The ENGINEERING team installed the Wireless Sensor Network (WSN) nodes in the STORM Italian pilot site, Baths of Dioclethian in Rome, between 19th and 21st of February. With the support of the staff of the Special Superintendence for the Colosseum, the National Roman Museum and the Archaeological Area of Rome, the most suitable points to host the WSN nodes have been identified, in terms of reachability and impact.

The WSN consists of three OEM-type WASPMOTE Libelium and two pre-assembled Plug & Sense based on WASPMOTE: Smart Agricolture PRO, Smart Cities PRO (Figure 1).

Figure 1: Plug&Sense Smart Agricolture PRO (left), Smart Cities PRO (right)

Each Plug & Sense is equipped with sensors, selected from the available ones.

• The Plug & Sense Smart Agricolture PRO is equipped with Temperature, Humidity and Pressure Sensor (BME280), Brightness sensor (TSL2561), Ultraviolet Radiation (SU100) and Weather Station – wind vane, pluviometer and anemometer (WS3000).
• The Plug & Sense Smart Cities PRO has been equipped with Temperature, Humidity and Pressure Sensor (BME280), Particle Matter – PM1 / PM2.5 / PM10 – Dust (OPC-N2), Sulfur Dioxide -SO2 (SO2-A4), Hydrogen Sulfide -H2S (4-H2S-100) and Nitric Dioxide – NO2 (NO2-A43F).

The WASPMOTEs have been assembled according to the domain experts requirements. Each WASPMOTE has been inserted in a weatherproof junction box (IP67) for outdoor use. Inside the box, in addition to the board, the selected battery and sensors have been installed. Three nodes, each equipped with sensors, have been assembled. More in details:

• Gases Sensor Node (Figure 2 and Figure 3) equipped with Temperatures, Humidity and Pressure Sensor (BME280), Oxygen – O2 (SK-25), Carbon Dioxide Sensor – CO2 (TGS4161), Nitrogen Dioxide Sensor – NO2 (MiCS-2714), CO, Hydrocarbons, Volatile Organic Compounds – VOC (MiCS-5524) and Air Pollutans I sensors – AP1 (TGS2600);

Figure 2: Gases Sensor Node

Figure 3: Gases sensor board with installed sensors

•  Environmental Node (Figure 4) equipped with Temperature and Humidity Sensor, DHT22 (Figure 5 and Figure 6) and Sound Detector;

Figure 4: Environmental Node

Figure 5: Radiation Shield with DHT22

Figure 6: DHT 22

 

•  Acoustic Noise Node (Figure 7) equipped with three Sound Detectors with a 120 ° angle (Figure 8).

Figure 7: Acoustic Noise Node

Figure 8: Sound Detector

To sum up, five nodes and a Meshlium router (Figure 9) have been installed. The MESHLIUM router is a mini pc that runs a Linux operating system for hardware management. It acts as a gateway for the nodes and offers an Internet connection through WiFi to all devices in the coverage area. Through the 4G module, the router forwards the information coming from the various nodes to the Cloud ENGINEERING Edge where SENTILO (storm-edge.eng.it/sentilo-catalog-web), a management software for the storage of the received measurements, is installed and configured (Figure 10).

Figure 9: Router/Gateway MESHLIUM

Figure 10: Router/Gateway MESHLIUM information flow through 4G module

 

The following map shows the installations:

Figure 11: Installations Map

 

The following figures show each installation in details:

1. Weather Station (Figure 12)
2. Environmental Node (Figure 13)
3. Smart Cities PRO (Figure 14)
4. Acoustic Noise Node (Figure 15)
5. Gases Sensor Node (Figure 16)

M.  Meshlium (Figure 17)

 

Figure 12: Weather Station	Figure 13: Environmental Node to monitor temperature and soil humidity inserted in a Radiation Shield and equipped with a microphone to detect environmental noise (Michelangelo Cloister).
Figure 14: Smart Cities installed near the road to monitor environmental pollution.	Figure 15: AcousticNoise, installed near the road to monitor acoustic pollution.
Figure 16: Gases Sensor Node to monitor environmental pollution in the Diocletian Baths near the Michelangelo Cloister.	Figure 17: Router/Gateway MESHLIUM

Each node is equipped with a XBee 868LP communication module, a battery and a solar panel (Figure 18 and Figure 19).

Figure 18: Plug&Sense Smart Cities equipped with solar panel and sensors

Figure 19: Waspmote Gases Sensor Node assembled in an airtight box with a solar panel