CN104766121A - Counting coded disc - Google Patents
Counting coded disc Download PDFInfo
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- CN104766121A CN104766121A CN201510110540.XA CN201510110540A CN104766121A CN 104766121 A CN104766121 A CN 104766121A CN 201510110540 A CN201510110540 A CN 201510110540A CN 104766121 A CN104766121 A CN 104766121A
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- counting
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Abstract
The invention discloses a counting code disc. The counting code disc comprises a PCB, and the PCB is provided with a first Gray code channel, a second Gray code channel and a third Gray code channel which are connected with a potential brush of a trigger, wherein the first Gray code channel and the second Gray code channel are each provided with multiple counting Gray codes used for counting, and an anti-hopping code used for preventing the potential brush from hopping is arranged between every two adjacent counting Gray codes; the third Gray code channel is located at the inner side of the second Gray code channel and used for serving as a zero signal output label. By adopting the counting code disc, the potential brush can be prevented from missing to brush the Gray codes, and Gray code counting is more accurate.
Description
Technical field
The present invention relates to counter code disc field, in particular a kind of counter code disc.
Background technology
Gray code belongs to Reliability codes, is a kind of coded system of error minimization.Such as, because although natural binary code directly can convert simulating signal to by D/A, in some situation, when being converted to 4 from metric 3, each of binary code all will become, and digital circuit can be made to produce very large peak current pulse.Gray code does not then have this shortcoming, when it changes between adjacent bit, only has one to change.It greatly reduces by a state obscuring to logic during next state.Two interblocks adjacent due to this coding only have a difference, thus in the conversion of the corner displacement amount-digital quantity for direction, when the corner displacement amount generation subtle change in direction is (and when may cause digital quantity to change, Gray code only changes one, more reliable compared with the situation simultaneously changing two or multidigit of encoding with other like this, the possibility of makeing mistakes can be reduced.
In prior art, the counter code disc that adopts is used for detecting or counting more; read counter code disc at scrambler or brushgear and often there will be the phenomenon of jumping brush or leaking brush; namely because brushgear rotating speed is too fast; occur that brushgear bounced certain Gray code; cause the phenomenon of miscount, be unfavorable for the use of Gray code.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of counter code disc, overcome counter code disc in prior art and easily jump the inaccurate technological deficiency of brush counting.
Technical scheme of the present invention is as follows:
A kind of counter code disc, comprise pcb board, described pcb board is provided with the first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel that are connected with the current potential brush of trigger respectively;
Wherein first Gray's code channel and second Gray's code channel being respectively equipped with several counting Gray codes for counting, between two adjacent described counting Gray codes, being also provided with the anti-frame hopping of jumping brush for placing described current potential brush;
Be positioned at inside described second Gray's code channel, for the 3rd Gray's code channel as zero signal output label.
Above-mentioned counter code disc, wherein, described first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel are Copper Foil Gray code channel.
Above-mentioned counter code disc, wherein, the operating potential of described first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel is 3.3V.
Above-mentioned counter code disc, wherein, described trigger is JK flip-flop.
Above-mentioned counter code disc, wherein, the current potential that described counting Gray code connects is greater than current potential that described anti-frame hopping connects or the current potential that described counting Gray code connects and is less than the current potential that described anti-frame hopping connects.
Above-mentioned counter code disc, wherein, the current potential that described anti-frame hopping connects is zero.
Counter code disc provided by the present invention, owing to adopting several counting Gray codes be respectively equipped with on first Gray's code channel and second Gray's code channel for counting, between two adjacent described counting Gray codes, be also provided with the anti-frame hopping of jumping brush for placing described current potential brush; Because anti-frame hopping is contour with counting Gray code, can not beat when current potential brush rotates, thus prevent current potential brush leakage brush Gray code from making gray count more accurate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of counter code disc preferred embodiment in the present invention.
Fig. 2 is the partial schematic diagram of counter code disc preferred embodiment in the present invention.
In figure: 1, first Gray's code channel; 2, second Gray's code channel; 3, the 3rd Gray's code channel; 4, Gray code is counted; 5, anti-frame hopping; 6, pcb board.
Embodiment
The invention provides a kind of counter code disc, for making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to shown in Fig. 1, counter code disc provided by the invention, comprise pcb board 6, described pcb board 6 is provided with 3 circle Gray code channels.What outmost turns was arranged is first Gray's code channel 1, successively, the inner side of first Gray's code channel 1 arranges second Gray's code channel 2 and the 3rd Gray's code channel 3.Described first Gray's code channel 1 and second Gray's code channel 2 for counting, and are connected with trigger respectively, and trigger exports single-chip microcomputer to and carries out calculation process after encoding.Counter code disc of the prior art is only provided with first, second, and third Gray's code channel for counting, and is empty between two adjacent Gray codes in Gray's code channel, does not namely arrange metal Gray code, is generally pcb board 6 clear area.In use, the current potential brush of trigger from one of them Gray code adjacent two Gray codes through later, another Gray code need be got through pcb board 6 clear area and then brush, but when current potential brush turns to another Gray code (i.e. second Gray code) from pcb board 6 clear area, easily there is frame hopping phenomenon.The generation of frame hopping phenomenon can cause counting error, and one or more Gray code brushed less by current potential brush will cause irremediable error to measurement structure.
For overcoming above-mentioned technical matters, as shown in Figure 2, in counter code disc provided by the invention, described pcb board 6 is provided with first Gray's code channel 1, the second Gray's code channel 2 and the 3rd Gray's code channel 3 that are connected with the current potential brush of trigger respectively.Wherein first Gray's code channel 1 and second Gray's code channel 2 are respectively equipped with between the adjacent described counting Gray code 4 of several counting Gray codes 4, two for counting and are also provided with the anti-frame hopping 5 of jumping brush for placing described current potential brush.Gray's code channel that the formation one of described counting Gray code 4 and the complementation of described anti-frame hopping 5 is complete, and described counting Gray code 4 and the contour setting of described anti-frame hopping 5; Mutually isolated by etching counting between described counting Gray code 4 and described anti-frame hopping 5.When having current potential brush through described first and second Gray's code channels, due to counting Gray code 4 and anti-frame hopping 5 complementation, and contour, frame hopping phenomenon can not be there is at current potential brush through out-of-date or leak brush phenomenon, solving the problem that in prior art, gray count is inaccurate.
Concrete, the operating potential of described first Gray's code channel 1, second Gray's code channel 2 and the 3rd Gray's code channel 3 is 3.3V.Use the counting Gray code in the present invention, when described trigger is JK flip-flop, the current potential brush of JK flip-flop is arranged on described counting Gray code center and rotates around described counting Gray code, and the corresponding different Gray's code channel of described current potential brush is provided with different current potential brushes.When current potential brush is through adjacent three Gray codes, when three the adjacent counting Gray codes 4 namely in first Gray's code channel 1 and second Gray's code channel 2 or anti-frame hopping 5.
Such as current potential brush moves on the anti-frame hopping 5 of first Gray's code channel 1 and second Gray's code channel 2, current potential on anti-frame hopping 5 now can be designated as zero, then JK flip-flop record Gray code value transfer in single-chip microcomputer the binary coding saving as 00, current potential brush continues mobile when current potential brush detects a current potential, namely current potential brush moves and has been triggered to counting Gray code 4, such as this counting Gray code 4 is the counting Gray code on first Gray's code channel 1, then JK flip-flop record Gray code value transfer in single-chip microcomputer the binary coding saving as 01, then current potential brush continues mobile, draw different Gray's code values by that analogy, this repeats no more again for existing counting.Difference is, the counting Gray code 4 in first Gray's code channel and second Gray's code channel all can evoked potential brush with current potential, and to design the current potential that anti-frame hopping 5 connects be the Gray code of zero potential, is recorded as sky when current potential brush touches described anti-frame hopping 5.Because anti-frame hopping 5 is contour with counting Gray code 4, can not beat when current potential brush rotates, the frame hopping that can prevent current potential brush from producing because rotating speed is too fast by anti-frame hopping 5 or leakage brush phenomenon, make counter code disc count more accurate.
As another specific embodiment of the present invention, when arranging counting Gray code 4 and the current potential of anti-frame hopping 5, also the current potential that described counting Gray code 4 connects can be greater than current potential that described anti-frame hopping 5 connects or the current potential that described counting Gray code 4 connects and be less than the current potential that described anti-frame hopping 5 connects.If when the current potential of counting Gray code 4 is greater than the current potential of anti-frame hopping 5, be then recorded as sky or zero when current potential brush triggers the electronegative potential of anti-frame hopping 5; When the current potential counting Gray code is less than the current potential of anti-frame hopping 5, when current potential brush triggers the noble potential of anti-frame hopping 5, be then recorded as sky or zero.
Further, the rotation that the beginning second that will add up formula after current potential brush rotates a circle is enclosed also counts, the present invention is being positioned at inside described second Gray's code channel 2, independent of outside first and second Gray's code channels, the 3rd Gray's code channel 3 of the independent circle Gray code channel arranged, for as zero signal output label.Namely the 3rd Gray's code channel 3 has the effect of zero reference, and current potential brush has often turned a circle then can trigger output pulsatile once signal, using the Gray code of the 3rd Gray's code channel 3 as mechanical zero record, measures with the unlimited cumulative sum realizing multi-turn.
Further, in above-mentioned counter code disc, described first Gray's code channel 1, second Gray's code channel 2, the 3rd Gray's code channel 3 are Copper Foil Gray code channel, effectively can transmit current potential, reach and measure effect accurately.
In sum, counter code disc provided by the present invention, count for several counting the anti-frame hopping 5 being also provided with between the adjacent described counting Gray code 4 of Gray codes 4, two and jumping brush for placing described current potential brush owing to adopting to be respectively equipped with on first Gray's code channel 1 and second Gray's code channel 2; Because anti-frame hopping is contour with counting Gray code, can not beat when current potential brush rotates, thus prevent current potential brush leakage brush Gray code from making gray count more accurate.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and such as, all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (6)
1. a counter code disc, is characterized in that, comprises pcb board, and described pcb board is provided with the first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel that are connected with the current potential brush of trigger respectively;
Wherein first Gray's code channel and second Gray's code channel being respectively equipped with several counting Gray codes for counting, between two adjacent described counting Gray codes, being also provided with the anti-frame hopping of jumping brush for placing described current potential brush;
Be positioned at inside described second Gray's code channel, for the 3rd Gray's code channel as zero signal output label.
2. counter code disc according to claim 1, is characterized in that, described first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel are Copper Foil Gray code channel.
3. counter code disc according to claim 1, is characterized in that, the operating potential of described first Gray's code channel, second Gray's code channel and the 3rd Gray's code channel is 3.3V.
4. counter code disc according to claim 1, is characterized in that, described trigger is JK flip-flop.
5. counter code disc according to claim 1, is characterized in that, the current potential that described counting Gray code connects is greater than current potential that described anti-frame hopping connects or the current potential that described counting Gray code connects and is less than the current potential that described anti-frame hopping connects.
6. counter code disc according to claim 1, is characterized in that, the current potential that described anti-frame hopping connects is zero.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110540.XA CN104766121B (en) | 2015-03-13 | 2015-03-13 | A kind of counter code disc |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510110540.XA CN104766121B (en) | 2015-03-13 | 2015-03-13 | A kind of counter code disc |
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| CN104766121A true CN104766121A (en) | 2015-07-08 |
| CN104766121B CN104766121B (en) | 2017-09-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5923718A (en) * | 1996-08-19 | 1999-07-13 | Nec Corporation | Binary counter reading circuit |
| CN1318738A (en) * | 2001-02-18 | 2001-10-24 | 华立集团股份有限公司 | Misread preventing A/D conversion method and device for multiple-place mechanical counter |
| CN1622464A (en) * | 2003-11-27 | 2005-06-01 | 华为技术有限公司 | Method for outputting Gray code count and counter thereof |
| CN201111132Y (en) * | 2007-09-24 | 2008-09-03 | 杭州先锋电子技术有限公司 | Electromechanical type Gray code direct-read accounting device |
| CN204515832U (en) * | 2015-03-13 | 2015-07-29 | 东莞捷荣技术股份有限公司 | A kind of counter code disc |
-
2015
- 2015-03-13 CN CN201510110540.XA patent/CN104766121B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5923718A (en) * | 1996-08-19 | 1999-07-13 | Nec Corporation | Binary counter reading circuit |
| CN1318738A (en) * | 2001-02-18 | 2001-10-24 | 华立集团股份有限公司 | Misread preventing A/D conversion method and device for multiple-place mechanical counter |
| CN1622464A (en) * | 2003-11-27 | 2005-06-01 | 华为技术有限公司 | Method for outputting Gray code count and counter thereof |
| CN201111132Y (en) * | 2007-09-24 | 2008-09-03 | 杭州先锋电子技术有限公司 | Electromechanical type Gray code direct-read accounting device |
| CN204515832U (en) * | 2015-03-13 | 2015-07-29 | 东莞捷荣技术股份有限公司 | A kind of counter code disc |
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| CN104766121B (en) | 2017-09-22 |
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Inventor after: Li Xiangliang Inventor before: Li Xiangji Inventor before: Xie Guangbao Inventor before: Li Peng Inventor before: Xia Wei |
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Effective date of registration: 20150915 Address after: Luohu District Songyuan road Shenzhen City, Guangdong province 518001 75 2 14B Applicant after: Kang Kai Address before: 523879 Xin'an Industrial Park, Changan Town, Dongguan, Guangdong Applicant before: DONGGUAN JIERONG TECHNOLOGY CO., LTD. |
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