Motor Vehicle Sensor Data Frames for Unified Ethernet Transmission
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Solution Overview
Problem
Existing vehicle communication networks struggle to efficiently process and transmit diverse types of sensor data, such as video, radar, and lidar data, due to the lack of standardized formats and protocols, leading to increased complexity and costs.
Innovation Solution
The implementation of intermediate data frames within Ethernet packets that include a header indicating the type of data and routing information, allowing for unified processing and transmission of various sensor data types using common electronics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If standardized data frames with data type indicators are implemented, then device complexity is reduced through unified processing, but implementation costs increase due to new protocol requirements
Solution Approach 1:
The patent creates a universal data frame structure that can handle multiple sensor data types (video, radar, lidar, audio, images) through a single standardized protocol. The frame includes a data type indicator field that enables one processing system to universally handle diverse sensor inputs without requiring separate processing paths for each sensor type, thereby reducing overall system complexity while the standardization effort represents the implementation cost.
2Manufacturing precision
If separate processing systems are used for different sensor data types, then data processing accuracy is maintained, but device complexity increases
Solution Approach 1:
The patent segments the data processing approach by including a data type indicator within the standardized frame structure. This allows the system to identify and route different sensor data types (video, radar, lidar, etc.) to appropriate processing handlers while maintaining a unified transmission protocol. The segmentation occurs at the data identification level rather than requiring separate physical processing systems, thus maintaining accuracy while reducing architectural complexity.
Solution Approach 2:
The standardized data frame structure acts as an intermediary between diverse sensors and the processing system. The frame's data type indicator field serves as a mediator that enables the processing system to understand and appropriately handle different data types without requiring dedicated processing paths for each sensor type, thereby maintaining processing accuracy while simplifying system architecture.
3Productivity
If multiple data types are transmitted through the same network, then network efficiency is improved, but data transmission reliability decreases due to protocol conflicts
Solution Approach 1:
The patent applies local quality by including specific data type indicators within the standardized frame structure for different data types. Each frame is locally customized with appropriate data type information (video, radar, lidar, audio, images) while maintaining the same overall transmission protocol. This allows the network to efficiently handle multiple data types simultaneously with clear identification, preventing protocol conflicts and ensuring reliable transmission by treating each data type with its specific requirements within a unified framework.
Data Source
AI summary
In a vehicular communication network, a processor receives a packet that includes data corresponding to a sensor, the packet being in a first format. The processor reformats the packet in the first format to a second format different than the first format. The reformatting of the packet includes the processor generating an intermediate frame that includes a header in the second format and a payload in the second format, the payload including the data corresponding to the sensor. The processor provides the frame to an Ethernet network interface, which encapsulates the frame in an Ethernet packet. The Ethernet network interface then transmits the Ethernet packet via an Ethernet link.