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

A wireless sensor and motion state technology, applied in the transmission system, network topology, wireless communication, etc., can solve the problems of low positioning accuracy and low positioning reliability of target nodes

Active Publication Date: 2013-07-10
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to construct a wireless sensor network target positioning method and system for estimating the motion state online, and overcome the technical problems of low positioning accuracy and low positioning reliability of target nodes in the prior art

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

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0033] Such as figure 1 As shown, the specific embodiment of the present invention is to provide a wireless sensor network target location method for online estimation of motion state, including a target node for transmitting radio frequency signals, a plurality of wireless sensor nodes for receiving target node signals, and receiving the wireless sensor nodes. The upper computer of the sensor node information, the plurality of wireless sensor nodes constitute a wireless sensor network, and the wireless sensor network target positioning method for online estimation of motion state includes the following steps:

[0034] Step 100: the target node transmits a radio frequency signal, that is, the target node transmits a radio frequency signal according to a signal cycle.

[0035] Step 200: The wireless sensor node receives the signal and uploads it t...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W84/18H04B17/00
Inventor 张晓平汪洋
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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