scholarly journals Design of a Real Time Feedback Automation Irrigation System

2019 ◽  
Vol 4 (12) ◽  
pp. 117-120
Author(s):  
O'tega Ejofodomi ◽  
Godswill Ofualagba
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Real Time ◽  
Network Optimization ◽  
Soil Moisture Content ◽  
Irrigation System ◽  
Water Source ◽  
Irrigation Systems ◽  
Optimization Software ◽  
Control Units

This paper presents the design of a real time feedback control automated irrigation systems that consists of monitoring units, control units, irrigation pipeline valves, and a network of irrigation pipeline. The monitoring units continuously measure the soil moisture content in the irrigation blocks, and if the moisture content drops below a predetermined threshold for the particular crop under production, it sends a wireless message to the control units controlling the pipeline valves along the water flow channel, causing the control units to open the valves leading to the water source and commencing automatic irrigation. When the moisture content rises above a predetermined threshold for the crop, the monitoring units sends a wireless message to the control units, causing them to close the pipeline valves and cease automatic irrigation. An automatic irrigation system pipeline network optimization software has also been designed to plan, cost, and design the automatic irrigation system for a piece of land prior to installation.

scholarly journals Development and integration of soil moisture sensor with drip system for precise irrigation scheduling through mobile phone

2016 ◽  
Vol 8 (4) ◽  
pp. 1959-1965 ◽  
Author(s):  
Jitendra Kumar ◽  
Neelam Patel ◽  
T. B. S. Rajput
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Mobile Phone ◽  
Real Time ◽  
Soil Moisture Content ◽  
Irrigation System ◽  
Irrigation Scheduling ◽  
Moisture Sensor ◽  
Soil Moisture Sensor ◽  
Level Sensor

Soil moisture sensor is an instrument for quick measurements of soil moisture content in the crop root zone on real time basis. The main objective of this research was development and evaluation of an indigenous sensor for precise irrigation scheduling. The various parts of sensor developed were ceramic cup, acrylic pipe, level sensor, tee, reducer, gland, cork, and end cap. The designed system was successfully tested on okra crop and calibrated with frequency domain reflectometry (FDR) by three methods of irrigation, i.e. check basin, furrow and drip, respectively. The average depth of water depletion in modified tensiometer by these methods was 27 to 35 cm at 50% management allowable depletion (MAD) of field capacity. This depth was useful for the level sensor to be installed inside modified tensiometer for real time irrigation scheduling. The correlation coefficient (R2) between soil moisture content obtained from the developed sensor and FDR was 0.963. Sensor network was integrated with global system for mobile communication (GSM), short message service (SMS) and drip head work to develop an automated irrigation system. This would enable farmers to effectively monitor and control water application in the field by sending command through SMS and receiving pumping status through the mobile phone.

scholarly journals Conceptual Model of Drainage-Sub Irrigation System Functioning-First Results from a Case Study of a Lowland Valley Area in Central Poland

2020 ◽  
Vol 13 (1) ◽  
pp. 107
Author(s):  
Andrzej Brandyk ◽  
Edmund Kaca ◽  
Ryszard Oleszczuk ◽  
Janusz Urbański ◽  
Jan Jadczyszyn
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Conceptual Model ◽  
Soil Profile ◽  
Management Practices ◽  
Soil Moisture Content ◽  
Irrigation System ◽  
Irrigation Systems ◽  
Groundwater Dynamics ◽  
The Impact

The search for simple models of drainage–irrigation systems functioning and management has still been an important research objective. Therefore, we presented a conceptual model based on groundwater dynamics equation along with proper assumptions on water equivalent of transient porosity-i.e., storage in the soil profile based on the long-term experience of the research on drainage-sub-irrigation systems. Several parameters have been incorporated in the model to effectively and comprehensively describe drainage/irrigation time, leakage from the soil profile, the soil moisture content in the root zone, and the shape of the groundwater table on the drainage–sub-irrigation plot. The model was successfully validated on groundwater level data in ditch midspacing on an experimental site located within a valley sub-irrigation system with the advantage of a relatively simple representation of flows through the soil profile. The robust character of the conceptual equation of groundwater dynamics, as well as the approach to its’ parameters, were proved through a close match between the model and observations. This promotes the capacities of the proposed modeling procedure to conceptualize drainage-irrigation development with the impact of external and internal sources of water. The potential was offered for the evaluation of water management practices in a valley system influenced by horizontal inflows from surrounding areas as indicated by calibration results. Future challenges were revealed in terms of water exchange between the plots and validation of soil moisture content modeling.

scholarly journals Development and testing of a capacitive digital soil moisture sensor with printed circuit board as a probe

2020 ◽  
Vol 39 (3) ◽  
pp. 911-917
Author(s):  
V. Ogwo ◽  
K.N. Ogbu ◽  
C.C. Anyadike ◽  
O.A. Nwoke ◽  
C.C. Mbajiorgu
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Real Time ◽  
Printed Circuit Board ◽  
Soil Moisture Content ◽  
Gravimetric Method ◽  
Circuit Board ◽  
Moisture Sensor ◽  
Printed Circuit ◽  
Soil Moisture Sensor

The quantity and quality of water present in the soil determine to a greater extent the performance of agricultural crops. Real-time determination of moisture content has a greater advantage over the traditional gravimetric method of determining soil moisture content. Thus, this work was based on the design and construction of a cost effective digital capacitive soil moisture sensor for real-time measurement. The moisture sensors comprised four integrated units namely: power supply unit with a 9V DC battery as a power source, sensor unit with a locally sourced Printed Circuit Board (PCB) as the single sensing probe, control unit made up of PIC16f877 microcontroller programmed with a C language and the C source code compiled in Corporate Computer Services Compiler (CSS C) compiler development environment, and a 16x2 display unit which displays the readings in percentage moisture content (%MC) and capacitance (μF) of the soil obtained from the sensor on its screen. Standard gravimetric moisture content was carried out to get the calibration factor which was used to calibrate the sensor for reliability. The validation was done by taking the reprogrammed (calibrated) sensor to the field for further measurement, after which soil samples were collected for further gravimetric analysis. A regression equation was obtained by plotting the moisture content obtained from gravimetric method (%MCG) against that from sensor reading (%MCS) with a high degree correlation coefficient (R2) of 0.998. The developed capacitive soil moisture sensor is cheap, portable, reliable and easy to use even by local farmers. Keywords: Calibration, Capacitive sensor, Printed circuit board, Soil moisture content, Validation.

scholarly journals Automatic irrigation system on sensing soil moisture content

IJIREEICE ◽  
2015 ◽  
pp. 96-98
Author(s):  
NAGARAJAPANDIAN M ◽  
RAM PRASANTH U ◽  
SELVA KUMAR G ◽  
TAMIL SELVAN S
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Moisture Content ◽  
Irrigation System

scholarly journals Precision Agriculture using IOT

2021 ◽  
Vol 9 (VII) ◽  
pp. 122-127
Author(s):  
Mr. V. Seetha Rama
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Precision Agriculture ◽  
Soil Moisture Content ◽  
Irrigation System ◽  
Control Unit ◽  
Moisture Level ◽  
Soil Moisture Sensors ◽  
The Status ◽  
Automated Irrigation System

Automation of farm activities can transform agricultural domain from being manual and static to intelligent and dynamic leading to higher production with lesser human supervision. This paper proposes an automated irrigation system which monitors and maintains the desired soil moisture content via automatic watering. Microcontroller ATMEGA328P on Arduino Uno platform is used to implement the control unit. The setup uses soil moisture sensors which measure the exact moisture level in soil. This value enables the system to use appropriate quantity of water which avoids over/under irrigation. IOT is used to keep the farmers updated about the status of sprinklers. Information from the sensors is regularly updated on a webpage using GSM-GPRS SIM900A modem through which a farmer can check whether the water sprinklers are ON/OFF at any given time. Also, the sensor readings are transmitted to a Thing speak channel to generate graphs for analysis.

Hardware Design of Soil Moisture Wireless Monitoring System

2011 ◽  
Vol 304 ◽  
pp. 290-295
Author(s):  
Xia Fu Lv ◽  
Ping Luo ◽  
Hai Lin Yang ◽  
Yong Chen
Keyword(s):  
Soil Moisture ◽  
Data Collection ◽  
Moisture Content ◽  
Real Time ◽  
Monitoring System ◽  
Field Data ◽  
Soil Moisture Content ◽  
Time Measurement ◽  
Real Time Measurement ◽  
Field Data Collection

Proper soil moisture content is one of the necessary conditions for crop growth and steady yield. The soil moisture real time measurement is the basis of reasonable irrigation and an effective way for saving water resources. This paper presented a real-time monitoring system of volumetric soil moisture content. The system consisted of field data collection terminal and monitor center. The data is transmitted by wireless communication between the measurement field and monitor center. The soil moisture content is obtained by measuring the sensor frequency variation with the soil dielectric constant. With solar cell, solar energy was collected and stored in accumulator cell to provide power supply for field data collection terminal. The experimental result shows the system is operating good and working stably, it is promising to be used for real time measurement of soil moisture.

Analysis on Soil Moisture Content in the Middle Reaches of the Yellow River

2011 ◽  
Vol 28 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Run-chun LI ◽  
Xiu-zhi ZHANG ◽  
Li-hua WANG ◽  
Xin-yan LV ◽  
Yuan GAO
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Moisture Content ◽  
Yellow River ◽  
The Yellow River
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