• The Journal of the Korea institute of electronic communication sciences
• /
• v.19 no.1
• /
• pp.275-282
• /
• 2024

This paper proposes an app-based feeder that performs functions such as distributing food and measuring exercise amount and a wearable collar that measures activity level to manage pet obesity in modern society where the obesity rate of pets is increasing. The wearable collar measures the pet's activity level and suggests the appropriate amount of food based on the average daily activity level. We studied an app-based pet feeding system that can provide the appropriate amount of feed per day through an app to enable obesity management even in unexpected situations.

• Proceedings of the Korea Contents Association Conference
• /
• 2014.11a
• /
• pp.385-386
• /
• 2014

최근 스마트 기기의 대중화와 더불어 스마트 기기 애플리케이션을 제작하기 위한 다양한 툴이 도입되고 있고, 이러한 툴을 다양한 교육에 활용하고자 하는 연구들이 진행되고 있다. 이에 본 논문에서는 최근 널리 활용되고 있는 앱 인벤터를 이용한 로봇교육에 대하여 알아보았다. 이를 통해 로봇 제어를 위한 로봇프로그래밍의 미래지향적인 변화의 방향과 형태에 대하여 중점적으로 논하였다.

• Journal of Digital Convergence
• /
• v.14 no.10
• /
• pp.1-8
• /
• 2016

Coding education is an effective convergence type educational tool. While solving problems and designing programs, students can enhance problem solving ability, logical reasoning ability and creative thinking. Researches on coding education are done primarily for elementary school and middle school students. However, researches on college students are lacking. Today, educating college students about coding is in dire need. Although there are efforts to promote the importance of coding education and make it requirements. People find it difficult to find ways to provide training. There is a need for researches on coding as universal education. Therefore, this research proposed educational training using app inventor based on flipped running in order to effectively promote coding education. This study conducted the survey and the personal interview to measure the effectiveness of coding education. It is hoped that, through coding education, students who do not major in coding could combined their knowledge of their major with coding to improve their problem solving ability to solve various problems based on computing knowledge and approach.

• The Journal of the Convergence on Culture Technology
• /
• v.3 no.2
• /
• pp.55-59
• /
• 2017

We are confirmed to the transfer degree of physical signal with the communication code on the wireless communication system. The physical transfer system was consisted of such as ECG, PPG and Bluetooth part that received signal. Communication method was take the international standard level of IEEE802.15.1 forms, the frequency transition was needed the bandwidth of communication for transfer signal with the band-communication method. The program was expressed to receive with wireless communication condition that was consisted of such as the serial chart, processing and app inventor. Their signal was identified to transfer certainly the corrected signal. Therefore, signal processing for coding by the real-time graphing and using processing by a standard capacity of serial-chart graphing that will be possible to progress the improvement effectiveness of wireless communication system.

• Journal of Korea Game Society
• /
• v.18 no.3
• /
• pp.49-60
• /
• 2018

In many countries, recently computer programming eduction has become mandatory for K-12 students. Generally since programming is difficult for K-12 students to learn, a lot of previous works have been published in which the study motivation and class satisfaction increased when game programming was applied to programming classes. We investigated a research in which we used game programming in the programming classes for middle-school students, and analyzed educational effects. In this paper, we described the specification of the games and our class model that were applied in the research. Also, we analyzed changes made to computation thinking abilities, creative thinking abilities, and perceived support for programming after the programming classes. As a result, it was found that those abilities and the perceived support were increased. Additionally, we applied Havruta learning, a kind of paired learning, in the programming class, and have known that it increased the educational outcome with respect to the traditional method.

• PNF and Movement
• /
• v.21 no.1
• /
• pp.129-137
• /
• 2023

Purpose: The physical therapy diagnosis process requires high-level background knowledge, the ability to obtain added information from patients, accurate examination skills, and a framework for transforming thoughts into a diagnostic decision. Thus, the physical therapy diagnostic process is highly complicated and difficult work. To function as autonomous professionals, physical therapists must develop effective clinical diagnosis skills. As such, mobile application aids can help with accurate and scientific diagnoses. Therefore, this study aims to develop and evaluate the usability of a mobile application for physical therapy diagnoses. Methods: In this study, a diagnostic application was developed using App Inventor, the development environment was the Chrome web browser for Windows 10, and the mobile application was run on a Google Pixel 5. The developed application was evaluated for usability by 20 physical therapists with more than 5 years of clinical experience in the musculoskeletal physical therapy field, and a usability evaluation was conducted using a 5-point Likert scale for accuracy, convenience, satisfaction, and usability. The collected Likert scores were converted into percentages and analyzed as descriptive statistics. Results: The graphical user interface consisted of an initial screen with program guidance, 18 screens presenting the algorithm, and 12 screens presenting the estimated diagnosis based on the algorithm. As such, the usability evaluation of the developed application was as follows: accuracy 100%, convenience 90%, satisfaction 91%, and usability 88%. Conclusion: The newly developed mobile application for physical therapeutic diagnoses has a high accuracy, and it will aid in building an easy and reliable physical therapy diagnosis system.

• Journal of Advanced Navigation Technology
• /
• v.21 no.1
• /
• pp.72-77
• /
• 2017

In recent years, internet of things (IoT) technology has developed rapidly and has been applied in many fields. IoT devices collect and analyze information in various environments and provide useful information to users. Due to the recent increase in IoT devices, many open source platforms based on hardware and software that are cheap and easy to use have been developed and provided. In this paper, we have studied the IoT system based on Arduino which can communicate Bluetooth wireless data with smart phone in real time. And we have developed a wireless system control app based on App Invertor 2 for communication with Android smart phone. Also, we propose an IoT system based on Arduino which can control the devices and implement the function of connectivity between devices.

• Journal of Bio-Environment Control
• /
• v.31 no.4
• /
• pp.452-459
• /
• 2022

One of the important factors among the smart farm factors is environmental measurement. This study tried to design an environmental measurement monitoring system through Bluetooth wireless communication with LoRa using the open source programs Arduino, App Inventor, and Node Red. This system consists of Arduino, LoRa shield, temperature and humidity sensor (SHT10), and carbon dioxide sensor (K30). The environmental measurement system is configured as a system that allows the sensor to collect environmental data and transmit it to the user through wireless communication to conveniently monitor the farm environment. As libraries used in the Arduino program, LoRa.h, Sensirion.h, LiquidCrystal_I2C.h and K30_I2C.h were used. When receiving environmental data from the sensor at regular intervals, coding using average value was used for data stabilization. An Android-based app was developed using Node Red and App Inventor program as the user interface. It can be seen that the environmental data for the sensor is well collected with the screen output to the serial screen of Arduino, the screen of the smartphone, and the user interface of Node Red. Through these open source-based platforms and programs will be applied to various agricultural applications.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.19 no.1
• /
• pp.157-164
• /
• 2024

In this paper, we would like to develop a system that selects the drink you want with an application made with an app inventory for the person who manufactures the drink and manufactures the drink. After combining the drinks to be mixed with the dispenser, the actuator was controlled to accurately move the ball screw to the location of the dispenser by controlling the step motor through Arduino. According to the actuator movement control and the number of times the dispenser is pressed, the amount of drinks to be mixed is extracted in proportion to each other. Finally, we establish a system to replace the labor force of cafes and further suggest directions that the system can be used everywhere.

• Journal of Korea Multimedia Society
• /
• v.17 no.8
• /
• pp.1020-1024
• /
• 2014

The environment information such as dust, temperature, humidity, illumination and gas are very important in daily life. We implemented multi-sensor system which made for measuring an environment by using Arduino, ZigBee, and Appinventor. We also designed a packet for transmitting environment data. The data are sent to the server via ZigBee and then it communicates to a smart phone via WI-Fi. In this study, we added divers sensors, designed a protocol which made for transfer several kinds of data and improve mobility for real time monitoring by using smart phones. The system was worked well and the data was transmitted correctly to the smart phone.