CN106718690A

CN106718690A - A kind of intelligent farmland irrigation system

Info

Publication number: CN106718690A
Application number: CN201611048608.7A
Authority: CN
Inventors: 曾翎轩
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2016-11-25
Filing date: 2016-11-25
Publication date: 2017-05-31

Abstract

The present invention relates to farmland irrigation system technical field, a kind of intelligent farmland irrigation system is disclosed.The invention includes management of the use of water software, main control module, radio-frequency communication module, module for metering electric quantity, GPRS modules and peripheral circuit；The Software for Design of intelligent irrigation system includes the initialization of system modules, signal procedure, the read-write of radio-frequency card；The main control chip of the main control module is PIC18F14K50, and main control module is connected with pump switch, and controls the switch of water pump；The radio frequency chip of the radio-frequency module is FM1702SL radio frequency chips, realizes the radio communication of reading and writing IC card；The electricity chip of module for metering electric quantity is ADE7758, and the power consumption of measurable water pump realizes deducting fees for water consumption；Main control module realizes the communication with data center by the Read-write Catrol GPRS module to register.System is easy to use, working stability, reliability are high, there is good practical value.

Description

A kind of intelligent farmland irrigation system

Technical field

The present invention relates to farmland irrigation system technical field, more specifically, system is poured in more particularly to a kind of intelligent farmland System.

Background technology

RFID (radio frequency identification, Radio FrequencyIdentification) is a kind of contactless automatic Identification technology, by years development, RFID systematic differences field is more and more extensive, has obtained extensive in daily life Using, such as No.2 residence card, mass transit card, all-in-one campus card etc..

Mode is poured in traditional farmland needs special messenger to keep an eye on motor-pumped well waste of manpower, frequently encounters difficulty during charge again.Therefore, A set of conveniently intelligent irrigation system is needed to solve these problems.

The content of the invention

It is an object of the invention to provide a kind of intelligent farmland irrigation system, realize reading using FM1702SL radio frequency chips The radio communication of IC cards is write, water consumption is converted to electricity by electricity chip ADE7758 easily realizes water consumption Deduct fees.Realize the mesh of intelligent irrigation by the Read-write Catrol to register as core with microprocessor PIC24FJ64GA006 , and the communication with data center is realized by GPRS modules, it is ensured that the security of the system.

Intelligent irrigation system includes management of the use of water software, main control module, radio-frequency communication module, module for metering electric quantity, GPRS Module and peripheral circuit.The Software for Design of intelligent irrigation system includes the initialization of system modules, signal procedure, radio frequency The read-write of card.The main control chip of the main control module is PIC18F14K50, and main control module is connected with pump switch, and controls water The switch of pump；The radio frequency chip of the radio-frequency module is FM1702SL radio frequency chips, realizes the radio communication of reading and writing IC card；Electricity The electricity chip of metering module is ADE7758, and the power consumption of measurable water pump realizes deducting fees for water consumption.Main control module is by right The Read-write Catrol GPRS module of register realizes the communication with data center.

Administrative staff by management of the use of water software and rf read-write device carry out out card, supplement with money wait operate.Successful recharging Afterwards, user is stuck in Card Reader region and swipes the card using IC, and system reads IC card informations and passes through GPRS modules and data center Communication, verifies whether the card image of current IC cards is consistent with data central store, and system receives what data center returned Information is simultaneously judged.When card image is inconsistent, system carries out stopping card operation to card, and user needs administrative center's weight New activation card could be used.When card image is unanimously and in the case of surplus, main control module opens pump switch, water pump Start to draw water.Module for metering electric quantity starts to measure the power consumption of water pump simultaneously, and is shown on charactron.Poured in active user During, there are other users come water intaking of swiping the card, irrigation system does not do any water intaking operation reacted and continue executing with active user.When Preceding user poured after the secondary card of brush one again, main control module judges the user currently to open by reading the sector auxiliary information of IC cards Pumping water user, then performs the operation that cuts out the pump and draws water stoppings, and electric quantity metering terminates stopping IC buckle expenses simultaneously.And lead to Cross the card image that GPRS module uploads the user.

Compared with prior art, by the present invention in that the radio frequency for realizing read-write IC-card with FM1702SL radio frequency chips leads to Water consumption, is converted to electricity and easily realizes deducting fees for water consumption by letter by electricity chip ADE7758.With microprocessor PIC24FJ64GA006 is the purpose that core realizes intelligent irrigation by the Read-write Catrol to register, and by GPRS Module realize with the communication of data center, system is easy to use, working stability, reliability are high, there is good practical value.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is system the general frame of the present invention.

Fig. 2 is main system control module circuit of the present invention.

Fig. 3 is system radio frequency modular circuit of the present invention.

Fig. 4 is system transceiver circuit of the present invention.

Fig. 5 is system charge metering module circuit of the present invention.

Fig. 6 is system GPRS modular circuits of the present invention.

Fig. 7 is software flow figure of the present invention.

Specific embodiment

The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.

Refering to shown in Fig. 1, the present invention provides a kind of intelligent irrigation system, and intelligent irrigation system is by management of the use of water software, master Control module, radio-frequency communication module, module for metering electric quantity, GPRS modules and peripheral circuit composition.Administrative staff are by using water pipe Reason software and rf read-write device carry out out card, supplement with money wait operate.After successful recharging, user is stuck in Card Reader region using IC Swipe the card, system reads IC card informations and by GPRS modules and data center to center communications, verifies the card letter of current IC cards Whether breath is consistent with data central store, and system receives the information of data center's return and judges.When card image not When consistent, system is carried out stopping card operation to card, and user needs administrative center to reactivate card could be used.When card letter Unanimously and in the case of surplus, main control module opens pump switch to breath, and water pump starts to draw water.Module for metering electric quantity is opened simultaneously The power consumption of beginning metering water pump, and shown on charactron.In active user's irrigation process, there are other users and taken to swipe the card Water, irrigation system does not do any water intaking operation reacted and continue executing with active user.Active user poured after the secondary card of brush one again, Main control module judges that the user is current turn on pump water intaking user by reading the sector auxiliary information of IC cards, then performs and cuts out the pump Stopping of drawing water is operated, electric quantity metering terminates to stop IC buckle expenses simultaneously.And the card of the user is uploaded by GPRS module Information.

Main control module is made up of single-chip microcomputer PIC24FJ64GA006 and some peripheral circuits.Main control chip is used PIC18F14K50, by its abundant interface, in that context it may be convenient to communicated with modules.High performance RISC CPU, spirit Oscillator structure living, and low-power consumption management, these characteristics can be very good to complete irrigation system work.Single-chip microcomputer The Serial Peripheral Interface (SPI) of PIC24FJ64GA006（SPI）It is serial for what is communicated with other peripheral hardwares or single-chip microcomputer device Interface.These external devices can be serial EEPROM, shift register, display driver and A/D converters etc..This hair The SPI interface and radio frequency chip of bright use PIC18F14K50, electricity chip are communicated.SPI patterns allow simultaneously same Step sends and receives 8 data.Communication is realized using following 4 pins：Serial data is exported（SDO）, serial data is defeated Enter（SDI）, serial clock（SCK）, from selection（NSS）.Main control module interlock circuit is as shown in Fig. 2.

Radio-frequency communication module is mainly made up of FM1702SL chips and some peripheral circuits, the radio frequency of completion system Communication function.FM1702SL is the contactless reading based on ISO14443 standards of microelectronics limited company of Fudan University design Card machine chip, supports the TYPEA contactless communications protocols under 13.56MHz frequencies, supports multiple encryption algorithms.Support SPI Interface modes, in that context it may be convenient to communicated with main control chip.The SPI pins of FM1702SL chips and the SPI pins of main control chip It is connected, RSTPD is FM1702SL hardware reset pins, when there are abnormal conditions in system electrification or FM1702SL, Main control chip to the low levels more than 512 clock cycle are input on RSTPD pins can hardware reset FM1702SL. IRQ is that FM1702SL interrupts enable pin, and interrupt signal is provided to main control chip, and mark FM1702SL has performed one Individual complete order.Radio-frequency module interlock circuit is as shown in Fig. 3.

TX1 the and TX2 pins of FM1702SL chips be for launching modulated 13.56MHz carrier signals, it is auxiliary Several passive devices are helped match and filter just can be with direct driven antenna.RX pins are used for receiving the signal that card sends, FM1702SL employs orthogonal demodulation circuit to demodulate the subcarrier signal of the ISO14443 standards on RX pins.Transmitting connects Receive circuit as shown in Figure 4.

Electric quantity metering realizes a small-sized voltameter using ADE7758 chips.ADE7758 is U.S. ADI public Take charge of exploitation a kind of small volume, dynamic range up to 1000: 1 new electric energy measure integrated circuit, it have digital integration, The function such as digital filtering and practical energy monitor, metering.ADE7758 is communicated by SPI modes with main control chip, by meter Volume and electricity realizes the metering of water consumption.Module for metering electric quantity interlock circuit is as shown in Fig. 5.

GPRS modules are an integrated modules, by buying additional some peripheries of ready-made GPRS module SIM900 Circuit realizes radio communication.Before electricity in module, it is to be ensured that the connection of modular peripheral circuit interface is correct, abnormal without short circuit etc. Situation so as not to damage module.Started shooting to module by PWRKEY keys, then read module STATUS pin judge whether start.Pass through Serial ports send capitalization AT r desynchronize baud rate.SIM900 is communicated by its serial ports with main control chip, makes irrigation system It is connected to data center's communication, synchronous user's IC card information prevents from replicating card, the dangerous row such as malicious modification card image For.GPRS module interlock circuit is as shown in Fig. 6.

The Software for Design of intelligent irrigation system includes the initialization of system modules, signal procedure, the read-write of radio-frequency card. Intelligent irrigation system bottom software can show a C language under PIC developing instruments.Idiographic flow is first first to be carried out to each port Beginningization, then modules are initialized by main control chip transmission order.Main control chip receives the successful information of initialization Afterwards, the card operational order for waiting subscriber card piece to be received to send, after receiving operational order, main control chip is sent at radio-frequency card Reason order to FM1702SL, while GPRS module carried out also according to the order that main control chip sends to module for metering electric quantity it is related Operation.Software flow is as shown in Fig. 7.

Although being described in conjunction with the accompanying embodiments of the present invention, patent owner can be in appended claims Within the scope of make various deformations or amendments, as long as no more than the protection domain described by claim of the invention, all should Within protection scope of the present invention.

Claims

1. a kind of intelligent irrigation system, it is characterised in that：Including management of the use of water software, main control module, radio-frequency communication module, electricity Metering module, GPRS modules and peripheral circuit；The Software for Design of intelligent irrigation system includes the initial of system modules Change, signal procedure, the read-write of radio-frequency card；The main control chip of the main control module is PIC18F14K50, and main control module is opened with water pump Close and be connected, and control the switch of water pump；The radio frequency chip of the radio-frequency module is FM1702SL radio frequency chips, realizes reading and writing IC card Radio communication；The electricity chip of module for metering electric quantity is ADE7758, and the power consumption of measurable water pump realizes the button of water consumption Take；Main control module realizes the communication with data center by the Read-write Catrol GPRS module to register.