Wireless FA Master Station Feedback Mechanism
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Solution Overview
Problem
Conventional FA systems rely on wired communication networks, which are impractical for detecting communication errors in wireless environments, posing risks of equipment damage and human safety issues due to undetected errors in high-reliability applications like industrial robots.
Innovation Solution
A wireless communication system with a master station and slave stations that utilize a normal-frame transmitting unit and execution-instruction-signal generating unit to ensure reliable operation instructions are transmitted and received within a predetermined response waiting time, allowing for retransmission and operation execution or waiting based on confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used to replace wired communication in FA systems, then ease of operation and installation are improved, but communication error detection capability deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where slave stations send response signals back to the master station to confirm receipt of operation instructions. The master station transmits instructions and waits for acknowledgment, creating a closed-loop communication system that enables error detection in wireless environments while maintaining ease of installation.
Solution Approach 2:
The patent uses predetermined response waiting times and pre-established communication protocols to prepare for potential transmission errors before they occur. By setting advance timing parameters and response expectations, the system can detect and handle communication failures promptly without compromising installation simplicity.
2Device complexity
If conventional wired communication protocols are applied to wireless communication, then device complexity is reduced, but communication reliability deteriorates
Solution Approach 1:
The patent replaces the mechanical wired connection assumption with wireless communication mechanisms that use electromagnetic signals and software-based acknowledgment protocols. This substitution maintains protocol simplicity while adding reliability through response confirmation mechanisms inherent to wireless communication systems.
3Productivity
If operation instructions are transmitted without confirmation in wireless communication, then productivity is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent implements periodic communication cycles where the master station transmits operation instructions and slave stations respond within predetermined time intervals. This periodic acknowledgment system ensures coordinated operation accuracy while maintaining high productivity through efficient time-management and structured communication rhythms.
Data Source
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AI summary
A wireless communication system including a master station, and slave stations that execute a predetermined operation based on an operation instruction transmitted by the master station, in which the master station includes a normal frame processor that generates an operation instruction, and a Go/Stop signal processor that generates an execution instruction signal instructing to execute the operation instruction to transmit the signal when a response to the operation instruction is obtained from all the slave stations during a predetermined response waiting time, each of the slave stations include an execution-instruction-signal receiving unit that receives the execution instruction signal, and the execution-instruction-signal receiving unit executes an operation corresponding to the execution instruction signal when receiving the execution instruction signal or waits execution of the corresponding operation until the execution instruction signal corresponding to the operation instruction is received.