Redundant Wireless Network Switching for Factory Communication Failures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Industrial terminals supporting heterogeneous wireless communication (Wi-Fi or Private-5G) fail to switch communication methods when issues arise, leading to non-operation and communication delays, especially in mission-critical equipment like AGVs, due to inaccurate handover parameters and communication disconnection problems.
Innovation Solution
A wireless connecting device and method that simultaneously connects to both Wi-Fi and Private-5G networks, using a control unit to monitor communication failures and switch between them based on ping test delay times, ensuring stable communication by prioritizing the network with shorter delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic switching based on wireless signal sensitivity is implemented, then communication failure recovery is enabled, but switching delay occurs when the situation just before threshold is prolonged
Solution Approach 1:
The system performs preliminary actions by pre-configuring multiple communication modules (Wi-Fi and P-5G) and pre-establishing switching criteria based on signal sensitivity thresholds. When the primary communication signal approaches the threshold, the system proactively prepares for switching before actual failure occurs, thereby enabling rapid recovery without significant delay.
Solution Approach 2:
The system continuously monitors wireless signal sensitivity and provides feedback to the control unit. When the signal quality falls below the preset threshold, the feedback mechanism triggers automatic switching to alternative communication modules, ensuring timely recovery while minimizing delay through real-time adaptive control.
2Stability of the object's composition
If handover parameters are adjusted for accurate switching, then communication stability improves, but management complexity increases
Solution Approach 1:
The system implements self-service through automatic handover parameter configuration. The control unit autonomously adjusts switching thresholds and parameters based on real-time signal quality monitoring, eliminating the need for manual parameter management while maintaining communication stability through adaptive control.
Solution Approach 2:
The system dynamically changes handover parameters based on communication conditions. The control unit automatically adjusts switching thresholds and timing parameters according to signal quality variations, ensuring optimal communication stability without requiring complex manual parameter management.
3Adaptability or versatility
If connection process from physical layer to application layer is performed in heterogeneous network, then communication compatibility is achieved, but delay time increases
Solution Approach 1:
The system performs preliminary actions by pre-establishing communication modules across different layers (physical layer Wi-Fi and application layer P-5G) before failure occurs. This layered preparation enables rapid switching with minimal delay while maintaining compatibility across heterogeneous networks.
Solution Approach 2:
The system implements dynamic switching between communication layers based on real-time conditions. The control unit can flexibly transition between physical layer (Wi-Fi) and application layer (P-5G) communications, optimizing both compatibility and response time through adaptive layer selection.
Data Source
AI summary
A wireless connecting device is provided for minimizing non-operation due to communication disconnection and/or delay of wireless equipment in a production factory environment. The wireless connecting device includes a connection unit communicatively connected to wireless equipment in a wired manner. The device further includes a control unit configured to execute, as main communication, a first communication mode in which the wireless equipment is connected to one of two network blocks, which are in the redundant environment; check whether a communication failure occurs during the execution of the first communication mode; and when the communication failure occurs, execute a second communication mode in which the wireless equipment is connected to the other of the two network blocks. The device further includes a communication circuit configured to connect the wireless equipment to one of the two network blocks according to the first communication mode or the second communication mode.