一种用于车载以太网的信息校验方法和系统
By encapsulating and processing counter values and first cyclic redundancy check codes in the vehicle Ethernet, the data structure alignment and padding problems are solved, achieving accurate verification and security of transmitted data, and ensuring the information transmission security of the vehicle Ethernet.
CN116321167BActive Publication Date: 2026-07-17CHONGQING CHANGAN TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING CHANGAN TECH CO LTD
- Filing Date
- 2023-03-24
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies in automotive Ethernet cannot achieve accurate cyclic redundancy check due to data structure alignment and data padding issues, which affects driving safety.
Method used
After adding counter values and the first cyclic redundancy check code to the business data, it is encapsulated. By processing the encapsulated data and filling the array, the transmission data is obtained. The continuity of the transmission data is judged by the counter values of adjacent cycles, and the second cyclic redundancy check code is calculated to determine the integrity.
Benefits of technology
It effectively solves the problems of data structure alignment and data padding, ensuring the accuracy and security of data verification in vehicle Ethernet transmission.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116321167B_ABST
Abstract
本发明公开了一种用于车载以太网的信息校验方法和系统，涉及汽车功能安全的技术领域，包括：获取业务数据，在其中加入计数器值和第一循环冗余校验码后进行封装，获得封装数据；对封装数据中的业务数据进行处理，将处理后的业务数据和计数器值进行数组填充，获得传输数据，并通过车载以太网以预设的固定周期进行传输；获得相邻周期的传输数据，根据相邻周期的计数器值，判断传输数据的连续性；根据传输数据计算第二循环冗余校验码，判断传输数据的完整性。本发明解决了数据结构对齐和数据填充问题，实现了对传输信息准确的循环冗余校验，保证了车载以太网信息传输的安全性。
Need to check novelty before this filing date? Find Prior Art