RFID Antenna Switch for Wireless Setting Error Prevention
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Solution Overview
Problem
Electronic apparatuses with wireless communication modules and wired communication ports face issues with erroneous operations due to inappropriate setting values, requiring countermeasures to prevent such errors.
Innovation Solution
Incorporating a switch to electrically connect or interrupt the antenna and control circuit, allowing for controlled wireless communication and preventing erroneous operations by ensuring appropriate setting values are written to the memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wired communication port is provided in the wireless communication module for easy setting value writing, then ease of operation is improved, but reliability deteriorates due to risk of erroneous operations with inappropriate setting values
Solution Approach 1:
The patent applies preliminary action by requiring the electronic apparatus to determine whether to allow wireless communication before actually performing the communication. The control circuit checks if the apparatus is in a state where wireless communication is permitted (e.g., whether the apparatus is properly installed and initialized) before accepting setting values or commands from the wireless communication module, thereby preventing erroneous operations before they can occur.
Solution Approach 2:
The patent implements feedback by having the control circuit continuously monitor the operational state of the electronic apparatus and use this information to control whether the wireless communication module can receive or execute commands. The control circuit provides feedback about the apparatus state (such as whether it is in installation mode, operational mode, or error state) to the wireless communication module, enabling dynamic control of communication accessibility based on current operational conditions.
2Ease of operation
If wireless communication module allows unrestricted communication for ease of setting, then ease of operation is improved, but manufacturing precision deteriorates due to potential writing of incorrect setting values
Solution Approach 1:
The control circuit performs preliminary verification before accepting setting values from the wireless communication module. It checks whether the electronic apparatus is in an appropriate state (such as installation mode or configuration mode) that permits wireless communication and setting value writing. This preliminary check ensures that setting values are only written when the apparatus is properly prepared, preventing incorrect settings from being applied during operational phases.
Solution Approach 2:
The control circuit provides feedback about the operational state to the wireless communication module, indicating whether the current state permits communication and setting value writing. This feedback mechanism ensures that setting values can only be written during appropriate phases (such as initial installation or authorized configuration periods), thereby maintaining manufacturing precision while allowing ease of operation during valid windows.
Data Source
AI summary
The present invention addresses the problem of preventing the malfunction of an electronic apparatus containing an RFID module with a wired communication port. An electronic apparatus is provided with: an RFID module containing an antenna, a control circuit, a memory connected to the control circuit, and a wired communication port; a processing unit connected to the RFID module via the wired communication port; and a switch that electrically connects or interrupts the antenna and the control circuit.