Power Receiving Device with Energy Storage for Remote Data Transmission
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Solution Overview
Problem
Conventional passive RFID tags have limited operational range and lifespan due to reliance on external power induction, while active tags face battery capacity constraints, leading to inefficient communication and environmental sensing.
Innovation Solution
A power receiving-type information acquisition and transmission device that incorporates a power receiver, storage, and transmitter, allowing for controlled information acquisition and transmission using external power waves, with timing controllers for efficient energy use and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a passive tag uses electron induction from a reader, then no battery is needed, but the communication distance becomes very short and the tag cannot operate independently
Solution Approach 1:
The device accumulates power in advance using a power storage unit before transmission is needed. This preliminary energy accumulation enables the tag to transmit signals over longer distances without requiring continuous external power supply or a battery, resolving the contradiction between low power consumption and extended communication range.
2Length of stationary object
If an active tag uses an embedded battery, then communication distance increases, but the lifespan is limited by battery capacity
Solution Approach 1:
The device harvests and accumulates power from external sources (such as radio waves or environmental energy) through the power receiver and stores it autonomously in the power storage unit. This self-powered approach eliminates the need for replaceable batteries, extending the device lifespan while maintaining extended communication capability.
3Use of energy by moving object
If a passive tag operates only when receiving electron induction, then power consumption is minimal, but the tag cannot sense or transmit information at arbitrary timings
Solution Approach 1:
The power storage unit accumulates energy in advance during periods when external power is available, enabling the sensor and transmitter to operate at arbitrary timings independent of external power induction. This resolves the contradiction by maintaining low overall power consumption while achieving operational flexibility.
4Use of energy by moving object
If communication frequency is reduced to save battery power, then power consumption decreases, but convenience and information collection efficiency degrade
Solution Approach 1:
By accumulating power in advance in the power storage unit, the device can transmit information at high frequency without depleting energy reserves. This enables frequent information collection and transmission while maintaining efficient power usage, resolving the contradiction between power consumption and productivity.
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
Enables continuous and remote information collection and transmission over extended distances without battery limitations, improving communication efficiency and reducing power consumption.
Implementation Method 1
a power receiver 110 that receives a power supply wave 105
Implementation Method 2
a power storage 120 that accumulates power obtained by the power receiver 110
Data Source
AI summary
A power receiving-type information acquisition and transmission device is provided with one or more power receivers that receive power supply waves that can supply power, one or more power storage means that store power obtained by the power receiving means, one or more information acquisition means that acquire information by expending at least part of the aforementioned power of the power receiver and/or the power storage means, and one or more information transmission means that utilize the power from the power storage means to transmit information externally. This enables regular or steady information collection, and enables externally transmitting the information stably and remotely, on a permanent basis, i.e., either over a short or long distance.