CN205794358U

CN205794358U - A kind of field Precision Irrigation wireless supervisory control system controlled based on PLC

Info

Publication number: CN205794358U
Application number: CN201620526141.1U
Authority: CN
Inventors: 龙燕; 焦朝勇; 吴凤娇; 王斌
Original assignee: Northwest A&F University
Current assignee: Northwest A&F University
Priority date: 2016-05-23
Filing date: 2016-05-23
Publication date: 2016-12-14
Anticipated expiration: 2026-05-23

Abstract

The utility model discloses a kind of field Precision Irrigation wireless supervisory control system controlled based on PLC, including PLC module, described PLC module is electrically connected touch screen, the first wireless module, the 4th wireless module, described first wireless module electrically connects the second wireless module, described second wireless module electrical connection one-chip computer module, the input electrical connection A/D modular converter of described one-chip computer module.The field Precision Irrigation wireless supervisory control system that should control based on PLC, utilize PLC center module first to record atmospheric temperature value and be supplied to user, using as the reference information setting soil moisture content value range of operation, after user sets soil range of operation, soil moisture content value can be monitored in real time to control the open and close of water pump by PLC module, system uses PLC module to make control core, reliability is high, capacity of resisting disturbance is strong, maintenance workload is little, easy to maintenance, it is simple to extension, can control multiple pump working, the suitability is strong simultaneously.

Description

A kind of field Precision Irrigation wireless supervisory control system controlled based on PLC

Technical field

This utility model relates to field irrigation technical field, a kind of field Precision Irrigation controlled based on PLC without Line monitoring system.

Background technology

From ancient times to the present, the agricultural foundation that always China depends on for existence, agricultural development be unable to do without the use of water, as long as water is not Abundance, and to be used reasonable, so could carry out Rational Irrigation for different time Different Crop, improve crop yield with Quality, but be intended to meet the two and require that also there is a big difference.

Nowadays shortage of water resources, China's agricultural irrigation is faced with stern challenge.Data show, agricultural water accounts for China The 70% of total water consumption, wherein the overwhelming majority is again for field irrigation use, the most how to efficiently control farmland irrigation water Become the most agriculture very important problem of China.

For problem above, current agricultural aspect occurs in that many water saving measures, the such as anti-seepage of channels, pipe filling, slight irrigation, The measures such as sprinkling irrigation, drip irrigation, but these water saving measures simply reduce the unnecessary loss of moisture, in different time difference farmings The different water requirements of thing there is no improvement；Also having a kind of irrigation method is to pour water the critical period, but this mode is a kind of rough Experience controls, and does not feed back controlling result, can not meet requirement.

Based on above-mentioned analysis, the data being gathered soil moisture content sensor by slave computer are fed back as result, and and user The parameter set by host computer is compared, it is achieved field Precision Irrigation closed-loop automatic control is significant.

Utility model content

The purpose of this utility model is to provide a kind of field Precision Irrigation wireless supervisory control system controlled based on PLC, with The problem solving to propose in above-mentioned background technology.

For achieving the above object, this utility model provides following technical scheme: a kind of field controlled based on PLC precisely fills Irrigating wireless supervisory control system, including PLC module, described PLC module is electrically connected touch screen, the first wireless module, the 4th wireless Module, described first wireless module electrically connects the second wireless module, and described second wireless module electrically connects one-chip computer module, described The input electrical connection A/D modular converter of one-chip computer module, the input electrical connection soil moisture content sensing of described A/D modular converter Device, described one-chip computer module, the input of soil moisture content sensor are electrically connected power module, the electrical connection of described PLC module 4th wireless module, described 4th wireless module electrical connection the 3rd wireless module, described 3rd wireless module electrical connection host computer, The outfan of described PLC module be electrically connected alarm module, control drive circuit, input be electrically connected power module, Temperature sensor, the outfan electrical connection water pump of described control drive circuit, the input electric connection of power supply module of described water pump.

Preferably, the outfan of described power module is electrically connected PLC module, one-chip computer module, soil moisture content sensing Device, water pump.

Preferably, respectively by wireless between described one-chip computer module and PLC module and between PLC module and host computer 485 modules, wireless 232 module communications.

Compared with prior art, the beneficial effects of the utility model are: the field Precision Irrigation being somebody's turn to do control based on PLC is wireless Monitoring system, utilizes PLC center module first to record atmospheric temperature value and is supplied to user, using as setting the operation of soil moisture content value The reference information of scope, after user sets soil range of operation, can monitor soil moisture content value to control by PLC module in real time The open and close of water pump, system uses PLC module to make control core, and reliability is high, and capacity of resisting disturbance is strong, maintenance workload Little, easy to maintenance, it is simple to extension, multiple pump working can be controlled simultaneously, the suitability is strong, using real-time soil moisture content as feedback letter Breath, carries out closed loop control, and precision is high, real-time, and user can also directly control water pump by host computer or touch screen and open With closedown, controllability is strong, respectively by wireless between one-chip computer module and PLC module and between PLC module and host computer 485 modules, wireless 232 modules realize wireless serial communication, eliminate the wiring process between communication, have saved wiring cost, Reduce the difficulty of wiring.

Accompanying drawing explanation

Fig. 1 is this utility model module diagram.

In figure: 1 touch screen, 2 alarm modules, 3PLC module, 4 first wireless modules, 5 second wireless modules, 6 single-chip microcomputer moulds Block, 7A/D modular converter, 8 soil moisture content sensors, 9 control drive circuits, 10 water pumps, 11 power modules, 12 temperature sensors, 13 the 4th wireless modules, 14 the 3rd wireless modules, 15 host computers.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

Referring to Fig. 1, this utility model provides a kind of technical scheme: a kind of field Precision Irrigation controlled based on PLC without Line monitoring system, including PLC module 3, PLC module 3 is electrically connected touch screen the 1, first wireless module the 4, the 4th wireless module 13, the first wireless module 4 electrically connects the second wireless module 5, and the second wireless module 5 electrically connects one-chip computer module 6, one-chip computer module The input electrical connection A/D modular converter 7 of 6, the input electrical connection soil moisture content sensor 8 of A/D modular converter 7, single-chip microcomputer Module 6, the input of soil moisture content sensor 8 are electrically connected power module 11, and PLC module 3 electrically connects the 4th wireless module 13, the 4th wireless module 13 electrically connects the 3rd wireless module 14, and the 3rd wireless module 14 electrically connects host computer 15, PLC module 3 Outfan is electrically connected alarm module 2, controls drive circuit 9, and input is electrically connected power module 11, temperature sensor 12, control the outfan electrical connection water pump 10 of drive circuit 9, the input electric connection of power supply module 11 of water pump 10, power module The outfan of 11 is electrically connected PLC module 3, one-chip computer module 6, soil moisture content sensor 8, water pump 10, one-chip computer module 6 He Respectively by wireless 485 modules, wireless 232 module communications between PLC module 3 and between PLC module 3 and host computer 15, save Omit the wiring process between communication, saved wiring cost, reduced the difficulty of wiring.

Operation principle: by the field Precision Irrigation wireless supervisory control system of PLC module 3 by soil moisture content sensor 8 and temperature Degree sensor 12 measures soil moisture content and atmospheric temperature information in real time, uses the soil moisture content sensor being output as information of voltage Data are delivered to one-chip computer module 6 via A/D modular converter 7 by 8, then are delivered to PLC module 3 by one-chip computer module 6, then by PLC Module 3 carries out the conversion of data, and temperature is then acquired and is directly transmitted to PLC module 3 by DS18820 temperature sensor 12 and enters Row data convert, and PLC module 3 sends the two groups of data converted to touch screen 1 again, and user can complete phase on touch screen 1 The operation answered, whether native system is to carry out comprehensive descision by soil moisture content value, atmospheric temperature value, seasonal climate and user self should This is irrigated, and PLC module 3 records atmospheric temperature value, and the scope setting soil moisture content value for user provides a foundation, user After setting soil moisture content value range of operation, PLC module 3 just will monitoring real-time to soil moisture content judge that it is whether beyond model Enclosing, if beyond set point, alarm module 2 circuit will work, and PLC module 3 drives water pump 10 start or close, directly simultaneously To returning to normal range, user can also directly control unlatching and stopping, the monolithic of water pump 10 by touch screen 1 or host computer 15 Carry out wireless serial communication between machine module 6 and PLC module 3 and between PLC module 3 and host computer 15, be all made by wireless Module realizes.

Embodiment the most of the present utility model, for the ordinary skill in the art, It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. the field Precision Irrigation wireless supervisory control system controlled based on PLC, including PLC module (3), it is characterised in that: institute State PLC module (3) and be electrically connected touch screen (1), the first wireless module (4), the 4th wireless module (13), described first wireless Module (4) electrically connects the second wireless module (5), described second wireless module (5) electrical connection one-chip computer module (6), described monolithic Input electrical connection A/D modular converter (7) of machine module (6), the input electrical connection soil moisture in the soil of described A/D modular converter (7) Feelings sensor (8), described one-chip computer module (6), the input of soil moisture content sensor (8) are electrically connected power module (11), described PLC module (3) electrical connection the 4th wireless module (13), described 4th wireless module (13) electrical connection the 3rd is wireless Module (14), described 3rd wireless module (14) electrical connection host computer (15), the outfan of described PLC module (3) is electrically connected respectively Module taking alarm (2), control drive circuit (9), input is electrically connected power module (11), temperature sensor (12), institute State outfan electrical connection water pump (10) controlling drive circuit (9), the input electric connection of power supply module of described water pump (10) (11)。

A kind of field Precision Irrigation wireless supervisory control system controlled based on PLC the most according to claim 1, its feature exists In: the outfan of described power module (11) is electrically connected PLC module (3), one-chip computer module (6), soil moisture content sensor (8), water pump (10).

A kind of field Precision Irrigation wireless supervisory control system controlled based on PLC the most according to claim 1, its feature exists In: pass through nothing respectively between described one-chip computer module (6) and PLC module (3) and between PLC module (3) and host computer (15) Line 485 module, wireless 232 module communications.