Wireless Base Station Relay Switching for Stable AMR Communication
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Solution Overview
Problem
In environments like factories or warehouses, maintaining stable wireless communication between automated mobile robots (AMRs) and base stations is challenging due to factors such as changes in item arrangement and human movement, especially when using 5G wireless communication standards, which can lead to deteriorated communication states.
Innovation Solution
A wireless communication system that includes a control system capable of switching between direct communication and sidelink communication, using a relay terminal to maintain stable operation of AMRs by dynamically adjusting communication routes based on signal quality and robot movement, with the control system transmitting control signals and operation signals through either direct or relay communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If direct wireless communication between base station and AMR is used, then communication speed and latency are improved, but communication stability deteriorates in areas with poor signal coverage
Solution Approach 1:
The patent introduces a relay terminal as an intermediary device between the base station and AMRs in areas with poor direct communication coverage. The relay terminal receives signals from the base station and forwards them to the AMR, and vice versa, thereby improving communication stability without compromising the speed and low latency characteristics of direct communication in areas with good signal coverage.
Solution Approach 2:
The patent implements dynamic switching between direct communication and relay communication modes based on the communication environment. The system continuously monitors signal quality and automatically selects the optimal communication path, transitioning from direct communication (for speed) to relay communication (for stability) when direct signal quality deteriorates, thus resolving the contradiction between speed and stability.
2Reliability
If relay communication is used to improve communication stability, then communication coverage is extended, but communication latency increases
Solution Approach 1:
The system dynamically adjusts the communication path based on real-time signal quality assessment. Relay communication is activated only when direct communication quality falls below a threshold, minimizing the use of relay paths and thus reducing overall latency while maintaining stability where necessary.
Solution Approach 2:
The relay terminal is designed to efficiently forward signals with minimal processing delay. The system autonomously manages the relay communication process, including automatic connection establishment and signal routing, reducing the time overhead introduced by the relay mechanism while maintaining communication stability.
3Adaptability or versatility
If the control system dynamically switches between direct and relay communication, then communication adaptability is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors communication signal quality and automatically adjusts the communication mode (direct or relay) based on the monitored conditions. This feedback-driven approach enables the system to adapt to changing environments without requiring complex manual configuration or control logic, thus improving adaptability while managing system complexity.
Data Source
AI summary
According to one embodiment, a wireless base station includes a transmitter and a receiver. The transmitter transmits a control signal and one or more operation signals to the second wireless communication terminal. The control signal instructs to transmit a signal that requests terminal-to-terminal communication between a first wireless communication terminal and the second wireless communication terminal. The operation signals are used for operating at least a part of the first wireless communication terminal. The receiver is capable of receiving at least one of a response signal or a data signal transmitted from the first wireless communication terminal to the second wireless communication terminal after the operation signals are transmitted.