MQTT-based wi-sun network data acquisition method and device

Abstract

The invention relates to the field of power distribution data acquisition, and provides an MQTT-based wi-sun network data acquisition method and device, on the basis of deploying an MQTT service in an edge network, in order to solve the problem of data communication between wi-sun edge networks, a new node is deployed between the edge networks of the wi-sun, and an MQTT broker is deployed on the node, so that the data communication between the edge networks of the wi-sun is realized. The main node of each edge network is used as an MQTT client, when one slave node in the edge network needs to communicate with other edge networks, a message related to the other edge network can be sent to the main node of the own network, and when the main node receives that the node identifier contained in the theme sent by the slave node is the other network, the message is sent to the other edge network. If yes, the message is analyzed and repackaged, and is sent to a set root node in the form of an MQTT message.

Description

technical field [0001] The invention relates to the field of power distribution data collection, in particular to an MQTT-based wi-sun network data collection method and device. Background technique [0002] Wi-sun Chinese translation is intelligent wireless network, which is a collective name for a series of standard wireless communication networks based on IEEE 802.15.4 as the underlying protocol. The standard mainly includes wi-sun FAN and wi-sun HAN, of which wi-sun HAN mainly uses In home application scenarios, one-to-one or one-to-many communication is performed between the central node and various devices in the home. wi-sunFAN is mainly used in outdoor scenarios, and is widely used in densely populated smart meters and smart street lights that require multi-hop transmission. For urban networks, this patent is mainly used in the field of power data collection in outdoor scenes, so the wi-sun FAN standard is adopted. [0003] In the wi-sun protocol, the non-storage mo...

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Problems solved by technology

[0008] In the original wi-sun network, the cross-edge network adopts TCP / UDP mode. When a node in an edge network wants to communicate with other edge network nodes, it sets the target IP and transmits the data to the edge master node. The node connects to the backbone network and sends the message to the backbone network. The backbone network finds the master node corresponding to the target edge network according to the routing rules, and the target master node then sends the message to the corresponding slave node. After comparison, it is found that the original wi-sun scheme Routing through the backbone network is required. In the outdoor scene of power distribution collection, the network may often be unstable, and the routing rules of the backbone network may be more complicated, resulting in more resource consumption. The point-to-point communication method is adopted. When When some data needs to be sent to multiple targets, it is also necessary to send the data multiple times from the source to the target

[0009] The communication between wi-sun's edge networks is through TCP / IP technology, and the communication between edge networks is through the backbone network. The external routing rules may be more complicated. When the nearest edge network wants to communicate, it may also need to go through complex routing; Between Wi-Sun networks, when an edge network node wants to send a message to another edge network node, the message needs to be sent multiple times, resulting in the consumption of network resources

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