USN middleware technology for smart monitoring and controlling systems

With growing technical achievement in sensor device fields and wireless communication fields, smart monitoring services get more and more attractions in many service markets. Smart monitoring services monitor the interesting targets and/or control the situation according to their policies. Sensor network technology enables smart monitoring services to get necessary sensor data and/or to control appropriate actuators to react toward perceived situation. But the heterogeneity and expensive development and operation cost of the sensor networks are difficulties to overcome to propel sensor network related industry. USN middleware is the key solution for these difficulties. It aims at supporting various USN applications to use interesting sensors and actuators in a cost effective way. This paper describes concept and architecture of USN middleware and addresses future of USN middleware.