Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Intelligent positioning navigation system for assisting in rescue in large-size buildings

An in-building, intelligent positioning technology, used in positioning, road network navigators, radio wave measurement systems, etc., can solve problems such as single information, difficulty in supporting continuous high-precision positioning, and GPS signals unable to cover the interior of buildings.

Inactive Publication Date: 2010-10-13
NANKAI UNIV
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The GPS system is currently the most commonly used wireless positioning system, but the GPS signal cannot cover the inside of the building
However, the wireless positioning method based on the mobile communication network has low resolution and large positioning error.
Ultrasonic is a traditional ranging sensor that can be used for positioning, but the information obtained by ultrasonic is relatively simple, which is not easy to identify targets, and it is difficult to support continuous high-precision positioning in large areas

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intelligent positioning navigation system for assisting in rescue in large-size buildings
  • Intelligent positioning navigation system for assisting in rescue in large-size buildings
  • Intelligent positioning navigation system for assisting in rescue in large-size buildings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] (1) The realization principle of real-time high-precision indoor positioning

[0041] Such as Figure 8 As shown, in the indoor environment, a number of wireless sensor nodes are arranged as beacons according to certain rules. Each guide node has the function of radio frequency communication and the function of sending and receiving ultrasonic signals, and has a unique ID number. The corresponding location information and its ID number are stored.

[0042] Such as Picture 9 As shown, after the moving target enters the area, its own receiver (Listener) can obtain the ID number and location information of the neighboring guidance node through radio frequency communication, and can obtain the receiver and guidance through ultrasonic ranging The straight-line distance between nodes, once the information of more than 3 adjacent guide nodes is obtained, the receiver can be calculated according to the position of each guide node and the distance between each guide node and the rec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an intelligent positioning navigation system for assisting in rescue in large-size buildings. Based on a wireless ranging sensor integrating radio frequency communication technology with ultrasonic ranging technology, the intelligent positioning navigation system with multiple functions such as accurate positioning, information interaction, information record, path planning, video and audio in one and the like is constructed and used for dealing with possible terrorist attack, fire and other emergencies in the large-size buildings and rescuing trapped crowds within the shortest time. The system comprises a wireless ranging sensor node array, a mobile terminal and a remote server which are preset in the building, wherein the mobile terminal receives ranging information of the sensor node array; and the terminal can be accurately positioned by a triangulation method as long as ranging data among more than three positioning nodes is acquired, so that an optimal path is quickly planned for a user and related information is sent to the server for a monitoring center to observe. In the aspect of hardware and software design, low power consumption, accurate calculation of distance and position, a conflict avoidance algorithm and the like are realized.

Description

Technical field [0001] The technical field involves wireless communication, radio frequency communication technology and ultrasonic ranging technology, as well as Dijkstra algorithm to realize path planning and navigation and appropriate mathematical modeling ideas Background technique [0002] At present, in order to respond to various man-made and natural emergencies and maintain social stability and the safety of people’s lives and properties, there is an urgent need for a device that can perform real-time precise positioning, navigation and information services under indoor conditions to support the interior of the building. Search, rescue and other activities. GPS system is currently the most commonly used wireless positioning system, but GPS signals cannot cover the interior of the building. However, wireless positioning methods based on mobile communication networks have low resolution and large positioning errors. Ultrasound is a traditional distance measuring sensor th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C21/34G01S5/30H04N7/26
Inventor 王旭庞聪黄胜宇
Owner NANKAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com