Patent ID: 8085134
Filing Date: 2011-12-27
Classification: H04W,Y02D

Abstract:
1. A wireless sensor network, comprising: a root node, for sending a total sample number to at least one internal node and a plurality of leaf nodes, wherein the total number of samples is the number of samples to be sensed by the wireless sensor network within a specific time; the leaf nodes, wherein each of the leaf nodes calculates the remaining energy after providing a sample and generates a first calculation result, and the leaf node uploads the first calculation result to the internal node; and the internal node, wherein the internal node generates a second calculation result and a third calculation result based on the first calculation results and uploads the second calculation result to the root node; wherein the root node generates a fourth calculation result and a fifth calculation result based on the second calculation result, then the root node determines the number of samples to be sent by the internal node to the root node within the specific time according to the fifth calculation result and the total number of samples, and finally, the internal node determines the number of samples to be sensed by the internal node and the leaf nodes within the specific time according to the number of samples to be sent by the internal node to the root node and the third calculation result.