SensorML is a standard for specifying sensor data processing, e.g., information fusion, sensor fusion, data fusion. In http://www.opengeospatial.org/, they are working on SensorML (as well as TransducerML).
here i have added some information based WSN's, Please go through these point it may helps you,
Monitoring health care system
The main features of a monitoring system that integrates the HCCAC (Health Care Context-Aware Computing) architecture and wireless sensor networks and is aimed at improving healthcare of dependent people. The HCCAC system is based on a multi-agent architecture that is comprised of various types of intelligent agents. The primary agent in HCCAC is the Interpreter Agent, which is integrated into the system. The purpose of this agent is to provide solutions for the well being of the user through the use of action plans based on the information provided by the WSN sensors.
The most important characteristics of the system are:
(i) the Interpreter Agent has reasoning capability; it can analyze and reason the context data gathered by the system and provide proactive solutions,
(ii) the Interpreter Agent can easily adapt to the context within which it acts,
(iii) gather sensor data and messages from other agents in order to provide efficient solutions and
(iv) the Interpreter Agent performs a data fusion with the information received.
The system uses several WSNs in order to automatically gather context information. Based on the data received by the WSNs, the Interpreter agent fuses, evaluates and reasons the data in order to develop action plans and initiate events that affect the sensors that are also connected in the WSNs.