Hyun Yoe

Study on an agricultural environment monitoring server system using Wireless Sensor Networks.

This paper proposes an agricultural environment monitoring server system for monitoring information concerning an outdoors agricultural production environment utilizing Wireless Sensor Network (WSN) technology. The proposed agricultural environment monitoring server system collects environmental and soil information on the outdoors through WSN-based environmental and soil sensors, collects image information through CCTVs, and collects location information using GPS modules. This collected information is converted into a database through the agricultural environment monitoring server consisting of a sensor manager, which manages information collected from the WSN sensors, an image information manager, which manages image information collected from CCTVs, and a GPS manager, which processes location information of the agricultural environment monitoring server system, and provides it to producers. In addition, a solar cell-based power supply is implemented for the server system so that it could be used in agricultural environments with insufficient power infrastructure. This agricultural environment monitoring server system could even monitor the environmental information on the outdoors remotely, and it could be expected that the use of such a system could contribute to increasing crop yields and improving quality in the agricultural field by supporting the decision making of crop producers through analysis of the collected information.

Study of the Ubiquitous Hog Farm System Using Wireless Sensor Networks for Environmental Monitoring and Facilities Control

Many hog farmers are now suffering from high pig mortality rates due to various wasting diseases and increased breeding costs, etc. It is therefore necessary for hog farms to implement systematic and scientific pig production technology to increase productivity and produce high quality pork in order to solve these problems. In this study, we describe such a technology by suggesting a ubiquitous hog farm system which applies WSN (Wireless Sensor Network) technology to the pig industry. We suggest that a WSN and CCTV (Closed-circuit television) should be installed on hog farms to collect environmental and image information which shall then help producers not only in monitoring the hog farm via the Web from outside the farm, but also facilitate the control of hog farm facilities in remote locations. In addition, facilities can be automatically controlled based on breeding environment parameters which are already set up and a SMS notice service to notify of deviations shall provide users with convenience. Hog farmers may increase production and improve pork quality through this ubiquitous hog farm system and prepare a database with information collected from environmental factors and the hog farm control devices, which is expected to provide information needed to design and implement suitable control strategies for hog farm operation.

A Wireless Sensor Network-Based Ubiquitous Paprika Growth Management System

Wireless Sensor Network (WSN) technology can facilitate advances in productivity, safety and human quality of life through its applications in various industries. In particular, the application of WSN technology to the agricultural area, which is labor-intensive compared to other industries, and in addition is typically lacking in IT technology applications, adds value and can increase the agricultural productivity. This study attempts to establish a ubiquitous agricultural environment and improve the productivity of farms that grow paprika by suggesting a ‘Ubiquitous Paprika Greenhouse Management System’ using WSN technology. The proposed system can collect and monitor information related to the growth environment of crops outside and inside paprika greenhouses by installing WSN sensors and monitoring images captured by CCTV cameras. In addition, the system provides a paprika greenhouse environment control facility for manual and automatic control from a distance, improves the convenience and productivity of users, and facilitates an optimized environment to grow paprika based on the growth environment data acquired by operating the system.

Agricultural Production System Based on IoT

There has been much research and various attempts to apply new IoT technology to agricultural areas. However, IoT for the agriculture should be considered differently against the same areas such as industrial, logistics. This paper presents the IoT-based agricultural production system for stabilizing supply and demand of agricultural products while developing the environment sensors and prediction system for the growth and production amount of crops by gathering its environmental information. Currently, the demand by consumption of agricultural products could be predicted quantitatively, however, the variation of harvest and production by the change of farms cultivated area, weather change, disease and insect damage etc. could not be predicted, so that the supply and demand of agricultural products has not been controlled properly. To overcome it, this paper designed the IoT-based monitoring system to analyze crop environment, and the method to improve the efficiency of decision making by analyzing harvest statistics. Therefore, this paper developed the decision support system to forecast agricultural production using IoT sensors. This system was also a unified system that supports the processes sowing seeds through selling agricultural products to consumers. 3 Corresponding author The IoT-based agricultural production system through correlation analysis between the crop statistical information and agricultural environment information has enhanced the ability of farmers, researchers, and government officials to analyze current conditions and predict future harvest. Additionally, agricultural products quality can be improved because farmers observe whole cycle from seeding to selling using this IoT-based decision support system.

Study on the Context-Aware Middleware for Ubiquitous Greenhouses Using Wireless Sensor Networks

Wireless Sensor Network (WSN) technology is one of the important technologies to implement the ubiquitous society, and it could increase productivity of agricultural and livestock products, and secure transparency of distribution channels if such a WSN technology were successfully applied to the agricultural sector. Middleware, which can connect WSN hardware, applications, and enterprise systems, is required to construct ubiquitous agriculture environment combining WSN technology with agricultural sector applications, but there have been insufficient studies in the field of WSN middleware in the agricultural environment, compared to other industries. This paper proposes a context-aware middleware to efficiently process data collected from ubiquitous greenhouses by applying WSN technology and used to implement combined services through organic connectivity of data. The proposed middleware abstracts heterogeneous sensor nodes to integrate different forms of data, and provides intelligent context-aware, event service, and filtering functions to maximize operability and scalability of the middleware. To evaluate the performance of the middleware, an integrated management system for ubiquitous greenhouses was implemented by applying the proposed middleware to an existing greenhouse, and it was tested by measuring the level of load through CPU usage and the response time for users’ requests when the system is working.

Design and Implementation of Wireless Sensor Network for Ubiquitous Glass Houses

Recently, there are many researches to enable future ubiquitous environments based on wireless sensor network (WSN). Various sensing devices deployed in wireless sensor network collect meaningful data from physical environments and the data are delivered to neighbor node through radio interfaces for further processing. The representative application in WSN is a data collecting system, which monitors physical phenomena and gathers data around our life. In this system, sensor nodes can be considered as a kind of database and hosts connected to the Internet, in most cases, initiate some queries destined to WSN and collect query responses from WSN. In this study, the efficient use of limited energy efficiently for the WSN based large scale glass houses was researched. We designed an integration method which was based on WSN Gateway which integrated two different networks efficiently. To realize the proposed design, we implemented an efficient routing method and WSN Gateway in the wired and wireless integrated networks in ubiquitous glass houses.

Comparative Analysis and Design of Wired and Wireless Integrated Networks for Wireless Sensor Networks

Plenty of new routing protocols have been presented to overcome the difficulty in applying the routing protocol which was proposed for the existing wireless networks (IEEE 802.11) to WSN. Therefore, this paper presents the wired and wireless integrated networks which transmit the information collected from the wireless sensor networks to wired networks via WSN Gateway. At this time, this paper embodies the Zigbee protocol in the wireless networks based on the 802.15.4 standard and designs an advanced routing protocol for wired and wireless integrated networks by modifying the existing ad hoc routing protocol to enable access to wired networks such as the internet. Moreover, we design an integration method which is based on WSN Gateway which integrates two different networks efficiently. To evaluate the proposed research, we simulated an advanced routing method and WSN Gateway in the wired and wireless integrated networks using the NS-2 simulator.

A context-aware service model based on workflows for u-agriculture

In agricultural processes, many works may need to be automated, because those are very hard labors or time-consuming jobs for farmers. Workflow technologies, which have successfully been a good model for a service automation in various computing environments, can be used as a possible service automation model in agriculture. A workflow for u-agriculture may need various contexts sensed from real sensor networks for service automation. Recently, many researches have applied workflow technologies into the various fields such as smart home, u-health care, u-city, u-port, and u-agriculture. However, many current workflow service have difficulty to control work processes and execute services according to context information in u-agricultural environment. This paper proposes a context-aware service model for u-agriculture, which is based on workflows and is aimed at supporting smart workflow services based on ubiquitous sensor networks in u-agriculture. With the proposed context-aware service model, developers can easily integrate various service demands into a service workflow, and can easily develop a context-aware workflow service for u-agriculture. Therefore, the proposed service model can be greatly helpful in the development of smart applications or the work automation in the fields of u-agriculture.

Towards a smart service based on a context-aware workflow model in u-agriculture

This paper proposes a smart service model based on a context-aware workflow model in u-agriculture. The suggested service model uses context information to smartly control whether to execute a service of a flow or not. So, a service flow following the suggested service model can be automatically controlled according to context information from sensors around the agricultural environments. The proposed model supports a flow pattern to reutilise previous flows through an external reference in making a new smart service application. With the flow pattern, users can flexibly compose a smart service flow according to their intention, and can easily merge several small flows into a bigger or new workflow.

Design of Ubiquitous Glass Green Houses

Green House is one of the representative models of modern agriculture business. As IT fields develop rapidly we study the methodology of applying IT to agriculture. This paper proposes a Ubiquitous glass Green Houses Management System (U-GHMS) based on USN (Ubiquitous Sensor Network) which can be real-time monitoring and controlling of Green houses facilities by collecting environment and soil information with environment and soil sensors, and CCTV camera. The system can remotely monitor and control green house by considering environment information. The system includes the Sensor Manager and the CCTV Manager to gather and manage green house information with the soil and the environment sensors, and camera. Also the system has the Green House Database storing green house information and the Green House Server transmitting greenhouse information to the GUI and controlling green house. Finally, the GUI showing green house condition to users exists in our system. To verify the executability of the U-GHMS, after developing a green house model, we confirm that our system can monitor and control the green house condition at remote GUI by applying the U-GHMSs components to the model.