CN104553382A - Printing precision processing method and device - Google Patents
Printing precision processing method and device Download PDFInfo
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- CN104553382A CN104553382A CN201310499632.2A CN201310499632A CN104553382A CN 104553382 A CN104553382 A CN 104553382A CN 201310499632 A CN201310499632 A CN 201310499632A CN 104553382 A CN104553382 A CN 104553382A
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- 238000007639 printing Methods 0.000 title claims abstract description 43
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000005070 sampling Methods 0.000 claims description 30
- 238000005096 rolling process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 16
- 238000007641 inkjet printing Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The invention provides a printing precision processing method and device. The method comprises steps as follows: obtaining a first count reference value P through a formula N=K*D/M according to a set frequency division value D, a frequency doubling value M and an obtained first interval count value K at a current moment, wherein the first count reference value P is an integer part of N, the first interval count value is larger than or equal to a preset threshold value, the preset threshold value is set according to a precision requirement, and a pulse signal is output according to the first count reference value P.
Description
Technical field
The present invention relates to computer technology, particularly relate to a kind of processing method and device of printing precision.
Background technology
At present, in ink jet printing numerical control system, encoder without exception serve as important role.In a particular application, according to installation site and structure, encoder can be divided into pinch roller encoder, with shaft encoder and encoded servo device etc.In addition, in all application, the effect of encoder is: the displacement of correctly reflection printing stock.Specifically, Digital ink jet printing is dot matrix printing: be referred to as transverse precision in the ink dot spacing perpendicular to stock direction, is determined by the physical characteristic of ink jet-print head; Ink dot spacing on stock moving direction is referred to as Longitudinal precision, and ink jet printing numerical control system is by controlling the precision longitudinally printed to the process of encoder pulse signal.
But encoder and installing mechanism thereof are once Selection and Design completes, and the coded pulse signal that this encoder exports just is fixed up, but general user requires that Longitudinal precision is variable; In addition, structurally can there is certain trueness error in the installing mechanism of encoder, such as: circularity, concentricity, therefore, existing coded pulse signal may off-design standard, thus reduce longitudinal printing precision, and longitudinal printing precision cannot be variable, namely cannot meet the demand of user.
Summary of the invention
The invention provides a kind of processing method and device of printing precision, for effectively improve printing precision, and can meet consumers' demand.
First aspect of the present invention is to provide a kind of processing method of printing precision, comprising:
According to the frequency division value D arranged and frequency multiplication value M, and the first gap count value K of the current time obtained, adopt formula N=K × D ÷ M, obtain the first counting reference value P, wherein, described first counting reference value P is the integer part of described N; Described first gap count value is more than or equal to predetermined threshold value; Described predetermined threshold value is arrange according to required precision;
According to described first counting reference value P, output pulse signal.
Another aspect of the present invention is to provide a kind for the treatment of apparatus of printing precision, comprising:
Counting reference value acquisition module, for according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, described P is the integer part of described N; Described first gap count value is more than or equal to predetermined threshold value; Described predetermined threshold value is arrange according to required precision;
Output of pulse signal module, for according to described counting reference value P, output pulse signal.
Technique effect of the present invention is: according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, and adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, this P is the integer part of this N; And according to this counting reference value P, output pulse signal.Because the first gap count value is more than or equal to predetermined threshold value, and predetermined threshold value is arrange according to accuracy requirement, therefore, is carrying out remainder process, after namely referring to the integer part of acquisition N, can reduce error, thus effectively improve printing precision.In addition, the ratio of what in fact algorithm adopted is D and M, therefore, the numerical values recited of D and M is not limited, the degree of regulation of frequency division and frequency multiplication can be as accurate as a system sampling clock cycle, far beyond the demand of printing precision, and the difficulty of non-processor remainder, therefore, it is possible to correct the reflection circularity of coder structure, the problem of concentricity, and can meet consumers' demand.
Accompanying drawing explanation
Fig. 1 is the flow chart of an embodiment of the processing method of printing precision of the present invention;
Fig. 2 is the flow chart of another embodiment of the processing method of printing precision of the present invention;
Fig. 3 is the flow chart of another embodiment of the processing method of printing precision of the present invention;
Fig. 4 is the structural representation of an embodiment of the treating apparatus of printing precision of the present invention;
Fig. 5 is the structural representation of another embodiment of the treating apparatus of printing precision of the present invention.
Detailed description of the invention
Fig. 1 is the flow chart of an embodiment of the processing method of printing precision of the present invention, and as shown in Figure 1, the executive agent of the method for the present embodiment is numerical control system, then the method comprises:
Step 101, according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K of current time obtained, adopts formula (1):
N＝K×D÷M （1）
Obtain counting reference value P, wherein, this P is the integer part of this N.
In the present embodiment, this first gap count value is more than or equal to predetermined threshold value; This predetermined threshold value is arrange according to required precision.For example, when required precision one thousandth, predetermined threshold value can be 1000.
Step 102, according to this counting reference value P, output pulse signal.
In the present embodiment, when output count down to P, export a pulse signal, and restart counting.
In the present embodiment, according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, this P is the integer part of this N; And according to this counting reference value P, output pulse signal.Because the first gap count value is more than or equal to predetermined threshold value, and predetermined threshold value is arrange according to accuracy requirement, therefore, is carrying out remainder process, after namely referring to the integer part of acquisition N, can reduce error, thus effectively improve printing precision.In addition, the ratio of what in fact algorithm adopted is D and M, therefore, the numerical values recited of D and M is not limited, the degree of regulation of frequency division and frequency multiplication can be as accurate as a system sampling clock cycle, far beyond the demand of printing precision, and the difficulty of non-processor remainder, therefore, it is possible to correct the reflection circularity of coder structure, the problem of concentricity, and can meet consumers' demand.
Fig. 2 is the flow chart of another embodiment of the processing method of printing precision of the present invention, and as shown in Figure 2, the executive agent of the method is numerical control system, then the method comprises:
Step 201, calculating obtain the gap count value K between current time first input pulse signal and the second input pulse signal, and this first pulse signal is the previous pulse signal of this second pulse signal.
Step 202, according to the frequency division value D arranged and frequency multiplication value M, and this gap count value K, adopt formula (1):
N＝K×D÷M （1）
Obtain counting reference value P, wherein, this P is the integer part of this N.
In the present embodiment, this first gap count value is more than or equal to predetermined threshold value; This predetermined threshold value is arrange according to required precision.
Step 203, according to this counting reference value P, output pulse signal.
In the present embodiment, for example, when gap count value is followed successively by 5000,4500,3500,3000, suppose that frequency division times frequency ratio is 1/2, so adopt formula (1), the counting reference value obtained is followed successively by 2500,2250,1750,1500, it can thus be appreciated that this output pulse signal follows the change of gap count value completely.
Fig. 3 is the flow chart of another embodiment of the processing method of printing precision of the present invention, and as shown in Figure 3, the executive agent of the method is numerical control system, then the method comprises:
Step 301, ready-to-print.
Step 302, calculating obtain the gap count value K between current time first input pulse signal and the second input pulse signal, and this first pulse signal is the previous pulse signal of this second pulse signal.
Step 303, according to the frequency division value D arranged and frequency multiplication value M, and this gap count value K, adopt formula (1):
N＝K×D÷M （1）
Obtain counting reference value P, wherein, this P is the integer part of this N.
In the present embodiment, this first gap count value is more than or equal to predetermined threshold value; This predetermined threshold value is arrange according to required precision.
Step 304, print enable after, start adopt clock counter count.
Step 305, judge whether the numerical value of sampling clock rolling counters forward is more than or equal to this counting reference value P; If be more than or equal to, then perform step 306; If be less than, then wait for this sampling clock rolling counters forward cumulative after perform step 305 again.
Step 306, output pulse signal, and this sampling clock counting device is reset.
Whether step 307, judge to print and terminate; If do not terminate, then perform step 304.If terminate, then Flow ends.
In the present embodiment, for example, suppose to count the pulse interval of encoder input, the gap count value obtained is K=3000, and hypothesis encoder input signal is ideal, export and need to do 2 frequencys multiplication, then frequency division/frequency multiplication can be set to 1/2,100/200 or 1000/2000, so adopt formula (1), the counting reference value P obtained is 1500.
If the encoder input signal cycle is less than normal compared with theoretical value, then can arrange frequency division/frequency multiplication is 1000/1998, so adopts formula (1), and the counting reference value P obtained is 1501.Suppose that frequency division/frequency multiplication is set to 1000/1997 again, so adopt formula (1), the counting reference value P obtained is 1502.It can thus be appreciated that by arranging frequency division/frequency multiplication, adjust the pulse signal exported, can reach a sampling clock cycle, such precision just can meet the requirement of printing precision.
In like manner, if encoder input signal is bigger than normal compared with theoretical value, then also can by arranging frequency division/frequency multiplication, make P be 1499,1498,1497 etc., thus also can meet the requirement of printing precision.
In addition, when frequency division times frequency ratio is not integer, such as P=1501 or 1499, so corresponding, input coding device pulse spacing (i.e. gap count value) can not a corresponding integer output pulse signal, but the pulse signal exported is strict reference to count reference value, be namely more than or equal to P then output pulse signal to lay equal stress on New count; Be less than P and then continue counting, along with the continuous real-time update of K and P, the pulse signal that can realize completely exporting, to the response of the pulse signal of input coding device and following, ensure that printing precision.
Further, in another embodiment of the present invention, on the basis of example shown in above-mentioned Fig. 3, the method also comprises:
When this first gap count value is updated to the second gap count value, according to this second gap count value, this frequency division value D and frequency multiplication value M, adopt this formula, obtain the second counting reference value.
Then step 305 replaces with:
Judge whether the numerical value of this sampling clock rolling counters forward is more than or equal to this second counting reference value, if be more than or equal to, then performs step 306; If be less than, then wait for this sampling clock rolling counters forward cumulative after perform step 305 again.
In the present embodiment, the speed of service due to stock is variable, therefore, K also may change always, therefore, can there are two kinds of more special situations: when the numerical value of the first situation, sampling clock rolling counters forward is less than or equal to the first counting reference value, this first gap count value is updated to the second gap count value, then the numerical value of sampling clock rolling counters forward can count reference value and compares with second.The number of times of the second situation, sampling clock counting device stored count has exceeded the first gap count value, but the first gap count value does not also upgrade, then the numerical value of sampling clock rolling counters forward still can count reference value and compares with first, until the first counting reference value upgrades.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Fig. 4 is the structural representation of an embodiment of the treating apparatus of printing precision of the present invention, and as shown in Figure 4, the device of the present embodiment comprises: counting reference value acquisition module 11 and output of pulse signal module 12; Wherein, counting reference value acquisition module 11 is for according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, and adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, described P is the integer part of described N; This first gap count value is more than or equal to predetermined threshold value; This predetermined threshold value is arrange according to required precision.Output of pulse signal module 12, for according to described counting reference value P, output pulse signal.
The treating apparatus of the printing precision of the present embodiment can perform the technical scheme of embodiment of the method shown in Fig. 1, and it is similar that it realizes principle, repeats no more herein.
In the present embodiment, according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, this P is the integer part of this N; And according to this counting reference value P, output pulse signal.Because the first gap count value is more than or equal to predetermined threshold value, and predetermined threshold value is arrange according to accuracy requirement, therefore, is carrying out remainder process, after namely referring to the integer part of acquisition N, can reduce error, thus effectively improve printing precision.In addition, the ratio of what in fact algorithm adopted is D and M, therefore, the numerical values recited of D and M is not limited, the degree of regulation of frequency division and frequency multiplication can be as accurate as a system sampling clock cycle, far beyond the demand of printing precision, and the difficulty of non-processor remainder, therefore, it is possible to correct the reflection circularity of coder structure, the problem of concentricity, and can meet consumers' demand.
Fig. 5 is the structural representation of another embodiment of the treating apparatus of printing precision of the present invention, on above-mentioned basis embodiment illustrated in fig. 4, as shown in Figure 5, this device can also comprise: gap count value acquisition module 13, for calculating the gap count value K obtained between current time first input pulse signal and the second input pulse signal, this first pulse signal is the previous pulse signal of this second pulse signal.
Preferably, output of pulse signal module 12 comprises: enable unit 121, judging unit 122 and output unit 123; Enable unit 121 is enable for printing, and start sampling clock counting device count; Judging unit 122 is for judging whether the numerical value of sampling clock rolling counters forward is more than or equal to this counting reference value P; Output unit 123, if be more than or equal to this counting reference value P, then output pulse signal for the numerical value of this sampling clock rolling counters forward of this judging unit, and resets this sampling clock counting device.
Preferably, if when this first gap count value is updated to the second gap count value by this gap count value acquisition module 13, then flip-flop number reference value acquisition module 11, according to this second gap count value, this frequency division value D and frequency multiplication value M, adopts this formula, obtains the second counting reference value;
Then this judging unit 122 is also for judging whether the numerical value of this sampling clock rolling counters forward is more than or equal to this second counting reference value;
If this output unit 123 is also judged to be more than or equal to for this judging unit, then output pulse signal, and this sampling clock counting device is reset.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a processing method for printing precision, is characterized in that, comprising:
According to the frequency division value D arranged and frequency multiplication value M, and the first gap count value K of the current time obtained, adopt formula N=K × D ÷ M, obtain the first counting reference value P, wherein, described first counting reference value P is the integer part of described N; Described first gap count value is more than or equal to predetermined threshold value; Described predetermined threshold value is arrange according to required precision;
According to described first counting reference value P, output pulse signal.
2. the processing method of printing precision according to claim 1, is characterized in that, the obtain manner of described gap count value is:
Calculate the first gap count value K obtained between current time first input pulse signal and the second input pulse signal, described first pulse signal is the previous pulse signal of described second pulse signal.
3. the processing method of printing precision according to claim 1 and 2, is characterized in that, described according to described first counting reference value P, output pulse signal, comprising:
When printing enable, start sampling clock counting device and count;
If the numerical value of described sampling clock rolling counters forward is more than or equal to described first counting reference value P, then output pulse signal, and described sampling clock counting device is reset.
4. the processing method of printing precision according to claim 3, is characterized in that, also comprises:
When described first gap count value is updated to the second gap count value, according to described second gap count value, described frequency division value D and frequency multiplication value M, adopt described formula, obtain the second counting reference value;
Judge whether the numerical value of described sampling clock rolling counters forward is more than or equal to described second counting reference value, if be more than or equal to, then output pulse signal, and described sampling clock counting device is reset.
5. a treating apparatus for printing precision, is characterized in that, comprising:
Counting reference value acquisition module, for according to the frequency division value D arranged and frequency multiplication value M, and the gap count value K obtained, adopt formula N=K × D ÷ M, obtain counting reference value P, wherein, described P is the integer part of described N; Described first gap count value is more than or equal to predetermined threshold value; Described predetermined threshold value is arrange according to required precision;
Output of pulse signal module, for according to described counting reference value P, output pulse signal.
6. the treating apparatus of printing precision according to claim 5, is characterized in that, also comprises:
Gap count value acquisition module, for calculating the gap count value K obtained between current time first input pulse signal and the second input pulse signal, described first pulse signal is the previous pulse signal of described second pulse signal.
7. the treating apparatus of the printing precision according to claim 5 or 6, is characterized in that, described output of pulse signal module comprises:
Enable unit, enable for printing, and start sampling clock counting device count;
Judging unit, for judging whether the numerical value of sampling clock rolling counters forward is more than or equal to described counting reference value P;
Output unit, if be more than or equal to described counting reference value P, then output pulse signal for the numerical value of described judging unit described sampling clock rolling counters forward, and resets described sampling clock counting device.
8. the treating apparatus of printing precision according to claim 7, is characterized in that,
If when described first gap count value is updated to the second gap count value by described gap count value acquisition module, then flip-flop number reference value acquisition module is according to described second gap count value, described frequency division value D and frequency multiplication value M, adopt described formula, obtain the second counting reference value;
Then described judging unit is also for judging whether the numerical value of described sampling clock rolling counters forward is more than or equal to described second counting reference value;
If described output unit is also judged to be more than or equal to for described judging unit, then output pulse signal, and described sampling clock counting device is reset.
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| CN201310499632.2A CN104553382B (en) | 2013-10-22 | 2013-10-22 | Printing precision processing method and device |
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| CN201310499632.2A CN104553382B (en) | 2013-10-22 | 2013-10-22 | Printing precision processing method and device |
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