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Wireless sensor network positioning method and wireless sensor network positioning system

A wireless sensor, network positioning technology, applied in the field of sensors, to achieve the effect of improving positioning accuracy, low hardware requirements, and reducing the scope of the area

Active Publication Date: 2013-04-10
江苏感知恒安科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a wireless sensor network positioning method and system to solve the problems existing in the positioning of the existing GPS positioning method, positioning technology based on non-ranging and positioning technology based on ranging

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  • Wireless sensor network positioning method and wireless sensor network positioning system
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  • Wireless sensor network positioning method and wireless sensor network positioning system

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Embodiment Construction

[0057] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0058] The terms "system" and "network" are often used interchangeably herein. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B the...

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Abstract

The invention discloses a wireless sensor network positioning method and a wireless sensor network positioning system. The method comprises the following steps that an accumulation result of strength values of signals collected by a sensor is received, the positions of a plurality of objects are respectively assumed to be the center of a grid where the signals are located, signal strength of the plurality of objects is calculated, a reconstruction matrix is built, signals sent from the plurality of objects are reconstructed by solving the smallest and optimization problems of l 1 norm to obtain a reconstruction result X, a first reconstruction error is obtained through calculation and compared with a preset value, and when the first reconstruction error is smaller than and equal to the preset value, the positions of the plurality of objects are confirmed. According to the method, the sensor just needs to collect a small amount of data, hardware requirements of the sensor are low, network communication quantity is reduced, and the service life of the network is prolonged. In addition, the method can be used for positioning of the plurality of objects, and can further reduce the area range of the plurality of objects using an iteration backtracking algorithm, and positioning precision is improved.

Description

technical field [0001] The present application relates to the field of sensor technology, in particular to a wireless sensor network positioning method and system. Background technique [0002] Object localization is an important application scenario of Wireless Sensor Networks (WSN). The location information included in the information collected by WSN can correspond to the physical world and have practical significance. [0003] At present, the most widely used positioning method is to use GPS for positioning, but the use of GPS for positioning is easily restricted by the environment, and it cannot be used indoors or in places where the signal cannot be received due to the obstruction of high-rise buildings in the city. , because the target needs to continuously send location information when using GPS for positioning, which consumes a lot of energy, so it is not suitable for those devices or mobile devices that are deployed in the wild and require battery power. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W84/18
Inventor 何风行余志军沈杰刘海涛
Owner 江苏感知恒安科技有限公司
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