Industrial Vehicle Remote Stop Control to Prevent Continued Motion

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Solution Overview

Problem

In industrial vehicle remote operation systems, there is a concern for safety due to the potential for continuous operation of industrial vehicles after remote operation is stopped, and the risk of operators forgetting to stop the vehicle, leading to safety hazards.

Innovation Solution

An industrial vehicle remote operation system that includes a remote operation device with a remote-operation stop control part, which performs an operation stop control to stop the industrial vehicle's operation and then stops the remote operation, allowing the operator to shift to other tasks without needing to manually stop the vehicle, and includes modes to prevent simultaneous remote and direct operation, ensuring safety by shifting control modes based on occupancy and operation status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the operator performs remote operation to stop the industrial vehicle, then the vehicle operation can be stopped, but the operator may forget to perform the remote operation to stop the vehicle

Engineering Contradiction:
ImprovesafetyVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The remote operation device automatically performs the vehicle stop operation without requiring manual intervention from the operator. The device monitors its own operation state and autonomously executes the stop command, eliminating the need for the operator to remember to stop the vehicle.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system provides feedback to the operator about the vehicle's operation state and the remote operation status. This feedback mechanism ensures the operator is aware of the vehicle state while the system handles the stopping action automatically.

Inventive Principle:
Principle #23Feedback

2Productivity

If the remote operation is stopped during vehicle operation, then the operator can perform another work, but the vehicle operation may continue even after remote operation is stopped

Engineering Contradiction:
Improveoperator efficiencyVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The remote operation device is configured to automatically execute the vehicle stop operation as a preliminary action when the remote operation is terminated. This ensures the vehicle stops promptly when the operator switches to another task, preventing continuous operation after remote control is discontinued.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the operator needs to perform both remote operation and vehicle stopping operations, then complete control is achieved, but the operation process becomes complex and time-consuming

Engineering Contradiction:
Improvecontrol completenessVSAvoidoperation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges the remote operation stop function with the vehicle stop control function into a single integrated operation. When the operator stops the remote operation, the system automatically combines both actions (stopping remote control and stopping the vehicle) into one operation, eliminating the need for separate control steps.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11958732B2Industrial vehicle remote operation system, remote operation device, industrial vehicle, remote memory storing industrial vehicle remote operation program, and industrial vehicle remote operation method
Publication Date: 2024.04.16 TOYOTA INDUSTRIES CORP
  • US11958732B2 patent drawing
  • US11958732B2 patent drawing
  • US11958732B2 patent drawing

AI summary

An industrial vehicle remote operation system includes an industrial vehicle including a vehicle communication part that performs wireless communication; a remote operation device including a remote communication part that performs wireless communication with the vehicle communication part, wherein the remote operation device is used to remotely operate the industrial vehicle; and a remote-operation stop control part that, based on a fact that a remote-operation stop operation has been performed on the remote operation device in a situation where operation of the industrial vehicle is being performed through a remote operation by the remote operation device, performs an operation stop control for stopping the operation of the industrial vehicle, and stops the remote operation by the remote operation device after the operation stop control is completed.