Determination of Radio-Frequency Identification Sensor Locations for an Adapted Air-Conditioning System in a Conference Room

2011 ◽  
Vol 4 (8) ◽  
pp. 2790-2797 ◽  
Author(s):  
Da-Sheng Lee ◽  
An-Shik Yang ◽  
Ping-Hei Chen ◽  
Chin-Lung Liu ◽  
Ching-Po Lin ◽  
...  
Solar Energy ◽  
2005 ◽  
Author(s):  
B. Zheng ◽  
X. Pang ◽  
M. Liu ◽  
I. Joo

A fan airflow station measures airflow through a fan using fan speed, fan head, and the field-calibrated fan curve. This paper presents the theory and techniques of using fan airflow station in a variable volume system for building pressure control. These techniques include fan curve calibration, determination of the volumetric flow difference of the supply and return airflows, and sensor locations. The return fan speed profiles were plotted, and data was collected on building pressure after implementing the fan air flow station. The Implementation of a fan air flow station demonstrates that the return fan speed can track the supply fan speed profile as building loads change, such that building pressure is maintained within a satisfactory range.


2020 ◽  
Vol 1 (2) ◽  
pp. 37-43
Author(s):  
Okke Dwi Wibowo ◽  
Irzan Zakir ◽  
Aris Sunawar

Abstract This study aims to create an automated system to turn off and turn on the lights. This research used experimental method. This prototype uses Arduino Mega 2560 with the programming language C language simplified with software IDE 1.5.4. an input device consists of three sensor Receiver Passive Infrared (PIR), 1 sensor Microphone (Voice), 1 sensor Radio Frequency Identification (RFID), and 1 sensor Light Dependent Resistance (LDR). Hardware output consists of 5 LED lights air conditioning and Solenoid. PIR is used to detect human presence, Voice sensor is used to turn on and turn off the room lights with applause, RFID sensors are used to unlock which is connected with the solenoid, LDR sensor is used to turn on and off lights that exist outside the home. The results obtained are the PIR sensor can only read infrared moving, RFID can not be read when unobstructed metal objects (iron) and LDR sensor works based on the intensity of light around, so it can be concluded that a prototype installation of lighting smart homes to apartment studio type microcontroller based, tools and systems can work in accordance with well-designed.   Abstrak Penelitian ini bertujuan membuat sistem otomatis dalam mematikan dan menghidupkan lampu. penelitian ini menggunakan metode eksperimen.Prototipe ini menggunakan Arduino Mega 2560 dengan bahasa pemrograman yaitu bahasa C yang disederhanakan dengan software IDE 1.5.4. peralatan input terdiri dari 3 sensor Passive Infrared Receiver (PIR), 1 sensor Microphone (Suara), 1 sensor Radio Frequency Identification (RFID), dan 1 sensor Light Dependent Resistance (LDR).Peralatan output terdiri dari 5 lampu LED AC dan Solenoid. PIR digunakan untuk mendeteksi keberadaan manusia, sensor Suara digunakan untuk menghidupkan dan mematikan lampu kamar dengan tepukan tangan, sensor RFID digunakan untuk membuka kunci yang disambungkan dengan solenoid, sensor LDR digunakan untuk menghidupkan dan mematikan lampu yang ada diluar rumah. Hasil yang telah didapat adalah sensor PIR hanya dapat membaca infrared yang bergerak, RFID tidak dapat membaca bila terhalang objek logam (besi) dan sensor LDR bekerja berdasarkan intensitas cahaya disekitar,sehinggadapatdisimpulkanbahwaprototipe instalasi penerangan rumah pintar untuk apartemen tipe studio berbasis mikrokontroler, alat dan sistem dapat bekerja sesuai dengan yang dirancang. dirancang.


2013 ◽  
Vol 860-863 ◽  
pp. 1612-1615
Author(s):  
Zhou Wu ◽  
Fang Yang ◽  
Hui Fang Tian ◽  
Jing Jing Wang

The primary mission of this design is the air conditioning design of a hotel in Guangzhou city. The calculation of cooling load & heat load, division of the air conditioning system and the determination of the scheme, the design of the duct and water system, and the design of the smoke prevention and extraction system are all included. According to the related standard and considering the energy saving and comfort requirements, the air conditioning system are determined through the economic and technological comparison. Primary return air system is used for open office area and dining hall; fan-coil units with fresh air system is adopted for the guest rooms of the hotel; and the VRV system is adopted for the large conference room. The new air in restaurant rooms and the large conference room is handled by full-heat type fresh air exchanger; new air in guest room is handled by air conditioning units.


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