Kalibrasi Sensor Ultrasonik Hc-Sr04 Sebagai Sensor Pendeteksi Jarak Pada Prototipe Sistem Peringatan Dini Bencana Banjir

Andayani, Martalia; Indrasari, Widyaningrum; Iswanto, Bambang

doi:10.21009/0305020109

Cited by 10 publications

(12 citation statements)

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“…Sensor ultrasonik mendeteksi jarak obyek dengan cara memancarkan gelombang ultrasonik (Permana et al, 2015). Sinyal kemudian dipantulkan kembali dan diterima oleh receiver (Andayani et al, 2016). Sensor ultrasonik pada water level detector dikalibrasi sehingga dapat dijadikan alat pembaca volume hasil penyemprotan yang tertampung pada grid container.…”

Section: Pendahuluanunclassified

Uji Distribusi Semprotan Sprayer Pestisida Dengan Patternator Berbasis Water Level Detector

Dharmawan

Soekarno

2020

JTEP-L

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The research aimed to examine droplet distribution using a knapsack sprayer with a water level detector-based patternator. The tests consist of measuring spraying discharge, effective spray wide and height, droplet distribution pattern and area, and traveling speed. The sensor calibration showed that the system read the liquid volume in the container with R2 = 0.99 at a linear curve: y = 2.572 + 2.502x. The spray discharge was 0.033 L/s. The optimal spray was at 60 cm-nozzle height with effective spray wide and height were 0.64 m and 0.344, respectively. The spray distribution pattern illustrated that nozzle height affected droplet areas. The traveling speed due to nozzle height at 40 to 70 cm was 0.29 to 0.58 m/s, and had a line-up tendency, whereas spraying capacity was declined 1298 to 562 L/Ha.Keywords: Spray distribution, patternator, sprayer, water level detector

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Section: Pendahuluanunclassified

Uji Distribusi Semprotan Sprayer Pestisida Dengan Patternator Berbasis Water Level Detector

Dharmawan

Soekarno

2020

JTEP-L

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“…The frequency of the ultrasonic sound wave transmitted by the transmitter unit is 40 kHz. This sensor counts the wave travel time as a reference to obtain the measured distance [1]- [3], [26], [27].…”

Section: Methodsmentioning

confidence: 99%

The Newton’s Polynomial Based - Automatic Model Generation (AMG) for Sensor Calibration to Improve the Performance of the Low-Cost Ultrasonic Range Finder (HC-SR04)

Gandha

Santoso

2020

J. INFOTEL

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The ultrasonic range finder sensors is a general-purpose sensor to measure the distance contactless. This sensor categorized as low-cost sensor that widely used in various application. This sensor has a significant deviation that lead to significant error in the measurement result. The error that produced by this sensor tends to increase proportionally to the measured distance. The implementation of the particular algorithm is required to reduce the error value. The model-based calibration is a solution to increase the accuracy. The model-based solutions are no longer feasible if the states of the model have changed. The longer of the usage of the sensor lead to sensor fatigue. Sensor fatigue is one of the causes of model state changes. As long as the drift still within the tolerance limit, the performance of the sensor still can be restored by using calibration method. The model-based calibration calibrates the sensor by using the model. The update of the model must be made whenever the changing of the model state occurred. Since the manual model making process is not an easy task, time and cost required, then the Newton polynomial-based AMG (Automatic Model Generation) have been implemented to this research. The AMG algorithm generates the new sensor model automatically based on the most updated states. This automatic model generation is implemented in the calibration process of the ultrasonic sensor. The implementation of polynomial-based AMG algorithm for sensor calibration have been succeeded to improve the accuracy of the calibrated sensor by 96.4% and reduce the MSE level from 25.6 to 0.914.

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“…Konversi data waktu menjadi jarak tempuh (m) dilakukan oleh mikrokontroler [6]. Waktu pengiriman sebanding dengan jarak objek [6] dan konversi datanya menjadi jarak sensor ke benda.…”

Section: Pendahuluanunclassified

“…Konversi data waktu menjadi jarak tempuh (m) dilakukan oleh mikrokontroler [6]. Waktu pengiriman sebanding dengan jarak objek [6] dan konversi datanya menjadi jarak sensor ke benda. Gelombang datang dari transmitter sensor ultrasonik HC-SR04 dan menerima kembali pantulan gelombang ultrasonik [7], [8].…”

Section: Pendahuluanunclassified

Perancangan Model Pengukur untuk Stel Tinggi Bogie Berbasis Android dan Firebase Memanajemen

Purwanti

Putri²,

Faqih³

2022

seniati

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Tindakan semi-perawatan akhir pada stel tinggi bogie termasuk jaminan bagian keselamatan penumpang. Salah satu upaya dengan stel keseragaman tinggi bogie pada 6 titik dengan toleransi pengukuran. Empat belas titik pada bogie diukur oleh teknisi maintenance, terbagi menjadi 3 (tiga) area ukur. Area 3 (tiga) area yaitu; 8 (delapan) titik ukur dari permukaan atas rel kereta ke bogie, 4 (empat) titik dari permukaan atas rel kereta ke permukaan bawah bodi kereta, 2 (dua) titik dari buffer (penyambung kereta) ke permukaan atas rel kereta. Saat ini pengukuran tinggi bogie dengan menggunakan peralatan sederhana, yaitu meteran, penyiku, alat tulis dan lembar Check sheet Laporan. Waktu untuk pengukuran 1 menit/titik atau 8 menit/bogie, atau ± 16 menit satu kereta (2 bogie). Timbullah ide untuk membuat alat pengujian ketinggian bogie terhubung secara realtime database. Penggunaan sensor ultrasonik sebagai deteksi tinggi bogie dengan ESP32 sebagai pemroses data deteksi sensor. Sebagai mikrokontroler, ESP32 memiliki modul Wifi yang dapat mengirimkan data melalui sambungan internet. Hasil proses data terkirim di realtime database firebase lalu tertampil pada aplikasi android. Data jarak dapat disimpan di database dan termonitor melalui website hosting. Dengan alat ini, data ukur lebih presisi dan check sheet laporan dapat dilihat secara online.

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Kalibrasi Sensor Ultrasonik Hc-Sr04 Sebagai Sensor Pendeteksi Jarak Pada Prototipe Sistem Peringatan Dini Bencana Banjir

Cited by 10 publications

References 0 publications

Uji Distribusi Semprotan Sprayer Pestisida Dengan Patternator Berbasis Water Level Detector

Uji Distribusi Semprotan Sprayer Pestisida Dengan Patternator Berbasis Water Level Detector

The Newton’s Polynomial Based - Automatic Model Generation (AMG) for Sensor Calibration to Improve the Performance of the Low-Cost Ultrasonic Range Finder (HC-SR04)

Perancangan Model Pengukur untuk Stel Tinggi Bogie Berbasis Android dan Firebase Memanajemen

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