Data compression and storage method for sensor network

• Main Authors: SHEN LONGQIANG, HUANG HONGQIANG
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2014
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a data compression and storage method for a sensor network. The method comprises the steps that: (1) initialization is carried out, and the initialization comprises the starting of a sensor network, setting sensor network parameters and regularly updating a data compression algorithm library, (2) child nodes collect the data of multiple sensors and store the data in a column format, which means that each type of data is stored as a column, then according to the characteristics of each column of data, a best data compression method is selected to compress the data, and the compressed data is uploaded to a parent node finally, (3) the parent node receives the data packets uploaded by the multiple child nodes and carries out different processing on the properties of the data packets, and then the data is uploaded to an upper level parent node until reaching a cluster head, (4) according to data characteristics, the cluster head carries out storage in a directly row and column nested manne