RFID Middleware-Based Sensor Data Stream Processing System and Method

A Radio Frequency Identification (RFID) middleware-based sensor data stream processing method, comprising:

• when data transmitted from a sensor node is transmitted from a master node to RFID middleware in a structure of a specific protocol, the middleware reading the transmitted protocol data;
• determining a type of sensor using a code assigned to a sensor node ID of the protocol data read by the RFID middleware;
• determining whether data is sensed data or state information using a command of the protocol data read by the RFID middleware;
• assigning a header code to the data transmitted to the RFID middleware according to a type of sensor;
• converting protocol data, to which the header code is assigned according to the sensor type, into Electronic Product Code (EPC) data according to the sensor type;
• and
• converting the data, converted into the EPC data, into a Uniform Resource Name (URN) code of the sensor on a basis of the information of the header code.

A Radio Frequency Identification (RFID) middleware-based sensor data stream processing method, comprising:

• a SensorListener class receiving sensor data having a specific protocol structure while communicating with a master node, determining a sensor type of the received data, and then determining whether the data is sensed information or state information;
• the SensorListener class assigning the sensor type to an attribute of a data object, assigning sensed information or state information to data, and converting the data into EPC data by performing data conversion;
• a TranslaterFactory class generating a data conversion object corresponding to the sensor type so as to perform data conversion suitable for each sensor;
• and
• a URNMakerFactory class extracting header information from a data object having a format similar to that of an EPC and generating a conversion object corresponding to the header information to generate a data conversion object compatible with the header information, and the conversion object converting the data into a Uniform Resource Name (URN) code.