CN101776924B - Full automatic digital instrument with dynamic PID technology and overshoot suppression - Google Patents
Full automatic digital instrument with dynamic PID technology and overshoot suppression Download PDFInfo
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- CN101776924B CN101776924B CN 200910045175 CN200910045175A CN101776924B CN 101776924 B CN101776924 B CN 101776924B CN 200910045175 CN200910045175 CN 200910045175 CN 200910045175 A CN200910045175 A CN 200910045175A CN 101776924 B CN101776924 B CN 101776924B
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Abstract
The invention discloses a full automatic digital instrument with dynamic PID technology and overshoot suppression, and relates to the field of intelligent instruments. The full automatic digital instrument comprises an instrument body and is characterized in that: the instrument applies the dynamic PID technology in the control implementing process; at the moment, a user only has one menu of 'Fn'0-n, Fn is function selection, wherein the instrument adopts two-position control when the Fn is equal to 0 and the instrument adopts digital control when the Fn is between 1 and n; and the control menu of the instrument is also added with an anti-overshoot coefficient GC for power matching. The full automatic digital instrument has the advantages that: the instrument applies the dynamic PID technology, automatically tracks and accurately controls the temperature according to different temperatures set by the user, and is very convenient to use.
Description
Technical field
The present invention relates to the intelligence instrument field, specifically is a kind of full automatic digital instrument with dynamic PID technology and overshoot inhibition.
Background technology
At present, the still digital displaying meter that temperature control instrument is widely applied on the market, be with three and half A/D converters: 7107 large scale integrated circuits and mimic channel are formed, and control mode is that two formulas and time scale are regulated two kinds.Because its method of operating is very simple, cheap, therefore use has a large capacity and a wide range.Though the intelligence instrument of excellent performance is applied in a large number in addition, because the menu complexity of intelligence instrument, the general user is difficult for grasping to three parameter: P of key (proportional band), I (integral time), the D (derivative time) of its temperature control.Therefore, its use face is nothing like digital displaying meter.But the precision of digital displaying meter is lower, function again less, temperature control performance is relatively poor, influences the raising of product quality to a great extent.
As you know, the three big key elements of taking a picture are: distance, aperture and shutter, and modern digital cameras is used fully automatic technique and has ideally been solved three's relation, and making takes pictures becomes operation, the technology that everybody can both use of being easy to.Temperature control also with the same three big key element: the P (ratio) that have that take pictures; I (integration); D (differential), the layman is difficult to make good use of three's relation, therefore makes temperature overshot be difficult to control, and temperature-controlled precision is difficult to improve.Though intelligence instrument can be judged P, I, three parameters of D automatically with adjusting certainly, long from the process time of adjusting, former after design temperature changes is not again very suitable from the parameter of adjusting, and carries out again again from adjusting.Adjust even used certainly, can not solve the overshoot of temperature but adjust certainly.And the operator is difficult for grasping.
Summary of the invention
Technical matters solved by the invention is to provide the dynamic P of a kind of application, I, D technology, and the different temperatures of setting according to the user is from motion tracking, uses the more easy full automatic digital instrument that dynamic PID technology and overshoot suppress that has.
Technical matters solved by the invention realizes by the following technical solutions: a kind of full automatic digital instrument with dynamic PID technology and overshoot inhibition comprises instrument itself, it is characterized in that: in the control program of described instrument, use dynamic PID technology, this moment, the user had only a menu, " Fn " 0～n, Fn is that function is selected (hereinafter to be referred as Fn), being on-off control during Fn=0 wherein, is digital control during Fn=1～n; In the Control-Menu of described instrument, also add anti-overshoot coefficient GC and be used for power match.
Described GC numerical range is between 0.3～3.0.
It is changeless that three parameters of described PID are different from the normal procedure intelligent instrument, and this programme can change and change automatically along with design temperature.
The further technical scheme of the present invention is because different its needed heating powers of design temperature differs greatly, use the dynamic power method for limiting, make that its heating power of different design temperatures and heat radiation power can be mated preferably, use the robotization principle again and simplify user's actions menu, reach and make things convenient for the user to grasp, the purpose of being convenient to promote.
Described digital instrument does not need to change the module instrument and has relay output and solid-state relay trigger pip output function simultaneously.
The invention has the beneficial effects as follows and use different temperatures that dynamic PID technology sets according to the user from motion tracking, therefore very easy to use.And be to change and change automatically along with design temperature with its pid parameter after the dynamic PID technology, differ greatly for its needed heating power of different design temperatures.The present invention also uses the dynamic power restriction technologies, makes that its heating power of different design temperatures and heat radiation power can be mated preferably, uses the actions menu that the robotization principle is simplified the user as far as possible again, reaches to make things convenient for the user to grasp the purpose of being convenient to promote.
Description of drawings
Fig. 1 is that instrument of the present invention is for 300W electric heating coil temperature control curve record one;
Fig. 2 is that instrument of the present invention is for 300W electric heating coil temperature control curve record two;
Fig. 3 is that instrument of the present invention is for 300W electric heating coil temperature control curve record three;
Fig. 4 is that instrument of the present invention is for 300W electric heating coil temperature control curve record four;
Fig. 5 is that instrument of the present invention is for 300W electric heating coil temperature control curve record five;
Fig. 6 is that instrument of the present invention is for 300W electric heating coil temperature control curve record six;
Fig. 7 is that instrument of the present invention is for 300W electric heating coil temperature control curve record seven;
Fig. 8 is that instrument of the present invention is for 300W electric heating coil temperature control curve record eight;
Fig. 9 is the temperature control recording curve of instrument of the present invention in the rotary asphalt film baking oven of SYD-0609.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of full automatic digital instrument with dynamic PID technology and overshoot inhibition comprises instrument itself, use dynamic PID technology in the control program of described instrument, this moment, the user had only a menu, " Fn " 0～n, Fn is that function is selected, being on-off control during Fn=0 wherein, is digital control during Fn=1～n; In the Control-Menu of described instrument, also add anti-overshoot coefficient GC and be used for power match.
The present invention confirms that at first the instrument wiring is correct in the operating process of reality, relay is output as switching signal, contact capacity 10A/220V.If solid-state relay can be received on the terminals of SSR.Secondly instrument energising, display window show measures temperature.Press the SET key, show and to press the SET key again by SP (design temperature), display setting value, and can pass through shift key subtracts key or adds key and changes setting value.Pressing SET key (affirmation) after configuring again gets final product.Enter menu at last: press 5 seconds of SET key, display window shows Fn (control mode selections), presses the SET key again, 0 ~ 8 numeral can occur, can select by adding key or subtracting key, presses the affirmation of SET key after choosing again and gets final product.Be set to 0, i.e. on-off control.Arrange 1 ~ 8 and be digital adjusting.
Electric furnace temperature control with 0 ~ 1000 degree is example, being achieved as follows of dynamic PID:
L---represents instrument range SV---and represents design temperature P---proportional band I---D---integral time OUT---derivative time output power Fn---function menu P '--dynamic proportion band I '--and the dynamic integral time D '--dynamic differential time OUT '---dynamically output power restriction (effective in the proportional band).A, B, C, GC are respectively four constants, n is coefficient.
P’＝A*P*(L-SV)/L+P
I’＝B*I*(L-SV)/L+I
D’＝C*D(L-SV)/L+D
OUT’＝GC*SV/L*OUT
Fn＝1?P＝1?I＝100?D＝I/n
Fn＝2?P＝3?I＝300?D＝I/n
Fn＝3?P＝6?I＝600?D＝I/n
Fn＝4?P＝10?I＝1000?D＝I/n
Fn＝5?P＝15?I＝1500?D＝I/n
Fn＝6?P＝21?I＝2100?D＝I/n
Fn＝7?P＝28?I＝2800?D＝I/n
Fn＝8?P＝36?I＝3600?D＝I/n
Again at the temperature control curve record of 300 watts of electric heating coils: referring to Fig. 1-Fig. 8.
Be directed to the rotary asphalt film baking oven of SYD-0609 that Changji, Shanghai geological instrument Manufacturing Co., Ltd produces, select the normal procedure intelligent instrument for use, its temperature control performance does not reach technical requirement all the time, has easily just reached technical requirement after selecting this patent full automatic digital instrument for use.As seen temperature control recording curve is referring to Fig. 9.
More than show and described ultimate principle of the present invention and technical characterictic and major advantage.The technician of the industry can understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all should fall in the claimed scope of the present invention.The scope of protection of present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. the full automatic digital instrument with dynamic PID technology and overshoot inhibition comprises instrument itself, it is characterized in that: the dynamic setting method of thereof using PID control parameter in the control procedure of described instrument, this moment, the user had only a menu, " Fn " 0～n, Fn is that function is selected, being on-off control during Fn=0 wherein, is digital control during Fn=1～n; In the Control-Menu of described instrument, also add anti-overshoot coefficient GC and be used for power match; Being achieved as follows of dynamic PID:
P’＝A*P*(L-SV)/L+P；
I’＝B*I*(L-SV)/L+I；
D’＝C*D*(L-SV)/L+D；
OUT’＝GC*SV/L*OUT；
Fn＝1P＝1I＝100D＝I/n；
Fn＝2P＝3I＝300D＝I/n；
Fn＝3P＝6I＝600D＝I/n；
Fn＝4P＝10I＝1000D＝I/n；
Fn＝5P＝15I＝1500D＝I/n；
Fn＝6P＝21I＝2100D＝I/n；
Fn＝7P＝28I＝2800D＝I/n；
Fn＝8P＝36I＝3600D＝I/n；
Wherein, L-represents instrument range; SV--represents design temperature; P--represents proportional band; I--D-integral time derivative time; The OUT-output power; The Fn-function menu; P '-dynamic proportion band; I '-dynamic integral time; D '-dynamic differential time; OUT '-dynamically output power restriction.
2. according to the described full automatic digital instrument with dynamic PID technology and overshoot inhibition of claim 1, it is characterized in that: described GC numerical range is between 0.3-3.0.
3. according to the described full automatic digital instrument with dynamic PID technology and overshoot inhibition of claim 1, it is characterized in that: its needed heating power of design temperature differs greatly, use the dynamic power method for limiting, make that its heating power of different design temperatures and heat radiation power can be mated preferably.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910045175 CN101776924B (en) | 2009-01-12 | 2009-01-12 | Full automatic digital instrument with dynamic PID technology and overshoot suppression |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910045175 CN101776924B (en) | 2009-01-12 | 2009-01-12 | Full automatic digital instrument with dynamic PID technology and overshoot suppression |
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| CN101776924A CN101776924A (en) | 2010-07-14 |
| CN101776924B true CN101776924B (en) | 2013-09-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519605A (en) * | 1994-10-24 | 1996-05-21 | Olin Corporation | Model predictive control apparatus and method |
| CN1661642A (en) * | 2004-02-24 | 2005-08-31 | 欧姆龙株式会社 | Target value processing unit, temperature controller, control process implementing system, process controlling method, target value processing program, and recording medium |
| CN1839356A (en) * | 2003-08-21 | 2006-09-27 | 株式会社山武 | PID parameter adjustment device |
| CN1989899A (en) * | 2005-12-29 | 2007-07-04 | 东软飞利浦医疗设备系统有限责任公司 | Magnetic body thermostatic control device and method for permanent-magnet magnetic resonance imaging systems |
-
2009
- 2009-01-12 CN CN 200910045175 patent/CN101776924B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519605A (en) * | 1994-10-24 | 1996-05-21 | Olin Corporation | Model predictive control apparatus and method |
| CN1839356A (en) * | 2003-08-21 | 2006-09-27 | 株式会社山武 | PID parameter adjustment device |
| CN1661642A (en) * | 2004-02-24 | 2005-08-31 | 欧姆龙株式会社 | Target value processing unit, temperature controller, control process implementing system, process controlling method, target value processing program, and recording medium |
| CN1989899A (en) * | 2005-12-29 | 2007-07-04 | 东软飞利浦医疗设备系统有限责任公司 | Magnetic body thermostatic control device and method for permanent-magnet magnetic resonance imaging systems |
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| CN101776924A (en) | 2010-07-14 |
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