METHOD FOR REAL-TIME TRANSMISSION OF WIRELESS FIELDBUS

摘要

A real-time transmission method using a wireless field bus is provided to transmit a real-time period data and aperiodic emergency data in real-time by using a field bus frame based on an IEEE(Institute of Electrical and Electronics Engineers) 802.15.4 standard. A superframe having an activation period is formed based on a CAP(Contention Access Period), a CFP(Contention Free Period), and a beacon, and a transmission frame of a wireless field bus is configured(ST1). Data is divided into real-time aperiodic data, a non real-time message, and real-time periodic data, and data transmission is performed in CAP and CFP intervals(ST2). A GTS(Guaranteed Time Slot) allocation process is performed by using scheduling, so that network maintenance is performed(ST3).