Rotary Tower Ballast Obstacle Detection for Safe Rotation Control

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Solution Overview

Problem

Existing operator vehicles with rotary towers lack effective means to control the trajectory of the ballast during rotation, posing a risk of impact with obstacles and potential dangerous oscillations, as current systems only provide warning signals without direct control.

Innovation Solution

A ballast system equipped with a detecting device that emits proximity signals to the operator or a control unit, which can adjust the rotary motor to prevent impact by slowing or stopping the tower's rotation based on obstacle detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the ballast is equipped with a detecting device that provides warning signals, then the operator is alerted to potential obstacles, but the operator cannot directly control the tower rotation to prevent impact

Engineering Contradiction:
Improvesafety of tower rotationVSAvoidoperator control capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The detecting device continuously monitors the trajectory of the ballast during tower rotation and provides real-time feedback to the control unit. When an obstacle is detected within a safety distance, the system generates a proximity signal that feeds back to automatically control the rotary motor, creating a closed-loop control system that resolves the contradiction between safety monitoring and operational control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control unit acts as an intermediary between the detecting device and the rotary motor. It receives proximity signals from the detecting device and translates them into appropriate control actions for the rotary motor, enabling automatic intervention to prevent ballast impact while maintaining smooth operation of the tower rotation system

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the operator focuses attention on the operator arm and its manoeuvring, then the apparatus can be operated efficiently, but the risk that the ballast can strike an obstacle increases

Engineering Contradiction:
Improveefficiency of apparatus operationVSAvoidrisk of ballast impact
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The detecting device and control unit form an autonomous safety system that independently monitors the ballast trajectory and automatically intervenes to prevent obstacles. This self-service mechanism allows the operator to focus entirely on operating the apparatus without needing to divide attention between the operator arm and ballast position, thereby maintaining productivity while eliminating the impact risk

Inventive Principle:
Principle #25Self-service

3Reliability

If the tower rotation is automatically controlled based on proximity signals, then ballast impact can be prevented, but the system complexity increases

Engineering Contradiction:
Improveprevention of ballast impactVSAvoidcontrol system structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit is designed to perform multiple functions: it processes proximity signals from the detecting device, controls the rotary motor for tower rotation, and integrates with the existing operator vehicle control system. This multi-functionality allows the system to achieve automatic ballast protection without requiring a completely separate control system, thereby limiting the increase in overall system complexity

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

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

Enables safe and controlled rotation of the tower by allowing the operator to focus on the apparatus, reducing the risk of ballast impact and oscillations through direct or indirect control of the rotary motor.

Implementation Method 1

The detecting device (11, 12, 13) is designed for detecting the presence of an obstacle positioned at a distance which is less than a predetermined safety distance from the main body (10)

Methodology Applied
Scientific EffectRadar: Radar

Data Source

PatentEP3835253B1Operator vehicle with rotary tower and ballast
Publication Date: 2026.02.18 MANITOU ITALIA SRL
  • EP3835253B1 patent drawingFigure 1
  • EP3835253B1 patent drawingFigure 2

AI summary

Described is ballast for a rotary tower, comprising: a main body (10), equipped with coupling means designed to allow a connection to the rotary tower; a detecting device (11, 12, 13), associated with the main body (10), designed for detecting the presence of an obstacle positioned at a distance less than a predetermined safety distance from the main body (10), and for emitting a proximity signal, signifying the presence of an obstacle at a distance less than the safety distance from the main body (10).