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All Journal MEKTEK Foristek Jurnal MEKANIKAL AKSIOMA Jurnal Pendidikan Matematika Telematika : Jurnal Informatika dan Teknologi Informasi Jurnal Informatika dan Teknik Elektro Terapan MEKTRIK JOURNAL OF APPLIED INFORMATICS AND COMPUTING Jurnal Sistem Cerdas JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) CCIT (Creative Communication and Innovative Technology) Journal ScientiCO : Computer Science and Informatics Journal Aksioma Advance Sustainable Science, Engineering and Technology (ASSET) The Indonesian Journal of Computer Science
Yuri Yudhaswana Joefrie
Universitas Tadulako
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Other

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Journal : JOURNAL OF APPLIED INFORMATICS AND COMPUTING

 1 
Optimization of Urban Waste Collection Routes Using the Held-Karp Algorithm in a Web and Mobile-Based System Arsita, Tiara Juli; Lapatta, Nouval Trezandy; Joefri, Yuri Yudhaswana; Angreni, Dwi Shinta; Pratama, Septiano Anggun
Journal of Applied Informatics and Computing Vol. 9 No. 1 (2025): February 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i1.8832

Abstract

In 2023, the Environmental Agency of Palu City recorded a total waste production of 97,492 tons, of which 10.4% was plastic waste. The Palu City Government operates a fleet of garbage trucks on a predetermined collection schedule. However, garbage bins frequently overflow before their scheduled pickup, resulting in extended waste accumulation and inefficiency. This study proposes a web and mobile-based system to enhance waste management by integrating bin condition reporting and shortest route calculation for collecting full bins. The Held-Karp algorithm is utilized to address the Travelling Salesman Problem (TSP) for determining optimal collection routes. The system was developed using Golang, Flutter, ReactJS, and a MySQL database. API functionality was validated using Postman, and overall system functionality was tested using the black-box method. A case study involving 8 test points (1 starting point, 10 waste collection points, and 1 endpoint) demonstrated that the proposed system reduces travel time by up to 21.74%, costs by 22.29%, fuel consumption by 21.16%, and distance traveled by 21.16% compared to conventional methods. These results highlight the potential of the system to significantly optimize waste collection operations and support sustainable urban waste management practices.
Automatic Fish Feeding and Temperature Control System for Aquariums Based on Internet of Things (IoT) Widyati, Made Ayu Sri; Anshori, Yusuf; Lamasitudju, Chairunnisa Ar.; Laila, Rahmah; Joefrie, Yuri Yudhaswana
Journal of Applied Informatics and Computing Vol. 9 No. 1 (2025): February 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i1.8847

Abstract

Keeping fish in aquariums has become one of the people's hobbies. An important factor in fish maintenance is the process of feeding and controlling the temperature of the aquarium. However, with various activities, fish care is often not carried out properly. This study develops an automatic system for feeding and controlling the temperature of the aquarium with goldfish as the test object. This study designs an automatic system to control the temperature and feeding in the aquarium using hardware such as a DS18B20 temperature sensor, load cell, and ultrasonic sensor. This system is controlled by ESP32 for reading sensor data and Arduino Uno for controlling the relay, cooling system, heater, and servo motor. ESP32 reads sensor data and sends it via MQTT to Node-red. Based on this data, the system regulates the temperature by activating the cooler (peltier and water pump) if the temperature is >28℃ and turning off the cooler when the temperature is <26℃. The heater is active if the temperature is <24℃ and stops when the temperature reaches 26℃. Feeding is carried out according to schedule, with servo 1 dropping feed into the load cell until the weight reaches the target weight. After that, servo 2 moves the feed into the aquarium. If the weight has not reached the target, servo 1 continues to be active. Based on the test, the average percentage of error in the temperature sensor is 0,08%, the weight sensor is 1.10%, and the ultrasonic sensor is 1.61%. This system successfully performs four times a day feeding and controls the temperature within the optimal range for goldfish, which is 24-28℃. The test results show that this system functions well and is in accordance with the research objectives.
Co-Authors Abdul Mahatir Najar Alda Nur Pradinda Amriana Amriana Anita Ahmad Kasim Arsita, Tiara Juli Chairunnisa Ar. Lamasitudju Chairunnisa Lamasitudju Deny Wiria Nugraha Dodu, Erwin Dwi Shinta Angreni Dwimanhendra, Muhammad Rifaldi Hajra Rasmita Ngemba Hanama, Ikhsan Wahyudin Hasanuddin Hasanuddin Ihwan, Abib Raifmuaffah Inten Sakti Pratiwi Junus Widjaja Lamasitudju, Chairunnisa Liza Amalia Meidji, Farah Nabila Mohammad Yazdi Pusadan Muh Alif Alghifari Muhammad Aristo Indrajaya Muhammad Yazdi Nadyanti, Nadyanti Ningsih, Alief Surya Nouval Trezandy Lapatta Pratama, Septiano Anggun Prihastomo, Enggar Dwi Protus Peter Kalatiku Protus Pieter Kalatiku Qofifa, Sitti Nurlaili Rahmah Laila Rini Septiani Rizka Ardiansyah Rumampuk, Viola Gracella Ryfial Azhar, Ryfial Septiano Anggun Pratama Syahrullah Syahrullah Syaiful Hendra Wahyu Setiawan Widyati, Made Ayu Sri Wirdayanti Yusuf Anshori Zulkifli Zulkifli