Android-based Smartphone Research Articles

Prototype, method, and experiment for evaluating usability of smart home user interfaces

Despite the widespread adoption of smart devices and home automation systems, users still face usability challenges. Additionally, evaluating the usability of smart home systems is not straightforward. Our paper focuses on building a Smart Home Prototype, selecting, and evaluating software User Interfaces (UI). We have chosen the smart home heating system as the basis, but the principles are applicable to other applications. To discuss smart home UIs, it is necessary to understand the components, implementation scenarios, configuration, and operation of smart home systems. Therefore, we devote considerable attention to these topics in the paper. Our smart home system utilizes a Raspberry Pi computer, temperature sensors, servo drives, an Android-based smartphone, and other necessary hardware. We installed and configured open-source software and third-party services on the experimental setup. We provided a brief description of each selected software. We used the Home Assistant operating system, its mobile application, voice assistant Alice, and Telegram chatbot. In our study, we described a methodology for evaluating user interfaces in smart homes and conducted an experiment to assess their usability. The experiment results indicated which interface was more user-friendly and identified the drawbacks of each. In conclusion, we discuss UI features that can improve usability and available options for building a smart home based on capabilities.

An Intelligent Transport System Using Vehicular Network for Smart Cities

Aims and background: The integration of communication tools has allowed for effective decision-making in smart cities and Internet-of-Things (IoT). One major issue that people who commute to cities everyday encounter is traffic congestion. Thanks to the progress and backing of ICTs, transportation solutions have been designed and implemented, leading to the development of ITSs and the provision of numerous innovative services. Objectives and Methods: These services include ones that guarantee safety, provide drivers with useful information, enable greater street movement, and avoid congestion, among many others. In industrialized nations, traffic data is collected by specialized sensors that can anticipate future patterns. Commuters are kept informed of any traffic updates through the Internet. When there is little or no physical infrastructure and Internet connection, these methods become unworkable. Internet access is still a problem in rural regions, and there are no roadside units in underdeveloped nations. This article presents an architecture for smart cities' intelligent vehicular networks that can impromptu accept data from nearby vehicles in real time and use it to choose routes. As embedded devices in vehicles, we utilized Android-based smartphones with Wi-Fi Direct capabilities. To set up our smart transportation system, we utilized a vehicular ad hoc network. Results: Data was collected and processed using separate methods between two major cities in a developing nation. Resource utilization, transmission delay, packet loss, and total trip time were measured against several fixed- and dynamic-route-selection algorithms to assess the framework's performance. Conclusions: When equated to a conventional fixed-route-selection procedure, our results reveal a 33.3% reduction in trip times.

College Club Industry Android App

The revolution of industry 4.0 becomes a new challenge to prepare the students to have high computing technology ability. This demand changes the conventional learning method using more manual tools into the one using digital-based computing ware. Interactive multimedia is a type of media operated using hand-held and mobile computing ware, android-based smartphone. Interactive multimedia can display information in text formats. Information can be presented real time anytime and anywhere in real environment setting. Interactive multimedia potentially makes the learning process running effectively. In addition, interactive multimedia potentially

Pengembangan Media Pembelajaran Matematika Berbasis Android Menggunakan Smart Apps Creator pada Materi Perbandingan untuk Siswa Kelas VII UPTD SMP Negeri 5 Kupang

The development of the use of Android-based smartphones among the people of Indonesia is used in various fields, including the field of education. One software that can be used to implement Android-based learning is smart apps creator (SAC). Therefore, this study aims to develop android application-based mathematics learning media on class VII UPTD SMP N 5 Kupang comparison material that is valid, practical, and effective. The method used in this study is the Research and Development (R&D) method using the ADDIE model which consists of 5 stages, namely analysis, design, development, implementation, and evaluation. The data collection techniques used in this study were interviews, questionnaires, and learning outcomes tests. Data analysis techniques in this study are qualitative data analysis and quantitative data analysis. The results showed that the application met the eligibility criteria that were valid, practical, and effective in the comparison material. The average total validity of learning media by 3 media and material experts is 4.25 so that android application-based mathematics learning media is included in the valid category, subject teacher responses with an average response result of 4.67, responses from small-scale students are 4.7 and large-scale student responses are 4.45 so that android application-based mathematics learning media is included in the practical category, and the percentage of small-scale learning completeness results obtained 80% included in the effective category and large-scale learning completeness results 88.88% so that mathematics learning media based on android applications that have been developed are included in the very effective category.

Location based Notification System

In recent years, mainly advertisements and vouchers are used for providing discounts, text messages and posters were mainly used till date but to advertise on a mobile device is need of the current scenario. Vendors must be allowed to publish and edit an advertisement to users according to the interest of the customer. This technique has low cost for digital advertisement and has a pervasive system for advertising in large commercial malls. If information is not retrieved according to their choice in a short period of time.The interest may be lost in order to purchase products. They need to find more information and location without taking much effort. Traditional paper based reminders are still useful, but they cannot be organized efficiently. Electronic reminders based on the calendar in Cell phones are more efficient and gaining popularity, but such reminders are mostly triggered by time. In many situations, tasks are only meaningful to be performed at a specific location, so it would be useful if reminders for those tasks can be triggered only when the person to be reminded is physically near or located at that location. Therefore, in this research, we develop a location-based task management for Android-based smart phones and tablets.

Pengembangan Aplikasi Pengenalan Pahlawan Revolusi Indonesia Berbasis Android

The development of Android applications is currently growing rapidly, which is the background for this research, there are various free and paid Android applications available on Google Play that we can install on Android-based smartphones according to our needs. The increasing development of Android applications nowadays opens up very promising opportunities for anyone who wants to become an Android application developer. The aim of this research is to make it easier for the public to get to know the heroes of the Indonesian Revolution, as well as to attract user interest who want to know and learn about the Heroes of the Indonesian Revolution and at the same time remind the public about the struggles carried out by the Heroes of the Indonesian Revolution. The method used in the research is the research & development method (R&D Method). The R & D method is a research method used to produce certain products and test the effectiveness of these products. The result of the research is the development of an Android-based application for recognizing the heroes of the Indonesian Revolution.

Implementation of Convolutional Neural Network (CNN) Method for Fish Processed Cuisine Image Identification Application with Google Maps Features

The rapid advancement of science and technology encourages dynamic transformation in various sectors, especially in the field of information and communication technology (ICT), especially with the existence of Android-based smartphones. This advancement revolutionizes the way we access information, especially about various processed fish dishes in Indonesia. However, despite the plethora of culinary offerings, travelers often find it difficult to discover traditional dishes through social media platforms. To bridge this gap, a new app that utilizes artificial neural networks has been developed. The app allows users to photograph and upload images of processed fish dishes to recognize and provide detailed descriptions and recipes. In addition, integrating Google Maps makes it easy for users to find nearby places that serve these dishes. Testing the app with a dataset consisting of 1577 images of six types of processed fish dishes yielded promising results, with accuracy reaching 97.57% over 120 epochs. This innovation not only preserves cultural heritage but also enhances the culinary experience for locals and tourists.

Pemilihan Ketua Rukun Tetangga dan Rukun Warga Berbasis Android di Dukuh Celeban Yogyakarta

The impact of the spread of the Covid-19 virus, which is increasing every day, has resulted in restrictions on community activities in all fields including the election of the head of the affected neighbourhood’s unit (RT) and community unit (RW). citizens and a direct voting process are carried out. With the COVID-19 pandemic, the election of RT and RW heads cannot be carried out properly, therefore the author intends to create and implementation an information system for the election of RT and RW heads that can be used by all residents and can be carried out from the homes of each resident without having to conduct community meetings as usual. The system to be built is mobile-based so that it can be run through applications on Android-based smartphones. The choice of a mobile-based information system (Android) is because almost all citizens have an Android-based smartphone, besides that, an Android-based smartphone is also easy to operate.

A Systematic Review of Self-Regulated Learning Approach through Digital Learning Media in Enhancing Students' EFL Speaking Competences

This study explores the substantial role of digital learning media in ensuring continuous learning regardless of location or circumstances. With many digital platforms available for teaching and learning, this paper investigates the benefits and characteristics associated with the utilization of digital learning media. Employing self-regulated learning approaches, the study aims to enhance students’ English as a Foreign Language (EFL) competencies. Conducting a systematic literature review covering the period from 2018 to 2023, the research follows the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. Examining 25 articles from reputable databases (i.e., Scopus, Science Direct), the study identifies a positive correlation between the use of digital learning media, including Learning Management Systems (LMS) and Android-based smartphone applications, and improved student achievements. The findings emphasize the significance of digital tools that meet specific qualifications: being beneficial, organizing indicators effectively, and featuring robust and interactive visualizations. This research offers valuable insights for educators, policymakers, and researchers to enhance technology-based learning experiences in EFL education.

LOCATION BASED TASK MANAGEMENT SYSTEM

In the last few years, advertisements and vouchers have mainly been used to provide discounts. Text messages and posters have been used till now but advertising on mobile devices is a necessity of the present times. Vendors need to be able to publish and modify the advertisement to the users according to their interest. This method has low cost of digital advertisement and pervasive system for advertisement in big commercial malls. It is used to publish advertisement on the mobile phones ofthe customers and to find the desired place of the vendors. Customers are people who want to get information in a short amount of time. For example, they want to know the Location of the vendor, their discounts and description of the products. If they don't get the information according to their preference in a short time, they may lose interest in buying the products. Therefore, they need to get more information and the location without much effort. The information will be extracted from the content of social networks and will be used to predict the ad categories that interest a specific user. The same framework will be used for location based task management to filter ads based on the location of the user and the shop. Paper-based reminders are still very useful, but it is difficult to organize them effectively. Electronic reminders, on the other hand, are becoming more and more popular on cell phones. However, these reminders are mainly triggered by the user’s time. In many cases, tasks only need to be done at a particular location, and it would be helpful if reminders for these tasks could only be triggered when the user is physically around or near that location. This is why we have developed a location based task management for android-based smartphones and tablets in this research. Key Words: Location-based reminder, Task manager, Mobile application, Android.

The Influence of Prices and Advertising on Decisions Purchase Oppo Smartphones at Imelda Teluk Phones in South Nias

Android-based smartphones are a very effective and efficient digital technology communication tool that is really needed by the public in carrying out their mobility and activities in the digital economy. The Oppo smartphone is already widely known among the public. This research aims to analyze the influence of price and advertising on purchasing decisions for Oppo smartphone products at Imelda Mobile Telukdalam South Nias. This research is quantitative descriptive research using manual data obtained incidentally (accidental slice) and analyzed using validity test methods, reliability tests, classical assumption tests, multiple linear regression analysis, and hypothesis analysis. The results of the research show that price has no effect on purchasing decisions with a value of tcount<ttable or 0.978<1.980, while advertising has a positive and significant effect on purchasing decisions as indicated by a value of tcount>ttable or 2.173>1.980. Simultaneously price and advertising have a significant positive influence on purchasing decisions. with a value of Fcount> Ftable or 4.506> 3.07. Thus, many people make purchases of Oppo smartphone products.

Aplikasi Augmented Reality Pengenalan Hewan Berdasarkan Jenis Pangan Berbasis Android

Augmented Reality applications have become one of the technologies that has developed rapidly in the last few decades. This technology will later be used to help solve challenges in the education sector. Common problems that occur in the world of education usually lie in learning methods. Teachers usually only use classical teaching aids and do not provide opportunities for students to explore further with existing media. Therefore, an Augmented Reality based application is used. Augmented Reality is a technology that combines digital information such as images, videos or 3D models with the user's environment in real time. Application design as Android-based learning media. This Augmented Reality application will later help students' learning process. The application runs on Android-based smartphones. The contents of this application will be a 3D model, detailed information about the animal. As well as audio that will explain the details of the animal. It is hoped that this application can facilitate students to learn about animals, especially based on types of food. In order to determine the effectiveness of the application being developed, a pretest and posttest were carried out. The results show that at the posttest students had better abilities compared to before

Aplikasi Pengenalan Anatomi Manusia Berbasis Augmented Reality

Augmented Reality (AR) is an attempt to combine the real world and the virtual world in real-time. A real object that serves as a marker is used for positioning virtual objects that have been identified by the camera. Augmented Reality is widely used in various fields, one of which is the field of education. In the field of education Augmented Reality is used as an interactive learning media to be more creative, interesting and innovative. This Augmented Reality technology can be applied in the human anatomy learning system. The use of Augmented Reality technology is expected to display objects in the form of 3D virtual human body parts in a marker book as props. Markers detected by an android-based smartphone camera will display anatomical objects that will be used by the teacher, so that students can observe how the human anatomy looks in realtime.

Advancing landmine detection: The metal detector robot

The metal detector robot is a novel method for identifying metal objects and detecting landmines. Although traditional procedures are prone to unintentional detonation, safer solutions must be developed. This paper presents a solution in the form of a robot with a metal detector that uses coil induction to detect metal precisely and is operated by an Android-based smartphone. Essential components include motors with DC that are managed by an Arduino UNO microcontroller and an LCD interface that shows measured metal frequencies in real time. When metal is discovered, the robot immediately provides feedback by making a loud buzzing sound and displaying the detected metal frequency on the LCD interface. The metal detector robot's effectiveness has been thoroughly tested, and results show that it can be controlled remotely from an Android smartphone up to 15 meters away. The detector head's detection radius reaches up to 88 millimeters, confirming accuracy in locating metal items, even potentially dangerous landmines. The metal detector robot emphasizes increased safety and accuracy while providing a viable solution to the problems associated with landmine detection. It is useful for community safety and landmine clearing efforts in conflict-affected areas because of its remote controllability and integration of cutting-edge technologies.

Visit planner: A personalized mobile trip design application based on a hybrid recommendation model

The paper presents Visit Planner (ViP), a mobile application prototype that provides a solution to the challenging tourist trip design problem. ViP follows a holistic approach offering personalized recommendations for Points of Interest (POIs) based on preferences either explicitly collected by the application, or inferred by the users? ongoing interaction with the system. ViP proposes to the final user, a trajectory of POIs calculated using an Expectation Maximization method that maximizes user satisfaction taking into consideration a variety of time and spatial constraints for both users and POIs. Additionally, POIs are divided into categories, so that a certain number of POIs from each category to be included in the final itinerary. The application is implemented as a user-interactive system that allows the flexibility for easy content adaptation and facilitates management of content and services by the user. The prototype has been implemented for Android-based smartphones, on an open application environment, using standard communication protocols and open database technology. Currently, it is applied to the city of Agios Nikolaos in Crete, and is available for download from Google play.

The Waste Sorting Education Media: An Innovation with Android-based Game

Knowledge of waste classification and segregation is very important considering that currently Indonesia is one of the largest plastic waste contributor countries in the world. Games that can be modified for educational purposes are educational games, especially in waste sorting. This study aims to develop an android-based waste sorting educational game (with the types of waste that appear in the school environment), as well as how to sort this android-based waste. Educational games are very appropriate as educational or learning media. Researchers use a research and development design or Research and Development Design (R&D) with the Borg and Gall model. In this initial study, it was carried out up to the small-scale user trial stage. The collection of teacher response data as a media user is carried out using an application usability instrument, namely the System Usability Scale (SUS). The research was conducted in 4 elementary schools. The educational game Sorting Trash was developed using Construct 3, Canva and Pixlr. This game is operated with an Android-based smart phone so that it is easily accessible to the wider community. The results of the validity test by media experts and material experts show that the results of the Android-based Sort Waste educational game are very valid, so they are very suitable for use as educational media for elementary school students.

A development of high sensitivity magnetic sensor based on giant magnetoresistance with simple implementation on smartphone

In this paper, the magnetic field-based sensor that can connect with smartphones through Bluetooth connectivity was developed. The design of this high sensitivity magnetic sensor system used Giant Magnetoresistance (GMR) sensors in the form of SOIC8 with AA002-02 series from NVE Corp. The results obtained from the measurements show that the sensor is able to work well when connected to an Android-based smartphone. Measurements were carried out by placing a magnet with a magnetic field strength of 0.4 T in the direction of the sensitivity plane of the GMR sensor. The result showed that the closer the magnet distance relative to the GMR sensor the more voltage signal output from the sensor. Since this developed method is simple but effective for detecting position of magnetic object, the further development of this method will be benefit for many applications.

Tourism Travel Agenda Planning Application Bengkulu City Based On Android

Most of the tourists visiting the city of Bengkulu. constrained by a lack of access to information sources. Meanwhile, tourists also really need valid information about the place to be visited which results in a lot of wasted time searching for information related to the location of the object they want to visit. Based on this background, the researcher created an application called the Adroid-Based Tourism Travel Agenda Planning Application, which aims to assist tourists in determining destinations and assist tourists in arranging tourism itinerary scheduling. In conducting this research, the type of research used is qualitative research with a scientific approach and the system design method used is waterfall and for calculating the results of the questionnaire using quantitative methods. This application runs on Android-based smartphones. This application includes two contents namely destinations and agendas. Destination content has five features, namely, lodging, tours, souvenirs, and orders. The development of this application uses the Android Studio software. In modeling this application uses the UML method in the form of uses case digrams and is tested using the blackbox testing method. The results of testing this application conclude that the expected functions are all successful as expected. The conclusion is that the Bengkulu City Tourism Itinerary Planning Application can make it easier for tourists to find destination locations in Bengkulu City and help tourists plan travel agenda schedules with some of the information available on the application.

Abstract A059: The role of conversational chatbots in enhancing shared decision making for African American men with early stage prostate cancer

Abstract Introduction : Enhancing shared decision making (SDM) for African American (AA) men with early stage prostate cancer using conversational chatbots (CCs) aims to improve communication, provide information, and empower them in their treatment decision making process. SDM is a collaborative approach that involves patients and healthcare providers working together based on medical evidence and patient preferences. However, AA men face significant disparities in prostate cancer (PCa) outcomes, including higher incidence and mortality rates compared to other racial/ethnic groups in the United States. Limited access to recommended PCa information and inadequate information during SDM conversations contribute to the challenges AA men face when making treatment decisions. The purpose of this study was to develop a conversational chatbot (CC) to provide PCa information in real time thus, enhancing SDM for AA men with PCa. Methods: The Ottawa Decision Support Framework and the International Patient Decision Aids Standards provided guidance and framework for the development of the CC. Our participatory research approach involved a diverse Community-Based Participatory Research Advisory Board (CBPRAB) consisting of twelve members. The CBPRAB included AA PCa survivors, AA men, caregivers, advocates, community leaders, and cancer care providers. Through training in research methods and focus group facilitation, CBPRAB members actively contributed their valuable insights, ensuring a collaborative and inclusive research process. Results: Five stakeholder focus groups (n = 44) comprising AA men, PCa survivors, spouses, healthcare professionals, and advocates provided valuable input for the development of the CC. In total, 819 questions were generated through interviews conducted during the focus groups. These questions were either inferred from the discussions or explicitly provided by the participants. The answers to these questions were developed from evidence based sources, such as the American Cancer Society and National Comprehensive Cancer Network Guidelines. An Android-based smartphone application that allows users to submit questions via speech was created. The application matches the user's question within the data set of 819 questions and provides answers in both voice and text formats. Conclusion : The Android-based smartphone application was alpha tested on four stakeholder focus groups (n=35). The CC developed in the smartphone application demonstrated the capacity to provide real time responses to user questions sourced from an 819-question database derived from our stakeholder focus groups. By offering evidence based information and directing users to additional resources if the question is not in the database, the CC can improve accessibility to medical information, thus enhancing the SDM process regarding early stage prostate cancer. Citation Format: Angela D. Adams. The role of conversational chatbots in enhancing shared decision making for African American men with early stage prostate cancer [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr A059.

Usability assessment using m-Health app usability questionnaire on the iPosyandu application in Central Sulawesi

The iPosyandu mobile application is one of the android-based smartphone applications that contains information about the growth and development of babies/toddlers and about pregnancy as an effort to reduce maternal mortality rate (MMR). This study's objective is to evaluate the usability of the iPosyandu mobile application and offer modifications to increase its reusability. The study was conducted on 88 pregnant women at the Lere Health Center and Kinovaro Health Center which were divided into 44 people from signaling areas and 44 people from signal-difficult areas using mixed method research with an explanatory sequential design. The m-Health app usability questionnaire (MAUQ) is employed in the quantitative stage, whereas the focus group discussions (FGD) approach is used in the qualitative stage. The calculation of the MAUQ score in this study showed that each statement item contained in 3 variables or aspects in the MAUQ questionnaire got a good score with a total average scale of 6.26 (89.41%) in the signaled area and 6.29 (89.81%) in the signal-difficult area where the score was >4. There are still some barriers to using the program, thus enhancements must be done to increase user comfort.