Design and Development of a Roaming Wireless Safety Emergency Stop
Translated title
Entwurf und Entwicklung einer drahtlosen Roaming-Nothalts
Publication date
2024-05-23
Document type
Konferenzbeitrag
Organisational unit
arXiv ID
Conference
SIAS 2024 Safety of Industrial Automated Systems
Part of the university bibliography
✅
Keyword
IO-Link Wireless
Abstract
Modern manufacturing is characterized by a high degree of automation, with autonomous systems also frequently being used. In such environments human intervention in the event of malfunctions or maintenance becomes a rare but also necessary task. When human workers are no longer an integral part of the production process, but only intervene when necessary, e.g., in the case of unexpected machine behavior, appropriate safety solutions will become even more important. This work describes a wireless communication system enabling a flexible and safe emergency stop function for multiple automation cells. A portable emergency stop switch allows seamless transition between different wireless cells, ensuring functional safety. The communication protocol combines IO-Link Wireless features with the safety requirements already implemented in IO-Link Safety. Security requirements are fulfilled through encryption and authentication. The IO-Link Wireless roaming functionality is used to extend the system across several manufacturing cells. An experimental setup confirms the suitability of the system for various applications. The results demonstrate the effectiveness of the handover mechanism and evaluate the potential of the system to improve flexibility, availability and security in dynamic production environments. Future extensions could include the use of AI based evaluation of the radio signals for an intelligent cell handover.
Description
Preprint accepted for Safety of Industrial Automated Systems, SIAS 2024
Cite as
arXiv:2405.14552
Version
Submitted version under review
Access right on openHSU
Open access