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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teknologi Informasi dan Komunikasi Jurnal Riset Fisika Indonesia Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics
Muhamad Agung Suhendra
Program Studi Fisika, Fakultas Sains, Universitas Mandiri
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Health Professions Materials Science & Nanotechnology Mathematics Physics

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Pengenalan Suara sebagai Pengendali Mobile Robot dengan Metode Adaptive Neuro-Fuzzy Inference System Muhamad Agung Suhendra; Timbo Faritcan Parlaungan; Tedi Sumardi
TIME in Physics Vol. 1 No. 1 (2023): February
Publisher : Universitas Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/timeinphys.2023.v1i1p43-49

Abstract

Voice recognition or speech recognition is a biometric technology that has very wide applications, one of which is for simple robot motion control. There are three stages in this research, namely data acquisition, feature extraction, and data classification. For feature extraction, the wavelet transform method is used which can analyze non-stationary and non-linear signals, while for data classification, the Adaptive Neuro-Fuzzy Inference System (Anfis) method is used. The result of data classification is 92.25% and 7.75% error. So, based on the results of the classification accuracy, the robot can be moved via voice commands and to anticipate the error value, the ultrasonic sensor feature is added to the robot as an alternative control.
Object Tracking Based on Camera Using Anfis and Fuzzy Classifier for RGB Color Iqbal Robiyana; Timbo Faritcan Parlaungan; Sarifudin; Suhendra, Muhamad Agung
TIME in Physics Vol. 1 No. 2 (2023): August
Publisher : Universitas Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/timeinphys.2023.v1i2p85-91

Abstract

Image processing technology has a wide range of applications, such as in the medical, military, surveillance, and robotics industries. Analyzing objects in images is crucial when it comes to image processing. This study focuses on image processing to track objects of red, green, and blue (RGB) colors through the utilization of a camera. There are two research schemes: image processing and data classification. The data classification method used is the fuzzy and adaptive neuro-fuzzy inference system (ANFIS). The methods of image subtracting and region properties are commonly utilized for image processing. Based on the classification data results, the fuzzy logic classification demonstrated a higher accuracy rate of 86% when compared to Anfis' 65%. This was observed when both classification models were tested using a random sample. The value of Anfis is small due to the limited size of the training data used. As a result, it is recommended to use a fuzzy classifier for object color tracking for good performance.
A Computational Study of Numerical Integration in Physics Applications Using Trapezoidal and Simpson's Methods Suhendra, Muhamad Agung; Assegaf, Sufiyah; Robiyana, Iqbal; Nurizati
TIME in Physics Vol. 2 No. 2 (2024): September
Publisher : Universitas Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/timeinphys.2024.v2i2p85-95

Abstract

This research conducts a comprehensive evaluation of the efficiency and accuracy of two widely-used numerical integration methods, the Trapezoidal Rule and Simpson's Rule, within the context of solving physics-related problems. The study focuses on four representative cases: the calculation of kinetic energy, the determination of electric field strength, the work done by an ideal gas, and the gravitational potential energy. The performance of these methods is analyzed through key metrics such as convergence behavior, error magnitude, and computational time. The findings reveal that Simpson's Rule consistently delivers higher accuracy compared to the Trapezoidal Rule, especially for functions exhibiting non-linear characteristics. This highlights Simpson's Rule as a preferred method for complex physical problems, while the Trapezoidal Rule remains effective for simpler cases requiring lower computational overhead.
An Internet of Things-Based Smart Monitoring System for Soil Moisture and Temperature Ahmad Sofyan Sulaeman; Vina Umaya Octaviani; Muhamad Agung Suhendra
TIME in Physics Vol. 4 No. 1 (2026): March
Publisher : Universitas Mandiri

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Abstract

The development of Internet of Things (IoT) technology provides significant opportunities for the application of smart farming to improve the effectiveness of monitoring plant environmental conditions. This study aims to design and build an IoT-based soil monitoring system capable of measuring soil moisture and temperature parameters in real-time. The designed system uses a soil moisture sensor, a temperature sensor, an ESP32 microcontroller, an RTC module, and a microSD. Measurement data is displayed via the Blynk application and Telegram notifications so that it can be accessed remotely. The research method is carried out through several stages, namely literature review, site selection and preparation, hardware assembly, system testing, and sensor calibration. Soil moisture and temperature data are collected periodically at certain time intervals and stored for analysis purposes. The results of the 10-hour test show that the system is able to perform well, indicated by fairly stable sensor readability after calibration and the ability to send data to the Blynk and Telegram applications in a timely manner. Based on the research results, this IoT-based soil monitoring system can help users monitor soil environmental conditions efficiently and accurately.
Co-Authors Ahmad Sofyan Sulaeman Ahmad Sofyan Sulaeman Anderias Eko Wijaya Arief Budiman Assegaf, Sufiyah Iqbal Robiyana M. Faizal Amri Muhamad Agung Suhendra Nurizati Nurizati Nurizati Nurizati Nurizati Permono Adi Putro Ramadhan, Aditia Roni Permana Suhendra, Muhamad Agung Tedi Sumardi Tedi Sumardi Tedi Sumardi Timbo Faritcan Parlaungan Siallagan Usep Tatang Suryadi Vina Umaya Octaviani