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Journal : Telecommunications, Computers, and Electricals Engineering Journal

DATA COMMUNICATION MODEL WITH TECHNOLOGY LORA MULTI-HOP: FIRE INFORMATION CASE STUDY MULTI-STOREY BUILDING Fitri, Fitri; Marpaung, Jannus; Tjahjamooniarsih, Neilcy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.84928

Abstract

LoRa is a long-range communication technology with the advantage of wide coverage but faces challenges in single-hop communication. This issue arises because the communication occurs in Non-Line of Sight (NLOS) conditions. The method used to address this is by testing a multi-hop LoRa communication system, where relays act as intermediaries between the transmitter and the gateway. The results from this study show that communication between the transmitter and relay 1 maintains a consistent RSSI of -94 dBm with an SNR ranging from 8.25 dB to 10 dB. Communication between relay 1 and relay 2 has an RSSI ranging from -83 dBm to -86 dBm and an SNR between 7.50 dB and 9.50 dB. For communication between relay 2 and relay 3, RSSI ranges from -105 dBm to -116 dBm with an SNR between 3 dB and -8 dB. Communication between relay 3 and the gateway shows an RSSI between -94 dBm and -97 dBm with an SNR between 2.00 dB and 2.50 dB. The multi-hop LoRa system successfully detected and transmitted fire data in real-time, including smoke concentrations rising to 85 ppm, with smoke and fire indicators both showing a value of 1, indicating the presence of a fire, as well as changes in temperature and humidity. The system consistently detected and transmitted fire data accurately under various conditions, with sensor data from the transmitter reaching the gateway without loss or damage.
ANALYSIS OF WI-FI NETWORK QUALITY IN TANJUNGPURA UNIVERSITY LIBRARY BUILDING Nauvaldi, Syafrizal; Pontia, F. Trias; Tjahjamooniarsih, Neilcy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 1, No 1: June 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v1i1.69799

Abstract

Tanjungpura University Library Building as a place that is often crowded with students who use Wi-Fi networks, requires good Wi-Fi signal quality to support smooth and efficient internet access to various digital resources.Wi-Fi data retrieval is inside the Tanjungpura University Library Building, Measuring RSSI (Received Signal Strength Indicator) parameters in the Tanjungpura University Library Building area using the application G-NetWi-Fi, where measurements are carried out by the walk test method using the G-NetWi-Fi application, Make data analysis and conclusions from the results of measuring RSSI (Received Signal Strength Indicator) parameters at the Tanjungpura University Library Building.Analysis of the results to be carried out is to analyze measurement data to compare measurement results with RSSI (Received Signal Strength Indicator) quality standards. Based on the measurements made, there are many measurement data that show the quality of RSSI ranging from good, normal and bad, from the Wi-Fi of Tanjungpura University Library on each route. For the RSSI value obtained by each route, the point and time will certainly vary. Measurement results This depends on the route passed by the user from the Tanjungpura University Library Wi-Fi. Because the more users, the greater the RSSI value that will be obtained.
PROGRAM MODIFICATION ON THE NODEMCU USING THE OVER THE AIR METHOD THE CASE OF AIR MONITORING EQUIPMENT Andriany, Oktaviani Laurensia; Marpaung, Jannus; Tjahjamooniarsih, Neilcy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.84927

Abstract

Internet of Things (IoT) is a technology that allows devices to connect to other devices via the Internet network. Over The Air (OTA) is a wireless delivery mechanism for transmitting data and performing updates. Modify the NodeMCU by updating it so that the sensor condition is active by uploading files containing programs wirelessly successfully carried out by the method Over The Air. Mark Packet loss 0% at the time upload file from laptop to NodeMCU when activating 1 DHT22 sensor and 2 DHT22 sensors and MQ7 can only reach a distance of 40 m in use Wi-Fi with a working frequency of 2.4 GHz. The difference in value Delay between updating just 1 sensor, namely DHT22, and 2 sensors, namely DHT22 and MQ7, at a distance of 5 m it is 0.1 ms, at a distance of 10 m it is 0.4 ms, at a distance of 20 m and 30 m it is 0.5 ms, and at a distance 40 m is 0.7 ms. Meanwhile, at a distance of 50 m - 100 m, updates using the over-the-air method can no longer be updated because the ESP8266 NodeMCU can no longer connect to the network Wi-Fi with a frequency of 2.4 GHz.
COMPARISON OF QUALITY OF SERVICE PARAMETERS FOR FOUR CELLULAR NETWORK PROVIDERS IN PUNGGUR KECIL VILLAGE Silaban, Rico Kurniawan; Putra, Leonardus Sandy Ade; Tjahjamooniarsih, Neilcy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 1, No 3: February 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v1i3.73430

Abstract

This research aims to analyze Quality of Service (QoS) parameters on cellular networks using four providers by measuring throughput, packet loss, delay and jitter parameters when conducting Video Streaming and Online Games using the Wireshark application. The research method involves direct measurement of QoS parameters in several strategic locations in Punggur Kecil village, data was taken at three different location points with a distance comparison of ±500 meters. From all the recapitulations of QoS parameter measurement results, it can be concluded that the value of each QoS parameter can vary for each package which includes the categories poor, medium, good and very good because the bandwidth received by each provider is different. The cause of high and low values of different QoS parameters, Throughput is caused by the number of packet arrivals measured during the observation process, Packet Loss is caused by the number of queues exceeding capacity, Delay is caused by low Throughput values and the number of packets sent, while the Jitter value is influenced by the Delay value. The results obtained are that the Indosat provider is the recommended provider when carrying out Video Streaming and Online Games, because the Quality of Service value produced is superior to other providers. The average values of the Throughput, Packet Loss, Delay and Jitter parameters at each location for the Indosat provider are respectively 796kbps, 2.63%, 22.6ms and 22.6ms. Provider XL is 708kbps, 1.67%, 12.6ms, and 12.6ms. Provider Telkomsel 667kbps, 0.33%. 55.9ms, and 56ms. As well as the Smartfren provider 50kbps, 0.38%, 102.6ms, and 102.7ms.