CN114303562A - Liquid manure control system based on 485 bus forms - Google Patents
Liquid manure control system based on 485 bus forms Download PDFInfo
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Abstract
The invention discloses a 485 bus form-based water and fertilizer machine control system, which comprises a stirring operation module, a pH value and EC value setting module, an irrigation/fertilization mode switching module, a manual/automatic mode switching module, a manual starting button, a data acquisition display module, a source water pump state module, a booster pump state module, a fertilization channel module and an irrigation planning module, wherein the water and fertilizer machine control system and serial port controllers of the modules are separately installed, a platform touch screen is taken as a core, a 485 bus form is adopted, and a control instruction is sent to the controllers through serial ports of the touch screen, so that relays on the controllers act to realize control functions of the modules. This liquid manure machine control system based on 485 bus form adopts the 485 bus mode, utilizes Modbus communication protocol, has greatly improved the extending capability, and integrated quick, reliable and stable, has both practiced thrift the cost, has also increased the number of valve passageway simultaneously, has satisfied the actual demand of more peasant households.
Description
Technical Field
The invention relates to the technical field related to agricultural automation, in particular to a water and fertilizer machine control system based on a 485 bus form.
Background
Along with the improvement of agricultural automation level, when some field cash crops were cultivated, the automatic liquid manure integration technique of agricultural can be used usually, will irrigate and fertilize and combine together, confirms crop root soil position with the help of pipeline pressure with fertile liquid and irrigation level, according to the crop growth demand, the ratio of nimble stable control moisture and nutrient provides, satisfies the crop growth demand, improves economic benefits.
Most of the liquid manure machines in the current market adopt a configuration mode of a PLC and a touch screen for control, in the existing liquid manure machine control mode, the PLC is used as a core, the liquid manure machine is a liquid manure all-in-one machine based on PLC control, used control software is stored in the PLC, 128 paths can be supported by expandable valve channels, on one hand, due to the fact that the cost of the PLC is high, on the other hand, for a few users, a planting area is large, the distribution is wide, due to the fact that the liquid manure machine is in wired connection with valve control in the field, a large number of valve power lines need to be pulled if the distance is too far, the voltage drop problem exists, valve control cannot be effectively conducted, or a method of adding one liquid manure machine is directly adopted for separate control, the two methods seriously increase the cost, and the burden of farmers is increased.
Aiming at the problems, the novel design is carried out on the basis of the original water and fertilizer machine control system.
Disclosure of Invention
The invention aims to provide a 485 bus form-based water and fertilizer machine control system, and aims to solve the problems that the water and fertilizer machine control system in the background art is high in cost and use cost, poor in expansibility and not suitable for being used in a farmer planting area to effectively control valves.
In order to achieve the purpose, the invention provides the following technical scheme: a485 bus-based water and fertilizer machine control system comprises a stirring operation module, a pH value and EC value setting module, an irrigation/fertilization mode switching module, a manual/automatic mode switching module, a manual start button, a data acquisition display module, a source water pump state module, a booster pump state module, a fertilization channel module and an irrigation planning module;
the water and fertilizer machine control system and each module serial port controller are separately installed in an RS-485 transmission mode;
the liquid manure control system is provided with a communication interface using a Modbus communication protocol for carrying out remote communication with a big data platform, a platform touch screen is taken as a core, a 485 bus form is adopted, and a control instruction is sent to a controller through a serial port of the touch screen, so that a relay on the controller acts, and the control function of each module is realized;
the control of touch-sensitive screen and 16 serial port controllers realization to liquid manure machine, each serial port controller has 16 valve passageways, and based on Modbus's agreement, 1~254 serial port controllers under a touch-sensitive screen serial ports.
Preferably, the working process of the stirring operation module is that stirring time length is set firstly, stirring start is pressed after the setting is finished, stirring is started, stirring countdown is synchronously counted, and stirring operation is automatically stopped when the countdown is reset to zero;
when the stirring is started by pressing or the countdown is zero, the touch screen sends a control instruction to the controller, the controller firstly checks the validity of the control instruction, if the control instruction is invalid, the control instruction is not executed, if the control instruction is valid, the controller starts or stops the power supply of the stirring motor, so that the stirring motor is operated or stopped, the impeller in the fertilizer mixing barrel is driven to rotate or stop, the water and fertilizer mixed liquid in the fertilizer mixing barrel is stirred to rotate or stop, and the stirring function is finished.
By adopting the technical scheme, the stirring operation of the stirring operation module is remotely controlled in a mode of matching the touch screen control with the 485 bus.
Preferably, the pH value and EC value setting module collects the pH value and EC value in real time and displays the pH value and EC value in the collected data display module through a sensor arranged on the pipeline in the fertilizing state, and the water fertilizer can automatically open and close the electromagnetic valve of the fertilizing barrel and the booster pump according to the set value and the current value, so that the pH value and EC value of the fertilizer liquid in the pipeline are stably in the set region range.
By adopting the technical scheme, the pH value and EC value are set by the pH value and EC value setting module in cooperation with the acquired data display module to remotely monitor the stability of the pH value and EC value.
Preferably, irrigation/fertilization mode switching module is under the irrigation state, no matter whether choose for use fertilization passageway module control fertilization passageway solenoid valve, can not open passageway solenoid valve and booster pump, only can open the source water pump of source water pump state module, only provide water for the crop and irrigate the operation, under the fertilization mode, open the booster pump that inhales fertile passageway and booster pump state module through choosing for use fertilization passageway module fertilization passageway solenoid valve and realize mixing fertile to fertilize the operation.
By adopting the technical scheme, the operation requirements of irrigation and fertilization can be flexibly adjusted at the control end.
Preferably, the manual/automatic mode switching module is in a manual mode, the time setting of the irrigation planning module is invalid, and the equipment can be turned on and off only by a manual start button;
in the automatic mode, the time of the irrigation planning module can be set by itself, the time is the starting time of the equipment, 8 groups can be set, after each time is set, the 'off' position behind the time is clicked to enable the time to be in the 'on' state, the set irrigation plan is automatically started at the time, after the automatic execution of the irrigation plan is finished, the system automatically stops and waits for the starting of the next time point, and if the button behind the time is in the 'off' state, even if the time is set, the system cannot be started when the time is reached.
By adopting the technical scheme, the automatic irrigation plan operation presetting adjustment is provided.
Preferably, after the manual starting button sets the irrigation plan of the irrigation planning module in the manual mode, the device is started according to the irrigation plan by pressing the manual starting button, and after the set irrigation plan is completed, the button is recovered, meanwhile, the device stops working, the system is in a standby state, and waits for the next starting.
By adopting the technical scheme, the irrigation planning adjustment is further controlled by manually starting the button when necessary.
Preferably, the collected data display module is a collected data display area of the touch screen and is used for displaying the current pH value and EC value of the fertilizer water collected by the pH sensor and the EC sensor installed in the main pipe.
By adopting the technical scheme, remote monitoring is convenient to carry out between the collected data display modules of the touch screen.
Preferably, the source water pump state module displays the state of the source water pump, and the source water pump is in an open state when general equipment runs;
the booster pump state module shows the state of the booster pump, and the booster pump can be in an opening state only when the normal fertilization state is realized and at least one fertilizer sucking channel electromagnetic valve is opened.
By adopting the technical scheme, the corresponding water pump is controlled and adjusted to work during irrigation or fertilization by the source water pump state module and the booster pump state module.
Preferably, fertilization passageway module is used for setting up the fertilization passageway, under the fertilization mode, can set up specifically which fertilizer liquid that uses in mixing fertile bucket fertilizes, and the cooperation is gathered data display module EC value and is detected the concentration of guaranteeing the fertilizer liquid of trunk line and stablize in the interval within range of settlement simultaneously.
By adopting the technical scheme, different water fertilizers can be flexibly matched and adjusted through different fertilizing channels, and continuous fertilizing operation among different fertilizer mixing barrels is facilitated.
Preferably, the irrigation planning module is used for irrigation planning setting, numbers 1-10 are set as irrigation area numbers, the click button displays green to indicate that the irrigation area is selected, otherwise, the selection button does not select the irrigation area, a prompt lamp is arranged on the left side of the selection button, and the right side of the selection button can set irrigation duration of the irrigation area;
and after the setting of all the irrigation areas is finished, starting the system, and performing rotation irrigation according to the selected irrigation areas, namely sequentially performing irrigation of the irrigation areas.
By adopting the technical scheme, the expansion capability of the 485 bus mode is matched, so that the irrigation adjustment can be controlled by the segments of a large-area conveniently.
Compared with the prior art, the invention has the beneficial effects that: the water and fertilizer machine control system based on the 485 bus form,
1. the touch screen is used as the core, a 485 bus form is adopted, a communication protocol adopts a Modbus communication protocol, a control instruction is sent to the controller through a serial port of the touch screen, a relay on the controller acts to realize the control function of the liquid manure machine, meanwhile, a communication interface adopting the Modbus communication protocol is also matched in the system to carry out remote communication with a large data platform, the liquid manure machine is controlled by sending the control instruction to the platform, and a data reading instruction is sent to acquire the current collector data and the current working state;
2. according to the invention, from the aspect of saving cost, a 485 bus mode is adopted, a Modbus communication protocol is utilized, the expansion capability is greatly improved, the integration is rapid, stable and reliable, the touch screen and the 16-channel serial controllers are used for controlling the liquid manure machine, each serial controller is provided with 16 valve channels, based on the protocol agreement of Modbus, 1-254 serial controllers are connected under one touch screen serial port, the number of the valve channels is far more than 128, the expandability is good, and convenience is brought to farmer's field piece area planting;
3. for farmers who are not centralized in distribution of planting areas and are scattered, the mode that the water and fertilizer machine and the serial port controller are installed separately is adopted, the RS-485 transmission mode is adopted, the farthest transmission distance can reach 1200 meters, the serial port controller can be installed on the periphery of a valve to be controlled, and only one data line is needed to be used for communication with the water and fertilizer machine, so that the number of valve channels is increased under the condition of saving cost, and the actual requirements of more farmers are met.
Drawings
Fig. 1 is a flow chart of a control mode of a water fertilizer machine.
Fig. 2 is a field wiring installation diagram of the present invention.
Fig. 3 is a flow chart of an original water manure control mode.
Fig. 4 is an installation diagram of the existing field wiring.
Fig. 5 is a schematic view of an operation interface of the water fertilizer machine control system.
Fig. 6 is a flow chart of the work of the water fertilizer machine control system of the invention.
Fig. 7 is a flow chart of the remote communication of the water fertilizer machine control system of the invention.
In the figure: 1. a stirring operation module; 2. a pH value and EC value setting module; 3. an irrigation/fertilization mode switching module; 4. a manual/automatic mode switching module; 5. a manual start button; 6. a data acquisition display module; 7. a source water pump status module; 8. a booster pump status module; 9. a fertilization channel module; 10. and an irrigation planning module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a liquid manure control system based on 485 bus forms which characterized in that: the device comprises a stirring operation module 1, a pH value and EC value setting module 2, an irrigation/fertilization mode switching module 3, a manual/automatic mode switching module 4, a manual starting button 5, a data acquisition display module 6, a source water pump state module 7, a booster pump state module 8, a fertilization channel module 9 and an irrigation planning module 10;
the liquid manure machine and each module serial port controller adopt an RS-485 transmission mode through a separate installation mode, a liquid manure machine control system is provided with a communication interface using a Modbus communication protocol and is used for carrying out remote communication with a big data platform, a platform touch screen is used as a core, a 485 bus form is adopted, a control instruction is sent to the controller through a serial port of the touch screen, a relay on the controller acts, each module control function is realized, the touch screen and a 16-channel serial port controller realize the control of the liquid manure machine, each serial port controller is provided with 16 valve channels, the protocol agreement based on the Modbus is realized, and 1-254 serial port controllers are connected to a serial port under one touch screen.
The working flow of the stirring operation module 1 is that the stirring time length is set firstly, the stirring operation is started by pressing after the setting is finished, the stirring is started, the stirring countdown is synchronously counted, the stirring operation is automatically stopped when the countdown time returns to zero, when the stirring operation is started by pressing or the countdown time returns to zero, the touch screen sends a control instruction to the controller, the controller firstly verifies the validity of the control instruction, if the control instruction is invalid, the control instruction is not executed, if the control instruction is invalid, the controller starts or closes the power supply of the stirring motor, so that the stirring motor operates or stops, the impeller in the fertilizer mixing barrel is driven to rotate or stop, so that the water and fertilizer mixed liquid in the fertilizer mixing barrel rotates or stops, the stirring function is finished, and the stirring operation of the stirring operation module 1 is remotely controlled in a mode of matching with a 485 bus through the touch screen.
The pH value and EC value setting module 2 collects the pH value and EC value in real time and displays the pH value and EC value in the collected data display module 6 through a sensor arranged on the pipeline under the fertilizing state, the water fertilizer can automatically open and close the electromagnetic valve and the booster pump of the fertilizing barrel according to the set value and the current value, so that the pH value and EC value of the fertilizer liquid in the pipeline are stably in the set area range, and the pH value and EC value setting module 2 is matched with the collected data display module 6 to remotely monitor the pH value and EC value.
Irrigation/fertilization mode switch module 3 is under the irrigation state, no matter choose for use fertilization channel module 9 control fertilization channel solenoid valve, can not open channel solenoid valve and booster pump, only can open the source water pump of source water pump state module 7, only provide water for the crop and irrigate the operation, under the fertilization mode, fertilize the channel solenoid valve and open the booster pump that inhales fertile passageway and booster pump state module 8 through choosing for use fertilization channel module 9 and realize mixing fertile, and carry out the fertilization operation, adjust the operation demand of irrigating and fertilizeing in a flexible way at the control end.
The manual/automatic mode switching module 4 is in a manual mode, the time setting of the irrigation planning module 10 is invalid, and the equipment can only be turned on and off through the manual starting button 5, in an automatic mode, the time of the irrigation planning module 10 can be set by itself, the time is the equipment turning-on time, 8 groups in total can be set, after each time is set, the 'off' behind the time is clicked to enable the equipment to be in the 'on' state, the set irrigation plan is automatically started at the time, after the automatic execution of the irrigation plan is finished, the system can automatically stop and wait for the next time point to be started, if the button behind the time is in the 'off' state, even if the time is set, the system cannot be started when the time is reached, and the automatic irrigation plan operation presetting adjustment is provided.
After the irrigation plan of the irrigation planning module 10 is set in the manual mode, the manual start button 5 starts the equipment according to the irrigation plan by pressing the button, and after the set irrigation plan is finished, the button is recovered, meanwhile, the equipment stops working, the system is in a standby state, waits for next start, and further controls the irrigation planning adjustment if necessary through the manual start button 5.
The collected data display module 6 is a collected data display area of the touch screen and is used for displaying the pH value and the EC value of the current fertilizer water collected by the pH sensor and the EC sensor which are arranged in the main pipe, so that remote monitoring can be conveniently carried out between the collected data display modules 6 of the touch screen.
Source water pump state module 7 shows the state of source water pump, and when general equipment ran, source water pump all was in the open mode, and booster pump state module 8 shows the state of booster pump, only in normal fertilization state and have at least one inhale fertile passageway solenoid valve and open, the booster pump could be in the open mode, control adjustment work when irrigating or fertilizeing through source water pump state module 7 and the control of booster pump state module 8 corresponding water pump.
Fertilization channel module 9 is used for setting up the fertilization passageway, under the fertilization mode, can set up and specifically use the liquid fertilizer in which mixes fertile bucket to fertilize, cooperates the 6EC value of data display module of gathering to detect simultaneously and guarantees that the concentration of the liquid fertilizer of trunk line is stable at the interval within range of setting for, and the different liquid manure of being convenient for carries out nimble ratio adjustment through different fertilization passageways and applys, makes things convenient for the continuous fertilization operation between the different fertile buckets of mixing.
The irrigation planning module 10 is used for irrigation plan setting, numbers 1-10 are set as irrigation areas, clicking buttons are displayed to be green to indicate that the irrigation areas are selected, otherwise, the numbers are not selected, a prompting lamp is arranged on the left side of the selection button, the irrigation duration of the irrigation areas can be set on the right side, after all the irrigation areas are set, the system is started, rotation irrigation is carried out according to the selected irrigation areas, namely irrigation of the irrigation areas is carried out in sequence, in cooperation with the expansion capability of a 485 bus mode, the large-area areas are conveniently and respectively controlled to be adjusted in a segmented mode, if 1 irrigation area and 2 irrigation areas are selected, the irrigation areas work for 500s and 2 irrigation areas work for 300s, after a program is started, a solenoid valve of the irrigation area 1 is opened, irrigation is started, after 500s, the irrigation area 1 is closed, the irrigation area 2 is opened, after 300s, the irrigation areas are closed, and the system can also automatically stop because no subsequent irrigation areas need to work.
In this system, be used for carrying out remote communication with big data platform through the communication interface that is furnished with Modbus communication protocol, give the liquid manure machine through the platform and send control command and control, send data reading instruction and acquire current collector data and current operating condition, can also realize utilizing sensors such as soil humiture, soil pH value, soil conductivity, soil nitrogen phosphorus potassium ion installed around the crop to judge whether need irrigate or fertilize this moment simultaneously through the parameter setting at the platform to realize full automatic control.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a liquid manure control system based on 485 bus forms which characterized in that: the device comprises a stirring operation module (1), a pH value and EC value setting module (2), an irrigation/fertilization mode switching module (3), a manual/automatic mode switching module (4), a manual starting button (5), a data acquisition display module (6), a source water pump state module (7), a booster pump state module (8), a fertilization channel module (9) and an irrigation planning module (10);
the water and fertilizer machine control system and each module serial port controller are separately installed in an RS-485 transmission mode;
the liquid manure control system is provided with a communication interface using a Modbus communication protocol for carrying out remote communication with a big data platform, a platform touch screen is taken as a core, a 485 bus form is adopted, and a control instruction is sent to a controller through a serial port of the touch screen, so that a relay on the controller acts, and the control function of each module is realized;
the control of touch-sensitive screen and 16 serial port controllers realization to liquid manure machine, each serial port controller has 16 valve passageways, and based on Modbus's agreement, 1~254 serial port controllers under a touch-sensitive screen serial ports.
2. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the working process of the stirring operation module (1) comprises the steps of firstly setting stirring time, pressing down to start stirring after the setting is finished, starting stirring, synchronously counting stirring countdown, and automatically stopping stirring operation when the countdown returns to zero;
when the stirring is started by pressing or the countdown is zero, the touch screen sends a control instruction to the controller, the controller firstly checks the validity of the control instruction, if the control instruction is invalid, the control instruction is not executed, if the control instruction is valid, the controller starts or stops the power supply of the stirring motor, so that the stirring motor is operated or stopped, the impeller in the fertilizer mixing barrel is driven to rotate or stop, the water and fertilizer mixed liquid in the fertilizer mixing barrel is stirred to rotate or stop, and the stirring function is finished.
3. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the pH value and EC value setting module (2) collects the pH value and EC value in real time and displays the pH value and EC value in the collected data display module (6) through a sensor arranged on the pipeline in a fertilizing state, and the water fertilizer can automatically open and close the electromagnetic valve of the fertilizing barrel and the booster pump according to a set value and a current value, so that the pH value and EC value of the fertilizer liquid in the pipeline are stably in a set area range.
4. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: irrigation/fertilization mode switch module (3) is under the irrigation state, no matter whether choose for use fertilization passageway module (9) control fertilization passageway solenoid valve, can not open passageway solenoid valve and booster pump, only can open the source water pump of source water pump state module (7), only provide water for the crop and irrigate the operation, under the fertilization mode, open the booster pump that inhales fertile passageway and booster pump state module (8) through choosing for use fertilization passageway module (9) fertilization passageway solenoid valve and realize thoughtlessly fertile, and carry out the fertilization operation.
5. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the manual/automatic mode switching module (4) is in a manual mode, the time setting of the irrigation planning module (10) is invalid, and the equipment can be turned on and off only through the manual starting button (5);
in the automatic mode, the time of the irrigation planning module (10) can be set by itself, the time is the starting time of the equipment, 8 groups of the time can be set, after each time is set, the 'off' behind the time is clicked to enable the time to be in the 'on' state, the set irrigation plan is automatically started at the time, after the automatic execution of the irrigation plan is finished, the system can automatically stop and wait for the starting of the next time point, and if the button behind the time is in the 'off' state, even if the time is set, the system can not be started when the time is reached.
6. The 485 bus-based water and fertilizer machine control system according to claim 6, wherein: after the irrigation plan of the irrigation planning module (10) is set in a manual mode, the manual starting button (5) is pressed to start the equipment according to the irrigation plan, and after the set irrigation plan is finished, the button can be recovered, meanwhile, the equipment stops working, the system is in a standby state, and the next starting is waited.
7. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the acquired data display module (6) is an acquired data display area of the touch screen and is used for displaying the pH value and EC value of the current fertilizer water acquired by the pH sensor and EC sensor which are arranged in the main pipe.
8. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the source water pump state module (7) displays the state of a source water pump, and the source water pump is in an open state when general equipment runs;
the booster pump state module (8) shows the state of the booster pump, and the booster pump can be in an opening state only when at least one fertilizer sucking channel electromagnetic valve is opened in a normal fertilizing state.
9. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: fertilization passageway module (9) are used for setting up the fertilization passageway, under the fertilization mode, can set up and specifically use which fertilizer liquid in the mixed fertilizer bucket fertilize, and the cooperation is gathered data display module (6) EC value simultaneously and is detected the concentration of guaranteeing the fertilizer liquid of trunk line and stablize in the interval within range of setting for.
10. The 485 bus form-based liquid manure control system as claimed in claim 1, wherein: the irrigation planning module (10) is used for irrigation plan setting, numbers 1-10 are set as irrigation area numbers, a click button displays green to indicate that the irrigation area is selected, otherwise, the selection button does not select the irrigation area, a prompt lamp is arranged on the left side of the selection button, and irrigation duration of the irrigation area can be set on the right side of the selection button;
and after the setting of all the irrigation areas is finished, starting the system, and performing rotation irrigation according to the selected irrigation areas, namely sequentially performing irrigation of the irrigation areas.
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| CN114303562B (en) | 2023-05-26 |
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