• EWS score data: The corresponding score of each sensed data depending on the
NEWS2 specification illustrated in Fig. 1.
• Configuration data: The definition of the gateway parameters by the medical staff.
For example, the frequency of saving the collected data.
3.2 Gateway Layer Components
We propose the use of a gateway as an edge layer to put the computing at the proximity
of data sources. In each hospital room, a smart gateway is used to collect the vital signs
of the patients. The main components of the proposed gateway illustrated in Fig. 2 are:
a) Local broker
The Broker server acts as an intermediary for messages sent between the publishers and
the subscribers for a specific topic. It routes the messages based on topic rather than the
IP address. When a message is sent by the publish client to the broker server, all the
subscribe clients interested on the related topic of the message will receive the
publication.
Fig. 2. The solution architecture.
Self-adaptative Early Warning Scoring System for Smart Hospital
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