Patent Document ID: 20130089003
Application ID: 13508041
Patent Flag: 0

Claim One:
1. A method of aggregation of a two-level packet for a hybrid topology wireless sensor network, comprising the following steps: a) building all nodes in a wireless sensor network into a hybrid mesh and star topology; b) based on the topology, establishing a two-level packet aggregation structure for periodic sensor data; c) based on the topology and aggregation structure, designing a packet format and realizing the packet aggregation/disaggregation according to the following steps: i. configuring routing nodes and sensor nodes as well as aggregation attributes thereof by a sink node in the network; ii. according to the aggregation attributes, performing a first-level aggregation by the sensor nodes to yield first-level aggregation packets; iii. according to the aggregation attributes, performing a second-level aggregation by the routing nodes to yield second-level aggregation packets; and iv. disaggregating the aggregation packets by the sink node.