Radio Localization Safety System with Redundant Transponders

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Solution Overview

Problem

Current industrial safety systems are limited to local hazard detection and do not provide comprehensive, forward-looking safety measures, as they primarily focus on local presence or approach of persons, which can lead to delayed hazard detection and invasive intervention in automation routines.

Innovation Solution

A safety system utilizing a radio location system with multiple radio stations and transponders to track the positions of objects in real-time, enabling the detection and continuous monitoring of multiple persons and mobile machines across larger zones, allowing for more invasive and productivity-optimizing risk reduction measures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If local safety concepts are used to detect presence or approach of persons, then local hazard detection is achieved, but comprehensive safety coverage and early hazard detection are limited

Engineering Contradiction:
Improvesafety coverageVSAvoidsystem scope
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple radio location systems with a central control unit to create a comprehensive safety network that monitors positions of multiple objects simultaneously. This combination enables zone-wide safety coverage while maintaining manageable system architecture through centralized processing.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The radio location system serves multiple functions: it tracks positions of persons and mobile machines, provides real-time monitoring across large zones, and enables both local and comprehensive safety concepts. This multi-functionality allows the system to address various safety scenarios without requiring separate specialized systems.

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

2Loss of time

If comprehensive tracking of multiple objects is implemented, then early hazard detection is enabled, but system complexity and resource requirements increase

Engineering Contradiction:
Improvehazard detection timeVSAvoidtracking system complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical or optical tracking systems with a radio-based location system that uses radio waves to determine positions. This substitution enables comprehensive tracking of multiple objects across large zones with lower system complexity and resource requirements compared to traditional mechanical tracking methods.

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

3Reliability

If multiple radio transponders are deployed at objects, then position data reliability is improved through redundancy, but system cost and complexity increase

Engineering Contradiction:
Improveposition data reliabilityVSAvoidtransponder deployment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses multiple radio transponders to obtain redundant position data and compares the measurements to detect and correct errors. This feedback mechanism ensures reliable position information by cross-validating data from multiple sources, thereby improving safety without requiring overly complex deployment configurations.

Inventive Principle:
Principle #23Feedback

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

This system enables early detection of impending hazards, reduces risk through less invasive measures, and improves spatial information quality by providing comprehensive, forward-looking safety concepts, with redundant position determination and error correction mechanisms for reliable localization data.

Implementation Method 1

at least two respective radio transponders (6) are arranged at the objects (2), wherein the two radio transponders (6) are arranged spaced apart from one another, wherein position data of the radio transponders (6) and thus positions data of the objects (2) can be determined by means of the radio location system (4)

Methodology Applied
Scientific EffectRadio signal transmission and reception: Electromagnetic Induction

Data Source

PatentUS12007495B2Safety system and method of localization
Publication Date: 2024.06.11 SICK AG
  • US12007495B2 patent drawing
  • US12007495B2 patent drawing
  • US12007495B2 patent drawing

AI summary

A method and a safety system for localizing at least two objects has a control and evaluation unit, and at least one radio location system. The radio location system has at least three arranged radio stations, wherein at least two respective radio transponders are arranged at the objects. The two radio transponders are arranged spaced apart from one another. Position data of the radio transponders and thus position data of the objects can be determined by means of the radio location system, and the position data can be transmitted from the radio station of the radio location system to the control and evaluation unit and/or the position data can be transmitted from the radio transponder to the control and evaluation unit. The control and evaluation unit is configured to cyclically detect and compare the position data of the radio transponders.