Vehicle LAN Switch Dynamic Configuration for Driving Mode Adaptation
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Solution Overview
Problem
Autonomous vehicles require significant network equipment capacity to handle large data streams from sensing devices, leading to increased costs and complexity, necessitating a reduction in network equipment capacity while maintaining effective data transmission based on driving modes.
Innovation Solution
A system comprising sensors, a mode determination module, and a LAN switch that selectively transmits and inhibits data streams based on the vehicle's driving mode, using a switch configuration module to manage forwarding rules and ingress filters to optimize bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If network equipment capacity is increased to accommodate large amounts of data from sensing devices, then data transmission capability is improved, but cost and device complexity increase
Solution Approach 1:
The patent implements dynamic reconfiguration of the network switch based on driving modes. The switch dynamically adjusts which sensor data streams are transmitted to the automation module depending on the current driving mode (e.g., autonomous vs. manual), thereby adapting network capacity to actual needs rather than provisioning for maximum capacity at all times.
Solution Approach 2:
The system changes network transmission parameters by selectively enabling or disabling data streams based on driving mode. The network switch reconfigures forwarding rules and ingress filters to control which sensors transmit data to the automation module, effectively changing the network's data handling parameters according to operational requirements.
2Measurement precision
If all sensor data streams are transmitted to the automation module, then processing accuracy is improved, but energy consumption and processing needs increase
Solution Approach 1:
The patent extracts only the necessary sensor data streams for the current driving mode and transmits them to the automation module, while blocking unnecessary data streams at the network switch level. This extraction approach ensures processing accuracy is maintained for relevant sensors while eliminating energy waste on transmitting and processing unnecessary data.
Solution Approach 2:
The system applies partial action by transmitting only a subset of sensor data streams that are necessary for the current driving mode, rather than transmitting all available sensor data. This partial transmission maintains sufficient processing accuracy for safe operation while reducing overall energy consumption and processing requirements.
3Adaptability or versatility
If network equipment is configured for maximum capacity, then adaptability to different driving modes is improved, but cost and device complexity increase
Solution Approach 1:
The network switch implements dynamic reconfiguration capabilities that allow it to adapt to different driving modes by changing forwarding rules and ingress filters in real-time. This dynamic adaptation provides driving mode versatility without requiring permanently configured high-capacity hardware for all possible scenarios.
Solution Approach 2:
The network switch is designed with multi-functionality to handle different driving modes through software-based reconfiguration rather than dedicated hardware configurations for each mode. A single switch infrastructure serves multiple driving modes by dynamically adjusting its data stream filtering and forwarding behavior.
Data Source
AI summary
Systems and methods are provided for operating local area network (LAN) switches in a vehicle. A system includes a plurality of sensors, a mode determination module, and a LAN switch. The sensors are configured to generate a plurality of data streams. The mode determination module is configured for determining a current driving mode of the vehicle. The LAN switch is configured for selectively transmitting and selectively inhibiting each of the plurality of data streams based on the current driving mode of the vehicle.