多个路由节点同时发送信息给协调器，协调器无法全部接收的问题

For large network deployments, it is important to understand that if several routers are present in the
vicinity of the joining device, there can be a lot of devices sending out IEEE 802.15.4 beacons in response
to an active scan beacon request, and can cause increased overhead in the network at the time a new
device tries to join the network. Additionally, if several devices are trying to join the network at once, in a
large network deployment with hundreds of nodes, the increased traffic can cause packet transmission
failure for brief periods if any data communication is on-going at the time the new devices are trying to join
the network. It is recommended to deploy the network where new device network join times are
randomized to avoid this increased traffic.

"AN123 – Breaking the 400-Node ZigBee® Network Barrier
With TI’s ZigBee SoC and Z-Stack™ Software"

请问这个问题你是怎么解决的，我现在也遇到了同样的问题急需解决，谢谢！

你好，我现在也遇到同样问题，想问问你是怎么解决的？谢谢

可以通过自定义一些协议来解决信号冲突问题。

比如更具id大小延时，

或者增加信息确认，没收到确认的，重新发送

或者增加信道能量评估，信道非空闲进入等待

等等

谢了，点子真多，但是信道非空闲判断，增加信道能量评估咋弄？

@ weibing wu

二楼已经回答了，解决方案参考这篇官方文档：

AN123 – Breaking the 400-Node ZigBee® Network Barrier With TI’s ZigBee SoC and Z-Stack™ Software

类似失败重发、非空闲判断、增加信道能量评估 这些都是协议栈已经做了的事情，不建议把主要精力放这上面。当然如果上面的解决方案解决不了你的问题，你还是可以考虑这些。

个人建议，仅供参考。