Optimization on ZigBee OTA Technique

Based on the ZigBee OTA technique which is accomplished in the Z-Stack protocol stack by TI company, In view of the problem of low efficiency and other problems of the ZigBee node firmware broadcasting upgrade, a multi-node concurrent upgrade scheme based on tree network is designed. From the experimental results, it is found that the multi-node concurrent update scheme is able to reduce the load of OTA Server nodes and the data redundancy in ZigBee network, and it can improve the efficiency of broadcast upgrade.