Multi-Sensor Real-Time Event Service Based on Improved Sensor Bus

Sensor Bus is an important part of Sensor Web. This paper proposes a distributed real-time sensor event service model based on improved Sensor Bus which uses a plurality of different protocol sensors as information sources. The model constructs a receiver module for each sensor in which each type of sensor has a corresponding agent to be responsible for receiving real-time data measured by the sensor. These data will be packaged into XMPP messages in order to send to XMPP Server. Sensor event service (SES) communicates with XMPP Server via SES Adapter, filter event according the clients subscription request and notify client when the event meets the subscription conditions. We verify the validity and feasibility of the model through the simulation of high temperature monitoring and warning service of sensors using TCP and UDP protocols respectively.