DATA TRANSMISSION SCHEDULING METHOD AND SENSOR NETWORK SYSTEM USING THE SAME

• Main Authors: OTA CHIKARA, KAWAGUCHI HIROSHI, MATSUDA TAKASHI, YOSHIMOTO MASAHIKO
• Format: Patent
• Language: English
• Published: 24.04.2008
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PROBLEM TO BE SOLVED: To provide a data transmission scheduling method and sensor network system using the same, capable of summarizing data at each of sensor nodes and improving a system available time. SOLUTION: The disclosed method includes a setup step of, at each of the sensor nodes, learning transmission/reception events of peripheral other nodes in addition to a transmission/reception event of the present nodes, and a transfer step of tracing the progress of the peripheral transmission/reception events, determining a transmission timing of the present node and summarizing and transmitting data. The setup step includes the steps of: regarding data transmission/reception of the present node and data transmission/reception of the peripheral other nodes, storing an event of each of the data transmission/reception in a case, where communication is normally performed, as a time series list; and, in a case where an event of the same source node and destination node exists on the time series list, deleting such an event from the time series list and storing it as an event at the end of the time series list. COPYRIGHT: (C)2008,JPO&INPIT