CN105115567A - Real-time water level data monitor system for farmland - Google Patents
Real-time water level data monitor system for farmland Download PDFInfo
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- CN105115567A CN105115567A CN201510599192.7A CN201510599192A CN105115567A CN 105115567 A CN105115567 A CN 105115567A CN 201510599192 A CN201510599192 A CN 201510599192A CN 105115567 A CN105115567 A CN 105115567A
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- water level
- relay
- farmland
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- code translator
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Abstract
The invention discloses a real-time water level data monitor system for farmland. The real-time water level data monitor system for the farmland comprises 96 sets of water level detection sensors and relays; the water level detection sensors and the relays are arranged to be in the shape of a 6*16 matrix, and therefore the system can be applied to the large farmland; in addition, only a microprocessor is arranged in the system, and therefore the power consumption of the system can be effectively reduced. When the water level is a little high, the system can automatically send a message to a mobile phone of a manager to remind the manager to process the condition, and the manager also can accurately know the little high position of the water level in time through a display device of the system, so that residual water in the farmland can be accurately drained in time.
Description
Technical field
The present invention relates to agricultural environmental monitoring system, particularly a kind of farmland real time water level data monitoring system.
Background technology
In China, along with the continuous minimizing of the personnel of being engaged in agriculture, agricultural starts to change large regions mechanized cultivation into from traditional artificial little field plantation.In the growth course of crops, can suitably supply water of crucial importance to crop, directly have influence on crops and whether can grow up healthy and sound.In farmland, although use liquid level sensor effectively can monitor confluent, if but farmland entire area is large, then need multiple liquid level sensor to form detection arrays, can require that Operation system setting has multiple microcontroller like this, not only increase cost, also can because of more Single Chip Microcomputer (SCM) system wastes power resource.
Summary of the invention
The object of the present invention is to provide a kind of waterlevel data monitoring that can either meet large farmland, again can the farmland real time water level Data monitoring system of conservation of power resource.
For solving the problems of the technologies described above, the invention provides a kind of farmland real time water level data monitoring system, comprising: water level monitoring subsystem, control subsystem, display subsystem and alarm sub-system; Control subsystem is connected with display subsystem, alarm sub-system respectively;
Water level monitoring subsystem comprises water sensor circuit, code translator, analog to digital conversion circuit and relay;
Water sensor circuit is connected with the data signal input of relay, and water sensor circuit is for detecting farmland water level height; The output terminal of code translator is connected with the control signal input end of relay; The input end of code translator is connected with the control output end of control subsystem; The data signal output of relay is connected with the input end of analog to digital conversion circuit, and the output terminal of analog to digital conversion circuit is connected with the signal input part of control system;
Control subsystem is used for:
Export control signal to code translator according to the alarm water level height value preset, after code translator decoding, control signal is sent to relay;
Receive the water level signal through analog to digital conversion circuit conversion;
Water level situation is obtained according to water level signal analysis;
Control display subsystem display water level situation;
Water level gives the alarm higher than controlling alarm sub-system during setting value.
As preferably, water sensor circuit comprises capacitance level transducer, 7414 phase inverters and resistance;
The connection in parallel with a resistor of 7414 phase inverter, the output terminal of 7414 phase inverters is connected with relay, and input end is connected with one end of capacitance level transducer, the other end ground connection of capacitance level transducer.
As preferably, control subsystem comprises LPC1343 microcontroller.
As preferably, code translator is 4 × 16 code translators, and the quantity of code translator is 6.
As preferably, the quantity of relay is 96;
Relay is arranged in order into 6 × 16 matrixes;
The relay of each row is connected with a code translator respectively;
The output terminal of each row's relay is connected to analog to digital conversion circuit after short circuit;
The output terminal of analog to digital conversion circuit is connected with control subsystem.
As preferably, water sensor circuit is provided with 96 groups, and water sensor circuit is arranged in order into 6 × 16 matrixes;
Water sensor circuit connects one to one with relay respectively.
As preferably, alarm sub-system comprises wireless communication components;
When water level is higher than setting value, control subsystem controls wireless communication components and sends note to keeper's mobile phone terminal.
As preferably, wireless communication components adopts the wireless communication components of GSM and/or CDMA2000 standard.
As preferably, warning system is provided with at least 2 group wireless communication components.
The present invention compares existing farmland real time water level Data monitoring system, has the following advantages:
1, have employed with ARMCortex-M3 is the microcontroller LPC1343 of kernel, and this system can have 96 for the interface of sensor, uses 6 road output terminals to export all monitor values.
2, whole system only comprises a single-chip computer control system, low in energy consumption.
3, with the form layout relay of 6 × 16 matrixes and water sensor circuit, sensing range is expanded.
Accompanying drawing explanation
Fig. 1 is the one-piece construction block diagram of the embodiment of the present invention.
Fig. 2 is the circuit diagram of water sensor circuit in the present invention.
Fig. 3 is the one-piece construction schematic diagram of the embodiment of the present invention.
Fig. 4 is the connecting circuit figure of embodiment of the present invention repeat circuit.
Fig. 5 is working sensor process flow diagram in the embodiment of the present invention.
Fig. 6 is that in the present invention, first row relay is the schematic diagram of open-circuit condition.
Fig. 7 is that in the present invention, secondary series relay is the schematic diagram of open-circuit condition.
Fig. 8 is working-flow figure in the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.
The present invention relates to a kind of farmland real time water level Data monitoring system, comprise a kind of farmland real time water level data monitoring system, comprising: water level monitoring subsystem, control subsystem, display subsystem and alarm sub-system; Control subsystem is connected with display subsystem, alarm sub-system respectively;
Water level monitoring subsystem comprises water sensor circuit, code translator, analog to digital conversion circuit and relay;
Water sensor circuit is connected with the data signal input of relay, and water sensor circuit is for detecting farmland water level height; The output terminal of code translator is connected with the control signal input end of relay; The input end of code translator is connected with the control output end of control subsystem; The data signal output of relay is connected with the input end of analog to digital conversion circuit, and the output terminal of analog to digital conversion circuit is connected with the signal input part of control system;
Control subsystem is used for:
Export control signal to code translator according to the alarm water level height value preset, after code translator decoding, control signal is sent to relay;
Receive the water level signal through analog to digital conversion circuit conversion;
Water level situation is obtained according to water level signal analysis;
Control display subsystem display water level situation;
Water level gives the alarm higher than controlling alarm sub-system during setting value.
The control subsystem of native system selects ARMCortex-M3 to be that the LPC1343 microcontroller of kernel is as master control system, the signal detected by 96 sensors can be received, and use 6 road output terminals to export monitor value, and monitoring result is shown by display subsystem.When water level is higher, the wireless communication unit that control subsystem can also control warning system sends the mobile phone terminal of SMS Tip to keeper, reminds keeper to process in time.
The water sensor circuit of native system comprises capacitance level transducer, 7414 phase inverters and resistance, by capacitance level transducer is connected with 7414 phase inverters after parallel connection and resistant series, water sensor circuit is made to form a Schmidt trigger, as shown in Figure 2.This capacitance level transducer be according to " size of capacitance with between capacitor board by change about " principle design realize, the capacitance C=A/d of capacitor.Wherein ,=
r?
0, A is the capacitor board opposite area of capacitor, is the specific inductive capacity of medium,
rrelative dielectric constant,
0be permittivity of vacuum, d is the distance between pole plate.When not having ponding, air is dielectric, and when water level rises, when sensor is dipped in water, dielectric is air and water, and the effective capacitance of capacitor also can change thereupon.Along with the rising of water level, the effective capacitance of capacitor also can constantly change.Also one can change in the charging and discharging time of RC circuit thereupon, cause the side's of output wave frequency to change.The stool and urine of capacitance can the side's of utilization wave frequency calculate, and measuring process is controlled by single-chip microcomputer LPC1343.
In the present system, the control signal that microcontroller exports outputs to 96 relays respectively by six 4 × 16 code translators.Microcontroller, when controlling code translator, only has a code translator to be configured to high level, and then realizes controlling 96 relays.
In the present system, as shown in Figure 5, in sensor network, every a line relay output end is shorted together and is connected to ADC passage sensor network workflow.We will illustrate the course of work of sensor network for 6X2 matrix, as shown in Figure 6 and Figure 7.First, all relays of first row are all set to high level, and other are classified as low level.So ADC passage can receive the value of these 6 sensors corresponding to row relay.Next step, secondary series relay is set to high level, and other are classified as low level, the value of 6 sensors corresponding to ADC channel reception secondary series relay.This process repeats to the 16 row always.Whole process is cycled to repeat after this.The microcontroller clock frequency of system is 16MHz, and therefore each being cycled to repeat needs the time to be about a few microsecond.
In the present system, relay arranges with the matrix form of 6 × 16, and 16 relays of each row all can be connected on same code translator, and it is identical that the relay of each row and the pin on corresponding code translator connect order.96 sensors equally with 6 × 16 form layout, and each sensor is connected with the relay of correspondence position respectively, makes to get information about very much by display subsystem the ponding problem that certain position concrete exists, and realizes accurately monitoring.Sensor measurement to data be sent to relay, the output terminal of every a line relay, through short circuit process, is connected to the input end of analog to digital conversion circuit, final input control system.
Fig. 8 is the workflow of native system.Liquid level sensor sends the data to single-chip microcomputer by sensor network.If the water level in tested region is not higher than predefined numerical value, then system continues monitoring; If on-the-spot water level has exceeded setting value, can inform that keeper is to take necessary measure with instant short message mode.
Same principle, system also can be used for preventing Crops Drought.As needed a large amount of water in rice field.Water level is lower than required level, and system can send SMS notification to keeper equally.
Due to capacitance level transducer need the rugged surroundings mingled at water and air under work, compare miscellaneous part and easily the fault such as corrosion or short circuit occurs, therefore, this capacitance level transducer can be designed to detachably more to remodel, if sensor failure, then can direct more emat sensor, do not need to replace whole system, follow-up maintenance cost can be saved.
Include wireless communication system in the alarm sub-system of native system, when farmland water level is abnormal, the mobile phone of note to keeper can be sent, to realize prompting function.In the present system, the wireless network of preferred use GSM and/or CDMA2000 standard, reason is, compare TD-SCDMA, WCDMA, TDD-LTE network standard, the network frequency range of GSM and CDMA2000 network formats is lower, signal penetration capacity is stronger, and the network point distribution of GSM and CDMA2000 network formats is relatively many, the function that native system sends note can be met, and the covering site of TD-SCDMA, WCDMA, TDD-LTE is relatively few, and coverage is not as GSM and CDMA2000, can as network formats for subsequent use.
In addition, in the present system, the wireless communication system of at least 2 can be set, for settling the SIM card of two different operators, and major and minor card is set, under normal conditions, system sends SMS Tip by main card, and when the base station of main card arrearage or main card operator blocks (i.e. base station equipment fault cause no signal), use vice card transmission SMS Tip, can effectively avoid because arrearage or base station reason for impeding cause to receive note in time.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (9)
1. a farmland real time water level data monitoring system, is characterized in that, comprising: water level monitoring subsystem, control subsystem, display subsystem and alarm sub-system; Described control subsystem is connected with display subsystem, alarm sub-system respectively;
Described water level monitoring subsystem comprises water sensor circuit, code translator, analog to digital conversion circuit and relay;
Described water sensor circuit is connected with the data signal input of described relay, and described water sensor circuit is for detecting farmland water level height; The output terminal of described code translator is connected with the control signal input end of described relay; The input end of described code translator is connected with the control output end of described control subsystem; The data signal output of described relay is connected with the input end of analog-digital conversion circuit as described, and the output terminal of analog-digital conversion circuit as described is connected with the signal input part of described control system;
Described control subsystem is used for:
Export control signal to described code translator according to the alarm water level height value preset, after described code translator decoding, control signal is sent to described relay;
Receive the water level signal through analog to digital conversion circuit conversion;
Water level situation is obtained according to water level signal analysis;
Control described display subsystem and show described water level situation;
Water level gives the alarm higher than controlling described alarm sub-system during setting value.
2. farmland according to claim 1 real time water level data monitoring system, is characterized in that, described water sensor circuit comprises capacitance level transducer, 7414 phase inverters and resistance;
Described 7414 phase inverters are connected with described resistor coupled in parallel, and the output terminal of described 7414 phase inverters is connected with described relay, and input end is connected with one end of described capacitance level transducer, the other end ground connection of described capacitance level transducer.
3. farmland according to claim 1 real time water level data monitoring system, it is characterized in that, described control subsystem comprises LPC1343 microcontroller.
4. farmland according to claim 1 real time water level data monitoring system, is characterized in that, described code translator is 4 × 16 code translators, and the quantity of described code translator is 6.
5. farmland according to claim 4 real time water level data monitoring system, is characterized in that, the quantity of described relay is 96;
Described relay is arranged in order into 6 × 16 matrixes;
The described relay of each row is connected with a described code translator respectively;
Each output terminal arranging described relay is connected to analog-digital conversion circuit as described after short circuit;
The output terminal of analog-digital conversion circuit as described is connected with described control subsystem.
6. farmland according to claim 5 real time water level data monitoring system, is characterized in that, described water sensor circuit is provided with 96 groups, and described water sensor circuit is arranged in order into 6 × 16 matrixes;
Described water sensor circuit connects one to one with described relay respectively.
7. farmland according to claim 1 real time water level data monitoring system, it is characterized in that, described alarm sub-system comprises wireless communication components;
When water level is higher than setting value, described control subsystem controls described wireless communication components and sends note to keeper's mobile phone terminal.
8. farmland according to claim 7 real time water level data monitoring system, is characterized in that, described wireless communication components adopts the wireless communication components of GSM and/or CDMA2000 standard.
9. farmland according to claim 7 real time water level data monitoring system, it is characterized in that, described warning system is provided with wireless communication components described at least 2 groups.
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| CN201510599192.7A CN105115567B (en) | 2015-09-18 | 2015-09-18 | Farmland real time water level data monitoring system |
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| CN201510599192.7A CN105115567B (en) | 2015-09-18 | 2015-09-18 | Farmland real time water level data monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124854A (en) * | 2016-06-23 | 2016-11-16 | 国网天津市电力公司 | The multi-channel serial port that Itellectualized uptown power information gathers coordinates multiplexing method |
| CN111076790A (en) * | 2019-12-30 | 2020-04-28 | 上海科勒电子科技有限公司 | Liquid level monitoring method, storage medium and electronic equipment |
| CN114387769A (en) * | 2021-12-28 | 2022-04-22 | 中国电信股份有限公司 | Water immersion warning system and method |
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| US8565927B1 (en) * | 2009-02-03 | 2013-10-22 | Green Badge LLC | Irrigation interrupter |
| CN104848912A (en) * | 2015-04-27 | 2015-08-19 | 成都腾悦科技有限公司 | Water level monitoring system |
| CN204944614U (en) * | 2015-09-18 | 2016-01-06 | 苏州工业职业技术学院 | Farmland real time water level data monitoring system |
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| CN2307284Y (en) * | 1997-07-15 | 1999-02-10 | 中国水利水电科学研究院仪器研究所 | Far-end sensor channel selector suitable for hydroelectric engineering |
| US8565927B1 (en) * | 2009-02-03 | 2013-10-22 | Green Badge LLC | Irrigation interrupter |
| CN104848912A (en) * | 2015-04-27 | 2015-08-19 | 成都腾悦科技有限公司 | Water level monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106124854A (en) * | 2016-06-23 | 2016-11-16 | 国网天津市电力公司 | The multi-channel serial port that Itellectualized uptown power information gathers coordinates multiplexing method |
| CN111076790A (en) * | 2019-12-30 | 2020-04-28 | 上海科勒电子科技有限公司 | Liquid level monitoring method, storage medium and electronic equipment |
| CN114387769A (en) * | 2021-12-28 | 2022-04-22 | 中国电信股份有限公司 | Water immersion warning system and method |
| CN114387769B (en) * | 2021-12-28 | 2023-10-03 | 中国电信股份有限公司 | Water immersion alarm system and method |
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