Multi-Sensor Modular IoT Platform for High-Density Monitoring of Environmental Parameters

In recent years, the rise of the Internet of things and inexpensive sensors enabled the introduction of low-cost devices for high-density urban air quality monitoring. These are commonly manufactured as closed systems without support for third-party sensors. This paper proposes a universal platform for wireless data transfer, power management, remote configuration, and physical mounting of environmental sensors. The platform consists of a master module with a basic set of sensors, which performs control and communication, and slots for additional modules. The device can utilize alternative power sources. Design of the device is described with emphasis on the platform versatility, accurate temperature measurement, additional modules for measurement of particulate matter, solar irradiation, and noise level. Preliminary results of deployment of 7 devices in urban conditions are presented. Long-term operation tests indicate high reliability of power management and network communication, mechanical and weather resistance.