Sensor Interface Data Replication for Multi-Domain Vehicle Control
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Solution Overview
Problem
Current intelligent vehicle systems face challenges in simplifying external cable connections, reducing data stream transfer resource occupation, and minimizing power consumption, particularly as the number and types of sensors increase, leading to complex architectures with high hardware resource usage.
Innovation Solution
A controller system comprising an intelligent driving domain control unit, a human-machine interaction domain control unit, and a sensor interface unit that replicates sensor data to both units, eliminating the need for a surround view serialization/deserialization chip and cable, and integrates a network switching unit to simplify external connections and reduce resource occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensor data is transmitted to multiple domain control units through separate connections, then data reliability is improved, but device complexity and cable connections increase
Solution Approach 1:
The sensor interface unit creates a copy of the sensor data and transmits it to multiple domain control units (intelligent driving domain control unit and human-machine interaction domain control unit) through a single Ethernet cable connection. This copying mechanism ensures that each control unit receives the complete data set independently, maintaining data reliability while eliminating the need for separate physical connections to each unit.
Solution Approach 2:
The sensor interface unit is designed with multi-functional capability to serve multiple domain control units simultaneously. It can interface with different types of sensors (cameras, radars, etc.) and distribute data to various control units based on their specific needs, making the interface unit a universal component that handles diverse data routing requirements through a standardized connection interface.
2Speed
If multiple domain control units directly connect to sensors, then data access speed is improved, but power consumption increases
Solution Approach 1:
The sensor interface unit acts as an intermediary component between the sensors and multiple domain control units. It maintains a continuous data connection with the sensors, allowing multiple control units to access sensor data simultaneously through this single intermediary without requiring each unit to maintain separate active connections, thereby reducing overall power consumption while preserving fast data access.
Solution Approach 2:
The patent merges the data access pathway by consolidating connections to multiple domain control units through a single sensor interface unit. This combining of access paths allows simultaneous data retrieval by multiple units while sharing the connection overhead, reducing the total power consumption compared to having each unit maintain separate direct connections.
3Measurement precision
If a surround view serialization/deserialization chip is used, then data transmission accuracy is improved, but device complexity and cost increase
Solution Approach 1:
Instead of using complex serialization/deserialization chips, the system uses standard Ethernet data copying and transmission. The sensor interface unit copies sensor data and transmits it via Ethernet to multiple domain control units, achieving reliable data transmission through standard protocols rather than specialized hardware, thereby reducing device complexity and cost while maintaining transmission accuracy.
Solution Approach 2:
The patent replaces expensive, complex serialization/deserialization chips with more economical Ethernet-based data transmission. By using standard Ethernet infrastructure and software-based data handling, the system achieves comparable or superior transmission reliability without the need for costly specialized hardware components, effectively substituting expensive hardware with more affordable standard technologies.
Data Source
AI summary
This application relates to the field of intelligent vehicle technologies in the field of artificial intelligence technologies, and in particular, to a controller system. The controller system includes: an intelligent driving domain control unit; a human-machine interaction domain control unit; and a sensor interface unit that is connected to the intelligent driving domain control unit and the human-machine interaction domain control unit. The sensor interface unit is connected to a sensor, and transmit data of the sensor to the intelligent driving domain control unit and the human-machine interaction domain control unit. In this application, external cable connections can be simplified, occupation of data stream transfer resources can be reduced, and power consumption of a vehicle can be reduced.