Design of a Non-ionizing and Viable RF Based Attendant Calling Syste
Saif Hannan1, Md. Jashim Uddin2, Md. Razu Ahmed3
1Saif Hannan, Department of Electronic and Telecommunication Engineering, International Islamic University Chittagong (IIUC), Chittagong, Bangladesh.
2Md. Jashim Uddin, Department of Electronic and Telecommunication Engineering, International Islamic University Chittagong (IIUC), Chittagong, Bangladesh.
3Md. Razu Ahmed, Department of Electronic and Telecommunication Engineering, International Islamic University Chittagong (IIUC), Chittagong, Bangladesh.
Manuscript received on December 22, 2016. | Revised Manuscript received on December 24, 2016. | Manuscript published on December 25, 2016. | PP: 25-28 | Volume-4 Issue-7, December 2016. | Retrieval Number: F1137094616
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper describes to build and demonstrate an RF based Attendant Calling System with HT12E Encoder, HT12D Decoder and 434 MHz RF transmitter and RF Receiver modules which can be used to request instantaneous services where calling to attendant is required like home, offices, universities, restaurants, hospitals, aviation industry, aged care centers and so on. This Attendant Calling System can be used for a place without any line of sight (LOS) around the area. The main objective of this work is to build the transmitter and receiver circuit with less components and to create multiple channels without any programming. The operating frequency is 434 MHz (non-ionizing) which is configured for RF transmitter and RF Receiver modules. A pair of encoder and decoder has also been used in this system in which the number of encoder pins should be matched with the same number of decoder pins. Amplitude Shift Keying (ASK) modulation technique is used for transmission.
Keywords: ASK, Flight Attendant Communication, IC HT12E, IC HT12D, Nurse Call System.