Modification of manual raindrops type observatory ombrometer with ultrasonic sensor HC-SR04

Anton Yudhana, Jessy Rahmayanti, Son Ali Akbar, Subhas Mukhopadhyay, Ismail Rakip Karas

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Abstract

Water, in any way it comes, is important for the life of all living things. Indonesia is an area of tropical equatorial with a variation of rain, which is quite high. The regularity of the distribution of rainfall is one of the aspects most important to the activity of the community. As the development of technology, the intensity of rainfall can be measured manually using Ombrometer Observatory tool. The manual tool for measuring the rain precipitation, Ombrometer Observatorium, is used to take data manually. Samples should be taken at 7.00 a.m. everyday using a measuring cup to know the height of the water contained. However, the type is prone to error at the high rainfall intensity, since the drainage of the samples is conducted every 24 hours. Therefore, much water is wasted. To solve the problem, a modification of a rainfall gauge was made, that is Ombrometer Observatory with ultrasonic sensor HC-SR04. The height of the water in the container is sent through a server of which the data is stored in the database every ten minutes to reduce the risk of evaporation. It also minimizes the error in measuring the rainfall intensity. The results have been compared to the ones by BMKG (Meteorology, Climatology, and Geophysics Agency). The correlation value of the measurement ratio reached 0.9739 or 97.39%.

Original languageEnglish
Pages (from-to)277-281
Number of pages5
JournalInternational Journal of Advanced Computer Science and Applications
Volume10
Issue number12
DOIs
Publication statusPublished - 2019

Bibliographical note

Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Observatory Ombrometer
  • rainfall
  • database
  • ultrasonic sensor
  • IoT
  • rain gauge

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