Vehicle Safety Interface Box for False Positive Constraint Management
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Solution Overview
Problem
Existing surveillance systems in equipment transport vehicles, such as trucks and dump trucks, are prone to false positives due to sensor failures, leading to unnecessary speed restrictions and alarm notifications, which can be frustrating for drivers and may not accurately reflect the vehicle's safety status.
Innovation Solution
A process for managing vehicle safety functions that includes a programmed computer program to identify security failures, activate constraints like alarms or speed clamping, and allow drivers to deactivate these constraints through a multi-step process, with recordings saved in databases for verification and regulatory compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If monitoring devices are implemented to detect moving parts position, then safety function is improved, but false positives occur due to sensor failures leading to unnecessary constraints
Solution Approach 1:
The system dynamically adjusts the safety constraint state based on driver validation. When a driver validates that moving parts are correctly positioned despite sensor indications, the system transitions from a constrained state (speed limitation, alarm) to an unconstrained state, allowing normal vehicle operation while maintaining safety monitoring capability.
Solution Approach 2:
The system implements feedback through driver validation. The driver's confirmation that the vehicle is safe to operate feeds back into the monitoring system, allowing it to override false positive sensor readings. This human-in-the-loop feedback mechanism resolves the contradiction by allowing the system to maintain high reliability while accommodating sensor measurement errors.
2Reliability
If safety constraints are activated due to detected failures, then safety is improved, but driver productivity decreases due to speed restrictions and alarm notifications
Solution Approach 1:
The system dynamically changes operational constraints based on validation status. Initially, when a safety failure is detected, the system activates constraints (speed limitation to 15km/h, alarm notifications) to ensure safety. When the driver validates that the vehicle is safe to operate, the system dynamically removes these constraints, restoring full productivity while maintaining safety monitoring.
Solution Approach 2:
The driver takes responsibility for validating the safety status and self-manages the constraint state. By allowing drivers to validate and potentially override safety constraints based on their assessment of actual vehicle conditions, the system empowers operators to maintain productivity when safety concerns are unfounded, while still requiring them to acknowledge and take responsibility for the safety decision.
3Object-affected harmful factors
If monitoring system continuously restricts vehicle speed, then safety risk is reduced, but vehicle usability and driver convenience deteriorate
Solution Approach 1:
The speed restriction constraint is dynamic rather than static. The system imposes speed limitation (maximum 15km/h) only when safety failures are detected and before driver validation. Once the driver validates that moving parts are correctly positioned and the vehicle is safe to operate, the speed restriction is automatically removed, allowing normal operating speeds. This dynamic approach ensures safety when needed while preserving usability when safe.
Solution Approach 2:
The driver acts as an intermediary between the monitoring system and the constraint application. The driver's validation serves as a mediator that can override the automated safety constraints when the driver assesses that the vehicle is safe to operate despite sensor indications. This intermediary human judgment resolves the conflict between automated safety restrictions and actual vehicle usability needs.
Data Source
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AI summary
The invention relates to a method for managing a vehicle safety function (10), comprising the execution of a computer program programmed to perform a safety function capable of identifying a safety failure; and the occurrence of a safety failure leading to the implementation of a constraint, such as the issuance of an alarm or a speed limitation of the vehicle (10). According to the invention, the computer program offers to deactivate the safety function, and the deactivation is recorded and time-stamped in a database.