In recent times, people have become concerned about their environmental conditions, amid deteriorating global statistics on bad air quality, global warming and UV light exposure. Conventional technologies for reading environmental conditions are expensive, bulky and situated, yet, people are mobile and need portable tools to be aware of their immediate environmental conditions on demand. Smartphones are now widely used, endowed with sensors and wireless communication technologies such as Bluetooth, and Near Field Communication (NFC) for external sensor connectivity, making smartphones a viable tool for fingerprinting the environment.
S3 : Simple Smart Sensor
The S3 system architecture
To achieve this goal, we developed S3 ( Simple Smart Sensor) , a two-tier system which consists of S3 Android application and an online dashboard with a data repository. The S3 Android application is used to collect and visualise environmental data; temperature, humidity, UV, ambient light with a smartphone and a credit card-size NFC powered sensor board. The sensor data is then periodically synced to the online MySQL server data repository using the AWARE data sync service. The sensor data can also be visualised on the AWARE dashboard.
The credit card sized NFC powered sensor board
S3: mobile application
The demo video presents an end to end use case of the S3 mobile application. The demo also shows a visualisation of sample environment data sensed with the S3 application and the NFC powered sensor card.
Landing page of the S3 app
Visualisation of Environment data
Guided installation and setup page
Contextual information about environment data
Application preference settings
- Kennedy Opoku Asare, Tore Leikanger, Christian Schuss, Simon Klakegg, Aku Visuri and Denzil Ferreira. 2018. S3: environmental fingerprinting with a credit card-sized NFC powered sensor board. In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct (MobileHCI '18), ACM, 298-305
- Kennedy Opoku Asare. 2018. Enabling Environmental Fingerprinting with an NFC-powered Sensor Board. University of Oulu, Finland