Meaning
Operational status of a wireless device that has lost its connection to a network coordinator prevents data transmission. Transition into an orphan node state begins when a device misses a specific number of consecutive beacons or keep-alive acknowledgments. This condition forces the hardware to stop its normal application tasks.
The state persists until the device successfully executes a realignment or rejoin procedure.
Connectivity Loss
External factors like physical obstructions or interference usually trigger the transition into this mode. Once in an orphan node state, the device must decide whether to scan for its original network or search for a new one. This decision logic determines how quickly the system can resume its functions.
Reconnection Attempt
Automated search routines attempt to locate a compatible parent node to restore the data link. The orphan node state requires the radio to enter a high-power scanning mode that differs from its usual low-power duty cycle. Frequent transitions into this state can lead to rapid battery depletion.
Buffer Overflow
Local memory fills up quickly when a device cannot offload its collected data to the gateway. While in an orphan node state, the device might overwrite old data or stop its sensing activities entirely. The capacity of the internal storage dictates how long the node can remain disconnected before data loss occurs.
