Internet-of-things intelligent mobile phone indoor locating method and system based on wireless sensor network

Abstract

The invention discloses an internet-of-things intelligent mobile phone indoor locating method and system based on a wireless sensor network. The method comprises the steps that an intelligent mobile phone sends position sensing messages of an area where the intelligent mobile phone is located to wireless base stations through a wifi transmission module on the intelligent mobile phone, wherein signals of at least three wireless base stations cover the area where the intelligent mobile phone is located, and the intelligent mobile phone generates a position sensing message for each wireless base station; the wireless base stations send the position sensing messages to a data collection center, and the data collection center sends the position sensing messages to a locating server, wherein the locating server comprises a locating coverage and a locating coordinate system; the locating server calculates a coordinate of the intelligent mobile phone in the locating coordinate system according to the position sensing messages, and then the coordinate is converted into a coordinate in an intelligent mobile phone map and is sent to the intelligent mobile phone. The method and system makes up the blank of a GPS in the indoor localization, achieves all-dimensional and real-time location of the mobile phone, and greatly improves the precision of the mobile phone indoor location.

Description

technical field [0001] The invention relates to a positioning method and system of the Internet of Things, in particular to a method and system for realizing personnel positioning and tracking through a smart phone, which can realize indoor positioning of the smart phone through a standard 802.11b / g network. Background technique [0002] Abbreviations and definitions of key terms: wireless sensor network (WSN, wireless sensor network), received signal strength indication (RSSI received signal strength indication), wireless local area network (WLAN Wireless Local Area Network). [0003] At present, the application requirements for personnel positioning in specific fields, specific regions, and specific groups of people are constantly increasing. For example, children, mental patients, and elderly people often get lost, which adds unstable factors to social harmony. At the same time, some specific occupations such as community security, express logistics personnel, and mine st...

AI Technical Summary

Problems solved by technology

[0006] The use of wifi positioning also has its limitations. The most obvious problem is the high energy consumption of the wifi system, and the battery-driven portable devices cannot last for a long time. At the same time, the cost of portable devices is more expensive than other solutions.

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