Infrastructure Traffic Monitoring for Rule-Violation Safe Actions
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Solution Overview
Problem
Existing traffic control systems are ineffective in monitoring and preventing rule violations by both vehicles and pedestrians, leading to safety and efficiency issues, and incur high costs due to the need for advanced vehicle controllers and expanded sensing ranges.
Innovation Solution
A traffic control system that uses infrastructure sensors to monitor mobile bodies and pedestrians within a field, with a safety monitoring device detecting rule violations and instructing safe actions, while the mobile body decelerates proactively if wireless communication fails, ensuring safety and efficiency without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rule violations are monitored on the vehicle side, then safety can be improved, but the vehicle cost is increased due to the need for high-speed vehicle controllers and expanded sensing ranges
Solution Approach 1:
The patent introduces an infrastructure sensor as an intermediary component installed in the environment (e.g., on poles or buildings) to perform rule violation detection. This mediator handles the complex sensing and calculation tasks, allowing mobile bodies to use simpler, lower-cost controllers while maintaining high safety standards through the infrastructure-based monitoring system.
2Reliability
If the sensing range is expanded to monitor pedestrians and rule violations, then safety can be improved, but the vehicle cost is increased due to addition of sensors
Solution Approach 1:
The infrastructure sensor serves as an external intermediary that provides comprehensive sensing coverage for pedestrians and rule violations. This eliminates the need for mobile bodies to carry expensive expanded sensing equipment, as the infrastructure-based sensors perform the monitoring function from fixed positions in the environment.
3Productivity
If a high-speed vehicle controller is used to handle increased calculation amount, then rule violation detection can be performed, but the vehicle cost is increased
Solution Approach 1:
The infrastructure sensor acts as an external computing intermediary that performs the complex rule violation detection calculations. This allows mobile bodies to use simpler, lower-cost controllers while the infrastructure-based system handles the computationally intensive tasks of monitoring multiple entities and enforcing traffic rules.
Data Source
AI summary
Provided is a traffic control system capable of ensuring safety even when an autonomous mobile body, a manned mobile body, or a pedestrian has committed a safety rule violation. This traffic control system comprises a mobile body, an infrastructure sensor that monitors the mobile body and a pedestrian within a field, and a safety monitoring device that communicates wirelessly with the mobile body. The traffic control system is characterized by the safety monitoring device including a rule violation detection unit that detects, on the basis of output from the infrastructure sensor, a rule violation by the mobile body or the pedestrian within the field, and a safe action instruction unit that instructs the mobile body to execute a safe action or safe action preparation corresponding to the rule violation when the rule violation is detected, and the mobile body including a speed control unit that, regardless of the instruction from the safety monitoring device, outputs a control command for decelerating the mobile body if the wireless communication speed thereof with the safety monitoring device is greater than or equal to a prescribed threshold.