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Device for scanning the division mark of a mechanical roller-type counter, for any type of counter

A counting mechanism and counter technology, which is applied to counters with additional devices, electric devices, counting mechanisms/items, etc., can solve the problems of digital rollers with error reading, increased rotational friction, and sensitivity to magnetic effects, etc.

Inactive Publication Date: 2013-12-04
HENGSTLER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this known reading technique is that it is particularly susceptible to contamination and moisture and does not work precisely
Due to pattern recognition, it is quite difficult to analyze and process the signal appearing in the CCD in such a way that one can recognize which number has just passed on which number roller.
This case has another disadvantage: there is considerable processing time, so this technique cannot be used for fast-running counters
[0010] The disadvantage of this device is that an external power supply must be used to read the resulting capacitor
Another disadvantage: the reading process is particularly sensitive to moisture and dirt and is also inaccurate, since capacitance detection is performed in the picofarad range, which leads to rather inaccurate calculation results
[0011] In addition, the capacitance is also related to the mechanical dimensions of the number roller and its distance from the corresponding plate, which can lead to the following results: for example, the angular position of the number roller axis compared to the fixed position of the corresponding plate will lead to inaccurate estimation of the capacitor. , read with errors
[0012] In addition, the same disadvantage is present in the DE100 27 647B4, since capacitive reading is also performed there
[0013] According to the subject matter of EP 0 024 647 A1, an inductive reading of a roller counting mechanism is known, but still has the disadvantage that it is sensitive to magnetic influences
The following problems often arise in such counters: the counting mechanism is arranged in the range of strong electric lines, the magnetic coupling of the electromagnetic field with the roller counting mechanism described here leads to erroneous reading of the number rollers
[0014] Since the inductively readable roller counting mechanism is directly mechanically coupled to the rotation axis of each number roller, it will disadvantageously increase the internal rotational friction

Method used

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  • Device for scanning the division mark of a mechanical roller-type counter, for any type of counter
  • Device for scanning the division mark of a mechanical roller-type counter, for any type of counter
  • Device for scanning the division mark of a mechanical roller-type counter, for any type of counter

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Experimental program
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Effect test

Embodiment Construction

[0084] exist figure 1 and 3 shows generally a mechanical roller counting mechanism 1 comprising a plurality of numbered rollers 2 which are rotated on a common axis of rotation 4 by a step drive not shown in the figure be driven.

[0085] Such as image 3 As shown, each number roller 2 is provided with numbers 3 distributed on the circumference, and these numbers enable an optical / visual readout of the counting mechanism 1 .

[0086] The presence of the numeral 3 or the symbol is of course not necessary for a purely electronic reading of the counting mechanism. They can be omitted in this case.

[0087] Each number roller 2 is substantially designed as a cylindrical hollow body and forms an inner space 5 which is open at one end, so that an inner peripheral surface 7 emerges from the inner space.

[0088] According to the present invention, a plurality of transponders 6 are arranged according to a certain interval. figure 2 It is arranged on the inner side of the periph...

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PUM

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Abstract

The invention relates to a device for scanning the division mark of a mechanical roller-type counter (1), for any type of counter, comprising a number of rotatably driven ciphering rollers (2), each ciphering roller carrying a number of digits (3) or symbols that are distributed homogeneously over the circumference and can be detected and evaluated with a fixed reading device arranged opposite. Said device is characterised in that at least one transponder (6) is associated with each digit (3) or each symbol in the respective ciphering roller (2) of the roller-type counter (1). An RFID antenna field (15) is located opposite the transponder, at a small distance therefrom, said field being controlled by a circuit in such a way that a ciphering roller of the roller-type counter (1) can be read respectively by an antenna (16, 17, 18) of the RFID antenna field (15).

Description

technical field [0001] The present invention relates to a device for scanning the graduated markings of mechanical roller counting mechanisms in various types of counters. Background technique [0002] This prior art is known, for example, by the subject matter of DE 197 19 459 A1, in which a light-sensitive matrix sensor is used for reading the graduation marks of a mechanical roller counting mechanism, which sensor is especially designed as a CCD array , and installed as an accessory to a conventional counter. The prerequisite here is that a light-transmissive window is accessible from the outside, so that the CCD array can be attached to the window from the outside. [0003] By corresponding exposure / illumination of the rotating digital roller, a corresponding signal can be received from the installed CCD field and processed. The disadvantage of this known reading technique is that it is particularly susceptible to contamination and moisture and works imprecisely. Due ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077G06K7/00G06M1/27G06M1/00G01F1/00G01F15/00G06M3/00G01D5/00G01B7/00G01R11/16G01C22/00
CPCG06K7/10861G06K7/0008Y04S20/50Y02B90/247G01D4/008G01F15/07G06K7/1095G01F15/063G06K7/10316G06M1/27Y02B90/20Y04S20/30
Inventor H·戴希迈尔F·利伯曼N·霍夫曼J·卢特默
Owner HENGSTLER GMBH
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