Virtual On line
June 22, 2020
June 22, 2020
June 26, 2021
Many people enjoy having plants in their homes and offices. The plants can help purify the air by removing toxins and provide a better atmosphere. However, many people may also struggle to provide the correct amount of water to their plants by either over or lack of water issues. This often leads to dried leaves and rotting roots, and, eventually, a dead plant. A smart and cost effective indoor plant irrigation system may allow users to connect multiple plants to a single automated watering system with improved plant growth features. This paper presents a senior design project completed in a B.S. Electronics and Computer Engineering Technology program to design and build a smart and cost-effective indoor irrigation system (SCEIIS) that provides accurate humidity conditions for enhanced and healthy plant growth purposes. The system provides a user interface to allow the user to input the soil moisture requirement by utilizing its hardware and software, and to check soil moisture levels against the user input. If the levels are under the set requirement, the SCEIIS system activates a small pump in the water reservoir and provides the plant water that will help mitigate issues people face keeping plants indoors. This unique indoor plant irrigation system also uses NI LabVIEWTM to monitor and display system variables such as temperature and humidity for enhanced operation and necessary audio and visual warning to users. The SCEIIS utilizes two cost effective microcomputers, a Raspberry Pi to run the software, and an Arduino Uno to support physical components of the system that periodically test moisture levels using soil moisture sensors and use test the data against the user set values. If the data shows that the moisture levels are lower than the user set values, then the program sends a signal to the Arduino Uno to activate the water pump connected to the specific plant that requires water. After a certain amount of time, the water pumps are deactivated and the program continues to test the levels. With an approximate cost of $275, the SCEIIS system is expected to assist people in caring for their plants by keeping track of the soil moisture levels in multiple plants and supply water via a pump located in the shared reservoir. Students in the Engineering Technology program also used NI LabVIEWTM knowledge and skills to add an instrumentation and data acquisition feature by a myDAQ module to the SCEIIS system that provided plant owners to monitor and control plants. The conceptual design, functional block diagram, hardware and software units, overall system operation and necessary LabVIEW Virtual Instruments (VIs) are provided. This unique project provides necessary assessment data for both senior design and instrumentation and data acquisition courses in a B.S. in Engineering Technology Program.
Pecen, R., & Yildiz, F., & Gibson, M. (2020, June), Design and Implementation of a Smart and Cost-effective Indoor Irrigation System (SCEIIS) Paper presented at 2020 ASEE Virtual Annual Conference Content Access, Virtual On line . 10.18260/1-2--34392
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