Passive RFID Belt Sensing Without Battery Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power transmission belts require a battery-powered transmitter to send state information detected by sensors, necessitating battery replacement, which is time-consuming and impractical, especially since the battery cannot be replaced during belt operation.
Innovation Solution
A power transmission belt equipped with a passive RFID that uses electromagnetic waves from a reader to transmit state information detected by sensors, eliminating the need for a battery and allowing for continuous operation without interruptions for battery replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery-powered transmitter is used to transmit state information from the belt, then the state information can be transmitted to the outside, but the battery needs periodic replacement which takes time and effort and cannot be done during belt operation
Solution Approach 1:
The patent extracts the power source requirement from the transmitter by using a passive RFID system. The active battery-powered transmitter is replaced with a passive tag that draws power from the reader's electromagnetic field, eliminating the need for battery installation and replacement while maintaining the ability to transmit state information from the belt.
Solution Approach 2:
The patent replaces the mechanical/electrical battery-powered transmission system with an electromagnetic field-based passive RFID system. The active electronic transmitter powered by a battery is substituted with a passive tag that communicates through electromagnetic coupling with a reader, eliminating mechanical battery replacement operations.
2Ease of operation
If a battery-powered transmitter is embedded in the belt, then state information can be transmitted, but the battery cannot be replaced during belt operation and must be replaced after stopping the belt
Solution Approach 1:
The passive RFID tag serves itself by drawing operating power from the reader's electromagnetic field during the transmission process. The tag contains no battery or power source, so it automatically receives energy from the external reader when needed, eliminating the need for manual battery replacement and allowing continuous belt operation.
3Power
If a battery is mounted on the belt to power the transmitter, then the transmitter can operate, but the belt weight increases and reliability decreases
Solution Approach 1:
The patent removes the battery power source from the belt assembly entirely. The transmitter is replaced with a passive RFID tag that contains no power source, extracting the weight burden from the moving belt while maintaining transmission capability through electromagnetic coupling with a stationary or mobile reader.
Solution Approach 2:
The patent substitutes the battery-powered electrical system with an electromagnetic field-based passive system. The active transmitter requiring battery power is replaced with a passive tag that communicates through electromagnetic induction, eliminating the need for heavy battery components on the belt.
4Power
If a battery is mounted on the belt to power the transmitter, then the transmitter can operate, but the reliability decreases due to battery replacement requirements
Solution Approach 1:
The patent extracts the unreliable battery component from the system and replaces it with a passive RFID tag that has no consumable power source. This eliminates the failure mode associated with battery depletion and replacement, significantly improving system reliability while maintaining transmission functionality.
Solution Approach 2:
The patent uses a passive RFID tag that has no battery to replace the battery-powered transmitter. The passive tag is essentially a disposable or long-life component that draws power from the reader's field, eliminating the need for periodic battery replacement and improving overall system reliability.
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 solution enables the belt to operate without batteries, reducing weight and increasing reliability, while preventing performance degradation and maintaining durability by avoiding the need for battery replacement.
Implementation Method 1
a passive RFID also provided in the laminate, including an IC chip and an antenna, and configured to transmit state information on the belt detected by the sensor to an outside
Data Source
AI summary
A belt includes a laminate including a back surface layer disposed on a back surface side and a tension member layer including a tension member. The belt includes a sensor provided in the laminate and configured to detect a state of the belt, and a passive RFID also provided in the laminate, including an IC chip and an antenna, and configured to transmit state information on the belt detected by the sensor to an outside.