Disaster information encoding and decoding method and device based on tree structure

摘要: The invention discloses a disaster information encoding and decoding method device based on tree structure. comprises the steps of determining fixed-length coding result disasterinformation according to first code word root node in structure corresponding an acquisition source second asecond-layer type information; for each sub-node second-layer type, sequentially splicing identification values sub-category form variable-length word, word; result, codeword, demarcation symbol codeword obtain information. By method, complete can be stored as much possible, loss is avoided possible; premise different structures, unification standardization are realized, retention rate with accuracy high.