Method for identifying vehicles from GPS (global positioning system) data
A technology of GPS data and vehicles, applied in the field of data mining and urban computing, can solve problems such as redundant road sections, less obvious feature effects, and low accuracy of transfer points, so as to improve recognition rate, accuracy rate, and detection rate effect of effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The method of the invention includes data preprocessing, feature extraction and postprocessing methods.
[0030] Data preprocessing mainly includes two aspects, GPS data point labeling and generation of single traffic mode road segments, including:
[0031] (1) Preliminary marking of GPS data points. If the velocity value of the GPS data point is less than 1.8m / s and the acceleration value of the point is less than 0.6m / s 2 When , mark the type of the point as walk-point, otherwise, mark the type of the data point as non-walk-point.
[0032] (2) Mark correction of GPS data points. For the above markers, due to the existence of noise, the present invention adopts a greedy idea to perform marker correction on GPS data points. That is, in an iterative manner, if 80% of the 10 points in front of and behind a GPS data point are marked as walk-point ...
PUM
Property | Measurement | Unit |
---|---|---|
Length | aaaaa | aaaaa |
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap