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Device and method for reading mechanical counters

A technology of mechanical counters and reading devices, applied in measuring devices, instruments, volume measurement, etc., can solve problems such as large number of optical fiber probes and optical fibers, potential safety hazards, and complicated connections, so as to shorten reading time, save costs, and optimize connections structure effect

Inactive Publication Date: 2018-10-02
CENTURY OPTICOMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a mechanical counter reading device and method, which is used to solve the problems in the prior art that the number of optical fiber probes and optical fibers is large, the connection is complicated, and there are potential safety hazards

Method used

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  • Device and method for reading mechanical counters
  • Device and method for reading mechanical counters
  • Device and method for reading mechanical counters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A reading device for a mechanical counter, the reading device is used to read the reading of the mechanical counter, the mechanical counter has a plurality of character wheel discs 1, and the character wheel discs 1 are provided with 0 to 90 points at intervals of 36 degrees. four reading scales, four equally spaced coding holes 2 are arranged in the middle of each corresponding sector of the reading scale on the character wheel disc 1 along the direction of its center, and the reading device includes a light-emitting / light-detecting probe 4, Light emitting / detecting device 8, light splitter / combiner 11 and signal processor 9,

[0039] The light-emitting device 7 is correspondingly connected to the light-emitting probe 3 through the beam splitter 10, the light-emitting probe 3 is arranged on one side of the character wheel disk 1, and the light detection probe 4 is correspondingly arranged on the character wheel disk 1 on the other side, it is suitable for making the co...

Embodiment 2

[0058] see Image 6 , is the reading flowchart of mechanical counter of the present invention, comprises:

[0059] Step S501, sequentially controlling the optical signal output to one side of the character wheel disc to be in the ON state;

[0060] Among them, the signal processor can sequentially control the optical signal output to one side of a character wheel disc to be in the on state from low to high or from high to low (by switching the light-emitting port); The signals are all off. When a part of the coding hole corresponding to the reading scale of the character wheel disc is a through hole, it can just pass through the through hole of the character wheel disc and output a corresponding optical signal.

[0061] Step S502, if and only when the optical signal corresponding to one of the character wheel discs is on, detect the optical signal output by the character wheel disc;

[0062] Specifically, the optical signal output by some through holes of the character whee...

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Abstract

The present invention provides a mechanical counter reading device and method. A mechanical counter has a plurality of print wheel discs, ten reading scales from 0 to 9 are arranged at the angle of 360 degrees at regular intervals on the each print wheel disc, and four evenly spaced encoding holes are arranged at the middle part of a sector corresponding to each reading scale of each print wheel disc along the direction of the center of circle. A luminescent device is correspondingly connected with a luminescent probe through a splitter, the luminescent probe is arranged at one side of the print wheel discs, and an optical detection probe is correspondingly arranged at the other side of the print wheel discs, so that it is suitable for allowing the encoding holes to transmit optical signals when the print wheel discs are rotating; and the optical detection probe sends the received optical signals to an optical detection device, the optical detection device in a signal processor converts the optical signals to corresponding electric signals, the signal processor identifies binary codes according to the received electric signals corresponding to the encoding holes, and the reading scales of the print wheel discs are read in order to combine and complete the reading and identification of the mechanical counter. According to the invention, the connection structure is optimized, and the encoding fault-tolerant and anti-misoperation capability and the reading efficiency are improved.

Description

technical field [0001] The invention relates to a mechanical counter reading device, in particular to a mechanical counter reading device and method for water supply and gas meters. Background technique [0002] The existing optical fiber direct reading technology solutions for counting meters are divided into two categories, one is to directly read the base number of the counting meter, and the other is to calculate the high-order reading by counting the number of rotations of the lowest digit wheel disc. The biggest problem with the latter type of scheme is that once the reading device loses power or malfunctions (such as abnormal software), it will cause the meter count to be missed, and it is necessary to send someone to the scene to read the base number. Calibration is required to start reading correctly again, and the maintenance workload and cost are high. The former type of scheme is relatively perfect, but most of the existing technical schemes adopt the power supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/347G01F15/07
CPCG01D5/34715G01D5/3473G01F15/07
Inventor 陈李
Owner CENTURY OPTICOMM CO LTD