which is applied in the counter photoelectric coding character wheel device structure and coding field, can solve the problems of strict production process requirements, poor product stability, poor uniformity, etc., and achieve low production process requirements, stable and reliable products, and reduce The effect of maintenance

Inactive Publication Date: 2012-08-08
昆明佳晓自来水工程技术股份有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small number of codes, low resolution or poor uniformity generated by the photoelectric coding character wheel rotating once, it is easy to produce reading error events when the counter character wheel is linked to carry.
For example: when the water consumption of the water meter is transitioning from 199 to 200, it is very likely that the word wheel cannot be carried out completely synchronously when the word wheel is carried, and the misreading is 299 or 100
causing electronic reading errors
In recent years, high-resolution and uniform-angle coding wheel devices have appeared, but the encoders used are too complicated, the cost is too high, the production process is strict, and the product stability is poor

Method used

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  • Instrument coding print wheel apparatus and coding method
  • Instrument coding print wheel apparatus and coding method
  • Instrument coding print wheel apparatus and coding method

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Embodiment Construction

[0020] The following describes a meter encoding character wheel device and encoding method using the present invention in conjunction with the accompanying drawings.

[0021] Such as figure 1 The instrument coding character wheel device shown includes a light emitting board 1, a light receiving board 2, a decoding circuit board 3, a coding character wheel 4 and a character wheel shaft 5; The two sides are fixed on the decoding circuit board 3.

[0022] Such as figure 2 As shown, the code wheel 4 includes a circular code wheel 42 centered on the character wheel axis 41 and a number end surface 43 arranged around the edge of the circular code wheel 42 . On the digital end face 43 are evenly distributed 10 manual-readable digital characters 45 from '0' to '9'. 20 driven carry teeth 44 are distributed on one side of the digital end face, and 2 active carry teeth 47 are distributed on the other side of the digital end face, and three equal-radius arcs are set on the circular co...

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Abstract

The invention discloses an instrument coding print wheel apparatus and coding method. The apparatus comprises a light emitting panel (1), a light receiving plate (2), a decoding circuit board (3), a coding print wheel (4) and a print wheel shaft (5). According to the invention, data can be read both by manual work and electronic means, an electronic reading process can solve a misreading problem generated by the print wheel in a linkage carry process, and the electronic reading exactly matches a manual reading.

Description

technical field [0001] The invention relates to an instrument encoding character wheel device and an encoding method thereof, in particular to the technical field of the structure and encoding method of a counter photoelectric encoding character wheel device in an intelligent water meter and an intelligent gas meter. Background technique [0002] The absolute angle encoding technology based on optoelectronics has been gradually applied to related measuring instruments such as remote water meters and remote gas meters. Through the photoelectric coding technology of the character wheel, the manual reading on the circumferential end surface of the character wheel is converted into a photoelectric signal code, and then decoded. converted to electronic readings. However, due to the small number of codes, low resolution or poor uniformity generated by the photoelectric coding character wheel rotating once, it is easy to cause reading errors when the counter character wheel is link...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06M1/272
Inventor 费敏何俊钢
Owner 昆明佳晓自来水工程技术股份有限公司
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