Power grid communication node disaster recovery self-repairing method and device based on Gray code and medium

The invention discloses a power grid communication node disaster recovery self-repairing method and device based on a Gray code and a medium, and relates to the technical field of power grid information, and the method comprises the steps: selecting a Gray code G with the length of m and the code word number of 2m; constructing a code C0 with the code word number of m and the length of m * 2m based on the Gray code G; performing cyclic shift operation on the code C0 to form a code C consisting of m * 2m code word numbers; coding the power distribution network node data according to the code C; when it is detected that data in the ith row and the jth column of the code C corresponding to the coded power distribution network node data is lost, a truncation code corresponding to the data in the ith row and the jth column is calculated; a function f (.) is used to map the truncated code to obtain repaired code data g, and the function f (.) is a multivariate function; and when the Hamming distance between the tru