ANDROID BASED ANTENNA POSITIONING SYSTEM
To receipt the strongest possible signal, the antenna must be pointed at a precise angle in the direction of transmitter for effective wireless communication. If the movement of the antenna is controlled manually, there is a problem of aligning it at the optimum position to receive the strongest...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UTM Press
2022
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| Online Access: | http://eprints.utem.edu.my/id/eprint/27051/2/000750803202339.PDF http://eprints.utem.edu.my/id/eprint/27051/ https://journals.utm.my/jurnalteknologi/article/view/17287 |
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| Summary: | To receipt the strongest possible signal, the antenna must be pointed at a
precise angle in the direction of transmitter for effective wireless
communication. If the movement of the antenna is controlled manually,
there is a problem of aligning it at the optimum position to receive the
strongest possible signal especially in remotely located areas. To overcome
the difficulty of adjusting manually, Android Based Antenna Positioning
System is proposed to remotely control the position of antenna by using an
android phone. Two 12 V 28BYJ-48 stepper motors and ULN2003 drivers are
demonstrated as a rotator to move the antenna in azimuth and elevation
directions simultaneously. The commands provided from a web page
through android phone are sent to the motors in real time via NodeMCU V3
microcontroller. MPU6050 sensor is mounted on the antenna to determine
its position then the data collected is uploaded to Blynk application. When
the antenna is positioned at specified direction in the direction of horn
antenna (transmitter) based on the angles, speed and direction of motors’
movement, the strongest possible signal strength of antenna at specific
frequency of 2.4 GHz can be determined using spectrum analyzer. When
the antenna is positioned at X=27.52˚, Y=285.63˚, and Z=171.71˚, it has the
strongest signal strength of -36.62 dBm as well as the gain of 1.713 dB. The
stronger the signal strength of antenna, the higher the gain and the higher
the quality connection. |
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