Development of Short-term Evapotranspiration Forecasting Model using Time Series Method to Support The Precision Agriculture Management in Tropics

Open field tropical horticulture production is highly affected by the uncontrollable environment. Consequently, farmer manages their farming activity so as to adapt the environment, such as an appropriate planting schedule, plant maintenance, and daily irrigation. Nowadays, climate change intensifies unpredictable weather and unstable climate distribution. The precision farming approach was introduced by the utilization of … Read more

Automatic Leaf Motion Analysis Using Optical Flow To Diagnose Plant Behavior In Response To Environmental Changes

Abstract: We have proposed an automatic leaf motion analysis based on Infrared (IR) photography. The proposed system allows continuous, high-resolution time-lapse imaging, independent of the present of visible light, and based on open source platform. The utilization of microcomputer as a capturing unit might increase the simplicity and flexibility. The IR camera positioned above the … Read more

Study on Plant Motion Measurement and Analysis Utilizing Computer Vision: Development of Automatic Plant Motion Analysis using Optical Flow

Plants, like other living things, have biological clocks that allow them to respond the changes in time and environment1). At day, plants do photosynthesis to produce carbohydrate such as sugar. While at night, plants distribute the stored the carbohydrate to grow leaves, stem flowers, fruits, and roots. Analysis of plant growth and motion at night … Read more

Development of Smart Cloud-based Irrigation Controller: Real-time Evapotranspiration Monitoring in Tomato Greenhouse

The smart irrigation controller is a controller that reduces water use by monitoring and utilizing site environmental information and applying the right amount of water. These controllers receive feedback from the irrigated system and adjust irrigation duration and/or frequency accordingly. There are generally two types of smart controllers: climatologically based and soil moisture-based. Climatologically based … Read more

Example of Latex page

[latexpage] At first, we sample $f(x)$ in the $N$ ($N$ is odd) equidistant points around $x^*$: \[ f_k = f(x_k),\: x_k = x^*+kh,\: k=-\frac{N-1}{2},\dots,\frac{N-1}{2} \] where $h$ is some step. Then we interpolate points $\{(x_k,f_k)\}$ by polynomial \begin{equation} \label{eq:poly} P_{N-1}(x)=\sum_{j=0}^{N-1}{a_jx^j} \end{equation} Its coefficients $\{a_j\}$ are found as a solution of system of linear equations: \begin{equation} \label{eq:sys} \left\{ … Read more

Research on Agricultural Informatics – Utilization of ICT to Improve The Agricultural Production System in Tropical Country

Environmental conditions is important factor affects the agricultural production system. In four seasons country like Japan, weather condition during cultivation can be fully controlled by utilization of greenhouse and environmental management. Microclimate manipulator can be managed automatically based on environmental evaluation. However, in tropical country like Indonesia, utilization of automatic control on greenhouse for agricultural … Read more