Abstract
FruiTemp is an open-source prototype developed to study the response of endophytic insect species such as fruit flies (Diptera: Tephrtidae) to variable temperature conditions including the controlled laboratory and fluctuating field settings. The system is a three-channel temperature sensor that consists of two precision thermistors that measure the temperature in the core and the surface of a fruit on a tree and a Harsh Environment thermistor that measures the air temperature surrounding the host at a rate of one measurement per 15 min. The sample rate can be adjusted according to the researcher’s needs. The system was successfully tested in field and laboratory experimental conditions using apples as the fruit model. The measurements on apples on trees lasted five consecutive days and produced a range of reliable data. After assessing statistical agreement and precision, the results revealed a differential bias of 0.331 °C and a proportional bias of a magnitude of 0.982. This work promotes open-source implementations allowing inexpensive solutions aiding experimentation procedures by significantly lowering operating costs.
Highlights
Development of technological applications in monitoring of environmental traits involves countless custom-made and/or industrial devices. These serve for overviewing smart greenhouses, in applications in precision agriculture, in smart farms [1,2], in recording climatic conditions, in applications of sensors for camera trap devices, in recording behavior of wildlife using tracking devices [3], etc
Quantitative assessment can be efficiently performed via methods based on statistical analysis of agreement that are implemented in open-source software
Measurements were successfully logged, with the device having no failure in any of the 15- or 1-min intervals along the course of this study
Summary
Development of technological applications in monitoring of environmental traits involves countless custom-made and/or industrial devices. These serve for overviewing smart greenhouses, in applications in precision agriculture, in smart farms [1,2], in recording climatic conditions, in applications of sensors for camera trap devices, in recording behavior of wildlife using tracking devices [3], etc. Our goal in this study was to create an inexpensive custom-made device that records core, surface and external temperature of a fruit and test it in laboratory conditions and further in field experiments of interest. Available online: https://www.academia.edu/44461841 /Introduction_to_the_Open_Source_Philosophy_and_The_Benefits_of_Sharing (accessed on 10 March 2021). Available online: https://opensource.org/community (accessed on 19 April 2021). Available online: https://fruitflies-ipm.eu/ (accessed on 20 April 2021). Handheld Temperature and Relative Humidity Data Recorder Sensor in Fruit and Vegetable Warehouses Glasshouses
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