Wireless Power Receiving Module for Safe Portable Measuring Instruments
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Solution Overview
Problem
Existing wireless power transfer technologies pose a risk of affecting the human body when high-power radio waves are radiated, and there is a need for battery replacement and disposal in portable measuring instruments.
Innovation Solution
A wireless power transfer system that includes a power receiving module with a power receiving antenna and a sensor to detect the presence of a person, allowing power transfer only when the instrument is within a safe distance and not in use, and utilizing a modular design to attach to existing measuring instruments without replacing batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless power transfer is performed using high-power radio waves, then power transfer efficiency is improved, but the harmful effect on the human body increases
Solution Approach 1:
The measuring instrument transmits beacon signals to notify the wireless power transfer apparatus of its usage state. The apparatus receives these signals and adjusts power transmission accordingly - transmitting power when the instrument is not in use and refraining when it is in use, thus preventing harmful exposure while maintaining efficient power transfer when safe
Solution Approach 2:
The system performs preliminary detection of the measuring instrument's usage state through beacon signals before initiating power transfer. This advance notification mechanism ensures that power is only transmitted when the instrument is confirmed to be unused, preventing harmful exposure from the outset
2Ease of operation
If a battery is used in the portable measuring instrument, then the instrument can operate independently, but the need for battery replacement and disposal arises
Solution Approach 1:
The patent replaces the mechanical battery system with a wireless electromagnetic power transfer system. The measuring instrument includes a power receiving antenna that captures electromagnetic waves from the wireless power transfer apparatus, converting electromagnetic energy to electrical energy to power the instrument, thereby eliminating batteries and their associated replacement and disposal issues
Solution Approach 2:
The wireless power transfer system provides multiple functions: it supplies power to the measuring instrument, enables remote power delivery without physical contact, and incorporates safety monitoring through beacon signal exchange, replacing the single function of a battery with a multi-functional wireless power ecosystem
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 system enables wireless power transfer to portable measuring instruments while minimizing human body exposure to radio waves and eliminating the need for battery replacement and disposal.
Implementation Method 1
power is transmitted through space by being carried on a radio wave
Data Source
AI summary
A portable measuring instrument is a portable measuring instrument that is supplied with power from a wireless power transfer apparatus that supplies power wirelessly, the instrument includes a sensor that is capable of detecting a person using the measuring instrument, a signal transmission part that transmits a beacon signal indicating a state of the measuring instrument detected by the sensor to the wireless power transfer apparatus, and a power receiving antenna that receives power transmitted from the wireless power transfer apparatus.