SISTEM PENENTUAN POSISI DALAM RUANGAN BERDASARKAN RECEIVE SIGNAL STRENGTH INDICATOR (RSSI)

Indoor positioning system which is very important for navigation inside a building or structures. In this system, the signal strength received by the receiving device from the transmitter is measured to determine the distance between the receiving device and the transmitter. This is done to provide solutions to problems that often occur indoors, such as losing your way or not knowing your exact position in a building or buildings. One type of transmitter that is often used in indoor positioning systems based on RSSI measurements is WiFi and Bluetooth. This study proposes an indoor positioning system based on RSSI measurement values using wireless transmission media including WiFi and Bluetooth technologies. The use of wireless media is used because it has advantages, such as a fairly wide signal coverage and relatively low implementation costs. The test results show that there is a difference in the distance between the reference point and the estimation point due to large variations in fading and shadowing inside the building. This can be seen at the test location which has many properties such as in the room there are partitions, vending machines and other properties, causing signal attenuation, signal deflection and signal reflection which results in a decrease in signal strength.