Unlock instant, AI-driven research and patent intelligence for your innovation.

A Pedestrian Head Reckoning System Based on Low-Cost Sensors and Map Constraints

A sensor and low-cost technology, applied in navigation calculation tools, navigation through speed/acceleration measurement, navigation and other directions, can solve the problem that positioning depends on other external signal transmitting devices, and positioning accuracy cannot be achieved, so as to ensure battery life and function The effect of low power consumption and high positioning accuracy

Active Publication Date: 2021-12-21
SHANGHAI JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the existing technology, the present invention proposes a positioning method and system based on low-cost sensors and map constraints based on intelligent terminals, so as to solve the problem that positioning relies on other external signal transmissions in an environment where satellite positioning signals cannot be received currently. Equipment problems, and can achieve positioning accuracy that cannot be achieved by current positioning technology

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
  • A Pedestrian Head Reckoning System Based on Low-Cost Sensors and Map Constraints
  • A Pedestrian Head Reckoning System Based on Low-Cost Sensors and Map Constraints
  • A Pedestrian Head Reckoning System Based on Low-Cost Sensors and Map Constraints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0051] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0052] see figure 1 As shown, a preferred embodiment of the present invention is a structural schematic diagram of a pedestrian heading reckoning system based on low-cost sensors and map constraints of smart terminals....

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 belongs to the technical field of pedestrian positioning and navigation, in particular to a pedestrian heading reckoning system based on low-cost sensors and map constraints. The system includes an inertial and magnetic field sensor data acquisition module 100 , a pedestrian heading calculation module 200 , a particle filter correction pedestrian position module 300 and a pedestrian position output module 400 connected in sequence. The system has high positioning accuracy, and under the constraints of the map, it can achieve higher positioning accuracy than the original positioning method.

Description

technical field [0001] The invention belongs to the technical field of pedestrian positioning and navigation, in particular to a pedestrian heading reckoning system based on low-cost sensors and map constraints. Background technique [0002] The current global satellite navigation system has matured. my country's Beidou satellite navigation system, the United States' GPS navigation system, Russia's GLONASS navigation system and other satellite-based navigation technologies have been widely used in outdoor positioning and navigation services. However, satellite signals will be severely attenuated or even lost in indoor environments, urban canyons, dense forests, and tunnel overpass environments. At this time, the satellite positioning system will not be able to provide services. At present, the smart terminal technology is developing rapidly. Most smart terminals include inertial sensors and magnetic field sensors. The low-cost sensors in smart terminals can realize the auton...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01C21/20
CPCG01C21/165G01C21/20
Inventor 钱久超慕翔刘佩林
Owner SHANGHAI JIAOTONG UNIV