CN104881066A - Armillaria mellea liquid state fermentation temperature control device and method - Google Patents
Armillaria mellea liquid state fermentation temperature control device and method Download PDFInfo
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- CN104881066A CN104881066A CN201510320587.9A CN201510320587A CN104881066A CN 104881066 A CN104881066 A CN 104881066A CN 201510320587 A CN201510320587 A CN 201510320587A CN 104881066 A CN104881066 A CN 104881066A
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Abstract
The invention provides an armillaria mellea liquid state fermentation temperature control device and method. The temperature of the fermentation broth in a fermentation cylinder (1) is adjusted by the water temperature in a jacket (1.1), the constant temperature water in a constant temperature water tank (2) is pumped by a circulating pump (B) into the jacket at the bottom of the fermentation cylinder via a first valve (F1) and a second valve (F2), and then returns back to the constant temperature water tank through the jacket at the upper part of the fermentation cylinder via a third valve (F3), the temperature T1 of the fermentation broth in the fermentation cylinder is transmitted to a first temperature transmitter (WB1) via a first temperature sensor (T1), and then is converted to 4-20mA signals to be transmitted to a lower computer (4), the temperature T2 of the constant temperature water tank is transmitted to a second temperature transmitter (WB2) via a second temperature sensor (T2), and then is converted to 4-20mA signals to be transmitted to the lower computer, The lower computer adjusts a heater (R) or cooling water based on the temperature T1 of the fermentation broth in the fermentation cylinder and the temperature T2 of the constant temperature water tank through a fuzzy PID algorithm to achieve the aim of controlling the temperature of the fermentation broth in the fermentation cylinder.
Description
Technical field
The present invention relates to fermentation temperature to control, refer in particular to a kind of halimasch liquid state fermentation temperature control system based on fuzzy (proportional integral derivative) algorithm.
Background technology
Halimasch is nutritious, also has medical value.It is reported, dry mushroom contains crude protein 11.4%, fat 5.2%, carbohydrates 75.9%, cellulose 5.8%, ash content 7.5%, heat 384 kilocalories.Also alcohol is carried out, vitamin A etc. containing D-Soviet Union in fructification, powerful to treatment lumbocrural pain, rickets, epileptics.Often edible halimasch, can prevent hypopsia, yctalopia, dry skin, and can strengthen the resistibility of human body to some respiratory tract and infectious disease of the digestive tract.According to external, isolated SG and polypeptide glucosan from halimasch fructification, through animal experiment, the latter is 70% to the inhibiting rate of small white mouse sarcoma S-180, is 80% to the inhibiting rate of Ehrlich's ascites carcinoma.Japanese scholars, also isolates the compound of a kind of AMG-l from halimasch fructification, has protective effect and sedation to brain.The solid fermentation goods of halimasch, halimasch sheet, silver-colored sweet sheet, rhizoma Gastrodiae can be replaced to make medicine, and cause dizzy patient to diseases such as hypertension VBI, Meniere's syndrome, vegetative nerve functional disturbances, result for the treatment of is better.Also certain curative effect is had to limb fiber crops, insomnia, tinnitus, apoplexy sequelae etc.Within 1932, Reitsma has made probe to halimasch, and has carried out a series of physiological Study.Halimasch is the indispensable mutualistic symbiosis bacterium of rhizoma Gastrodiae, the help of the required halimasch of cultivation rhizoma Gastrodiae.
The cultivation of armillaria mycelium has liquid submerged fermentation and solid state fermentation two kinds, and the present invention, based on liquid submerged fermentation, solves climate control issues.
Summary of the invention
Technical matters: temperature the object of this invention is to provide a kind of halimasch liquid state fermentation temperature control equipment based on fuzzy PID algorithm and method.Stickiness when temperature has during the fermentation, the feature such as non-linear, and not easily set up the accurate mathematical model of sweat controlled device.Solve fermentation system non-linear, time become, time stickiness, in interference and sweat Parameters variation on the impact of temperature control effect.
Technical scheme: fuzzy control is a kind of rule-based control, it directly adopts language type control law, starting point is the control experience of site operation personnel or the knowledge of associated specialist, do not need in the design to set up the accurate mathematical model of controlled device, thus control mechanism and strategy is made to be easy to accept and understand, simplicity of design, is convenient to application.By the qualitative understanding of industrial process, set up Linguistic control law than being easier to, thus fuzzy control is difficult to obtain to those mathematical models, and dynamic perfromance is not easily grasped or to change the object of highly significant very applicable.Fuzzy control is based on suggestive knowledge and the design of language decision rule, and this is conducive to simulating manually operated process and method, strengthens the adaptive faculty of control system, makes it to have certain level of intelligence.Meanwhile, the strong robustness of Fuzzy control system, interference and the impact of Parameters variation on control effects are significantly reduced, be particularly suitable for non-linear, time change and the control of dead-time system.
Halimasch liquid state fermentation temperature control equipment of the present invention comprises fermentation tank, chuck, motor, speed regulator, constant temperature water tank, the first temperature sensor, the second temperature sensor, well heater, host computer, slave computer; First valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve; First solenoid valve, the second solenoid valve, the first temperature transmitter, the second temperature transmitter, ebullator; Wherein, the outer wall of fermentation tank is provided with chuck, the input termination slave computer of speed regulator, exports termination motor, is driven the mechanical stirrer being arranged in fermentation tank by motor; Sequentially pass through the first valve in the bottom of fermentation tank, bottom that ebullator, the second valve connect constant temperature water tank, the top of fermentation tank connects the top of constant temperature water tank by the 3rd valve, be provided with the first solenoid valve at the top of fermentation tank, the first temperature sensor connects slave computer by the first temperature transmitter; Outside chilled water is connect by the 4th valve, the 5th valve on the top of constant temperature water tank, the 6th valve is parallel with at the two ends of the 4th valve, the 5th valve, the second solenoid valve is provided with between the 4th valve, the 5th valve, well heater and the second temperature sensor is also provided with in constant temperature water tank, second temperature sensor connects slave computer by the second temperature transmitter, and well heater and the second solenoid valve connect slave computer.
This control method adopts the halimasch liquid state fermentation temperature-controlled process based on fuzzy PID algorithm, and fuzzy-adaptation PID control utilizes fuzzy control rule to modify to pid parameter, temperature error e and error rate e
cas system two input, after obfuscation and fuzzy reasoning, output parameter K
p, K
i, K
dto PID regulator, they are added that the initial value of parameter just obtains the actual parameter of PID control respectively, thus determines controller input and output variable, export corresponding controlled quentity controlled variable and control output module, change average output power, thus realize the control to temperature; Wherein, K
pfor proportional gain;
for integral coefficient;
for differential coefficient.
In fermentation tank, the temperature of fermentation liquor is regulated by the water temperature in chuck, thermostatted water in constant temperature water tank pumps in fermenter base chuck by ebullator by the first valve, the second valve, get back in constant temperature water tank by fermentation tank top chuck through the 3rd valve again, in fermentation tank, the temperature T1 of fermentation liquor is transferred to the first temperature transmitter via the first temperature sensor, then is transformed into 4-20mA signal and delivers to slave computer; Temperature T2 in constant temperature water tank is transferred to the second temperature transmitter via the second temperature sensor, then is transformed into 4-20mA signal and also delivers to slave computer; Slave computer, according to the temperature T2 in the temperature T1 of fermentation liquor in fermentation tank, constant temperature water tank, by fuzzy PID algorithm, regulates well heater or chilled water, reaches the object that in fermentation tank, broth temperature controls.
Beneficial effect: PID controls as a kind of traditional control strategy, have control mode simple, without features such as steady-state errors.Temperature of charge in tank is controlled in sweat with fuzzy controller.Fuzzy-adaptation PID control of the present invention is on the basis of general PID control system, add a fuzzy control rule link, fuzzy control and PID controller are combined, maximize favourable factors and minimize unfavourable ones, both there is the flexible and adaptable advantage of fuzzy control, there is again the feature that PID control accuracy is high, to complex control system system, there is good control effects.Fermentation tank adopts jacket heat transfer temperature control method, reaches the requirement of different fermentations stage to temperature.
Accompanying drawing explanation
Fig. 1 is the structural drawing of fuzzy temperature control system of the present invention.
Fig. 2 is that halimasch installation for fermenting temperature controls schematic diagram, comprising: fermentation tank 1, chuck 1.1, motor 1.2, speed regulator 1.3, first temperature sensor T
1, constant temperature water tank 2, second temperature sensor T
2, well heater R, host computer 3, slave computer 4; First valve F1, the second valve F2, the 3rd valve F3, the 4th valve F4, the 5th valve F5, the 6th valve F6; First solenoid valve DP1, the second solenoid valve DP2, the first temperature transmitter WB1, the second temperature transmitter WB2, ebullator B.
Embodiment
The outer wall of fermentation tank 1 is provided with chuck 1.1, the input termination slave computer 4 of speed regulator 1.3, exports termination motor 1.2, is driven the mechanical stirrer being arranged in fermentation tank 1 by motor 1.2; Sequentially pass through the first valve F1, ebullator B in the bottom of fermentation tank 1, bottom that the second valve F2 connects constant temperature water tank 2, the top of fermentation tank 1 connects the top of constant temperature water tank 2 by the 3rd valve F3, the first solenoid valve DP1 is provided with, the first temperature sensor T at the top of fermentation tank 1
1slave computer 4 is connect by the first temperature transmitter WB1; Outside chilled water is connect by the 4th valve F4, the 5th valve F5 on the top of constant temperature water tank 2, the 6th valve F6 is parallel with at the two ends of the 4th valve F4, the 5th valve F5, between the 4th valve F4, the 5th valve F5, be provided with the second solenoid valve DP2, in constant temperature water tank 2, be also provided with well heater R and the second temperature sensor T
2, the second temperature sensor T
2connect slave computer 4 by the second temperature transmitter WB2, well heater R and the second solenoid valve DP2 connects slave computer 4.
1. incremental pid algorithm
Δu(k)＝u(k)-u(k-1)
＝K
P[e(k)-e(k-1)]+K
Ie(k)+K
D[e(k)-2e(k-1)+e(k-2)] (1)
Wherein K
pfor proportional gain;
for integral coefficient;
for differential coefficient.
Conveniently formula (1) is organized into following form for programming
Δu(k)＝q
0e(k)+q
1e(k-1)+q
2e(k-2) (2)
Wherein
Incremental control algolithm and position type method comparison, have the following advantages:
(1) incremental algorithm does not need to do cumulative, and only with recently error sampled value is relevant several times in the determination of controlled quentity controlled variable increment, less on the calculating impact of controlled quentity controlled variable.And position type algorithm will use the accumulated value of error in the past, easily produce large add up error.
(2) increment of controlled quentity controlled variable that what incremental algorithm drew is, such as, in Valve controlling, the changing unit of an output valve aperture, misoperation impact is little, as necessary by Logic judgment restriction or forbid that this exports, can not have a strong impact on the work of system.And the full dose that the output of position type algorithm is controlled quentity controlled variable exports, misoperation impact is large.
(3) adopting incremental algorithm, being easy to realize manually to switching without impacting automatically.
2. fuzzy controller
As shown in Figure 1, fuzzy-adaptation PID control utilizes fuzzy control rule to modify to pid parameter, temperature error e and error rate e
cas system two input, after obfuscation and fuzzy reasoning, output parameter K
p, K
i, K
dto PID regulator.They are added that the initial value of parameter just obtains the actual parameter of PID control respectively.Thus determine controller input and output variable.
When setting up the fuzzy control rule of temperature, determination and the temperature-control performance of membership function and control rule table are closely related.Δ K
p, Δ K
iwith Δ K
dthe output of fuzzy controller, i.e. the correcting value of pid parameter.K
p, K
iand K
dsubstitute in digital PID expression formula, so just obtain output quantity, as calculated, export corresponding controlled quentity controlled variable and control output module, change average output power, thus realize the control to temperature.Fuzzy control search table is as shown in table 1.
Table 1 fuzzy control search table
3. thermostatted water system
As shown in Figure 2, in fermentation tank, the temperature of fermentation liquor is regulated by the water temperature in chuck, thermostatted water in constant temperature water tank is pumped in fermenter base chuck by the first valve F1, the second valve F2 by ebullator, then is got back in constant temperature water tank through valve F3 by fermentation tank top chuck.
In fermentation tank, the temperature T1 of fermentation liquor is transferred to temperature transmitter WB1 via temperature sensor pt100, then is transformed into 4-20mA signal and delivers to slave computer.
Temperature T2 in constant temperature water tank is transferred to temperature transmitter WB2 via temperature sensor pt100, then is transformed into 4-20mA signal and also delivers to slave computer.
Slave computer, according to T1, T2, by fuzzy PID algorithm, regulates well heater or chilled water, reaches the object that in fermentation tank, broth temperature controls.
Heat interchange due to earlier fermentation, mid-term, later stage has very large difference, the parameter of controlled device has larger change in the process, the foundation of mathematical model is quite difficult, therefore the FUZZY ALGORITHMS FOR CONTROL not too high to model needs is considered, and in conjunction with PID controller, there is the features such as structure simply, easily realizes, control effects is good, strong robustness, according to the modifications control law of Fermentation Process of Parameter, so good effect is obtained to the control of sweat temperature.
Claims (3)
1. a halimasch liquid state fermentation temperature control equipment, it is characterized in that this device comprises fermentation tank (1), chuck (1.1), motor (1.2), speed regulator (1.3), constant temperature water tank (2), the first temperature sensor (T
1), the second temperature sensor (T
2), well heater (R), host computer (3), slave computer (4); First valve (F1), the second valve (F2), the 3rd valve (F3), the 4th valve (F4), the 5th valve (F5), the 6th valve (F6); First solenoid valve (DP1), the second solenoid valve (DP2), the first temperature transmitter (WB1), the second temperature transmitter (WB2), ebullator (B); Wherein, the outer wall of fermentation tank (1) is provided with chuck (1.1), the input termination slave computer (4) of speed regulator (1.3), export termination motor (1.2), driven the mechanical stirrer being arranged in fermentation tank (1) by motor (1.2); Sequentially pass through the first valve (F1) in the bottom of fermentation tank (1), bottom that ebullator (B), the second valve (F2) connect constant temperature water tank (2), the top of fermentation tank (1) connects the top of constant temperature water tank (2) by the 3rd valve (F3), the first solenoid valve (DP1) is provided with, the first temperature sensor (T at the top of fermentation tank (1)
1) connect slave computer (4) by the first temperature transmitter (WB1); Outside chilled water is connect by the 4th valve (F4), the 5th valve (F5) on the top of constant temperature water tank (2), the 6th valve (F6) is parallel with at the two ends of the 4th valve (F4), the 5th valve (F5), between the 4th valve (F4), the 5th valve (F5), be provided with the second solenoid valve (DP2), in constant temperature water tank (2), be also provided with well heater (R) and the second temperature sensor (T
2), the second temperature sensor (T
2) connecing slave computer (4) by the second temperature transmitter (WB2), well heater (R) and the second solenoid valve (DP2) connect slave computer (4).
2. the control method of a halimasch liquid state fermentation temperature control equipment as claimed in claim 1, it is characterized in that this control method adopts the halimasch liquid state fermentation temperature-controlled process based on fuzzy PID algorithm, fuzzy-adaptation PID control utilizes fuzzy control rule to modify to pid parameter, temperature error e and error rate e
cas system two input, after obfuscation and fuzzy reasoning, output parameter K
p, K
i, K
dto PID regulator, they are added that the initial value of parameter just obtains the actual parameter of PID control respectively, thus determines controller input and output variable, export corresponding controlled quentity controlled variable and control output module, change average output power, thus realize the control to temperature; Wherein, K
pfor proportional gain;
for integral coefficient;
for differential coefficient.
3. the control method of halimasch liquid state fermentation temperature control equipment according to claim 2, it is characterized in that the temperature of fermentation tank (1) interior fermentation liquor is regulated by the water temperature in chuck (1.1), thermostatted water in constant temperature water tank (2) pumps in fermenter base chuck (1.1) by ebullator (B) by the first valve (F1), the second valve (F2), get back in constant temperature water tank (1) by fermentation tank top chuck through the 3rd valve (F3) again, in fermentation tank, the temperature T1 of fermentation liquor is via the first temperature sensor (T
1) be transferred to the first temperature transmitter (WB1), then be transformed into 4-20mA signal and deliver to slave computer (4); Temperature T2 in constant temperature water tank (2) is via the second temperature sensor (T
2) be transferred to the second temperature transmitter (WB2), then be transformed into 4-20mA signal and also deliver to slave computer (4); Slave computer (4), according to the temperature T2 in the temperature T1 of fermentation liquor in fermentation tank, constant temperature water tank (2), by fuzzy PID algorithm, regulates well heater (R) or chilled water, reaches the object that in fermentation tank, broth temperature controls.
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| CN107699422A (en) * | 2017-10-20 | 2018-02-16 | 青岛科技大学 | A kind of wine cabinet all-in-one with brewing functional |
| CN110147129A (en) * | 2019-05-16 | 2019-08-20 | 湖北问天软件***有限公司 | The adaptive temperature controller and control method of baking tray |
| CN116855328A (en) * | 2023-08-08 | 2023-10-10 | 广东广味老***酒业有限公司 | Intelligent preparation device and preparation process of health care wine |
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| CN116855328A (en) * | 2023-08-08 | 2023-10-10 | 广东广味老***酒业有限公司 | Intelligent preparation device and preparation process of health care wine |
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