Printer Radio Wave Control for Reliable RFID Tag Activation
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Solution Overview
Problem
Existing printing apparatuses do not adequately adjust communication radio wave output to ensure consistent activation of RFID tags with varying electromotive performance, leading to potential malfunction and inefficiencies.
Innovation Solution
A printer with a feed path for continuous media containing RFID tags, a communication unit with an adjustable antenna, and a controller that adjusts the communication radio wave output and duty ratio to activate tags with low electromotive performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication radio wave output is increased to activate RFID tags with low electromotive performance, then the activation reliability of tags is improved, but the energy consumption increases
Solution Approach 1:
The communication radio wave output is dynamically adjusted based on the activation status of RFID tags. The controller monitors whether tags are successfully activated and automatically increases the radio wave output in subsequent cycles when activation fails, creating a dynamic adaptation mechanism that resolves the contradiction between reliability and energy consumption
Solution Approach 2:
The system changes the output parameter of the communication radio wave based on feedback from tag activation status. When tags with low electromotive performance fail to activate, the controller modifies the radio wave output parameter to a higher level in subsequent cycles, enabling reliable activation while minimizing unnecessary energy consumption
2Productivity
If the communication radio wave output is increased to ensure consistent tag activation, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The controller implements a feedback mechanism that monitors RFID tag activation status and automatically adjusts the communication radio wave output accordingly. This closed-loop control system ensures consistent tag activation and maintains printing productivity without requiring complex manual intervention or additional hardware
Solution Approach 2:
The communication unit performs self-adjustment of the radio wave output based on the activation status of RFID tags. The system automatically detects activation failures and increases output in subsequent cycles without external control, simplifying the overall device architecture while maintaining high productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures rapid activation of RFID tags with low electromotive performance, maintaining efficient printing operations and reducing malfunctions.
Implementation Method 1
a communication unit (40) that uses an antenna (42) to wirelessly communicate with one wireless tag (6) in the continuum, which is a wireless tag to be communicated, at a position facing the antenna
Implementation Method 2
activated when electric power generated by a predetermined communication radio wave is equal to or greater than predetermined electric power
Data Source
AI summary
A controller of a printer executes a radio wave adjustment processing of making at least one of an output of a predetermined communication radio wave or a duty ratio of the predetermined communication radio wave in a subsequent radio wave output cycle subsequent to a radio wave output cycle in which a wireless tag is not activated larger than that in the radio wave output cycle in which the wireless tag is not activated.