Perancangan Sistem Peringatan Longsor dan Deteksi Pergeseran Tanah Menggunakan Metode Telemetri

ABSTRACTDesign of Landslide Potential Warning System and Land Shifting Using Telemetry Method: According to the 2019 BNBP Performance Report, landslides are the fourth most frequent disaster in Indonesia, so we need a telemetry tool for land shifting. This system consists of ATMega328 Microcontroller, Linear Variable Differential Transformer sensor and rheostat, accelerometer sensor, rain gauge tipping bucket, and HC-12 wireless communication module. Normally, LVDT sensor reads ground shift in the 0-20 mm range, rheostat shifting up to 66 mm, accelerometer sensor reads data less than 20 deg and rain gauge tipping bucket sensor generates the amount of rainfall below 50 mm/hour which is sent data regularly to user. Warning alarms installed in these prone area will sound if the LVDT sensor reads ground shift30 mm, rheostat51 mm, accelerometer sensor reads data more than 45°, and rain gauge tipping bucket sensor reads more than 70 mm/hour. This test produces measurable parameter data so that it can be displayed and provide warning information.Keywords: alarm warning; ATMega 328; land shifting; landslides; telemetry.ABSTRAKMenurut Laporan Kinerja BNBP 2019, tanah longsor merupakan bencana yang sering terjadi urutan keempat di Indonesia, sehingga perlu suatu alat telemetri terhadap pergeseran tanah. Sistem ini terdiri atas Mikrokontroler ATMega328, sensor Linear Variable Differential Transformer dan rheostat, sensor accelerometer, sensor rain gauge tipping bucket, dan modul komunikasi wireless HC-12. Normalnya, sensor LVDT membaca pergeseran tanah pada range 0-20 mm, rheostat mampu melakukan pergeseran hingga 66 mm, sensor accelerometer membaca data kurang dari 20 deg, dan sensor rain gauge tipping bucket menghasilkan jumlah curah hujan dibawah 50 mm/jam yang kemudian data dikirim secara rutin ke user. Alarm peringatan yang terpasang di daerah rawan tersebut akan berbunyi jika sensor LVDT membaca pergeseran tanah 30 mm, rheostat 51 mm, sensor accelerometer membaca data lebih dari 45 derajat, dan sensor rain gauge tipping bucket membaca data lebih dari 70 mm/jam. Pengujian ini menghasilkan data parameter yang terukur sehingga dapat ditampilkan dan memberikan informasi peringatan.Kata Kunci: alarm peringatan; ATMega 328; pergeseran tanah; tanah longsor; telemetri

Simulasi Monitoring Pergeseran Tanah Menggunakan Sensor LVDT (Linear Variable Differential Transformer)

Pergeseran tanah merupakan salah satu faktor terjadinya tanah longsor (landslide). Untuk itu, diperlukan suatu prototype alat yang dapat membantu memberikan informasi dini dan peringatan akan terjadinya longsor. Telah dilakukan penelitian tentang simulasi pergeseran tanah dengan menggunakan sensor LVDT (Linear Variable Differential Transformer). Sensor LVDT dihubungkan dengan Arduino uno yang kemudian ditampilkan pada LCD dan juga monitoring pada komputer. Pengamatan pergeseran tanah dilakukan selama 5 jam dengan melakukan variasi terhadap sudut kemiringan tanah. Tujuan dari penelitian ini yaitu untuk menguji kerja dari sensor LVDT yang merupakan hasil dari penelitian sebelumnya. Dari hasil pengamatan, terlihat bahwa sensor LVDT ini mampu membaca pergeseran tanah dengan ketlitian 0.01 mm. Adapun jangkauan pergeseran alat ini yaitu hany sampai 14 cm, untuk penelitian selanjutnya akan dikembankan sensor LVDT dengan jangkaun pengukuran yang lebih panjang.

SIMULASI PELIMPAHAN BEBAN SISTEM PMT KOPEL TO KOPEL PADA SAAT PEMELIHARAAN TRAFO BERBASIS ARDUINO MEGA 2560 MENGGUNAKAN VT SCADA 11.2

Mochammad Rizki Samputro, Arkhan Subari in this paper explains that the need for electricity in everyday life demands PT. PLN to always maintain the distribution of electrical energy to customers. Therefore, it is necessary to use a strategy to prevent blackouts if the transformer is being maintained, that is by maneuvering the load through the network or by using a 20 KV coupling system. The 20 KV Coupling System consists of PMT Kopel Transformer 1 and PMT Kopel Transformer 2 or often called PMT Kopel to Kopel. In this research, a Kopel to Kopel PMT simulation tool is used to transfer transformer loads during maintenance using a LY2N DPDT 12 V relay, ZMCT103C current transformer sensor, voltage sensor, tap changer and use Arduino Mega 2560 as a delivery choice change. After the experiment, the total current size of transformer 1 and transformer 2 exceeds the capacity of transformer which is 4.29 A and the voltage difference is 0.71 V (5.9 %). Therefore it is necessary to adjust the current and voltage regulation so that it becomes 2.82 A and 0.06 V (0.5 %). After that the transfer of load Transformer 2 to Transformer 1 using PMT Kopel to Kopel can be done. The load transfer is done by entering the PMT Kopel 1 and PMT Kopel 2 simultaneously and the Incoming 2 PMT is released. For the normalization, PMT Incoming 2 is entered and PMT Kopel 1 and Kopel 2 are released simultaneously.

Design of Blank Thickness on-Line Monitoring System of Continuous Flat Press in Wood-Based Panel Industry

On the base of appraising synthetically of measuring and testing technique and the monitoring system of thickness, the article analyzed the demand of thickness deviation. It also determined the control core of single chip, and studied on the on-line monitoring system of the wood-based Panel thickness, which is measured by laser sensor and differential transformer sensor and based on the technique of wireless sensors in order to develop monitoring precision and automation standard of blank thickness in wood-based panel industry.

Vertical Vibration Conveyor Vibration Testing

In this paper, the test object was vertical vibration conveyor of transporting molding sand in the foundry. Using eddy current sensor and the differential transformer sensor respectively measured for the vertical vibration and rotation vibration, and measurement system block diagram was given. It provided the basis of the design, operation, and fault detection about vibration machines.