Prototype of Temperature Monitoring System for BTS Shelter using Android Smartphone

Abstract

One of the problems with telecommunication devices inside the BTS shelter is the fluctuated heat and voltage, which can cause damage to the device, resulting in disruption of communication between the receiver and the transmitter. This study aimed to design a prototype of temperature monitoring system for BTS shelter using Android smartphone, so that the temperature inside the BTS shelter remains controlled in accordance with the standard temperature. The prototype system uses a chamber with the size of 37.5 cm x 25 cm x 22.5 cm as a simulation of the BTS shelter. The temperature sensor used to detect the temperature inside the chamber is LM35. The cooling system employed in this prototype consists of a mini fan to circulate the cool air generated from ice cubes. The normal temperature of telecommunication device is defined to be in the range of 22 C to 36 C. The temperature inside the chamber is displayed in Arduino Bluetooth LM35, which is available on Android smartphones. If the temperature of the chamber exceeds the defined temperature, the cooling system will be active, and when the temperature of the chamber has returned to its normal state, the cooling system will switch off automatically. Based on the results of the temperature detection calibration with Elitech Digital Thermometer, the average %error was 6.9%. This indicates that the design of this prototype should be customized for larger scale.