Multi-object positioning based on WSN

In order to realize the precise positioning of the monitored object with the characteristic of sporadic sites, a new method, which is based on wireless sensor network is presented. In the process of the data acquisition of the monitored objects, a role based self-organization protocol is proposed to realize data transmission between any two nodes. The protocol is based on dynamically dividing sensor nodes into several zones to implement distributed calculation. With this protocol, an algorithm based on dynamically adjusting the overlap range of every sensing zone in the vicinity of the monitored object to ensure the precise object positioning is proposed. The whole sensor network is divided into different subsets or sensing zones based on their location, all sensor nodes collaboratively sense object positioning events. It is demonstrate through simulation tests that sensors in close proximity to each other have correlated readings and sensor readings among neighboring sensors also have some correlation within some nearby time intervals and this system not only can enhance the precision of object positioning, but also transmit data acquired from the field reliably.