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Indoor personnel positioning system and method based on infrared human body sensor array

A human body sensor and personnel positioning technology, which is applied in the field of wireless sensor network and indoor personnel positioning, can solve the problem of high energy consumption, achieve good robustness, prolong service life, and reduce power consumption

Inactive Publication Date: 2015-10-21
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The positioning system needs to wear nodes on the body of the person, and the energy consumption of this method is relatively high

Method used

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  • Indoor personnel positioning system and method based on infrared human body sensor array
  • Indoor personnel positioning system and method based on infrared human body sensor array
  • Indoor personnel positioning system and method based on infrared human body sensor array

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Embodiment Construction

[0064] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0065] An indoor personnel positioning system based on an infrared human body sensor array, including: several detection nodes, a base station node and a host computer;

[0066] The detection node is used to detect indoor occupants through the infrared human body induction sensor array. When an indoor occupant is detected, a signal is sent to the base station node. At the same time, the detection node sends information to the neighbor detection nodes within the communication radius to wake up the neighbor nodes for cooperative detection.

[0067] Such as figure 1 As shown, the probe nodes include:

[0068] The first power supply module is used to provide power for the first controller, the first wireless module and the infrared human body sensor array;

[0069] The infrared human body sensor array is used for infrared detectio...

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Abstract

The invention provides an indoor personnel positioning system and method based on an infrared human body sensor array. The system comprises a plurality of detecting nodes, a base station node, and a host computer. The detecting nodes are arranged at different positions indoors. The base station node is connected with the host computer through a serial port connecting line. The detecting nodes are wirelessly connected with the base station node. Each infrared human body sensor array comprises four infrared human body sensors. Each infrared human body sensor has a 90-degree detecting range such that each infrared human body sensor array may achieve 360-degree omnibearing detection. Each detecting node transmits a detected result to the base station node via a Zigbee network in order to compute personnel positions. Personnel to be positioned are not required to wear any tag or signal source and are completely passively positioned. The indoor personnel positioning system is high in positioning precision. Since each infrared human body sensor has an about 6-meter detecting radius, the information of more than 3 detecting node may achieve about 1-meter positioning precision which may completely satisfy an indoor personnel positioning requirement.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks and indoor personnel positioning, and in particular relates to an indoor personnel positioning system and method based on an infrared human body sensor array. Background technique [0002] Currently, the most widely used positioning system is the GPS global positioning system, which can provide meter-level positioning services worldwide. The positioning accuracy drops sharply or the situation cannot be positioned. In recent years, with the increasing number of large buildings, indoor personnel positioning technology has become a research hotspot. Due to the characteristics of flexible deployment, low power consumption and self-organizing network of wireless sensor networks, wireless sensor networks have broad application prospects in indoor positioning. [0003] At present, most indoor personnel positioning systems are active positioning, that is, requiring personnel to wear ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W52/02H04W84/18
CPCH04W52/0209H04W64/006H04W84/18Y02D30/70
Inventor 王岩程龙
Owner NORTHEASTERN UNIV
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