Aries Pratiarso, Aries
Institut Teknologi Sepuluh November (ITS) Surabaya

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An Adaptive Connectivity-based Centroid Algorithm for Node Positioning in Wireless Sensor Networks Pratiarso, Aries; Kristalina, Prima
EMITTER International Journal of Engineering Technology Vol 3, No 1 (2015)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In wireless sensor network applications, the position of nodes is randomly distributed following the contour of the observation area. A simple solution without any measurement tools is provided by range-free method. However, this method yields the coarse estimating position of the nodes. In this paper, we propose Adaptive Connectivity-based (ACC) algorithm. This algorithm is a combination of Centroid as range-free based algorithm, and hop-based connectivity algorithm. Nodes have a possibility to estimate their own position based on the connectivity level between them and their reference nodes. Each node divides its communication range into several regions where each of them has a certain weight depends on the received signal strength. The weighted value is used to obtain the estimated position of nodes. Simulation result shows that the proposed algorithm has up to 3 meter error of estimated position on 100x100 square meter observation area, and up to 3 hop counts for 80 meters communication range. The proposed algorithm performs an average error positioning up to 10 meters better than Weighted Centroid algorithm.Keywords: adaptive, connectivity, centroid, range-free.
An Adaptive Connectivity-based Centroid Algorithm for Node Positioning in Wireless Sensor Networks Pratiarso, Aries; Kristalina, Prima
EMITTER International Journal of Engineering Technology Vol 3, No 1 (2015)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v3i1.39

Abstract

In wireless sensor network applications, the position of nodes is randomly distributed following the contour of the observation area. A simple solution without any measurement tools is provided by range-free method. However, this method yields the coarse estimating position of the nodes. In this paper, we propose Adaptive Connectivity-based (ACC) algorithm. This algorithm is a combination of Centroid as range-free based algorithm, and hop-based connectivity algorithm. Nodes have a possibility to estimate their own position based on the connectivity level between them and their reference nodes. Each node divides its communication range into several regions where each of them has a certain weight depends on the received signal strength. The weighted value is used to obtain the estimated position of nodes. Simulation result shows that the proposed algorithm has up to 3 meter error of estimated position on 100x100 square meter observation area, and up to 3 hop counts for 80 meters communication range. The proposed algorithm performs an average error positioning up to 10 meters better than Weighted Centroid algorithm.Keywords: adaptive, connectivity, centroid, range-free.
Pemanfaatan Alat Monitoring Kadar Air Pada Gabah untuk Peningkatkan Kualitas Panen Zainudin, Ahmad; Santoso, Tribudi; Wijayanti, Ari; Pratiarso, Aries; Sudarsono, Amang; Mahmudah, Haniah; Siswandari, Nur Adi; Budikarso, Anang; Syahroni, Nanang; Wahyuningrat S., Hari; Siswanto, Anang; Juliansyah, Farel; Farhan, Donny; Susanti, Tri
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 4, No 2 (2020)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/jd.v4i2.457

Abstract

Indonesia merupakan salah satu negara  agraris dimana sebagian besar penghasilan masyarakat Indonesia yaitu dari pertanian. Untuk mempertahan harga jual hasil pertanian, maka diperlukan perhatian khusus dalam penyimpanan hasil panen di gudang terutama kadar air hasil panen. Pada penelitian dalam bentuk kegiatan pengabdian kepada masyarakat ini dibuat sebuah alat monitoring kadar air pada gabah dengan memanfaatkan mikrokontroler node MCU dan sensor kadar air yang terhubung ke internet. Data monitoring kadar air disimpan pada database dan pengguna dapat mengaksesnya melalui perangkat smartphone pada halaman website. Sehingga pengguna dapat mengakses kondisi hasil panen mereka yang ada di gudang bisa dilakukan dimana saja. Kegiatan pengabdian masyarakat dilaksanakan di Desa Kampungbaru, Nganjuk. Berdasarkan hasil implementasi dan pengujian, hasil pembacaan sensor kadar air pada gabah sebesar 14% dapat dikirim ke server dan dapat diakses oleh pengguna menggunakan smartphone.   
Aplikasi Terapi Digital Anak Penyandang Autism di Komunitas Forkesi Chapter Surabaya Mahmudah, Hani'ah; Pratiarso, Aries; Saleh, Akuwan; Yuliana, Mike; Kristalina, Prima; Samsono Hadi, Moch. Zen; Dutono, Titon; Anisah, Ida; Sa’adah, Nihayatus
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol 4, No 2 (2022): BUDIMAS : VOL. 04 NO. 02, 2022
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/budimas.v4i2.5906

Abstract

Many parents in the Surabaya Chapter Forkesi Community (Indonesian Special Children's Parents Communication Forum) do not understand how to care for and teach children with autism, despite the fact that 50 percent of the members of this community are parents of children with autism. This service aims to assist parents in dealing with their autistic children on a daily basis. Furthermore, to address the issue of disadvantaged children with autism who are unable to participate in therapy or seek treatment from psychologists on a regular basis due to the high expense of doing so. The development of an augmented reality-based android mobile application using the marker method will include learning materials for build a match and WH questions, as well as games to help deepen learning, and will be used in conjunction with the ABA method and DTT technique. In May-July 2021, this service activity was carried out in the Surabaya Chapter Forkesi community. Data collecting, interactions with community members, and direct implementation were the strategies used in this service. According to the findings of the Usability Testing, which received a score of 54.6, parents of children with autism agree on the use of digital therapy via Android mobile app.
Sistem Sirkulasi Air Kolam Otomatis Berdasarkan Nilai pH Ramadhani, Afifah Dwi; Sudarsono, Amang; Pratiarso, Aries; Yuliana, Mike; Ningsih, Norma; Hadi, Mochammad Zen Samsono; Kristalina, Prima; Satiti, Rini; Astawa, I Gede Puja; Siswanto, Anang
PUBLIKASI PENGABDIAN KEPADA MASYARAKAT Vol 4 No 1 (2024)
Publisher : Fakultas Ekonomi dan Bisnis Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/padimas.v4i1.6714

Abstract

Banyak petani dari berbagai lapisan masyarakat, baik itu dari kalangan menengah atas maupun kalangan bawah yang memiliki lahan terbatas, beralih ke praktik pertanian modern seperti aquaponik. Pendekatan ini tidak hanya efisien dalam penggunaan ruang dan waktu, tetapi juga mampu menghasilkan panen yang optimal melalui perawatan yang cermat. Dengan memonitoring pH air menjadi langkah penting dalam menilai kualitas air yang dapat memberikan informasi mengenai kondisi baik atau buruknya. Air yang memiliki kualitas buruk dapat menimbulkan dampak negatif terhadap kesehatan ikan, seperti munculnya berbagai penyakit. Perubahan pH air juga dapat mengakibatkan perubahan aroma, rasa, dan warna air. Oleh karena itu, penelitian ini bertujuan untuk merancang dan menerapkan suatu sistem yang berfungsi untuk memantau tingkat keasaman (pH) dalam air, dengan memanfaatkan kemajuan teknologi saat ini. Pengukuran pH air dapat dilakukan secara manual menggunakan pH meter pada mikrokontroler. Oleh karena itu, dikembangkan sistem pemantauan untuk mempermudah pengendalian pH air, sehingga proses pembenihan ikan dapat ditingkatkan dan disederhanakan. Pada pengujian sensor pH, ketika terdeteksi nilai pH di luar kisaran netral misalnya 7,71 maka sistem sirkulasi air akan aktif untuk mengoreksi pH kolam agar mencapai kondisi netral. Hal ini bermanfaat untuk menjaga kualitas air kolam.
Aplikasi Terapi Digital Anak Penyandang Autism di Komunitas Forkesi Chapter Surabaya Mahmudah, Hani'ah; Pratiarso, Aries; Saleh, Akuwan; Yuliana, Mike; Kristalina, Prima; Samsono Hadi, Moch. Zen; Dutono, Titon; Anisah, Ida; Sa’adah, Nihayatus
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 4 No. 2 (2022): BUDIMAS : VOL. 04 NO. 02, 2022
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Many parents in the Surabaya Chapter Forkesi Community (Indonesian Special Children's Parents Communication Forum) do not understand how to care for and teach children with autism, despite the fact that 50 percent of the members of this community are parents of children with autism. This service aims to assist parents in dealing with their autistic children on a daily basis. Furthermore, to address the issue of disadvantaged children with autism who are unable to participate in therapy or seek treatment from psychologists on a regular basis due to the high expense of doing so. The development of an augmented reality-based android mobile application using the marker method will include learning materials for build a match and WH questions, as well as games to help deepen learning, and will be used in conjunction with the ABA method and DTT technique. In May-July 2021, this service activity was carried out in the Surabaya Chapter Forkesi community. Data collecting, interactions with community members, and direct implementation were the strategies used in this service. According to the findings of the Usability Testing, which received a score of 54.6, parents of children with autism agree on the use of digital therapy via Android mobile app.