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Jeongho Kang

Bio: Jeongho Kang is an academic researcher from Kyungpook National University. The author has contributed to research in topics: Air conditioning. The author has an hindex of 1, co-authored 1 publications receiving 26 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, an integrated comfort sensing system on indoor climate using humidity, temperature and air flow sensors with integrated driving and amplifying circuit is presented, which can provide an effective means of measuring the indoor comfort sensing index of a human being.
Abstract: This research is about an integrated comfort sensing system on indoor climate using humidity, temperature and air flow sensors with integrated driving and amplifying circuit. The comfort sensing appears to be highly sensitive to temperature and air flow. We have designed and fabricated a one-bodied humidity/temperature sensor and a flow sensor. In order to drive sensors and amplify signals, the ASIC chip has been designed and integrated by CMOS technology. Because the first ASIC chip was not good for driving and amplifying signals, we designed and fabricated a different OP-AMP cell of the circuit. The microcontroller calculates a predicted mean vote (PMV) and comfort sensing vote (CSV) with sensing signals and displays a PMV on liquid crystal display (LCD) for human comfort on indoor climate. Our work has demonstrated that an integrated comfort sensing system can provide an effective means of measuring the indoor comfort sensing index of a human being. Experimental results with simulated environment clearly suggest that our sensing system can be used in many applications such as air conditioning system, feedback controlling in automobiles, homes, hospitals, etc.

27 citations


Cited by
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Proceedings ArticleDOI
19 Sep 2005
TL;DR: In this article, a thermal comfort controller for indoor thermal environment regulation is proposed, where predicted mean vote (PMV) is adopted as the control objective and six variables are taken into consideration.
Abstract: This paper describes the design of a thermal comfort controller for indoor thermal environment regulation. In this controller, predicted mean vote (PMV) is adopted as the control objective and six variables are taken into consideration. Meanwhile, a kind of direct neural network (NN) control is designed, and a thermal space model for variable-air-volume (VAV) application is developed. Based on the computer simulation, it is seen that this thermal comfort controller can maintain the indoor comfort level within the desired range under both heating/cooling modes. Furthermore, by combining the energy saving strategy with the VAV application, it also shows the potential for energy saving in future

144 citations

Journal ArticleDOI
TL;DR: In this paper, a wireless, smart comfort sensing system based on the IEEE 1451 standard was developed for building automation, where the communication module, sensor node, and sink node were developed to achieve the target design goals.
Abstract: In building automation, comfort is an important aspect, and the real-time measurement of comfort is notoriously complicated. In this paper, we have developed a wireless, smart comfort sensing system. The important parameters in designing the prevalent measurement of comfort systems, such as portability, power consumption, reliability, and system cost, were considered. To achieve the target design goals, the communication module, sensor node, and sink node were developed based on the IEEE1451 standard. Electrochemical and semiconductor sensors were considered for the development of the sensor array, and the results of both technologies were compared. The sensor and sink nodes were implemented using the ATMega88 microcontroller. Microsoft Visual Studio 2013 preview was used to create the graphical user interface in C#. The sensors were calibrated after the signal processing circuit to ensure that the standard accuracy of the sensor was achieved. This paper presents detailed design solutions to problems that existed in the literature.

89 citations

Journal ArticleDOI
TL;DR: The predicted mean vote is adopted as the control objective to improve indoor comfort level by considering six comfort related variables, whilst a direct neural network controller is designed to overcome the nonlinear feature of the PMV calculation for better performance.

80 citations

Proceedings ArticleDOI
04 Dec 2009
TL;DR: The use of wireless sensor networks (WSNs) are projected to enhance energy efficiency of HVAC systems as well as provides comfortable environment to assure occupants' productivities.
Abstract: This paper reviews thermal comfort based control strategies for modern commercial buildings with heating, ventilating, and air-conditioning (HVAC) systems. In order to make HVAC systems more energy-efficient, better system operations and control algorithms for HVAC systems are demanded. Research conducted predominately within the last decade suggests that commercial building HVAC significantly influences the health, satisfaction, and productivity of the building occupants. This paper also projects the use of Wireless Sensor Networks (WSNs) to enhance energy efficiency of HVAC systems as well as provides comfortable environment to assure occupants' productivities.

64 citations

Journal ArticleDOI
TL;DR: An embedded system to design a weather monitoring system which enables the monitoring of weather parameters in an industry and contains pair of sensors like temperature, Gas and humidity and LPC1768 microcontroller (ARM9).
Abstract: Weather monitoring plays an important role in human life, so the collection of information about the temporal dynamics of weather changes is very important. In any industry during certain hazards it is very important to monitor weather. The fundamental aim of this paper is to develop an embedded system to design a weather monitoring system which enables the monitoring of weather parameters in an industry. Such a system contains pair of sensors like temperature, Gas and humidity will be monitored and LPC1768 microcontroller (ARM9). The data from the sensors are collected by the microcontroller and also microcontroller sends the sensors data in to the LABVIEW by using the Serial Communication and this module will keep the data in excel page & also we can get the SMS in the mobile with the help of GSM module. The system uses a compact circuitry built around LPC1768 (ARM9) microcontroller Programs are developed in Embedded C using the IDE Keiluvision4. JTAG is used for loading programs into Microcontroller.

48 citations