Page 196 - 2015 Security in Telecommunications and Information Technology

3 Unleashing the potential of the Internet of Things

I.3 Environmental and situational information service using public transportation

Environmental and situational information is a useful source for specific mission-critical services
and everyday value-added services. Moreover, information can be more valuable if it is provided
regularly to a wide coverage area. Since it is not efficient to deploy static sensor networks for the
city-wide target area, it is worthwhile to consider the adoption of a mobile solution (mobile sensor
networks).

Environmental sensor nodes, video sensor nodes and location sensor nodes can form sensor
networks on public transportation vehicles like buses or cabs. Environmental sensors include those
which measure temperature, humidity, particulate air pollution, ozone, illumination, ultraviolet, etc.,
and video sensors include video cameras that collect video data on street or traffic situation.
Environmental and video data can be collected together with location data using location sensor
nodes that include GPS information. A gateway can be located in the vehicle where sensor nodes
are installed and be connected to the NGN through various types of wireless access networks. As
the vehicle moves, environmental and situational information is gathered along the route of the
vehicle. Depending on the services, data collection rates can vary. Utilizing the information
collected, a variety of services can be provided, as shown below:

– Traffic surveillance services for the operators of the intelligent transportation system (ITS).
– Environmental monitoring service for the administrators of the city environment.
– Traffic accident or crime inspection service.
Web-based environmental and situational information services can be provided for Internet users
using mobile handheld devices, IPTV terminals or PCs. People who live or work near the
route of the vehicle may be mostly interested in those services.

Traffic surveillance
NGN

Accident and
Gateway crime inspection
Data mining
Environmental Video sensors and analysis Particulate
sensors air pollution
GPS Ozone

Environmental monitoring

Sensor networks on public vehicles

Web-based service
Y.2221(10)_FI.5

Figure I.5 – Mobile USN service of environmental and situational information monitoring

182 Rec. ITU-T Y.4105/Y.2221 (01/2010)