Abstract
In order to improve the connection rate and transmission efficiency of field network for power distribution grid, a dual-mode heterogeneous field network with high-speed power line broadband carrier and micro-power radio frequency wireless communication capabilities was designed. First, the topological structure of the field network, the networking process of the central node and the free nodes and the dynamic maintenance mechanism of the network were discussed in detail. Secondly, the routing measurement mechanism for creating a hybrid routing table and the improved layer limit shortest path routing algorithm were presented. On this basis, each node in the network could choose the optimal communication media at any given moment to create communication links with the adaptive data transfer speed according to the real-time hybrid routing table. Finally, the dual-mode heterogeneous field network was applied to the electricity consumption information collection system and tested in the laboratory and jobsite. The test results show that the dual-mode field network was more effective than the single-mode field network in shortening the reading meter time and increasing networking success rate.
Highlights
1 Introduction Field network for power distribution grid is an indispensable part in promoting the construction of electric internet of things [1], which is mainly to solve the communication technology problem of the last mile [2, 3]
3 Dual‐mode heterogeneous field area network The dual-mode heterogeneous field network for power distribution grid compromises the merits of High Speed Power Line Broadband Carrier (HPLC) and Radio Frequency Wireless (RF) networks and compensates for each other’s weaknesses
7 Conclusion Field network for power distribution grid is an indispensable part in promoting the construction of electric internet of things, which is mainly to solve the communication technology problem of the last mile
Summary
Field network for power distribution grid is an indispensable part in promoting the construction of electric internet of things [1], which is mainly to solve the communication technology problem of the last mile [2, 3]. If the free node receives network messages from the MAC layer of its HPLC link, it selects the station with good channel quality as its proxy station, initiates an association request message according to the instructions in received message, and judges whether it is allowed to enter the network according to the received association confirmation message.
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