Table 5.
Classification of sensors, by type, that were applied for the recognition of contextual data from WSNs in cargo transportation.
| Classification of Sensors by Types of Applicability | Update Rate (High—H, Average—A, Low—L) | Classification of Types of Row Data Sources | Types of Data Exchange |
|---|---|---|---|
| Physical sensors inside of the vehicle | |||
| Speed measurement | H | Data from vehicles | INV |
| Acceleration measurement | H | Data from vehicles | INV |
| Temperature measurement inside the vehicle | L | Data from vehicles | INV |
| Temperature measurement outside the vehicle | In case of needfulness of such conditions | Data from vehicles and RSU | INV |
| Fuel level measurement | L | Data from vehicles | INV |
| The number of passengers measurement | L | Data from vehicles | INV |
| Vision | H | Data from vehicles | INV |
| Transmission of voice given commands | Average | Vehicles | INV |
| Millimetre-wave radar system | H | Data from vehicles | INV |
| Physical sensors outside of the vehicle | |||
| Global location position (GPS) | H | Data from vehicles | INV, V2I |
| Quality of Wireless Sensor Networks (WSN) | A | Data from environment | V2I |
| Information about wireless interface | L | Wireless interface equipment | INV, V2I |
| Virtual additional types of equipment | |||
| Calls | L | Data from smartphones | V2M |
| Calendar information | L | Data from smartphones | V2M |
| Notification of reminders | L | Data from smartphones | V2M |
| User preferences | L | Data from smartphones | V2M |
| Information about road | H | Data from vehicles, governmental institutions, and the environment | V2I, V2M, V2V |
| Notification of warnings | H | Data from another vehicle, governmental institutions, and the environment | V2I, V2M, V2V |
| Information about V2V communication | A | Data from environment | V2I, V2M, V2V |