Wireless sensor network target location method and system used for online estimation of motion states

Abstract

The invention relates to a wireless sensor network target location method and system used for online estimation of motion states. The wireless sensor network target location method and system used for the online estimation of the motion states comprises a goal node, a plurality of wireless sensing nodes and an upper computer, wherein the goal node transmits radio-frequency signals, the plurality of wireless sensing nodes receive the signals of the goal node, and the upper computer receives information of the wireless sensing nodes. The wireless sensor network target location method and system used for the online estimation of the motion states includes the steps that the goal node transmits the radio-frequency signals; the wireless sensing nodes receive the signals and upload the signals to the upper computer; the motion states of the goal node is judged; and the goal node is located. According to the wireless sensor network target location method and system used for the online estimation of the motion states, the goal motion states can be judged online, location precision is improved by averaging through coordinate location under a goal motionless state, and location reliability can be guaranteed only by utilization of cycle measuring data location under a goal mobile state.

Description

technical field

[0001] The invention relates to a wireless sensor network target positioning method and system, in particular to a wireless sensor network target positioning method and system for online estimation of motion state. Background technique

[0002] Wireless sensor network is a new type of perception platform born of integrated sensing, communication and computing technology in recent years. Target positioning is one of the main applications of wireless sensor network, and it is a hot research field at home and abroad. In order to improve the performance of multi-target positioning, the invention patent with the publication number CN101466146 discloses "a multi-target positioning method based on probability weighting in wireless sensor networks". The value method realizes target positioning, avoids the common cumulative error problem in distributed multi-target positioning, and improves the performance of multi-target positioning. Considering the impact of interf...

Images