HETEROGENEOUS SENSING DATA COLLECTION METHOD BASED ON MULTIPLE REPRESENTATIVE NODES AND MULTILEVEL FUSION

摘要

Disclosed is a heterogeneous sensing data collection method based on multiple representative nodes and multilevel fusion. The method of the present invention is divided into two parts. 1. For each type of sensing data, multiple data coverage sets are formed in an entire wireless sensor network, and a difference between data in the same data coverage set is less than a specified threshold. In this way, for each data coverage set, sensing values of the entire set can be represented by one representative node. This reduces, at the first level, the volume of data transmitted by the network. 2. During a process of routing data of representative nodes to a base station, representative nodes of a same type of data may be converged onto one path as far as possible according to a routing algorithm provided in the present invention, such that the same type of data is fused again to reduce again the volume of data needing to be transmitted to the base station. Therefore, the method of the present invention can prominently improve the service life of a network.