DESIGN OF BODY HEIGHT MEASURING EQUIPMENT BASED ON THE FOOT LENGTH OF TODDLERS ON DIGITAL WEIGHT SCALES
ALDI LUKMANSYAH PUTRA YUDI

Informasi Umum

Kode

23.04.2696

Klasifikasi

621.381 - Microelectronic

Jenis

Karya Ilmiah - Skripsi (S1) - Reference

Subjek

Microprocessors-design And Construction, Electronic Measuring Equipment,

Dilihat

302 kali

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Abstraksi

<p>Weighing scales and measuring weights are widely used at integrated service posts<br /> around the community and are always used for monitoring the growth and development<br /> of toddlers. The community always monitors the growth of toddlers because the toddler<br /> years are a golden time and are very vulnerable to diseases such as stunting,<br /> malnutrition, and others. However, in the systematic measurement of weight and height<br /> of toddlers, it is very complicated and takes up a lot of space and manpower. There<br /> have been many things that have been done by the Bandung city government, especially<br /> in monitoring the growth and development of toddlers which must be recorded every<br /> 8 times a year.<br /> In this final project, the author is designing a weight and height measuring<br /> instrument that uses a strain gauge and ultrasonic sensor. Data were collected for<br /> toddlers’ gender, height, and foot length to get the formula for the approach to the<br /> length of the soles of the feet and height to be directly proportional. To get the length<br /> of the sole of the foot, an ultrasonic sensor will be used and then calculated in Arduino<br /> nano using the approximate formula for the length of the foot and height. The toddler's<br /> weight will be measured with a strain gauge sensor and then connected to the HX711<br /> module as an analog to digital converter. The measurement results of the ultrasonic<br /> sensor and strain gauge sensor will be received by the Arduino nano microcontroller<br /> then the received data will be calculated and displayed on the Liquid Crystal Display<br /> 16x4.<br /> The result of testing the device is to produce a tool that can detect foot length of<br /> toddlers using ultrasonic sensor with 99.042% accuracy with 43 toddler subjects and<br /> 0.002% precision. The strain gauge successfully read the load of toddler resulting in<br /> 99.707% accuracy and 0.001% precision. Body height measurement using 2 different<br /> linear regression resulting accuracy in 97.042% for male toddler, for the female<br /> 97.822% and the precision level is 0.004%.<br />  </p>

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