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All Journal JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Journal of Engineering and Applied Technology
Sri Sumarwati
Universiti Tun Hussein Onn Malaysia
Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering Other

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The kitchen fire prevention system using a global system for mobile Rosnee Ahad; Nur Amani Lowe Mohd Shafiq Lowe; Mohamad Zaid Mustafa; Sri Sumarwati
Journal of Engineering and Applied Technology Vol 2, No 2 (2021): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v2i2.42830

Abstract

Fire is one of the disasters that cause property loss and casualties. Based on statistical analysis, the cases related to Liquefied Petroleum Gas (LPG) fires caused by the stove, are repeated every year. There is no fire prevention system in the house, usually in the kitchen, applied as a safety and prevention measure to prevent fire. Therefore, this quantitative study aims to develop a prototype of the kitchen fire prevention system using the Global System for Mobile (GSM) modem to reduce the risk of fire in the living room caused by the kitchen appliances. The development of this project refers to the five steps in the Software Development Life Cycle (SDLC) method which is needs analysis, design, implementation, testing, and evaluation. The results show that the prototype combines two types of sensors namely MQ135, and LM35, where it works simultaneously in two conditions. Under "Reminder 1", when the MQ135 detects smoke above 100 while LM35 exceeds 40ºC, the Arduino Uno microcontroller directs the DC motor to turn off the kitchen valve automatically. Besides, GSM simultaneously sends the first warning message to the user. In the "Warning 2" state, when MQ135 detects smoke above 200 while LM35 is above 50ºC, GSM sends a second warning message. The findings of this study indicate that experts recommend improvements to use the 5V power supply from the AC / DC adapter. Overall, experts argue that the prototype design is clear and easy to understand and the prototype of the stove fire prevention system is suitable for development for safety and notification purposes.
Counter Application Trainer for Teaching Aids in Digital Electronic Course Ahmad Rizal Madar; Sri Sumarwati; Hashima Hamid; Mohd Hasril Amiruddin; Nor Athirah Musa
Jurnal Pendidikan Teknologi dan Kejuruan Vol 27, No 2 (2021): (October)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jptk.v27i2.42672

Abstract

Teaching aids play a vital role in the teaching and learning process. Teaching aids are crucial in helping students comprehend learning theory. However, most existing counter application trainers as teaching aids in digital electronics courses are developed without following the syllabus in vocational colleges and come at a high price. This study aimed to develop a counter application as teaching aids in digital electronics courses to provide low-cost teaching aids tailored to the curriculum at vocational colleges. This quantitative research applied the Life Development System (SDLC) model. This study developed a counter application trainer for teaching the Electronic and Digital Application course in vocational colleges. The findings showed that the product has been validated by experts based on the product design, suitability, and functionality. Further investigation could be conducted by looking into the trainer's safety features, such as adding a cap to the transformer's supply circuit and the on/off switch. Electric shock can be avoided with this cover.
Co-Authors Ahmad Rizal Madar Hashima Hamid Mohamad Zaid Mustafa Mohd Hasril Amiruddin Nor Athirah Musa Nur Amani Lowe Mohd Shafiq Lowe Rosnee Ahad