CN211293727U

CN211293727U - PLC controller for aeroponic cultivation of potato original seeds

Info

Publication number: CN211293727U
Application number: CN201921966731.6U
Authority: CN
Inventors: 何建栋; 张升; 张涛; 何鑫; 何隆
Original assignee: Ningxia Xiji Hengfeng Agricultural Comprehensive Development Co ltd
Current assignee: Ningxia Xiji Hengfeng Agricultural Comprehensive Development Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-08-18
Anticipated expiration: 2029-11-14

Abstract

The PLC controller for aeroponics cultivation of the potato stock seeds comprises a controller PLC, a touch screen EA, an intermediate relay KA, a contactor KMI, a 24V switch power supply, a 12V switch power supply, a power switch QS and a single-stage short-circuit device QF; the protection circuit is provided with power supply short-circuit protection switches QF1 and QF 2; the 24V switching power supply is electrically connected with the Programmable Logic Controller (PLC) and the touch screen EA; the 12V switching power supply is electrically connected with the intermediate relay KA; the controller PLC is electrically connected with the touch screen EA and the intermediate relay KA; the intermediate relay KA is respectively connected with a contactor KMI for controlling the water pump to work and 8 groups of spraying electromagnetic valves; the device is arranged in an electric appliance control cabinet. The switch circuit of the contactor KMI is connected with the water pump motor M. The utility model discloses degree of automation is high, has reduced manufacturing cost, has effectively solved potato breeder's seed production cycle length, with seedling volume big, the inefficiency scheduling problem.

Description

PLC controller for aeroponic cultivation of potato original seeds

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a PLC controller is used in cultivation of farming of potato original seed aeroponics.

Background

The aeroponic culture technique is the best mode for solving the root system water vapor contradiction in all soilless culture techniques, and is easy to be automatically controlled, and does not use solid matrix, but directly sprays nutrient solution into the plant root system, thereby realizing three-dimensional culture and improving the utilization rate of greenhouse space. The original potato breeder seed controller is completed only by simple electrical elements such as a contactor, a time relay and the like, for example, the authorized publication No. CN201820098U of 'a aeroponic culture controller' in Chinese patent mainly depends on a microcomputer time controller and a time relay for control, the control time is easily influenced by power failure and the like, and the control time can not be changed and controlled in groups. So far, no good solution is available.

Disclosure of Invention

The utility model aims at providing a PLC controller is used in cultivation with aeroponics to the defect that current agricultural cultivation exists with aeroponics controller, provides the better potato breeder's seed aeroponics cultivation with automatic control.

The technical scheme of the utility model is that: the PLC controller is used for aeroponics cultivation of the potato stock seeds. The controller comprises a Programmable Logic Controller (PLC), a touch screen (EA), an intermediate relay (KA), a contactor KMI, a 24V switching power supply, a 12V switching power supply, a power switch (QS) and a single-stage short-circuit device (QF); the protection circuit is provided with power supply short-circuit protection switches QF1 and QF2 for control; the 24V switching power supply is electrically connected with the Programmable Logic Controller (PLC) and the touch screen EA; the 12V switching power supply is electrically connected with the intermediate relay KA. The controller PLC is electrically connected with the touch screen EA and the intermediate relay KA. The intermediate relay KA is respectively connected with a contactor KMI for controlling the water pump to work and 8 groups of spraying electromagnetic valves. The programmable controller PLC, the intermediate relay KA, the contactor KMI, the 24V switching power supply, the 12V switching power supply, the power switch QS and the single-stage short-circuit device QF are all installed in the electric appliance control cabinet. The switch circuit of the contactor KMI is connected with the water pump motor M. After a power switch QS is turned on, the whole machine system is electrified, then switches QF1 and QF2 are turned on to respectively supply power to a 24V switch power supply and a 12V switch power supply, the 24V power supply supplies power to the PLC and the touch screen, and the 12V power supply supplies power to the intermediate relay and the spraying electromagnetic valve. After the start-up is normal, each indicator lamp is normally lighted, the PLC is controlled by operating the touch screen, so that the electromagnetic valve is controlled to be opened and closed to meet various control requirements.

Has the advantages that:

1. the utility model automatically controls the prepared nutrient solution to be sprayed on the root system of the potato plant in a timing and quantitative manner, so that the potato plant can obtain sufficient moisture and nutrients, thereby promoting the growth of the potato and improving the production efficiency of the original stock, the average single plant bears 30-50 potatoes, the highest potato bearing capacity can reach more than 80-100, which is more than 20 times of that of the traditional substrate cultivation, the production efficiency and the automation degree are high, and the production cost is greatly reduced;

2. effectively solves the problems of long production period, large seedling using amount, low efficiency, soil-borne diseases and the like of the potato original seed;

3. the utility model discloses can carry out nimble modification to spray time in real time through the touch-sensitive screen, compensate the defect that can't modify again after the former controller time is fixed, through the nimble control to spray time, can expect under the unchangeable condition of environment output maximize, the power requirement of spraying to the water pump of grouping simultaneously descends, changes into the miniwatt pump by former high-power pump, has not only still reduced the loss to the circuit in the time of the power saving, the utility model discloses can improve the single trunk potato bearing rate and the holistic cultivation efficiency of potato breeder's seed greatly.

Drawings

Fig. 1 is a schematic diagram of the circuit connection relationship of the present invention.

Fig. 2 is the schematic view of the EA operation interface of the touch screen of the present invention.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following description is further made with reference to the accompanying drawings.

Referring to fig. 1, a PLC controller for aeroponics cultivation of potato stock seeds. The controller comprises a Programmable Logic Controller (PLC), a touch screen (EA), an intermediate relay (KA), a contactor KMI, a 24V switching power supply, a 12V switching power supply, a power switch (QS) and a single-stage short-circuit device (QF); the protection circuit is provided with power supply short-circuit protection switches QF1 and QF2 for control; the 24V switching power supply is electrically connected with the Programmable Logic Controller (PLC) and the touch screen EA; the 12V switching power supply is electrically connected with the intermediate relay KA. The controller PLC is electrically connected with the touch screen EA and the intermediate relay KA. The intermediate relay KA is respectively connected with a contactor KMI for controlling the water pump to work and 8 groups of spraying electromagnetic valves. The switch circuit of the contactor KMI is connected with the water pump motor M. And the water pump motor M is used for pumping nutrient solution. After a power switch QS is turned on, the whole machine system is electrified, then switches QF1 and QF2 are turned on to respectively supply power to a 24V switch power supply and a 12V switch power supply, the 24V power supply supplies power to the PLC and the touch screen, and the 12V power supply supplies power to the intermediate relay and the spraying electromagnetic valve. After the start-up is normal, each indicator lamp is normally lighted, the PLC is controlled by operating the touch screen, so that the electromagnetic valve is controlled to be opened and closed to meet various control requirements.

The PLC can complete equipment automation and process automation control, realize network functions, has the characteristics of stable performance, expandability, strong anti-interference and the like, and is the core and soul of the potato stock breed aeroponics production. The PLC control cabinet and the like can be designed according to user demands, user requirements are met, and the PLC control cabinet can be matched with a human-computer interface touch screen to achieve the purpose of easy operation. The specific control functions of the programmable logic controller PLC are as follows:

(1) logic control: the PLC control cabinet has a logic operation function and can realize the on-off control of various machines and production processes.

(2) Timing control: the PLC control cabinet has a timing function, can provide dozens or even thousands of timers for users, and the set value of the timing time can be set by a user program or can be set by an operator in real time through a man-machine conversation device on an industrial field to finish timing or delay control.

The touch screen is a programmable terminal integrating a display and a touch switch, and is a new generation of high-tech man-machine interface product. The touch screen specially designed for the PLC application integrates a host, input equipment and output equipment, and is suitable for being used in various environments. The method has the advantages of good interactivity, high reliability, simple programming, simple and convenient connection with the PLC and the like. The main functional characteristics are as follows:

(1) the connection is simple, and the connection with the PLC can be completed by using one communication cable;

(2) the picture is very convenient to make because the picture is provided with rich component libraries;

(3) the PLC input and output point can be saved by replacing external elements such as buttons, indicator lights and the like.

Fig. 2 is a diagram of an operation interface EA of the touch screen:

turning on a power supply and electrifying the whole system in the figure 1, lighting a touch screen, and setting spraying time by touching a white frame before, in minutes and seconds with hands. The touch with an OFF word can set the on and OFF of each electromagnetic valve, and the color of the status light changes. The following are the specific meanings of the touch screen text:

the touch screen picture has picture information such as day start, day end, opening and holding, closing and holding, total stop after day cycle, total stop after night cycle, OFF and the like.

The method comprises the following specific operations: the on and off of the spray solenoid valve was clicked by the relay KM 1.

And beginning in the daytime, which means that the nutrient solution is sprayed from several points in the daytime.

And (4) ending the day: indicating the time of day end.

Opening and keeping: the electromagnetic valve is opened for spraying the nutrient solution.

Closing and keeping: time of closing solenoid valve

The total stop after the daytime cycle: the total stop time after the daytime work is finished.

The total stop after the circulation at night: the total stop time after the work is finished at night.

1-8 routes: representing 1 to 8 corresponding sets of 1 to 8 solenoid valves.

OFF: and (4) switching on and off each electromagnetic valve.

Automatically switching to the night working hours mode after the day cycle is finished.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The PLC controller for aeroponics cultivation of the potato stock seeds comprises a PLC, and is characterized by further comprising a touch screen EA, an intermediate relay KA, a contactor KMI, a 24V switching power supply, a 12V switching power supply, a power switch QS and a single-stage short-circuit device QF; the protection circuit is provided with power supply short-circuit protection switches QF1 and QF2 for control; the 24V switching power supply is electrically connected with the Programmable Logic Controller (PLC) and the touch screen EA; the 12V switching power supply is electrically connected with the intermediate relay KA; the controller PLC is electrically connected with the touch screen EA and the intermediate relay KA; the intermediate relay KA is respectively connected with a contactor KMI for controlling the water pump to work and 8 groups of spraying electromagnetic valves; the programmable controller PLC, the intermediate relay KA, the contactor KMI, the 24V switching power supply, the 12V switching power supply, the power switch QS and the single-stage short-circuit device QF are all installed in the electric appliance control cabinet, and the switching circuit of the contactor KMI is connected with the water pump motor M.