Remote Operation Activation Using a Machine-Specific Safety Key

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Solution Overview

Problem

The existing remote control systems for mining vehicles face safety challenges due to the complexity of activating the correct vehicle for operation, which can lead to unintentional initiation of the wrong machine, compromising safety and usability.

Innovation Solution

Implementing a work machine-specific safety key that requires physical presence and verification at both the work machine and a predetermined safety location, ensuring that only authorized initiation of the remote operation mode can occur, thereby enhancing safety by preventing accidental activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the remote control station software displays data about all mining vehicles to improve usability, then the operator can easily access vehicle information, but the risk of selecting the wrong vehicle increases

Engineering Contradiction:
ImproveusabilityVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A physical safety key acts as an intermediary between the operator and the remote control system. The key must be inserted into a detection means at the work machine to initiate the remote operation mode, providing a tangible verification step that prevents accidental activation while maintaining software usability for displaying all vehicles.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple activation stages are implemented to improve safety, then the risk of accidental activation is reduced, but the complexity of the activation process increases

Engineering Contradiction:
ImprovesafetyVSAvoidactivation process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The activation process is segmented into two distinct parts: (1) inserting the physical safety key at the work machine to initiate remote operation mode, and (2) selecting the vehicle from the list in the remote control station software. This segmentation maintains safety through the physical key requirement while keeping the software interface simple and usable.

Inventive Principle:
Principle #1Segmentation

3Reliability

If a physical safety key is required at the work machine to initiate remote operation mode, then the risk of accidental activation is reduced, but the ease of operation decreases

Engineering Contradiction:
ImprovesafetyVSAvoidease of activation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The safety key system is self-verifying through the detection means at the work machine. When the key is inserted, the system automatically detects it and initiates the remote operation mode without requiring additional manual verification steps, maintaining ease of operation once the key is obtained.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3105646B1Arrangement for initiating a remote operation mode
Publication Date: 2021.03.03 SANDVIK MINING & CONSTR OY
  • EP3105646B1 patent drawingFigure 1~2
  • EP3105646B1 patent drawingFigure 3
  • EP3105646B1 patent drawingFigure 4a~4b

AI summary

A method for initiating a remote operation mode of a work machine, the method comprising: providing the work machine with a work machine-specific safety key; receiving, at a remote control station, a notification from the work machine in response to initiating the remote operation mode of the work machine by said safety key; acknowledging the work machine as being included in a safety system of the remote control station; and configuring the remote control station to start the remote operation mode of the work machine.