Page 138 - Unleashing the potenti al of the Internet of Things

3 Unleashing the potential of the Internet of Things

False emergency alerts are possible: a state of emergency may be cancelled (for example, in case of
false emergency detection) and, in this case, the IoT application switches back to its normal
operation. The time period required to decide on a false alert (continuation of current operation or
switch back to normal operation) has a different duration for each particular implementation,
depending on its complexity.

7.1 IoT applications with dedicated operation mode

If an IoT application has a dedicated operation mode, which can be activated in case of
emergencies, it can be used without any further action or external control. Figure 1 shows the
operation mode change of IoT applications following this strategy.

Figure 1 – Operation mode change for IoT applications with dedicated operation
mode activated during disaster

Sensor network based applications designed for positioning users in a building and having
dedicated operation modes activated during disaster can be extremely effective for self-evacuation
from the building in case of fires, earthquakes or other disasters.
Another example of this operational strategy is that one of the IoT applications can act as a safety
system.
NOTE – There are prototypes of such safety systems based on wireless sensor technologies (e.g., as
described in [b-ITU-T Y.2222]), but they are not widely used because of long and complex standardization
and certification procedures for the safety system equipment.
IoT applications with dedicated operation mode activated during disaster are required to comply
with all appropriate regulatory rules.

7.2 IoT applications temporally providing resources to external safety systems
Normally, IoT applications have specific purposes and, for the most part, are not intended to assist
or help users during disaster. Consequently, the resources of IoT applications should be assisted by
external safety systems in order to improve the efficiency of the disaster management process.
Figure 2 shows the operation mode change of IoT applications following this strategy.

124 Rec. ITU-T Y.4102/Y.2074 (01/2015)