Greenhouse automation: smart watering system for plants in greenhouse using programmable logic control (PLC)

Abstract

Automation is a technology used to carry out work processes or procedures without human assistance. Greenhouse automation is carried out related to the many operational activities in the greenhouse that involve many human repetitive activities. Some of them are related to fertilizing, watering, spraying pesticides and others. In the current era of the industrial revolution 4.0, manual activities that use human labor began to diminish and were replaced with automated systems and devices in order to streamline the operation of a work field,. PLCs can be defined as a micro-computer based controllers that use instructions stored in memory that can be programmed to implement logic, sequencing, timing, counting and arithmetic functions through digital or analog input / output (I / O) modules, to control machines and processes. This PLC is commonly used in the industrial world as an automation tool for production machines. PLC can be implemented as an automation tool in a greenhouse in this case as an automatic watering system for plants. This research resulted in a prototype of an automatic watering system on a clock based and combined clock-sensor based greenhouse that can run simultaneously on the same PLC.

PLC control method for speed regulation of automatic frequency converter of high-voltage electrical equipment

“…In formula (6), Fb represents the control power output parameters, v v represents a control constraint, e represents the amount of control output error. The above control equation can be used to quickly adjust the state of the automatic frequency converter of high-voltage electrical equipment to ensure the final control stability to the greatest extent.…”

“…At the same time, it has many different control production functions such as calculation, timing, etc., which is of great significance to improve the production efficiency of enterprises. Before the PLC controller is used, it is often necessary to set the control command in advance and adjust it according to the actual control requirements [4][5][6] to meet the subsequent automatic production requirements. During the working process of the inverter, the frequency of the motor working power supply can be constantly changed to ensure the stability of the control.…”

Social Innovation of PT. Pertamina EP Pendopo Field for Conservation the Protected Orchid Plants in Selangit Village, Musi Rawas Regency

“…The greenhouse is one of the agricultural technologies used to protect plants from sunlight intensity, and exposure to high rainfall so as to maintain an optimal climate and environment for plants. Greenhouse technology has become popular for its ability to increase crop productivity, quality, and quantity (Dwinugroho et al, 2021). The construction of the greenhouse is part of the orchid conservation program by empowering the community.…”

Designing monitor and control system of internet of things (IoT) based solar powered smart greenhouse prototype

“…Many researches have been done related to IoT based greenhouse both domestically and internationally with various controllers and sensors such as wireless sensor Zig Bee, ATMEGA-328 controller, Arduino, Raspberry Pi, Dragino LoRa, fuzzy neural network methods, STM-32 Controller, and Programmable Logic Controller (PLC). [1][2][3][4][5][6][7][8][9] While the particular research regarding solar energy in Bangka Belitung Islands of Province is "Comparative efficiency solar panels and wind turbine DC generator as green energy sources in Bangka Island" [10].…”