Low-cost automatic station for compost temperature monitoring

Revista Brasileira de Engenharia Agricola e Ambiental

Inácio, Caio T.¹  Rotunno Filho, Otto C.²  Lima, Tomé de A. e²  Paiva, Kary de²  Jordão, Marcelo D. L.²  Firmo, Heloisa T.² 

[1] Empresa Brasileira de Pesquisa Agropecuária, Rio de Janeiro, Brazil;Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

关键词: organic waste;    automation;    social technology;    Arduino.;   

DOI  :  10.1590/1807-1929/agriambi.v21n11p809-813

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

Temperature monitoring is an important procedure to control the composting process. Due to cost limitation, temperature monitoring is manual and with daily sampling resolution. The objective of this study was to develop an automatic station with US$ 150 dollars, able to monitor air temperature at two different points in a compost pile, with a 5-min time resolution. In the calibration test, the sensors showed an estimated uncertainty from ± 1 to ± 1.9 ºC. In the field validation test, the station guaranteed secure autonomy for seven days and endured high humidity and extreme temperature (> 70 °C).

【 授权许可】

CC BY