Tag Communication Device Sequential Wireless Tag Rewriting
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Solution Overview
Problem
In image forming devices, the proximity of multiple wireless tags requires mechanical measures like radio wave shielding to facilitate sequential communication, which is complex and inefficient.
Innovation Solution
A tag communication device with a processor, communication unit, selection unit, request unit, and control unit that wirelessly communicates with wireless tags, designates a mask pattern, and repeatedly transmits commands to ensure sequential rewriting of identification codes without mechanical shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical measures like radio wave shielding members are arranged to enable sequential communication of multiple wireless tags, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent replaces mechanical radio wave shielding members with a software-based sequential communication control mechanism. The control unit manages communication timing and tag selection through command sequences, eliminating the need for physical shielding structures while maintaining reliable sequential communication between the image forming device and multiple wireless tags.
2Reliability
If mechanical shielding measures are implemented for sequential tag communication, then communication interference is reduced, but ease of operation deteriorates
Solution Approach 1:
The patent replaces complex mechanical shielding arrangements with automated control logic in the control unit. The system automatically manages tag selection and communication sequencing through software commands, eliminating the need for manual configuration or adjustment of physical shielding components, thereby significantly improving ease of operation.
3Productivity
If multiple wireless tags are positioned close together for label printing, then productivity is improved, but communication reliability deteriorates due to interference
Solution Approach 1:
The patent implements periodic action through sequential communication cycles. The control unit systematically selects and communicates with each wireless tag one by one in a defined sequence, using command-response cycles that include selection commands, data reading commands, and rewriting commands. This periodic selection process ensures reliable communication even when multiple tags are positioned close together, maintaining both productivity and communication reliability.
Data Source
AI summary
A tag communication device includes a communication device and one or more control processors configured to cause the communication device to transmit a first command for notifying selection of a wireless tag including an identification code including a mask pattern that is a part of the common portion of identification codes. The one or more control processors are configured to cause the communication device to transmit a second command for requesting a response to the selected wireless tag and to cause the communication device to transmit a third command for requesting rewriting to the wireless tag that transmits data in response to receiving the data transmitted from one wireless tag. The one or more control processors are configured to cause a repeat of transmission of the second command if a third command is transmitted until the third commands are transmitted to each of a predetermined number of the wireless tags.