Salinity is the key parameters in the shrimp culture environment. Conventional method is by visiting each pond plot. But,due to the large number and distance between the plots, this method is less ...effective. This ineffectiveness can lead to less than optimal yields. Manet is applied to increase the effectiveness of checking salinity using the BATMAN routing protocol. In this study, 2 units of laptops were used that act as Node 1 and Node 4, 2 units of Orange Pi Zero as Node 2, and 3. Each device is connected to a conductivity sensor to measure the salinity. The four devices are configured with an adhoc network using the BATMAN routing protocol. This research was conducted to provide an alternative for monitoring salinity to make it more effective. Based on the results of testing and analysis of network quality, the average delay value is 22.285 ms. The low delay value affects the percentage of packet loss in the four test scenarios with an average percentage of 0.999759613 %. Memory and CPU usage in testing 4 transition scenarios resulted in an average memory usage of 0.225% and CPU usage of 0.725%. The BATMAN routing protocol does not use a lot of memory and CPU usage because it only forwards data packets without the need to process data. From these data, it can be concluded that manet with batman routing protocol can be used as an alternative communication to provide communication network services in areas where there is no fixed network infrastructure.
Internet access is so easy that every level of society can access information from the website. If internet access is used positively, it will produce positive things for its users as well. Such as ...the facilities provided by the management of SMK Al-Mahrusiyah Lirboyo. Students, especially in the Computer and Network Engineering (TKJ) department, get facilities such as PCs in the lab or laptops along with internet access during productive learning hours. In its application in schools, students who are given laptop facilities and internet access do not always use it for learning. Questionnaire data showed that there were other things that were opened, including 37.7% of respondents finding and trying hacking tutorials, 35.8% playing social media, and 34% streaming movies. For this reason, a firewall is needed that restricts students' access to it. The firewall will be formulated with a script on the MikroTik router through the WinBox. The results of firewall tests using a combination of filters and Raw successfully blocked access to social media websites, streaming movies, and anime. The client cannot access and the display in the client browser displays continuous loading. Testing firewalls to ward off DoS attacks was also successful. When tested, LOIC did not send a single request packet and when the CPU resource was checked, the resource was only 1%. The use of firewalls with MikroTik routers is effective in limiting students' access to other things outside of learning. With this, it is hoped that students can better utilize facilities for learning.
Cooking oil that is used repeatedly is called cooking oil. Due to the very high price of cooking oil, people still use used cooking oil for daily cooking, even though it is very dangerous for health ...and can cause a number of diseases, such as stroke, coronary heart disease, hypertension, and cancer. Parameters that are quite important to determine the quality of used cooking oil based on Indonesian quality standards of cooking oil are color parameters, pH, free fatty acid levels and turbidity. These four parameters need to be emphasized so that people can know and control the quality of used cooking oil that is suitable for reuse. In this research, a tool is made that can determine the quality of used cooking oil based on the parameters of color, pH, free fatty acid content and turbidity. The detector is equipped with a TCS3200 sensor to detect color, a pH sensor to detect pH, a conductivity sensor to detect free fatty acid levels and a turbidity sensor to detect turbidity in used cooking oil. For data transmission, the ESP32 module is used and the output data can be viewed and monitored via a 16x2 LCD and a website on a smartphone or computer. The system created has a good quality of information delivery and successful data transmission when testing delay and packet loss. The success rate of sending data from ESP32 to the Webserver is 92.4% and the average delay in sending data is 0.0025 ms.
The electrical installation structure on autobuses is generally still based on the old concept that relies on the fuse, where the fuse is the only safety as well as an indicator of the presence or ...absence of electrical power supply to several electrical devices contained in the autobus. For conditions where there is a short circuit on the line to the electrical load, the electrical equipment on the autobus cannot be operated again. With the problem in the electrical system on the autobus, a monitoring system for controlling the power used on the autobus vehicle was created automatically based on wireless. In this study, the system created using Arduino Uno is functioned as a server node. Then there is a sensor node which will later function to receive incoming data from the Ina219 sensor, then sent using wireless communication to the server node. Then on the server node, all data will be monitored via the LCD display and notification LED, then if there is excessive use the system will turn off the relay where the point is using excess power. From the test results, the sensor node is able to send data from the sensor node readings. Then it is sent to the Node Server and the results obtained are 2% for packet loss. The delay value is 0.29s for the highest result.
Abstrak
Penelitian ini menguji kinerja perangkat pelarut tembaga skala kecil untuk digunakan di labotarium elektronika. Bahan kimia ferri clorida 40 % 1500 ml digunakan sebagai bahan pelarut dasar, ...perangkat ini digunakan untuk menghapus atau menghilangkan sebagian lapisan tembaga yang tidak diperlukan pada rangkaian di Printed Circuit Board (PCB). Sebuah kamera digunakan sebagai sensor kepekatan larutan yang telah digunakan untuk menghapus lapisan tembaga. Data sensor diproses dengan menggunakan Raspberry Pi yang digunakan sebagai pembanding perhitungan kepekatan larutan secara manual dan data dikirimkan ke aplikasi android. Metoda pengalamatan warna Red, Green, dan Blue (RGB) digunakan untuk menentukan kadar tembaga berdasarkan warna yang ditangkap kamera. Hasil pengujian menunjukkan kamera mengidentifikasi warna untuk kadar tembaga dalam laruran mulai dari 0% sampai dengan 0,121 % dan waktu yang diperlukan untuk melarutkan tembaga mencapai 45 menit yang akan digunakan acuan untuk menentukan larutan sudah jenuh. Hasil pengolahan data menghasilkan tampilan kejenuhan dari 30% sampai dengan 100%, artinya perubahan warna untuk kadar laruran kurang dari 0,02% tidak dapat diidentifikasi demikian juga untuk diatas 0,121%. Dengan demikian dapat disimpukan perangkat ini hanya mampu mendeteksi kadar tembaga dalam pelarut diatas 0.02% hingga maksimum 0,121%.
Abstract
This research tested the performance of a small-scale copper solvent device for use in an electronics laboratory. The chemical ferric chloride 40 % 1500 ml is used as a primary solvent. This device removes or partially removes the copper layer that is not needed on the circuit on the Printed Circuit Board (PCB). A camera is used as a sensor for the concentration of a solution used to remove the copper layer. Sensor data is processed using a Raspberry Pi, which compares the attention of the solution manually and the data sent to the Android application. The Red, Green, and Blue (RGB) colour addressing method is used to determine the copper content based on the colour captured by the camera. The test results show the camera identifies the colour for the copper content in the solution ranging from 0% to 0.121%. The time required to dissolve the copper reaches 45 minutes, which will be used as a reference to determine whether the solution is saturated. The data processing results produce a saturation display from 30% to 100%, meaning that the colour change for a solution content of less than 0.02% cannot be identified as well as for those above 0.121%. Thus, it can be concluded that this device can only detect copper levels in solvents above 0.02% up to a maximum of 0.121%.
Abstrak
Pada proses pemesanan makanan di pujasera terkadang terdapat beberapa kesulitan yang menyebabkan terhambatnya proses pengantaran makanan diantaranya adalah sulitnya mengidentifikasi pelanggan ...yang memesan, dimana letak posisi pemesan, dan lamanya proses yang terjadi. Pada proses pemesanan, makanan menggunakan sistem konvensional, pelayan harus meneriakan nama pemesan untuk mencari tempat pemesan. Pada sistem pemesanan pujasera sendiri terdiri dari beberapa tahapan, mulai dari pemilihan kedai, pemesanan minuman atau makanan sampai makanan telah siap disajikan. Pada penelitian ini dibuat suatu sistem pemesanan pintar pujasera menggunakan QR code dan aplikasi android. Untuk pemesanan pelanggan harus memindai QR code dan kemudian memilih kedai, makanan dan minuman yang akan dipesan. Setelah dibayar, data pemesanan berupa makanan, minuman, nama pelanggan dan nomor meja akan dikirimkan ke masing-masing kedai untuk di proses dan setelah pesanan selesai disiapkan, sistem akan mengirimkan notifikasi ke pelayan agar pesanan segera diantar oleh pelayan ke pemesan. Sistem yang dibuat menggunakan software pendukung yaitu kodular. Untuk mendeteksi pesanan yang sudah disiapkan menggunakan sensor hc-SR04, modul wifi esp8266, dan buzzer. Selanjutnya akan dikirimkan ke database firebase dan akan di tampilkan pada aplikasi web di kasir.
Abstract
In ordering food at food courts, sometimes some difficulties cause too many delays in the food delivery process. Among them is the problem of identifying the customer who collected, the position of the orderer, and the length of the process. For example, in ordering food using a conventional system, the waiter must shout the customer's name to find a place to call. The food court ordering system consists of several stages, from choosing a shop to ordering drinks or food until the food is ready to be served. This study created an intelligent food court ordering system using a QR code and an android application. For customer orders, they must scan the QR code and select the shop, food and drink to be ordered. After being paid, the collected data in the form of food, drinks, customer names and table numbers will be sent to each shop to be processed and after the order has been prepared, the system will send a notification to the waiter so that the waiter immediately delivers the order to the customer. The system is made using supporting software, namely modular. To detect orders that have been prepared using the HC-SR04 sensor, esp8266 wifi module, and buzzer. The order and notification will then be sent to the firebase database and displayed on the web application at the checkout.
Pembagian Beban Trafik pada Cluster Server Kusumawardani, Mila; Suharto, Nugroho; Zakaria, Muhammad Nanak
Jurnal EECCIS,
08/2022, Letnik:
16, Številka:
1
Journal Article
Recenzirano
Odprti dostop
Permasalahan yang ada pada server adalah banyaknya user yang mengakses dalam waktu bersamaan. Untuk mengatasinya dapat digunakan konsep cluster server. Metode yang digunakan dalam artikel ini adalah ...membangun 3 cluster server web  dan 1 load balancer dari 4 buah Nanopi2 serta mengimplementasikan algoritma round robin dalam pengaturan kerjanya. Hasil yang diperoleh adalah bahwa terjadi pembagian beban trafik yang berimbang di antara 3 server dengan rata-rata pada saat server menerima request dari client adalah 33.57%, 32.64%, dan 33.8%, serta rata-rata pada saat server memberikan response adalah 33.47%, 34.14%, dan 35.35%
The gate is the most important component of a building's security system. Although almost all homes have gates, they are still opened and closed in the traditional manner. As technology advances, a ...remote control may be used to automatically open and close the gate. In this study, the author attempts to develop a gate utilizing an internet-connected microcontroller and an android smartphone application to make it simpler for users to manage and monitor the motor's status and eliminate the need for a remote control. The automatic gate prototype includes a track length of 3 meters, a 12 V dc gearbox motor, and a control system. The gate load standard is 15.40 kg. The study's findings employ the Internet of Things (IoT) to regulate and observe gate opening and closing as well as gather data on gate status and maintenance. According to test results, an average torque value of 78.44 Nm at an average current value of 10.25 A was obtained utilizing a mass load variation between 1 and 15 kg. Qos performance between Node MCU and Android application shows the quality of data transfer during deceleration with an average value of 34.3 seconds. The average throughput value is 149.6719 bps.
Karena panjangnya lahan tanaman di jalan biasanya banyak tanaman yanglayu atau rusak karena tidak terkontrol penyiramannya. Petugas penyiram tanaman di jalan biasanya menyiram tanaman tersebut secara ...berkala. Penyiraman tanaman jalan kadang menimbulkan kemacetan kecil dan ada bagian tanaman yang tidak tersiram karena dilakukan secara manual.Tujuan dari penelitian ini adalah membuat rancang bangun sistem kendalipenyiram tanaman jalan berbasis kelembaban menggunakan sensor soil moisture, nodeMCU, modul relay, regulator voltage, dan dynamo sprayer. Hasil kinerja perangkat ini berpengaruh dari waktu jadwal penyiraman dan kadar kelembabantanah pada tanaman. Hasil Perancangan dan pengujian alat diperoleh rancangan sistem penyiramtanaman secara otomatis dan dapat memonitor kelembaban tanah tanaman dengan platform thingspeak melalui web browser. Penyiraman akan dilakukan otomatis saat masuk waktu jadwal penyiraman dan kelembaban tanah kering. Hasil pembacaan sensor soil terhadap kelembaban tanah berupa range nilai ADC sebesar500 – 900 saat kondisi sensor basah sedangkan 901 - 1023 saat sensor dalam keadaan kering. Nilai delay pengiriman data hasil sistem monitoring kelembaban tanah sebesar 0.473 ms pada node 1, 0.433 ms pada node 2, dan 0.245 pada node 3. Dimana nilai delay tiap node tersebut dikategorikan baik (0 – 150 ms) sesuai standar ITUT.
Jangkrik adalah jenis serangga yang unik, memiliki suara khas dan aktif pada malam hari, jangkrik banyak dibudidayakan oleh masyarakat karena dapat menjadi penompang perekonomian masyarakat baik ...untuk pakan binatang piaraan,campuran pakan ternak,bahan tambahan pangan hingga campuran kosmetik. Aspek yang perlu di perhatikan dalam pembudidayaan jangkrik yaitu faktor lingkungan yang mempengaruhi hidup dan pertumbuhan jangkrik sehari-hari adalah dari sumber nutrisi,suhu dan kelembapan.Maka dari itu dibuatlah alat “Telecontrolling Pada Kandang Jangkrik Berbasis IoT (Internet of Things)”Alat ini menggunakan sensor DHT22 dan RTC untuk mengukur suhu dan kelembapan didalam kandang jangkrik dan RTC untuk mendeteksi waktu. Input data sensor akan diolah oleh ESP32 yang merupakan System on Chip dengan Wi-Fi dan Bluetooth, kemudian di deteksi oleh Fuzzy Logic untuk menentukan output pengaktifannya dan kapan ternak jangkrik waktunya panen akan dikirim melalui aplikasi telegram.Hasil perancangan sistem untuk kontrol dan monitoring berhasil diterapkan pada kandang jangkrik dengan berdasarkan suhu, kelembapan dan waktu. Sistem dapat mengirimkan notifikasi output dan respon sesuai dengan kondisi yang telah ditentukan dengan aplikasi telegram dan penyimpanan data pada website. Pengujian akurasi sensor mendapatkan hasil presentasi ketelitian yang cukup akurat, yaitu pada rata-rata presentase akurasi suhu mendapat milai 98% dan pada kelembapan mendapatkan nilai 97%, dan Pengujian hasil presentase akurasi pada sistem dan simulasi fuzzy dengan menggunakan aplikasi telegram dan matlab mendapatkan nilai presentase akurasi 31,66%.
PDF