On-Site VIS Validation Using RF Collision-Object Emulation
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Solution Overview
Problem
There is no existing method for an operator to safely validate if the Vehicle Intervention System (VIS) of their utility vehicle functions properly, particularly in ensuring all critical safety features operate as intended.
Innovation Solution
An on-site test facility is established, comprising a testing area with a test lane and a computer unit that emulates a collision-risk object by generating and transmitting RF-signals, allowing the VIS to react as if a real object were present, thereby validating its functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a GNSS-based warning system is used to provide proximity warnings and collision predictions, then the system can alert operators to potential hazards, but the system loses accuracy in multi-path environments where signals are reflected by terrain, buildings, or machinery
Solution Approach 1:
The patent introduces an intermediary validation system consisting of test facilities and validation procedures that mediate between the GNSS warning system and the operator. This validation system includes test lanes with known geometric parameters, reference markers, and validation protocols that verify the accuracy of proximity warnings without being affected by multi-path interference during normal operation
Solution Approach 2:
The patent implements preliminary validation actions through pre-shift testing procedures where the warning system's accuracy is verified before operational use. Test facilities are prepared in advance with known reference points and validation scenarios, allowing the system to be tested and certified under controlled conditions before deployment in challenging multi-path environments
2Productivity
If no validation method is provided for the Vehicle Intervention System, then the system can operate without interruption, but the operator cannot verify if critical safety features function properly, creating potential hazardous situations
Solution Approach 1:
The patent implements pre-shift validation procedures that must be completed before the vehicle can be operated. These preliminary actions include testing the VIS with known test objects, verifying intervention thresholds, and confirming communication between system components. The system prevents operation until validation is complete, ensuring safety features are functional before productivity concerns arise
Solution Approach 2:
The patent establishes feedback loops where validation results are communicated to the operator and system controller. Test results provide feedback on VIS functionality, and the system can adjust operational status based on validation outcomes. This feedback mechanism ensures that productivity is not compromised by allowing operation of unvalidated safety systems
3Reliability
If a test facility is established to validate the VIS, then the operator can verify safety feature functionality, but the testing process requires dedicated space and infrastructure at the working site
Solution Approach 1:
The patent uses simplified test objects and simulated collision scenarios that replicate real-world conditions without requiring full-scale physical replicas. Test dummies, virtual objects, and controlled test scenarios copy essential characteristics of actual hazards, enabling validation without complex infrastructure. The test facility copies only the critical elements needed for validation rather than recreating entire operational environments
Solution Approach 2:
The patent designs test facilities with multi-functional capabilities that serve multiple validation purposes. A single test lane can validate multiple VIS functions including proximity warnings, collision predictions, and intervention responses. Test objects can be reconfigured for different scenarios, and the facility can validate both warning system accuracy and intervention system responsiveness, reducing overall infrastructure requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables daily on-site validation of the VIS, ensuring that critical safety features function correctly, thereby preventing potential hazardous situations and maintaining safety standards.
Implementation Method 1
a computer unit that emulates a collision-risk object by generating and transmitting RF-signals
Data Source
AI summary
An on-site test facility and method for validation of an off-road vehicle intervention system onboard an utility vehicle, for example at a mine, using a testing area in the field with a test lane and a computer unit configured to emulate a virtual test object by generating and transmitting a RF-signal corresponding to RF-signal of a real object being in risk of collision with the oversized vehicle when a driver is driving the utility vehicle on the test lane.