CN105320186A - Litopeneaus vannamei juvenile culture solution monitoring device and control method - Google Patents
Litopeneaus vannamei juvenile culture solution monitoring device and control method Download PDFInfo
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Abstract
The invention discloses a litopeneaus vannamei juvenile culture solution monitoring device and control method. The litopeneaus vannamei juvenile culture solution monitoring device comprises a control end, and m first terminals and n second terminals which are respectively arranged above culture ponds, wherein n is smaller than m. The control end comprises a main controller, a memory, a first wireless transceiver, a water depth sensor arranged in a culture solution, a first display, an alarm, a first computer, first solenoid valves respectively arranged on the water inlet pipe of the culture ponds, and second solenoid valves respectively arranged on water outlet pipes of the culture ponds. Each first terminal comprises a terminal controller, a second wireless transceiver, a second display, a second computer, and a dissolved oxygen sensor, a PH value sensor, a water temperature sensor and a phosphate anion sensor which are arranged in the culture solution. The litopeneaus vannamei juvenile culture solution monitoring device can automatically monitor the parameter changes of the culture solution in the culture ponds, automatic adjustment is carried out in time once some parameters are abnormal, alarm information for the parameters needing manual intervention is emitted out in time, and the response to the culture solution change is more rapid and timely.
Description
Technical field
The present invention relates to aquaculture technical field, especially relate to a kind of Penaeus Vannmei seedling nutrient solution monitoring device and control method that reliable basis is provided of growing up healthy and sound that can be Penaeus Vannmei seedling.
Background technology
Penaeus Vannmei (Penaeusvannemei), also known as white pin prawn, belongs to Arthropoda, Crustachia, Decapoda, swimming suborder, Penaeidae, Penaeus.Be produced in South America littoral sea, in Ecuador, Panama, Colombia, Peru, Chile, Nicaragua etc., state is coastal distribution.Its fine and tender taste, meat flavour is delicious, is the main shrimps in culture of South America.Also occupy critical positions in Penaeus Vannmei alive boundary shrimp culture industry, with Chinese prawn, Penaeus monodon is listed as the three large economic shrimps that cultured area on our times is maximum, output is the highest.
Penaeus Vannmei seedling is comparatively strong to withstand high temperatures ability, responsive to low temperature performance, does not like and ingests, poor growth lower than 20 DEG C.
Penaeus Vannmei seedling is higher to water quality requirement, especially requires that body dissolved oxygen is sufficient.In the above situation of water body dissolved oxygen 6 mg/litre, it is movable normal, and growth is very fast; Time below water body dissolved oxygen 4 mg/litre, then there is expiratory dyspnea.
At present, the device that can the growing environment of Penaeus Vannmei seedling is monitored and be controlled also is not had.
Chinese patent mandate publication number: CN201928764U, authorize publication date on August 17th, 2011, disclose a kind of nutrient solution recycling device, comprise one with the cultivation liquid pool of liquid feeding pipeline, also is furnished with automation detection and control device, be provided with the mother liquor tank of one group of holding nutrient solution, the output pipe of each mother liquor tank passes into be cultivated in liquid pool, and the output pipe of each mother liquor tank is provided with the micro pump being controlled by automation detection and control device; Be provided with a water disposal facility, the external tap water pipe line of its entrance, its output pipe passes into be cultivated in liquid pool; Be provided with an apparatus of oxygen supply, its output pipe passes into be cultivated in liquid pool; Cultivation liquid pool mid-enter one group of sensor, this group sensor at least comprises the one in liquid level sensor, dissolved oxygen sensor, PH sensor, EC sensor and temperature sensor; The input end of the output termination automation detection and control device of described each sensor.The weak point of this invention is, insufficiency of function cannot be used in culture of Penaeus vannamei.
Summary of the invention
Goal of the invention of the present invention lacks to the deficiency of the device that the growing environment of Penaeus Vannmei seedling is monitored and controlled, can provide a kind of Penaeus Vannmei seedling nutrient solution monitoring device and control method of providing reliable basis of growing up healthy and sound that can be Penaeus Vannmei seedling to overcome in prior art.
To achieve these goals, the present invention is by the following technical solutions:
A kind of Penaeus Vannmei seedling nutrient solution monitoring device, comprises control end and m the first terminal be located at above culture pond and n the second terminal, n < m; Described control end comprises master controller, storer, the first wireless transceiver, the water depth sensor being arranged in nutrient solution, the first display, alarm, the first computing machine, the second solenoid valve of being located at the first solenoid valve on the water inlet pipe of culture pond and being located on the rising pipe of culture pond; First terminal includes terminal control unit, the second wireless transceiver, second display, second computer, is arranged in the dissolved oxygen sensor of nutrient solution, pH sensor, cooling-water temperature sensor and phosphate anion sensor; Second terminal, compared with first terminal, adds oxygen increasing pump;
Master controller is electrically connected with storer, the first wireless transceiver, water depth sensor, the first display, alarm, the first computing machine, the first solenoid valve and the second solenoid valve respectively; The second wireless transceiver, dissolved oxygen sensor, pH sensor, cooling-water temperature sensor, phosphate anion sensor, second display and second computer that the terminal control unit of first terminal and the second terminal is corresponding with it are respectively electrically connected; The oxygen increasing pump that the terminal control unit of the second terminal is all corresponding with it is electrically connected; First wireless transceiver respectively with each the second wireless transceiver wireless connections.
Usually control end is located in pulpit, when the dissolved oxygen sensor of each terminal in culture pond, pH sensor, cooling-water temperature sensor, when the numerical value detected in phosphate anion sensor is not in critical field, master controller and each terminal control unit can carry out data processing and control culture pond monitoring device adjusting control accordingly, thus make the dissolved oxygen sensor in culture pond, pH sensor, cooling-water temperature sensor, the parameter value that phosphate anion sensor detects is positioned at critical field all the time, for growing up healthy and sound of Penaeus Vannmei seedling provides reliable basis.
When parameter value is abnormal, the staff being positioned at pulpit can observe warning message in time by the first display, and alarm can send alarm sound simultaneously; The second display being positioned at each terminal also can display alarm information; Thus culture pond monitoring device is carrying out the automatic adjustment of certain parameter to make staff know in time, and understand current needs manual intervention is carried out to which parameter.
Therefore, the present invention has the change automatically can monitoring nutrient solution parameter in culture pond, some abnormal parameters is adjusted in time automatically, warning message is sent in time for needing the parameter of manual intervention, make the reaction of nutrient solution change more quick, timely, thus the stability of parameters in maintenance nutrient solution, for growing up healthy and sound of Penaeus Vannmei seedling provides reliable basis.
As preferably, first terminal and the second terminal include the optical sensor and ammonia nitrogen sensor that are arranged in nutrient solution, and ammonia nitrogen sensor, optical sensor are electrically connected with corresponding terminal control unit.
As preferably, described first terminal and the second terminal include waterproof case, and control end also comprises status indicator lamp.
As preferably, master controller and terminal control unit are CC2530 single-chip microcomputer, and each sensor is all electrically connected with corresponding terminal control unit by amplifying circuit.
A control method for Penaeus Vannmei seedling nutrient solution monitoring device, comprises the steps:
(5-1) the threshold value L of dissolved oxygen DO is stored in storer, the critical field of pH value, water temperature and phosphorus acid ion concentration; Master controller passes through the first wireless transceiver sending threshold value L and each critical field, the second wireless transceiver receive threshold L of each terminal and each critical field; Each working sensor, detects parameters value respectively; Second wireless transceiver of each terminal sends the packet be made up of the detection numerical value of each sensor successively with time interval T1;
(5-2) change water time interval the morning being provided with culture pond in master controller, change the critical field of water time interval and the depth of water evening, change water time interval in morning and change evening in water time interval, master controller is respectively according to the depth of water parameter value that water depth sensor detects, control the first solenoid valve and the second solenoid valve opens and cuts out, thus make the depth of water in culture pond be positioned at critical field;
(5-3) each terminal control unit reads the numerical value that pH sensor detects, by the numerical value of detection compared with critical field;
If the numerical value that the pH sensor of at least one the terminal POT (5-3-1) in all terminals detects is not in critical field, then second wireless transceiver of each terminal POT sends the information of pH value exception;
(5-3-2) master controller reads the numerical value computation of mean values W that all pH sensor detect, if W is positioned at critical field, then master controller is sent by the first wireless transceiver and opens the order of oxygen increasing pump; The oxygen increasing pump work of each the second terminal;
(5-3-3) after time T, master controller read all pH sensor detect numerical value and computation of mean values W;
If W is in critical field, proceed to step (5-4);
If W is not in critical field, main controller controls alarm equipment alarm, the first display display pH value is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows pH value extremely, needs the information of manual intervention;
(5-4) each terminal control unit reads the numerical value that dissolved oxygen sensor detects, by the numerical value of detection compared with critical field;
If the numerical value < L that the dissolved oxygen sensor of any one terminal e detects, then second wireless transceiver of terminal e sends abnormal DO information;
The master controller receiving abnormal DO information sends oxygenation order by the first wireless transceiver; The terminal control unit of each the second terminal controls oxygen increasing pump work, and the numerical value that oxygen increasing pump work detects to dissolved oxygen sensor reaches (1+eac%) L, eac is 20 to 40;
(5-5) numerical value that the cooling-water temperature sensor that master controller reads each terminal detects, calculates water temperature average W1,
If W1 is not in critical field, main controller controls alarm equipment alarm, the first display display water temperature is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows water temperature extremely, needs the information of manual intervention;
(5-6) numerical value that the phosphate anion sensor that master controller reads each terminal detects, calculates phosphate anion average W11, W11 and critical field is compared;
When W11 is not in critical field, main controller controls alarm equipment alarm, the first display display phosphorus acid ion concentration is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display phosphorus acid ion concentration of each terminal is abnormal, needs the information of manual intervention; Proceed to step (5-2).
The adjustment needs of pH value parameter are very careful, after the present invention's pH value after twice detection is all abnormal, just control display and alarm equipment alarm, request manual intervention, thus effectively prevent the whole impact of growing up healthy and sound on Penaeus Vannmei seedling of mistuning.
PH value is too high adopts the method for discharging alum He discharging U-Ramin MC:
When discharging alum (aluminium potassium sulfate), the about 2-3kg/ mu of concentration; Discharge U-Ramin MC, after U-Ramin MC hydrolysis, in acid, can pH value be reduced, and can calcium ion be provided.
PH value is too low adopts the method for adding unslaked lime and using algal grown element:
Add unslaked lime, consumption is approximately 20-25mg/L, splashes with after water-solubleization, approximately can promote ph value 0.5; Use algal grown element, cultivate planktonic organism, consume CO2 too much in water body.
When water temperature is too low, geothermal heating and Electric heating can be adopted to improve the temperature of culture pond, water temperature over-high can adopt the method cooling hidden nutrient solution.
Because the source of phosphate anion is mainly culturing pool biology in nutrient solution, as fish, shrimp eat surplus feed; Therefore, when phosphorus acid ion concentration is too high, by controlling forage feed amount, reduce the concentration of phosphorus in water.
As preferably, first terminal and the second terminal include the optical sensor and ammonia nitrogen sensor that are arranged in nutrient solution, and ammonia nitrogen sensor, optical sensor are electrically connected with corresponding terminal control unit; Also comprise the steps:
(6-1) terminal control unit reads the numerical value that ammonia nitrogen sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates ammonia nitrogen average W3, W3 and the ammonia nitrogen threshold value L11 preset is compared;
As W3 >=L11, main controller controls alarm equipment alarm, the first display display pond culture pond D ammonia nitrogen is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display ammonia nitrogen of each terminal is abnormal, needs the information of manual intervention;
(6-2) terminal control unit reads the numerical value that optical sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates illumination average W2, W2 and critical field is compared;
When W2 is not in critical field, main controller controls alarm equipment alarm, the first display display light, according to abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display light of each terminal, according to abnormal, needs the information of manual intervention.
When ammonia nitrogen is too high, running water probiotic 200g can be added or pacify into bacterium despot 150g/ mu; Or zeolite of splashing, generally every mu of 15 ~ 20kg.
When illumination is too strong, the mode of covering can be adopted to resist high light; When illumination is too weak, artificial lighting can be adopted to strengthen light intensity.Time-division at night, then close light, in order to avoid affect biological growth.
As preferably, also comprise the steps:
Set the critical field of described pH sensor as [R
1, R
2], master controller obtains the t of culture pond D
i-dmoment is to current time t
ipH sensor detect the curve S (t) of average, t
i-dfor t
iin the moment before, the two differs time d; Volatilization and decomposition threshold SNR is prestored in storer
w;
S (t) is inputted the accidental resonance model prestored in memory by master controller
in;
Wherein, x (t) is the displacement of vibration particle, and Ω is angular frequency, f
0be signal frequency, A is constant, r and ω is the attenuation coefficient of setting and the frequency of linear oscillator particle respectively, and c is the signal adjustment coefficient of setting, and b is the quadratic noise ξ of setting
2t the coefficient of (), ξ (t) is three discrimination noises, and { dismutation of noise follows Poisson distribution to ξ (t) ∈ for-a, 0, a}, a > 0, and its probability distribution is p
s(a)=p
s(-a)=q, p
s(0)=1-2q, wherein 0 < q < 0.5;
Noise average and correlativity follow < ξ (t) >=0, < ξ (t) ξ (t+ τ) >=2qa
2e
-λ τ;
Wherein λ is correlation ratio, and the flatness of three discriminations noise ξ (t) is
When model resonates, particle produces resonance in certain position, and this angular frequency Ω, attenuation coefficient r, correlation ratio λ, coefficient b, constant a, q determine;
Master controller utilizes formula
calculate and obtain the output signal-to-noise ratio SNR corresponding with S (t);
As SNR>=SNR
wtime, change the critical field of pH sensor into [q
1r
1, q
2r
2], wherein, 0.8 < q
1< 1,1 < q
2< 1.1.
Consider that the variable effect of the change of environment to pH value is larger, pH sensor detected value curve S (t) in select time d of the present invention, by can obtain the output signal-to-noise ratio SNR of representing ambient conversion severe degree to the accidental resonance analysis of S (t), by SNR and volatilization and decomposition threshold SNR
w, thus the bound of pH value critical field is finely tuned, thus give the volatilization of the nutrient solution of culture pond and decompose reserved certain wide area amount.
As preferably, the critical field of pH value is 7.2-8.5; The critical field of water temperature is 20 DEG C-25 DEG C.
As preferably, the critical field of the depth of water is 40-60cm; Early change water time interval for [5:00,10:00], change water time interval evening for [18:00,22:00].
As preferably, L is 5.9mg/L-6.5mg/L.
Therefore, the present invention has following beneficial effect: the change automatically can monitoring nutrient solution parameter in culture pond, some abnormal parameters is adjusted in time automatically, warning message is sent in time for needing the parameter of manual intervention, make the reaction of nutrient solution change more quick, timely, thus the stability of parameters in maintenance nutrient solution, for growing up healthy and sound of Penaeus Vannmei provides reliable basis.
Accompanying drawing explanation
Fig. 1 is a kind of circuit diagram of control end of the present invention;
Fig. 2 is a kind of theory diagram of first terminal of the present invention;
Fig. 3 is a kind of theory diagram of the second terminal of the present invention;
Fig. 4 is a kind of process flow diagram of embodiments of the invention 1.
In figure: control end 1, storer 2, master controller 3, first wireless transceiver 4, first display 5, alarm 6, terminal control unit 7, second wireless transceiver 8, dissolved oxygen sensor 9, pH sensor 10, oxygen increasing pump 11, cooling-water temperature sensor 12, optical sensor 13, second display 14, second computer 15, second solenoid valve 16, first solenoid valve 17, first computing machine 18, ammonia nitrogen sensor 19, water depth sensor 20, phosphate anion sensor 21.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
Be provided with booth above culture pond, the dark 1-1.2 rice in pond, pond is wide 10 meters, long 100 meters of pond, and booth mao bamboon or steel skeleton support, and top is coated with 10 Anti-fogging Film.
Embodiment is as shown in Figure 1 a kind of Penaeus Vannmei seedling nutrient solution monitoring device, comprises control end 1 and 5 first terminals be located at above culture pond and 3 the second terminals; Control end comprises master controller 3, storer 2, first wireless transceiver 4, water depth sensor 20, first display 5 being arranged in nutrient solution, alarm 6, first computing machine 18, the second solenoid valve 16 of being located at the first solenoid valve 17 on the water inlet pipe of culture pond and being located on the rising pipe of culture pond; Master controller is electrically connected with storer, the first wireless transceiver, water depth sensor, the first display, alarm, the first computing machine, the first solenoid valve and the second solenoid valve respectively;
As shown in Figure 2 and Figure 3, first terminal includes terminal control unit 7, the second wireless transceiver 8, second display 14, second computer 15, is arranged in the dissolved oxygen sensor 9 of nutrient solution, pH sensor 10, cooling-water temperature sensor 12 and phosphate anion sensor 21; Second terminal, compared with first terminal, adds oxygen increasing pump 11;
The second wireless transceiver, dissolved oxygen sensor, pH sensor, cooling-water temperature sensor, phosphate anion sensor, second display and second computer that the terminal control unit of first terminal and the second terminal is corresponding with it are respectively electrically connected; The oxygen increasing pump that the terminal control unit of the second terminal is all corresponding with it is electrically connected; First wireless transceiver respectively with each the second wireless transceiver wireless connections.First terminal and the second terminal include the optical sensor 13 and ammonia nitrogen sensor 19 that are arranged in nutrient solution, and ammonia nitrogen sensor, optical sensor are electrically connected with corresponding terminal control unit.
First terminal and the second terminal include waterproof case, and control end also comprises status indicator lamp.Master controller and terminal control unit are CC2530 single-chip microcomputer, and each sensor is all electrically connected with corresponding terminal control unit by amplifying circuit.
As shown in Figure 4, a kind of control method of Penaeus Vannmei seedling nutrient solution monitoring device, comprises the steps:
Step 100, critical field is arranged and parameter detecting
The threshold value L of dissolved oxygen DO is stored, the critical field of pH value, water temperature and phosphorus acid ion concentration in storer; Master controller passes through the first wireless transceiver sending threshold value L and each critical field, the second wireless transceiver receive threshold L of each terminal and each critical field; Each working sensor, detects parameters value respectively; Second wireless transceiver of each terminal sends the packet be made up of the detection numerical value of each sensor of this terminal successively with time interval T1;
Step 200, sooner or later automatic water-replacing
Change water time interval the morning being provided with culture pond in master controller, change the critical field of water time interval and the depth of water evening, change water time interval in morning and change evening in water time interval, master controller is respectively according to the depth of water parameter value that water depth sensor detects, control the first solenoid valve and the second solenoid valve opens and cuts out, thus make the depth of water in culture pond be positioned at critical field;
Step 300, to the control of pH value exception
Each terminal control unit reads the numerical value that pH sensor detects, by the numerical value of detection compared with critical field;
Step 310, if the numerical value that the pH sensor of at least one the terminal POT in all terminals detects is not in critical field, then second wireless transceiver of each terminal POT sends the information of pH value exception;
Step 320, master controller reads the numerical value computation of mean values W that all pH sensor detect, if W is positioned at critical field, then master controller is sent by the first wireless transceiver and opens the order of oxygen increasing pump; The oxygen increasing pump work of each the second terminal;
Step 330, after 5 minutes, master controller read all pH sensor detect numerical value and computation of mean values W;
If W is in critical field, proceed to step 400;
If W is not in critical field, main controller controls alarm equipment alarm, the first display display pH value is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows pH value extremely, needs the information of manual intervention;
Step 400, to the control of abnormal DO
Each terminal control unit reads the numerical value that dissolved oxygen sensor detects, by the numerical value of detection compared with critical field;
If the numerical value < L that the dissolved oxygen sensor of any one terminal e detects, then second wireless transceiver of terminal e sends abnormal DO information;
The master controller receiving abnormal DO information sends oxygenation order by the first wireless transceiver; The terminal control unit of each the second terminal controls oxygen increasing pump work, and the numerical value that oxygen increasing pump work detects to dissolved oxygen sensor reaches (1+eac%) L, eac is 20;
Step 500, to the control of water temperature exception
The numerical value that the cooling-water temperature sensor that master controller reads each terminal detects, calculates water temperature average W1,
If W1 is not in critical field, main controller controls alarm equipment alarm, the first display display water temperature is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows water temperature extremely, needs the information of manual intervention;
Step 600, to the control of phosphorus acid ion concentration exception
The numerical value that the phosphate anion sensor that master controller reads each terminal detects, calculates phosphate anion average W11, W11 and critical field is compared;
When W11 is not in critical field, main controller controls alarm equipment alarm, the first display display phosphorus acid ion concentration is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display phosphorus acid ion concentration of each terminal is abnormal, needs the information of manual intervention;
Step 700, to the control of ammonia nitrogen exception
Terminal control unit reads the numerical value that ammonia nitrogen sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates ammonia nitrogen average W3, W3 and the ammonia nitrogen threshold value L11 preset is compared;
As W3 >=L11, main controller controls alarm equipment alarm, the first display display pond culture pond D ammonia nitrogen is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display ammonia nitrogen of each terminal is abnormal, needs the information of manual intervention;
Step 800, to the control of illumination exception
Terminal control unit reads the numerical value that optical sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates illumination average W2, W2 and critical field is compared;
When W2 is not in critical field, main controller controls alarm equipment alarm, the first display display light, according to abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display light of each terminal, according to abnormal, needs the information of manual intervention; Proceed to step 200.
Embodiment 2
Embodiment 2 comprises all structures in embodiment 1 and step part, also comprises the steps: in embodiment 2
Set the critical field of pH sensor as [R
1, R
2], master controller obtains t
i-dmoment is to current time t
ipH sensor detect the curve S (t) of average, t
i-dfor t
iin the moment before, the two differs time d; Volatilization and decomposition threshold SNR is prestored in storer
w;
S (t) is inputted the accidental resonance model prestored in memory by master controller
in;
Wherein, x (t) is the displacement of vibration particle, and Ω is angular frequency, f
0be signal frequency, A is constant, r and ω is the attenuation coefficient of setting and the frequency of linear oscillator particle respectively, and c is the signal adjustment coefficient of setting, and b is the quadratic noise ξ of setting
2t the coefficient of (), ξ (t) is three discrimination noises, and { dismutation of noise follows Poisson distribution to ξ (t) ∈ for-a, 0, a}, a > 0, and its probability distribution is p
s(a)=p
s(-a)=q, p
s(0)=1-2q, wherein 0 < q < 0.5;
Noise average and correlativity follow < ξ (t) >=0, < ξ (t) ξ (t+ τ) >=2qa
2e
-λ τ;
Wherein λ is correlation ratio, and the flatness of three discriminations noise ξ (t) is
When model resonates, particle produces resonance in certain position, and this angular frequency Ω, attenuation coefficient r, correlation ratio λ, coefficient b, constant a, q determine;
Master controller utilizes formula
calculate and obtain the output signal-to-noise ratio SNR corresponding with S (t);
As SNR>=SNR
wtime, change the critical field of pH sensor into [q
1r
1, q
2r
2], wherein, 0.8 < q
1< 1,1 < q
2< 1.1.
In embodiment 1 and embodiment 2, the critical field of pH value is 7.2-8.5; The critical field of water temperature is 20 DEG C-25 DEG C; The critical field of the depth of water is 40-60cm; Early change water time interval for [5:00,10:00], change water time interval evening for [18:00,22:00]; L is 6.1mg/L.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (10)
1. a Penaeus Vannmei seedling nutrient solution monitoring device, is characterized in that, comprises control end (1) and m first terminal being located at above culture pond and n the second terminal, n < m; Described control end comprises master controller (3), storer (2), the first wireless transceiver (4), the water depth sensor (20) being arranged in nutrient solution, the first display (5), alarm (6), the first computing machine (18), the second solenoid valve (16) of being located at the first solenoid valve (17) on the water inlet pipe of culture pond and being located on the rising pipe of culture pond; First terminal includes terminal control unit (7), second wireless transceiver (8), second display (14), second computer (15), is arranged in the dissolved oxygen sensor (9) of nutrient solution, pH sensor (10), cooling-water temperature sensor (12) and phosphate anion sensor (21); Second terminal, compared with first terminal, adds oxygen increasing pump (11);
Master controller is electrically connected with storer, the first wireless transceiver, water depth sensor, the first display, alarm, the first computing machine, the first solenoid valve and the second solenoid valve respectively; The second wireless transceiver, dissolved oxygen sensor, pH sensor, cooling-water temperature sensor, phosphate anion sensor, second display and second computer that the terminal control unit of first terminal and the second terminal is corresponding with it are respectively electrically connected; The oxygen increasing pump that the terminal control unit of the second terminal is all corresponding with it is electrically connected; First wireless transceiver respectively with each the second wireless transceiver wireless connections.
2. Penaeus Vannmei seedling nutrient solution monitoring device according to claim 1, it is characterized in that, first terminal and the second terminal include the optical sensor (13) and ammonia nitrogen sensor (19) that are arranged in nutrient solution, and ammonia nitrogen sensor, optical sensor are electrically connected with corresponding terminal control unit.
3. Penaeus Vannmei seedling nutrient solution monitoring device according to claim 1, it is characterized in that, described first terminal and the second terminal include waterproof case, and control end also comprises status indicator lamp.
4. the soilless culture nutrient solution automaton according to claim 1 or 2 or 3, it is characterized in that, master controller and terminal control unit are CC2530 single-chip microcomputer, and each sensor is all electrically connected with corresponding terminal control unit by amplifying circuit.
5. be applicable to a control method for Penaeus Vannmei seedling nutrient solution monitoring device according to claim 1, it is characterized in that, comprise the steps:
(5-1) the threshold value L of dissolved oxygen DO is stored in storer, the critical field of pH value, water temperature and phosphorus acid ion concentration; Master controller passes through the first wireless transceiver sending threshold value L and each critical field, the second wireless transceiver receive threshold L of each terminal and each critical field; Each working sensor, detects parameters value respectively; Second wireless transceiver of each terminal sends the packet be made up of the detection numerical value of each sensor successively with time interval T1;
(5-2) change water time interval the morning being provided with culture pond in master controller, change the critical field of water time interval and the depth of water evening, change water time interval in morning and change evening in water time interval, master controller is respectively according to the depth of water parameter value that water depth sensor detects, control the first solenoid valve and the second solenoid valve opens and cuts out, thus make the depth of water in culture pond be positioned at critical field;
(5-3) each terminal control unit reads the numerical value that pH sensor detects, by the numerical value of detection compared with critical field;
If the numerical value that the pH sensor of at least one the terminal POT (5-3-1) in all terminals detects is not in critical field, then second wireless transceiver of each terminal POT sends the information of pH value exception;
(5-3-2) master controller reads the numerical value computation of mean values W that all pH sensor detect, if W is positioned at critical field, then master controller is sent by the first wireless transceiver and opens the order of oxygen increasing pump; The oxygen increasing pump work of each the second terminal;
(5-3-3) after time T, master controller read all pH sensor detect numerical value and computation of mean values W;
If W is in critical field, proceed to step (5-4);
If W is not in critical field, main controller controls alarm equipment alarm, the first display display pH value is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows pH value extremely, needs the information of manual intervention;
(5-4) each terminal control unit reads the numerical value that dissolved oxygen sensor detects, by the numerical value of detection compared with critical field;
If the numerical value < L that the dissolved oxygen sensor of any one terminal e detects, then second wireless transceiver of terminal e sends abnormal DO information;
The master controller receiving abnormal DO information sends oxygenation order by the first wireless transceiver; The terminal control unit of each the second terminal controls oxygen increasing pump work, and the numerical value that oxygen increasing pump work detects to dissolved oxygen sensor reaches (1+eac%) L, eac is 20 to 40;
(5-5) numerical value that the cooling-water temperature sensor that master controller reads each terminal detects, calculates water temperature average W1,
If W1 is not in critical field, main controller controls alarm equipment alarm, the first display display water temperature is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and the second display of each terminal all shows water temperature extremely, needs the information of manual intervention;
(5-6) numerical value that the phosphate anion sensor that master controller reads each terminal detects, calculates phosphate anion average W11, W11 and critical field is compared;
When W11 is not in critical field, main controller controls alarm equipment alarm, the first display display phosphorus acid ion concentration is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display phosphorus acid ion concentration of each terminal is abnormal, needs the information of manual intervention; Proceed to step (5-2).
6. the control method of Penaeus Vannmei seedling nutrient solution monitoring device according to claim 5, first terminal and the second terminal include the optical sensor (13) and ammonia nitrogen sensor (19) that are arranged in nutrient solution, and ammonia nitrogen sensor, optical sensor are electrically connected with corresponding terminal control unit; It is characterized in that, also comprise the steps:
(6-1) terminal control unit reads the numerical value that ammonia nitrogen sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates ammonia nitrogen average W3, W3 and the ammonia nitrogen threshold value L11 preset is compared;
As W3 >=L11, main controller controls alarm equipment alarm, the first display display pond culture pond D ammonia nitrogen is abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display ammonia nitrogen of each terminal is abnormal, needs the information of manual intervention;
(6-2) terminal control unit reads the numerical value that optical sensor detects, and the second wireless transceiver sends the numerical value detected, and master controller calculates illumination average W2, W2 and critical field is compared;
When W2 is not in critical field, main controller controls alarm equipment alarm, the first display display light, according to abnormal, needs the information of manual intervention; Meanwhile, the first wireless transceiver sends alarm command, and each second display display light of each terminal, according to abnormal, needs the information of manual intervention.
7. the control method of Penaeus Vannmei seedling nutrient solution monitoring device according to claim 5, is characterized in that, also comprise the steps:
Set the critical field of described pH sensor as [R
1, R
2], master controller obtains t
i-dmoment is to current time t
ipH sensor detect the curve S (t) of average, t
i-dfor t
iin the moment before, the two differs time d; Volatilization and decomposition threshold SNR is prestored in storer
w;
S (t) is inputted the accidental resonance model prestored in memory by master controller
in;
Wherein, x (t) is the displacement of vibration particle, and Ω is angular frequency, f
0be signal frequency, A is constant, r and ω is the attenuation coefficient of setting and the frequency of linear oscillator particle respectively, and c is the signal adjustment coefficient of setting, and b is the quadratic noise ξ of setting
2t the coefficient of (), ξ (t) is three discrimination noises, and { dismutation of noise follows Poisson distribution to ξ (t) ∈ for-a, 0, a}, a > 0, and its probability distribution is p
s(a)=p
s(-a)=q, p
s(0)=1-2q, wherein 0 < q < 0.5;
Noise average and correlativity follow < ξ (t) >=0, < ξ (t) ξ (t+ τ) >=2qa
2e
-λ τ;
Wherein λ is correlation ratio, and the flatness of three discriminations noise ξ (t) is
When model resonates, particle produces resonance in certain position, and this angular frequency Ω, attenuation coefficient r, correlation ratio λ, coefficient b, constant a, q determine;
Master controller utilizes formula
calculate and obtain the output signal-to-noise ratio SNR corresponding with S (t);
As SNR>=SNR
wtime, change the critical field of pH sensor into [q
1r
1, q
2r
2], wherein,
8. the control method of Penaeus Vannmei seedling nutrient solution monitoring device according to claim 5, is characterized in that, the critical field of pH value is 7.2-8.5; The critical field of water temperature is 20 DEG C-25 DEG C.
9. the control method of Penaeus Vannmei seedling nutrient solution monitoring device according to claim 5, is characterized in that, the critical field of the depth of water is 40-60cm; Early change water time interval for [5:00,10:00], change water time interval evening for [18:00,22:00].
10. the control method of the Penaeus Vannmei seedling nutrient solution monitoring device according to claim 5 or 6 or 7 or 8 or 9, it is characterized in that, L is 5.9mg/L-6.5mg/L.
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