Nowadays, everybody knows that shared bicycles have become a new type of green transportation in the city. The impact on peopleâs health caused by air pollutants exposed near roads has become a concern in recent years. This paper introduces a device which consists of a particulate detector, temperature and humidity sensor, micro-SD card, GPS receiver and the NB-IoT communication module. The device can be installed as a sensor node on a shared bike, and a mobile sensor network has been set up on a shared bike to monitor air quality throughout the city, which is of great significance for urban air quality testing.
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