An Indoor Trajectory Tracking Method with Adaptive Step Size
A self-adaptive step size and trajectory tracking technology, applied in the directions of measuring devices, instruments, surveying and navigation, etc., can solve problems such as normal work, and achieve the effect of improving correctness, accuracy and stability, and improving accuracy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0034] In the method of the present invention, at first, for the raw data of the MEMS inertial sensor gyroscope, a double threshold method is adopted to accurately determine the motion state of the pedestrian for subsequent step calculation;
[0035] Then, collect the raw data of the MEMS inertial sensor accelerometer, convert the three-axis acceleration of the carrier (pedestrian) coordinate system to the navigation coordinate system through the coordinate change matrix, and automatically record the number of acceleration samples for each step as the adaptive step size Calculated sign factor to improve the accuracy of step size calculation.
[0036] The invention provides an adaptive step-length indoor trajectory tracking method, which sets the initial speed and end speed of each step to zero, judges whether it is in a walking state, and if s...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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