Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)最新文献_第5页

Emergency Button Wireless Berbasis Arduino Uno 紧急按钮无线Berbasis Arduino Uno

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2019-04-30 DOI: 10.30595/TECHNO.V20I1.3404

Kuat Indartono, Teppei Jordy L'ga Tama, Achmad Jauhar Mushthofa

引用次数: 0

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2019-04-30 DOI: 10.30595/TECHNO.V20I1.3817

Sofyan Pariyasto, Kusrini Kusrini, H. Fatta

{"title":"Image Similarity Searching Use Multi Part Cutting And Grayscale Color Histogram","authors":"Sofyan Pariyasto, Kusrini Kusrini, H. Fatta","doi":"10.30595/TECHNO.V20I1.3817","DOIUrl":"https://doi.org/10.30595/TECHNO.V20I1.3817","url":null,"abstract":"The use of information technology in everyday life continues to increase so rapidly. This is inseparable from the role of researchers, especially in the field of information technology. Information technology has become a necessity so that it is widely used in the fields of education, trade, livestock and even to the agricultural sector. One of the obstacles that is needed is to check all activities involving information systems, especially when there is data in the form of images. Problems that arise are usually needed by humans to check and sort items that have been carried out by humans. This is the background of this research to help reduce activities involving humans. The process of finding the similarity of images in computer vision can be used in several fields such as education, retail, and other fields. In the field of computer vision education can be utilized for the automatic absence process through face recognition, in terms of retailing, it can be used for sorting through object detection. The process of finding similarities between images that are queries and dataset images will be the subject of research, and the process of calculating similarities between queries and datasets will be discussed step by step. The method used in the search process is by calculating the shortest distance between query images and dataset. The steps taken are the extraction feature and then RGB to gray color conversion. The next stage is to cut the image into four parts which will then be calculated the distance of the ecludian. The final part will calculate the performance of the algorithm using the matrix confusion method, so that the test results are in the form of error rates, precision, and accuracy. The trial process uses 30 data using 1000 datasets. In the test results obtained information in the form of recall of 1, 0.66 accuracy and 0.66precision.Keywords: Image Similarity, Histogram Image Grayscale, Ecludiance Distance.","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122742006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Classification of Mango Fruit Quality Based on Texture Characteristics of GLCM (Gray Level Co-Occurrence Matrices) with Algorithm K-NN (K-Nearest Neighbors) 基于灰度共生矩阵纹理特征和K-NN算法的芒果果实品质分类

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2019-04-30 DOI: 10.30595/TECHNO.V20I1.3816

Wahyu Wijaya Widiyanto, E. Purwanto, Kusrini Kusrini

引用次数: 1

Searching Similarity Digital Image Using Color Histogram 利用颜色直方图搜索相似度数字图像

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2019-04-30 DOI: 10.30595/TECHNO.V20I1.3818

Wahyu Wijaya Widiyanto, Kusrini Kusrini, H. Fatta

{"title":"Searching Similarity Digital Image Using Color Histogram","authors":"Wahyu Wijaya Widiyanto, Kusrini Kusrini, H. Fatta","doi":"10.30595/TECHNO.V20I1.3818","DOIUrl":"https://doi.org/10.30595/TECHNO.V20I1.3818","url":null,"abstract":"In the era of globalization and modernization, as now, information technology is widely used in the fields of education, trade, animal husbandry, agriculture and even to the legal sector. One branch of science in the field of information technology that is growing rapidly is computer vision. One of the important roles of computer vision in everyday life is the use of computer vision. This can be applied in terms of face recognition, object detection, and can be applied to group images based on the order of similarity of the image, the ability of computer vision is applied to facilitate human work in selecting from several images to find the most similar images. In this study described the process of finding the similarity of an image with other images through several stages of research flow, the method used is to use RGB values that have been converted to grayscale, then the eucludian distance distance is calculated to determine the value of proximity of an image while calculating performance accuracy algorithm using confusion matrix. The search trial process resulted in an accuracy rate of 0.42, precision of 0.42 and recall 1 of 1000 datasets and 30 random data were taken. Found images that differ in color and shape but when converted into histograms the data has a fairly high similarity to the query. The disadvantage of this research is that images that have histograms similar to queries are displayed as similar images even though the reality is that images are very different from colors and shapes.Keywords: computer vision, similiarity, eucludian distance, grayscale, histogram","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130526586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Metode Look-Up Table Pada Tampilan Jadwal Waktu Sholat Digital 数字祈祷时间显示表上的查看方法

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2019-04-30 DOI: 10.30595/TECHNO.V20I1.3541

A. Yudhana, Abdul Fadlil, Safiq Rosad

{"title":"Metode Look-Up Table Pada Tampilan Jadwal Waktu Sholat Digital","authors":"A. Yudhana, Abdul Fadlil, Safiq Rosad","doi":"10.30595/TECHNO.V20I1.3541","DOIUrl":"https://doi.org/10.30595/TECHNO.V20I1.3541","url":null,"abstract":"Penampil waktu yang menandakan informasi masuknya waktu sholat sering dijumpai di tempat-tempat peribadatan Umat Islam, sebagian besar masjid-masjid saat ini sudah memakai jadwal sholat digital. Namun sering ditemukan waktu sholat yang tertampil tidaklah diperuntukkan untuk daerah tersebut, sehingga kadang mempunyai selisih waktu yang cukup jauh dengan awal waktu sholat sesungguhnya, Hal ini dimungkinkan perbedaan metode dalam menentukan waktu sholat. Dalam penelitian ini,dibuat perangkat yang dapat menampilkan jadwal waktu sholat secara elektronikdengan metode Look-Up Table,metode ini lebih banyak mempunyai alternatif nilai yang didapat dengan menggantikan proses waktu perhitungan dengan operasi pengindeksan arrayyang lebih sederhana. Perangkat keras dibangun berbasis mikrokontroller AT89S52 dengan penanaman nilai jadwal sholat ke EEPROM dan menentukan tata letak alamat memori dari setiap data waktu sholat yang akan dimasukkan. Tampilan LED yang tersusun menjadi 7-segment berupa penanda waktu Jam, Menit, Tanggal, Bulan dan Tahun dengan sumber data waktu berasal dari RTC. Sedangkan sumber data waktu sholat Shubuh, Syuruq, Dzuhur, Ashar, Maghrib dan Isya’ berasal dari tabel data waktu sholat pada EEPROM. Hasil yang didapatkan adalah kecepatan dalam mendapatkan data waktu sholat dan keakuratan yang sesuai dengan sumber data jadwal sholat yang digunakan.","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130928674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Prediksi Peningkatan Sedimentasi Dengan Metode Angkutan Sedimen (Studi Kasus Sedimentasi Di Waduk Mrica) 应对沉淀物运输方法的沉淀物增加(Mrica水库的沉淀物案例研究)

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2018-10-31 DOI: 10.30595/TECHNO.V19I2.3006

Teguh Marhendi, Dewi laras Sulastri Ningsih

引用次数: 5

Turbin Air Tesla dengan Variasi Diameter Lubang Keluaran

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2018-10-31 DOI: 10.30595/techno.v19i2.3196

M. Mirmanto, Arif Mulyanto, Buyung Anugerah

{"title":"Turbin Air Tesla dengan Variasi Diameter Lubang Keluaran","authors":"M. Mirmanto, Arif Mulyanto, Buyung Anugerah","doi":"10.30595/techno.v19i2.3196","DOIUrl":"https://doi.org/10.30595/techno.v19i2.3196","url":null,"abstract":"Paper ini menyajikan hasil pengujian turbin air menggunakan prinsip turbin Tesla. Diameter lubang keluaran, yang berjumlah 4, divariasikan yaitu 10 mm, 15 mm dan 20 mm. Sedangkan diameter piringan turbin yang digunakan sebesar 120 mm dengan tebal piringan 2 mm, jumlah piringan 3 dan jarak antar piringan 2 mm serta terbuat dari CD bekas. Turbin diuji dengan head setinggi 5,2 m. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh variasi besar diameter lubang pada piringan turbin terhadap unjuk kerjanya. Hasil penelitian menunjukan bahwa torsi terbesar dihasilkan oleh turbin dengan besar diameter lubang 20 mm yaitu 0,07 Nm pada putaran poros 203 rpm dan torsi terkecil didapat oleh besar diameter lubang 10 mm sebesar 0,01 Nm pada putaran 702 rpm. Daya maksimum dihasilkan sebesar 2,03 W pada putaran poros 403 rpm dan diameter lubang 20 mm. Daya minimum dihasilkan oleh turbin dengan diameter lubang 10 mm sebesar 0,404 W pada putaran poros 702 rpm. Efisiensi terbesar dihasilkan oleh turbin dengan diameter lubang 20 mm yaitu sebesar 6,57% dan efisiensi terkecil didapat pada turbin dengan diameter lubang 10 mm yaitu sebesar 1,3%.","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analisa Perencanaan Backhaul Untuk Jaringan Long Term Evolution (LTE) Dikota Yogyakarta

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2018-10-31 DOI: 10.30595/techno.v19i2.3010

Muhammad Azhar, Zein Hanni Pradana, Ade Wahyudin

{"title":"Analisa Perencanaan Backhaul Untuk Jaringan Long Term Evolution (LTE) Dikota Yogyakarta","authors":"Muhammad Azhar, Zein Hanni Pradana, Ade Wahyudin","doi":"10.30595/techno.v19i2.3010","DOIUrl":"https://doi.org/10.30595/techno.v19i2.3010","url":null,"abstract":"Pelayanan telekomunikasi sangat berperan penting dalam kehidupan modern. Perkembangan Teknologi LTE dikota sangat besar. Selaku Operator Memerlukan adanya backhaul yang handal namun juga efisien dari transmisi maupun dari segi kapasitas. Backhaul adalah suatu jalur yang menghubungkan dari suatu Base Station ke Base Station lain atau dari suatu Base Station ke core network untuk mengambil trafik dari Base Station tersebut.Pada Penelitian ini Membahas tentang analisa perencanaan backhaul untuk jaringan Long term Evolution di kota Yogyakarta. Dengan menggunakan Microwave sebagai teknologi Backhaul. Penelitian ini membahas Mengenai Perencanaan jaringan Long Term Evolution dengan Frekuensi 1800 MHz agar dapat Mengakomodasi Trafik di kota Yogyakarta dengan Menggunakan Perencanaan Capacity Maupun Coverage. Pada hasil perencanaan Jaringan Long Term Evolution menggunakan Frekuensi 1800 MHz Nilai Rereference Signal Receive Power (RSRP) didapat dari hasil simulasi dari Parameter Long Term Evolutin adalah adalah rata-rata sebesar -75.66 dBm Sedangkan Pada Perencanaan Backhaul Menggunakan Teknologi Microwave diperoleh rata-rata daya terima >-78 dBm dan nilai Availability >99,999% untuk link dibawah jarak <1,7km. Sehingga dapat diambil Kesimpulan Bahwa Backhaul Dengan Teknologi Microwave Pada penelitian ini bekerja dengan baik dan Optimal. dapat menghubungkan Jaringan LTE di Kota Yogyakarta dengan Jarak <1,7 km. Perencanaan ini dilakukan menggunakan atoll 3.3.","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114913998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analisa Model Matematik Arus Sejajar Pantai Pada Groin Seri Permeable

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2018-10-31 DOI: 10.30595/TECHNO.V19I2.3173

Adi Surya Pria Pranata, Novi Andhi Setyo Purwono, Ary Sismiani

{"title":"Analisa Model Matematik Arus Sejajar Pantai Pada Groin Seri Permeable","authors":"Adi Surya Pria Pranata, Novi Andhi Setyo Purwono, Ary Sismiani","doi":"10.30595/TECHNO.V19I2.3173","DOIUrl":"https://doi.org/10.30595/TECHNO.V19I2.3173","url":null,"abstract":"This research is the mathematical model has been made with two groins, permeable and impermeable groins, with the variation is in length and distance; 50 meters, 100 meters, 150 meters and 200 meters. A modelling has been done by using the data of physical modeling study by Chen., et al, 2003, and used as input to the simulation of mathematical models using 2D Boussinesq software.Results of the research showed the influence of variation model long distance between the groins, the reduction of longshore current velocity along the coast with an average 59.21% reduction for the double permeable groin with 50 meters long, 76.02% for 100 meters, 79.50% for 150 meters, 80.49% for 200 meters. The reduction of longshore current velocity along the coast are 57.42% for an impermeable groin groin double with 50 meters, 84.61% for 100 meters, 150% for 88.89 meters, and 89.91% for 200 meters. The distance variation between one groin to the other groin has a result that a longer permeable or impermeable groin affects the reduction longshore current velocity along the coast of the Surf Zone with the addition of longshore current velocity reduction occurs along the coast up to 20%. Reduction of longshore current velocity along the coast by the permeable and impermeable groin Permeable and impermeable groins has not been significantly occured in the long-term groin area exceeding Surf zone with an average additional reduction up to 5%. The longshore current velocity approaching the speed of currents along the coast for the existing conditions at a distance up to 2.4 times of length of groins. And the distance between the groins are too close if we compare to the long groins causing the current direction of movement towards the sea (rip Current). ","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121555056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analisis Torsi dan Efisiensi pada Motor Induksi Tiga Fasa Rotor Sangkar 对扭矩和效率的分析

Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Pub Date : 2018-10-31 DOI: 10.30595/TECHNO.V19I2.3070

Winarso Dsl, Dian Nova Kusuma Hardani

{"title":"Analisis Torsi dan Efisiensi pada Motor Induksi Tiga Fasa Rotor Sangkar","authors":"Winarso Dsl, Dian Nova Kusuma Hardani","doi":"10.30595/TECHNO.V19I2.3070","DOIUrl":"https://doi.org/10.30595/TECHNO.V19I2.3070","url":null,"abstract":"Motor induksi merupakan mesin listrik yang banyak digunakan sebagai penggerak misalnya motor sebagai penggerak belt konveyer untuk industry, pompa air, penggerak alat-alat perkakas dan penggerak peralatan rumah tangga. Motor induksi yang sudah digunakan pasti akan mengalami penurunan torsi dan efisiensi karena penurunan kemampuan nilai material. Penelitian ini bertujuan untuk menganalisis besarnya torsi dan efisiensi motor induksi yang sedang dioperasikan. Motor induksi yang sedang digunakan harus di analisis apakah masih efisien atau tidak, tetapi tidak mungkin melepas motor tersebut karena sedang aktif melayani beban. Dengan mengukur parameter motor induksi tanpa harus melepas motor dari beban maka dapat diketahui torsi dan efisiensi motor tersebut. Pada pengujian motor tanpa beban, uji beban penuh dan uji berbeban didapatkan nilai impedansi belitan stator,impedansi belitan rotor dan slip motor. Dari nilai impedansi dan slip dapat diketahui daya input ke stator, daya mekanik rotor, torsi dan efisiensi. Pada pengujian motor induksi dalam keadaan berbeban dengan tegangan kerja 375 volt di dapatkan daya input 2565 watt dengan kerugian pada kumparan stator dan rotor sebesar 743 watt, daya mekanik yang dikeluarkan oleh motor induksi adalah sebesar 1823 watt, torsi yang dihasilkan rotor sebesar 14 Nm dan efisiensi motor sebesar 71,07 %.","PeriodicalId":402840,"journal":{"name":"Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133922876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1