Warehouse Machine Access Control Using Technician Localization
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Solution Overview
Problem
Existing methods for maintaining and controlling machinery in warehouses, particularly those using radio-based connections, fail to ensure that the service technician has visual access to the machinery, violating regulatory requirements.
Innovation Solution
The method employs high-precision localization services within local radio networks, such as 5G, LTE, and UWB, to ensure the service technician's visibility and proximity to the machinery, allowing remote access only when sight contact is confirmed, thereby enhancing maintenance security and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If radio-based connections are used for remote access to machinery, then ease of operation is improved, but reliability of regulatory compliance deteriorates
Solution Approach 1:
The system continuously monitors the service technician's location via localization services and provides feedback to the central controller. Access is granted or revoked dynamically based on whether the technician remains within the required visual range of the machinery, ensuring ongoing compliance with safety regulations.
Solution Approach 2:
A central controller acts as an intermediary between the mobile computer and the machinery. It mediates access requests by verifying location data from localization services and enforcing the visual contact requirement, thereby ensuring regulatory compliance while enabling remote operation.
2Measurement precision
If high-precision localization services are implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system leverages existing multi-functional radio infrastructure (WiFi, cellular networks) that already provides both communication and localization capabilities. By utilizing these existing services for dual purposes, the system achieves high measurement precision without adding dedicated complex localization hardware.
Solution Approach 2:
The mobile device's existing radio communication components serve dual purposes: maintaining network connectivity and providing localization data. The system utilizes self-contained sensors and network infrastructure already present in the device, avoiding the need for additional specialized equipment.
Data Source
AI summary
A method for maintaining, commissioning and checking systems in warehouses, where a service technician has sight of the system in question and, by way of a mobile computer, makes wireless contact with the controller of the system in order to take control thereof, where taking control by the mobile computer is permitted by a central controller only if the service technician can have sight contact with the corresponding system, for which purpose localization services of a local radio network are used for the determination of the position and/or of the orientation of the mobile computer of the service technician.