RFID Operator ID System for Work Vehicle Security

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Solution Overview

Problem

Work vehicles, such as articulated dump trucks, are vulnerable to unauthorized use due to the lack of secure ignition systems, and there is a need to track operator-specific usage data to ensure efficient operation and appropriate usage.

Innovation Solution

An operator identification control system that includes a source for transmitting operator identification, a machine identification system, and a controller to verify the operator's association with the vehicle, enabling or disabling the vehicle's operation and tool usage based on verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the work vehicle operates upon entry into the cab without key-based ignition, then the ease of operation is improved, but the security against unauthorized use deteriorates

Engineering Contradiction:
Improveease of operationVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical key-based ignition system with an electronic identification system using RFID tags and readers. The operator identification tag communicates with the reader via electromagnetic fields, eliminating the need for physical keys while maintaining security through electronic verification of operator credentials.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If key-based ignition system is used, then the security against unauthorized use is improved, but the ease of operation deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical key-based ignition system with an electronic identification system using RFID tags and readers. The operator identification tag communicates with the reader via electromagnetic fields, eliminating the need for physical keys while maintaining security through electronic verification of operator credentials.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If operator identification system is implemented, then the security against unauthorized use is improved, but the device complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller performs multiple functions: it manages the identification verification process, controls the ignition system, monitors operator credentials, and manages vehicle operations. By consolidating these functions into a single controller, the system achieves security without proportionally increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The RFID reader acts as an intermediary between the operator's identification tag and the controller. It captures the tag signal, validates it, and communicates with the controller, simplifying the overall system architecture by handling the complex communication and validation processes in a dedicated component.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9932043B2System and method for work vehicle operator identification
Publication Date: 2018.04.03 DEERE & CO
  • US9932043B2 patent drawing
  • US9932043B2 patent drawing
  • US9932043B2 patent drawing

AI summary

An operator identification control system and method are disclosed for a work vehicle having a cab, a work tool and a source of propulsion. The operator identification control system includes a source associated with the operator that actively transmits an operator identification to identify the operator. The operator identification control system also includes at least one controller onboard the work vehicle that receives and processes the operator identification to determine whether the operator is associated with the work vehicle, and based on the determination, enables an operation of the work tool and/or a motion of the work vehicle by the operator.