RFID Transponder Power Management via Capacitor Discharge
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Solution Overview
Problem
Existing systems fail to effectively transmit RFID signals while conserving battery power in shot tracking devices attached to golf clubs, which is crucial for efficient data transmission during golf swings.
Innovation Solution
A circuit design that includes a resistor in series with a power source, a capacitor, and an automatic switch, allowing controlled charging and power flow to a microprocessor and radiofrequency transceiver, enabling efficient signal transmission with minimal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous power is supplied to the RFID transceiver for signal transmission, then signal transmission reliability is improved, but battery power consumption increases
Solution Approach 1:
The patent implements periodic power supply to the RFID transceiver through a capacitor that charges during non-transmission periods and discharges to provide power during transmission bursts. This periodic action allows the system to maintain reliable signal transmission when needed while conserving battery power during idle periods, directly resolving the contradiction between transmission reliability and power consumption.
Solution Approach 2:
The capacitor is charged in advance during periods when the golf club is not being used or during the swing preparation phase. This preliminary energy storage ensures that when a shot is taken and signal transmission is required, power is already available in the capacitor, eliminating the need for continuous battery power supply and thus reducing overall power consumption while maintaining transmission reliability.
2Use of energy by moving object
If a capacitor is added to control charging rate, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The capacitor serves as an intermediary energy storage element between the battery and the RFID transceiver circuit. By introducing this single passive component, the system achieves controlled power delivery without requiring complex power management ICs or multiple control circuits. The capacitor's natural charge/discharge characteristics provide the necessary power regulation, simplifying the overall circuit design while reducing power consumption.
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 allows for the transmission of RFID signals from golf club shot tracking devices while significantly conserving battery power, ensuring reliable data transmission with controlled power usage.
Implementation Method 1
a capacitor, allowing that capacitor to be charged at a controlled rate
Implementation Method 2
a resistor in series with a power source prior to a capacitor, allowing that capacitor to be charged at a controlled rate
Implementation Method 3
further comprising an automatic switch, allowing power to flow when desired
Data Source
AI summary
The present invention is a transponder for transmitting a RFID signal for shot tracking a golfer's round of golf while conserving battery power, comprising a battery in electrical communication with a resistor, the resistor in electrical communication with a capacitor and a load switch, which in turn is in electrical communication with a microprocessor comprising a radiofrequency transceiver.