Non-contact Infrared Temperature Acquisition System based on Internet of Things for Laboratory Activities Monitoring

Abstract In most higher education establishments and universities, laboratories are also used as classrooms. Different conditions throughout laboratory and teaching activities with reliable data quality should be provided and guaranteed. The thermal comfort of the students must be ensured in teaching activities. During the laboratory activities, several parameters must be ensured and monitored, and data collection must be stored to ensure the stability of the environment when the test is conducted and at the data collection moment as they influence the quality of the results. Oftentimes, there is the requirement of tracking object temperatures with non-contact but also to measure the ambient temperature for comparison. Infrared temperature sensors provide a non-contact measurement in a quickly and accurately process. This paper presents an Internet of Things (IoT) solution for real-time temperature supervision named iRT. The solution is composed of a hardware prototype for temperature data collection and Web compatibility for data access. The iRT uses an infrared thermometer sensor module which incorporates an MLX90614 and provides object and ambient temperature supervision in real-time. The Web application can be used to access the collected data but also provides the history of the temperature evolution. The results obtained are promising, representing a significant contribution to infrared temperature monitoring systems based on IoT.