A storage method for closed-loop files of autonomous driving data
The autonomous driving data is saved by sorting the target files in binary encoding format by timestamps, which solves the problem of data storage not being able to be visualized in existing technologies, realizes the coupling of variables and location information, and supports data analysis.
CN118132519BActive Publication Date: 2025-10-03XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
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Patent Information
- Application Number
- CN202410253417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2044-03-05
AI Technical Summary
Technical Problem
Existing autonomous driving data storage methods cannot achieve visualization of data analysis and cannot remotely obtain real-time variable data, resulting in coupling problems.
Method used
The target file is in binary encoding format, and the variables and location information are saved in order of timestamps to form a single file, which realizes the coupling of variable data and location information and supports the visualization of data analysis.
Benefits of technology
It realizes the coupling of variable data and position information on the time axis, displays the numerical relationship between various signals at a certain moment and the relationship between the current position of the vehicle, and supports the visual analysis of debugging data.
✦ Generated by Eureka AI based on patent content.
Abstract
A method for storing closed-loop files of autonomous driving data is based on a binary-encoded data format. A matching write program organizes the target file data according to the following rules and then serializes it into binary format for storage. The method includes: target file partitioning, signal definition, signal content storage, map boundary definition, map data storage, and vehicle trajectory storage. Bytes 0 to 7 of the target file record the length of the variable information data field, denoted by n1; bytes 8 to 15 of the target file record the length of the position information data, denoted by n2; bytes 16+n1 to 15+n1+8*4 of the target file store the map boundary; starting at bytes n1+8*4+8*2+4 of the target file, map data is stored; and starting at bytes n1+8*4+8*2+4+map_size of the target file, real-time position data is stored. Arranged in timestamp order, the real-time vehicle trajectory is formed. The present invention achieves the coupling of variable data and position information on the timeline, enabling visualization of debugging data analysis.
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