scholarly journals Wireless Sensor Network Applications in Healthcare and Precision Agriculture

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Naila Nawaz Malik ◽  
Wael Alosaimi ◽  
M. Irfan Uddin ◽  
Bader Alouffi ◽  
Hashem Alyami

A wireless sensor network is a large sensor hub with a confined power supply that performs limited calculations. Due to the degree of restricted correspondence and the large size of the sensor hub, packets sent through the sensor network are based primarily on multihop data transmission. Current wireless sensor networks are widely used in a range of applications, such as precision agriculture, healthcare, and smart cities. The network covers a wide domain and addresses multiple aspects in agriculture, such as soil moisture, temperature, and humidity. Therefore, issues of precision agriculture at the output of the network are analyzed using a star and mesh topology with TCP as the transmission protocol. The system is equipped with two sensors: Arduino DFRobot for soil moisture and DHT11 for relative temperature and humidity. The experiments are performed using the NS2 simulator, which provides an improved interface to analyze the results. The results showed that the proposed mechanism has good performance and output.

Author(s):  
Ortega-Corral César ◽  
B. Ricardo Eaton-González ◽  
Florencio López Cruz ◽  
Laura Rocío, Díaz-Santana Rocha

We present a wireless system applied to precision agriculture, made up of sensor nodes that measure soil moisture at different depths, applied to vine crops where drip irrigation is applied. The intention is to prepare a system for scaling, and to create a Wireless Sensor Network (WSN) that communicates by radio frequency with a base station (ET), so that the gathered data is stored locally and can be sent out an Internet gateway.


2019 ◽  
Vol 13 (2) ◽  
pp. 123-130 ◽  
Author(s):  
Santosh R. Durugkar ◽  
Ramesh C. Poonia ◽  
Radhakrishna B. Naik

Background: India is the land of agriculture. Agriculture and gardening is not only done at a huge level but also at small piece of land, it is a backbone of Indian economy. Small gardens are maintained within the boundary of home. Water consumption in agriculture and gardening is at high level. But due to irregular monsoon and decreased ground water level it is hard to irrigate the farm and gardens. We have referred 03 patents which motivated us to revolutionize the agriculture sector. Objectives: Initial stages our scope is limited to home garden and we have proposed a GUI with which end user can get many things such as pH of the soil, conductivity and TDS of the water, temperature and humidity relationship, effect of temperature and humidity on the moisture, soil analysis, moisture holding capacity of the soil etc. Irrigation plays important role in yielding of any plant. In this proposed system, we have proposed a priority driven based irrigation model that supplies optimum and good quality water to the crops with the help of Wireless Sensor Network. Methods: This proposed model is based on sensing the soil moisture, temperature, humidity and other factor which affect the irrigation and supplies the water according to the priority of the requirement to the plant. It is crop independent system, which can be implemented for basic crops, commercials crops, garden and orchards, as basis for this proposed system is important to immediately irrigate the plant wherever soil moisture level will be less. Smart irrigation is the new trend and we can say thirst now a days and it is the major requirement due to many critical factors such as irregularity of monsoon, less availability of water etc. Even though sufficient water is available still we have to make sure whether it is good to use for better yielding of crops. At the same time temperature, humidity, air flow, soil moisture will play important roles in better crop yielding. Wireless sensor network in which ‘n’ no. of issues need to be discussed for the smooth execution of various tasks. Some challenges have been pointed out through this work and important issues which must be considered. Conclusion: final testing shows how this approach is beneficial to the society. In agriculture and gardening now onwards water consumption will be at low level. At the same time this proposed system shows additional advantages to the end user i.e. quality of water utilization in terms of TDS, Conductivity and pH of the water. Similarly, w.r.t. soil, if due to excess utilization of fertilizers and pesticides pH is changing then also same thing will be noticed by avoiding future losses.


2016 ◽  
Vol 12 (05) ◽  
pp. 43 ◽  
Author(s):  
Yuhong Zhou ◽  
Yunfang Xie ◽  
Limin Shao

To solve the topology structure of a greenhouse environment-monitoring system and the ductility of joints, this study presents a design of a greenhouse-monitoring system based on the ZigBee wireless sensor network (WSN). The hardware and software designs of the network node are provided, and the process of the ZigBee network coordinator is elucidated. The system uses the microcontroller unit PIC18F4620CC2420 wireless transceiver module to send and receive data. Data from temperature and humidity sensors are collected using an inter-integrated circuit bus through the ZigBee network transmission to the monitoring platform. Test results show that the system has the advantages of having a simple structure, flexible nodes, and low power consumption. It can effectively monitor the temperature and humidity in a wireless environment. WSNs considerably help in greenhouse environment monitoring. The use of advanced technology to control greenhouse temperature and humidity can satisfy the optimum growth environment of greenhouse crops and effectively improve the yield and quality of crops. The application of WSNs in greenhouse monitoring is significant to the development of modern and precision agriculture in China.


Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7243
Author(s):  
Jaime Lloret ◽  
Sandra Sendra ◽  
Laura Garcia ◽  
Jose M. Jimenez

The use of precision agriculture is becoming more and more necessary to provide food for the world’s growing population, as well as to reduce environmental impact and enhance the usage of limited natural resources. One of the main drawbacks that hinder the use of precision agriculture is the cost of technological immersion in the sector. For farmers, it is necessary to provide low-cost and robust systems as well as reliability. Toward this end, this paper presents a wireless sensor network of low-cost sensor nodes for soil moisture that can help farmers optimize the irrigation processes in precision agriculture. Each wireless node is composed of four soil moisture sensors that are able to measure the moisture at different depths. Each sensor is composed of two coils wound onto a plastic pipe. The sensor operation is based on mutual induction between coils that allow monitoring the percentage of water content in the soil. Several prototypes with different features have been tested. The prototype that has offered better results has a winding ratio of 1:2 with 15 and 30 spires working at 93 kHz. We also have developed a specific communication protocol to improve the performance of the whole system. Finally, the wireless network was tested, in a real, cultivated plot of citrus trees, in terms of coverage and received signal strength indicator (RSSI) to check losses due to vegetation.


Processes ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1693
Author(s):  
Chanchan Du ◽  
Lixin Zhang ◽  
Xiao Ma ◽  
Xiaokang Lou ◽  
Yongchao Shan ◽  
...  

Scientific researchers have applied newly developed technologies, such as sensors and actuators, to different fields, including environmental monitoring, traffic management, and precision agriculture. Using agricultural technology to assist crop fertilization is an important research innovation that can not only reduce the workload of farmers, but also reduce resource waste and soil pollution. This paper describes the design and development of a water-fertilizer control system based on the soil conductivity threshold. The system uses a low-cost wireless sensor network as a data collection and transmission tool and transmits the data to the decision support system. The decision support system considers the change in soil electrical conductivity (EC) and moisture content to guide the application of water-fertilizer, and then improves the fertilization accuracy of the water-fertilizer control system. In the experiment, the proposed water-fertilizer control system was tested, and it was concluded that, compared with the existing traditional water-fertilizer integration control system, the amount of fertilizer used by the system was reduced by 10.89% on average, and it could save 0.76–0.87 tons of fertilizer throughout the whole growth period of cotton.


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