RFID Tag Communication Control for Static Discharge Management
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Solution Overview
Problem
RFID tag information communicating apparatuses face challenges in ensuring reliable information reading due to static electricity, which can cause electrical charging of RFID circuit elements, leading to failed reply signals and uncertainty about the soundness of the RFID circuit elements.
Innovation Solution
The apparatus employs electrostatic-safe communication control to repeatedly transmit command signals until information acquisition is unaffected by static electricity, pausing and resuming carrier wave transmission to prevent energy loss and ensure successful data reading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If command signals are repeatedly transmitted to acquire information from RFID circuit elements, then the probability of successful information reading is improved, but energy loss increases and communication time extends
Solution Approach 1:
The system performs preliminary actions by pausing carrier wave transmission before attempting command signal transmission. This pause allows static electricity to discharge in advance, preventing potential communication failures and avoiding unnecessary energy waste from repeated failed transmission attempts.
Solution Approach 2:
The system implements periodic action by alternating between pausing carrier wave transmission and transmitting command signals. This periodic pattern continues until successful information acquisition, optimizing the balance between reliability improvement and energy consumption by systematically retrying only when conditions are favorable.
2Reliability
If command signals are repeatedly transmitted to acquire information from RFID circuit elements, then the probability of successful information reading is improved, but communication time extends
Solution Approach 1:
The system performs preliminary actions by pausing carrier wave transmission before attempting command signal transmission. This pause allows static electricity to discharge in advance, preventing potential communication failures and avoiding unnecessary time waste from repeated failed transmission attempts.
Solution Approach 2:
The system implements periodic action by alternating between pausing carrier wave transmission and transmitting command signals. This periodic pattern continues until successful information acquisition, optimizing the balance between reliability improvement and communication time by systematically retrying only when conditions are favorable.
3Use of energy by moving object
If carrier wave transmission is continuous, then energy efficiency is maintained, but static electricity discharge is prevented and communication failures occur
Solution Approach 1:
The system uses periodic action by intermittently pausing carrier wave transmission to allow static electricity discharge, then resuming transmission for command signal communication. This periodic interruption prevents communication failures while minimizing energy waste by maintaining transmission during successful communication windows.
Solution Approach 2:
The system implements feedback by monitoring communication success and adjusting carrier wave transmission accordingly. When communication fails due to static electricity, the system pauses transmission to allow discharge, then resumes when conditions improve, optimizing both energy efficiency and communication reliability through adaptive control.
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
This approach improves the probability of successful information reading from RFID circuit elements by managing static electricity and distinguishing between charge discharge and potential fluctuations, thereby preventing unnecessary communication attempts and energy loss.
Implementation Method 1
a command signal transmitted from command transmission means (306) is transmitted to the RFID circuit element via apparatus antenna means (240)
Implementation Method 2
static electricity may be produced for some reasons or other, such as the equipment material or member wear and tear, electrically charging the RFID circuit element during communication
Data Source
Figure 1
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AI summary
An RFID tag information communicating apparatus (1) comprises an RFID communication control part (305) configured to generate and transmit via a loop antenna (LC) a command signal for reading information from an RFID circuit element (To), receive a reply signal transmitted from the RFID circuit element (To) in accordance with this command signal so as to acquire information, and repeatedly transmit a plurality of times the command signal to the RFID circuit element (To) until the acquisition of this information succeeds, and a main body control part (110) configured to prohibit transmission of the command signal by the RFID communication control part (305) after a predetermined electrostatic discharge retry time period has elapsed after the transmission of a start command signal.