NON-BEACON MODE ZIGBEE SENSOR NETWORK SYSTEM FOR LOW POWER CONSUMPTION AND NETWORK COMMUNICATION METHOD THEREOF

摘要

Disclosed herein is a non-beacon mode low-power ZigBee sensor network system and network communication method thereof. The method between a parent node (100) and a child node (200) constituting the non-beacon mode ZigBee sensor network system includes providing polling interval information to a parent node (100) if there is a request for network participation from the child node (200), and performing, by the parent node (100), network communication with the child node (200) by determining a time point of a polling request from the child node (200) based on the polling interval information to maintain a wake-up state only at the time point of the polling request from the child node (200) while maintaining a sleep state for a remaining period. The system can reduce power consumption of the parent node (100) in network communication. The system guarantees symmetrical power consumption between the parent node (100) and the child node (200), thereby preventing network instability.