Jurnal Jaringan Telekomunikasi (JJT)
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The Implementation of Dispersion Effect on Rise Time Budget and Power Link Budget on Optical Links at PT Telkom Akses Rungkut Surabaya Website Based
Get PDFAlong with the development of an increasingly rapid era, it is directly proportional to the development of technology. Optical fiber is a transmission medium used in telecommunications. The quality of information transmissions through this cable transmission medium is influenced by a number of variables, including attenuation and dispersion. The rising time budget value is determined by the dispersion, and the power link budget is determined by measuring the attenuation that influences the light's path during data transmission and causes dispersion. The results showed that the chromatic dispersion value of the measurement results on this optical link was influenced by bending, the length of the distance on the path, the splicing of optical fibers, and due to the deployment of optical fibers. The system still performs at the required levels, i.e., at a power link budget of less than -15 dBm and a rise time budget of less than 70 ps, hence the optical link results have no impact on the system's performance. The results of the implementation of the website in this study display the results of measurements and calculations that were previously carried out where the results of these measurements and calculations can be seen in a table that has been integrated between databases to store data values ??with an online map which is then displayed the value on the map or online maps on the website containing data from the measurement results and parameter calculations on optical fiber owned by PT. Telkom Access
COVID-19 Disease Diagnosis Expert System with Certainty Factor Method using iOS-Based App
Get PDFThe drop in COVID-19 patients in Indonesia from January to February 2022 made many companies prepare policies to no longer enforce work from home. At the office, we can interact and meet other people directly and it is possible to be exposed to Covid-19 that could potentially become a new wave of COVID-19. This effect poses a serious risk to all people who come into contact with COVID-19-infected individuals or are close to them. The major course of action that may be performed when someone has COVID-19 is self-isolation and tracking anyone who is around or has a health condition associated to COVID-19. We require an iOS-based COVID-19 diagnosis expert system application to track the health status of everyone around us because we are unable to know the health status of everyone. The application uses artificial intelligence technology in the form of an expert system to check health conditions. The expert system replaces the role of the expert with the certainty factor method. This app should be used every time before entering a potentially crowded place to clarify tracking by using maps feature. In addition to COVID-19, this expert system can also diagnose diseases that have the same symptoms as Typhoid Fever and Pneumonia. The results of the expert system are in the form of diagnosing the user's health condition based on the symptoms given with a confidence level of up to 0.9999952130944 or 99.99952130944% for COVID-19, 0.9676 or 96.76% for Typhoid Fever, and 97% for Pneumonia
Design and Implementation of Microstrip Array Antenna 2x4 Circular Patch with Defected Ground Structure Dumbbell Hexagonal Head 2.4 GHz Frequency for Wi-Fi Application
Get PDFWireless technology is a wireless communication technology that is currently widely used by the public to exchange information. The current information exchange is growing as communication requirements rise. The antenna design needs to be improved in order to boost bandwidth. Microstrip antennas are one kind of antenna that can be used for wireless communication. Meanwhile, to improve the bandwidth value of the antenna can be done using the Defected ground structure or DGS technique. The results of testing the microstrip array circular patch antenna with DGS at 2462 MHz frequency show that it has a maximum gain of 15.7 dBi at a frequency of 2530 MHz and a return loss value of -19.3 dB with a VSWR value of 1,242. There is a type of directional radiation pattern in the antenna of the Microstrip Array with DGS. This study's findings indicate that the Circular Array Microstrip antenna with DGS has a bandwidth of 73 MHz while the Circular Microstrip Array without DGS has a lesser bandwidth of 28 MHz
A Boarding School Santri Supervision System Design Based on Android Application to Replace the Rule of Dormitory Supervisor
Get PDFAn Islamic educational facility called a pesantren houses students, or santri, in dormitories. One of the biggest Islamic boarding schools in Jombang is called Darul 'Ulum. Students are expected to participate in early recitation activities, are forbidden from smoking, are forbidden from visiting the student rooms without the coach's permission, and are forbidden from entering the guest rooms. This research used a case study of a high school dormitory as an example. For proper monitoring of student breaches, a high number of students demand more efficient supervision. Based on these issues, a monitoring system is required that may alert the hostel supervisor to infractions in real-time, allowing them to take fast action against violators and impose sanctions in line with the seriousness of the offenses. This study uses an android application monitoring of students. According to the results of testing violations of students who smoke in the room using the MQ-2 sensor with 10 test trials, a 100% success rate is obtained in detecting cigarette smoke, and testing violations of students who are still in the room at the time of the early Koran reading with using a PIR sensor with 10 test trials, the success rate was 100% in detecting the presence of students. Both the RFID sensor test and the fingerprint sensor test resulted in delays of 1.59 seconds and 3.01 seconds, respectively, with 100% success rates
Energy Efficiency Use of Amount of Light in a Room Based on Number of People Using IoT and Image Processing
Get PDFA room with too humid conditions can cause mold and bacteria to multiply quickly. The humidity level of the room can be influenced by several factors such as the temperature level and the intensity of light entering the room. Even so, the use of lighting as a sterilizer is currently still lacking in reducing the level of humidity in the room. For this reason, it is necessary to develop technology in the form of a control system for the use of led and ultraviolet lamps in the study room by utilizing the IoT system, so that it can turn on the lights and utilize electrical energy. In this study, the Internet of Things system was applied as a control for Web cameras, Gyml 8511, DHT11, and BH1750 sensors. Data from the sensor will be sent from Arduino uno to a local server, namely raspberry pi 4 using NRF24L01. The communication system between nodes is designed with a mesh topology that can determine the fastest route in the process of sending information. The result of this research is monitoring on the web display that displays the condition of the class and the condition of the lights. From the experimental results, it is found that the mesh communication system can work well
RTSP and HTTP Protocol Analysis for Streaming Services on Manet Networks in State Polytechnic of Malang
Get PDFTo facilitate learning with video streaming, a transport protocol that can send video is needed, such as HTTP (Hyper Text Transfer Protocol) or RTSP (Real Time Streaming Protocol). Both protocols have their respective advantages and disadvantages when sent over a MANET network. One of them is that the throughput on RTSP is greater but the use of memory is more, this is inversely proportional to the RTSP protocol. In this study, the delay value in scheme 1 HTTP and RTSP protocols has an average delay of 23.225 seconds and 19.075 seconds. The throughput has an average value of 699.165 kbps and 802.656 kbps. Packet loss has an average value of 0.428% and 17.9%. For the use of transmit power nodes have an average of -33 dBm and -31.25 dBm. Memory usage has an average value of 108.46 Mb and 149.6 Mb.While in scheme 2 the delay values for HTTP and RTSP protocols are 28 seconds and 26.1 seconds on average. Throughput 1186,803 kbps and 1316,076 kbps. Packet loss has an average value of 0.0325% and 18.69%. On the use of transmit power nodes have an average of -34 dBm and -32 dBm. Memory usage has an average value of 107.525 Mb and 154.275 Mb
Analisis Kualitas Suara Dalam Komunikasi Antar IP Phone Pada Jaringan Intranet di Politeknik Negeri Malang
No full textIP Phone is a Voice over Internet Protocol (VoIP) device that can transmit voice using IP. From communication between IP Phones there are waveforms of input and output information signals, the response of voice amplitude to changes in voice frequency and delay value from time shift at the beginning of the wave period of the input and output information signal using the Transmission Test Set and Oscilloscope measuring instruments to determine the character of the sound quality in communication between IP Phones according to the parameter test results. The system test results are that the waveform of the input and output information signal at the sound frequency has a sine wave shape. However, the output waveform of IP Phone A with a frequency of 300Hz to 1100Hz and IP Phone B with a frequency of 300Hz to 1300Hz is distorted, then from the results of the Peak to Peak wave is known to have a voltage gain, that is, the greater the frequency value at the input, the smaller the value of the resulting voltage gain.IP Phone merupakan salah perangkat pada Voice over Internet Protocol (VoIP) yang dapat menyalurkan suara menggunakan IP. Berbagai tipe IP Phone bermunculan dengan harga dan fitur yang bervariasi, sehingga menimbulkan pertanyaan terkait bagaimana perbandingan kualitas suara pada IP Phone yang dihadirkan oleh berbagai tipe tersebut, mengingat kualitas suara dalam telekomunikasi sangat penting agar tidak menimbulkan kesalahfahaman saat telekomunikasi berlangsung.
Terdapat dua tipe IP Phone pada sistem yang sudah diregistrasikan dengan server sehingga dapat melakukan panggilan dengan range frekuensi 300Hz s/d 3400Hz, kemudian dari komunikasi antar IP Phone terdapat bentuk gelombang sinyal informasi input dan output, respon amplitudo suara terhadap perubahan frekuensi suara serta nilai delay dari pergeseran fasa menggunakan alat ukur Tranmission Test Set dan Oscilloscope yang digunakan untuk mengetahui karakter kualitas suara dalam komunikasi antar IP Phone sesuai hasil uji parameter.
Hasil pengujian sitem dapat disimpulkan bahwa bentuk gelombang sinyal informasi input dan output pada frekuensi suara memiliki bentuk gelombang sinus, namun gelombang output pada IP Phone tipe A frekuensi 300Hz s/d 1100Hz dan IP Phone tipe B frekuensi 300Hz s/d 1300Hz mengalami distorsi, selanjutnya dari hasil nilai Peak to Peak gelombang diketahui adanya penguatan tegangan yaitu semakin besar nilai frekuensi pada input maka akan semakin kecil nilai penguatan tegangan yang dihasilkan. Nilai respon amplitudo terhadap perubahan frekuensi suara dengan nilai amplitudo input -23.5 dBm pada kedua IP Phone memiliki penguatan daya yang semakin kecil ketika nilai frekuensi suara semakin tinggi. Nilai delay yang didapatkan dari pergeseran gelombang input dan output antar IP Phone yaitu kurang dari 150 ms
Analysis Of The Effect Filter Order Number On Noise Canceller System Using STM32F4
Get PDFCommunication plays an important role in society. This can be seen in the amount of information that is spread, such as information in the form of sound, images, and videos. But communicating is not always easy. Due to the large number of sounds emitted from different sources, other sounds will be disturbed. The interference caused by noise can distort the information signal, leading a sine wave to integrate a minor noise signal. As a result, the receiver cannot differentiate the actual information signal and the added noise. This study proposed a noise-reduction system by analyzing the effect of the number of filter orders on the noise canceler system. The information signal will be processed using the STM32F4 noise canceller system, which will then be filtered using an adaptive filter with a Finite Impulse Response (FIR) structure and the Least Mean Square (LMS) algorithm. The test results show that the best SNR value is obtained at Order 40 of 5.3671 dB at a sound duration of 14 seconds, while the best PSNR value is obtained at Order 40 of 21.3557 at a sound duration of 9 seconds, and the higher the filter order value, the smaller the MSE value
Prototype of implementation of hybrid visible light communication technology for tele controlling systems in archives warehouse
Get PDFPaper is one type of archive that is stored in the Archives Building. Maintenance of paper type archives needs to be considered to avoid mold growth and discoloration due to cigarette smoke. Therefore, a telecontrolling device is needed that can maintain a stable air humidity at 30% - 55% and a temperature of 15 °C - 22 °C. However, devices with a frequency of 2.4 GHz should not be used simultaneously in the same area because it will cause interference that can reduce performance. In this study, a temperature tele controlling system and smoke detection in the archive warehouse were made using hybrid visible light communication technology to improve data transmission performance. The system consists of 1 transmitter node connected to DHT 22, MQ 2, LED laser and WiFi network, as well as 2 receiver nodes to control the fan and water pump. The data from the receiver will be passed through the photodiode and then processed by the microcontroller. If the temperature value reaches the threshold, the receiver node will send a command so that the fan will turn on automatically, then if the smoke value reaches the threshold, the water pump will turn on automatically. The temperature and smoke values ??can be monitored in real time through the android application. The test results show that the use of hybrid visible light communication technology in the tele controlling system makes the delivery performance better
Telemonitoring Based Waste Cooking Oil Quality Detection and Sorting System
Get PDFCooking oil that is used repeatedly is called cooking oil. Due to the very high price of cooking oil, people still use used cooking oil for daily cooking, even though it is very dangerous for health and can cause a number of diseases, such as stroke, coronary heart disease, hypertension, and cancer. Parameters that are quite important to determine the quality of used cooking oil based on Indonesian quality standards of cooking oil are color parameters, pH, free fatty acid levels and turbidity. These four parameters need to be emphasized so that people can know and control the quality of used cooking oil that is suitable for reuse. In this research, a tool is made that can determine the quality of used cooking oil based on the parameters of color, pH, free fatty acid content and turbidity. The detector is equipped with a TCS3200 sensor to detect color, a pH sensor to detect pH, a conductivity sensor to detect free fatty acid levels and a turbidity sensor to detect turbidity in used cooking oil. For data transmission, the ESP32 module is used and the output data can be viewed and monitored via a 16x2 LCD and a website on a smartphone or computer. The system created has a good quality of information delivery and successful data transmission when testing delay and packet loss. The success rate of sending data from ESP32 to the Webserver is 92.4% and the average delay in sending data is 0.0025 ms