Infrastructure Sensor System for Collision-Free Region Detection
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Solution Overview
Problem
Existing methods for guiding motor vehicles in a semiautomated manner within infrastructure do not efficiently communicate the availability of collision-free regions, leading to potential collisions.
Innovation Solution
A method that uses regional signals from a surround-sensor system to determine if a region is free of collision objects at an expected arrival time, and communicates this information to the vehicle via a communications network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor vehicle continuously monitors the infrastructure region using surround-sensor system, then the collision detection capability is improved, but the system complexity and energy consumption increase
Solution Approach 1:
The system performs preliminary monitoring of the infrastructure region before the motor vehicle arrives. The surround-sensor system continuously scans the region in advance, and the evaluation unit pre-determines whether collision objects are present at the expected arrival time, rather than waiting for the vehicle to reach the region and then conducting real-time detection.
Solution Approach 2:
The system establishes a feedback loop where the evaluation unit continuously receives regional signals from the surround-sensor system, processes this information to determine collision-free status, and provides feedback to the motor vehicle control unit. This feedback mechanism enables the vehicle to receive timely information about the safety status of the region without requiring continuous complex processing during the actual approach.
2Productivity
If the motor vehicle receives real-time information about collision-free regions, then the trip efficiency and safety are improved, but the information transmission delay and processing time increase
Solution Approach 1:
The evaluation unit determines the collision-free status of the region in advance, before the motor vehicle reaches the region. By performing this evaluation beforehand and storing the result, the system eliminates the need for real-time processing and transmission decisions at the critical moment, thereby reducing information transmission delay and improving trip efficiency.
Solution Approach 2:
The system creates a copy of the regional safety status information and transmits it to the motor vehicle. Instead of requiring continuous real-time data exchange, the system evaluates the region once in advance, stores this information, and provides it to the vehicle when needed, effectively copying the essential safety determination rather than maintaining a live connection.
3Measurement precision
If the surround-sensor system continuously monitors the infrastructure, then the collision detection accuracy is improved, but the energy consumption and computational load increase
Solution Approach 1:
The system performs the energy-intensive monitoring and evaluation actions in advance, before the motor vehicle reaches the region. The surround-sensor system continuously scans the region beforehand, and the evaluation unit processes this information to determine collision-free status prior to the vehicle's arrival, thereby concentrating energy consumption during the pre-evaluation phase rather than continuously during the entire approach.
Solution Approach 2:
Instead of requiring continuous real-time monitoring and processing throughout the vehicle's approach, the system employs periodic action by evaluating the region at specific intervals or in advance periods. The surround-sensor system performs monitoring cycles before the vehicle arrives, and the evaluation unit processes information periodically to determine safety status, thereby reducing overall energy consumption while maintaining detection accuracy.
Data Source
AI summary
A method for assisting a motor vehicle during a trip of the motor vehicle within an infrastructure, the trip of the motor vehicle being guided in an at least semiautomated manner. The method includes: receiving regional signals, which represent a first region of the infrastructure monitored using a surround-sensor system; for the motor vehicle approaching the first region, determining if a second region is free of a possible collision object for the motor vehicle at an expected arrival time of the motor vehicle at the first or second region, based on the regional signals; if the second region is free of a possible collision object for the motor vehicle at the expected arrival time, outputting a release signal for transmitting to the motor vehicle a communications message, that the second region is free of a possible collision object at the expected arrival time.