CN1262907A - Control method of flavour addition in material and its application - Google Patents
Control method of flavour addition in material and its application Download PDFInfo
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- CN1262907A CN1262907A CN 99114673 CN99114673A CN1262907A CN 1262907 A CN1262907 A CN 1262907A CN 99114673 CN99114673 CN 99114673 CN 99114673 A CN99114673 A CN 99114673A CN 1262907 A CN1262907 A CN 1262907A
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- perfuming
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Abstract
The present invention relates to a flavour-adding method of flow automatic detection technology and its application. In actual production it adopts the combination of two-dimensional fuzzy control technology and computer technology to make cntrol to solve the problems of general automatic control system which adopts real-time control mode to result in non-synchronous and non-stable material signal and flow signal and its poor adaptability. In particular, it adopts time interval control method, and substitutes instantaneous quantity with cumulant, and uses the flavour-adding equipment with level sensor to control level change signal to control flavour-adding ratio. It not only can reduce cost, but also can raise detection accuracy, so that it can be extensively used in flavour-adding and sugar-adding fields of shredded tobacco and food, etc..
Description
The invention belongs to the perfuming control method of flow Automatic Measurement Technique.
Usually often need spray perfuming in proportion in producing to the material that flows through production line.Based on what generally adopt in this automatic control system is real-time control mode, i.e. the ratio of the instantaneous mass amount that flows through on instantaneous delivery in the employing detection perfuming pipeline and the production line obtains the computing of instantaneous perfuming than participation control model.Through long-term practice, we find, in actual production, the fluctuation amplitude of moving material amount is generally little on the production line, but comparatively frequent, and its flow measurement device generally has a segment distance from perfuming point in addition, therebetween also will be through the shake groove, the belt transmission, when it arrived perfuming point, operating mode changed already.Therefore, the advantage of controlling the quick tracking material variation that is had has not in real time had practical significance in the control of above-mentioned object.Because the fluctuation of material instantaneous delivery is more frequent, adopts real-time control to cause the concussion of control system easily.And control in real time can not solve well because the asynchronous problem of material signal and flow signal.
The object of the present invention is to provide a kind of control method, can control, and can properly solve asynchronous problem at this model.
The present invention realizes by following technical method: because this control object belongs to too inertial control system, Mathematical Modeling is difficult to be obtained, therefore adopt two-dimentional fuzzy control method and computer to detect the method for actual perfuming ratio in conjunction with control, promptly adopt the time segment method to detect, just use a period of time (as 10,20,30 seconds ...) in the spices flow and the ratio of corresponding mass flow replace wink to the perfuming ratio, concrete can be according to the fluctuation situation of mass flow to a section, on-the-spot disturbed condition, field working conditions such as the sensitivity of checkout gear are determined.Like this, both avoided the concussion situation that the perfuming pump occurs easily in the real-time control when material fluctuates, and be easy to again in computer, handle, convenient time-delay.Concrete control procedure is as follows: the flow accumulation signal of flow detector and the accumulation of material flow signal that belt claims pass to the control computer after gathering, the control computer try to achieve in the above described manner perfuming than after again with produce in the perfuming ratio that proposes get difference, this difference is calculated back output motor speed controling signal control perfuming motor by two-dimentional fuzzy control model rotates to control the size of perfuming amount.
The present invention will be further described below in conjunction with accompanying drawing:
Accompanying drawing 1 is control procedure figure of the present invention.
1 is perfuming device in the accompanying drawing, and 2 are the control computer, and 3 for belt claims, 4 is the perfuming motor, and 5 is the perfuming cylinder.
Accompanying drawing 1 course of work is: liquid perfume is added in the perfuming device (1), and the liquid level variable signal is sent into control computer (2) when having liquid level sensor to work in the device, draws perfuming amount in the time period.While material (pipe tobacco, tobacco leaf etc.) is sent constantly into belt and is claimed (3) weighing, and its weight signal is sent into control computer (2) simultaneously, draws mass flow in the same time period.After handling the two signal of gained, control computer (2) draws the perfuming ratio of this time period.Controlling computer (2) in the production compares with the perfuming ratio that requires in this perfuming ratio and the production, determine that by behind the control model calculation signal being delivered to perfuming motor (4) perfuming motor (4) rotating speed controls the perfuming amount that adds perfuming cylinder (5), deliver to production line after the material that spices claims (3) to send here with belt stirs and make finished product in perfuming cylinder (5).
One of accompanying drawing 1 embodiment that also to be the present invention use in cigarette factory, perfuming device among the figure (1) is to adopt liquid level sensor output liquid level variable signal in liquid perfuming tube, thus the control fluid flow.This is that the radius at hypothesis perfuming charging basket is R (rice), and liquid level is H (rice), and feed liquid density is p
1(kilograms per cubic meter), water density are p
2?(kilograms per cubic meter), acceleration of gravity are g (newton), and the liquid level sensor signal is a (the corresponding 1 meter water column height of 4-20 milliampere), so liquid level is ((a-4) * p in the charging basket
2)/(16*p
1), so liquid weight is w=(π * R in the charging basket
2* (a-4) * p
2* p
1)/(16*p
1), abbreviation is later that liquid in bucket weight is w=(a-4) * { (π * R
2* p
2)/16}, as can be seen, this weight signal and liquid material density are irrelevant.Spices evenly adds by the perfuming pump and is added in the thing in the perfuming charging basket, in the charging basket that twice (for example 10,20,30... second) obtained before and after promptly using liquid material weight subtract each other and the perfuming amount in the corresponding time period.Claim (3) to obtain the mass flow in this time period by belt simultaneously, ratio between two is the average perfuming ratio in this time period, compare with the perfuming ratio that requires in this average perfuming ratio and the production again, just can control the perfuming amount behind the control model calculation by control computer (2).
Control computer (2) is made main control computer.Its its control section in utilization has adopted two two-dimensional fuzzy controllers of adjusting the factor.Can instantaneous collection material (as tobacco leaf, pipe tobacco etc.) weight and instantaneous perfuming amount, calculate instantaneous perfuming ratio, with instantaneous perfuming than and the variation ec that sets the poor e of perfuming ratio and instantaneous perfuming ratio as input quantity, promptly so-called two-dimentional variable.When e was very big, the main target of control was to eliminate departure, so e plays a major role, and when e was very little, the main target of control was to make it stable, so the effect of ec should be bigger.
The control computer is made Fuzzy processing to accurate amount e and ec, generates fuzzy quantity, and then by the control law that progressively dwindles departure, the output analog quantity is made non-Defuzzication to analog quantity again and handled, last apparatus scale of construction control perfuming machine operation.
When belt claims in the inventory signal that flows through in (3) and the perfuming device (1) liquid level variable quantity signal ratio and produces required perfuming when inequality, control computer (2) output signal control perfuming motor (4) rotation speed change sprays into the liquid perfume in the perfuming device in the perfuming cylinder (5) in the material.
Above-mentioned perfuming control method is used in the flowmeter control method that can replace in the tobacco business having continued to use for many years, has not only solved the putty problem, and has reduced cost, has improved precision.Same the present invention also can be used for food, and medicine, chemical industry are the perfuming sugaring of other solid etc.
Claims (4)
1. the reinforced control method of a flavour addition in material, be to claim the mass flow signal on (3) to send into control computer (2) liquid level signal and belt after liquid perfume adds perfuming device (1), computer (2) with the perfuming of a time period than handling the perfuming amount that back control perfuming motor (4) rotating speed enters perfuming cylinder (5) with control, through with cylinder in deliver to production line after the material stirring.The control of the time segment that when it is characterized in that perfuming instantaneous flow is replaced with cumulant.
2. require the reinforced control method of described a kind of flavour addition in material according to right 1, it is characterized in that control method adopts two-dimensional fuzzy controller.
3. the control method that a kind of flavour addition in material according to claim 1 is reinforced is characterized in that accepting that liquid level signal and belt deserve to be called the weight of material signal in the perfuming bucket, and the motor speed signal after the control computer is handled it exports the perfuming motor to.
4. the control method that a kind of flavour addition in material according to claim 1 is reinforced is characterized in that adopting the perfuming device of being with the liquid level signal sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114673 CN1115113C (en) | 1999-02-10 | 1999-02-10 | Control method of flavour addition in material and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114673 CN1115113C (en) | 1999-02-10 | 1999-02-10 | Control method of flavour addition in material and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1262907A true CN1262907A (en) | 2000-08-16 |
| CN1115113C CN1115113C (en) | 2003-07-23 |
Family
ID=5277727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99114673 Expired - Fee Related CN1115113C (en) | 1999-02-10 | 1999-02-10 | Control method of flavour addition in material and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1115113C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833293A (en) * | 2010-06-01 | 2010-09-15 | 华东师范大学 | Precision control method and device for adding micro-liquid |
| CN102008121A (en) * | 2010-12-13 | 2011-04-13 | 山东中烟工业有限责任公司 | Linear correction control method of perfuming precision error in tobacco processing |
| CN102423127A (en) * | 2011-10-12 | 2012-04-25 | 龙岩烟草工业有限责任公司 | Device and method for detecting working state of washboard in cigarette-making machine |
| CN102524930A (en) * | 2010-12-31 | 2012-07-04 | 贵州中烟工业有限责任公司 | Method for improving accuracy of leaf feeding |
| CN101611922B (en) * | 2009-07-13 | 2013-05-01 | 云南昆船设计研究院 | Method for improving material water ratio uniformity after charging |
| CN103892432A (en) * | 2012-12-25 | 2014-07-02 | 山东中烟工业有限责任公司青岛卷烟厂 | Flow control method and system for adding spice liquid in tobacco processing technology |
| CN109901384A (en) * | 2019-03-19 | 2019-06-18 | 上海烟草集团有限责任公司 | Tobacco scrap prodn charging precision control method and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593979C (en) * | 2006-10-20 | 2010-03-17 | 红云烟草(集团)有限责任公司 | Chamber type leaves-storing process for tobacco processing line |
-
1999
- 1999-02-10 CN CN 99114673 patent/CN1115113C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101611922B (en) * | 2009-07-13 | 2013-05-01 | 云南昆船设计研究院 | Method for improving material water ratio uniformity after charging |
| CN101833293A (en) * | 2010-06-01 | 2010-09-15 | 华东师范大学 | Precision control method and device for adding micro-liquid |
| CN101833293B (en) * | 2010-06-01 | 2011-11-02 | 华东师范大学 | Precision control method and device for adding micro-liquid |
| CN102008121A (en) * | 2010-12-13 | 2011-04-13 | 山东中烟工业有限责任公司 | Linear correction control method of perfuming precision error in tobacco processing |
| CN102008121B (en) * | 2010-12-13 | 2012-09-19 | 山东中烟工业有限责任公司 | Linear correction control method of perfuming precision error in tobacco processing |
| CN102524930A (en) * | 2010-12-31 | 2012-07-04 | 贵州中烟工业有限责任公司 | Method for improving accuracy of leaf feeding |
| CN102524930B (en) * | 2010-12-31 | 2015-03-25 | 贵州中烟工业有限责任公司 | Method for improving blade feeding precision |
| CN102423127A (en) * | 2011-10-12 | 2012-04-25 | 龙岩烟草工业有限责任公司 | Device and method for detecting working state of washboard in cigarette-making machine |
| CN103892432A (en) * | 2012-12-25 | 2014-07-02 | 山东中烟工业有限责任公司青岛卷烟厂 | Flow control method and system for adding spice liquid in tobacco processing technology |
| CN109901384A (en) * | 2019-03-19 | 2019-06-18 | 上海烟草集团有限责任公司 | Tobacco scrap prodn charging precision control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1115113C (en) | 2003-07-23 |
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Granted publication date: 20030723 |