Suppression method of communication subcarrier interference in distribution electric heterogeneous field network based on fast neighbor search algorithm

The heterogeneous field network of distribution electricity provides data support for improving the reliability and stability of power supply by collecting a large number of operation data of power equipment. However, subcarrier interference leads to the interruption of communication signals in heterogeneous field networks, which further increases the bit error rate, reduces the signal-to-noise ratio and affects the power data transmission effect. Based on this, this paper introduces a fast neighbor search algorithm to suppress the communication subcarrier interference in the distribution electric heterogeneous field network. Firstly, according to the frequency band of communication nodes in the field, the communication model of distribution and utilization heterogeneous field network is constructed. Secondly, the fast neighbor search algorithm is used to determine the neighbor nodes of each communication node. By optimizing the connection relationship between nodes, the signal strength is enhanced and the bit error rate is reduced. Finally, the Chebyshev low-pass filter is used to remove high-frequency noise and leave low-frequency components, so as to improve the signal-to-noise ratio of communication signals, thus suppressing the influence of interference signals on communication quality. The experimental results show that this method has low bit error rate, high signal-to-noise ratio and low interruption probability.