Handling Machine Alert System for Tipping Risk

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Solution Overview

Problem

Users of wheeled handling machines often engage in risky behavior, such as driving at excessive speeds with the handling arm in the raised position, which can lead to tipping over, and existing safety systems are inadequate in addressing these risks effectively.

Innovation Solution

A wheeled handling machine equipped with a system that determines parameters like speed and arm angular position, triggering warnings through data transmission to a remote server and emission of visual, audible, or vibratory signals when threshold values are exceeded, using a set of predefined warning rules to alert the driver and potentially external environments of potentially dangerous driving conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the handling machine operates at high speed with the arm in raised position, then productivity is improved, but the risk of tipping over increases

Engineering Contradiction:
Improveoperating speedVSAvoidstability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary assessment of tipping risk by calculating the tipping moment and comparing it against threshold values before the actual tipping event can occur. Sensors continuously monitor arm position, machine inclination, and operational parameters to predict dangerous conditions in advance, allowing preventive warning signals to be issued to the operator before instability actually occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system establishes a closed-loop feedback mechanism where sensors continuously monitor machine parameters (arm angle, inclination, speed), the control unit processes this data to assess tipping risk, and warning signals are issued based on the assessment. This ongoing feedback loop allows the system to adapt to changing operational conditions and provide real-time guidance to prevent tipping over while maintaining productive operation.

Inventive Principle:
Principle #23Feedback

2Reliability

If a safety warning system is implemented, then reliability is improved, but device complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit serves multiple functions: it processes sensor data from various sources (arm position sensors, inclination sensors, speed sensors), calculates tipping moments, compares values against thresholds, and generates appropriate warning signals. By consolidating these diverse functions into a single multi-functional control unit, the system achieves comprehensive safety monitoring without proportionally increasing overall system complexity.

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

Solution Approach 2:

The system monitors changes in critical parameters (arm angle, machine inclination, operational speed) and triggers warning signals based on threshold crossings. By focusing on parameter changes rather than requiring complex analysis of all possible failure modes, the system achieves effective safety monitoring with relatively simple threshold-based logic that is easy to implement and adjust.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20230271818A1Handling machine having an arm and corresponding alert method
Publication Date: 2023.08.31 MANITOU BF SA
  • US20230271818A1 patent drawing
  • US20230271818A1 patent drawing
  • US20230271818A1 patent drawing

AI summary

The invention relates to a rolling handling machine (1) having an arm. The machine comprises an alert system comprising a memory in which are stored a plurality of alert rules for triggering at least one action from among transmitting data relating to the determined values of said parameters to a remote server (31); and emitting a visual, and/or sound, and/or vibration signal to alert the machine's driver. The triggering of an action occurs according to the speed of movement of the machine and the angular position of the arm. The invention also relates to an alert method and to a corresponding program product.