Information Technology Reference
In-Depth Information
4.4
Critical Medical Information Retrieving System
In this section is explained the mechanism to retrieve VEPMRs from the emergency
scene. In the context of this system each member of the triage and medical personnel
is provided with a mobile device supporting mobile agents. This device allows any
member of the triage or medical personnel to create a mobile agent with a VEPMR
request when any personal document identification of the victim is found.
4.4.1 Retrieving System
Our proposal takes into account three possible scenarios in the emergency scene. The
first one is the existence of a network infrastructure with Internet connection, e.g., cellu-
lar phones network infrastructure (GSM, EDGE or 3G). The second and third possible
situation lack of a network infrastructure with Internet connection. The second one is
a MANET composed of all the neighbor devices of the medical and triage personnel.
In this situation, all the mobile devices are close enough each other to create a fully
connected MANET and some of the mobile devices are near the AMP or ACP. As
a result, all of them are connected Internet through the network infrastructure of the
AMP or ACP, taking advantage of the usual usual ad-hoc networks routing protocols.
Hence, from any part of the network it is possible to directly send the VEPMR request
to the medical network. Finally, the third scenario is similar to the second one but the
MANET is not fully connected. Thus clusters of devices without direct Internet access
are created.
The application described in this chapter is focused on the third scenario. It is based
on creating a mobile agent each time a VEPMR request is done. This mobile agent
contains the identification of the victim whose VEPMR is requested. As the MANET
is not fully connected, the request cannot be sent directly, thus, the mobile agent have
to jump from device to device or cluster to cluster of devices until it reaches the ACP
or AMP. Once the mobile agent has arrived, it can communicate the request to the
VEPMR system of some hospital of the medical network. Mobile agents have been
used to create a mobile agents based MANET. This network uses agent platforms as
routers for the mobile agents, which are equivalent to packets in traditional networks.
Therefore, the routing process is done in the application layer. Nevertheless, the routing
decisions are taken by the mobile agents themselves, accessing and using attributes and
values available in the application layer. Hence, it is possible to use specific routing
protocols or policies in each agent and depending on the situation.
Using this method it is possible to route a mobile agent between two distinct points
of the network despite being isolated in different clusters. In traditional networks this
cannot be done because a fully connected network from the origin point to the destiny
point is needed. Using mobile agents based MANET, the agents can wait for a connec-
tion if there is not, in any part of the network, thus, they can cover a part of the route.
Furthermore, they can use different dynamic routing protocols to reach the destination
point.
Different dynamic routing protocols can be used in the mobile agents based MANET.
In this application, the objective of the mobile agents is to reach the AMP or ACP. So,
the routing protocols must the best route spending the minimum time to arrive there.
The protocol proposed for this application takes into account the time that the medical
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