Node recovering method and equipment for power line communication
A technology of power line communication and recovery method, which is applied in the field of communication, and can solve problems such as the slow speed of nodes returning to normal work, the impact of normal business transmission, and the interruption of node business, so as to achieve the effects of improving efficiency, reducing impact, and reducing delay
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Embodiment 1
[0048] figure 2 It is a schematic flowchart of an embodiment of a node recovery method in power line communication according to the present invention. This method can be executed by a node, for example, by figure 1 Node A in the execution. like figure 2 As shown, the method may include:
[0049] 201. When the node does not receive the beacon indication information within the preset time, it sends a beacon retransmission request message to the beacon proxy BPR;
[0050] Wherein, the beacon indication information includes, for example: the beacon sent by the DM, the R-beacon sent by the BPR, and the DM loss indication information sent by the standby DM; If not received, send a beacon resend request message.
[0051] For the preset time, the length of the preset time can be set on the basis of considering the sending time interval of the beacon, the R-beacon, and the waiting time for sending the DM loss indication information, so as to ensure that if the above information i...
Embodiment 2
[0065] image 3 It is a schematic flowchart of another embodiment of the node recovery method in power line communication of the present invention. This method can be executed by the standby DM. It should be noted that it is executed after the standby DM becomes a DM after the DM fails or goes offline; image 3 As shown, can include:
[0066] 301. The application sent by the relay node in the standby DM receiving domain becomes a BPR message;
[0067] The application to become a BPR message carries the device identifier of the node to be served by the relay node; the application to become a BPR message is that the node is in a DM failure and the standby DM is activated when the domain state is determined, and when the node is activated before the standby DM When the BPR is a hidden node relative to the standby DM, it is sent by the relay node;
[0068] 302. The standby DM designates the relay node as the node's BPR.
[0069] The following will take the domain working in the...
Embodiment 3
[0103] Figure 5 It is a signaling schematic diagram of another embodiment of the node recovery method in the power line communication of the present invention. This embodiment is aimed at the situation where the node topology information is insufficient, such as Figure 5 As shown, the method may include:
[0104] 501. Node A receives the beacon (Beacon) sent by DM, or receives the R-beacon (R-beacon) sent by BPR;
[0105] Among them, the DM in this domain is working normally and has not yet failed; if node A can communicate directly with the DM, it can receive the beacon sent by the DM, and may also receive the R-beacon sent by other BPRs, if Node A is a hidden node relative to DM, so node A can receive the R-beacon sent by the BPR specified by DM.
[0106] 502. Node A judges whether beacon indication information is received within a preset time;
[0107] Wherein, the beacon indication information may include: a beacon sent by a DM, an R-beacon sent by a BPR, and a DM los...
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