CN105067560B - A kind of automatic contrast moisture content in leaves Measurement channel adjusting method - Google Patents
A kind of automatic contrast moisture content in leaves Measurement channel adjusting method Download PDFInfo
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Abstract
The present invention relates to a kind of automatic contrast moisture content in leaves Measurement channel adjusting method, step are as follows：Machine exit is baked in beating and double roasting, and several On-line near infrared analyzer Moisture Meter Measurement channels are set, the initial condition sub-signal of collection tobacco leaf in real time, the tobacco leaf of the same place of production and grade can make online Moisture Meter measure different values by adjusting passage, On-line near infrared analyzer Moisture Meter is 0.2 1 passages, a passage is often adjusted, numerical value changes on the basis of initial data in units of 0.2；The present invention is easy to upgrade, safeguarded by the error minimum for the parameter on-line prediction for adjusting On-line near infrared analyzer Moisture Meter in real time, the time delay of more than 20 minutes caused by Moisture Meter error process is manually adjusted before eliminating, interface is left to intelligent spc control technologies, eliminates the time delay of closed-loop system itself.
Description
Technical field
The present invention relates to beating and double roasting process technical field, more particularly to a kind of automatic contrast moisture content in leaves Measurement channel
Adjusting method.
Background technology
Moisture control has very important status in the crude tobacco processing of tobacco leaf rebaking factory, accurate measurement and control cigarette
The moisture data of bag, there is great meaning to the quality of production for lifting cigarette bag, in the automate production processes of redrying factory,
Accurate measurement and the moisture data of control cigarette bag are how carried out, is not but a nothing the matter.
In the environmental factor of Redrying Factory online production, for example, temperature, the factor of production, different brackets flue-cured tobacco production and
The oneself factor of instrument make it that the data of Moisture Meter on-line checking and actual moisture are that have certain deviation, gives online technique people
Member's control closed-loop system is brought certain misleading；And the process that test in laboratory goes out moisture also has the delay of more than 20 minutes
Time, it is impossible to the timely adjustment and control certain to the deviation of On-line near infrared analyzer Moisture Meter, therefore we just think according to moisture
Real-time monitoring adjust the various parameters of online Moisture Meter to reach the purpose of the excellent control of moisture, bring quality to enterprise
One rising；But we are faced with such factor, the instability of flow of piece cigarette, the hysteresis that laboratory data result comes out
Property, and the one-to-one corresponding of laboratory sampling is detected from Moisture Meter, and also have from belt pulley point three directions to vanning
Route division, and the interval disparity of sample time, these factors bring very big for our experiment on the spot
Difficulty, once a period of time, could it is contemplated that all moisture are averaged and made comparisons come the data with laboratory in a period of time
It is the proof later Jing Guo probability theory normal distribution, and the continuously observation and experiment to scene on the spot in several days, we reject
This way, the moisture data of the accurate cigarette bag of measurement in real time, is still one in the technological process of production of current Redrying Factory
Road technical barrier.
The content of the invention
In order to solve above-mentioned technical barrier, the invention provides a kind of automatic contrast moisture content in leaves Measurement channel regulation
Method, in this method, there is provided some moisture measurement passages, the moisture content in leaves value measured by assay laboratory and online water
The moisture data for dividing instrument to measure in real time, and then draw the online function value of moisture content in leaves, the cigarette that then comparative experiments room measures
Leaf moisture value and online function value, deviation between the two data adjust the Measurement channel of online Moisture Meter, reach
To the purpose of accurate measurement moisture content in leaves data.
To achieve these goals, the present invention uses following technical scheme：
A kind of automatic contrast moisture content in leaves Measurement channel adjusting method, this method comprise the following steps：
1) bake machine exit in beating and double roasting and several On-line near infrared analyzer Moisture Meter Measurement channels are set, gather tobacco leaf in real time
Initial condition sub-signal, it is different that the tobacco leaf of the same place of production and grade measures by adjusting passage online Moisture Meter
Value, On-line near infrared analyzer Moisture Meter is 0.2 1 passages, often adjusts a passage, and numerical value is with 0.2 on the basis of initial data
Unit changes；
2) the time t to be packed from roasting machine outlet On-line near infrared analyzer Moisture Meter to piece cigarette is calculated1, and the packing sampling of documentary film cigarette
Time point, case the time, sample interval, and the moisture value that lab oven is worked it out；
3) data that measure of a Yan Bao laboratory are automatically obtained, according to the sample time of its record, Tobacco slice packing
Time t2, the time t for end of casing3, and the On-line near infrared analyzer Moisture Meter for the roasting machine outlet of principle release retrodicted according to flow is relative
It is t in starting and the end time of the piece cigarette sample2-t1, t3-t1, the collection point number scale of On-line near infrared analyzer Moisture Meter during this period is
k；
4) withFor chronomere, piece cigarette is corresponded to the starting of sample on-line checking and terminated
Time map arrivesTwo collection point k on, w isWhen
The real-time point value of collection moisture is carved, this point set is denoted as Φ；
5) the continuous combination W of all collection points in units of k on in-line infrared water-measuring meter Φ is calculated1：k, W2：k+1...
Wk+1：2*k, this k+1 kind is combined formed disturbance moisture and is denoted as set omega；
6) the set of computations Ω and minimum range S of single-point laboratory piece cigarette data：Φ
What is characterized is that piece cigarette sampling experiment room detection moisture disturbs with On-line near infrared analyzer detection moisture in a raw material, is disturbed with the time
Minimum range；
7) system deviation of 10 points of Continuous plus, calculation formula are
As a further improvement, described On-line near infrared analyzer Moisture Meter initial channel is arranged to 8 passages.
As a further improvement, there are 8 points in the case of raw material disturbance with time disturbance, 8 points are more than 0.2, then
The Measurement channel of the On-line near infrared analyzer Moisture Meter of adjustment, the channel number of adjustment is K=max (k), wherein k*0.2≤Θ ＜ (k+
1)*0.2。
The present invention is minimum by the error for adjusting the parameter on-line prediction of On-line near infrared analyzer Moisture Meter in real time, is easy to
Upgrading, safeguard, the time delay of more than 20 minutes caused by Moisture Meter error process is manually adjusted before eliminating, to intelligence
Spc control technologies leave interface, eliminate the time delay of closed-loop system itself.
Brief description of the drawings
Fig. 1 is the experiment effect figure of the present invention；
Fig. 2 is the system block diagram of the present invention.
Embodiment
The embodiment of the present invention is made a detailed explanation below in conjunction with the accompanying drawings.
A kind of automatic contrast moisture content in leaves Measurement channel adjusting method as described in Figure 1, this method comprise the following steps：
A kind of automatic contrast moisture content in leaves Measurement channel adjusting method, this method comprise the following steps：
1) bake machine exit in beating and double roasting and several On-line near infrared analyzer Moisture Meter Measurement channels are set, gather tobacco leaf in real time
Initial condition sub-signal, it is different that the tobacco leaf of the same place of production and grade measures by adjusting passage online Moisture Meter
Value, On-line near infrared analyzer Moisture Meter is 0.2 1 passages, often adjusts a passage, and numerical value is with 0.2 on the basis of initial data
Unit changes；
2) the time t to be packed from roasting machine outlet On-line near infrared analyzer Moisture Meter to piece cigarette is calculated1, and the packing sampling of documentary film cigarette
Time point, case the time, sample interval, and the moisture value that lab oven is worked it out；
3) data that measure of a Yan Bao laboratory are automatically obtained, according to the sample time of its record, Tobacco slice packing
Time t2, the time t for end of casing3, and the On-line near infrared analyzer Moisture Meter for the roasting machine outlet of principle release retrodicted according to flow is relative
It is t in starting and the end time of the piece cigarette sample2-t1, t3-t1, the collection point number scale of On-line near infrared analyzer Moisture Meter during this period is
k；
4) withFor chronomere, piece cigarette is corresponded to the starting of sample on-line checking with the end of
Between be mapped toTwo collection point k on, w isWhen
The real-time point value of collection moisture is carved, this point set is denoted as Φ；
5) the continuous combination W of all collection points in units of k on in-line infrared water-measuring meter Φ is calculated1：k, W2：k+1...
Wk+1：2*k, this k+1 kind is combined formed disturbance moisture and is denoted as set omega；
6) the set of computations Ω and minimum range S of single-point laboratory piece cigarette data：
What Φ was characterized is that piece cigarette sampling experiment room detection moisture disturbs with On-line near infrared analyzer detection moisture in a raw material, with the time
Minimum range in disturbance；
7) system deviation of 10 points of Continuous plus, calculation formula are
There are 8 points in the case of raw material disturbance with time disturbance, 8 points are more than 0.2, then the On-line near infrared analyzer adjusted
The Measurement channel of Moisture Meter, the channel number of adjustment is K=max (k), wherein k*0.2≤Θ ＜ (k+1) * 0.2.
Laboratory is detected to moisture content in leaves, the theorem in Euclid space that we form the moisture data of test in laboratory
It is designated as Ω1.Online Moisture Meter every five seconds for example detects a data, and the theorem in Euclid space of data composition is designated as Ω2.Test in laboratory tobacco leaf
The frequency of moisture is indefinite, depending on being needed with production, has plenty of every three casees and just detects a case, also have plenty of every two casees and just detect one
Case, here by taking every three casees detections one case as an example, for the cigarette bag moisture data S of the adjacent test in laboratory of any two1,S2, no
Harm is designated as S1In S2Detect before, the time is represented with t, soWherein Δ t just calculates each for us
The time of box installed case is how many, and we are ns2It is designated as S2Moisture Meter on-line real-time measuremen points, therefore
So according to convention it is understood that S2The moment point of online Moisture Meter collection pushes away forwardIndividual point should be just S2This
A little, therefore it should be just corresponding with laboratory online that we average to these data for the institute of the water content detection of one case
The S of detection2This case on-line checking value；Further, we have calculated S now2This case should detect real-time
Online moisture data, but we consider the fluctuation of flow again, and the problem of belt pulley shunting.
Claims (3)
1. a kind of automatic contrast moisture content in leaves Measurement channel adjusting method, it is characterised in that this method comprises the following steps：
1）Machine exit is baked in beating and double roasting several On-line near infrared analyzer Moisture Meter Measurement channels are set, gather the original of tobacco leaf in real time
The tobacco leaf of beginning moisture signal, the same place of production and grade can make online Moisture Meter measure different values by adjusting passage,
On-line near infrared analyzer Moisture Meter is 0.2 1 passages, often adjusts a passage, and numerical value is with 0.2 on the basis of initial data
Unit changes；
2）Calculate the time t to be packed from roasting machine outlet On-line near infrared analyzer Moisture Meter to piece cigarette1, and documentary film cigarette packing sampling when
Between point, case the time, sample interval, and the moisture value that lab oven is worked it out；
3）The data that a Yan Bao laboratory measures automatically are obtained, according to the sample time of its record, the time of Tobacco slice packing
t2, the time t for end of casing3, and the principle retrodicted according to flow releases the On-line near infrared analyzer Moisture Meter of roasting machine outlet relative to this
The starting of piece cigarette sample and end time are t2- t1, t3- t1, the collection point number scale of On-line near infrared analyzer Moisture Meter during this period is k；
4）WithFor chronomere, piece cigarette is corresponded to the starting of sample on-line checking and terminated
Time map arrivesTwo collection point k on, w isWhen
The real-time point value of collection moisture is carved, this point set is denoted as Φ；
5）Calculate the continuous combination of all collection points in units of k on in-line infrared water-measuring meter Φ
, this k+1 kind is combined formed disturbance moisture and is denoted as set omega；
6）The set of computations Ω and minimum range S of single-point laboratory piece cigarette data：,
What Φ was characterized is that piece cigarette sampling experiment room detection moisture disturbs with On-line near infrared analyzer detection moisture in a raw material, is disturbed with the time
On minimum range；
7）The system deviation of 10 points of Continuous plus, calculation formula are。
A kind of 2. automatic contrast moisture content in leaves Measurement channel adjusting method according to claim 1, it is characterised in that：Institute
The On-line near infrared analyzer Moisture Meter initial channel stated is arranged to 8 passages.
A kind of 3. automatic contrast moisture content in leaves Measurement channel adjusting method according to claim 2, it is characterised in that：Go out
Existing 8 points are in the case of raw material disturbance with time disturbance, and 8 points are more than 0.2, then the survey of the On-line near infrared analyzer Moisture Meter adjusted
Passage is measured, the channel number of adjustment is K=max (k), wherein。
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| CN107788567B (en) * | 2016-08-30 | 2020-02-14 | 上海创和亿电子科技发展有限公司 | Redrying machine, and method and system for acquiring water control fluctuation period |
| CN115349657B (en) * | 2022-08-28 | 2023-10-24 | 红云红河烟草(集团)有限责任公司 | Abnormality early warning system and method for online moisture meter of wire making key process |
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| CN104155262A (en) * | 2014-08-20 | 2014-11-19 | 浙江中烟工业有限责任公司 | Method for selecting spectrum scope in tobacco water-soluble sugar near infrared quantification model |
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| JP4743453B2 (en) * | 2008-12-25 | 2011-08-10 | 住友電気工業株式会社 | Gas monitoring device, combustion state monitoring device, secular change monitoring device, and impurity concentration monitoring device |
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| CN102866127A (en) * | 2012-09-17 | 2013-01-09 | 福建中烟工业有限责任公司 | Method for assisting cigarette formula by adopting SIMCA (Soft Independent Modeling of Class Analogy) based on Near-infrared spectral information |
| CN103472195A (en) * | 2013-10-08 | 2013-12-25 | 红塔烟草(集团)有限责任公司 | Method for determining measurement accuracy of on-line moisture meter through SPC |
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