CN206282125U - A kind of fertilizer applicator automatic control system - Google Patents

A kind of fertilizer applicator automatic control system Download PDF

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Publication number
CN206282125U
CN206282125U CN201621410603.XU CN201621410603U CN206282125U CN 206282125 U CN206282125 U CN 206282125U CN 201621410603 U CN201621410603 U CN 201621410603U CN 206282125 U CN206282125 U CN 206282125U
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note
fertilizer
module
fertile
control system
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CN201621410603.XU
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杨宇
张国峰
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Hebei Profit Agriculture Water Saving Science And Technology Co Ltd
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Hebei Profit Agriculture Water Saving Science And Technology Co Ltd
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Abstract

The utility model provides a kind of fertilizer applicator automatic control system, including host computer and slave computer.The host computer is communicated with slave computer by data communication module, the slave computer includes the fertile machine data acquisition module of note and the fertile machine data outputting module of note, the fertile machine data acquisition module of note is used to gather flow, liquid level, EC and pH value, and the flow of collection, liquid level, EC and pH value are sent into the host computer;The host computer is used for according to preset control parameters, and fertilizer solution concentration is controlled by the fertile machine data outputting module of the note;The fertile pump of note is provided with DC speed regulation module, and the note fertilizer path is provided with Hall flow sensor, and the note fertilizer machine data outputting module is adjusted the rotating speed of the fertile pump of the note by the DC speed regulation module, is used to control fertilizer-injecting flow rate.The utility model ensure that complete period balance fertilizing concentration, and the precision and automaticity of fertilizer applicator is greatly improved.

Description

A kind of fertilizer applicator automatic control system
Technical field
The utility model belongs to agricultural irrigation technology, and in particular to a kind of fertilizer applicator automatic control system.
Background technology
The fertilizing equipment commonly used in current agricultural production mainly has three major types:Differential, venturi type and pumped type.Pressure difference Formula fertilizer applicator simple structure, it is easy to use, but with the carrying out of fertilising process, fertilizer solution concentration can be reduced gradually, uniformity of applying fertilizer Difference, and the regulation of fertilising speed needs the aperture of manual adjustment valve, changes the flow of bypass pipe to realize, fertilising speed and fertilizer Liquid concentration is difficult to control accurate;Development of Venturi Fertilizer Applicator can be realized applying fertilizer in proportion, can keep constant during fertilising Fertilizer solution concentration, but fertilising speed depends primarily on the size for producing negative pressure, cannot be to fertilizer solution concentration and fertilising speed during fertilising Degree carries out control accurate;Pumping fertilization method can ensure that fertilizer solution concentration is constant, but need someone to guard during irrigation fertilization, with Prevent liquid level in complex fertilizer case too low, water pump suction air, influence operation, and fertilizer solution concentration is difficult to precisely tune in running Control.Based on problem above, it is necessary to a kind of automatic control system, can be to the fertilizer solution concentration of fertilizer applicator, dose, fertilization time etc. Control accurate is carried out, to improve fertilizer applicator automaticity.
It is that multichannel notes fertile path in parallel to note fertile machine due to full-automatic ratio, and conventional control system needs manually or borrows at present Help the time relay or time switch, by calculate " time period " control the switching of magnetic valve control the fertile speed of adjustment note and Fertilizer-injecting quantity etc., is difficult to carry out control accurate to fertilizer solution concentration, it is impossible to realize the balanced proportional injection of fertilizer in regulating cycle, The requirement of modernization precision agriculture can not be met, and fertilizer solution belongs to high salt faintly acid liquid, has stronger corruption to metal Corrosion, can cause electromagnetism valve events sluggish or failure after longtime running, influence the normal operation of equipment.
Utility model content
The purpose of this utility model is for fertilizer applicator dose, fertilizer solution concentration etc. are difficult to be precisely controlled in the prior art Problem, there is provided a kind of PLC (fertilizer applicator) automatic control system, be used to realize fertilization program and EC/pH values according to setting, flow The real-time monitoring value of the information such as amount, liquid level, carries out water-fertilizer conditioning in time, improves existing fertilization control system operation numerous Trivial, the big shortcoming of error improves fertilizer applicator control accuracy and automaticity.
Embodiment of the present utility model provides a kind of fertilizer applicator automatic control system, and it is applied to be noted with multi-channel parallel The note fertilizer machine of fertile path.The fertile machine of note includes the note fertilizer pump on the fertile path of each note, the fertile path of note and complex fertilizer case UNICOM.Control System includes host computer and slave computer, and host computer is communicated with slave computer by data communication module, and slave computer includes note fertilizer Machine data acquisition module and the fertile machine data outputting module of note, the fertile machine data acquisition module of note are used to gather flow, liquid level, EC and pH Value, and the data messages such as the flow of collection, liquid level, EC and pH value are sent to host computer, host computer is used for according to default control Parameter, fertilizer solution concentration is controlled by noting fertile machine data outputting module;The fertile pump of note is provided with DC speed regulation module, and the fertile path of note is provided with Hall flow sensor, the fertile machine data outputting module of note adjusts the rotating speed of the fertile pump of note by DC speed regulation module, is used to control note Fertile flow.
Further, noting fertile machine also includes irrigation pump and water injecting electromagnetic valve, and host computer is additionally operable to according to preset control parameters, Regulate and control the irrigation flow and water injecting electromagnetic valve injection flow of irrigation pump by noting fertile machine data outputting module.
Further, slave computer also includes alarm module, and alarm module is used for according to fertilizer solution concentration predetermined threshold value, complex fertilizer case liquid Position predetermined threshold value is alarmed.
Further, alarm module includes light warning module, and light warning module is connected with alarm lamp, for passing through Light flash is alarmed.
Further, alarm module includes also including voice alarm module that voice alarm module is used to enter by voice message Row alarm.
The beneficial effects of the utility model are compared with prior art:Ensure that the complete period applies fertilizer concentration in a balanced way, significantly Degree improves the precision and automaticity of fertilizer applicator.
Brief description of the drawings
Fig. 1 shows the structured flowchart of the embodiment of the utility model one;
Fig. 2 shows the fundamental diagram of the embodiment of the utility model one.
Specific embodiment
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
The utility model is described further with reference to instantiation and Figure of description.
Shown in ginseng Fig. 1 to Fig. 2, a kind of fertilizer applicator automatic control system is present embodiments provided, it is applied to multichannel The note fertilizer machine of the fertile path of parallel connection note, the fertile machine of note includes the note fertilizer pump 23 on the fertile path of each note, the fertile path of note and complex fertilizer case UNICOM.Control system includes host computer and slave computer, and host computer is communicated with slave computer by data communication module 11.It is the next Machine includes the fertile machine data acquisition module 21 of note and the fertile machine data outputting module 22 of note, and the fertile machine data acquisition module 21 of note is used to gather Flow, liquid level, EC and pH value, and the data messages such as the flow of collection, liquid level, EC and pH value are sent to host computer;Host computer For according to preset control parameters, fertilizer solution concentration being controlled by noting fertile machine data outputting module 22;The fertile pump 23 of note is provided with direct current tune Fast module, the fertile path of note is provided with Hall flow sensor, and the fertile machine data outputting module 22 of note is adjusted by DC speed regulation module The rotating speed of the fertile pump 23 of note, is used to control fertilizer-injecting flow rate.
The automatic control system that the present embodiment is provided, using PLC control system, EC/pH value, liquid of the system according to collection Position, the signal of flow, send corresponding control command and the frequency of straightway pump are adjusted, and realize flow velocity from the electrodeless tune of 0-100% Speed, it is ensured that fertilizer can uniformly mix in strict accordance with setting ratio in the fertigation cycle, reaches high-end industrialized agriculture to fertilising High standards.The PLC automatic control system, can carry out real-time monitoring to data messages such as flow, liquid level, EC/pH values, and According to the fertilization program of setting, it is analyzed by the analog signalses for gathering, and sends corresponding control instruction, can be in good time Liquid manure supply is carried out exactly.Can realize that multi-path direct current drive notes fertile pump by PLC control system electrodeless from 0-100% Speed governing.In regulating cycle, when EC/pH values are surveyed more than setup parameter value, system adjust automatically DC motor speed, with true Protect the fertile path of each note and press setting ratio mixed fertilizer, fertigation uniformly can reach more than 98%.
In the present embodiment, noting fertile machine also includes irrigation pump 24 and water injecting electromagnetic valve 25, and host computer is additionally operable to according to pre- If control parameter, the note for irrigating flow and water injecting electromagnetic valve 25 of irrigation pump 24 is regulated and controled by noting fertile machine data outputting module 22 Water-carrying capacity.
In the present embodiment, slave computer also includes alarm module, and alarm module is used for according to fertilizer solution concentration predetermined threshold value, mixes Fertilizer box liquid level predetermined threshold value is alarmed.
In the present embodiment, alarm module includes light warning module, and light warning module is connected with alarm lamp 26, For being alarmed by light flash.
In the present embodiment, alarm module also includes voice alarm module, and voice alarm module is used to pass through voice message Alarmed, such as pointed out " fertilizer solution concentration is exceeded " when fertilizer solution concentration exceedes threshold value, combined by sound, light alarm, police can be improved Show effect.
The utility model is further described in detail below:
Under the fertile machine normal operating conditions of full-automatic ratio note that the present embodiment is provided, after complex fertilizer case control valve is opened, Current are introduced from main line, note fertile path (A~D) in four roads pumps high concentration solution under DC electropump driving, and the two is mixed After being mixed in fertilizer box, then through in the fertile pumped back main line of main note.Solution flow in complex fertilizer case in water and each path etc. Can be adjusted by control system, so as to keep water population equilibrium in complex fertilizer case, and the fertile path of each note is respectively according to setting The uniform and stable injection solution within the fertigation cycle of definite value, it is ensured that fertigation quality, improves water and fertilizer utilization.
The control system that the present embodiment is provided is by host computer (host computer data monitoring, automatic control unit) and slave computer (the next data feedback, automatic execution unit) is constituted.Host computer uses touch-screen, and can be input into control by user interface refers to Make, inquiry system information etc.;Slave computer is designed using programmable logic controller (PLC), realizes collection sensor signal, output control The functions such as instruction, the operation of control device.The present embodiment is passed through using Computer Control Technology and Programmable logical controller technology Enter control of the line frequency regulation realization to fertilizer solution concentration, fertigation amount and fertigation time to straightway pump, it is ensured that fertilizer applicator Liquid manure is automatically fed by the fertilization program of setting.
In control system, slave computer can carry out real-time monitoring to flow, liquid level, EC/pH values etc., and system is by collection Arrive analog quantity analysis, according to setting fertilization program, send corresponding control instruction, realize the keying of magnetic valve control, The frequency regulation and the monitoring of fertilizer applicator running status of straightway pump, so as to be adjusted to fertilising process.Wherein, EC/PH values are The main control parameters of the fertile pump discharge regulation of note.The EC/PH value informations of conductivity meter and the pH meter measurement installed on pipeline pass through The Analog input mModule of PLC enters slave computer, by the treatment of slave computer, when EC/pH values change, and PLC controls system System can make corresponding regulation, when EC/pH values increase, straightway pump according to the feedback information for receiving, the frequency to straightway pump Frequency reduction, the fertile machine flow velocity of note reduces, fertilizer solution concentration reduction, and vice versa;When EC values are excessive, pH value exceeds normal range (NR) (5.5 ~7.5) when, trigger warning system, send alarm, prevent fertilizer solution concentration excessive, cause crop burn seedlings.
Control system mainly gathers flow to Flow-rate adjustment process by the Hall flow sensor on pipeline Information, slave computer is entered by the Analog input mModule of PLC, by the treatment of slave computer, is contrasted with programmed values, Control system exports DC speed regulation signal to DC speed regulation module according to comparing result, so that drive straightway pump to change rotating speed, directly Meet sets requirement to flow measurement, be somebody's turn to do " measurement-signal change-contrast-regulate and control-is measured again " and constantly circulate, formation is closed Ring control loop.
Control system can be also adjusted by the monitoring to complex fertilizer case liquid level to its working condition.Liquid level sensor is gathered To liquid level information enter slave computer through the Analog input mModule of PLC control system, after data processing with setting value contrast, When level value is surveyed more than the maximum level value of setting or less than minimum level value, warning system is triggered, send alarm, while Reduce (increase) water inlet valve aperture, flow of inlet water reduces (increase), and the EC/pH values in complex fertilizer case change, corresponding The frequency of the fertile pump of note accordingly reduces (increase), until EC/pH values reach setting value again.Can effectively be kept away by the control system Exempt from liquid level too high, cause solution spilling and liquid level too low, water pump suction air influences system operation.
The utility model provides a kind of fertilizer applicator control system, has the following technical effect that:
1st, can be with the data messages such as Real-time Collection flow, liquid level, EC/pH values, PLC controls by PLC information acquisition modules System is analyzed analog quantity by information, sends corresponding control instruction, and 0-100% flow velocity stepless changing is realized to the fertile pump of note (DC continuous speed regulation), it is ensured that the complete period applies fertilizer concentration in a balanced way, is greatly improved the precision and automation journey of fertilizer applicator Degree.
2nd, PLC automatic control system is by the liquid level and EC/pH value informations that gather, liquid level that can be in real-time monitoring complex fertilizer case And EC/pH value situations, sent out in time during when the low liquid level value that liquid level is set less than system or higher than high level value or abnormal EC/pH values Go out alarm, and adjust the frequency of water pump, prevent liquid level too low, cause water pump to suck air, influence system operation or fertilizer solution concentration It is too high, cause burn seedlings.
The a series of tool described in detail only for feasibility implementation method of the present utility model of those listed above Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from the utility model skill spirit Equivalent implementations or change should be included within protection domain of the present utility model.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.

Claims (5)

1. a kind of fertilizer applicator automatic control system, is applied to be noted with multi-channel parallel the note fertilizer machine of fertile path, the note fertilizer machine bag Include the note fertilizer pump on the fertile path of each note, the note fertilizer path and complex fertilizer case UNICOM, it is characterised in that the control system Including host computer and slave computer, the host computer is communicated with slave computer by data communication module, and the slave computer includes The fertile machine data acquisition module of note and the fertile machine data outputting module of note, the note fertilizer machine data acquisition module are used to gather flow, liquid Position, EC and pH value, and the flow of collection, liquid level, EC and pH value are sent to the host computer;The host computer is used for according to pre- If control parameter, fertilizer solution concentration is controlled by the fertile machine data outputting module of the note;The fertile pump of note is provided with DC speed regulation module, The fertile path of note is provided with Hall flow sensor, and the note fertilizer machine data outputting module is adjusted by the DC speed regulation module The rotating speed of the fertile pump of the section note, is used to control fertilizer-injecting flow rate.
2. a kind of fertilizer applicator automatic control system according to claim 1, it is characterised in that the note fertilizer machine also includes filling Water pump and water injecting electromagnetic valve are irrigate, the host computer is additionally operable to according to preset control parameters, by the fertile machine data output mould of the note Block regulates and controls the irrigation flow and water injecting electromagnetic valve injection flow of the irrigation pump.
3. a kind of fertilizer applicator automatic control system according to claim 2, it is characterised in that the slave computer also includes report Alert module, the alarm module is used to be alarmed according to fertilizer solution concentration predetermined threshold value, complex fertilizer case liquid level predetermined threshold value.
4. a kind of fertilizer applicator automatic control system according to claim 3, it is characterised in that the alarm module includes lamp Light alarm module, the light warning module is connected with alarm lamp, for being alarmed by light flash.
5. a kind of fertilizer applicator automatic control system according to claim 4, it is characterised in that the alarm module also includes Voice alarm module, the voice alarm module is used to be alarmed by voice message.
CN201621410603.XU 2016-12-21 2016-12-21 A kind of fertilizer applicator automatic control system Active CN206282125U (en)

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CN201621410603.XU CN206282125U (en) 2016-12-21 2016-12-21 A kind of fertilizer applicator automatic control system

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107493786A (en) * 2017-08-24 2017-12-22 昆明理工大学 A kind of Development of Venturi Fertilizer Applicator fertilzer sucking pipe flow control device and its control method
CN110063249A (en) * 2019-04-24 2019-07-30 校瑞华 Nutrient solution system and its control method for plantation
CN111468031A (en) * 2020-03-17 2020-07-31 江苏大学 Automatic and accurate water and fertilizer proportioning control system and control method for sprinkling irrigation unit
CN111727713A (en) * 2020-05-14 2020-10-02 山东农业大学 Simple water and fertilizer integrated automatic control fertilizer injection system and method for orchard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107493786A (en) * 2017-08-24 2017-12-22 昆明理工大学 A kind of Development of Venturi Fertilizer Applicator fertilzer sucking pipe flow control device and its control method
CN110063249A (en) * 2019-04-24 2019-07-30 校瑞华 Nutrient solution system and its control method for plantation
CN111468031A (en) * 2020-03-17 2020-07-31 江苏大学 Automatic and accurate water and fertilizer proportioning control system and control method for sprinkling irrigation unit
CN111727713A (en) * 2020-05-14 2020-10-02 山东农业大学 Simple water and fertilizer integrated automatic control fertilizer injection system and method for orchard

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