CN104767531B - A kind of Gray's code-disc - Google Patents
A kind of Gray's code-disc Download PDFInfo
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- CN104767531B CN104767531B CN201510110503.9A CN201510110503A CN104767531B CN 104767531 B CN104767531 B CN 104767531B CN 201510110503 A CN201510110503 A CN 201510110503A CN 104767531 B CN104767531 B CN 104767531B
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- current potential
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Abstract
The invention discloses a kind of Gray's code-discs, and including pcb board, the pcb board is equipped with first Gray's code channel, second Gray's code channel, third Gray code channel and the 4th Gray's code channel being connect respectively with the current potential brush of trigger；Several counting Gray codes of counting are respectively provided on wherein first Gray's code channel, second Gray's code channel and third Gray's code channel, are additionally provided with to place the anti-frame hopping that the current potential brush jumps brush between two adjacent counting Gray codes；On the inside of the third Gray code channel, for the 4th Gray's code channel as zero signal output label.It can prevent current potential brush leakage brush Gray code from making gray count more accurate using the present invention.
Description
Technical field
The present invention relates to Gray's code-disc field more particularly to a kind of Gray's code-discs.
Background technology
Gray code belongs to Reliability codes, is a kind of coding mode of error minimization.Because although natural binary code
Analog signal directly can be converted by D/A converter, but in certain situations, for example, from metric 3 be converted to 4 when two into
Each of code processed will become, and digital circuit can be made to generate very big peak current pulse.And Gray code is then without this shortcoming,
, when adjacent interdigit is converted, only one generates variation for it.It is patrolled when greatly reducing by a state to next state
That collects obscures.Since two adjacent interblocks of this coding only have a difference, thus in the corner displacement for direction
In the conversion of amount-digital quantity, when minor change occurs for the corner displacement amount in direction（And when may cause the digital quantity to change,
Gray code only changes one, more reliable compared with other codings change two or the situation of multidigit simultaneously in this way, you can to reduce
The possibility of error.
The prior art mainly adopts Gray's code-discs for detecting or counting, and Gray's code-disc is read in encoder or brushgear
Often the phenomenon that will appear jump brush or leakage brush, i.e., since brushgear rotating speed is too fast, there is brushgear and bounced some Gray
Code, is unfavorable for the use of Gray code at the phenomenon that leading to miscount.
Therefore, the prior art has yet to be improved and developed.
Invention content
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of Gray's code-disc, overcome the prior art
Middle Gray's code-disc easily jumps brush and counts inaccurate technological deficiency.
Technical scheme is as follows：
A kind of Gray's code-disc, including pcb board, the pcb board is equipped with first connect respectively with the current potential brush of trigger
Gray's code channel, second Gray's code channel, third Gray code channel and the 4th Gray's code channel；
Several of counting are respectively provided on wherein first Gray's code channel, second Gray's code channel and third Gray's code channel
Gray code is counted, is additionally provided with to place the anti-frame hopping that the current potential brush jumps brush between two adjacent counting Gray codes；
On the inside of the third Gray code channel, for the 4th Gray's code channel as zero signal output label.
Above-mentioned Gray's code-disc, wherein the first Gray code channel, second Gray's code channel, third Gray code channel and the 4th Gray
Code channel is copper foil Gray's code channel.
Above-mentioned Gray's code-disc, wherein the first Gray code channel, second Gray's code channel, third Gray code channel and the 4th Gray
The operating potential of code channel is 3.3V.
Above-mentioned Gray's code-disc, wherein, the trigger is JK flip-flop.
Above-mentioned Gray's code-disc, wherein, the current potential for counting Gray code connection be more than the anti-frame hopping connection current potential or
The current potential for counting Gray code connection is less than the current potential of the anti-frame hopping connection.
Above-mentioned Gray's code-disc, wherein, the current potential of the anti-frame hopping connection is zero.
Gray's code-disc provided by the present invention, due to using in first Gray's code channel, second Gray's code channel and third Gray
Several counting Gray codes of counting are respectively provided on code channel, is additionally provided with and is used between two adjacent counting Gray codes
Place the anti-frame hopping that the current potential brush jumps brush；Since anti-frame hopping is contour with counting Gray code, will not beat when current potential brush rotates,
So as to prevent current potential brush leakage brush Gray code from making gray count more accurate.
Description of the drawings
Fig. 1 is the schematic diagram of Gray's code-disc preferred embodiment in the present invention.
Fig. 2 is the partial schematic diagram of Gray's code-disc preferred embodiment in the present invention.
In figure：1st, first Gray's code channel；2nd, second Gray's code channel；3rd, third Gray code channel；4th, the 4th Gray's code channel；5th, it counts
Number Gray code；6th, anti-frame hopping；7th, pcb board.
Specific embodiment
The present invention provides a kind of Gray's code-disc, to make the purpose of the present invention, technical solution and effect clearer, clear and definite,
Referring to the drawings and give an actual example that the present invention is described in more detail.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
Refering to Figure 1, Gray's code-disc provided by the invention, including pcb board 7, the pcb board 7 is equipped with 4 circle Grays
Code channel.Outmost turns setting is first Gray's code channel 1, successively, the inside of first Gray's code channel 1 second Gray's code channel 2 is set
With third Gray code channel 3.The first Gray code channel 1, second Gray's code channel 2 and third Gray code channel 3 are for counting, and difference
It is connect with trigger, output to microcontroller carries out calculation process after then trigger is encoded.Gray code of the prior art
Disk is provided only with first, second, and third Gray's code channel for counting, and between two adjacent Gray codes in Gray's code channel
For sky, that is, metal Gray code is not provided with, usually 7 clear area of pcb board.When in use, the current potential brush of trigger is from two neighboring
After being passed through on one of Gray code in Gray code, 7 clear area of a pcb board and then again another Gray code of swipe need to be passed through,
But another Gray code is turned to from 7 clear area of pcb board in current potential brush（That is second Gray code）When upper, frame hopping easily occurred and shows
As.The generation of frame hopping phenomenon can cause counting error, and current potential brush has brushed one or more Gray codes and measurement structure will be made less
Into irremediable error.
To overcome above-mentioned technical problem, as shown in Fig. 2, in Gray's code-disc provided by the invention, the pcb board 7 is equipped with
First Gray's code channel 1, second Gray's code channel 2, third Gray code channel 3 and the 4th Gray being connect respectively with the current potential brush of trigger
Code channel 4.Wherein first Gray's code channel 1, second Gray's code channel 2, be respectively provided on third Gray code channel 3 counting several
Gray code 5 is counted, is additionally provided with to place the anti-frame hopping 6 that the current potential brush jumps brush between two adjacent counting Gray codes 5.
The complete Gray's code channel of formation one for counting 6 complementation of Gray code 5 and the anti-frame hopping, and counting 5 He of Gray code
The high settings such as the anti-frame hopping 6；It is mutually isolated by etching counting between the counting Gray code 5 and the anti-frame hopping 6.When having
It is complementary and contour due to counting Gray code 5 and anti-frame hopping 6 when current potential brush passes through the first, second, and third Gray code channel,
Frame hopping phenomenon or leakage brush phenomenon will not occur when current potential brush passes through, solve that gray count in the prior art is not allowed asks
Topic.
Specifically, the first Gray code channel 1, second Gray's code channel 2, third Gray code channel 3 and the 4th Gray's code channel 4
Operating potential is 3.3V.Use the counting Gray code in the present invention, when the trigger is JK flip-flop, JK flip-flop
Current potential brush is arranged on the counting and is rotated with Gray code centered around the counting with Gray code, and the current potential brush corresponds to different
Gray's code channel is equipped with different current potential brushes.When current potential brush pass through three adjacent Gray codes when, i.e., by first Gray's code channel 1,
When adjacent three in second Gray's code channel 2 and third Gray code channel 3 count Gray code 5 or anti-frame hopping 6.
Such as current potential brush is moved to the anti-frame hopping 6 of first Gray's code channel 1, second Gray's code channel 2 and third Gray code channel 3
On, the current potential on anti-frame hopping 6 at this time can be denoted as zero, then JK flip-flop records Gray's code value and is transmitted in microcontroller and saves as
000 binary coding, current potential brush are continued to move to when current potential brush detects a current potential, i.e., current potential brush is mobile and has been triggered to meter
Number Gray code 5, such as the counting Gray code 5 are the counting Gray code on third Gray code channel 3, then JK flip-flop record Gray code
Be worth and be transmitted to saved as in microcontroller 001 binary coding, then current potential brush continue to move to, and so on obtain different lattice
Thunder code value, this is repeated no more again for existing counting.The difference is that the counting lattice in first, second, and third Gray's code channel
Thunder code 5 can trigger current potential brush with current potential, and design the Gray code that the current potential that anti-frame hopping 6 connects is zero potential, when current potential brush
Sky is recorded as when touching the anti-frame hopping 6.Since anti-frame hopping is contour with counting Gray code, will not beat when current potential brush rotates,
By anti-frame hopping 6 can prevent current potential brush because rotating speed it is too fast and generate frame hopping or leakage brush phenomenon, make Gray's coded disc counting more subject to
Really.
As the another specific embodiment of the present invention, when setting counts the current potential of Gray code 5 and anti-frame hopping 6, can also incite somebody to action
It is described to count current potential of the current potential more than the anti-connection of frame hopping 6 or the current potential for counting Gray code 5 and connecting that Gray code 5 connects
The current potential connected less than the anti-frame hopping 6.If the current potential for counting Gray code 5 is more than the current potential of anti-frame hopping 6, the triggering of current potential brush is anti-
Sky or zero are then recorded as during the low potential of frame hopping 6；When the current potential for counting Gray code is less than the current potential of anti-frame hopping 6, current potential brush touches
It is then recorded as during the high potential for sending out frame hopping 6 anti-empty or zero.
Further, rotation and the counting that the beginning second of formula is enclosed, this hair will be added up after one circle of current potential brush rotation
It is bright positioned at 3 inside of the third Gray code channel, independently of a circle except first to third Gray's code channel, independently arranged
4th Gray's code channel 4 of Gray's code channel, for as zero signal output label.That is the 4th Gray's code channel 4 has zero reference
Effect, every turn of current potential brush it is complete one circle can then trigger output pulsatile once signal, using the Gray code of the 4th Gray's code channel 4 as machine
Tool zero-bit records, to realize the unlimited cumulative of multi-turn and measure.
Further, in above-mentioned Gray's code-disc, the first Gray code channel 1, second Gray's code channel 2, third Gray
3 and the 4th Gray's code channel 4 of code channel is copper foil Gray's code channel, can effectively transmit current potential, reaches and measures accurate effect.
In conclusion Gray's code-disc provided by the present invention, due to using in first Gray's code channel 1, second Gray's code channel 2
With several counting Gray codes 5 that counting is respectively provided on third Gray code channel 3, two adjacent counting Gray codes 5
Between be additionally provided with to place the anti-frame hopping 6 that the current potential brush jumps brush；Since anti-frame hopping is contour with counting Gray code, when current potential brush
It will not beat during rotation, so as to prevent current potential brush leakage brush Gray code from making gray count more accurate.
It should be understood that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, wanted for example, all these modifications and variations should all belong to right appended by the present invention
The protection domain asked.
Claims (5)
1. a kind of Gray's code-disc, which is characterized in that including pcb board, the pcb board is equipped with to be connected respectively with the current potential brush of trigger
First Gray's code channel, second Gray's code channel, third Gray code channel and the 4th Gray's code channel connect；
Several countings of counting are respectively provided on wherein first Gray's code channel, second Gray's code channel and third Gray's code channel
Gray code is additionally provided with to prevent the current potential brush from jumping brush between two adjacent counting Gray codes in same Gray's code channel
Anti- frame hopping；
On the inside of the third Gray code channel, for the 4th Gray's code channel as zero signal output label；
The current potential of the anti-frame hopping connection is zero；
The counting Gray code and the anti-frame hopping are complementarily shaped to complete Gray's code channel, the counting in same Gray's code channel
Gray code is intertwined with anti-frame hopping, and the counting Gray code and the contour setting of anti-frame hopping.
2. Gray's code-disc according to claim 1, which is characterized in that the first Gray code channel, second Gray's code channel,
Three Gray's code channels and the 4th Gray's code channel are copper foil Gray's code channel.
3. Gray's code-disc according to claim 1, which is characterized in that the first Gray code channel, second Gray's code channel,
The operating potential of three Gray's code channels and the 4th Gray's code channel is 3.3V.
4. Gray's code-disc according to claim 1, which is characterized in that the trigger is JK flip-flop.
5. Gray's code-disc according to claim 1, which is characterized in that the current potential for counting Gray code connection is more than described
The current potential of anti-frame hopping connection or the current potential for counting Gray code connection are less than the current potential of the anti-frame hopping connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110503.9A CN104767531B (en) | 2015-03-13 | 2015-03-13 | A kind of Gray's code-disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110503.9A CN104767531B (en) | 2015-03-13 | 2015-03-13 | A kind of Gray's code-disc |
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| Publication Number | Publication Date |
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| CN104767531A CN104767531A (en) | 2015-07-08 |
| CN104767531B true CN104767531B (en) | 2018-06-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0519333A1 (en) * | 1991-06-21 | 1992-12-23 | University Of Utah Research Foundation | Rotary displacement measuring apparatus |
| CN2382074Y (en) * | 1999-06-29 | 2000-06-07 | 冯畅 | Flow meter counter |
| DE10057662A1 (en) * | 2000-11-21 | 2002-04-04 | Siemens Ag | Absolute value rotation sensor reads magnetic Gray code track |
| CN1509411A (en) * | 2001-05-16 | 2004-06-30 | Position encoder | |
| CN2679638Y (en) * | 2003-08-25 | 2005-02-16 | 李亚兰 | Digital display flexible rule having double sensors |
| CN204442350U (en) * | 2015-03-13 | 2015-07-01 | 东莞捷荣技术股份有限公司 | A kind of Gray's code-disc |
-
2015
- 2015-03-13 CN CN201510110503.9A patent/CN104767531B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0519333A1 (en) * | 1991-06-21 | 1992-12-23 | University Of Utah Research Foundation | Rotary displacement measuring apparatus |
| CN2382074Y (en) * | 1999-06-29 | 2000-06-07 | 冯畅 | Flow meter counter |
| DE10057662A1 (en) * | 2000-11-21 | 2002-04-04 | Siemens Ag | Absolute value rotation sensor reads magnetic Gray code track |
| CN1509411A (en) * | 2001-05-16 | 2004-06-30 | Position encoder | |
| CN2679638Y (en) * | 2003-08-25 | 2005-02-16 | 李亚兰 | Digital display flexible rule having double sensors |
| CN204442350U (en) * | 2015-03-13 | 2015-07-01 | 东莞捷荣技术股份有限公司 | A kind of Gray's code-disc |
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| Publication number | Publication date |
|---|---|
| CN104767531A (en) | 2015-07-08 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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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: 20150910 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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