Roadside V2X Sensing for Obstacle-Blocked Autonomous Driving
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Solution Overview
Problem
In complex environments with many obstacles, such as coastal ports or warehouses, vehicle-mounted sensors may have their field of view blocked, leading to inaccurate and incomplete environmental information, compromising the safety and reliability of automatic driving systems.
Innovation Solution
An automatic driving assistance system that includes a roadside assistance system with roadside sensors, a processing device, and V2X communication devices to collect and share environment information with vehicle-mounted systems, using V2X communication for non-Line of Sight communications to overcome obstacles and ensure reliable data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle-mounted sensors are used to collect environment information, then the system can obtain real-time data, but the field of view may be blocked by obstacles such as containers and goods, leading to incomplete environmental information
Solution Approach 1:
The patent introduces roadside sensors as intermediary devices to collect environmental information. These roadside sensors are positioned outside the vehicle's field of view constraints and can capture data from areas blocked by obstacles. The collected information is then transmitted to the vehicle-mounted system, effectively mediating the information gap caused by field of view blockage.
Solution Approach 2:
The patent shifts the sensing dimension from vehicle-mounted (mobile, limited by vehicle position and obstacles) to roadside-fixed (stationary, positioned at optimal locations). This dimensional change allows the system to obtain environmental information from different spatial perspectives that are not blocked by containers or goods in the port area.
2Reliability
If roadside sensors are deployed to collect environment information, then comprehensive environmental data can be obtained, but the system complexity increases due to additional infrastructure requirements
Solution Approach 1:
The roadside sensors are designed to perform multiple functions: collecting environmental information, transmitting data via V2X communication, and supporting multiple vehicles simultaneously. This multi-functionality reduces the need for dedicated infrastructure for each vehicle, thereby managing system complexity while maintaining high information accuracy.
Solution Approach 2:
The roadside infrastructure operates autonomously, continuously collecting and transmitting environmental information without requiring active vehicle initiation. The system self-manages data collection and transmission, reducing the operational complexity for vehicle-mounted systems while providing comprehensive environmental data.
3Speed
If V2X communication is used to transmit sensed information from roadside to vehicle-mounted systems, then information can be shared with high stability and low latency, but communication reliability may be affected by obstacles in the field of view
Solution Approach 1:
The patent uses roadside infrastructure as an intermediary communication node. Instead of direct vehicle-to-vehicle or vehicle-to-cloud communication that may be blocked by obstacles, the roadside sensors and edge server act as mediators to relay information, ensuring stable communication even when direct line-of-sight is obstructed by containers or other port infrastructure.
Solution Approach 2:
The patent replaces direct optical/RF line-of-sight communication (mechanical wave propagation) with infrastructure-mediated communication. The roadside V2X communication devices and edge server create an indirect communication path that bypasses physical obstacles, substituting the direct wave propagation mechanism with a routed communication architecture.
Data Source
AI summary
The present document describes an autonomous driving assistance system, a roadside assistance system and a vehicle-mounted assistance system. The autonomous driving assistance system may include at least one roadside sensor, a roadside device, a roadside Vehicle to Everything (V2X) communication device and a vehicle-mounted V2X communication device. The at least one roadside sensor may be configured to collect environment information of a surrounding environment and transmit the environment information to the roadside device. The roadside device may be configured to process the received environment information to obtain perception information and transmit the perception information to the roadside V2X communication device. The roadside V2X communication device may be configured to transmit the received perception information to the vehicle-mounted V2X communication device. The vehicle-mounted V2X communication device may be configured to transmit the received perception information to a vehicle-mounted autonomous driving system.