Design of a Smart Air Conditioning Controller Based on the Occupancy of a Building (original) (raw)
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Development of intelligent air-conditioning system
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This paper presents an air-conditioning system that regulates room temperature via the use of multiple-sensor system that is named as “Intelligent Air-Conditioning System”. Airconditioning system has become one of most important human comfort technologies especially for countries near the equator. Conventional methods of regulating room temperature by air-conditioning system using single sensor have been integrated into most of today’s split type and window type air-conditioner. The demands from customer now from air condition technology are for more human comfort, energy saving and smart gadgetry thus the trend in research is to incorporate artificial intelligent technology in this field. However, many research in this area concentrate on maximizing the use of a single located near the air intake area of the air-conditioning system. In this paper we present a case for the use of multiple sensors to determine the temperature distribution more accurately throughout the room and creat...
Implementation of a Smart AC Automation System with Room Temperature Prediction
Journal of the Bangladesh Electronic Society, 2018
Room Temperature prediction in Air Conditioners is highly challenged and ambiguous in today's life. To develop the system, some hardware like raspberry pi zero, thermal sensor, microcontroller, IR sensor and the room's AC with existing remote are used. The proposed system is implemented through an embedded system by using the Python programming language. Based on the data, a mathematical formula can be derived and an algorithm of the proposed system has been designed and developed for the predicted temperature data with the values of the two sensors. The sensors are used to detect temperature and the AC performs automatically turn on or turn off. This system can be implemented in any smart AC room where anyone can utilize the AC system automatically switched on/off with the predicted temperature. This also can used in all over the places including for disabled peoples, personal room, conference room, hall room, classroom and transports, where manually control of AC is not feasible.
A Smart Embedded System Model for the AC Automation with Temperature Prediction
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A model of an automated temperature prediction on smart AC system for a room has been designed, developed and implemented with an embedded system. In a room, temperature of object (like human being) with the environment is detected, identified and analyzed, with an ideal temperature. Based on data, a mathematical formula can be derived and an algorithm has been formed by using the mathematical formula of the predicted temperature data and the values of the two sensors, where sensors are used for object temperature detection and the AC perform automatically turned on or turned off. Python programming language with its default library has been used to code for the successful implementation of the algorithm. This proposed embedded system can be implemented in any smart AC room where anyone can utilize the AC system automatically switched on/off with the predicted temperature. Exploit this embedded system in all over the places including for disabled peoples, personal room, conference room, hall room, classroom and transports, where manually control of Air conditioner is not feasible.
This paper presents the design and performance analysis of a programmable power controller (PPC) to reduce electrical energy consumption of heating, ventilating, airconditioning (HVAC) devices used in office buildings. This PPC operates based on the pre-programmed turning-on and turning-off HVAC devices such as air conditioners, fans, etc. including lightings in a building automatically with the use of a computer program. Programming can be done either based on pre-scheduled functioning of the devices considering the users behaviour or using feedback sensors of the room conditions. It concludes that in general there is still common to find the negligence of occupants/users to turn off the HVAC equipments of the building under consideration, being potential as priorities of energy management and conservation measures. It shows also that the use of PPC is prospective in energy management and conservation efforts, resulting in a prospective reduction of up to 20%-30% of electrical energy consumption of the building under study.
Temperature Controlled Automatic Air Conditioning System
Due to global warming and various other reasons, temperature of earth is increasing day by day. Because of this it is too hot during summer season and too cold during winter season. Compared to past days, it is even difficult to walk in day time and to sleep in night time during summers. Likewise during winter season we need to get wrapped up with thick clothes to protect ourselves from cold. Though people can never overcome or win over nature, they have at least discovered cooling and heating devices to protect themselves from weather extremities. Since we need cooling device during summers and heating device during winters, instead of having separate units, we can have a single unit which can perform both the functions of heating and cooling. The single system which can perform both the functions of cooling and heating is called air conditioning system. It is called so because air has to be heated or cooled (conditioned) to give us comfort. In this context, we have conducted a minor project entitled “TEMPERATURE CONTROLLED AUTOMATIC AIR CONDITIONING SYSTEM” under the subject MINOR PROJECT(EX654) specified by Institute of Engineering,Tribhuvan University.The main theme of this project is to furnish a system which automatically monitor the room temperature and circulate fresh air inside the room.Essentially,this project have been designed using embedded system components like microcontrollers(ATMEL AT89S52) and various other components like ADC,optocoupler,darlington transistor etc.
Environmental Management and Sustainable Development
Air-conditioning as a technical solution to protect inhabitants from excessive heat exposure creates the challenge of expanding indoor health effects. While air-conditioning has mostly been applied as an improvement to living conditions, health and environmental problems associated with its use frequently occurs. Therefore, this paper challenges and extends existing knowledge on sustainability related to the smart air-conditioning systems. The decrease of CO2 level in building requires an intelligent control system because energy utilisation has been legitimately connected with wellbeing and eventually to operational expenses. A building’s indoor environmental essential factors of comfort are IAQ, visual and thermal. Through an appropriate structured controller, the performance of indoor control system can be altogether improved. It merits creating innovative control techniques to optimise the indoor environment quality for air-conditioning system. The newly proposed backpropagation...
Objectives: Home automation is achievable with an integrated approach using Wireless Sensor Networks (WSNs). This paper presents the implementation of such integrated approach to automating the air-conditioning of various apartments. Methods/Statistical Analysis: The developing of an integrated system consisting of network of wireless sensor nodes with well selected components and resourceful capabilities is explained. This network is incorporated to a control unit connected to air-conditioning systems in various home apartments for automation and central remote control through short service message (sms). Findings: An integrated system comprising three resulting characterized sensor nodes and one sink node being integrated with the automated control unit for the air-conditioning systems were implemented and tested. The system was designed with well selected intelligent temperature/humidity DHT22 sensors, homogenous XBee radios, arduino boards and wireless network protocol to deliver remotely monitored parameters from the sensor nodes to a base station. The resulting composite units of the implemented system were products of the best parameters trade-off in the selection of components and protocols. The same sensor nodes can be increased to the number of target apartments and integrated to the network system. The transfer of monitored data to the central hub was wireless and the mode of sending commands to the control unit was through short message service. The approach conserves energy consumption as it saves the loss time involved in continuous operation of air-conditioning systems. The system also reduces the health risk in poorly air-conditioned environment for elderly and infants. Applications/ Improvements: The approach can be extended to controlling other appliances in full home automation set-up.