The Application of Fuzzy Control in Greenhouse Environment Control

2014 ◽  
Vol 543-547 ◽  
pp. 1432-1435 ◽  
Author(s):  
De Hui Zhang ◽  
Xiao Qiang Wu ◽  
Chun You Zhang
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Environmental Parameters ◽  
Human Control ◽  
Temperature And Humidity ◽  
Combined Control ◽  
Environment Control ◽  
Upper Computer ◽  
Environment Parameters ◽  
Is Design

For the control of greenhouse environment parameters, a combined control system of the temperature and humidity inside the greenhouse according to the fuzzy control theory is design, which is of distributed control structure. The whole control system is divided into upper computer (personal computer) and the lower machine (SCM). Upper machine and lower machine adopt the Modbus fieldbus to communicate, which can effectively improve the efficiency of communication, to ensure accurate communication. Tracking control of temperature and humidity in the control system uses fuzzy control technology, which can effectively summarize and utilize human control experience, and regulate the environmental parameters according to need of crop growth automatically. Finally, through experiment, it is proved that the control system has achieved the anticipated target.

Research on Control System of Energy-Saving Greenhouse

2013 ◽  
Vol 448-453 ◽  
pp. 1312-1315
Author(s):  
Qun Li
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Humidity Sensor ◽  
Environmental Parameters ◽  
Single Chip ◽  
Greenhouse Production ◽  
Temperature And Humidity ◽  
Digital Temperature Sensor ◽  
The Cost ◽  
Energy Intensive Industries

Energy-saving and environmental protection has become the theme of the 21st century. Greenhouse is an energy-intensive industries. Every year, 35% of energy consumption on agricultural production is used for greenhouse heating in the world, which accounts for 15-40% of the cost of greenhouse production. For improving energy efficiency and protecting the environment, the reasonable control of greenhouse environmental parameters is significant. The design of solar greenhouse real-time environment monitoring and automatic control system is based on 8051 single-chip in the thesis. The temperature and humidity signal are obtained from DS18B20 digital temperature sensor and IH3605 humidity sensor. When the greenhouse temperature exceeds the set temperature, the device can be started by perform timely processing, then the user can read LED digital display temperature and humidity values.

Wireless Control System for Plug Seedlings Environment Based on GPRS

2013 ◽  
Vol 303-306 ◽  
pp. 1311-1314 ◽  
Author(s):  
Ji Zhang Wang ◽  
Ping Ping Li ◽  
Yu Li Peng
Keyword(s):  
Control System ◽  
Web Server ◽  
Control Unit ◽  
Monitoring And Control ◽  
Terminal Unit ◽  
Remote Terminal ◽  
Control Scheme ◽  
Remote Terminal Unit ◽  
Environment Control ◽  
Environment Parameters

In order to realize remote monitoring and control for the environment of plug seeding, the environment control system based on GPRS was developed. The systems includes environment sensors, GPRS remote terminal unit (RTU), control unit and WEB server. Through the GPRS network to transmission the environment parameters, and upload data via the Internet to the web server. According the environment parameters, the server get the optimal control scheme based on model. Then transmit the control scheme to the remote terminal unit (RTU) through the GPRS network. The RTU get the control scheme, the control unit send the control signal to the control equipment. This system can achieve real-time control of environment parameters for plug seedling.

Research on Control System of Greenhouse Temperature and Humidity Based on Fuzzy PID

2014 ◽  
Vol 687-691 ◽  
pp. 3395-3398 ◽  
Author(s):  
Xiao Min Shan
Keyword(s):  
Control System ◽  
Fuzzy Inference ◽  
Control Variable ◽  
Response Speed ◽  
System Response ◽  
Fuzzy Pid ◽  
Control Effect ◽  
Factors Affecting ◽  
Temperature And Humidity ◽  
Environment Control

Rational utilization of greenhouse environment control technology can greatly increase crop yield, improve product quality, realize the agricultural production, increasing farmers' income. For greenhouse nonlinear, time-varying, time delay and multivariable coupling problem, the temperature, humidity, light intensity and the concentration of our fleet, and other factors affecting the analysis, the fuzzy inference is applied to the control systems of greenhouse environment, and transforms expert experience and knowledge behavior into the corresponding fuzzy control rules; combined with theory of PID, and temperature and humidity as control variable fuzzy PID system is established. The simulation results show that the system response speed, strong anti-jamming capability, combined with theory of PID, it has a better control effect on the temperature and humidity in the greenhouse environment, and provide some reference for the design of intelligent greenhouse automatic control system.

scholarly journals Design and implementation of fuzzy control system for egg incubator based on IoT technology

2021 ◽  
Vol 1208 (1) ◽  
pp. 012038
Author(s):  
Edin Mujčić ◽  
Una Drakulić
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Experimental Work ◽  
Optimal Level ◽  
Poultry Production ◽  
Human Intervention ◽  
Work Analysis ◽  
Fuzzy Control System ◽  
Design And Implementation ◽  
Temperature And Humidity

Abstract Nowadays, automatic systems are using in more spheres of industry, and in this way, human intervention is avoided and used as minimally as possible. In the chicken poultry industry, the use of mother hens is transferring to automatic egg incubating systems. Such systems are helpful for the farmers to incubate the eggs automatically without the need for human intervention. These systems work by keeping the physical quantities, temperature and humidity, at the optimal level. In that way, the fetuses inside eggs are growing without the presence of the mother hen. The egg incubating systems not only improve poultry production considerably but also help in the regularity of income making, enabling the farmers to be able to get transition into possible rural entrepreneurship. This paper describes the design and implementation of a fuzzy control system for egg incubating based on IoT technology. The microcontroller is programmed to work as a fuzzy logic control system for controlling microclimate conditions in the egg incubator to keep the conditions for different eggs type optimal. Informations from the temperature and humidity sensors are sent wirelessly to the cloud. Also, the implemented egg incubating system enables automatic tracking of the remaining days until hatching chickens. In this way, remote monitoring, from any location, of microclimatic conditions inside the egg incubator is enabled. For the experimental work analysis of the implemented egg incubating system, the egg incubator is made. Based on the results of the experimental work analysis can be seen that the egg incubating system works well and that it helps with improving poultry production.

Design of the Control System for Chinese Mitten Crab Nurturing Megalopa Based on Fuzzy-Control Technology

2014 ◽  
Vol 644-650 ◽  
pp. 41-44
Author(s):  
Hong Guang Cui ◽  
Wen Tao Ren ◽  
Bo Wang
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Control Method ◽  
Fuzzy Controller ◽  
Ph Value ◽  
Water Environment ◽  
Control Unit ◽  
Environmental Water ◽  
Mitten Crab ◽  
Environment Control

Using the indoor control system of breeding mitten crab could increase the survival rate and quality effectively. This paper based on the analysis of environmental water quality of breeding mitten crab, according to the characteristics of crab cultivation of water environment, then the method of fuzzy control was proposed to realize the automatic control, the application of MATLAB software complete the design of the fuzzy controller. Combining STC12C5A08AD single chip as mainly control unit and fuzzy control method, design the hardware and software of the crab cultivation environment control system, and the design of fuzzy controller. In the case of the pH control test results, the system performance approximately for the time constant of a character of first-order inertial of 27.535s, which caters the requirement of pH value of crab cultivation. The invention of this controlling system can be a fundament of control of aquaculture environment.

scholarly journals Fuzzy Logic Based Environment Control of Operation Theatre

2021 ◽  
Vol 12 (1S) ◽  
pp. 220-232
Author(s):  
Sakshi Srivastav, Et. al.
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Fuzzy Logic Control ◽  
Fuzzy Logic Controller ◽  
Environmental Control ◽  
Environmental Parameters ◽  
Operation Theatre ◽  
Micro Particles ◽  
Logic Control ◽  
Environment Control

It is very critical and important to maintain the appropriate climatic conditions in the operation theatre. In paper, we present an approach to control total environmental conditions for the operation theatre. Generally for environmental control of operation theatre air conditioning system is installed. In operation theatre environmental parameters like humidity, temperature, oxygen and particles etc. have to be controlled precisely. All the environmental parameters are of nonlinear nature hence, difficult to control or model with the help of conventional control systems. Keeping in mind the complexity and nonlinearity of these parameters as fuzzy logic controller (FLC) for controlling all the environment of operation theatre has been designed. For this fuzzy logic control system temperature, micro particles, humidity & oxygen have been taken as input parameters and based on these parameters  speed of AC motor as well as the speed of exhaust motor are controlled. The control system is implemented with the help of different fuzzy rules and their membership functions derived from actual conditions. The performance of the system for control of operation theatre was studied and it has been observed that the result obtained with the fuzzy logic control system provides more effective and economical control. The fuzzy logic control system has been implemented using fuzzy Tech development tool.

Design of Embedded Control System on Greenhouse Environment Based on GSM and GPS

2011 ◽  
Vol 101-102 ◽  
pp. 118-122
Author(s):  
Fei Qing Wu ◽  
En Jun Yu ◽  
Cai Xiang Liu
Keyword(s):  
Control System ◽  
Real Time ◽  
Field Test ◽  
Crop Growth ◽  
Monitor System ◽  
Embedded Control ◽  
Embedded Control System ◽  
Temperature And Humidity ◽  
Environment Control ◽  
Short Messages

At present, the environment control system is mainly used in large and modern greenhouses in China. It is hard to popularize among ordinary farmers because of some reasons such as inconvenient acquiring information, etc. In order to improve the existing problem, a wireless remote greenhouse environment monitor system was developed based on GSM and GPS. Thus the user can obtain real-time temperature and humidity of different greenhouses at any time by sending short messages to the control system so as to know the crop growth. The system, easier to move and operate, can be expanded according to practical need and is reliable and effective through field test.

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