LiDAR Bus Bridge Protocol Conversion With Data Verification
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Solution Overview
Problem
Existing LiDAR systems face challenges in accurately and effectively addressing the reliability and accuracy of data transmission, which can lead to severe consequences in high-standard application scenarios such as autonomous vehicle driving.
Innovation Solution
A bus bridge with integrated data verification mechanisms, including data protocol conversion, received data verification, and output data encoding, to enhance the accuracy and integrity of data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data transmission specification conversion is performed in the bus bridge, then adaptability between different bus systems is improved, but data transmission reliability deteriorates due to potential conversion errors
Solution Approach 1:
The patent applies preliminary action by performing data verification before protocol conversion and generating verification information before data transmission. The received data verification module verifies data integrity prior to conversion, and the output data encoding module encodes verification information into the transmitted data, enabling error detection before and during transmission without compromising conversion capability.
Solution Approach 2:
The patent implements feedback through the verification information generation and transmission mechanism. The output data encoding module generates verification information based on the converted data and transmits it back to the receiving end, where the verification information is used to confirm data integrity, creating a feedback loop that ensures reliability throughout the conversion process.
2Reliability
If additional data verification mechanisms are incorporated in the bus bridge, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the verification functionality with the existing bus bridge structure by integrating the received data verification module and output data encoding module into the standard data transmission path. The verification information is encoded alongside the data using the same transmission channel, combining verification and data transmission functions into a unified system without requiring separate dedicated verification channels.
Solution Approach 2:
The bus bridge is designed with multi-functionality, serving both as a protocol conversion device and a data verification device. The same hardware components handle both the data conversion task and the verification task, making the verification mechanism universal rather than adding separate specialized verification hardware, thus reducing overall system complexity.
3Reliability
If data verification information is encoded and transmitted with the data, then data integrity is improved, but transmission bandwidth is consumed
Solution Approach 1:
The patent applies partial action by encoding verification information selectively rather than verifying all data completely. The verification information is generated and transmitted only when necessary, and the verification process is performed at key transmission points rather than continuously, providing sufficient integrity protection without excessive bandwidth consumption.
Solution Approach 2:
The patent changes the parameter of data representation by encoding verification information in an efficient manner that minimizes bandwidth usage. The verification information is compactly represented and integrated with the data stream, using optimized encoding techniques that reduce the additional bandwidth required while maintaining effective verification capability.
Data Source
AI summary
A bus bridge, a chip, and a LiDAR are provided. The bus bridge includes a reception data verification module configured to determine a reception verification result of received data based on received data verification information carried by the received data; a data protocol conversion module configured to convert the received data conforming to an initial data transmission specification into output data conforming to a target data transmission specification; and an output data encoding module configured to encode at least a portion of the output data to generate corresponding output data verification information, thereby enabling the output data to carry the corresponding output data verification information.